08-03-2011, 11:41 AM
ABSTRACT
In this project we have studied about an integrated wireless SCADA system for monitoring & accessing the performance of remotely situated device parameter such as temperature, pressure, humidity on real time basis. For this we have used the infrastructure of the existing mobile network, which is based on GSM technique Supervisory Control and Data Acquisition (SCADA) is a field of constant development and research. This project investigates on creating an extremely low cost device which can be adapted to many different SCADA applications via some very basic programming, and plugging in the relevant peripherals. Much of the price in some expensive SCADA applications is a result of using specialized communication infrastructure. The application of infrastructure, in the proposed scheme the cost will come down. Additionally the generic nature of the device will be assured.
Wireless SCADA deals with the creation of an inexpensive, yet adaptable and easy to use SCADA device and infrastructure using the mobile telephone network, in particular, the Global System for Mobile communication (GSM). The hardware components making up the device are relatively unsophisticated, yet the custom written software makes it re-programmable over the air, and able to provide a given SCADA application with the ability to send and receive control and data signals at any non predetermined time. GSM is a global system for mobile communication service that enables “always on” connections, eliminating repetitive and time-consuming dial-up connections. From the wireless SCADA system which is proposed in setup the temperature of around 30oC could be sufficiently recorded from remote location.