The Design And Realisation Of Undergrpund Postioning System Based On RFID

Coal resources,as main energy resources and fundamental raw materials, occupies anextremely strategic position in the national economy of a country. However, the highfrequency of coalmine accidents in recent years has raisen the alert to the red in this industry.Taking account of the complicated underground working environment, the personnel on theground must use advanced monitoring equipment to position the personnel and vehiclesunderground in a timely manner. Then real-time monitoring,management and dispatchingcould avoid losses resulted from negligence,tunnel plugging and vehicle collision．Evenwhen the accident occurs,monitoring eqmpment can also help the personnel on the groundformulate a rescue plan according to position of the victim,in order to avoid expansion ofdisaster and reduce the losses to minimum.Therefore,research and Implementation of theunderground location system has an important application value.This thesis uses the RFID technology to realize safety management of undergroundpersonnel and vehicles, and underground personnel positioning system based on RFID isdesigned for this purpose. This system is composed of two parts, namely hardware andsoftware. The hardware of the system is made up of the readers at the monitoring points onthe laneway's wall and the tags on the underground personnel or vehicles.When the tag passesthe readers, the reader can identify the tag and return such tag information to the groundcontrol center through RS485-bus.The software of system is made up of seven parts,which areAcquisition analysis services,Service configuration program,WEB Client program,WellheadLED control program, Distribution of underground equipment drawing tools, Attendanceanalysis services and SQL SERVER database system. The software can, through processingthe tag information collected, provide real time mornitoring interface and terminal control, realizing the positioning of underground personnel and vehicles. Such a system as asupplementary rescue method utilized in the underground operation management can conductthe searching work at a specific node when the accident occurs.The entire system, being a communication bridge between the personnel on the groundand underground on the basis of RFID technology, provides an advanced and practicalsolution to underground operation management,which has important practical significance tosafety production and management underground.