CN103426268B - A kind of WIFI module that utilizes carries out the antitheft method and system of mobile device - Google Patents
A kind of WIFI module that utilizes carries out the antitheft method and system of mobile device Download PDFInfo
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- CN103426268B CN103426268B CN201310328271.5A CN201310328271A CN103426268B CN 103426268 B CN103426268 B CN 103426268B CN 201310328271 A CN201310328271 A CN 201310328271A CN 103426268 B CN103426268 B CN 103426268B
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Abstract
The invention provides a kind of WIFI module that utilizes and carry out the antitheft method and system of mobile device, wherein method comprises the steps: the signal initial intensity value obtaining the WIFI hot spot connected; Step 20, obtain the signal strength values of above-mentioned WIFI hot spot; If the ratio of the signal strength values got and signal initial intensity value not lower than the first attenuation ratio, then returns step 20, otherwise the ratio of the signal strength values got and signal initial intensity value is lower than the first attenuation ratio, be then recorded as secondary signal intensity level; Step 40, obtain the signal strength values of above-mentioned WIFI hot spot; If the ratio of the signal strength values got and secondary signal intensity level is not lower than the second attenuation ratio, then return step 40, otherwise the ratio of the signal strength values got and secondary signal intensity level is lower than the second attenuation ratio, then the loudspeaker on mobile device are driven to sound the alarm.Without the need to buying extra burglary-resisting installation when the present invention works, and obtain good anti-theft effect.
Description
Technical field
The present invention relates to a kind of WIFI module that utilizes and carry out the antitheft method and system of mobile device.
Background technology
WIFI is made up of " wireless (radio) " and " fidelity (fidelity) ", is the technology that the terminals such as PC, handheld device (as PDA, mobile phone), wireless routing can wirelessly be connected to each other by one.The smart machine of now nearly all mobile platform is with WIFI module function, and user can connect WIFI hot spot (wireless signal) by WIFI module and realize online, the Internet resources needed for acquisition.The equipment of mobile platform is as all smaller and more exquisite, light in mobile phone, flat board in addition.While improve portable degree, the equipment that too increases is by the possibility of stealing.Had a kind of utilization to carry out antitheft measure with the alarm of bluetooth module at present on the market, its principle is the short distance characteristic of the transmission utilizing bluetooth; After the bluetooth module of the bluetooth module of this alarm and the equipment of mobile platform matches, if once mobile flat board leaves this alarm distance exceed certain limit, cause the disconnecting between the bluetooth module of alarm and the bluetooth module of mobile device, system will give the alarm reminding user.Although the method effectively can play the antitheft effect of mobile device, need extra this type of alarm with bluetooth module of purchase.So under the prerequisite of not adding users financial burden, one can be designed relatively simple, the method for certain anti-theft function can be played again?
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of WIFI module that utilizes to carry out the antitheft method and system of mobile device, realizes the anti-theft feature of mobile device self.
The present invention is achieved in that
Utilize WIFI module to carry out the antitheft method of mobile device, comprise the steps:
Step 10, after WIFI module connects WIFI hot spot, obtain the signal initial intensity value of WIFI hot spot connected;
Step 20, obtain the signal strength values of above-mentioned WIFI hot spot;
If the ratio of the signal strength values that step 30 gets and signal initial intensity value is not lower than the first attenuation ratio, then return step 20, otherwise the ratio of the signal strength values got and signal initial intensity value lower than the first attenuation ratio, is then recorded as secondary signal intensity level;
Step 40, obtain the signal strength values of above-mentioned WIFI hot spot;
If the ratio of the signal strength values that step 50 gets and secondary signal intensity level is not lower than the second attenuation ratio, then return step 40, otherwise the ratio of the signal strength values got and secondary signal intensity level is lower than the second attenuation ratio, then the loudspeaker on mobile device are driven to send default alarm song.Alarm song can be undertaken self-defined by user.
What this method was taked is utilize the WIFI module of mobile device to be connected on wireless router (WIFI hot spot), the changing value of the signal intensity of continuous detecting it and this wireless router, when mobile device is gradually away from this wireless router time, systems axiol-ogy presents obvious downtrending to intensity, judge that now mobile device has by the possibility of stealing, timely prompting is reported to the police, and realizes anti-theft feature.Described attenuation ratio is a ratio, and this ratio represents the signal strength values that the detects ratio relative to the intensity level of the signal detected below above.Wherein the first attenuation ratio and the second attenuation ratio can be arranged to the arbitrary value from 0%-100% as required, arrange too little, that only has just reminds when WIFI signal intensity level drops to quite low ratio relative to signal strength values last time, then equipment has larger distance from WIFI hot spot, if arrange too large, then a little distance of equipment moving just may send alarm sound.Preferably, the first attenuation ratio is 60%-80%, and the second attenuation ratio is 60%-80%.The signal attenuation of this scope than in the application of reality, mobile device probably than position during signal initial intensity value away from WIFI hot spot direction 5-20 rice.The distance of this movement is more appropriate.
Preferably, the first described attenuation ratio is 70%.
Preferably, the second described attenuation ratio is 70%.Position during such warning and the position of signal initial intensity value are about 10 meters in the direction away from WIFI hot spot, more realistic demand.
