A Portable, Diver-Operated, Underwater Pumping Device

A Novel Portable Scissors-Type Fruit Picking Device

At present, the fruit picking in most countries still largely relies on manual operation. Manual fruit picking can protect the fruits from damage during the operation process. However, it is time-consuming and labor-intensive, and poses a potential safety risk to the workers while working at heights not reachable. Therefore, a variety of fruit picking machines and platforms have been developed ...

Diver-Portable Multi-Sensor Buried Mine-Hunter

Diver-based Control of a Tethered Unmanned Underwater Vehicle

Human-robot communication with an underwater vehicle is a complex problem. Standard wireless communication protocols are unavailable, and the lack of direct supervision from surface-based operators reduces situational awareness and operational efficiencies. Here we describe recent research results with tethered operation of autonomous vehicles at depth by diving operators. We review different o...

Quantifying Relative Diver Effects in Underwater Visual Censuses

Diver-based Underwater Visual Censuses (UVCs), particularly transect-based surveys, are key tools in the study of coral reef fish ecology. These techniques, however, have inherent problems that make it difficult to collect accurate numerical data. One of these problems is the diver effect (defined as the reaction of fish to a diver). Although widely recognised, its effects have yet to be quanti...

Design and Fabrication of a Portable 1-DOF Robotic Device for Indentation Tests

There are many tactile devices for indentation examinations to measure mechanical properties of tissue. The purpose of this paper is to develop a portable indentation robotic device to show its usability for measuring the mechanical properties of a healthy abdominal tissue. These measurements will help to develop suitable mathematical models representing abdominal tissue. A 1-DOF portable robot...