LED Retrofit Kit for HID Fixtures with Wireless Control

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Solution Overview

Problem

High intensity discharge light fixtures, such as mercury vapor, metal halide, and high pressure sodium lights, are inefficient and consume large amounts of electricity, necessitating a retrofit solution that achieves equivalent light output with the improved efficiency of LED technology.

Innovation Solution

A retrofit kit for high intensity discharge light fixtures that includes LED light sources, a driver for power transformation, a dimmer for adjustable lighting, thermal management, and a wireless communication network for control and monitoring, allowing for reduced power consumption and customizable lighting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If high intensity discharge light fixtures are used to provide adequate light output for large areas, then sufficient illumination is achieved, but electrical power consumption increases significantly

Engineering Contradiction:

Improvelight outputVSAvoidelectrical power consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent changes the fundamental operating parameters of the lighting system by replacing HID lamps with LED modules that have different luminous efficacy characteristics. The LED modules are designed to operate at lower power consumption levels while maintaining comparable or superior light output through improved conversion efficiency of electrical energy to light.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent substitutes the traditional HID lighting mechanism with an LED-based system that uses solid-state electroluminescence instead of gas discharge and arc mechanisms. This replacement eliminates the inefficient thermal conversion processes of HID lamps and directly converts electrical energy to light through LED diodes.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Loss of energy

If LED light sources are installed to reduce power consumption, then electrical efficiency improves, but the system complexity increases due to additional control components

Engineering Contradiction:

Improvepower consumption reductionVSAvoidsystem complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent integrates multiple functions into the LED lighting system including dimming control, day/night operation modes, and security illumination capabilities through a single integrated controller unit. This multi-functionality approach reduces the need for separate control devices and simplifies the overall system architecture despite the advanced electronics required for LED operation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent incorporates automatic control features where the system autonomously adjusts operation based on environmental conditions such as ambient light levels detected by photodetectors and motion sensor inputs. The system self-regulates power consumption and illumination levels without requiring constant manual intervention, reducing operational complexity.

Inventive Principle:

Principle #25Self-service

3Reliability

If thermal management systems are added to handle LED heat generation, then LED longevity and performance are maintained, but device complexity and installation requirements increase

Engineering Contradiction:

ImproveLED operational stabilityVSAvoidthermal management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces thermal management components such as heat sinks and ventilation systems that act as intermediaries between the LED light sources and the surrounding environment. These thermal management elements facilitate passive or active heat dissipation, maintaining optimal operating temperatures for the LEDs without requiring complex active cooling systems.

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

The kit reduces electrical power consumption by over 50%, provides adjustable and efficient lighting, and enables remote control and monitoring of LED light units, enhancing security and operational efficiency.

Implementation Method 1

The kit also includes one or more LED light sources, with the LED light sources providing 600 lumens or more of light

Methodology Applied

Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 2

The kit may include a driver, by which input power is transformed and conditioned to supply power to the LED light sources

Methodology Applied

Scientific EffectPower transformation:

Implementation Method 3

A thermal managing system is present so that heat generated from the LED light sources does not result in a thermal overload of the LED light sources

Methodology Applied

Scientific EffectThermal management:

Data Source

PatentUS8777453B2LED replacement kit for high intensity discharge light fixtures

Publication Date: 2014.07.15 DONEGAN DANIEL

AI summary

Disclosed is a kit for converting an existing high discharge light unit to an LED based light unit, with the option of including a networked capability among a group of LED light units. The kit includes a drop-in component mounting plate on which are mounted an LED light source, sensors including a thermal sensor, a control unit, a DC power supply, a heat sink, and a dimmer unit. A wireless transceiver allows the LED light units to operate as a network, with two way flow of information from the LED light units to a control unit.