Gong-kuang zidonghua (Feb 2013)
Research of mine wireless broadband transmission technology
Abstract
The paper put forward that mine wireless broadband transmission technology is a key technology to meet with requirements of mobile monitoring, video and voice communication on cutting face, and proposed that mine wireless broadband transmission should meet with requirements of wide transmission bandwidth, easy to access wired broadband network, a small quantity of repeater equipments, small volume, low transmission power, good electromagnetic compatibility and safety, standardization of transmission protocol, strong adaptability of fluctuation of power voltage. It presented that leakage communication cannot be used as mine wireless broadband transmission, but as underground local communication; induction communication cannot be used as mine wireless broadband transmission, but as underground rescue communication; through-the-earth communication cannot be used as mine wireless broadband transmission, but as emergency communication of underground refuge chamber; PHS, CDMA, GSM and Bluetooth cannot be used as mine wireless broadband transmission; RFID cannot be used as mine wireless broadband transmission, but as coal mine Internet of Things, mine-used equipment management and anti-collision; ZigBee cannot be used as mine wireless broadband transmission, but as wireless transmission for mine-used sensor and precision location for moving targets such as underground personnel, rubber-tyred vehicle and electric locomotive; UWB cannot be used as mine wireless broadband transmission, but as underground life detection, anti-collision and precision location for underground moving targets such as personnel and rubber-tyred vehicle; 3G such as WCDMA, CDMA2000 and TD-SCDMA cannot be used as mine wireless broadband transmission, but as underground voice mobile communication. It proposed that mine wireless broadband transmission technology should use WiFi and 4G would become future mine wireless broadband transmission technology.
