分析了无线通信GPRS(General Packet Radio Service)和微处理器DSP技术,提出了基于GPRS的草原生态远程监测系统设计方案,论证了一种基于DSP微处理器和GPRS网络通信技术实现远程数据传输的系统,从而实现远程数据和图像的实时监测功能.本系统的核心内容是通过TMS320LF2407A DSP控制图像、温度、湿度、风速等传感器采集数据,并将采集到的数据送到GPRS DTU(GPRS Data Transmission Unit),最终通过GPRS、Internet网络传送到控制中心,控制中心将收到数据存储,并恢复出原图像.
In order to go along the work of next generation network protocol conformance testing effectively and thorough, we bring forward a sign idea about test executing system and implement it base on Linux environment, which is obtained based ISO' criterion and method. The main function of test executing system is to execute automatically the test suit in TTCN form in course of protocol conformance testing and present the testing report in the end. In this paper,we first introduce the realization Idea of test executing system base on Linux environment and some interrelated arithmetic. We emphasize on the sign flow and implement procedure of test executing system and discuss some arithmetic for central module. Finally, we give test procedure and test result for IPv6 protocol using this test executing system.
