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Why DVR is better than VHS?
The importance of a good recording system is apparent to the end-user
after a major event occurs. The failure of a tape-based system is
usually discovered when a security incident is reviewed, for example if
the image quality does not allow for a clear identification or you
discover that the system has not recorded at all!
Previous method for recording CC-TV on tape
with tape-recording equipment is an analog type. Therefore, it is very
inconvenient to change the tapes frequently and it lowers the quality of
image.
However, a Digital Video Recorder or DVR, digitally records the video
image so it provides clear image like a picture. It also has a function
to record continuously so you don't have to worry about the frequent
change of tapes. DVR, therefore, is a video recording surveillance
system for the next generation and it is growing very rapidly.
DVRs offer advantages traditional
tape-based time-lapse VCRs cannot. DVRs allow live remote viewing and
playback of recorded surveillance video via any Local Area Network (LAN)
or the Web. And there's no tape to catalog and store. The ability of
DVR-based systems to record and play back events at the same time,
rather than having to stop a standard tape and rewind it when searching
for an incident, is also an advantage.
What is the cost effective difference?
DVRs are more expensive than VCRs. However, the DVR prices have fallen
considerably over the last year Already, low-end DVRs and high-end VCRs
are in similar price ranges, and most manufacturers have stopped
introducing new VCR models. Despite the increased cost, we recommend
CCTV system buyers purchase a DVR whenever possible because tape based
technology is on the way out and soon will not be supported by
manufacturers – supplies and replacement parts will be harder and harder
to acquire.
What features do DVRs offer?
DVRs offer so many advantages over VCRs that they have rapidly taken
over as the surveillance monitoring/recording solution of choice:
Ease of locating events - Instead of fast-forwarding through hours of
tape, DVRs can instantly retrieve images from any specific time or date,
or automatically skip to the point on a recording when something
changed.
Storage quality - Like all tapes, video
cassettes start deteriorating almost immediately once you record on them
- and the problem gets worse every time you reuse them. DVR recordings
have no degradation at all since they are stored onto a hard drive.
Multitasking - While analog VCRs can either record or play, most DVRs
can do both at the same time, letting you review images while still
recording.
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Always be at ease knowing
that your cameras video is available onsite right from your DVR Server and
ready to be securely viewed.
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Link multiple locations
(i.e. stores, banks, offices) to a centrally located recording and monitoring
network.
Our engineers work with a
certified installer to assure that your system is designed correctly and
implemented according to your specific needs. Each Video Server is either
custom built or feature systems by Dell, Compaq, HP and IBM. All products
are tested
with security cameras attached. Upon delivery, the security camera system is
ready to work right out of the box! |
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Advanced Micro Services works with each customer to design
an affordable Server-Based DVR - Digital Video Recording System. Each systems includes security cameras
and optional Remote Viewing features. Whether you
choose to monitor your system via your internal
network or across the internet AMS can deliver a solid solution.
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The digital
video system that will work best for your application will depend on 3 factors:
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The number of
cameras you require
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The
frames per second that you need
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Whether
you desire remote viewing
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"The advantages of DVR systems
are quickly being realized by a variety of businesses and industries. DVR
systems eliminate the hassles associated with analog CCTV Systems of having
to change videotapes frequently."
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