CN109638419B - Vehicle-mounted intelligent antenna - Google Patents
Vehicle-mounted intelligent antenna Download PDFInfo
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- CN109638419B CN109638419B CN201811615394.6A CN201811615394A CN109638419B CN 109638419 B CN109638419 B CN 109638419B CN 201811615394 A CN201811615394 A CN 201811615394A CN 109638419 B CN109638419 B CN 109638419B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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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
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
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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
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Abstract
The invention discloses a vehicle-mounted intelligent antenna, which comprises an electronic information processing unit and an antenna unit, wherein the electronic information processing unit is connected with the antenna unit; the electronic information processing unit comprises a processing module, a bus module, a mobile wireless module, a Wifi-BT module, a GNSS module, a UHF module, an FM/AM module and a positioning module which are respectively connected with the processing module, and a Wifi-BT board antenna connected with the Wifi-BT module; the mobile wireless module is a 4G module or a 5G module; when the mobile wireless module is a 4G module, the antenna unit comprises a 4G main antenna, a 4G diversity antenna/GNSS antenna, an FM/AM antenna and an UHF antenna; when the mobile wireless module is a 5G module, the antenna unit comprises a 5G main antenna, a 5G diversity antenna/GNSS antenna, an FM/AM antenna and an UHF antenna. The invention solves the problems of resource repetition and lower antenna performance.
Description
Technical Field
The invention belongs to the technical field of intelligent antennas, and particularly relates to a vehicle-mounted intelligent antenna.
Background
With the development of automotive electronics and the derivation of automotive requirements, more and more wireless communication technologies are applied to automobiles. At present, a keyless entry system, a tire pressure monitoring system and the like adopt 433.42MHz frequency bands and surrounding public frequency bands, a digital key system adopts a 2.4GHz public frequency band, functional systems such as Bluetooth music, hot spots and the like adopt 2.4GHz or 5GHz public frequency bands, a 4G communication module uses different network frequency bands according to different network suppliers, each communication module needs to be provided with a corresponding receiving device and an antenna on an automobile, so that resource repetition is caused, meanwhile, due to the existence of various wireless systems, the problems of EMI and EMS are prominent, and most of the antennas coexist with a host machine, so that the attenuation on a transmission path of a wireless signal is serious. In addition, with the application of 5G and V2X, the processing capacity that the on-vehicle smart antenna can be compatible follow-up newly-increased module is required, and the current 4G module is used as the application processor simultaneously, so that the resource consumption is nervous, and the expansion cannot be realized, so that the requirement of product updating cannot be met.
Therefore, there is a need to develop a new vehicle-mounted smart antenna.
Disclosure of Invention
The invention aims to provide a vehicle-mounted intelligent antenna to solve the problems of resource repetition and low antenna performance.
The invention relates to a vehicle-mounted intelligent antenna, which comprises an electronic information processing unit and an antenna unit, wherein the electronic information processing unit is connected with the antenna unit;
the electronic information processing unit comprises a processing module, a bus module, a mobile wireless module, a Wifi-BT module, a GNSS module, a UHF module, an FM/AM module and a positioning module which are respectively connected with the processing module, and a Wifi-BT board antenna connected with the Wifi-BT module;
the mobile wireless module is a 4G module or a 5G module;
when the mobile wireless module is a 4G module, the antenna unit comprises a 4G main antenna, a 4G diversity antenna/GNSS antenna, an FM/AM antenna and an UHF antenna;
when the mobile wireless module is a 5G module, the antenna unit comprises a 5G main antenna, a 5G diversity antenna/GNSS antenna, an FM/AM antenna and an UHF antenna.
The high-speed connector is also included;
when the mobile wireless module is a 4G module, the 4G main antenna, the 4G diversity antenna/GNSS antenna, the FM/AM antenna and the UHF antenna are respectively connected with the high-speed connector; the 4G module, the GNSS module, the FM/AM module and the UHF module are respectively connected with the high-speed connector;
when the mobile wireless module is a 5G module, the 5G main antenna, the 5G diversity antenna/GNSS antenna, the FM/AM antenna and the UHF antenna are respectively connected with the high-speed connector; the 5G module, the GNSS module, the FM/AM module and the UHF module are respectively connected with the high-speed connector; wireless communication performance can be optimized and improved.
