3625 Remote visual inspection volume three: Validation of the use of remote visual inspection techniques

Overview:

The intention of EI 3625 Remote visual inspection volume three: Validation of the use of remote visual inspection techniques is to evaluate the inspection capabilities of drones relative to close visual inspection (CVI) to facilitate good practice throughout the industry.

CVI forms a cornerstone of integrity assurance and is often the primary means of detecting and sizing surface defects. Recent advances in technologies, such as unmanned aerial vehicles (UAVs) or drones, have led to their increased use. Remote visual inspection (RVI), using these technologies, can present benefits, such as minimising potentially hazardous CVI activities. However, studies exploring the capabilities and limitations of RVI to inspect a variety of materials for defects of different types and sizes are currently limited in both number and scope.

In collaboration with a group of industrial partners, a series of trials has been completed with the aim of evaluating the inspection capabilities of drones relative to CVI. In particular, to develop the evidence base for the types and sizes of defects and degradation that can be reliably inspected with current drone and camera technology.