交叉参考Cross Reference
本申请要求于2023年6月16日提交中国专利局、申请号为202310723043.1、发明名称为“左右眼识别方法、装置、设备及介质”的中国专利申请，以及2023年7月21日提交中国专利局、申请号为202321941786.8、发明名称为“眼压测量装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application filed with the Chinese Patent Office on June 16, 2023, with application number 202310723043.1, and invention name “Left and right eye recognition method, device, equipment and medium”, and the Chinese patent application filed with the Chinese Patent Office on July 21, 2023, with application number 202321941786.8, and invention name “Intraocular pressure measurement device”, the entire contents of which are incorporated by reference in this application.
本申请涉及医疗器械技术领域，特别涉及一种眼压测量装置、左右眼识别方法和存储介质。The present application relates to the technical field of medical devices, and in particular to an intraocular pressure measuring device, a left-right eye identification method, and a storage medium.
近年来，由于各个方面的因素导致的眼科疾病和用眼不健康，导致越来越多的人患有近视、青光眼、眼底病变、白内障等各种疾病，大量的眼科检查已经成为常态。眼科检查需要区别左右眼，传统的方法是手动记录，这样容易产生记录错误，导致检验结果错误，影响诊断和治疗。In recent years, due to various factors, eye diseases and unhealthy eye use have led to more and more people suffering from myopia, glaucoma, fundus lesions, cataracts and other diseases. A large number of eye examinations have become the norm. Eye examinations need to distinguish between the left and right eyes. The traditional method is manual recording, which is prone to recording errors, resulting in incorrect test results and affecting diagnosis and treatment.
发明内容Summary of the invention
本申请提供的一种眼压测量装置，能够自动识别左右眼。The present application provides an intraocular pressure measuring device that can automatically identify the left and right eyes.
本申请第一方面的实施例提供了一种眼压测量装置，该眼压测量装置包括：The embodiment of the first aspect of the present application provides an intraocular pressure measuring device, which comprises:
主体基座，主体基座包括探针；A main body base, the main body base includes a probe;
发射器，发射器设置于主体基座上，发射器用于发射测试信号，测试信号被调整为朝向预设角度范围传播；A transmitter, the transmitter is arranged on the main body base, and the transmitter is used to transmit a test signal, and the test signal is adjusted to propagate toward a preset angle range;
至少一个接收器，接收器设置于主体基座上，接收器用于接收测试信号的反射信号；at least one receiver, the receiver is arranged on the main body base, and the receiver is used to receive a reflected signal of the test signal;
控制器，控制器分别与发射器、接收器连接，发射器和接收器位于探针的同侧；控制器用于根据反射信号的信号强度，确定当前测量的眼睛为左眼或右眼；或者，在测试信号携带编码的情况下，控制器用于根据反射信号携带的编码，确定当前测量的眼睛为左眼或右眼。A controller, the controller is connected to the transmitter and the receiver respectively, and the transmitter and the receiver are located on the same side of the probe; the controller is used to determine whether the eye currently measured is the left eye or the right eye according to the signal strength of the reflected signal; or, when the test signal carries a code, the controller is used to determine whether the eye currently measured is the left eye or the right eye according to the code carried by the reflected signal.
本申请第二方面的实施例提供了一种左右眼识别方法，方法应用于前述的眼压测量装置，眼压测量装置包括探针、发射器、第一接收器和第二接收器，方法包括：The embodiment of the second aspect of the present application provides a left-right eye recognition method, which is applied to the aforementioned intraocular pressure measurement device, the intraocular pressure measurement device includes a probe, a transmitter, a first receiver and a second receiver, and the method includes:
在探针与被测眼相对的情况下，控制发射器所发射的测试信号被调整为朝向预设角度范围传播，测试信号为第一测试信号或第二测试信号，第一测试信号未携带编码，第二测试信号具有初始编码值；When the probe is opposite to the eye to be tested, the test signal emitted by the control transmitter is adjusted to propagate toward a preset angle range, the test signal is a first test signal or a second test signal, the first test signal does not carry a code, and the second test signal has an initial code value;
控制第一接收器接收测试信号的第一反射信号，控制第二接收器接收测试信号的第二反射信号；Controlling the first receiver to receive a first reflected signal of the test signal, and controlling the second receiver to receive a second reflected signal of the test signal;
在发射器发射第一测试信号的情况下，比较第一反射信号的第一信号强度与第二反射信号的第二信号强度，或者根据第一反射信号的第一信号强度和第二反射信号的第二信号强度之间的差值与预设阈值比较，确定当前测量的眼睛为左眼或右眼；或者，When the transmitter transmits the first test signal, the first signal strength of the first reflected signal is compared with the second signal strength of the second reflected signal, or the difference between the first signal strength of the first reflected signal and the second signal strength of the second reflected signal is compared with a preset threshold value to determine whether the currently measured eye is the left eye or the right eye; or
在发射器发射第二测试信号的情况下，将初始编码值分别与第一反射信号的第一编码值和第二反射信号的第二编码值比较，确定当前测量的眼睛为左眼或右眼。When the transmitter transmits the second test signal, the initial coding value is compared with the first coding value of the first reflection signal and the second coding value of the second reflection signal to determine whether the currently measured eye is the left eye or the right eye.
本申请第三方面的实施例提供了一种左右眼识别方法，眼压测量装置包括控制器、发射器和接收器，方法包括：The embodiment of the third aspect of the present application provides a left-right eye identification method, wherein the intraocular pressure measurement device includes a controller, a transmitter and a receiver, and the method includes:
在探针与眼睛相对的情况下，控制发射器所发射的测试信号被调整或设置为朝向预设角度范围，测试信号为第一测试信号或第二测试信号，第一测试信号未携带编码，第二测试信号具有初始编码值；When the probe is opposite to the eye, the test signal emitted by the control transmitter is adjusted or set to be oriented toward a preset angle range, the test signal is a first test signal or a second test signal, the first test signal does not carry a code, and the second test signal has an initial code value;
通过接收器接收测试信号在照射到面部后和/或照射到环境后反射回的反射信号；receiving, by a receiver, a reflected signal of the test signal after the test signal is irradiated onto the face and/or the environment;
根据反射信号的信号强度或编码，确定当前测量的眼睛为左眼或右眼。According to the signal strength or encoding of the reflected signal, it is determined whether the eye currently being measured is the left eye or the right eye.
本申请第四方面的实施例提供了一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序指令，计算机程序指令被处理器执行时实现如第二方面、第三方面提供的左右眼识别方法。The embodiment of the fourth aspect of the present application provides a computer-readable storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the left and right eye recognition methods provided in the second and third aspects are implemented.
本申请第六方面的实施例提供了一种左右眼识别方法，方法应用于眼压测量设备，眼压测量设备包括测量部、发射器和接收器，方法包括：The embodiment of the sixth aspect of the present application provides a left-right eye recognition method, which is applied to an intraocular pressure measurement device, the intraocular pressure measurement device includes a measurement unit, a transmitter and a receiver, and the method includes:
在测量部与眼睛相对的情况下，通过发射器以预设角度发射测试信号，测试信号包括第一光信号或第二光信号，第一光信号未携带编码，第二光信号携带编码，预设角度为朝向第一眼所在方位的角度，第一眼为左眼和右眼中的一者，第二眼为左眼和右眼中的另一者；When the measuring part is opposite to the eye, a test signal is emitted at a preset angle by the transmitter, and the test signal includes a first light signal or a second optical signal, the first optical signal does not carry a code, the second optical signal carries a code, the preset angle is an angle toward the direction of the first eye, the first eye is one of the left eye and the right eye, and the second eye is the other of the left eye and the right eye;
通过接收器接收测试信号在照射到面部后和/或照射到环境后反射回的反射信号；receiving, by a receiver, a reflected signal of the test signal after the test signal is irradiated onto the face and/or the environment;
根据反射信号的信号强度或编码，确定当前测量的眼睛为左眼或右眼。According to the signal strength or encoding of the reflected signal, it is determined whether the eye currently being measured is the left eye or the right eye.
本申请第七方面的实施例提供了一种眼压测量装置，眼压测量装置包括：The embodiment of the seventh aspect of the present application provides an intraocular pressure measuring device, the intraocular pressure measuring device comprising:
主体基座；Main base;
发射器，发射器设置于主体基座上，发射器用于发射测试信号，发射器发射测试信号的发射角度可调；A transmitter, which is arranged on the main body base and is used to transmit a test signal, and the transmission angle of the test signal transmitted by the transmitter is adjustable;
第一接收器；a first receiver;
第二接收器，第一接收器和第二接收器设置于主体基座上，第一接收器和第二接收器沿第一方向分设于发射器的两端，第一接收器用于接收测试信号的第一反射信号，第二接收器用于接收测试信号的第二反射信号；A second receiver, the first receiver and the second receiver are arranged on the main body base, the first receiver and the second receiver are arranged at two ends of the transmitter along the first direction, the first receiver is used to receive a first reflected signal of the test signal, and the second receiver is used to receive a second reflected signal of the test signal;
控制器，控制器分别与发射器、第一接收器和第二接收器连接，其中：A controller is connected to the transmitter, the first receiver and the second receiver respectively, wherein:
控制器用于根据第一反射信号和第二反射信号的信号强度，确定当前测量的眼睛为左眼或右眼。The controller is used to determine whether the currently measured eye is the left eye or the right eye according to the signal strength of the first reflection signal and the second reflection signal.
在本申请实施例提供的眼压测量装置、左右眼识别方法和存储介质中，眼压测量装置包括主体基座、发射器、至少一个接收器和控制器。其中，发射器发射测试信号，由于接收器能够接收测试信号反射回来的反射信号，通过分析反射信号，由此能够自动识别出目前正在测量的眼睛是左眼还是右眼，提高左右眼识别的准确性和智能性。In the intraocular pressure measuring device, left-right eye identification method and storage medium provided in the embodiments of the present application, the intraocular pressure measuring device includes a main body base, a transmitter, at least one receiver and a controller. The transmitter transmits a test signal, and since the receiver can receive a reflected signal reflected by the test signal, by analyzing the reflected signal, it can automatically identify whether the eye currently being measured is the left eye or the right eye, thereby improving the accuracy and intelligence of left-right eye identification.
通过阅读以下参照附图对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显，其中，相同或相似的附图标记表示相同或相似的特征。Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.
图1是本申请第一部分的实施例提供的眼压测量装置的测量左眼的原理图；FIG1 is a schematic diagram of the intraocular pressure measuring device for measuring the left eye provided by the embodiment of the first part of the present application;
图2是本申请第一部分的实施例提供的眼压测量装置的结构示意图；FIG2 is a schematic diagram of the structure of an intraocular pressure measuring device provided in the embodiment of the first part of the present application;
图3是本申请第一部分的实施例的眼压测量装置的部分结构的剖视图；3 is a cross-sectional view of a partial structure of an intraocular pressure measuring device according to an embodiment of the first part of the present application;
图4是本申请第一部分的实施例提供的一种控制器的连接示意图；FIG4 is a connection diagram of a controller provided by an embodiment of the first part of the present application;
图5是本申请第一部分的实施例提供的一种第一反射信号和第二反射信号的波形图；FIG5 is a waveform diagram of a first reflection signal and a second reflection signal provided by an embodiment of the first part of the present application;
图6是本申请第一部分的实施例提供的另一种第一反射信号和第二反射信号的波形图；FIG6 is a waveform diagram of another first reflection signal and a second reflection signal provided by the embodiment of the first part of the present application;
图7是本申请第二部分的实施例提供眼压测量装置的结构示意图；7 is a schematic diagram of the structure of an intraocular pressure measurement device provided in an embodiment of the second part of the present application;
图8是本申请第二部分的实施例提供的眼压测量装置测量左眼的原理示意图；FIG8 is a schematic diagram showing the principle of measuring the left eye using the intraocular pressure measuring device provided in the embodiment of the second part of the present application;
图9是本申请第二部分的实施例提供的眼压测量装置测量右眼的原理示意图；9 is a schematic diagram showing the principle of measuring the right eye using the intraocular pressure measuring device provided in the embodiment of the second part of the present application;
图10是本申请实施例提供的一种左右眼识别装置的结构示意图；FIG10 is a schematic diagram of the structure of a left-right eye recognition device provided in an embodiment of the present application;
图11是本申请实施例提供的左右眼识别方法的流程示意图。FIG. 11 is a flow chart of a left-right eye recognition method provided in an embodiment of the present application.
附图标记说明：
X、第一方向；Z、第二方向；Y、第三方向；
1、主体基座；2、功能按键；3、接收器；3a、第一接收器；3b、第二接收器；4、发射器；5、
测试信号；6、反射信号；6a、第一反射信号；6b、第二反射信号；7a、鼻部；7b、左面颊；7c、右面颊；8、左眼；9、右眼；10、测量者头部；11、控制器；12、主体部；121、探针；122、容纳腔；123、探针套筒；124、线圈；125、线圈支架；50、突出件。Description of reference numerals:
X, first direction; Z, second direction; Y, third direction;
1. Main base; 2. Function buttons; 3. Receiver; 3a. First receiver; 3b. Second receiver; 4. Transmitter; 5.
Test signal; 6, reflection signal; 6a, first reflection signal; 6b, second reflection signal; 7a, nose; 7b, left cheek; 7c, right cheek; 8, left eye; 9, right eye; 10, measurer's head; 11, controller; 12, main body; 121, probe; 122, accommodating chamber; 123, probe sleeve; 124, coil; 125, coil bracket; 50, protrusion.
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of the specific details.
为了更好的理解本申请，下面结合图1至图11对本申请实施例的眼压测量装置、左右眼识别方法和存储介质进行详细描述。In order to better understand the present application, the intraocular pressure measurement device, left and right eye identification method and storage medium of the embodiment of the present application are described in detail below in conjunction with Figures 1 to 11.
本申请第一方面的实施例提供了眼压测量装置。如图1至图4所示，本申请第一方面的一些实施例提供的眼压测量装置，包括主体基座1、发射器4、至少一个接收器3和控制器11；主体基座1包括探针121，发射器4与接收器3均设置于主体基座1上，并且位于探针121的同侧；发射器4用于发射测试信号5，测试信号5被调整为朝向预设角度范围传播；接收器3用于接收测试信号5的反射信号，控制器11用于根据反射信号的信号强度，确定当前测量的眼睛为左眼或右眼；Embodiments of the first aspect of the present application provide an intraocular pressure measuring device. As shown in Figures 1 to 4, some embodiments of the first aspect of the present application provide an intraocular pressure measuring device, including a main body base 1, a transmitter 4, at least one receiver 3 and a controller 11; the main body base 1 includes a probe 121, and the transmitter 4 and the receiver 3 are both arranged on the main body base 1 and located on the same side of the probe 121; the transmitter 4 is used to transmit a test signal 5, and the test signal 5 is adjusted to propagate toward a preset angle range; the receiver 3 is used to receive a reflected signal of the test signal 5, and the controller 11 is used to determine whether the currently measured eye is a left eye or a right eye according to the signal strength of the reflected signal;
或，在测试信号携带编码的情况下，控制器11用于根据反射信号携带的编码，确定当前测量的眼睛为左眼或右眼。Or, in the case where the test signal carries a code, the controller 11 is used to determine the current measurement according to the code carried by the reflected signal. The eye is the left eye or the right eye.
在本申请第一方面的另一些实施例所提供的眼压测量装置中，如图7至图9所示，通过设置一个发射器4和一个接收器3，发射器4朝向预设角度范围，用于朝向预设角度范围发射测试信号，根据接收器3接收的来自该预设角度范围的反射信号的信号强度或反射信号携带的编码，确定当前测量的眼睛为左眼或右眼。在替代性实施例中，图7的发射器与接收器互换位置，此时发射器位于中间，发射器用于向全角度发射测试信号，接收器位于发射器的一侧，用于接收来自预设角度范围的测试信号的反射信号。In the intraocular pressure measuring device provided in other embodiments of the first aspect of the present application, as shown in Figures 7 to 9, a transmitter 4 and a receiver 3 are provided, and the transmitter 4 faces a preset angle range and is used to transmit a test signal toward the preset angle range, and determines whether the eye currently being measured is the left eye or the right eye according to the signal strength of the reflected signal from the preset angle range received by the receiver 3 or the code carried by the reflected signal. In an alternative embodiment, the transmitter and the receiver of Figure 7 are interchanged, and the transmitter is located in the middle at this time, and the transmitter is used to transmit the test signal to all angles, and the receiver is located on one side of the transmitter, and is used to receive the reflected signal of the test signal from the preset angle range.
第一部分：Part I:
在一些实施例中，如图1至图4所示，至少一个接收器3包括第一接收器3a和第二接收器3b，第一接收器3a和第二接收器3b设置于主体基座1上，第一接收器3a和第二接收器3b沿第一方向X分设于发射器4的两端，第一接收器3a、发射器4、第二接收器3b均位于探针121的同侧，发射器4发射的测试信号5被调整为朝向第一角度范围和朝向第二角度范围，第一接收器3a用于接收朝向第一角度范围发射的测试信号5的第一反射信号6a，第二接收器3b用于接收朝向第二角度范围发射的测试信号5的第二反射信号6b；控制器11分别与发射器4、第一接收器3a和第二接收器3b连接，控制器11用于根据第一反射信号6a和第二反射信号6b的信号强度，确定当前测量的眼睛为左眼或右眼。In some embodiments, as shown in Figures 1 to 4, at least one receiver 3 includes a first receiver 3a and a second receiver 3b, the first receiver 3a and the second receiver 3b are arranged on the main body base 1, the first receiver 3a and the second receiver 3b are arranged at both ends of the transmitter 4 along the first direction X, the first receiver 3a, the transmitter 4, and the second receiver 3b are all located on the same side of the probe 121, the test signal 5 emitted by the transmitter 4 is adjusted to be directed toward the first angle range and toward the second angle range, the first receiver 3a is used to receive the first reflected signal 6a of the test signal 5 emitted toward the first angle range, and the second receiver 3b is used to receive the second reflected signal 6b of the test signal 5 emitted toward the second angle range; the controller 11 is connected to the transmitter 4, the first receiver 3a and the second receiver 3b, respectively, and the controller 11 is used to determine whether the currently measured eye is the left eye or the right eye according to the signal strength of the first reflected signal 6a and the second reflected signal 6b.