The antenna unit is arranged in a cavity of the shark fin, and the shark fin is positioned outside an iron sheet of a vehicle ceiling; antenna performance can be optimized and improved.
The processing module comprises an SOC and an MCU, and the SOC and the MCU are communicated through a high-speed data bus;
the bus module, the UHF module and the positioning module are all mounted on the MCU;
when the mobile wireless module is a 4G module, the GNSS module, the FM/AM module and the Wifi-BT module are all mounted on the SOC;
when the mobile wireless module is a 5G module, the GNSS module, the FM/AM module and the Wifi-BT module are all mounted on the SOC.
Further, the electronic information processing unit further comprises a vehicle-mounted Ethernet, and the vehicle-mounted Ethernet is mounted on the SOC.
Furthermore, the bus module adopts a CAN/CANFD module.
The positioning antenna is arranged at the front part of the vehicle, one positioning antenna is arranged in the middle of the vehicle, the other two positioning antennas are respectively arranged at the left side and the right side of the vehicle, and the four positioning antennas are respectively connected with the positioning module; the positioning antenna is arranged outside the vehicle, so that the path loss of wireless signal transmission is reduced, and the positioning antenna can be adapted to various positioning functions.
The invention has the following advantages:
(1) the problems of resource repetition and lower antenna performance in the traditional system are solved;
(2) the vehicle-mounted antenna adopts an independent application processor, can be compatible with subsequent upgrading requirements, solves the problem that the conventional vehicle-mounted antenna cannot be compatible with the subsequent upgrading requirements, and can be compatible with various configurations and various vehicle types.
Drawings
FIG. 1 is a schematic block diagram of a first embodiment;
FIG. 2 is a schematic block diagram of a second embodiment;
fig. 3 is a diagram showing a state of use of the present invention in a vehicle.
In the figure: 1. processing module, 2, on-vehicle ethernet, 3, CAN/CANFD module, 4G module, 5, Wifi-BT module, 6, GNSS module, 7, UHF module, 8, FM/AM module, 9, Wifi-BT board antenna, 10, location module, 11, high-speed connector, 12, 4G main antenna, 13, 4G diversity antenna/GNSS antenna, 14, FM/AM antenna, 15, UHF antenna, 16, 5G main antenna, 17, 5G diversity antenna/GNSS antenna, 18, 5G module, 19, HU, 20, BCM and PEPS, 21, on-vehicle smart antenna, 22, location antenna.
Detailed Description
The invention will be further explained with reference to the drawings.
Example one
The vehicle-mounted intelligent antenna shown in fig. 1 comprises an electronic information processing unit and an antenna unit, wherein the electronic information processing unit is connected with the antenna unit.
As shown in fig. 1, in the present embodiment, the electronic information processing unit includes a processing module 1, a vehicle-mounted ethernet 2, a bus module, a 4G module 4, a Wifi-BT module 5, a GNSS module 6 (i.e., a positioning module based on the big dipper and the GPS), a UHF module 7 (i.e., a wireless communication module representing 433MHz and its vicinity), an FM/AM module 8 (i.e., an FM/AM radio), a positioning module 10, and a Wifi-BT board antenna 9 connected to the Wifi-BT module 5, respectively.
In this embodiment, the Wifi-BT module 5 includes a Wifi module and a BT module. The FM/AM module 8 is configured to demodulate the received FM signal and AM signal. The bus module adopts a CAN/CANFD module 3 and is used for carrying out data communication with a CAN bus or a CANFD bus on a vehicle. The processing module 1 includes an SOC (application processor) and an MCU (microprocessor), which communicate through a high-speed data bus.
In this embodiment, the vehicle-mounted ethernet 2, the 4G module 4, the Wifi-BT module 5, the GNSS module 6, and the FM/AM module 8 are all mounted on the SOC. The CAN/CANFD module 3, the UHF module 7 and the positioning module 10 which have strict requirements on control time are all mounted on the MCU.
In this embodiment, the antenna unit includes a 4G main antenna 12, a 4G diversity antenna/GNSS antenna 13, an FM/AM antenna 14, and a UHF antenna 15. The 4G diversity antenna/GNSS antenna 13 is used to assist the 4G main antenna 12 in receiving data signals and receiving GNSS signals. The FM/AM antenna 14 is used to receive FM signals and AM signals.
