A sensing detection signal filtering method, pressure detection system and application
A technology for detecting signals and detecting systems, which is applied in the field of sensing and detection, can solve the problems that the measurement accuracy cannot be perfectly guaranteed, the detection accuracy of pressure sensors is low, and the impact is large, and the effects of ensuring stability, reducing noise interference, and improving accuracy are achieved.
Active Publication Date: 2021-12-07
深圳市深芯扬电子有限公司
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[0003] A pressure sensor is a sensing device that senses a pressure signal. The pressure is converted into an electrical signal, and then the final pressure value is obtained according to the obtained electrical signal. However, in practical applications, the existing pressure sensors have low detection accuracy and are in In the actual weighing process, it is often greatly affected by the surroundings, and the measurement accuracy cannot be guaranteed perfectly.
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[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] The present invention proposes a sensor detection signal filtering method. In practical application, firstly, signal amplification processing is performed on each analog signal obtained by the continuous detection of the sensor; then, digital-to-analog conversion is performed on each analog signal after the amplification processing to obtain the corresponding Each sensing data; then, for each sensing data, apply the data bit right shift method to remove the jumping bits in the sensing data, and update each sensing data; finally, filter processing is performed on each sensing data, and the actual execution of the filtering process ,Such as figure 1 As shown, first, the initialization parameters Avg and New are equal to 0, the initialization parameters Buf1, ..., Bufn, ..., BufN are all equal to 0, and the initializ...
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The invention relates to a sensing detection signal filtering method. A logic filtering processing scheme is designed to process the sensing data corresponding to the analog signal obtained by the sensor in real time, fully considering the fluctuation change of the sensing data detection, and effectively improving the sensing detection data. The accuracy of the pressure detection system is further designed based on this method. Through the collaborative processing between the designed modules, the noise interference can be effectively reduced and the accuracy of the pressure detection result is guaranteed. In addition, the present invention is further based on the pressure sensor. The electronic scale application makes full use of the high precision of the designed pressure sensor detection results, thus effectively ensuring the stability of the electronic scale in actual work.
Description
technical field [0001] The invention relates to a sensing detection signal filtering method, a pressure detection system and its application, and belongs to the technical field of sensing detection. Background technique [0002] A sensor is a detection device that can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, and display. , recording and control requirements. [0003] A pressure sensor is a sensing device that senses a pressure signal. The pressure is converted into an electrical signal, and then the final pressure value is obtained according to the obtained electrical signal. However, in practical applications, the existing pressure sensors have low detection accuracy and are in In the actual weighing process, it is often greatly affected by the surroundings, and the measurement a...
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IPC IPC(8): G01L1/22G01G3/14G01G3/147H03H7/09
CPCG01G3/1404G01G3/147G01L1/2256G01L1/2262H03H7/09
Inventor 张立新陆松杨方方朱节中唐玥
Owner 深圳市深芯扬电子有限公司