Nowadays, people make more and more of their daily migrations early in the morning or late in the evening - that is, when there is a lack of natural light. To increase safety in those parts of the day we need good road lighting and to determine how well-lit road surfaces are, as part of our thesis, we designed and manufactured a device called an illuminance and position data logger.
With the help of LP PHOT 03 BL AC illuminance sensor and SIM808 EVB-V3.2 GPS module, the data logger captures data on illuminance along with the current location and writes them to a text file. After recording the data, the device draws a map based on the measured results. On the map, the illumination of the road surfaces at individual locations is shown in color. A lighter color on the map represents more and a darker, less illuminated surface.
We tested the device in the western part of Ljubljana and its surroundings. By analyzing the obtained results, we found that with the help of the map drawn by the device, we can see the difference between old and new road lamps and that most roads and pedestrian crossings are adequately lit in accordance with the recommendations set by the Slovenian Lighting Association.
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