WO2017080160A1 - 一种车载天线系统及汽车 - Google Patents

一种车载天线系统及汽车 Download PDF

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Publication number
WO2017080160A1
WO2017080160A1 PCT/CN2016/082650 CN2016082650W WO2017080160A1 WO 2017080160 A1 WO2017080160 A1 WO 2017080160A1 CN 2016082650 W CN2016082650 W CN 2016082650W WO 2017080160 A1 WO2017080160 A1 WO 2017080160A1
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WO
WIPO (PCT)
Prior art keywords
antenna
vehicle
modules
module
lte
Prior art date
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PCT/CN2016/082650
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English (en)
French (fr)
Inventor
宋太威
吴超
王�忠
Original Assignee
乐视控股（北京）有限公司
乐卡汽车智能科技（北京）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 乐视控股（北京）有限公司, 乐卡汽车智能科技（北京）有限公司 filed Critical 乐视控股（北京）有限公司
Priority to EP16739006.1A priority Critical patent/EP3190659A1/en
Publication of WO2017080160A1 publication Critical patent/WO2017080160A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an in-vehicle antenna system and an automobile.
  • Vehicles can achieve these functions by receiving wireless signals through the vehicle antenna.
  • vehicle functions increase, more and more antennas are needed, such as broadcasting, global positioning, mobile TV, mobile communication, etc., which are common in the prior art.
  • antennas such as broadcasting, global positioning, mobile TV, mobile communication, etc., which are common in the prior art.
  • With a single antenna design it can be seen that the vehicle cannot receive various types of signals at the same time, and various Internet-related functions such as in-vehicle video viewing and high-speed network experience cannot be realized.
  • the embodiment of the present application provides an in-vehicle antenna system and an automobile, which are used for realizing high-speed communication of a vehicle-mounted antenna, and are easy to install and have good stability.
  • the central control unit includes: a central processing unit and a plurality of LTE (Long Term Evolution) modules;
  • LTE Long Term Evolution
  • Each of the LTE modules in the central control unit is connected to at least one of the antenna modules;
  • the plurality of LTE modules are respectively connected to the central processor.
  • an embodiment of the present application further provides an automobile, including the above-described vehicle antenna system.
  • the vehicle-mounted antenna system provided by the embodiment of the present invention realizes high-speed communication function of the vehicle-mounted antenna through multiple antenna modules and multiple LTE modules of the central control unit, and the LTE module is disposed in the central control unit, thereby reducing the length of the wire harness. It can reduce signal attenuation, improve transmission efficiency and reduce power consumption.
  • FIG. 1 is a schematic structural diagram of an in-vehicle antenna system according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an antenna module according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of an antenna module according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an antenna module according to an embodiment of the present application.
  • 5a to 5c are schematic structural diagrams of an antenna module according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a mounting position of an antenna module according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a mounting position of an antenna module according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a mounting position of an antenna module according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a mounting position of an antenna module according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an in-vehicle antenna system according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an in-vehicle antenna system according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an in-vehicle antenna system according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of an in-vehicle antenna system according to an embodiment of the present application.
  • FM Frequency Basic functions such as Modulation, FM, Global Positioning System, WiFi/BT (WIreless-Fidelity/Bluetooth), CMMB (China Mobile Multimedia Broadcasting), Antenna Shark fin antennas, spiral antennas, and column antennas are commonly used.
  • FM Frequency Basic functions such as Modulation, FM, Global Positioning System, WiFi/BT (WIreless-Fidelity/Bluetooth), CMMB (China Mobile Multimedia Broadcasting), Antenna Shark fin antennas, spiral antennas, and column antennas are commonly used.
  • FIG. 1 shows a schematic structure of an in-vehicle antenna system.
  • the in-vehicle antenna system includes:
  • the central control unit 102 and the plurality of antenna modules 101 includes a CPU (Central Processing Unit) 1022, a plurality of LTE modules 1021, and each of the LTE modules 1021 and at least one antenna module of the central control unit 102. 101 is connected, and a plurality of LTE modules 1021 are respectively connected to the CPU 1022.
