Mobile Body Traffic Control With Direction-Based Exclusive Areas

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Solution Overview

Problem

Existing systems fail to effectively suppress deadlocks in the movement of multiple mobile bodies by reserving exclusive areas, leading to potential collisions and inefficiencies.

Innovation Solution

An information processing method that sets an exclusive area between a first position and a second position based on the travel direction of a mobile body, allowing only mobile bodies with identical travel directions to enter the area during a specific time slot, thereby preventing collisions and deadlocks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an exclusive area is reserved for a mobile body to move, then collision prevention is improved, but deadlock occurrence increases due to overly restrictive blocking

Engineering Contradiction:
Improvecollision preventionVSAvoiddeadlock suppression
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by differentiating the exclusive area rules based on travel direction. Instead of applying a uniform blocking rule to all mobile bodies in the exclusive area, the system selectively permits mobile bodies traveling in the same direction while blocking those traveling in opposite directions. This localized differentiation resolves the contradiction by maintaining collision prevention for opposing traffic while allowing same-direction mobile bodies to pass, thereby reducing deadlocks.

Inventive Principle:
Principle #3Local quality

2Reliability

If a blocking area is set to prevent mobile bodies from entering, then safety is improved, but system efficiency deteriorates due to restricted movement

Engineering Contradiction:
ImprovesafetyVSAvoidsystem efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies dynamics by making the exclusive area permission dynamic rather than static. The system continuously evaluates the travel direction of approaching mobile bodies and dynamically adjusts permission status: blocking opposite-direction mobile bodies while permitting same-direction mobile bodies. This dynamic adjustment maintains safety for opposing traffic while improving system efficiency by allowing same-direction mobile bodies to move freely.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12412469B2Information processing method, information processing device, and program
Publication Date: 2025.09.09 MITSUBISHI HEAVY IND LTD
  • US12412469B2 patent drawing
  • US12412469B2 patent drawing
  • US12412469B2 patent drawing

AI summary

An information processing method includes a step of acquiring movement information on a first mobile body including information on a first position through which the first mobile body is scheduled to pass in a first time slot and information on a travel direction of the first mobile body and a step of setting, as an exclusive area in the first time slot, an area between the first position and a second position on a travel direction side of the first mobile body from the first position based on the movement information on the first mobile body. The exclusive area is set in a manner that the second mobile body other than the first mobile body is not permitted to move within the exclusive area in the travel direction different from the travel direction of the first mobile body in the first time slot, and the second mobile body is permitted to move within the exclusive area in the same travel direction as the first mobile body in the first time slot.