CN103297156A - Mobile terminal anti-theft method based on Bluetooth technology - Google Patents
Mobile terminal anti-theft method based on Bluetooth technology Download PDFInfo
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- CN103297156A CN103297156A CN201310155842XA CN201310155842A CN103297156A CN 103297156 A CN103297156 A CN 103297156A CN 201310155842X A CN201310155842X A CN 201310155842XA CN 201310155842 A CN201310155842 A CN 201310155842A CN 103297156 A CN103297156 A CN 103297156A
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- mobile terminal
- warning device
- portable terminal
- bluetooth
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Abstract
The invention relates to a mobile terminal anti-theft method based on Bluetooth technology. The mobile terminal anti-theft method based on the Bluetooth technology comprises the following steps that physical link connection is built between a mobile terminal and an alarming device, after the physical link connection is built, a logic transmission address is distributed to the alarming device by the mobile terminal, and the logic transmission address is used by the mobile terminal for identifying the alarming device connected with the mobile terminal; when the logic link connection is built between the mobile terminal and the alarming device and the logic transmission address is distributed to the alarming device by the mobile terminal, two link monitoring timers are started in the mobile terminal and the alarming device respectively. The mobile terminal anti-theft method based on the Bluetooth technology can monitor whether the distance between the mobile terminal and the alarming device is within a communication range in real time, if the mobile terminal is far away from the alarming device, namely when the mobile terminal is lost, an alarm is sent out immediately, and the problem that the loss detection delay of the mobile terminal is too long is avoided.
Description
Technical field
The invention belongs to wireless communication technology field, relate to a kind of anti-theft method for mobile terminal, particularly a kind of anti-theft method for mobile terminal based on bluetooth (Bluetooth) technology.
Background technology
Bluetooth is the radiotechnics of a kind of support equipment short haul connection (generally being within the 10m).Can comprise that carrying out wireless messages between numerous equipment such as mobile phone, PDA, wireless headset, notebook computer, relevant peripheral hardware exchanges.The standard of bluetooth is IEEE802.15, is operated in the 2.4GHz frequency band, and bandwidth is 1Mb/s.Bluetooth technology is used high-speed frequency-hopping (FH, Frequency Hopping) and time division multiple access (TDMA, advanced technologies such as Time DivesionMuli-access), in closely the most at an easy rate with several digitizers (various mobile devices, fixed communication apparatus, computer and terminal equipment thereof, various digital data system, as digital camera, digital camera etc., even various household electrical appliance, automation equipment) be netted link.Bluetooth technology will be the unified bridge of various peripheral interfaces in the network, and it has eliminated the line between the equipment, replaces with wireless connections.
Bluetooth is a kind of wireless communication technique of short distance, and electronic installation can see through bluetooth each other and couple together, and has saved traditional electric wire.See through the wireless receiver on the chip, the electronic product of being furnished with Bluetooth technology can communicate with each other in ten meters distance, and transmission speed can reach Mbytes each second 1.The transmission technology of infrared interface needed electronic installation distance in sight in the past, and Bluetooth technology has been arranged now, and such trouble also can have been exempted.
Because microminiaturization and the multifunction of current portable terminal, portable terminal is often carried in daily leisure and tourist activity, because its volume is generally all very small and exquisite, in case user's vigilance is not high, is easy to surpass into loss or stolen.And generally all have a large number of users personal information and data in the portable terminal, in case stolen by other people, will bring immeasurable loss to the user.
The judgement that existing portable terminal is lost exists time delay bigger, the loaded down with trivial details shortcoming of working.Losing of portable terminal usually is could find after losing the back long period, and is difficult to retrieve a loss.In addition, when the distance of mobile terminal user was far away, the user might cause damage because can not in time answer important phone.
Summary of the invention
In order to solve the above-mentioned problems in the prior art and defective, the invention provides a kind of anti-theft method for mobile terminal based on Bluetooth technology, in case portable terminal during away from user's certain distance, then can be reported to the police immediately, prevent that portable terminal is stolen.
The present invention adopts and realizes the antitheft of portable terminal based on the Radio Link monitoring technique of Bluetooth technology, at portable terminal and inner each the integrated bluetooth module of warning device.
Step 1. is set up physical link and is connected between portable terminal and warning device, after setting up physical link and connecting, distribute a logical transport address, the warning device that this logical transport Address Recognition of used for mobile terminal is connected with it by portable terminal to warning device.
Be provided with main bluetooth equipment in the described portable terminal, be provided with the bluetooth slave in the warning device;
Main bluetooth equipment distributes the logical transport address (LT_ADDR) of 3 bits to the bluetooth slave that activates.Complete zero logical transport address is used for broadcast, and in the Piconet net, bluetooth master does not have the logical transport address, for the bluetooth slave, to auxiliary logic transport address of synchrodata logical links distribution of each expansion; The address that the bluetooth slave receives only in the packets headers is the grouping of logical transport address, auxiliary logic transport address and broadcast address; When the bluetooth slave is in state of activation, its logical transport address is effective, when the bluetooth slave is in notconnect state or is in resting state, the bluetooth slave will be lost its all logical transport addresses and auxiliary logic transport address, when the bluetooth slave was activated, bluetooth master distributed a logical transport address for it.
After setting up logical links between portable terminal and the warning device and connecting, portable terminal can be periodically (every 1～30min) send signal frame to warning device, and in frame head, have the corresponding logical links address of warning device.
Step 2. is when having set up between portable terminal and the warning device that logical links connects and portable terminal distributed a logical transport address to warning device after, having started a link monitoring timer respectively in portable terminal and warning device.
