A Survey on RFID Based Smart Shopping System and Automated Billing

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 10 Issue: 03 | Mar 2023 www.irjet.net p-ISSN: 2395-0072
© 2023, IRJET | Impact Factor value: 8.226 | ISO 9001:2008 Certified Journal | Page 1057
A Survey on RFID Based Smart Shopping System and Automated Billing
Namith C1, Thanush S V1, Vibhuti Bisht1, Vishnu G Upadhya1, Prof. Kiran Y C2, Indu B3
1Undergraduate Student, Department of ISE, Global Academy of Technology, Bangalore.
2Head, Department of ISE, Global Academy of Technology, Bangalore.
3Asst. Professor, Department of ISE, Global Academy of Technology, Bangalore.
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Abstract - In traditional malls, during checkout each item
is scanned individually, this increases the time for billing. In
recent years the concept of convenience storehasundergonea
phase of evolution due to the vital changes in the consumer’s
lifestyle. Studies show that on an average, 5-10 minutes is the
maximum tolerable amount of time customers are willing to
wait in line. Customers feel that unoccupied time feels longer
than occupied time. The existing checkout systems use Bar-
codes. Replacing Bar-codes with RFID tags, multiple itemscan
be scanned thereby saving time. Radio Frequency
Identification System (RFID) concept uses communicating
with the RFID tag at different frequencies. RFID readers
communicate with RFID tags using radio waves. Therefore, it
is not necessary that the tag is in the reader's field of
view to be scanned. The aim of this survey is to create a design
for a smart shopping cart based on RFID technology.
Key Words: Radio Frequency Identification (RFID)reader,
RFID tags, Barcodes, flutter application.
1.INTRODUCTION
The advancement in technology makes use of the concept of
sensors. This is the underlying notion in IoT in which the
data can be sent from one place to another in no time with
the help of Internet. Earlier, RFIDs were used in warehouse
management. RFID has led to a refinement in information
technology that has profoundly altered people's lives.RFIDs
have a much more complex mechanismthan barcodeswhich
provide more security. RFIDs possess the advantage of
reusing it thereby saving money. So, tagging each item with
an RFID and scanning it while shopping,speedsuptheentire
process and therefore eradicating queues.
RFID has an edge over standard barcodes. This is owing to a
severe drawback of line-of-sight technology as well as the
short lifespan of these barcode tags. RFID tags, on the other
hand, are resistant to tampering and can read and write
encrypted data. These tags can store large amounts of data,
such as product information like unique product identifier,
product name, price, and expiry date.
RFID can locate and track tags affixed to things using
electromagnetic waves. An RFID system can be identified in
three parts: a transceiver, a scanning antenna, and a
transponder. An RFID reader or interrogator is produced
when the scanning antenna and transceiver are joined. The
transponder is present on the body of the RFID tag. There
are two distinct types of tags: Active and Passive.
An active RFID tag has its own power source, whichisoften a
battery. Electromagnetic waves from the reading antenna
generates a current in the passive RFID tag's antenna,
energizing the tag.
Attempting to read many tags at once may result in signal
collision and finally data loss. At an extra cost, anti-collision
techniques can be employed to prevent this. These
techniques, which seek to minimize overall read time while
increasing the number of tags read concurrently, are still
under development.
The overall problem of RFID collisions may be divided into
two categories:
1. When a reader tries to interact with tags that are in
another reader's seeing range, a reader collision occurs.
Signal interference occurs when the fields of two or more
readers interact and overlap with eachother.Bysetting each
reader's reading schedule to occur at a little different time,
this problem can be solved.
2. Multiple reads of the same tag occur when it is read by
each overlapping reader more than once.
In a normal store, the products are placed in different
shelves and racks. Keeping track of these in-memory would
be a hectic task. By storing all this information in the
database can decrease the work for the in-house associates.
Taking a 2-Dimensional map of the entire store, the
coordinates of the products can be marked by therespective
aisle number and the rack number they are present in.
Due to numerous utilities, smartphones have become an
indispensable part of our lives. Google’s Flutter software
development kit is a tool that helps in developing native
cross-platform (Android and iOS) applications using one
programming language and one code base.
2. OBJECTIVES OF THE SURVEY
1. Identify and describe the key technologies, components
and architectures employed in RFID-based smart shopping
and automated billing systems.

2. Review the advantages and shortcomings of RFID-based
smart billing and shopping systems, considering how they
impact consumer satisfaction, operational efficacy,andcost-
effectiveness.
