Video Digital Image Surveillance System (VDIS)

The Video Digital Image System (VDIS) is an intelligent camera system for safeguards surveillance applications. The VDIS camera system consists of a Digital Camera Module DCM-14, CCD camera, and Lithium-Ion battery, all contained in a standard IAEA camera housing. Because a power supply and monitor are not included with the VDIS camera system, the system must be attached to a server based system such as the Server-Based Digital Image Surveillance System (SDIS), Digital Multi-Channel Optical Surveillance System (DMOS), or Digital Single Channel Optical Surveillance System (DSOS) to supply its power and to control the settings and view of the CCD camera.

NORMAL OPERATION

The VDIS camera system relies on the server-based system for its power. The DCM-14 module utilizes an optional PC-Card to store images and related data. The required capacity of the PC-Card per inspection interval depends on the picture-taking interval set by the user (five seconds to a maximum of 18 hours). The image data compression algorithm implemented into the DCM-14 permits the storage of approximately 60 images per megabyte of PC-Card storage.

The system offers a variety of operational modes, e.g. different parameters can be set for day and night surveillance or for working days and weekends. Another highlight is the delayed start feature. This feature allows the user to preset a date in the future to start the system without a second visit to the facility. In the event of a mains loss, the Lithium-Ion battery guarantees a reliable operation without loss of surveillance.

CCD – CAMERA FEATURES

The CCD camera used in the VDIS is a highly compact, low power camera manufactured by Sony with high sensitivity and an auto iris lens (Sony™ OEM product). A range of auto iris lenses and two different video standards (CCIR and EIA) make this camera very flexible. Because of its compactness and how easily the camera can be installed, the complete camera can be changed to adapt to a specific angle of view rather than changing the lens.