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High-precision positioning system for vehicle and vehicle

A positioning system, high-precision technology, applied in the field of navigation and positioning, can solve problems such as inability to output positioning information

Inactive Publication Date: 2019-10-08
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-precision positioning system for vehicles and the vehicle to solve the problem that the existing UWB positioning system cannot output positioning information when the vehicle is stationary
The beneficial effect is that the setting of at least two tag readers can provide more accurate positioning information, especially when the vehicle is stationary, it can output positioning information, which solves the problem that the existing UWB positioning system cannot output positioning information when the vehicle is stationary

Method used

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  • High-precision positioning system for vehicle and vehicle
  • High-precision positioning system for vehicle and vehicle
  • High-precision positioning system for vehicle and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 provides a vehicle, such as figure 1 As shown, the vehicle includes a high-precision positioning system for the vehicle, the system includes a controller and at least two tag readers, and the output terminals of each tag reader are connected to the controller, wherein each tag reader is preferably The output end of the controller is connected to the controller through the RS232 serial line communication.

[0030] The distances between the above-mentioned label readers are set. If the positioning system is applied to the vehicle, the corresponding labels can be set on the roadside. For places that are blocked, choose a suitable location, such as the lower surface of the elevated, pillars, trees, street lights, traffic lights, outer surfaces of high-rise buildings, bus stops, etc., and place a label every 5 meters or so. Each label has its own number. And it can output its own position coordinates, and each tag reader in the vehicle can effectively obtain th...

Embodiment 2

[0033] In Embodiment 2, an additional positioning module is added on the basis of Embodiment 1, so that the positioning method of the positioning system is more diverse, the scope of application is wider, and the positioning result is more accurate. Therefore, a high-precision positioning system for vehicles provided by Embodiment 2, such as figure 2 As shown, it also includes a GNSS satellite positioning module. The GNSS satellite positioning module includes a receiver and at least one GNSS satellite receiving antenna. The input end of the receiver is connected to each GNSS satellite receiving antenna, and the output end of the receiver is connected to the controller.

[0034]In Embodiment 2, the preferred GNSS satellite positioning module includes a first GNSS satellite receiving antenna and a second GNSS satellite receiving antenna, and the first GNSS satellite positioning module and the second GNSS satellite positioning module are connected to the receiver through two coax...

Embodiment 3

[0036] Present embodiment 3 is on the basis of embodiment 2, as image 3 As shown, the positioning work under special circumstances is realized through the added INS inertial positioning module, and the output terminal of the INS inertial positioning module is connected to the controller through RS232 serial port communication.

[0037] Among them, the INS inertial positioning module includes three accelerometers, three gyroscopes and two wheel speedometers, this part adopts the existing inertial positioning technology; in special cases, the data of the GNSS satellite positioning module is combined with the INS inertial positioning The high-frequency position, direction, and speed data of the system can output high-frequency centimeter-level positioning and orientation data for vehicle decision-making and planning after fusion through multi-order Kalman filtering.

[0038] like Figure 4 As shown, it is a working method of a high-precision positioning system for vehicles, and...

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Abstract

The invention relates to the technical field of navigation and positioning, in particular to a high-precision positioning system for a vehicle and a vehicle. The vehicle positioning system comprises acontroller and at least two tag readers, wherein the output end of each tag reader is connected with the controller; the tag readers are spaced apart by a set distance; each tag reader is configuredto obtain location information of at least three tags; and the controller calculates and obtains the location of each tag reader according to the obtained location information of each tag. As at leasttwo tag readers are arranged, the positioning information can be given more accurately, especially, the positioning information can be outputted when the vehicle is still, and the problem that the existing UWB positioning system cannot output positioning information when the vehicle is still can be solved.

Description

technical field [0001] The invention relates to the technical field of navigation and positioning, in particular to a high-precision positioning system for vehicles and vehicles. Background technique [0002] With the development of navigation and positioning technology, the high-precision positioning system composed of the existing GNSS global navigation satellite positioning system and INS inertial positioning system is extremely vulnerable to occlusion under typical urban bus road conditions such as under viaducts, in tunnels, tall buildings, and trees. and interference, leading to severe distortion or even loss of GNSS signals, resulting in the inability to correct the data of the INS inertial positioning system in time, and the accumulation of errors cannot be cleared in time, which eventually leads to serious distortion of positioning data, and the intelligent driving car cannot obtain accurate positioning and orientation information And there is danger. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/46G01S19/47G01S19/10
CPCG01S19/46G01S19/47G01S19/10
Inventor 闫孟洋
Owner ZHENGZHOU YUTONG BUS CO LTD
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