CN103832401A - Vehicle anti-theft system and induction intensifying device and method - Google Patents
Vehicle anti-theft system and induction intensifying device and method Download PDFInfo
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- CN103832401A CN103832401A CN201210475872.4A CN201210475872A CN103832401A CN 103832401 A CN103832401 A CN 103832401A CN 201210475872 A CN201210475872 A CN 201210475872A CN 103832401 A CN103832401 A CN 103832401A
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Abstract
The invention provides a vehicle anti-theft system and an induction intensifying device and method. The vehicle anti-theft system comprises an anti-theft terminal, an induction key and the induction intensifying device, wherein the anti-theft terminal is used for giving out a low-frequency induction signal to detect the induction key, the induction key is used for giving out a high-frequency authentication signal after receiving the low-frequency induction signal given out by the anti-theft terminal, the induction intensifying device is used for detecting the high-frequency authentication signal given out by the induction key after the low-frequency induction signal given out by the anti-theft terminal is detected, and is used for giving out a low-frequency induction signal when the high-frequency authentication signal is not detected, and induction detection is carried out on the induction key through the low-frequency induction signal given out by the induction intensifying device. According to the scheme, communication effectiveness of the self-induction anti-theft system can be effectively improved, and wide application of the self-induction anti-theft system is promoted.
Description
Technical field
The present invention relates to automobile information service technology field, refer to especially a kind of Vehicle Anti-Theft System, induced enhancement device and method.
Background technology
Existing self induction anti-theft device for vehicle is made up of with the induction key of carrying the theft-proof terminal being placed in car.Start after vehicle when car owner gets on the bus, theft-proof terminal will initiatively remove to respond to car owner's induction key, if surveyed successfully, automatically withdraws a garrison, if do not detect induction key, the operations such as trigger alarm; In the time that car owner's parking is left, theft-proof terminal will enter into the state of setting up defences automatically.
Wherein, the induction detection of induction key is a gordian technique in self induction Car Burglar Alarm.At present such Car Burglar Alarm is all to adopt 125KHz low frequency signal to remove detection sensor key by the mode of electromagnetic induction, and be therefore that the stand-by power consumption of induction key is extremely low can standby reach the several years to the advantage of this mode, but the subject matter existing is that distance of reaction is shorter.
At present, under clean spacious environment, 3 ~ 4 meters farthest of distance of reaction are generally 2.5 meters of left and right in car in complex environment.The distance of distance of reaction will affect the practical application of such Car Burglar Alarm, for example, if theft-proof terminal is positioned over to tailstock portion, will cause a lot of flase alarms because distance of reaction is too short, therefore theft-proof terminal can only be put in car to the place close to from driver, this makes again the safety of theft-proof terminal and disguise be restricted.
Present general solution is the induction antenna composition aerial array that gathers in car, for example, locate to install multiple induction antennas at car door, change-speed box etc., and in the time of work, these induction antennas will send induced signal simultaneously and go to respond to the existence of key.The scheme of existing induction antenna array have a following major defect:
Cost is high, needs to be mounted to few 5 these type of antennas, and need when mounted vehicle to make change in general car; Installation site is comparatively fixing, and easily stolen car person finds and destroys; Need to connect the power supply in car.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Vehicle Anti-Theft System, induced enhancement device and method, can effectively improve the communication efficient of self induction anti-theft system, promotes the widespread use of self induction anti-theft system.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of Vehicle Anti-Theft System, comprising:
Theft-proof terminal, for sending low frequency induction signal, surveys described induction key;
Induction key, in the time receiving the low frequency induction signal that described theft-proof terminal sends, sends high frequency authentication signal; Induced enhancement device, for in the time detecting the low frequency induction signal that described theft-proof terminal sends, detect the high frequency authentication signal that described induction key sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and the low frequency induction signal sending by described induced enhancement device, described induction key is responded to detection.
