技术领域technical field
本发明实施例涉及检测领域，并且更具体地，涉及检测皮肤水分的方法和终端设备。The embodiments of the present invention relate to the field of detection, and more specifically, to a method and a terminal device for detecting skin moisture.
背景技术Background technique
皮肤中水分深刻影响皮肤的质量。缺水的皮肤会产生灰暗、斑点、皱纹等问题。目前，只能使用专业的皮肤含水量检测仪器测试皮肤水分信息。但是专业的皮肤含水量检测仪器体积大，携带不便，成本高昂。因此，一般只有专业机构，例如美容院、医院等，才会购买和维护专业的皮肤含水量检测仪器。Moisture in the skin profoundly affects the quality of the skin. Dehydrated skin can produce problems such as dullness, spots, and wrinkles. At present, only professional skin moisture detection instruments can be used to test skin moisture information. However, professional skin moisture detection instruments are bulky, inconvenient to carry, and expensive. Therefore, generally only professional institutions, such as beauty salons, hospitals, etc., will purchase and maintain professional skin moisture content testing instruments.
因此，如何满足用户可以方便快捷地获取皮肤水分信息这一需求是一个亟待解决的问题。Therefore, how to meet the needs of users to obtain skin moisture information conveniently and quickly is an urgent problem to be solved.
发明内容Contents of the invention
本申请提供一种检测皮肤水分的方法和终端设备，能够方便地检测用户的皮肤水分。The present application provides a method and a terminal device for detecting skin moisture, which can conveniently detect the skin moisture of a user.
第一方面，本申请实施例提供一种检测皮肤水分的方法，所述方法包括：终端设备在用户的皮肤同时覆盖所述终端设备的第一测量电极和第二测量电极时，确定所述第一测量电极和所述第二测量电极之间的电容值为第一电容值，其中所述第一测量电极由所述终端设备的电容式指纹检测装置包括的N个传感单元中的P个传感单元构成，其中N为大于或等于2的正整数，P大于或等于1的正整数；所述终端设备根据电容值和皮肤水分的对应关系以及所述第一电容值，确定所述用户的皮肤水分。基于上述技术方案，该终端设备可以利用现有的电容式指纹检测装置实现对皮肤水分的检测。这样，用户可以方便快捷地使用这些终端设备检测自己的皮肤水分。In the first aspect, the embodiment of the present application provides a method for detecting skin moisture, the method includes: when the user's skin covers the first measurement electrode and the second measurement electrode of the terminal device at the same time, the terminal device determines that the first measurement electrode and the second measurement electrode The capacitance value between a measurement electrode and the second measurement electrode is a first capacitance value, wherein the first measurement electrode is composed of P of the N sensing units included in the capacitive fingerprint detection device of the terminal device The sensing unit is composed of a sensing unit, where N is a positive integer greater than or equal to 2, and P is a positive integer greater than or equal to 1; the terminal device determines that the user skin moisture. Based on the above technical solution, the terminal device can use the existing capacitive fingerprint detection device to detect skin moisture. In this way, users can conveniently and quickly use these terminal devices to detect their own skin moisture.
结合第一方面，在第一方面的第一种可能的实现方式中，在所述终端设备根据电容值和皮肤水分的对应关系以及所述第一电容值，确定所述用户的皮肤水分之前，所述方法还包括：所述终端设备确定参考电容值；所述终端设备根据电容值和皮肤水分的对应关系以及所述第一电容值，确定所述用户的皮肤水分，包括：所述终端设备根据所述参考电容值和所述第一电容值，确定第二电容值；所述终端设备根据所述对应关系和所述第二电容值，将所述第二电容值对应的皮肤水分确定为所述用户的皮肤水分。上述技术方案利用参考电容值对直接确定的电容值修正可以减少外界因素对于测量精确度的影响，从而可以提高测量的精确度。With reference to the first aspect, in a first possible implementation manner of the first aspect, before the terminal device determines the skin moisture of the user according to the correspondence between the capacitance value and the skin moisture and the first capacitance value, The method further includes: the terminal device determines a reference capacitance value; the terminal device determines the user's skin moisture according to the correspondence between the capacitance value and skin moisture and the first capacitance value, including: the terminal device Determine a second capacitance value according to the reference capacitance value and the first capacitance value; the terminal device determines the skin moisture corresponding to the second capacitance value according to the correspondence relationship and the second capacitance value as The user's skin is hydrated. The above technical solution uses the reference capacitance value to correct the directly determined capacitance value, which can reduce the influence of external factors on the measurement accuracy, thereby improving the measurement accuracy.
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述终端设备确定参考电容值，包括：所述终端设备将所述第一测量电极和所述第二测量电极均未被皮肤覆盖时所述第一测量电极与所述第二测量电极之间的电容值确定为所述参考电容值。上述技术方案可以减少环境对电容值的测量影响。With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the terminal device determining the reference capacitance value includes: the terminal device combining the first measuring electrode and the The capacitance value between the first measurement electrode and the second measurement electrode when none of the second measurement electrodes are covered by skin is determined as the reference capacitance value. The above technical solution can reduce the influence of the environment on the measurement of the capacitance value.
