Anti-theft method and apparatus

Patent metadata

Field	Value
Publication number	US-10964200-B2
Application number	US-202016859378-A
Country	US
Kind code	B2
Filing date	Apr 27, 2020
Priority date	Dec 19, 2014
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

An alarm method and system reduces costs, and the alarm method includes obtaining a detection signal from a terminal device, where the detection signal is a signal sent by the terminal device when the terminal device detects whether there is an available network, and performing an alarm operation when the detection signal meets a first condition.

First claim

The invention claimed is:

1. A network device, comprising:
at least one processor; and
a memory coupled to the at least one processor and configured to store instructions that, when executed by the at least one processor, cause the network device to:
determine whether a first detection signal from a first device is detected, wherein the first device is associated with the network device;
automatically start an alarm function when the network device does not detect the first detection signal within a time segment;
obtain a second detection signal from a second device; and
send an alarm message to the first device based on the second detection signal.

2. The network device of claim 1 , wherein the instructions further cause the network device to send an alarm indication message to an image collection apparatus, wherein the alarm indication message instructs the image collection apparatus to collect an image.

3. The network device of claim 1 , wherein the instructions further cause the network device to send an alarm indication message to an alarm apparatus, wherein the alarm indication message instructs the alarm apparatus to output an alarm.

4. The network device of claim 1 , wherein the instructions further cause the network device to send the alarm message to the first device when the second detection signal meets a first condition, and wherein the first condition comprises a signal strength value of the second detection signal being greater than or equal to a first threshold.

5. The network device of claim 4 , wherein the first condition further comprises an identifier of the second device not being included in a first identifier table.

6. The network device of claim 1 , wherein the network device is a router.

7. The network device of claim 3 , wherein the alarm apparatus is an alarm bell.

8. An alarm method implemented by a network device, comprising:
determining that a first device is not detectable, wherein the first device is associated with the network device;
automatically starting an alarm function in response to the first device not being detectable;
obtaining a detection signal from a second device; and
sending an alarm message to the first device in response to the detection signal meeting a first condition.

9. The alarm method of claim 8 , further comprising sending an alarm indication message to an alarm apparatus, wherein the alarm indication message instructs the alarm apparatus to output an alarm.

10. The alarm method of claim 8 , further comprising sending an alarm indication message to an image collection system, wherein the alarm indication message instructs the image collection system to collect an image.

11. The alarm method of claim 8 , wherein the first condition comprises a signal strength value of the detection signal being greater than or equal to a first threshold and an identifier of the second device not being included in a first identifier table.

12. The alarm method of claim 8 , further comprising determining that the first device is not detectable when a second detection signal from the first device is not detected within a time segment.

13. A computer program product comprising computer-executable instructions for storage on a non-transitory computer-readable medium that, when executed, cause a system to:
determine that a first device is not detectable, wherein the first device is associated with the system;
automatically start an alarm function in response to the first device not being detectable;
obtain a detection signal from a second device; and
send an alarm message to the first device based on the second detection signal.

14. The computer program product of claim 13 , wherein the computer-executable instructions further cause the system to send an alarm indication message to an alarm apparatus, and wherein the alarm indication message instructs the alarm apparatus to output an alarm.

15. The computer program product of claim 13 , wherein the computer-executable instructions further cause the system to send an alarm indication message to an image collection system, and wherein the alarm indication message instructs the image collection system to collect an image.

16. The computer program product of claim 13 , wherein the detection signal comprises a WI-FI signal.

17. The computer program product of claim 13 , wherein the computer-executable instructions further cause the system to send the alarm message to the first device when the second detection signal meets a first condition, wherein the first condition comprises a signal strength value of the detection signal being greater than or equal to a first threshold.

18. The computer program product of claim 17 , wherein the first condition further comprises an identifier of the second device not being included in a first identifier table.

19. The computer program product of claim 13 , wherein the system comprises a router.

20. The computer program product of claim 13 , wherein the computer-executable instructions further cause the system to determine that that the first device is not detectable when the second detection signal from the first device is not detected within a time segment.

Assignees

• Huawei Tech Co Ltd

Inventors

• Xue Kai
• Yang Nan

Classifications

• G08B25/008 Primary

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

• G08B21/22

  responsive to presence or absence of persons · CPC title

• G08B13/19697

  Arrangements wherein non-video detectors generate an alarm themselves · CPC title

• G08B13/00

  Burglar, theft or intruder alarms · CPC title

• G08B25/10 Primary

  using wireless transmission systems {(G08B25/009 takes precedence)} · CPC title