Cleaning Module Current Control for Mobile Robot Motor Overload
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile robots face challenges in safely managing overload and abnormal operations of their cleaning modules, particularly the main brush, due to varying floor environments, which can lead to motor damage and reduced lifespan from overcurrent and increased internal temperatures.
Innovation Solution
A mobile robot operation control method that measures current values from the cleaning module's motor, determines the state of the module, and adjusts the operation based on safety management control modes to prevent overload, abnormal stoppages, and jamming by controlling voltage and notifying errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mobile robot operates on deep carpet, then the cleaning module can effectively clean the carpet, but the motor experiences large load, increased current, and rapid temperature rise causing damage
Solution Approach 1:
The control apparatus performs preliminary detection of current values from the motor before damage occurs. By continuously monitoring current during operation, the system can identify abnormal current increases that indicate overload conditions, allowing preventive action to be taken before motor damage occurs.
Solution Approach 2:
The system implements feedback control by detecting motor current values and comparing them against threshold values. When the detected current exceeds the threshold, the control apparatus automatically reduces the rotation speed of the cleaning module, thereby reducing the load on the motor and preventing overheating and damage.
2Ease of operation
If the mobile robot moves in reverse direction of carpet texture, then the cleaning module may be damaged due to high load, but moving along the texture only applies low load
Solution Approach 1:
The system performs preliminary detection of current values that indicate high load conditions before actual damage occurs. By monitoring current during movement in reverse direction of carpet texture, the system can identify when excessive load is applied and take preventive action.
Solution Approach 2:
The control apparatus uses feedback control to detect when the motor current exceeds safe thresholds during reverse movement. Upon detecting abnormal current levels, the system automatically adjusts the rotation speed to reduce load, preventing damage while allowing flexible movement in any direction.
3Productivity
If the mobile robot operates continuously on carpets, then cleaning productivity increases, but the motor and circuit devices suffer continuous load causing damages
Solution Approach 1:
The system performs preliminary detection of abnormal current patterns that indicate continuous overload conditions. By monitoring current values during continuous carpet cleaning operations, the system can identify when sustained high load is being applied and take preventive action before cumulative damage occurs to the motor or circuit devices.
Solution Approach 2:
The control apparatus implements continuous feedback monitoring of motor current during extended cleaning operations. When abnormal current levels are detected indicating continuous overload, the system automatically reduces rotation speed to alleviate the load, enabling sustained productivity while protecting motor and circuit device integrity.
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 solution effectively prevents damage to the cleaning motor and extends its lifespan by managing overcurrent and temperature issues, while also detecting and notifying errors due to low voltage or jamming, ensuring safe operation across different floor environments.
Implementation Method 1
a current measuring unit which measures a current value by sensing a current for a motor which is connected to a cleaning module to be driven
Data Source
AI summary
Disclosed are a mobile robot operation control method for safety management of a cleaning module and an apparatus therefor. The mobile robot operation control method for safety management according to an exemplary embodiment of the present disclosure includes a current measuring step of measuring a current value by sensing a current for a motor which is connected to a cleaning module to be driven; a cleaning module safety management step of determining a state of the cleaning module based on the measured current value and determining a safety management control mode based on the determination result; and an operation control step of controlling an operation of a mobile robot based on the safety management control mode.