Patent ID: 9221472
Filing Date: 2015-12-29
Classification: B61C,B61L,H04L

Abstract:
1. In a transport system having vehicles detachably connected to one another and a data transmission apparatus for wired data transmission between the vehicles and within the vehicles, the data transmission apparatus comprising: data coupling units each disposed in vicinity of a respective one of two ends of each vehicle and configured to transmit data between the respective vehicle and a vehicle connected thereto at its respective end, each of said data coupling units having at least one switch unit; first data connections each disposed in a respective one of the vehicles and configured to interconnect two data coupling units in the respective vehicle, said first data connections each formed of two first transmission lines and at least one segment connection unit interconnecting said two first transmission lines and having a line topology; redundant second data connections each disposed in a respective one of the vehicles and configured to interconnect said two data coupling units in the respective vehicle, said redundant second data connections being passive data connections; each of said data coupling units of a respective vehicle having four data ports including first and second data ports respectively connected to corresponding data ports of said data coupling unit of another vehicle, a third data port connected to said first data connection of the respective vehicle and a fourth data port connected to said second data connection of the respective vehicle; and said switch units configured to establish different electrical connection states of said data ports, including a first connection state having only said first and third data ports connected to one another, a second connection state having only said first and fourth data ports connected to one another, a third connection state having only said first and third as well as said first and fourth data ports connected to one another, a fourth connection state having only said second and third data ports connected to one another, a fifth connection state having only said second and fourth data ports connected to one another and a sixth connection state having only said second and third as well as said second and fourth data ports connected to one another.