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

• US 9,852,605 B2
• Filed: 12/06/2016
• Issued: 12/26/2017
• Est. Priority Date: 07/16/2015
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google LLC (Alphabet Inc.)
• Inventors: Dey, Sourav Raj, Malhotra, Mark Rajan, Modi, Yash
• Primary Examiner(s): PHAM, TOAN NGOC
• Application Number:
  US15/370,287
• Publication Number:
  US 20170084161A1
• Time in Patent Office: 385 Days
• Field of Search: 340528, 340517, 340511, 340541, 340565, 3405456, 3405457, 3405458, 3405459
• CPC Class Codes: G08B 25/002 Generating a prealarm to the central station
• CPC Class Codes: G08B 25/008 Alarm setting and unsetting, i.e. arming or disarming of the security system
• CPC Class Codes: G08B 25/14 Central alarm receiver or annunciator arrangements
• CPC Class Codes: G08B 29/20 Calibration, including self-calibrating arrangements

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.

Claims

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 comprising:

determining, by the processor, whether one or more events after the detected entry is typical based on the database of events.

38. The method of claim 21, further comprising:

adjusting, by the processor, the pre-alarm time of the alarm device according to the detection data received from the sensor, wherein the sensor includes at least one of a first sensor and a second sensor.

39. The method of claim 38, further comprising:

adjusting, by the processor, the pre-alarm time differently for the first sensor and the second sensor.

40. The method of claim 38, further comprising:

adjusting, by the processor, the pre-alarm time according to a sequence of events received from the first sensor and the second sensor.