CN207601867U - A kind of antiwithdrawal device of blue tooth vehicular unit OBU - Google Patents
A kind of antiwithdrawal device of blue tooth vehicular unit OBU Download PDFInfo
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- CN207601867U CN207601867U CN201720824288.3U CN201720824288U CN207601867U CN 207601867 U CN207601867 U CN 207601867U CN 201720824288 U CN201720824288 U CN 201720824288U CN 207601867 U CN207601867 U CN 207601867U
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- electronic tags
- active anti
- obu
- demolition electronic
- board units
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Abstract
The utility model is related to a kind of antiwithdrawal devices of blue tooth vehicular unit OBU, and including the active anti-demolition electronic tags being connect with board units OBU by Bluetooth communication, active anti-demolition electronic tags are made of power module, MCU, bluetooth module, tamper detection module；Tamper detection module is magnet or mechanical switch, and active anti-demolition electronic tags are fixed on by magnet or mechanical switch on metal body.Board units OBU and active anti-demolition electronic tags irregularly carry out Information Authentication by bluetooth communication channel, thoroughly to solve the tamper purpose of board units OBU, the use of the compatible existing product of this method can be upgraded as free function, facilitate installation and application.
Description
Technical field
The utility model is related to intelligent transportation field, especially a kind of antiwithdrawal device of blue tooth vehicular unit OBU.
Background technology
At present, domestic no-stop charging system (ETC) experienced from exploring to pilot, then the stage to development in an all-round way,
Through an important component for becoming intelligent transportation system.On highway or urban road, roadside unit (RSU) with
The board units (OBU) installed on driving vehicle carry out dedicated short-range communication (DSRC), and board units are written and read with certification simultaneously
Be automatically performed travelling expenses collects work, greatly improves automation, the intelligent level of highway.In development from now on,
The technology can also realize ambiguity Path Recognition mark dot system or free flow congestion-pricing system.
In the technical standard formulated in country, board units OBU has specific tamper requirement, private in the case of no mandate
It has to make its failure from dismounting board units, prevents user that the vehicle of change privately of board units is evaded travelling expenses to reach
Purpose.In the prior art, the tamper means of board units OBU are using mechanical switch, and mechanical switch is detected by detection circuit
Flick or closed state judges whether board units are illegally dismantled.The actions such as vibrations, shake in order to prevent cause erroneous judgement, have
OBU firmwares can carry out simple logic analysis processing to detection circuit, the probability of erroneous judgement is reduced to minimum.It is this at present anti-
Tear technology existing defects open, user can bypass tamper function in the case of with no authorized and shift board units.Such as：It 1st, will peace
Board units on car windshield are cut down together with glass to be transferred on other vehicles (goods stock).
2nd, it in board units of normal mounting and preceding among the glass, is inserted into a thin sheet metal and fixes breaking-proof switch, Ran Houzai
Board units are disassembled and are transferred on other vehicles.
Utility model content
The purpose of this utility model is to solve defect of the existing technology, provides a kind of blue tooth vehicular unit OBU
Antiwithdrawal device, that is, give board units OBU be configured one " electronic tag key " indivisible with metal body, board units
Information Authentication is irregularly carried out by bluetooth communication channel with active electronic label, thoroughly to solve the tamper of board units OBU
Purpose.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of antiwithdrawal device of blue tooth vehicular unit OBU, it is active including being connect with board units OBU by Bluetooth communication
Anti-demolition electronic tags, active anti-demolition electronic tags are made of power module, MCU, bluetooth module, tamper detection module；
Tamper detection module is magnet or mechanical switch, and active anti-demolition electronic tags are fixed on by magnet or mechanical switch
On metal body.
Further, the antiwithdrawal device of above-mentioned blue tooth vehicular unit OBU a kind of, active anti-demolition electronic tags are led to by bluetooth
Letter channel is timed broadcast transmission verification information.
Further, the antiwithdrawal device of above-mentioned a kind of blue tooth vehicular unit OBU, the verification of active anti-demolition electronic tags broadcast
Comprising its identity code, dismounting alarm code information in information, data after encoding, encrypting by transmitting.
Further, the antiwithdrawal device of above-mentioned a kind of blue tooth vehicular unit OBU can be determined after board units OBU installation activation
When or not timing open and the verification of active electronic label interrupted, received by bluetooth communication channel from active anti-detaching electronic mark
The verification information of label, and be decoded, verify.
Further, the antiwithdrawal device of above-mentioned a kind of blue tooth vehicular unit OBU, the back side of active anti-demolition electronic tags with
The contact position of metal body is coated with adhesive sticker.
Further, the antiwithdrawal device of above-mentioned a kind of blue tooth vehicular unit OBU, metal body are on the inside of preceding car bonnet or interior
The metallic support of seat.
The beneficial effects of the utility model are：Board units OBU and active anti-demolition electronic tags pass through bluetooth communication channel
Information Authentication is irregularly carried out, thoroughly to solve the tamper purpose of board units OBU, the compatible existing product of this method makes
With can be upgraded as free function, facilitate installation and application.