In this embodiment, the vehicle-mounted smart antenna further includes a high-speed connector 11 (e.g., a 4pin high-speed connector); the 4G main antenna 12, the 4G diversity antenna/GNSS antenna 13, the FM/AM antenna 14 and the UHF antenna 15 are respectively connected with the high-speed connector 11; the 4G module 4, the GNSS module 6, the FM/AM module 8 and the UHF module 7 are respectively connected with a high-speed connector 11; the physical path of the signal provided by the high speed connector 11 can optimize and improve wireless communication performance.
In this embodiment, the antenna unit sets up in the cavity of shark fin, and the shark fin is located outside the vehicle ceiling iron skin, can optimize and promote the antenna performance.
As shown in fig. 3, in the present embodiment, the vehicle-mounted smart antenna further includes four positioning antennas 22, one positioning antenna 22 is disposed at the front of the vehicle, the other two positioning antennas 22 are disposed at the left and right sides of the vehicle, and the four positioning antennas 22 are respectively connected to the positioning module 10; the positioning antenna 22 is disposed outside the vehicle, so that the path loss of wireless signal transmission is reduced, and various positioning functions can be adapted.
As shown in fig. 3, the HU19 (in-vehicle display terminal) is connected to the in-vehicle smart antenna 21 through the in-vehicle ethernet 2, and the in-vehicle smart antenna 21 cooperates with the HU19 to perform FM/AM, network, data, GNSS data, bluetooth communication, music, and other functions. The BCM (vehicle body controller) and the PEPS (keyless entry system) are connected with the vehicle-mounted intelligent antenna 21 through the CAN/CANFD bus, and the vehicle-mounted intelligent antenna 21 is matched with the BCM and the PEPS20 to complete functions of UHF (ultra high frequency radio wave), positioning and the like. For the positioning function supported by the positioning module 10, the optimization effect of the vehicle-mounted smart antenna 21 on the wireless communication (i.e. the positioning antenna 22 is disposed outside the vehicle, so that the path loss of wireless signal transmission is reduced) can be adapted to various positioning schemes. And provides the relative position of the user and the vehicle through the CAN or CANFD bus, thereby realizing rich functions and various configurations (the traditional positioning scheme (the current existing scheme) of 134KHz/125KHz CAN be supported at present, and the positioning scheme based on BLE CAN be expanded in the future).
Example two
As shown in fig. 2, in the present embodiment, the mobile wireless module is a 5G module 18, and the antenna unit includes a 5G main antenna 16, a 5G diversity antenna/GNSS antenna 17, an FM/AM antenna 14, and a UHF antenna 15. The 5G module 18, the 5G main antenna 16 and the 5G diversity antenna/GNSS antenna 17 are respectively connected with a 4pin high-speed connector. Wherein the 5G main antenna 16 is used for receiving and transmitting 5G data signals, having a downward compatible function. The 5G diversity antenna/GNSS antenna 17 assists the 5G main antenna in receiving data signals and receiving GNSS signals, and the 5G diversity antenna/GNSS antenna 17 also has a downward compatible function.
The rest is the same as the first embodiment.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (5)
1. The utility model provides a vehicle-mounted smart antenna which characterized in that: the system comprises an electronic information processing unit and an antenna unit, wherein the electronic information processing unit is connected with the antenna unit;
the electronic information processing unit comprises a processing module (1), a bus module, a mobile wireless module, a Wifi-BT module (5), a GNSS module (6), a UHF module (7), an FM/AM module (8) and a positioning module (10) which are respectively connected with the processing module (1), and a Wifi-BT board antenna (9) connected with the Wifi-BT module (5);
the mobile wireless module is a 4G module (4) or a 5G module (18);
when the mobile wireless module is a 4G module (4), the antenna unit comprises a 4G main antenna (12), a 4G diversity antenna/GNSS antenna (13), an FM/AM antenna (14) and a UHF antenna (15);
when the mobile wireless module is a 5G module (18), the antenna unit comprises a 5G main antenna (16), a 5G diversity antenna/GNSS antenna (17), an FM/AM antenna (14) and a UHF antenna (15);
also includes a high-speed connector (11);
when the mobile wireless module is a 4G module (4), the 4G main antenna (12), the 4G diversity antenna/GNSS antenna (13), the FM/AM antenna (14) and the UHF antenna (15) are respectively connected with the high-speed connector (11); the 4G module (4), the GNSS module (6), the FM/AM module (8) and the UHF module (7) are respectively connected with a high-speed connector (11);
when the mobile wireless module is a 5G module (18), the 5G main antenna (16), the 5G diversity antenna/GNSS antenna (17), the FM/AM antenna (14) and the UHF antenna (15) are respectively connected with the high-speed connector (11); the 5G module (18), the GNSS module (6), the FM/AM module (8) and the UHF module (7) are respectively connected with the high-speed connector (11);
the antenna unit is arranged in a cavity of the shark fin, and the shark fin is located outside an iron sheet of a vehicle ceiling.
