Mobile Body Control for Shared-Line Travel and Inspection

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Solution Overview

Problem

Existing communication systems for vehicles undergoing remote control and inspection face bandwidth congestion due to simultaneous communication demands, leading to potential failures.

Innovation Solution

A control device that integrates a position acquisition unit, storage unit, and determination unit to manage vehicle travel and inspection communications, allowing for intelligent decision-making based on position information, scheduled inspections, and communication load to optimize bandwidth usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If communication for travel control and communication for inspection are performed simultaneously via the same DLC, then both functions can be implemented, but communication band is squeezed causing communication failure

Engineering Contradiction:
Improvecommunication functionalityVSAvoidcommunication stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system dynamically adjusts communication priorities based on operational context. The determination unit switches between prioritizing travel control communication and inspection communication depending on whether the vehicle is in travel mode or inspection mode, preventing bandwidth congestion by ensuring only one communication type dominates at any given time

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes communication parameters (priority levels, bandwidth allocation) based on the vehicle's operational state. When inspection is detected, the communication parameters for inspection tools are adjusted to high priority while travel control communication is temporarily deprioritized, avoiding simultaneous high-demand communication that causes failures

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If inspection communication is performed with high communication load, then detailed inspection can be conducted, but travel control communication may fail due to bandwidth congestion

Engineering Contradiction:
Improveinspection accuracyVSAvoidtravel control reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The system performs preliminary detection of inspection tools connected to the vehicle before allowing high-load inspection communication to commence. The determination unit identifies inspection tool connections in advance and proactively adjusts communication priorities, ensuring that when intensive inspection communication begins, travel control communication is already deprioritized to prevent congestion and failures

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250244777A1Control device
Publication Date: 2025.07.31 TOYOTA JIDOSHA KK
  • US20250244777A1 patent drawing
  • US20250244777A1 patent drawing
  • US20250244777A1 patent drawing

AI summary

A control device that controls a mobile body that travels through unattended driving and the mobile body performs communication for controlling travel of the mobile body through the unattended driving and communication for inspecting the mobile body via an identical line. The control device includes a position acquisition unit that acquires position information indicating a current position of the mobile body, a storage unit storing first information indicating one or more inspections performed on the mobile body on a scheduled travel route of the mobile body and a point associated with each of the inspections where the inspection is performed on the travel route, and second information indicating a communication load in communication for the inspection and associated with the inspection, and a determination unit determining whether to cause the mobile body to travel through the unattended driving based on the position information, the first information, and the second information.