The mannered null hazard area which checks the functional reliability of the protection instrument and its device for safety protection

摘要

(57) I will provide a way to check the protective device for [summary] of safeguarding of [challenges] danger zone, the functional reliability of such devices. [MEANS FOR SOLVING PROBLEMS] protection device is provided with a (30) image recording unit having a (32) image sensor consisting of a (34) light-sensitive image point of the large number. During operation, the image recording unit (30) to record (50) target image. Test image test image is defined to check the functional reliability is supplied, recorded in the (32) image sensor, is compared with (46) the expected value defined image sensor (32) further that. Here, the target image that is dynamically changed by the test device (50) is used as a test image (Figure 2).