Patent ID: 9704378
Date: 2017-07-11
CPC Classifications: G08B

Claim:
1. A rescuer locator using a bidirectional signal transmitter, comprising: a signal transmitter which includes at least one among a light emitting unit, a sound output unit and a vibration module, and a center button unit, a chip set, a signal transmission and reception module, a motion detection sensor and a timer and operates by a battery; a base unit which includes at least one among a display unit, a center button unit, a direction key unit, a sound output unit, a light emitting unit and a vibration module, and a chip set, and a signal transmission and reception module and operates by a battery; and an RFID tag and an RFID reader configured to display the position distribution of rescuers on the display unit of the base unit, in which the signal transmitter and the base unit operate with an RFID provided at a disaster spot, wherein a danger signal is wirelessly transmitted using a signal transmission and reception module and a center button unit disposed at the signal transmitter and the base unit, operating a sound output unit, a light emitting unit and a vibration module provided at the base unit or the signal transmitter, and in the signal transmitter, if there is not any motion for a predetermined time in a rescuer who has been dispatched to a disaster spot, a danger signal is first transmitted automatically from the signal transmission and reception module to the base unit at a time interval set by a chip set disposed at the signal transmitter, operating the display unit, the sound output unit, the light emitting unit or the vibration module provided at the base unit, and if any motion is not detected in a corresponding rescuer, the sound output unit, the light emitting unit or the vibration module of the base unit and the signal transmitter are second operated, searching the rescuer.