Wireless Lighting Control Server for Circadian Rhythm
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Solution Overview
Problem
Existing lighting systems are costly and inefficient in making large-scale, continuous color temperature adjustments to mimic natural daylight for circadian rhythm regulation, as they require expensive atomic clocks and color-correction capabilities in each fixture.
Innovation Solution
A wireless lighting control system that uses a server to determine local daylight information and broadcast color temperature signals to lighting devices, allowing them to adjust their output continuously throughout the day, even when powered on and off, without the need for atomic clocks or onboard color-correction technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If atomic clocks and color-correction capabilities are incorporated into each lighting fixture to ensure immediate color-correction upon being turned on, then the lighting system achieves accurate circadian rhythm regulation, but the system cost becomes expensive and cost-prohibitive for large-scale deployment
Solution Approach 1:
The patent extracts the atomic clock and color-correction capabilities from individual lighting fixtures and relocates them to a centralized server. The server generates color temperature values based on local daylight information obtained from atomic clocks, then transmits these values to lighting devices via wireless communication. This eliminates the need for expensive onboard technology in each fixture while maintaining accurate circadian rhythm regulation across the entire lighting system.
Solution Approach 2:
The patent introduces a server as an intermediary between the atomic clock and the lighting devices. The server acts as a mediator that processes local daylight information, calculates appropriate color temperature values, and distributes them to multiple lighting devices simultaneously. This intermediary approach enables centralized control and eliminates the need for each device to have its own atomic clock and color-correction hardware.
2Ease of manufacture
If centralized server control is implemented to broadcast color temperature signals to multiple lighting devices, then the system cost is reduced by eliminating onboard technology in each fixture, but the device complexity increases due to the centralized control infrastructure
Solution Approach 1:
The server performs multiple functions: it obtains local daylight information from atomic clocks, calculates color temperature values, stores these values in memory, and transmits them wirelessly to lighting devices. This multi-functional centralized unit consolidates what would otherwise be distributed across many individual devices, reducing overall system complexity despite the added sophistication of the server itself.
Data Source
AI summary
Illumination control systems and methods, including those for influencing circadian rhythm, are disclosed. Embodiments include a control device capable of obtaining desired color temperature (e.g., local daylight) information, generating a color temperature value, and outputting a signal including the color temperature value. Embodiments further include a server having means for obtaining at least one of geographical location information and time of day information relative to the server, a processor to determine local daylight information, and a wireless transmitter to broadcast the signal within a site system. Embodiments further include one or more lighting control devices to control lighting devices, each lighting control having a wireless receiver to continuously listen for and receive the signal broadcasted by the server, and a lighting driver to change the lighting output of the coupled lighting device according to the detected signal.