基于4G无线通信技术的湿地水质COD在线监测节点设计  

Design of Wetland Water Quality COD Online Monitoring Node Based on 4G Wireless Communication Technology

作　　者：崔峰 张华 袁玲双 陈鑫 潘颖 Cui Feng

机构地区：[1]大庆师范学院机电工程学院,黑龙江大庆163712 [2]黑龙江省海澈环保科技有限公司,黑龙江大庆163316 [3]黑龙江省大庆生态环境监测中心,黑龙江大庆163316

出　　处：《工业控制计算机》2023年第3期72-74,共3页Industrial Control Computer

基　　金：大庆市指导性科技计划项目“基于WSN的地表水质COD在线监测系统设计与实现”(zdy-2019-63)。

摘　　要：高效动态掌握城中湿地水体COD数据对常规地表水质监测具有重要意义。针对实验室分析COD效率低下,ZigBee网络节点通信距离有限等问题,设计了基于4G无线通信技术的湿地水质COD在线监测节点。该监测节点主控MCU选用了TI公司MSP430系列超低功耗单片机,工业级COD传感器通过隔离式RS485通信接口读取传感器数据,COD数据经4G LTE DTU模块发送至云服务器。节点采用太阳能电池板和锂电池的组合供电模式,软硬件系统采取了多种低功耗设计,保证了节点长期稳定运行。经试验分析,该监测节点运行可靠,COD数据采集精度满足要求。Efficiently and dynamically grasping the COD data of urban wetland water bodies is of great significance for routine surface water quality monitoring.Aiming at the low efficiency of laboratory analysis of COD and the limited communication distance of ZigBee network nodes,an online monitoring node for wetland water quality COD based on 4G wireless communication technology is designed in this paper.The main control MCU of the monitoring node adopts TI's MSP430 series ultra-low power single-chip microcomputer.The industrial-grade COD sensor reads the sensor data through the isolated RS485 communication interface,and the COD data is sent to the cloud server through the 4G LTE DTU module.The node adopts a combined power supply mode of solar panels and lithium batteries,and the software and hardware systems adopt a variety of low-power designs to ensure long-term stable operation of the node.The test analysis shows that the monitoring node operates reliably and the COD data acquisition accuracy meets the requirements.

关 键 词：COD监测 4G无线通信 低功耗 MSP430 

分 类 号：X832[环境科学与工程—环境工程] TN929.5[电子电信—通信与信息系统]