CN206060772U - Band prevents the vehicle electronics communication apparatus of illegal disassembling function - Google Patents
Band prevents the vehicle electronics communication apparatus of illegal disassembling function Download PDFInfo
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- CN206060772U CN206060772U CN201620940821.8U CN201620940821U CN206060772U CN 206060772 U CN206060772 U CN 206060772U CN 201620940821 U CN201620940821 U CN 201620940821U CN 206060772 U CN206060772 U CN 206060772U
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- resistance
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- vehicle electronics
- detecting circuit
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Abstract
Band prevents the vehicle electronics communication apparatus of illegal disassembling function, whether the antenna impedance detection module, real time contrast's antenna impedance information and antenna original impedance information including real-time detection communication antenna resistance value exceedes the single-chip microcomputer of threshold value, the warning message that reception single-chip microcomputer sends is changed into radiofrequency signal, and sends the communication module of communication antenna to, the radiofrequency signal of communication module is converted into the communication antenna of radiated electromagnetic wave, the external memory storage of antenna original impedance information is stored, is carried out the alarm of warning reminding；The equipment increased the difficulty for cracking tamper mechanism, detatching-proof system will not be operated using external power supply because of unauthorized person.
Description
Technical field
This utility model belongs to vehicle electronics domain of communication equipment, and specifically a kind of band prevents the vehicle-mounted of illegal disassembling function
Electronicss.
Background technology
With the development of automobile industry, electronicss on automobile, are more and more used.Due to these electronic equipments
It is not only expensive, and be an important component part of automotive system.Once electronic equipment is illegally dismounted or stolen lose
Lose, its consequence is not only loss economically and even more brings safely major hidden danger to car load；Therefore vehicle electronics communication apparatus is prevented
Tear open and antitheft be just increasingly concerned.
The means adopted for the prior art of illegal dismounting have：
1. outage detection method, i.e., can related disconnection electronic equipment and automotive interior power circuit when illegally dismantling.Using disconnected
Electric this trigger condition, judges occur illegally dismantling situation and pass through alarm and send information to car owner.Now equipment still makes
The action of warning is met with from charged pool.But this method has cracking, because illegally dismounting personnel can pass through external
After voltage, a pseudo- state is maintained, outage detection mechanism is cheated.
2. alignment sensor Infrared Detection Method, vehicle electronic device carry alignment sensor.Equipment is installed and first for the first time
After beginningization, location control sensor sends locking signal and sets to vehicle electronics when detecting vehicle electronic device and being subjected to displacement
Standby, locking module controls vehicle electronic device locking according to locking signal.This scheme needs additionally to increase a set of sensor core
Piece, increases hardware cost.
Utility model content
To solve the problems referred to above that prior art is present, this utility model provides the car that a kind of band prevents illegal disassembling function
Carry electronicss, increase cracks the difficulty of tamper mechanism, will not because of unauthorized person using external power supply come to tamper system
System is operated.
To achieve these goals, the technical essential of this utility model scheme is：Band prevents the vehicle mounted electric of illegal disassembling function
Sub- communication apparatus, including：
The antenna impedance detection module of real-time detection communication antenna resistance value,
Real time contrast's antenna impedance information and antenna original impedance information whether exceed threshold value single-chip microcomputer,
The warning message that reception single-chip microcomputer sends is changed into radiofrequency signal, and sends the communication mould of communication antenna to
Block,
By the radiofrequency signal of communication module be converted into radiated electromagnetic wave communication antenna,
The external memory storage of storage antenna original impedance information,
Carry out the alarm of warning reminding；
The single-chip microcomputer is connected with antenna impedance detection module, communication module, external memory storage, alarm respectively, described
Communication antenna is connected with communication module, antenna impedance detection module respectively.
Preferably, the antenna impedance detection module, including phase detecting circuit, amplitude detecting circuit, filter and amplification electricity
Road, measuring bridge, filter amplifier, waveform generator；The filter amplification circuit respectively with phase detecting circuit, amplitude detection
Circuit, measuring bridge are connected, and filter amplifier is connected with measuring bridge, waveform generator respectively, the phase detecting circuit, shake
Width detection is electrically connected.
Preferably, measuring bridge, including：Resistance R1, resistance R2, resistance R3, the resistance R1 are connected with resistance R2, resistance
R3 is connected with communication antenna Rz, and the resistance R1, resistance R2 are in parallel with resistance R3, communication antenna Rz.
Preferably, the waveform generator be connected between resistance R1 and resistance R3, resistance R2 and communication antenna Rz
Between.
