 |
 |
 |
 |
 |
 |
ROVworks News
May 2004: Underwater vision system delivered.
An underwater CCTV
system consisting of two low-light B/W cameras, two LED light
sources, lighting controller, PSU and video interface unit has been
built and commissioned for a client in the nuclear industry, to enable
operators to monitor the underwater suction nozzle of a pumping system.
April 2004: First wireless control and video link delivered to Top Flight Tasking Ltd.
ROVworks have developed a wireless electronics pack for the TFT range of terrestrial ROVs. The pack consists of a 28 channel multiplexer/demultiplexer pair communicating via a UHF radio link, and a microwave video back-link. Software error checking routines and a hardware failsafe system ensure that the ROV operates reliably right to the limit of radio reception, and remains safe in the event of major interference or signal loss. The system enables the ROV to operate without an umbilical over a range of upto 200 metres in open terrain. For operations where radio transmissions are undesirable for safety reasons, or where physical barriers limit range, a lightweight umbilical can be substituted for the radio links, and the system has been designed to be upgradable to fibre-optic should the need arise.
TFT terrestrial ROVs
are used by the military, police, and nuclear decommissioning
contractors for a variety of purposes such as explosive ordnance
disposal, hostage situation monitoring, remote survey and sampling. The
new wireless system will dramatically increase the effectiveness of TFT
ROVs in operations such as building penetration, where umbilical
routing is often a limiting factor.
November 2003: ROVworks deliver video overlay and recording system.
ROVworks have successfully built and installed a video
overlay and recording suite for a nuclear decommissioning project. The
PC based system overlays time, date, captions, and live data from an
FHT6020 radiological probe onto the CCTV picture, and records the
resulting video stream to DVD in real time.
September 2003: Successful trials of balanced line video transmission system.
ROVworks have designed a balanced line transmitter and receiver for use with colour video signals. The system allows PAL or NTSC colour video to be sent upto 300 metres on a twisted pair data cable, with no visible degradation. The transmitter and receiver boards are each approximately 50x30mm and only require a 12 volt supply. It is envisaged that the system will be used in ROV systems to eliminate bulky and fragile coax cables from the umbilical.