Cleaning robot, bristle control method and device, and computer storage medium

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Solution Overview

Problem

In cleaning robots, the bristles of the side brush assembly often rotate during mopping mode, causing adverse effects such as contamination of external areas and interference with the mopping assembly and driving wheels, and can exceed the cleanable range, leading to pollution of nearby surfaces.

Innovation Solution

A controller is used to limit the target bristle of the side brush assembly to a designated area or separate it from the ground when it exceeds this area, preventing contamination and ensuring the bristle does not interfere with the mopping process or affect the appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the side brush assembly is mounted on the robot body, then the cleaning robot can perform sweeping function, but the bristles rotate along with movement and affect the appearance and may interfere with mopping assembly and driving wheels

Engineering Contradiction:
Improvecleaning functionVSAvoidappearance effect and interference
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The side brush assembly is designed to be rotatable relative to the robot body, allowing it to dynamically adjust its position. During mopping mode, the side brush rotates to a predetermined position where bristles are retracted or positioned to avoid interference with the mopping assembly and driving wheels, while during sweeping mode it returns to its working position

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The controller is configured to control the side brush to rotate to the predetermined position before the mopping assembly performs mopping operation, preventing potential interference in advance. This preliminary positioning ensures that the bristles do not contact the mopping assembly or driving wheels during mopping mode

Inventive Principle:
Principle #10Preliminary action

2Area of stationary object

If the bristles of the side brush assembly are long to improve cleaning coverage, then the cleaning range is increased, but the bristles exceed the robot body and pollute clean surfaces

Engineering Contradiction:
Improvecleaning coverageVSAvoidpollution of clean surfaces
Core Design Contradiction:
Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The side brush assembly can rotate between a working position (extending outward for cleaning) and a retracted position (where bristles are positioned within or near the robot body boundary). This dynamic positioning allows long bristles to provide extensive cleaning coverage when needed while being retracted to prevent pollution of clean surfaces during non-working periods

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The controller controls the side brush to rotate to the retracted position before the cleaning robot enters a mopping area or clean zone, ensuring that long bristles do not extend beyond the robot body and pollute clean surfaces in advance

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4247227B1Cleaning robot, bristle control method and device, and computer storage medium
Publication Date: 2024.05.08 YUNJING INTELLIGENCE (SHENZHEN) CO LTD
  • EP4247227B1 patent drawingFigure 1~2
  • EP4247227B1 patent drawingFigure 3~4
  • EP4247227B1 patent drawingFigure 5~6

AI summary

A cleaning robot, a bristle control method and a bristle control device, and a computer storage medium are provided. The cleaning robot includes a robot body, an side brush assembly disposed on the robot body, and a controller disposed on the robot body and configured to control a target bristle of the side brush assembly to be limited in a designated area. In embodiments of this application, the target bristle of the side brush assembly is limited in the designated area to prevent, as much as possible, the target bristle from exceeding out of the cleaning robot and affecting the appearance of the cleaning robot.