传感器无线网络化接口模块设计与实现

摘要

This paper implements a physical interface module for wireless sensor network, the technical solutions include wireless com-munication unit, sensor interface unit and the video coding transmission unit, and the PXA270 embedded microprocessor chip. After the module starts, running the ad hoc routing protocols, the data output from sensor is read by RS232 interface; it encapsulates the sensor out-put data package to the UDP protocol and sends sensor data to the destination node by wireless ad hoc networks through the wireless com-munication unit. Smart sensor is connected to the Internet/Intranet with standard TCP/IP Protocol. The technical problem of sensor con-necting to network without the condition of field wiring is solved.%实现了一种传感器无线网络化接口模块,其技术方案包括无线通信单元、传感器接口单元、视频编码传输单元以及嵌入式微处理器PXA270芯片；模块启动后,自主运行自组网路由协议,通过RS232接口读取传感器的输出数据,将传感器输出数据封装到UDP协议中；通过无线通信单元,以无线自组网的方式将传感器数据发送到目的节点,将智能传感器以标准TCP/IP协议连接入到Internet/Intranet,从而解决了不具备现场布线条件下传感器接入网络的技术问题.