| 摘要 |
PURPOSE:To recognize accurately plant information by selecting stored pictures related to a plant and photographic information of positions related to the plant and superimposing them to a video signal related to plant information from a computer controller and displaying them. CONSTITUTION:Various process information indicating the operation state of a process such as temperature and flow rate are inputted to a computer controller 3 from a plant 1 through an input/output device 2, and the computer controller 3 performs prescribed operations to control the operation of the plant 1 through the input/output device 2 on demand. In relation to the plant 1, operation methods for the occurrence of abnormality, outward appearances of a furnace and a reaction tank as temperature measurement objects, etc. are stored in a picture storage device 7. TV camera 8a, 8b- are installed in such positions that conditions of the plant 1 are grasped. Video signals from the device 7 and cameras 8a, 8b- are selected by a selecting circuit 9 in accordance with commands from the controller 3 and are sent to a superimposing circuit 5 and are superimposed to the output of the controller 3 and are displayed on a display device 6. |
