Radiant, Inc.
3
Video Processor
The heart of all DVMD products is the Video Processor. The Video Processor contains an
embedded Digital Signal Processor (DSP) that executes our proprietary Digital Video Motion
Detector algorithm. The DVMD program, user settings, and masked areas are saved in the
onboard flash memory. The module requires ½ watt of power at +3.3V and video input. It
produces video output with overlay and alarm output.
The user may customize the Video Processor for site specific operating environments by means
of a serial connection. The serial connection is to a PC that is executing the Manager.exe
program. The Manager program brings up a window with a graphical user interface (GUI). The
GUI allows the user to modify the performance of the DVMD
by changing a variety of settings.
The Video Processor processes the incoming video with internal processing including DC
restoration (clamping), automatic gain control (AGC), and filtering. It generates an overlay for the
time, date, camera number, address, and target outlines and provides a buffered 1Vpp video
output into a 75 ohm load.
The Video Processor is packaged in an encapsulated aluminum extrusion with a 20-pin DIN
connector. The connector and two 4:40 screws are used to mount the Video Processor as a
replaceable module. This design allows a wide variety of packaging.
The DVMD1 is a single channel product. The DVMD16 provides 16 channels. Users can easily
design custom packaging to house the Video Processor.
All product packages must provide power for the Video Processor in addition to interface logic to
the outside world and ALARM relays. Any serial connection scheme can be used including
RS232, RS485 or RS422. The packaging must contain the necessary serial interface chips and
connectors
.
Figure 1 – 3.3V Video Processor
