Temperature and humidity sensor module sensing method
A sensing method and technology of temperature and humidity, applied in the application of thermometers, temperature measurement in household appliances, thermometers, etc., can solve the problems of reduced accuracy, failure, adhesion or condensation of water molecules in temperature and humidity sensing elements
Inactive Publication Date: 2020-02-21
SOLTEAM OPTO
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Problems solved by technology
However, if the temperature and humidity sensing element is in an environment with high humidity or splashing water for a long time, it is easy for water molecules to adhere or condense on its surface, which will greatly reduce the accuracy of the temperature and humidity sensing element or even fail. How to make the temperature and humidity Keeping the sensing element in the best working condition becomes the problem to be solved by the present invention
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[0012] In order to achieve the above-mentioned purpose and effect, the technical means and the structure adopted by the present invention are hereby illustrated in detail with respect to the preferred embodiments of the present invention. Its structure and function are as follows.
[0013] see figure 1 As shown, it is a functional block diagram of the temperature and humidity sensing module of the present invention, wherein a temperature and humidity sensing element 11, a heating element 12, and a micro control unit 13 are arranged on a circuit board 1, and the more detailed explanations of each component are as follows:
[0014] The temperature and humidity sensing element 11 is disposed on the circuit board 1 to sense the temperature and humidity of the outside world. The temperature and humidity sensing element 11 is composed of a resistive humidity sensing element and a thermistor.
[0015] The heating element 12 is arranged on the circuit board 1 and surrounds the outside...
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A temperature and humidity sensor module sensing method for enabling a temperature and humidity sensor in an electric product to provide the detected humidity message to a micro control unit for determination. According to the characteristic curve of a known humidity sensor, the micro control unit determines that the humidity value rising slope exceeds a predetermined rising slope for a specific period of time, or the relative humidity rises a predetermined percentage for a specified period of time, or a high humidity limit continues for a specific period of time, indicating that the surface of the temperature and humidity sensor is attached or condensed with water molecules. Then, the micro control unit controls the heating element to heat-dry the temperature and humidity sensor, keepingthe temperature and humidity sensor in the optimal working condition.
Description
technical field [0001] The invention provides a sensing method of a temperature and humidity sensing module, especially a temperature and humidity sensing element with water molecules attached or condensed on the surface, and the micro control unit controls the heating element to start heating to remove the water molecules, so that the temperature and humidity The method by which the sensing element is kept in optimum working condition. Background technique [0002] The advancement of science and technology is to bring people a more comfortable and convenient life. This is the reason why 3C products or home appliances are constantly being introduced. Cleaning is a hard job for people at all times and in all over the world, such as laundry or laundry. As far as tableware is concerned, hands will wrinkle when they are in contact with water for a long time, and long-term contact with detergent will cause damage to the skin of the hands to a certain extent. Since people don't li...
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IPC IPC(8): F26B25/22F26B23/06G01D21/02
CPCF26B23/06F26B25/22G01D21/02G01K13/00G01K2207/00G01K7/22G01N27/121G01N27/123
Inventor 吴尚容卢俊霖王嘉鸿陈晋丰
Owner SOLTEAM OPTO