基于Contiki的无线传感器网络的6LoWPAN子网和互联网互联研究

Research on Connectivity Between 6Lo WPAN Subset in Wireless Sensor Network and Internet Based on Contiki

无线传感器网络是物联网的重要组成部分,主要通过传感器感受外界环境,同时将测量参数通过无线媒介传递给后台服务器,并且传感器节点之间可以组网完成数据路由功能.传统的IP协议栈并不适合资源和能量受限的无线传感器节点,6Lo WPAN技术主要完成IPv6互联网与无线传感器网络之间协议和数据的转换.通过在传感器节点和嵌入式网关中间引入Contiki操作系统以及合适的IPv6协议栈可以很好地实现无线传感器网络和Internet的互联.实现了基于Contiki的CC2530网关节点的u IP协议栈,并设计了UDP通信协议,针对设计方案搭建合理的测试环境,并采用PING命令进行了连通性测试实验.

Wireless sensor network( WSN) is one of the important parts of the Internet of Things,which mainly detects the outside environment through sensors and passes the measurement parameters to the server through wireless medium. The sensor nodes can be connected together to form the data network routing. The traditional IP protocol stack is not suitable for wireless sensor nodes because of its limited resources and energy. 6 Lo WPAN technology is mainly used to complete the conversion between IPv6 Internet and WSN protocol and data. By introducing the Contiki operating system and the appropriate IPv6 protocol stack between the sensor nodes and the embedded gateway,the interconnection between WSN and the Internet can be well implemented. In this paper,the u IP protocol stack of CC2530 gateway based on Contiki is implemented,and the UDP communication protocol is designed.The test environment is set up according to the design scheme,and the connectivity test is carried out by using the PING command.