Cleaning Robot Main Brush Speed Control to Reduce Motor Overload
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Solution Overview
Problem
Cleaning robots face inefficiencies due to changes in rotating speed of their main brushes, which can be affected by factors like increased friction or dust, leading to suboptimal cleaning performance and reduced operational time.
Innovation Solution
A method and system for dynamically adjusting the rotating speed of the main brush based on real-time feedback from sensors, using a controller to compare the current speed with predetermined thresholds and adjust the motor output to maintain optimal cleaning efficiency and extend the robot's operational time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the main brush rotates at high speed to improve cleaning efficiency, then cleaning productivity increases, but power consumption increases and motor service life decreases
Solution Approach 1:
The patent implements dynamic speed adjustment of the main brush based on real-time detection of operating conditions. The controller modifies the rotating speed according to detected parameters such as motor current, brush contact pressure, or surface characteristics, allowing the system to optimize between cleaning efficiency and power consumption rather than operating at constant high speed
Solution Approach 2:
The patent employs a feedback control mechanism where sensors detect the actual operating state of the main brush and motor, and the controller adjusts the speed accordingly. This closed-loop system ensures the brush operates at optimal speed for current conditions, preventing excessive power consumption while maintaining adequate cleaning performance
2Productivity
If the main brush rotates at high speed to improve cleaning efficiency, then cleaning productivity increases, but the service life of the electric motor decreases
Solution Approach 1:
The system dynamically adjusts motor operating speed based on actual cleaning needs and motor load conditions. By reducing speed when full power is not required, the motor operates within safer stress limits, reducing wear and extending service life while maintaining adequate cleaning productivity
Solution Approach 2:
Through feedback from current sensors and controller monitoring, the system detects motor load conditions and adjusts speed to prevent overloading. This protective feedback mechanism ensures the motor operates within reliable parameters, extending its service life while maintaining cleaning efficiency
3Duration of action of moving object
If the main brush speed is not regulated, then the cleaning robot can operate continuously, but the cleaning effect degrades when speed becomes excessively high or low
Solution Approach 1:
The system maintains dynamic speed regulation throughout operation, adjusting the main brush speed in real-time based on detected conditions. This ensures consistent cleaning effect is maintained throughout the entire operation period, preventing degradation that would occur with unregulated speed variations
Solution Approach 2:
The feedback control system continuously monitors operating conditions and adjusts speed to maintain optimal cleaning performance. This ensures consistent cleaning effect throughout extended operation periods by compensating for speed variations caused by load changes, surface variations, or motor characteristics
Data Source
AI summary
The present disclosure provides a method for controlling a rotating speed, a cleaning robot, and a storage medium. The method includes: obtaining the rotating speed of the main brush when the main brush cleans a surface-to-be-cleaned; comparing the rotating speed of the main brush with a predetermined rotating speed; decreasing the rotating speed when the rotating speed is greater than the predetermined rotating speed; or, increasing the rotating speed when the rotating speed is less than the predetermined rotating speed. As such, over-load of an electric motor of the main brush can be avoided, thereby extending the service life of the electric motor. In the meantime, the power consumption by the cleaning robot can be reduced, thereby extending the operation time of the cleaning robot. Furthermore, a satisfying cleaning effect of the cleaning robot can be maintained.