The document discusses various electronic gadgets that are used in shopping malls, including sensor doors, metal detectors, CCTV cameras, escalators, fire alarms, barcode scanners, credit card payment machines, computers, vacuum cleaners, hand dryers, automatic sensors for urinals and taps, light sensors, generators, and Wi-Fi networks. These electronic devices help automate and monitor various functions in the shopping mall for convenience, security, and maintenance purposes.

1. Electronic gadgets Used in shopping mall
Xavier institute of polytechnic and technology
Guided by:- Presented by:-
SIR ABHISHEK KUMAR PRAWEEN LAKRA
E.C.E. BRANCH
ROLL NO.: 19
SESSION: 2015-2018

2. contents
 1. Sensor Door/Sliding Door.
 2. Metal Detector.
 3. CCTV’s.
 4. Escalator/Lifts.
 5. Fire Alarm.
 6. Barcode Reader/Scanner.
 7. Swipe Machine.
 8. Computers.
 9. Vacuum Cleaner.
 10. Hand Dryer.
 11. Automatic Urinal Flusher.
 12. Automatic Sensor Tap.
 13. LDR Lights/bulb.
 14. Generator.
 15. Wi-Fi.

3. Sensor Door/Sliding Door
• A sensor door (or sliding door ) is a device that
operates a sliding door for walker. The door
automatically opens and close.
• Several types of automatic doors are outfitted with
sensors. These sensors are usually mounted above
the door, and it emit an electromagnetic or infrared
beam. It sense to movement and operates the door.

4. Metal Detector
• A metal detector is an electronic device which
detects the presence of metal. Metal detectors are
useful for finding metal hidden within objects.
• l detectors work by transmitting an electromagnetic
field from the search coil. Any metal objects
(targets) within the electromagnetic field will
become energized and retransmit an
electromagnetic field of their own.

5. CCTV’s.
• Closed-circuit television ( CCTV ), is the use
of video cameras to transmit a signal to a different
place, on a limited set of monitors.
• The camera comes with a motor that helps it to
move the zoom parts. Once an image has been
picked by the camera, it is taken to the monitor
and then recorded on video tape.

6. Escalator/Lifts
• An escalator is a type of vertical transportation in
the form of a moving staircase – a transporting
device for carrying people between floors of a
building.

7. Fire Alarm
• A fire alarm system has a number of devices to
detect and warn people through visual and audio
appliances when smoke, fire, carbon monoxide are
present. These alarms may be activated
automatically from smoke detectors , and heat
detectors.

8. Barcode Reader/Scanner
• A barcode reader (or barcode scanner ) is an
electronic device that can read and output printed
barcodes to a computer . it consists of a light
source, a lens and a light sensor translating optical
impulses into electrical ones.

9. Swipe Machine
• It is an electronic device for payment system
involving electronic funds transfers based on the
use of payment cards , such as debit or credit cards
, at payment terminals located at points of sale.

10. Computers
• A computer is a device that can be instructed to
carry out an arbitrary set of logical operations
automatically. The ability of computers to follow a
sequence of operations, called a program, make
computers very flexible and useful.
• It helps keep track of sales items stock and other
similar things and also staff lists and its easier then
writing it on paper or keeping it in staff’s head.

11. Wi-Fi
• Wi-Fi is a technology for wireless local area
networking for different devices.
• A wireless access point communicates with
computers and other Wi-Fi devices using radio
signals. This Wi-Fi access point is connected to the
internet and is usually connected to a router or a
server that regulates who can access the Wi-Fi.

12. Vacuum Cleaner
• A vacuum cleaner, also know as a sweeper, is a
device that uses an pump, to create a partial
vacuum to suck up dust and dirt, usually from
floors, and from other surface.

13. Hand Dryer
• Hand dryers are electric devices found in public
washrooms . They may either operate with a
button or automatically using an infrared sensor.
• Hand dryers consist of a heating element. The
heating element is generally made of Nichrome
.Air is blown over the heating element which
makes the air warm. The air is blown out of a tube
that points downward and focuses the air onto the
hands.

14. Automatic Urinal Flusher
• Automatic urinal flusher are electric devices found
in public washrooms . It operates automatically
using an infrared sensor.
• When the user stands in fronts of a urinal, the
infrared sensor detects her body heat. After the
user is finished and walks away, the infrared sensor
detects the loss of heat and activates the flush
mechanism.

15. Automatic Sensor Tap
• An automatic sensor tap is a new technology tap
that work automatic, when we place your hand in
front of tap.
• An automatic sensor taps combine four key
components : Solenoid valve, infrared sensor,
power source, and a tap unit. Transforming
electrical energy into motion, the solenoid
physically starts and stops the water flow.

16. LDR Lights/bulb
• An LDR light/bulb is an electronic light that has a
resistance that changes with the light intensity that
falls upon it. This allows them to be used in
sensing circuits.
• The most application for an LDR is to
automatically turn on a light at a certain light level.

17. Generator
• A generator is a device that converts mechanical
energy to electrical energy for use in an external
circuit.
• It woks on the principle of electromagnetic
induction.

18. Bibliography
• https://en.wikipedia.org/wiki/
• Self understanding

20. Any Question…?