Tags: IP monitoring analog monitoring
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The IP surveillance solution has changed some of the misconceptions that have long been around network video surveillance.
What does IP monitoring mean?
IP is one of the most commonly used protocols for communicating over a computer network. The IP surveillance solution is to transmit video information in digital form over a wired or wireless IP network. Video monitoring and recording is guaranteed as long as the network is reachable, and this monitoring can be combined with many other types of systems.
According to industry analysts JP Freeman and Co., Inc., there are 20 million analog cameras installed in the United States alone. Of the 20 million units, more than 15 million were sold in 2002. In the context of the sales of analog cameras, it is a new generation of products that are gradually emerging and developing rapidly. Looking at its development momentum, it is not difficult to foresee its glorious prospects; as the concept of digitization gradually deepens into the hearts of the people, it will definitely replace analog products in the near future.
The network camera is a new generation of products directly connected to the IP network, enabling users to view and store video on the remote network and analyze the collected image information to take corresponding measures.
Whether it's a solution consisting of a network camera alone, a solution consisting of an analog camera plus a video server, or a hybrid solution, IP surveillance has proven to be an attractive solution.
What is the cause of misunderstanding in IP monitoring?
The emergence of any new technology and the subsequent promotion will have a period of market incompatibility, also known as the market education period. The more complex the new technology is or the greater the distance from the existing technology, the longer the period of education in this market will be. In this stage of market adaptation, it is necessary to adopt a step-by-step approach to gradually build up the knowledge structure of the defect and make up for the misleading market. Only in this way can some false ideas and some confusion be eliminated.
Myth 1: DVR is the safest and most reliable CCTV monitoring storage device.
Fact: Not only do some people think that digital video recorder (DVR) is the latest and best technology, but some people mistakenly believe that DVR is already a fully digital network technology.
Compared with traditional video tape recorders (VCRs), DVRs do have many advantages, but they still can't get rid of those complicated analog video cables, which will greatly reduce the image quality, and the price of the whole system is quite expensive. And IP surveillance has all the advantages of DVR, and there are more advantages that DVR does not have.
Scalability: IP surveillance does not have the limitations of 16 channels like DVRs, and can be expanded from one to thousands.
More cost-effective infrastructure: Most of the existing equipment is connected by twisted pair, which provides a good preparation for IP monitoring, and you can easily get everything done by simply connecting to the network cable. Because all data, video, sound, and other are transmitted and managed through a network cable.
Remote controllability: All video information, whether in real time or recorded, can be securely obtained from anywhere in the world.
Smart cameras: dynamic monitoring, emergency handling, alarm device input, delayed output, log management, and other built-in features allow cameras to intelligently choose when to send and to whom, even at what frame rate And the resolution can be sent out.
Lower system cost: The IP surveillance system is the most economical option of all current installations. It is based on an open standard network protocol, which makes it stand out from the DVR. Need to store image information? It's just a problem with a hard drive. Its simple installation and simple maintenance are far from the DVR.
DVR is not a final solution, and it seems to be a more appropriate milestone on the way forward for CCTV surveillance technology. With the market's further understanding of DVR, people will gradually realize that DVR is an outdated technology, and the narrowness of its system will gradually make it gradually withdraw from the historical stage, and the aspect of IP surveillance technology superior to DVR will gradually It is recognized by people. These are two very different technologies, and the market has begun to realize this.
Myth 2: The application of IP has not yet fully matured, otherwise it will already be in the market.
Fact: This question is more about the security market structure and user buying habits, regardless of the performance and reliability of the IP surveillance solution.
IP surveillance is a relatively new technology, and it currently has a strong competitor, the DVR. Many people want to keep their existing equipment, which is a common anti-aging mentality, and DVR gives customers the illusion that it does not seem to waste existing investment. We have to say that this is natural. Correspondingly, as a new digital concept, IP technology will take time to instill this concept into system integrators and consulting service providers to gradually overcome the traditional concepts inherent in people's minds. I believe everyone remembers how long the word word processing program replaced the traditional WPS word processing program. It is not a long time. How long does it take for the video tape VCR to be replaced by the latest DVR? It can be seen that the technology gap needs time. To overcome.
In fact, the number of IP surveillance solutions is increasing, and the number of system integrators is growing rapidly. We believe that in the near future, the market will certainly recognize the superiority of IP surveillance. At that time, we will surely see a large number of demands emerge.
You may think that our statement is not convincing enough, so well, just look at these giants such as IBM, Cisco and Proxim have recently entered the field of network monitoring, you may understand the direction of the market.
Myth 3: In larger enterprise applications, IP technology has not yet reached the standard
Fact: The larger the installed project, the higher the user's demand, the more obvious the advantages of IP surveillance. IP surveillance has proven to be a very competitive and very attractive new concept. In fact, among the many advantages of IP monitoring mentioned above, scalability is its greatest advantage, and it is also the most valued point for high-end users. So such a misunderstanding is easy to correct: IP monitoring must be able to meet enterprise-level applications. In fact, we have received more and more government and airport monitoring orders. They agree that IP surveillance is the best architecture. This concept has only changed in just 12 months. This seems to be enough to explain something.
