• Journal of the Korean Society for Railway
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• v.15 no.6
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• pp.609-615
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• 2012

TPS (Train Performance Simulation) based on ATO (Automatic Train Operation) is required for driverless LRT (Light Rail Transit) operation plan instead of typical TPS based on driver operation. In this paper, new TPS model using ATO pattern is proposed and compared with the automatic train operation result in a test line of Seoul Metro Line 6 and in a whole line of Busan-Gimhae LRT. The actual ATO pattern can be very accurately simulated by new TPS model with the introduction of 4 parameters such as commercial braking rate, jerk, station stop profile and grade converted distance. The commercial scheduled time for driverless automatic train operation can be proposed to have "Fast" mode TPS trip time plus 3 seconds/km margin recommended by Korean standard LRT specification in this paper.

• Journal of the Korean Society for Railway
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• v.3 no.3
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• pp.154-160
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• 2000

The automatic/driverless operation which are great important techniques in metro railway are required to increase higher safety, greater reliability, and transport capacity. To satisfy such demands, we must have the system design and testing technique for the railway system operation. These techniques are related to the onboard train control and communication systems which include TCMS(Train Control and Monitoring System), ATO(Automatic Train Operation), ATC(Automatic Train Control), and TWC(Train to Wayside Communication). These sub-systems must be interfacing with not only each others but also the signal system on the ground. We tested the train control system on Test line that has been developed on the basis of the standardized type EMU for korea railway systems. This test line which is located in Sangju, have been constructed for testing 7 ＆ 8 line of Seoul Metro railway.

• Journal of the Korea Construction Safety Engineering Association
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• s.39
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• pp.86-99
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• 2006

• Journal of the Korean Society for Railway
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• v.7 no.3
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• pp.11-23
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• 2004

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.175-176
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• 2006

전력계통에서 고장이 발생할 경우, 변전소 운전원은 빠르고 정확한 고장 복구 조작을 수행해야 한다. 그러나 고장 발생의 빈도가 높지 않아 실제 상황이 발생하면 실제 경험이 부족한 운전원들은 신속하고 정확한 고장 복구를 수행하기 어려워진다. 또한 최근에는 변전소 무인화에 따른 자동 운전 시스템의 필요성이 대두되고 있는 실정이다. 따라서 현재 변전소의 구성 및 운전 상황에 맞춰 적절한 고장 복구 지침을 제시해주는 고장복구 지원 시스템을 개발하는 것을 목적으로 연구개발을 진행하고 있으며, 본 논문에서는 현재 개발 중인 감시반 시스템의 구조와 설계 내용을 기술하였다.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.517-518
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• 2007

변전소에서 고장이 발생할 경우, 변전소 운전원은 신속하고 정확하게 고장 복구 조작을 수행해야 하나 고장 발생의 빈도가 높지 않아 실제 상황이 발생하면 경험이 부족한 운전원들은 신속하고 정확한 고장 복구를 수행하기 어려워진다. 또한 최근에는 변전소 무인화에 따른 자동 운전 시스템의 필요성이 대두되고 있는 실정이다. 따라서 현재 변전소의 구성 및 운전 상황에 맞춰 적절한 고장 복구 지침을 제시해주는 고장 복구 지원 시스템을 개발하는 것을 목적으로 연구개발을 진행하고 있으며, 본 논문에서는 현재 개발 중인 고장복구지원시스템을 위한 HMIHuman Machine interface)의 구조와 설계 내용을 기술하였다.

• Journal of Digital Convergence
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• v.13 no.1
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• pp.297-304
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• 2015

Recently, the demand for a PRT(Personal Rapid Transit) system based on autonomous navigation is increasing. Accordingly, the applicability investigations of the PRT system on rail tracks or roadways have been widely studied. In the case of unmanned vehicle operations without physical guideways on roadways, to monitor the position of the vehicle in real time is very important for stable, robust and reliable guidance of an autonomous vehicle. The Global Positioning System (GPS) has been commercially used for vehicle positioning. However, it cannot be applied in environments as tunnels or interiors of buildings. The PRT navigation system based on magnetic markers reference sensing that can overcome these environmental restrictions and the vehicle dynamics model for its H/W configuration are presented in this study. In addition, the design of a control S/W dedicated for unmanned operation of a PRT vehicle and its prototype implementation for experimental validation on a pilot network were successfully achieved.

• Proceedings of the KIEE Conference
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• 2003.10b
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• pp.265-267
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• 2003

무인자동운전으로 운행되는 경량전철시스템을 시험선에 구축함에 무선통신을 기반으로 하는 신호 제어시스템의 시험평가내용을 정의하였다. 특히 자동열차제어를 담당하는 장치의 시험평가를 길이있게 다루었다. ATO컴퓨터의 시험평가에는 정차시험 및 역구내용주행시험으로 구분하여 시험종류 및 방법을 기술하였다. CBTC역컴퓨터에 대해서는 시스템구축에서부터 안전성 가용률평가까지의 시험절차 및 이에 필요한 평가설비구성을 논하였다.

• Journal of Bio-Environment Control
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• v.9 no.4
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• pp.237-243
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• 2000

Agricultural machine is currently operated by man power in the greenhouse, which is oppressively hot and humid, and is for a farmer not to work in comfortable circumstances. In the future, agricultural machine will not have to operate by man power, but it will need do by unmanned power. In order to put into the automatic and unmanned operation of agricultural machine, this system was designed and built to move through the fixed path in the greenhouse. This system was composed of guiders(wires), a limit switch, an operating equipment, its software for automatizing a machine in the greenhouse. The guider was connected between the wall pillars, and the equipment was able to slide over the fixed path made of the guider, by rectilinear and rotational motion. A micro mouse was developed with a stepping motor to calculate on the success rate of its operation with the system As might be expected, this system with the micro mouse was moved the moved the paths with a success rate of 100% on the flat plane surface in our laboratory. However, on the sand plane or the other materials plane, the success rate was not better than 80%. If the micro mouse were well operated, the success rate was would be 100%. Based on the results of this research, this system would be expected to operate well on the path made of a simple wire.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.1
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• pp.261-272
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• 2013

LRT(Light Rail Transit), which has many merits compared with Heavy Rail Transit, is an effective public transport. Therefore, many local governments are pushing ahead with LRT. Busan had already adopted LRT(AGT)s like Busan Subway Line 4(Bansong Route) and Busan Gimhae Light Rail Transit(BGLRT) domestically for the first time. This study analyzes user satisfaction about the services of adopted LRTs and set right priorities of remeding their shortcomings from the user's perspective. In this paper, we surveyed safety consciousness and services satisfaction of LRT(BGLRT) users, and made two User Satisfaction Models of each LRT(BGLRT and Bansong Route) using Structural Equation Model. With established User Satisfaction Models(BGLRT Model and Bansong Route Model), we compared BGLRT and Bansong Route. Finally we found the measures and priorities for the improvements of LRT's services in the aspect of LRT users.