Alarm system having bidirectional communication with secured area
First Claim
1. A security system comprising a master alarm unit for location in a secured area, the unit including means for telephone connection with a central control station, multiple remote detectors for location in different zones in the secured area, at least some of the remote detectors having a microphone for listening in to the zone where located, and means for operationally connecting the detectors with the master unit such that on activation of the master unit due to activation of at least one remote detector, the central control station receives a function signal from the master unit and is enabled to identify which remote detector is activated, the master unit including a speaker phone with an amplifier for selective operation in a high-volume output mode, and means in the master unit for selectively responding to a signal from the central control system to permit operation in a high-volume output mode.
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Accused Products
Abstract
A security system which includes a master unit for communication with a central control station by telephone and provides for a plurality of remote detectors located in different zones of a secured area to be selectively wired. The remote detectors communicate through the main power supply with a master unit which is powered by the mains. Microphones in the remote detectors can be selectively operated through the master unit as activated by the central control station to listen in to different zones to permit for identification of a security breach in different zones. A high-volume output mode speaker phone is provided to the master unit. Feedback circuitry generates audible signals when the system is armed or disarmed remotely. Separate activation of interior and perimeter detectors can be effected.
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Citations
40 Claims
- 1. A security system comprising a master alarm unit for location in a secured area, the unit including means for telephone connection with a central control station, multiple remote detectors for location in different zones in the secured area, at least some of the remote detectors having a microphone for listening in to the zone where located, and means for operationally connecting the detectors with the master unit such that on activation of the master unit due to activation of at least one remote detector, the central control station receives a function signal from the master unit and is enabled to identify which remote detector is activated, the master unit including a speaker phone with an amplifier for selective operation in a high-volume output mode, and means in the master unit for selectively responding to a signal from the central control system to permit operation in a high-volume output mode.
- 16. A security system comprising a master alarm unit for location in a secured area, the unit including means for telephone connection with a central control station, multiple remote detectors for location in different zones in the secured area, at least some remote detector units including a microphone for listening in to the zone where located, means for operationally connecting the detector units with the master unit to transmit a function signal from the master unit due to activation of at least one remote detector to the central control station, the master unit including a switch for selectively signalling the central control station as a function signal a need for the emergency services of at least one of the police, medical or fire departments, and additional switches for signalling as a function signal a silent duress and a test signal, at least some of the switches being operable by a user selectively from or remotely of the secured area, and wherein the central control station receives a function signal from the master unit and is enabled to identify the source of the function signal, and wherein the master unit includes a speaker phone with an amplifier for selective operation in a high-volume output mode, and means in the master unit for selectively responding to a signal from the central control system to permit operation in the high-volume output mode.
- 20. A master alarm unit for location in a secured area and for operation in a security system, the unit comprising means for telephone connection with a central control station, including a speaker phone with an amplifier for selective operation in a high-volume output mode, and means for selectively responding to a signal from the central control system to permit operation in the high-volume output mode, and means for operationally connecting multiple remote detectors for location in different zones in the secured area with the unit such that on activation of the unit due to activation of at least one remote detector, the central control station receives a function signal from the unit and is enabled to identify which remote detector is activated.
- 23. A method for securing an area with a security system comprising the steps of locating a master alarm unit in the secured area connecting the unit by telephone with a central control station, connecting multiple remote detectors located in different zones in the secured area with the master unit such that on activation of the master unit due to activation of at least one of the remote detectors, the central control station receives a function signal from the master unit and is enabled to identify which remote detector is activated, listening in to one or more of the zones wherein at least some remote detectors are located, and amplifying signals from the remote detectors with an amplifier for selective operation in a high-volume mode, in response to a signal from the central control system.
- 30. A security system comprising a master alarm unit for location in a secured area, the unit including means for telephone connection with a central control station, multiple remote detectors for location in different zones in the secured area, at least some of the remote detectors having a microphone for listening in to the zone where located, and means for operationally connecting the detectors with the master unit such that on activation of the master unit due to activation of at least one remote detector, the central control station receives a function signal from the master unit and is enabled to identify which remote detector is activated, the master unit being connected to a mains power supply to the secured area, and wherein microphones in the remote detector units are connected to the master unit through a line carrier to the mains power supply in the secured area.
Specification