Low Voltage DC Lighting System with Addressable Terminal Controllers
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Solution Overview
Problem
Existing lighting systems cannot individually control low-voltage DC lamps, limiting the ability to manage and adjust lighting settings without professional intervention, which is inconvenient for home and office decor changes and energy efficiency.
Innovation Solution
A low-voltage DC lighting system with identification addresses, comprising a smart controller and terminal controllers connected via network interfaces, allowing for individual control of each low-voltage DC lamp through digital control switches and photoreceptors, enabling centralized management and adjustment of lighting states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-chip controller is used to control LED lamps, then the control circuit is simple, but the number of LEDs that can be controlled is very limited and individual control of large numbers of LED lamps cannot be implemented
Solution Approach 1:
The system divides the control function into multiple terminal controllers, each managing a specific group of LEDs. Each terminal controller has its own CPU and storage space, enabling independent control of LED groups while maintaining overall system coordination through network communication with the smart controller.
2Ease of manufacture
If traditional 220V fluorescent lamps are used, then the lighting system is simple to implement, but professional electricians are required for installation and wiring modification is not allowed after installation
Solution Approach 1:
The system replaces traditional mechanical wiring connections with network-based digital communication. Terminal controllers and smart controllers exchange control information and status data through network interfaces, allowing flexible reconfiguration and modification without physical wiring changes, while maintaining ease of installation through standardized network connections.
3Adaptability or versatility
If individual control of each low-voltage DC lamp is implemented, then control capability is maximized, but the system complexity increases with multiple controllers and network interfaces
Solution Approach 1:
The terminal controller is designed as a multi-functional device that combines LED control, network communication, address storage, and status monitoring capabilities. This universal controller handles multiple tasks including receiving control information from the smart controller, managing individual LED groups, and providing feedback, thereby reducing the need for separate dedicated components for each function.
Data Source
AI summary
A low-voltage DC lighting system with identification addresses, comprising a smart controller, a terminal controller, a plurality of digital control switches connected with a low-voltage DC power supply through the terminal controller and controlled by the terminal controller and low-voltage DC lamps connected with each of the digital control switches respectively, each one of the smart controller and the terminal controller has a unique code, a storage space and an own CPU respectively, the terminal controller has a network interface connected to the smart controller, and the terminal controller exchanges information with the smart controller through the network interface, the smart controllers are also connected with each other via network interfaces, and the smart controller stores the identification addresses of every low-voltage DC lamps controlled by the terminal controller; the terminal controller comprises a network information receiving and transmitting module, a terminal calculating module and a lighting industrial control module. Accordingly, the smart controller can perform various controls over the low-voltage DC lamps located at different locations through the terminal controller according to the identification addresses of the low-voltage DC lamps.