CN215184519U - Disconnect-type V2X antenna structure - Google Patents

Abstract

The utility model relates to a technical field of vehicle antenna especially relates to a disconnect-type V2X antenna structure. The antenna comprises a first V2X antenna, a second V2X antenna and a radio frequency communication processor, wherein the first V2X antenna and the second V2X antenna are in communication connection with the radio frequency communication processor; the first V2X antenna is arranged in a shark fin of an automobile, the second V2X antenna is arranged in a rearview mirror of the automobile, and the radio frequency communication processor switches a radio frequency path of the main set antenna according to the strength of signals received by the first V2X antenna and the second V2X antenna. The utility model discloses a set up two antennas branch in the shark fin and the central authorities rear-view mirror of car to switch main antenna that gathers through signal strength, can alleviate the pressure of shark fin inner space on the one hand, can not influence directionality and isolation performance between the antenna, on the other hand guarantees that C-V2X antenna is at each applied scene performance, increases antenna structure signal coverage, promotes user experience, increases the market competition of product.

Description

Disconnect-type V2X antenna structure

Technical Field

The utility model relates to a technical field of vehicle antenna especially relates to a disconnect-type V2X antenna structure.

Background

With the development of communication technology, the demand of consumers for automobiles is higher and higher, and the internet of vehicles is one of the demands. In europe, the united states, japan, etc., mainly pursues the DSRC (Dedicated Short Range Communication) standard, and china pursues the C-V2X (Cellular-vehicular networking) standard. The domestic C-V2X working frequency band is 5.9-5.925 GHz.

At present, two antennas, a main collection antenna and a diversity antenna are needed to be added when an automobile supports the C-V2X function, and at present, two C-V2X antennas are integrated inside a shark fin according to a traditional design scheme, so that the mode is simple and universal, but the internal space pressure of the shark fin is increased undoubtedly, and certain influence is exerted on the directivity of the antennas and the isolation between the antennas, and meanwhile, in some application scenes, such as the scene of vehicle uphill, the problem of poor signal coverage is easy to occur, and the user experience is influenced.

Therefore, the arrangement of the C-V2X antenna is becoming more and more important to enhance the practical experience of the user while ensuring the performance of the antenna.

Disclosure of Invention

The utility model discloses a solve present double antenna structure and set up in the shark fin, cause the relatively poor technical problem of antenna performance easily, provide a disconnect-type V2X antenna structure.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a split V2X antenna structure, comprising a first V2X antenna, a second V2X antenna and a radio frequency communication processor, the first V2X antenna, the second V2X antenna being communicatively connected to the radio frequency communication processor; the first V2X antenna is arranged in a shark fin of an automobile, the second V2X antenna is arranged in a rearview mirror of the automobile, and the radio frequency communication processor switches a radio frequency path of the main set antenna according to the strength of signals received by the first V2X antenna and the second V2X antenna.

Furthermore, the rearview mirror is a central rearview mirror in front of the automobile.

Furthermore, the first V2X antenna and the second V2X antenna are in control connection with the radio frequency communication processor through a switch assembly.

Further, the switch assembly is a double-pole double-throw switch.

Further, the antenna size of the first V2X antenna and the second V2X antenna is 20 × 17 mm.

Further, the separated V2X antenna structure further includes an antenna box, and the second V2X antenna is disposed in the antenna box and disposed in a rearview mirror of an automobile through the antenna box.

Further, the size of the antenna box is 25 × 20 mm.

Further, the radio frequency communication processor sets the radio frequency path of the main set antenna on the first V2X antenna by default.

Furthermore, the important coverage area of the first V2X antenna is the area behind the vehicle, and the important coverage area of the first V2X antenna is the area in front of the vehicle.

Further, the first V2X antenna and the second V2X antenna are C-V2X antennas supporting the cellular Internet of vehicles technology standard.

