技术领域technical field
本发明涉及电路开关技术领域，尤其涉及特别是涉及一种非接触式招手控制开关。The invention relates to the technical field of circuit switches, in particular to a non-contact beckoning control switch.
背景技术Background technique
传统电路开关通常采用按钮、刀闸式的机械接触式开关。通过按下或搬动操作手柄来实现电路的切断和闭合。这种开关使用方法一般基于人为直接的手动动作。电路开关的动合往往操作人的力量、知识、环境等紧密相关。电路开关的寿命也因人为力量、机械磨碎、电化学作用等影响，往往大大减小。对于潮湿环境、手是湿的、绝缘措施不到位等情况，人为直接操作开关往往会到来安全隐患。近年来，随着电子技术的发展，声控开关、红外开关、雷达开关等非接触式电路开关也逐渐得到普及应用。虽然实现了人和开关的电气隔离，但是这些非接触式开关往往不能表达丰富的电路控制效果的,人性化设计不够好。Traditional circuit switches usually use push button and knife switch mechanical contact switches. The circuit is cut and closed by pressing or moving the operating handle. This switch usage method is generally based on human direct manual action. The movement and closure of circuit switches are often closely related to the strength, knowledge, and environment of the operator. The life of the circuit switch is also often greatly reduced due to the influence of human force, mechanical grinding, electrochemical action, etc. For conditions such as humid environment, wet hands, and inadequate insulation measures, human direct operation of the switch often leads to potential safety hazards. In recent years, with the development of electronic technology, non-contact circuit switches such as voice-activated switches, infrared switches, and radar switches have gradually been popularized and used. Although the electrical isolation between people and switches is realized, these non-contact switches often cannot express rich circuit control effects, and the humanized design is not good enough.
发明内容Contents of the invention
本发明的目的在于解决上述现有技术存在的缺陷，提供一种非接触式招手控制开关。The object of the present invention is to solve the above-mentioned defects in the prior art, and provide a non-contact beckoning control switch.
一种非接触式招手控制开关，包括：A non-contact beckoning control switch, comprising:
红外发射头，用于间隙性发出红外光线到被测对象；Infrared emitting head, used to intermittently emit infrared light to the measured object;
红外接收头，用于接收被测对象的漫反射回来的红外光线信号；The infrared receiving head is used to receive the infrared light signal diffusely reflected back from the measured object;
招手动作检测电路，用于控制红外发射头信号、控制红外接收头接收信号，并将接收到的信号进行分析处理，产生开关控制信号送往开关；The beckoning motion detection circuit is used to control the signal of the infrared transmitter, control the signal received by the infrared receiver, analyze and process the received signal, and generate a switch control signal and send it to the switch;
开关，用于根据所述控制信号实施电路通断控制行为；a switch, configured to implement circuit on-off control behavior according to the control signal;
在所述红外发射头上设置有以凹面镜构成的光学镜头；An optical lens composed of a concave mirror is arranged on the infrared emitting head;
在所述红外接收头上设置有以凸透镜构成的光学镜头。An optical lens composed of a convex lens is arranged on the infrared receiving head.
进一步地，如上所述的非接触式招手控制开关，所述招手动作检测电路包括：Further, in the non-contact waving control switch described above, the waving motion detection circuit includes:
信号调理模块，用于完成对红外接收头接收的信号的低通滤波、信号放大；The signal conditioning module is used to complete the low-pass filtering and signal amplification of the signal received by the infrared receiver;
A/D转换器，用于完成对放大的信号离散变换成数字信号；The A/D converter is used to complete the discrete transformation of the amplified signal into a digital signal;
微控制器，用于对所述数字信号的特征提取，比对手势信号参数特征，输出控制信号，同时，还产生用于驱动控制红外发射头产生红外光线的信号。The micro-controller is used to extract the features of the digital signal, compare the parameters of the gesture signal, output the control signal, and generate a signal for driving and controlling the infrared emitting head to generate infrared light.
