PERSONNEL MONITORING MAN-DOWN ALARM AND LOCATION SYSTEM

摘要

A personnel activity sensor and alarm system (10) is provided which incorporates one or more remote personnel safety units each incorporating a multi-axis motion detector (14) and reset timer (26) and logic circuit (28) coupled with a radio transmitter (36) or transceiver (68). Under the command of the logic circuit (28) the radio transmitter (36) automatically transmits an alarm signal and causes the circuitry to generate a local audio signal in the event of personnel inactivity for a predetermined period of time. This enables personnel assistance to be initiated without delay. A base station (12) is also provided which incorporates a radio transceiver (608) to which is coupled control logic circuitry (72) for commanding transmission of radio integration and control signals to the radio receiver (38) of the remote personnel units for acknowledgment of alert signal reception and for cancellation of the radio alarm signal to clear the radio channel for other activities. A computer and computer interface (70) is also provided.