CN115113253A - High-precision vehicle positioning method combined with 5G - Google Patents
High-precision vehicle positioning method combined with 5G Download PDFInfo
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- CN115113253A CN115113253A CN202210707446.2A CN202210707446A CN115113253A CN 115113253 A CN115113253 A CN 115113253A CN 202210707446 A CN202210707446 A CN 202210707446A CN 115113253 A CN115113253 A CN 115113253A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30248—Vehicle exterior or interior
- G06T2207/30252—Vehicle exterior; Vicinity of vehicle
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Traffic Control Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a high-precision vehicle positioning method combined with 5G, which is based on 5G network infrastructure coverage, a camera and V2X basic equipment are widely used on a vehicle for establishing, positioning information takes GNSS real-time information as a reference, comparison calculation is carried out by adopting road driving periphery actual images transmitted by the 5G equipment and radar scanning object forms, a real-time position with higher vehicle precision is determined, a cloud platform with high calculation power is adopted for processing data, real-time analysis is carried out, the time delay disadvantage of sending the data to the cloud platform for processing is offset, the calculation burden of TBOX is reduced, and the cost reduction of the TBOX is facilitated.
Description
Technical Field
The invention relates to the field of intelligent networking automobile end networking, in particular to a high-precision vehicle positioning method combining 5G.
Background
With the development of scientific technology and the improvement of personal living standard in recent years, consumers have not satisfied that automobiles exist only as traditional automobiles, and gradually put eyes on intelligent networked automobiles. This requirement is not very demanding on connection rates, but is very power and cost sensitive, widely distributed and numerous. In wireless positioning, narrowband internet of things (NB-IoT) positioning accuracy is poor, while cellular networks have higher positioning accuracy with time difference of arrival (TDOA), angle of arrival (DOA) information, and the like. However, current 4G networks cannot carry a large number of IoT connections.
At present, positioning data are collected by a GNSS antenna and sent to a T-BOX, the T-BOX transmits the data to navigation software for calculation, such a traditional path is still adopted by the method, along with the popularization of V2X and automatic driving in recent years, the requirement on the positioning accuracy of the vehicle is higher and higher, and at present, under the condition of a 4G network, a normal GNSS antenna is adopted, the positioning accuracy is only 2.5M, and the requirements on automatic driving and lane-level positioning cannot be met.
Disclosure of Invention
Aiming at the problems in the prior art, the invention discloses a high-precision vehicle positioning method combined with 5G, positioning information takes GNSS real-time information as a reference, and the actual images of the periphery of a road vehicle transmitted by 5G equipment and the shapes of radar scanning objects are compared and calculated, so that the positioning precision is improved.
The technical scheme adopted for realizing the invention is as follows: A5G-combined high-precision vehicle positioning method is characterized by comprising the following steps: after acquiring satellite positioning data, a vehicle-mounted GNSS antenna sends the satellite positioning data to a T-BOX communication module, wherein the T-BOX communication module adopts a 5G communication module; the T-BOX communication module uploads the satellite positioning data to a cloud service platform; the cloud service platform feeds the satellite positioning data back to the T-BOX communication module in real time after carrying out feature extraction comparison on the feature value of the image acquired by the vehicle-mounted camera and the high-definition satellite map and the positioning point uploaded by the satellite positioning data by the T-BOX communication module; and feeding back the satellite positioning data to a sound host machine through an Ethernet by a T-BOX communication module, and correcting the vehicle positioning at high precision by the sound host machine.
Furthermore, a data link of the 5G communication module is in communication connection with a road side unit RSU and a T-BOX through a 5G base station, data of a vehicle camera and a radar are collected by the T-BOX through an Ethernet and are packaged, the data are communicated through the 5G after being packaged, the data are transmitted to the road side unit RSU, the road side unit RSU receives the data and then transmits the data to a cloud service platform for analysis, and an image key value is extracted.
Further, the T-BOX uploads satellite positioning data to be converted uniformly according to a WGS84 geodetic coordinate system in 1984 and uploaded to a cloud service platform.
The invention discloses a high-precision vehicle positioning method combined with 5G, which has the beneficial effects that:
a high-precision vehicle positioning method combined with 5G is based on 5G network infrastructure coverage, cameras and V2X basic equipment are widely used on vehicles to be established, 5G low-delay and high-speed communication is used for rapidly sending images collected by vehicle-mounted cameras to perform real-time analysis, the delay disadvantage of data sending cloud platform processing is offset, the problem that navigation precision on an existing vehicle positioning system is insufficient is solved, GNSS data is used as a reference, the real-time position with higher vehicle precision is determined, the cloud platform with high calculation power is used for processing the data, the calculation burden of TBOX is reduced, and cost reduction of TBOX is facilitated.