有益效果：Beneficial effect:
本发明提供的非接触式招手控制开关，由于红外发射头和红外接收头各增设一个光学镜头，用于增强感测距离和招手动作的分辨率，可以达到30cm以上。The non-contact waving control switch provided by the present invention can reach more than 30cm because the infrared emitting head and the infrared receiving head each add an optical lens to enhance the sensing distance and the resolution of the waving action.
附图说明Description of drawings
图1为本发明非接触式招手控制开关结构框图；Fig. 1 is a structural block diagram of a non-contact beckoning control switch of the present invention;
图2为本发明招手动作检测电路结构框图。Fig. 2 is a structural block diagram of the waving motion detection circuit of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面本发明中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
如图1所示，本发明提供的一种招手开关装置，包括：光学镜头1,红外接收头2,红外发射头3,招手动作检测电路4和开关5构成。招手动作是本装置的被测对象，同时也是本装置的输入命令。红外发射头3由手势检测电路4发出的信号B驱动，间隙性发出红外光线信号C到被测对象。由红外接收头2接收被测对象的漫反射回来的红外光线信号D，并产生原始感知电信号A送到招手动作检测电路4的输入端。经过检测电路4处理后，产生开关控制信号E送往开关5实施电路通断控制行为。As shown in FIG. 1 , a beckoning switch device provided by the present invention includes: an optical lens 1 , an infrared receiving head 2 , an infrared emitting head 3 , a beckoning motion detection circuit 4 and a switch 5 . The beckoning action is the measured object of the device, and it is also the input command of the device. The infrared emitting head 3 is driven by the signal B sent by the gesture detection circuit 4, and intermittently emits an infrared light signal C to the measured object. The infrared light signal D diffusely reflected back from the measured object is received by the infrared receiving head 2 , and the original sensing electric signal A is generated and sent to the input end of the waving motion detection circuit 4 . After being processed by the detection circuit 4, a switch control signal E is generated and sent to the switch 5 to implement circuit on-off control behavior.
所述的招手动作是作为本装置的输入信号存在的。招手动作的手势样式可以不限。The waving action exists as an input signal of the device. The gesture style of the waving action is not limited.
所述的红外发射头3和红外接收头2是为非接触式红外检测措施提供的。红外发射头3产生主动红外光线信号C，由红外接收头2接收漫反射射回来的红外光线信号D，并同时产生被测原始电信号A提供给招手动作检测电路4。The infrared emitting head 3 and the infrared receiving head 2 are provided for non-contact infrared detection measures. The infrared emitting head 3 generates an active infrared light signal C, and the infrared receiving head 2 receives the diffusely reflected infrared light signal D, and at the same time generates a measured original electrical signal A to provide to the beckoning motion detection circuit 4 .
所述的检测电路4是将原始电信号A进行信号频率和跳变次数参数计算，分析有无招手动作，并给出控制信号E。同时，它还产生信号B用于驱动控制红外发射头3产生红外光线。The detection circuit 4 calculates the signal frequency and jump times parameters of the original electrical signal A, analyzes whether there is a beckoning action, and gives a control signal E. At the same time, it also generates a signal B for driving and controlling the infrared emitting head 3 to generate infrared light.
所述的开关5用于实现强弱电隔离，不限电子开关或继电器型开关。The switch 5 is used to realize the isolation of strong and weak currents, and is not limited to electronic switches or relay switches.
