A Study on Railroad Safety System of Train Alarm Device Using GPS and RF type

GPS와 RF 방식의 열차접근경보장치에 의한 철도 안전 시스템 구축에 대한 연구

Recently, GPS device is used in various industries. GPS can calculate a moving train's velocity, location, and direction. In this paper, we examine a train approaching alarm device's application, possibility, and merits in the train system. Especially, we investigate solubility of trouble caused by using GPS and RF system for detecting the train's velocity, the location and direction recognition.