Research On Sensor Data Acquisition And Transmission Technology Based On FPGA

An FPGA–based sensor data acquisition and transmission system is designed in this paper combined with current technology developments of airborne sensor data acquisition terminal and transmission system both at home and abroad. This paper deeply researches on the LMS algorithm and the Least squares algorithm, introduces the information standard and word format of ARINC429 aviation data bus and researches on the related theories of communication error control. Based on the work above, A design of sensor data acquisition system based on FPGA is designed, Taking Virtex series FPGA of Xilinx as the core, the AGC,zero bias and the nonlinear compensation of signal,all these improve the accuracy of data collection of the collection terminal. ARINC429 conmmunication interface are also realized with the cyclic block codes to make system intelligent correction. Disigned secondary ring network based on ARINC429 and RS485 to achieve collection of network information transmission and data sharing between the terminal. Finally, the hardware and software of each module are tested in laboratory environment.