ALARM SYSTEM PROVIDING TAMPER DETERRENT SIGNALLING AND METHOD
First Claim
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1. A method of signalling a sensed alarm condition from an alarm system at a premises to a monitoring station, said method comprising:
- upon sensing said alarm condition, establishing a communications connection over a network to an alarm monitoring station, without dispatching a message signalling said alarm condition;
determining if said sensed alarm condition should only be signaled after a delay to allow disarming of said alarm; and
upon expiry of said delay and if said system has not been disarmed, dispatching a signal indicative of said sensed condition to said alarm monitoring station over said connection, which has previously been established.
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Abstract
An alarm system at a premises reduces the overall delay in signalling an alarm condition in the presence of an entry delay timer. The alarm system establishes, or commences the establishment of a network connection prior to the expiry of the entry delay. This allows an alarm message to be quickly dispatched upon expiry of the entry delay timer, or if a tamper condition is sensed.
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Citations
18 Claims
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1. A method of signalling a sensed alarm condition from an alarm system at a premises to a monitoring station, said method comprising:
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upon sensing said alarm condition, establishing a communications connection over a network to an alarm monitoring station, without dispatching a message signalling said alarm condition; determining if said sensed alarm condition should only be signaled after a delay to allow disarming of said alarm; and upon expiry of said delay and if said system has not been disarmed, dispatching a signal indicative of said sensed condition to said alarm monitoring station over said connection, which has previously been established. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating an alarm system at a premises, said method comprising:
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sensing an alarm event associated with an entry delay; upon sensing said alarm event, commencing an alarm message dispatch procedure that includes establishing a communications connection over a data network to an alarm monitoring station, without dispatching a message conclusively signalling said alarm event, and initiating an entry delay timer; and aborting said alarm dispatch procedure prior to dispatching a message conclusively signalling said alarm event, if said alarm system disarmed in said prior to expiry of said entry delay timer. - View Dependent Claims (13, 14)
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15. An alarm system for sensing and signalling sensed alarm conditions at a premises, said alarm system comprising:
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at least one detector for sensing an alarm condition; a panel in communication with said at least one detector, said panel comprising at least one processor and a network interface, said panel operable to; upon sensing said alarm event, establish a communications channel with an alarm monitoring station, without dispatching a message signalling said alarm condition; determine if said sensed condition should only be signaled after a delay to allow disarming of said alarm; and upon expiry of said delay and if said system has not been disarmed, dispatch a signal indicative of said sensed condition to said alarm monitoring station over said communications channel, which has previously been established. - View Dependent Claims (16, 17, 18)
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Specification