| Title |
Performance Improvement of Message Transmission over TCN(Train Communication Network) |
| Authors |
최명호(Cho Myung-ho) ; 문종천(Moon Chong-chun) ; 박재현(Park Jaehyun) |
| Keywords |
Train Communication Network ; Multifunction Vehicle Bus ; Message Transmission ; Event-Polling Algorithm ; Slave Frame Bit-Stuffing Algorithm |
| Abstract |
The data transmission over MVB(Multifunction Vehicle Bus) of TCN(Train Communication Network) is divided into the periodic transmission phase and the sporadic transmission phase. TCN standard recommends the event-polling method as the message transfer in the sporadic phase. However, since the event-polling method does not use pre-scheduling to the priority of the messages, it is inefficient for the real-time systems. To schedule message transmission, a master node should know the priority of message to be transmitted by a slave node prior to the sporadic phase, but the existing TCN standard does not support any protocol for this. This paper proposes the slave frame bit-stuffing algorithm, with which a master node gets the necessary information for scheduling and includes the simulation results of the event-polling method and the proposed algorithm. |