Description of the drawings
Fig. 1 is the vehicle-mounted OBU of specific embodiment of the present invention and active anti-demolition electronic tags communication scheme；
Fig. 2 is the active anti-demolition electronic tags scheme of installation of specific embodiment of the present invention.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1 and Figure 2, a kind of antiwithdrawal device of blue tooth vehicular unit OBU, including passing through indigo plant with board units OBU1
Tooth communication connection active anti-demolition electronic tags 2, active anti-demolition electronic tags 2 by power module 21, MCU22, bluetooth module 23,
Tamper detection module 24 forms, and tamper detection module 24 is magnet 241 or mechanical switch 242, and active anti-demolition electronic tags 2 pass through
Magnet 241 or mechanical switch 242 are fixed on metal body 3.
In use, active anti-demolition electronic tags 2 send verification information, board units OBU1 by bluetooth communication channel timing
Active electronic label verification interruption is opened in timing or not timing, is shown that board units OBU is not dismantled illegally by verification, is located
In normal operating conditions.Active anti-demolition electronic tags 2 are to carry out tamper upgrading to bluetooth OBU on the basis of existing product, are increased
One wireless electron key with bluetooth communication channel, really realizes the dual tamper functions of board units OBU.
Active anti-demolition electronic tags 2 have unique identities code, match the identity code into OBU when issuing OBU.It is active anti-
Demolition electronic tags are attached on automobile metal vehicle body after startup, and broadcast transmission verification letter will be timed by bluetooth communication channel
Breath.Comprising its identity code, dismounting alarm code information in the verification information of active anti-demolition electronic tags broadcast, data by coding,
It is transmitted after encryption.The verification that meeting timing or not timing are opened to active electronic label after board units OBU installation activation is interrupted, and is led to
It crosses bluetooth communication channel and receives the verification information from active anti-demolition electronic tags, and be decoded, verify, board units OBU
Normal operating conditions can be kept by being verified, and otherwise, be not proved to be successful then in certain time or under certain frequency of failure
Judge that board units OBU is abnormal, and in failure state.
The design of tamper detection module 24 uses hall device (magnet) and mechanical switch double design, both tamper knots
Structure is coordination.Any tamper design is detected as dismantling, then active anti-demolition electronic tags enter stopping transmission verification letter
The state of breath.Pass through structure design so that when active anti-demolition electronic tags are close to metal, magnet positions change and then change tamper
Testing result.Active anti-demolition electronic tags distinguish positive and negative, are pasted on metal body 3 by 3M adhesive stickers 4, such as close
The positions such as the metallic support of interior, the interior seat of the preceding car bonnet of windshield.
In the present embodiment, board units OBU1 and active anti-demolition electronic tags 2 are irregularly carried out by bluetooth communication channel
Information Authentication, thoroughly to solve the tamper purpose of board units OBU, the use of the compatible existing product of this method can be used as certainly
Function is selected to be upgraded, facilitates installation and application.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the utility model principle, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively
Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (4)
1. a kind of antiwithdrawal device of blue tooth vehicular unit OBU, active anti-including being connect with board units OBU by Bluetooth communication
Demolition electronic tags, which is characterized in that active anti-demolition electronic tags are by power module, MCU, bluetooth module, tamper detection module group
Into；
The tamper detection module is magnet or mechanical switch, and active anti-demolition electronic tags are fixed by magnet or mechanical switch
On metal body；Active anti-demolition electronic tags are timed broadcast transmission verification information by bluetooth communication channel, active anti-
Comprising its identity code, dismounting alarm code information in the verification information of demolition electronic tags broadcast, data after encoding, encrypting by passing
It is defeated.
A kind of 2. antiwithdrawal device of blue tooth vehicular unit OBU according to claim 1, which is characterized in that board units OBU
The verification that meeting timing or not timing are opened to active electronic label after installation activation is interrupted, and is come from by bluetooth communication channel reception
The verification information of active anti-demolition electronic tags, and be decoded, verify.
A kind of 3. antiwithdrawal device of blue tooth vehicular unit OBU according to claim 1, which is characterized in that active tamper electricity
The back side of subtab is coated with adhesive sticker with the contact position with metal body.
4. the antiwithdrawal device of a kind of blue tooth vehicular unit OBU according to claim 3, which is characterized in that metal body is
Preceding car bonnet inside or the metallic support of interior seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720824288.3U CN207601867U (en) | 2017-07-10 | 2017-07-10 | A kind of antiwithdrawal device of blue tooth vehicular unit OBU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720824288.3U CN207601867U (en) | 2017-07-10 | 2017-07-10 | A kind of antiwithdrawal device of blue tooth vehicular unit OBU |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207601867U true CN207601867U (en) | 2018-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720824288.3U Active CN207601867U (en) | 2017-07-10 | 2017-07-10 | A kind of antiwithdrawal device of blue tooth vehicular unit OBU |
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| CN (1) | CN207601867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111353740A (en) * | 2020-02-25 | 2020-06-30 | 深圳冰河导航科技有限公司 | Tool management tracking system and method |
| CN111784855A (en) * | 2019-04-04 | 2020-10-16 | 上海搜林信息技术有限公司 | Built-in card standard single-piece type vehicle-mounted unit and anti-dismounting method thereof |
-
2017
- 2017-07-10 CN CN201720824288.3U patent/CN207601867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111784855A (en) * | 2019-04-04 | 2020-10-16 | 上海搜林信息技术有限公司 | Built-in card standard single-piece type vehicle-mounted unit and anti-dismounting method thereof |
| CN111353740A (en) * | 2020-02-25 | 2020-06-30 | 深圳冰河导航科技有限公司 | Tool management tracking system and method |
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