Autonomous Charging Positioning With Long-Range Navigation Switching
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Solution Overview
Problem
Existing positioning technologies using infrared, ultrasound, or laser for autonomous charging face limitations in accuracy and efficiency, particularly at long and short distances, leading to inefficient and inaccurate determination of charging apparatus positions.
Innovation Solution
A positioning control method and apparatus utilizing a laser radar with a distance determination component, long distance navigation, and short distance accurate recognition based on principal component analysis to rapidly and accurately identify charging apparatus positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If infrared or ultrasound positioning technology is used, then the positioning system can operate at long distances, but the positioning accuracy deteriorates and detection time increases
Solution Approach 1:
The positioning process is segmented into two distinct phases: long-distance navigation phase and short-distance accurate recognition phase. Each phase uses the most appropriate positioning technology for its specific requirements, avoiding the use of inappropriate technologies and thus resolving the contradiction between detection distance and positioning accuracy.
Solution Approach 2:
The system dynamically switches between different positioning technologies based on the current distance to the charging apparatus. When the movable device is far from the target, infrared/ultrasound positioning is used for long-distance navigation; when approaching the target, the system transitions to laser radar for high-precision positioning, optimizing accuracy at each stage.
2Length of stationary object
If infrared or ultrasound positioning technology is used, then the positioning system can operate at long distances, but the positioning efficiency deteriorates due to continuous posture adjustment and multiple attempts
Solution Approach 1:
By dividing the positioning process into distinct phases with dedicated technologies, the system eliminates the need for continuous posture adjustment and multiple attempts. The long-distance phase handles coarse positioning efficiently, while the short-distance phase handles fine positioning, together resolving the efficiency problem.
Solution Approach 2:
The system performs preliminary long-distance navigation to bring the movable device close to the charging apparatus before initiating high-precision positioning. This preliminary action reduces the distance and time required for the final accurate positioning, significantly improving overall positioning efficiency.
3Speed
If laser radar is used for long distance positioning, then the positioning speed is improved, but the relative error increases in short distance region
Solution Approach 1:
The system dynamically selects the positioning technology based on distance. Laser radar is activated when the movable device is far from the charging apparatus to achieve fast positioning, and automatically switched to infrared/ultrasound positioning when approaching the target to ensure high accuracy, thus resolving the contradiction between speed and precision.
Solution Approach 2:
The system changes the operating parameters by switching between different positioning technologies according to distance parameters. This parameter-based selection ensures that the optimal technology is used for each distance range, achieving both fast positioning at long distances and high accuracy at short distances.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and accurate positioning of charging apparatuses at both long and short distances, improving positioning accuracy compared to prior methods, especially in short distance scenarios.
Implementation Method 1
a laser radar installed on the movable device emitting laser light to the charging apparatus
Data Source
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AI summary
The present disclosure relates to a positioning control method, a positioning control apparatus, an autonomous charging control apparatus, an autonomous charging control method, and an autonomous charging system. The positioning control apparatus includes: a distance determination component configured to determine whether a distance between a movable device and a target device is less than a first threshold; a long distance navigation component configured to guide, under a condition that the distance is not less than the first threshold, the movable device to move to the target device based on navigation; and a short distance accurate recognition component configured to recognize, under a condition that the distance is less than the first threshold, a position of the target device by a laser accurate recognition approach based on principal component analysis.