基于无线传感网的煤层气排采实时监测监控系统设计

Design of real-time monitoring and monitoring system for CBM production based on WSN

针对煤层气排采现场分散、实时通信和生产数据采集困难等问题,提出用无线传感网技术实现对现场数据采集、数据传输、实时监测监控、指令下达、指令执行等管理工作的系统设计。针对无线传感器网络通信易受干扰、通信距离受限、无线传感器节点寿命有限等问题,提出采用我国自主研发的龙芯CPU、C–MAC协议及基于该技术的通用无线传感器节点、无线网关、中继器等产品作为本设计的主选产品,解决无线传感网络应用存在的问题。针对排采现场需采集的数据较多且各异,设计时在叶节点无线传感器中配置串口、并口、USB口等通信接口。在设计后台管理系统时引用冗余技术和概率统计理论算法提高系统可靠性。

For difficulties including the on-site dispersion of CBM production,real-time communication and production data acquisition,the paper proposes that the wireless sensor network technology can be used to realize the system design for on-site data acquisition,data transmission,real-time monitoring,instruction issuing and instruction execution.Because the wireless sensor network communication is susceptible to interference,the communication distance is limited and the service life of the wireless sensor node is also limited,the paper suggests that the self-developed Loongson CPU,C-MAC protocol and products including general wireless sensor nodes,wireless gateways and relays based on the technology can be considered as the main products for this design so as to solve the problems existing in the wireless sensor network application.As quite a number of different data needs to be collected on site,communication ports such as serial ports,parallel ports and USB ports are configured in leaf nodes of the wireless sensor during the design.The redundancy technology and the probabilistic statistical theory algorithm are used in the design of the back-end management system to improve the system reliability.