Preferably, before step 10, also comprise step 1: detect anti-theft feature and whether be opened, if anti-theft feature is not opened, then do not carry out the step of step 10 to step 50, otherwise anti-theft feature is opened, and enters step 10.By step 1, anti-theft feature can be closed when not needing to carry out antitheft, avoiding equipment to report to the police.
In order to realize above-mentioned method, the present invention also provides a kind of WIFI module that utilizes to carry out the antitheft system of mobile device, comprises as lower module:
WIFI module: for connecting WIFI hot spot;
SDIO controller: for controlling described WIFI module; SDIO controller is serial protocol controller, is usually used in the control of WIFI module;
WIFI signal detection module: for detecting the signal strength values of WIFI hot spot;
Loudspeaker: for sounding the alarm;
Buzzing system: for driving loudspeaker;
Central processing unit: for after WIFI module connects WIFI hot spot, obtains the signal initial intensity value of the WIFI hot spot connected; Obtain the signal strength values of above-mentioned WIFI hot spot; If the ratio of the signal strength values got and signal initial intensity value is not lower than the first attenuation ratio, then returns back and again obtain signal intensity; Otherwise the ratio of the signal strength values got and signal initial intensity value lower than the first attenuation ratio, is then recorded as secondary signal intensity level; Obtain the signal strength values of above-mentioned WIFI hot spot; If the ratio of the signal strength values got and secondary signal intensity level not lower than the second attenuation ratio, then returns in back and again obtains signal intensity; Otherwise the ratio of the signal strength values got and secondary signal intensity level is lower than the second attenuation ratio, then send default alarm song by buzzing system drive loudspeaker.
Preferably, the first described attenuation ratio is 60%-80%.
Preferably, the second described attenuation ratio is 60%-80%.
Preferably, the first described attenuation ratio is 70%, and the second described attenuation ratio is 70%.
Tool of the present invention has the following advantages: the WIFI module of self utilizing mobile device, achieves the anti-theft feature of mobile device self, when not increasing extra anti-theft module, effectively serves the anti-theft feature of mobile device.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the system construction drawing of the preferred embodiment of the present invention.
Fig. 2 is the method flowchart of the preferred embodiment of the present invention.
Embodiment
As shown in Figure 1, a kind of WIFI module that utilizes carries out the antitheft system of mobile device, comprises as lower module: central processing unit 1, SDIO controller 2, WIFI signal detection module 3, buzzing system 4, WIFI module 5, loudspeaker 6.WIFI module 5 is for connecting WIFI hot spot, SDIO controller 2 is for controlling WIFI module 5, WIFI signal detection module 3 is for detecting the signal strength values of WIFI hot spot, loudspeaker 6 are for sounding the alarm, buzzing system 4 is for driving loudspeaker 6, central processing unit 1 for judging the size of the signal intensity comparing the WIFI hot spot that WIFI module 5 connects, and drives loudspeaker 6 to sound the alarm by buzzing system 4.
When application the present invention carries out antitheft, should have the WIFI hot spot group 7 that can be used for connecting around mobile device, WIFI hot spot group 7 includes multiple hotspot, has wireless AP1 to wireless aps N (as shown in Figure 1).As shown in Figure 2, for the present invention carries out the antitheft method of mobile device, first preset alarm song, open anti-theft feature in step S101, use WIFI module 5 to connect a WIFI hot spot for wireless aps 3.Then in step s 102, control WIFI signal detection module 3 by central processing unit 1 by SDIO controller 2 and carry out detecting and the signal initial intensity value recording wireless aps 3, be designated as V1.In step s 103, central processing unit 1 controls the signal strength values that WIFI signal detection module 3 detects AP3, and is designated as V2.In step S104, the ratio of V2 and V1 and 70% compare by central processing unit 1, if V2 is except being more than or equal to 70% in V1, then return step S103, otherwise V2 is except being less than 70% in V1, then enter the signal strength values that step S105 detects AP3, and be designated as V3.In step s 106, the ratio of V3 and V2 and 70% compare by central processing unit 1, if V3 is except being more than or equal to 70% in V2, then return step S105, otherwise V3 is except being less than 70% in V2, then enter step S107, master controller 1 drives loudspeaker 6 to send default alarm song by buzzing system 4.
In sum, namely realize mobile device and utilize the WIFI module of self to carry out antitheft, and extra burglary-resisting installation need not be added, reach good effect.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (10)
1. utilize WIFI module to carry out the antitheft method of mobile device, it is characterized in that: comprise the steps:
Step 10, after WIFI module connects WIFI hot spot, obtain the signal initial intensity value of WIFI hot spot connected;
Step 20, obtain the signal strength values of above-mentioned WIFI hot spot;
If the ratio of the signal strength values that step 30 gets and signal initial intensity value is not lower than the first attenuation ratio, then return step 20, otherwise the ratio of the signal strength values got and signal initial intensity value lower than the first attenuation ratio, is then recorded as secondary signal intensity level;
Step 40, obtain the signal strength values of above-mentioned WIFI hot spot;
If the ratio of the signal strength values that step 50 gets and secondary signal intensity level is not lower than the second attenuation ratio, then return step 40, otherwise the ratio of the signal strength values got and secondary signal intensity level is lower than the second attenuation ratio, then the loudspeaker on mobile device are driven to send default alarm song.
