基于ZigBee的煤矿井下预警防爆监测系统设计

Design of early-warning and explosion-proof monitoring system for coal mine environment based on ZigBee

摘要:

针对矿山井下的特殊环境,提出了一种基于ZigBee技术的煤矿井下预警防爆监测系统,实现煤矿井下环境信息和人员位置的实时监测,以减少事故发生率;井下系统采用CC2530+CC2401芯片作为ZigBee节点的核心,井下主控制器通过CAN总线实现与井上上位机的通信;上位机使用Labview软件实现程序编程,实时显示煤矿井下采集到的CH₄、CO、O₂浓度、温湿度和人员坐标等参数并进行Web发布;该系统结合了基于模糊逻辑算法的预警技术、基于物理隔离的防爆技术,同时提出了一种融合LQI的RSSI加权质心算法;实验证明该系统运行稳定可靠,提高了人员定位的精度,具有良好的应用前景。

Abstract:

An early-warning and explosion-proof monitoring system for coal mine environment is designed based on ZigBee, in view of the underground special environment. The underground system ,with CC2530 + CC2401 chip as the core of ZigBee node, realizes communication with upper computer through CAN bus by the central controller. Upper computer uses the Labview software to program and realize real-time display of the coal mine parameters including CH4, CO, O2 concentration, temperature and humidity and personnel coordinates. The early warning technology based on fuzzy logic algorithm, explosion-proof technology based on physical isolation are adopted to this system. A kind of RSSI weighted centroid algorithm mixed with LQI was put forward. Experiment proved that this system runs stably, improving the personnel positioning accuracy and has a good prospect of application.