CN207624024U - A kind of electronic tag - Google Patents
A kind of electronic tag Download PDFInfo
- Publication number
- CN207624024U CN207624024U CN201721458414.4U CN201721458414U CN207624024U CN 207624024 U CN207624024 U CN 207624024U CN 201721458414 U CN201721458414 U CN 201721458414U CN 207624024 U CN207624024 U CN 207624024U
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- CN
- China
- Prior art keywords
- cable
- tamper
- signal
- electronic tag
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to a kind of electronic tags, including tamper cable, RF cable, electronic tag main body module and Anneta module；The Anneta module is connect by the tamper cable, the RF cable with the electronic tag main body module；The tamper cable and the RF cable are mutual indepedent；The tamper cable is for transmitting dismounting signal, and the RF cable is for transmitting radiofrequency signal.The beneficial effects of the utility model are breaking-proof switch being placed on Anneta module, and tamper signal wire is detached with rf signal line so that digital signal is relatively independent with analog signal, circuit is simple, signal stabilization, reduces the probability of tamper false triggering, and effectively reduces development cost.
Description
Technical field
The utility model is related to intelligent transportation field more particularly to a kind of electronic tags.
Background technology
Electronic tag (OBU) in ETC system includes two kinds of muzzle-loading and rear-loading type.Muzzle-loading OBU is before automobile manufacture
It is just mounted in automobile, is powered by vehicle power supply.And rear-loading type OBU is entirely attached on shield glass, and electricity is passed through
Pond powers, and has high requirements to the power consumption of product, limits OBU service lifes, and block pilot's line of vision, influences interior U.S.
It sees, so muzzle-loading OBU increasingly has been favored by people, becomes development trend.
Muzzle-loading OBU major ways are that OBU main bodys and antenna separate, and antenna is placed in etui, front windshield glass is attached to
On glass, and OBU main bodys are placed on other positions, and the realization method of tamper is mainly electronics tamper and mechanical tamper.It is anti-for electronics
It tears open, is compared with the code name being pre-stored in OBU in use, OBU reads Vehicle Identification Number by internal bus, it is this
Mode development cost is high, difficult wiring.For mechanical tamper, has at present and radiofrequency signal and dismounting signal are combined and carried out again
The mode of Signal separator, this mode signal processing circuit is complicated, and digital signal influences each other with analog signal, is easy to draw
Play jitter.
Utility model content
For existing muzzle-loading OBU problems faceds, the utility model proposes a kind of electronic tags.It takes out stitches including anti-
Cable, RF cable, electronic tag main body module and Anneta module；The Anneta module passes through the tamper cable, the radio frequency
Cable is connect with the electronic tag main body module；The tamper cable and the RF cable are mutual indepedent；It is described to prevent taking out stitches
Cable is for transmitting dismounting signal, and the RF cable is for transmitting radiofrequency signal.
The electronic tag main body module includes microprocessor and radio circuit, the Anneta module include breaking-proof switch and
Antenna.
The breaking-proof switch is connect by the tamper cable with the microprocessor, and the breaking-proof switch is according to itself shape
State generates the dismounting signal, and the dismounting signal sends the microprocessor, the microprocessor to by the tamper cable
Device judges whether electronic tag has been disassembled according to the dismounting signal.
The antenna is connect by RF cable with the radio circuit, and the antenna passes through the radiofrequency signal described
RF cable is transmitted to the radio circuit, and the radio circuit demodulates the radiofrequency signal, sends the microprocessor to
It is handled；The digital signal of the microprocessor is modulated by the radio circuit, is transmitted to by the RF cable
The antenna is emitted.
The beneficial effects of the utility model are：Breaking-proof switch is placed on Anneta module, tamper signal wire is believed with radio frequency
Number line separation so that digital signal is relatively independent with analog signal, and circuit is simple, signal stabilization, reduces tamper false triggering
Probability, and effectively reduce development cost.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the high-level schematic functional block diagram of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Below in conjunction with the accompanying drawings, the technical solution in the utility model is described in further detail.
As shown in Figure 1, the high-level schematic functional block diagram of the utility model.Including tamper cable 300, RF cable 400, electronics
Tag body module 100 and Anneta module 200；The Anneta module 200 passes through the tamper cable 300, the RF cable
400 connect with the electronic tag main body module 100；The tamper cable 300 is mutual indepedent with the RF cable 400；Institute
State tamper cable 300 for transmit dismantle signal, the RF cable 400 be used for transmit the radiofrequency signal from roadside unit.
The electronic tag main body module 100 includes microprocessor 101 and radio circuit 102, and the Anneta module 200 wraps
Include breaking-proof switch 201 and antenna 202.
The breaking-proof switch 201 is connect by the tamper cable 300 with the microprocessor 101, the breaking-proof switch
201 generate the dismounting signal according to oneself state, and the dismounting signal sends micro- place to by the tamper cable 300
Device 101 is managed, the microprocessor 101 judges whether electronic tag has been disassembled according to the dismounting signal.
The antenna 202 is connect by RF cable 400 with the radio circuit 102, and the antenna 202 is for receiving institute
Radiofrequency signal is stated, the radiofrequency signal is transmitted to the radio circuit 102, the radio frequency electrical by the RF cable 400
Road 102 demodulates the radiofrequency signal, sends the microprocessor 101 to and is handled.The radio circuit 102 will be described micro-
The digital signal of processor 101 is modulated, and being transmitted to the antenna 202 by the RF cable 400 is emitted.
The explanation of above example is only intended to methods and core concept that help understands the utility model, it is clear that ability
The technical staff in domain can carry out the utility model spirit and scope of certain change without departing from the utility model, above-mentioned
Change will be also comprised within the utility model.
Claims (2)
1. a kind of electronic tag, which is characterized in that including tamper cable, RF cable, electronic tag main body module and antenna mould
Block；The Anneta module is connect by the tamper cable, the RF cable with the electronic tag main body module；It is described anti-
Take out stitches cable and the RF cable it is mutual indepedent；The tamper cable is for transmitting dismounting signal, and the RF cable is for passing
Send radiofrequency signal.
2. a kind of electronic tag according to claim 1, which is characterized in that the electronic tag main body module includes micro- place
It includes breaking-proof switch and antenna to manage device and radio circuit, the Anneta module；The breaking-proof switch by the tamper cable with
The microprocessor connection, the antenna are connect by RF cable with the radio circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458414.4U CN207624024U (en) | 2017-11-03 | 2017-11-03 | A kind of electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458414.4U CN207624024U (en) | 2017-11-03 | 2017-11-03 | A kind of electronic tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207624024U true CN207624024U (en) | 2018-07-17 |
Family
ID=62827727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721458414.4U Active CN207624024U (en) | 2017-11-03 | 2017-11-03 | A kind of electronic tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207624024U (en) |
-
2017
- 2017-11-03 CN CN201721458414.4U patent/CN207624024U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |