CN110673184A - High-precision positioning system and method based on vehicle - Google Patents
High-precision positioning system and method based on vehicle Download PDFInfo
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- CN110673184A CN110673184A CN201910835632.2A CN201910835632A CN110673184A CN 110673184 A CN110673184 A CN 110673184A CN 201910835632 A CN201910835632 A CN 201910835632A CN 110673184 A CN110673184 A CN 110673184A
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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
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
Abstract
The invention discloses a high-precision positioning system and a high-precision positioning method based on a vehicle, wherein the system comprises a satellite positioning system, vehicle-mounted positioning equipment and a multi-position searching base station; the satellite positioning system is used for carrying out satellite positioning on the vehicle-mounted positioning equipment; the multi-searching-position base station is used for providing a multi-searching SDK function interface for data correction for the vehicle-mounted positioning equipment, correcting basic positioning information input by the multi-searching SDK function interface to obtain high-precision positioning information, and feeding the high-precision positioning information back to the vehicle-mounted positioning equipment through a data feedback interface; the vehicle-mounted positioning equipment is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle, transmitting the basic information of the vehicle to the thousand-searching-position base station, and receiving high-precision positioning information corrected by the thousand-searching-position base station. The invention effectively improves the positioning precision of the vehicle and can adapt to the positioning requirements of different scenes.
Description
Technical Field
The invention relates to vehicle positioning, in particular to a high-precision positioning system and method based on a vehicle.
Background
With the development of science and technology and the continuous progress of the social life level, vehicles become essential transportation means in the life of people, and great convenience is provided for the traveling of people. At present, the positioning data of the vehicle-mounted terminal depends on a positioning module to receive a positioning satellite signal, and then current position information of a vehicle, such as longitude and latitude, altitude, direction and speed, is calculated and output.
Common satellite positioning systems include a united states satellite positioning system (GPS), a chinese beidou positioning system (GB), and a russian GLONASS (GLONASS), and positioning accuracy of these positioning systems is common, and errors are measured in meters or more, which can meet common positioning requirements, but some special scenes require positioning accuracy up to a centimeter level, such as requiring a vehicle to be positioned on a certain lane to determine the responsibility of an accident, and the common accuracy is difficult to meet the requirements.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-precision positioning system and method based on a vehicle, which can effectively improve the positioning precision of the vehicle and can meet the positioning requirements of different scenes.
The purpose of the invention is realized by the following technical scheme: a high-precision positioning system based on a vehicle comprises a satellite positioning system, vehicle-mounted positioning equipment and a multi-position searching base station;
the satellite positioning system is used for carrying out satellite positioning on the vehicle-mounted positioning equipment;
the multi-searching-position base station is used for providing a multi-searching SDK function interface for data correction for the vehicle-mounted positioning equipment, correcting basic positioning information input by the multi-searching SDK function interface to obtain high-precision positioning information, and feeding the high-precision positioning information back to the vehicle-mounted positioning equipment through a data feedback interface;
the vehicle-mounted positioning equipment is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle, transmitting the basic information of the vehicle to the thousand-searching-position base station, and receiving high-precision positioning information corrected by the thousand-searching-position base station.
Preferably, the satellite positioning system includes, but is not limited to, a GPS positioning system, a beidou positioning system, and a GLONASS positioning system.
The vehicle-mounted positioning equipment comprises a satellite positioning module, an MCU module and a data correction module; the MCU module is respectively connected with the satellite positioning module and the data correction module; the satellite positioning module is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle and outputting the basic positioning information to the MCU module, wherein the basic positioning information of the vehicle is output by adopting standard nmea data; the MCU module is used for transmitting the basic positioning information of the vehicle to the data correction module and receiving the correction data returned by the data correction module as the final positioning information to be output to the outside; and the data correction module is used for transmitting the basic positioning information of the vehicle to the searching positioning base station through the searching SDK function interface, receiving the high-precision positioning information fed back by the searching positioning base station as correction data and transmitting the correction data to the MCU module.
Preferably, the satellite positioning module corresponds to a satellite positioning system, including but not limited to a GPS positioning module, a beidou positioning module, and a GLONASS positioning module. And the searching SDK function interface and the data feedback interface are both API interfaces.
A positioning method of a high-precision positioning system based on a vehicle comprises the following steps:
s1, vehicle-mounted positioning equipment interacts with a satellite positioning system to acquire basic positioning information of a vehicle;
s2, the vehicle-mounted positioning equipment transmits the basic information to a thousand-seek position base station through a thousand-seek SDK function interface;
s3, the multi-searching-position base station corrects the basic positioning information to obtain high-precision positioning information, and the high-precision positioning information is fed back to the vehicle-mounted positioning equipment through a data feedback interface;
and S4, the vehicle-mounted positioning equipment receives high-precision positioning information fed back by the searching and positioning base station and outputs the high-precision positioning information serving as final positioning information of the vehicle.