Wherein, described induced enhancement device comprises:
High frequency receiver module, the high frequency authentication signal sending for surveying described induction key;
Low frequency receiver module, the low frequency induction signal sending for surveying described theft-proof terminal;
Low frequency sending module, for sending low frequency induction signal;
Processing module, when detecting at described low frequency receiver module the low frequency induction signal that described theft-proof terminal sends, control described high frequency receiver module and start to detect the high frequency authentication signal that described induction key sends, in the time that described high frequency receiver module does not detect described high frequency authentication signal, control described low frequency sending module and send low frequency induction signal, and the low frequency induction signal sending by described low frequency sending module, described induction key is responded to detection
Wherein, described induced enhancement device also comprises: supply module, and for described processing module, described high frequency receiver module, described low frequency receiver module and described low frequency sending module are powered.
Wherein, described processing module also for, send after low frequency induction signal at described low frequency sending module, or described high frequency receiver module detects after the high frequency authentication signal that described induction key sends, control described supply module and enter dormant state.
Embodiments of the invention also provide a kind of induced enhancement device, for in the time detecting the low frequency induction signal that theft-proof terminal sends, detect the high frequency authentication signal that induction key sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and by described low frequency induction signal, described induction key is responded to detection.
Wherein, induced enhancement device comprises:
High frequency receiver module, the high frequency authentication signal sending for surveying described induction key;
Low frequency receiver module, the low frequency induction signal sending for surveying described theft-proof terminal;
Low frequency sending module, for sending low frequency induction signal;
Processing module, when detecting at described low frequency receiver module the low frequency induction signal that described theft-proof terminal sends, control described high frequency receiver module and start to detect the high frequency authentication signal that described induction key sends, in the time that described high frequency receiver module does not detect described high frequency authentication signal, control described low frequency sending module and send low frequency induction signal, and the low frequency induction signal sending by described low frequency sending module and, described induction key is responded to detection.
Wherein, above-mentioned induced enhancement device also comprises:
Supply module, for powering to described processing module, described high frequency receiver module, described low frequency receiver module and described low frequency sending module.
Wherein, described processing module also for, send after low frequency induction signal at described low frequency sending module, or described high frequency receiver module detects after the high frequency authentication signal that described induction key sends, control described supply module and enter dormant state.
Embodiments of the invention also provide a kind of method of induced enhancement, are applied to induced enhancement device, in the time detecting the low frequency induction signal that theft-proof terminal sends, detect the high frequency authentication signal that induction key sends;
If when described high frequency authentication signal do not detected, send low frequency induction signal, and by described low frequency induction signal, described induction key is responded to detection.
Wherein, said method also comprises: sending after low frequency induction signal, or detecting that after the high frequency authentication signal that sends of induction key, the supply module of controlling described induced enhancement device enters dormant state.
The beneficial effect of technique scheme of the present invention is as follows:
In such scheme, by in the time detecting theft-proof terminal and send low frequency induction signal, detect the high frequency authentication signal that induction key sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and the low frequency induction signal sending by described induced enhancement device, described induction key is surveyed, effectively improve the communication efficient of self induction anti-theft system, promote the widespread use of self induction anti-theft system.
Brief description of the drawings
Fig. 1 is the overall architecture schematic diagram of Vehicle Anti-Theft System of the present invention;
Fig. 2 is the structural representation of the induced enhancement device shown in Fig. 1;
Fig. 3 is the execution schematic flow sheet of induced enhancement device of the present invention.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, a kind of Vehicle Anti-Theft System, comprising: theft-proof terminal 10, for sending low frequency induction signal, described induction key 20 is surveyed; Induction key 20, in the time receiving the low frequency induction signal that theft-proof terminal sends, sends high frequency authentication signal;
Induced enhancement device 30, when to the low frequency induction signal of described theft-proof terminal, detect the high frequency authentication signal that described induction key 20 sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and the low frequency induction signal sending by described induced enhancement device 30, described induction key 20 is responded to detection.
In this embodiment of the present invention, induction key 20 generally needs car owner to carry, and receives the low frequency induction signal that theft-proof terminal 10 sends after getting on the bus, and feeling of success should automatically send afterwards high frequency authentication signal and confirm to theft-proof terminal 10, theft-proof terminal 10 is general adopts powered battery, and can arbitrarily hide and be positioned over any position in car, and this theft-proof terminal 10 can be surveyed to realize automatic guard setup or withdraw a garrison responding to key 20 according to the state of kinematic motion of car body, and induced enhancement device 30 can arbitrarily be placed in car, it can carry out induced enhancement intelligently according to the communication conditions between theft-proof terminal 10 and induction key 20, to realize the object of induced enhancement, specifically respond to by detection the high frequency authentication signal that key 20 sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and the low frequency induction signal sending by described induced enhancement device 30, described induction key is responded to detection, effectively improve the communication efficient of self induction anti-theft system, promote the widespread use of self induction anti-theft system.
In another embodiment of the present invention, as shown in Figure 2, described induced enhancement device 30 comprises:
High frequency receiver module 302, the high frequency authentication signal sending for surveying described induction key 20;
Low frequency induction module 301, the low frequency induction signal sending for surveying theft-proof terminal, and send low frequency induction signal; Wherein, described low frequency induction module 301 comprises: low frequency receiver module 306, the low frequency induction signal sending for surveying described theft-proof terminal; Low frequency sending module 305, for sending low frequency induction signal;
Processing module 303, for in the time detecting the low frequency induction signal that described theft-proof terminal 10 sends, control described high frequency receiver module 302 and start to detect the high frequency authentication signal that described induction key 20 sends, in the time that described high frequency receiver module 302 does not detect described high frequency authentication signal, control described low frequency sending module 305 and send low frequency induction signal, and the low frequency induction signal sending by described low frequency sending module 301, described induction key 20 is surveyed.Thereby strengthen the detection success ratio to induction key 20, effectively improved the communication efficient of self induction anti-theft system.
And further, described induced enhancement device 30 can also comprise: supply module 304, and for described processing module 303, described high frequency receiver module 302, described low frequency receiver module 306 and low frequency sending module 305 are powered.
Accordingly, described processing module 303 is sent after low frequency induction signal at described low frequency sending module 305, or described high frequency receiver module 302 detects after the high frequency authentication signal that described induction key 20 sends, and controls described supply module 304 and enters dormant state.
In this embodiment of the present invention, processing module 303 is central processing unit of this induced enhancement device 30, and responsible coordination low frequency induction module 301, high frequency receiver module 302 carry out collaborative work, realize the object that intelligent-induction strengthens; In general, the power consumption of low frequency receiver module 306 is lower, but the power consumption of low frequency sending module 305 is higher, therefore avoids at work opening low frequency sending module 305 as far as possible, and adoptable low frequency signal is as 125KHz etc.
The high frequency authentication signal that high frequency receiver module 302 sends for monitoring induction key 20, adoptable high-frequency signal is as 315MHz, 433MHz, 985MHz etc.
Supply module 304, for induced enhancement device 30 provides power supply supply, is generally small-capacity cells, and battery types can be button cell, dry storage battery etc.
As shown in Figure 3, the workflow of above-mentioned induced enhancement device 30 is as follows:
Before not sensing the low frequency induction signal of theft-proof terminal 10 always in dormant state, wherein dormant state refers to and closes low frequency induction module 301 and high frequency receiver module 302, processing module 303 in ultra-low power standby, and under dormant state, the working current of this device generally maintains and receives peace level;
Occur that at car body when displacement theft-proof terminal 10 will send low frequency induction signal induction key 20 is surveyed;
Step 401, induced enhancement device 30 detects the low frequency induction signal of theft-proof terminal 10;
Step 402, induced enhancement device 30 will be opened high frequency receiver module 302 at once, monitors the high frequency authentication signal that self induction key 20 sends;
Step 403, the high frequency authentication signal whether induced enhancement device 30 can receive self induction key 20 by basis judges: if high frequency authentication signal successfully detected, enter step 404;
Step 404, induced enhancement device 30 will be closed high frequency receiver module 302, low frequency induction module 301 at once, proceed to step 405;
Step 405; Reenter dormant state;
Step 406, if high frequency authentication signal cannot be detected, can judge that induction key 20 is beyond the induction detection range of theft-proof terminal 10, induced enhancement device 30 will be opened at once low frequency sending module 305 and broadcast low frequency induction signal continuation detection key 20, be sent rear high frequency receiver module 302, the low frequency induction module 301 of automatically closing, then enter step 404, then enter step 405.
The present invention proposes anti-theft system, by increasing induced enhancement device 30, and that this induced enhancement device 30 has is battery-powered, low power operation, Intelligent Measurement processing, small-sized light and handy, can arbitrarily hide placement, thereby effectively improve the communication efficient of self induction anti-theft system, promote the widespread use of self induction anti-theft system.
Again as shown in Figure 2, embodiments of the invention also provide a kind of induced enhancement device 30, for in the time detecting the low frequency induction signal that theft-proof terminal sends, detect the high frequency authentication signal that induction key sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and by described low frequency induction signal, described induction key is responded to detection.
Wherein, this induced enhancement device 30 specifically comprises:
High frequency receiver module 302, the high frequency authentication signal sending for detection of described induction key;
Low frequency induction module 301, for surveying low frequency induction signal, and sends low frequency induction signal; Wherein, this low frequency induction module 301 comprises: low frequency receiver module 306, the low frequency induction signal sending for surveying described theft-proof terminal; Low frequency sending module 305, for sending low frequency induction signal;
Processing module 303, for in the time detecting the low frequency induction signal that described theft-proof terminal sends, control described high frequency receiver module 302 and start to detect the high frequency authentication signal that described induction key sends, in the time that described high frequency receiver module does not detect described high frequency authentication signal, control described low frequency sending module 305 and send low frequency induction signal, and the low frequency induction signal sending by described low frequency sending module 305, described induction key 20 is responded to detection.
Wherein, above-mentioned induced enhancement device 30 can also comprise: supply module 304, and for described processing module 303, described high frequency receiver module 302 and described low frequency receiver module 306 and described low frequency sending module 305 are powered.
Described processing module 303 is sent after low frequency induction signal at described low frequency sending module 305, or described high frequency receiver module 302 detects after the high frequency authentication signal that described induction key sends, and controls described supply module 304 and enters dormant state.
That this induced enhancement device 30 has is battery-powered, low power operation, Intelligent Measurement processing, small-sized light and handy, can arbitrarily hide placement, thereby effectively improve the communication efficient of self induction anti-theft system, promote the widespread use of self induction anti-theft system.
Embodiments of the invention also provide a kind of method of induced enhancement, are applied to induced enhancement device, comprising:
In the time detecting the low frequency induction signal that theft-proof terminal sends, detect the high frequency authentication signal that induction key sends;
If when described high frequency authentication signal do not detected, send low frequency induction signal, and by described low frequency induction signal, described induction key is responded to detection.
Wherein, said method also comprises:
Send after low frequency induction signal at induced enhancement device, or detect that after the high frequency authentication signal that sends of induction key, the supply module of controlling described induced enhancement device enters dormant state.
The specific implementation flow process of said method embodiment of the present invention as shown in Figure 3, comprising:
Step 401, induced enhancement device 30 detects the low frequency induction signal of theft-proof terminal 10;
Step 402, induced enhancement device 30 will be opened high frequency receiver module 302 at once, monitors the high frequency authentication signal that self induction key 20 sends;
Step 403, the high frequency authentication signal whether induced enhancement device 30 can receive self induction key 20 by basis judges: if high frequency authentication signal successfully detected, enter step 404;
Step 404, induced enhancement device 30 will be closed high frequency receiver module 302, low frequency induction module 301 at once, proceed to step 405;
Step 405; Reenter dormant state;
Step 406, if high frequency authentication signal cannot be detected, can judge that induction key 20 is beyond the induction detection range of theft-proof terminal 10, induced enhancement device 30 will be opened at once low frequency sending module 305 and broadcast low frequency induction signal continuation detection key 20, be sent rear high frequency receiver module 302, the low frequency induction module 301 of automatically closing, then enter step 404, then enter step 405.
