Alarm system and car alarm method based on the alarm system

An alarm system and vehicle technology, applied to anti-theft vehicle accessories, alarms, vehicle parts, etc., can solve problems such as no response to paging information, no registration information sent, etc.
CN100581205CInactive Publication Date: 2010-01-13BEIJING CARSMART TECH +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING CARSMART TECH
Publication Date
2010-01-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The utility model relates to an alarm system, which comprises a mobile terminal, a mobile switching center connected with the mobile terminal through communication networks, a home location register connected with the mobile switching center, a visited location register connected with the mobile switching center and a central module connected with the mobile switching center. The utility model also relates to a vehicle alarm method based on the alarm system, in which the mobile terminal is solidly fixed with the vehicles, comprising the follow steps: first, the central module searches for mobile switching centers through the home location register with mobile terminals; second, the device should implement according to the instruction 5 if the information of the checked visited location register is implicit separation state, otherwise the instruction 3 should be implemented; third, the central module sends paging message to the central modules; fourth, if during the time of threshold value, the mobile switching center receives the response message of the paging message of the mobile terminal, then the instruction 1 should be implemented, otherwise the instruction 5 should be implemented; fifth, the central module alarms or triggers other operations.
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Description

technical field

[0001] The present invention relates to an alarm system and a vehicle alarm method based on the alarm system, in particular to an alarm system for alarming when a mobile terminal is artificially disturbed and does not respond to paging information, or does not send registration information, and uses the alarm system vehicle alarm method. Background technique

[0002] When the mobile terminal MS is powered on, it first needs to search on the air interface to find the correct frequency, and rely on the correct frequency found to correct and synchronize the frequency, and lock the frequency. This frequency carries broadcast messages and possibly paging messages. That is, the LAI received by the MS is inconsistent with the original LAI stored in its SIM card, and immediately sends a "location update request" to the MSC. The MSC needs to judge whether the original LAI is the location of its own service area. If the judgment is positive, the MSC only needs to Rew...

Claims

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