Personnel monitoring man-down alarm and location system
First Claim
1. A personnel activity sensor and alarm system adapted to be worn by user personnel, comprising:
- (a) a housing adapted to be attached to the user personnel and having therein motion sensor means being operative in any plane and capable of detecting motion of said housing and providing an electrical output signal reflecting any motion detected thereby;
(b) reset timer and control logic circuitry being located in said housing and being disposed to receive said electrical output signal of said motion sensor means and developing an electrical alert command signal responsive to the absence of detected motion of said housing for a predetermined period of time; and
(c) a portable radio transmitter being coupled in interactive relation with said reset timer and control logic circuitry and upon receiving said electrical alert command signal providing a radio alarm signal output indicating an emergency in response to said electrical alert command signal, whereby said radio alert signal output is transmitted only when said reset timer and control logic circuitry reaches an alarm condition.
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Accused Products
Abstract
A personnel activity sensor and alarm system is provided which incorporates one or more remote personnel safety units each incorporating a multi-axis motion detector and reset timing and logic circuit coupled with a radio transmitter or transceiver. Under the command of the logic circuit, the radio 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 is also provided which incorporates a radio transceiver to which is coupled control logic circuitry for commanding transmission of radio integration and control signals to the radio receiver 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 is also provided for computerized control of the entire system as well as for compiling data, monitoring personnel location, etc. This system is designed for use on conventional radio systems which may include relay of alarm signal through fixed or mobile repeaters and may be configured as part of a trunking radio radio system.
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Citations
25 Claims
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1. A personnel activity sensor and alarm system adapted to be worn by user personnel, comprising:
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(a) a housing adapted to be attached to the user personnel and having therein motion sensor means being operative in any plane and capable of detecting motion of said housing and providing an electrical output signal reflecting any motion detected thereby; (b) reset timer and control logic circuitry being located in said housing and being disposed to receive said electrical output signal of said motion sensor means and developing an electrical alert command signal responsive to the absence of detected motion of said housing for a predetermined period of time; and (c) a portable radio transmitter being coupled in interactive relation with said reset timer and control logic circuitry and upon receiving said electrical alert command signal providing a radio alarm signal output indicating an emergency in response to said electrical alert command signal, whereby said radio alert signal output is transmitted only when said reset timer and control logic circuitry reaches an alarm condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A personnel activity sensor and alarm system comprising:
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(a) at least one remote personnel unit comprising; (1) motion sensor means being operative in any plane and capable of detecting motion and providing an output signal reflecting any motion detected thereby; (2) control circuitry receiving said output signal of said motion sensor means and developing an alert command signal responsive to the absence of detected motion for a predetermined period of time; and (3) a portable radio transceiver being coupled in interactive relation with said control circuitry and providing a radio alert signal output in response to said alert command signal; and (b) a base station comprising; (1) a base station transceiver for receiving radio signals from and transmitting radio signals to each of said remote personnel units, said base station transceiver incorporating transmit/receive switching circuitry for the transmitter and receiver circuits thereof; (2) control circuitry being coupled in command relation with said base station transmitter circuit and with said transmit/receive switching circuit and being coupled in signal data input relation with said base station receiver circuit, said control circuitry inducing said base station transmitter circuit to transmit command signals to said control circuitry of said remote personnel units; (3) a computer interface circuit being coupled with said control circuitry; and (4) a computer being coupled with said computer interface circuitry and being disposed in controlling relation with said control circuitry. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A personnel activity sensor and alarm system adapted to be worn by user personnel, comprising:
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(a) at least one remote personnel unit comprising; (1) a housing adapted to be attached to the user personnel and having therein motion sensor means being operative in any plane and capable of detecting motion of said housing and providing an electrical output signal reflecting any motion detected thereby; (2) reset timer and control logic circuitry being located in said housing and being disposed to receive said electrical output signal of said motion sensor means and developing an electrical alert command signal responsive to the absence of detected motion of said housing for a predetermined period of time; and (3) a portable radio transmitter being coupled in interactive relation with said reset timer and control logic circuitry and upon receiving said electrical alert command signal providing a radio alarm signal output indicating an emergency in response to said electrical alert command signal, whereby said radio alert signal output is transmitted only when said reset timer and control logic circuitry reaches an alarm condition; and (b) a base station comprising; (1) a base station transceiver for receiving radio signals from and transmitting radio signals to each of said remote personnel units, said base station transceiver incorporating transmit/receive switching circuitry for the transmitter and receiver circuits thereof; and (2) control circuitry being coupled in command relation with said base station transmitter circuit and with said transmit/receive switching circuit and being coupled in signal data input relation with said base station receiver circuit, said control circuitry inducing said base station transmitter circuit to transmit command signals to said control circuitry of said remote personnel units. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification