CN105759142B - Method and system for calibrating skin capacitance threshold of wearable device - Google Patents
Method and system for calibrating skin capacitance threshold of wearable device Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及智能设备技术领域，尤其涉及一种可穿戴设备皮肤电容阈值的校准方法及系统。The invention relates to the technical field of smart devices, in particular to a method and system for calibrating the skin capacitance threshold of a wearable device.
背景技术Background technique
皮肤的电容值与生活中其它物质的差别，是判断是否佩戴可穿戴设备的有效辅助手段。此方法需要在手表背部放置一块铜片，用于检测电容，然而，由于生产工艺的原因，生产出来的每一个手表，其跟皮肤接触的电容值都有一定差别，这导致很容易出现误判。目前一般的做法是使用固定的皮肤电容阈值作为接触皮肤的判断标准，此方法受生产工艺影响严重，必须要求生产出来的每个手表在同一物质上的电容值保持在一个相差不大的范围，但是工艺上很难做到且成本很高。基于电容检测片生产一致性不好的情况，如何提高电容检测皮肤的准确性是目前亟需解决的技术问题。The difference between the capacitance value of the skin and other substances in life is an effective auxiliary means for judging whether to wear a wearable device. This method needs to place a piece of copper on the back of the watch to detect the capacitance. However, due to the production process, each watch produced has a certain difference in the capacitance value in contact with the skin, which makes it easy to misjudgment . The current general practice is to use a fixed skin capacitance threshold as the criterion for skin contact. This method is seriously affected by the production process. It is necessary to require that the capacitance value of each watch produced on the same material be kept within a similar range. But it is very difficult and expensive to do so. Based on the poor production consistency of capacitance detection sheets, how to improve the accuracy of capacitance detection skin is a technical problem that needs to be solved urgently.
发明内容Contents of the invention
本发明提供了一种可穿戴设备皮肤电容阈值的校准方法及系统，利用电容检测片在不同物质中的电容特性，对生产出来的可穿戴设备的皮肤电容阈值进行计算，以计算得到的皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值，以确定可穿戴设备的最优的皮肤电容阈值，作为判断可穿戴设备是否与皮肤接触的阈值，有效提高电容检测片检测皮肤的准确性，同时降低了生产中对工艺的要求，大大降低了生产成本。The invention provides a method and system for calibrating the skin capacitance threshold of a wearable device. The capacitance characteristics of the capacitance detection sheet in different substances are used to calculate the skin capacitance threshold of the produced wearable device to obtain the calculated skin capacitance. The threshold is used as the skin capacitance threshold of the calibrated wearable device to determine the optimal skin capacitance threshold of the wearable device. It greatly reduces the production cost.
为实现上述设计，本发明采用以下技术方案：In order to realize above-mentioned design, the present invention adopts following technical scheme:
一方面，提供了一种可穿戴设备皮肤电容阈值的校准方法。该校准方法，包括：In one aspect, a method for calibrating the skin capacitance threshold of a wearable device is provided. The calibration method, including:
将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1；Put the back of the wearable device in the air, and detect the capacitance value C1 of the capacitance detection sheet;
将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2；Place the back of the wearable device on the copper sheet, and detect the capacitance value C2 of the capacitance detection sheet;
计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。The skin capacitance threshold is calculated, and the skin capacitance threshold=(C2-C1)×P+C1, where P is a preset proportional coefficient, and the skin capacitance threshold is used as the calibrated skin capacitance threshold of the wearable device.
优选地，所述计算得到皮肤电容阈值之后，还包括：将所述皮肤电容阈值写入可穿戴设备的flash中，以使可穿戴设备在每次开机时从flash中读取出所述皮肤电容阈值，作为可穿戴设备判断是否跟皮肤接触的阈值。Preferably, after obtaining the skin capacitance threshold, the calculation further includes: writing the skin capacitance threshold into the flash of the wearable device, so that the wearable device reads the skin capacitance from the flash every time it is turned on Threshold, as the threshold for the wearable device to judge whether it is in contact with the skin.
优选地，所述将所述皮肤电容阈值写入可穿戴设备的flash中之后，还包括：对所述预置比例系数P进行调节，根据公式皮肤电容阈值＝(C2-C1)×P+C1重新计算所述皮肤电容阈值。Preferably, after writing the skin capacitance threshold into the flash of the wearable device, it further includes: adjusting the preset proportional coefficient P, according to the formula skin capacitance threshold=(C2-C1)×P+C1 The skin capacitance threshold is recalculated.