  • CPU Central Processing Unit
  • the LTE module 1021 can perform communication of 2G (second generation mobile communication), 3G (third generation mobile communication), 4G (fourth generation mobile communication), and each LTE module 1021 can receive and receive through its corresponding antenna module 101.
  • the signal is transmitted for communication with the external network.
  • a plurality of LTE modules 1021 are a primary antenna and a secondary antenna.
  • the LTE module 1021 can also be connected to one antenna module 101. The more the number of connected antenna modules 101, the better the communication performance of the LTE module 1021.
  • the network transmission speed of the vehicle antenna system can be faster than the network transmission speed of the antenna system in the 2G mode and the 3G mode.
  • multiple LTE modules 1021 and multiple antenna modules 101 due to multi-carrier aggregation, multiple LTE modules 1021 and multiple antenna modules 101 in the vehicle-mounted antenna system can provide high-speed network transmission for the vehicle, thereby implementing the vehicle In-car video calling and watching HD video.
  • the embodiment of the present application improves the network transmission speed.
  • the manufacturing process of the antenna module 101 is different.
  • the manufacturing process of the antenna module 101 in the embodiment of the present application includes at least the following:
  • the antenna module 101 is printed on a first PCB (Printed Circuit Board), and the metal layer of the first PCB is etched by etching to obtain the antenna module 101. It is also possible to print the pattern of the antenna module 101 on the first PCB.
  • the antenna module 101 The RF (Radio Frequency) transmission line is connected to the RF interface, and the RF interface is connected to the LTE module 1021.
  • the LTE module 1021 performs signal transmission and reception through the antenna module 101.
  • the antenna module 101 has a simple overall structure and is easy to install.
  • the antenna module 101 is formed by etching an FPC (Flexible Printed Circuit).
  • the labyrinth type antenna module 101 is fabricated by exposing an FPC masked using a mask having an antenna pattern and then etching the metal layer on the exposed FPC.
  • the antenna module 101 manufactured by the FPC process has a small structure and is easy to install.
  • the FPC can be pasted on the center console housing by a glue, such as the outer casing of the center console, which can be a non-metallic part of the center console housing.
  • the outer side may also be the inner side of the non-metallic portion of the center console, and the FPC may be attached to the second PCB.
  • the antenna module 101 is connected to the RF interface through an RF cable, and the RF interface is connected to the LTE module 1021.
  • the antenna module 101 has the advantages of high wiring density, light weight, and easy bending.
  • the antenna module 101 is formed on the housing of the structural member by laser engraving by LDS (Laser Direct Structuring).
  • LDS Laser Direct Structuring
  • the metal powder is laser-engraved to the casing of any structural member using the LDS process, such as the outer casing of the center console, which may be the outer side of the non-metallic portion of the outer casing of the center console, or the inner side of the non-metallic portion of the outer casing.
  • the antenna module 101 can arbitrarily design an antenna pattern, and the laser engraving is on the shell of the structural member of any shape, which is not limited by the structure of the product, and has greater flexibility, and can not only avoid metal interference with the LTE module 1021, but also The volume of the LTE module 1021 can be reduced.
  • the antenna module 101 is connected to the RF interface through an RF cable, and the RF interface is connected to the LTE module 1021.
  • the embodiment of the present application further provides a schematic structural diagram of several antenna modules 101, as shown in FIG. 5a to FIG. 5c.
  • Fig. 5a shows a cross-sectional view of an antenna module 101, a cross-sectional view of the antenna module 101.
  • the graphic structure of the antenna module 101, the graphic structure of the antenna module 101 is printed on the FPC.
  • 5b and 5c respectively show antenna patterns of two antenna modules 101, which are a toroidal structure and a return structure, respectively.
  • the two patterns can be designed.
  • the antenna module 101 is etched according to the pattern on the FPC, or the two patterns are carved by the LDS laser using metal powder.
  • the graphics of the antenna module 101 can be freely designed in practical applications.
  • the antenna module 101 can be disposed in the center console.
  • the graphic of the antenna module 101 can be laser engraved on the outer casing of the center console by using the LDS process, and the laser can be laser-etched in the center console.
