31-05-2012, 01:27 PM
WEB BASED MONITORING AND CONTROLING OF INDUSTRIAL PROCESSES
WEB BASED MONITORING .pptx (Size: 306.03 KB / Downloads: 359)
INTRODUCTION
The World Wide Web has made it possible to send a lot of data from one side of the world to the other side in almost no time.
The use of the Internet for real-time interaction of the remote controlling and monitoring of the plants would give us many can advantages.
Two main problems should be faced before the web based control and monitoring can be implemented.
1.The aspect of time delay, which can lead to irregular data transmission
and data loss.
2. The problem of security.
WHAT IS WEB BASED MONITORING AND CONTROL ?
The web based monitoring and control (WBMC) can be described as the whole
of operations performed to control or monitor a system situated in a closed network.
It enables commercial data to their customers and managers.
Easily achieving the real time status of process plants , suitable for
implementing advance control.
It allows controllers to directly talk to the internet .
It can be used to monitor and control smart devices from the internet.
REQUIREMENT SPECIFICATIONS
Tasks, which require a deterministic timing regime should be avoided because
they may not be achievable due to web-related traffic delay.
It is necessary to minimize the communication load between the Internet level
and the existing control level.
Information exchange between process plants and Internet-based clients can
be achieved through corporate systems .
Reliability and the possible system failures should be also considered in order to
keep the system robustness from the system architecture point of view.
INFORMATION ARCHITECTURE
Resolution: Abstraction levels for data vary among all the levels in the architecture.
The higher the level is, the more abstract the data is.
Reliability: Just as communication response time must decrease as one descends
through the levels of the information architecture, the required level of reliability
increases.
Reparability: The reparability considers the ease with which control and computing
devices can be maintained.