Automatic Cleaning Device Supplementary Movement for Turn Coverage

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Solution Overview

Problem

Automatic cleaning devices often result in poor cleaning effects due to missing cleaning areas when making turns, particularly near obstacles like walls and furniture.

Innovation Solution

The automatic cleaning device performs supplementary cleaning movements, including backward and forward movements, after each rotation by a preset angle during direction switching to ensure complete coverage, using sensors to detect obstacles and adjust cleaning paths accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the automatic cleaning device performs direction switching when moving into a preset range of an obstacle, then the device can avoid obstacles and continue cleaning, but this causes missing cleaning areas and poor cleaning effect

Engineering Contradiction:
Improvecleaning effectVSAvoidcleaning coverage
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The cleaning device performs supplementary cleaning movements before completing the direction switching operation. When the device detects it is within the preset range of an obstacle and needs to perform direction switching, it first executes backward and forward movements to clean the area near the obstacle, then completes the rotation. This preliminary cleaning action ensures that the cleaning coverage is not compromised by the upcoming direction change.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The cleaning device dynamically adjusts its movement sequence during direction switching. Instead of completing the rotation first and then cleaning, the device integrates supplementary cleaning movements (backward and forward) into the direction switching process itself. This dynamic adjustment ensures continuous cleaning coverage even while changing direction.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the automatic cleaning device completes direction switching quickly, then the efficiency is improved, but this results in missing cleaning areas near obstacles

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidcleaning coverage area
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The direction switching operation is segmented into multiple phases: the first phase includes backward and forward supplementary cleaning movements, and the second phase completes the rotation. This segmentation allows the device to allocate time for cleaning during the switching process without significantly delaying overall efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cleaning action continues throughout the direction switching process rather than being interrupted. The supplementary cleaning movements (backward and forward) are executed continuously during the rotation, ensuring that the cleaning function remains active and productive throughout the entire direction change sequence.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP4681595A1Control method and apparatus for automatic cleaning device, and automatic cleaning device and storage medium
Publication Date: 2026.01.21 BEIJING ROBOROCK INNOVATION TECH CO LTD
  • EP4681595A1 patent drawingFigure 1~2
  • EP4681595A1 patent drawingFigure 3~5
  • EP4681595A1 patent drawingFigure 6~8

AI summary

A control method and apparatus for an automatic cleaning device (100), and an automatic cleaning device (100) and a storage medium. The automatic cleaning device (100) comprises a body (101) and a cleaning assembly (1031) arranged on the rear of the body (101), wherein the cleaning assembly (1031) at least partially protrudes from an outer edge of the body (101). The control method comprises: in the process of an automatic cleaning device (100) changing directions after moving into a preset range of an obstacle (300), executing a supplemental cleaning action once after each time the automatic cleaning device (100) rotates by a preset angle, until the automatic cleaning device (100) completes direction changing, wherein supplemental cleaning actions comprise a backward action and a forward action (S401) The automatic cleaning device (100) executes a supplemental cleaning action during turning, thereby increasing the area of cleaning coverage, reducing a cleaning-missing region, and improving the cleaning effect of the automatic cleaning device (100).