Self-moving robot, obstacle crossing method, obstacle crossing system and computer-readable storage medium

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Solution Overview

Problem

Existing self-moving robots with active obstacle crossing components face inefficiencies and damage due to frequent activation, leading to reduced cleaning efficiency and shortened service life.

Innovation Solution

Implement a method to identify obstacles based on height, applying different crossing frequencies and strategies for first and second types of obstacles, reducing the need for active crossing and optimizing cleaning paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the active obstacle crossing component is frequently activated to cross over obstacles, then the robot's obstacle crossing ability is improved, but the service life of the robot is reduced due to wear and damage

Engineering Contradiction:
Improveobstacle crossing abilityVSAvoidservice life
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent changes the parameter of obstacle crossing frequency by introducing a frequency judgment mechanism. The control unit judges whether the obstacle crossing frequency exceeds a preset threshold and selectively activates the active obstacle crossing component only when necessary, thereby reducing unnecessary activations and extending service life while maintaining adequate obstacle crossing capability.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the active obstacle crossing component is activated to cross over high obstacles, then the robot can complete cleaning tasks on both sides of obstacles, but the cleaning efficiency is reduced due to time consumption

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidtime consumption
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent applies local quality by differentiating obstacle handling strategies based on obstacle height. For low obstacles (below threshold), the robot uses passive crossing without activation. For high obstacles (above threshold), the robot activates the component. This localized approach optimizes time consumption by avoiding unnecessary activations while ensuring high obstacles are properly crossed.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses partial action by not always activating the active obstacle crossing component. Instead, it activates the component only when the obstacle height exceeds the threshold, performing just enough action to handle the specific obstacle situation, thereby reducing overall time consumption while maintaining cleaning effectiveness.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If the robot crosses over all obstacles to clean the area behind them, then the cleaning coverage is improved, but the number of crossings and component activations increases causing more wear

Engineering Contradiction:
Improvecleaning coverageVSAvoidrobot durability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent changes the parameter of crossing frequency by implementing a threshold-based activation mechanism. The control unit monitors how many times the robot encounters obstacles and only activates the active obstacle crossing component when the frequency exceeds a preset threshold, thereby reducing the number of activations and component wear while maintaining adequate cleaning coverage.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250288175A1Self-moving robot, obstacle crossing method, obstacle crossing system and computer-readable storage medium
Publication Date: 2025.09.18 DREAM INNOVATION TECH (SUZHOU) CO LTD
  • US20250288175A1 patent drawing
  • US20250288175A1 patent drawing
  • US20250288175A1 patent drawing

AI summary

An obstacle crossing method for a self-moving robot, including: identifying a type of an obstacle, and determining that the obstacle is a second type of obstacle according to a height rule, where a height of the second type of obstacle is greater than a first height and less than a second height; acquiring a second obstacle crossing frequency corresponding to the second type of obstacle, crossing over or not crossing over the second type of obstacle based on the second obstacle crossing frequency, and cleaning a second target area behind the second type of obstacle when crossing over the second type of obstacle, where the second obstacle crossing frequency is less than a preset cleaning frequency.