Snowfield Robot Sail-Assisted Navigation for Stable Long-Range Roaming

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Solution Overview

Problem

Autonomous robots face challenges in navigating and operating effectively in harsh snowfield environments due to extreme climate conditions, uncertain road conditions, and energy supply issues, particularly in polar regions where robotic scientific investigation is risky and inefficient.

Innovation Solution

A perception and control system for autonomous snowfield-roaming robots, comprising a perception system, control system, execution mechanism, and remote monitoring module, which uses sail assistance navigation to achieve stable and energy-efficient long-distance operations by perceiving the environment, managing energy consumption, and avoiding obstacles, while leveraging wind energy resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If sail assistance navigation is used to achieve long-distance and energy-efficient operations, then energy consumption is reduced and operation duration is extended, but the robot may overturn due to unstable forces from wind and snow conditions

Engineering Contradiction:
Improveenergy consumptionVSAvoidrobot stability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The robot employs dynamic adjustment of sail angle and position based on real-time wind conditions and robot state. The control system continuously modifies the sail configuration to optimize energy capture while preventing overturning, transforming a static structure into a dynamically adaptive one that balances energy efficiency with stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements closed-loop feedback control where sensors monitor wind speed, wind direction, robot position, and robot attitude. This information feeds back to the control system which adjusts the sail parameters in real-time, creating a feedback mechanism that simultaneously optimizes energy consumption and maintains stability against overturning.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If autonomous navigation is implemented in harsh snowfield environments, then robotic scientific investigation can be conducted in polar regions, but the robot faces extreme climate conditions and uncertain road conditions that challenge reliable operation

Engineering Contradiction:
Improveenvironmental adaptabilityVSAvoidoperation reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The perception system is divided into multiple specialized modules: wind field perception module, snowfield environment perception module, and robot state perception module. Each module focuses on specific environmental parameters, allowing the system to adapt to diverse and changing conditions while maintaining reliable operation through specialized sensing for each challenge.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system dynamically adjusts operational parameters based on perceived environmental conditions. It modifies navigation speed, sail angle, motor power output, and other parameters in response to changes in wind conditions, snow depth, and terrain characteristics, enabling the robot to adapt to extreme climates while maintaining reliable operation.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables remote task deployment and state monitoring in extreme snow environments, allowing for intelligent, reliable, and energy-efficient long-distance and large-scale autonomous roaming, suitable for both common and polar regions with abundant wind energy.

Implementation Method 1

the robot uses energy reasonably with an assistance of a wind farm environment so as to achieve navigation with sail assistance finally

Methodology Applied
Scientific EffectWind energy: Wind Power

Data Source

PatentUS20230315103A1Perception and control system of autonomous snowfield-roaming robot and operation and path planning method thereof
Publication Date: 2023.10.05 HARBIN INST OF TECH
  • US20230315103A1 patent drawing
  • US20230315103A1 patent drawing
  • US20230315103A1 patent drawing

AI summary

A perception and control system of an autonomous snowfield-roaming robot and an operation and path planning method thereof are provided. The perception system is configured to perceive the robot’s own state and an extreme snow environment where the robot is located; the control system is configured to realize an autonomous navigation movement and obstacle avoidance of the robot for stability and reliability of robot roaming, wherein the robot uses energy reasonably based on a wind farm environment so as to achieve navigation with sail assistance finally; the execution mechanism is configured to execute control instructions and an operation task issued by the control system so as to realize snowfield roaming; and the remote monitoring module is configured to monitor state information of the robot, and to issue the operation task and target path to the control system for operation and global path planning.