CN212569871U - Vehicle-mounted electronic control unit integrating ETC function - Google Patents

Abstract

The utility model discloses an on-vehicle electronic control unit of integrated ETC function, including ETC circuit module and antenna unit, still include the PCB board, the antenna unit includes antenna paster, ground plane and dielectric layer, the antenna paster is located the PCB board openly, the back of PCB board is equipped with radio frequency processing circuit, digital processing circuit, interface circuit and connector, the via hole has been seted up on the PCB board, the antenna paster is connected through the via hole with radio frequency processing circuit, ground plane and dielectric layer are a part of PCB board, the dielectric layer is located between ground plane and the antenna paster; the utility model discloses can make the on-vehicle unit adaptation of ETC in the front-loading, and can make other equipment on ETC on-vehicle unit and the car fuse the interdynamic.

Description

Vehicle-mounted electronic control unit integrating ETC function

Technical Field

The utility model relates to an intelligent transportation field, in particular to on-vehicle electronic control unit of integrated ETC function.

Background

ETC (electronic Toll collection) non-stop Toll collection system is an advanced road and bridge Toll collection mode in the world at present, and achieves the purpose that vehicles can pay road and bridge fees without parking through a road and bridge Toll station by performing background settlement processing with banks through microwave special short-range communication between a vehicle-mounted electronic unit mounted on the vehicles and a microwave antenna on an ETC lane of the Toll station by utilizing a computer networking technology.

In the prior art, an independent ETC vehicle-mounted unit and a roadside unit are mounted on a vehicle for communication, so as to realize ETC transaction; the independent ETC vehicle-mounted unit comprises an LED lamp, a loudspeaker, an anti-disassembly mechanical device, Bluetooth, a battery, a display screen and the like, has a complex structure and isolated functions, cannot be fused and interacted with other equipment on a vehicle, so that ETC fee deduction information is not visual, and a user is difficult to upgrade ETC equipment software; and the independent ETC vehicle-mounted unit can only be adapted to rear loading, namely, the unit is installed after the vehicle leaves a factory and cannot be adapted to front loading.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the unable adaptation of present ETC on-vehicle unit and just can't fuse interactive problem with other equipment on the car in the front-loading. The utility model provides an on-vehicle electronic control unit of integrated ETC function can make ETC on-vehicle unit adaptation in the front-end dress, and can make ETC on-vehicle unit and other equipment on the car fuse the interdynamic.

In order to solve the technical problem, the utility model discloses an embodiment discloses an on-vehicle electronic control unit of integrated ETC function, including ETC circuit module and antenna element, still include the PCB board, antenna element includes the antenna paster, ground plane and dielectric layer, the PCB board is openly located to the antenna paster, the back of PCB board is equipped with radio frequency processing circuit, digital processing circuit, interface circuit and connector, the via hole has been seted up on the PCB board, the antenna paster is connected through the via hole with radio frequency processing circuit, the ground plane is partly of PCB board with the dielectric layer, the dielectric layer is located between ground plane and the antenna paster.

By adopting the technical scheme, the radio frequency processing circuit, the digital processing circuit and the antenna patch are respectively arranged on two sides of the PCB, so that the electromagnetic radiation control and the electromagnetic radiation interference are greatly improved, the electromagnetic compatibility design is more convenient, and the mutual interference between the radio frequency processing circuit, the digital processing circuit and other functional circuits is reduced; in addition, the problem of electromagnetic radiation interference caused by long-distance signal transmission can be solved by arranging the through hole on the PCB and connecting the antenna patch with the radio frequency processing circuit through the through hole; in addition, through setting up interface circuit and connector, make ETC on-vehicle unit link to each other with on-vehicle electronic equipment through the connector, can make ETC on-vehicle unit adaptation in the front-loading, and can make ETC on-vehicle unit and other equipment on the car merge the interdynamic.

Optionally, the radio frequency processing circuitry, the digital processing circuitry, the interface circuitry and the connector are electrically connected.

Optionally, the radio frequency processing circuit, the digital processing circuit and the interface circuit are externally provided with a shielding case.

Optionally, the side of the antenna patch away from the PCB board is provided with an antenna guide plate.

By adopting the technical scheme, the directivity of the antenna unit can be determined by arranging the antenna guide plate, so that the antenna unit can better receive signals.

Optionally, the antenna patch or the PCB board is provided with a mounting for fixing the antenna guide plate.

Optionally, the mount is a plastic shell or foam.

Optionally, the connector is connected with a CAN bus or a vehicle-mounted ethernet line, and the other end of the CAN bus or the vehicle-mounted ethernet line is connected with the vehicle-mounted electronic device.

By adopting the technical scheme, the ETC information CAN be displayed on the display screen in the vehicle through the CAN bus or the vehicle-mounted Ethernet cable, so that the ETC display screen is convenient for users to use.

Optionally, the onboard electronic device is a TBOX.

Optionally, the in-vehicle electronic device is an in-vehicle infotainment system.

Optionally, the onboard electronic device is a meter.

Drawings

Figure 1 shows a perspective view of an embodiment of the invention;

FIG. 2 shows a top view of FIG. 1;

FIG. 3 shows a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 shows a schematic structural diagram of an embodiment of the present invention;

reference numerals:

1. an antenna unit;

11. a ground plane;

12. an antenna patch;

13. an antenna guide plate;

14. a dielectric layer;

2. a radio frequency processing circuit;

3. a via hole;

4. a digital processing circuit;

5. an interface circuit;

6. a connector;

7. a road side unit;

8. a vehicle-mounted electronic device;

9. a mounting member;

10, a PCB board;

20. a feed-in microstrip line;

21. a shield can.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Referring to fig. 1, fig. 2 and fig. 3, the utility model provides an on-vehicle electronic control unit of integrated ETC function, including ETC circuit module, antenna unit 1 and PCB board 10, ETC circuit module is all circuit structure in the middle of handling the ETC transaction process, and antenna unit 1 is the ETC antenna, and it is used for receiving and dispatching high frequency radio signal, and it can communicate with the trackside unit 7 of installing at the charge road junction, realizes the ETC transaction. The antenna unit 1 comprises an antenna patch 12, a ground layer 11 and a dielectric layer 14, wherein the antenna patch 12 is arranged on the front surface of the PCB 10, and the back surface of the PCB 10 is provided with a radio frequency processing circuit 2, a digital processing circuit 4, an interface circuit 5 and a connector 6. The front surface of the PCB board 10 is a surface facing the roadside unit 7, and the back surface of the PCB board 10 is a surface facing the inside of the vehicle. The PCB board 10 is provided with a via hole 3, and the via hole 3 is a metallized hole and can conduct electricity. The antenna patch 12 is connected with the radio frequency processing circuit 2 through the via hole 3. The ground layer 11 and the dielectric layer 14 are part of the PCB 10, and the dielectric layer 14 is located between the ground layer 11 and the antenna patch 12.

By adopting the technical scheme, the radio frequency processing circuit 2, the digital processing circuit 4 and the antenna patch 12 are respectively arranged at two sides of the PCB 10, which can bring great improvement to electromagnetic radiation control and electromagnetic radiation interference, facilitate the electromagnetic compatibility design and reduce the mutual interference with other functional circuits; moreover, the problem of electromagnetic radiation interference caused by long-distance signal transmission can be avoided by arranging the through hole 3 on the PCB 10 and connecting the antenna patch 12 with the radio frequency processing circuit 2 through the through hole 3; in addition, by arranging the interface circuit 5 and the connector 6, the ETC vehicle-mounted unit is connected with the vehicle-mounted electronic equipment 8 through the connector 6, the ETC vehicle-mounted unit can be adapted to front loading, and the ETC vehicle-mounted unit can be fused with other equipment on the vehicle for interaction.

Specifically, the antenna patch 12 is provided with a feed-in microstrip line 20, and the antenna patch 12 is connected to the via hole 3 through the feed-in microstrip line 20.

Specifically, the radio frequency processing circuit 2, the digital processing circuit 4, the interface circuit 5 and the connector 6 are electrically connected. The radio frequency processing circuit 2 is used for converting the high-frequency wireless signal received by the antenna unit 1 into a digital signal. The digital processing circuit 4 is used for receiving the digital signal sent by the radio frequency processing circuit 2, identifying and decoding the digital signal and processing the digital signal into communication interaction information.

Specifically, the shielding case 21 is disposed outside the rf processing circuit 2, the digital processing circuit 4 and the interface circuit 5, and the shielding case 21 can prevent the rf processing circuit 2, the digital processing circuit 4 and the interface circuit 5 from generating electromagnetic radiation interference on the antenna unit 1. The side of the antenna patch 12 remote from the PCB board 10 is provided with an antenna guide plate 13. By providing the antenna guide plate 13, the directivity of the antenna unit 1 can be determined, and thus the antenna unit 1 can receive a signal better.

Specifically, the antenna patch 12 or the PCB 10 is provided with a mounting member 9, and the mounting member 9 is used for fixing the antenna guide plate 13. The mounting 9 may be a plastic shell or foam.

Specifically, the connector 6 is connected with a CAN bus or a vehicle-mounted ethernet line, the other end of the CAN bus or the vehicle-mounted ethernet line is connected with a vehicle-mounted electronic device 8, and the vehicle-mounted electronic device 8 CAN be a TBOX, a vehicle-mounted infotainment system or an instrument. By adopting the technical scheme, the ETC information CAN be displayed on a display screen in the vehicle through the CAN bus or the vehicle-mounted Ethernet cable, so that the ETC information is convenient for users to use.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides an on-vehicle electronic control unit of integrated ETC function, includes ETC circuit module and antenna element, its characterized in that still includes the PCB board, antenna element includes antenna paster, ground plane and dielectric layer, the antenna paster is located the PCB board is positive, the back of PCB board is equipped with radio frequency processing circuit, digital processing circuit, interface circuit and connector, the via hole has been seted up on the PCB board, the antenna paster with radio frequency processing circuit passes through the via hole is connected, the ground plane with the dielectric layer does a part of PCB board, the dielectric layer is located the ground plane with between the antenna paster.

2. The on-board electronic control unit integrating ETC function according to claim 1, wherein the radio frequency processing circuit, the digital processing circuit, the interface circuit and the connector are electrically connected.

3. The on-board electronic control unit integrating ETC function according to claim 1, wherein a shield case is provided outside the radio frequency processing circuit, the digital processing circuit, and the interface circuit.

4. The on-board electronic control unit integrating ETC function according to claim 1, wherein an antenna guide plate is provided on a side of the antenna patch remote from the PCB board.

5. The ETC function integrated vehicle electronic control unit of claim 4, wherein a mounting member is provided on the antenna patch or the PCB for fixing the antenna guide plate.

6. The ETC function integrated in-vehicle electronic control unit of claim 5, wherein the mount is a plastic shell or foam.

7. The ETC function integrated vehicle-mounted electronic control unit according to any one of claims 1-6, wherein a CAN bus or a vehicle-mounted Ethernet line is connected to the connector, and a vehicle-mounted electronic device is connected to the other end of the CAN bus or the vehicle-mounted Ethernet line.

8. The ETC-function integrated in-vehicle electronic control unit according to claim 7, wherein the in-vehicle electronic device is TBOX.

9. The ETC-function integrated in-vehicle electronic control unit according to claim 7, wherein the in-vehicle electronic device is an in-vehicle infotainment system.

10. The on-vehicle electronic control unit integrating the ETC function according to claim 7, wherein the on-vehicle electronic device is a meter.

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