Multi-channel signal acquisition equipment for lip language sensor

Abstract

The multi-channel signal acquisition equipment comprises a main control chip STM32, a lip language sensor signal acquisition module, a data transmission module and a data storage module, the data transmission module comprises a wired data transmission part and a wireless data transmission part, the wired data transmission part comprises an RS232 serial port transmission part and a USB2.0 transmission part, and the wireless data transmission part comprises a wireless data transmission part and a wireless data transmission part. The wireless data transmission part comprises Bluetooth V2.1 + EDR transmission, and the data storage module comprises a flash chip used for short-term data storage and an SD card used for long-term large-capacity data storage. The defects that a traditional data acquisition device is few in signal acquisition channel and data is prone to being lost are overcome, similar lip languages can be distinguished through difference signals of different sites in multi-site signal acquisition, and the lip languages can be judged more comprehensively and accurately.

Description

technical field [0001] The invention relates to the field of sensor signal acquisition, in particular to a multi-channel signal acquisition device used for a lip language sensor. Background technique [0002] The acquisition of lip language sensor signal is the basis of related lip language equipment, which is often realized by collecting the voltage signal generated by the sensor with the change of the lip. The traditional data acquisition equipment can basically complete the acquisition of voltage data, but the acquisition channel is relatively small. The lip language is only determined by a single electrical signal transmitted by a lip sensor, which often has problems such as low accuracy and difficulty in recognizing similar lip language. The transmission method is susceptible to environmental interference, has poor stability, and is prone to loss of data transmission, which greatly reduces the collection and recognition of lip language sensor signals. SUMMARY OF THE I...

AI Technical Summary

Problems solved by technology

[0002] The collection of lip language sensor signals is the basis of related lip language equipment. It is often realized by collecting the voltage signal generated by the sensor as the lip changes. Traditional data collection equipment can basically complete the collection of voltage data, but the collection channel is relatively small. Only a single electrical signal transmitted by a sensor on the lips is used to determine lip language, which often has problems such as low accuracy and difficulty in recognizing similar lip language signals. The transmission method is susceptible to environmental interference, poor stability, easy to cause loss of data transmission, greatly reducing the collection and recognition of lip sensor signals

Images