• Surya U.M.
• Akash R.
• KNK. Samraaj
• C.SABARINATHAN

In the course of recent year’s scientific knowledge has been radically changing the lifestyle in the general public, consequently lives for the present age, has been fundamentally improved by totally getting reliant on new advances. In this proposal, we tried to accomplish a semiautomatic or smart tray system that wants a minute manual work but can carry any amount of weight based on the battery backup, motor’s torque and speed. Indeed, even a crash happens if obstructions emerge far out. Smart Tray system works with the help of PIC microcontroller and other sensors which are used to identify the presence of a user. Travelers often face problems as it causes inconvenience to push or pull these trolleys around and turns out to be observably painful to carry the heavy luggage. The human following smart tray is a non-traditional tray that has the capability to follow the human rather than being taken on by the human. While carrying the luggage the Smart tray acts as an obstacle avoiding human following robot. Ultrasonic sensors produce a high-frequency sound wave and get the reverberation reflected by the objective. A transmitter and receiver sensor are used to communicate with the mobile. The mobile application is designed such that the mobile and the tray can communicate with each other. The human following tray uses the mobile’s accelerometer sensor’s output to know how to the direction of the user and to move towards that particular direction. The human following tray has a MEMS sensor which helps in guiding the direction for the tray by providing the axis correspondingly. The microcontroller after receiving the input from the Ultrasonic sensor and the accelerometer provides the output for the four-channel relay which controls the DC motor and in turn, it controls the direction of the wheels. Our point is to structure a shrewd tray that follows the human that can avoid the travelers in carrying heavy luggage.

Tray, DC motors, Ultrasonic sensors

"Human Following Intelligent Tray System ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 5, page no.59-62, May-2020, Available :http://www.jetir.org/papers/JETIRDV06015.pdf

"Human Following Intelligent Tray System ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 5, page no. pp59-62, May-2020, Available at : http://www.jetir.org/papers/JETIRDV06015.pdf