| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable display of information about equipment to be controlled to be managed by a plurality of controllers as one monitor picture by integrating the information, to relieve a communication load of a network and to enable high speed display of the monitor picture. SOLUTION: The respective controllers C1 , C2 , etc., manage one or more pieces of object equipment R11 , etc., R21 , etc., and R31 , etc., to be controlled. When a monitor picture providing request is generated from portable monitor terminals MT1 , MT2 , etc., a monitor controller 4 obtains required information by performing filter registration of required equipment R to be controlled in the controllers C1 , C2 , etc., and generates a Web page to be the monitor picture. The filter registration is valid only for prescribed valid time and when the request is generated from the portable monitor terminals MT1 , MT2 , etc., within the valid time, the Web page is generated at high speed without performing the filter registration. Thus, the monitor pictures for the plurality of pieces of the equipment to be controlled are provided at high speed without increasing the communication load of the network 6.</p> |
