Door-Mounted Fire Detection System with Flexible Bridge

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Solution Overview

Problem

Current fire detectors face challenges such as difficult installation, limited effectiveness due to door obstruction, inability to assist deaf individuals, and lack of escape route guidance, despite recommendations for their use in housing.

Innovation Solution

A fire detection system comprising two interconnected fire detection elements with lighting means, preferably LEDs, mounted on both sides of a door using a flexible bridge, allowing for easy placement and providing visual cues for escape routes, and connectivity to smartphones or alarm centers for enhanced functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fire detectors are mounted on doors using traditional screw fixation methods, then reliable detection is achieved, but installation becomes complex requiring drill and ladder

Engineering Contradiction:
Improvedetection effectivenessVSAvoidinstallation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the fastening function from the detector unit itself and separates it into a door-mounted base that remains fixed while the detector can be independently positioned or replaced without complex installation tools

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a door-mounted base as an intermediary element that simplifies installation by providing a pre-prepared mounting platform on the door, eliminating the need for drill and ladder during detector deployment

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If acoustic alarm signals are used in fire detectors, then warning capability is provided, but deaf individuals cannot be alerted

Engineering Contradiction:
Improvewarning effectivenessVSAvoidaccessibility for deaf individuals
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies multi-functionality by equipping the fire detector with both acoustic alarm signals and visual light signals, enabling the device to serve multiple user groups including hearing and deaf individuals simultaneously

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

Solution Approach 2:

The patent uses color changes in the light-emitting components to provide visual alarm signals that can be perceived by deaf individuals, with different colors potentially indicating different alarm states or escape route conditions

Inventive Principle:
Principle #32Color changes

3Measurement precision

If detectors are positioned to avoid door obstruction, then detection sensitivity is improved, but escape route guidance capability is lost

Engineering Contradiction:
Improvesmoke detection sensitivityVSAvoidescape route information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent applies local quality by positioning detectors at specific locations that optimize both smoke detection sensitivity and escape route visibility, with detectors strategically placed to monitor both fire conditions and provide directional guidance information

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses color-coded light signals to convey escape route information, with different colors indicating safe escape paths versus dangerous areas, enabling visual guidance while maintaining detection effectiveness

Inventive Principle:
Principle #32Color changes

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

Facilitates early and effective smoke detection, provides visual alerts for deaf individuals, indicates safe escape routes, and integrates seamlessly with existing systems for improved fire safety without requiring complex installation tools.

Implementation Method 1

Optical detectors: detect visible smoke by means of absorption or diffusion of the light

Methodology Applied
Scientific EffectAbsorption of light: Absorption (EM radiation)

Implementation Method 2

Optical detectors: detect visible smoke by means of absorption or diffusion of the light

Methodology Applied
Scientific EffectDiffusion of light: Scattering

Implementation Method 3

the first fire detection element (1) has some lighting means (4), while the second fire detection element (2) has some lighting means (5)

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentEP3309760B1Fire safety system
Publication Date: 2019.04.10 ROMERO REDONDO ALFREDO
  • EP3309760B1 patent drawingFigure 1
  • EP3309760B1 patent drawingFigure 2

AI summary

Security system against the risk of fire comprising a first fire detection element (1) connected by a flexible bridge (3) to a second fire detection element (2), with the first fire detection element (1) having some first means of lighting (4), while the second fire detection element (2) has some means of lighting (5), where the means of lighting are LEDs, in different colours, whereby achieving an easy to position detection system without any installation, that is valid for the deaf and provides information on escape routes. The system is designed to be mounted on the top edge of doors or elements of passage.