基于FPGA的无线传感器网络控制器设计

Design of Wireless Sensor Network Controller Based on FPGA

飞行器的无线传感器布线众多,加大飞行器设计的难度,为实现无线传感的网络控制,提高使用灵活性。研究将传感器输出的标准模拟量信号通过滤波电路、模数转换电路、现场可编程闸阵列(Field Programmable Gate Array,FPGA)的AD时序控制、有限脉冲响应(Finite Impulse Response,FIR)数字滤波、数字编码以及异步FIFO缓冲处理,设计得到了基于FPGA的无线传感器网络控制器。实验分析可知,控制器的平均准确率为98.57%,漏包率为0.11%,传输速率为0.226 M/s。控制器能够高效且准确传输传感器得到的信号,并且错包漏包率近乎为0,实现飞行器灵活工作。

To improve the flexibility of wireless sensor and reduce the complexity of aircraft design caused by wiring,the control of wireless sensor network is realized.The standard analog signal output by the sensor is studied through filter circuit,analog-to-digital conversion circuit,Field Programmable Gate Array(FPGA) AD timing control,Finite Impulse Response(FIR) digital filtering,digital coding and asynchronous FIFO buffer processing,and a wireless sensor network controller based on FPGA is designed.The experimental analysis shows that the average accuracy of the controller is 98.57%,the packet leakage rate is 0.11%,and the transmission rate is 0.226 M/s.The controller can efficiently and accurately transmit the signals obtained by the sensor,and the packet error and packet leakage rate is nearly zero,so as to realize the flexible operation of the aircraft.