CN204155321U - A kind of access device of rear-loading type electronic tag - Google Patents
A kind of access device of rear-loading type electronic tag Download PDFInfo
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- CN204155321U CN204155321U CN201420675864.9U CN201420675864U CN204155321U CN 204155321 U CN204155321 U CN 204155321U CN 201420675864 U CN201420675864 U CN 201420675864U CN 204155321 U CN204155321 U CN 204155321U
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- electronic tag
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Abstract
The utility model discloses a kind of access device of rear-loading type electronic tag, comprise microprocessor, power module, radio frequency processing module, antenna and communication interface.Radio frequency processing module and antenna and electronic tag carry out radio communication, obtain all relevant informations of electronic tag; The access device of rear-loading type electronic tag can exist as a kind of external device separately, directly connect Vehicle Controller by wired mode when needing and carry out data transmission, the information of the electronic tag needed for Vehicle Controller is uploaded, therefore, contacting of electronic tag OBU and vehicle is really realized not changing under current traditional working mode, meanwhile, also reduce as realizing technical costs that this object produces and time cost.
Description
Technical field
The utility model relates to intelligent transportation and electric non-stop toll (ETC) technical field, particularly relates to a kind of access device of rear-loading type electronic tag.
Background technology
ETC (Electronic Toll Collection, i.e. electronic charging system without parking) be current state-of-the-art Fare Collection System in the world, be one of service function of intelligent transportation system, vehicular traffic, by stopping during road junction, namely can realize automatic charging.ETC mainly contains two parts composition, i.e. board units OBU (On Board Unit) and roadside unit RSU (Road Side), RSU is generally arranged on the door frame of high speed the lane in which the drivers should pay fees, for communicating with the OBU be attached on shield glass.Board units OBU is one of key equipment in ETC.
Domestic OBU is generally rear-loading type OBU, is directly pasted onto on the front windshield of automobile with glue, and the Anti-dismantling button by means of only machinery judges whether electronic tag can be used, and does not really realize the contact of electronic tag OBU and vehicle; Secondly, there is a small amount of muzzle-loading OBU to need to change the mode of operation of electronic tag at present, and need the cooperation energetically of vehicle supplier to realize electronic tag and vehicle really connects, substantially increase cost; Again, present scientific and technological high speed development, mobile unit variation, much can independently exist, to be connected by cable or interface inserts and can communicate with onboard system, but in the technical field of electric non-stop toll, can not realize controlling rear-loading type electronic tag by onboard system, therefore, how easily rear-loading type electronic tag access onboard system is become a difficult problem urgently to be resolved hurrily.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of access device of rear-loading type electronic tag, under the prerequisite of mode of operation not changing traditional rear-loading type OBU, can realize OBU and vehicle really connects, Vehicle Controller simply can obtain the relevant information of electronic tag OBU.
The purpose of this utility model, is to provide a kind of access device of rear-loading type electronic tag, and this device comprises power module, microprocessor module, radio frequency processing module, antenna and communication interface; Wherein power module is used for as rear-loading type electronic tag access device is powered; Microprocessor, as the control module of the access device of rear-loading type electronic tag, plans as a whole the workflow of whole device; Radio frequency processing module comprises receiving loop and launching circuit, radio-frequency (RF) switch and antenna is coordinated jointly to form radio communication main body, radio frequency processing module and antenna all belong to the 5.8GHz frequency range in electric non-stop toll (ETC) technical field, meet Dedicated Short Range Communications, technology (DSRC) requirement, radio frequency processing module and antenna fit through wireless mode and communicate with electronic tag OBU, convenient its relevant information of acquisition; Communication interface is CAN interface and/or USB interface, vehicle carried electronic label access device is communicated with entire car controller by above-mentioned interface, wherein communication interface part is divided and is comprised control circuit and transmission circuit, can normally receive order by microprocessor-based control and make relevant response, thus realize contacting of rear-loading type electronic tag OBU and vehicle.
Compared with prior art, the beneficial effects of the utility model are, contacting of electronic tag OBU and vehicle is really realized not changing under current traditional working mode, microprocessor internal is stored in after can reading the information of OBU to wirelessly, when being connected with the Vehicle Controller of vehicle by wired mode, the OBU information stored is transferred to Vehicle Controller, so that Vehicle Controller knows the relevant information of electronic tag OBU in time; Meanwhile, also reduce as realizing technical costs that this object produces and time cost.
Accompanying drawing explanation
Fig. 1 is principle functional block diagram of the present utility model.
Fig. 2 is the composition frame chart of radio frequency processing module in the utility model.
Fig. 3 is CAN interface and/or USB interface block diagram in the utility model.
Embodiment
By reference to the accompanying drawings the utility model is further illustrated below by embodiment.Obviously, described embodiment is to describe the utility model in detail, does not represent concrete enforcement of the present utility model and is only confined to these.For the utility model person of ordinary skill in the field, basis of the present utility model is easy to can carry out change and replaces.
