Hand-held positioning communication terminal for underground personnel

The invention provides a hand-held positioning communication terminal for underground personnel, which comprises a wireless receiving/transmitting module, an LCD (Liquid Crystal Display) display module, a speech coding/decoding module, a sensor module, a processor module and a power management module, wherein the wireless receiving/transmitting module is used for transmitting an underground personnel positioning signal and a sensor detection signal, and receiving, transmitting and storing short message data and speech communication data; the LCD display module is used for responding to a user command to input a short message, and displaying the contents of the short message and setting parameters; the speech coding/decoding module is used for acquiring a speech signal, compressing the speech signal, transmitting the compressed speech signal to the wireless receiving/transmitting module, and restoring the received speech communication data into a speech signal; the sensor module is used for detecting an underg