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Underwater Electric ROV

What is an ROV?

Remotely Operated Vehicles (ROV) are some types of an underwater robot that are able to complete many different underwater tasks.  The underwater survey, shipwreck recoveries, inspections, search and sunken rescue and much more.

Where can an ROV be used?
ROVs can solve some of the major maritime security issues today. Seaport / Port Security and Surveillance, Ship Inspections, Pipeline Inspections, Oil Rig Surveillance and Inspections, Docking Perimeter Inspections and Detection, Barge Inspections, Docked Cruise Ship Inspections, Tanker Security, and Inspections.

ROV history

ROVs were initially produced for military applications, and the continued development was primarily due to growth in offshore oil and gas exploration. During the mid-1980’s the marine ROV industry suffered from serious stagnation in technological development caused in part by a drop in the price of oil and a global economic recession. Since then, technology development in the ROV industry has accelerated. Now a variety of new markets is finding needs for ROVs such as oceanography, fishing, civil engineering, security, mineral prospecting and other.

ROV Construction

ROVs are free flying at the operator’s commands and in some instances programmed to fly in certain patterns or locations. However, ROVs are always attached to a control center usually based above the surface. The ROV and control center are attached to each other by an “umbilical” cable (or tether). The “umbilical” provides the power and data uplink between the control center and ROV. All the operating commands and information collected by the ROV are sent back and forth to each other through the “umbilical” wiring. In some instances, the “umbilical” is reinforced with strength enhancements for recoveries.


ROV Basic features

Thrusters which the ROV will be able to movement and reposition. Cameras and Hydrophones (underwater microphones) which the operator will be able to see and hear what is going on. Various Sensors, depending on the applications, ROVs can be equipped with many different sensors such as water temperature sensors, depth sensors, and sonar. The arm which makes the ROVs enable to grip, Move, Collect and do physical operations.


ROV Types

There are many different types of ROVs.  Work Class ROVs and inspection ROVs. Inspection ROV usually uses to underwater survey, inspections, and searches. They are also able to do the operations but in very limited orders. “Work Class” are very large in size and have lots of accessories and tooling. These “Work Class” ROVs are used for deep water trenching, cable burial, repair jobs and the recovery of larger objects. “Work Class” ROVs are an essential world tool, making today’s underwater jobs less of a challenge.


Why Electric ROV?

ROVs divided into two main categories. Electric ROVs and hydraulic ROVs. Hydraulic ROVs are the first generation of ROVs, from when there was no modern electric parts and actuator. Hydraulic ROVs are more robust but are heavier and need lots of maintenance. Electric ROVs are smaller in size, lighter, easy to maintain, but its robustness is slightly lower than the hydraulic one. In modern designs Electric ROVs are equal in robustness with Hydraulic one with less maintenance cost, that’s why most of the modern ROVs shifted to the electric one.


Why Lian Innovation Electric ROV?

One of the other main custom products of Lian is its advanced, ruggedized, well market proven Electrical ROV. Lian has developed lots of ROV parts decades ago and nowadays start to develop the first version of its inspection ROV. Lian advanced ROV is a compact high-tech product that in deep knowledge is has been used to make it reliable and very high performance. Some of our electrical ROV specs are as below:

  • Highest trust to weight ratio
  • Very flexible construction to be equipped with any kind of tools
  • Extraordinary reliability in operations