Zigbee Gateway Lighting Control System
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Solution Overview
Problem
Current LED lighting control systems using infrared signals face limitations in transmission distance and penetrability, making it difficult to achieve networking and multi-point control.
Innovation Solution
A lighting control system utilizing a Zigbee gateway and Zigbee protocol for communication between a router and lighting devices, enabling ad hoc networking and multi-point control through superior signal transmission distance and penetrability, with optional integration of a terminal for remote control and scenario mode configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If infrared signals are used for lighting control, then the system is simple to implement, but the transmission distance and penetrability are limited
Solution Approach 1:
The patent introduces a Zigbee gateway as an intermediary device that bridges the terminal and lighting devices. The gateway receives infrared commands from the terminal, converts them to Zigbee protocol signals, and transmits them to the lighting devices. This mediator enables the system to overcome the limited transmission distance of infrared signals while maintaining ease of operation through remote control functionality.
2Device complexity
If infrared signals are used for lighting control, then the device complexity is low, but multi-point control and networking are difficult to achieve
Solution Approach 1:
The Zigbee gateway is designed with multi-functionality to handle various control scenarios. It can receive commands from terminals, convert them to Zigbee protocol, and control multiple lighting devices simultaneously. The gateway also supports scene modes, dimming, color temperature adjustment, and scheduling functions, enabling a single device to perform multiple control tasks without significantly increasing overall system complexity.
Solution Approach 2:
The patent replaces the mechanical/infrared-based control system with a wireless Zigbee communication system. Instead of using physical infrared transmitters that have limited range and cannot network, the system uses Zigbee wireless communication that enables multi-point control, networking, and remote access through terminals while maintaining relatively simple device architecture.
3Length of stationary object
If Zigbee protocol is used for lighting control, then transmission distance and penetrability are improved, but the device complexity increases
Solution Approach 1:
The Zigbee gateway serves as an intermediary that handles the complexity of Zigbee protocol communication. It receives simple infrared commands from terminals, converts them to Zigbee protocol signals, and transmits them to lighting devices. This mediator approach allows the system to benefit from Zigbee's superior transmission capabilities while keeping the user interface simple and the overall system architecture manageable.
4Adaptability or versatility
If remote control functionality is added, then user flexibility is improved, but the device complexity and signal transmission requirements increase
Solution Approach 1:
The Zigbee gateway acts as a mediator between the terminal and lighting devices, enabling remote control functionality. It receives wireless signals from terminals (which can be smartphones or remote controls), converts them to Zigbee protocol commands, and transmits them to the lighting devices. This intermediary approach allows remote control capability to be added without significantly increasing the complexity of individual components, as the gateway handles the protocol conversion and communication overhead.
Data Source
AI summary
A lighting control system comprises a router installed with a Zigbee gateway, and at least one set of lighting devices; the lighting device includes a Zigbee control module, a power supply module and a lamp; the Zigbee gateway converts a wireless signal received by the router for controlling the operation of the lamp into a digital signal of the Zigbee protocol and transmits the digital signal to the Zigbee control module; and the Zigbee control module converts the digital signal into a control signal required to adjust the lamp, and the control signal controls an electric signal output to the lamp by the power supply module to control the operation of the lamp. Using Zigbee signals to build a lighting control system facilitates ad hoc networking and can realize multi-point control of lamps.