Video surveillance is now the concept of both supply and demand sides need to focus
Source：本站Click：3500Time：2016-05-05 14:59:09【SmallInBig】
Video surveillance is now the concept of both supply and demand sides need to focus
According
to his recent 10 years on the global security market data statistics,
analysis and research findings, and video surveillance products market
every year to double-digit growth rate increasing. Without exception,
2014, the global market growth forecast will be more than 12%. Video
surveillance can be according to the product classification, geographic
area and the terminal user types divided different market. And the
market growth rate to above average. From the point of view of the
global video surveillance product classification, network camera market
is still the fastest growing product type market. Facing the rapid
growth of the development of the market, consumers in the field of video
surveillance network still exist some cognitive errors.
Error 1: the image of the network video is not as clear as the simulation
Fact:
camera network real-time monitoring and video playback is exactly the
same, of course, screen after a digital compression processing, effect
than that before the treatment of analog signal and some slight loss.
And traditional hard disk recorders, monitoring and playback is
inconsistent, monitoring the signal in the through the, of course, the
effect is very good, and playback effect has also been compressed, the
effect is good or bad depends on different manufacturers use compression
techniques.
Moreover, with the development of technology, network
cameras and IP monitoring technology can reach a million pixels
resolution, while the analog camera due to the limitations of its
technology, up to a maximum of 40 thousand pixels resolution.
Misunderstanding 2: network camera is more expensive than analog camera, IP monitor is too expensive
The
fact that single price, network camera is more expensive than analog
camera. But you should also see that it is the function of analog camera
can not be compared, the digitization of the analog signal, image
compression and transmission and intelligent control function. Compared
with the cost of a monitoring system based on DVR architecture, IP
monitoring than it should cheaper. For the simulation system, and not
you buy a DVR, you have to buy Everything will be fine., many related
equipment such as a large number of analog video cable. Also, if you
want to achieve PTZ control, also need also laying many video cables,
and the realization of PTZ function in IP monitoring in still it is
through the network line, does not need additional cable.
Misunderstanding 3: now I installed the simulation monitoring system, not to use the IP monitoring
Fact:
perhaps DVR providers want people to believe this, but in fact, the
development of video server technology has bridged the gap between
simulation monitoring and digital monitoring. Only the seemingly
impassable analog camera received a video server, you can put the video
camera to collect the analog signal is converted into digital signal
after compression in the network transmission. That is to say, the video
server has let analog camera network camera function. In fact, for most
of the original have simulation monitoring system for users, they tend
to choose this way to build IP own monitoring system, or hybrid IP
network cameras and video monitoring system servers. In short, you
simulate the existing monitoring system will not stop you to IP
monitoring pace.
Misunderstanding 4: if all the video information is
transmitted through network, it would not lead to network congestion and
even collapse
Fact: if only several monitoring points, then the
existing fast Ethernet (100 Mbit) can meet the demand of transmission
bandwidth. The user can according to the compression ratio and frame
rate to adjust bandwidth. If multiple monitoring points, we recommend
that you best laid a dedicated network lines. This is quite similar with
the rail traffic, once existing track lines become congested, you have
to create some rail lines to relieve the tension of the line. Moreover,
for large-scale enterprise applications, local network is usually
Gigabit LAN, switches and routers use, can divide the network into
different segments.
And function of intelligent network camera can
according to the trigger event, dynamic detection and preset time
conditions to choose whether or not to send video. And the need for
transmission of video information is not too much, almost only 10% of
the time required to transmit information, 90% of the time are without
any video information transmission on the network.
Misunderstanding 5: in the network transmission of video is not safe enough
Facts:
Although the network's original purpose is to make enough information
of the public, however, as long as the use of correct security means,
such as firewall, VPN or password protection technology. It can also be
used to transfer some highly sensitive information.
In fact, many
banks and financial institutions are using the network to deal with some
of the world's financial things. There is no doubt, for security
surveillance and remote monitoring field. It must be a reliable medium.
Monitoring and digital compared, simulated monitoring of confidentiality
poor many, it is almost no any confidentiality. Anyone can see the
simulation system of these so-called safety information and even
tampered with these information, resulting in great loss. And monitoring
of IP will not occur on an absolute such things.
Misunderstanding 6: if there is a network congestion or even a
sudden break, IP monitor instantly collapsed, so that it is not reliable
The
fact that IP network architecture in the development of 1960s and early
70's, can provide redundancy backup function has been a huge demand.
Development
to today, all kinds of storage servers, network switches, and optional
routers have provided the simultaneous backup function. Storage server
function is to ensure offline convenient call data, backup power supply
heat exchange RAID disk, fault tolerant storage and dual NIC can help
achieve redundancy backup function. Although a small network structure
may won't need all these complex security measures, choose a high
quality components of it is anyway than traditional CCTV solution
program the VCR or DVR is much more reliable, and problems in emergency
treatment to than DVR to solve scheme to save much more.
Mistake 7:IP monitoring is good, but it seems that we still have some distance away from us, at least 5 years
Fact:
think now is not to application IP monitor era seems to be the crux of
all the problems! Let us with concrete data to explain. Since 1996
launched the first network camera, has been successfully sold and
installed 20 million units in the network camera and the number is by
rapid rise, fully shows that interest to the monitoring of IP is also
increasing. Because people have come to realize that, both from the
point of view of the price or reliability or any other aspect, IP
surveillance has been shown to be applicable both in the present it with
a view to future mature solutions.
The above seven points is now
easy to walk into the consumer misunderstanding. In this compelling
video surveillance application era, whether consumers or suppliers, the
right to convey information must pay attention to it.
Relevant information
