인터콘시스템스(주)

OBCS (On Board Computer System)

The on-board computer system (OBCS) of the Korea Train eXpress (KTX) consists of MPU, APU, and TPU Rack and controls the status of major functional items installed in the train. This is a system that supports train operation and maintenance by providing and recording vehicle status to drivers in real time.

Characteristics of OBCS

International safety verification in the railway field Safety verification completed by a professional organization
Securing vehicle communication network reliability by applying redundancy technology
Maintain compatibility with existing KTX OBCS

Business cases of OBCS

Development of KTX’s domestically produced OBCS
Development of KTX’s domestically produced FDTR
Development of KTX’s domestically produced BHS

MPU(Main Processing Unit)

As the main computer device of OECS, it is installed on the power car and performs train control and monitoring functions, and provides a guide function for troubleshooting when a train malfunction occurs.

APU(Auxiliary Processing Unit)

It is installed in the power car and performs the backup function of the main computer so that the train can operate normally if the main computer unit (MPU) malfunctions. Additionally, the APU performs the TORNAD* router function, which is KTX's communication network.

TECA(Terminal Cabin)

It is installed in the driver's cab of the KTX and processes the train's status and fault indication in conjunction with the on-board computer system(OBCS). During train maintenance or pre-departure inspection, TECA is used to check the condition of the train and enable the driver to take corrective action if a breakdown occurs during operation.