研究目的
To identify and discuss the main sources of error in the measurement of Correlated Color Temperature (CCT) for a controlled lighting system and to provide considerations for their reduction.
研究成果
The study successfully identified and analyzed the main sources of error in CCT measurement for a controlled lighting system. Calibration and fine adjustment methods were proposed to reduce errors, achieving a significant reduction in measurement inaccuracies. The findings contribute to the development of more accurate and reliable intelligent lighting systems.
研究不足
The study acknowledges that errors in CCT measurement can be influenced by ambient light and the non-linear variation between CCTvar and CCT, especially for values greater than 4500K. The aesthetic aspect of the light fixture and the positioning of the sensor also pose constraints.
1：Experimental Design and Method Selection:
The study involved designing a controlled lighting system using a microcontroller, an RGBC sensor, and a programmable lighting section to measure CCT. The main sources of error in CCT measurement were identified and analyzed.
2：Sample Selection and Data Sources:
The lighting system was tested under various conditions including different illumination levels, sensor positions, and distances from the lighting elements.
3：List of Experimental Equipment and Materials:
The system included a TRIDONIC LCA 50W 350-1050mA lighting elements LLE G2 DT8 Ip PRE driver, a Digilent WF32 micro system, and a TAOS TCS 34725 RGBC sensor.
4：Experimental Procedures and Operational Workflow:
The system was tested for default CCTs and illumination levels. The influence of distance, illumination level, and sensor position on CCT measurement was evaluated.
5：Data Analysis Methods:
The study analyzed the relationship between CCT and sensor readings, and the impact of various factors on measurement accuracy was quantified.
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