  • the outer side of the outer casing can also be laser-engraved inside the outer casing of the center console. If the outer casing of the center console is assembled with the central control main screen, the outer casing is separately mounted, and the antenna module 101 is placed on the four sides of the outer casing facing the passenger side.
  • the structure of the mounting position of the antenna module 101 is the position at which the antenna module 101 can be mounted, that is, four of the four sides of the outer casing of the center console.
  • the location of the corners Four antenna modules 101 (including a main antenna and a secondary antenna) are placed at eight positions in four corners, and the antenna modules 101 at the four corners are the farthest distance.
  • the connection between the main antenna and the auxiliary antenna is "one horizontal and one vertical", which is advantageous for polarization isolation. It can achieve good isolation between the two antennas and ensure communication performance.
  • the structure of the mounting position of the antenna module 101 is the position at which the antenna module 101 can be mounted, that is, on the four sides of the outer casing of the center console, in each At the 1/3 position of the side, a total of 8 positions are placed with 4 antenna modules 101 (including the main antenna and the auxiliary antenna), so that the distance between each antenna can be the farthest interval, thus ensuring each The isolation between the antennas ensures communication performance.
  • the structure of the mounting position of the antenna module 101 is the position at which the antenna module 101 can be mounted.
  • the shape of the center console is elliptical, and eight positions are equally spaced on the side of the outer casing of the center console, and four antenna modules 101 (including the main antenna and the auxiliary antenna) are placed at the eight positions, so that The distance between each antenna can be the farthest interval, thus ensuring the isolation between each antenna and ensuring communication performance. If the shape of the center console is circular, install it according to the above method.
  • the embodiment of the present application can set the antenna module 101 on the center console of the vehicle without being installed outside the vehicle, thereby improving the stability of the vehicle.
  • the main path antenna and the auxiliary path antenna in the antenna module 101 can be designed to have a radiation angle smaller than or equal to Directional antenna at 180°.
  • the directional antenna has a larger gain, which can improve the radiation efficiency.
  • the radiation angle and direction of each antenna can be artificially designed.
  • the radiation direction of each antenna is designed to face a metal-free area such as a window. Compared with the omnidirectional antenna, the signal transmission efficiency is higher and the communication effect is better.
  • the periphery of the housing of the center console may be four sides of the square housing, or may be a side of a circular or elliptical housing.
  • the housing of the center console of the embodiment of the present application is not limited to the above shape, and is merely an exemplary function.
  • the central control unit 102 can be disposed on the second PCB, and the plurality of LTE modules 1021 and 1022 are disposed on the second PCB, and the plurality of LTE modules 1021 are connected to the CPU 1022 through the traces on the second PCB.
  • the LTE module can also be disposed on the third PCB.
  • the LTE module can be connected through a MiniPCI (Mini Peripheral Component Interconnect Express) interface or other PCI (Peripheral Component Interconnect) interface and the second interface.
  • MiniPCI Mini Peripheral Component Interconnect Express
  • PCI Peripheral Component Interconnect
  • the central control unit 102 includes N LTE modules 1021, and the N LTE modules 1021 are respectively connected to the CPU 1022.
  • the signal received by the LTE module 1021 is sent to the CPU 1022 for processing.
  • the antenna module 101 and the central control unit 102 are disposed in the center console, and the routing between the antenna module 101 and the central control unit 102 is simple, the wiring harness is small and short, and the high-frequency energy transmission process can be reduced. The loss ensures excellent performance.
  • the embodiment of the present application further provides an in-vehicle antenna system, as shown in FIG. 10,
  • the vehicle-mounted antenna system includes: a central control unit 1002 and a plurality of antenna modules 1001, and the central control unit 1002 includes: a CPU 10022, and a plurality of Each LTE module 10021 of the central control unit 1002 is connected to at least one antenna module 1001, and the plurality of LTE modules 10021 are respectively connected to the CPU 10022.
  • the second PCB of the central control unit 1002 is provided with a CPU 10022, an FM module 10023, a GPS module 10024, a WiFi/BT module 10025, and a CMMB module 10026.
