Functions
Because event recorders are integrated with most car-borne systems, they are an attractive target for enhanced diagnostic and control functions. Some event recorders feature outputs controlling penalty brake or emergency brake (train) systems, and speedometers.
Data storage can be provided by magnetic tape, battery-backed RAM and, more recently, non-volatile EEPROM or Flash Memory overwritten in a FIFO continuous loop. The data is intended for use in the investigation of accidents and incidents but is also used to monitor traction unit performance, the competence of drivers, and general state of the train over a period of time.
Read more about this topic: Train Event Recorder
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