用于大规模实时连续监测的WSN多信道基站设计

Design of WSN Multi-channel Sink Node for Widespread Real-Time Continuous Monitoring

针对无线传感器网络大规模实时连续监测应用中存在的庞大数据传输困难、实时性不足等问题,提出了一种由单基站同时并行接收多个信道数据的网络结构,并设计了能够同时并行接收多信道数据的多信道基站节点。基站设计以FPGA作为核心,控制多个射频模块并行工作在不同信道,控制USB2.0总线实时连续传输数据给监控中心,实现大规模实时连续监测。通过搭建多信道无线传感器网络实时连续监测系统,验证了多信道基站节点的功能。

To solve the main problems of widespread real-time continuous monitoring such as large real-time data volume,a network structure of single sink node parallel receiving packages from multiple channels is put forward and the multichannel sink node is designed.In the sink node design,FPGA is the core processing chip which controls RF modules parallel working in different channels concurrently.FPGA also controls USB2.0 bus transmitting the sequential sampling data which is processed in turn through the cache to monitoring center real-timely,and the widespread real-time monitoring of wireless sensor network is realized.The function of multi-channel sink node is verified by building real-time continuous monitoring system of clustering wireless sensor network.