  • the vehicle antenna system further includes an FM module 10023, a GPS module 10024, and a WiFi/BT.
  • the FM antenna, the GPS antenna, the WiFi/BT antenna, and the CMMB antenna are sequentially connected to the central control unit 1002 through an RF transmission line.
  • FIG. 11 to 13 respectively show the structure of the vehicle-mounted antenna system under the three design processes of the antenna module 1001, and the structure in FIG. 11 is the structure of the vehicle-mounted antenna system in which the antenna module 1001 is a PCB process.
  • the structure in FIG. 12 is that the antenna module 1001 is a structure of an in-vehicle antenna system of the FPC process.
  • the structure in FIG. 13 is that the antenna module 1001 is a structure of an in-vehicle antenna system of the LDS process.
  • the specific structure of the vehicle-mounted antenna system in FIG. 11 to FIG. 13 has been described in the above embodiments, and details are not described herein again.
  • the embodiment of the present application further provides an automobile, which includes the above-mentioned vehicle antenna system, and the specific structure is described in the above embodiment, and details are not described herein again.
  • the vehicle-mounted antenna system provided by the embodiment of the present invention realizes high-speed communication function of the vehicle-mounted antenna through multiple antenna modules and multiple LTE modules of the central control unit, and the LTE module is disposed in the central control unit, thereby reducing the length of the wire harness. It can reduce signal attenuation, improve transmission efficiency and reduce power consumption.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请公开了一种车载天线系统及汽车，包括：中控单元和多个天线模块，所述中控单元包括：中央处理器、多个长期演进LTE模块，所述中控单元中每个所述LTE模块与至少一个所述天线模块连接，所述多个LTE模块分别与所述中央处理器连接。通过多个天线模块和中控单元的多个LTE模块连接，实现车载天线的高速通信的功能，LTE模块设置在中控单元中，减少了线束的长度，可以减少信号衰减，提升传输效率，减少功耗。

Description

一种车载天线系统及汽车
本申请要求在2015年11月11日提交中国专利局、申请号为201510766277.X、申请名称为“一种车载天线系统及汽车”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通讯技术领域，尤其涉及一种车载天线系统及汽车。
