Video surveillance system based on IP has appeared in recent 10 years. In
this period, IP monitoring solution with practical shattered long video
surveillance network around some of the wrong idea.
1, what is the IP video monitoring (IP - Surveillance)?
InternetProtocol Internet protocol (IP is the abbreviation of), it is through
the computer network and Internet communication is the most commonly used when
an agreement. IP video monitoring system (also called network video monitoring
system of digital video information can be), and through the wire or wireless IP
network for transmission. This makes real-time monitoring and video functions
can be extended to all have Internet connection, also make this kind of system
can conveniently and other security system (such as access system, etc) seamless
According to the famous industry analysts J.P.F reeman and analysis of the
company in the United States alone, the installation of cameras have simulation
of more than 2000 million. In the 2000 million, more than 15 million in taichung
was sold in 2002. These digital camera to simulate the best-selling, but
nonetheless, network video camera or from the market come to the fore, become
the most rapid growth of video surveillance products. Direct access to the
network video camera to IP network, and the other with network applications,
users can effectively integrated in remote locations, through the internal
network cameras or Internet in other one or more locations, storage and watch
the video data real-time analysis. According to another well-known industry Co.,
Frost&Sullivan forecast analysis in 2005-2010, traditional CCTV products sales
at an annual rate of only 10%, and market capacity will reach saturation in
2008, Over the network video product sales growth will reach about 40%, even in
2010 are still rising space. It is therefore not foresee, with digital ideas
gradually thorough popular feeling, in the near future, it will replace
IP monitoring solution can be entirely by thenetwork camera, also can add video
camera by simulation, or is also server by a mixture of both. Regardless of
which kind of form, using IP monitoring has been proved to be a kind of industry
are extremely attractive solution. In numerous industry application, this
revolutionary technologies is gradually replacing traditional monitoring system,
in order to reduce the cost and improve the safety. In some applications, it is
also used to create and stimulate began a new market.
Strong extensibility is IP monitoring system is one of the main advantage, this
makes it was confirmed as an attractive technology, not only applicable to
improve and perfect the existing video surveillance and remote monitoring
system, and is suitable for some new industry applications, including:
Education: remote monitoring, school playground, corridor, the hall and the
classroom building, also include some of the monitoring,
Traffic: remote monitoring station, railway, highway, airport, the safety,
Robert: main street bank branches of safety monitoring, control and monitoring
Security and surveillance, government: integrated into the existing application,
usually in the system,
Retail: used for security, and remote monitoring, effective management,
simplified shops to improve work efficiency
Robert: used in industrial production, logistics system monitoring, warehouse
and inventory management, etc
2, why would exist for IP monitoring technology of misunderstanding.
For any kind of a new technology, from its appears to have extensive
application, will experience a market education stage. Some of the new
technology, the original complicated technological and business model, then the
market more entrenched education stage duration will grow more. In the process
of knowledge on some faults and misunderstandings that is commonplace, it was
also in this environment, some new techniques on wrong ideas and confuse will
continually develop and spread.
In fact, IP monitoring technology is not a highly complex technology, but which
belongs to the category of "IP" part of the traditional security concepts, and
into a most traditional security professionals are very strange field - IT
field. From this point, this new technique and its application of the new
environment and inspire fear will lead to the support for the status quo. IP is
formed a monitor direct competition with DVR, this kind of situation has brought
a series of dispute, it is one of a recognized the challenge, this view is
simulated with DVR technology video cameras monitoring system of the ultimate
solution, so is the best video monitoring technology. Careful analysis, and it
is easy to distinguish conclusion: first of all, current security industry from
the manufacturer to engineering, system integrators, to end users and their
institutions, all have known DVR and simulation technology, and for the camera
into money, of course they are happy to see DVR become market dominant products
to consolidate their vested interests. Secondly, the traditional security
industry, and the inherent sealing technology, a private brand solutions to
market within the prevalence of further against the "rumour" IP monitoring. In
sharp contrast, IP monitoring solution integration from different suppliers of
the best product and service, it is the result of end user's maximum profit, but
the result with the current market environment and market expectations.
So far, we have learned about why the market has many misunderstandings in IP
monitoring, and the preliminary discussion on the part of facts, IP monitoring
in some markets next we will be on the wrong idea widely circulated to do
IP video monitoring, about 10 misunderstanding
At present, there are many market on IP video monitoring technology of
misunderstanding, here, we chose one of the 10 most common, and put them into
two categories: unskilled and technology. We will firstly analyzes the
non-technical related misunderstanding, and then further discusses those
technologies related topics.
Misconception # 1: DVR is the latest and most powerful of the CCTV security
Truth: not only someone think digital hard disk video recorder (DVR) is the
latest and greatest technology, but also people mistakenly DVR is fully digital
and network technology, and actually, it isn't.
With the traditional cassette VCR (VCR), there are many advantages in DVR
indeed, for example: without changing tape, consistent and quick search function
image quality. But you still can't get away from the complicated analog video
cables, they will reduce the image quality and increase the cost of the whole
system. And not only possess IP monitor all have the advantage of DVR, but also
has more advantages in DVR not, for example:
Scalability: IP monitoring system, no similar to that in every 16 DVR to expand
the scale of road system, user can use the limit of time only a way from the
system will be expanded to include a camera containing thousands of cameras. At
the same time, it also enables users to freely choose any camera and frame rate,
without any time or frame on the speed limit.