The utility model discloses a set up two antennas branch in the shark fin and the central authorities rear-view mirror of car to switch main antenna that gathers through signal strength, can alleviate the pressure of shark fin inner space on the one hand, can not influence directionality and isolation performance between the antenna, on the other hand guarantees that C-V2X antenna is at each applied scene performance, increases antenna structure signal coverage, promotes user experience, increases the market competition of product.

Drawings

Fig. 1 is a layout structure diagram of an antenna in an automobile in a separated V2X antenna structure according to an embodiment of the present invention.

Fig. 2 is a block diagram illustrating structural connections of components of the separated V2X antenna structure according to an embodiment of the present invention.

Wherein:

the first V2X antenna is 10, the second V2X antenna is 20, the rf communication processor is 30, and the switch assembly is 40.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

Fig. 1 shows a schematic structural diagram of a split V2X antenna structure in this embodiment.

As shown in fig. 1, the present embodiment provides a separated V2X antenna structure, which is mainly used to relieve the pressure of the current antenna layout on the internal space of the shark fin, and improve the antenna coverage area under each application scenario, so as to achieve better antenna use experience.

Specifically, referring to fig. 1-2, the separated V2X antenna structure of the present embodiment includes a first V2X antenna 10, a second V2X antenna 20, and a radio frequency communication processor 30, where the first V2X antenna 10 and the second V2X antenna 20 are in communication connection with the radio frequency communication processor 30, specifically, the communication connection means that two V2X antennas can perform signal transmission with the radio frequency communication processor 30, that is, the two V2X antennas can receive an instruction from the radio frequency communication processor 30, perform a signal receiving and sending operation, and transmit the received signal to the radio frequency communication processor 30 for processing.

In the arrangement position of the antenna, the first V2X antenna 10 is arranged in a shark fin of an automobile, and the second V2X antenna 20 is arranged in a rearview mirror of the automobile, so that the two antennas are arranged at different positions of the automobile, and the two positions are respectively deviated to the front part and the rear part of the automobile, the problems of overlarge internal pressure of the shark fin and insufficient isolation between the antennas in the common antenna arrangement scheme can be solved, meanwhile, the signal coverage range of the automobile antenna is enlarged, the problem of poor antenna receiving signals in some application scenes is solved, for example, when the automobile goes up a slope, a vehicle network vehicle and a front vehicle signal are easy to have poor receiving signals, and through the antenna arrangement, the front signal can be specially received through the antenna arranged in the front, so that the problem is solved.

In addition, in terms of antenna control, the rf communication processor 30 in this embodiment switches the rf path of the main set antenna according to the strength of the signals received by the first V2X antenna 10 and the second V2X antenna 20, and finally determines to use the corresponding antenna as the main set antenna to perform the receiving and transmitting functions. Correspondingly, the other antenna is used as a diversity antenna and only completes the receiving function. Specifically, by default, the first V2X antenna 10 in the shark fin acts as the main set antenna while supporting both transmission and reception, while the second V2X antenna 20 in the rear view mirror acts as a diversity antenna, supporting only reception. In terms of control, a Double Pole Double throw switch, i.e., dpdt (Double Pole Double throw) switch, is built in the rf communication processor 30 for antenna switching, when a chip in the rf communication processor 30 detects that a diversity antenna, i.e., the second V2X antenna 20 receives a strong signal, the rf communication processor 30 switches the main rf-collecting path to the V2X antenna in the rearview mirror, i.e., the second V2X antenna 20 is the main antenna, and the first V2X antenna 10 is the diversity antenna.

Referring to fig. 1-2, some embodiments of the present invention are provided below.

