MEASURING METRO TRAIN'S SPEED BY ON-BOARD OPTICAL SENSORS
[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)]. ABSTRACT The optical methods of measuring the speed of trains in metro by onboard sensors are studied, including situations of train's approach to another object. In solving these tasks the experience of the development of opto-electronic devices for probable future spacecrafts is used. It is shown that the smallest measurement uncer­tainty is provided by considering the effect of geometric distortion of the image formed by CMOS photodetector. The sensors are able to fulfill the role of reserves in the system of auto­matic train control, thereby enhancing reliability and safety of passenger tr affic.  KEYWORDS: metro, train, speed, measurement, optical sensor, CMOS. REFERENCES 1.Moscow Metro.Official site.Access: http:// mosmetro.ru/about/structure/rollingstock/als_ars/.Last accessed 05.06.2015. 2.Feinberg, M. E. Research and development of hardware and software for optoelectronic speed sensor CCD.Ph.D.(Eng.) thesis [Issledovanie i razrabotka apparatno-programmnyh sredstv optojelektronnogo datchika skorosti na PZS. Dis… kand. tehn. nauk].Moscow, 2005, 126 p. 3.Tilk, I.G.ALS using radio channel [ALS s ispol'zovaniem radiokanala].Avtomatika, svjaz', informatika, 2010, Iss.7, pp.7-8. 4.Portrait at speed.Scientists have developed a highly accurate measurement system of motion parameters [Portret na skorosti. Uchenye razrabotali sistemu vysokotochnogo izmerenija parametrov dvizhenija].Gudok, 2010, May, 19. 5.A method for measuring linear speed of a locomotive.The patent of the Russian Federation № 2189599.The priority of 16.07.2001 [Sposob izmerenija linejnoj skorosti lokomotiva. Patent RF № 2189599. Prioritet ot 16.07.2001].Authors: Zarifyan, A.A., Kirievsky, E.V., Yanarev, S.G., Kolpahchyan, P.G. 6.Elcom.Equipment for the metro.Device for control over train speed UKSDP [Elkom. Oborudovanie dlja metropolitena. Ustrojstvo kontrolja skorosti dvizhenija poezdov UKSDP].Access mode: http://elkom-metro.com/ products/prochee-oborudovanie/ustroystvo-kontrolya-skorostidvizheniya-poezdov-uksdp/.Last assessed 05.06.2015. 7.Starovoitov, E.I., Savchuk, D.V., Zubov, N. E.Analysis of opportunities, optimization of mass and energy consumption of the laser altimeter to control the descent from lunar orbit [Analiz vozmozhnostej, optimizacija massy i energopotreblenija lazernogo vysotomera dlja upravlenija spuskom s okololunnoj orbity].Kosmicheskaja tehnika i tehnologii, 2014, Iss.1, pp.67-74. 8.Starovoitov, E.I., Savchuk, D. V. Using geometric distortion of the image formed by CMOS photodetector to control the approach speed of spacecraft [Ispol'zovanie geometricheskih iskazhenij izobrazhenija, formiruemogo KMOP-fotopriemnikom dlja kontrolja skorosti sblizhenija kosmicheskih apparatov].Mehatronika, avtomatizacija, upravlenie, 2014, Iss.4, pp.66-68. 9.Starovoitov, E.I., Zubov, N.E., Ivashov, V.V., Nikulchin, A. V. Research of efficiency and optimization of parameters of laser radar device to measure approach speed of spacecraft [Issledovanie effektivnosti i optimizacija parametrov lazernogo lokacionnogo pribora dlja izmerenija skorosti sblizhenija kosmicheskih apparatov].Nauka i obrazovanie, 2014, Iss.6 [Electronic scientific and technical edition].DOI: 10.7463 / 0614.0712240.Access: http://technomag.bmstu.ru/doc/712240.html.Last assessed 05.06.2015. 10.Starovoitov, E.I., Savchuk, D.V., Zubov, N. E.Optimization of mass and energy consumption of laser radar systems to control approach and coupling of spacecraft [Optimizacija massy i energopotreblenija lazernyh lokacionnyh sistem dlja upravlenija sblizheniem i stykovkoj kosmicheskih apparatov].Kosmicheskaja tehnika i tehnologii, 2014, Iss.3, pp.39-42. 11.The system of spacecraft speed control when approaching.The application for the invention № 2013138949.The priority of 08.20.2013 [Sistema kontrolja skorosti kosmicheskih apparatov pri sblizhenii. Zajavka na izobretenie №