CN214704701U

CN214704701U - Vehicle-mounted electronic tag

Info

Publication number: CN214704701U
Application number: CN202120466435.0U
Authority: CN
Inventors: 朱胜超; 何亚楠; 王忠笑
Original assignee: Beijing Wanji Technology Co Ltd
Current assignee: Beijing Wanji Technology Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-11-12
Anticipated expiration: 2031-03-04

Abstract

The embodiment of the utility model provides an on-vehicle electronic tags, including integrated antenna of glass, radio frequency module and OBU host system, radio frequency module has first casing, and OBU host system has the second casing, and the integrated antenna of glass is connected or the coupling is connected with the radio frequency module electricity, and radio frequency module's first casing is fixed on the glass of the integrated antenna of glass, and radio frequency module is connected with OBU host system electricity, and first casing can be dismantled with the second casing and be connected. The utility model discloses when improving the circuit performance, realized that OBU host system can dismantle with the separation of radio frequency module, for later maintenance and change reduce cost.

Description

Vehicle-mounted electronic tag

Technical Field

The utility model relates to an intelligent transportation equipment field, concretely relates to vehicle-mounted electronic label.

Background

ETC (electronic Toll collection) non-stop Toll collection system is the most advanced road and bridge Toll collection mode in the world at present. Through the special short-range communication of microwave between the vehicle-mounted electronic tag (OBU) installed on the windshield of the vehicle and the microwave antenna on the ETC lane of the toll station, the computer networking technology and the bank are utilized to carry out background settlement processing, so that the aim of paying the road and bridge fees of the vehicle passing through the road and bridge toll station without parking is fulfilled.

The OBU in the ETC system is classified into a front mount type and a rear mount type. The front-mounted OBU is installed in an automobile before the automobile leaves a factory and is powered by a vehicle-mounted power supply; the rear-mounted OBU is mounted on the vehicle front windshield by 3M glue. The front-mounted OBU has great limitation on the function expansion, the radio frequency module and the main control module of the rear-mounted OBU are integrated in one device, electromagnetic interference is easily caused, the design is difficult, the OBU needs to be integrally disassembled during maintenance and replacement, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a vehicle-mounted electronic tag realizes that OBU host system can dismantle with the separation of radio frequency module, reduces the circuit interference and the design degree of difficulty, for later maintenance and change reduce cost to be convenient for carry out the function extension.

The utility model provides an on-vehicle electronic tags, includes glass integrated antenna, radio frequency module and OBU host system, radio frequency module has first casing, OBU host system has the second casing, glass integrated antenna with radio frequency module electricity is connected or coupling connection, radio frequency module's first casing is fixed on glass integrated antenna's glass, radio frequency module with OBU host system electricity is connected, first casing with the connection can be dismantled to the second casing.

Optionally, the first housing includes a first surface and a second surface, the first surface is fixedly connected to the glass of the glass integrated antenna, and the second surface is provided with a first mounting structure;

the second shell comprises a third surface, a second mounting structure is arranged on the third surface, and the first mounting structure is matched with the second mounting structure to realize detachable connection of the first shell and the second shell.

Optionally, the first mounting structure is a groove, and the second mounting structure is a protrusion;

or, the first mounting structure is a protrusion, and the second mounting structure is a groove;

or, the first mounting structure is a buckle, and the second mounting structure is a clamping groove;

or, the first mounting structure is a clamping groove, and the second mounting structure is a buckle.

Optionally, the first mounting structure and the second mounting structure are both provided with metal contacts, and the radio frequency module is electrically connected with the OBU main control module through the metal contacts.

Optionally, the third surface is provided with a tamper device, and the first housing and the second housing are connected through the first mounting structure and the second mounting structure and then triggered once detached.

Optionally, the radio frequency module includes a modulation circuit and a radio frequency transceiver circuit.

The utility model discloses the beneficial effect who possesses lies in:

(1) the OBU main control module is separated from the radio frequency module, so that the function expansion of the OBU main control module is facilitated; the OBU main control module can be detached, later maintenance is easy, and replacement cost is reduced;

(2) the radio frequency module is independently designed and packaged, is not interfered by a power supply unit and other circuits, and has simpler design and better performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vehicle-mounted electronic tag according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another vehicle-mounted electronic tag according to an embodiment of the present invention;

fig. 3 is a functional block diagram of an on-vehicle electronic tag according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in connection with figures 1-2,

in this embodiment, the on-vehicle electronic tag includes glass integrated antenna 1, radio frequency module 2 and OBU host system 3, and radio frequency module 2 has first casing 21, and OBU host system 3 has second casing 31, and glass integrated antenna 1 is connected or coupled connection with radio frequency module 2 electricity, and first casing 21 of radio frequency module 2 is fixed on the glass of glass integrated antenna, and radio frequency module 2 is connected with OBU host system 3 electricity, and first casing 21 can dismantle with second casing 31 and be connected.

The radio frequency module 2 and the OBU main control module 3 are detachably connected physically, so that the function expansion of the OBU main control module 3 is facilitated, the later maintenance is easy, and the replacement cost is reduced; meanwhile, the radio frequency module 2 is independently designed and packaged, is not interfered by a power supply unit and other circuits, and is simpler in design and better in performance.

In a specific embodiment, the first housing 21 of the rf module 2 includes a first surface 201 and a second surface 202, wherein the first surface 201 is fixedly connected to the glass of the glass integrated antenna, and the second surface 202 is provided with a first mounting structure 211; the second housing 31 of the OBU main control module 3 includes a third surface 301, a second mounting structure 311 is disposed on the third surface 301, and the first mounting structure 211 cooperates with the second mounting structure 311 to detachably connect the first housing 21 and the second housing 31.

In a specific embodiment, the glass integrated antenna 1 may include an outer layer glass 11, an inner layer glass 12, and an antenna unit 13, where the first surface 201 may be fixed on the inner surface 121 of the inner layer glass 12 by means of adhesion or the like, and the antenna unit 13 may be electrically connected to the radio frequency module 2 through a coaxial cable, or may be coupled to the radio frequency module 2, which is not limited herein.

In a specific embodiment, the first mounting structure 211 and the second mounting structure 311 are both provided with metal contacts, and the radio frequency module 2 and the OBU main control module 3 are electrically connected through the metal contacts. That is, not only the detachable mechanical connection but also the electrical connection of the first housing 21 and the second housing 31 is realized by the first mounting structure 211 in cooperation with the second mounting structure 311, and the lead-in wire harness is avoided, thereby making the structural design simpler.

Further, the specific structural form of the first mounting structure 211 and the second mounting structure 311 may be that the first mounting structure 211 is a groove, and the second mounting structure 311 is a protrusion;

alternatively, the first mounting structure 211 is a protrusion, and the second mounting structure 311 is a groove;

or, the first mounting structure 211 is a buckle, and the second mounting structure 311 is a card slot;

or, the first mounting structure 211 is a slot, and the second mounting structure 311 is a clip. It is understood that the first mounting structure and the second mounting structure may be in other forms that can achieve detachable connection, and are not limited in particular. The number of the grooves, the protrusions, the buckles and the clamping grooves can be one or more, and is not limited specifically here.

In one embodiment, the third surface 301 of the second housing 31 of the OBU main control module 3 is further provided with a tamper-proof device 312, and the tamper-proof device 312 is triggered after the first housing 21 and the second housing 31 are assembled and disassembled.

In the above embodiment, the rf module 2 may include a modulation circuit and an rf transceiver circuit, and may implement information transceiving and modulation and demodulation.

Fig. 3 shows that the embodiment of the utility model provides a functional block diagram of on-vehicle electronic tags, including integrated antenna 1 of glass, radio frequency module 2 and OBU host system 3.

The rf module 2 includes an rf transceiver circuit and a modulation circuit, and its implementation form includes but is not limited to a circuit form, and the above functions may also be implemented by a chip.

The functional modules in the OBU main control module 3 include, but are not limited to, a main control unit, a bluetooth unit, and a tamper circuit.

The radio frequency module 2 is electrically connected with the OBU main control module 3 to realize the control of the main control unit on the radio frequency module 2, the main control unit transmits useful information to the radio frequency module 2 through a communication bus, a modulation circuit of the radio frequency module 2 modulates the useful information, the information is modulated on a carrier wave, and then the information is coupled to the glass integrated antenna through a radio frequency receiving and transmitting circuit to be transmitted out.

Wherein the tamper circuit and the tamper triggering device 312 are both designed on the OBU main control module 3 and are triggered immediately after being mounted and dismounted.

The bluetooth module provides convenient service for the user changes the vehicle, and the user only needs to dismantle OBU host system 3 and get off and install on the radio frequency module 2 of new vehicle again after, carries out the bluetooth with cell-phone and OBU and connects, submits the information on the network to the issuer again, and the issuer can carry out relevant operation at the background and reactivate the OBU once more, and it is convenient to maintain, and the replacement cost is low.

The above is only the optional embodiment of the present invention, and not therefore the scope of the present invention is limited, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A vehicle-mounted electronic tag is characterized in that: including integrated antenna of glass, radio frequency module and OBU host system, radio frequency module has first casing, OBU host system has the second casing, the integrated antenna of glass with radio frequency module electricity is connected or coupling connection, radio frequency module's first casing is fixed on glass integrated antenna's glass, radio frequency module with OBU host system electricity is connected, first casing with the connection can be dismantled to the second casing.

2. The vehicle-mounted electronic tag according to claim 1, characterized in that: the first shell comprises a first surface and a second surface, the first surface is fixedly connected with glass of the glass integrated antenna, and the second surface is provided with a first mounting structure;

3. The vehicle-mounted electronic tag according to claim 2, characterized in that: the first mounting structure is a groove, and the second mounting structure is a protrusion;

4. The vehicle-mounted electronic tag according to claim 2, characterized in that: the first mounting structure with all be provided with the metal contact on the second mounting structure, radio frequency module with OBU host system passes through the metal contact realizes the electricity and connects.

5. The vehicle-mounted electronic tag according to claim 2, characterized in that: and the third surface is provided with an anti-dismounting device.

6. The vehicle-mounted electronic tag according to any one of claims 1-5, characterized in that: the radio frequency module comprises a modulation circuit and a radio frequency transceiving circuit.