System and method for protecting a security system

The application pertains to regional security, or monitoring, systems. More particularly, the application pertains to such systems which include circuitry to provide a level of security for self-contained monitoring systems.

Regional monitoring or security systems can be used in residential buildings to provide alarm indicating signals either locally, or to a displaced central station. Known alarms usually include a control panel with at least one display unit and keypad for use in controlling the system. In known alarm systems there is a delay associated with Exit/Entry and Security Industry Association (SIA) required dialer delays. During this time alarms are held by the panel. If a burglar locates and destroys the panel before one of the above times expires the alarm will not be sent and the system defeated.

To solve the above problem the alarm is generated when the zone is violated. It is sent as a special “delayed reporting” alarm type and includes a fixed delay time for the zone that was violated. Known implementations use a fixed delay which is usually set to a worst case value.

The alarm is then sent via either Internet or wireless communicator to an alarm receiver or an alarm transport service. The alarm is held by either the alarm transport service or the alarm receiver for the duration of the delay specified in the message plus an additional guard time to account for network transport times. Once this time runs out it is considered a real alarm.

If sent via the alarm transport service the alarm is forwarded to the central station. If sent to the receiver, the receiver releases the alarm to an automation system. If the system is disarmed before the delay has expired a cancel message is sent to either the alarm transport service or the receiver which will cancel the delivery of the delayed alarm.

FIG. 1 is a block diagram of portions of an embodiment hereof;

FIG. 2 is a block diagram with additional details as to an embodiment hereof; and

FIG. 3 is a block diagram with additional details of an alternate embodiment.

While disclosed embodiments can take many different forms, specific embodiments hereof are shown in the drawings and will be described herein in detail with the understanding that the present disclosure is to be considered as an exemplification of the principles hereof, as well as the best mode of practicing same, and is not intended to limit the claims hereof to the specific embodiment illustrated.

In a disclosed embodiment, the delay is variable and can be based on how the panel was programmed. By making the delay variable security and response time can be improved on a custom basis from installation to installation. In yet another aspect, different delays could be set for different types of sensors or detectors. Alternately, different delays could be associated with different rooms or parts of a region being monitored.

FIG. 1 illustrates aspects of a system 10 , in accordance herewith, that monitors on-going conditions in a region R. System 10 includes a control panel 14 , located in the region R, and readily accessible therein. Panel 14 is coupled, wired or wirelessly, or both to a plurality of detectors or sensors 18 in the region R. Members of the plurality 18 can include glass break detectors, motion detectors, door detectors, smoke or fire detectors, thermal detectors, or gas detectors, all without limitation.

Panel 14 can carry a local display 14 a , a keypad 14 b , control circuits 14 c coupled to the display 14 a and keypad 14 b . The control circuits 14 c can be implemented, at least in part, by one or more programmable processors 14 - 1 and associated, executable control programs or software 14 - 2 . The programs or software 14 - 2 can be stored in various types of memory units such as read-only, programmable read-only or read-write memory units.

Programmable storage 14 d can also be coupled to the control circuits 14 c . The programmable storage 14 d can include storage for delay intervals 14 - 3 wherein one or more delay intervals can be stored. Such intervals can be entered locally via the keypad 14 b , or via an interface 14 e which couples the panel 14 to members of the plurality 18 , or a wired or wireless interface 14 f through which the panel 14 can communicate with displaced elements, including a central station, discussed subsequently.

FIG. 2 illustrates panel 14 , monitoring region R as discussed above relative to FIG. 1 , in the context of a communications system 10 - 1 which couples the panel 14 to a routing system 20 which communicates with a central station 30 . Those of skill will understand that a variety of communications implementations come within the scope and spirit hereof. Those details are not limitations of the present exemplary embodiments.

Operationally, when the panel 14 is armed, and indicates that a zone is exhibiting a pre-alarm, an alarm or an intrusion, of a delayed reporting type, for example, an exit/entry or a dialer delay, panel 14 can transmit an appropriate message to routing system 20 and/or central station 30 . This message can include information as to the triggering condition along with an associated delay setting for that particular alarm and an incremental margin value, along with an indication that this is a delayed alarm. Time of alarm as well as type of delay could also be transmitted.

This message then traverses the network and is received at the routing system 20 where it is placed in a wait state with the delay duration. An acknowledgement message or symbol can be returned to the panel 14 .

A retry timer can be set to the delay setting without the margin value. If prior to the timeout of the retry timer, the system 20 and the panel 14 are still in communication, and the panel 14 is disarmed, a cancellation message will be sent from the panel indicating that it is an alarm cancel request. At that time, the system 20 can cancel delivery of the delayed alarm.

However, if the panel 14 has been destroyed, or the message represents a real alarm, no further traffic will be received from the panel 14 and the routing system 20 forwards notice of an alarm to the central station 30 . If a normal check in is not received from the panel 14 , indicating it is still functional, a communication failure can be indicated for that installation.

FIG. 3 illustrates a variation 10 - 2 , of the system 10 - 1 of FIG. 2 . As illustrated in FIG. 3 , the panel 14 can communicate with the alarm automation system 30 via a variety of communications protocols and networks including cellular-type communications protocols and systems, or, internet protocols and computer based communications networks. In the presence of a delayed-type alarm condition, the panel 14 sends a message to the 7810PC.

The message can include information as to the cause of the alarm condition, and a delay interval setting for that particular alarm along with a margin interval and an acknowledge code indicating a delayed alarm. The message can be stored at the 7810PC for the duration of the interval. An acknowledge code can be returned to the panel 14 . A retry timer at the 7810PC can be set to the delay interval received from the panel 14 .

In the event of a normal disarm, if prior to the time out of the retry timer, the 7810PC is still communicating with the panel 14 and the panel 14 becomes disarmed, the delayed alarm message can be resent from the panel 14 along with an alarm cancel code. Receipt of this message at the 7810PC will result in the delayed alarm indicator message being deleted at the 7810PC. The system will continue on in an unalarmed state.

If the panel 14 is destroyed, or not disarmed, it is possible that no further communications will be received from the panel 14 . In this instance, the 7810PC will forward the alarm message to the alarm automation system 30 , and central monitoring station. Alternately, if the panel 14 has not been destroyed or damaged, it can send an all-is-well message along with an indicator that a normal test alarm message had previously been forwarded.

From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims.

Further, logic flows depicted in the figures do not require the particular order shown, or sequential order, to achieve desirable results. Other steps may be provided, or steps may be eliminated, from the described flows, and other components may be add to, or removed from the described embodiments.