优选地，所述根据公式皮肤电容阈值＝(C2-C1)×P+C1重新计算所述皮肤电容阈值之后，还包括：把重新计算的皮肤电容阈值写入可穿戴设备的flash中，以对可穿戴设备的皮肤电容阈值进行校准。Preferably, after recalculating the skin capacitance threshold according to the formula skin capacitance threshold=(C2-C1)×P+C1, it also includes: writing the recalculated skin capacitance threshold into the flash of the wearable device, so as to The skin capacitance threshold of wearable devices is calibrated.
优选地，所述预置比例系数P的取值范围为0.5-0.6。Preferably, the value range of the preset proportional coefficient P is 0.5-0.6.
另一方面，提供了一种可穿戴设备皮肤电容阈值的校准系统。该校准系统，包括：On the other hand, a calibration system for skin capacitance threshold of a wearable device is provided. The calibration system, including:
空气电容检测模块，用于将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1；The air capacitance detection module is used to place the back of the wearable device in the air to detect the capacitance value C1 of the capacitance detection sheet;
铜片电容检测模块，用于将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2；The copper sheet capacitance detection module is used to place the back of the wearable device on the copper sheet to detect the capacitance value C2 of the capacitance detection sheet;
计算模块，用于计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。The calculation module is used to calculate the skin capacitance threshold, the skin capacitance threshold=(C2-C1)×P+C1, where P is a preset proportional coefficient, and the skin capacitance threshold is used as the calibrated skin capacitance of the wearable device threshold.
优选地，还包括：Preferably, it also includes:
写入模块，用于将所述皮肤电容阈值写入可穿戴设备的flash中，以使可穿戴设备在每次开机时从flash中读取出所述皮肤电容阈值，作为可穿戴设备判断是否跟皮肤接触的阈值。A writing module, configured to write the skin capacitance threshold into the flash of the wearable device, so that the wearable device reads the skin capacitance threshold from the flash each time it is turned on, as the wearable device judges whether to follow the Threshold for skin contact.
优选地，所述计算模块还用于：对所述预置比例系数P进行调节，根据公式皮肤电容阈值＝(C2-C1)×P+C1重新计算所述皮肤电容阈值。Preferably, the calculation module is further configured to: adjust the preset proportional coefficient P, and recalculate the skin capacitance threshold according to the formula skin capacitance threshold=(C2-C1)×P+C1.
优选地，所述写入模块，还用于：把重新计算的皮肤电容阈值写入可穿戴设备的flash中，以对可穿戴设备的皮肤电容阈值进行校准。Preferably, the writing module is further configured to: write the recalculated skin capacitance threshold into the flash of the wearable device, so as to calibrate the skin capacitance threshold of the wearable device.
优选地，所述预置比例系数P的取值范围为0.5-0.6。Preferably, the value range of the preset proportional coefficient P is 0.5-0.6.
与现有技术相比，本发明的有益效果为：将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1；将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2；计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。本发明利用电容检测片在不同物质中的电容特性，对生产出来的可穿戴设备的皮肤电容阈值进行计算，以计算得到的皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值，以确定可穿戴设备的最优的皮肤电容阈值，作为判断可穿戴设备是否与皮肤接触的阈值，有效提高电容检测片检测皮肤的准确性，同时降低了生产中对工艺的要求，大大降低了生产成本。Compared with the prior art, the beneficial effect of the present invention is: the back of the wearable device is placed in the air, and the capacitance value C1 of the capacitance detection sheet is detected; the back of the wearable device is placed on a copper sheet, and the capacitance detection sheet is detected The capacitance value C2 of the chip; the skin capacitance threshold is calculated, and the skin capacitance threshold=(C2-C1)×P+C1, where P is a preset proportional coefficient, and the skin capacitance threshold is used as the calibrated wearable device skin capacitance threshold. The present invention uses the capacitance characteristics of the capacitance detection sheet in different substances to calculate the skin capacitance threshold of the produced wearable device, and uses the calculated skin capacitance threshold as the calibrated skin capacitance threshold of the wearable device to determine the wearable device. The optimal skin capacitance threshold of the device, as the threshold for judging whether the wearable device is in contact with the skin, can effectively improve the accuracy of the capacitance detection sheet to detect the skin, and at the same time reduce the requirements for the process in production and greatly reduce the production cost.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本发明实施例的内容和这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to the content of the embodiment of the present invention and these drawings without any creative effort.
