Wireless DMX Controller for LED Fixtures
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Solution Overview
Problem
Existing tools for controlling LED lighting fixtures using DMX protocols are cumbersome, require wired connections, and lack intuitive control, making it difficult for users to efficiently set up and manage multiple fixtures from different manufacturers, especially in portable and wireless contexts.
Innovation Solution
A compact hardware device paired with a smartphone app that uses Bluetooth LE for wireless communication, allowing users to control and configure DMX/RDM lighting fixtures via a database of fixture profiles, enabling automatic detection and configuration of fixtures, and supporting multiple manufacturers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connections are used for DMX control, then reliable communication with lighting fixtures is achieved, but portability and ease of operation are reduced
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless communication system using Bluetooth Low Energy (BLE). The controller communicates with lighting fixtures via wireless protocols, eliminating the need for physical cables while maintaining communication reliability through protocol design and error handling mechanisms.
Solution Approach 2:
The patent introduces a wireless communication intermediary (Bluetooth module and protocol stack) between the controller and lighting fixtures. This intermediary enables reliable data transmission without direct physical connection, bridging the gap between wireless convenience and wired reliability.
2Ease of operation
If manual configuration of DMX slots is used, then precise control of lighting parameters is achieved, but setup time and complexity increase
Solution Approach 1:
The patent implements automatic DMX slot detection and configuration where the controller autonomously identifies the lighting fixture type, determines the appropriate DMX slot assignments, and configures parameters without user intervention. The system self-queries the fixture capabilities and automatically maps control parameters to the correct slots.
Solution Approach 2:
The patent pre-programs a database of lighting fixture profiles containing manufacturer-specific DMX slot mappings and parameter configurations. Before actual control begins, the system performs preliminary automatic configuration by matching the connected fixture to its profile and pre-setting all necessary DMX parameters, eliminating manual setup time.
3Adaptability or versatility
If a database of fixture profiles is implemented, then adaptability to multiple manufacturers is improved, but device memory requirements and complexity increase
Solution Approach 1:
The patent creates simplified digital copies of lighting fixture documentation and DMX parameter mappings in a compact database format. Instead of storing complete manufacturer manuals, the system stores essential DMX slot assignment patterns and parameter definitions that replicate the functionality needed for control, reducing memory requirements while maintaining versatility.
4Ease of operation
If Bluetooth LE is used for wireless communication, then portability and ease of operation are improved, but data transmission rate may be insufficient for high-speed DMX protocols
Solution Approach 1:
The patent segments the data transmission into priority levels and uses packet-based communication over Bluetooth LE. Critical DMX control data is transmitted in small, frequent packets, while non-critical configuration data uses larger batches. This segmentation allows the system to work within Bluetooth LE bandwidth constraints while maintaining responsive control.
Solution Approach 2:
The patent implements periodic polling and update cycles for DMX data transmission over Bluetooth LE. Instead of continuous high-speed streaming, the system uses timed intervals for data requests and updates, synchronizing communication to match both the lighting control needs and Bluetooth LE transmission capabilities, ensuring reliable delivery without requiring excessive bandwidth.
Data Source
AI summary
A device, system, and method are provided for controlling a fixture, such as a lighting fixture. The device includes a fixture communication interface for transmitting data to a fixture using a first communication protocol, such as DMX, and an application communication interface for wirelessly receiving information using a second communication protocol, such as Bluetooth. The device further comprises a processor for converting the information received at the application communication interface from the second communication protocol to the first communication protocol. The first communication protocol requires more data than can be transmitted using the Bluetooth protocol, and converting the information may include adding default data or restored data to data being transmitted to the fixture.