Programmable LED Lighting Device Using Coded Power Interruptions
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Solution Overview
Problem
Existing underwater LED spotlights for aquatic environments, such as swimming pools, face limitations in remotely controlling and synchronizing color changes across multiple devices, requiring complex and costly receiver systems, and existing methods for changing colors are cumbersome and prone to errors due to the need for precise power cuts.
Innovation Solution
A programmable LED lighting device featuring a control box with an interrupting device that transmits commands as combinations of short and long power cuts, interpreted by a microprocessor-equipped detector in the spotlights, allowing for simple, inexpensive, and instantaneous color changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If remote control is implemented using radio-electric waves or wires with receivers, then color changes can be controlled, but the receiver becomes complex and costly
Solution Approach 1:
The patent replaces complex electronic receiver systems with a simple power cut detection mechanism. Instead of using radio-electric waves or wired receivers, the control system utilizes the existing power supply infrastructure by modulating it with coded power cuts. The spotlights detect these power interruptions through their power supply circuits, eliminating the need for separate communication receivers and reducing system complexity.
Solution Approach 2:
The power supply circuit serves dual functions: it provides electrical power to the LEDs and simultaneously transmits control signals through coded power cuts. This multi-functionality eliminates the need for separate communication hardware, as the same power infrastructure is used for both energy delivery and information transmission.
2Adaptability or versatility
If sequential power cuts are used to change colors, then color selection is possible, but the process is time-consuming and error-prone
Solution Approach 1:
The control system pre-encodes the desired color information into a single power cut sequence before transmission. Instead of performing multiple sequential power cuts to increment through colors, the complete color selection information is prepared in advance and transmitted in one coded message, allowing the spotlight to instantly decode and switch to the desired color.
Solution Approach 2:
The patent uses periodic power cuts with specific timing patterns to encode color information. By varying the frequency and duration of power interruptions in coded sequences, multiple color selections can be transmitted rapidly without requiring lengthy sequential adjustments, significantly reducing the time needed for color changes.
3Measurement precision
If power cuts are made too short or too long, then detection accuracy improves, but the vocabulary of controllable states is restricted
Solution Approach 1:
The patent transitions from using only power cut duration as the coding dimension to utilizing multiple dimensions: duration, frequency, and patterns of power cuts. This multi-dimensional encoding approach allows the system to maintain precise detection thresholds while expanding the vocabulary of controllable states, as information is distributed across multiple temporal characteristics rather than relying on a single parameter.
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 easy and instant color changes with reduced error rates and eliminates the need for complex receivers, allowing for synchronized operation of multiple spotlights with a larger vocabulary of color options and remote control capabilities.
Implementation Method 1
at least one light source constituted by a set of LEDs capable of emitting light of different colors
Data Source
AI summary
The invention relates to a lighting device and method, in particular underwater, including: a plurality of spotlights comprising at least one light source nude up of a set of LEDs, the spotlights being connected to an electric power source; and at least one control housing connected to said power source and communicating with each one of the spotlights, said control housing being provided with a cut-off device configured to transmit control instructions via a power cut-off member to the spotlights, which are provided with an on-board detector having a microprocessor configured such as to interpret said control instructions and to adjust a signal capable of modifying the color of each one of the LEDs that make up the set of LEDs, characterised in that the control instructions transmitted by the cut-off device are transmitted in the form of a code made up of combinations of power cut-offs with various durations.