Autonomous cleaning device
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Solution Overview
Problem
Current autonomous cleaning devices, such as sweeping and mopping robots, are limited in their ability to perform both functions simultaneously effectively, often resulting in reduced cleaning efficiency and mobility due to fixed heights and resistance issues when trying to clean surfaces with varying heights or obstacles.
Innovation Solution
An autonomous cleaning device with a mobile platform and a dual cleaning module that includes both dry and wet cleaning capabilities, featuring a lifting structure to adjust the cleaning head's position and a reciprocating movement mechanism for enhanced cleaning efficiency, along with a method for the robot to escape trapped states by detecting and avoiding obstacles using surface media sensors and room mapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a sweeping robot and a mopping robot are combined into one integrated device, then the occupied space is reduced, but the cleaning efficiency and effectiveness are reduced because the mop can only move along a single trajectory without reciprocating movement
Solution Approach 1:
The cleaning head is designed with reciprocating movement capability, allowing it to dynamically change its motion pattern from simple linear movement to back-and-forth reciprocating motion. This dynamic adjustment enables the cleaning head to cover a wider area and improve cleaning effectiveness while maintaining the integrated design that saves space.
Solution Approach 2:
The cleaning head performs periodic reciprocating movements, alternating between forward and backward motion along the cleaning surface. This periodic action allows the mop to clean both sides of the trajectory repeatedly, significantly improving cleaning efficiency compared to single-direction movement, while the entire mechanism remains compact enough to fit in an integrated robot design.
2Reliability
If the cleaning components are fixed at a constant height and tightly attached to the cleaning surface, then the cleaning contact is maintained, but the mobility and ease of movement are reduced when encountering obstacles or varying surface heights
Solution Approach 1:
The cleaning component's height is made adjustable rather than fixed. The lifting structure allows the cleaning head to dynamically change its height relative to the robot body, enabling it to adapt to varying surface conditions and obstacles while maintaining reliable contact with the cleaning surface when needed.
Solution Approach 2:
The height parameter of the cleaning component is made variable through the lifting structure. By changing the height parameter dynamically, the system can maintain optimal contact with the cleaning surface for effective cleaning while also being able to raise the cleaning head to navigate over obstacles or transition between different cleaning modes, thus improving both reliability and mobility.
Data Source
AI summary
An autonomous cleaning device, includes: a mobile platform, configured to move autonomously on a cleaning surface; and a cleaning module, disposed on the mobile platform and including a wet cleaning module, configured to clean at least part of the cleaning surface in a wet cleaning mode.