The invention has the beneficial effects that: the invention effectively improves the positioning precision of the vehicle and can adapt to the positioning requirements of different scenes.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention;
FIG. 2 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
The invention corrects the positioning by the thousand-searching position service, thereby enabling the positioning system to output position information of centimeter level or even millimeter level, because the thousand-searching position service establishes a satellite reference station at a known point, calculates correction information of various errors by continuous observation and sends the correction information to our positioning equipment, and the accuracy of the corrected positioning equipment can be greatly improved. The positioning equipment firstly connects the thousand searching position service base stations, then sends basic position information to the thousand searching position service base stations, the base stations start to calculate and compare and calibrate after receiving the basic position information, then returns high-precision positioning information to the positioning equipment every second, and at the moment, the positioning equipment receives the high-precision positioning information which is calibrated, so that the high-precision positioning of the vehicle is realized:
as shown in fig. 1, a high-precision positioning system based on a vehicle includes a satellite positioning system, a vehicle-mounted positioning device and a multi-position base station;
the satellite positioning system is used for carrying out satellite positioning on the vehicle-mounted positioning equipment;
the multi-searching-position base station is used for providing a multi-searching SDK function interface for data correction for the vehicle-mounted positioning equipment, correcting basic positioning information input by the multi-searching SDK function interface to obtain high-precision positioning information, and feeding the high-precision positioning information back to the vehicle-mounted positioning equipment through a data feedback interface;
the vehicle-mounted positioning equipment is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle, transmitting the basic information of the vehicle to the thousand-searching-position base station, and receiving high-precision positioning information corrected by the thousand-searching-position base station.
In embodiments of the present application, the satellite positioning system includes, but is not limited to, the GPS positioning system, the beidou positioning system, and the GLONASS positioning system; the vehicle-mounted positioning equipment comprises a satellite positioning module, an MCU module and a data correction module; the MCU module is respectively connected with the satellite positioning module and the data correction module; the satellite positioning module is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle and outputting the basic positioning information to the MCU module, wherein the basic positioning information of the vehicle is output by adopting standard nmea data; the MCU module is used for transmitting the basic positioning information of the vehicle to the data correction module and receiving the correction data returned by the data correction module as the final positioning information to be output to the outside; and the data correction module is used for transmitting the basic positioning information of the vehicle to the searching positioning base station through the searching SDK function interface, receiving the high-precision positioning information fed back by the searching positioning base station as correction data and transmitting the correction data to the MCU module. The satellite positioning module corresponds to a satellite positioning system, and includes but is not limited to a GPS positioning module, a beidou positioning module, and a GLONASS positioning module. And the searching SDK function interface and the data feedback interface are both API interfaces.
As shown in fig. 2, a positioning method of a high-precision positioning system based on a vehicle includes the following steps:
s1, vehicle-mounted positioning equipment interacts with a satellite positioning system to acquire basic positioning information of a vehicle;
s2, the vehicle-mounted positioning equipment transmits the basic information to a thousand-seek position base station through a thousand-seek SDK function interface;
s3, the multi-searching-position base station corrects the basic positioning information to obtain high-precision positioning information, and the high-precision positioning information is fed back to the vehicle-mounted positioning equipment through a data feedback interface;
s4, the vehicle-mounted positioning equipment receives high-precision positioning information fed back by the searching positioning base station and outputs the high-precision positioning information serving as final positioning information of the vehicle; in the embodiment of the application, the final positioning data obtained by the vehicle-mounted positioning equipment can be output to a vehicle-mounted processor and also can be transmitted to a vehicle monitoring center through a wireless module.
It is to be understood that the foregoing is not to be construed as limiting the invention to the forms disclosed herein, but is to be construed not as excluding other embodiments and from consideration of the specification and/or practice of the invention as may be practiced in other combinations, modifications, and environments and as may be modified within the scope of the concepts described herein by applying the teachings or the teachings disclosed herein. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A high accuracy positioning system based on vehicle which characterized in that: the system comprises a satellite positioning system, vehicle-mounted positioning equipment and a multi-position searching base station;
the satellite positioning system is used for carrying out satellite positioning on the vehicle-mounted positioning equipment;
the multi-searching-position base station is used for providing a multi-searching SDK function interface for data correction for the vehicle-mounted positioning equipment, correcting basic positioning information input by the multi-searching SDK function interface to obtain high-precision positioning information, and feeding the high-precision positioning information back to the vehicle-mounted positioning equipment through a data feedback interface;
the vehicle-mounted positioning equipment is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle, transmitting the basic information of the vehicle to the thousand-searching-position base station, and receiving high-precision positioning information corrected by the thousand-searching-position base station.