结合第一方面或第一方面的上述任一种可能的实现方式，在第一方面的第三种可能的实现方式中，所述第二测量电极由所述N个传感单元中的Q个传感单元构成，其中Q为大于或等于1的正整数，Q与P的和小于或等于N，且所述Q个传感单元不包括所述P个传感单元中的任一个传感单元。基于上述技术方案，该终端设备可以利用现有的电容式指纹检测装置实现对皮肤水分的检测。这样，用户可以方便快捷地使用这些终端设备检测自己的皮肤水分。In combination with the first aspect or any of the above possible implementations of the first aspect, in a third possible implementation of the first aspect, the second measurement electrode is composed of Q of the N sensing units A sensing unit is formed, wherein Q is a positive integer greater than or equal to 1, the sum of Q and P is less than or equal to N, and the Q sensing units do not include any sensing unit in the P sensing units . Based on the above technical solution, the terminal device can use the existing capacitive fingerprint detection device to detect skin moisture. In this way, users can conveniently and quickly use these terminal devices to detect their own skin moisture.
结合第一方面、第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式，在第一方面的第四种可能的实现方式中，所述第二测量电极与所述电容式指纹检测装置或者该终端设备的参考地电连接。In combination with the first aspect, the first possible implementation of the first aspect, or the second possible implementation of the first aspect, in a fourth possible implementation of the first aspect, the second measurement electrode is connected to The reference ground of the capacitive fingerprint detection device or the terminal equipment is electrically connected.
结合第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述第二测量电极由独立于所述电容式指纹检测装置的至少一个传感单元构成，或者，所述第二测量电极为所述电容式指纹检测装置周边的金属环。基于上述技术方案，该终端设备可以利用现有的电容式指纹检测装置实现对皮肤水分的检测。这样，用户可以方便快捷地使用这些终端设备检测自己的皮肤水分。With reference to the fourth possible implementation of the first aspect, in a fifth possible implementation of the first aspect, the second measurement electrode is composed of at least one sensing unit independent of the capacitive fingerprint detection device , or, the second measurement electrode is a metal ring around the capacitive fingerprint detection device. Based on the above technical solution, the terminal device can use the existing capacitive fingerprint detection device to detect skin moisture. In this way, users can conveniently and quickly use these terminal devices to detect their own skin moisture.
第二方面，本申请实施例提供一种终端设备，所述终端设备包括用于执行第一方面或第一方面的任一种可能的实现方式的单元。In a second aspect, an embodiment of the present application provides a terminal device, where the terminal device includes a unit configured to execute the first aspect or any possible implementation manner of the first aspect.
第三方面，本申请实施例提供一种终端设备，该终端设备包括处理器、存储器、测量电路、电容式指纹检测装置、第一测量电极和第二测量电极。存储器用于存储执行第一方面或第一方面的任一种可能的实现方式的指令。处理器结合其硬件执行存储器存储的指令。In a third aspect, an embodiment of the present application provides a terminal device, which includes a processor, a memory, a measurement circuit, a capacitive fingerprint detection device, a first measurement electrode, and a second measurement electrode. The memory is used to store instructions for executing the first aspect or any possible implementation manner of the first aspect. The processor, in conjunction with its hardware, executes the instructions stored in the memory.
第四方面，本申请实施例提供了一种可读存储介质，所述可读存储介质中存储有指令，当所述指令在终端设备上运行时，使得该终端设备执行第一方面或第一方面的任一种可能的实现方式的方法。In a fourth aspect, an embodiment of the present application provides a readable storage medium, the readable storage medium stores instructions, and when the instructions are run on a terminal device, the terminal device executes the first aspect or the first A method of any possible implementation of the aspect.
第五方面，本申请实施例提供一种包含指令的程序产品，当该计算机程序产品在终端设备上运行时，使得该终端设备执行第一方面或第一方面的任一种可能的实现方式的方法。In the fifth aspect, the embodiment of the present application provides a program product containing instructions, and when the computer program product is run on the terminal device, the terminal device executes the first aspect or any possible implementation manner of the first aspect. method.
附图说明Description of drawings
图1是根据本申请实施例提供的一种检测皮肤水分的方法的示意性流程图。Fig. 1 is a schematic flowchart of a method for detecting skin moisture according to an embodiment of the present application.
图2是一种第一测量电极和第二测量电极的示意图。Fig. 2 is a schematic diagram of a first measuring electrode and a second measuring electrode.
图3是另一种第一测量电极和第二测量电极的示意图。Fig. 3 is a schematic diagram of another first measuring electrode and a second measuring electrode.
图4是一个电容式指纹检测装置的示意图。Fig. 4 is a schematic diagram of a capacitive fingerprint detection device.
图5是根据本申请实施例提供的一种终端设备的结构框图。Fig. 5 is a structural block diagram of a terminal device provided according to an embodiment of the present application.
图6是根据本申请实施例提供的一种终端设备的结构框图。Fig. 6 is a structural block diagram of a terminal device provided according to an embodiment of the present application.
具体实施方式detailed description
下面将结合附图，对本申请中的技术方案进行描述。The technical solution in this application will be described below with reference to the accompanying drawings.