图1是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准方法的第一实施例的方法流程图。Fig. 1 is a method flowchart of a first embodiment of a method for calibrating a skin capacitance threshold of a wearable device provided in a specific embodiment of the present invention.
图2是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准方法的第二实施例的方法流程图。Fig. 2 is a method flowchart of a second embodiment of a method for calibrating a skin capacitance threshold of a wearable device provided in a specific embodiment of the present invention.
图3是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准系统的第一实施例的结构方框图。Fig. 3 is a structural block diagram of a first embodiment of a system for calibrating a skin capacitance threshold of a wearable device provided in a specific embodiment of the present invention.
图4是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准系统的第二实施例的结构方框图。Fig. 4 is a structural block diagram of a second embodiment of a system for calibrating a skin capacitance threshold of a wearable device provided in a specific embodiment of the present invention.
具体实施方式Detailed ways
为使本发明解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本发明实施例的技术方案作进一步的详细描述，显然，所描述的实施例仅仅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 technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
请参考图1，其是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准方法的第一实施例的方法流程图。如图所示，该方法，包括：Please refer to FIG. 1 , which is a method flowchart of a first embodiment of a method for calibrating a skin capacitance threshold of a wearable device provided in a specific embodiment of the present invention. As shown in the figure, the method includes:
步骤S101：将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1。Step S101: Put the back of the wearable device in the air, and detect the capacitance value C1 of the capacitance detection sheet.
所述电容检测片位于可穿戴设备的背部内侧，把可穿戴设备的背部置于空气中，检测此时电容检测片的电容值C1。优选地，所述可穿戴设备包括：智能手表和智能手腕等。The capacitance detection sheet is located inside the back of the wearable device, and the back of the wearable device is placed in the air to detect the capacitance value C1 of the capacitance detection sheet at this time. Preferably, the wearable device includes: a smart watch, a smart wrist, and the like.
步骤S102：将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2。Step S102: Place the back of the wearable device on the copper sheet, and detect the capacitance C2 of the capacitance detection sheet.
步骤S103：计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。Step S103: Calculate the skin capacitance threshold, the skin capacitance threshold=(C2-C1)×P+C1, where P is a preset proportional coefficient, and use the skin capacitance threshold as the calibrated skin capacitance threshold of the wearable device.
电容检测片具有以下特性：①用于检测皮肤的电容检测片受到电路、结构等因素的影响，生产出来的不同可穿戴设备的个体在同一物质上检测出来的电容值有较大差异；②对每台可穿戴设备来说，放置在生活中大部分物体上和放置于皮肤上的电容都有一定的差值，一般至于空气中的电容值最小；③放置在金属铜片上的电容值与放置在人体皮肤上的电容值非常接近。基于电容检测片的这几个特性，对生成完成的每台可穿戴设备进行电容校准，以确定可穿戴设备的最优的皮肤电容阈值，以提高电容检测片检测皮肤的准确性。公式皮肤电容阈值＝(C2-C1)×P+C1，是基于大量的实验数据而得到的，根据此公式对皮肤电容阈值进行计算校准，可得到可穿戴设备的最优的皮肤电容阈值。The capacitance detection sheet has the following characteristics: ①The capacitance detection sheet used to detect the skin is affected by factors such as circuit and structure, and the capacitance values detected by the individuals of different wearable devices produced on the same substance are quite different; For each wearable device, there is a certain difference between the capacitance placed on most objects in life and the capacitance placed on the skin. Generally, the capacitance value in the air is the smallest; ③The capacitance value placed on the metal copper sheet is different from that placed on the skin The capacitance value on human skin is very close. Based on these characteristics of the capacitive detection chip, capacitance calibration is performed on each generated wearable device to determine the optimal skin capacitance threshold of the wearable device, so as to improve the accuracy of the capacitive detection chip to detect skin. The formula skin capacitance threshold=(C2-C1)×P+C1 is obtained based on a large amount of experimental data. According to this formula, the skin capacitance threshold is calculated and calibrated, and the optimal skin capacitance threshold of the wearable device can be obtained.
