Illumination-Balancing Lighting Control for Fixture Failure Compensation

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Solution Overview

Problem

Current lighting systems fail to provide a mechanism to maintain consistent illumination when one or more lighting devices malfunction, leading to decreased zone illumination.

Innovation Solution

A lighting system with a control module that transmits malfunction signals via wireless communication to adjacent devices, adjusting their brightness to maintain predetermined zone illumination using identification codes and light intensity detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a lighting device malfunctions, then the illumination of the lighting zone decreases, but the system lacks a mechanism to maintain consistent illumination levels

Engineering Contradiction:

Improveillumination consistencyVSAvoidzone illumination level

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The system implements a feedback mechanism where malfunctioning lighting devices send signals to adjacent devices, which then adjust their brightness automatically to compensate for the loss, maintaining consistent illumination levels across the lighting zone

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system changes the operating parameter (brightness) of adjacent lighting devices dynamically in response to malfunctions, increasing their brightness to compensate for the reduced illumination caused by malfunctioning devices

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the brightness of adjacent lighting devices increases to compensate for malfunctioning devices, then the illumination consistency is improved, but the energy consumption increases

Engineering Contradiction:

Improveillumination consistencyVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system applies partial compensation by increasing the brightness of only adjacent lighting devices rather than all devices in the zone, achieving illumination consistency while minimizing unnecessary energy consumption from devices that do not need adjustment

Inventive Principle:

Principle #16Partial or excessive action

3Reliability

If the system implements automatic illumination balancing, then the illumination consistency is improved, but the device complexity increases

Engineering Contradiction:

Improveillumination consistencyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system implements self-service functionality where lighting devices automatically detect malfunctions and adjust their own brightness or neighboring devices' brightness without requiring external control systems, reducing overall system complexity while maintaining illumination consistency

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP4181632B1Lighting system with illumination-balancing function and control method thereof

Publication Date: 2025.11.12 XIAMEN PVTECH CO LTD

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AI summary

A lighting system with illumination-balancing function is provided, which includes a plurality of lighting devices distributed over a lighting zone. Each of the lighting devices includes a control module and a light-emitting module. The light-emitting module is connected to the control module. When the light-emitting module malfunctions, the control module transmits a malfunctioning signal to the other lighting devices not malfunctioning, such that the brightness of each of the lighting devices, not malfunctioning and adjacent to the lighting device malfunctioning, increases so as to make the illumination of the lighting zone be substantially equal to a predetermined value.