The invention provides a
system and method for
remote diagnosis of faults of a
train on passage, belonging to the field of
train transportation. The
system mainly comprises a portable detection device connected by virtue of a network, a special railway
management system and a fault diagnosis module, wherein the portable detection device comprises an intelligent
processing unit, an
infrared temperature measuring unit, an image capturing unit, an audio recording and playing unit, a network transmission unit, a locating unit, an interface and a
power supply unit; and the special railway
management system comprises a data
server, a management platform and an emergency commanding and repeating terminal. The method in the invention comprises the steps of sending pictures and data of a fault which are acquired by the portable detection device to a remoter
database, diagnosing by a professional, then sending a diagnosis result back to the portable detection device and repairing timely by a
train field operation worker according to the diagnosis result, thus a safety hidden trouble caused by faulty operation of the filed operation worker lack of professional knowledge can be eliminated, a circuit can be ensured to be in operation timely and the transportation efficiency is improved.