优选地，所述预置比例系数P的取值范围为0.5-0.6。可对所述预置比例系数P进行设置，以得到可穿戴设备的最优的皮肤电容阈值，提高电容检测片检测皮肤的准确性。Preferably, the value range of the preset proportional coefficient P is 0.5-0.6. The preset proportionality coefficient P can be set to obtain the optimal skin capacitance threshold of the wearable device and improve the accuracy of the skin detection by the capacitance detection sheet.
综上所述，本实施例利用电容检测片在不同物质中的电容特性，对生产出来的可穿戴设备的皮肤电容阈值进行计算，以计算得到的皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值，以确定可穿戴设备的最优的皮肤电容阈值，作为判断可穿戴设备是否与皮肤接触的阈值，有效提高电容检测片检测皮肤的准确性，同时降低了生产中对工艺的要求，大大降低了生产成本。In summary, this embodiment uses the capacitance characteristics of the capacitance detection sheet in different substances to calculate the skin capacitance threshold of the wearable device produced, and use the calculated skin capacitance threshold as the calibrated skin capacitance of the wearable device Threshold, to determine the optimal skin capacitance threshold of the wearable device, as the threshold for judging whether the wearable device is in contact with the skin, effectively improving the accuracy of the capacitance detection sheet to detect the skin, while reducing the requirements for the process in production, greatly reducing production cost.
请参考图2，其是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准方法的第二实施例的方法流程图。如图所示，该方法，包括：Please refer to FIG. 2 , which is a method flowchart of a second embodiment of a method for calibrating a skin capacitance threshold of a wearable device provided in a specific embodiment of the present invention. As shown in the figure, the method includes:
步骤S201：将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1。Step S201: Put the back of the wearable device in the air, and detect the capacitance value C1 of the capacitance detection sheet.
所述电容检测片位于可穿戴设备的背部内侧，把可穿戴设备的背部置于空气中，检测此时电容检测片的电容值C1。优选地，所述可穿戴设备包括：智能手表和智能手腕等。The capacitance detection sheet is located inside the back of the wearable device, and the back of the wearable device is placed in the air to detect the capacitance value C1 of the capacitance detection sheet at this time. Preferably, the wearable device includes: a smart watch, a smart wrist, and the like.
步骤S202：将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2。Step S202: Place the back of the wearable device on the copper sheet, and detect the capacitance C2 of the capacitance detection sheet.
将可穿戴设备的背部放置于铜片上，检测此时电容检测片的电容值C2。Place the back of the wearable device on the copper sheet, and detect the capacitance value C2 of the capacitance detection sheet at this time.
步骤S203：计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。Step S203: Calculate the skin capacitance threshold, the skin capacitance threshold=(C2-C1)×P+C1, where P is a preset proportional coefficient, and use the skin capacitance threshold as the calibrated skin capacitance threshold of the wearable device.
电容检测片具有以下特性：①用于检测皮肤的电容检测片受到电路、结构等因素的影响，生产出来的不同可穿戴设备的个体在同一物质上检测出来的电容值有较大差异；②对每台可穿戴设备来说，放置在生活中大部分物体上和放置于皮肤上的电容都有一定的差值，一般至于空气中的电容值最小；③放置在金属铜片上的电容值与放置在人体皮肤上的电容值非常接近。基于电容检测片的这几个特性，对生成完成的每台可穿戴设备进行电容校准，以确定可穿戴设备的最优的皮肤电容阈值，以提高电容检测片检测皮肤的准确性。公式皮肤电容阈值＝(C2-C1)×P+C1，是基于大量的实验数据而得到的，根据此公式对皮肤电容阈值进行计算校准，可得到可穿戴设备的最优的皮肤电容阈值。优选地，所述预置比例系数P的取值范围为0.5-0.6。可对所述预置比例系数P进行设置，以得到可穿戴设备的最优的皮肤电容阈值，提高电容检测片检测皮肤的准确性。The capacitance detection sheet has the following characteristics: ①The capacitance detection sheet used to detect the skin is affected by factors such as circuit and structure, and the capacitance values detected by the individuals of different wearable devices produced on the same substance are quite different; For each wearable device, there is a certain difference between the capacitance placed on most objects in life and the capacitance placed on the skin. Generally, the capacitance value in the air is the smallest; ③The capacitance value placed on the metal copper sheet is different from that placed on the skin The capacitance value on human skin is very close. Based on these characteristics of the capacitive detection chip, capacitance calibration is performed on each generated wearable device to determine the optimal skin capacitance threshold of the wearable device, so as to improve the accuracy of the capacitive detection chip to detect skin. The formula skin capacitance threshold=(C2-C1)×P+C1 is obtained based on a large amount of experimental data. According to this formula, the skin capacitance threshold is calculated and calibrated, and the optimal skin capacitance threshold of the wearable device can be obtained. Preferably, the value range of the preset proportional coefficient P is 0.5-0.6. The preset proportional coefficient P can be set to obtain the optimal skin capacitance threshold of the wearable device and improve the accuracy of skin detection by the capacitance detection sheet.
