AGV Route Segmentation With Tag-Based Collision Exclusion

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Solution Overview

Problem

Existing traveling systems for automatic traveling devices face challenges in managing multiple AGVs in the same area, leading to increased processing load and potential collisions due to overlapping travel routes and arbitrary stopping positions.

Innovation Solution

A traveling system that generates sectional traveling routes of predetermined length for each AGV to avoid overlaps, and sets prohibition points using tags to prevent collisions, while also allowing for appropriate stop positions to be set based on the size of the AGVs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the traveling route from the start point to the destination is previously set for each automatic traveling device, then the automatic traveling devices can travel along predetermined routes, but the processing load increases and the devices may come into contact with each other when routes are close

Engineering Contradiction:
Improvecollision avoidanceVSAvoidprocessing load
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the traveling route into multiple sections with predetermined lengths. Each section is assigned to a specific automatic traveling device, creating segmented travel paths. This segmentation reduces the processing load by allowing independent route management while maintaining collision avoidance through spatial separation of device trajectories.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a temporal dimension to route management by controlling the timing and sequence of device movements through different route sections. Devices are assigned to specific time windows for traversing particular sections, transforming the problem from purely spatial route planning to a spatio-temporal coordination system, thereby reducing conflicts and processing complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If a specific automatic traveling device temporarily stops on the traveling route, then the device can perform intermediate operations, but it interferes with the traveling of other automatic traveling devices

Engineering Contradiction:
Improveintermediate operation capabilityVSAvoidtraveling efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent designates specific sections along the traveling route as stop sections where automatic traveling devices are permitted to pause for intermediate operations. By segmenting the route into travel sections and stop sections, the system allows devices to perform operations without blocking the entire route, thereby maintaining overall traveling efficiency while providing necessary operational flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces stop sections as intermediary zones that mediate between the need for intermediate operations and the requirement for continuous device flow. These designated stop sections act as buffer zones where devices can pause without interfering with the movement of other devices in adjacent sections, thus resolving the conflict between operational adaptability and system productivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Area of stationary object

If the traveling routes of multiple automatic traveling devices are set to be close for efficient space utilization, then area utilization improves, but the devices may come into contact with each other

Engineering Contradiction:
Improvearea utilizationVSAvoidcollision avoidance
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The patent segments the traveling area into multiple designated sections, each assigned to specific automatic traveling devices. By dividing the space into discrete segments with clear boundaries, the system achieves high area utilization while preventing device contact through explicit spatial separation. Each device operates within its assigned section, eliminating the risk of collisions even when routes are closely packed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent resolves the spatial conflict by introducing temporal coordination. Devices are assigned to specific time intervals for traversing closely spaced route sections, adding a temporal dimension to the spatial arrangement. This spatio-temporal management allows maximum area utilization while ensuring that devices occupying adjacent spatial positions do so at different times, thereby preventing collisions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20250068170A1Traveling system and traveling method
Publication Date: 2025.02.27 SHARP KK
  • US20250068170A1 patent drawing
  • US20250068170A1 patent drawing
  • US20250068170A1 patent drawing

AI summary

A traveling system includes a generation processing unit that generates a sectional traveling route that has a predetermined length and forms a part of a traveling route from a current position to a destination position of a first automatic traveling device such that the sectional traveling route of the first automatic traveling device does not overlap with the sectional traveling route generated for the other second automatic traveling device and a setting processing unit that sets a first tag included in the sectional traveling route generated for the first automatic traveling device and a second tag arranged within a predetermined range from the first tag as prohibition points to prohibit traveling of the second automatic traveling device.