Saturday, 21 November 2015

China Top 5 Network Camera Manufacturers: Hikvision, Dahua,Sysvideo, Huawei, Xiongmai

Many security products distributor always want to know  Who are China top 5 network camera manufacturers.

In China, with the decline in innovation and technology hardware costs, IP network cameras rapid price decreases, network cameras surpass analog camera has become the mainstream of monitoring market, China has become the world's largest network camera market and production base of network cameras, and many other countries security products distributors and importers also buy products from China network camera manufacturers.

In recent years, market demand for network cameras always showed a rising trend, people on the network camera's performance requirements are also increasing, but now the network camera market is not standardized, there are many large and small manufacturers. Honeywell, Axis, Bosch from abroad, to Hikvision, Dahua and other traditional brands, as well as network cameras and network video recorders OEM professional Sysvideo, as well as home networking network camera based Foscam , and a large number of buy network camera module to carry out traditional analog camera manufacturers, so we have to understand their characteristics when selecting a network camera manufacturers in China, not just the brand and price as the only criteria.

This is China's top 5 network camera manufacturer and featuers:
1. Hikvision, http://www.hikvision.com: the world's largest security company, more expensive, and promote their brand. Around the world have their own exclusive agents.
2. Dahua: http://www.dahuatech.com, technical strength as Hik, integrated security products provider, using its own brand around the world have their own exclusive agents.
3. Sysvideo: http://www.sysvideo.cn, : focus on high-definition network cameras and high-definition network video recorders, only not provide a single product, can also provide video surveillance of the total solution, can also provide customized OEM production services, low MOQ quantity.
4. Huawei Technologies: Huawei video surveillance division, the main provider of high-end products and cameras, strong brand influence.
5.Xiongmai: core team is from the Dahua, the main provider of IP camera module, do not provide the whole, China holds the largest share of network cameras of low-end market.


China network camera market future

Intelligent brings new highlights to improve performance is the key

Network camera manufacturers in China continued innovation for the security surveillance, but also launched a home network camera products for the smart home, these products will meet future market demand broader and become a new growth point.

Overall, the future development of the network camera market in China will focus on several areas: high-resolution, H.265 compression algorithms, network monitoring cloud-based, civilian, feature rich and varied, more standardized, and standardization. Under the premise of improving product quality, aimed at different areas of a comprehensive, multi-faceted development and innovation, on the one hand and timely adjust strategies based on market demand, on the other hand, opening a new era of the Internet industry from the Vision.


China's network camera manufacturers in terms of mastery of core technologies and innovation, or in the possession of the proportion of the domestic market has a very big advantage, compared to Europe and other foreign brands have a strong competitive edge.

How to achieve high-definition intelligent network cameras


To make intelligent network video surveillance system , the most important way is to make the network cameras intelligent. After analyzing surveillance video to identify the front-end intelligent network cameras, you can only have abnormal image transmission to the rear to record and display, which can greatly reduce the width on the network. But how to make the surplus CPU resource of network cameras, intelligent video analysis and recognition which the software embedded algorithm to the network camera, is currently one of the key China network camera manufacturers.

As we all know, get a photoelectric image depends cameras Analog cameras can only transmit one-way video signal, its performance is subject to the technical capacity DVR and operator. But the network camera can transmit full-duplex digital information, and can be effectively integrated with other devices within the system, to enable them to achieve higher levels of performance in a distributed and scalable environment. Network cameras can communicate in parallel with multiple applications, in order to achieve a variety of functions, such as to detect the movement of the screen, or transmitting the video streams of different formats and the like. IP address of the camera with more convenient network, because it does not require additional analog / digital signal conversion, do not need to send the device in the camera-side installation, so the camera's size will become smaller and smaller, and this is easier subtle, security monitoring system is needed.

Network cameras make traditional cameras and computer functions into together, it is not only the video signal is digitized and compressed, also has a network interface. Its video transmission via IP network, and recorded on a standard PC with video management software. Systems consisting of a network camera is a true network video system, it is also a fully digital system, because there is no use of any analog device. Monitoring scenes video signals from a network camera continuously through the IP network, regardless of where the viewer is located, the camera can give the viewer to provide a stable image quality. Therefore, the network camera most suitable for application in such a large city surveillance network security monitoring systems, and to build into intelligent network security monitoring system, the first network camera should enable intelligent. Thus, the monitored video images, after analysis to identify the front-end intelligent network cameras, you can only have abnormal image transmission to the rear to record and display, which can greatly reduce the burden on the network. But as the intelligent software algorithms added all front-end network camera, due to the limited CPU resources of its own, often need to improve the front-end equipment configuration or use a dedicated video analysis equipment together, it would be the size and cost of the device is greatly increased, thus nor is the user required.

