Systems and methods of dynamically varying a pre-alarm time of a security system

Patent metadata

Field	Value
Publication number	US-9852605-B2
Application number	US-201615370287-A
Country	US
Kind code	B2
Filing date	Dec 6, 2016
Priority date	Jul 16, 2015
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

Systems and methods of adjusting a pre-alarm time are provided, including detecting, by a sensor, an entry into a building by a person and generating detection data according to the detected entry. A processor communicatively coupled to the sensor adjusts a pre-alarm time according to the detection data. An alarm is output, by an alarm device communicatively coupled to at least the processor, according to the detection data and the adjusted pre-alarm time.

First claim

The invention claimed is:

1. A security system comprising:
a sensor to detect an entry into a building by a person, and generate detection data according to the detected entry;
a processor communicatively coupled to the sensor to receive the detection data, the processor to estimate a threat level based on the detection data and a security system operating state, and to adjust a pre-alarm time according to the estimated threat level; and
an alarm device, communicatively coupled to at least the processor, that outputs an alarm according to the detection data and the threat level.

2. The system of claim 1 , wherein the processor is configured to determine, at least according to the detection data, a location of the entry of the person.

3. The system of claim 2 , wherein the processor adjusts the pre-alarm time for the alarm device at least according to the determined location of the entry of the person, wherein the alarm device outputs the alarm based on the adjusted pre-alarm time.

4. The system of claim 2 , wherein the threat estimator of the processor determines a threat level at least according to the determined location of the entry.

5. The system of claim 1 , wherein the threat estimator of the processor determines the threat level at least based on a time of day.

6. The system of claim 5 , wherein the processor adjusts the pre-alarm time of the alarm device according to the determined threat level.

7. The system of claim 6 , wherein the processor determines the pre-alarm time according to a selection by a user.

8. The system of claim 1 , wherein the processor adjusts the pre-alarm time of the alarm device according to the detection data.

9. The system of claim 8 , wherein the alarm device outputs the alarm according to the detection data and the adjusted pre-alarm time.

10. The system of claim 1 , wherein the processor is configured to determine, according to the detection data, whether the person is an authorized user.

11. The system of claim 10 , wherein the processor is configured to adjust the pre-alarm time of the alarm device so as to reduce the pre-alarm time when the person is not an authorized user.

12. The system of claim 10 , wherein the processor is configured to adjust the pre-alarm time of the alarm device so as to increase the pre-alarm time when the person is determined to be an authorized user.

13. The system of claim 12 , wherein the processor is configured to adjust the pre-alarm time based on the authorized user.

14. The system of claim 1 , wherein the processor includes an alarm manager configured to determine the amount of time spent in the pre-alarm state and to determine whether to control the alarm device to output an alarm.

15. The system of claim 1 , further comprising a database of events, wherein the processor is configured to determine whether the entry detected by the sensor is typical based on the database of events.

16. The system of claim 15 , wherein the processor is configured to adjust the pre-alarm time of the alarm device according to the determination of whether the detected entry is typical based on the database of events.

17. The system of claim 15 , wherein the processor is configured to determine whether one or more events after the detected entry is typical based on the database of events.

18. The system of claim 1 , wherein the sensor includes a first sensor and a second sensor, and the processor is configured to adjust the pre-alarm time of the alarm device according to the detection data received from at least one of the first sensor and the second sensor.

19. The system of claim 18 , wherein the processor is configured to adjust the pre-alarm time differently for the first sensor and the second sensor.

20. The system of claim 18 , wherein the processor is configured to adjust the pre-alarm time according to a sequence of events received from the first sensor and the second sensor.

21. A method of operating a security system comprising:
detecting, by a sensor, an entry into a building by a person, and generating detection data according to the detected entry;
estimating, by a processor communicatively coupled to the sensor, a threat level using the detection data and a security system operating state, and adjusting a pre-alarm time according to the estimated threat level; and
outputting an alarm, by an alarm device communicatively coupled to at least the processor, according to the detection data and the threat level.

22. The method of claim 21 , further comprising:
determining, by the processor, at least according to the detection data, a location of the entry of the person.

23. The method of claim 22 , further comprising:
adjusting the pre-alarm time for the alarm device at least according to the determined location of the entry of the person,
wherein the alarm device outputs the alarm based on the adjusted pre-alarm time.

24. The method of claim 22 , further comprising:
determining, by the threat estimator of the processor, a threat level at least according to the determined location of the entry.

25. The method of claim 21 , further comprising:
determining, by the threat estimator of the processor, the threat level at least based on a time of day.

26. The method of claim 25 , further comprising:
adjusting, by the processor, the pre-alarm time of the alarm device according to the determined threat level.

27. The method of claim 26 , further comprising:
determining, by the processor, the pre-alarm time according to a selection by a user.

28. The method of claim 21 , further comprising:
adjusting, by the processor, the pre-alarm time of the alarm device according to the detection data.

29. The method of claim 28 , wherein the alarm device outputs the alarm according to the detection data and the adjusted pre-alarm time.

30. The method of claim 21 , further comprising:
determining, by the processor, whether the person is an authorized user according to the detection data.

31. The method of claim 30 , further comprising:
adjusting, by the processor, the pre-alarm time of the alarm device so as to reduce the pre-alarm time when the person is not an authorized user.

32. The method of claim 30 , further comprising:
adjusting, by the processor, the pre-alarm time of the alarm device so as to increase the pre-alarm time when the person is determined to be an authorized user.

33. The method of claim 32 , further comprising:
adjusting, by the processor, the pre-alarm time based on the authorized user.

34. The method of claim 21 , further comprising:
determining, by the processor that includes an alarm manager, the amount of time spent in the pre-alarm state and to determine whether to control the alarm device to output an alarm.

35. The method of claim 21 , further comprising:
determining, by the processor that is coupled to a database of events, whether the entry detected by the sensor is typical based on the database of events.

36. The method of claim 35 , further comprising:
adjusting, by the processor, the pre-alarm time of the alarm device according to the determination of whether the detected entry is typical based on the database of events.

37. The method of claim 35 , further comprisin

Assignees

• Google Inc
• Google Llc

Inventors

• Dey Sourav Raj
• Malhotra Mark Rajan
• Modi Yash

Classifications

• G08B25/14 Primary

  Central alarm receiver or annunciator arrangements · CPC title

• G08B29/20

  Calibration, including self-calibrating arrangements · CPC title

• G08B25/008

  Alarm setting and unsetting, i.e. arming or disarming of the security system · CPC title

• G08B25/002 Primary

  Generating a prealarm to the central station · CPC title