Advanced Security Surveillance
Since the introduction of DVR surveillance recorder in the early
2000s, applications of DVR system had increased with
each passing year. The technology continued to develop,
distribute and improve. Nowadays,
enterprises, casinos, large retail shops, freight centers,
franchises and most government buildings worldwide use DVR
surveillance systems to deter crime and aid in criminal
The technology is developed on
computer system, namely Digital Video Recorder DVR, all the captured
images, video and audio are stored in computer hardisk, we call it -
"Storage Buffer". This advantage provide much more storage space
than VHS so that one system built-in "Storage Buffer" provides
adequate storage capacity up to one month.
As all the records are
stored at "Storage Buffer" temporarily, Day 1 records
erased automatically for future replacements - Day 31. At the
same time, user can use the
CD-Recorder in VisionNet Network DVR system to burn important data/record to CDR or CDRW for
permanent storage during the month. And as each day record will
stay in the DVR system up to one month, that's why we call it
"Buffer". System user don't need to worry about changing or
forgetting to change tapes in time-lapse recorders. Any old unwanted
images can be erased automatically. Using Compact disc technology,
records preservation and duplication become more easier and cheaper,
and yet quality is superior than tapes.
1. Record 24-hour a day, complete
coverage of every days, every weeks.
2. Storage Buffer provides up one
month storage capacity.
3. Auto recycling and erasing
records from the beginning if capacity is used up.
4. Remote clients can access into
Network DVR for records retrieval, replaying,
changing internal settings of the DVR.
maintenance-free security recording
VisionNet typical Network DVR
system supports 3 different recording modes for user to choose:
24-hour a day Continuous Recording
As the storage capacity is much larger than before, system don't
need user to change tapes frequently, don't need them to keep so
many tapes for record storage. therefore, maintenance-free 24-hour a
day recording is possible. System operator don't need to erase,
check, store records because all of them are to be done
System user can define the recording time period on each day or each
week. For instance, ABC Book store set the Network DVR to record
only from morning 9:00 to night 10:00 from Monday to Friday, but on
Saturday, they set it to record from morning 6:00 to night 11:00.
Motion Detection Recording
As VisonNet Video Camera supports Motion Detection. User can
manipulate each camera for detection area and motion sensitivity.
When Motion Detection is triggered, recording starts. This function
is particularly useful during night time.
Network surveillance system is network based, this advanced
functionality makes it highly suited to the mission critical
applications involved in security surveillance. Armed with the above
revolutionary technology, protection of people, property, assets
from accident and crime have been greatly enhanced ever than before.
Even more, with greatly compatibility with traditional CCTV Cameras,
DVR is a very attractive option for those companies wanted to renew
their currently using CCTV surveillance system.
False alarms present a big problem to security systems. Video
Camera and Network DVR enable alarms to be checked from anywhere
before action is taken. When motion is triggered or suspected event
happened, a security guard who as been alerted to a break-in, can
get a view of the room or building where the break-in has occurred
by checking video images immediately in the Network DVR [Network DVR
supports Records Playback without affecting normal recording] or
other online computer. This way, he knows whether or not it is safe
to enter, or any actions have to be taken, such as calling police.
Remote Monitoring and Digital Transmission
As VisionNet Network DVR systems are based on
existing computer network, users can monitor anything remotely and
with mobile at any place by computer notebook, or home desktops
through Internet, WAN/LAN, or even telephone lines, so that
authorized viewer can gather information at all key points in
real-time. This makes it ideal for monitoring working equipment,
scientific experiments, traffic, people, or any places both locally
or at a distance. It helps to keep store owners better informed,
prevent theft and makes store management easier and more efficient.
Such a system is particularly appreciated as knowing that their
property can be observed remotely increases peace of mind.
By the help of digital transmission,
all the captured images, records stored in Network DVR distribute
over the Internet, user can monitor and access from anywhere at any
time. In some cases, particularly where network bandwidth is
limited, it may be desirable to store video images locally onto a
network DVR, and access them by downloading.
All the video captured can also be used to
broadcast over the Internet, providing viewer or audience with
real-time information about sporting competitions, business
conference, weather or traffic conditions, or used as a business
tool to show promoting products or services to customers.
This function is particularly useful for business promoting
event, or building company homepage to introduce products features
to customers. The Network DVR automatically transmit every live
images, with every hour, minute or even second to remote user
through computer network or Internet.
Video Camera Selection Guide - White Paper