Precision stopping of an urban train at a station is prerequisite before starting revenue service due to screen doors. Regulation for precision stopping of the urban train requires ±30 cm in general in Korea. Since there is no device to detect stopping error automatically, it takes long time to gather stopping error data at each station due to manual measurement using a ruler. In this paper, we present a principle and design of a precision stopping measurement device (PSMD) which can be easily used for error …
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