可选地，第一接收器3a、发射器4、第二接收器3b沿第一方向X依次间隔设置。探针121可以沿第三方向Y移动，第一方向X和第三方向Y相交设置。在使用本申请提供的眼压测量装置时，第三方向Y可以是眼压测量装置到待测眼睛的方向。Optionally, the first receiver 3a, the transmitter 4, and the second receiver 3b are sequentially arranged at intervals along the first direction X. The probe 121 can move along the third direction Y, and the first direction X and the third direction Y are arranged to intersect. When using the intraocular pressure measurement device provided by the present application, the third direction Y can be the direction from the intraocular pressure measurement device to the eye to be measured.
可选地，在本申请实施例中，主体基座1作为眼压测量装置的主体结构，其具有良好的结构强度和耐磨性，主体基座1的设置方式有多种，例如，主体基座1可以使用一个基座平台来支撑其他组件，例如，主体基座1为眼压测量装置本体。具体而言，发射器4、第一接收器3a、第二接收器3b以及控制器11均可以直接固定设置在该基座平台上，该基座平台可以具有适当的重量和稳定性，以确保眼压测量装置的稳定性。发射器4、第一接收器3a、第二接收器3b位于探针121的同侧。本申请并不限制主体基座1的具体设置方式，只要能够在其上安装其他组件即可。Optionally, in an embodiment of the present application, the main body base 1 serves as the main structure of the intraocular pressure measuring device, which has good structural strength and wear resistance. There are many ways to set the main body base 1. For example, the main body base 1 can use a base platform to support other components. For example, the main body base 1 is the body of the intraocular pressure measuring device. Specifically, the transmitter 4, the first receiver 3a, the second receiver 3b and the controller 11 can all be directly fixed on the base platform, and the base platform can have appropriate weight and stability to ensure the stability of the intraocular pressure measuring device. The transmitter 4, the first receiver 3a, and the second receiver 3b are located on the same side of the probe 121. The present application does not limit the specific setting method of the main body base 1, as long as other components can be installed thereon.
可选地，发射器4所发出的测试信号5可以被设置为、调整为或者被引导朝向预设角度范围传播。在这种设置方式下，发射器4的发射传播角度范围是预先确定的，并且无法调整或改变。当然，发射器4也可以配备自动调节功能，可以根据不同的测量需求和不同的算法控制，通过内置电动机或驱动系统自动调整发射器4的发射角度。亦或者通过用户手动调整发射器4的发射角度，以适应不同的眼部结构。举例来说，本申请实施例中，如图2所示，发射器4背离探针121的一侧设有突出件50，发射器4的测试信号被引导分别朝向第一接收器3a与突出件50之间的第一角度范围、以及朝向第二接收器3b与突出件50之间的第二角度范围。预设角度范围可以包括第一角度范围和第二角度范围。Optionally, the test signal 5 emitted by the transmitter 4 can be set, adjusted or directed to propagate toward a preset angle range. In this setting, the transmission propagation angle range of the transmitter 4 is predetermined and cannot be adjusted or changed. Of course, the transmitter 4 can also be equipped with an automatic adjustment function, which can automatically adjust the transmission angle of the transmitter 4 through a built-in motor or drive system according to different measurement requirements and different algorithm controls. Or the user manually adjusts the transmission angle of the transmitter 4 to adapt to different eye structures. For example, in an embodiment of the present application, as shown in Figure 2, a protrusion 50 is provided on the side of the transmitter 4 away from the probe 121, and the test signal of the transmitter 4 is guided toward a first angle range between the first receiver 3a and the protrusion 50, and toward a second angle range between the second receiver 3b and the protrusion 50. The preset angle range may include a first angle range and a second angle range.
可选地，在一些可选地实施方式中，第一接收器3a和第二接收器3b可以均被设置为接收源自预设角度范围的测试信号5的反射信号；或者是被设置为具有多个固定或可调节的位置，通过在不同位置上放置接收器，可以获取多个反射信号，并综合利用这些信号进行更准确的测量，进一步提高眼压测量装置识别左右眼的准确率。举例来说，如图1和图2所示，第一接收器3a接收来自第一角度范围的测试信号的第一反射信号6a，第二接收器3b接收来自第二角度范围的测试信号的第二反射信号6b。Optionally, in some optional embodiments, the first receiver 3a and the second receiver 3b can both be configured to receive a reflection signal of a test signal 5 originating from a preset angle range; or can be configured to have multiple fixed or adjustable positions, and by placing receivers at different positions, multiple reflection signals can be obtained, and these signals can be used in combination to perform more accurate measurements, further improving the accuracy of the intraocular pressure measurement device in identifying the left and right eyes. For example, as shown in Figures 1 and 2, the first receiver 3a receives a first reflection signal 6a of a test signal from a first angle range, and the second receiver 3b receives a second reflection signal 6b of a test signal from a second angle range.
可选地，控制器11分别和发射器4、第一接收器3a和第二接收器3b之间的连接方式可以是通信连接或电连接的方式。Optionally, the connection between the controller 11 and the transmitter 4, the first receiver 3a and the second receiver 3b may be a communication connection or an electrical connection.
如图1所示，在本申请实施例中，第一接收器3a和第二接收器3b用于分别检测测试信号5从受检查者面部或者脸外反射回的红外光、可见光、或其他不可见光，以使控制器11根据接收到的第一反射信号6a和第二反射信号6b的特性不同，从而判断当前执行测量操作的是左眼或右眼。具体而言，控制器11可以通过分别测量第一反射信号6a和第二反射信号6b的强度、频率、相位等参数以提取有关反射信号的信息，分析测试信号5的反射情况，并以此来识别当前测量的眼睛为左眼还是右眼。As shown in FIG1 , in the embodiment of the present application, the first receiver 3a and the second receiver 3b are used to respectively detect infrared light, visible light, or other invisible light reflected from the face or outside the face of the person being examined by the test signal 5, so that the controller 11 can judge whether the left eye or the right eye is currently performing the measurement operation according to the different characteristics of the received first reflection signal 6a and the second reflection signal 6b. Specifically, the controller 11 can extract information about the reflection signal by measuring the intensity, frequency, phase and other parameters of the first reflection signal 6a and the second reflection signal 6b respectively, analyze the reflection of the test signal 5, and thereby identify whether the eye currently being measured is the left eye or the right eye.
例如，当眼压测量装置被放置于测量眼的正前方，且探针121对齐居中于被测眼睛的角膜中心，此时则说明眼压测量装置对准操作完成，可以进行下一步测量，此时开始进行左右眼的识别。如图1和图2所示，假设被测眼是第一眼9(左眼)，发射器4发射出的测试信号5被引导或者调整为按照一定的角度朝向左眼9的左侧、右侧两个方位。朝向左侧的第一角度范围的测试信号主要从人脸面部旁侧(例如耳畔)射出，照射到人脸的后方。朝向右侧的第二角度范围的测试信号射向人脸面部，被测量者鼻部7a、测量者左面颊7b、测量者右面颊7c遮挡而反射，两个预设角度范围的测试信号产生的反射光线分别由第一接收器3a和第二接收器3b接收，控制器11能够根据所接收的反射光的特征和强度的不同来判断测量的是左眼还是右眼。本领域技术人员可以理解，测量第二眼8(右眼)的原理类似。For example, when the intraocular pressure measuring device is placed in front of the measured eye, and the probe 121 is aligned and centered on the cornea center of the measured eye, it means that the alignment operation of the intraocular pressure measuring device is completed, and the next step of measurement can be carried out, and the identification of the left and right eyes begins. As shown in Figures 1 and 2, assuming that the measured eye is the first eye 9 (left eye), the test signal 5 emitted by the transmitter 4 is guided or adjusted to At a certain angle, the test signal is directed to the left and right sides of the left eye 9. The test signal of the first angle range directed to the left side is mainly emitted from the side of the face (such as the ear) and illuminates the back of the face. The test signal of the second angle range directed to the right side is emitted to the face of the person, and is blocked and reflected by the nose 7a, the left cheek 7b and the right cheek 7c of the person being measured. The reflected light generated by the test signals of the two preset angle ranges is received by the first receiver 3a and the second receiver 3b respectively. The controller 11 can determine whether the left eye or the right eye is being measured based on the characteristics and intensity of the received reflected light. Those skilled in the art can understand that the principle of measuring the second eye 8 (right eye) is similar.
在本申请实施例中，发射器4发射的测试信号5被调整为朝向预设角度范围，预设角度范围是为了能够适应人脸面部的形状特征，使得测试信号5可以在测量不同的眼睛时，拥有不同的反射效果，从而能够根据第一反射信号6a和第二反射信号6b之间的不同的特性判断当前测量的眼睛为左眼还是右眼。在本申请实施例中，预设角度范围的具体数值可以根据人脸脸型进行调整。本申请并不限制预设角度范围的确定方式，只要能够实现在测量不同的眼睛时，测试信号5具有不同的反射效果即可。In the embodiment of the present application, the test signal 5 emitted by the transmitter 4 is adjusted to face the preset angle range. The preset angle range is to adapt to the shape characteristics of the human face, so that the test signal 5 can have different reflection effects when measuring different eyes, so that it can be judged whether the currently measured eye is the left eye or the right eye according to the different characteristics between the first reflection signal 6a and the second reflection signal 6b. In the embodiment of the present application, the specific value of the preset angle range can be adjusted according to the face shape of the human face. The present application does not limit the method for determining the preset angle range, as long as it can be achieved that the test signal 5 has different reflection effects when measuring different eyes.
根据上述描述可知，接收器3接收到的第一反射信号6a和第二反射信号6b即为测试信号5在照射到人脸面部后或者是在照射到环境中反射回来的反射信号，两者的信号强度是存在差异的。According to the above description, the first reflection signal 6a and the second reflection signal 6b received by the receiver 3 are the reflection signals of the test signal 5 after being irradiated on the human face or reflected from the environment, and there is a difference in the signal strengths of the two.
在另一些实施例中，如果测试信号中包含了编码信息，可以通过解码分析来实现左右眼识别。根据编码的特征，比如特定的频率、时序、模式或编码值，将接收到的反射信号与测试信号的编码进行比较，以确定当前测量的眼睛。例如，在本申请实施例中，可以根据测试信号5自身的标识信息确定第一接收器3a和第二接收器3b接收到的反射信号是否属于测试信号5的反射信号。具体而言，标识信息可以是专属于测试信号5的编码符号，通过读取该编码符号可以识别出第一接收器3a和第二接收器3b接收到的反射信号是否属于测试信号5反射回的信号。In other embodiments, if the test signal contains coding information, left and right eye recognition can be achieved through decoding analysis. According to the characteristics of the coding, such as a specific frequency, timing, mode or coding value, the received reflection signal is compared with the coding of the test signal to determine the eye currently being measured. For example, in an embodiment of the present application, it can be determined whether the reflection signal received by the first receiver 3a and the second receiver 3b belongs to the reflection signal of the test signal 5 based on the identification information of the test signal 5 itself. Specifically, the identification information can be a coding symbol dedicated to the test signal 5, and by reading the coding symbol, it can be identified whether the reflection signal received by the first receiver 3a and the second receiver 3b belongs to the signal reflected back by the test signal 5.
可选地，可以设置接收器的参数，包括增益、灵敏度等，确保接收器能够接收到从面部反射回来的反射信号，并能够测量到反射信号的信号强度。其中，增益、灵敏度等参数的设置将影响接收器对反射信号的接收和解析能力。Optionally, the receiver parameters, including gain, sensitivity, etc., can be set to ensure that the receiver can receive the reflected signal reflected from the face and measure the signal strength of the reflected signal. The setting of parameters such as gain and sensitivity will affect the receiver's ability to receive and analyze the reflected signal.
综上，在上述实施例中，眼压测量装置包括主体基座1、发射器4、第一接收器3a、第二接收器3b和控制器11。其中，发射器4发射的测试信号5被调整为朝向预设角度范围，由于第一接收器3a和第二接收器3b分设于该发射器4的两端，从而使得第一接收器3a和第二接收器3b能够分别在不同的位置接收到不同角度范围的测试信号5反射回的第一反射信号6a和第二反射信号6b，进而使得控制器11能够根据第一反射信号6a和第二反射信号6b之间的差异，确定当前测量的眼睛为左眼还是右眼，从而使得眼压测量装置能够自动识别左右眼，通过在不同的位置分别设置第一接收器3a和第二接收器3b，提高眼压测量装置自动识别左右眼的可靠性和准确率。In summary, in the above embodiment, the intraocular pressure measuring device includes a main body base 1, a transmitter 4, a first receiver 3a, a second receiver 3b and a controller 11. Among them, the test signal 5 emitted by the transmitter 4 is adjusted to face the preset angle range. Since the first receiver 3a and the second receiver 3b are respectively arranged at the two ends of the transmitter 4, the first receiver 3a and the second receiver 3b can respectively receive the first reflection signal 6a and the second reflection signal 6b reflected back by the test signal 5 of different angle ranges at different positions, so that the controller 11 can determine whether the currently measured eye is the left eye or the right eye according to the difference between the first reflection signal 6a and the second reflection signal 6b, so that the intraocular pressure measuring device can automatically identify the left and right eyes. By respectively arranging the first receiver 3a and the second receiver 3b at different positions, the reliability and accuracy of the automatic identification of the left and right eyes by the intraocular pressure measuring device are improved.
除上述外，本申请第一部分的实施例的眼压测量装置还包括以下特征。In addition to the above, the intraocular pressure measuring device of the embodiment of the first part of the present application also includes the following features.
【主体部】【Main body】
如图3所示，主体基座1包括主体部12，主体部12包括沿第三方向Y延伸的探针套筒123，探针套筒123具有容纳腔122，探针121活动设置于容纳腔122内，探针121的部分沿第三方向Y伸出探针套筒123设置，探针121用于测量眼睛的眼压。As shown in Figure 3, the main base 1 includes a main body 12, and the main body 12 includes a probe sleeve 123 extending along a third direction Y. The probe sleeve 123 has a accommodating cavity 122. The probe 121 is movably arranged in the accommodating cavity 122. A portion of the probe 121 extends out of the probe sleeve 123 along the third direction Y. The probe 121 is used to measure the intraocular pressure of the eye.
可选地，容纳腔122是一个空腔或空间，其形状可以根据探针121的尺寸和形状来设计，容纳腔122可以是圆柱形、圆锥形或其他形状，本申请并不限制容纳腔122的具体形状，只要能够收容探针121即可。Optionally, the accommodating cavity 122 is a cavity or space, and its shape can be designed according to the size and shape of the probe 121. The accommodating cavity 122 can be cylindrical, conical or other shapes. The present application does not limit the specific shape of the accommodating cavity 122 as long as it can accommodate the probe 121.
主体部12设置有开口，具体来说探针套筒123设有开口，当要测量眼压时探针121可以从开口伸出，当测量完毕时，探针121收容在探针套筒123形成的容纳腔122内。探针121可以设置成与眼睛接触的合适形状，以便准确测量眼压，例如锥形、圆柱形、椭圆形等。探针121靠近被测眼球的一端由弹性材料制备而成，对眼睛无伤害。The main body 12 is provided with an opening, specifically, the probe sleeve 123 is provided with an opening, and the probe 121 can be extended from the opening when the intraocular pressure is to be measured, and when the measurement is completed, the probe 121 is accommodated in the accommodating cavity 122 formed by the probe sleeve 123. The probe 121 can be set to a suitable shape that contacts the eye so as to accurately measure the intraocular pressure, such as a cone, a cylinder, an ellipse, etc. The end of the probe 121 close to the eyeball to be measured is made of elastic material, which is harmless to the eye.
主体部12还包括线圈支架125和线圈124，线圈支架125套设在探针套筒123外部，线圈124绕制在线圈支架125上，并沿第三方向Y延伸。线圈124用于驱动探针121沿第三方向Y移动，以测量用户眼睛的眼压。The main body 12 further includes a coil support 125 and a coil 124 . The coil support 125 is sleeved outside the probe sleeve 123 . The coil 124 is wound on the coil support 125 and extends along the third direction Y. The coil 124 is used to drive the probe 121 to move along the third direction Y to measure the intraocular pressure of the user's eye.
在这些可选地实施例中，通过将探针121设置在容纳腔122内，可以提供更稳定的测量环境。容纳腔122可以减少外部环境的干扰因素对探针121的影响，如风、震动或光线变化。这有助于确保探针121在测量过程中的稳定性和准确性。In these optional embodiments, a more stable measurement environment can be provided by arranging the probe 121 in the accommodating chamber 122. The accommodating chamber 122 can reduce the influence of interference factors in the external environment on the probe 121, such as wind, vibration or light changes. This helps to ensure the stability and accuracy of the probe 121 during the measurement process.
【功能按键】【Function buttons】
眼压测量装置还包括功能按键2，功能按键2设置于主体基座1，功能按键2用于触发发射器4发射测试信号5。The intraocular pressure measuring device also includes a function button 2, which is arranged on the main base 1 and is used to trigger the transmitter. 4 Transmit test signal 5.
可选地，主体部12用于安装并驱动探针121，发射器4、第一接收器3a和第二接收器3b均安装在主体基座1上，位于主体部12的同侧。主体部12是眼压测量装置的核心组件，对探针121提供稳定的支撑和定位功能。Optionally, the main body 12 is used to install and drive the probe 121, and the transmitter 4, the first receiver 3a and the second receiver 3b are all installed on the main body base 1, located on the same side of the main body 12. The main body 12 is the core component of the intraocular pressure measurement device, providing stable support and positioning functions for the probe 121.
主体基座1可以通过接口与发射器4连接，以确保发射器4的稳定安装。例如，主体基座1内部设置硬质电路板，主体部12、发射器4、第一接收器3a、第二接收器3b均固定或可拆卸连接在硬质电路板上。可选地，发射器4可以通过螺丝、固定夹具或焊接等方式固定在主体基座1上，具体例如固定在电路板上。提供牢固的连接，确保发射器4在使用过程中的稳定性。The main body base 1 can be connected to the transmitter 4 through an interface to ensure stable installation of the transmitter 4. For example, a hard circuit board is arranged inside the main body base 1, and the main body 12, the transmitter 4, the first receiver 3a, and the second receiver 3b are all fixedly or detachably connected to the hard circuit board. Optionally, the transmitter 4 can be fixed to the main body base 1 by screws, fixing fixtures or welding, for example, fixed to the circuit board. Provide a firm connection to ensure the stability of the transmitter 4 during use.
