Abstract: In order to further improve the existing oil dissolved gas monitoring device for harsh environment adaptability, remote management and monitoring, this paper proposes a design scheme on line monitoring system for gas dissolved in oil based on Goahead by studying the Vxworks operating system, combining Ethernet technology and using the B/S framework. First, the paper introduces the basic characteristics and the operation environment of hardware/software of Goahead Web Server, then discusses the key technology and design idea of Goahead Web Server in the development process in detail. With the HTML language, ASP language, JavaScript language and vector graphics library, achieves the dynamic webpage data interaction and information graphical real time monitoring function. The experiment results show that, this technology have good application value and market prospects.

Key words: Goahead, Vxworks, Web, gases dissolved in oil, JavaScript