More economic efficient infrastructure, in many cases, the most original
equipment users have through the IP network connection, thus building IP
monitoring system without additional cabling work (cabling cost is usually CCTV
system is one of the main construction cost. This kind of circumstance, the user
data, video, audio, and other information will be the same network transmission
and management through the system, thus the management work becomes more
But the remote access: user can through wired and wireless network in the world,
the safety of any one corner of the visit and control all the real-time video
information, whether video recording down or has the video data.
Intelligent network video camera: built-in series intelligent function,
including dynamic detection, incident handling, sensor input and output relays,
date and time etc, these functions can be made according to the requirement of
intelligent surveillance cameras, which can make decisions at the right time to
correct the alarm information sent to correct recipient, and may, in accordance
with specified frame rate and resolution of the time specified in the video
information will be sent to the specified user.
Lower system construction cost: seeking proof, IP video monitoring system for
many monitoring project is a more cost-effective. IP monitoring solution can use
open and standardization of the network, server and storage devices, it allows
users to make the suppliers from more choices, and more cost-effective solution
DVR most users subjected to a single or a handful of suppliers. In addition to
the hardware selection factors, IP monitoring system has lower installation and
maintenance cost and higher performance advantage, all this clearly shows the IP
monitoring system for the user to save considerable construction expenditure.
We can see that, like most people DVR not imagine that a final solution, but
in the process of development of CCTV technology is one of the milestone. After
the market further careful evaluation, find those who actually represents DVR
obsolete, "black" type of solutions, and IP monitoring is soon proved to be
superior to an update and DVR has more advantages of technology. In fact, IP
monitoring system with DVR exists between the numerous difference, but the
present market is just realize this.
Misconception # 2: IP technology is a mature technology. If it is more
advantageous, why security solutions suppliers can't achieve more related sales?
Truth: it is a misunderstanding that has been reached, the problems in the
greater extent with the security market is related to the structure and buying
habits, and not with IP monitoring system performance and reliability.
IP monitoring is a relatively new technology, and many existing, powerful
security companies are a direct competition with DVR solutions, they hope to
their existing facing DVR solutions for protection is a very natural thing. In
addition, for any kind of new technology and new thinking, to replace the
original thinking mode and behavior patterns, must first in integrators,
industry consultancy and other related industries influential institutions of
constructing the relevant background and the necessary infrastructure, the
preparation work requires some time to finish. Few people will remember that
prevail in the typewriter, we had thought that machine work for us for word
processing has completely enough, don't need those elves odd word processing
software. Time is too long? So please consider again those old card type VCR
(VCR), whether you are in for a long time it for now popular DVD player? Even
you still in use it? Obviously, the old and new technology of alternating is
needed some time to finish.
The truth is, behind the misunderstood by IP monitoring technology project
quantity in the rapid growth in IP monitoring, system integrators and
distributors in increasing. Before long, the security market will realize the
superiority of monitoring technology IP, IP monitoring system will promote the
rapid, also can have more infrastructure to support.
If you think the truth is not very persuasive, so let's look at some of the
industry's giant treat IP monitoring attitude: IBM has entered the network
security market, Cisco and Proxim also is full of IP video monitor market of
guidance and education. Thus, I believe we no longer need more arguments.
Misconception # 3: IP monitoring solution can meet the practical application
software security requirements.
Truth: the scale of the system, the higher the required performance, IP moniting
solutions of competitive advantage is stronger.
The IP mentioned above summarizes the advantages of monitoring system,
extensibility is widely considered the most prominent high-end clients of all of
the advantages. Contains more than 200 to 300 Axis system for the cameras are
some common project, some systems containing thousands of network video even. In
these systems, some are used in some degree of safety requirements of very high
application place, such as the international airport and prisons, etc. So it is
easy to be misunderstood, seeking clarification proof IP monitoring system for
enterprise-level safety can fully. Actually, we've seen some large government
and video surveillance system application designated airport will IP monitoring
solution as the preferred solution, but this phenomenon in one or two years ago
has never seen.
Misconception # 4: network video image quality image quality good. No simulation
Truth: high performance networks with high-end camera used analog camera same
quality image sensor (CCD) and optical components. In addition, by using video
server can be simulated cameras or professional installation of simulation has
been integrated into the IP camera convenient monitoring system. In comparison
with analog video camera, network, must pay attention to the network video
camera here refers to those used in video monitoring of professional level,
rather than those used in products, video cameras, chat with the camera low-end
function complete network cameras are not comparable.
In the near future, network video monitoring and IP technology will generally
support million pixels resolution, which can provide super image quality. And
will always be subject to analog camera NTSC/PAL standard, thus making the
highest resolution is limited in about 40 million pixels.
Misconception # 5: network than analog video camera high cost, thus making the
IP monitoring system of the construction cost is very expensive.