步骤S204：将所述皮肤电容阈值写入可穿戴设备的flash中，以使可穿戴设备在每次开机时从flash中读取出所述皮肤电容阈值，作为可穿戴设备判断是否跟皮肤接触的阈值。Step S204: Write the skin capacitance threshold into the flash of the wearable device, so that the wearable device reads the skin capacitance threshold from the flash every time it is turned on, and serves as the basis for the wearable device to determine whether it is in contact with the skin threshold.
步骤S205：对所述预置比例系数P进行调节，根据公式皮肤电容阈值＝(C2-C1)×P+C1重新计算所述皮肤电容阈值。Step S205: Adjust the preset proportional coefficient P, and recalculate the skin capacitance threshold according to the formula skin capacitance threshold=(C2-C1)×P+C1.
优选地，所述将所述皮肤电容阈值写入可穿戴设备的flash中之后，还包括：步骤S206：对所述预置比例系数P进行调节，根据公式皮肤电容阈值＝(C2-C1)×P+C1重新计算所述皮肤电容阈值。从生活中各种物质的不同电容特性来看，预置比例系数P取0.5到0.6左右，以此比例值范围进行微调可达到很好的校准效果。若皮肤电容阈值的校准效果不佳，对预置比例系数P进行调节，重新计算皮肤电容阈值，以提高检测的准确性。Preferably, after writing the skin capacitance threshold into the flash of the wearable device, it further includes: Step S206: Adjusting the preset proportional coefficient P, according to the formula skin capacitance threshold=(C2-C1)× P+C1 recalculates the skin capacitance threshold. Judging from the different capacitance characteristics of various substances in life, the preset proportional coefficient P is about 0.5 to 0.6, and fine-tuning within this range of proportional values can achieve a good calibration effect. If the calibration effect of the skin capacitance threshold is not good, the preset proportional coefficient P is adjusted to recalculate the skin capacitance threshold to improve the detection accuracy.
步骤S206：把重新计算的皮肤电容阈值写入可穿戴设备的flash中，以对可穿戴设备的皮肤电容阈值进行校准。Step S206: Write the recalculated skin capacitance threshold into the flash of the wearable device, so as to calibrate the skin capacitance threshold of the wearable device.
把重新计算的皮肤电容阈值写入可穿戴设备的flash中，替换掉之前写入的皮肤电容阈值，以对可穿戴设备的皮肤电容阈值进行再次校准。Write the recalculated skin capacitance threshold into the flash of the wearable device to replace the previously written skin capacitance threshold, so as to recalibrate the skin capacitance threshold of the wearable device.
本实施例利用电容检测片在不同物质中的电容特性，对生产出来的可穿戴设备的皮肤电容阈值进行计算，以计算得到的皮肤电容阈值作为校准可穿戴设备皮肤电容阈值的基础，对预置比例系数P进行调节，对可穿戴设备的皮肤电容阈值进行再次校准，以确定可穿戴设备的最优的皮肤电容阈值，作为判断可穿戴设备是否与皮肤接触的阈值，有效提高电容检测片检测皮肤的准确性，同时降低了生产中对工艺的要求，大大降低了生产成本。In this embodiment, the capacitance characteristics of the capacitance detection sheet in different substances are used to calculate the skin capacitance threshold of the wearable device produced, and the calculated skin capacitance threshold is used as the basis for calibrating the skin capacitance threshold of the wearable device. The proportional coefficient P is adjusted, and the skin capacitance threshold of the wearable device is recalibrated to determine the optimal skin capacitance threshold of the wearable device, which is used as the threshold for judging whether the wearable device is in contact with the skin, and effectively improves the capacitance detection sheet to detect the skin. Accuracy, while reducing the requirements of the process in production, greatly reducing production costs.
