Modular Emergency Light with Sensor-Controlled Power Adjustment

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Solution Overview

Problem

Handheld emergency lights used by rescue workers face a trade-off between service life and brightness, as high brightness requirements for portable searchlights increase electrical power consumption, limiting overall service life, and handling is compromised by large energy stores.

Innovation Solution

A modular emergency light system that can be used independently or attached to a hand lamp housing, featuring a sensor-controlled lighting arrangement that adjusts power and mode based on attachment state, allowing for flexible operation and extended service life without compromising brightness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If the energy storage device is made larger to increase operating time, then the service life is improved, but the handling is compromised and the device becomes heavier

Engineering Contradiction:
Improveoperating timeVSAvoidhandling
Core Design Contradiction:
Duration of action of moving objectVSEase of operation

Solution Approach 1:

The system is divided into two separate components: a handheld emergency light unit and a separate handheld spotlight housing. The emergency light contains only the necessary minimal components for basic functionality, while the spotlight housing provides additional functionality when needed. This segmentation allows the emergency light to remain lightweight and easy to handle while still providing extended operating time through its optimized energy storage device.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The emergency light is designed to serve multiple functions: it can operate independently as a handheld emergency light, or it can be attached to the handheld spotlight housing to function as a spotlight. This multi-functionality allows the same device to provide different levels of illumination based on the situation, optimizing both handling and operational capabilities.

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

2Illumination intensity

If the brightness and range are increased for portable searchlights, then the illumination intensity is improved, but the electrical power consumption increases and operating time is limited

Engineering Contradiction:
ImprovebrightnessVSAvoidoperating time
Core Design Contradiction:
Illumination intensityVSDuration of action of moving object

Solution Approach 1:

The system dynamically adjusts its functionality based on the attachment state. When the emergency light is attached to the handheld spotlight housing, it operates in spotlight mode with higher brightness and power consumption. When detached, it operates in emergency light mode with lower power consumption and extended operating time. This dynamic adaptation resolves the contradiction by allowing the system to optimize for brightness when needed and for operating time when portability is the priority.

Inventive Principle:
Principle #15Dynamics

3Illumination intensity

If the emergency light is used as a handheld spotlight with higher power requirements, then the illumination intensity is improved, but the service life is reduced

Engineering Contradiction:
Improvelight outputVSAvoidservice life
Core Design Contradiction:
Illumination intensityVSDuration of action of stationary object

Solution Approach 1:

The system separates the emergency light functionality from the spotlight functionality into distinct components. The emergency light unit contains the energy storage device optimized for extended operation, while the spotlight housing provides the optical system for high-intensity illumination. This segmentation allows each component to be optimized for its specific function without compromising the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system changes its operational parameters based on the attachment state. When attached to the spotlight housing, the emergency light operates at higher power levels to provide the required illumination intensity for spotlight functionality. When detached, it operates at reduced power levels to maximize service life. This parameter adaptation allows the system to resolve the contradiction between light output and service life by selecting appropriate operating conditions based on the application.

Inventive Principle:
Principle #35Parameter 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

The system provides flexible lighting options and extended service life by reducing power consumption when used alone and increasing it when attached to a hand lamp housing, ensuring adequate brightness and longevity depending on usage.

Implementation Method 1

The change from the first to the second state can be initiated or triggered by mechanical contact or without physical contact

Methodology Applied
Scientific EffectMagnetic field interaction: Magnetic Field

Data Source

PatentEP4163534A1Assembly comprising an insertion light and a hand lamp housing
Publication Date: 2023.04.12 METALLWARENFAB GEMMINGEN
  • EP4163534A1 patent drawingFigure 1
  • EP4163534A1 patent drawingFigure 2
  • EP4163534A1 patent drawingFigure 3

AI summary

The invention relates to an arrangement (15) comprising an individually usable auxiliary light (16) and a handheld spotlight housing (17) detachably connected to the auxiliary light (16). The handheld spotlight housing (17) does not, for example, include any components that require or provide electrical energy. The auxiliary light (16) has a light source assembly (22), a control unit (65) that controls the light source assembly (22), and a sensor (66) that communicates with the control unit (65). The sensor (66) indicates whether the auxiliary light (16) is used separately or in combination with the handheld spotlight housing (17) as a handheld spotlight. Depending on this, the control unit (65) can change one or more parameters of the light emitted by the light source assembly (22).In particular, the light output of the light source arrangement (22) can be greater when using the insert light (16) together with the handheld spotlight housing (17) as a handheld spotlight than when used without the handheld spotlight housing (17).