Autonomous Vehicle Position Restart Using Reliability History

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Solution Overview

Problem

Existing position measurement processes in autonomous moving objects, such as AGVs, fail to appropriately restart if the measurement fails or reliability is low, leading to unstable control and the need for manual intervention.

Innovation Solution

An information processing device with a processor configured to measure position, acquire success/failure information, and determine a restart method based on historical data, including position, illuminance, and imaging element direction, to autonomously resume control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the position measurement process is performed using images captured by an image capture device, then the moving object can achieve autonomous traveling capability, but the system becomes vulnerable to measurement failures that require manual intervention

Engineering Contradiction:
Improveautonomous traveling capabilityVSAvoidposition measurement reliability
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The system continuously monitors the reliability of position measurement results and provides feedback to the control unit. When the reliability falls below a threshold, the system automatically interrupts autonomous traveling and notifies the operator, creating a closed-loop control system that adapts to measurement quality variations.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary validation of position measurement reliability before continuing autonomous traveling. By assessing measurement quality in advance and interrupting operation when reliability is insufficient, the system prevents problematic autonomous travel rather than reacting after failure occurs.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the position measurement process is interrupted due to failure, then control stability is maintained, but the moving object cannot resume autonomous traveling without manual intervention

Engineering Contradiction:
Improvecontrol stabilityVSAvoidoperational continuity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system automatically manages the interruption and resumption of autonomous traveling without requiring manual intervention. The control unit autonomously determines when to interrupt based on measurement reliability and can automatically resume operation when reliability is restored, making the system self-managing during failures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors position measurement reliability and uses this feedback to automatically resume autonomous traveling when reliability improves. This closed-loop approach eliminates the need for manual reset while maintaining control stability through automated decision-making.

Inventive Principle:
Principle #23Feedback

3Productivity

If the system continuously monitors position measurement reliability, then autonomous traveling can be maintained when possible, but the system complexity increases

Engineering Contradiction:
Improveautonomous traveling availabilityVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control unit performs multiple functions: it manages autonomous traveling control, monitors position measurement reliability, determines when to interrupt or resume operation, and notifies operators. By consolidating these diverse functions into a single control unit, the system achieves multi-functionality without proportionally increasing complexity.

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

Solution Approach 2:

The system combines the position measurement process, reliability assessment, autonomous traveling control, and operator notification into an integrated system. By merging these previously separate functions into a unified control framework, the system reduces overall complexity while maintaining continuous monitoring capability.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12434721B2Information processing device, moving device, storage medium, and information processing method to measure position of moving object
Publication Date: 2025.10.07 CANON KK
  • US12434721B2 patent drawing
  • US12434721B2 patent drawing
  • US12434721B2 patent drawing

AI summary

An information processing device measures a position of the moving object, acquires success or failure information relating to success or failure of the position measurement, acquires at least one of histories, determines to interrupt driving control of the moving object, and decides, if the driving control of the moving object is determined to be interrupted, a restart method. The histories include a history of the position of the moving object, a driving history of the moving object, a history of illuminance around the moving object, and a history of a direction of an imaging element mounted in the moving object. The driving control of the moving object is interrupted on the basis of the success or failure information. The restart method restarts the driving control of the moving object on the basis of at least one of the histories.