Vehicle-Mounted Communication Control With Centralized Port Mapping

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Solution Overview

Problem

Existing vehicle-mounted communication systems lack flexibility in supporting the addition of new functions, requiring updates in both the integrated and peripheral vehicle-mounted apparatuses when new devices are added.

Innovation Solution

A vehicle-mounted apparatus that collectively manages information on communication ports and devices, allowing updates only at the integrated apparatus, reducing the need for updates at peripheral apparatuses and simplifying the addition of new functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If each peripheral vehicle-mounted apparatus stores port information indicating correspondence between communication ports and devices, then the system can manage device connections locally, but updates must be performed at both the integrated apparatus and all peripheral apparatuses when new devices are added, increasing user tasks and reducing flexibility

Engineering Contradiction:

Improveflexibility in adding new functionsVSAvoiduser tasks for updating port information

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the port information management function from peripheral apparatuses to the integrated vehicle-mounted apparatus. The integrated apparatus now centrally stores and manages port information indicating correspondence between communication ports of peripheral apparatuses and connected devices, eliminating the need for peripheral apparatuses to maintain separate copies of this information.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated vehicle-mounted apparatus acts as an intermediary that manages port information centrally. When new devices are added, the integrated apparatus updates the port information and transmits updated frames to peripheral apparatuses, serving as a mediator that coordinates changes across the network without requiring direct updates at each peripheral device.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If peripheral vehicle-mounted apparatuses store port information locally, then local device management is possible, but the system complexity increases when new devices need to be integrated

Engineering Contradiction:

Improveease of adding new devicesVSAvoidsystem complexity in managing port information

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent consolidates port information storage and management into the integrated vehicle-mounted apparatus. This centralization reduces the complexity of system-wide updates by eliminating the need to coordinate changes across multiple peripheral apparatuses, while still maintaining the ability to manage device connections at the network level.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated vehicle-mounted apparatus performs multiple functions including central port information management, frame transmission, and coordination of device connections. This multi-functionality reduces overall system complexity by consolidating management responsibilities into a single apparatus that can handle various tasks related to device integration and communication.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If the system requires updates at both integrated and peripheral apparatuses when new devices are added, then all apparatuses have current port information, but the time required for updates increases

Engineering Contradiction:

Improveaccuracy of port informationVSAvoidupdate time for port information

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The integrated vehicle-mounted apparatus proactively transmits frames containing updated port information to peripheral apparatuses after making changes. This preliminary action ensures that peripheral apparatuses receive the necessary updates without needing to actively query or check for changes, reducing the time required for information synchronization while maintaining accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the integrated apparatus monitors port information changes and automatically transmits updated frames to peripheral apparatuses. This feedback loop ensures that all apparatuses maintain accurate port information without requiring manual intervention or extensive update coordination, reducing overall update time while preserving information accuracy.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12461865B2Vehicle-mounted apparatus, vehicle-mounted communication system, and communication control method

Publication Date: 2025.11.04 AUTONETWORKS TECH LTD

AI summary

A vehicle-mounted apparatus that is connected to a plurality of peripheral vehicle-mounted apparatuses, wherein each of the peripheral vehicle-mounted apparatuses includes a plurality of communication ports. The vehicle-mounted apparatus includes: a storage unit that stores port information indicating correspondence between the plurality of communication ports in each peripheral vehicle-mounted apparatus and devices connected to the communication ports; and a transmission unit that includes, based on the port information stored in the storage unit, output destination information indicating a communication port, out of the plurality of communication ports, to be used as an output destination of one of control information for controlling a device and device control information based on the control information in a frame together with the control information and transmits the frame to the peripheral vehicle-mounted apparatuses.