Design of Web remote monitoring system without operating system

DENG Wei-wei, HE Yan
（College of Electrical Engineering， Zhejiang University， Hangzhou 310027， China）

Abstract： In order to relax the contradiction between the low cost of system building and high level system requirements in large-scale remote monitoring networks，the scheme of Web remote monitoring without operating system was investigated. Aiming at the background without operating system，the design issues of Web server with no file systems， common gateway interface（CGI） and high-level language support were analyzed. With the introduction of  light weight IP（LWIP），a concept of virtual CGI was put forward referring to the idea of CGI implementation，then the dynamic interaction between the client and server side was established. The scheme was evaluated on LM3S8962 system，and the remote experiments of furnace temperature control were studied. The experimental results show that the scheme can effectively monitor the objective remotely，and achieve the same performance of system based on PC before.
Key words： remote monitoring；Web server；light weight IP（LWIP）；common gateway interface（CGI）