Review and Prospect of Technologies of Automation and Informatization of Coal Mine

At present, coal accounts for 74.29% in energy production and 71.26% in energy consumption in China. It is a kind of energy of cheap price, supply-security and capable of cleanly being used. It has the maximum ratio of production and storage comparing with petroleum and gas, and the scale of energies such as nuclear, hydropower and wind power is too small. So coal will be main energy in China. During "the 11th five-year plan", technologies and products have gotten breakthrough and rapid development in coal mine safety monitoring and control system, underground personnel position monitoring system, coal production remote monitoring system, whole mine mobile communication system and unattended remote monitoring and control system that they are playing important functions in safety production of coal mine. In the future, further research of technologies should be made in sensor arrangement method of no-blind area, major disaster early-waring technologies for gas, fire and rock burst based on safety monitoring and control system, remote control technology of manless working face, intrinsic safety communication technologies of wireless communication and optical fiber, accurate personnel positioning technology and life-dectecting technology of coal mine underground and coal mine safety production management information system based on 3D GIS.