LED Lamp String Driving System Segmentation
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Solution Overview
Problem
Existing light emitting diode (LED) lamp string driving systems face complexity and higher failure rates due to the need for numerous addressing codes and correct sequence assembly, especially with large numbers of LEDs, leading to complicated control commands and increased assembly errors.
Innovation Solution
The system incorporates a switch unit, control unit, voltage level generating unit, and signal transmission lines to reduce the number of addressing codes required, using a carrier method to send control commands through the power line, allowing for synchronization and point control effects without additional signal transmission lines, thus simplifying the assembly and operation of LED lamp strings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each light emitting diode has a unique addressing code to enable individual control and synchronization effects, then the control precision and lighting effect are improved, but the complexity of control commands increases and the assembly failure rate rises
Solution Approach 1:
The patent divides the lamp string into multiple segments, each controlled by a separate driving apparatus. Each driving apparatus manages a portion of LEDs with fewer addressing codes, thereby reducing the overall control complexity while maintaining precise control over each segment for synchronization effects.
Solution Approach 2:
The patent introduces a hierarchical control structure where control commands are organized in multiple dimensions: segment-level control and LED-level control within each segment. This dimensional organization allows precise control of individual LEDs while managing complexity through structured command hierarchy.
2Reliability
If each light emitting diode has a unique addressing code to enable individual control, then the lighting effect and synchronization are improved, but the assembly failure rate increases due to stricter sequence requirements
Solution Approach 1:
By segmenting the lamp string into multiple independently controllable sections, the patent reduces the impact of assembly errors. If sequence errors occur in one segment, they do not affect other segments, thereby maintaining overall lighting reliability while reducing the precision required for entire string assembly.
Solution Approach 2:
The patent implements preliminary grouping of LEDs into segments during the design phase, with each segment having its own driving apparatus. This preliminary organization allows for more flexible assembly processes and reduces the stringency of sequence requirements compared to requiring perfect ordering of all LEDs in a single long string.
3Area of stationary object
If more light emitting diodes are included in the lamp string to increase lighting coverage, then the illumination area is improved, but the assembly failure rate increases due to higher addressing code requirements
Solution Approach 1:
The patent divides large-scale illumination requirements into multiple segments, each with manageable numbers of LEDs. This segmentation allows extensive illumination coverage to be achieved through parallel segments rather than a single long string, thereby reducing assembly failure rates while maintaining large illumination area.
Solution Approach 2:
Each driving apparatus is designed with universal functionality to control its segment regardless of the specific number of LEDs within reasonable limits. This multi-functionality allows flexible configuration of segments to achieve desired illumination areas without requiring different control systems, thereby simplifying assembly and reducing failure rates.
Data Source
AI summary
A light emitting diode lamp string driving system includes a plurality of light emitting diode driving apparatuses and a plurality of light emitting diode lamp strings. The light emitting diode lamp string includes a plurality of light emitting diodes. The light emitting diode driving apparatus includes a switch unit, a control unit and a voltage level generating unit. An anode of a last of the light emitting diodes of the light emitting diode lamp string connected to a first of the light emitting diode driving apparatuses is connected to the control unit of a second of the light emitting diode driving apparatuses.