3. Analysis and contrast differentstrategiesandsolutions for
RFID-based smart shopping and payment systems.
3. LITERATURE REVIEW
Martinusa et al. [1] discusses a system consisting of a smart
shopping cart, a smartphone application, a cashier
application, and a database, where peoplecanscantheitems
themselves and the cashierperformsthepayment.Eachitem
in the supermarket will have an RFID tag containing the
item's identifier and price. The database includes all
information about every smart cart as well as each
transaction that the supermarket's system has triggered.
Before proceeding to the cashier, the consumer inputs the
One Time Password (OTP) into thewebapplicationtoobtain
the relevant transaction list and finish the checkout process.
Some of the advantages are tracking the current location of
the cart, self-scanning and simplifying things by a factorof2.
One of the limitations is in the flexibility of payment.
RFID technology is used in study [2] as proposed by Shaikh
Farhan Shahnoor et al. to monitor purchased products for
billing purposes. The checkout locations can confirm the
customer's purchases. It uses an RFID Reader, a Wi-Fi
module and an LCD Screen. The technology hasanimpacton
crowd management, effectively automates billing and saves
customers’ time. It does not have a phone-based optional
application which would further reduce the time escalate
customer satisfaction.
The components employed in [3] Thashini Krishna et al.
work is, an Arduino Mega, an RFID reader, an RFID tag and a
Bluetooth module. It implements an autonomous cart that
can move without being pushed using multiple ultrasonic
sensors. The scanning is incorporated into theshoppingcart
itself, and the scanned items are sent via a Wi-Fi module to a
computer installed in the supermarket. The significant
benefit of using an automated cart is that customers can
quickly navigate through the cash counter and check out
themselves.
The Arduino, LCD Display, ZigBee, Wi-Fi Module, and RFID
Reader are the devices utilized in study [4] proposed by
Rahul Chauhan et al. It assists consumers in locating the top
offers on well-liked goods. The rating of a product is given
according to its popularity and preference. It lacks security
safeguards such as verification or authentication that the
shop and the client may both employ.
An RFID-based Smart Shopping Automation System (SSAS)
with an automatic bill calculator is employedinarticle[5] by
F. Piyush Raj Rouniyar et al. All the merchandise in the mall
have RFID tags attached, and the exitgateisa locationwithin
the mall with a modern RFID reader, LCD displays, sensor
equipment, a microcontroller, and a backend server
connection for computations. It focuses on saving the
customers time and money. It is more trustworthy since it
solely focuses on the exit gate.
[6] By Miss. Shubhangi et al. uses RFID Reader, Transmitter
and receiver, Power supply, and Arduino Nano. The
recommended system helps in tracking detailed versions of
product information and gives productsuggestionsbasedon
the user's purchase history from a centralized system. Total
bill details are transferred to the personal computer (PC) at
the checkout counter, through wireless transmitter and
receiver modules. This futuristic approach cultivated in this
project is echo friendly as it eliminates usage of paper.
Ng Xin Jie et al. [7] describes the latest and sophisticated
RFID technology in order to minimize the theft problem by
making use of the tracking mechanisms.ItusesRFIDtotrack
the relevant information and then transmit it to the host
system. Moreover, it aids in the provision of a self-checkout
system and provides a payment feature so that customers
may pay conveniently. It has been advised that it can also be
used in supermarket parking systems.
The product unique identifier produced bytheRFIDin[8] by
the author, Sakorn Mekruksavanich et al. Server's database
is compared to the product identifier that was generated.
Furthermore, the promotional materials are a means of
assisting customers in making an effective purchase. During
the purchasing action, thebillinginformationisupdated, and
the bill is simultaneously displayed. All the IoT components
in the store may easily connect with one another using
Zigbee. Also, it offers a comparison button to rate all
comparable products on the store.
Introduction of a smart queue system defined by Naresh
Babu Muppalaneni et al. [9] seeks to cut down waitingtimes.
It also provides a useful means of having a flexible, minimal
fuss and extreme framework for convenient means of
purchasing support. It features an LCD display and an RFID
reader to enhance the system’s security measures. With
information like time, date, and product characteristics, it
stores the data in database in .csv(comma-separatedvalues)
format.
In [10] Shreya et al. describes shopping recommendations,
product search, indoornavigation,andvoice-basedshopping
assistants. Shopping recommendations are basedonApriori
algorithm that recommends productstocustomers based on
their valuable shopping history and current items in their
shopping cart. Use Bluetooth Low Energy (BLE), Random
Forest Regression, and RFID modules. Indoor navigation is
supported by Wi-Fi and BLE networks, as traditional GPS
(Global Positioning System) services are best suited for
outdoor services.

