The document discusses smart home technologies that utilize visible light communication (VLC) for improved automation and connectivity of household devices. It highlights the drawbacks of existing home automation technologies like X10 and proposes VLC-based solutions that increase reliability, convenience, and energy efficiency. Additionally, it emphasizes the benefits of smart homes for users, including enhanced security and support for the elderly.

1. SMART HOME TECHNOLOGIES USING
VISIBLE LIGHT COMMUNICATION
By,
D.JOTHISRI
3rd year, B.Tech (IT)
Mailam engineering college
.

2. OVERVIEW
 Introduction.
 Smart Homes
 Existing Technology.
 Drawbacks of existing technology.
 Proposed technology.
 Components.
 Advantages.
 Conclusion.

3. INTRODUCTION
 Technology is triggering a change in the way we live, the
desire we pursue and expectations of what is possible.
 smart home has so much attention and is a promising
technology for increased comfort, safety and security.
 With smart home technologies, household items, such
as lamps, and locks, are becoming connected wirelessly
and smarter.

4. SMART HOMES
 Smart homes are developed by utilizing light information
transmission.
 Smart home technologies using visible light data
transmission are presented.
 For numerous gadgets, bidirectional wireless VLC
connection is used.

5. EXISTING TECHNOLOGY
 The Existing technology used in home automation is X10
house electric wiring.
 X10 is a communication protocol for home automation to
construct the smart home
 X10 sends 120 kHz radio frequency of digital information
onto a home's existing electric wiring to programmable
outlets or switches.

6. DRAWBACKS OF EXISTING TECHNOLOGY
 X10 was not always fully reliable.
 Signals would be lost and, in some cases, signals
wouldn't cross circuits that were wired on different
circuits.
 X10 was initially a one-way technology, so while smart
devices can take commands, they cannot send data back
to a central network.
 A Two-way X10 devices became available, albeit at a
higher cost.

7. PROPOSED TECHNOLOGY
 The proposed technology is named as Smart Home
Technologies using Visible Light Communication.
 Sensors are installed over all devices in a typical room,
together with the control unit.
 This control unit will provide instructions to devices
and/or notify the remote or home user.
 The users will be able to receive the notification on a
mobile device via the VLC downlink or wireless
networks.

8. VISIBLE LIGHT COMMUNICATION
 Visible light communication (VLC) is a data
communications technology which uses visible light
between 400 and 800 THz.
 VLC is a subset of optical wireless communications
technologies.
 VLC can be used as a communications medium for
ubiquitous computing, light-producing devices.

9. ARCHITECTURAL DESIGN OF SMART HOME
 A home or building equipped with specially designed and
structured wiring .
 These components are used to enable appliances to
remotely control or program an array of automated home
electronic devices by entering a single command refers
to a smart home.
 It refers to the use of computer and information
technology to control home appliances and features.
 Home automation is adopted for reasons of ease,
security and energy efficiency .

10. DESIGN OF SMART HOME
Architecture of Smart Home system

11. COMPONENTS OF SMART HOME
 Smart Phone
 LED transmitter
 LED Receiver
 Switch
 Home Appliance
devices
Functional Description

12. DESCRIPTION
SMART PHONE
 A smartphone is a handheld personal computer with a
mobile operating system and an integrated cellular
network connection for voice , SMS and Internet data
communication.
 They are able to run a variety of software components,
known as “apps”.

13. LED TRANSMITTER AND RECEIVER
 A LED transmitter is an electronic circuit which
transforms electric power from a battery or
electrical mains into alternating current.
 A power supply circuit to transform the input
electrical power to the higher voltages needed to
produce the required power output.

14. HOME APPLIANCE DEVICES
 Home Appliances are the devices used for the
home domestic usage such as
Washing Machine.
Smart TV.
Refrigerator.

15. ADVANTAGES
Convenience
 Convenience is one of the biggest reasons that
people build and purchase smart homes.
Security
 Smart homes include advanced security systems
with cameras, motion sensors and a link to the
local police station or a private security company.
Efficiency
 Smart homes offer enhanced energy-efficiency.
Lights can shut off automatically when no one is
in a room when not in use.

16. CONCLUSION
 Smart homes are also beneficial for the elderly, providing
monitoring that can help seniors to remain at home
comfortably and safely, rather than moving to a nursing
home or requiring 24/7 home care.
 Home automation also helps consumers improve
efficiency.
 smart home technologies are most beneficial than
conventional homes.