功能按键2的设置方式有多种，例如功能按键2可以是物理按钮，设置在眼压测量装置的主体基座1外表面，用户通过按下相应的按钮来触发发射器4发射测试信号5。可选地，功能按键2还可以是触摸感应式按键，设置在主体基座1的外表面，用户只需轻触按键表面，即可触发发射器4发射测试信号5，提高功能按键2的灵敏性。在其他实施方式中，功能按键2还可以是虚拟按键，通过触摸屏幕或显示面板上的图形界面来实现。功能按键2还可以通过语音控制方式来触发，通过集成语音识别技术，用户通过使用预定义的口令或指令来触发发射器4发射测试信号5。这种设置方式允许用户无需触摸装置，通过语音指令实现操作。There are many ways to set the function button 2. For example, the function button 2 can be a physical button, which is arranged on the outer surface of the main body base 1 of the intraocular pressure measuring device. The user triggers the transmitter 4 to transmit the test signal 5 by pressing the corresponding button. Optionally, the function button 2 can also be a touch-sensitive button, which is arranged on the outer surface of the main body base 1. The user only needs to touch the button surface to trigger the transmitter 4 to transmit the test signal 5, thereby improving the sensitivity of the function button 2. In other embodiments, the function button 2 can also be a virtual button, which is implemented by touching the graphical interface on the screen or display panel. The function button 2 can also be triggered by voice control. By integrating voice recognition technology, the user triggers the transmitter 4 to transmit the test signal 5 by using a predefined password or instruction. This setting method allows the user to operate through voice commands without touching the device.
功能按键2对发射器4发射测试信号5的触发可以是直接触发，也可以是间接触发，比如，功能按键2按下后，先进行眼压的测量，测量完成后再进行发射器4的发射，自动完成左右眼的检测。The triggering of the function button 2 to the transmitter 4 to transmit the test signal 5 can be direct or indirect. For example, after the function button 2 is pressed, the intraocular pressure is measured first, and then the transmitter 4 is emitted after the measurement is completed, and the detection of the left and right eyes is automatically completed.
【调制件】【Modulation parts】
测试过程中，第一接收器3a和第二接收器3b在接收到第一反射信号6a和第二反射信号6b时，可能同时会接收到环境光，这一部分环境光通常是直流信号，可以直接通过滤波的方式过滤掉，例如可以使用高通滤波器或者低通滤波器进行电子过滤，以过滤掉直流信号。但是在实际测量环境中还会存在一些调制光，这一部分光无法通过上述直流信号滤波的方式过滤掉，这一部分调制光往往具有与测试信号5不同的频率，为此，本申请一些实施例中通过设置的方式对调制光进行过滤。During the test, the first receiver 3a and the second receiver 3b may receive ambient light at the same time when receiving the first reflected signal 6a and the second reflected signal 6b. This part of ambient light is usually a DC signal and can be directly filtered out by filtering. For example, a high-pass filter or a low-pass filter can be used for electronic filtering to filter out the DC signal. However, in the actual measurement environment, there will still be some modulated light, which cannot be filtered out by the above-mentioned DC signal filtering method. This part of modulated light often has a different frequency from the test signal 5. For this reason, in some embodiments of the present application, the modulated light is filtered by setting.
具体来说，在一些可选地实施例中，眼压测量装置还包括调制件(图未示)，调制件设置于接收器3上，调制件用于过滤反射信号中的调制光。Specifically, in some optional embodiments, the intraocular pressure measuring device further includes a modulator (not shown), which is disposed on the receiver 3 and is used to filter the modulated light in the reflected signal.
例如，在一些实施例中，调制件分别设置于第一接收器3a和第二接收器3b上，调制件用于过滤第一反射信号6a和第二反射信号6b中的调制光。For example, in some embodiments, the modulators are disposed on the first receiver 3a and the second receiver 3b, respectively, and the modulators are used to filter the modulated light in the first reflection signal 6a and the second reflection signal 6b.
可选地，调制件可以嵌入到第一接收器3a和第二接收器3b中的特定位置上，例如将调制件直接集成到接收器内部，使其与接收器紧密结合，并实现光信号的调制滤波功能。调制件还可以通过夹持机构或支架夹持到第一接收器3a和第二接收器3b上。或者可以使用适当的粘合剂或粘性材料固定在第一接收器3a和第二接收器3b上。Optionally, the modulator can be embedded in a specific position of the first receiver 3a and the second receiver 3b, for example, the modulator can be directly integrated into the receiver so that it is closely combined with the receiver and realizes the modulation and filtering function of the optical signal. The modulator can also be clamped to the first receiver 3a and the second receiver 3b by a clamping mechanism or a bracket. Alternatively, it can be fixed to the first receiver 3a and the second receiver 3b using a suitable adhesive or viscous material.
具体而言，调制件可以是光学滤波器，光学滤波器通过按频率选择性地通过或阻挡特定频率的信号来实现信号的过滤。例如，可以使用带通滤波器通过期望频率的光，并使用阻挡滤波器阻挡频率不同的光。更具体地，还可以使用干涉滤波器、棱镜滤波器或折射滤波器实现光信号过滤。Specifically, the modulator can be an optical filter, which filters the signal by selectively passing or blocking the signal of a specific frequency according to the frequency. For example, a bandpass filter can be used to pass the light of the desired frequency, and a blocking filter can be used to block the light of different frequencies. More specifically, an interference filter, a prism filter or a refraction filter can also be used to filter the optical signal.
【调整状态】[Adjustment status]
在一些可选地实施例中，眼压测量装置具有调整状态，即第一接收器3a和第二接收器3b包括调整状态；在调整状态，接收器3采集被测人脸面部所在环境的初始环境光在多个位置下的多个环境光，即在设置有第一接收器3a和第二接收器3b的情况下，第一接收器3a和第二接收器3b均采集被测人脸面部所在环境的初始环境光在多个位置下的多个环境光，以使控制器11根据多个环境光的环境光参数确定信号基准强度。In some optional embodiments, the intraocular pressure measuring device has an adjustment state, that is, the first receiver 3a and the second receiver 3b include an adjustment state; in the adjustment state, the receiver 3 collects multiple ambient lights of the initial ambient light of the environment where the face of the person being measured is located at multiple positions, that is, when the first receiver 3a and the second receiver 3b are provided, the first receiver 3a and the second receiver 3b both collect multiple ambient lights of the initial ambient light of the environment where the face of the person being measured is located at multiple positions, so that the controller 11 determines the signal reference intensity according to the ambient light parameters of the multiple ambient lights.
可选地，在本申请实施例中，调整状态即为眼压测量装置进行测量之前的调整阶段。Optionally, in the embodiment of the present application, the adjustment state is the adjustment stage before the intraocular pressure measurement device performs measurement.
环境光具体可以是当前测量环境的环境光，具体而言，环境强度可以是检测当前环境光的光线强度。随后通过对环境光的特性进行分析，得到信号基准强度。需要说明的是，环境光中可能还会存在干扰发射器4发射测试信号5的杂乱电波等干扰信号，因此在确定信号基准强度之前，可以对这些干扰信号进行过滤，以提高信号基准强度的可靠性，进一步提高左右眼识别的准确性，其中，对干扰源的过滤方式可参照上述调制件的描述，本申请在此不再赘述。The ambient light may specifically be the ambient light of the current measurement environment, and specifically, the ambient intensity may be the light intensity of the current ambient light. The signal reference intensity is then obtained by analyzing the characteristics of the ambient light. It should be noted that there may be interference signals such as cluttered radio waves that interfere with the transmitter 4 transmitting the test signal 5 in the ambient light, so before determining the signal reference intensity, these interference signals may be filtered to improve the reliability of the signal reference intensity and further improve the accuracy of left and right eye recognition, wherein the filtering method for the interference source can refer to the description of the above-mentioned modulation element, and this application will not repeat them here.
通过布置第一接收器3a和第二接收器3b，用以测量和记录每个位置下的环境光参数。这些参数可以包括光线强度、干扰信号的信号强度等。随后将所获得的环境光参数存储或记录下来，以供后续使用。在这些可选地实施例中，采集被测人脸面部所在环境的初始环境光的多个环境光参数，提供了对环境光的全面了解，从而全面了解人脸面部所在环境的光照情况，提高测量的准确性和可靠性。The first receiver 3a and the second receiver 3b are arranged to measure and record the ambient light parameters at each position. These parameters may include light intensity, signal strength of interference signals, etc. The obtained ambient light parameters are then stored or recorded for subsequent use. In these optional embodiments, multiple ambient light parameters of the initial ambient light of the environment where the face of the person being measured is located are collected. It provides a comprehensive understanding of the ambient light, thereby fully understanding the lighting conditions of the environment where the face is located, and improving the accuracy and reliability of the measurement.
进一步地，在本申请实施例中，可以将收集到的环境光参数进行整理和分析。例如可以计算光线强度和干扰信号的平均值、方差或其他统计指标，以获得对环境光照条件和干扰水平的综合评估。根据分析的结果和预设的算法或规则，确定信号基准强度。例如可以使用线性拟合、曲线拟合、灰度校准等方法来确定信号基准强度。随后可以在不同的环境条件下进行测试，比较测量结果与预期结果，以验证信号基准强度的准确性和稳定性。Furthermore, in an embodiment of the present application, the collected ambient light parameters can be sorted and analyzed. For example, the mean value, variance or other statistical indicators of the light intensity and the interference signal can be calculated to obtain a comprehensive evaluation of the ambient light conditions and the interference level. According to the results of the analysis and the preset algorithm or rule, the signal reference strength is determined. For example, linear fitting, curve fitting, grayscale calibration and other methods can be used to determine the signal reference strength. Subsequently, tests can be performed under different environmental conditions, and the measurement results can be compared with the expected results to verify the accuracy and stability of the signal reference strength.
在这些可选的实施例中，在第一接收器3a和第二接收器3b的调整阶段，通过分析多个环境光参数，综合考虑光线强度、干扰信号等多种环境因素对测量的影响，从而确定适合当前环境的信号基准强度，提高眼压测量装置测量的一致性和可靠性。In these optional embodiments, during the adjustment stage of the first receiver 3a and the second receiver 3b, multiple ambient light parameters are analyzed and the effects of various environmental factors such as light intensity and interference signals on the measurement are comprehensively considered to determine the signal reference strength suitable for the current environment, thereby improving the consistency and reliability of the measurement of the intraocular pressure measurement device.
在上述调整状态，控制器11用于根据信号基准强度确定测试信号5的发射信号强度，并控制发射器4以发射信号强度发射测试信号5。In the above adjustment state, the controller 11 is used to determine the transmission signal strength of the test signal 5 according to the signal reference strength, and control the transmitter 4 to transmit the test signal 5 with the transmission signal strength.
在本申请实施例中，如图4所示，控制器11是负责控制整个眼压测量装置的中枢部件。该控制器11可以由微处理器或嵌入式系统组成，具备信号处理和控制功能。发射器4用于发射测试信号5，可以由光源、发射光学元件和发射电路组成。第一接收器3a和第二接收器3b分别是用于接收测试信号5的第一反射信号6a和第二反射信号6b的感光元件，具备光电转换功能，将接收到的光信号转化为电信号。在位于调整状态下，控制器11可以基于信号基准强度进行计算，并生成相应的控制信号，并将该控制信号通过电路或通信线路传输到发射器4，用于调整发射器4的发射电流、功率或脉冲宽度等参数，以实现所需的发射信号强度。In an embodiment of the present application, as shown in FIG4 , the controller 11 is a central component responsible for controlling the entire intraocular pressure measuring device. The controller 11 may be composed of a microprocessor or an embedded system, and may have signal processing and control functions. The transmitter 4 is used to transmit a test signal 5, and may be composed of a light source, an emitting optical element, and a transmitting circuit. The first receiver 3a and the second receiver 3b are photosensitive elements for receiving the first reflected signal 6a and the second reflected signal 6b of the test signal 5, respectively, and may have a photoelectric conversion function to convert the received optical signal into an electrical signal. When in the adjustment state, the controller 11 may calculate based on the signal reference strength, and generate a corresponding control signal, and transmit the control signal to the transmitter 4 through a circuit or a communication line, for adjusting the parameters such as the transmitting current, power, or pulse width of the transmitter 4 to achieve the desired transmission signal strength.
例如，当测量环境较暗时，此时需要降低发射信号强度，由此保证测量能够正确进行，保证测量的稳定性；当测量环境较亮时，则需要增强发射信号强度，以防止环境光太强，导致测量不准确，这种随测量环境变化调整发射信号强度的设置，进一步增强了测量的稳定性。For example, when the measurement environment is dark, it is necessary to reduce the transmission signal strength to ensure that the measurement can be carried out correctly and to ensure the stability of the measurement; when the measurement environment is bright, it is necessary to increase the transmission signal strength to prevent the ambient light from being too strong, resulting in inaccurate measurement. This setting of adjusting the transmission signal strength as the measurement environment changes further enhances the stability of the measurement.
可选地，在本申请实施例中，为了提高检测时的抗干扰能力，可以在发射器4上设置一个过滤器，该过滤器可以对发射器4发射的测试信号5进行脉冲宽度调制，增加眼压测量装置测量的稳定性。Optionally, in an embodiment of the present application, in order to improve the anti-interference capability during detection, a filter may be provided on the transmitter 4, which may perform pulse width modulation on the test signal 5 emitted by the transmitter 4, thereby increasing the stability of the measurement of the intraocular pressure measuring device.
在这些可选的实施例中，通过根据信号基准强度调整发射信号强度，可以使测试信号5在不同环境条件下达到合适的强度，以确保可靠的测量结果。In these optional embodiments, by adjusting the transmission signal strength according to the signal reference strength, the test signal 5 can reach a suitable strength under different environmental conditions to ensure reliable measurement results.
在一实施例中，眼压测量装置还包括修正件，修正件设置于接收器3上，即在设置有第一接收器3a和第二接收器3b的情况下，修正件分别设置于第一接收器3a和第二接收器3b上，修正件用于对第一反射信号6a和第二反射信号6b的信号强度进行修正。In one embodiment, the intraocular pressure measuring device also includes a correction component, which is arranged on the receiver 3, that is, when a first receiver 3a and a second receiver 3b are provided, the correction component is respectively arranged on the first receiver 3a and the second receiver 3b, and the correction component is used to correct the signal strength of the first reflection signal 6a and the second reflection signal 6b.
可选地，修正件分别设置在第一接收器3a和第二接收器3b上，以便对第一接收器3a和第二接收器3b接收到的光信号进行修正。修正件可以是透明的或半透明的光学元件，如滤光片、衰减器、反射镜等。具体形状可以与接收器的感光区域相匹配，以确保修正件能够准确地修正第一接收器3a和第二接收器3b接收到第一反射信号6a和第二反射信号6b。修正件可以使用特定的光学材料，具有适当的光学特性，以实现所需的信号修正效果。修正件还可以使用夹持机构、粘合剂或其他适当的固定方式固定在第一接收器3a和第二接收器3b上。确保修正件与接收器的稳定连接，并对光信号进行准确的修正。Optionally, the correction component is respectively arranged on the first receiver 3a and the second receiver 3b so as to correct the optical signals received by the first receiver 3a and the second receiver 3b. The correction component can be a transparent or translucent optical element, such as a filter, an attenuator, a reflector, etc. The specific shape can match the photosensitive area of the receiver to ensure that the correction component can accurately correct the first reflection signal 6a and the second reflection signal 6b received by the first receiver 3a and the second receiver 3b. The correction component can use specific optical materials with appropriate optical properties to achieve the desired signal correction effect. The correction component can also be fixed to the first receiver 3a and the second receiver 3b using a clamping mechanism, an adhesive or other appropriate fixing methods. Ensure the stable connection between the correction component and the receiver and accurately correct the optical signal.
可选地，在本申请一种实施方式中，可以首先在预设条件下，测量并记录第一反射信号6a和第二反射信号6b的信号强度，作为预设的信号基准强度。随后控制器11使用第一接收器3a和第二接收器3b接收到来自被测人脸面部反射回的第一反射信号6a和第二反射信号6b。通过比较接收到的第一反射信号6a和第二反射信号6b的信号强度分别与信号基准强度的差异，计算修正值。随后将接收到的第一反射信号6a和第二反射信号6b分别与修正值相加或相减，得到修正后的第一反射信号6a和修正后的第二反射信号6b。修正的目的是校正环境因素对反射信号的影响，以提高测量结果的准确性和稳定性。Optionally, in one embodiment of the present application, the signal strength of the first reflection signal 6a and the second reflection signal 6b can be first measured and recorded under preset conditions as a preset signal reference strength. The controller 11 then uses the first receiver 3a and the second receiver 3b to receive the first reflection signal 6a and the second reflection signal 6b reflected from the face of the person being measured. By comparing the differences between the signal strengths of the received first reflection signal 6a and the second reflection signal 6b and the signal reference strength, a correction value is calculated. The received first reflection signal 6a and the second reflection signal 6b are then added or subtracted from the correction value to obtain a corrected first reflection signal 6a and a corrected second reflection signal 6b. The purpose of the correction is to correct the influence of environmental factors on the reflection signal to improve the accuracy and stability of the measurement results.
