Wireless DALI Controller with Extended Addressing for Scalable Lighting Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional Digital Addressable Lighting Interface (DALI) systems are limited by wired connections, which restrict the length and number of devices that can be controlled, and require time-consuming commissioning processes with strict response time constraints, limiting scalability and flexibility.
Innovation Solution
A wireless DALI system that uses a wireless controller and secondary devices with physical and processing circuitry to transmit and decode packets with extended addresses, allowing for real-time communication and commissioning of luminary devices via a wired DALI bus, enabling scalable control and reduced latency through programmable timeouts and sequence ID numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wired DALI bus is used to connect control units and lighting devices, then the system maintains strict response time constraints and protocol compliance, but the system is limited in the length and number of devices that can be controlled
Solution Approach 1:
The system segments the DALI control architecture into wireless bridge devices that connect wireless lighting devices to the wired DALI bus. Each bridge acts as an independent segment, allowing the system to scale by adding more bridges without being constrained by the physical limitations of a single wired bus segment.
Solution Approach 2:
Wireless bridge devices serve as intermediaries between the wired DALI bus and wireless lighting devices. The bridges receive DALI commands from the control unit via the wired bus, translate them into wireless packets, and forward them to the target lighting devices, thereby extending system reach while maintaining protocol compliance.
2Reliability
If traditional wired DALI systems are used, then protocol compliance is maintained, but commissioning processes are time-consuming and require strict adherence to response time constraints
Solution Approach 1:
The wireless DALI system enables devices to self-configure and self-describe during commissioning. Lighting devices automatically provide their information through the wireless bridge, eliminating the need for manual configuration and reducing commissioning time while maintaining protocol compliance through automated address assignment.
Solution Approach 2:
The system performs preliminary discovery and address assignment actions automatically during initial setup. The control unit automatically discovers wireless bridges and lighting devices, assigns addresses, and configures the network before operational use, thereby eliminating time-consuming manual commissioning steps.
3Adaptability or versatility
If extended addressing is implemented to support more devices, then scalability is improved, but the complexity of address management increases
Solution Approach 1:
The system introduces a hierarchical addressing dimension by combining wireless bridge identifiers with traditional DALI device addresses. This creates a two-level address structure (bridge ID + device address) that exponentially increases the number of addressable devices while keeping individual address components simple and manageable.
Data Source
AI summary
A controller for a wireless digital addressable lighting interface (DALI) compatible system comprises physical layer circuitry configured to communicate information wirelessly with one or more secondary devices of the DALI system, and processing circuitry operatively coupled to the physical layer circuitry. The processing circuitry is configured to encode a forward packet to be sent to a secondary device of the one or more secondary devices. The forward packet includes an extended address that includes an address of the secondary device and an address of a DALI luminary device of the DALI system connected to the secondary device.