LED Light String Address Control for Low-Power Fast Refresh
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Solution Overview
Problem
Existing LED light strings face high power consumption and low refresh rates due to unnecessary power usage in standby states and data transmission delays.
Innovation Solution
A low-power LED light string control system with a non-sleeping address code module in each LED lamp bead chip that continuously compares control data, allowing only matched data to activate the data and drive modules, reducing unnecessary power consumption and data transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If LED lamp bead chips are kept in a powered-on standby state to enable immediate response to control signals, then response speed is improved, but power consumption increases
Solution Approach 1:
The LED lamp bead chip is divided into distinct functional modules: an address code module that remains active for quick address matching, and a data module that enters sleep mode to save power. This segmentation allows the address matching function to remain responsive while the power-intensive data processing function is deactivated during standby periods.
Solution Approach 2:
The data module alternates between active and sleep states based on whether address matching is required. During normal operation, the data module processes data; during standby periods when no data transmission is needed, it enters sleep mode. This periodic activation and deactivation reduces overall power consumption while maintaining system responsiveness.
2Productivity
If all LED lamp bead chips process data continuously to ensure real-time control, then control responsiveness is improved, but system power consumption increases
Solution Approach 1:
The address code module continuously monitors for address matching before the data module is activated. This preliminary address verification ensures that when data needs to be transmitted, the receiving LED lamp bead chip is already prepared and can immediately process the data, eliminating delays while avoiding continuous operation of the full data processing system.
Solution Approach 2:
Each LED lamp bead chip autonomously determines whether to activate its data module based on address matching results from the address code module. This self-service mechanism eliminates the need for continuous system-wide data transmission, as each chip independently activates only when its specific address is called, reducing overall system power consumption.
3Productivity
If data is transmitted to all LED lamp bead chips continuously to ensure immediate display updates, then refresh rate is improved, but data transmission delay increases
Solution Approach 1:
The address matching function is extracted and dedicated to a separate address code module that operates continuously with minimal power consumption. This allows address verification to be performed immediately upon data transmission start, enabling the data module to be activated only for the specific LED chip that needs updating, thereby eliminating the delay of transmitting data to all chips sequentially.
Data Source
AI summary
Disclosed are a low-power LED light string control system and method, the system includes a controller and LED lamp bead chips that are connected to the controller, each of the LED lamp bead chips further includes an address code module, a data module, and a drive module, where the address code module and the drive mode are both electrically connected to the data module; and the address code module is set to a non-sleep state and is capable of always making comparison with control data sent by the controller.