Truth: network camera price than the performance is high, the price of analog
camera is because it integrates than analog camera more advanced features, such
as information digitization, image compression and other intelligent
characteristics, etc. If the overall cost of system hardware (including the
camera, cable and video store, etc), you will find IP monitoring system based on
the hardware cost and usually DVR monitoring system, hardware cost again
considering system installation cost, so IP monitoring system is obvious
advantage, because building based on IP infrastructures than the cost of
building based on coaxial cable infrastructures a lot less. In addition, if
needed, PTZ control simulation system must also conduct additional control
circuit, and IP monitoring system the extra expenses. Ethernet power supply
(concepts behind PoE, PoweroverEthernet) technology is IP monitoring system of
another can effectively save construction cost advantages, this technology makes
network cameras can play received through the same power and data, and work for
the user can save the cost of equipment powered, and can and wiring
uninterruptible power supply (UPS), further improve the reliability of the
Misunderstandings # 6: if has installed a lot of simulation, the user can't
again video monitoring technology, using IP use only DVR.
Truth: perhaps DVR suppliers very much hope that this user, but the video server
(VideoServer) technology is a misunderstanding on it were able to vigorously.
Leading IP monitor suppliers' can provide users with mature video server
products, and its cost is in reasonable range. Video server can be simulated
video signals into digital network transmission through video camera, which will
be transformed into a computer simulation with the basic function of network
video camera. Most current IP monitoring system is shirt-sleeve the video
networked servers via the simulation and the real meaning of video camera,
existing network simulation system and equipment for users will adopt advanced
IP monitoring technology bring any obstacles.
So far, we have been clarified some often heard about IP monitoring system of
misunderstanding, they are related to the topic. Non-technical Next, let us to
those technologies related to do a thorough analysis of the misunderstanding.
Misconception # 7: through all these video data transmission network will cause
overload, so this technology network is actually did not.
Truth: a single network camera usually just 0.2 to occupy 2Mbps bandwidth,
ZhanYongLiang depends on the bandwidth of the actual image compression levels,
the image size and frame rate. If only a few sets, then existing network cameras
have office network 100M video data transmission completely satisfy the
requirements. For video cameras and contained more network server system, we
suggest that the user to open special network video data. Like the railway
transport, once the existing congestion, so just appear railway build some new
tracks. For enterprise applications, its core network are usually can achieve in
the current capacity, gigabit switches and routers, under the support of users
can easily be network bandwidth resources, so as to retain video applications
for bandwidth resources. In addition, still can use some special configuration,
to ensure network cameras in integrated into the enterprise network when not
occupy excessive bandwidth resources.
On the other hand, network video camera itself is an intelligent, it may,
according to the different time, events or through the network to send to
determine that the use of video frames and resolution. Therefore in most cases,
the camera will only 10% of the time by sending the worth of video information
records and archives, and the rest of the time, no 90% of any data through the
network for transmission.
Misconception # 8: through the IP network video transmission important
information is not safe.
Truth: although the Internet is mainly used to transfer some public information,
but only by the correct network security measures (such as firewalls, VPN and
password protection, etc.), it can also be used for some security requirements
of high sensitivity. As is known to all, many Banks and financial institutions
are often through the Internet in the global range of financial services, so for
safety requirements relatively low video surveillance applications, the Internet
is also can become a reliable bearing media. And the corresponding simulation is
unable to use any safety monitoring system authentication mechanism, encryption,
or anyone could easily get DaXian through the way of video information
transmission lines, even can fake video error messages to the monitoring center
monitor video monitoring system, thus completely failure (as many movie
mythology). But this kind of situation in effective safety measures adopted in
the IP monitoring system is not possible.
Misconception # 9: IP monitoring technology, high reliability, no other
technology, for example, in the network, the system will be paralyzed cannot
continue to work.
Truth: early in the 1960s, IP network infrastructures were first developed, how
to ensure the redundancy network has been building IP network as the primary
factors must be considered. The IP network technology development today, network
of transmission lines, application servers, storage equipment and switching and
routing device can configure spare resources, in the main link or main equipment
malfunction, standby equipment can still maintain the link and the normal
operation of the system. Based on IP network system, a storage device can be
deployed in remote locations, the server can use safety of power supply system,
can alternate using support hot pull the plug drives, since the recovery memory
RAID and various measures to double network to ensure reliability. Although the
network system for small, may not be adopted above all safety measures, but
based on the quality of the components IT anyway solutions than traditional CCTV
solution is more reliable and DVR. In addition, as a result of the standard of
server and network equipment for IP monitoring system fault equipment needed
replacement cost and time will be closed DVR system is much lower.
Misconception # 10: IP monitoring is still at least 5 years universal time.
Truth: it is undoubtedly one of the biggest misunderstanding! Axis since 1996
the world's first since the camera, network in the world has already sold more
than 50 million of these so-called "future" products on the market, at the same
time, the monitoring system for IP and increasing demand. Whether from the
overall cost, the overall system performance, reliability, or in other aspects
of standard to measure, IP monitoring system has been proved mature solutions
belong to now. With IP monitoring technology improvement and popularization, IP
monitoring system in the future will also become the security market forces.