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Smart Home System: a comprehensive Review Arindom Chakraborty, monirul Islam, Fahim ShahriyarBog'liq Smart Home System A Comprehensive Review3. Smart Home System
In the last decade, the SHS has achieved unprecedented
success, and researchers are continuously working to im-
prove on its past works. With the help of IoT, it is now easier
than ever to establish communication between home ap-
pliances and users. An IoT-based SHS has become the most
popular choice in recent years. By connecting all of the
devices through the Internet, it is now possible to maintain
all of the home equipment simultaneously. Users can now
monitor and control several aspects of their house from
anywhere in the world with the help of IoT-enabled devices.
Trough machine learning and artifcial intelligence, smart
homes can now recognize shapes, sounds, and gestures, thus
making the smart home experience much more comfortable.
Te availability of powerful processors facilitates the
implementation of much more complex and processor-
hungry smart home systems. To provide such services, all
smart home systems are built following a basic structure as
provided in Figure 7. It involves three phases as follows:
(i) Collection of information through sensors, cameras,
microphones, and other home appliances
(ii) Storing and processing the collected information
with the help of the main processing unit
(iii) Generating
results
and
delivering
services
depending on the processed information
In the frst step, the SHS uses sensors such as motion,
temperature, humidity, fame, gas, and LDR for collecting
atmospheric data alongside other devices such as a camera
and microphone for recording video and audio of home
occupants. Aside from these, the system can also use home
devices connected through IoT to collect information about
their status.
After collecting the information, it is sent to the main
processing unit either wired or wirelessly. Te processor
stores and analyzes the data and determines the next action
based on this information. For example, home temperature
and humidity are compared against a predetermined value,
and if the current value exceeds or vice versa, then a noti-
fcation is sent to the owner for further action. Similarly, any
intrusion detected on the camera is immediately reported.
In the fnal step, the information collected and processed
is used to provide various services such as home comfort,
intrusion alert, elderly care, and appliance control. Users can
control room temperature remotely and have the home
heated or cooled down before arriving. Similarly, by using
fame and gas sensors, any fre breakout or gas leakage can
instantly be found, and necessary steps can be taken. With
the help of machine learning, voice commands can be
carried out and gestures can be used to control appliances,
and with the help of artifcial intelligence, camera feeds can
be used to diferentiate between an intruder and home
occupants.
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