The primary objective of such this project is to achieve an optimal level of control of occupant comfort while minimizing energy use. Monitoring temperature, pressure, humidity occupancy, and flow rates are key functions of modern building control systems.

1. ST. MARTIN’S ENGINEERING COLLEGE
An Autonomous Institute
A Non Minority College | Approved by AICTE | Affiliated to JNTUH, Hyderabad | NAAC-
Accredited ‘A+’ Grade | 2(f) & 12(B) status (UGC) ISO 9001:2008 Certified | NBA Accredited |
SIRO (DSIR) | UGC-Paramarsh | Recognized Remote Center of IIT, Bombay
Dhulapally, Secunderabad – 500100
DEPARTMENT OF ELECTRONICS AND COMMUNICATION
PROJECT NAME: Design Of Wireless Sensor Network
For Building Management Systems
GUIDE NAME: Mr. G. Upender
M. Tech., (Ph.D)
By N. PREM KUMAR -16K81A0438
T. SRIYA SHARMA -16K81A0458
YOUNESH JAYARAMAN -16K81A0460

2. Abstract
The main goal of the project is to develop a wireless sensor network that collects
the information from a set of sensors and forwards information to the remote
server. The data on the server will be processed by the software, and display over
the android app. This work describes a method of creating a wireless sensor
network.

3. INDEX
• Introduction
• Existing and Proposed systems
• Block Diagram
• Hardware & Software Components
• Schematic Diagram
• Advantages
• Applications
• Result
• Conclusion
• Future Scope

4. Introduction
• Building management system (BMS) also known as building automation
system (BAS) refers to a computer-based control system that needs to be
installed within buildings.
• Monitors temperature, pressure, humidity occupancy and flow rates are
key functions of modern building control systems.
• The primary purpose of this system is to achieve an optimal level of
control of occupant comfort while minimizing energy use.
• A BMS has to be properly installed and commissioned for optimal
operation and to realize potential savings.

5. Existing and Proposed Systems
• A Survey on an Efficient IOT Based Smart building proposes an efficient
implementation for IoT for monitoring and automation system and it uses
portable devices as a user interface.
• Portable devices can communicate with the home automation network
through an Internet gate, employing low power communication protocols
like Zigbee, Wi-Fi, etc.
• This also describes how to provide a fully smart environment and condition
monitoring by various sensors like Temperature, Humidity, Light, and Level
for providing necessary data to automatic detection and resolution of any
problem in the devices.

6. A simple example of building automation system

7. Block Diagram
• Main section
Block diagram of the transmitter
5V Power
Supply
RF
Arduino
DHT 11 Sensor
DC Fan
LED
LDR
Smoke Sensor

8. • Receiver section
Block diagram of the receiver
5V
Node
MCU
RF
Android App

9. Hardware Components
1. Arduino Nano
2. Power Supply
3. LDR
4. DC Fan
5. DHT 11 Sensor
6. LED
7. Smoke Sensor
8. Node MCU
9. RF Module
Software Components
1. Arduino IDE compiler
2. MIT app inventor

10. Arduino Nano
• Arduino is an open-source
electronics platform based on
easy-to-use hardware and
Software.
• Simple board
• The simple clear programming
environment.
• Extensible hardware and software

11. Node MCU
• Node MCU is an open-source IoT
platform.
• firmware which runs on the ESP8266
Wi-Fi SoC from Espressif, and hardware
which is based on the ESP-12 module.
• Node MCU includes CPU core, faster
Wi-Fi, more GPIOs, and supports
Bluetooth 4.2, and low power
Bluetooth.

12. Comparison of microcontrollers

13. RF Module
• An RF module is a small size
electronic device, that is used to
transmit or receive radio signals
between two devices.
• The main application of the RF
module is an embedded system to
communicate with another device
wirelessly.
• Main requirements for RF
communication are RF transmitter
and RF receiver

14. Schematic Diagram
• Schematic Diagram of Transmitter

15. • Schematic Diagram of Receiver

16. Advantages
• Fewer electricity bills:
As the amount of energy being consumed is reduced, the amount of electricity
associated with that energy consumed will also be decreased.
• Easy Installation:
Adding a WSN to an existing building can lead to a double-digit percentage
decrease in operating costs over a period of years. Not only do energy costs decline
significantly, but wiring costs and hassles become a thing of the past.

17. • Safety and Security:
Safety and security are the other benefits of a wireless sensor network. Wireless
sensor network systems are incredible in security, thereby ensuring the safety of
the people residing in the building.
• Comfort:
By more closely monitoring temperature, humidity, and ventilation, environmental
control helps improve comfort level depending on the number of people involved.
One study indicated a 3% increase in employee productivity when optimizing the
comfort level.

18. Applications
• Fire/Smoke Detection and Alarm:
In hazardous situations such as fires, deployment of wireless sensors could provide
more information about the conditions within and around a building for first
responders.
• Energy Information Management:
An energy management information system (EMIS) is a performance management
system that enables individuals and organizations to plan, make decisions and take
effective actions to manage energy use and costs.

19. • Flood Management Assistance:
Sensors collect data from multiple sources such as rain gutters, sewer systems and
pump stations, to monitor fluctuations in water levels and water quality. If an alert
triggers, having a network camera in proximity to visually verify the situation helps
responders determine the best course of action.
• Lighting systems:
Smart lighting is to cover the automation of lamp responses, such as dimming or
on/off control to enhance user comfort and save energy. An ambient light sensor
(ALS) can be used to detect the amount of natural light available, allowing
a lamp's output to be adjusted accordingly.

20. Result
Change in the mode of Fan and Light

21. Screenshot of Android Application

22. Conclusion
• This project demonstrated how wireless sensors and actuators can be integrated
into the existing Building Management System framework. provided battery life
extended into multiple years, meaning that these networks will have to be
rigorously energy efficient.
• Our results are preliminary and further experimentation is required to
successfully validate our hypothesis of the benefit of using an ad hoc multiple
sensor architecture that provides a benefit of higher energy conservation and
added thermal comfort.

23. Future Scope
• It is important that any further work in developing the technology core in the
field of sensor networks is done keeping in mind the potential users of these
networks, and what their needs are. This project is based on Wi-Fi but can be
further continued by adding advanced technologies like Zigbee and GSM.

24. Thank You