Control method and apparatus for automatic cleaning device, automatic cleaning device, and storage medium
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Solution Overview
Problem
Automatic cleaning devices often collide with obstacles during movement, causing damage to the device or the obstacles, which is a common issue in existing technologies.
Innovation Solution
The method involves detecting obstacles ahead of the cleaning device, acquiring their lengths, and controlling the movement path based on these lengths to prevent collisions by either following a tangential or arc path, adjusting rotation angles and speeds to ensure the cleaning assembly does not interfere with obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the automatic cleaning device moves along a straight path to improve cleaning efficiency, then productivity increases, but the device may collide with obstacles causing damage
Solution Approach 1:
The patent applies preliminary action by detecting obstacles ahead of the cleaning device before collision occurs. The detection unit identifies obstacles in advance, and the control unit pre-adjusts the movement path based on obstacle length comparisons, preventing collision before it happens while maintaining efficient cleaning operation
Solution Approach 2:
The patent implements feedback by continuously monitoring obstacle detection results and adjusting the movement path accordingly. The control unit receives real-time feedback from the detection unit about obstacle presence and length, then dynamically modifies the cleaning path to avoid collisions while optimizing cleaning coverage
2Productivity
If the device follows a tangential path for short obstacles to maintain cleaning coverage, then productivity is preserved, but the cleaning assembly may interfere with the obstacle
Solution Approach 1:
The patent applies local quality by differentiating obstacle handling based on local conditions - specifically obstacle length. For short obstacles (length ≤ threshold), the device uses tangential paths with adjusted rotation angles to minimize interference. For long obstacles, it uses arc paths. This localized adaptation ensures optimal cleaning coverage while preventing harmful interference with obstacles
Solution Approach 2:
The patent changes parameters (rotation angle, movement path) based on obstacle characteristics. When a short obstacle is detected, the control unit adjusts the rotation angle to a smaller value and selects a tangential path, thereby reducing cleaning assembly interference while maintaining adequate cleaning coverage
3Reliability
If the device follows an arc path for long obstacles to avoid collision, then reliability improves, but cleaning coverage area decreases
Solution Approach 1:
The patent applies dynamics by making the movement path adaptive rather than fixed. The control unit dynamically selects between tangential and arc paths based on real-time obstacle detection and length measurement. This dynamic adjustment ensures collision avoidance for long obstacles while minimizing the impact on cleaning coverage area
Data Source
AI summary
A control method for an automatic cleaning device includes detecting a second obstacle ahead of the automatic cleaning device during movement of the automatic cleaning device along a first obstacle, acquiring a length of the second obstacle in response to the second obstacle being present ahead of the automatic cleaning device, and controlling a movement path of the automatic cleaning device based on the length of the second obstacle.