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.