本申请实施例中所称的电容式指纹检测装置是指包括多个传感单元的指纹检测装置。该电容式指纹检测装置可以通过检测用户的手指与检测单元之间形成的电容值的方式确定该用户是否为合法用户。The capacitive fingerprint detection device referred to in the embodiments of the present application refers to a fingerprint detection device including a plurality of sensing units. The capacitive fingerprint detection device can determine whether the user is a legitimate user by detecting the capacitance value formed between the user's finger and the detection unit.
本申请实施例中所称的传感单元，也可以称为检测单元、检测电极、传感电极等。The sensing unit referred to in the embodiments of the present application may also be referred to as a detection unit, a detection electrode, a sensing electrode, and the like.
图1是根据本申请实施例提供的一种检测皮肤水分的方法的示意性流程图。Fig. 1 is a schematic flowchart of a method for detecting skin moisture according to an embodiment of the present application.
101，终端设备在用户的皮肤同时覆盖该终端设备的第一测量电极和第二测量电极时，确定该第一测量电极和该第二测量电极之间的电容值为第一电容值。101. When the user's skin simultaneously covers the first measurement electrode and the second measurement electrode of the terminal device, the terminal device determines that a capacitance value between the first measurement electrode and the second measurement electrode is a first capacitance value.
该第一测量电极由该终端设备的电容式指纹检测装置包括的N个传感单元中的P个传感单元构成，其中N为大于或等于2的正整数，P为大于或等于1的正整数。The first measurement electrode is composed of P sensing units among the N sensing units included in the capacitive fingerprint detection device of the terminal device, where N is a positive integer greater than or equal to 2, and P is a positive integer greater than or equal to 1. integer.
具体地，本申请实施例使用电容式指纹检测装置中的传感单元作为用于监测用户皮肤水分的测量电极。因此，电容式指纹检测装置可以有两种工作状态，指纹检测状态和皮肤水分检测状态。该终端设备可以根据需要自行确定该电容式指纹检测装置的工作状态，也可以根据用户的指令确定该电容式指纹检测装置的工作状态。例如，在该终端设备确定需要验证指纹的情况下，例如，用户需要解锁该终端设备，用户需要利用该终端设备进行支付操作等，该终端设备可以确定该电容式指纹检测装置工作在指纹检测状态，从而可以通过验证指纹的方式验证用户是否为合法用户。又如，当用户或者终端设备确定需要检测皮肤水分的情况下，例如，用户启动用于检测皮肤水分的软件，该终端设备可以确定该电容式指纹检测装置工作在皮肤水分检测状态。可以理解的是，图1是根据本申请实施例提供的一种检测皮肤水分的方法的示意性流程图。因此，除非特殊说明，图1所示的方法的步骤中，该指纹检测装置均是工作在皮肤水分检测状态。Specifically, the embodiment of the present application uses the sensing unit in the capacitive fingerprint detection device as the measurement electrode for monitoring the moisture content of the user's skin. Therefore, the capacitive fingerprint detection device can have two working states, the fingerprint detection state and the skin moisture detection state. The terminal device can determine the working state of the capacitive fingerprint detection device by itself according to needs, or can determine the working state of the capacitive fingerprint detection device according to the user's instruction. For example, when the terminal device determines that it needs to verify the fingerprint, for example, the user needs to unlock the terminal device, the user needs to use the terminal device to perform payment operations, etc., the terminal device can determine that the capacitive fingerprint detection device is working in the fingerprint detection state , so as to verify whether the user is a legitimate user by verifying the fingerprint. For another example, when the user or the terminal device determines that skin moisture needs to be detected, for example, the user starts the software for detecting skin moisture, the terminal device can determine that the capacitive fingerprint detection device is working in the skin moisture detection state. It can be understood that Fig. 1 is a schematic flowchart of a method for detecting skin moisture according to an embodiment of the present application. Therefore, unless otherwise specified, in the steps of the method shown in FIG. 1 , the fingerprint detection device works in the skin moisture detection state.
具体地，在该第一测量电极和该第二测量电极未被用户皮肤覆盖的情况下，该第一测量电极和该第二测量电极之间可以形成电容值为C0的电容，其中C0为大于0的数。在该用户皮肤同时覆盖该第一测量电极和该第二测量电极的情况下，该第一测量电极和该第二测量电极之间的电容值会发生改变。Specifically, in the case that the first measurement electrode and the second measurement electrode are not covered by the user's skin, a capacitance with a capacitance value C0 may be formed between the first measurement electrode and the second measurement electrode, where C0 is a number greater than 0. When the user's skin covers both the first measuring electrode and the second measuring electrode, the capacitance value between the first measuring electrode and the second measuring electrode will change.
可选的，在一些实施例中，该终端设备可以在确定该第一测量电极和该第二测量电极之间的电容值不为C0的情况下，确定该第一测量电极和该第二测量电极同时被用户皮肤覆盖；在确定该第一测量电极和该第二测量电极之间的电容值为C0的情况下，确定该第一测量电极和该第二测量电极未被用户皮肤覆盖。Optionally, in some embodiments, the terminal device may determine that the capacitance value between the first measurement electrode and the second measurement electrode is not C0 The measuring electrode is covered by the user's skin at the same time; in the case of determining that the capacitance value between the first measuring electrode and the second measuring electrode isC0 , it is determined that the first measuring electrode and the second measuring electrode are not covered by the user's skin .
