Using Ambient Light Sensors in Smartphones for Evaluating Indoor Lighting Conditions

Christian Schuss, Tore Leikanger, Bernd Eichberger, Timo Rahkonen

Abstract

This paper discusses opportunities for collecting data on lighting conditions in indoor environments with the help of ambient light sensors in smartphones. Environmental data is needed to allocate the most beneficial location for solar energy harvesters on the one hand and provide energy predictions for their users on the other. Here, we focus on the illumination of surfaces and the use of ambient light sensors to measure the amount of light intensity. A comparison of sensors in different smartphones such as entry-level devices, mid-range and flagship phones is presented and the obtained results are verified against a luxmeter and commercial available ambient light sensors. Furthermore, the impact of the measured light intensity on energy predictions is discussed.

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IMEKO TC

TC10 - Measurement for Diagnostics, Optimization and Control

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