Universal Sensor Interface for Luminaire Field Replacement

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Solution Overview

Problem

Existing luminaire sensors become outdated quickly due to rapid technological changes, leading to inefficient and costly replacement methods that require licensed professionals and may not be compatible with new systems, limiting field replaceability and user accessibility.

Innovation Solution

A universal sensor interface system with a sensor receiving cavity and a removably coupled sensor device that enables wireless power transfer and data communication, allowing for easy field installation and replacement without disassembly, and includes a translator engine for compatibility with various systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the entire luminaire is replaced to upgrade the sensor, then the sensor technology is upgraded, but the replacement is inefficient and costly since the luminaire itself may still be functional for several years

Engineering Contradiction:
Improvesensor technology currencyVSAvoidreplacement efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The sensor system is segmented into a separate replaceable module that can be independently upgraded without replacing the entire luminaire. The sensor device is housed in its own cavity with dedicated mounting features, allowing it to be replaced like a light bulb while the luminaire remains in service.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor is extracted from the integrated luminaire structure and placed in a separate, removable housing. This extraction allows the sensor to be replaced independently, eliminating the need to replace the entire luminaire when upgrading sensor technology.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the integrated sensor is replaced by a licensed professional, then the sensor is replaced, but the process is complicated and time-consuming due to safety requirements and disassembly needs

Engineering Contradiction:
Improvesensor replacement safetyVSAvoidsensor replacement simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sensor module is designed for self-service replacement by end users without requiring licensed professionals. The modular design with external mounting features allows users to safely replace the sensor themselves, eliminating the need for professional intervention and complex disassembly procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The traditional mechanical fastening system requiring tools and disassembly is replaced with a magnetic coupling system. The magnetic attachment allows the sensor module to be easily attached and detached without tools, simplifying the replacement process while maintaining safety through proper electrical isolation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of repair

If the luminaire structure is modified to allow easy sensor replacement, then field replaceability is improved, but the luminaire design complexity increases

Engineering Contradiction:
Improvesensor field replaceabilityVSAvoidluminaire structure complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The magnetic coupling mechanism serves multiple functions: it provides easy attachment and detachment of the sensor module, ensures proper alignment, and maintains electrical isolation. This universal approach simplifies the overall design while enabling easy field replacement without adding significant complexity.

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

4Reliability

If traditional cable connections are used for sensor power and data, then electrical connection is established, but the replacement process requires cutting power and disassembly

Engineering Contradiction:
Improveelectrical connection stabilityVSAvoidreplacement accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

Traditional mechanical cable connections requiring disassembly and power shutdown are replaced with wireless power and data transmission systems. The sensor module communicates with the luminaire controller through wireless signals, allowing replacement without touching electrical components or cutting power.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Wireless communication signals serve as an intermediary between the sensor module and the luminaire controller, transferring power and data without physical cable connections. This intermediary system enables hot-swapping of the sensor module without electrical disconnection or power interruption.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables end-users to easily replace sensors like light bulbs, ensuring compatibility and safety, reducing costs and complexity by allowing any sensor to communicate with luminaires and lighting control systems, eliminating the need for licensed professionals.

Implementation Method 1

the luminaire comprises a magnetic layer disposed adjacent the sensor receiving cavity defined by the sensor receiving receptacle to magnetically couple the sensor device to the luminaire

Methodology Applied
Scientific EffectMagnetic coupling: Magnetism

Implementation Method 2

the power transfer unit includes an inductive coil that is configured to wirelessly transfer the electrical energy from the luminaire to the sensor device through electromagnetic induction

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11019704B2Universal sensor interface system for luminaires
Publication Date: 2021.05.25 SIGNIFY HOLDING BV
  • US11019704B2 patent drawing
  • US11019704B2 patent drawing
  • US11019704B2 patent drawing

AI summary

A universal sensor interface system for a luminaire includes a sensor receiving cavity that is formed in the luminaire and defined by a sensor receiving receptacle. Further, the universal sensor interface system includes a sensor device that is configured to be removably coupled to the sensor receiving receptacle of the luminaire and disposed in the sensor receiving cavity. The sensor device receives electrical energy from the luminaire and establishes data communication with the luminaire when the sensor device is disposed in the sensor receiving cavity. The transfer of electrical energy and data communication between the luminaire and the sensor device are enabled either wirelessly or using connector systems such as a pogo connector system. The luminaire includes a translation engine that is configured to transform data received from the sensor device to a format that is compatible with the luminaire and/or a light control system of the luminaire and vice-versa.