可选的，在另一些实施例中，该终端设备可以在确定该第一测量电极和该第二测量电极之间的电容值与C0的差值大于预设阈值的情况下，确定该第一测量电极和该第二测量电极同时被用户皮肤覆盖；在确定该第一测量电极和该第二测量电极之间的电容值与C0的差值不大于预设阈值的情况下，确定该第一测量电极和该第二测量电极未被用户皮肤覆盖。这样，可以避免由于外界环境因素引起的该第一测量电极和该第二测量电极之间的电容值发生改变导致的误判。Optionally, in some other embodiments, the terminal device may determine that the first measurement electrode and the second measurement electrode have a difference between the capacitance value andC0 greater than a preset threshold value. A measurement electrode and the second measurement electrode are covered by the user's skin at the same time; when it is determined that the difference between the capacitance value between the first measurement electrode and the second measurement electrode andC0 is not greater than a preset threshold value, it is determined that the The first measurement electrode and the second measurement electrode are not covered by the user's skin. In this way, misjudgment caused by changes in the capacitance between the first measuring electrode and the second measuring electrode due to external environmental factors can be avoided.
可选的，在一些实施例中，该第二测量电极由该N个传感单元中的Q个传感单元构成，其中Q为大于或等于1的正整数，Q与P的和小于N，且该Q个传感单元不包括该P个传感单元中的任一个传感单元。Optionally, in some embodiments, the second measurement electrode is composed of Q sensing units among the N sensing units, where Q is a positive integer greater than or equal to 1, and the sum of Q and P is less than N, And the Q sensing units do not include any sensing unit in the P sensing units.
电容的值和两个电极之间的面积成正比，和两个电极之间的距离成反比。因此，为了获取更高的电容值可以使用更多的传感单元并且使得作为不同测量电极的传感单元之间的距离更近。The capacitance value is proportional to the area between the two electrodes and inversely proportional to the distance between the two electrodes. Therefore, in order to obtain a higher capacitance value, more sensing units can be used and the distance between the sensing units serving as different measurement electrodes can be made closer.
具体地，该P个传感单元和该Q个传感单元可以组成一个X×Y的传感单元阵列，X和Y均为大于或等于3的正整数。为方便描述，以下将该电容式指纹检测装置包括的N个传感单元中属于该P个传感单元的传感单元称为第一传感单元，将该电容式指纹检测装置包括的N个传感单元中属于该Q个传感单元的传感单元称为第二传感单元。Specifically, the P sensing units and the Q sensing units may form an X×Y sensing unit array, where both X and Y are positive integers greater than or equal to 3. For the convenience of description, the sensing unit belonging to the P sensing units among the N sensing units included in the capacitive fingerprint detection device is called the first sensing unit, and the N sensing units included in the capacitive fingerprint detection device Among the sensing units, the sensing units belonging to the Q sensing units are called second sensing units.
可选的，在一些实施例中，该传感单元阵列中的相邻两列传感单元中的第一列传感单元最多包括两个第一传感单元，该相邻两列传感单元中的第二列传感单元最多包括两个第二传感单元。该第一列传感单元和该第二列传感单元中的“第一”和“第二”仅是为了区分不同列的传感单元，并不是对传感单元顺序的限制。例如，第x列传感单元可以为该第一列传感单元，第x+1列传感单元可以为该第二列传感单元。再如，第x列传感单元可以为该第二列传感单元，第x+1列传感单元可以为该第一列传感单元。x为大于或等于1且小于X-1的正整数。Optionally, in some embodiments, the first column of sensing units in the two adjacent columns of sensing units in the sensing unit array includes at most two first sensing units, and the two adjacent columns of sensing units The second column of sensing units includes at most two second sensing units. The "first" and "second" in the first column of sensing units and the second column of sensing units are only used to distinguish sensing units of different columns, and are not a limitation on the order of the sensing units. For example, the xth column of sensing units may be the first column of sensing units, and the x+1th column of sensing units may be the second column of sensing units. For another example, the sensing unit in the xth column may be the sensing unit in the second column, and the sensing unit in the x+1th column may be the sensing unit in the first column. x is a positive integer greater than or equal to 1 and less than X-1.
可选的，在一些实施例中，若该第一列传感单元包括一个或两个第一传感单元，则该第一列传感单元包括的Y个传感单元中的第一个传感单元和/或第Y个传感单元为该第一列传感单元包括的第一传感单元。类似的，若该第二列传感单元包括一个或两个第二传感单元，则该第二列传感单元包括的Y个传感单元中的第一个传感单元和/或第Y个传感单元为该第二列传感单元包括的第二传感单元。Optionally, in some embodiments, if the first column of sensing units includes one or two first sensing units, the first sensor of the Y sensing units included in the first column of sensing units The sensing unit and/or the Yth sensing unit is the first sensing unit included in the first row of sensing units. Similarly, if the second row of sensing units includes one or two second sensing units, the first sensing unit and/or the Yth sensing unit of the Y sensing units included in the second row of sensing units The first sensing unit is the second sensing unit included in the second row of sensing units.
