Presented in this paper is the implementation of alarm and graphics gateway based on an embedded platform that adopts embedded devices with neither fans nor hard drives. Device data are collected through IEC 61850 manufacturing message specification (MMS) protocol. The real-time library adopted by the shared memory and hash algorithm as index and the file type storage are used as data storage medium. The message bus as the mode of middleware is adopted as the medium throughout the application processes of the interior of gateway for data exchange between different programs. The DL/T 476—2012 protocol is used to exchange data between the gateway and the dispatching center

which sends the alarm string information to the alarm direct pass and the CIM/G graphic files and graphics refresh data for the remote browsing to the dispatching center. Finally

a minimized system of alarm and graphic gateway is developed

with the functions of acquisition

storage

configuration

management

conversion

services and forwarding all in order and with the application of direct alarming and remote browsing customized. It is proved by testing and pilot application that the alarm and graphics gateway completely meets the functional requirements of alarm direct pass and remote browsing.