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Driving route trajectory generating system for unmanned low-speed vehicle

A trajectory generation and route technology, applied to road network navigators, etc., can solve the problems of route accuracy cannot be guaranteed and navigation accuracy is low, so as to ensure real-time matching, save data storage space, ensure accuracy and reliability sexual effect

Active Publication Date: 2019-05-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-speed working vehicles often work according to the preset route. However, due to the low accuracy of conventional civilian navigation, the accuracy of the route of unmanned vehicles cannot be guaranteed, and there is no guarantee for low-speed working vehicles driving fixed routes. A complete set of route collection, recording and generation methods

Method used

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  • Driving route trajectory generating system for unmanned low-speed vehicle
  • Driving route trajectory generating system for unmanned low-speed vehicle

Examples

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Embodiment 1

[0029] Such as figure 1 As shown, this embodiment provides a driving route trajectory generation system for unmanned low-speed vehicles, including: a recording module 1: used to record the driving route during driving and store it; and an optimization module 2 for checking The stored driving route is optimized, and the revised driving route is generated and stored; the storage module 3 is used to store the driving route and the revised driving route.

[0030] 1. Recording module

[0031] The recording module 1 includes a navigation unit and a vision unit. The navigation unit is used to locate the coordinates, record the positioning coordinates, and generate a driving route. The patent of the invention combines multiple existing navigation and positioning systems, such as GPS, inertial navigation, etc., to accurately locate the route of the unmanned vehicle for accurate recording and storage.

[0032] The vision unit is used to collect road information around the route, generate cha...

Embodiment 2

[0040] Such as figure 2 As shown, this embodiment provides a driving route trajectory generation system for an unmanned low-speed vehicle, which includes a recording module 1, an optimization module 2, a storage module 3, and a cloud server 4, the functions and results of which are the same as those of the implementation. This embodiment also includes an update module 5 connected to the storage module 3.

[0041] The update module 5 stays on when the vehicle is running, and determines whether the newly generated route of the vehicle is the corrected driving route stored in the route database (in the cloud server 4 or the storage module 3). If so, then the route around the driving route The road information is supplemented and replaced; if not, it is determined as a new route, and stored in the storage module 3 and last time. The specific steps are: the newly generated vehicle travel route is compared with the information of the road segment already in the storage module 3 (long...

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Abstract

The invention relates to a driving route trajectory generating system for an unmanned low-speed vehicle. The driving route trajectory generating system comprises a recording module, an optimizing module and a storage module, wherein the recording module is used for recording and storing a driving route in a driving process; the optimizing module is used for optimizing the stored driving route, compensating for disconnected positions, sharp points or unsmooth points in each segment of trajectory, generating a corrected driving route, and storing the corrected driving route; and the storage module is used for storing the driving route and the corrected driving route. Compared with the prior art, the driving route trajectory generating system has the advantages that, in the driving process ofthe unmanned low-speed vehicle, the generation and optimization of the driving route are realized synchronously through the recording module and the optimizing module, the corrected driving route isstored through the storage module, and the stored corrected driving route can be directly called by the vehicle in later driving. The driving route trajectory generating system is applied to a novel cruise type unmanned driving method.

Description

Technical field [0001] The present invention relates to the field of unmanned vehicles, in particular to a driving route trajectory generation system for unmanned low-speed vehicles. Background technique [0002] At present, research on driverless cars is becoming more and more in-depth. Therefore, the control of driverless cars is becoming more and more important. In the future life, unmanned low-speed work vehicles will gradually replace pavement workers, such as pavement cleaners and sprinklers. Low-speed working vehicles often follow a preset route to work. However, due to the low accuracy of conventional civil navigation, the accuracy of the route of unmanned vehicles cannot be guaranteed, and there is nothing for low-speed working vehicles that drive a fixed route. A complete set of methods for route collection, recording and generation. Summary of the invention [0003] The purpose of the present invention is to provide a generation system for unmanned vehicle route data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34
Inventor 周爱国施金磊曾智杰
Owner TONGJI UNIV
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