以下是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准系统的实施例，系统的实施例基于上述的方法的实施例实现，在系统中未尽的描述，请参考前述方法的实施例。The following is an embodiment of a skin capacitance threshold calibration system for a wearable device provided in the specific embodiments of the present invention. The embodiment of the system is implemented based on the embodiment of the above-mentioned method. For the unfinished description in the system, please refer to the aforementioned method the embodiment.
请参考图3，其是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准系统的第一实施例的结构方框图。如图所示，该系统，包括：Please refer to FIG. 3 , which is a structural block diagram of a first embodiment of a system for calibrating skin capacitance thresholds of wearable devices provided in the specific embodiments of the present invention. As shown in the figure, the system includes:
空气电容检测模块31，用于将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1。The air capacitance detection module 31 is configured to place the back of the wearable device in the air, and detect the capacitance value C1 of the capacitance detection sheet.
优选地，所述可穿戴设备包括：智能手表和智能手腕等。Preferably, the wearable device includes: a smart watch, a smart wrist, and the like.
铜片电容检测模块32，用于将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2。The copper sheet capacitance detection module 32 is configured to place the back of the wearable device on the copper sheet to detect the capacitance C2 of the capacitance detection sheet.
计算模块33，用于计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。The calculation module 33 is used to calculate the skin capacitance threshold value, the skin capacitance threshold value=(C2-C1)×P+C1, wherein P is a preset proportional coefficient, and the skin capacitance threshold value is used as the calibrated wearable device skin capacitance threshold.
优选地，所述预置比例系数P的取值范围为0.5-0.6。Preferably, the value range of the preset proportional coefficient P is 0.5-0.6.
综上所述，本实施例利用电容检测片在不同物质中的电容特性，对生产出来的可穿戴设备的皮肤电容阈值进行计算，以计算得到的皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值，以确定可穿戴设备的最优的皮肤电容阈值，作为判断可穿戴设备是否与皮肤接触的阈值，有效提高电容检测片检测皮肤的准确性，同时降低了生产中对工艺的要求，大大降低了生产成本。In summary, this embodiment uses the capacitance characteristics of the capacitance detection sheet in different substances to calculate the skin capacitance threshold of the wearable device produced, and use the calculated skin capacitance threshold as the calibrated skin capacitance of the wearable device Threshold, to determine the optimal skin capacitance threshold of the wearable device, as the threshold for judging whether the wearable device is in contact with the skin, effectively improving the accuracy of the capacitance detection sheet to detect the skin, while reducing the requirements for the process in production, greatly reducing production cost.
请参考图4，其是本发明具体实施方式中提供的一种可穿戴设备皮肤电容阈值的校准系统的第二实施例的结构方框图。如图所示，该系统，包括：Please refer to FIG. 4 , which is a structural block diagram of a second embodiment of a system for calibrating skin capacitance thresholds of wearable devices provided in the specific embodiments of the present invention. As shown in the figure, the system includes:
空气电容检测模块41，用于将可穿戴设备的背部置于空气中，检测电容检测片的电容值C1。The air capacitance detection module 41 is configured to place the back of the wearable device in the air, and detect the capacitance value C1 of the capacitance detection sheet.
优选地，所述可穿戴设备包括：智能手表和智能手腕等。Preferably, the wearable device includes: a smart watch, a smart wrist, and the like.
铜片电容检测模块42，用于将可穿戴设备的背部放置于铜片上，检测所述电容检测片的电容值C2。The copper sheet capacitance detection module 42 is configured to place the back of the wearable device on the copper sheet and detect the capacitance value C2 of the capacitance detection sheet.
计算模块43，用于计算得到皮肤电容阈值，所述皮肤电容阈值＝(C2-C1)×P+C1，其中P为预置比例系数，以所述皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值。The calculation module 43 is used to calculate the skin capacitance threshold value, the skin capacitance threshold value=(C2-C1)×P+C1, wherein P is a preset proportional coefficient, and the skin capacitance threshold value is used as the calibrated wearable device skin capacitance threshold.