可选地，在本申请另一种可行的实施方式中，眼压测量装置在开始工作前，会进入调整状态，控制器11会首先对第一接收器3a和第二接收器3b采集到的环境光特性进行分析(包含但不限于强度、干扰源等)，得到初始环境光的环境光参数，作为后续测量的参考基准值。该参考基准的作用在于，(1)当发射器4发射的测试信号5照射面部，并在面部反射之后，可以修正正常测量时第一接收器3a和第二接收器3b接收到的第一反射信号6a和第二反射信号6b的信号强度，得到信号增量；(2)可以实时的根据环境光特性来调整发射器4的发射强度，使第一接收器3a和第二接收器3b接收到的第一反射信号6a和第二反射信号6b的信号增量趋于稳定，便于稳定测量。Optionally, in another feasible implementation of the present application, the intraocular pressure measuring device will enter an adjustment state before starting to work, and the controller 11 will first analyze the ambient light characteristics collected by the first receiver 3a and the second receiver 3b (including but not limited to intensity, interference source, etc.), and obtain the ambient light parameters of the initial ambient light as a reference baseline value for subsequent measurements. The role of this reference baseline is that (1) when the test signal 5 emitted by the transmitter 4 illuminates the face and after being reflected on the face, the signal strength of the first reflected signal 6a and the second reflected signal 6b received by the first receiver 3a and the second receiver 3b during normal measurement can be corrected to obtain a signal increment; (2) the emission intensity of the transmitter 4 can be adjusted in real time according to the ambient light characteristics, so that the first receiver 3a and the second receiver 3b can be adjusted in real time according to the ambient light characteristics. The signal increments of the first reflected signal 6a and the second reflected signal 6b received by the receiver 3b tend to be stable, which facilitates stable measurement.
【第一测量状态】【First measurement state】
在一实施例中，眼压测量装置具有第一测量状态，即发射器4还包括第一测量状态，在第一测量状态，发射器4发射第一测试信号，以使第一接收器3a接收第一测试信号的第一反射信号6a，第二接收器3b接收第一测试信号的第二反射信号6b；在第一测量状态，控制器11用于根据第一反射信号6a的第一信号强度和第二反射信号6b的第二信号强度之间的差值，例如在某些实施例中，控制器11用于将差值与预设阈值比较，确定当前测量的眼睛为左眼或右眼。In one embodiment, the intraocular pressure measuring device has a first measuring state, that is, the transmitter 4 also includes a first measuring state. In the first measuring state, the transmitter 4 transmits a first test signal so that the first receiver 3a receives the first reflected signal 6a of the first test signal, and the second receiver 3b receives the second reflected signal 6b of the first test signal; in the first measuring state, the controller 11 is used to determine whether the currently measured eye is the left eye or the right eye based on the difference between the first signal strength of the first reflected signal 6a and the second signal strength of the second reflected signal 6b. For example, in some embodiments, the controller 11 is used to compare the difference with a preset threshold value.
可选地，在本申请实施例中，第一测试信号为第一光信号，第一测试信号是可见光线，例如波长范围在0.77～0.39微米之间的光线。在其他实施例中，第一测试信号是红外光线，例如波长范围为0.76-1000微米的红外波段的电磁波。Optionally, in an embodiment of the present application, the first test signal is a first optical signal, and the first test signal is a visible light, such as a light with a wavelength range of 0.77 to 0.39 microns. In other embodiments, the first test signal is an infrared light, such as an electromagnetic wave in the infrared band with a wavelength range of 0.76-1000 microns.
可选地，在发射器4位于第一测量状态下，对眼压测量装置进行左右眼识别的具体过程进行描述，第一接收器3a和第二接收器3b用于检测从受检查者面部反射的可见或不可见光，根据接收到的第一反射信号6a和第二反射信号6b的特性不同，从而判断当前执行测量操作的是左眼或右眼。例如，当眼压测量装置对准左眼时，发射器4发射出的测试信号5被调整为朝向预设角度范围分别射向测量者的左脸外和测量者的面部。由于面部(包含：测量者鼻部7a、测量者左面颊7b、测量者右面颊7c)遮挡的差异，产生的第一反射信号6a和第二反射信号6b分别由第一接收器3a和第二接收器3b接收，随后根据接收到的第一反射信号6a和第二反射信号6b的特征和强度不同来判断测量的是左眼还是右眼。具体可以通过控制器11根据第一反射信号6a的第一信号强度和第二反射信号6b的第二信号强度之间的差值，将该差值与预设阈值进行比较，以确定测量的是左眼还是右眼。本领域技术人员可以根据需要设置合适大小的预设阈值。Optionally, when the transmitter 4 is in the first measurement state, the specific process of the intraocular pressure measurement device for left and right eye identification is described, and the first receiver 3a and the second receiver 3b are used to detect visible or invisible light reflected from the face of the examinee, and the characteristics of the received first reflection signal 6a and the second reflection signal 6b are different, so as to judge whether the current measurement operation is performed by the left eye or the right eye. For example, when the intraocular pressure measurement device is aimed at the left eye, the test signal 5 emitted by the transmitter 4 is adjusted to be emitted toward the left face of the measurer and the face of the measurer in a preset angle range. Due to the difference in the occlusion of the face (including: the nose 7a of the measurer, the left cheek 7b of the measurer, and the right cheek 7c of the measurer), the generated first reflection signal 6a and the second reflection signal 6b are received by the first receiver 3a and the second receiver 3b respectively, and then the measurement is judged to be the left eye or the right eye according to the characteristics and strength of the received first reflection signal 6a and the second reflection signal 6b. Specifically, the controller 11 can compare the difference between the first signal strength of the first reflection signal 6a and the second signal strength of the second reflection signal 6b with a preset threshold value to determine whether the measurement is the left eye or the right eye. Those skilled in the art can set a preset threshold of an appropriate size as needed.
在另一实施中，控制11器用于比较第一反射信号6a的第一信号强度与第二反射信号6b的第二信号强度，以确定当前测量的眼睛为左眼或右眼。In another embodiment, the controller 11 is configured to compare the first signal strength of the first reflection signal 6a with the second signal strength of the second reflection signal 6b to determine whether the currently measured eye is the left eye or the right eye.
【第二测量状态】【Second measurement state】
在一实施例中，眼压测量装置具有第二测量状态，即发射器4还包括第二测量状态，在第二测量状态，发射器4发射具有初始编码值的第二测试信号，以使第一接收器3a接收第二测试信号的第一反射信号6a，第二接收器3b接收第二测试信号的第二反射信号6b；在第二测量状态，控制器11用于分别将初始编码值与第一反射信号6a的第一编码值和第二反射信号6b的第二编码值比较，确定当前测量的眼睛为左眼或右眼。In one embodiment, the intraocular pressure measuring device has a second measuring state, that is, the transmitter 4 also includes a second measuring state. In the second measuring state, the transmitter 4 transmits a second test signal with an initial coding value so that the first receiver 3a receives the first reflection signal 6a of the second test signal, and the second receiver 3b receives the second reflection signal 6b of the second test signal; in the second measuring state, the controller 11 is used to compare the initial coding value with the first coding value of the first reflection signal 6a and the second coding value of the second reflection signal 6b, respectively, to determine whether the currently measured eye is the left eye or the right eye.
在本申请实施例中，第二测试信号可以是第二光信号，第二测试信号是具有编码的信号，例如第二测试信号可以通过模拟信号或数字编码的方式携带数据，具体而言，可以是进行逻辑“1”和逻辑“0”的编码。容易理解的是，第二测试信号也可以通过调制频率和相位来携带信息，本申请并不限于此。In the embodiment of the present application, the second test signal may be a second optical signal, and the second test signal is a coded signal, for example, the second test signal may carry data in the form of an analog signal or digital coding, specifically, it may be encoding of logic "1" and logic "0". It is easy to understand that the second test signal may also carry information by modulating frequency and phase, and the present application is not limited thereto.
以下在发射器4位于第二测量状态下，对眼压测量装置进行左右眼识别的具体过程进行描述。第一接收器3a和第二接收器3b将接收到的从面部反射回的第一反射信号6a和第二反射信号6b，并将其转化为电信号或数字数据。随后控制器11通过信号处理算法、解码器从接收到的第一反射信号6a和第二反射信号6b中提取编码信号，需要说明的是提取编码信号可能涉及滤波、噪声消除、解调和解码等步骤。随后根据编码方案和预设的解码算法对提取的编码信号进行分析和解释，提取出第一反射信号6a的第一编码值和第二发射信号的第二编码值。以上述第二测试信号为编码“1”为例进行说明，如果发射第二测试信号被有效遮挡，那么反射回来的反射编码信号的解码值即为“1”，若没有被有效遮挡，则不为“1”。通过控制器11比较第一编码值和初始编码值之间的第一误码率，以及第二编码值和初始编码之间的第二误码率之间的大小关系，确定当前测量的眼睛为左眼还是右眼。The following describes the specific process of left and right eye recognition of the intraocular pressure measurement device when the transmitter 4 is in the second measurement state. The first receiver 3a and the second receiver 3b receive the first reflected signal 6a and the second reflected signal 6b reflected from the face and convert them into electrical signals or digital data. Then the controller 11 extracts the coded signal from the received first reflected signal 6a and the second reflected signal 6b through the signal processing algorithm and the decoder. It should be noted that the extraction of the coded signal may involve filtering, noise elimination, demodulation and decoding. Then, the extracted coded signal is analyzed and interpreted according to the coding scheme and the preset decoding algorithm to extract the first coded value of the first reflected signal 6a and the second coded value of the second transmitted signal. Take the above-mentioned second test signal as the code "1" as an example for explanation. If the transmitted second test signal is effectively blocked, the decoded value of the reflected reflected coded signal is "1", and if it is not effectively blocked, it is not "1". The controller 11 compares the first bit error rate between the first code value and the initial code value, and the size relationship between the second code value and the initial code, and determines whether the currently measured eye is the left eye or the right eye.
具体而言，将第一编码值和第二编码值分别与第二测试信号的初始编码值进行比较，逐位比较它们的取值，即将第一编码值和第二编码值分别与初始编码值逐位进行异或运算，得到一个结果序列。例如一个实施例中，基于异或运算，若与初始编码不同，异或结果为1，若与初始编码相同，异或结果为0。随后统计结果序列的误码的数量，并根据误码数量和总编码数量计算第一反射信号6a对应的第一误码率和第二反射信号6b的第二误码率。误码率通常以百分比或小数形式表示，表示第一反射信号6a和第二反射信号6b的编码值分别与初始编码值之间的相异程度。Specifically, the first code value and the second code value are compared with the initial code value of the second test signal, and their values are compared bit by bit, that is, the first code value and the second code value are XORed with the initial code value bit by bit to obtain a result sequence. For example, in one embodiment, based on the XOR operation, if it is different from the initial code, the XOR result is 1, and if it is the same as the initial code, the XOR result is 0. Then, the number of bit errors in the result sequence is counted, and the first bit error rate corresponding to the first reflection signal 6a and the second bit error rate of the second reflection signal 6b are calculated based on the number of bit errors and the total number of codes. The bit error rate is usually expressed in percentage or decimal form, indicating the degree of difference between the code values of the first reflection signal 6a and the second reflection signal 6b and the initial code value.
可选地，在本申请另一种可选地实施方式中，进行左右眼识别时，发射器4发出的光束经面部特征(测量者鼻部7a、测量者左面颊7b、测量者右面颊7c)反射后被第一接收器3a和第二接收器3b接收到，其中第一接收器3a接收到的信号强度为v2如图5中虚线波形所示，第二接收器3b接收到的信号强度为v1如图5中实线波形所示。当v1与v2的差值达到一定的量，或者如图5所示v1的信号强度大于v2的信号强度时，即认为当前被测试的是左眼；当v1与v2的差值达到一定的量，或者如图6所示实线v1的信号强度小于虚线v2的信号强度时，即认为当前被测试的是右眼。在实际测量中，为了提高稳定性，可以采用n(n≥2)次测量的方式，将绝对的信号强度认定为数字信号的逻辑“1”和逻辑“0”，通过数字编码的方式，采用误码率来识别，当单一方向上的正确识别率相比另一侧明显偏大，则另一侧即为当前正在测量的眼睛。Optionally, in another optional embodiment of the present application, when performing left and right eye recognition, the light beam emitted by the transmitter 4 is reflected by the facial features (the nose 7a of the person being measured, the left cheek 7b of the person being measured, and the right cheek 7c of the person being measured) and then is received by the first receiver 3a and the second receiver 3a. The signal strength received by the first receiver 3a is v2 as shown in the dotted waveform in FIG5 , and the signal strength received by the second receiver 3b is v1 as shown in the solid waveform in FIG5 . When the difference between v1 and v2 reaches a certain amount, or the signal strength of v1 is greater than the signal strength of v2 as shown in FIG5 , it is considered that the left eye is currently being tested; when the difference between v1 and v2 reaches a certain amount, or the signal strength of the solid line v1 is less than the signal strength of the dotted line v2 as shown in FIG6 , it is considered that the right eye is currently being tested. In actual measurement, in order to improve stability, n (n≥2) times of measurement can be used to identify the absolute signal strength as the logic "1" and logic "0" of the digital signal, and the bit error rate is used for identification through digital coding. When the correct recognition rate in a single direction is significantly larger than that on the other side, the other side is the eye currently being measured.
在一些具体实施例中，如图1所示，眼压测量装置被放置于确定的测量眼正前方，且对齐居中于被测眼睛的角膜中心，保持探针121和被测眼的角膜合适距离，按下功能按键2时，探针121的端部会撞击测量眼的中心并且反弹，当探针121再反弹到容纳腔122中，眼压测量装置通过控制器11启动第一接收器3a和第二接收器3b标定环境光线，作为每次测试前的信号基准强度，然后通过发射器4发射测试信号5，通过第一接收器3a和第二接收器3b分别接收预设角度范围反射的光束，通过软件设定，将第一接收器3a和第二接收器3b接收到的第一反射信号6a和第二反射信号6b的特性进行比较来判断被测眼睛左右位置。该例中，发射器4发射的测试信号5经面部(测量者鼻部7a、测量者左面颊7b、测量者右面颊7c)反射，被第二接收器3b接收得到信号为v1如图5和图6中实线波形所示，被第一接收器3a接收得到信号为v2如图5和图6中虚线波形所示；由于脸部特征的遮挡导致被第一接收器3a和第二接收器3b接收到的第一反射信号6a和第二反射信号6b存在差异，当实线信号v1大于虚线信号v2判定为左眼，反之判定为右眼。In some specific embodiments, as shown in FIG1 , the intraocular pressure measuring device is placed in front of the determined measuring eye and aligned and centered on the corneal center of the measured eye, maintaining a suitable distance between the probe 121 and the cornea of the measured eye, and when the function button 2 is pressed, the end of the probe 121 will hit the center of the measuring eye and rebound, and when the probe 121 rebounds into the accommodating cavity 122, the intraocular pressure measuring device starts the first receiver 3a and the second receiver 3b to calibrate the ambient light through the controller 11 as the signal reference intensity before each test, and then transmits the test signal 5 through the transmitter 4, and receives the light beam reflected within the preset angle range through the first receiver 3a and the second receiver 3b respectively, and compares the characteristics of the first reflection signal 6a and the second reflection signal 6b received by the first receiver 3a and the second receiver 3b through the software setting to determine the left and right positions of the measured eye. In this example, the test signal 5 emitted by the transmitter 4 is reflected by the face (the nose 7a of the person being measured, the left cheek 7b of the person being measured, and the right cheek 7c of the person being measured), and is received by the second receiver 3b to obtain a signal v1 as shown in the solid waveforms in Figures 5 and 6, and is received by the first receiver 3a to obtain a signal v2 as shown in the dotted waveforms in Figures 5 and 6; due to the obstruction of facial features, there is a difference between the first reflected signal 6a and the second reflected signal 6b received by the first receiver 3a and the second receiver 3b. When the solid signal v1 is greater than the dotted signal v2, it is determined to be the left eye, otherwise it is determined to be the right eye.
第二部分：Part II:
在本申请一些实施例中，如图7至图10所示，眼压测量装置包括主体基座1、控制器(图未示)、发射器4和接收器3，主体基座1包括探针121，发射器4和接收器3均设置于主体基座1上，并且设置在探针121的同侧。发射器4的数量为1个，发射器4和接收器3中的第一者与探针121沿第二方向Z设置，发射器4和接收器3中的第二者沿第一方向X设置在第一者的一侧，发射器4发射的测试信号被设置为以预设角度范围朝向背离接收器3的方向传播。第一方向X、第二方向Z和第三方向Y可以相交设置。可选地，第一方向X、第二方向Z和第三方向Y两两垂直。In some embodiments of the present application, as shown in Figures 7 to 10, the intraocular pressure measuring device includes a main body base 1, a controller (not shown), a transmitter 4 and a receiver 3, the main body base 1 includes a probe 121, and the transmitter 4 and the receiver 3 are both arranged on the main body base 1 and arranged on the same side of the probe 121. The number of transmitters 4 is 1, the first of the transmitter 4 and the receiver 3 is arranged along the second direction Z with the probe 121, the second of the transmitter 4 and the receiver 3 is arranged on one side of the first along the first direction X, and the test signal emitted by the transmitter 4 is set to propagate in a direction away from the receiver 3 within a preset angle range. The first direction X, the second direction Z and the third direction Y can be arranged to intersect. Optionally, the first direction X, the second direction Z and the third direction Y are perpendicular to each other.
在一些实施例中，接收器3与探针121沿第二方向Z设置，发射器4沿第一方向X设置在接收器3的一侧，探针121可以沿第三方向Y移动，接收器3设置在分别与第三方向Y和第一方向X垂直的中轴线上，该中轴线沿前述第二方向Z延伸。接收器3与主体部12相邻设置。眼压测量装置还可以包括主体部(主体部的结构与图3所示的第一部分的主体部12相同)。In some embodiments, the receiver 3 and the probe 121 are arranged along the second direction Z, the transmitter 4 is arranged on one side of the receiver 3 along the first direction X, the probe 121 can move along the third direction Y, and the receiver 3 is arranged on a central axis perpendicular to the third direction Y and the first direction X, respectively, and the central axis extends along the second direction Z. The receiver 3 is arranged adjacent to the main body 12. The intraocular pressure measuring device may also include a main body (the structure of the main body is the same as the main body 12 of the first part shown in FIG. 3).
在另一些实施例中，发射器4与探针121沿第二方向Z设置，接收器3沿第一方向X设置在发射器4的一侧，探针121可以沿第三方向Y移动，发射器4设置在分别与第三方向Y和第一方向X垂直的中轴线上，该中轴线沿前述第二方向Z延伸。发射器4与主体部12相邻设置。眼压测量装置还可以包括主体部(主体部的结构与图3所示的第一部分的主体部12相同)。In other embodiments, the transmitter 4 and the probe 121 are arranged along the second direction Z, the receiver 3 is arranged on one side of the transmitter 4 along the first direction X, the probe 121 can move along the third direction Y, and the transmitter 4 is arranged on a central axis perpendicular to the third direction Y and the first direction X, respectively, and the central axis extends along the second direction Z. The transmitter 4 is arranged adjacent to the main body 12. The intraocular pressure measuring device may also include a main body (the structure of the main body is the same as the main body 12 of the first part shown in FIG. 3).
以下以接收器3与探针121沿第二方向Z设置，发射器4沿第一方向X设置在接收器3的一侧为例，对眼压测量装置的工作状态进行介绍。The following takes the example that the receiver 3 and the probe 121 are arranged along the second direction Z, and the transmitter 4 is arranged on one side of the receiver 3 along the first direction X, to introduce the working state of the intraocular pressure measurement device.
在第一测量状态下，发射器4发射的测试信号被设置为以预设角度范围朝向背离接收器3的方向。控制器11分别与发射器4和接收器3连接，用于根据反射信号的信号强度，确定当前测量的眼睛为左眼或右眼。探针121即为眼压测量装置的测量部。In the first measurement state, the test signal emitted by the transmitter 4 is set to face away from the receiver 3 in a preset angle range. The controller 11 is connected to the transmitter 4 and the receiver 3 respectively, and is used to determine whether the eye currently measured is the left eye or the right eye according to the signal strength of the reflected signal. The probe 121 is the measuring part of the intraocular pressure measuring device.
具体来说，由于人体面部特征和眼压测量装置本身功能的特殊性，测试左眼/右眼的位置时，发射器4发出的信号会产生反射信号强度的偏差。控制器11根据接收器3所接收的反射信号强度与预设阈值的比较，判断当前测试的是左眼还是右眼。例如，以图7为例，接收器3设在沿Z方向的中轴线上，发射器4位于接收器3右侧，测试左眼时，发射器4发出的信号主要射向测试者的脸部(鼻部、左脸颊、右脸颊)，基本被反射回到接收器3，反射信号强度较高。测试右眼时，发射器4发出的信号主要射向测试者的脸外，被反射回到接收器3的反射信号强度较低。Specifically, due to the particularity of human facial features and the function of the intraocular pressure measuring device itself, when testing the position of the left eye/right eye, the signal emitted by the transmitter 4 will produce a deviation in the reflected signal intensity. The controller 11 determines whether the current test is the left eye or the right eye based on the comparison of the reflected signal intensity received by the receiver 3 with the preset threshold. For example, taking Figure 7 as an example, the receiver 3 is arranged on the central axis along the Z direction, and the transmitter 4 is located on the right side of the receiver 3. When testing the left eye, the signal emitted by the transmitter 4 is mainly emitted to the face (nose, left cheek, right cheek) of the tester, and is basically reflected back to the receiver 3, and the reflected signal intensity is relatively high. When testing the right eye, the signal emitted by the transmitter 4 is mainly emitted to the outside of the tester's face, and the reflected signal intensity reflected back to the receiver 3 is relatively low.
在另一些实施例中，眼压测量装置处于第二测量状态的情况下，发射器4用于发射具有初始编码值的测试信号，接收器3用于接收测试信号的反射信号，反射信号包括反射编码信号；控制器用于对反射编码信号进行解码，根据获得的解码值和测试编码信号的初始编码值之间的误码率确定当前测量的眼睛为左眼或右眼。In other embodiments, when the intraocular pressure measuring device is in the second measuring state, the transmitter 4 is used to transmit a test signal having an initial coding value, and the receiver 3 is used to receive a reflected signal of the test signal, wherein the reflected signal includes a reflected coding signal; the controller is used to decode the reflected coding signal, and determine whether the currently measured eye is the left eye or the right eye according to the bit error rate between the obtained decoded value and the initial coding value of the test coding signal.
以图7为例，通过一个发射器4向外发射具有初始编码值的测试信号。可选地，以上述测试信号为编码“1”为例进行说明，如果发射的测试编号被有效遮挡，那么反射回来的反射信号的解码值即为1，若没有被有效遮挡，则不为1。容易理解的是，本申请可以通过对反射信号进行滤波、解调获得反射编码信号对应的解码值。Taking Figure 7 as an example, a test signal with an initial coding value is transmitted outwardly through a transmitter 4. Optionally, taking the above test signal as coded "1" as an example, if the transmitted test number is effectively blocked, then the decoding value of the reflected signal The value is 1, and if it is not effectively blocked, it is not 1. It is easy to understand that the present application can obtain the decoding value corresponding to the reflected coded signal by filtering and demodulating the reflected signal.
可选地，在本申请一种可能的实现方式中，可以将解码值与测试信号的编码值进行比较，逐位比较它们的取值，即将解码值和编码值逐位进行异或运算，得到一个结果序列。随后统计结果序列的误码的数量，并根据误码数量和总编码数量计算误码率。误码率通常以百分比或小数形式表示，表示解码值和编码值之间的相异程度。Optionally, in a possible implementation of the present application, the decoded value can be compared with the coded value of the test signal, and their values can be compared bit by bit, that is, the decoded value and the coded value are XORed bit by bit to obtain a result sequence. Then, the number of bit errors in the result sequence is counted, and the bit error rate is calculated based on the number of bit errors and the total number of codes. The bit error rate is usually expressed as a percentage or decimal, indicating the degree of difference between the decoded value and the coded value.
可选地，以上述测试信号为编码“1”为例进行说明，通过数字编码的方式，采用误码率来识别当前测量的眼睛为左眼还是右眼。发射器发射1，在接收端会得到相应的反射编码信号，并对对应的反射编码信号进行滤波、解调得到与反射编码信号对应的解码值，如果有比较强的遮挡，发射1就能接收到1，发射0就能接收到0，如果不是有效遮挡，可能会出现误码率，由此能够通过误码率进行识别左右眼。Optionally, the above test signal is coded as "1" as an example for illustration, and the bit error rate is used to identify whether the currently measured eye is the left eye or the right eye through digital coding. The transmitter transmits 1, and the corresponding reflected coded signal is obtained at the receiving end, and the corresponding reflected coded signal is filtered and demodulated to obtain a decoding value corresponding to the reflected coded signal. If there is a relatively strong occlusion, 1 can be received when 1 is transmitted, and 0 can be received when 0 is transmitted. If it is not an effective occlusion, a bit error rate may occur, so the left and right eyes can be identified by the bit error rate.
在这些可选的实施例中，通过发射测试信号，使得测量的结果更加直观，无需复杂的算法，节省了左右眼识别的成本，简化眼压测量装置。In these optional embodiments, by transmitting the test signal, the measurement result is made more intuitive, no complicated algorithm is required, the cost of left and right eye identification is saved, and the intraocular pressure measurement device is simplified.
本领域技术人员可以理解，第一部分所描述的滤波器、调制件、功能按键、过滤器、修正件，以及调整状态、第一测量状态、第二测量状态，在第二部分可以类比适用。本领域技术人员还可以理解，对于图7所示的发射器4和接收器3，在替代性实施例中，可以将发射器4与接收器3交换位置，并将发射器4设置为全角度发射，将接收器设置为只接收预定角度范围的反射信号，同样能够实现第二部分的发明目的。Those skilled in the art can understand that the filters, modulators, function keys, filters, correction elements, and adjustment states, first measurement states, and second measurement states described in the first part can be applied by analogy in the second part. Those skilled in the art can also understand that for the transmitter 4 and the receiver 3 shown in FIG7 , in an alternative embodiment, the transmitter 4 and the receiver 3 can be exchanged, and the transmitter 4 can be set to transmit at all angles, and the receiver can be set to receive only the reflected signals within a predetermined angle range, which can also achieve the invention purpose of the second part.
本申请第二方面提供了左右眼识别方法。The second aspect of the present application provides a left-right eye recognition method.
第三部分：Part III:
图11示出了本申请一个实施例提供的左右眼识别方法的流程示意图。该方法应用于本申请第一方面的第二部分的眼压测量设备，眼压测量设备包括探针121、发射器4和接收器3，如图7所示。该方法具体包括如下步骤：FIG11 is a flow chart of a left-right eye recognition method provided by an embodiment of the present application. The method is applied to the intraocular pressure measurement device of the second part of the first aspect of the present application, and the intraocular pressure measurement device includes a probe 121, a transmitter 4 and a receiver 3, as shown in FIG7. The method specifically includes the following steps:
S100，在探针121与被测眼相对的情况下，通过发射器4所发射的测试信号被调整或者设置为朝向预设角度范围，测试信号为第一测试信号或第二测试信号，第一测试信号未携带编码，第二测试信号携带编码，例如，预设角度范围为被测眼所在方位的左侧斜下方或右侧斜下方，被测眼为左眼和右眼中的一者。例如图7所示，发射器4位于接收器3的右侧，预设角度范围为被测眼所在方位的右侧斜下方。本领域技术人员可以理解，在另一实施例中，发射器4位于接收器3的左侧，预设角度范围为被测眼所在方位的左侧斜下方。S100, when the probe 121 is opposite to the eye to be tested, the test signal transmitted by the transmitter 4 is adjusted or set to be oriented toward a preset angle range, the test signal is a first test signal or a second test signal, the first test signal does not carry a code, and the second test signal carries a code, for example, the preset angle range is obliquely below the left side or obliquely below the right side of the position of the eye to be tested, and the eye to be tested is one of the left eye and the right eye. For example, as shown in FIG7 , the transmitter 4 is located on the right side of the receiver 3, and the preset angle range is obliquely below the right side of the position of the eye to be tested. Those skilled in the art will appreciate that, in another embodiment, the transmitter 4 is located on the left side of the receiver 3, and the preset angle range is obliquely below the left side of the position of the eye to be tested.
结合图7至图9所示，眼压测量装置的发射器4所发射的测试信号被调整或设置为朝向预设角度范围，接收器3用于接收环境光以及发射的测试信号等反射回的信号。眼压测量设备还可以包括前述主体部12，主体部12的结构参考图3所示，探针121即为眼压测量设备的测量部，用于测量眼睛的眼压。As shown in Figures 7 to 9, the test signal emitted by the transmitter 4 of the intraocular pressure measurement device is adjusted or set to be directed toward a preset angle range, and the receiver 3 is used to receive ambient light and signals reflected back such as the emitted test signal. The intraocular pressure measurement device may also include the aforementioned main body 12, the structure of which is shown in Figure 3, and the probe 121 is the measuring part of the intraocular pressure measurement device, which is used to measure the intraocular pressure of the eye.
在本申请实施例中，第一测试信号是可见光线，例如波长范围在0.77～0.39微米之间的光线。在其他实施例中，第一测试信号是红外光线，例如波长范围为0.76-1000微米的红外波段的电磁波。In the embodiment of the present application, the first test signal is a visible light, such as a light with a wavelength range of 0.77 to 0.39 microns. In other embodiments, the first test signal is an infrared light, such as an electromagnetic wave in the infrared band with a wavelength range of 0.76-1000 microns.
在本申请另一些实施例中，第二测试信号是具有编码的信号，例如光信号通过模拟信号或数字编码的方式携带数据，具体而言，可以是进行逻辑“1”和逻辑“0”的编码。容易理解的是，光信号也可以通过调制频率和相位来携带信息，本申请并不限于此。In other embodiments of the present application, the second test signal is a coded signal, for example, an optical signal carries data by means of analog signals or digital coding, specifically, it can be encoding of logic "1" and logic "0". It is easy to understand that the optical signal can also carry information by modulating frequency and phase, and the present application is not limited thereto.
可选地，在本申请实施例中，预设角度范围是为了能够适应人脸面部的形状特征，使得测试信号在测量不同的眼睛时，拥有不同的反射效果。假设发射器4如图7所示设置在接收器3的右侧，眼压测量装置在测量右眼时，由于被调整的测试信号朝向预设角度范围，为朝向被测眼(此时为右眼)所在方位的右侧斜下方，因此该测试信号会从人脸面部右侧旁侧射出，例如从人脸耳畔射出，照射到人脸的后方。用如图7所示的眼压测量装置在测量左眼时，由于预设角度范围为朝向被测眼(此时为左眼)所在方位的右侧斜下方，因此该测试信号会大部分被人脸面部(鼻部、左脸颊、右脸颊)遮挡，由此能够产生不同的反射效果。本领域技术人员可以理解，发射器4位于接收器3左侧时原理类似。Optionally, in the embodiment of the present application, the preset angle range is to adapt to the shape characteristics of the human face, so that the test signal has different reflection effects when measuring different eyes. Assuming that the transmitter 4 is arranged on the right side of the receiver 3 as shown in Figure 7, when the intraocular pressure measuring device measures the right eye, since the adjusted test signal is directed toward the preset angle range, it is directed toward the right side obliquely downward of the position of the eye to be tested (right eye at this time), so the test signal will be emitted from the right side of the face, for example, from the ear of the face, and illuminate the back of the face. When measuring the left eye with the intraocular pressure measuring device as shown in Figure 7, since the preset angle range is directed toward the right side obliquely downward of the position of the eye to be tested (left eye at this time), the test signal will be mostly blocked by the face (nose, left cheek, right cheek), thereby different reflection effects can be produced. It can be understood by those skilled in the art that the principle is similar when the transmitter 4 is located on the left side of the receiver 3.
容易理解的是，本申请并不限制预设角度范围的确定方式，预设角度范围可以根据人脸脸型进行调整，例如通过模型训练得到，或在测量时通过人工调整得到，只要能够实现在测量不同的眼睛时，测试信号具有不同的反射效果即可。It is easy to understand that the present application does not limit the method for determining the preset angle range. The preset angle range can be adjusted according to the face shape of the human face, for example, obtained through model training, or obtained through manual adjustment during measurement, as long as the test signal can have different reflection effects when measuring different eyes.
可选地，眼压测量装置的探针与眼睛相对，即眼压测量装置被放置于被测眼的正前方，且对齐居中于被测眼的角膜中心，此时则说明测试装置对准操作完成，可以进行下一步测量，此时开始进行左右眼的识别。Optionally, the probe of the intraocular pressure measuring device is opposite to the eye, that is, the intraocular pressure measuring device is placed in front of the eye to be measured and aligned with the eye. The test device is centered on the cornea of the eye being tested. This means that the alignment operation of the test device is complete and the next step of measurement can be performed. At this time, the identification of the left and right eyes begins.
具体而言，首先根据设备设计和测量需求进行设置，确定预设角度范围。随后，根据要求选择测试信号的类型，例如选择第一测试信号或第二测试信号进行测量。根据预设角度范围调整，使得发射器发射的测试信号能够被调整为朝向预设角度范围。随后在设定好的角度范围下，使用发射器发射选定的测试信号，测试信号被调整为朝向特定位置。Specifically, firstly, the device is set up according to the design and measurement requirements, and the preset angle range is determined. Then, the type of test signal is selected according to the requirements, for example, the first test signal or the second test signal is selected for measurement. According to the preset angle range, the test signal emitted by the transmitter can be adjusted to face the preset angle range. Then, within the set angle range, the selected test signal is emitted by the transmitter, and the test signal is adjusted to face a specific position.
S200，通过接收器3接收测试信号在照射到面部后和/或照射到环境后反射回的反射信号。S200 , receiving, by the receiver 3 , a reflected signal of the test signal after the test signal is irradiated onto the face and/or the environment.
在本申请实施例中，反射信号即为测试信号在照射到人脸面部后或者是在照射到环境中反射回来的反射信号。需要说明的是，由于预设角度范围的设置，测试信号在测量不同的眼睛时，接收器3接收到的反射信号的信号强度是存在差异的。In the embodiment of the present application, the reflected signal is the reflected signal of the test signal after being irradiated onto the face of a person or reflected back from the environment. It should be noted that due to the setting of the preset angle range, when the test signal is measuring different eyes, the signal strength of the reflected signal received by the receiver 3 is different.
在本申请实施例中，可以通过上述眼压测量装置的接收器接收反射信号。在本申请一种可能的实现方式中，可以根据测试信号自身的标识信息确定，接收到的反射信号是属于测试信号的反射信号。具体而言，标识信息可以是专属于测试信号的编码符号，通过读取该编码符号可以识别出接收到的反射信号是否属于测试信号反射回的信号。In an embodiment of the present application, the reflection signal can be received by the receiver of the above-mentioned intraocular pressure measurement device. In a possible implementation of the present application, it can be determined based on the identification information of the test signal itself that the received reflection signal is a reflection signal belonging to the test signal. Specifically, the identification information can be a coding symbol dedicated to the test signal, and by reading the coding symbol, it can be identified whether the received reflection signal belongs to the signal reflected back by the test signal.
在本申请另一种可能的实现方式中，还可以根据测试信号的发射频率来识别接收到的反射信号是否属于测试信号反射回的信号。在本申请实施例中，接收到反射信号的同时，可能接收到环境光(通常是直流信号)，参考第一部分所描述，可以使用高通滤波器或者低通滤波器进行电子过滤。在实际测量环境中还可能存在一些调制光，无法通过上述直流信号滤波的方式过滤掉，可以通过设置光学滤波器对调制光进行过滤，例如，带通滤波器、阻挡滤波器、干涉滤波器、棱镜滤波器或折射滤波器等实现光信号过滤，参考第一部分。In another possible implementation of the present application, it is also possible to identify whether the received reflected signal belongs to the signal reflected back by the test signal according to the emission frequency of the test signal. In an embodiment of the present application, while receiving the reflected signal, ambient light (usually a DC signal) may be received. With reference to the description in the first part, a high-pass filter or a low-pass filter can be used for electronic filtering. In the actual measurement environment, there may also be some modulated light that cannot be filtered out by the above-mentioned DC signal filtering method. The modulated light can be filtered by setting an optical filter, for example, a bandpass filter, a blocking filter, an interference filter, a prism filter or a refraction filter to achieve optical signal filtering, refer to the first part.
可选地，在本申请实施例中，可以首先根据测量需求和设备规格，设置接收器的参数，包括增益、灵敏度等，确保接收器能够接收到从面部反射回来的反射信号，并能够测量到反射信号的信号强度。具体请参考本申请第一部分的相关描述。Optionally, in the embodiment of the present application, the parameters of the receiver, including gain, sensitivity, etc., can be set according to the measurement requirements and equipment specifications to ensure that the receiver can receive the reflected signal reflected from the face and measure the signal strength of the reflected signal. Please refer to the relevant description in the first part of this application for details.
S300，根据反射信号的信号强度或编码，确定当前测量的眼睛为左眼或右眼。S300, determining whether the eye currently being measured is the left eye or the right eye according to the signal strength or coding of the reflected signal.
可选地，在本申请一种可能的实现方式中，假设测试信号为第一测试信号的情况下，可以通过比较反射信号的信号强度的大小来判别当前正在测量的眼睛为左眼还是右眼。在本申请另一种可能的实现方式中，假设测试信号为第二测试信号的情况下，可以通过读取分析反射信号中携带的具体编码值，从而识别出当前正在测量的眼睛为左眼还是右眼。Optionally, in one possible implementation of the present application, assuming that the test signal is a first test signal, the eye currently being measured can be determined to be the left eye or the right eye by comparing the signal strength of the reflected signal. In another possible implementation of the present application, assuming that the test signal is a second test signal, the eye currently being measured can be identified to be the left eye or the right eye by reading and analyzing the specific coding value carried in the reflected signal.
可选地，在本申请实施例中，利用发射器朝向预设角度范围发射光线，光线可能被面部遮挡，或者从人脸面部旁侧发射到环境中，然后接收器接收到反射光线的强度，通过与光线强度的初始值或者预设阈值的比较，判断被测眼是左眼还是右眼。在另一些实施例中，如果测试信号中包含了编码信息，可以通过解码分析来确定眼睛的测量。根据编码的特征，比如特定的频率、时序、模式或编码值，将接收到的反射信号与初始编码进行比较，以确定被测眼。Optionally, in an embodiment of the present application, a transmitter is used to emit light toward a preset angle range, and the light may be blocked by the face, or emitted from the side of the face into the environment, and then the receiver receives the intensity of the reflected light, and by comparing it with the initial value of the light intensity or a preset threshold, it is determined whether the eye being tested is the left eye or the right eye. In other embodiments, if the test signal contains coded information, the measurement of the eye can be determined by decoding analysis. Based on the characteristics of the code, such as a specific frequency, timing, pattern or code value, the received reflected signal is compared with the initial code to determine the eye being tested.
可选地，在本申请一种可能的实现方式中，可以首先建立一个参考标准，用于确定左眼和右眼的信号强度或编码范围。该参考标准可以通过预先进行校准或者基于经验设定的预设阈值来实现。随后将接收到的反射信号的信号强度或编码与参考标准进行比较。如果信号强度或编码落在左眼的参考范围内，则可以确定当前测量的眼睛为左眼；如果信号强度或编码落在右眼的参考范围内，则可以确定当前测量的眼睛为右眼。Optionally, in a possible implementation of the present application, a reference standard may be first established to determine the signal strength or coding range of the left eye and the right eye. The reference standard may be implemented by pre-calibration or a preset threshold value set based on experience. The signal strength or coding of the received reflected signal is then compared with the reference standard. If the signal strength or coding falls within the reference range of the left eye, it may be determined that the eye currently being measured is the left eye; if the signal strength or coding falls within the reference range of the right eye, it may be determined that the eye currently being measured is the right eye.
在一实施例中，上述步骤300具体可以执行如下步骤：In one embodiment, the above step 300 may specifically perform the following steps:
S310，在测试信号为第一测试信号的情况下，获取反射信号的第一信号强度。S310: When the test signal is a first test signal, obtain a first signal strength of a reflected signal.
可选地，在本申请实施例中，首先使用发射器发射的第一测试信号被调整为朝向预设角度范围，随后通过接收器接收面部反射回的信号。通过接收器的内置功能或外部设备进行测量和分析得到反射信号的强度，获得第一信号强度的数值。具体而言，可以通过直接读取反射信号的信号结构的方式获取得到反射信号的信号强度；亦或者是，通过信号强度检测器检测反射信号的信号强度。Optionally, in an embodiment of the present application, a first test signal emitted by a transmitter is first adjusted to face a preset angle range, and then a signal reflected from the face is received by a receiver. The strength of the reflected signal is measured and analyzed by a built-in function of the receiver or an external device to obtain a value of the first signal strength. Specifically, the signal strength of the reflected signal can be obtained by directly reading the signal structure of the reflected signal; or, the signal strength of the reflected signal can be detected by a signal strength detector.
在这些可选地实施例中，通过获取第一信号强度，可以获得反射信号的量化数值，用于后续的分析和判断。In these optional embodiments, by acquiring the first signal strength, a quantized value of the reflected signal can be obtained for subsequent analysis and judgment.
S320，通过比较第一信号强度与第一预设阈值，确定当前测量的眼睛是左眼还是右眼。S320, determining whether the eye currently being measured is the left eye or the right eye by comparing the first signal strength with a first preset threshold.
可选地，在本申请实施例中，可以首先根据实际需求和测量系统的特性，设定一个第一预设阈值，作为判断的参考标准。随后将测得的第一信号强度与设定的第一预设阈值进行比较，确定当前测量的眼睛。Optionally, in the embodiment of the present application, a first preset threshold may be set as a reference standard for judgment according to actual needs and characteristics of the measurement system, and then the measured first signal strength is compared with the set first preset threshold to determine the eye currently being measured.
可选地，在本申请另一些实施例中，眼压测量装置包括一个可发射红外或可见光的发射器4，和不少于一个的接收器3，用于检测从受检查者面部反射的可见光(即反射信号)，根据接收到的反射光线7的强度的不同，从而判断当前执行测量操作的眼睛8。Optionally, in other embodiments of the present application, the intraocular pressure measuring device includes a transmitter 4 that can emit infrared or visible light, and at least one receiver 3, which is used to detect visible light (i.e., reflection signal) reflected from the face of the examinee, and judge the eye 8 currently performing the measurement operation based on the different intensities of the received reflected light 7.
具体而言，假设发射器4位于接收器3的右侧，接收器3居中，如图8显示左眼检测示意图。当眼压测量装置对准眼睛8的时候，发射器4发射测试信号5被调整为背离接收器3的方向。测试信号5的大部分光线照射在人体右侧面部和鼻骨附近，在面部的遮挡下形成漫反射，大部分反射信号6照射到接收器3，此时接收器3能够检测到的反射信号的第一信号强度大于第一预设阈值，由此判断当前测量的是左眼。Specifically, assuming that the transmitter 4 is located on the right side of the receiver 3, and the receiver 3 is centered, as shown in Figure 8, a schematic diagram of left eye detection. When the intraocular pressure measuring device is aimed at the eye 8, the transmitter 4 transmits a test signal 5 which is adjusted to be away from the receiver 3. Most of the light of the test signal 5 is irradiated on the right side of the human face and near the nasal bone, forming diffuse reflection under the cover of the face, and most of the reflected signal 6 is irradiated on the receiver 3. At this time, the first signal strength of the reflected signal that can be detected by the receiver 3 is greater than the first preset threshold, thereby judging that the left eye is currently being measured.
用同样设置的眼压测量装置测量右眼时，如图9显示右眼检测示意图。测试信号5的大部分光线照射在人体右侧耳畔及以外区域，在面部能够产生的反射非常微弱，此时接收器3能够检测到微弱的信号变化，甚至无变化，即第一信号强度小于第一预设阈值。由此判断当前测量的是右眼。When the right eye is measured with the intraocular pressure measuring device of the same setting, a schematic diagram of right eye detection is shown in FIG9 . Most of the light of the test signal 5 is irradiated on the right ear of the human body and other areas, and the reflection generated on the face is very weak. At this time, the receiver 3 can detect a weak signal change or even no change, that is, the first signal strength is less than the first preset threshold. It is thus determined that the current measurement is the right eye.
总结上述实施例，假设发射器4位于接收器3的第一侧的方向，当测试信号为第一测试信号时，第一测试信号不带编码，通过将第一信号强度与第一预设阈值进行比较，当第一信号强度大于第一预设阈值时，判断被测眼为第一侧的眼睛，当第一信号强度小于第一预设阈值时，判断被测眼为与第一侧反向的眼睛。To summarize the above embodiments, assuming that the transmitter 4 is located in the direction of the first side of the receiver 3, when the test signal is a first test signal, the first test signal is not encoded, and by comparing the first signal strength with a first preset threshold, when the first signal strength is greater than the first preset threshold, it is judged that the tested eye is the eye on the first side, and when the first signal strength is less than the first preset threshold, it is judged that the tested eye is the eye opposite to the first side.
需要说明的是上述实施例的发射器4位于设备的左边，当然它也可以位于设备的右边，基于发射器4的位置，来判断反射光线的强度变化对应的左眼还是右眼。It should be noted that the transmitter 4 in the above embodiment is located on the left side of the device. Of course, it can also be located on the right side of the device. Based on the position of the transmitter 4, it is determined whether the intensity change of the reflected light corresponds to the left eye or the right eye.
以下描述考虑初始环境光的情况下的左右眼识别方法。The following describes a left-right eye recognition method taking into account the initial ambient light.
在一实施例中，在步骤100之前，该方法还可以具体执行如下步骤：In one embodiment, before step 100, the method may further specifically perform the following steps:
S400，在测试信号为第一测试信号的情况下，获取被测人脸面部所在环境的初始环境光的初始环境光强度。S400, when the test signal is a first test signal, obtaining the initial ambient light intensity of the initial ambient light of the environment where the tested face is located.
可选地，在本申请实施例中，环境光具体可以是当前测量环境的环境光，具体而言，环境光强度可以是检测当前初始环境光的光线强度。例如，在没有人脸存在的情况下，通过接收器接收人脸面部所在环境的初始环境光的强度数据。随后对收集到的测试环境光数据进行处理和分析，例如可以使用统计方法(如平均值、中位数等)来计算测试环境光的强度。最后将所得到的测试环境光强度作为初始环境光的初始环境光强度。Optionally, in an embodiment of the present application, the ambient light may specifically be the ambient light of the current measurement environment, and specifically, the ambient light intensity may be the light intensity of the current initial ambient light detected. For example, in the absence of a human face, the intensity data of the initial ambient light of the environment where the human face is located is received by a receiver. The collected test ambient light data is then processed and analyzed, for example, a statistical method (such as mean, median, etc.) may be used to calculate the intensity of the test ambient light. Finally, the obtained test ambient light intensity is used as the initial ambient light intensity of the initial ambient light.
在这些可选地实施例中，获取被测人脸面部所在环境的初始环境光强度，提供了人脸面部所在环境的初始环境光强度的参考值，用于后续测量的基准标准。In these optional embodiments, the initial ambient light intensity of the environment where the measured face is located is obtained, providing a reference value of the initial ambient light intensity of the environment where the measured face is located, which is used as a benchmark standard for subsequent measurements.
在一实施例中，上述步骤200具体可以执行如下步骤：In one embodiment, the above step 200 may specifically perform the following steps:
S210，获取被测人脸面部所在环境的测试环境光的测试环境光强度，测试环境光包括反射信号。S210, obtaining the test ambient light intensity of the test ambient light in the environment where the face of the person being tested is located, where the test ambient light includes a reflection signal.
可选地，在本申请实施例中，测试环境光即为发射测试信号后，通过接收器接收人脸面部此时所处环境的所有光线，即测试环境光，因此测试环境光应包括测试信号在人脸面部反射回的反射信号。通过接收器接收测试环境光的信息，从而得到测试环境光的强度。Optionally, in the embodiment of the present application, the test environment light is all the light in the environment where the face is located at the moment after the test signal is emitted, that is, the test environment light, and therefore the test environment light should include the reflected signal of the test signal reflected from the face. The information of the test environment light is received by the receiver, thereby obtaining the intensity of the test environment light.
在这些可选地实施例中，通过分析测试环境光的强度和初始环境光的强度能够准确识别左右眼，使得测量结果更准确和可靠。In these optional embodiments, the left and right eyes can be accurately identified by analyzing the intensity of the test ambient light and the intensity of the initial ambient light, making the measurement results more accurate and reliable.
在一实施例中，上述步骤300具体可以执行如下步骤：In one embodiment, the above step 300 may specifically perform the following steps:
S330，通过将初始环境光强度与测试环境光强度的差值与第二预设阈值进行比较，确定当前测量的眼睛是左眼还是右眼。S330, determining whether the eye currently being measured is the left eye or the right eye by comparing the difference between the initial ambient light intensity and the test ambient light intensity with a second preset threshold.
在本申请一种可能的实现方式中，如图8所示，由于发射器4位于接收器3的右侧，测试信号被调整为朝向人脸的右侧发射，因此在测试左眼时，测试信号的大部分光线照射在人体右侧面部和鼻骨附近，在面部的遮挡下形成漫反射，此时接收器3能够接收到较多的反射信号，因此此时测试环境光与初始环境光相比，势必包括更多的反射信号，即说明此时初始环境光强度和测试环境光强度的差值大于第二预设阈值，可以判断当前测量的眼睛为左眼。In a possible implementation of the present application, as shown in FIG8 , since the transmitter 4 is located on the right side of the receiver 3, the test signal is adjusted to be emitted toward the right side of the face. Therefore, when testing the left eye, most of the light of the test signal is irradiated on the right side of the face and near the nasal bone of the human body, and diffuse reflection is formed under the cover of the face. At this time, the receiver 3 can receive more reflected signals. Therefore, compared with the initial ambient light, the test ambient light at this time is bound to include more reflected signals, which means that the difference between the initial ambient light intensity and the test ambient light intensity at this time is greater than the second preset threshold value, and it can be judged that the eye currently measured is the left eye.
以图9为例，由于测试信号朝向右眼发射，因此在测试右眼时，测试信号的大部分光线会照射在人体右侧耳畔及以外区域，在面部能够产生的反射非常微弱，此时接收器3仅能够接收到较少从面部反射回的反射信号，甚至接收不到从面部反射回的反射信号，接收的均是从环境反射回的反射信号，而从环境反射回的反射信号相比从人脸反射回的反射信号，从环境反射回的反射信号经过反射路径较长，因此从环境反射回的反射信号的信号强度要小于从人脸反射回的反射信号，因此此时测试环境光与初始环境光之间的信号强度的差值较小，即说明此时初始环境光强度和测试环境光强度的差值小于第二预设阈值，可以判断当前测量的眼睛为右眼。Taking Figure 9 as an example, since the test signal is emitted toward the right eye, when testing the right eye, most of the test signal light will illuminate the right ear of the human body and other areas, and the reflection that can be generated on the face is very weak. At this time, the receiver 3 can only receive a small amount of reflected signals reflected from the face, or even no reflected signals reflected from the face. What are received are all reflected signals reflected from the environment. Compared with the reflected signals reflected from the face, the reflected signals reflected from the environment have a longer reflection path. Therefore, the signal strength of the reflected signals reflected from the environment is smaller than that of the reflected signals reflected from the face. Therefore, the difference in signal strength between the test ambient light and the initial ambient light is smaller at this time, which means that the difference between the initial ambient light intensity and the test ambient light intensity is smaller than the second preset threshold value, and it can be determined that the eye currently measured is the right eye.
在这些可选地实施例中，通过对环境光强度的变化进行判断，可以区分出不同眼睛的测量结果。提供了眼睛识别的依据，确保测量结果与被测眼睛相对应。In these optional embodiments, by judging the change in the intensity of the ambient light, the measurement results of different eyes can be distinguished, providing a basis for eye recognition and ensuring that the measurement result corresponds to the measured eye.
在一实施例中，在步骤100之前，该方法还可以具体执行如下步骤：In one embodiment, before step 100, the method may further specifically perform the following steps:
S500，采集被测人脸面部所在环境的初始环境光在多个位置下的多个环境光参数，环境光参数包括光线强度和干扰信号的信号强度中的至少一者。S500, collecting a plurality of ambient light parameters of the initial ambient light of the environment where the measured face is located at a plurality of positions, wherein the ambient light parameters include at least one of the light intensity and the signal intensity of the interference signal.
随后通过对环境光的特性进行分析，得到信号基准强度。需要说明的是，环境光中可能还会存在干扰发射器发射测试信号的杂乱电波等干扰信号，因此在确定信号基准强度之前，可以对这些干扰信号进行过滤，以提高信号基准强度的可靠性，进一步提高左右眼识别的准确性，其中，对干扰源的过滤方式可参照步骤200中的描述，本申请在此不再赘述。Then, the signal reference strength is obtained by analyzing the characteristics of the ambient light. It should be noted that there may be interference signals such as cluttered radio waves that interfere with the test signal emitted by the transmitter in the ambient light. Therefore, before determining the signal reference strength, these interference signals can be filtered to improve the reliability of the signal reference strength and further improve the accuracy of left and right eye recognition. The filtering method of the interference source can refer to the description in step 200, and this application will not repeat it here.
可选地，在本申请实施例中，可以在多个位置上放置传感器或接收器，以覆盖整个人脸面部所在的区域。随后可以通过光传感器、光电二极管或其他合适的传感器进行测量和记录每个位置下的环境光参数。这些参数可以包括光线强度、干扰信号的信号强度等。随后将所获得的环境光参数存储或记录下来，以供后续使用。Optionally, in the embodiment of the present application, sensors or receivers may be placed at multiple positions to cover the entire area where the human face is located. The ambient light parameters at each position may then be measured and recorded by a light sensor, a photodiode, or other suitable sensor. These parameters may include light intensity, signal strength of interference signals, etc. The obtained ambient light parameters are then stored or recorded for subsequent use.
在这些可选地实施例中，采集被测人脸面部所在环境的初始环境光的多个环境光参数，提供了对环境光的全面了解，通过在多个位置采集环境光参数，可以获取不同位置的光线强度和干扰信号强度等信息，从而全面了解人脸面部所在环境的光照情况。通过收集多个环境光参数，可以考虑到环境光在不同位置的变化，从而提高测量的准确性和可靠性。In these optional embodiments, multiple ambient light parameters of the initial ambient light of the environment where the measured face is located are collected, providing a comprehensive understanding of the ambient light. By collecting ambient light parameters at multiple locations, information such as light intensity and interference signal intensity at different locations can be obtained, thereby fully understanding the lighting conditions of the environment where the face is located. By collecting multiple ambient light parameters, changes in ambient light at different locations can be taken into account, thereby improving the accuracy and reliability of the measurement.
S600，基于多个环境光参数，确定信号基准强度。S600, determining a signal reference strength based on multiple ambient light parameters.
