False Alarm Avoidance In Security Systems Filtering Low In Network

• US 20150254972A1
• Filed: 03/10/2014
• Published: 09/10/2015
• Est. Priority Date: 03/10/2014
• Status: Active Grant

• Current Assignee: Tyco Fire & Security GmbH (Johnson Controls International plc)
• Original Assignee: Tyco Fire & Security GmbH (Johnson Controls International plc)
• Inventors: Patterson, Hap, Hauhn, Joseph E., Rasband, Paul B., Hall, Stewart E., Mucci, Anthorny
• Granted Patent: US 9,384,656 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• CPC Class Codes: G08B 13/19663 Surveillance related processing done local to the camera
• CPC Class Codes: G08B 13/19671 Addition of non-video data, i.e. metadata, to video stream
• CPC Class Codes: G08B 25/001 Alarm cancelling procedures or alarm forwarding decisions, e.g. based on absence of alarm confirmation
• CPC Class Codes: G08B 25/08 using communication transmission lines G08B13/19658, G08B21/0286, G08B25/016 take precedence
• CPC Class Codes: G08B 25/14 Central alarm receiver or annunciator arrangements
• CPC Class Codes: G08B 29/185 Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
• CPC Class Codes: G08B 29/188 Data fusion; cooperative systems, e.g. voting among different detectors

Abstract

Embodiments of intrusion detection systems are described and which include an intrusion detection panel that receives binary and metadata sensor data from which the presence of an alarm condition is detected. In addition sensor devices analyze sensor data received from other sensor devices that are in a peer to peer relationship with the corresponding sensor device to validate whether the indicated alarm condition is a valid alarm or a false alarm.

Claims

1. An intrusion detection system comprises:

plural sensor devices each device comprising;

at least one event sensor element;

a processor device;

a memory in communication with the processor device; and

a storage device that stores a program of computing instructions configured to cause the processor to;

receive sensor data from the event sensor element of a corresponding one of the sensor devices;

analyze sensor data from the event sensor elements for the presence of an alarm condition;

analyze sensor data received from at least one other of the plural sensor devices that is in a peer to peer relationship with the corresponding sensor device to validate whether the indicated alarm condition is a valid alarm or a false alarm; and

raise an alarm when the sensor device and the at least one other sensor device confirms the presence of the alarm condition.

2. The intrusion detection system of claim 1, wherein sensor data from at least one of the sensor devices sends a binary signal to the corresponding sensor device.

3. The intrusion detection system of claim 1, wherein sensor data from at least one of the sensor devices sends a signal that includes metadata to the corresponding sensor device with the metadata comprising information resulting from processing of inputs by the at least one of the sensor devices with the information comprising data regarding a state of an environment within the range of the at least one of the sensor devices.

4. The intrusion detection system of claim 3, wherein the instructions to analyze comprise instructions to:

determine whether there was an indication of a forced entry;

determine whether there was an indication of a perimeter presence using the metadata; and

determine whether there was an indication of a valid interior violation.

5. The system of claim 1, wherein the instructions further comprise instructions to:

maintain counts of and/or record details regarding false alarms asserted by the one or more sensors;

periodically send information regarding these false alarms to a monitoring station.

6. A sensor device comprises:

at least one event sensor element;

a processor device;

a memory in communication with the processor device; and

a storage device that stores a program of computing instructions configured to cause the processor to;

receive sensor data from the at least event sensor element of the sensor device;

analyze the received sensor data for the presence of an alarm condition;

receive sensor data from at least one other sensor device that is in a peer to peer relationship with the sensor device to validate whether the indicated alarm condition is a valid alarm or a false alarm; and

send results of analyzed sensor data to the at least one other sensor device in the peer to peer relationship with the sensor device; and

a network interface configured to communicate sensor data and alarm conditions to other sensor devices that are in a peer to peer relationship with the sensor device.

7. The sensor device of claim 6 further comprises a first plurality of sensors elements.

8. The sensor device of claim 7, wherein the sensor data from at least one of the event sensor elements is sensor metadata, with the metadata comprising information resulting from processing of inputs by the sensor device with the information comprising data regarding a state of an environment within the range of the sensor device.

9. The sensor device of claim 6 wherein the instructions to analyze further comprises instructions to analyze sensor data according to order of arrival of the sensor data.

10. The sensor device of claim 7 wherein the sensor device comprises plural sensor elements, and the instructions to analyze further comprise instructions to analyze the data according to order of arrival of sensor data from the plural sensor elements.

11. The sensor device of claim 7 wherein the sensor elements are contact switches and glass break sensors enhanced motion detectors, video cameras, microphones and/or other sound capturing devices.

12. The sensor device of claim 6 further comprising:

a network interface configured to send a filter event declaration to a detection panel.

13. The sensor device of claim 7, wherein the processor is further configured to:

determine whether there was an indication of a forced entry;

determine whether there was an indication of a perimeter presence using the metadata; and

determine whether there was an indication of a valid interior violation.

14. The sensor device of claim 7, wherein the instructions to analyze, analyze binary outputs from conventional sensors elements and metadata outputs from other sensor elements to determine whether to assert an alarm condition.

15. The intrusion detection device of claim 13, further configured to:

process the metadata to assign a first one of a plural different levels of awareness, which is communicated to a monitoring station.