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

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Self-moving robots with active obstacle crossing components face inefficiencies and damage due to frequent activation and obstacle collisions, reducing cleaning efficiency and service life.

Innovation Solution

Implementing an obstacle crossing method that identifies obstacles by height and adjusts crossing frequencies for different types of obstacles, reducing the need for active crossing and optimizing cleaning paths to minimize damage and prolong service life.

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 applies parameter changes by dynamically adjusting the obstacle crossing frequency based on obstacle characteristics (height, type) and cleaning task requirements. The control unit determines whether to cross obstacles by evaluating multiple parameters including obstacle height relative to robot height, current cleaning progress, and preset frequency thresholds, thereby optimizing the balance between obstacle crossing ability and component durability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamics by making the obstacle crossing behavior adaptive rather than fixed. The robot dynamically decides whether to cross obstacles based on real-time conditions and accumulated cleaning frequencies, allowing the system to flexibly adjust its behavior to preserve components while maintaining cleaning effectiveness

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If the robot frequently crosses over obstacles to complete cleaning tasks, then the cleaning coverage is improved, but the cleaning efficiency is reduced due to time consumption

Engineering Contradiction:
Improvecleaning coverageVSAvoidcleaning efficiency
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The patent applies periodic action by implementing a frequency-based decision mechanism where the robot crosses obstacles only when a preset frequency threshold is reached. This periodic crossing strategy, combined with path planning that avoids unnecessary obstacle crossings, optimizes the balance between cleaning coverage and time consumption

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent uses preliminary action by pre-calculating optimal paths and setting frequency thresholds before cleaning operations. The control unit plans the cleaning path in advance, identifying which obstacles should be crossed based on their characteristics and the overall cleaning strategy, thereby avoiding spontaneous and time-consuming obstacle crossings during execution

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the robot crosses over all obstacles to clean behind them, then the cleaning thoroughness is improved, but the number of obstacle crossings increases causing more damage

Engineering Contradiction:
Improvecleaning thoroughnessVSAvoiddamage from obstacle crossings
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by differentiating obstacle crossing strategies based on specific obstacle characteristics and locations. The control unit evaluates each obstacle individually considering its height, type, and position relative to cleaning zones, applying crossing actions only where necessary to maintain cleaning thoroughness while minimizing overall damage

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements segmentation by dividing the cleaning area into zones behind obstacles and evaluating each zone's cleaning necessity separately. The system segments the decision-making process into: identifying obstacles, assessing behind-obstacle areas, determining crossing frequency thresholds, and executing selective crossings, thereby optimizing the balance between thoroughness and damage reduction

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12115674B1Self-moving robot, obstacle crossing method, obstacle crossing system and computer-readable storage medium
Publication Date: 2024.10.15 DREAM INNOVATION TECH (SUZHOU) CO LTD
  • US12115674B1 patent drawing
  • US12115674B1 patent drawing
  • US12115674B1 patent drawing

AI summary

A self-moving robot includes an active obstacle crossing component, and performs a cleaning task based on a preset cleaning frequency. An obstacle crossing method includes: identifying a type of an obstacle, and determining whether the obstacle is a first type of obstacle or a second type of obstacle according to a height rule, acquiring a first obstacle crossing frequency corresponding to the first type of obstacle, crossing over or not crossing over the first type of obstacle based on the first obstacle crossing frequency, where the first obstacle crossing frequency is less than or equal to the preset cleaning frequency; and 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, where the second obstacle crossing frequency is less than the preset cleaning frequency.