Analysis of mechanical characteristics and development of vibration isolation mechanism for ground application of marine terrain measurement system

Abstract

In recent years, there has been a growing demand for terrain measurement systems using 3D laser scanners. There are two types of topographic measurement systems in use: Mobile Mapping System (MMS) and Unmanned Aerial Vehicle (UAV). MMS has lower survey error than UAV. In addition, both MMS and UAV are very expensive. One type of MMS is a 3D scanner for marine topography measurement, which is mounted on a ship. The accuracy of the marine scanner is between that of a land-based MMS and a UAV, but due to the special nature of its application, its utilization rate is low and it is not fully utilized. In this theme, we analyze the mechanical properties of the Merlin 3D scanner for marine use and develop a vibration-isolation mechanism for use on land, aiming to develop a system that can be used more easily than existing MMS for land. This system will contribute not only to the efficiency of surveying at civil engineering sites but also to the development of disaster prevention such as the reconstruction of hazard maps.