Unmanned Vehicle Path Generation for Construction Sections
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Solution Overview
Problem
Unmanned vehicles struggle to navigate construction sections with complex road conditions due to pre-stored navigation maps that cannot adapt to real-time road conditions, leading to difficulties in smoothly passing through these areas.
Innovation Solution
A method and device that detect real-time obstacle information, determine accessible areas, and generate driving paths using a combination of modules for feature information acquisition, accessible area determination, terminal road point determination, and path generation, allowing the vehicle to adapt to real-time road conditions by identifying obstacles and determining safe passage points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pre-stored navigation maps are used to generate driving paths, then the path generation process is simple and fast, but the generated paths cannot adapt to real-time road conditions in construction sections
Solution Approach 1:
The patent implements dynamic path generation by transitioning from static pre-stored navigation maps to real-time obstacle detection and accessible area calculation. The system dynamically adjusts the accessible area based on detected obstacle information and generates paths adaptively according to current road conditions, making the path generation process flexible and responsive to changing environments.
Solution Approach 2:
The unmanned vehicle performs self-navigation by autonomously detecting obstacles, calculating accessible areas, and generating its own driving path without relying on pre-stored navigation maps. The vehicle's control device independently completes the entire path generation process based on real-time environmental perception, enabling self-service navigation in construction sections.
2Reliability
If real-time obstacle detection and accessible area determination are implemented, then path adaptability to construction sections is improved, but computational complexity and processing time increase
Solution Approach 1:
The patent segments the construction section into discrete road points and determines accessibility for each point based on obstacle information. By dividing the complex path generation problem into smaller sub-problems (evaluating each road point's accessibility), the system achieves accurate path planning while maintaining computational efficiency through modular processing.
Solution Approach 2:
The system performs path generation only for the relevant accessible area within the construction section rather than processing the entire navigation map. By focusing computational resources on determining accessibility of road points within the detected accessible area, the system achieves high path accuracy while reducing unnecessary computational overhead and processing time.
Data Source
AI summary
Provide are a method and device for generating a path of an unmanned vehicle on a construction section. The method includes: when detecting a construction section, detected obstacle information is acquired; a current accessible area of the construction section is determined according to the type and position information of the obstacle, and each road point included in the current accessible area is determined; a terminal road point of a target driving path is determined according to the current accessible area; a current location of a vehicle is taken as a start road point, path search is performed in the road points included in the current accessible area according to the start road point and the terminal road point, and passing road points of the target driving path in the construction section are determined; and a target driving path is generated according to the start road point, the passing road points and the terminal road point.