中文摘要：

针对无线传感器网络系统中各模块之间通信的特点,为了方便GPS、电子罗盘能同时接收指令,选用EXAR公司生产的XR16L788通用异步接收/发射器,制定了串口扩展通信方案;选用DM9000A扩展网络接口以适应不同应用环境。试验结果表明该方案可以满足遥控器与智能遥控小车、GPS、电子罗盘间的通信,遥控器可以同时收到GPS数据、电子罗盘数据,确定目标位置,引导小车寻找目标。

英文摘要：

Considering the characteristic of communication in real-time between each module in the wireless sensor networks system,In order to ensure that the GPS,electronic compass can also receive instructions,an extend proposal of serial communication port which adpots XR16L788 UART chip produced by EXAR company is presented and implemented and DM9000A expand the network interface selected to adapt to different application environments.The testing result shows that the proposal can meet the requirement of real-time communication between the remote and each external micro-combat unit,the intelligent remote small car,GPS,Electronic compass,remote control car also receive GPS data,electronic compass data to determine the target location and guide the car to find target.