Fig. 1 is principle functional block diagram of the present utility model, comprises following several module: microprocessor 102, power module 108, radio frequency processing module 101, antenna 106, CAN interface 103 and/or usb 1 05.Other modules, if electronic tag 107 and Vehicle Controller 104 are all independent of rear-loading type electronic tag access device, just convenient its work relationship of elaboration.Described power module 108 can comprise power-switching circuit, as LDO and correlation filtering device and Voltage Cortrol device, for the access device of rear-loading type electronic tag is powered, is embodied in microprocessor 102 and radio frequency processing module 101 is powered; Radio frequency processing module 101 coordinates with antenna 106, communicate through Wireless microwave with electronic tag 107, when radio frequency processing module 101 is after order sends by antenna 106, electronic tag 107 receives this order and resolves, then after process accordingly also framing, reply to the access device of rear-loading type electronic tag, and will be stored in the storage space of microprocessor 102 after all relevant informations acquisitions of OBU; Microprocessor 102 is communicated with Vehicle Controller 104 according to the host-host protocol of regulation by CAN interface 103 and/or usb 1 05, mutual transmission information, the system informations such as the Anti-dismantling of vehicle identifiers and OBU can be comprised, can solve under the mode of operation not changing rear-loading type OBU traditional OBU can not really and vehicle carry out the drawback of binding.
As shown in Figure 2, radio frequency processing module is made up of radio frequency chip 202, launching circuit 201, receiving loop 205 and change-over switch 203.Wherein radio frequency chip 202 and antenna 204 can belong to 5.8GHz frequency range.Microprocessor 206 and antenna 204 are only used to describe its principle of work.Radio frequency chip 202 is connected by universal serial bus with microprocessor 206, also has control line and interrupt line in addition; Microprocessor 206 provides two pins to control change-over switch 203, switches to emission state or accepting state according to duty.It is only a kind of mode of embodiment herein; know person skilled in art to be easy to can expect utilizing switching diode or other devices equally can realize this function to replace change-over switch 203; or control pin by one carry out state switching simultaneously after phase inverter, also should in the protection domain of this patent.
Fig. 3 is CAN interface and/or USB interface block diagram in the utility model, mainly comprises control circuit 302 and transmission circuit 303, coordinates above-mentioned two modules to communicate with Vehicle Controller 304 by microprocessor 301.Communication process is by software simulating, and personnel are in the art easy to expect.The circuit of this module consists of knowledge, repeats no more herein.
The above; for the comparatively preferred embodiment of the utility model; only its principle is set forth; this elaboration just understands method of the present utility model and core concept for helping; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art according to thought of the present utility model, embodiment and technical scheme revised a little, all should be included in protection domain of the present utility model.
Claims (4)
1. an access device for rear-loading type electronic tag, is characterized in that: comprise microprocessor, power module, radio frequency processing module, antenna and communication interface.
2. the access device of a kind of rear-loading type electronic tag according to claim 1, is characterized in that, described radio frequency processing module comprises receiving loop and launching circuit, jointly forms radio communication main body with antenna.
3. the access device of a kind of rear-loading type electronic tag according to claim 1, is characterized in that, described communication interface can be CAN interface and/or USB interface.
4. the access device of a kind of rear-loading type electronic tag according to claim 2, is characterized in that, described radio frequency processing module belongs to 5.8GHz frequency range, and described antenna is 5.8GHz antenna, carries out information interaction with electronic tag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675864.9U CN204155321U (en) | 2014-11-06 | 2014-11-06 | A kind of access device of rear-loading type electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675864.9U CN204155321U (en) | 2014-11-06 | 2014-11-06 | A kind of access device of rear-loading type electronic tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155321U true CN204155321U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420675864.9U Active CN204155321U (en) | 2014-11-06 | 2014-11-06 | A kind of access device of rear-loading type electronic tag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364363B (en) * | 2018-02-11 | 2020-11-13 | 深圳市图灵奇点智能科技有限公司 | Vehicle-mounted system and method for realizing electronic toll collection and vehicle |
| CN112822658A (en) * | 2020-12-31 | 2021-05-18 | 北京千方科技股份有限公司 | ETC front-mounted electronic tag and working method thereof |
-
2014
- 2014-11-06 CN CN201420675864.9U patent/CN204155321U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364363B (en) * | 2018-02-11 | 2020-11-13 | 深圳市图灵奇点智能科技有限公司 | Vehicle-mounted system and method for realizing electronic toll collection and vehicle |
| CN112822658A (en) * | 2020-12-31 | 2021-05-18 | 北京千方科技股份有限公司 | ETC front-mounted electronic tag and working method thereof |
| CN112822658B (en) * | 2020-12-31 | 2022-12-30 | 北京千方科技股份有限公司 | ETC front-mounted electronic tag and working method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |