CN214280201U

CN214280201U - Vehicle-mounted electronic tag

Info

Publication number: CN214280201U
Application number: CN202120226382.5U
Authority: CN
Inventors: 张磊; 封二佳; 杨帆; 武宏伟; 赵昱阳; 王庆飞; 朱胜超; 张秀昌
Original assignee: Beijing Wanji Technology Co Ltd
Current assignee: Beijing Wanji Technology Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-24
Anticipated expiration: 2031-01-27

Abstract

The utility model provides a vehicle-mounted electronic label. The vehicle-mounted electronic tag comprises a glass antenna and an OBU main control device, wherein the glass antenna consists of a glass medium, a metal covering layer arranged on the glass medium and an epitaxial feed structure; the OBU main control device is provided with the joint end for fixed epitaxy feed structure, thereby realize the effective transmission of energy. The vehicle-mounted electronic tag is used for solving the problem that in the prior art, the vehicle-mounted electronic tag cannot be matched with window glass in a targeted mode, and therefore communication efficiency is reduced.

Description

Vehicle-mounted electronic tag

Technical Field

The utility model relates to an intelligent transportation technical field especially relates to an on-vehicle electronic tags.

Background

At present, an On Board Unit (OBU) is attached to a front windshield of a vehicle, and an antenna in the On board Unit can communicate with a Road Side Unit (RSU) above an ETC lane of a toll station to realize functions of vehicle identification, payment and data statistics. However, since the vehicle-mounted electronic tag is installed after the vehicle and the window glass are shipped from factory, the vehicle-mounted electronic tag cannot be specifically fitted with the window glass, and the communication efficiency of the vehicle-mounted electronic tag is reduced.

SUMMERY OF THE UTILITY MODEL

The application provides a vehicle-mounted electronic tag for solve among the prior art problem vehicle-mounted electronic tag can not have corresponding ground and window glass adaptation, lead to the problem that communication efficiency reduces.

The vehicle-mounted electronic tag comprises a glass antenna and an OBU main control device, wherein the glass antenna consists of a glass medium, a metal covering layer arranged on the glass medium and an epitaxial feed structure; OBU main control unit is provided with the joint end for it is fixed epitaxial feed structure to realize the effective transmission of energy.

Optionally, one end of the epitaxial feed structure is fixed to the metal covering layer, and the other end of the epitaxial feed structure extends out of the edge of the glass antenna and is fixedly connected with the clamping end.

Optionally, the metal covering layer includes a radiation layer and a metal floor layer, the epitaxial feed structure includes a first feed line and a second feed line, the first feed line is connected to the radiation layer, and the second feed line is connected to the metal floor layer.

Optionally, the radiation layer and the metal floor layer are laid on the same surface of the glass medium.

Optionally, the glass medium is laminated glass, and the radiation layer and the metal floor layer are laid on different surfaces of the laminated glass.

Above-mentioned technical scheme, promptly the utility model provides a pair of vehicle-mounted electronic label. The vehicle-mounted electronic tag comprises a glass antenna and an OBU main control device, wherein the glass antenna consists of a glass medium, a metal covering layer arranged on the glass medium and an epitaxial feed structure; OBU main control unit is provided with the joint end for it is fixed epitaxial feed structure to realize the effective transmission of energy. The vehicle-mounted electronic tag is used for solving the problem that in the prior art, the vehicle-mounted electronic tag cannot be matched with window glass in a targeted mode, and therefore communication efficiency is reduced.

Drawings

Fig. 1 is an overall schematic diagram of the vehicle-mounted electronic tag of the present invention;

FIG. 2 is a schematic side sectional view of the glass dielectric microstrip antenna of the present invention;

FIG. 3 is a schematic view of a metal covering layer of the glass dielectric microstrip antenna of the present invention;

fig. 4 is a schematic view of the glass dielectric dipole antenna according to the present invention.

Description of reference numerals:

10. a glass antenna; 11. a glass medium; 12. a metal cap layer; 13. an epitaxial feed structure; 14. a first feeder line; 15. a radiation layer; 16. outer layer glass; 17. inner layer glass; 18. a metal floor layer; 19. a second feed line; 20. an OBU master control device; 21. an OBU main body unit; 22. and a clamping end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment provides a vehicle-mounted electronic tag, please refer to fig. 1, and fig. 1 is an overall schematic diagram of the vehicle-mounted electronic tag of the present invention.

The vehicle-mounted electronic tag provided by the embodiment comprises a glass antenna 10 and an OBU main control device 20. The glass antenna 10 comprises a glass medium 11, a metal covering layer 12 arranged on the glass medium 11 and an epitaxial feed structure 13, and the OBU main control device 20 is provided with a clamping end 22 for fixing the epitaxial feed structure 13, so that the effective transfer of energy is realized.

Specifically, one end of the epitaxial feed structure 13 is fixed to the metal covering layer 12, and the other end extends out of the edge of the glass antenna 10 and is fixedly connected to the clamping end 22. The metal covering layer 12 comprises a radiation layer 15 and a metal floor layer 18, the epitaxial feed structure 13 comprises a first feed line 14 and a second feed line 19, the first feed line 14 is connected with the radiation layer 15, and the second feed line 19 is connected with the metal floor layer 18.

Predictably, the metal covering layer 12 can be arranged in the interlayer of the glass medium 11 and tightly attached to the outer glass 16, so that the thickness of the glass through which wireless signals pass is reduced, the antenna loss is reduced, the antenna performance is improved, the antenna coverage is improved, and the purpose of reducing power consumption is achieved.

Optionally, the OBU main control device 20 may be installed at any position in the middle of the glass medium 11, or at any position in the left and right sides, or in the interior of the vehicle cab, which is not specifically limited herein, and the present disclosure embodies a manner in which the OBU main control device 20 is placed in the interior of the vehicle cab;

alternatively, the glass antenna 10 may be any one of a glass dielectric microstrip antenna, a glass dielectric dipole antenna, and a glass dielectric monopole antenna.

One practical scenario is that, as shown in fig. 2, a schematic side sectional view of a glass dielectric microstrip antenna, a glass antenna 10 is a glass dielectric microstrip antenna, and a glass dielectric is a laminated glass structure, and includes an outer layer glass 16 and an inner layer glass 17; the metal covering layer 12 comprises a radiation layer 15 printed on the inner surface of the outer layer glass 16 and a metal floor layer 18 printed on the inner surface of the inner layer glass 17;

specifically, as shown in the schematic diagram of the metal covering layer of the glass dielectric microstrip antenna in fig. 3, the epitaxial feed structure 13 includes a feed metal strip connected to the radiation layer 15 and a floor metal strip connected to the metal floor layer 12, which together form an air microstrip transmission line structure, and the area of the floor metal strip is larger than that of the feed metal strip; the feeding metal strip, i.e. the first feeding line 14, and the floor metal strip, i.e. the second feeding line 19.

As shown in fig. 4, a partial schematic view of a glass dielectric dipole antenna is shown, in which the glass antenna 10 is a glass dielectric dipole antenna, the metal covering layer 12 is two radiation branches printed on the same surface of the glass dielectric 11, and the epitaxial feed structure 13 is a parallel transmission line in the form of an FPC flexible circuit board, and is connected to the two radiation branches; the two radiation branches are shown as radiation layer 15 and metal floor layer 18, respectively, and the FPC flexible circuit board includes a first feeder line 14 and a second feeder line 19.

In another practical scenario, the glass antenna 10 is a glass dielectric monopole antenna; the metal covering layer 12 is a radiation branch and a ground plane printed on the same surface of the glass medium 11, and the epitaxial feed structure 13 is a coplanar waveguide transmission line in the form of an FPC flexible circuit board, and is connected with the radiation branch and the ground plane. The radiating stub shown is a radiating layer 15, the ground plane is a metal floor layer 18, and the FPC flex circuit includes a first feeder line 14 and a second feeder line 19.

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. An in-vehicle electronic tag, comprising: glass antenna and OBU master control device, wherein:

the glass antenna consists of a glass medium, a metal covering layer arranged on the glass medium and an epitaxial feed structure;

OBU main control unit is provided with the joint end for it is fixed epitaxial feed structure to realize the effective transmission of energy.

2. The vehicle-mounted electronic tag according to claim 1, wherein one end of the extension feed structure is fixed on the metal covering layer, and the other end of the extension feed structure extends out of the edge of the glass antenna and is fixedly connected with a clamping end of the OBU main control device.

3. The in-vehicle electronic tag according to claim 2, wherein said metal cover layer comprises a radiation layer and a metal floor layer, said epitaxial feed structure comprises a first feed line and a second feed line, said first feed line is connected with said radiation layer, and said second feed line is connected with said metal floor layer.

4. The vehicle-mounted electronic tag according to claim 3, wherein the radiation layer and the metal floor layer are laid on the same surface of the glass medium.

5. The vehicle-mounted electronic tag according to claim 3, wherein the glass medium is laminated glass, and the radiation layer and the metal floor layer are laid on different surfaces of the laminated glass.