可选地，在本申请实施例中，可以将收集到的多个环境光参数进行整理和分析。例如可以计算光线强度和干扰信号的平均值、方差或其他统计指标，以获得对环境光照条件和干扰水平的综合评估。根据分析的结果和预设的算法或规则，确定信号基准强度。这可能涉及对光线强度和干扰信号强度之间的关系进行建模和校准。具体而言，可以使用线性拟合、曲线拟合、灰度校准等方法来确定信号基准强度。随后可以在不同的环境条件下进行测试，比较测量结果与预期结果，以验证信号基准强度的准确性和稳定性。Optionally, in an embodiment of the present application, the collected multiple ambient light parameters can be sorted and analyzed. For example, the mean, variance or other statistical indicators of the light intensity and the interference signal can be calculated to obtain a comprehensive assessment of the ambient light conditions and the interference level. According to the results of the analysis and the preset algorithm or rule, the signal reference strength is determined. This may involve modeling and calibrating the relationship between the light intensity and the interference signal intensity. Specifically, the signal reference strength can be determined using methods such as linear fitting, curve fitting, and grayscale calibration. Subsequently, tests can be performed under different environmental conditions, and the measurement results can be compared with the expected results to verify the accuracy and stability of the signal reference strength.
可选地，在这些可选的实施例中，得到信号基准强度，可以作为后续测量的参考基准值。该参考基准的作用在于，一方面可以当发射器照射面部，并在面部反射之后，可以修正正常测量时接收器接收到的反射信号强度，得到信号增量或信号减量；另一方面可以实时的根据环境光特性来调整发射器的发射强度，使接收器接收到的反射信号增量或信号减量趋于稳定，便于稳定测量。Optionally, in these optional embodiments, the signal reference strength is obtained, which can be used as a reference value for subsequent measurements. The role of this reference is that, on the one hand, when the transmitter irradiates the face and reflects on the face, the reflected signal strength received by the receiver during normal measurement can be corrected to obtain a signal increment or signal decrement; on the other hand, the emission intensity of the transmitter can be adjusted in real time according to the ambient light characteristics, so that the reflected signal increment or signal decrement received by the receiver tends to be stable, which is convenient for stable measurement.
在这些可选的实施例中，通过分析多个环境光参数，可以综合考虑光线强度、干扰信号等多种环境因素对测量的影响，从而确定适合当前环境的信号基准强度。通过建立信号基准强度，可以使测量信号在不同环境条件下保持稳定，降低环境变化对测量结果的影响，提高测量的一致性和可靠性。In these optional embodiments, by analyzing multiple ambient light parameters, the influence of various environmental factors such as light intensity and interference signals on the measurement can be comprehensively considered to determine the signal reference strength suitable for the current environment. By establishing the signal reference strength, the measurement signal can be kept stable under different environmental conditions, the influence of environmental changes on the measurement results can be reduced, and the consistency and reliability of the measurement can be improved.
S700，根据信号基准强度，确定测试信号的发射信号强度。S700, determining a transmission signal strength of a test signal according to a reference signal strength.
在一实施例中，基于步骤S500、S600和S700，上述步骤100具体可以执行如下步骤：In one embodiment, based on steps S500, S600 and S700, the above step 100 may specifically perform the following steps:
S110，使用信号基准强度作为参考，计算出当前环境下测试信号的合适的发射信号强度，以预设角度范围和发射信号强度发射测试信号。S110, using the signal reference strength as a reference, calculating the appropriate transmission signal strength of the test signal in the current environment, and transmitting the test signal within a preset angle range and transmission signal strength.
在本申请一种可能的实现方式中，根据信号基准强度和测试信号的特性，使用线性拟合、曲线拟合或其他适当的数学模型建立一个调整模型，该模型描述了发射信号强度与信号基准强度之间的关系。随后可以根据建立的调整模型，使用信号基准强度作为参考，计算出适合的测试信号的发射信号强度。需要说明的是，发射信号强度是根据当前环境进行调整的。In a possible implementation of the present application, according to the characteristics of the signal reference strength and the test signal, an adjustment model is established using linear fitting, curve fitting or other appropriate mathematical models, which describes the relationship between the transmission signal strength and the signal reference strength. Subsequently, the transmission signal strength of the appropriate test signal can be calculated based on the established adjustment model using the signal reference strength as a reference. It should be noted that the transmission signal strength is adjusted according to the current environment.
例如，当测量环境较暗时，此时需要降低发射信号强度，由此保证测量能够正确进行，保证测量的稳定性；当测量环境较亮时，则需要增强发射信号强度，以防止环境光太强，导致测量不准确，进一步增强了测量的稳定性。For example, when the measurement environment is dark, it is necessary to reduce the emission signal strength to ensure that the measurement can be carried out correctly and to ensure the stability of the measurement; when the measurement environment is bright, it is necessary to increase the emission signal strength to prevent the ambient light from being too strong, resulting in inaccurate measurement, thereby further enhancing the stability of the measurement.
可选地，在本申请实施例中，为了提高检测时的抗干扰能力，可以对发射器发射的测试信号进行脉冲宽度调制(Pulse Width Modulation，PWM)，并在接收反射信号的接收端对信号进行滤波、解调。其中PWM调制、解调，可以通过软件或硬件或者软件硬件结合的方式来实现。整个检测过程，可以间隙性的使用多组不同频率的PWM调制来增加稳定性。Optionally, in an embodiment of the present application, in order to improve the anti-interference ability during detection, the test signal emitted by the transmitter can be pulse width modulated (PWM), and the signal can be filtered and demodulated at the receiving end that receives the reflected signal. Among them, PWM modulation and demodulation can be implemented by software or hardware or a combination of software and hardware. During the entire detection process, multiple groups of PWM modulations with different frequencies can be intermittently used to increase stability.
在这些可选的实施例中，通过根据信号基准强度调整发射信号强度，可以使测试信号在不同环境条件下达到合适的强度，以确保可靠的测量结果。优根据信号基准强度调整发射信号的强度可以使信号与环境光之间的差异最小化，提高信号传输的质量和稳定性。In these optional embodiments, by adjusting the intensity of the transmitted signal according to the signal reference intensity, the test signal can reach a suitable intensity under different environmental conditions to ensure reliable measurement results. Preferably, adjusting the intensity of the transmitted signal according to the signal reference intensity can minimize the difference between the signal and the ambient light, thereby improving the quality and stability of signal transmission.
在一实施例中，基于步骤S500、S600和S700，上述步骤300具体可以执行如下步骤：In one embodiment, based on steps S500, S600 and S700, the above step 300 may specifically perform the following steps:
S360，以预设信号参考标准为参照，通过信号基准强度，对接收到的反射信号进行修正，得到反射信号的修正反射信号，预设信号参考标准为在预设条件下反射信号的信号强度。S360, using a preset signal reference standard as a reference, and correcting the received reflected signal by a signal reference strength to obtain a corrected reflected signal of the reflected signal, wherein the preset signal reference standard is a signal strength of the reflected signal under preset conditions.
可选地，在本申请实施例中，可以首先在预设条件下，测量并记录反射信号的信号强度，作为预设信号参考标准。随后使用接收器接收到来自被测人脸面部反射回的信号。通过比较接收到的反射信号的信号强度与信号基准强度的差异，计算修正值。随后将接收到的反射信号与修正值相加或相减，得到修正后的反射信号。修正的目的是校正环境因素对反射信号的影响，以提高测量结果的准确性和稳定性。Optionally, in an embodiment of the present application, the signal strength of the reflected signal can be first measured and recorded under preset conditions as a preset signal reference standard. Then, a receiver is used to receive the signal reflected from the face of the person being measured. By comparing the difference between the signal strength of the received reflected signal and the signal reference strength, a correction value is calculated. Then, the received reflected signal is added or subtracted from the correction value to obtain a corrected reflected signal. The purpose of the correction is to correct the influence of environmental factors on the reflected signal to improve the accuracy and stability of the measurement results.
S370，根据修正反射信号，确定当前测量的眼睛为左眼或右眼。S370: Determine whether the eye currently being measured is the left eye or the right eye according to the corrected reflection signal.
可选地，在本申请一种可能的实现方式中，当发射器照射面部，并在面部反射之后，可以修正正常测量时接收器接收到的反射信号强度，得到信号增量或者信号减量，使得到的测量结果更加准确和保证测量的稳定性。Optionally, in a possible implementation of the present application, when the transmitter illuminates the face and after reflection from the face, the reflected signal strength received by the receiver during normal measurement can be corrected to obtain a signal increment or signal decrement, thereby making the obtained measurement result more accurate and ensuring the stability of the measurement.
在这些可选的实施例中，通过对接收到的反射信号进行修正，可以校正环境因素对信号强度的影响。这包括环境光的干扰、表面反射率的变化以及其他因素对信号强度的扰动。并且通过与预设信号参考标准进行比较，可以消除系统误差和环境变化对信号强度的影响，从而获得更稳定和可靠的测量结果。In these optional embodiments, by correcting the received reflected signal, the effect of environmental factors on the signal strength can be corrected. This includes interference from ambient light, changes in surface reflectivity, and disturbances to the signal strength caused by other factors. And by comparing with a preset signal reference standard, the effect of system errors and environmental changes on the signal strength can be eliminated, thereby obtaining a more stable and reliable measurement result.
以下针对本申请第三部分的测试信号为第二测试信号的情况，第二测试信号带有编码。The following is a case where the test signal in the third part of the present application is the second test signal, and the second test signal is coded.
在一实施例中，测试信号为第二测试信号，上述步骤100具体可以执行如下步骤：In one embodiment, the test signal is a second test signal, and the above step 100 may specifically perform the following steps:
S120，发送测试编码信号并调整为朝向预设角度范围，测试信号包括测试编码信号。S120, sending a test coded signal and adjusting to a direction within a preset angle range, the test signal including a test coded signal.
可选地，在本申请一种可能的实现方式中，在实际测量中，为了提高稳定性，可以采用n(n≥2)次测量的方式，将第二测试信号设为数字信号的逻辑“1”和逻辑“0”，通过数字编码的方式，编码测试信号，例如测试编码信号可以是编码“1”，需要说明的是，编码的具体值可以根据用户需要进行设置，本申请仅示例性的进行说明。Optionally, in a possible implementation of the present application, in actual measurement, in order to improve stability, n (n≥2) measurements can be adopted, and the second test signal is set to the logic "1" and logic "0" of the digital signal. The test signal is encoded by digital coding. For example, the test coding signal can be coded "1". It should be noted that the specific value of the code can be set according to user needs, and the present application is only explained as an example.
在一实施例中，测试信号为第二测试信号，上述步骤200具体可以执行如下步骤：In one embodiment, the test signal is a second test signal, and the above step 200 may specifically perform the following steps:
S210，接收第二测试信号反射回的反射信号，反射信号包括反射编码信号。S210, receiving a reflected signal reflected from the second test signal, where the reflected signal includes a reflected coded signal.
可选地，在本申请实施例中，接收器用于记录和检测从面部反射回的光信号，并将其转化为电信号或数字信号。随后可以通过信号处理算法、解码器从接收到的信号中提取编码信号，需要说明的是提取编码信号可能涉及滤波、噪声消除、解调和解码等步骤。随后根据编码方案和预设的解码算法对提取的编码信号进行分析和解释，提取出反射编码信号的编码值。Optionally, in an embodiment of the present application, the receiver is used to record and detect the light signal reflected from the face and convert it into an electrical signal or a digital signal. The coded signal can then be extracted from the received signal through a signal processing algorithm and a decoder. It should be noted that the extraction of the coded signal may involve steps such as filtering, noise elimination, demodulation and decoding. The extracted coded signal is then analyzed and interpreted according to the coding scheme and the preset decoding algorithm to extract the coded value of the reflected coded signal.
在一实施例中，上述步骤300具体可以执行如下步骤：In one embodiment, the above step 300 may specifically perform the following steps:
S301，获取反射编码信号的解码值；S301, obtaining a decoded value of a reflected coded signal;
S302，比较解码值和测试编码信号/第二测试信号的编码值之间的异同关系，得到反射编码信号的误码率，误码率用于指示解码值和编码值之间的相异程度。S302, comparing the similarities and differences between the decoded value and the coding value of the test coding signal/the second test signal, and obtaining a bit error rate of the reflected coding signal, where the bit error rate is used to indicate the degree of difference between the decoded value and the coding value.
可选地，以上述测试编码信号为编码“1”为例进行说明，如果发射测试编码信号被有效遮挡，那么反射回来的反射编码信号的解码值即为1，若没有被有效遮挡，则不为1。容易理解的是，本申请可以通过对反射编码信号进行滤波、解调获得反射编码信号对应的解码值。Optionally, taking the above-mentioned test coded signal as coded "1" as an example for explanation, if the transmitted test coded signal is effectively blocked, then the decoded value of the reflected reflected coded signal is 1, and if it is not effectively blocked, it is not 1. It is easy to understand that the present application can obtain the decoded value corresponding to the reflected coded signal by filtering and demodulating the reflected coded signal.
可选地，在本申请实施例中，要获取反射编码信号的解码值，需要进行解码操作。解码的具体方法取决于所使用的编码方案。例如可以使用解码算法、查找编码表或使用相关的解码器等解码方式，将反射编码信号转换为对应的解码值。Optionally, in an embodiment of the present application, to obtain a decoded value of a reflected coded signal, a decoding operation needs to be performed. The specific method of decoding depends on the coding scheme used. For example, a decoding method such as a decoding algorithm, a coding table lookup, or a related decoder can be used to convert the reflected coded signal into a corresponding decoded value.
可选地，在本申请一种可能的实现方式中，可以将解码值与测试编码信号的编码值进行比较，逐位比较它们的取值，即将解码值和编码值逐位进行异或运算，得到一个结果序列。随后统计结果序列的误码的数量。并根据误码数量和总编码数量计算误码率。误码率通常以百分比或小数形式表示，表示解码值和编码值之间的相异程度。Optionally, in a possible implementation of the present application, the decoded value can be compared with the coded value of the test coded signal, and their values can be compared bit by bit, that is, the decoded value and the coded value are XORed bit by bit to obtain a result sequence. Then, the number of bit errors in the result sequence is counted. And the bit error rate is calculated based on the number of bit errors and the total number of codes. The bit error rate is usually expressed in percentage or decimal form, indicating the degree of difference between the decoded value and the coded value.
S303，通过比较误码率与第三预设阈值，确定当前测量的眼睛为左眼或右眼。S303, determining whether the currently measured eye is the left eye or the right eye by comparing the bit error rate with a third preset threshold.
例如，在本申请一种可能的实现方式中，以上述测试编码信号为编码“1”为例进行说明，通过数字编码的方式，采用误码率来识别当前测量的眼睛为左眼还是右眼。For example, in a possible implementation of the present application, the above-mentioned test coding signal is coded "1" as an example for explanation, and the bit error rate is used through digital coding to identify whether the currently measured eye is the left eye or the right eye.
在本申请实施例中，用编码的方式，发射器发射1，在接收端会得到相应的反射编码信号，并对对应的反射编码信号进行滤波解调得到对应反射编码信号的解码值，如果有比较强的遮挡，发射1就能接收到1，发射0就能接收到0，但是如果遮挡并不是有效遮挡，可能会出现误码率，由此能够通过误码率进行识别左右眼。In the embodiment of the present application, the transmitter transmits 1 in a coded manner, and the corresponding reflected coded signal is obtained at the receiving end, and the corresponding reflected coded signal is filtered and demodulated to obtain the decoding value of the corresponding reflected coded signal. If there is a relatively strong occlusion, 1 can be received when 1 is transmitted, and 0 can be received when 0 is transmitted. However, if the occlusion is not effective, a bit error rate may occur, and the left and right eyes can be identified by the bit error rate.
例如，在本申请实施例中，如图8所示，如果误码率小于第三预设阈值，即代表得到的反射编码信号的第二解码值是测试编码信号编码值，即测试编码信号被有效遮挡，表示测试编码信号是被人脸遮挡的，由于测试编码信号被调整为朝向预设角度范围，即接收器3的右侧方向，大部分射向人脸而反射，被接收器3接收，因此可以判断出当前测量的眼睛即为左眼。For example, in an embodiment of the present application, as shown in Figure 8, if the bit error rate is less than the third preset threshold, it means that the second decoded value of the reflected coded signal is the test coded signal coding value, that is, the test coded signal is effectively blocked, indicating that the test coded signal is blocked by the face. Since the test coded signal is adjusted to face the preset angle range, that is, the right side of the receiver 3, most of it is reflected toward the face and received by the receiver 3. Therefore, it can be determined that the eye currently measured is the left eye.
再如，在本申请实施例中，如图9所示，如果误码率大于第三预设阈值，即代表得到的反射编码信号的解码值不是测试编码信号的编码值，即测试编码信号没有被有效遮挡，表示第一编码信号是穿过人脸面部旁侧射出的，由于测试编码信号被调整为朝向预设角度范围，即接收器3的右侧方向，因此可以判断出当前测量的眼睛为右眼。For another example, in an embodiment of the present application, as shown in FIG9 , if the bit error rate is greater than the third preset threshold, it means that the decoded value of the reflected coded signal is not the coded value of the test coded signal, that is, the test coded signal is not effectively blocked, indicating that the first coded signal is emitted through the side of the human face. Since the test coded signal is adjusted to face the preset angle range, that is, the right side of the receiver 3, it can be determined that the currently measured eye is the right eye.
总结上述实施例，假设发射器4位于接收器3的第一侧的方向，当测试信号为第二测试信号时，第二测试信号带有编码，通过将误码率与第三预设阈值进行比较，当误码率大于第三预设阈值时，判断被测眼为第一侧的眼睛，当误码率小于第三预设阈值时，判断被测眼为与第一侧反向的眼睛。在这些可选的实施例中，通过设置编码信号，使得测量的结果更加直观，无需复杂的算法，节省了左右眼识别的成本。To summarize the above embodiments, assuming that the transmitter 4 is located in the direction of the first side of the receiver 3, when the test signal is the second test signal, the second test signal is coded, and by comparing the bit error rate with the third preset threshold, when the bit error rate is greater than the third preset threshold, the eye under test is judged to be the eye on the first side, and when the bit error rate is less than the third preset threshold, the eye under test is judged to be the eye opposite to the first side. In these optional embodiments, by setting the coded signal, the measurement result is more intuitive, no complex algorithm is required, and the cost of left and right eye recognition is saved.
