Rain sensor for automatic systems on vehicles

Alexandru Vasile; Irina Vasile; Adrian Nistor; Luige Vladareanu; Mihaela Pantazica; Florin Caldararu; Andreea Bonea; Andrei Drumea; Ioan Plotog

doi:10.1117/12.882156

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4 December 2010 Rain sensor for automatic systems on vehicles

Alexandru Vasile, Irina Vasile, Adrian Nistor, Luige Vladareanu, Mihaela Pantazica, Florin Caldararu, Andreea Bonea, Andrei Drumea, Ioan Plotog

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Proceedings Volume 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V; 78211W (2010) https://doi.org/10.1117/12.882156
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies, 2010, Constanta, Romania

Abstract

Despite the fact that today vehicles are easier to drive and more reliable, the drivers' carefulness is diverted by a large number of factors (road conditions, traffic conditions, phone calls, navigation systems etc.). The automatic system of controlling the windscreen wipers meets exactly one of the carelessness factors. A rain sensor makes the activation of the system of windscreen wipers to become something that you turn on and forget about it. This completely automated system activated by rain measures the rain intensity and also the necessity to turn on the windscreen wipers and with what velocity. Using an advanced optical system, analogue signal processing and a control algorithm, this technology offers more safety and comfort on different weather conditions. The sensor beams an infrared light on the windshield at an angle carefully chosen. If the windshield is dry, the beam is reflected back in the sensor. If on the glass there are rain drops, they will reflect the light in different directions (the wetter the windshield is, the least of the beam ray is reflected back in the sensor).

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Alexandru Vasile, Irina Vasile, Adrian Nistor, Luige Vladareanu, Mihaela Pantazica, Florin Caldararu, Andreea Bonea, Andrei Drumea, and Ioan Plotog "Rain sensor for automatic systems on vehicles", Proc. SPIE 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V, 78211W (4 December 2010); https://doi.org/10.1117/12.882156

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