Autonomous Cart Robot Docking for Vehicle Trunk Loading

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Solution Overview

Problem

Manual loading and unloading of objects from vehicle trunks is cumbersome, especially for elderly individuals, and requires significant time and effort, necessitating a solution for automated assistance.

Innovation Solution

An autonomous cart robot that can dock itself within a vehicle's trunk without human assistance, equipped with sensors and motorized wheels, allowing it to act as a shopping cart outside the vehicle and automatically load/unload objects into the trunk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual loading and unloading is performed, then the process can be completed with simple equipment, but it requires significant physical effort and time

Engineering Contradiction:
Improvephysical effort requiredVSAvoidautomation system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The robot performs loading and unloading operations autonomously without human assistance. It navigates independently, identifies objects, and executes transfer operations automatically, allowing the system to serve itself rather than requiring manual operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations with an automated robotic system equipped with sensors, processors, and actuators. The robot uses computer vision and navigation systems to substitute human physical effort with automated mechanical and electronic systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If automated loading/unloading is implemented, then physical strain on users is reduced, but the device complexity increases

Engineering Contradiction:
Improveuser burdenVSAvoidrobot system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The robot is designed to perform multiple functions including navigation, object identification, loading, unloading, and trunk integration. This multi-functionality consolidates various separate systems into a single universal device, reducing the need for multiple specialized machines.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The robot acts as an intermediary between the user and the vehicle trunk. It handles the intermediate task of transferring objects, mediating between the user's intent and the physical loading/unloading process, thereby reducing direct user burden.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Extent of automation

If the robot docks automatically in the trunk, then human assistance is eliminated, but the docking mechanism becomes more complex

Engineering Contradiction:
Improvedocking automationVSAvoiddocking mechanism complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The robot uses sensors and vision systems to continuously monitor its position and environment during docking. This feedback allows the robot to adjust its movements in real-time, achieving automatic docking through closed-loop control rather than complex mechanical guidance systems.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The automatic docking mechanism replaces complex mechanical alignment systems with sensor-based navigation and computer vision. The robot uses electronic sensing and processing to achieve precise docking without requiring complex mechanical docking structures.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If the robot follows users and recognizes obstacles, then navigation safety is improved, but sensor and processing requirements increase

Engineering Contradiction:
Improvenavigation safetyVSAvoidsensor system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The robot performs preliminary obstacle detection and path planning before executing movement. By identifying potential hazards and planning safe routes in advance, the system ensures navigation safety without requiring overly complex real-time response systems.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The robot continuously monitors its environment using sensors and adjusts its navigation based on real-time feedback. This ongoing sensing and adjustment ensures safe navigation while using relatively simple sensor systems that react to current conditions rather than requiring complex predictive models.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3774493B1Systems and methods for an autonomous cart robot
Publication Date: 2023.04.26 TOYOTA JIDOSHA KK
  • EP3774493B1 patent drawingFigure 1
  • EP3774493B1 patent drawingFigure 2
  • EP3774493B1 patent drawingFigure 3A~3B

AI summary

A system may include a vehicle having a storage area and a guide rail configured to extend from the storage area. The system may further include a robot having a support portion comprising a placement surface and a base. The robot may also include a plurality of descendible wheels. The robot may also further include a plurality of legs, each connecting the support portion to one of the plurality of descendible wheels.