Autonomous Theft Proof Robot for Item Delivery

Abstract - This paper presents the design and implementation of an Autonomous Theft-Proof Robot for Item Delivery. It aims to provide a secure and efficient solution for last-mile delivery in indoor and semi-structured environments. The proposed system combines autonomous navigation, obstacle detection, and a secure authentication method to prevent unauthorized access to delivered items. A Raspberry Pi-based controller manages sensor data collection, motor control, and security functions. Ultrasonic sensors allow for real-time obstacle detection, while the A* algorithm is used for autonomous path planning to ensure efficient navigation and dynamic rerouting. When the robot reaches its destination, access to the delivery compartment is limited by a password-based system that activates a servo-controlled locking mechanism only after successful verification. Experimental tests conducted in an indoor environment show reliable navigation, effective obstacle avoidance, and secure item delivery. This system provides a low-cost, scalable, and secure solution that is suitable for campuses, hospitals, offices, and institutional facilities.