Robot Docking Station Roller Debris Removal With Agitator Locking
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Solution Overview
Problem
Current cleaning systems for autonomous coverage robots lack an efficient method for maintaining and cleaning the debris accumulated by their rollers, leading to reduced performance and increased maintenance costs.
Innovation Solution
A cleaning robot system that includes a robot maintenance station with a mechanical agitator and a collection bin, which uses a motorized vacuum pump to remove debris from the rollers, and a locking assembly to secure the robot during maintenance, ensuring effective cleaning and easy debris disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical agitator is used to remove debris from the roller, then cleaning effectiveness is improved, but the robot may be forced off the docking platform
Solution Approach 1:
A locking assembly acts as an intermediary between the robot and the docking platform. The locking assembly secures the robot to the platform during the mechanical agitator operation, allowing the agitator to effectively remove debris from the roller without forcing the robot off the platform. This mediator enables the cleaning function while maintaining position stability.
2Reliability
If the robot is secured to the docking platform during maintenance, then cleaning operation is improved, but the robot cannot be removed easily
Solution Approach 1:
The locking assembly incorporates a solenoid actuator that dynamically controls the locking state. During cleaning operations, the solenoid engages to secure the robot to the platform, providing stability. When cleaning is complete, the solenoid disengages to release the robot, allowing easy removal. This dynamic switching resolves the contradiction between needing stability during cleaning and ease of removal afterward.
3Productivity
If a motorized vacuum pump is used to evacuate debris, then debris removal efficiency is improved, but the system complexity increases
Solution Approach 1:
The motorized vacuum pump is integrated into the maintenance station housing, merging the debris evacuation function with the existing mechanical agitator system. The vacuum pump draws debris through the same housing and collection bin infrastructure already present in the design, consolidating multiple functions into a unified system rather than adding separate independent components.
4Productivity
If the collection bin is positioned above the docking platform, then debris collection is improved, but the station height increases
Solution Approach 1:
The motorized vacuum pump uses pneumatic pressure differentials to transport debris vertically from the docking platform level to the collection bin positioned above. This pneumatic transport mechanism enables effective debris collection while accommodating the height constraint, as the vacuum system can move debris through vertical ducting without requiring the entire station structure to be excessively tall.
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
The system effectively removes debris from the rollers, improves robot performance, and reduces maintenance costs by providing a comprehensive solution for cleaning and maintaining the robots, ensuring continuous operation.
Implementation Method 1
a motorized vacuum pump that draws air and debris from the robot cleaning bin to deposit the debris into the collection bin
Implementation Method 2
an air pump that blows air through the station blower port into the cleaning bin while drawing air through the station evacuation port and evacuating debris from the robot cleaning bin into the collection bin
Data Source
AI summary
A cleaning robot system includes a robot and a robot maintenance station. The robot includes a chassis, a drive system configured to maneuver the robot as directed by a controller, and a cleaning assembly including a cleaning assembly housing and a driven cleaning roller. The robot maintenance station includes a station housing and a docking platform configured to support the robot when docked. A mechanical agitator engages the roller of the robot with the robot docked. The agitator includes an agitator comb having multiple teeth configured to remove accumulated debris from the roller as the agitator comb and roller are moved relative to one another. The robot maintenance station includes a collection bin arranged to receive and hold debris removed by the mechanical agitator.