NOTIFICATION SYSTEM

PROBLEM TO BE SOLVED: To provide a notification system where a failure is prevented by a notification. SOLUTION: The notification system 100 includes: a light emitting device 7 emitting visible laser light 41; a reflection device 40 disposed in a position sandwiching an area at which a floating crane 20 passes to the light emitting device 7, and reflecting the visible laser light 41 emitted by the light emitting device 7; a light receiving device 8 receiving the visible laser light 41 reflected by the reflection device 40; and a notification device 1. The notification device 1 includes: a light emitting part 11 making the light emitting device 7 emit the visible laser light 41; a detection part 13 detecting whether or not the light receiving device 8 receives the visible laser light 41; and a notification part 14 notifying that the visible laser light 41 is cut when the detection part 13 detects that the visible laser light 41 is not received. COPYRIGHT: (C)2011,JPO&INPIT