可选地，在本申请实施例中，可以根据头型训练模型训练得到发射器发射测试信号的预设角度，其中，该头型训练模型可以根据训练集训练得到，训练集包括多个人体头型样本图像，通过训练集不断的训练，以此能够得到测试信号的发射角度。Optionally, in an embodiment of the present application, a preset angle at which the transmitter transmits a test signal can be obtained based on a head shape training model, wherein the head shape training model can be obtained based on a training set, the training set includes multiple human head shape sample images, and the transmission angle of the test signal can be obtained by continuous training with the training set.
可选地，如图8和图9所示，在本申请一种可能的实现方式中，眼压测量装置被放置于确定的测量眼球8/9正前方，且对齐居中于被测眼睛8a/8b的角膜中心，保持探针121和被测眼睛8a/8b的角膜距离4-10mm，按下测量键2时，探针121会撞击测量眼睛8a/8b的中心并且反弹，随后探针121再反弹到设备中，然后启动接收器3标定环境光线，作为每次测试前的基准参数校核，然后通过发射器4有序的发射5-30ms时间测试信号5，通过接收器3接收每次反射信号6的光量，通过软件设定发射器4发射测试信号5的反射光线大小比较来判断被测眼睛左右位置。Optionally, as shown in Figures 8 and 9, in a possible implementation of the present application, the intraocular pressure measuring device is placed in front of the determined measuring eye 8/9 and aligned and centered on the corneal center of the measured eye 8a/8b, and the distance between the probe 121 and the cornea of the measured eye 8a/8b is maintained at 4-10mm. When the measurement key 2 is pressed, the probe 121 will hit the center of the measuring eye 8a/8b and bounce back, and then the probe 121 will bounce back into the device, and then the receiver 3 is started to calibrate the ambient light as a reference parameter check before each test, and then the transmitter 4 sequentially emits a 5-30ms time test signal 5, and the receiver 3 receives the amount of light of each reflected signal 6, and the software sets the size of the reflected light of the test signal 5 emitted by the transmitter 4 to judge the left and right positions of the measured eye.
第四部分：Part 4:
本申请第四部分的一些实施例还提供一种左右眼识别方法，应用于前述第一部分的眼压测量装置，如图1至图4所示，眼压测量装置包括控制器11、发射器4、第一接收器3a和第二接收器3b、以及探针121，第一部分的眼压测量装置中，发射器4设置在第一接收器3a和第二接收器3b之间，该方法包括：Some embodiments of the fourth part of the present application further provide a left-right eye recognition method, which is applied to the intraocular pressure measurement device of the first part. As shown in FIGS. 1 to 4 , the intraocular pressure measurement device includes a controller 11, a transmitter 4, a first receiver 3a and a second receiver 3b, and a probe 121. In the intraocular pressure measurement device of the first part, the transmitter 4 is arranged between the first receiver 3a and the second receiver 3b. The method includes:
S10，在探针121与被测眼相对的情况下，控制发射器4发射测试信号并将测试信号调整为朝向预设角度范围，测试信号包括第一测试信号和/或第二测试信号，第一测试信号不具有编码，第二测试信号具有初始编码值；S10, when the probe 121 is opposite to the eye to be tested, controlling the transmitter 4 to transmit a test signal and adjusting the test signal to be oriented toward a preset angle range, the test signal comprising a first test signal and/or a second test signal, the first test signal having no coding, and the second test signal having an initial coding value;
S20，控制第一接收器3a接收测试信号的第一反射信号，控制第二接收器3b接收测试信号的第二反射信号；S20, controlling the first receiver 3a to receive the first reflected signal of the test signal, and controlling the second receiver 3b to receive the second reflected signal of the test signal;
S30，在发射器发射第一测试信号的情况下，通过比较第一反射信号的第一信号强度与第二反射信号的第二信号强度，或者根据第一反射信号的第一信号强度和第二反射信号的第二信号强度之间的差值，与预设阈值的比较，确定当前测量的眼睛为左眼或右眼；或者，S30, when the transmitter transmits the first test signal, by comparing the first signal strength of the first reflected signal with the second signal strength of the second reflected signal, or by comparing the difference between the first signal strength of the first reflected signal and the second signal strength of the second reflected signal with a preset threshold, determining whether the currently measured eye is the left eye or the right eye; or
在发射器发射第二测试信号的情况下，将初始编码值分别与第一反射信号的第一编码值和第二反射信号的第二编码值比较，确定当前测量的眼睛为左眼或右眼。When the transmitter transmits the second test signal, the initial coding value is compared with the first coding value of the first reflection signal and the second coding value of the second reflection signal to determine whether the currently measured eye is the left eye or the right eye.
通过第一接收器3a和第二接收器3b，能够分别在不同的位置接收到测试信号反射回的第一反射信号和第二反射信号，进而使得控制器11能够根据第一反射信号和第二反射信号之间的差异，确定当前测量的眼睛为左眼还是右眼，从而使得眼压测量装置能够自动识别左右眼，提高眼压测量装置自动识别左右眼的可靠性和准确率。Through the first receiver 3a and the second receiver 3b, the first reflection signal and the second reflection signal reflected by the test signal can be received at different positions respectively, so that the controller 11 can determine whether the currently measured eye is the left eye or the right eye according to the difference between the first reflection signal and the second reflection signal, so that the intraocular pressure measurement device can automatically identify the left and right eyes, thereby improving the reliability and accuracy of the automatic identification of the left and right eyes by the intraocular pressure measurement device.
在一些实施例中，根据第一反射信号的信号强度与第二反射信号的信号强度的差值，将该差值与预设阈值之间的比较，确定被测眼为左眼或右眼。In some embodiments, based on the difference between the signal strength of the first reflected signal and the signal strength of the second reflected signal, the difference is compared with a preset threshold to determine whether the detected eye is the left eye or the right eye.
在另一些实施例中，根据第一反射信号的信号强度与第二反射信号的信号强度的比较，确定被测眼为左眼或右眼。In some other embodiments, it is determined whether the eye being measured is the left eye or the right eye based on a comparison between the signal strength of the first reflection signal and the signal strength of the second reflection signal.
在一些实施例中，根据第一反射信号的第一编码值、第二反射信号的第二编码值，分别与初始编码值比较，确定被测眼为左眼或右眼。In some embodiments, the first coding value of the first reflection signal and the second coding value of the second reflection signal are respectively compared with the initial coding value to determine whether the detected eye is the left eye or the right eye.
在另一些实施例中，根据第一反射信号的误码率、第二反射信号的第二编码值，分别于编码的误码率阈值比较，确定左右眼。In some other embodiments, the left eye and the right eye are determined based on the bit error rate of the first reflection signal and the second coding value of the second reflection signal, which are compared with the coding bit error rate thresholds respectively.
本申请第三方面：The third aspect of this application:
本申请第二方面的第三部分、第四部分的左右眼识别方法通过硬件结构实现。图10示出了本申请实施例提供的眼压测量设备的硬件结构示意图。该硬件结构可适用于第一部分、第二部分的眼压测量设备，该硬件结构包括处理器501以及存储有程序指令的存储器502。The left and right eye recognition methods of the third and fourth parts of the second aspect of the present application are implemented by hardware structures. Figure 10 shows a schematic diagram of the hardware structure of the intraocular pressure measurement device provided by an embodiment of the present application. The hardware structure can be applied to the intraocular pressure measurement devices of the first and second parts, and the hardware structure includes a processor 501 and a memory 502 storing program instructions.
处理器501执行程序时实现上述任意各个方法实施例中的步骤。When the processor 501 executes the program, the steps in any of the above method embodiments are implemented.
示例性的，程序可以被分割成一个或多个模块/单元，一个或者多个模块/单元被存储在存储器502中，并由处理器501执行，以完成本申请。一个或多个模块/单元可以是能够完成特定功能的一系列程序指令段，该指令段用于描述程序在设备中的执行过程。Exemplarily, the program may be divided into one or more modules/units, one or more modules/units are stored in the memory 502, and executed by the processor 501 to complete the present application. One or more modules/units may be a series of program instruction segments capable of completing a specific function, and the instruction segments are used to describe the execution process of the program in the device.
具体地，上述处理器501可以包括中央处理器(CPU)，或者特定集成电路(Application Specific Integrated Circuit，ASIC)，或者可以被配置成实施本申请实施例的一个或多个集成电路。存储器502可以包括用于数据或指令的大容量存储器。举例来说而非限制，存储器502可包括硬盘驱动器(Hard Disk Drive，HDD)、软盘驱动器、闪存、光盘、磁光盘、磁带或通用串行总线(Universal Serial Bus，USB)驱动器或者两个或更多个以上这些的组合。在合适的情况下，存储器502可包括可移除或不可移除(或固定)的介质。在合适的情况下，存储器502可在综合网关容灾设备的内部或外部。在特定实施例中，存储器502是非易失性固态存储器。存储器可包括只读存储器(ROM)，随机存取存储器(RAM)，磁盘存储介质设备，光存储介质设备，闪存设备，电气、光学或其他物理/有形的存储器存储设备。因此，通常，存储器包括一个或多个编码有包括计算机可执行指令的软件的有形(非暂态)可读存储介质(例如，存储器设备)，并且当该软件被执行(例如，由一个或多个处理器)时，其可操作来执行参考根据本公开的一方面的方法所描述的操作。处理器501通过读取并执行存储器502中存储的程序指令，以实现上述实施例中的任意一种方法。在一个示例中，电子设备还可包括通信接口503和总线510。其中，处理器501、存储器502、通信接口503通过总线510连接并完成相互间的通信。通信接口503，主要用于实现本申请实施例中各模块、装置、单元和/或设备之间的通信。总线510包括硬件、软件或两者，将在线数据流量计费设备的部件彼此耦接在一起。举例来说而非限制，总线可包括加速图形端口(AGP)或其他图形总线、增强工业标准架构(EISA)总线、前端总线(FSB)、超传输(HT)互连、工业标准架构(ISA)总线、无限带宽互连、低引脚数(LPC)总线、存储器总线、微信道架构(MCA)总线、外围组件互连(PCI)总线、PCI-Express(PCI-X)总线、串行高级技术附件(SATA)总线、视频电子标准协会局部(VLB)总线或其他合适的总线或者两个或更多个以上这些的组合。在合适的情况下，总线510可包括一个或多个总线。尽管本申请实施例描述和示出了特定的总线，但本申请考虑任何合适的总线或互连。Specifically, the processor 501 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application. The memory 502 may include a large-capacity memory for data or instructions. By way of example and not limitation, the memory 502 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 502 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 502 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 502 is a non-volatile solid-state memory. The memory may include a read-only memory (ROM), a random access memory (RAM), a disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical, or other physical/tangible memory storage device. Therefore, typically, the memory includes one or more tangible (non-transitory) readable storage media (e.g., memory devices) encoded with software including computer executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present disclosure. The processor 501 implements any one of the methods in the above embodiments by reading and executing program instructions stored in the memory 502. In one example, the electronic device may further include a communication interface 503 and a bus 510. Among them, the processor 501, the memory 502, and the communication interface 503 are connected through the bus 510 and complete communication with each other. The communication interface 503 is mainly used to implement communication between the modules, devices, units and/or devices in the embodiments of the present application. The bus 510 includes hardware, software, or both, coupling the components of the online data traffic billing device to each other. By way of example and not limitation, the bus may include an accelerated graphics port (AGP) or other graphics bus, an enhanced industry standard architecture (EISA) bus, a front side bus (FSB), a hypertransport (HT) interconnect, an industry standard architecture (ISA) bus, an infinite bandwidth interconnect, a low pin count (LPC) bus, a memory bus, a micro channel architecture (MCA) bus, a peripheral component interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a serial advanced technology attachment (SATA) bus, a video electronics standard association local (VLB) bus or other suitable bus or a combination of two or more of these. Where appropriate, bus 510 may include one or more buses. Although the present application embodiment describes and illustrates a specific bus, the present application contemplates any suitable bus or interconnect.
本申请实施例可提供一种存储介质来实现。该存储介质上存储有程序指令；该程序指令被处理器执行时实现上述实施例中的任意一种方法。The embodiment of the present application can be implemented by providing a storage medium having program instructions stored thereon; when the program instructions are executed by a processor, any one of the methods in the above embodiments is implemented.
本申请实施例另提供了一种芯片，芯片包括处理器和通信接口，通信接口和处理器耦合，处理器用于运行程序或指令，实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions, implement the various processes of the above method embodiment, and can achieve the same technical effect, to avoid repetition, it is not repeated here. It should be understood that the chip mentioned in the embodiment of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
本申请实施例提供一种计算机程序产品，该程序产品被存储在存储介质中，该程序产品被至少一个处理器执行以实现如上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
需要明确的是，本申请并不局限于上文所描述并在图中示出的特定配置和处理。为了简明起见，这里省略了对已知方法的详细描述。在上述实施例中，描述和示出了若干具体的步骤作为示例。但是，本申请的方法过程并不限于所描述和示出的具体步骤，本领域的技术人员可以在领会本申请的精神后，作出各种改变、修改和添加，或者改变步骤之间的顺序。It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.
还需要说明的是，本申请中提及的示例性实施例，基于一系列的步骤或者装置描述一些方法或系统。但是，本申请不局限于上述步骤的顺序，也就是说，可以按照实施例中提及的顺序执行步骤，也可以不同于实施例中的顺序，或者若干步骤同时执行。It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310723043.1 | 2023-06-16 | ||
| CN202310723043.1ACN116778565A (en) | 2023-06-16 | 2023-06-16 | Left and right eye recognition methods, devices, equipment and media |
| CN202321941786.8 | 2023-07-21 | ||
| CN202321941786.8UCN221577693U (en) | 2023-07-21 | 2023-07-21 | Intraocular pressure measurement device |
| Publication Number | Publication Date |
|---|---|
| WO2024255902A1true WO2024255902A1 (en) | 2024-12-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2024/099537PendingWO2024255902A1 (en) | 2023-06-16 | 2024-06-17 | Intraocular pressure measurement apparatus, method for identifying left and right eyes, and storage medium |
| Country | Link |
|---|---|
| WO (1) | WO2024255902A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120604971A (en)* | 2025-08-08 | 2025-09-09 | 浙江佳目医疗科技有限公司 | System for be applied to ophthalmology equipment's automatic identification inspector left and right eyes |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862207A (en)* | 2009-03-31 | 2010-10-20 | 株式会社尼德克 | Non-contact ultrasonic tonometer |
| CN103889316A (en)* | 2011-09-06 | 2014-06-25 | 伊卡尔芬兰有限公司 | Ophthalmic device and method for measuring eyes |
| CN109508629A (en)* | 2018-09-26 | 2019-03-22 | 深圳市新致维科技有限公司 | A kind of recognition methods of head pose, identifying system and computer memory device |
| CN116778565A (en)* | 2023-06-16 | 2023-09-19 | 海思视康(上海)生物医学科技有限公司 | Left and right eye recognition methods, devices, equipment and media |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862207A (en)* | 2009-03-31 | 2010-10-20 | 株式会社尼德克 | Non-contact ultrasonic tonometer |
| CN103889316A (en)* | 2011-09-06 | 2014-06-25 | 伊卡尔芬兰有限公司 | Ophthalmic device and method for measuring eyes |
| CN109508629A (en)* | 2018-09-26 | 2019-03-22 | 深圳市新致维科技有限公司 | A kind of recognition methods of head pose, identifying system and computer memory device |
| CN116778565A (en)* | 2023-06-16 | 2023-09-19 | 海思视康(上海)生物医学科技有限公司 | Left and right eye recognition methods, devices, equipment and media |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120604971A (en)* | 2025-08-08 | 2025-09-09 | 浙江佳目医疗科技有限公司 | System for be applied to ophthalmology equipment's automatic identification inspector left and right eyes |
| Publication | Publication Date | Title |
|---|---|---|
| WO2024255902A1 (en) | Intraocular pressure measurement apparatus, method for identifying left and right eyes, and storage medium | |
| CN105006105B (en) | Eye state identification device and eye state identification method based on infrared detection | |
| CN116778565A (en) | Left and right eye recognition methods, devices, equipment and media | |
| JP6270724B2 (en) | Ophthalmic device and method for measuring an eye | |
| RU2015124139A (en) | DEVICE AND METHOD FOR EXTRACTING PHYSIOLOGICAL INFORMATION | |
| CN104490403A (en) | Non-invasive blood glucose measurement system and measurement method based on spectrum technology | |
| KR100235170B1 (en) | A device and process for generating and measuring the shape of an acoustic reflectance curve of an ear | |
| US20120229800A1 (en) | Pulse oximeter test instruments and methods | |
| US20170112448A1 (en) | Photoelectric type pulse signal measuring method and apparatus | |
| CN117849179A (en) | Concrete structure damage detection method | |
| WO2024164800A1 (en) | Method and apparatus for identifying left and right eyes, and device | |
| CN103654735B (en) | Ear temperature measurement device and find the method for most Gao Erwen | |
| CN221577693U (en) | Intraocular pressure measurement device | |
| TWI584786B (en) | Method for sensing physiological feature | |
| CN111588385B (en) | Blood oxygen saturation measuring method and device, storage medium and electronic equipment | |
| CN108354614A (en) | Blood glucose detection method, blood glucose detection correction method, and blood glucose detection device | |
| WO2021103008A1 (en) | Adaptive biological feature detection method and apparatus, and electronic device | |
| CN109060313B (en) | Detection method and detection system of laser projector | |
| CN114532978B (en) | Signal quality detection method and signal detection device | |
| KR102378300B1 (en) | X-ray device | |
| KR100679106B1 (en) | Apparatus and method for measuring body fat using near infrared ray | |
| JP4393461B2 (en) | Biological light measurement apparatus and method | |
| CN106551687A (en) | Heart rate testing method, user terminal, detection device and system | |
| JP6989192B1 (en) | Arteriosclerosis measuring device, arteriosclerosis measuring program, and how to operate the arteriosclerosis measuring device | |
| CN204884069U (en) | Eyes state recognition device based on infrared detection |
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | Ref document number:24822849 Country of ref document:EP Kind code of ref document:A1 |