Electromagnetic Wave Reflectors for Factory Wireless Coverage

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Solution Overview

Problem

Radio communication environments in production facilities such as factories or plants are challenging due to interference from various machines and structures, making high-quality wireless communication difficult.

Innovation Solution

The use of electromagnetic wave reflectors along the production line to reflect radio waves efficiently, utilizing both normal and meta-reflectors to guide waves to desired directions, reducing the need for multiple base stations and improving communication quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple base stations are deployed to improve wireless communication coverage in production facilities, then communication quality is improved, but device complexity and cost increase

Engineering Contradiction:
Improvewireless communication qualityVSAvoidnumber of base stations
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces electromagnetic wave reflectors as intermediary devices to redirect and guide radio waves between base stations and mobile devices. These reflectors act as mediators that improve signal propagation without requiring additional base stations, thus maintaining communication quality while reducing system complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs meta-reflectors with adjustable reflection coefficients to dynamically control electromagnetic wave reflection characteristics. By changing the reflection parameters of existing infrastructure, the system optimizes wireless communication without adding more base stations, resolving the contradiction between communication quality and system complexity

Inventive Principle:
Principle #35Parameter changes

2Area of stationary object

If electromagnetic wave reflectors are used to direct radio waves, then space usage is optimized, but manufacturing and installation complexity increases

Engineering Contradiction:
Improvespace usage efficiencyVSAvoidinstallation complexity
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

The patent divides the electromagnetic wave reflector system into modular panels that can be independently manufactured and assembled. Each panel contains meta-reflectors with specific reflection characteristics, allowing flexible deployment and simplified installation while optimizing space usage in production facilities

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent designs universal electromagnetic wave reflector panels that can be deployed in various configurations and locations within production facilities. These multi-functional panels serve both as electromagnetic wave guides and as space-efficient structural elements, reducing installation complexity while maximizing space utilization

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances radio propagation and communication quality in production facilities by efficiently directing radio waves, reducing the number of required base stations and maintaining wireless connectivity while optimizing space usage.

Implementation Method 1

an electromagnetic wave reflector 10 having a reflective surface 105 that reflects radio waves

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP4131655B1Wireless transmission system
Publication Date: 2025.11.19 AGC INC
  • EP4131655B1 patent drawingFigure 1
  • EP4131655B1 patent drawingFigure 2
  • EP4131655B1 patent drawingFigure 3A~3C

AI summary

A wireless transmission system includes a base station that transmits and receives a radio wave in a frequency band selected from a range of 1 GHz to 170 GHz, and an electromagnetic wave reflector having a reflective surface that reflects the radio wave and provided along at least a part of a production line in which manufacturing equipment that transmits and receives the radio wave is used.