FAULT MONITOR

摘要

PURPOSE:To discriminate whether or not an object exists in a monitored area by moving a visual field of an image pickup device when the object enters the visual field of the image pickup device so as to obtain A 3-dimension coordinate of the object and comparing it with the 3-dimension coordinate representing the monitored area. CONSTITUTION:When an object is invaded in the visual field of the image pickup device 1, an image pickup visual field moving means 7 moves the picked-up visual field to obtain the 3-dimensional coordinate of the invaded object via a position conversion means 8. Then the 3-dimension coordinate of the invaded object is compared with the 3-dimension coordinate representing the monitoring area stored in advance in the monitor area memory 10 and a fault discrimination means 8 discriminates whether or not the invaded object exists in an optical monitor area present in advance. Through the constitution above, a monitor with mis-information by the invaded object on the same visual line is obtained.