Described its initial value of link monitoring timer is set to a constant
, when warning device is received frame that portable terminal sends, at first judge in this frame with the logical transport address whether consistent with the logical transport address of oneself, if consistent, then timer is resetted; If inconsistent, then do not do any operation.When timer count down to zero, alarm was carried out actuation of an alarm.
Physical link between described main bluetooth equipment and the subordinate bluetooth equipment connects owing to different reasons can be interrupted, comprise main bluetooth equipment, subordinate bluetooth equipment move exceed communication range, run into serious disturbance, the transmitted power mistake.Because the interruption meeting that physical link connects takes place under the situation without any alarm in advance, therefore in main bluetooth equipment and subordinate bluetooth equipment, all to monitor link.In patent of the present invention, we adopt and adopt a link monitoring timer to come Bluetooth link is monitored respectively at bluetooth master with from equipment, and this link monitoring method is based on the link monitoring of address.
Beneficial effect of the present invention is as follows:
Adopt method of the present invention whether can monitor in real time between portable terminal and the warning device in communication range, far away as the distance of mobile terminal warning device, can send warning immediately when namely losing, avoided the bigger problem of portable terminal loss detection time delay.
Description of drawings
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of anti-theft method for mobile terminal based on Bluetooth technology comprises the steps:
Step 1: set up physical link between portable terminal and the warning device and connect;
Step 2: portable terminal is given warning device assignment logic transport address;
Step 3: the link monitoring timer in initialization portable terminal and the warning device initial value of link monitoring timer is arranged to a predefined constant, and startup link monitoring timer picks up counting;
Step 4: judge whether the link monitoring timer is overtime, as the overtime step 8 of then changeing;
Step 5: receive the signal frame from portable terminal;
Step 6: judge whether the address in the frame head is consistent with the logical transport address of this warning equipment, if inconsistent then change step 4;
Step 7: the link supervision timer and picking up counting of resetting, change step 4;
Step 8: carry out actuation of an alarm;
Step 9: finish.
Claims (1)
1. the anti-theft method for mobile terminal based on Bluetooth technology is characterized in that: at portable terminal and inner each the integrated bluetooth module of warning device, specifically comprise the steps:
Step 1. is set up physical link and is connected between portable terminal and warning device, after setting up physical link and connecting, distribute a logical transport address, the warning device that this logical transport Address Recognition of used for mobile terminal is connected with it by portable terminal to warning device;
Be provided with main bluetooth equipment in the described portable terminal, be provided with the bluetooth slave in the warning device;
For the bluetooth slave, to auxiliary logic transport address of synchrodata logical links distribution of each expansion; The address that the bluetooth slave receives only in the packets headers is the grouping of logical transport address, auxiliary logic transport address and broadcast address; When the bluetooth slave is in state of activation, its logical transport address is effective, when the bluetooth slave is in notconnect state or is in resting state, the bluetooth slave will be lost its all logical transport addresses and auxiliary logic transport address, when the bluetooth slave was activated, bluetooth master distributed a logical transport address for it; After setting up the logical links connection between portable terminal and the warning device, portable terminal can periodically send signal frame to warning device, and has the corresponding logical links address of warning device in frame head;
Step 2. is when having set up between portable terminal and the warning device that logical links connects and portable terminal distributed a logical transport address to warning device after, having started a link monitoring timer respectively in portable terminal and warning device;
Described its initial value of link monitoring timer is set to a constant
, when warning device is received frame that portable terminal sends, at first judge in this frame with the logical transport address whether consistent with the logical transport address of oneself, if consistent, then timer is resetted; If inconsistent, then do not do any operation; When timer count down to zero, alarm was carried out actuation of an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310155842XA CN103297156A (en) | 2013-04-27 | 2013-04-27 | Mobile terminal anti-theft method based on Bluetooth technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310155842XA CN103297156A (en) | 2013-04-27 | 2013-04-27 | Mobile terminal anti-theft method based on Bluetooth technology |
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| CN103297156A true CN103297156A (en) | 2013-09-11 |
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| CN201310155842XA Pending CN103297156A (en) | 2013-04-27 | 2013-04-27 | Mobile terminal anti-theft method based on Bluetooth technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615932A (en) * | 2014-12-25 | 2015-05-13 | 上海创功通讯技术有限公司 | Terminal devices and monitoring method thereof |
| WO2015109918A1 (en) * | 2014-01-26 | 2015-07-30 | 上海佩奇网络科技有限公司 | Method for implementing power saving for wearable device |
| CN105550609A (en) * | 2015-12-07 | 2016-05-04 | 小米科技有限责任公司 | Anti-lost processing system, device and equipment of mobile terminal |
| CN110213759A (en) * | 2019-06-11 | 2019-09-06 | 桃芯科技(苏州)有限公司 | Anti-lost detection method, storage medium and electronic equipment based on broadcast |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015109918A1 (en) * | 2014-01-26 | 2015-07-30 | 上海佩奇网络科技有限公司 | Method for implementing power saving for wearable device |
| CN104615932A (en) * | 2014-12-25 | 2015-05-13 | 上海创功通讯技术有限公司 | Terminal devices and monitoring method thereof |
| CN105550609A (en) * | 2015-12-07 | 2016-05-04 | 小米科技有限责任公司 | Anti-lost processing system, device and equipment of mobile terminal |
| CN110213759A (en) * | 2019-06-11 | 2019-09-06 | 桃芯科技(苏州)有限公司 | Anti-lost detection method, storage medium and electronic equipment based on broadcast |
| CN110213759B (en) * | 2019-06-11 | 2021-12-14 | 桃芯科技(苏州)有限公司 | Broadcast-based anti-loss detection method, storage medium and electronic device |
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Application publication date: 20130911 |