阅读说明：本技术 一种基于车辆的高精度定位系统及方法 (High-precision positioning system and method based on vehicle ) 是由 王春波 杨代云 于 2019-09-05 设计创作，主要内容包括：本发明公开了一种基于车辆的高精度定位系统及方法,所述系统包括卫星定位系统、车载定位设备和千寻位置基站；所述卫星定位系统,用于对车载定位设备进行卫星定位；所述千寻位置基站,用于向车载定位设备提供数据修正的千寻SDK函数接口,并对千寻SDK函数接口输入的基本定位信息进行修正,得到高精度定位信息,通过数据反馈接口反馈给车载定位设备；所述车载定位设备,用于与卫星定位系统交互,获取车辆的基本定位信息,并将车辆的基本信息传输给千寻位置基站,接收千寻位置基站修正后的高精度定位信息。本发明有效提高车辆的定位精度,能够适应于不同场景的定位需求。(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.)

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.

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.