Dimmer System Control Automatic LED Lamp Provisioning
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Solution Overview
Problem
Existing methods for associating dimmers with dimmable LED lamps, especially when the lamp is already ceiling-mounted, are hindered by the need for manual provisioning techniques that require user intervention or knowledge of the lamp's serial number, which is not feasible with simple user interfaces or when both the dimmer and lamp are stationary.
Innovation Solution
An automatic provisioning method where the dimmable LED lamp checks a stored RF frequency upon turn-ON, listens for provisioning information from the dimmer, and switches to a control frequency to receive dimming instructions, ensuring recognition of the specific dimmer and discarding other dimmers' signals, allowing for wireless control without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual association techniques are used (requiring user intervention or serial number input), then the association process can be completed, but the ease of operation deteriorates and device complexity increases
Solution Approach 1:
The system performs automatic association without user intervention by having the lamp and dimmer autonomously exchange provisioning information wirelessly. The lamp automatically listens for provisioning packets from the dimmer, extracts the control frequency, and stores it for future communications, eliminating the need for manual serial number input or button pressing.
Solution Approach 2:
The association process is performed automatically during the initial power-on sequence before normal operation begins. The lamp enters a listening mode upon power-on to receive provisioning information from the dimmer, establishing the control frequency linkage beforehand so that subsequent dimming operations can proceed without any user intervention.
2Ease of operation
If automatic provisioning is implemented, then ease of operation improves, but the risk of associating with wrong dimmer increases
Solution Approach 1:
The dimmer transmits its identification information within the provisioning packet sent to the lamp. The lamp extracts and stores this identification data along with the control frequency, creating a feedback loop that ensures the lamp is associated with the correct dimmer. This automatic identification exchange prevents association with wrong dimmers by verifying the dimmer's presence and identity during the provisioning phase.
3Reliability
If the lamp listens continuously for provisioning information, then association reliability improves, but energy consumption increases
Solution Approach 1:
The lamp enters a listening mode only during specific periodic intervals - specifically upon power-on events. During normal operation, the lamp switches to the stored control frequency for receiving dimming commands without continuously listening for provisioning information. This periodic listening approach ensures reliable association establishment while minimizing energy consumption during extended operation periods.
Data Source
AI summary
A method of automatic LED lamp provisioning in a lighting system comprising a dimmable LED lamp and a dimmer. The method comprises the following steps performed in the lamp: Upon turn-ON, checking a stored listening RF frequency value, which is one of a predefined provisioning frequency F0 and a control frequency Fn which is specific to the dimmer. If the stored listening frequency is F0, listening on F0 during a predefined provisioning waiting period for receiving from the dimmer provisioning information comprising the value of the dimmer specific Fn, and upon receiving the provisioning information, storing the Fn value for listening thereon following the next turn-ON events and varying the listening frequency to Fn for receiving from the dimmer control information thereon. If the stored listening frequency is Fn, listening on Fn for receiving the control information from the dimmer.