图2是一种第一测量电极和第二测量电极的示意图。如图2所示的电容式指纹检测装置200包括7×7个传感单元。电容式指纹检测装置200包括多个构成第一测量电极的传感单元201，多个构成第二测量电极的传感单元202，多个既不构成第一测量电极也不构成第二测量电极的传感单元203。Fig. 2 is a schematic diagram of a first measuring electrode and a second measuring electrode. The capacitive fingerprint detection device 200 shown in FIG. 2 includes 7×7 sensing units. The capacitive fingerprint detection device 200 includes a plurality of sensing units 201 constituting the first measuring electrodes, a plurality of sensing units 202 constituting the second measuring electrodes, and a plurality of sensing units neither constituting the first measuring electrodes nor the second measuring electrodes. Sensing unit 203.
如图2所示，传感单元201和传感单元202组成一个6行6列的传感单元阵列。该传感单元阵列中的六列传感单元中的左侧第一列传感单元包括1个传感单元201和5个传感单元202，且该传感单元201为该列传感单元中的第一个传感单元。该六列传感单元中的左侧第二列传感单元包括一个传感单元202和5个传感单元201，且该传感单元202位该列传感单元中的第六个传感单元。As shown in FIG. 2 , the sensing unit 201 and the sensing unit 202 form a sensing unit array with 6 rows and 6 columns. Among the six columns of sensing units in the sensing unit array, the first column of sensing units on the left includes one sensing unit 201 and five sensing units 202, and the sensing unit 201 is one of the sensing units in the column. the first sensing unit. The second sensor unit on the left in the six columns of sensor units includes a sensor unit 202 and five sensor units 201, and the sensor unit 202 is the sixth sensor unit in the column of sensor units .
图3是另一种第一测量电极和第二测量电极的示意图。如图3所示的电容式指纹检测装置300包括7×7个传感单元。电容式指纹检测装置300包括多个构成第一测量电极的传感单元301，多个构成第二测量电极的传感单元302，多个既不构成第一测量电极也不构成第二测量电极的传感单元303。Fig. 3 is a schematic diagram of another first measuring electrode and a second measuring electrode. The capacitive fingerprint detection device 300 shown in FIG. 3 includes 7×7 sensing units. The capacitive fingerprint detection device 300 includes a plurality of sensing units 301 constituting the first measuring electrodes, a plurality of sensing units 302 constituting the second measuring electrodes, and a plurality of sensing units neither constituting the first measuring electrodes nor the second measuring electrodes. Sensing unit 303 .
如图3所示，传感单元301和传感单元302组成一个6行6列的传感单元阵列。该传感单元阵列中的六列传感单元中的左侧第一列传感单元均为传感单元302。该六列传感单元中的左侧第二列传感单元均为传感单元301。As shown in FIG. 3 , the sensing unit 301 and the sensing unit 302 form a sensing unit array with 6 rows and 6 columns. The sensor units in the first column on the left among the six columns of sensor units in the array of sensor units are all sensor units 302 . The sensor units in the second column on the left among the six columns of sensor units are all sensor units 301 .
可选的，在另一些实施例中，该第二测量电极可以与该电容式指纹检测装置或者该终端设备的参考地电连接。Optionally, in other embodiments, the second measurement electrode may be electrically connected to the capacitive fingerprint detection device or the reference ground of the terminal device.
可选的，在一些实施例中，该第二测量电极可以是由独立于该电容式指纹检测装置的至少一个传感单元构成。Optionally, in some embodiments, the second measurement electrode may be composed of at least one sensing unit independent of the capacitive fingerprint detection device.
具体地，该终端设备还可以包括至少一个传感单元。该至少一个传感单元独立于该电容式指纹检测装置。例如，可以在与该电容式指纹检测装置相邻的位置设置至少一个传感单元。在检测皮肤水分的时候，用户的同一个手指同时覆盖构成该第一测量电极的属于该电容式指纹检测装置的至少一个传感单元以及构成该第二测量电极的不属于该电容式指纹检测装置的至少一个传感单元。Specifically, the terminal device may further include at least one sensing unit. The at least one sensing unit is independent of the capacitive fingerprint detection device. For example, at least one sensing unit may be disposed adjacent to the capacitive fingerprint detection device. When detecting skin moisture, the same finger of the user simultaneously covers at least one sensing unit that constitutes the first measurement electrode belonging to the capacitive fingerprint detection device and at least one sensing unit that constitutes the second measurement electrode that does not belong to the capacitive fingerprint detection device at least one sensor unit.
可选的，在另一些实施例中，该第二测量电极可以是该电容式指纹检测装置周边的金属环。Optionally, in some other embodiments, the second measurement electrode may be a metal ring around the capacitive fingerprint detection device.
图4是一个电容式指纹检测装置的示意图。如图4所示的电容式指纹检测装置400周边包括金属环401。Fig. 4 is a schematic diagram of a capacitive fingerprint detection device. The capacitive fingerprint detection device 400 shown in FIG. 4 includes a metal ring 401 around it.
102，该终端设备根据电容值和皮肤水分的对应关系和该第一电容值，确定该用户的皮肤水分。102. The terminal device determines the skin moisture of the user according to the correspondence between the capacitance value and the skin moisture and the first capacitance value.