Drawings
FIG. 1 is a positioning algorithm architecture diagram incorporating the 5G high precision vehicle positioning method;
FIG. 2 is a diagram of a data transmission link incorporating the high accuracy vehicle locating method of 5G;
FIG. 3 is a flow chart of a positioning algorithm incorporating the 5G high accuracy vehicle positioning method.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-3 and the specific embodiments described herein, which are provided for illustration only and are not intended to limit the invention.
As shown in the attached figure 1, the positioning information is compared and calculated by taking GNSS real-time information as a reference and adopting a road driving surrounding actual image transmitted by 5G equipment and a radar scanning object form, so that the positioning accuracy is improved.
Referring to fig. 3, a positioning algorithm flow chart of a 5G-combined high-precision vehicle positioning method, includes the following steps: after acquiring satellite positioning data, a vehicle-mounted GNSS antenna sends the satellite positioning data to a T-BOX communication module, wherein the T-BOX communication module adopts a 5G communication module; as shown in fig. 2, a data link of the 5G communication module establishes communication connection with the road side unit RSU and the T-BOX by means of a 5G base station, collects data of a vehicle camera and a radar by the T-BOX through ethernet, packages the data, communicates the data through the 5G after packaging, transmits the data to the road side unit RSU, transmits the data to the cloud service platform for analysis after the road side unit RSU receives the data, and extracts an image key value. The longitude and latitude information uploaded by the TBOX is obtained by receiving satellite data through a GNSS antenna, is uniformly converted according to a WGS84 geodetic coordinate system in 1984 and is uploaded to a cloud service platform, and the satellite positioning data is uploaded to the cloud service platform through a T-BOX communication module; the cloud service platform feeds the satellite positioning data back to the T-BOX communication module in real time after carrying out feature extraction comparison on the feature value of the image acquired by the vehicle-mounted camera and the high-definition satellite map and the positioning point uploaded by the satellite positioning data by the T-BOX communication module; and feeding back the satellite positioning data to a sound host machine through an Ethernet by a T-BOX communication module, and correcting the vehicle positioning at high precision by the sound host machine.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (3)
1. A5G-combined high-precision vehicle positioning method is characterized by comprising the following steps:
after acquiring satellite positioning data, a vehicle-mounted GNSS antenna sends the satellite positioning data to a T-BOX communication module, wherein the T-BOX communication module adopts a 5G communication module; the T-BOX communication module uploads the satellite positioning data to a cloud service platform; the cloud service platform feeds the satellite positioning data back to the T-BOX communication module in real time after carrying out feature extraction comparison on the feature value of the image acquired by the vehicle-mounted camera and the high-definition satellite map and the positioning point uploaded by the satellite positioning data by the T-BOX communication module; and feeding back the satellite positioning data to a sound host machine through an Ethernet by a T-BOX communication module, and correcting the vehicle positioning at high precision by the sound host machine.
2. The 5G-combined high-precision vehicle positioning method according to claim 1, wherein a data link of the 5G communication module is in communication connection with a Road Side Unit (RSU) and a T-BOX through a 5G base station, data of a vehicle camera and a radar are collected by the T-BOX through an Ethernet and packed, the data are transmitted to the RSU through 5G communication after being packed, and the RSU receives the data and then transmits the data to a cloud service platform for analysis, so that an image key value is extracted.
3. The 5G-combined high-precision vehicle positioning method as claimed in claim 1, wherein the T-BOX uploads satellite positioning data which is converted uniformly according to a WGS84 geodetic coordinate system of 1984 and then uploaded to a cloud service platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210707446.2A CN115113253A (en) | 2022-06-21 | 2022-06-21 | High-precision vehicle positioning method combined with 5G |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210707446.2A CN115113253A (en) | 2022-06-21 | 2022-06-21 | High-precision vehicle positioning method combined with 5G |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115113253A true CN115113253A (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210707446.2A Pending CN115113253A (en) | 2022-06-21 | 2022-06-21 | High-precision vehicle positioning method combined with 5G |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115113253A (en) |
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2022
- 2022-06-21 CN CN202210707446.2A patent/CN115113253A/en active Pending
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