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A driving route trajectory generation system for unmanned low-speed vehicles

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: 2021-02-02
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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  • A driving route trajectory generation system for unmanned low-speed vehicles
  • A driving route trajectory generation system for unmanned low-speed vehicles

Examples

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Embodiment 1

[0029] like figure 1 As shown, the present 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; an optimization module 2 for The stored driving route is optimized, and the corrected driving route is generated and stored; the storage module 3 is used for storing the driving route and the corrected 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, and record the positioning coordinates to generate a driving route. The invention patent combines various existing navigation and positioning systems, such as GPS, inertial navigation, etc., to accurately locate the route of the unmanned vehicle for accurate record storage.

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

Embodiment 2

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

[0041]The update module 5 keeps the open state when the vehicle is running, and judges whether the newly generated route of the vehicle is the corrected driving route stored in the route storehouse (in the cloud server 4 or the storage module 3), if so, then the driving route around the driving route The road information is supplemented and replaced; if not, then it is judged as a new route, which is stored and last time in the storage module 3. The specific steps are: the newly generated vehicle driving route is compared with the existing information of the road section in the storage mod...

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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 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, the research on driverless cars is getting more and more in-depth, so the control of driverless cars is becoming more and more important. In the future life, unmanned low-speed working vehicles will gradually replace road workers, such as road cleaners and sprinklers. 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. Contents of the invention [0003] The object of the present invention is to provide a system for generating route data of unmanned vehicles i...

Claims

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Application Information

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