无线分布式存储测试系统的设计

Design of Wireless Distributed Memory Test System

针对点阵式测量法在进行场信号测试时存在的各测点时间信息不同步的问题,设计了一个由数据控制中心和现场测试子系统组成的具有时空场测试功能的无线分布式存储测试系统。该系统包括数据控制模块、无线通信模块、译码控制模块、定位信标信号发射模块、电源模块和时间同步模块,各模块间采用串行总线进行数据通信。实验表明该系统的时间同步精度达到100μs级,节点的定位精度为0.5 m,且具有较高的可靠性与稳定性,在国防、通信及气象领域有广阔的应用前景。

Because when using the method of the traditional dot matrix＇s measurement to test the Field signals,it exists the problem that the time information is not synchronized,the article designs a wireless distributed memory test system which formed by data control center and field testing system.The system includes such modular as data control,wireless communication,decoding control,location beacon,power supply and time synchronization,each modular communicated by serial bus.The experiment shows that the system has high reliability and stability,and the analysis of experimental data show that the time synchronization accuracy is within 100 microseconds,the node positioning accuracy is up to 50 cm.It has a higher promotional value in national defense,communication and Meteorological area.