System Design Of Distributed Control Electrical Prospecting

In recent years, the water inrush accident happens occasionally and brings enormous harm to the people's lives and properties.Therefore,it has significance to the coal mine safety in production through the electric prospecting research mine pit subsurface geology structure, forecast the flood occurrence.Distributed Control System of electrical prospecting uses the Master-slave network structure, controls each intelligent electrode work by the upper Host.Through the power supply electrode in underground establishment stable electric field,and gathers the multi-spot data by the dispersible gathering electrode,then transmits these data to the Host through the RS485 bus.After the Host receives the data, it analyses and processes and draws curve graph of the resistivity to these data,thus infers the possible subsurface geologic conformation,and find out the possible area for water inrush.This paper, though reseaching theory and construction measures about conventional electrical prospecting,high-density method and audio-frequency electrical penetration, analyse the suitable construction measures for the system,on this basis put forward Distributed Control System of electric prospecting project and Therefor, the system is divided into host controller module and intelligent electrode module.In the paper mainly aimed at the intelligent electrode of Distributed Control System to conduct the research and the design on the software and hardware.In the article has carried on the plan to the hardware electocircuit of intelligent electrode.In view of the Micro Controller Unit of the intelligent electrode, the A/D conversion circuit, the electrode working hypothesis electric circuit, the RS485 data communication electric circuit and so on carried on has designed in detail.Has selected the hardware component which the intelligent electrode needs,and built the hardware electocircuit.In intelligent electrode software design, software according to function division Main program module, A/D read-write program module, interrupt routine module, data communication program module and so on,and has carried on the programming to each module.Moreover,this paper put forward the communication solutions of the system and design the protocol about the host and intelligent electrode.Finally has carried on the debugging and testing the software and hardware of the intelligent electrode .Distributed Control System of electrical prospecting which has kinds of measures adapt to coal mine electric prospecting, It can monitor and forecast the mine water.