Display device and on-vehicle information display method

摘要

A train driver's cab display device (100) comprising an image-producing process unit (20) that displays the status of instruments installed in a train car, and a data compilation unit (30) having: a signal definition retaining unit (33) that retains a signal definition, which is the source of a first signal requesting information of the status of the instruments installed in the car; a signal mapping management unit (31) that acquires constituent information including the number of train cars and travel direction information, and on the basis of the signal definition and constituent information, generates a first signal and requests the instrument status information; a signal data storage unit (35) that retains the value of a second signal, which is instrument status information acquired by the request of the signal mapping management unit (31); and a signal mapping generation unit (34) that, on the basis of the constituent information acquired from the signal mapping management unit (31), generates signal mapping information designating a sequence of cars on a display screen on which the instrument status is displayed and outputs the signal mapping information to the signal data storage unit (35).