该终端设备可以预先保存电容值和皮肤水分的对应关系。在确定了该第一电容值后，该终端设备可以根据该对应关系和该第一电容值，将一个第一电容值对应的皮肤水分确定为该用户的皮肤水分。The terminal device can pre-store the corresponding relationship between the capacitance value and the skin moisture. After the first capacitance value is determined, the terminal device may determine the skin moisture corresponding to the first capacitance value as the user's skin moisture according to the correspondence relationship and the first capacitance value.
例如，该终端设备可以采用列表的形式保存电容值和皮肤水分的对应关系。表1是一个电容值和皮肤水分的对应关系表。For example, the terminal device may store the correspondence between the capacitance value and the skin moisture in the form of a list. Table 1 is a table of correspondence between capacitance value and skin moisture.
表1Table 1
表1中C表示该第一电容值，C1至C4表示四个阈值。例如，若该终端设备确定的第一电容值小于C1，则可以根据如表1所示的对应关系确定皮肤水分为M1。若该终端设备确定的第一电容值大于C3，则可以根据表1所示的对应关系确定检测错误。In Table 1, C represents the first capacitance value, and C1 to C4 represent four threshold values. For example, if the first capacitance value determined by the terminal device is smaller than C1 , then the skin moisture content can be determined as M1 according to the correspondence shown in Table 1 . If the first capacitance value determined by the terminal device is greater than C3 , a detection error may be determined according to the correspondence shown in Table 1.
可以理解的是，该皮肤水分可以是一个具体的数值，也可以是一个数值范围，本申请实施例对此并不限定。It can be understood that the skin moisture may be a specific value or a range of values, which is not limited in this embodiment of the present application.
该终端设备可以通过输出装置将确定出的皮肤水分通知给该用户。例如，该终端设备可以通过显示器显示确定出的皮肤水分。再如，该终端设备可以通过扬声器广播确定出的皮肤水分。The terminal device can notify the user of the determined skin moisture content via the output device. For example, the terminal device can display the determined skin moisture through a display. For another example, the terminal device may broadcast the determined skin moisture through a loudspeaker.
可选的，在一些实施例中，在步骤103之前，该终端设备还可以确定参考电容值。在此情况下，该终端设备可以根据该参考电容值和该第一电容值，确定第二电容值。该终端设备根据电容值和皮肤水分的对应关系和该第二电容值，将与该第二电容值对应的皮肤水分确定为该用户的皮肤水分。具体确定过程与直接根据第一电容值确定皮肤水分的过程相同，在此就不必赘述。利用参考电容值对直接确定的电容值修正可以减少外界因素对于测量精确度的影响，从而可以提高测量的精确度。Optionally, in some embodiments, before step 103, the terminal device may also determine a reference capacitance value. In this case, the terminal device may determine the second capacitance value according to the reference capacitance value and the first capacitance value. The terminal device determines the skin moisture corresponding to the second capacitance value as the skin moisture of the user according to the correspondence between the capacitance value and the skin moisture and the second capacitance value. The specific determination process is the same as the process of directly determining the skin moisture according to the first capacitance value, so it is not necessary to repeat it here. Using the reference capacitance value to modify the directly determined capacitance value can reduce the influence of external factors on the measurement accuracy, thereby improving the measurement accuracy.
例如，不同的参考电容值可以对应不同的系数。该终端设备在确定了该参考电容值后，可以确定对应于该参考电容值的系数。然后该终端设备可以利用对应于该参考电容值的系数与该第一电容值，确定该第二电容值。该终端设备该第二电容值可以是该第一电容值与该系数相乘、相加、或者更复杂的运算的结果。该系数可以是一个也可以是多个。For example, different reference capacitance values may correspond to different coefficients. After determining the reference capacitance value, the terminal device may determine a coefficient corresponding to the reference capacitance value. Then the terminal device can use the coefficient corresponding to the reference capacitance value and the first capacitance value to determine the second capacitance value. The second capacitance value of the terminal device may be the result of multiplication, addition, or more complex operations of the first capacitance value and the coefficient. The coefficient can be one or more.
又如，不同的参考电容值可以对应于不同的函数。该终端设备可以在确定了该参考电容值后，可以确定对应于该参考电容值的函数。然后该终端设备可以利用对应于该参考电容值的函数与该第一电容值，确定该第二电容值。As another example, different reference capacitance values may correspond to different functions. After determining the reference capacitance value, the terminal device may determine a function corresponding to the reference capacitance value. Then the terminal device can determine the second capacitance value using a function corresponding to the reference capacitance value and the first capacitance value.
可选的，在另一些实施例中，不同的参考电容值对应的电容值和皮肤水分的对应关系也可以不同。在此情况下，该终端设备可以根据该参考电容值从多个对应关系中确定目标对应关系，然后可以根据该目标对应关系与该第一电容值确定该用户的皮肤水分。Optionally, in some other embodiments, the corresponding relationship between capacitance values and skin moisture corresponding to different reference capacitance values may also be different. In this case, the terminal device may determine a target correspondence from multiple correspondences according to the reference capacitance value, and then determine the skin moisture of the user according to the target correspondence and the first capacitance value.
