Embedded Internet Device Web Monitoring Research And Development,

It has various advantages that embedded devices merges into Internet and is supervised via Web service. Along with Embedded Internet coming forth, embedded devices can connect Internet and be supervised straightway. This way will become the leading orientation of telemonitoring technology.This paper researches industrial Ethernet, embedded Internet, Web telemonitoring and means of embedded devices connecting to Internet, puts forward it is a effectual, economical, feasible way that VPN technology combines to Web supervision of embedded Internet, which has bright prospects. It not only obviates ubiquitous the problem of lack of IP resource, but is safe and economical. It undoubtedly is a feasible way of embedded Internet Web supervision.Aiming at complexity, unhandiness, slow-response of Web supervision system of single device, this paper realizes a Web supervision system of multi-device based on ActiveX, using completion port model which is the best I/O model in Winsock. The system can supervise multi-device synchronously with one Web page, show all usable devices in network left; show corresponding supervision interface right, including basic info of device and configuration, digital quantity displaying, curve of analog quantity displaying; build supervision interface dynamically; alarm; detect powerup and powerdown of devices automatically. Achieving telemonitoring on the whole control network using Web browser.Experimental result indicates that system can monitor and control synchronously all devices on control network with one Web page, and is simple, fast and easy to control. Web supervision technology of multi-device based on embedded Internet has practical significance to research and develop further integration of telemonitoring with Web page.