Mobile Apparatus Obstacle Navigation and Displacement Control

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Solution Overview

Problem

Existing robot systems face inefficiencies in securing routes and avoiding obstacles, leading to wasted effort and time, as they often lack confirmation of the feasibility of moving objects out of their path before attempting to navigate.

Innovation Solution

A mobile apparatus equipped with a control device that autonomously determines and adjusts its movement trajectory to avoid obstacles by assessing various moving conditions and object classifications, allowing it to either navigate around or move objects to clear its path effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the robot attempts to move an object to secure its route without confirming feasibility beforehand, then the route may be secured, but time and effort are wasted

Engineering Contradiction:
Improveroute securityVSAvoidtime and effort wasted
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The control device performs preliminary determination of moving conditions before executing object displacement. It evaluates whether the object can be moved, whether the robot can return to its target trajectory, and whether the object belongs to a movable classification, thereby avoiding wasted time and effort on infeasible movements

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback loops to continuously monitor and re-evaluate moving conditions. After moving an object, the robot determines whether it can return to its current target position trajectory, and adjusts its plan accordingly, ensuring reliable route security while minimizing wasted effort

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the robot emits a message prompting the human object to move in a difficult direction, then the human may be prompted to move, but the message becomes inappropriate and counterproductive

Engineering Contradiction:
Improveobject displacementVSAvoidmessage appropriateness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The control device determines in advance whether the object belongs to a classification that can be moved by force from the mobile apparatus. This preliminary classification prevents the robot from issuing inappropriate prompts to humans or immovable objects, ensuring message appropriateness before communication occurs

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter of object classification to determine appropriate interaction methods. By classifying objects as movable by force or not, the robot adapts its communication and action strategies accordingly, avoiding inappropriate prompts while maintaining ease of operation for suitable objects

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS8688307B2Moving device and method for controlling same
Publication Date: 2014.04.01 HONDA MOTOR CO LTD
  • US8688307B2 patent drawing
  • US8688307B2 patent drawing
  • US8688307B2 patent drawing

AI summary

Even when a first moving condition is not satisfied, when it is determined that a second moving condition is satisfied and at the same time an object belongs to a second classification, an operation of a robot is controlled so as to prompt the object to move according to a first pattern or an arbitrary pattern. The “first moving condition” is a condition that the robot is capable of moving without being obstructed by the object when the robot moves according to a current target position trajectory. The “second moving condition” is a condition that the robot is capable of moving according to the current target position trajectory without being obstructed by the object when the object is displaced according to the first pattern. The “second classification” means a classification of the object which is capable of being moved by a force from the robot acting thereon.