本装置的工作原理为：当本发明装置上电完成后，在信号处理器的控制下，驱动红外发射头3不断产生红外光线信号C。当招手动作发生于红外光线信号C环境下时(距离红外发射头3或红外接收头2大于等于5cm且小于等于30cm)，由于招手动作存在，发生红外光的遮挡和透过现象，致使红外光漫反射现象存在间断性。这种间断性的光信号D被红外接收头2捕捉到后，产生间隙性的原始电信号A。由于人类招手时，招手周期一般是一定的(因人而异)，所以原始电信号A具有一定的规律。当检测电路4接收到原始信号时，进行信号频率和跳变次数参数计算，当超过某一数值时即可确定招手动作的存在有无。同时，根据发出控制信号E驱动开关5，执行开关动作命令。The working principle of the device is: after the device of the present invention is powered on, under the control of the signal processor, the infrared emitting head 3 is driven to continuously generate the infrared light signal C. When the waving action occurs in the environment of infrared light signal C (the distance from the infrared emitting head 3 or the infrared receiving head 2 is greater than or equal to 5cm and less than or equal to 30cm), due to the presence of the waving action, infrared light is blocked and transmitted, resulting in infrared light There is a discontinuity in the diffuse reflection phenomenon. After the intermittent optical signal D is captured by the infrared receiving head 2, an intermittent original electrical signal A is generated. Because when human beings wave, the wave cycle is generally certain (varies from person to person), so the original electrical signal A has certain rules. When the detection circuit 4 receives the original signal, it calculates the parameters of the signal frequency and the number of jumps, and when it exceeds a certain value, it can determine whether there is a beckoning action. At the same time, the switch 5 is driven according to the control signal E to execute the switch action command.
为了在较近距离(>＝30cm)时，本装置更好工作，除了使红外发射头3和红外接收头2工作在脉冲调制(一种常用于提高红外发射功率，增加发射距离的方法)状态外，特增设了光学镜头在红外发射头3和红外接收头2上。In order to make this device work better at a relatively short distance (>=30cm), in addition to making the infrared transmitter 3 and the infrared receiver 2 work in the state of pulse modulation (a method commonly used to increase the infrared transmission power and increase the transmission distance) In addition, an optical lens is specially added on the infrared emitting head 3 and the infrared receiving head 2.
红外发射头3上的光学镜头是个凹面镜，红外发射头3内的红外发光管安放在凹透镜焦点上，这样从凹面镜焦点射向凹面镜的光将平行射出形成一根小光柱(即红外光线信号C)，其具有足够的能量和直线性。The optical lens on the infrared emitting head 3 is a concave mirror, and the infrared light-emitting tube in the infrared emitting head 3 is placed on the concave lens focus, so that the light from the concave mirror focus to the concave mirror will be parallel to form a small beam of light (ie infrared rays Signal C), which has sufficient energy and linearity.
红外接收头2上的光学镜头是个凸透镜，红外接收头2内的红外接收管安放在凸透镜焦点上，这样从远处漫反射过来红外光线D，可近似看成平行光，这种光线照射在凸透镜时，汇聚在焦点上，使得焦点上的红外接收管，获得足够的红外光能量而工作。The optical lens on the infrared receiving head 2 is a convex lens, and the infrared receiving tube in the infrared receiving head 2 is placed on the focal point of the convex lens, so that the infrared light D is diffusely reflected from a distance, which can be approximately regarded as parallel light, and this light shines on the convex lens When it converges on the focal point, the infrared receiving tube on the focal point can obtain enough infrared light energy to work.
这样一来，增设了光学镜头，使得本装置可在距离手动作>＝30cm的距离工作。In this way, an optical lens is added, so that the device can work at a distance of >=30cm from the hand movement.
所述的开关状态为通断状态，用指示灯指示。通态，指示灯亮；断态，指示灯灭。先前为通态(指示灯亮)，招手动作触发变为断态(指示灯灭)。先前为断态(指示灯灭)，招手动作触发变为通态(指示灯亮)。The state of the switch is an on-off state, which is indicated by an indicator light. On state, the indicator light is on; off state, the indicator light is off. Previously, it was in the on state (the indicator light was on), and when the waving action was triggered, it became the off state (the indicator light was off). It was in the off state (indicator light off) before, and it becomes on state (indicator light on) when the waving action is triggered.
