Mobile Data Relay Control for Poor Wireless Coverage

Solution Overview

Problem

Existing systems fail to deliver data to mobile bodies outside the communication range of a server due to poor radio wave conditions, preventing the transmission of delivery data including unique information to these mobile bodies.

Innovation Solution

A control method that utilizes schedule information to identify a second mobile body planned to move to the same area as a first mobile body in a state of poor communication, allowing delivery data to be transmitted to the second mobile body for relay to the first mobile body via short-range wireless communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a mobile body moves to an area with poor radio wave conditions, then it can operate independently in remote locations, but wireless communication with the server becomes impossible and data delivery fails

Engineering Contradiction:

Improveoperation in poor communication areasVSAvoiddata delivery reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a second mobile body as an intermediary to relay data from the server to the first mobile body in poor communication areas. The server transmits data to the second mobile body, which then wirelessly communicates the data to the first mobile body via vehicle-to-vehicle communication, enabling data delivery without direct server connection to the first mobile body

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary actions by transmitting data to the second mobile body in advance before the first mobile body needs it. The server sends data to the second mobile body proactively, and the second mobile body holds and relays the data when the first mobile body becomes available in the communication area, ensuring data is ready before needed

Inventive Principle:

Principle #10Preliminary action

2Device complexity

If direct wireless communication is used between server and mobile body, then data transmission is simple and direct, but communication fails in areas with poor radio wave conditions

Engineering Contradiction:

Improvecommunication system simplicityVSAvoidcommunication reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent introduces a second mobile body as an intermediary to relay data from the server to the first mobile body in poor communication areas. The server transmits data to the second mobile body, which then wirelessly communicates the data to the first mobile body via vehicle-to-vehicle communication, enabling data delivery without direct server connection to the first mobile body

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary actions by transmitting data to the second mobile body in advance before the first mobile body needs it. The server sends data to the second mobile body proactively, and the second mobile body holds and relays the data when the first mobile body becomes available in the communication area, ensuring data is ready before needed

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12488686B2Control method, server device, non-transitory computer readable storage medium, and data delivery system

Publication Date: 2025.12.02 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

A control method including, by a computer: acquiring schedule information indicating movement plans of a plurality of mobile bodies capable of short-range wireless communication with each other, when detecting that state information indicating a current state of a first mobile body among the plurality of mobile bodies is unable to be received from the first mobile body, searching for a second mobile body planned to move to a first area where the first mobile body is staying based on the schedule information; and transmitting delivery data for the first mobile body to the second mobile body.