Study On Underground Personnel Positioning System Based On WiFi Communication Technology

The Underground Personnel Positioning System based on WiFi technology is amine integrated management applications system which use WiFi communicationtechnology for positioning technology and transmission medium, and its monitoring andmanagement platform is based on the downhole positioning management system. Byplanning the underground network, deploying the hardware of underground positioningsystem, and developing the downhole positioning management system, we are able toacquire,manage or apply the data from the positioning of downhole person andequipment This study analysed and summaried the previous researches about downholepositioning system deeply, did a detailed survey and evaluation about positioningsystem which has been applied to mine, and a comprehensive study and explore aboutthe theory and application contained in this system. Subsequently, we came up with thedesign and mine application instance for it. The papers mainly includes the followingaspects:(1) Based on the researches about the abundance of Chinese coal resources,high risk of mining work, insufficiency of function of underground personnelpositioning system, and the advancement of WiFi wireless network, we brought up aunderground personnel positioning system based on WiFi technology.(2) Discussed in detail about the characteristics of WiFi technology, and on thebasis of comparison with RFID, Zigbee, UWB three underground wireless locationtechnology, we admitted the advantage of using WiFi technology.(3) In the analysis of common positioning algorithm which is based onranging or non-ranging technology, this paper presented a precise positioning algorithm which based on the RSSI and improved Eudidean. It also presented asimple and rapid underground positioning algorithm. In conclusion, we came upwith the downhole positioning strategy, combined with two positioning algorithm,(4) On the basis of the detailed experiments and researches, and according tothe mine characteristics and engineering theory, we did the overall design, networkand functional design of underground personnel positioning system based on WiFitechnology.(5) Under the premise of experiments and researches, we accomplished thecollection, transmission, analysing and processing of the positioning data, andimprove the positioning process. We also achieved the the operation of thepositioning system and the testing of positioning strategy under the simulation ofexperimental environment.(6) Combined with mine production management needs, and based on Ekahaupositioning system, we developed and designed the Underground personnelpositioning system which is mentioned above, meanwhile, gave four seperated andinteractive subsystem.(7) On the relevant theoretical and experimental foundation, we completed thecoal mine positioning system network planning, hardware selection and positioningmanagement system designing through the analysis of the characteristics of Jinjiecoal mining and coal mine production management needs.With the rapid development of wireless location technology, wireless network,computer, automation and intelligent systems, the accuracy, stability and reliability ofunderground personnel positioning system which based on wireless technology willincrease gradually, and the system functions will near perfection. Undergroundpersonnel positioning system based on WiFi technology has incomparable advantagesover traditional underground positioning system, and application value ofmulti-technology integration.