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Flat crossing safety protection device is the use of computer communication technology, image processing technology, signal processing technology, intelligent detection technology, sound and light technology, etc. to establish a set of integrated information management system integrating train approach alarm, road signal control, video surveillance forensics and emergency plan control. To achieve full coverage monitoring of all railroad rolling stock, motor vehicles and pedestrians entering and leaving the yard level crossing, to achieve the goal of "early detection, good control and good disposal", and to provide scientific management technical means for the safety supervision of the railroad level crossing in the yard.