Current situation of coal mine wireless communication technology and its development

Application status of various mine-used wireless communication technologies was analyzed, including wireless communication technologies of PHS, WiFi, TD-SCDMA, WCDMA and Femtocell. A mine-used WCDMA wireless communication system based on Femtocell was put forward according to environment characteristics of coal mine underground, key technologies and advantages of the system were introduced in details. Finally, development trend of mine-used wireless communication technology was summarized.