Abstract— The main aim of the paper is to process the real time data acquisition wirelessly under supervisory control for small and large scale remote industrial environment. In large industrial establishments many processes go on, therefore it is essential to monitor all the processes and control the factors affecting them. Adapting a technology like WIRELESS SCADA (Supervisory Control and Data Acquisition) one can achieve the above mentioned objective effectively, and thus saving a lot of manpower. For achieving this real-time scenario, a temperature & transformer logging system for a remote plant operation is taken. Here temperature sensors & voltage sensors are duly interfaced to the 8051 microcontroller. Data collected from the temperature sensors & voltage sensors are constantly sent over 2.4 GHz transmitter wirelessly to the microcontroller which is then received at the matched 2.4 GHz USB type receiver connected to a PC / Laptop. One can set parameters like set point, low limit and high limit on the computer screen. When the temperature & voltage of sensors goes beyond set point the microcontroller sends a command to the corresponding relay. The heaters (shown as lamps) connected through relay contacts (corresponding to their sensors) are turned OFF (or ON in vice versa). Hence, processes at hazardous areas can be controlled with more accuracy and better safety using SCADA. Adapting such a technology will save both money and time.
Keywords— SCADA, Zigbee, Embedded systems, Temperature sensors, transformer.
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