2. A vehicle based high precision positioning system according to claim 1, characterized by: the satellite positioning system includes, but is not limited to, a GPS positioning system, a Beidou positioning system, and a GLONASS positioning system.
3. A vehicle based high precision positioning system according to claim 1, characterized by: the vehicle-mounted positioning equipment comprises a satellite positioning module, an MCU module and a data correction module; the MCU module is respectively connected with the satellite positioning module and the data correction module;
the satellite positioning module is used for interacting with a satellite positioning system, acquiring basic positioning information of the vehicle and outputting the basic positioning information to the MCU module, wherein the basic positioning information of the vehicle is output by adopting standard nmea data;
the MCU module is used for transmitting the basic positioning information of the vehicle to the data correction module and receiving the correction data returned by the data correction module as the final positioning information to be output to the outside;
and the data correction module is used for transmitting the basic positioning information of the vehicle to the searching positioning base station through the searching SDK function interface, receiving the high-precision positioning information fed back by the searching positioning base station as correction data and transmitting the correction data to the MCU module.
4. A vehicle based high precision positioning system according to claim 3, characterized in that: the satellite positioning module corresponds to a satellite positioning system, and includes but is not limited to a GPS positioning module, a beidou positioning module, and a GLONASS positioning module.
5. A vehicle based high precision positioning system according to claim 3, characterized in that: and the searching SDK function interface and the data feedback interface are both API interfaces.
6. The method of any one of claims 1 ~ 5, comprising the steps of:
s1, vehicle-mounted positioning equipment interacts with a satellite positioning system to acquire basic positioning information of a vehicle;
s2, the vehicle-mounted positioning equipment transmits the basic information to a thousand-seek position base station through a thousand-seek SDK function interface;
s3, the multi-searching-position base station corrects the basic positioning information to obtain high-precision positioning information, and the high-precision positioning information is fed back to the vehicle-mounted positioning equipment through a data feedback interface;
and S4, the vehicle-mounted positioning equipment receives high-precision positioning information fed back by the searching and positioning base station and outputs the high-precision positioning information serving as final positioning information of the vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910835632.2A CN110673184A (en) | 2019-09-05 | 2019-09-05 | High-precision positioning system and method based on vehicle |
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| CN201910835632.2A CN110673184A (en) | 2019-09-05 | 2019-09-05 | High-precision positioning system and method based on vehicle |
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| CN110673184A true CN110673184A (en) | 2020-01-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759282A (en) * | 2021-09-09 | 2021-12-07 | 四川省东宇信息技术有限责任公司 | Grounding wire monitoring system based on Beidou differential positioning |
| CN113900132A (en) * | 2021-09-16 | 2022-01-07 | 北京百度网讯科技有限公司 | Positioning method and device, vehicle-mounted equipment, terminal equipment and positioning system |
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| CN104977596A (en) * | 2015-06-08 | 2015-10-14 | 深圳北斗应用技术研究院有限公司 | High-accuracy position correction positioning system based on cloud computing |
| CN107918138A (en) * | 2017-11-28 | 2018-04-17 | 千寻位置网络有限公司 | " cloud+end " comprehensive positioning terminal positioner and Differential positioning method |
| CN108333614A (en) * | 2017-12-25 | 2018-07-27 | 中铁第四勘察设计院集团有限公司 | The BEI-DOU position system and its localization method of track automatic measurement vehicle |
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2019
- 2019-09-05 CN CN201910835632.2A patent/CN110673184A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004095055A1 (en) * | 2003-04-17 | 2004-11-04 | Secretary Of State For Defence | Correction of troposphere induced errors in global positioning systems |
| CN104977596A (en) * | 2015-06-08 | 2015-10-14 | 深圳北斗应用技术研究院有限公司 | High-accuracy position correction positioning system based on cloud computing |
| CN107918138A (en) * | 2017-11-28 | 2018-04-17 | 千寻位置网络有限公司 | " cloud+end " comprehensive positioning terminal positioner and Differential positioning method |
| CN108333614A (en) * | 2017-12-25 | 2018-07-27 | 中铁第四勘察设计院集团有限公司 | The BEI-DOU position system and its localization method of track automatic measurement vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759282A (en) * | 2021-09-09 | 2021-12-07 | 四川省东宇信息技术有限责任公司 | Grounding wire monitoring system based on Beidou differential positioning |
| CN113900132A (en) * | 2021-09-16 | 2022-01-07 | 北京百度网讯科技有限公司 | Positioning method and device, vehicle-mounted equipment, terminal equipment and positioning system |
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Application publication date: 20200110 |