GSM BASED SCADA IMPLEMENTATION USING MICROCONTROLLER PDF

This project is also designed to protect the electrical circuitry by operating an Electromagnetic Relay. This Relay gets activated whenever the electrical parameters exceed the predefined values. The Relay can be used to operate a Circuit Breaker to switch off the main electrical supply. User can send commands in the form of SMS messages to read the remote electrical parameters. This system also can automatically send the real time electrical parameters periodically based on time settings in the form of SMS. This also can be designed to send SMS alerts whenever the Circuit Breaker trips or whenever the Voltage or Current exceeds the predefined limits.

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Microcontrollers are also used in scientific, high technology, and aerospace projects. Microcontrollers are designed for small or dedicated applications. Some microcontrollers may operate at clock rate frequencies as low as 4 kHz, as this is adequate for many typical applications, enabling low power consumption mill watts or microwatts Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, remote controls, office machines, appliances, power tools, and toys.

A microcontroller can be considered a self-contained system with a processor, memory and peripherals and can be used with an embedded system.

Microcontrollers must provide real time response to events in the embedded system they are controlling. When certain events occur, an interrupt system can signal the processor to suspend processing the current instruction sequence and to begin an interrupt service routine ISR, or "interrupt handler". Embedded processors are usually used to control devices, they sometimes need to accept input from the device they are controlling.

This is the purpose of the analog to digital converter. Since processors are built to interpret and process digital data, i. So the analog to digital converter is used to convert the incoming data into a form that the processor can recognize.

There is also a digital to analog converter that allows the processor to send data to the device it is controlling. The instruction set includes instructions to perform a variety of operations on registers directly, the accumulator and a literal constant or the accumulator and a register, as well as for conditional execution, and program branching.

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GSM based SCADA implementation using Microcontroller

Microcontrollers are also used in scientific, high technology, and aerospace projects. Microcontrollers are designed for small or dedicated applications. Some microcontrollers may operate at clock rate frequencies as low as 4 kHz, as this is adequate for many typical applications, enabling low power consumption mill watts or microwatts Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, remote controls, office machines, appliances, power tools, and toys. A microcontroller can be considered a self-contained system with a processor, memory and peripherals and can be used with an embedded system.

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Next skip 5. Controlling the electrical appliances. Initialization of ADC module of microcontroller. Embedded C program. PCB designing. Different electrical sensors. Interfacing sensors to controller.

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The GSM network can be divided into following broad parts. Figure GSM Network. Figure GSM Network along with added elements. This is the area that is paged when a subscriber gets an incoming call. The GSM specification is listed below with important characteristics. We also changed the information by demodulating the signal at the receiving end. One or more carrier frequencies are then assigned to each BS.

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