The author Ruchi Gupte et al. of [11] explains how
collaborative clustering can beusedtoenhancetheshopping
experience and satisfy clientrequests.TheRFIDreaderanda
Zigbee module used to upload user data are in the trolley.
The customer must scan the item once again to remove it. It
has been able to identify groups of related products and
determine the connection between any two products by
utilizing K-Means clustering.
The study [12] by Parameswaran Ramesh et al. discusses a
smart trolley, which has an RFID reader, RFID tag, voice
board, LCD display, QR online payment scanner, and
childcare unit. The major objective of this work istoenhance
the RFID-enabled payment process that is used on the
trolley. It also concentrates on developing a model for
automatic billing by including a childcare unit and QR
scanner in the shopping cart.
Aarthi Rameshkumar et al. defines [13] that customers can
add or remove items from their carts by using the
membership card that has been allotted to them. Cards can
be recharged and used for payment for successful and
quicker transactions, reducing customer wait time at the
billing counter. Using collision detection technology, the
system can prevent labels frombeingrecognizedrepeatedly.
To ensure a successful and easy shopping experience, the
scanned products and their prices are displayed.
The author [14] Manikandan T et al. describes how an RFID
reader, operated by a micro-controller is installed in a
shopping cart to scan each item that is loaded into it. A
distinctive RFID customer card containing all necessary
details about the consumer and the amount they have
previously deposited will be given to each new customer.
Customers must scan their smart card with the RFID reader
included in the shopping cart to collect and assign shopping
carts. After proper analysis, the customerwill beprompteda
password for authentication.
Ms. Rupali Sawant et al. [15] discusses an RFID-based smart
shopping cart concept in the retail field. The proposed
system would replace UPC codes with RFID tags that
communicate with an infrared sensor that detect each item
in a cart. This reader would be connected to a large network
that would send product information to retailers and
product manufacturers via a ZigBee module. When a
customer enters the aisle with a shopping cart, the cart
encounters the infrared receiver and the microcontroller
looks for the aisle information code. The aisle information
code is transmitted wirelessly from the cart to the server via
ZigBee. The database is queried based on the aisle number
received. The product can be placed in the cart and the RFID
reader will read the tag.
S. Sai Ganesh et al. [16] described a customer picking up a
shopping trolley. Each trolley consists of an RFID reader as
well as a barcode reader. When a customer buys a product,
they first scan the label with an RFID reader before adding it
to their trolley. Price of the productis retrievedandstoredin
the system's memory when the customer scans the product
label. The product name and price are displayed on the
screen.
[17] By Ankush Yewatkar et al. suggests equipping each cart
with an RFID reader and ZigBee Module. An online billing
method is implemented. If a product is removed from the
cart, it will be erased from the invoice. The RFID reader
installed at the exit door adopts anti-theft mechanism.
Offers/discountsareavailablebasedoncustomers`shopping
habits.
Tejas Patil et al. [18] defines an intelligent shopping cart to
display the total price of the products present in the
shopping cart. This allows customers to pay the amount
directly at the application or billing counter. The
components used are an Arduino Uno, an RFID reader
module, and a buzzer.
Amruta Pokale et al. designed a smart trolley that facilitates
the customer's shopping experience [19]. With the help of
the application, carts are assigned to customers. Product
details such as the product name and price are displayed on
the screen mounted on the trolley. Payment can be made
using various payment options provided at checkout.
The system proposed [20] by Gogikar Bharath Kumar et al.
contains Radio Frequency Identification (RFID) sensors,
Arduino little regulator, a Bluetooth module, and a Mobile
application. The data is shown in the mobile application
when the user scans the product at the billing counter. This
structure suggests replacing standard and monotonous
systems with the use of emerging technologies such as IoT
and Android.
4. CONCLUSION
RFID has a wide range of applications in retail that go
beyond straightforward operational advantages to actively
enhance the consumer experience. In its simplest form, it
involves actions like boosting product availability and
providing convenient services by allowing shop employees
to spend more time serving consumers. A comprehensive
and existent picture of everything makes it feasible to
improve customer service and elevate sales. The smart
navigation feature is one among the sophisticated features
that could be enabled in the application.
Overall, the use of RFID speeds-up the billing process, thus
enhancing customer shopping experience.
REFERENCES
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