优选地，所述预置比例系数P的取值范围为0.5-0.6。可对所述预置比例系数P进行设置，以得到可穿戴设备的最优的皮肤电容阈值，提高电容检测片检测皮肤的准确性。Preferably, the value range of the preset proportional coefficient P is 0.5-0.6. The preset proportionality coefficient P can be set to obtain the optimal skin capacitance threshold of the wearable device and improve the accuracy of the skin detection by the capacitance detection sheet.
写入模块44，用于将所述皮肤电容阈值写入可穿戴设备的flash中，以使可穿戴设备在每次开机时从flash中读取出所述皮肤电容阈值，作为可穿戴设备判断是否跟皮肤接触的阈值。Writing module 44, is used for writing described skin capacitance threshold value in the flash of wearable device, makes wearable device read out described skin capacitance threshold value from flash when starting up each time, as wearable device judges whether Threshold for skin contact.
优选地，所述计算模块43还用于：对所述预置比例系数P进行调节，根据公式皮肤电容阈值＝(C2-C1)×P+C1重新计算所述皮肤电容阈值。Preferably, the calculation module 43 is further configured to: adjust the preset proportional coefficient P, and recalculate the skin capacitance threshold according to the formula skin capacitance threshold=(C2-C1)×P+C1.
若皮肤电容阈值的校准效果不佳，可对预置比例系数P进行调节，重新计算皮肤电容阈值，以提高检测的准确性。从生活中各种物质的不同电容特性来看，预置比例系数P取0.5到0.6左右，以此比例值范围进行微调可达到很好的校准效果。If the calibration effect of the skin capacitance threshold is not good, the preset proportional coefficient P can be adjusted to recalculate the skin capacitance threshold to improve the detection accuracy. Judging from the different capacitance characteristics of various substances in life, the preset proportional coefficient P is about 0.5 to 0.6, and fine-tuning within this range of proportional values can achieve a good calibration effect.
优选地，所述写入模块44，还用于：把重新计算的皮肤电容阈值写入可穿戴设备的flash中，以对可穿戴设备的皮肤电容阈值进行校准。Preferably, the writing module 44 is further configured to: write the recalculated skin capacitance threshold into the flash of the wearable device, so as to calibrate the skin capacitance threshold of the wearable device.
把重新计算的皮肤电容阈值写入可穿戴设备的flash中，替换掉之前写入的皮肤电容阈值，以对可穿戴设备的皮肤电容阈值进行再次校准。Write the recalculated skin capacitance threshold into the flash of the wearable device to replace the previously written skin capacitance threshold, so as to recalibrate the skin capacitance threshold of the wearable device.
综上所述，本实施例提供的可穿戴设备皮肤电容阈值的校准系统本实施例利用电容检测片在不同物质中的电容特性，对生产出来的可穿戴设备的皮肤电容阈值进行计算，以计算得到的皮肤电容阈值作为校准后的可穿戴设备皮肤电容阈值，对预置比例系数P进行调节，对可穿戴设备的皮肤电容阈值进行校准，以确定可穿戴设备的最优的皮肤电容阈值，作为判断可穿戴设备是否与皮肤接触的阈值，有效提高电容检测片检测皮肤的准确性，同时降低了生产中对工艺的要求，大大降低了生产成本。To sum up, the calibration system for the skin capacitance threshold of wearable devices provided by this embodiment This embodiment uses the capacitance characteristics of the capacitance detection sheet in different substances to calculate the skin capacitance threshold of the wearable device produced to calculate The obtained skin capacitance threshold is used as the calibrated skin capacitance threshold of the wearable device, and the preset proportional coefficient P is adjusted to calibrate the skin capacitance threshold of the wearable device to determine the optimal skin capacitance threshold of the wearable device, as The threshold for judging whether the wearable device is in contact with the skin can effectively improve the accuracy of the capacitive detection sheet to detect the skin, and at the same time reduce the requirements for the process in production and greatly reduce the production cost.
以上结合具体实施例描述了本发明的技术原理。这些描述只是为了解释本发明的原理，而不能以任何方式解释为对本发明保护范围的限制。基于此处的解释，本领域的技术人员不需要付出创造性的劳动即可联想到本发明的其它具体实施方式，这些方式都将落入本发明的保护范围之内。The above describes the technical principles of the present invention in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention, and cannot be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation modes of the present invention without creative efforts, and these modes will all fall within the protection scope of the present invention.
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