Design of Wireless Measurement and Control System for Spacecraft Deployment Pressure Sensor
The pressure sensor parameter acquisition of traditional spacecraft deployment tasks uses the wired connection,during the process of deployment,there is a phenomenon of the deployment mechanism winding the cable around the rotating axis.Previous-ly,it was necessary to adjust the acquisition terminal according to the cable's position to avoid the cable breakage,which has the characteristics of extremely inconvenient,single channel acquisition,inconvenient to multi-channel acquisition and data integration processing.In order to solve the above problems,an embedded and distributed wireless pressure sensor parameter acquisition system based on ESP8266 and Lab VIEW is developed,which designs the signal conditioning circuit and ADC acquisition module,the ESP8266 wireless module is used to deploy the multi-point distributed networking.The terminal acquisition software is based on Lab-VIEW virtual instrument platform.,which adopts the multithreading and low coupling QMH queue software framework and function module,it is convenience for the developers to achieve the functions of the equipment communication,sensor calibration,data acquisi-tion and processing.The PSP server is used to dynamically share the test data in real time,realize the rapid data transmission through the network,and improve the data processing speed.The incremental integral separation PID algorithm is added to realize the linkage between the transmission mechanism and the sensor,which accurately controls the pressure parameter and the data dynamic fitting and overrun alarming.The system has the features of the stable operation,high frequency of data acquisition,high control accuracy,and engineering application value.
万方数据
维普
