Authors: Prof. Manisha Mhatre, Omkar Patil, Mohit Patil, Saurabh Patil
Certificate: View Certificate
People\'s living standards have improved as a result of modern technologies. As a result, there was a large crowd at the mall. To control the huge crowd, we must streamline the billing procedure. A smart shopping system based on RFID is used to accomplish this. Once each item in a smart shopping cart has been read thoroughly, the bill is generated and displayed. after the last A bill is printed. The customer pays the money using the pre-charged cards that the shopping complex has provided. The objective is to reduce time consumption. It makes use of RFID technology, which can scan a large number of things and help save both customers\' and the mall\'s valuable time.
Shopping at large malls and hyper cities is presently becoming a daily activity in major cities, according to the current situation. As a result, malls had heavy traffic throughout weekends and holidays. After paying for the item at the billing counter, the cashier prepares the bill by scanning the item's barcode, which takes time. As a result, long lines are common in the mall, and shoplifting has recently increased as a result, causing a significant financial loss for the establishment. Shopping centres are becoming more congested and malls are experiencing heavy traffic due to the expanding population in cities. Customers must therefore wait in a lengthy queue for billing and when there is not enough staff for billing. Our team developed a smart shopping cart to address these problems.
To do this, simply equip the shopping cart with an RFID reader with an LCD and RFID tags for the products. With the help of RFID and an LCD, the consumer will need to be aware of the price of each item that is scanned into the system; the LCD will display the item's entire cost. This method will save mall patrons' time and lessen the labour force requirements. It is frequently used in shopping centres to lighten the staff's workload.
II. LITERATURE REVIEW
The methodology for implementing the smart trolley system using RFID technology involves several key steps and components. Firstly, RFID tags are integrated with product items, where each tag contains essential information such as the product name, price, and expiry date. These tags are strategically placed on the products to ensure accurate detection and reading during the shopping process. The communication between the RFID readers and the microcontroller unit is established through a specific protocol. RFID readers are selected based on their compatibility and performance requirements. The readers transmit the data captured from the RFID tags to the microcontroller unit, which acts as the central processing unit of the system. The microcontroller unit processes the received data by retrieving product details from the database server. This involves querying the database using the information obtained from the RFID tags, such as the unique product identifier. Additionally, real-time stock tracking algorithms may be implemented to ensure accurate inventory management. The microcontroller unit also performs billing calculations based on the detected products and their corresponding prices. Each component used in the system undergoes a detailed analysis. RFID tags are evaluated based on their technical specifications, such as frequency range, read range, and memory capacity. RFID readers are selected and analyzed based on factors like communication protocols, read speed, and compatibility with the microcontroller unit. The microcontroller unit is chosen considering its processing power, memory capacity, and support for interfacing with the database server. The database server is selected based on its ability to handle large amounts of data and provide fast response times. The proposed methodology is validated through an experimental setup. Hardware and software configurations are established, and the system is tested in a controlled environment. Performance metrics such as accuracy, response time, and usability are measured and analyzed. Any limitations or challenges encountered during the experimentation are also discussed. The results obtained from the experiments provide insights into the effectiveness and feasibility of the smart trolley system using RFID technology. In conclusion, the methodology for the smart trolley system using RFID technology involves integrating RFID tags with products, establishing communication between RFID readers and the microcontroller unit, processing data, and conducting a component analysis. The experimental setup validates the proposed methodology and provides valuable insights into the system's performance and usability.
A flowchart for a smart trolley system using RFID can help visualize the sequence of steps involved in the system's operation. Here's an explanation of a basic flowchart for such a system:
C. Block Diagram
The system block diagram for the smart trolley using RFID comprises essential components such as the power supply, Arduino Nano, EM 18 Module (RFID), buzzer, and LCD display. The power supply ensures the proper electrical power distribution to all components of the system. The Arduino Nano acts as the central processing unit, receiving and processing data from the RFID reader. The EM 18 Module serves as the RFID reader, emitting radio waves to read the unique identification data stored on the RFID tags attached to the products. When an RFID tag is successfully read, the Arduino Nano triggers the buzzer to produce an audible signal. Simultaneously, it controls the LCD display, presenting the retrieved product details, including the name, price, and other relevant information. This system architecture enables seamless data processing and real-time information display, enhancing the shopping experience for users of the smart trolley.
IV. RESULTS AND DISCUSSIONS
All of the experimental components were covered above, and the suggested system's LCD is utilized to show the cost of the product. The suggested model is simple to use, doesn't need specific training, and is readily available. The user will spend less time in the billing queue thanks to the reduction in staff. The ability to service multiple users at once benefits both customers and retailers. This intelligent billing solution guarantees both time and financial efficiency. The smart trolley attempts to speed up the billing process. By letting consumers create a shopping session that lasts until the customer requests it be automatically cleared as well as storing the data of each item in the basket by using RFID tags in order to make data entry easier. By showing the buyer the whole price, it also helps them stay inside their budget when purchasing. As online shopping becomes more popular and less of a hassle, stores are introducing eco-friendly smart carts as well as smart baskets that not only help them reduce crowds but also cut down on the amount of paper used, employees needed, and money that would otherwise be wasted printing duplicates of bills. The usage of RFID technology-based smart carts is therefore very critical or crucial. The results of customers' shopping are displayed on Liquid Crystal Displays in terms of price, item name, and occasionally a warning that a product is no longer in stock. The procedure proceeds as when items are added and the sum of items is cumulative in action as the RFID Reader scans the products from RFID tags and displays the item name and cost.
Guidance throughout the project and researching was provided by Prof. M. Mhatre. Our sincere gratitude to HOD Instrumentation department and VIT Pune Instrumentation department for this opportunity.
The EM-18 reader, an Arduino, and RFID technology were used to complete the task. Its objective is to reduce the amount of time spent waiting in long lines for billing so that customers gain, and handling inventory is made easier. Whenever there is a hurry to get inside a store as there is plenty of foot traffic, it might be employed at shopping malls. This intelligent tram system has a significant impact. on the development of technology in the field of automation. This technology will replace the barcode system that is currently in use. As a result, this sort of equipment has been used to shorten queues and lines at billing counters, facilitating quick transaction completion for customers.
 RFID JOURNAL, 2002-2007, REFFERD 6.8.2007, http://www.rfidjournal.com  https://www.researchgate.net/publication/322537108_A_SMART_TROLLEY_WITH_RFID_IMPLEMENTATION_A_SURVEY_AMONG_CUSTOMERS  Shankar,S. K., Balasubramani, S., Basha, S. A., Ariz Ahamed S., Kumar Reddy, N. S. 2021. Smart Trolley for Smart Shopping with an Advance Billing System using IoT, 5th International Conference on Computing Methodologies and Communication.  Pavni Swaroop, AkshitaParasari, Mansi Singh, Shobha Rajput, 2020. A Review paper on Smart Trolley System forAutomated Billing using RFID and IoT, International Journal of Creative Research Thoughts (IJCRT), 8(7) 2978-2982.
Copyright © 2023 Prof. Manisha Mhatre, Omkar Patil, Mohit Patil, Saurabh Patil. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.