Remote Supervising of Power Plant

Abstract

With the fast growth of power plant, traditional communication protocol cannot meet the actual requirements. We have to find a way to deal with this situation. In this paper, we put forward an information model and a communication protocol for remote supervising of power plant. Based on our information model, a supervised object is the basic and the least unit of supervising information. A supervised object contains 6 elements. We developed a Supervising Information Library termed as SIL to manage and store supervised objects. The SIL employs an arborescence structure. A branch contains a group of supervised objects. And each leaf stores a single supervised object. We proposed a proprietary protocol, abbreviated as RSPPP at the application layer of communication protocols. RSPPP Protocol works in 4 operation modes. The message of RSPPP protocol includes three fields and is described by Abstract Syntax Notation One. TLV (Type, Length, and Value) method is used to encode message for transmission. In our system, an Acorn RISC Machine is used as the central processor. The μC/OS II is employed as operating system. Our system occupies a ROM space of about 920 bytes and a RAM space of about 710 bytes when running in AT91SAM9263.