2. a kind of WIFI module that utilizes according to claim 1 carries out the antitheft method of mobile device, it is characterized in that: the first described attenuation ratio is 60%-80%.
3. a kind of WIFI module that utilizes according to claim 2 carries out the antitheft method of mobile device, it is characterized in that: the first described attenuation ratio is 70%.
4. a kind of WIFI module that utilizes according to claim 1 carries out the antitheft method of mobile device, it is characterized in that: the second described attenuation ratio is 60%-80%.
5. a kind of WIFI module that utilizes according to claim 4 carries out the antitheft method of mobile device, it is characterized in that: the second described attenuation ratio is 70%.
6. carry out the antitheft method of mobile device according to the arbitrary described a kind of WIFI module that utilizes of claim 1 to 5, it is characterized in that: before step 10, also comprise step 1: detect anti-theft feature and whether be opened, if anti-theft feature is not opened, then do not carry out the step of step 10 to step 50, otherwise anti-theft feature is opened, enter step 10.
7. utilize WIFI module to carry out the antitheft system of mobile device, it is characterized in that: comprise as lower module:
WIFI module: for connecting WIFI hot spot;
SDIO controller: for controlling described WIFI module;
WIFI signal detection module: for detecting the signal strength values of WIFI hot spot;
Loudspeaker: for sounding the alarm;
Buzzing system: for driving loudspeaker;
Central processing unit: for after WIFI module connects WIFI hot spot, obtains the signal initial intensity value of the WIFI hot spot connected; Obtain the signal strength values of above-mentioned WIFI hot spot; If the ratio of the signal strength values got and signal initial intensity value is not lower than the first attenuation ratio, then returns back and again obtain signal intensity; Otherwise the ratio of the signal strength values got and signal initial intensity value lower than the first attenuation ratio, is then recorded as secondary signal intensity level; Obtain the signal strength values of above-mentioned WIFI hot spot; If the ratio of the signal strength values got and secondary signal intensity level not lower than the second attenuation ratio, then returns in back and again obtains signal intensity; Otherwise the ratio of the signal strength values got and secondary signal intensity level is lower than the second attenuation ratio, then send default alarm song by buzzing system drive loudspeaker.
8. a kind of WIFI module that utilizes according to claim 7 carries out the antitheft system of mobile device, it is characterized in that: the first described attenuation ratio is 60%-80%.
9. a kind of WIFI module that utilizes according to claim 7 carries out the antitheft system of mobile device, it is characterized in that: the second described attenuation ratio is 60%-80%.
10. a kind of WIFI module that utilizes according to claim 7 carries out the antitheft system of mobile device, and it is characterized in that: the first described attenuation ratio is 70%, the second described attenuation ratio is 70%.
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| WO2016049820A1 (en) | 2014-09-29 | 2016-04-07 | 华为技术有限公司 | Anti-lost prompting method and anti-theft device |
| CN104504845B (en) * | 2014-12-20 | 2017-04-12 | 成都史塔克智能科技有限公司 | Loss prevention method, loss prevention device and loss prevention system |
| CN104658186B (en) * | 2015-02-05 | 2017-07-04 | 广东小天才科技有限公司 | Intelligent alarm method and system |
| CN107564213A (en) * | 2016-07-01 | 2018-01-09 | 松下家电研究开发（杭州）有限公司 | A kind of household electrical appliance theft preventing method |
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| DE102007059483A1 (en) * | 2007-11-22 | 2009-05-28 | Sergej Ehwald | Mobile or stationary device, particularly Bluetooth mobile phone or notebooks for activating Bluetooth miniature receiver for finding misplaced articles e.g. key, has Bluetooth miniature receiver for emitting acoustic or optical signal |
| CN201303367Y (en) * | 2008-12-05 | 2009-09-02 | 深圳市高新奇科技股份有限公司 | Bluetooth anti-loss mobile phone |
| CN202126733U (en) * | 2011-06-09 | 2012-01-25 | 东莞盛世科技电子实业有限公司 | Antitheft alarm device |
| CN102663868A (en) * | 2012-04-18 | 2012-09-12 | 李曙胜 | Security protection realizing method and system of mobile intelligent terminal |
| CN103178912B (en) * | 2013-03-15 | 2015-11-25 | 小米科技有限责任公司 | A kind of method that wireless signal strength is reminded and terminal |
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Address after: 350000 Fuzhou Gulou District, Fujian, software Avenue, building 89, No. 18 Applicant after: FUZHOU ROCKCHIP ELECTRONICS CO., LTD. Address before: 350000 Fuzhou Gulou District, Fujian, software Avenue, building 89, No. 18 Applicant before: Fuzhou Rockchip Semiconductor Co., Ltd. |
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Address after: 350000 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Patentee after: Ruixin Microelectronics Co., Ltd Address before: 350000 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Patentee before: Fuzhou Rockchips Electronics Co.,Ltd. |