Wireless data acquisition system applied in aircrafts´ detection

The paper gives a method that is applied for the wireless data real-time transmission of aircrafts´ detection, and supplies detailed design of the system. The wireless data acquisition system is based on embedded structure, and it employs industrial ARM core processor of 32bit. In order to improve fast response, the system can transplant real time OS. The system supports 16 analog input channels and 32 digital input channels, and the analog input´s resolution is 16bit not only for DC signal but for AC signal. The system transmits data via GPRS network. To enhance security of data, all data transmitted are encrypted by means of 3DES arithmetic.