Light String Switching Between Steady-On and Special Effects
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Solution Overview
Problem
Existing decorative lighting systems struggle to offer user-selectable options for both steady-on and special lighting effects like twinkling or color changing without requiring additional wiring or expensive addressable circuits.
Innovation Solution
A system with a first switching circuit controlling the current to illumination elements to produce steady-on and special lighting effects, and a second circuit interrupting the current at a frequency that creates the visual appearance of steady-on illumination by resetting the circuit to its initial state, allowing for user-selectable modes like twinkling or color changing without additional wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bulbs contain microcontrollers for individual control to achieve twinkling or special effects, then lighting effect versatility is improved, but device complexity and cost increase
Solution Approach 1:
A single controller circuit is designed to perform multiple functions by switching between different operational modes. The controller can operate in steady-on mode, twinkling mode, color-changing mode, or other special effects modes, eliminating the need for separate control circuits for each lighting effect. This is achieved through mode-selectable circuit configurations that reuse the same hardware resources.
Solution Approach 2:
The controller uses periodic switching actions to create twinkling and color-changing effects. By periodically changing the output state or color parameters at controlled frequencies, the system generates various lighting effects without requiring complex individual bulb control. The periodic modulation of a single control signal replaces the need for continuous individual addressing of each bulb.
2Measurement precision
If multiple conductors are used to control each bulb individually for special effects, then lighting control precision is improved, but wiring complexity and cost increase
Solution Approach 1:
Multiple control functions are merged into a single control circuit that operates all bulbs through one control line. Instead of having separate conductors for each bulb, the invention combines the control signals into a unified system where a single controller manages the timing and sequencing for all bulbs, achieving precise control effects with minimal wiring.
Solution Approach 2:
The control approach segments the lighting string into groups or sequences that can be controlled in waves or patterns. By dividing the bulbs into controllable segments and using sequential activation patterns, the system achieves the appearance of individual bulb control while using a single control conductor that cycles through different segments in a timed sequence.
3Adaptability or versatility
If addressable circuits with decoders are implemented in each bulb, then individual bulb control capability is improved, but manufacturing cost increases
Solution Approach 1:
The control intelligence is extracted from individual bulbs and consolidated into a single external controller. Instead of embedding decoders and addressable circuits in each bulb, the invention removes these complex components from the bulbs and places the control logic in one centralized unit, significantly simplifying bulb manufacturing while maintaining full individual control capability through the external controller.
Solution Approach 2:
The invention uses a simplified bulb design that can be mass-produced without complex embedded electronics. The control functionality is copied into the external controller, which replicates the intelligence needed for individual bulb control. This allows standard, easily manufactured bulbs to be used while achieving addressable control through the centralized system.
Data Source
AI summary
A system and method of creating a steady ON and a special effects light effect from a bulb without providing any special wiring thereto. In one embodiment, the bulb contains an illumination element and a controller which produces the special effect in the element. By interrupting the flow of current to the controller periodically, the controller is initialized to its initial steady ON condition. A plurality of steady ON pulses at a high frequency will appear as a steady ON light, instead of pules, thereby producing a steady ON appearance without special wiring. When the current is allowed to flow continuously, the controller produces the special effect. A second embodiment uses parallel polarized light element which produce different effect when power is applied in opposite polarities, thereby providing two effects with no special wiring.