As it is further preferred that the phase detecting circuit, amplitude detecting circuit are both connected to resistance R1 and resistance R2
Between, between resistance R3 and communication antenna Rz.
As it is further preferred that the amplitude detecting circuit in antenna impedance detection module is connected with single-chip microcomputer, measurement electricity
Bridge is connected with communication antenna.
Beneficial effect is this utility model compared with prior art：
1. increase the difficulty for cracking tamper mechanism, as long as the behavior for illegal dismounting occur occurs, result in antenna impedance special
Property change, without because unauthorized person using external power supply cheating to detatching-proof system.
2. communication antenna is carried using vehicle mounted communication equipment to replace the alignment sensor of specialty, save equipment cost.
Description of the drawings
This utility model 4 width of total accompanying drawing：
Fig. 1 is the vehicle electronics communication apparatus structured flowchart that band prevents illegal disassembling function；
Fig. 2 is vehicle electronics communication apparatus workflow diagram；
Fig. 3 is antenna impedance detection module structured flowchart；
Fig. 4 is measuring bridge structural representation.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.Following examples are only used for more clear
Chu's ground explanation the technical solution of the utility model, and protection domain of the present utility model can not be limited with this.
Embodiment 1
The vehicle electronics communication apparatus that a kind of band prevents illegal disassembling function is present embodiments provided, including：
The antenna impedance detection module of real-time detection communication antenna resistance value,
Real time contrast's antenna impedance information and antenna original impedance information whether exceed threshold value single-chip microcomputer,
The warning message that reception single-chip microcomputer sends is changed into radiofrequency signal, and sends the communication mould of communication antenna to
Block,
By the radiofrequency signal of communication module be converted into radiated electromagnetic wave communication antenna,
The external memory storage of storage antenna original impedance information,
Carry out the alarm of warning reminding；
The single-chip microcomputer is connected with antenna impedance detection module, communication module, external memory storage, alarm respectively, described
Communication antenna is connected with communication module, antenna impedance detection module respectively.
Embodiment 2
The present embodiment is the further restriction to embodiment 1, the antenna impedance detection module, including phase-detection electricity
Road, amplitude detecting circuit, filter amplification circuit, measuring bridge, filter amplifier, waveform generator；The filter amplification circuit
It is connected with phase detecting circuit, amplitude detecting circuit, measuring bridge respectively, filter amplifier is produced with measuring bridge, waveform respectively
Raw device is connected, and the phase detecting circuit, amplitude detection are electrically connected.Amplitude detecting circuit and list in antenna impedance detection module
Piece machine is connected, and measuring bridge is connected with communication antenna.
Preferably, measuring bridge, including：Resistance R1, resistance R2, resistance R3, the resistance R1 are connected with resistance R2, resistance
R3 is connected with communication antenna Rz, and the resistance R1, resistance R2 are in parallel with resistance R3, communication antenna Rz.The waveform generator point
Be not connected between resistance R1 and resistance R3, between resistance R2 and communication antenna Rz, the phase detecting circuit, amplitude detection electricity
Road is both connected between resistance R1 and resistance R2, between resistance R3 and communication antenna Rz.
Vehicle electronics communication apparatus installs certain fixed installation position in the car first, is wirelessly connected by mobile phone and equipment
Connect, and initialized, preserve original antenna impedance characteristic data, equipment is started working, into detection pattern, antenna impedance
Detection circuit starts to detect real-time antenna impedance characteristic.If the antenna impedance characteristic of detection is not changed in, continue to keep
Detection pattern simultaneously continues detection；If detection antenna impedance characteristic changes, send and report to the police and by communication module and day
Line sends warning message to car owner.
This utility model realize purpose be using antenna impedance detection module detect resistance value change, without because
Unauthorized person is cheated to detatching-proof system using external power supply；Communication antenna is carried using vehicle mounted communication equipment to replace specially
The alignment sensor of industry, saves equipment cost.Realize technological means that the purpose is adopted be each device and they between
Annexation, phase detecting circuit, amplitude detecting circuit used in this application, filter amplification circuit are prior art,
This is not construed as limiting.
The above, only the invention preferably specific embodiment, but the protection domain of the invention is not
Be confined to this, any those familiar with the art in the technical scope that the invention is disclosed, according to the present invention
The technical scheme of creation and its inventive concept equivalent or change in addition, should all cover the invention protection domain it
It is interior.