Function module HD IP network camera solution compared to conventional cameras, the camera's internal network is to increase the digital processing and digital video compression and network access, forthcoming digitized video signals into compliance with network transport protocols (such as TCP / IP protocol) data stream for transmission to the internet. Thus, a network camera can be viewed as a combination of cameras and a computer. It can capture images directly transmitted over an IP network, allowing authorized users through a standard IP-based network infrastructure, in the local or remote locations to achieve view, store and manage video data, or monitor the camera's built-in microphone collection site sound.

Since the network camera also communication (COM) interface that allows a network camera has to capture and conversion control data. Because through the COM interface can be connected to an external decoder. Therefore, the network took an authorized user of a PC, you can send commands transmitted over the network via the camera COM port to its external decoder, the camera head and lens necessary action. Meanwhile, the COM port can accept data from the front end, and transmitted to the network on either a PC.

The network camera also alarm (ALARMI / O) interface. This alarm signal can be received by the access terminal came various types of alarm sensor switch signal, and encodes, and then into the TCP / IP network, a variety of joint response settings (such as through the application of software for the alarm signal visual and audible alarm and alarm recording, etc.).

Because each network camera has its own IP address, it can be connected directly to the network, and built-in Web server, FTP server, FTP client, Email client, alarm management, programmability, and many other functions. Network cameras without connecting with the PC, it can be run independently, and can be placed in any location with IP network interface. In addition to the video information, the network camera can also go through the same network connection more other functions, and transfer some of the other useful information, such as video motion detection, audio, digital input and output (can be used to achieve the alarm linkage, such as trigger alarm or activate the on-site lighting, etc.), for transmission of serial data or a serial port PTZ device drivers and the like. Network camera image cache, you can save and send video images before and after the alarm.

Thus, IP network camera video source can be obtained at local pretreatment, compression, and for remote transmission and storage over IP networks. An important part of containing video pre-processing, video compression, and IP network video (Video-OverIP) function.
Due to the current IP camera resolution is D1 gradually evolved from the standard definition to HD, and must be a local real-time compression, which can only use hardware compression mode. If you use multi-chip DSP processor, will make the system cost and increase integration and power consumption, while allowing users to not accept; if low-cost single-chip FPGA devices use, performance can not meet the design requirements, but if the use of single high-performance FPGA devices, we can meet the requirements. Because this device is structured with a corresponding series of devices, it can further reduce the cost to 1/10, and 50% lower power consumption.

Composition and implement the principles of intelligent network camera solutions

By foregoing the use of single-chip high-performance Stratix series FPGA devices function module program per HD IP network camera, with an embedded intelligent software algorithms module can be composed of intelligent network cameras. Obviously, six parts of a smart network cameras, that is, from the camera lens, CCD or CMOS imaging device, A / D and preprocessing, intelligent software algorithms module, coding compression module section with a network interface module.

The image pickup lens of the optical image of the scene being monitored to collect and focus them imaged onto a photosensitive surface of a CCD or CMOS imaging device, an electric signal converted video output after A / D conversion and noise removal, image enhancement and other pre-processing, sending embedded intelligent software algorithms into modules. Intelligent software algorithms are the most important part of the intelligent network cameras, the algorithm of the pros and cons, abnormal signal analysis identified whether accurate or not is the camera key practical. When the intelligent network cameras began to enter the monitoring state, the will of the encoded image compression and transmission to the scene to monitor the network control center, and then you only have to identify abnormal signal, only the encoded compressed, the interface to the transmission network through This can greatly save network bandwidth resources.

Because video compression and transmission by post, will lose part of real information and generate some noise signal, then use intelligent software for video compression after analysis and identification process, there will be relatively more leakage alarms and false alarms. The intelligent network camera of this program is no compression of the original image object extraction, it is clear that there is no such problem. And, it is only in the event of exceptional circumstances required under the pre / alarm, only need to be sent to the rear end of the associated video monitoring and recording, but generally only rarely transmitted through the network target data, the target data information The flow rate is less than 1/50 of video traffic, thereby reducing network bandwidth requirements and consumption, reducing the user's investment in the network, while at the same time on the network condition is not good to bring users to use intelligent video network possible monitoring system.

