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Trajectory planning method and system for remote control

A technology of trajectory planning and remote control, applied in the directions of measuring devices, instruments, surveying and navigation, etc., to achieve the effect of improving traffic efficiency

Active Publication Date: 2019-12-17
重庆元韩汽车技术设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the following disadvantages: the planned path is planned before driving, and the state represented by the planned path is the state at the current time. When the vehicle travels to a certain road section, the state of the mark in the planned path may have changed. Originally A clear road segment becomes congested, and at this time the vehicle has already traveled to the road segment, so that the congested road segment cannot be avoided

Method used

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  • Trajectory planning method and system for remote control

Examples

Experimental program
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Embodiment 1

[0038] Trajectory planning system for remote control, as attached figure 1 As shown, it includes a path judgment subsystem, a path reference subsystem, a path detection subsystem, a vehicle terminal, and a database. The database is preset with a national map, a distance threshold, and a planned path. The planned path can be generated by an existing navigation system. After the navigation system generates the planned path, it can be stored in the database or directly sent to the path judgment subsystem. In this embodiment, the existing navigation system generates the planned path After that, the planned path is directly sent to the path judgment subsystem. The use of a navigation system to generate a planned route belongs to the prior art, so details will not be repeated here.

[0039] Path judgment subsystem, including:

[0040] The emergency marking module is used to receive the planned path. The planned path includes the starting point and the ending point of the path. The p...

Embodiment 2

[0059] The difference between this embodiment and Embodiment 1 is that this embodiment is used for the trajectory planning system of remote control, as attached figure 2 As shown, the path planning subsystem is also included. The path detection subsystem also includes a speed detection module and a driving prediction module.

[0060] The vehicle terminal is used to obtain the starting point and end point of the route specified by the driver, and send the starting point and end point of the route to the path planning subsystem.

[0061] Path planning subsystem, including:

[0062] The path planning module is used to receive the path starting point and the path end point, obtain the national map from the database, and generate several planning paths according to the path starting point, path end point and the national map.

[0063] The route marking module is used to detect the planned route through the Internet of Vehicles technology, mark the section of the planned route wh...

Embodiment 3

[0083] The difference between this embodiment and Embodiment 2 is that in this embodiment, the trajectory planning system for remote control also includes a detection terminal.

[0084] Detection terminals include:

[0085] The first detection assembly includes a first detector, a second detector and a first controller. The first detector and the second detector are respectively installed on the upper end connection ring and the lower end connection ring of the automobile shock absorber. The first control The detector is used to calculate the relative distance between the first detector and the second detector according to the signals of the first detector and the second detector, calculate the distance difference according to the adjacent relative distance, and generate Jitter factor. In this embodiment, the first detector and the second detector are preferably the transmitting end and the receiving end of the laser ranging, and the transmitting end of the laser ranging is i...

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Abstract

The invention relates to the technical field of path planning, in particular to a trajectory planning method and system for remote control. The method comprises the following steps: path determination, by detecting a planned path, and judging whether the planned path has road narrowing and traffic flow intersection point; path reference, in which if a road narrowing and traffic flow intersection point exists in the planned path, taking the path where the road narrowing and the traffic flow intersection point as a detection path, and re-planning the detection path to generate an emergency path;and path detection, by detecting the detection path before the vehicle reaching the intersection of the emergency path and the planned path, and replacing the emergency path with the detection path to serve as a new planned path when the detection path is jammed. By the adoption of the scheme, congested roads can be avoided in time, and traffic efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of path planning, in particular to a path planning method and system for remote control. Background technique [0002] Highways play an important role in the modern transportation system with the characteristics and advantages of fast, safe and comfortable. Through highways, the connection between cities can be promoted, the economic development along the road can be promoted, and its social benefits can be effectively exerted. However, with the increase in the number of family cars, the road traffic situation is getting worse day by day, which makes the phenomenon of traffic congestion occur from time to time, thus affecting the traffic efficiency. In the existing route planning system, in order to avoid vehicles driving to congested roads, when planning a route, the congested road section will be marked on the planned route, so that the driver can choose a smoother planned route for driving. However, it h...

Claims

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Application Information

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IPC IPC(8): G01C21/34
CPCG01C21/3492
Inventor 杨辉
Owner 重庆元韩汽车技术设计研究院有限公司
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