背景技术
随着社会的发展，人们的生活水平在不断的提高，人们对车辆的功能以及舒适性要求也在不断的提高，可以实现车内视频观看、高速网络体验等各种互联网相关功能，互联网智能汽车将是未来发展必然趋势。
车辆可以实现上述这些功能需要通过车载天线接收无线信号来实现，随着车辆功能的增加，需要的天线也越来越多，如广播、全球定位、移动电视，移动通讯等，现有技术中普遍采用单根天线的设计方案，由此可知，车辆无法同时接收到各类信号，无法实现车内视频观看、高速网络体验等各种互联网相关功能。
发明内容
本申请实施例提供一种车载天线系统及汽车，用以实现车载天线的高速通信的功能，且便于安装，稳定性好。
本申请实施例提供的一种车载天线系统，包括：
中控单元和多个天线模块；
所述中控单元包括：中央处理器、多个LTE(Long Term Evolution，长期演进)模块；
所述中控单元中每个所述LTE模块与至少一个所述天线模块连接；
所述多个LTE模块分别与所述中央处理器连接。
相应地，本申请实施例还提供了一种汽车，包括上述车载天线系统。
本申请实施例提供的车载天线系统，通过多个天线模块和中控单元的多个LTE模块连接，实现车载天线的高速通信的功能，LTE模块设置在中控单元中，减少了线束的长度，可以减少信号衰减，提升传输效率，减少功耗。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例中的一种车载天线系统的结构示意图；
图2为本申请实施例中的一种天线模块的结构示意图；
图3为本申请实施例中的一种天线模块的结构示意图；
图4为本申请实施例中的一种天线模块的结构示意图；
图5a至图5c为本申请实施例中的一种天线模块的结构示意图；
图6为本申请实施例中的一种天线模块安装位置示意图；
图7为本申请实施例中的一种天线模块安装位置示意图；
图8为本申请实施例中的一种天线模块安装位置示意图；
图9为本申请实施例中的一种天线模块安装位置示意图；
图10为本申请实施例中的一种车载天线系统的结构示意图；
图11为本申请实施例中的一种车载天线系统的结构示意图；
图12为本申请实施例中的一种车载天线系统的结构示意图；
图13为本申请实施例中的一种车载天线系统的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
目前，传统的车载天线系统的设计只是实现了FM(Frequency  Modulation，调频)、GPS(Global Positioning System，全球定位系统)、WiFi/BT(WIreless-Fidelity/Bluetooth，无线高保真/蓝牙)、CMMB(China Mobile Multimedia Broadcasting，中国移动多媒体广播)等基本功能，天线普遍采用鲨鱼鳍天线、螺旋天线、立柱天线等设计方案。随着技术的发展，用户希望通过车载中控台实现车载视频通话，观看高清视频等活动，而实现这些功能需要车辆能够提供高速网络传输。
基于上述描述，图1示出了一种车载天线系统的示意结构，如图1所示，该车载天线系统包括：
中控单元102和多个天线模块101，中控单元102包括：CPU(Central Processing Unit，中央处理器)1022、多个LTE模块1021，中控单元102中每个LTE模块1021与至少一个天线模块101连接，多个LTE模块1021分别与CPU1022连接。
该LTE模块1021可以进行2G(第二代移动通信)、3G(第三代移动通信)、4G(第四代移动通信)的通信，每个LTE模块1021可以通过其对应的天线模块101接收和发射信号进行与外网的通信。
如图1所示，多个LTE模块1021，每个LTE模块1021与两个天线模块101连接，分别是主路天线和辅路天线。该LTE模块1021也可以与一个天线模块101连接，连接的天线模块101的个数越多，LTE模块1021的通信性能越好。
在只有一个LTE模块1021的场景下，该车载天线系统的网络传输速度可以比2G模式和3G模式下的天线系统的网络传输速度要快。在多个LTE模块1021和多个天线模块101的场景下，由于多载波聚合，通过车载天线系统中的多个LTE模块1021和多个天线模块101可以为车辆提供高速网络传输，从而实现在车辆中进行车载视频通话、观看高清视频的活动。与现有技术相比，本申请实施例提高了网络传输速度。
本申请实施例中，天线模块101的制作工艺有多种，本申请实施例中的天线模块101的制作工艺至少包括以下几种：
方案一
