Recharging method for mobile robot and mobile robot
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Solution Overview
Problem
Current recharging methods for mobile robots, particularly cleaning robots, face challenges in aligning and successfully charging due to the lack of detection devices at the rear end, leading to a low success rate and increased recharging time.
Innovation Solution
A recharging method that involves receiving a recharging signal, moving forward to align with the charging station, performing a U-turn when the front end is aligned, and then moving backward to align with the charging pole piece, utilizing infrared and ultrasonic sensors along with a gyroscope for accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile robot moves backward for recharging, then the recharging operation can be performed, but the robot fails to align and gets stuck when being recharged
Solution Approach 1:
The patent inverts the traditional recharging approach by having the robot move forward to align with the charging station first, then perform a U-turn to face the charging pole piece, rather than moving backward directly. This inversion of the movement sequence enables proper alignment while maintaining the recharging function.
Solution Approach 2:
The patent implements preliminary alignment action by having the robot move forward to position its front end aligned with the charging station before performing the U-turn operation. This preliminary positioning ensures that the subsequent backward movement will result in correct alignment with the charging pole piece, preventing getting stuck.
2Productivity
If the robot uses traditional recharging control methods, then the system complexity is low, but the recharging time is increased and accuracy is reduced
Solution Approach 1:
The patent employs feedback mechanisms through infrared sensors and gyroscopes to detect the robot's position and orientation relative to the charging station. The control system continuously monitors alignment status and adjusts the U-turn operation and backward movement accordingly, enabling accurate and efficient recharging through closed-loop control.
Solution Approach 2:
The patent replaces simple mechanical movement control with a more sophisticated control system that uses infrared signal reception and gyroscope-based orientation detection. This substitution of mechanical intuition with sensor-based feedback and computational control enables precise alignment and faster recharging, accepting increased system complexity as a trade-off for improved productivity.
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
This method improves the accuracy of recharging control, reduces recharging time, and enhances the success rate by ensuring proper alignment with the charging pole piece, thereby improving user experience.
Implementation Method 1
receiving a recharging signal transmitted by a charging station
Implementation Method 2
utilizing infrared and ultrasonic sensors along with a gyroscope for accurate positioning
Data Source
AI summary
A recharging method for a mobile robot includes: receiving a recharging signal transmitted by a charging station when the mobile robot is in a recharging working state; moving forward toward the charging station by the mobile robot according to the recharging signal; performing a U-turn operation by the mobile robot when the mobile robot determines that a front end of the mobile robot is aligned with a position of the charging station; and moving backward along the direction approaching the charging station to move to the position where the pole piece of the charging station is located by the mobile robot.