The main aim of the project is to acquire real-time data of distribution transformers remotely over internet falling under the category of Internet of Things-IOT. For this real-time scenario we take one temperature sensor, one potential transformer and one current transformer for monitoring T, V, I data of the transformer and then send them to a remote location anywhere in the world.
These three analog values are taken in multiplexing mode connected to a programmable microcontroller of 8051 family through an ADC 0808. Then the values of all the sensors are sent sequentially as per the frequency of multiplexing of the ADC by MC .
They are then sent directly through an Wi-Fi module under TCP IP protocol to a dedicated IP that displays the data in real time chart form in any web connected PC / Laptop for display in 3 different charts. The real time data is also seen at the sending end upon a LCD display interfaced to the microcontroller.
The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller , 3.3 volt for the Wi-Fi unit and other components.
- LCD display
- A to D converter
- Temperature sensors
- Voltage Regulator
- WiFi module as required
- Keil compiler
- Language: Embedded C or Assembly.