In some embodiments, the rear view mirror is a central rear view mirror in front of the vehicle, and preferably, the split V2X antenna structure further comprises an antenna box, and the second V2X antenna 20 is disposed in the antenna box and disposed in the rear view mirror of the vehicle through the antenna box. The antenna box is provided with a communication hole, and the second V2X antenna 20 passes through the communication hole through a conducting wire and is finally in communication connection with the radio frequency communication processor 30. More preferably, in the present embodiment, the size of the antenna box is 25 × 20 mm. Of course, the size of the antenna box is only used as a reference, and the specific size information can be customized and arranged according to the structural requirements of different vehicles.

In some embodiments, the first V2X antenna 10 and the second V2X antenna 20 are controllably connected to the rf communication processor 30 through a switch assembly 40, the switch assembly 40 is a double-pole double-throw switch, and the rf communication processor 30 switches the main rf path through the switch assembly according to the strength of the signal received by the antennas.

In terms of the size of the components of the antenna structure, the antenna size of the first V2X antenna 10 and the second V2X antenna 20 is preferably 20 × 17mm, and in this embodiment, the size of the shark fin is preferably 70 × 60 mm.

In the specific signal layout of the antennas, the radio frequency communication processor 30 sets the radio frequency path of the main set antenna on the first V2X antenna 10 under the default condition, the important coverage area of the first V2X antenna 10 is the area behind the vehicle, the important coverage area of the first V2X antenna 10 is the area in front of the vehicle, and thus the signal coverage direction of the antenna structure can be ensured to be sufficiently large. In addition, the first V2X antenna 10 and the second V2X antenna 20 are C-V2X antennas (Cellular-vehicular networking technology) supporting the Cellular vehicular networking technology standard.

The separated V2X antenna structure has the advantages that the two antennas are respectively arranged in the shark fin and the central rearview mirror of the automobile, and the main set antenna is switched according to the signal strength, so that the pressure in the space in the shark fin can be relieved, the directivity and isolation performance among the antennas can not be influenced, the performance of the C-V2X antenna in each application scene is ensured, the signal coverage range of the antenna structure is increased, the user experience is improved, and the market competitiveness of the product is increased.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A split V2X antenna structure, comprising a first V2X antenna (10), a second V2X antenna (20) and a radio frequency communication processor (30), wherein the first V2X antenna (10), the second V2X antenna (20) and the radio frequency communication processor (30) are connected in communication; the first V2X antenna (10) is arranged in a shark fin of an automobile, the second V2X antenna (20) is arranged in a rearview mirror of the automobile, and the radio frequency communication processor (30) switches a radio frequency path of the main set antenna according to the strength of signals received by the first V2X antenna (10) and the second V2X antenna (20).

2. The split V2X antenna structure of claim 1, wherein the rear view mirror is a central rear view mirror in front of an automobile.

3. The split V2X antenna structure of claim 1, wherein the first V2X antenna (10) and the second V2X antenna (20) are in control connection with the rf communication processor (30) through a switch assembly (40).

4. The split V2X antenna structure of claim 3, wherein the switch assembly (40) is a double pole double throw switch.

5. The discrete V2X antenna structure according to any one of claims 1-4, wherein the first V2X antenna (10) and the second V2X antenna (20) have an antenna size of 20 x 17 mm.

6. A split V2X antenna structure according to any one of claims 1-4, characterized in that the split V2X antenna structure further includes an antenna box in which the second V2X antenna (20) is arranged and by means of which it is arranged in the rear-view mirror of the car.

7. The discrete V2X antenna structure of claim 6, wherein the antenna box is 25 x 20mm in size.

8. The split V2X antenna structure of claim 1, wherein the radio frequency communications processor (30) sets the radio frequency path of the main set antenna by default on the first V2X antenna (10).

9. The split V2X antenna structure of claim 1, wherein the area of accent coverage of the first V2X antenna (10) is the area behind the vehicle and the area of accent coverage of the first V2X antenna (10) is the area ahead of the vehicle.

10. The split V2X antenna structure of claim 1, wherein the first V2X antenna (10), second V2X antenna (20) are C-V2X antennas supporting cellular Internet of vehicles technology standards.

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