如图2所示，将天线模块101印刷在第一PCB(Printed Circuit Board，印制电路板)上，通过刻蚀的方法刻蚀第一PCB的金属层，获取天线模块101。也可以将天线模块101的图形印刷在第一PCB上。该天线模块101 通过RF(Radio Frequency，射频)传输线连接至RF接口上，RF接口与LTE模块1021连接。LTE模块1021通过该天线模块101进行收发信号。这种天线模块101整体结构简单，便于安装。
方案二
如图3所示，天线模块101通过刻蚀FPC(Flexible Printed Circuit，柔性电路板)形成的。通过对使用具有天线图形的掩膜板遮掩的FPC进行曝光，然后对曝光后的FPC上的金属层进行刻蚀，制作成迷宫型的天线模块101。FPC工艺制作的天线模块101，结构空间小，便于安装，可以将该FPC通过背胶粘贴在中控台壳体上，如中控台的外壳上，可以是中控台外壳非金属部分的外侧，也可以是中控台非金属部分的内侧，也可以将FPC粘贴在第二PCB上。该天线模块101通过RF电缆连接至RF接口上，RF接口与LTE模块1021连接。这种天线模块101，具有配线密度高，重量轻，易弯折等优点。
方案三
如图4所示，天线模块101是通过LDS(Laser Direct Structuring，激光直接成型技术)镭雕在结构件的壳体上形成的。使用LDS工艺将金属粉镭雕至任意的结构件的壳体上，如中控台的外壳上，可以是中控台的外壳非金属部分的外侧，也可以是外壳非金属部分的内侧。这种天线模块101可以任意设计天线图形，镭雕在任意形状的结构件的壳体上，不受产品结构形态的限制，灵活性较大，不仅可以避免与LTE模块1021内的金属干扰，还可以减小LTE模块1021的体积。该天线模块101通过RF电缆连接至RF接口上，RF接口与LTE模块1021连接。
相应地，本申请实施例还提供了几种天线模块101的结构示意图，如图5a至图5c所示。图5a示出了一种天线模块101的剖视图，天线模块101的截面图，从图5a中可以看出，天线模块101的图形结构，该天线模块101的图形结构是印制在FPC上的。图5b和图5c分别示出了两种天线模块101的天线图形，分别是圆环形结构和回形结构。在制作天线模块101时，可以设计成这两种图形，在FPC上按照图形进行刻蚀得到天线模块101，或者是使用金属粉通过LDS镭雕成这两种图形。天线模块101的图形在实际应用时，可以自由设计。
上述三种制作天线模块101的方案，仅是本申请实施例用以示例，不 表示该天线模块101的制作工艺仅限于上述方案，本申请实施例不对此做限制。
本申请实施例中的可以将天线模块101设置在中控台中，如图6所示，可以使用LDS工艺将天线模块101的图形镭雕在中控台的外壳上，可以镭雕在中控台的外壳外侧，也可以镭雕在中控台的外壳内侧。如果中控台的外壳是与中控主屏幕前后叠加组装，外壳单独安装，则将天线模块101设置在该外壳面对乘客一面的四个边上。
具体的，如图7所示的天线模块101的安装位置的结构，图7中粗黑实体线标注的区域为天线模块101可以安装的位置，即在中控台的外壳的四条侧边的四个角的位置。在四个角共8个位置摆放4个天线模块101(包括主路天线和辅路天线)，四个角的天线模块101之间距离最远。每个角的天线模块101中的主路天线和辅路天线虽然距离不是最远，但是主路天线和辅路天线之间由于是“一横一竖”的安装位置，有利于极化方向隔离，同样可以做到两个天线之间的隔离度很好，保证通信性能。
如图8所示的天线模块101的安装位置的结构，图8中粗黑实体线标注的区域为天线模块101可以安装的位置，即在中控台的外壳的四条侧边的上，在每个侧边的1/3位置处，共8个位置摆放4个天线模块101(包括主路天线和辅路天线)，这样每个天线之间的距离可以做到间隔最远，从而保证每个天线之间的隔离度，保证通信性能。
如图9所示的天线模块101的安装位置的结构，图9中粗黑实体线标注的区域为天线模块101可以安装的位置。该中控台的形状为椭圆形，在中控台的外壳的侧边上等距离划分8个位置，在这8个位置摆放4个天线模块101(包括主路天线和辅路天线)，这样每个天线之间的距离可以做到间隔最远，从而保证每个天线之间的隔离度，保证通信性能。如果中控台的形状为圆形，则依据上述方法进行安装。
由于现有技术中的车辆的天线系统都是单天线设计方案，如果需要接收到各类信号，就需要将多个天线同时安装在车辆上，这些天线需要安装在车辆的车顶外部，这就增加了车辆的不稳定性。而与现有技术相比，本申请实施例可以将天线模块101设置在车辆的中控台上，无需安装在车辆的外部，从而提高了车辆的稳定性。
上述天线模块101中的主路天线和辅路天线可以设计成辐射角小于等 于180°的定向天线。与传统的汽车外置天线相比，定向天线的增益较大，可以提升辐射效率。可以人为设计各天线的辐射角度和方向，根据实际中控单元102在车体的位置，以及天线在中控台中的位置，将各个天线的辐射方向设计朝向车窗等无金属遮挡的区域。与全向天线相比，信号传输效率更高，通讯效果更好。
