Unidirection insulation network brake with protocol conversion function

The invention proposes a novel solution method for network insulation of power generating plant information system. The inventive one-way insulation GAP with protocol conversion function can realize one-way transmission of data between a power generating plant decentralized control system DCS and a superviser information system SIS, and between the superviser information system SIS and information management system MIS. On the basis of guaranteeing one-way transmission of computer network data with different safety grades, the single-phase insulation GAP increases a special protocol converter, supports dual network card binding of the apparatus, and can connect with a redundant kernel switch and a formicating server, thereby realizing the unify of interface function and network insulation function, reinforcing the safety protection capability and having an obvious economic benefit.