Security system annunciation communication delay
First Claim
1. A system for transmitting alarm notifications for use with a system in a monitored building comprising a plurality of sensors, an annunciation device and a main control unit, said main control unit communicating with each of the plurality of sensors, the annunciation device, and a central monitoring facility, the system for transmitting alarm notifications configured to perform a method comprising:
- receiving event signal data from at least one of the plurality of sensors;
processing the event signal data at the main control unit;
sending an alarm notification signal representative of the event signal from the main control unit to a receiver at the central monitoring facility;
determining whether the alarm notification signal was transmitted successfully to the receiver at the central monitoring facility, said determining comprising receiving, at the main control unit, an acknowledgement signal from the central monitoring station that the notification signal was received by the receiver; and
upon receiving the acknowledgement signal from the central monitoring facility, sending a signal from the main control unit to the annunciation device to trigger said annunciation device.
3 Assignments
0 Petitions
Accused Products
Abstract
A security system including a main control unit, a plurality of sensors and a user interface device. The main control unit communicates with a remote central monitoring station when a sensor detects an alarm event. Once the communication signal from the main control unit is successfully transmitted to the central station, a siren is sounded. Thus, the delay time to trigger the siren is dynamic based on the time it takes for successful transmission of an alarm notification to the central station. This dynamic delay accounts for transmission interruptions between the security system and the central station and allows the location of the main unit and/or the siren from being detected prior to successful alarm transmission to the central station.
10 Citations
19 Claims
-
1. A system for transmitting alarm notifications for use with a system in a monitored building comprising a plurality of sensors, an annunciation device and a main control unit, said main control unit communicating with each of the plurality of sensors, the annunciation device, and a central monitoring facility, the system for transmitting alarm notifications configured to perform a method comprising:
-
receiving event signal data from at least one of the plurality of sensors; processing the event signal data at the main control unit; sending an alarm notification signal representative of the event signal from the main control unit to a receiver at the central monitoring facility; determining whether the alarm notification signal was transmitted successfully to the receiver at the central monitoring facility, said determining comprising receiving, at the main control unit, an acknowledgement signal from the central monitoring station that the notification signal was received by the receiver; and upon receiving the acknowledgement signal from the central monitoring facility, sending a signal from the main control unit to the annunciation device to trigger said annunciation device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of providing a dynamic annunciation signal in an alarm system comprising:
-
triggering at least one of a plurality of sensors; sending event signal data from the least one of the plurality of sensors to a control unit; sending an alarm notification signal from the control unit to a monitoring facility via a communications link; waiting for the alarm notification signal from the control unit to be successfully transmitted to the monitoring facility, said waiting comprising receiving, at the control unit, an acknowledgement signal from the monitoring facility that the notification signal was received by the monitoring facility; and once the acknowledgement signal is received from the monitoring facility, sending a signal to an annunciation device communicating with the control unit to trigger the annunciation device. - View Dependent Claims (15, 16, 17, 18, 19)
-
Specification