CAN-bus-based Remote Monitoring System Of Coal Mine

Safety has long been a basic state policy of China, is to protect the safety and health of workers and the important work of developing the productive forces. Along with the coal mine safety production work on increasing attention and Mining Bureau's own demand for modern management, mine safety monitoring system increasingly reflects its importance. Flooding has been a coal mine safe production and construction of a major threat, in the coal mine hydrology to create dynamic real-time monitoring system, the use of advanced technological equipment to enhance monitoring efforts underground hydrology, control of water hazards for the mine to provide reliable technical backing.The subject of integrated automation from the actual coal demand for coal in the hydrological monitoring to establish a complete automated monitoring system. The system uses sophisticated monitoring of coal mine monitoring program, further development of the hydrological monitoring system in underground coal mine with a monitoring station and mine intelligent sensors and other key equipment, as well as CAN-bus bus in the use of Coal Mine Monitoring System, the establishment of a complete mine monitoring system for the construction of coal mine of information to lay a solid foundation.This remote monitoring system for mine a few key technology following aspects of the study:1. The actual situation for coal production, coal mine hazard water hazards, characteristics and causes for the specific analysis of hydrological monitoring of mine pointed out the shortcomings. And in line with stable performance, simple structure, easy to implement the principles, design of the mine's overall structure of the remote monitoring system, made the main goal of this system, and analyzes the system workflow.2. Of mine monitoring station of the key technologies. According to mine their actual, proposed Cortex-M3-based mine monitoring station solution of the mining sub-station to monitor the hardware design, and each module has specific analysis and research. And for the coal mine environment is harsher conditions, of the mine monitoring station has done interface design of optical isolation and lightning protection.3. Proposed mine intelligent sensor design. Mine actually used for mining sensor, designed mine intelligent sensor interface mode, can easily be into all types of mine sensors. Intelligent sensors by more than mine CAN-bus can easily access mine monitoring station to form the underground monitoring system.4. Analyzed the mine monitoring station software architectures. According to the actual production of coal in the mine monitoring station using a safe and reliable uC/OS-II real-time embedded operating system, to ensure that sub-standing practice of mine to monitor the operation of the functional integrity, reliability.5. Proposed mine smart sensors embedded software implementations, the main realization of the software features and specific processes, focus on the CAN-bus interface, on the driving focus of the analysis done.6. The agreement made on iCAN focused research and analysis. First of all, the industry application of the popular CAN-bus protocol to do a comparative analysis, described in details, iCAN the protocol specification.