Claims (6)
1. band prevents the vehicle electronics communication apparatus of illegal disassembling function, it is characterised in that include：
The antenna impedance detection module of real-time detection communication antenna resistance value,
Real time contrast's antenna impedance information and antenna original impedance information whether exceed threshold value single-chip microcomputer,
Change into radiofrequency signal the warning message that sends of single-chip microcomputer is received, and send to communication antenna communication module,
By the radiofrequency signal of communication module be converted into radiated electromagnetic wave communication antenna,
The external memory storage of storage antenna original impedance information,
Carry out the alarm of warning reminding；
The single-chip microcomputer is connected with antenna impedance detection module, communication module, external memory storage, alarm respectively, the communication
Antenna is connected with communication module, antenna impedance detection module respectively.
2. band prevents the vehicle electronics communication apparatus of illegal disassembling function according to claim 1, it is characterised in that the antenna
Impedance detection module, including phase detecting circuit, amplitude detecting circuit, filter amplification circuit, measuring bridge, filter amplifier,
Waveform generator；The filter amplification circuit is connected with phase detecting circuit, amplitude detecting circuit, measuring bridge respectively, filtering
Amplifier is connected with measuring bridge, waveform generator respectively, and the phase detecting circuit is electrically connected with amplitude detection.
3. band prevents the vehicle electronics communication apparatus of illegal disassembling function according to claim 2, it is characterised in that measurement electricity
Bridge, including：Resistance R1, resistance R2, resistance R3, the resistance R1 are connected with resistance R2, and resistance R3 is connected with communication antenna Rz, institute
State resistance R1, resistance R2 in parallel with resistance R3, communication antenna Rz.
4. band prevents the vehicle electronics communication apparatus of illegal disassembling function according to claim 3, it is characterised in that the waveform
Generator is connected between resistance R1 and resistance R3, between resistance R2 and communication antenna Rz.
5. band prevents the vehicle electronics communication apparatus of illegal disassembling function according to claim 3, it is characterised in that the phase place
Detection circuit, amplitude detecting circuit be both connected between resistance R1 and resistance R2, between resistance R3 and communication antenna Rz.
6. band prevents the vehicle electronics communication apparatus of illegal disassembling function according to claim 2, it is characterised in that antenna impedance
Amplitude detecting circuit in detection module is connected with single-chip microcomputer, and measuring bridge is connected with communication antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620940821.8U CN206060772U (en) | 2016-08-25 | 2016-08-25 | Band prevents the vehicle electronics communication apparatus of illegal disassembling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620940821.8U CN206060772U (en) | 2016-08-25 | 2016-08-25 | Band prevents the vehicle electronics communication apparatus of illegal disassembling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060772U true CN206060772U (en) | 2017-03-29 |
Family
ID=58381446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620940821.8U Active CN206060772U (en) | 2016-08-25 | 2016-08-25 | Band prevents the vehicle electronics communication apparatus of illegal disassembling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206060772U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024726A (en) * | 2017-03-30 | 2017-08-08 | 合肥移顺信息技术有限公司 | Anti- electronic equipment removes detection means by mistake |
| CN110154977A (en) * | 2019-05-27 | 2019-08-23 | 上海星融汽车科技有限公司 | Identify car-mounted terminal removed method and its system |
| CN110456202A (en) * | 2019-08-23 | 2019-11-15 | 中控智慧(广东)科技有限公司 | A kind of tamper machine testing control circuit and electronic equipment |
| CN111987413A (en) * | 2020-07-03 | 2020-11-24 | 惠州市德赛西威智能交通技术研究院有限公司 | Vehicle-mounted antenna device and detection method thereof |
-
2016
- 2016-08-25 CN CN201620940821.8U patent/CN206060772U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024726A (en) * | 2017-03-30 | 2017-08-08 | 合肥移顺信息技术有限公司 | Anti- electronic equipment removes detection means by mistake |
| CN110154977A (en) * | 2019-05-27 | 2019-08-23 | 上海星融汽车科技有限公司 | Identify car-mounted terminal removed method and its system |
| CN110154977B (en) * | 2019-05-27 | 2020-06-26 | 上海星融汽车科技有限公司 | Method and system for identifying removal of vehicle-mounted terminal |
| CN110456202A (en) * | 2019-08-23 | 2019-11-15 | 中控智慧(广东)科技有限公司 | A kind of tamper machine testing control circuit and electronic equipment |
| CN111987413A (en) * | 2020-07-03 | 2020-11-24 | 惠州市德赛西威智能交通技术研究院有限公司 | Vehicle-mounted antenna device and detection method thereof |
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