Handheld Ultrasonic 3D Mapping: A Low-Cost, Portable Real-Time Spatial Visualization System

18 Aug

Authors: Goutham J, C Lithish, Dabbara Adithya, Darshan M

Abstract: Handheld ultrasonic 3D mapping systems provide a promising alternative to expensive and bulky LiDAR or optical-based approaches, particularly in environments where GPS is unavailable or optical visibility is limited. The proposed system uses ultrasonic sensors to perform time-of-flight measurements, converting echo signals into accurate distance data that can be reconstructed into a three-dimensional model of the surrounding environment. By integrating these sensors into a compact, portable device, real-time data acquisition and visualization are made feasible without relying on costly equipment. The solution emphasizes affordability, portability, and accuracy, making it accessible for a wide range of applications. This handheld system demonstrates significant potential in robotics, where precise spatial awareness is essential for autonomous navigation and obstacle avoidance. In construction and civil engineering, it enables quick and non-destructive mapping of indoor spaces and infrastructure. Similarly, it supports environmental monitoring by providing efficient, real-time 3D visualization of terrain and objects. The design highlights the advantages of ultrasonic technology—operating reliably in conditions where optical methods fail, such as low light or smoke. With future enhancements in resolution, range, wireless integration, and advanced processing algorithms, handheld ultrasonic 3D mapping devices could become indispensable tools across industrial, research, and societal domains, offering both cost-effectiveness and practical usability, and paving the way for broader adoption in diverse industrial and research domains.

DOI: https://doi.org/10.5281/zenodo.16892277