| 摘要 |
Master control facility for monitoring operating processes, with a projection screen (3) for the visual presentation of a stationary functional diagram (34), and operating states in spatial correspondence within the operating diagram. Said master control facility is provided with at least one energy ray beam (7) which may be directed onto selected points of impact (38) on the surface of the projection screen by means of an electronically operated deflection device (50), and which may be converted on said points of impact into essentially diffuse reflected or emitted light, with generation of a visually perceptible image (36'). A laser (52) serves above all as an energy beam source, optical elements for directing the beam being disposed in the path of the rays within the deflection device (50). Said elements are controlled by electronic control circuits (10), by which pictorial information from a microcomputer (12, 14, 16, 18) as well as from a master computer (20) may be processed.
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