SUPERVISORY EQUIPMENT AND CENTRAL SUPERVISORY EQUIPMENT

摘要

PURPOSE:To reduce the installation and operation cost and to allow the system using the supervisory equipment to cope smoothly with extension or its recovery by adopting unified transmission system and communication procedure for the supervisory equipment for a remote supervisory control system and a central supervisory system. CONSTITUTION:Interface means 111-11n are designed to be modules corresponding to the transmission system of maintenance supervisory information sent/received based on remote supervisory control or each supervised device being an object of the remote supervisory control, and a communication procedure conversion means 13 and the equipment to be supervised are interfaced with each other as to the maintenance supervisory information. The transmission system for the transmission and reception and the communication procedure are unified for the maintenance supervisory information by the means 13 and the information is sent/received to/from a maintenance center through a multiplexer transmission channel by means of multiplex processing and inverse multiplex processing applied by a multiplexer means 15. Thus, the scale of the hardware of each supervisory equipment is made smaller than that of a conventional equipment, the installation and operation cost is remarkably reduced and the system copes flexibly with the extension or recovery of the equipment to be supervised.