2. The vehicle-mounted smart antenna of claim 1, wherein: the processing module (1) comprises an SOC and an MCU, and the SOC and the MCU are communicated through a high-speed data bus;
the bus module, the UHF module (7) and the positioning module (10) are all mounted on the MCU;
when the mobile wireless module is a 4G module (4), the GNSS module (6), the FM/AM module (8) and the Wifi-BT module (5) are all mounted on the SOC;
when the mobile wireless module is a 5G module (18), the GNSS module (6), the FM/AM module (8) and the Wifi-BT module (5) are all mounted on the SOC.
3. The vehicle-mounted smart antenna according to claim 1 or 2, characterized in that: the electronic information processing unit further comprises a vehicle-mounted Ethernet (2), and the vehicle-mounted Ethernet (2) is mounted on the SOC.
4. The vehicle-mounted smart antenna of claim 3, wherein: the bus module adopts a CAN/CANFD module (3).
5. The vehicle-mounted smart antenna of claim 1, 2 or 4, wherein: the automobile seat further comprises four positioning antennas (22), wherein one positioning antenna (22) is arranged at the front part of the automobile, one positioning antenna (22) is arranged in the middle of the automobile, the other two positioning antennas are arranged on the left side and the right side of the automobile respectively, and the four positioning antennas (22) are connected with the positioning module (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615394.6A CN109638419B (en) | 2018-12-27 | 2018-12-27 | Vehicle-mounted intelligent antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615394.6A CN109638419B (en) | 2018-12-27 | 2018-12-27 | Vehicle-mounted intelligent antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109638419A CN109638419A (en) | 2019-04-16 |
| CN109638419B true CN109638419B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811615394.6A Active CN109638419B (en) | 2018-12-27 | 2018-12-27 | Vehicle-mounted intelligent antenna |
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| CN (1) | CN109638419B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3099013A1 (en) * | 2019-07-16 | 2021-01-22 | Psa Automobiles Sa | Distributed telematics system for a motor vehicle |
| CN112422143B (en) * | 2020-11-03 | 2022-11-08 | 江苏北斗星通汽车电子有限公司 | High-precision positioning vehicle-mounted equipment, intelligent cabin and vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204707116U (en) * | 2015-07-01 | 2015-10-14 | 成都福兰特电子技术股份有限公司 | Based on the vehicle mounted communication equipment of wireless network |
| CN206611411U (en) * | 2016-12-16 | 2017-11-03 | 湖南中联重科智能技术有限公司 | A kind of car-mounted terminal and engineering mechanical device |
| CN107415691B (en) * | 2017-07-28 | 2020-11-20 | 上海仪电汽车电子系统有限公司 | Centralized vehicle-mounted display control system |
| CN207199826U (en) * | 2017-08-15 | 2018-04-06 | 江苏骅盛车用电子股份有限公司 | A kind of multi-functional fin antenna |
| CN208062244U (en) * | 2018-03-13 | 2018-11-06 | 乐荣工业股份有限公司 | Integrated form fin antenna |
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| CN109638419A (en) | 2019-04-16 |
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Effective date of registration: 20210507 Address after: 401120 No.107 dataguzhong Road, Xiantao street, Yubei District, Chongqing Patentee after: Chongqing Changan Automobile Software Technology Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee before: Chongqing Changan Automobile Co.,Ltd. |