Autonomous Mobile Object Stop Control in No-Stop Map Regions

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Solution Overview

Problem

Mobile objects that stop on the ground can obstruct passage of other persons and vehicles, posing safety hazards.

Innovation Solution

A mobile object system that includes map information defining regions where stopping is prohibited, with determiners to assess whether to stop based on position and conditions, ensuring safe stopping by avoiding certain areas and resuming movement only when safe to do so.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the mobile object stops on the spot when autonomous movement needs to stop, then the stopping response is immediate and simple, but it may obstruct passage of other persons and vehicles, thereby making it difficult to ensure safety

Engineering Contradiction:
ImprovesafetyVSAvoidobstruction of passage
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system performs preliminary determination of stoppable regions before executing the stop action. The controller refers to map information to identify safe stopping areas in advance, ensuring that when a stop is commanded, the mobile object can select a location that does not obstruct passage, thus resolving the contradiction between immediate stopping and safety

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Map information serves as an intermediary between the stop command and the actual stopping action. The controller uses this pre-stored spatial information to mediate the stopping decision, selecting locations within designated stoppable regions that avoid obstructing pedestrian or vehicle passages while still responding to stop requirements

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-generated harmful factors

If the mobile object continues moving without stopping when in prohibited stopping regions, then passage obstruction is avoided, but the mobile object cannot respond to necessary stopping requirements, compromising safety

Engineering Contradiction:
Improveobstruction of passageVSAvoidsafety
Core Design Contradiction:
Object-generated harmful factorsVSReliability

Solution Approach 1:

The space is segmented into stoppable regions and non-stoppable regions based on map information. This spatial segmentation allows the controller to make informed decisions about where stopping is permitted, ensuring that stops occur only in safe areas while still allowing necessary stops to be made within the stoppable regions

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The stopping behavior is made dynamic based on the mobile object's current position relative to predefined regions. The controller dynamically adjusts stopping permission based on real-time location data, allowing stops in stoppable regions while preventing them in non-stoppable regions, thus balancing passage flow with safety requirements

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250271864A1Mobile object, control method for mobile object, and program
Publication Date: 2025.08.28 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • US20250271864A1 patent drawing
  • US20250271864A1 patent drawing
  • US20250271864A1 patent drawing

AI summary

A mobile object is a mobile object that performs autonomous movement based on map information in which a first region where the mobile object is not permitted to stop except when entering and a second region where the mobile object is not permitted to stop except when entering the first region are set, and the mobile object includes a first determiner that performs a first determination as to whether or not to stop the autonomous movement; and a second determiner that performs a second determination as to whether or not to stop the autonomous movement based on a position where the mobile object is located when the first determiner performs the first determination.