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The
'Online Device Controller (ODC) is a multi-channel hardware administration system
that has been developed to enable the control of equipments and appliances from
any part of the world, through the Internet. The concept of ODC is a relatively
new one, and makes use of Common Gateway interface (CGI), a very powerful technique
that was hitherto used solely for e-mail, database access and other 'soft' purposes
involving dynamic web page content. But, through this project we have made an
attempt to bring a very powerful but often unknown and underutilised aspect of
CGI; the same technique used to manipulate our e-mail accounts can equally well
be applied to access the parallel port of the web server, and control hardware
through it. Our project, the 'Online Device Controller' allows a remote user to
login to the Web server and control the devices connected to the server. Also
provided is the feature to control the same devices locally, through a Cordless
Telephone.The present
product offers the facility to remotely control an ON/OFF device and an Intensity
Variable load, through the Internet, and locally through a Cordless telephone
and is a product of paramount significance in office, industrial and household
applications.
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