실시간 데이터 전송이 가능한 자동 복귀형 끌림 물체 검지장치 연구

A Study on Automatic Return Dragging Detector with Real-time Data Transmission

Abstract

Recently, an expansion of safety facilities has been widely applied to effectively manage the safety of train operation due to increase of the high-speed section of the general railway and the introduction of high-speed train. Accordingly, performance improvement, upgrading and high reliability of existing safety devices are required. the dragging detector, one of the safety devices, is an analogue system that consists of closed circuit with an electric current flows and operates when the closed circuit is opened by the impact of the dragging object. Such method has unreasonable problem that should be replaced after being detected. It is need to replace with an automatic return type dragging detector which is easy to maintain. In addition, it is necessary to develop a dragging detector that applicable to general railway and urban railway including high-speed railway, in accordance with the speeding up and densification of trains, although it is currently applied only to high-speed railway. In this paper, we propose an automatic return type dragging detector which has versatility and excellent maintainability with digital sensor and real time monitoring.

그림 1 기존 끌림 물체 검지장치 Fig. 1 Existing dragging detector

그림 2 시스템 기본 구조 및 동작 Fig. 2 System architecture and behavior

그림 3 시스템 Level 구조 Fig. 3 System Level structure

그림 4 구조 분석 (Level 1) Fig. 4 Structure analysis (Level 1)

그림 5 기능 분석 (Level 1) Fig. 5 Function analysis (Level 1)

그림 6 스프링의 취부 형태 및 동작 Fig. 6 Type of spring mounting and operation

그림 7 웨이트 밸런스 배치 Fig. 7 weight balance placement

그림 8 웨이트 밸런스 배치 Fig. 8 weight balance placement

그림 9 끌림 물체 검지장치 시제품 Fig. 9 Prototype dragging detector

그림 10 끌림 물체 검지장치주요 개선 사항 Fig. 10 Major improvements of the dragging detector

그림 11 검지부 시험 Fig. 11 Detection unit test

그림 12 끌림 물체 검지장치 설치 위치 예시 Fig. 12 Example of installation location of the dragging detector

표 1 시스템 정의 (Level 1) Table 1 System definition (Level 1)

표 2 끌림물체 검지장치 HAZOP Table 2 Dragging detector HAZOP

표 3 충격에 의한 킥플레이트의 변형 Table 3 Kick plate distortion by impact

표 4 끌림 물체 검지장치 제원 Table 4 Dragging detector specification