Data exchange in a transport system using positive and negative half-waves of an alternating signal for transmitting the data

摘要

The method involves transferring (410) control commands from a control unit to a vehicle. The status messages are transferred (420) from the vehicle to the control unit. The changeover signal is provided (430) by a signal generator, where the changeover signal is switched to two data lines. The time sequence of the changeover signal is changed (440) to transfer the control commands and the status messages. The switching device is controlled (450) in the control unit to change positive half-waves of the changeover signal. Another switching device is operated (460) in the vehicle to change negative half-waves of the changeover signal. An independent claim is included for a vehicle control system for data exchange in a transport system with a control unit.