Vehicle Communication Mode Switching for Server Load Control

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Solution Overview

Problem

Existing vehicle information communication systems face increased server load and reduced control speed as the number of vehicles increases, necessitating a method to manage communication efficiently and maintain real-time data exchange.

Innovation Solution

A vehicle information communication system that switches between two communication modes: a first mode where the server communicates individually with each vehicle and a second mode using vehicle-to-vehicle communication with blockchain authentication, distributing the load and ensuring reliable data sharing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the server communicates individually with each vehicle (first communication mode), then real-time information exchange is achieved, but server load increases when the number of vehicles increases

Engineering Contradiction:
Improvereal-time information exchangeVSAvoidserver load
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the communication system into two distinct communication modes: individual server-vehicle communication (first mode) and distributed vehicle-to-vehicle communication (second mode). This segmentation allows the system to switch between centralized and decentralized communication approaches, thereby managing server load while maintaining real-time information exchange capabilities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic switching between two communication modes based on server load conditions. When server load is low, the system uses individual communication for real-time accuracy. When server load increases, the system transitions to distributed vehicle-to-vehicle communication, making the communication architecture flexible and adaptive to changing conditions.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the server executes entire control for all vehicles, then comprehensive control and safety are improved, but control speed reduces when the number of vehicles increases

Engineering Contradiction:
Improvecomprehensive controlVSAvoidcontrol speed
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The patent divides the control function into two parts: comprehensive control decisions made by the server, and local control execution performed by individual vehicles. This segmentation allows the server to maintain overall system safety and coordination while individual vehicles execute control actions locally, improving response speed without sacrificing comprehensive control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent enables vehicles to perform self-service control execution based on commands received from the server. Each vehicle independently executes control actions locally without requiring continuous server intervention, thereby maintaining comprehensive control oversight while significantly improving control speed and reducing server processing burden.

Inventive Principle:
Principle #25Self-service

3Device complexity

If distributed vehicle-to-vehicle communication is used (second communication mode), then server load is reduced, but real-time data exchange capability is compromised

Engineering Contradiction:
Improveserver loadVSAvoidreal-time data exchange
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements dynamic mode switching that adapts to server load conditions. When server load is low, the system switches to individual communication mode to ensure real-time data exchange. When server load is high, it transitions to distributed vehicle-to-vehicle communication mode, making the system dynamically optimize between real-time capability and server load management.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The server acts as an intermediary that coordinates between individual vehicles and the distributed communication network. It manages the switching between communication modes and ensures that real-time data exchange requirements are met when necessary, while allowing load reduction through distributed communication when appropriate.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11245749B2Vehicle information communication system and environment improvement system, and server used therein
Publication Date: 2022.02.08 TOYOTA JIDOSHA KK
  • US11245749B2 patent drawing
  • US11245749B2 patent drawing
  • US11245749B2 patent drawing

AI summary

A vehicle information communication system includes: a plurality of vehicles; and a server configured to communicate with the plurality of vehicles. The server is configured to perform communication by using either a first communication mode or a second communication mode. In the first communication mode, the server receives and transmits information to and from each of the plurality of vehicles individually. In the second communication mode, the server receives and transmits the information to and from a part of the plurality of vehicles and the information is shared among the plurality of vehicles by using vehicle-to-vehicle communication.