Remote Light Control for User-Location Brightness Calibration
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Solution Overview
Problem
Existing lighting control systems struggle to accurately adjust light intensity at a user's location due to the need for complex calibration of daylight sensors, which can lead to improper operation if not correctly calibrated.
Innovation Solution
A remote control device configured for wireless communication measures ambient light intensity and adjusts it to a desired level using user inputs, controlling lighting control devices to achieve the desired intensity without requiring complex sensor calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If daylight sensors are mounted on the ceiling to control light intensity, then the system can automatically adjust lighting, but the calibration process becomes complicated and burdensome
Solution Approach 1:
The system performs self-calibration by automatically comparing the light intensity measured at the ceiling-mounted sensor with the light intensity measured at the user's location (task surface). The controller autonomously determines the gain factor without requiring manual user calibration, making the system self-configuring and eliminating the burdensome calibration process while maintaining automatic operation
Solution Approach 2:
The system performs preliminary calibration actions by automatically adjusting the gain factor based on initial measurements taken during system operation. The controller proactively establishes the relationship between ceiling-mounted sensor readings and actual task surface illumination, preparing the system for accurate automatic control before normal operation begins
2Measurement precision
If a gain factor is applied to compensate for distance between sensor and user location, then light intensity control accuracy improves, but calibration complexity increases
Solution Approach 1:
The system automatically determines the appropriate gain factor by comparing measurements from the ceiling-mounted daylight sensor with measurements from a sensor at the user's location. The controller self-calibrates by calculating the relationship between these two measurement points, eliminating the need for manual calibration while achieving accurate light intensity control at the task surface
Solution Approach 2:
The system uses feedback from multiple light intensity measurements (at different locations) to automatically adjust and optimize the gain factor. The controller continuously monitors the relationship between ceiling sensor readings and actual task surface illumination, using this feedback to maintain accurate light intensity control without requiring manual calibration intervention
3Measurement precision
If manual calibration is required for proper system operation, then measurement accuracy can be optimized, but ease of operation decreases
Solution Approach 1:
The system performs automatic self-calibration by comparing light intensity measurements from the ceiling-mounted sensor with measurements from a sensor positioned at the user's location. The controller autonomously determines the optimal gain factor, achieving accurate measurements without requiring the average user to perform complex calibration procedures, thereby maintaining measurement precision while dramatically improving ease of operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise control of light intensity at a user's location by directly measuring and adjusting ambient light, simplifying the calibration process and ensuring accurate light settings based on user preferences.
Implementation Method 1
The remote control device may include a light detector. The remote control device may be configured to measure the intensity of ambient light at the remote control device
Data Source
AI summary
A mobile device that is configured for wireless communication may be configured to operate as a remote control device in a lighting control system, controlling one or more lighting control devices of the lighting control system. The remote control device may control the light intensity in a space, for instance at a location of the remote control device, in response to an ambient light intensity measured at the remote control device. The remote control device may define a user interface for receiving an input that indicates a desired light intensity at the location. The remote control device may measure the ambient light intensity at the location via a light detector, compare the measured ambient light intensity to the desired light intensity, and cause the one or more lighting control devices to adjust the ambient light intensity at the remote control device until it agrees with the desired light intensity.