I presented our paper (https://doi.org/10.1109/ICASERT.2019.8934523) at the "1st International Conference on Advances in Science, Engineering and Robotics Technology (ICASERT)" conference in 2019. This paper proposes a smart IoT-based energy management system (EMS), which not only ensures transparency and credibility of energy data but also offers flexibility to the consumers by offering the facility of remotely controlling their home appliances.

1. 1. Department of Electrical and Electronic Engineering
Khulna University of Engineering & Technology
Khulna, Bangladesh
2. Department of Electrical Engineering and Renewable Energy
Oregon Institute of Technology
Klamath Falls, USA
3. Department of Electrical and Electronic Engineering
International Islamic University
Chittagong, Bangladesh
IoT Based Smart
Energy Management
in
Residential
Applications
Presented By-
Md. Rakibul Hasan
1
Co-Authors:
 Eklas Hossain
2
 Hossain Mansur Resalat Faruque
1
 Tipu Sultan
3

2. OUTLINES OF THE TALK
PRESENT CONDITION OF ENERGY METERING SYSTEM
WHAT IS IOT?
IOT BASED SMART ENERGY METER
COMPARISON WITH EXISTING WORKS
PROBLEMS AND SOLUTION
COST ANALYSIS
CONSLUSION
DISCUSSION SESSION
2

3. PRESENT CONDITION OF ENERGY
METERING SYSTEM
3
Manual Metering
• A lot of time and
steps
• Complexity
• Error Prone
• No safety against
theft
Prepaid Metering
• Absence of tele
control
• Absence of
efficient server
system for
recording

4. WHAT IS IOT?
 Internet of Things
 Interconnects the ‘Things’ over the Internet
 Things- goods, buildings, appliances, machines,
vehicles, plants, animals, and even human beings
 IoT is a bidirectional approach
 objects export data to a distant server
 users can control that objects through the server by
software programs
4

5. IOT BASED SMART ENERGY METER
 Solve the issues of
Manual meter and
Prepaid meter
 Real-time
consumption data
 Remote Controlling
of Home appliances
5

6. IOT BASED SMART ENERGY METER
(Contd.)
6
NodeMCU
Pin Diagram:

7. IOT BASED SMART ENERGY METER
(Contd.)
7
Power Supply of NodeMCU:

8. IOT BASED SMART ENERGY METER
(Contd.)
8
Hardware
Implementation:

9. IOT BASED SMART ENERGY METER
(Contd.)
9
Webpage:

10. IOT BASED SMART ENERGY METER
(Contd.)
If 𝑏 is the number of blinks of the ‘Cal’ LED
The total energy consumption (kWh) is
𝑎 =
𝑏
3200
If 𝑠 and 𝑑 are the service charge and demand, then
the associated cost
𝑐 = 𝑎 × 𝑘 + 𝑠 + 𝑑
Here, 𝑘 is per unit price of energy in (BDT)
10
Necessary Calculation:

11. COMPARISON WITH EXISTING WORKS
Authors Microcontroller Optocoupler Tele- Control
Abate et al. [11] STM32F205RB Not used Not available
Sahani et al. [12] ATMega328 MOC3071 Not available
Singh et al. [13] ATMega328 and PIC16F877P Not used Not available
Proposed Built-in
microcontroller in
NodeMCU
4N25 Available
11

12. PROBLEMS AND SOLUTION
Supply
Interruption
• Data is stored periodically in the internal
of the NodeMCU
• At starting, it extracts the most recently updated
data from the memory
Internet
Connection
Interruption
• Data are always updated and stored in the
internal memory of NodeMCU
• Sent to the server whenever the internet is
available
12

13. COST ANALYSIS
Product Title Market Price
Liberty Prepaid Energy Meter BDT 9880
Techno Prepaid Energy Meter Class 1.0 BDT 5070
Elmeasure Prepaid Energy Meter BDT 5000
Meter by Yueqing Haixin Electronic Company BDT 2540
13
TABLE: PRICE OF AVAILABLE PREPAID METERS IN MARKET
Equipment Market Price
Universal Energy Meter BDT 430
Add-ons
NodeMCU V-3 Development Kit BDT 500
4N25 Photo Transistor
Optocoupler
BDT 15
Voltage Step Down Circuitry BDT 120
Total BDT 1065
TABLE: COSTING OF DIFFERENT EQUIPMENTS OF THE IOT BASED ENERGY MANGEMENT SYSTEM

14. CONCLUSION
14
Efficient way of collecting data from a server through internet
Less labor cost by power supplier
Automatic update after a short time interval via Wi-Fi.
Dual functionality of a microcontroller and a Wi-Fi module in
Remote control of domestic appliances
Cost Effectiveness

15. Discussion Session
 Any Question?
15