环境监测系统通信协议测试与分析

TESTING AND ANALYSIS ON COMMUNICATION PROTOCOLS OF ENVIRONMENTAL MONITORING SYSTEM

环境监测系统是当前物联网在环境领域的一个重要应用。现场数据采集仪对污染排放点进行实时监测和采集,通过各种通信网络实时发送到后端服务器进行处理。该系统从底层逐级向上可分为现场数据采集仪(现场机)、通信网络及监控中心(上位机)三层组成。通过测试工具SilkPerformer模拟现场机与上位机之间指令交互,验证通信协议符合性;以及通过对通信协议进行压力测试,考察交互的响应时间及系统性能。

Environmental monitoring system is a substantial application of current EPCglobal network in environmental field. Real-time monitoring and collection against pollution discharge points are performed by site-data acquisition instnunents, and the data are sent to back-end server timely through various communication networks for processing. The system consists of three layers bottom up, including site-data acquisition instrument （lower computer）, communication network and control centre （upper computer）. In this paper we verified the conformance of communication protocols by simulating instruction interactions between the lower computers and upper computers using testing tool SilkPerformer, and examined the response time of interaction and system performance through the stress tests upon the communication protocols.