초록 ▼

A personnel locator and display system for indicating on a status board the room numbers where designated key individuals are located at a given moment. Small portable transmitters, either ultrasonic or radio frequency, are worn by the key individuals, and receivers are provided in the rooms. The va

A personnel locator and display system for indicating on a status board the room numbers where designated key individuals are located at a given moment. Small portable transmitters, either ultrasonic or radio frequency, are worn by the key individuals, and receivers are provided in the rooms. The various transmitters emit pulses according to a preprogrammed timing sequence, and a decoding logic network connected to receive signals received in the rooms identifies the specific transmitter and room number and displays same on a status board. A programmer-recharger unit programs the pulse timing for each transmitter for identification of the wearer.

대표청구항 ▼

A personnel locating system, comprising: a plurality of transmitter units adapted to be worn or carried by personnel whose locations are to be determined, each of said transmitter units adapted for transmitting signals having a common frequency during separate predetermined time intervals on a recur

A personnel locating system, comprising: a plurality of transmitter units adapted to be worn or carried by personnel whose locations are to be determined, each of said transmitter units adapted for transmitting signals having a common frequency during separate predetermined time intervals on a recurring basis; a plurality of receiving means for mounting in rooms or areas to be monitored for locating the personnel, each of said receiving means operative to receive the signals transmitted by any of said transmitter units; decoder means including time reference means and operative in response to signals received by said receiving means during said predetermined time intervals to produce signals indicative of the location of said transmitter units; and display means connected to receive said location indicative signals and operative in response thereto to display the room or area locations of the personnel.