可选的，在一些实施例中，该终端设备可以将该第一测量电极和该第二测量电极均未被皮肤覆盖时该第一测量电极和该第二测量电极之间的电容值确定为该参考电容值。Optionally, in some embodiments, the terminal device may determine the capacitance value between the first measurement electrode and the second measurement electrode when neither the first measurement electrode nor the second measurement electrode is covered by skin as The reference capacitor value.
可选的，在一些实施例中，该终端设备确定该参考电容值的时间和确定该第一电容值的时间之间的时间间隔可以小于一个预设时间阈值。这样，可以认为在该时间间隔内环境基本不发生变化，从而可以减少环境对电容值的测量影响。Optionally, in some embodiments, the time interval between the time when the terminal device determines the reference capacitance value and the time when the first capacitance value is determined may be less than a preset time threshold. In this way, it can be considered that the environment basically does not change during the time interval, so that the influence of the environment on the measurement of the capacitance value can be reduced.
可选的，在一些实施例中，该终端设备可以先确定该参考电容值，然后再确定该第一电容值。Optionally, in some embodiments, the terminal device may first determine the reference capacitance value, and then determine the first capacitance value.
可选的，在另一些实施例中，该终端设备可以先确定该第一电容值，然后再确定该参考电容值。Optionally, in some other embodiments, the terminal device may first determine the first capacitance value, and then determine the reference capacitance value.
可选的，在一些实施例中，该参考电容值可以是根据历史数据统计得到的电容值。例如，该终端设备可以预先保存参考电容值与环境信息的对应关系。该对应关系是根据历史统计数据确定好并预先测量好保存在该终端设备中的。该环境信息可以是当前空气湿度、温度等。该终端设备可以根据当前环境信息确定该参考电容值。该终端设备可以直接获取环境信息，也可以通过其它设备或者网络获取环境信息。Optionally, in some embodiments, the reference capacitance value may be a capacitance value obtained statistically from historical data. For example, the terminal device may store the correspondence between the reference capacitance value and the environment information in advance. The corresponding relationship is determined according to historical statistical data, measured in advance and stored in the terminal device. The environmental information may be current air humidity, temperature, and the like. The terminal device can determine the reference capacitance value according to current environment information. The terminal device can obtain the environmental information directly, or obtain the environmental information through other devices or networks.
目前，越来越多的终端设备，例如手机、平板电脑、笔记本电脑等，都通过电容式指纹检测装置来验证用户是否为合法用户。基于上述技术方案，该终端设备可以利用现有的电容式指纹检测装置实现对皮肤水分的检测。这样，用户可以方便快捷地使用这些终端设备检测自己的皮肤水分。At present, more and more terminal devices, such as mobile phones, tablet computers, notebook computers, etc., use a capacitive fingerprint detection device to verify whether a user is a legitimate user. Based on the above technical solution, the terminal device can use the existing capacitive fingerprint detection device to detect skin moisture. In this way, users can conveniently and quickly use these terminal devices to detect their own skin moisture.
图5是根据本申请实施例提供的一种终端设备的结构框图。如图5所示的终端设备500包括：第一测量单元501、第二测量单元502、处理单元503和电容式指纹检测单元504。Fig. 5 is a structural block diagram of a terminal device provided according to an embodiment of the present application. The terminal device 500 shown in FIG. 5 includes: a first measurement unit 501 , a second measurement unit 502 , a processing unit 503 and a capacitive fingerprint detection unit 504 .
电容式指纹检测单元504包括N个传感单元(图中未示出)。第一测量单元501为该N个传感单元中的P个传感单元，N为大于或等于2的正整数，P为大于或等于1的正整数。The capacitive fingerprint detection unit 504 includes N sensing units (not shown in the figure). The first measuring unit 501 is P sensing units in the N sensing units, N is a positive integer greater than or equal to 2, and P is a positive integer greater than or equal to 1.
处理单元503，用于在用户的皮肤同时覆盖第一测量单元501和第二测量单元502时，确定第一测量单元501和第二测量单元502之间的电容值为第一电容值。The processing unit 503 is configured to determine the first capacitance value between the first measurement unit 501 and the second measurement unit 502 when the user's skin covers the first measurement unit 501 and the second measurement unit 502 at the same time.
处理单元503，还用于根据电容值和皮肤水分的对应关系以及该第一电容值，确定该用户的皮肤水分。The processing unit 503 is further configured to determine the skin moisture of the user according to the correspondence between the capacitance value and the skin moisture and the first capacitance value.
基于上述技术方案，终端设备500可以利用现有的电容式指纹检测单元实现对皮肤水分的检测。这样，用户可以方便快捷地使用这些终端设备检测自己的皮肤水分。Based on the above technical solution, the terminal device 500 can use the existing capacitive fingerprint detection unit to detect skin moisture. In this way, users can conveniently and quickly use these terminal devices to detect their own skin moisture.
图5所示的终端设备500可以执行图1所示的方法中终端设备执行的各个步骤。终端设备500的各个单元的具体功能以及有益效果可以参照图1所示的方法，在此就不必赘述。The terminal device 500 shown in FIG. 5 may execute various steps performed by the terminal device in the method shown in FIG. 1 . For the specific functions and beneficial effects of each unit of the terminal device 500, reference may be made to the method shown in FIG. 1 , which need not be repeated here.
