STM32-based intelligent following trolley

Abstract In this paper, we design a kind of cart that uses ultrasonic module to realize automatic target following, which can realize high-precision target following. Existing following methods have distance and hardware limitations, this paper uses a single transceiver ultrasonic module to form a triangle with the target to follow the target by comparing the length of the distance between the two sides, the hardware cost is low and less interference can be stabilized following. We also designed a host computer to facilitate the control of the cart. Finally, we tested the following ability of the trolley, and the results show that the trolley’s steering reaction speed can meet the requirements, and the following is accurate and fast.