本申请实施例中，中控台的壳体的周边可以是方形壳体的四个侧边，也可以是圆形或椭圆形壳体的侧边。本申请实施例的中控台的壳体不限于上述形状，仅是示例作用。
图1所示，中控单元102可以设置在第二PCB上，将多个LTE模块1021和CPU1022设置在第二PCB上，该多个LTE模块1021通过第二PCB上的走线与CPU1022连接。该LTE模块也可以设置在第三PCB上，该LTE模块可以通过MiniPCIE(Mini Peripheral Component Interconnect Express，小型特快外设组件互联)接口或者其它PCI(Peripheral Component Interconnect，外设组件互联)接口与第二PCB上的中控单元102中的CPU1022连接。
中控单元102包括N个LTE模块1021，该N个LTE模块1021都分别与CPU1022连接，与CPU1022连接的LTE模块1021的数量越多，该车载天线系统的性能越优，可以是实现高速通信，如10Gb/s，20Gb/s的高速通信功能。LTE模块1021接收到的信号发送给该CPU1022进行处理。
在本申请实施例中，将天线模块101和中控单元102设置在中控台中，天线模块101与中控单元102之间的走线设计简单，线束少且短，能够减少高频能量传输过程的损耗，保证优异的性能。
相应地，本申请实施例还提供了一种车载天线系统，如图10所示的结构，该车载天线系统包括：中控单元1002和多个天线模块1001，中控单元1002包括：CPU10022、多个LTE模块10021，中控单元1002中每个LTE模块10021与至少一个天线模块1001连接，多个LTE模块10021分别与CPU10022连接。
该中控单元1002的第二PCB上设置了CPU10022，FM模块10023、GPS模块10024、WiFi/BT模块10025、CMMB模块10026，该车载天线系统还包括与FM模块10023、GPS模块10024、WiFi/BT模块10025、CMMB模块10026对应的FM天线、GPS天线、WiFi/BT天线和CMMB天线。该 FM天线、GPS天线、WiFi/BT天线和CMMB天线依次通过RF传输线与中控单元1002连接。
图11至图13分别示出了天线模块1001的三种设计工艺下的车载天线系统的结构，图11中的结构为天线模块1001是PCB工艺的车载天线系统的结构。图12中的结构为天线模块1001是FPC工艺的车载天线系统的结构。图13中的结构为天线模块1001是LDS工艺的车载天线系统的结构。图11至图13中车载天线系统的具体结构已在上述实施例中描述，在此不再赘述。
基于相同的发明构思，本申请实施例还提供了一种汽车，该汽车包括上述车载天线系统，具体结构以在上述实施例中描述，在此不再赘述。
本申请实施例提供的车载天线系统，通过多个天线模块和中控单元的多个LTE模块连接，实现车载天线的高速通信的功能，LTE模块设置在中控单元中，减少了线束的长度，可以减少信号衰减，提升传输效率，减少功耗。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (10)

  1. 一种车载天线系统，其特征在于，包括：中控单元和多个天线模块；
    所述中控单元包括：中央处理器、多个长期演进LTE模块；
    所述中控单元中每个所述LTE模块与至少一个所述天线模块连接；
    所述多个LTE模块分别与所述中央处理器连接。
  2. 根据权利要求1所述的车载天线系统，其特征在于，所述天线模块是通过印刷在第一印刷电路板PCB上形成的。
  3. 根据权利要求1所述的车载天线系统，其特征在于，所述天线模块是通过刻蚀柔性电路板形成的，所述天线模块粘贴在车辆中控台的壳体上。
  4. 根据权利要求1所述的车载天线系统，其特征在于，所述天线模块是通过激光直接成型工艺LDS镭雕在车辆中控台的壳体上形成的。
  5. 根据权利要求1所述的车载天线系统，其特征在于，所述LTE模块设置在第二PCB上；
    所述LTE模块通过所述第二PCB的走线与所述中央处理器连接。
  6. 根据权利要求1所述的车载天线系统，其特征在于，所述中控单元通过射频RF连接线与每个所述天线模块连接。
  7. 根据权利要求1至6任一项所述的车载天线系统，其特征在于，所述多个天线模块和所述中控单元位于车辆中控台区域。
  8. 根据权利要求7所述的车载天线系统，其特征在于，所述多个天线模块位于所述车辆中控台的壳体的角上。
  9. 根据权利要求7所述的车载天线系统，其特征在于，所述多个天线模块位于所述车辆中控台的壳体的周边。
  10. 一种汽车，其特征在于，包括根据权利要求1至9任一项所述的车载天线系统。
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