Therefore, the focus intelligent network camera program is a good choice and design of intelligent software algorithms, and then embed DSP or FPGA to form intelligent software module section.

Design principles and elements of intelligent network camera program

Design principles and elements of the intelligent network camera solutions are the following.

Modular design

Here, the modular design, the main function is to make the intelligent modularity. The author believes that speaking in front of that can be embedded in the intelligent network cameras 8 intelligent features, except for the first three basic functions of each camera is required which consists of a module, the rest can be composed separately. This is more flexible and convenient, you can monitor the site according to the actual needs and choose different modules loaded, thereby reducing capital investment, engineering companies are willing to accept. Thus, modular design can not only bring convenience to manufacturers, but also very suitable for practical needs.

Reliability Design

Any product should be subject to reliability design, which requires a reasonable system designed structure, product durability, the system is stable and reliable. Thus, the need for EMC design, to be anti-EMI, lightning and all kinds of interference in order to adapt to harsh climatic conditions without failure.

Humanized operation design

The so-called humanized operation design, which is very suitable for people of simple and convenient operation. As far as possible

Push-button operation, there must be a clear indicator and horn tips, it was hidden in its installation and high, can also use the remote control, will focus on the daily operation of the remote control.

Practical design

The so-called practical design, the system is very practical, easy to use, with fewer links, easy to learn. Can be easily set up automatic function, as well as theft, fire, access control systems linkage, high degree of automation, the system can occur in case of an actual infringement of timely pre / alarm. In addition, also requires a self-test function and self-test results regularly reported to the management center, accept the management center monitoring, in order to maintain failure immediately.

Economic Design

When considering the economic system, in addition to considering lower development cost of the system, outside the production costs, but also take into account the system's cost, including maintenance fees already during use, spare parts fees.

In order to obtain a higher price, the design should not blindly pursue complex advanced solutions. Under the premise of meeting the performance indicators, as far as possible using a simple program, because the program is simple, simply mean that a structure, high reliability and low cost.

After the above factors into account, then select OK appropriate programs.

Friday, 13 November 2015

How to use IP network video matrix switch for IP CCTV surveillance system video wall?

What is network video matrix?


Network video matrix is a switching control system which can decode any network video stream to any HDMI/VGA/DVI output. In general, an M × N matrix: that it can support M channel network video input and output N-channel images.


Why we need network video matrix?

When we build a big scale IP CCTV surveillance system, for example, the IP cameras quantity is more than 100 pieces, we want to monitor all video at same time, but we don't want to buy many monitors, in addition, we always need to zoom some important camera video to full screen or combine multiple channels video.In traditional CCTV system, we always use analog video matrix switch and video wall controller, the wiring and operate is difficult, the cost is also high.

If we use network video matrix, we can use one device to manage all video, and input any network video to any display, we also can  splicing zoom/merge/roam/overlay; polling and other support, mode management, and convenient mode to call;

What is the network video matrix functions?

Video / audio input: 
can be either an analog signal input, it can also be a digital signal input. Front of the camera can be directly input analog signal can also be DVR, DVS, IP CAMER other digital signal input. Audio and video digital systems are in pairs, then no separate audio function.

Video / Audio output: 
either by an analog signal output on the TV wall, the digital signal can also be output on the TV wall. BNC / VGA dual output. And visual and audio synchronization output, without the need for additional audio module. It supports up to HDMI high-definition digital screen output, the maximum degree to show up to 120 inches or more large-screen display advantages Multiple HD video at the same time.

Local video switching output
Group switching, synchronous switching switch settings and perform program instructions, forward switching backwards; high-speed ball and PTZ remote control, bright light and dark, far focus, near focus, preset settings and other functions. The full realization of all analog matrix switching function, and each manual or automatic switching function to do a lot of optimization, such as mobile video frame measure alarm linkage switching functions.

Split screen function
1/4/9/16 split screen support, support for multiple monitors while multi-split screen. When playing back multi-split screen support, and also supports the historical and real-time video with different windows at

Where we can buy network video matrix?

You can buy network video matrix from local suppliers, but it is a good idea from China's network video matrix manufacturer, for example, Hikvision DS-B21 , Dahua DH-M70, Sysvideo SVM6000 series  , the price is cheaper, but the quality is also very good.

