DATA ON SCREEN INTERFACE, model 2100
The
A2100 interface intercepts a camera's video signal and overlays
data on it. The purpose is (usually) to record latitude,
longitude and other useful data, for later analysis, or to be
able to return to places of interest.
The interface is connected to a GPS or nav-aid to receive the basic data. It is a simple and reliable device with no user controls, although options exist to personalise it for the user. Operation is entirely automatic. NO PC IS INVOLVED!
Data appears (typically) at the bottom or top of the screen. The picture above shows UTC time, date, position and DGPS (2) status. The pictures here have been captured by PC from VHS cassette and show Bob Williams working in rather murky water.
The data is permanently overlaid on the video. Replay can be from any VCR: the interface is not needed on replay.
APPLICATIONS INCLUDE
 | Underwater camera data overlay |
| Supertanker bow view camera overlaid with bow speed (SMIDS) |
| Survey by ROV. Depth and heading overlay |
| Surface activity of support vessels around rigs. |
| Security and monitoring deck operations. |
| Information displays for passenger ships, research vessels. |
| Video from aircraft. Helideck monitoring recording wind. |
| Marine pollution incidents. Record oil slicks and location. |
| Record of rescue operations. Coast guard, Lifeboats. |
| Covert and overt activities. Customs, police, armed forces. |
INPUT:
| NMEA 0183 relevant sentences. Lift-off terminal block. |
INPUT:
| Composite video. Phono plug connection. |
| System PAL Approx 1v p-p. |
OUTPUT:
| Composite video overlayed with text. Phono plug. |
DISPLAY:
| Brilliant white video text. |
| Height approx 0.05 height of screen. |
| 12 lines available at bottom of screen. 24 characters per line. (standard config.) |
| It is possible to have text 12 lines starting at top to suit yourself. |
| Basic text options provided. If you require a display option not available we will probably write it for you free of charge. |
| If power is removed the video signal passes through undisturbed. |
POWER:
| 8 to 30 v DC at 50 mA. Switched, fused. |
HOUSING:
| 120 x 122 x 55 mm white abs box. |
OPTIONS:
| 16 position jumpers. Specifies the text displayed on screen. |
| Option 0 is a demonstration mode. |
| ASSOCIATED EQUIPMENT |
| NMEA 0183 Video adapter records and plays back raw NMEA data via the VCR. NMEA 0183 VCR Adapter. |
A ship entering Swansea docks. Spot the deliberate error!
| ADITEL
MARINE ELECTRONICS UK |
|
| Tel / fax | 44 (0) 1873 840405 |
| Fax: | 44 (0) 1873 840106 |
| AMI | 44 (0) 2380 480450 |
| E-mail: | Andrew Fairgrieve |