招手动作是个重复动作，具有一定的周期频率和次数。招手动作在实施过程中，红外反射能量也周期性的被红外接收头收到，并产生周期性变化的电信号。在监测周期内，信号处理器计算招手动作的频率和信号突变次数。当频率和次数大于阀值时，触发条件成立，开关状态随即反转。否则，开关状态保持不变。所述测周期为5s～10s；监测周期时间的起始零点从电信号突变开始计算，招手动作时间的停止点是在监测周期内的电信号最后一次突变的时间点。每突变1次次数累加1，动作周期开始时，次数为0。The waving action is a repetitive action with a certain cycle frequency and times. During the implementation of the waving action, the infrared reflected energy is also periodically received by the infrared receiving head, and periodically changing electrical signals are generated. During the monitoring period, the signal processor calculates the frequency of the beckoning action and the number of signal mutations. When the frequency and times are greater than the threshold, the trigger condition is established, and the switch state is reversed immediately. Otherwise, the switch state remains unchanged. The measurement period is 5s-10s; the initial zero point of the monitoring period is calculated from the sudden change of the electrical signal, and the stop point of the beckoning action time is the time point of the last sudden change of the electrical signal within the monitoring period. The count is incremented by 1 for each mutation, and the count is 0 at the beginning of the action cycle.
触发条件为招手动作频率大于某个阀值，并且次数也大于某个阀值。The trigger condition is that the frequency of the beckoning action is greater than a certain threshold, and the number of times is also greater than a certain threshold.
如图2所示，所述的招手动作检测电路4包括信号调理模块、A/D转换器和信号处理器构成。原始信号A输入到信号调理模块，信号调理模块将原始信号A进行低通滤波，再对其放大到满足A/D转换器的适当电压范围内的信号F。信号F输入到A/D转换器，经过A/D转换后，转换为数字信号信号G，数字信号G发给信号处理器进行处理分析，得出控制信号E。As shown in FIG. 2 , the waving motion detection circuit 4 includes a signal conditioning module, an A/D converter and a signal processor. The original signal A is input to the signal conditioning module, and the signal conditioning module performs low-pass filtering on the original signal A, and then amplifies it to a signal F within an appropriate voltage range satisfying the A/D converter. The signal F is input to the A/D converter, after the A/D conversion, it is converted into a digital signal G, and the digital signal G is sent to the signal processor for processing and analysis to obtain the control signal E.
所述的信号调理模块完成对原始信号A的低通滤波、信号放大的功能。The signal conditioning module completes the functions of low-pass filtering and signal amplification of the original signal A.
所述的A/D转换器完成对信号F的离散变换功能。The A/D converter completes the discrete conversion function of the signal F.
所述的信号处理器是微控制器。它主要完成信号G的数据特征提取，比对手势信号参数特征，输出控制信号E。同时，它还产生信号B用于驱动控制红外发射头3产生红外光线。The signal processor is a microcontroller. It mainly completes the data feature extraction of the signal G, compares the parameter features of the gesture signal, and outputs the control signal E. At the same time, it also generates a signal B for driving and controlling the infrared emitting head 3 to generate infrared light.
所述红外发射头和红外接收头各增设一个光学镜头，用于增强感测距离和招手动作的分辨率，可以达到30cm以上。另外，招手动作监测电路内部除了具有信号处理器外，专门设有信号调理电路和高精度的A/D转换器。An optical lens is added to each of the infrared emitting head and the infrared receiving head to enhance the sensing distance and the resolution of the beckoning action, which can reach more than 30cm. In addition, in addition to the signal processor, the waving motion monitoring circuit is specially equipped with a signal conditioning circuit and a high-precision A/D converter.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332472.5ACN108322207A (en) | 2018-04-13 | 2018-04-13 | A kind of contactless control switch of waving |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332472.5ACN108322207A (en) | 2018-04-13 | 2018-04-13 | A kind of contactless control switch of waving |
| Publication Number | Publication Date |
|---|---|
| CN108322207Atrue CN108322207A (en) | 2018-07-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810332472.5APendingCN108322207A (en) | 2018-04-13 | 2018-04-13 | A kind of contactless control switch of waving |
| Country | Link |
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| CN (1) | CN108322207A (en) |
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