Thursday, 5 November 2015

How to find professional China network camera manufacturer

There is no doubt that Guangdong province in China has become a manufacturing base for global IP network products, but also the world's most centralized IP network camera manufacturers, China mainland is the country with the largest IP network camera actually owned companies. According to statistics, all China mainland CCTV products company is over 2000, they can manufacture all kinds of video surveillance network camera products more than 30 million units, but due to the low barriers to entry, now most of the China surveillance companies are SMEs, and the confusion in the market, product quality is uneven, particularly in most camera factories are purchased by other developer network camera module, and then as simple as analog cameras assembled, the product is cheap, but the quality is not guaranteed. Therefore, we must consider the following items when selecting a China IP camera manufacturer



1. To know the strength of the ip video camera vendors

The users need to know the strength of China's surveillance manufacturer, manufacturer of relatively low barriers to entry industry, production of product quality varies greatly, some manufacturer and therefore can not go on long-term development in the market, to users sale inconvenience, many users complained that after the failure of high-definition network camera, often even the manufacturers are to be found. So, before you purchase, the manufacturer should have sufficient understanding.

At present, China is divided into four kinds of network camera manufacturers:
First: industry giants: Hikvision and Dahua, analog and digital front-end, back-end system and all other security products, well-known;

Second: focusing on network video surveillance product development and production company: for example Sysvideo, Histream, Launch digital etc;

Third, focusing on the development of network cameras mainboard, do not provide the full IP camera company : like Xiongmai and Topsee.

Fourth: traditional CCTV camera factory, No developing experiences, these factory, before they assemble analog cameras, is now available from the ip video camera solutions factory ip video camera parts, then assembled, the prices are very cheap.


2. Does the Chinese ip video camera factory to provide the back-end video equipment and software

The user need to consider the compatibility of IP video cameras, it is best choice the factory who can provide IP network cameras and network video recorder , central management software, if you purchase IP network cameras and recorders from different suppliers there may be incompatibility problems.


3. Checking China mainland's IP network camera company service quality

Under normal circumstances, the difference with the level of company to produce high-definition IP network camera is not large, who can provide customers with more comprehensive services, who will be able to dominate the market. Before buying, users can often communicate with company and technical, will be able to fully understand the IP network camera factory service projects. It should be noted that,

For the manufacturer's warranty item must be knowing, avoid problems after-service cost is too high. In addition, many IP network cameras factory from analog camera company, they have no support software of good engineers, the service will be bad, a problem difficult to solve.

4. The IP CCTV camera product price comprehensive comparison

Due to strong market competition, many supplier in order to reduce costs, it will save a lot of product testing process, they use the lowest materials, although the price is very low, image quality looks no big difference, but relatively bad stability, after a very long term run to failure. So when users select products, they can't choose the cheapest products.

5. Does China IP camera factory able to provide OEM service

much CCTV products distributor like to use their own logo, they hope Chinese IP CCTV camera manufacturer can provide OEM service, because most Chinese factories don't have ability to develop network cameras, and therefore can not provide customized development of hardware and software.

6. Understand the network camera manufacturer location

At present China's leading network camera manufacturer concentrated in Shenzhen and Hangzhou, for example Hikvision and Dahua in Hangzhou, Sysvideo and Histream, Sunell,Launch in Shenzhen.


7. Learn China's network camera factories established

As the network camera products need to involve a lot of software development, must go through a long period of accumulation of experience, so through a company established time, you can judge their R & D skills.

8. Select the matching network cameras companies

While the large company, such as Hikvision has a more comprehensive product line and greater strength of the company, but does not mean it is your suitable partner. Due to the big company famous name, and the price will be very transparent, the agent difficult to make high profits. And big companies have a fixed agent in each country, other new company in order to distribute their products more difficult, and their sales policy is not flexible, it is difficult to obtain personalized services. In addition, not every product is the best. But like Sysvideo who focused on IP network cameras and network digital video recorder products and other professional developers are more flexible, also can providing Original equipment manufacturer customized service.

9. Asking China mainland's network CCTV professional engineer

China mainland network CCTV industry market is chaotic, to really understand a IP network camera manufacturer , a better approach is to consult Chinese surveillance professionals or surveillance media, they are very clear to the actual situation of each manufacturer. Len Yang, Chinese network camera expert, own more than 10 years ip video expericens.