Design On Interlock System With Wind, Gas And Electricity Based On The Remote Network In Coal Mine

As the main energy, coal has been played an important role on economic constructing in our country, with the rising requirement for quantity of coal mining , "safety in production " has become the most important task in mine production, in recent years, both master and slave local fans applied to digging face in the mine have become the prerequisite equipment in production in many coal mine (especially in the gas-logged coal mine), more and more centralized monitoring systems, with the KJ66 system as the representative, have been applied to coal mine to realize centralized supervision. At the same time, many experts in the safety field have applied intelligent control to fault diagnosis, aeration, monitoring and so on to reduce accident rate in the mine.Aiming at this situation in coal mine , intelligent system on interlock system with wind , electricity and gas based on the remote network is designed in this article .the whole system is composed of master controller and slave controller, slave controller is an intrinsically apparatus, with the MCS-51 8051 mcu ( microcontroller unit) as the master-control unit and intelligent control as theory direction, it realizes many functions, such as control to peripherally safe equipment, fault diagnosis, communication and so on . master controller, as a general computer, mainly realizes communication and real-time monitoring.In this article, a rule knowledge base is set up firstly according to expert knowledge base theory, this knowledge base is the interlocked control network with wind, electricity and gas. Altogether there are 14 elements in this network, including master local fan, slave local fan, digging face, power supplies, 5 different sensors and so on. Subsequently, rough theory is applied to reduct knowledge until to deduce to a minimum decision set. secondly, the design method and thought of hardware and software in slave controller is introduced in detail. The hardware design part includes 6 blocks, which are 8051 resource expander, power supplier, control, display & alarm, communication and peripherally safe design, in the part of the software design, one thought with modularization and ento-ectad embedded progra applied, main routine flow diagram, parts of subroutine flow diagram and 8 layer program thought in main routine is given. Next, all anti-jamming methods with hardware and software in slave controller were expatiated. at the same time, realizing method of RS-232 communication and program ways about real-time monitoring & fault diagnosis in master controller are introduced. Finally, the debug way and test result of the whole system is discussed in the article .After debugging and testing, this system has accomplished all anticipative control & interlock, and communication between master and slave controller. With the well performance, the system has many advantages such as intelligence, integrated functions, well interlocking, it has a practical and important meaning to safe produce in mine.