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A Study on Bundang-line Urban Transit Operation Mode and Operation Algorithm Analysis of an ATC System

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A Study on Bundang-line Urban Transit Operation Mode and Operation Algorithm Analysis of an ATC System

Abstract

ATC(Automatic Train Control) system employed in Bundang urban transit is operated in accordance with automatic blocking equipment. Using AF(Audio Frequency) track circuits installed at a block section, the block signal is automatically controlled and the safety of train operation is supported. In this paper, we investigate the operation mode of bundang urban transit and analyze the operation algorithm of ATC on-board system.

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Decoder5.0Hz 25

6.6 40

8.6 60

10.8 70

13.6 80

20.4 100

16.8 YC

3.2 Yard Mode

Relay

Receiver 990Hz

Power Supply To all

Circuit Velocity Zero(v2) Relay

Speed Governor

Decoder 5.0Hz

Under Speed Relay

Emergency Brake Relay Timer

Emergency Brake Relay

Decelerometer

Actual Speed

Cab sig Pickupcoil

car Battery

Shaper Limiter V=0

Speed Sensor Axle Generator

C.S. A.S.

ADU

C

40R 여자 1a → SC 여자 2a → ADU 40km/h 현시 SC 여자 3a → YRD2무애자 → YRD1무여자

(SG에 제한속도 40km/h 선정)

정상운전 40km/h 이하

US 무여자 제한>현재

3초내

제동 → ACK 여자 → 감속후 무여자 속도코드

변화 H

I Y

Y

Y N

N

N

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A

3.2 Hz 수신 → 3.2 Hz Decoder PCB → TRD2A coil 여자

① YRD2 1a 정확한 code 신호 이외는 잡음처리함 ③ US 1b ADU에 Overspeed 전원 32V 차단 2b Latching & Hate PCB 단자 전원 32V차단 2b 자기유지

2a YRD1 여자 3a Time Delay PCB에(EBR 1a를 통해서)

3b 단자에 전원 32V 공급 4a YRD11a → TRD2B coil 여자 4a 4000, 9500 ㎌ C 충전 5a SG 제한속도 25km/h 지점 ④ EBR 1a US 3a → EBR a coil 여자

② YRD1 1a 2a 외부 비상 Relay 여자 2a ADU에 제한속도 표시 (25km/h) 3a 외부 비상 Relay 여자 3a ADU에 Yard Mode Indicator 점등 ⑤ 무신호 수신, YRD 계속여자 상태

2B

17.4

25km/h 이하에서 정상운전

기지내정지

제한>현재

3초내

ACK 여자 1b Alarm 정지 2a

3a US 여자 → 자기유지, 점멸중단 감속후 ACK 무여자

Y

I

US 무여자 Y

N

Y

N

N

Y

정상운전=항상애

정상운전=항상애

정 지 상 태

ATC 개방운전

VZ 여자 (5km/h 까지 여자상태유지) ACK 여자

SS 여자 SG에 15km/h 지령

ADU에 15km/h 현시, 8초마다 경보 US 여자

EBR 여자

15km/h 이하로 운전

VZ 무여자, ACK 무여자

제한 > 현재

US 무여자 → 연속경보, 점멸

제한속도이하 제동

* 개방모드는 ATC 장치의 고장 으로 제동완해 또는 역행제어가 불가능 할때 ATC 장치의 일부 기능을 모효화 시킨것 임.

* 일단 정지후 고장 ATC를 개방하면 1. 수신신호 차단 (무신호와 동일) 2. 외부비상정지용 Relay 강제여자

Y

Y N

N

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