Lighting Device Unit Address Initialization via Sequential Power Chain
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Solution Overview
Problem
Existing lighting device systems face complexity in initializing addresses of units, leading to increased power consumption and potential interference during the initialization process, which complicates the structure and efficiency of the lighting device.
Innovation Solution
A lighting device with a primary control unit and a group of light units arranged in a power supply chain, where each unit initializes its address only after receiving power and communicates uniquely, simplifying the initialization process by ensuring only one unit is powered at a time, reducing power consumption peaks, and allowing for simplified address assignment without external interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If all units are powered simultaneously during initialization, then power consumption peaks increase, but the initialization process becomes more complex and prone to interference
Solution Approach 1:
The patent applies preliminary action by having each unit initialize its address identification before being powered on. The first unit initializes its address, then powers on the second unit, which initializes its address, and so on. This sequential initialization before power-on eliminates the need for complex simultaneous initialization protocols while reducing power consumption peaks.
Solution Approach 2:
The initialization process is segmented into sequential steps where each unit is initialized and powered on individually rather than simultaneously. This segmentation divides the complex simultaneous initialization into manageable sequential steps, reducing both power consumption peaks and initialization complexity.
2Reliability
If multiple units initialize addresses simultaneously, then initialization interference occurs, but sequential initialization increases initialization time
Solution Approach 1:
Each unit performs address initialization as a preliminary action before being powered on by the preceding unit. This ensures that when a unit is powered, its address is already initialized, eliminating initialization interference. The sequential nature accepts longer total initialization time but ensures high reliability through interference-free execution.
3Device complexity
If units are initialized without sequential power supply, then address assignment becomes complex, but power consumption increases
Solution Approach 1:
The patent implements preliminary address initialization before power supply to each unit. The first unit initializes its address, then supplies power to the second unit, which initializes its address, and so on. This approach simplifies address assignment by ensuring each unit has its address ready before needing it for communication, while reducing power consumption by avoiding simultaneous operation of all units.
Solution Approach 2:
The power supply and initialization process is segmented into sequential steps rather than simultaneous execution. Each unit is powered and initialized individually in sequence, which simplifies the address assignment process for each unit while reducing overall power consumption compared to simultaneous operation.
Data Source
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AI summary
In a lighting device, a primary control unit (103) and a group of light units (107) are arranged in a power supply chain, each light unit (107) of said group being arranged for receiving commands from the primary control unit (103) via a light unit interface (117) of the light unit (107), wherein each succeeding unit (103; 107) of the chain has a power input (145) which is connected to a switchable power output (147) of a respective preceding unit (103; 107), each preceding unit (103; 107) being arranged to supply power at the power output (147) only after initializing an address identification of the unit, and each succeeding unit (103; 107) being arranged to initialize an address identification of the unit upon being supplied with power at the power input (145).