【摘要】 针对目前国内煤矿占地面积大、节点分散、节点间距离远和测量环境恶劣的特点,开发了基于GPRS和CAN总线的煤矿井下安全监控系统,给出了其总体结构框图。在介绍系统组成和工作原理的基础上,对矿井信号检测、CAN总线节点及MC55通讯接口硬件电路的设计做了详细阐述。实际运行证明该系统具有良好的可靠性和抗干扰性,能更好地监控井下煤矿生产的运行状态,从而为国内煤炭行业的安全生产提供一个好的解决方案。更多还原

【Abstract】 To the large area,node dispersedness,bad survey environment of the present domestic coal mine,this paper designed a safety surveillance system based on GPRS and CAN bus under coal mine,and presented the general structure diagram of the system.The hardware circuit design was expatiated in detail,which was based on introducing constitution and working principle of the system.The experiment results show the system possesses good reliability and anti-jamming,and it can also monitor the working status of mine production,so it can provide a good solution for safety production of coal industry.更多还原