图6是根据本申请实施例提供的终端设备的结构框图。如图6所示的终端设备600包括处理器601、存储器602、测量电路603、电容式指纹检测装置604、第一测量电极611和第二测量电极612。Fig. 6 is a structural block diagram of a terminal device provided according to an embodiment of the present application. The terminal device 600 shown in FIG. 6 includes a processor 601 , a memory 602 , a measurement circuit 603 , a capacitive fingerprint detection device 604 , a first measurement electrode 611 and a second measurement electrode 612 .
上述本发明实施例揭示的方法可以应用于处理器601中，或者由处理器601实现。处理器601可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器601中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器601可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(FieldProgrammable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read-Only Memory，ROM)、可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器602，处理器601读取存储器602中的指令，结合其硬件完成上述方法的步骤。存储器602还可以用于存储电容值和皮肤水分的对应关系。The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 601 or implemented by the processor 601 . The processor 601 may be an integrated circuit chip and has signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 601 or instructions in the form of software. The above-mentioned processor 601 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc. in the storage medium. The storage medium is located in the memory 602, and the processor 601 reads the instructions in the memory 602, and completes the steps of the above method in combination with its hardware. The memory 602 can also be used to store the corresponding relationship between capacitance value and skin moisture.
处理器601可以在确定需要进行皮肤水分检测时(例如确定用户打开用于进行皮肤水分检测的软件)，控制电容式指纹检测装置604工作在皮肤水分检测状态。The processor 601 may control the capacitive fingerprint detection device 604 to work in the skin moisture detection state when it is determined that skin moisture detection is required (for example, it is determined that the user opens the software for skin moisture detection).
具体地，处理器601可以用于在确定需要进行皮肤水分检测时，控制测量电路603测量得第一测量电极611和第二测量电极612之间的电容值。Specifically, the processor 601 may be configured to control the measurement circuit 603 to measure the capacitance value between the first measurement electrode 611 and the second measurement electrode 612 when it is determined that skin moisture detection is required.
处理器601还可以用于在用户的皮肤同时覆盖第一测量电极611和第二测量电极612时，确定第一测量电极611和第二测量电极612之间的电容值为第一电容值；根据电容值和皮肤水分的对应关系和该第一电容值，确定该用户的皮肤水分。The processor 601 can also be used to determine the first capacitance value between the first measurement electrode 611 and the second measurement electrode 612 when the user's skin covers the first measurement electrode 611 and the second measurement electrode 612 at the same time; The corresponding relationship between capacitance value and skin moisture and the first capacitance value determine the user's skin moisture.
图6所示的终端设备600可以执行图1所示的方法中终端设备执行的各个步骤。终端设备600的各个元件的具体功能以及有益效果可以参照图1所示的方法，在此就不必赘述。The terminal device 600 shown in FIG. 6 may execute various steps performed by the terminal device in the method shown in FIG. 1 . For the specific functions and beneficial effects of each component of the terminal device 600, reference may be made to the method shown in FIG. 1 , which need not be repeated here.
可以理解的是，虽然图6所示的第一测量电极和第二测量电极均由电容式指纹检测装置中的传感单元构成，该第二测量电极也可以是由位于该终端设备的其他位置的传感单元构成或者是电容式指纹检测装置604周边的金属环。该金属环和该位于该终端设备的其他位置的传感单元可以与电容式指纹检测装置604或者终端设备600的参考地电连接。It can be understood that although both the first measuring electrode and the second measuring electrode shown in FIG. 6 are composed of the sensing unit in the capacitive fingerprint detection device, the second measuring electrode can also be located at other positions of the terminal device. The sensing unit constitutes or is a metal ring around the capacitive fingerprint detection device 604 . The metal ring and the sensing unit located in other positions of the terminal device may be electrically connected to the capacitive fingerprint detection device 604 or the reference ground of the terminal device 600 .
可以理解的是，本申请实施例中所称的与电容式指纹检测装置电连接可以是直接与电容式指纹检测装置电连接，也可以间接与电容式指纹检测装置电连接。间接与电容式指纹检测装置电连接可以是与测量电路连接。例如，测量电路可以包括两个端口，一个端口与构成第一测量电极的传感单元连接，另一个端口与构成第二测量电极的传感单元或者金属环连接。It can be understood that the electrical connection with the capacitive fingerprint detection device referred to in the embodiments of the present application may be a direct electrical connection with the capacitive fingerprint detection device, or an indirect electrical connection with the capacitive fingerprint detection device. The indirect electrical connection with the capacitive fingerprint detection device may be connection with the measuring circuit. For example, the measurement circuit may include two ports, one port is connected to the sensing unit constituting the first measuring electrode, and the other port is connected to the sensing unit or the metal ring constituting the second measuring electrode.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
上述实施例可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)或者半导体介质(例如，固态硬盘(SolidState Disk，SSD))等。The above-mentioned embodiments may be fully or partially implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SolidState Disk, SSD)) and the like.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
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| CN201710356428.3ACN107184209A (en) | 2017-05-19 | 2017-05-19 | Method and terminal device for detecting skin moisture |
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| CN201710356428.3APendingCN107184209A (en) | 2017-05-19 | 2017-05-19 | Method and terminal device for detecting skin moisture |
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