Line Follower Smart Trolley System V2 using RFID

Shopping in supermarket have become a variety of experience for everyone as stores innovate new technologies to support their buyers or customers. One of important innovations was a shopping trolley, inspired by wire shopping baskets held with a folding chair, doubling the quantity of items shoppers can carry as what they want to buy. The design for shopping trolley continuously changes and evolves to satisfy customers' experience when shopping. In this paper, we focus to develop our previous research on shopping trolley, which will be called as smart trolley V2. The smart trolley V2 will adopt line follower model and using RFID (Radio-Frequency Identification) for localization. The smart trolley V2 is designed to have four Mecanum wheels which can go omni-directional moves without the need to rotate. This design is enabling the trolley to move easily from one to another position as desired. The development uses Arduino board as microcontroller to process input from an infrared sensor and RFID reader to support the robot in taking ways to move to a selected location. Finally, the results of the experiment on smart trolley navigation are presented. The result is our smart trolley V2 based on Mecanum wheels and RFID can follow the line and navigate to its destination easily.