| Title |
A Study on Integrated Operation of VHF and Complex Communication Facilities for Railway |
| Authors |
김선교(Seon-Kyo Kim) ; 박동훈(Dong-Hoon Park) ; 한호현(Ho-Hyun Han) ; 강정원(Jeong-Won Kang) |
| DOI |
https://doi.org/10.5370/KIEE.2023.72.10.1256 |
| Keywords |
VHF; LTE-R; Complex Communication Facilities; RFCL |
| Abstract |
The need of improve the unified wireless communication command system has been raised to support cooperative work for the disaster control towel in case of the national event. In addition, the VHF (Very High Frequency) and TRS (Trucked Radio System) systems is no longer used after 2029 due to changes of government policy. Thus, the LTE-based LTE-R systems are being built in to replace the VHF and TRS in railway sector. The policy changes caused the mixture use of the VHF and LTE-R which is inefficient for the operators in railway communication system the tunnels and underground sections. Especially the mixture use system also potential threat to safety of train operation in disaster and emergency rescue. This study is about an alternative method for mixture use of the VHF and LTE-R to unified railway communication system using a leaky coaxial cable with a similar frequency band and coupling device for complicated communication facilities. Through the study, it might contribute to railway operators to improve in efficiency and safety especially in tunnels and underground sections using the VHF and LTE-R together, without loss of communication among the OCC, train crew, and maintenance worker. |