Emergency Lighting Reset Control for Safe Illumination Transition

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Solution Overview

Problem

Emergency lighting systems often cause unsafe conditions by suddenly restoring normal lighting levels after an emergency, leading to potential accidents due to sudden changes in illumination, and existing solutions do not adequately address this issue.

Innovation Solution

An emergency lighting system with a reset control that maintains emergency lighting until a manual reset is actuated, ensuring safe transition back to normal lighting levels by integrating a reset control between the emergency condition detector and lighting control panel, and allowing compatibility with various emergency condition detectors and lighting components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automatic restoration of normal lighting levels is implemented after emergency condition ends, then system automation is improved, but safety is worsened due to sudden lighting changes causing trips and falls

Engineering Contradiction:

Improveautomatic restoration of lightingVSAvoidsudden lighting change causing accidents

Core Design Contradiction:

Extent of automationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary action by detecting the emergency condition end and preparing for restoration, but delays the actual lighting restoration until a reset signal is received. The control device holds the emergency lighting state until externally triggered, preventing premature restoration that could cause safety issues while maintaining automated detection capabilities.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

A manual reset mechanism serves as an intermediary between the automatic detection system and the lighting restoration. The reset device mediates the transition by requiring human confirmation before restoring normal lighting, thus bridging the gap between automated detection and safe execution of restoration.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If manual input is required before restoring normal lighting, then safety is improved by preventing accidental restoration, but ease of operation is worsened due to additional manual steps

Engineering Contradiction:

Improveaccidental restoration preventionVSAvoidmanual input requirement

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The reset function is extracted as a separate, dedicated component from the automatic control system. This separate reset device provides a clear, intentional manual input mechanism that is distinct from the automatic detection and control pathways, making the safety confirmation step explicit and deliberate while maintaining system simplicity.

Inventive Principle:

Principle #2Taking out (Extraction)

3Object-affected harmful factors

If emergency lighting is maintained until manual reset is actuated, then safety is improved through controlled transition, but loss of time occurs during the manual reset process

Engineering Contradiction:

Improvecontrolled transition safetyVSAvoidtime to manual reset

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The system provides self-service by automatically detecting when the emergency condition has ended and maintaining the emergency lighting state without requiring continuous manual monitoring or intervention. The automatic detection and holding functionality eliminates the need for constant human attention, and the reset process is simplified to a single intentional action rather than a complex procedure.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11139677B1Emergency lighting system and related devices and methods

Publication Date: 2021.10.05 ZIO HLDG LLC

AI summary

Unsafe restoration of normal lighting is prevented using a reset control communicating with an emergency condition detector and emergency lighting controller in a lighting system. The reset control can be integrated into other system components, like the emergency condition detector, or retrofit into an existing lighting system and configured to work with different types of emergency condition detectors and lighting controllers.