Modular Vehicle Light Signaling Device Wireless Control

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Solution Overview

Problem

Modular light signaling devices for vehicles face challenges with electromagnetic compatibility and complex wiring, leading to increased repair times and limited customization options due to the complexity of electrical and mechanical connections between modules.

Innovation Solution

A modular light signaling device with a master module and slave modules connected via a male/female interlocking mechanism and wireless electronic connectors, eliminating the need for wired connections and simplifying the replacement process, while maintaining electromagnetic compatibility through dedicated power and data conductors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If modular light signaling devices use multiple light sources with different functions, then the functionality and versatility of the device is improved, but the number of wires in the dedicated wired network increases and electromagnetic compatibility deteriorates

Engineering Contradiction:
ImprovefunctionalityVSAvoidwiring complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical wired connection system with a wireless communication system. Each module is equipped with a wireless transceiver that communicates with the control unit and other modules via wireless signals, eliminating the need for extensive wired networks while maintaining full functionality of multiple light sources with different functions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If electromagnetic shielding is implemented around cables supplying light sources, then electromagnetic interference is reduced, but the device complexity and installation difficulty increase

Engineering Contradiction:
Improveelectromagnetic interferenceVSAvoidshielding complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent eliminates the need for electromagnetic shielding by replacing wired cable systems with wireless communication. The wireless transceivers in each module communicate without requiring physical cable connections, thereby removing the source of electromagnetic interference that would require shielding.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the number of light sources in the light bar increases, then the versatility and signaling capability are improved, but the risk of defective sources increases and repair time increases

Engineering Contradiction:
Improvesignaling capabilityVSAvoidrepair time
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

The patent divides the light signaling device into independent modular units, each containing one or more light sources. When a defect occurs in one module, only that specific module needs to be replaced rather than the entire light bar. The control unit automatically detects the defective module and manages the replacement process, minimizing repair time and maintaining signaling capability with multiple light sources.

Inventive Principle:
Principle #1Segmentation

4Ease of repair

If modular light bars are used to enable module replacement, then repair time is reduced, but the complexity of electrical and mechanical connections between modules increases

Engineering Contradiction:
Improvemodule replacement speedVSAvoidconnection complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The patent replaces complex electrical and mechanical wired connections between modules with wireless communication. Each module contains a wireless transceiver that automatically establishes communication with adjacent modules and the control unit. This eliminates the need for complex connector assemblies while enabling quick module replacement through simple mechanical attachment without wiring operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3756948B1Modular light signalling device for a vehicle
Publication Date: 2022.04.27 VIGNAL SYST
  • EP3756948B1 patent drawingFigure 1~2
  • EP3756948B1 patent drawingFigure 3~4
  • EP3756948B1 patent drawingFigure 5~7

AI summary

The present invention relates to a modular light signaling device (1) for vehicle, comprising a plurality of modules (2, 2a, 2b, 2c), each module being equipped with one or more light function(s) (7, 7a, 7b, 7c, 7d, 7e), characterized in that the plurality of modules comprises at least one master module (2a) and at least one slave module (2b), said master module comprising a control unit capable of controlling the light function(s) of said master module and said slave module.