The method embodiment of the present invention responds to by detection the high frequency authentication signal that key 20 sends equally, if when described high frequency authentication signal do not detected, send low frequency induction signal, and the low frequency induction signal sending by described induced enhancement device 30, described induction key is responded to detection, effectively improve the communication efficient of self induction anti-theft system, promote the widespread use of self induction anti-theft system.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Vehicle Anti-Theft System, is characterized in that, comprising:
Theft-proof terminal, for sending low frequency induction signal, surveys induction key;
Induction key, in the time receiving the low frequency induction signal that described theft-proof terminal sends, sends high frequency authentication signal; Induced enhancement device, for in the time detecting the low frequency induction signal that described theft-proof terminal sends, detect the high frequency authentication signal that described induction key sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and the low frequency induction signal sending by described induced enhancement device, described induction key is responded to detection.
2. Vehicle Anti-Theft System according to claim 1, is characterized in that, described induced enhancement device comprises:
High frequency receiver module, the high frequency authentication signal sending for surveying described induction key;
Low frequency receiver module, the low frequency induction signal sending for surveying described theft-proof terminal;
Low frequency sending module, for sending low frequency induction signal;
Processing module, when detecting at described low frequency receiver module the low frequency induction signal that described theft-proof terminal sends, control described high frequency receiver module and start to detect the high frequency authentication signal that described induction key sends, in the time that described high frequency receiver module does not detect described high frequency authentication signal, control described low frequency sending module and send low frequency induction signal, and the low frequency induction signal sending by described low frequency sending module, described induction key is responded to detection.
3. Vehicle Anti-Theft System according to claim 2, is characterized in that, described induced enhancement device also comprises: supply module, and for described processing module, described high frequency receiver module, described low frequency receiver module and described low frequency sending module are powered.
4. Vehicle Anti-Theft System according to claim 3, it is characterized in that, described processing module also for, send after low frequency induction signal at described low frequency sending module, or described high frequency receiver module detects after the high frequency authentication signal that described induction key sends, and controls described supply module and enters dormant state.
5. an induced enhancement device, is characterized in that,
For in the time detecting the low frequency induction signal that theft-proof terminal sends, detect the high frequency authentication signal that induction key sends, if when described high frequency authentication signal do not detected, send low frequency induction signal, and by described low frequency induction signal, described induction key is responded to detection.
6. induced enhancement device according to claim 5, is characterized in that, comprising:
High frequency receiver module, the high frequency authentication signal sending for surveying described induction key;
Low frequency receiver module, the low frequency induction signal sending for surveying described theft-proof terminal;
Low frequency sending module, for sending low frequency induction signal;
Processing module, when detecting at described low frequency receiver module the low frequency induction signal that described theft-proof terminal sends, control described high frequency receiver module and start to detect the high frequency authentication signal that described induction key sends, in the time that described high frequency receiver module does not detect described high frequency authentication signal, control described low frequency sending module and send low frequency induction signal, and the low frequency induction signal sending by described low frequency sending module and, described induction key is responded to detection.
7. induced enhancement device according to claim 6, is characterized in that, also comprises:
Supply module, for powering to described processing module, described high frequency receiver module, described low frequency receiver module and described low frequency sending module.
8. induced enhancement device according to claim 7, it is characterized in that, described processing module also for, send after low frequency induction signal at described low frequency sending module, or described high frequency receiver module detects after the high frequency authentication signal that described induction key sends, and controls described supply module and enters dormant state.
9. a method for induced enhancement, is applied to induced enhancement device, it is characterized in that,
In the time detecting the low frequency induction signal that theft-proof terminal sends, detect the high frequency authentication signal that induction key sends;
If when described high frequency authentication signal do not detected, send low frequency induction signal, and by described low frequency induction signal, described induction key is responded to detection.
10. the method for induced enhancement according to claim 9, is characterized in that, also comprises:
Sending after low frequency induction signal, or detecting that after the high frequency authentication signal that sends of induction key, the supply module of controlling described induced enhancement device enters dormant state.
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| CN201210475872.4A CN103832401B (en) | 2012-11-21 | 2012-11-21 | A kind of VATS Vehicle Anti-Theft System, induced enhancement device and method |
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| CN103832401B (en) | 2016-05-25 |
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