Mowing Robot Obstacle Avoidance With Adaptive Path Parameters

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Solution Overview

Problem

Existing mowing robots lack adaptability and flexibility in obstacle avoidance, as they follow a preset path once an obstacle is detected, without adjusting based on the specific obstacle, leading to inefficiencies in various use scenarios.

Innovation Solution

An intelligent obstacle avoidance method that detects obstacles and generates adaptive obstacle avoidance paths with increasing parameters, allowing the mowing robot to bypass obstacles efficiently and flexibly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a preset path is followed for obstacle avoidance, then the obstacle avoidance process is simple to implement, but the adaptability to different obstacles and scenarios is poor

Engineering Contradiction:
Improveease of implementationVSAvoidadaptability to different obstacles
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic obstacle avoidance by allowing the robot to adjust its path in real-time based on obstacle detection. Instead of following a fixed preset path, the robot dynamically generates avoidance paths using algorithms like A* or Dijkstra, adapting to different obstacle positions and types during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes path planning parameters dynamically based on obstacle characteristics. When obstacles are detected, the system modifies path parameters such as avoidance distance, turning angle, and speed adjustments to adapt to specific obstacle scenarios, thereby improving versatility while maintaining implementation feasibility.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If a fixed obstacle avoidance method is used, then the system complexity is low, but the obstacle avoidance efficiency is poor

Engineering Contradiction:
Improvesystem complexityVSAvoidobstacle avoidance efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements feedback mechanisms where the robot continuously detects obstacles during operation and adjusts its path accordingly. The system uses sensor feedback to identify obstacles, processes this information through path planning algorithms, and dynamically modifies the navigation path to improve avoidance efficiency while managing system complexity through modular architecture.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent performs preliminary path planning before obstacle avoidance is needed, preparing multiple potential paths in advance. When obstacles are detected, the system quickly selects and executes the most appropriate pre-planned path or generates a new one, thereby improving response efficiency without requiring overly complex real-time computation.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If adaptive path generation is implemented, then the flexibility and efficiency of obstacle avoidance improve, but the computational complexity increases

Engineering Contradiction:
Improveflexibility in obstacle avoidanceVSAvoidcomputational complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the path planning process into distinct modules: obstacle detection, path generation, path evaluation, and execution. Each module handles specific computational tasks independently, allowing the system to achieve high flexibility in adapting to different obstacles while managing computational complexity through divided responsibilities and optimized algorithms.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250143207A1Intelligent obstacle avoidance method, and mowing robot and storage medium
Publication Date: 2025.05.08 SHENZHEN MAMMOTION INNOVATION CO LTD
  • US20250143207A1 patent drawing
  • US20250143207A1 patent drawing
  • US20250143207A1 patent drawing

AI summary

Disclosed in the present disclosure is an intelligent obstacle avoidance method. An obstacle in a current path may be detected; a first obstacle avoidance path is generated with a first parameter based on a detection result, and a mowing robot is controlled to operate; if the obstacle is detected again in the first obstacle avoidance path, a second obstacle avoidance path is generated with a second parameter, and the mowing robot is controlled to operate; and the above steps are repeated until the obstacle is bypassed.