Portable security system

• US 5,257,007 A
• Filed: 10/01/1991
• Issued: 10/26/1993
• Est. Priority Date: 10/01/1991
• Status: Expired due to Fees

• Current Assignee: MTEC Corporation
• Original Assignee: MTEC Corporation
• Inventors: Borsos, Gregory J., Steil, David J.
• Primary Examiner(s): Crosland, Donnie L.
• Application Number:
  US07/769,605
• Time in Patent Office: 756 Days
• Field of Search: 340/539, 340/531, 340/538, 340/540, 340/541, 340/546, 340/693
• US Class Current: 340/539.3
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence

Abstract

A fully hand portable security system includes a plurality of radio transmitter equipped detectors with batteries, configured to generate one or more radio signals indicating the sensing of a potentially hazardous environmental condition by the detector and a central controller including a weather resistant housing including a radio receiver, a processor and power supply circuitry, operator audible and visible alerting devices and connectors activating or deactivating various optional or other devices at the location and transmitting alarm or other trouble warning message to remote location. The controller is configured to be powered by either AC or DC power supply, including an external, hand portable battery providing a multiday power supply for operating the system for at least one week. Operation of the system is as simple as carrying the components to the area to be protected, hand install the detectors about the area, connecting the controller to the selected power supply and turning the controller on. The preferred system can be configured to automatically initialize itself and to begin surveillance operations. The system is removed by simply picking up and carrying away the detectors and controller after coupling the controller from a power supply, if necessary.

Claims

1. A portable central controller for a portable security system comprising:

a hand portable housing;

a radio receiver circuit within the housing;

a signal processor circuit within the housing configured to analyze radio signals received by the receiver circuit to identify an alarm report signal transmitted by any of a plurality of separate, radio signal transmitting detectors and to identify the detector of the plurality transmitting any alarm report signal identified, the signal processor circuit being further configured to generate an operator alarm device activation signal in response to an identified alarm report signal; and

a power circuit in the housing configured to selectively power the controller from either a DC power source external to the housing or an AC power source external to the housing.

2. The controller of claim 1 further comprising multi-conductor connector means coupled with the power supply circuit and accessible from outside the housing for releasably coupling the power circuit with a power source external to the housing.

3. The controller of claim 2 wherein the multi-conductor connector means is a single connector having a first plurality of conductors allotted to releasably couple the controller with an AC power source external to the housing and a second plurality of conductive allotted to releasably couple the controller with a DC power source external to the housing.

4. The controller of claim 1 in a portable wireless security system, the system further comprising the plurality of separate, radio signal transmitting detectors, each detector including a power source, a sensor, circuitry coupled to the sensor and power source, the circuitry being configured to generate and transmit an alarm report radio signal in response to a sensed, predetermined environmental condition, the radio signal being coded to identify the individual transmitting detector.

5. The controller of claim 1 further comprising an audible alarm warning device supported by the housing and activated by the processing circuit in response to an identified alarm signal.

6. The controller of claim 1 further comprising a visible alarm warning device supported by the housing and activated by the processing circuit in response to an identified alarm signal.

7. The controller of claim 1 further comprising at least one battery within the housing, the one battery being coupled with the power circuit and powering the controller.

8. The controller of claim 7 in combination with a multi-conductor cable having a first end with a connector adapted for releasable coupling with the controller and a second end adapted for coupling with a power supply external to the connector.

9. The controller and multi-conductor cable combination of claim 8 further comprising an external DC battery the controller through the second end of the multi-conductor cable, the DC battery having a capacity sufficient to power the controller continuously for at least several days in a monitoring condition and to thereafter power the controller continuously for five minutes while the controller is in full alarm.

10. The controller of claim 1 further comprising a visual display on the housing, the signal processing circuit being configured to display sequentially the identity of each detector transmitting an alarm report in order of identification of the alarm reports by the signal processing circuit.

