Robot Obstacle Bypassing via Observation-Point Route Planning

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Solution Overview

Problem

Self-walking devices, such as sweeping robots, face challenges in efficiently navigating around continuous irregular obstacles or hidden obstacles behind wall corners, leading to collisions and prolonged cleaning times.

Innovation Solution

The method involves detecting an object to be circumvented and moving the self-walking device to an observation position away from the object, where it can gather information about the surroundings and plan a navigation route to avoid the obstacle effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the self-walking device adopts an along-the-wall obstacle avoidance strategy, then it can circumvent obstacles in front, but it easily collides with hidden obstacles behind wall corners and requires repeated recognition

Engineering Contradiction:
Improveobstacle avoidance reliabilityVSAvoidcleaning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The self-walking device performs preliminary actions by moving to an observation position before actually encountering hidden obstacles, gathering information about the environment in advance. This allows the device to plan its navigation route proactively rather than reactively, avoiding repeated collisions and recognition cycles

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The observation position serves as an intermediary between the current position and the hidden obstacle. By moving to this intermediate position first, the device can gather information about hidden obstacles without directly approaching them, enabling better route planning before final navigation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the self-walking device moves to an observation position to gather information, then it can plan navigation routes more effectively, but it requires additional movement and time

Engineering Contradiction:
Improvenavigation accuracyVSAvoidtime for obstacle circumvention
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The device performs partial observation by moving to a specific observation position that provides sufficient information for route planning without requiring complete 360-degree surveillance. This partial action achieves the necessary navigation accuracy while minimizing additional time consumption

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP4242769B1Method and apparatus for bypassing an object, medium and electronic device
Publication Date: 2025.06.18 BEIJING ROBOROCK INNOVATION TECH CO LTD
  • EP4242769B1 patent drawingFigure 1~2
  • EP4242769B1 patent drawingFigure 3~4
  • EP4242769B1 patent drawingFigure 5

AI summary

A method and apparatus for bypassing an object, a medium and an electronic device. The method comprises: during a walking process of a self-walking device, when an object to be bypassed is detected, first moving to an observation location distant from said object, observing the situation around said object at the observation location, and planning a navigation route according to the situation. The method reduces the probability of collision of the self-walking device with a hidden obstacle, saves the time of repeatedly identifying the hidden obstacle, and improves the walking efficiency.