Myth 4: The image of the network video is not as clear as the simulation.
Fact: The real-time monitoring effect of the network camera is exactly the same as the video playback effect. Of course, the picture has undergone digital compression processing, and the effect is slightly less than the analog signal before processing. The traditional DVR, monitoring and playback effects are inconsistent, because the signal is straight through during monitoring, of course, the effect is very good, and the playback effect is also compressed, the effect depends on the compression technology used by different manufacturers.
Moreover, with the development of technology, network cameras and IP surveillance technologies can achieve megapixel resolution, and analog cameras can only achieve a resolution of up to 40,000 pixels due to their technical limitations.
Myth 5: Network cameras are much more expensive than analog cameras, and IP monitoring is too expensive.
Fact: In terms of price alone, web cameras are more expensive than analog cameras. But you should also see that its function is unmatched by analog cameras, digitalization of analog signals, image compression transmission, and intelligent control functions. Compared to all the costs of a DVR-based surveillance system, IP surveillance is cheaper than it. For analog systems, it's not that you buy a DVR, you have to buy a lot of related equipment such as a large number of analog video cables. Moreover, if you want to implement PTZ control, you need to lay a lot of additional video cables, and the implementation of PTZ function in IP monitoring is still through the network cable, and no additional cable is needed.
Myth 6: I am installing an analog monitoring system, I can't use IP monitoring.
Fact: Maybe DVR providers want people to believe this, but in fact, the development of video server technology has bridged the seemingly insurmountable gap between analog surveillance and digital surveillance. Simply connect the analog camera to the video server, and then convert the video signal collected by the analog camera into a digital signal and compress it for transmission on the network. In other words, the video server allows the analog camera to have the function of a network camera. In fact, for most users who already have an analog monitoring system, they are more inclined to choose their own way to build their own IP surveillance system, or a hybrid IP surveillance system consisting of a network camera and a video server. In short, your existing analog monitoring system will never stop you from moving to IP surveillance.
Myth 7: If all the video information is transmitted over the network, it will not cause network congestion or even crash.
Fact: If only a few monitoring points are available, the existing Fast Ethernet (100 Mbit) can meet the bandwidth requirements of the transmission. The user can adjust the bandwidth according to the compression ratio and frame rate. If it is a multiple monitoring point, we recommend that you lay a dedicated network cable. This is quite similar to railway rail transit. Once the existing track line becomes congested, it will have to build some track lines to ease the tension of the line. Moreover, for large enterprise applications, the local network is usually a gigabit LAN, and switches and routers can be used to divide the network into different network segments.
Moreover, the intelligent function of the network camera can select whether to send video according to conditions such as event triggering, dynamic detection and preset time. The video information that needs to be transmitted is not too much, almost 10% of the time needs to transmit information, and 90% of the time there is no video information transmitted on the network.
Myth 8: It is not safe to transmit video on the network.
Fact: While the original purpose of the network was to make the information public enough, it could also be used to transmit highly sensitive information using the right security tools such as firewalls, VPNs or password protection. In fact, many banks and some financial institutions use the Internet to deal with some global financial things. There is no doubt that it must be a reliable medium for security surveillance and remote monitoring. Compared with digital surveillance, the security of analog surveillance is much worse, and it has almost no confidentiality. Anyone can see these so-called security information under the analog system, and even tamper with this information, causing huge losses. IP monitoring will never happen like this.
Myth 9: If there is network congestion or even a sudden break, IP monitoring will instantly collapse, so it is very unreliable.
Fact: The IP network architecture was a huge demand in the 1960s and 1970s when it was able to provide redundant backup capabilities.
Today, various storage servers, network switches, and optional routers have been providing this simultaneous backup feature. The function of the storage server is to ensure convenient data recall after offline. Application backup power, hot swap RAID disk, fault-tolerant storage and dual network cards can help achieve redundant backup. Although a small network structure may not require all of these complex security measures, choosing a high-quality IT component is much more reliable than a VCR or DVR in a traditional CCTV solution, and it is urgent when something goes wrong. Processing is also much more time-consuming than DVR solutions.
Myth #10: IP monitoring is good, but it seems to be some distance away from us, at least 5 years.
Fact: It seems that the era of IP surveillance is not the crux of all problems! Let us explain with specific data. Since the launch of the first network camera in 1996, 200,000 network cameras have been successfully sold and installed, and this number is rapidly rising year by year, fully demonstrating that people's interest in IP surveillance is also increasing. As people gradually discover that IP surveillance has proven to be a mature solution for both the present and the future, whether in terms of price/performance or reliability or any other aspect.
Here, we have unveiled a lot of misunderstandings and misunderstandings around IP surveillance. I hope that people can see that IP surveillance is a mature solution that is highly scalable, efficient and efficient in using existing networks.
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