Wireless Lighting Relay Assignment for Dynamic Communication Paths
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Solution Overview
Problem
Conventional lighting systems with wireless controllers face difficulties in maintaining wireless communication due to changes in electromagnetic wave environments and layout changes, such as the introduction of partitions or new materials, requiring cumbersome reconfiguration of relay luminaires.
Innovation Solution
A lighting system with first and second luminaires and a wireless controller, where the controller can automatically assign a relay luminaire by transmitting signals to instruct luminaires to respond and re-establish communication, allowing for dynamic reconfiguration of wireless communication paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay luminaire reconfiguration is performed manually to restore wireless communication after EME changes or layout changes, then communication reliability is improved, but operation complexity and user effort increase significantly
Solution Approach 1:
The system enables automatic relay luminaire assignment where the wireless controller autonomously identifies suitable luminaires and configures them as relay nodes without requiring user intervention. The controller monitors communication status and automatically reconfigures the network when communication failures occur due to EME changes or layout modifications.
Solution Approach 2:
The relay luminaire assignment is made dynamic rather than static. The system continuously evaluates communication conditions and automatically adjusts relay assignments in real-time based on changing electromagnetic environments or physical layouts, allowing the network to adapt seamlessly to variations.
2Adaptability or versatility
If manual reconfiguration of relay luminaires is performed to adapt to changing electromagnetic environments, then system adaptability is improved, but time consumption and operational complexity increase
Solution Approach 1:
The system performs preliminary assessments of luminaire suitability for relay functions during normal operation. By pre-identifying potential relay luminaires and their capabilities, the system can quickly reconfigure the network when communication failures occur, minimizing reconfiguration time and maximizing adaptability to environmental changes.
3Ease of operation
If automatic relay luminaire assignment is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The wireless controller implements continuous monitoring of communication status between luminaires and the controller. Based on feedback from communication quality measurements and response status, the controller automatically determines when relay reconfiguration is needed and selects appropriate relay luminaires, simplifying operation while managing complexity through intelligent control algorithms.
Data Source
AI summary
A second communication unit of a wireless controller transmits a first signal to luminaires, the first signal instructing the luminaires to respond to a request from the wireless controller. A control unit (i) receives a response to the first signal sent from the luminaires, (ii) when there is a first group including a luminaire that has responded to the first signal, and a second group including at least one luminaire that has not responded to the first signal, assigns the luminaire in the first group as a relay luminaire, and (iii) transmit a second signal to the relay luminaire, the second signal instructing the relay luminaire to wirelessly communicate with the at least one luminaire in the second group via the second communication unit. The relay luminaire that has received the second signal wirelessly communicates with the at least one luminaire in the second group via a first communication unit.


