Railroad crossing obstacle detection device and train safe operation system using the same

摘要

To provide a detection device capable of reliably grasping an obstacle regardless of the surface shape and reflectance of the obstacle and capable of self-diagnosis of an operation state. A first signal indicating whether or not a reflection point of a laser beam is included in a predetermined monitoring area AR is built-in. Dti, second signal Non indicating whether or not reference pole Pai, sensor circuit SNa that outputs third signal ER indicating self-diagnosis result, first signal, second signal, and third signal are determined And a railroad crossing control unit that takes a necessary corresponding operation. [Selection] Figure 2