基于无线传感器网络节点采集存储系统设计

Design of Acquisition System Based on Wireless Sensor Network Node

摘要:

无线传感器网络是当前前沿热点研究领域；随着无线传感器网络的发展,每一个节点采集信号的精度和速率成为关键因素；本设计以FPGA、DSP作为控制核心,实现了一种可对多路信号同时高速采集的系统,采样率为72 kHz,利用流水线技术对混合编帧后的数据进行存储,存储速率为6.282 MB/s,以解决数据量传送速率的问题,并利用无线传输将传感器节点信息传入汇聚节点输出；测试结果表明:该设计可以完成对多路信号的同时采集和存储且整个系统稳定可靠。

Abstract:

Wireless sensor networks (WSN) is a hot spot in current frontier research field. With the development of wireless sensor networks, precision and speed of each node become a key factor in signal acquisition. This design take FPGA and DSP as the control core, realizes a system of multiple signals at the same time of high speed acquisition, the sampling rate of 72 kHz. After using the pipeline technology for mix framing of data for storage, storage rate of 6.282MB / s, solve the problem of data transfer rate. And the use of wireless sensor nodes transmit information into the sink output .Test results showed that:the design of the multi-channel signal can be completed simultaneously with the acquisition and storage, system is reliable.