Stepwise Lighting Control Using Master-Slave Signal Strength

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Solution Overview

Problem

Existing intelligent lighting systems face high installation and maintenance costs due to complex network configurations, require intermediary devices for signal transmission, and are prone to failure under excessive network traffic, with increased software and hardware costs due to complex protocol codes.

Innovation Solution

A lighting system with a master mode-based mechanism where one lighting device becomes a master upon detecting a moving object, broadcasting a control signal, and other devices adjust their brightness based on signal strength, eliminating the need for complex networks and protocol codes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing intelligent lighting systems use complex network installation and configuration, then lighting control functionality is achieved, but installation cost and system complexity increase significantly

Engineering Contradiction:

Improvelighting control functionalityVSAvoidnetwork installation and configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the control signal transmission function from complex network infrastructure and implements it directly through light emission. The master lighting device emits control signals as light, which slave devices detect and process, eliminating the need for separate communication networks and reducing installation complexity while maintaining lighting control functionality.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The lighting devices serve dual purposes: they provide illumination and simultaneously function as control signal transmitters and receivers. The master device emits both light for illumination and encoded control signals, while slave devices receive both illumination and control instructions, reducing the need for separate control infrastructure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If intermediary devices are used for signal transmission in existing systems, then signal relay is achieved, but network traffic increases and system stability decreases under excessive traffic

Engineering Contradiction:

Improvesignal transmissionVSAvoidnetwork traffic

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent removes intermediary signal transmission devices from the system. Instead of using separate communication infrastructure with multiple relays, the control signals are transmitted directly through light from the master device to slave devices, reducing network traffic and eliminating points of failure while maintaining reliable signal transmission.

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If complex protocol codes are implemented in lighting devices, then intelligent control is achieved, but software and hardware costs increase significantly

Engineering Contradiction:

Improveintelligent controlVSAvoidsoftware and hardware costs

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent employs simple, cost-effective light emission and detection components rather than expensive complex protocol processing hardware and software. The control mechanism uses basic optical components that are inexpensive to manufacture, reducing both hardware and software costs while maintaining intelligent lighting control capability.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent replaces electronic communication protocols with optical signal transmission. Instead of using complex digital protocols requiring sophisticated processors and communication interfaces, the system uses light emission and detection, which can be implemented with simpler, less expensive components while achieving the same control functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

This approach reduces installation costs, enhances stability by avoiding network traffic failures, and lowers manufacturing and maintenance costs while providing optimal illumination with a stepwise lighting effect.

Implementation Method 1

the master lighting device is configured to emit light and broadcast a control signal

Methodology Applied

Scientific EffectLight emission: Light Emitting Diode

Implementation Method 2

each controlled lighting device is configured to emit light based on a signal strength of the control signal being received

Methodology Applied

Scientific EffectSignal strength detection: Photoelectric Effect

Data Source

PatentUS20260075691A1Lighting system with stepwise lighting function and control method thereof

Publication Date: 2026.03.12 XIAMEN PVTECH CO LTD

AI summary

A lighting system with stepwise lighting function includes multiple lighting devices distributed within a preset area and communicating with each other. Any one of the lighting devices is configured to, upon detecting a moving object, continuously generate a detection signal and enter a master mode. The lighting device entering the master mode functions as a master lighting device and remaining one or more of the lighting devices function as one or more controlled lighting devices. The master lighting device is configured to emit light and broadcast a control signal, and each controlled lighting device is configured to emit light based on a signal strength of the control signal being received.