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Alarm reporting system
| Details |
Inventors: Miller, Paul David; Wood, Stuart;
Assignee: AVR Group Limited (Cheshire, GB)
Primary Examiner: Swann; Glen
Assistant Examiner:
Attorney, Agent or Firm: Oliff & Berridge, PLC
A controlling interface unit is linked to a plurality of event sensors associated with a premises. There is at least one manner of establishing communication, using wired communication lines or radio transmissions between this interface unit and, on the one hand, a remote alarm receiving center for monitoring the sensors at the premises, and, on the other hand, a remote auxiliary facility for filtering out potential false alarms from those premises. The interface unit is capable of routing signals originating from a selected type of sensor to the auxiliary filtering facility instead of or in addition to transmitting the same signals to the alarm receiving center. Depending on the circumstances, feedback signals may then be transmitted from the auxiliary filtering facility to the controlling interface unit to negate an alarm condition. Optionally, a memory unit may be linked to the controlling interface unit to store data from the event sensors for a limited time period. This data is then transmitted to the auxiliary filtering facility along with any signal from the selected type of sensor to assist in determination of whether the alarm is valid. |
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DETAILED DESCRIPTION OF PREFERRED EMBODIMENT The illustrated system comprises a controlling interface unit (3) linked to respective interfaces (4), (5) and (6) to a public telephone network (7), to a radio communication network (8), (9) and (13), and to a data network (10), which in this case is indicated as being the public integrated services digital network (ISDN), but could alternatively be a private data network.
The controlling interface unit (3) controls communication to and from a plurality of sensors (1) at a local premises and also to and from an alarm receiving centre (11) and to and from an alarm filtering centre (14) via one or more types of data path.
The sensors (1), such as intruder alarm sensors, personal attack sensors or fire detection sensors, at the local premises convey information to an alarm control panel (2) acting as a local terminal linked to the controlling interface unit (3).
When an event is to be reported to a remote central facility, the panel (2) signals to the controlling interface unit (3).
Depending upon the type of event to which the signal relates the controlling interface unit (3) will either send the signal only to the alarm receiving centre (11), or to both the alarm receiving centre (11) and the alarm filtering centre (14).
For example, signals relating to routine events such as the switching on and off of an intruder detection system may be sent only to the alarm receiving centre (11).
Fire or personal attack alarm signals, where there is a risk to life, will be communicated to the alarm receiving centre (11) and optionally also to the filtering centre (14).
In the latter case this will be only for logging purposes so that the owner or person/organisation responsible for the premises can have a full record of all alarm signals.
An intruder alarm signal, which frequently results from user error, will be transmitted to both the alarm receiving centre (11) and the alarm filtering centre (14), so that at the latter facility its veracity can be checked
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Graphic Cards 
