Master-Slave Wireless Modules for Flexible Vehicle Placement

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Solution Overview

Problem

Existing wireless communication systems in vehicles face challenges in securing desired functions and ranges with single communication modules, leading to increased wiring costs, reduced design freedom, and limited module placement due to wired connections.

Innovation Solution

A wireless communication system utilizing a master and slave communication modules connected via wireless power and identification data, including RTC data and RSSI, for secure network configuration and authentication, allowing modules to operate independently and reconnect automatically upon power initialization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wired connections are used between communication modules, then connection stability is improved, but wiring costs increase and design freedom is reduced

Engineering Contradiction:

Improveconnection stabilityVSAvoidwiring complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical wired connection system with a wireless communication system. The master and slave communication modules establish connections through wireless signals (Bluetooth, Wi-Fi, or other wireless protocols) instead of physical wires, eliminating the need for wiring while maintaining communication functionality. This substitution resolves the contradiction by removing the mechanical connection layer entirely.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a wireless communication protocol as an intermediary between communication modules. This protocol layer handles data transmission, authentication, and connection management without requiring physical wiring. The intermediary wireless communication system bridges the modules while avoiding the complexity of wired connections.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If wired connections are used between communication modules, then connection reliability is improved, but module placement freedom is limited

Engineering Contradiction:

Improveconnection reliabilityVSAvoidmodule placement freedom

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

By replacing wired connections with wireless communication, the patent eliminates the physical constraints that limited module placement. Modules can now be positioned anywhere within wireless range, enabling flexible installation in vehicles or other applications without being constrained by wiring routes or physical connections.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Area of stationary object

If multiple communication modules are used to extend range, then communication coverage is improved, but system complexity increases

Engineering Contradiction:

Improvecommunication rangeVSAvoidsystem complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent divides the communication system into a master module and multiple slave modules, each with independent wireless communication capabilities. This segmentation allows each module to operate autonomously while contributing to the overall network, extending coverage without proportionally increasing system complexity through standardized module designs.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent designs communication modules with universal functionality that can operate in multiple roles (master or slave) and support various wireless protocols. This multi-functionality reduces system complexity by using standardized, interchangeable modules rather than specialized components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If wireless connection uses authentication data, then security is improved, but connection time increases

Engineering Contradiction:

Improveconnection securityVSAvoidconnection establishment time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary authentication by storing authentication data (such as device IDs, encryption keys, or certificates) in the communication modules before actual connection is needed. When modules need to connect, they retrieve and verify this pre-stored authentication data, significantly reducing the time required for security verification compared to real-time authentication protocols.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12413381B2Wireless communication system

Publication Date: 2025.09.09 LG INNOTEK CO LTD

AI summary

A wireless communication system, according to one embodiment of the present invention, comprises: a first communication module; and at least one second communication module wirelessly connected to the first communication module, wherein the first communication module is wirelessly connected to the second communication module to which driving power is applied from the same power source as that of the first communication module.