| Digital video recording or its acronym DVR is the
lastest surveillance technology that provides full digital
recording, remote surveillance access, remote device controls and
many more. It is a computerized surveillance system that combines
all the features of a traditional videotape system by integrating a
color quad processor, multiplexer, motion sensors, cctv monitor,
pand & tilts control, time lapse recorder and accessories into one
whole unit.
The old fashion videotape surveillance system in the past need
ongoing effort to work properly. Here is where DVR comes in. DVR
system will run automatically and by itself without any assistance.
Forget your videotapes forever! About picture quality, the quality
on videotape is poor because tape systems share four or more
pictures in one video frame. The quality on videotape also degrades
each time it's used due to head wear, tape stretch, and
decomposition of the videotape coating. This means that videotape
reused too many times. Contrary, DVR uses one picture per video
frame, and all cameras can be viewed together with superior picture
quality.
Meanwhile, locating footage on tape can also be time-consuming.
Finding the image for printing by fast forwarding and reversing the
control buttons requires a stroke of luck. Most probably, the
printed image will come out blurry, unidentifiable and fuzzy. On the
other hand, DVR system uses a calendar-assisted search tool that
allows fast and efficient searching by day, date and time. DVR
images are stored on the computer's hard drive rather than on
videotape This preserves the picture quality as well as allows fast
data retrieval. Locating requested video footage on DVR can be done
in seconds. It can be saved as a JPG, or AVI file.
Features 1. Scheduled video recording by all
cameras or selected cameras set to activate upon motion detection.
User may be able to select specific areas of coverage that they wish
to be recorded. 2. Software incorporates a user friendly and easy to
use on screen menu. 3. All images are stamped with time and date. 4.
Advanced video storage system that organizes the files and displays
archived of video footage with the calendar assisted search tool.
Playback and review can be done by selecting the day or time. It can
be saved as JPG images. 5. NTSC or PAL compatibility. 6. Additional
display and monitoring abilities such as composite video or back up
video to a time-lapse recorder. 7. Remore surveillance monitoring
and recording through network or dial-up access. Remote users able
to access monitor, record or playback captured video after password
authorization. 8. J-PEG and M-PEG 4 video compression. 9. Mutilple
camera switching methods. 10. Access control where open and close
gates or toggle lights on/off remotely. 11. Pan/ Tilt/ Zoom
functions supported by PTZ cameras.
What's DVR has to
offer?
Remote Surveillance DVR offers
remote surveillance access. The securit cameras can be viewed from
any remote computer from any part of the world. You can monitor your
store, premises, house anywhere. Supervise and manage your employess
while away from office. Monitor your business activity at home. DVR
computer can be accessed by a cable modem, phone line, DSL,T1,
satellite and wireless connection LAN and WAN.
DVR system is recording every single
thing while you are logged in and viewing with your security
cameras. Ability to record to local hard drive while remote
connected is also available. Frames and recorded images can be
printed from DRV server or remote computer.
Live Streaming Video DVR
systems also offer live streaming video. The system can only
download one image at a time, one frame per second video. DVR
systems operate at various rate ranging from 60, 120 to 480 frames
per second. This will produces live video footage that can be
watched in real time.
Data Recording Recorded video
can be stored for up to 3 months with motion detection recording and
scalable camera zone coverage. Scalable camera some coverage allows
picture of unwanted areas to be blocked.
Motion Detection Motion
Detection are recorded to the DRV system as the video frame changes.
Video recording will be activated when people walking or moving.
With motion detection, it save hard drive space. It is a
software-based motion detection system and external motion sensors
are not required.
Independent Camera Programming Security camera and whatever it records
will be directly controlled. DVR enable users to decide which
cameras record and time to be recorded. Timed scheduling function is
used to set specific camera to record at certain time, and others to
record continuously. Resolution, motion detection type, frame rate,
contrast and brightness can be set according to each camera needs.
Remote Device Controls Using
optional control unit, users can open and close gates or toggle
lights or switches on and off remotely. Watch security cameras and
control other devices from another remote location.
Pan / Tilt / Zoom Optional
pan, zoon and tilt for supported cameras can be used with this
system. Move the camera from side to side, up and down and zoon it
from any part of the world. However, this feature required special "PTZ"
cameras.
Simple to Use DVR systems are
simple to use. Even the non-experienced computer users will find it
easy to use the system. It's so simple. Just plug in the security
cameras and click the record button. That's it. Further information
can be referred in operation manual.
High Speed Internet Access High Speed DSL or fast internet access is greatly recommended for
remote viewing of security cameras. Remote access will work with 56k
modem but it also depends on size of phone lines. Video images might
be slower due to the size of common phone lines. That's the
difference between DSL and 56k modem access. Bigger size means
faster data transaction and that also means faster video images
loading time.
DVR Functions Screen Monitoring Lots of camera views are
shown on the screen at the same time with the choice of cameras. By
clicking the mouse, the display patter can be changed from small to
full screen.
Camera Adjustment It increase the storage
capacity by adjusting the compression ratio and recording speed for
each camera's requirements.
Motion Detection Motion Detection is a software based. No external sensors required
and recording begins when the camera detects any motion. Timing,
motion and image area are adjustable.
System Security File system stores the video using a calendar based search tool.
Video playback is restricted to authorized password users and can
make changes remotely. The main system menu is a password protected
to prevent unauthorized changes on server.
Image Searching Recorded video can be
browsed according to date, time and second.
Time-based Recording Every camera's recoding
can be initiated on a daily schedule to respond to the need for
constant recording, motion detection, alarm or sensor inputs as well
as passive monitoring periods.
Playback and Image Retrieval All recording for every
camera by day, hour and minute is graphically displayed in the
screen. Just click the mouse to play, rewind, advance, print, freeze
or copy.
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