DEVICE FOR MEASURING THE CHARACTERISTICS OF THE LIGHT DISTRIBUTION OF TRAFFIC LIGHTS ON THE BASIS OF THE ATMEGA328P MICROCONTROLLER
A device for measuring the characteristics of the light distribution of railway traffic lights, based on a BH1750FVI optical range photodetector and an ATmega328P microcontroller, is considered. Using this device configuration avoids measurement errors due to out-of-band optical and infrared radiation. The use of a microcontroller makes it possible to fix measurements with high accuracy directly in units of illumination at the location of the device. This device has been implemented and tested in laboratory conditions when measuring the characteristics of the light distribution of stage traffic lights equipped with a lens and LED optical system. Laboratory tests have shown that the device in question provides fixation of light distribution characteristics with an accuracy acceptable for practical purposes and can be recommended for laboratory calibration and periodic checks of the visibility of traffic lights used on the railway.