Lamp Control Unit Reducing DALI Address Volume
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Solution Overview
Problem
Current lighting systems with multiple controllable sub-units face inefficiencies in data transmission and address allocation due to the need for individual brightness control commands for each module, limiting the number of integratable lights within a DALI system.
Innovation Solution
A method where a control unit receives first control information for only some sub-units, determines second control information for all sub-units, and transmits it, allowing for reduced data transmission and address usage, enabling efficient control of multiple sub-units with a smaller number of commands and addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If individual control commands are transmitted for each sub-unit to achieve different brightness levels, then individual brightness control is improved, but data transmission volume and address requirements increase
Solution Approach 1:
The patent merges control of multiple sub-units by transmitting a single control command that applies to a group of sub-units rather than individual commands for each sub-unit. The control unit receives first control information for only some sub-units, determines second control information for all sub-units based on this partial information, and transmits the second control information to all sub-units, thereby reducing data transmission volume while maintaining individual brightness control capability
Solution Approach 2:
The control unit performs multiple functions: it receives control information for subset of sub-units, processes this information to generate control commands for all sub-units, and distributes these commands appropriately. This multi-functional approach allows the system to achieve comprehensive control with reduced communication overhead
2Measurement precision
If individual DALI operating addresses are assigned to each sub-unit for precise control, then control precision is improved, but the number of available addresses and integratable lights is reduced
Solution Approach 1:
The patent combines multiple sub-units under a single control address by transmitting control information that applies to groups of sub-units. Instead of requiring separate DALI addresses for each sub-unit, the system uses a single address to control multiple sub-units collectively, significantly increasing the number of lights that can be integrated into the DALI system while maintaining precise control capability
Solution Approach 2:
The control unit creates control information for all sub-units based on control information received for only some sub-units. By copying and adapting the received control parameters to generate appropriate control commands for remaining sub-units, the system achieves comprehensive control without requiring proportional increase in address resources
Data Source
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AI summary
A method for controlling a lamp, which has a plurality of controllable sub-units is disclosed. First control information concerning the light output of only some of the controllable sub-units is fed to a control unit of the lamp on the input side, wherein the control unit determines a second control information concerning the light output of all sub-units on the basis of the first control information and transmits the second control information to the sub-units connected on the output side.