11. The controller of claim 1 in combination with a separate shunt trip circuit breaker having an activation signal connector, the controller further comprising a connector accessible from the exterior of the housing and configured to mate with the shunt trip circuit breaker connector, the signal processing circuit being configured to trip the circuit breaker in response to the operator alarm device activation signal.

12. The controller of claim 2 in combination with a multi-conductor cable having a first end with a connector adapted for removable coupling with the multi-conductor connector means and a second end adapted for coupling with a power supply external to the controller.

13. The controller and multi-conductor cable combination of claim 12 further comprising an external DC battery coupled to the second end of the multi-conductor cable, the external DC battery having a capacity sufficient to power the controller continuously for at least several days in a monitoring condition and to thereafter power the controller continuously for five minutes while the controller is in full alarm.

14. The controller of claim 9 in a portable wireless security system, the system further comprising the plurality of separate, radio signal transmitting detectors, each detector including a power source, a sensor, and circuitry coupled to the sensor and power source, the circuitry being configured to generate and transmit an alarm report radio signal in response to a sensed, predetermined environmental condition, the signal being coded to identify the individual transmitting detector.

15. The controller, multi-conductor cable and external DC battery combination of claim 9 wherein the controller further comprises an audible alarm condition warning device and a visual alarm condition warning device, both warning devices being mounted to the housing so as to be audible and visible, respectively, from outside the housing, the warning devices being coupled with the power circuit and activated by the operator alarm device activation signal, the external DC battery having greater power capacity than does the internal battery.

16. The controller and shunt trip circuit breaker combination of claim 11 wherein the circuit breaker has at least a 220 VAC capacity and wherein the controller further comprises a first releasable electrical connector exposed on the housing and electrically coupled with the power circuit and an AC plug receptacle exposed on the housing and electrically coupled with the first releasable electrical connector so as to provide alternating current fed into the first releasable electrical connection from outside the controller through the AC plug receptacle from the controller.

17. The portable central controller of claim 1 further comprising:

a first plurality of conductors at least partially exposed through the housing and coupled with the power circuit, the power circuit being configured to convert alternating current received through the first pair of conductors from an AC power source outside the housing into direct current powering the controller; and

a second plurality of conductors separate from the first plurality and also at least partially exposed through the housing and coupled with the power circuit, the power circuit being configured to receive direct current powering the controller from opposing poles of a DC power supply external to the housing through the second plurality of conductors.

18. The controller of claim 17 further comprising a hand portable battery DC power supply outside the housing releasably coupled with the power circuit of the controller through the second plurality of conductors.

19. The controller of claim 18 further comprising an internal battery within the housing further coupled with the power circuit simultaneously with the external battery DC power supply, the internal battery having a power storage capacity less than the hand portable battery DC supply outside the housing.

20. A method of providing temporary environmental hazard security monitoring over an extended area in which a hard-wired security system monitoring at least said environmental hazard is already installed comprising the steps of:

carrying and installing by hand about the area while the hard-wired system is inoperative, a plurality of individual detectors and a central controller, each detector being hand portable and including a sensor, a radio transmitter circuit, and a self-contained power source for independently powering the detector, the central controller being hand portable and including a housing containing a radio receiver circuit, a signal processing circuit coupled with the receiver circuit, a power circuit coupled with the processor circuit and the radio receiver circuit and having a multi-conductor connector at least partially exposed on the outside of the housing;

locating the central controller within range to receive radio signals transmitted by each of the detectors; and

electrically coupling the central controller through the connector selectively with either an external AC power supply available at the location or a hand portable external DC power supply carried to the location and activating the controller.

21. The method of claim 20 further comprising the steps of gathering up the distributed detectors, uncoupling the portable central processor from the power supply and carrying away the plurality of detectors and unplugged central processor to remove the system from the protected area after the hard-wired system is again operative.

22. The method of claim 21 wherein the central controller further includes an internal battery power supply installed in the housing so as to supply electricity to the controller and the method specifically includes the step of electrically supplying the central controller with power from the hand portable DC power supply carried to the location while the internal battery power supply remains installed in the controller.