Why Network Camera This function is very important ?

Why Network Camera This function is very important ?
A: "DigitalTimeCodeEmbedded" time information of the video function is to be embedded in the MPEG data stream , instead of the data stream is divided into two and then do compare , so the actual time of each picture will be stored . When the user wants to find a video record or a specific period of time , which is quite handy . If the network cameradoes not support this feature , users must search the entire video stream , which will take considerable time . Some cameras have the function to simulate the application , but it is not precise enough in terms of time recorded, a video stream with the "DigitalTimeCodeEmbedded" , is also called "SmartVideo", and can be done by some other client software more applications. Other advantages include providing DigitalTimeCodeEmbedded watermark in the video stream . Due to the time information is embedded in the video stream , so once the video has been tampered with , the time information will disappear from the video data , and can not be recovered, so the time information can be used as a watermark to prevent the video is fake , so that users can easily identify video authenticity.
Q: Are there IP Camera offer motion detection function ?
A: Yes . Network camera have built-in motion detection provides functionality rather than through software to do . In general, if implemented in software motion detection , response this time from the incident to the camera will have a larger time difference , in terms of professional monitoring is therefore quite unsafe.
Q: scope of application of network camera are there?
A: mainly used in professional security systems, remote monitoring from the scene of the real-time images over the network. Network cameras can easily be integrated into large, complex systems, but at the same time can be used as a stand-alone system to be used in a more simple monitoring environment. The product can be used to monitor some of the more sensitive and requires a high degree of vigilance in the area , such as buildings, banks and shops , these sites can be in the vicinity of the central control room to monitor, remote locations or by different security center to monitor .
IP Camera can also be used in some replace analog cameras , especially in law enforcement installation locations such as tunnels, intersections and so on. Network cameras can also be used to manage access control security , whether human or vehicle can be recorded topography and time passes , so very easy retrospective search. The video data can be stored by the network on a remote server , without worrying about data theft issues. Network camera is very easy to connect to the existing IP network , and can provide the country with high-quality video in real time over the network . For some sensitive areas , such as computer rooms , bank counters or other remote locations , available through a local area network or the Internet , using the most economical and simplest way to watch closely . IP Camera can not only strengthen the chain store monitoring to ensure that all was well , and also provide a high degree of protection office security , such as reception , meeting rooms , etc., when an accident occurs , you can search for what people have to enter the computer room to do the appropriate treatment . network camera for manufacturing firms is also a very useful tool , supervisor in the office or at home , you can monitor the plant's automated production equipment, other machinery and production lines , and so on . In addition, if with PTZ (Pan / Tilt / Zoom) enabled network dome camera , you can also do more complex monitoring, like being at the scene.

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NVR is not a replacement for the DVR

NVR is not a replacement for the DVR
DVR appeared on the stage of the digital video surveillance technology is a mature product after years of development . DVR in video codec technology, network transmission technology , embedded technology, storage management technology and personalized application technology has a profound accumulation. Meanwhile DVR rich experience and specific applications , but also created many kinds of product form .
NVR appeared in the digital stage , access to the network development stage . Many major technology directly from the DVR, such as memory management , on-demand, network transmission , embedded technologies. Inheritance of mature technologies , making NVR can quickly reach the practical level, but on a mature technology with a heritage not just talk about it can be done , it needs to produce a higher level of technology companies and deep technology , the accumulation of experience . In addition , NVR DVR on the basis of inheritance as well as the development of high-definition is a typical example.
With the technology development phase of change, there are many views on the development stage of the network NVR deemed born in stage DVR digital alternative , of course , and the "replacement DVR" as NVR existence of " mission" and "target" . But this view ignores the fact that , intentionally or unintentionally , that is - DVR and NVR products are suitable for different needs , their goals are different designs , different problems , not the same trajectory , so although developed in a different era , but does not affect both meet the needs of multi-level marketing . If the NVR locate alternative location on the DVR , then I am afraid that ignores the true value of NVR 's lies.
NVR fog
NVR ( Network Video Recorder ) , is on the market in recent years gradually rise of a product form . Its main function is to record online video streaming , video -on-demand and provide other functions. If we trace the origin of the concept of NVR , you will find that it does not appear much later time than the DVR. But until recently NVR frequently enter our field of vision , the reason is due to a network camera NVR IPC backend supporting products, network camera in recent years with the rise of the IP Camera , its value gradually concern for people .
For network camera industry prospects IPC has almost reached a consensus , however, understanding the NVR as well as its future development ideas , the industry rarely have the same voice. For now seen to analyze the situation , one is involved in a number of vendors and their market position, technology and technical background is different. On the other hand is the way to achieve a variety of NVR , the software in the form of pure NVR software, pure hardware in the form of embedded NVR, as well as to show people the face of the disk array storage type NVR, the road to a few small -scale stand-alone NVR to the platform level NVR-Server ...... difficult to use a uniform standard or form to summarize. Finally, from motives of view, some manufacturers in accordance with the law of the development of industry and technology, the NVR system in their products as necessary to supplement and improve long-term planning , but some vendors will as a kind of short-term profit growth , acute for this piece in the newly opened "battlefield" on " to regain lost ground ."
All this created a flourishing NVR market today , contending situation. This situation vaguely shadow then just started some DVR . But experience tells us that - any kind of product , regardless of its position on how , what was given advanced concepts , its core values ​​should be based on user demand as the center, otherwise it is difficult to escape the fate of being eliminated . This article from the perspective of a brief analysis of the needs of the real value lies NVR products , for information .
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From:http://www.vstarcam.com/channel/NVR-is-not-a-replacement-for-the-DVR-418.html

NVR Network DVR emerged, reflecting high demand value

NVR Network DVR emerged, reflecting high demand value
Any kind of product are produced due to the demand generated due to development needs and development, where is the value of the product to meet the demand . Development needs of video surveillance today, the standard uniform , open-minded , intelligent and gradually become the mainstream demand for high-definition ; IP networks as well as standard and open nature , a new generation of video surveillance technology carrier.
The IPC network camera and network video recorders NVR Network DVR these two products form is developed under this wave of wave and gradually maturing .
Compared with the traditional analog cameras , IP camera IPC is an efficient , open and intelligent features , especially through the network CCTV camera CCTV system can break through the traditional shackles for image clarity , higher resolution HD monitoring. Among the many advantages of network camera among the only " HD" irreplaceable . Therefore, in order to meet the high demand , the front-end video capture devices need to network cameras transition from analog cameras , it has been widely recognized, in other words , the era of high-definition network camera belonging IPC is to high for us. As network cameras network video recorder supporting product NVR, also belong to adapt the product definition requirements ; true value point network camera IPC + Network Video Recorder NVR network DVR solution lies meet the needs of high-definition applications.
From the current point of view , the application is also limited to only a few high-definition industrial users , such as public security, transportation , etc., in the wider application of the general industry users also difficult . This is one of many factors , primarily the cost of the application and supporting programs in two ways. A complete HD monitoring system includes a variety of links, high-definition network camera is only one ring . In small-scale monitoring system , with NVR Network DVR HD IP camera can achieve access and management, high-definition video storage, display and on-demand . NVR Network DVR HD emergence of small-scale solutions to become a bright spot , and it simplifies the system architecture and the composition of the installation, configuration process to the maximum extent , make it easier to use HD . This is helpful for users to accept and use common definition is significant.
Of course , the cost HD monitoring system between the application and the affordability of ordinary users there is a certain distance , it is an indisputable fact. I believe that with the popularity of the whole industry chain and upgrade applications , the two eventually reach equilibrium .
Needless to say , HD is only a means , it is important for high-definition hosted application. To really play HD value, but also require more attention to industry needs, provide differentiated solutions for different needs . In this regard, the smart technology provides us with a shortcut. On the other hand , based on the intelligent application definition , means of monitoring system can help users achieve their business functions to create value for customers ( rather than wasting ) . Such as high-definition smart card system in the police and port transportation industry is a very good example.
"HD" and "smart" to lead the future direction of security surveillance industry , positioning NVR Network DVR should also conform to this trend of the times . We should not focus merely "NVR Network DVR realize how much DVR functionality ," " Network Camera + NVR Network DVR what extent can replace analog camera + DVR" on an old idea like this. Network Camera + NVR application programs in high-definition era can do and there are a lot needs to be done , we should look beyond some of the long-term , more thinking through the IP Camera and NVR we can achieve for the user to tap and what new value. NVR conform to the needs of the emergence of further development of the network , the application of the definition of simplicity and popularity so high into routine use .

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high-definition monitor network advantages than analog systems

Consolidated cost of millions of high-definition monitor network advantages than analog systems
HD network camera surveillance with respect to traditional analog surveillance is a distinct advantage. First, clarity , IP network camera over the analog high-definition surveillance cameras clearer, more current application is to meet 720P HD video camera , monitor the quality of such products from the past " visible" upgrade to the current " see it clearly . " In addition, based on the definition and network security monitoring system also for the future direction of intelligent security monitoring , network development has laid a good foundation.
From the market point of view, digital high-definition surveillance applications focused on government-led peace of the city , intelligent transportation , and banking and finance industries. Future, with the promotion and popularization of high-definition monitor , plus networking era of positive factors , the civilian market will be room for growth in emerging high-definition monitor .
Currently , the resistance in the promotion and popularization of high-definition surveillance mainly from a misunderstanding of the concept of presence and awareness . Many do analog monitor contractors to high -definition and equate that high prices must be high. In fact, in some programs , integrated HD network camera surveillance cost millions of simulated more than just the contrary , " approachable ", the first network camera prices getting close to the high number of lines of analog cameras , and network monitoring program in the amount of wire , wire cost , fiber optic transmission equipment, construction and maintenance costs far less than other aspects of the analog monitor . And the more complex the number of road or line monitoring project , the greater the advantage of high cost .
From the past " visible" , and now " see clearly " Millions of HD digital surveillance technology for the future to network security monitoring , high-definition , intelligence development has laid a good foundation. Most monitoring equipment manufacturers also optimistic estimates , in 2015 , megapixels digital camera HD camera will be more than simulation , to become dominant in the field of security monitoring . It should be noted that high-definition monitor is a complete system , not the installation of several millions of HD surveillance IP Camera in the front so simple , so perfect to demonstrate the advantages of high-definition monitor , you also need front of the camera , transmission, and back-end common support for HD storage devices, displays, in order to achieve the best definition effect . It can be predicted that the future of video surveillance systems will be based on the realization of high-definition , implanted intelligent analysis techniques , from the current "passive" monitoring, gradually changed to " active" monitoring, "active" pattern recognition , really play proactive security effects.

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Network Camera monitoring dialysis : megapixels is equal to HD ?

Network Camera monitoring dialysis : megapixels is equal to HD ?
In our often chase to catch a fashionable trend for security surveillance , high-definition doomed to become a pariah here . Especially in the past two years , high-definition surveillance system heated discussions , and megapixels IP Camera features are also competing in different market, one after another. But some people do a standard or concept disoriented , confused . A wide variety of cameras, each with its own statement, only thing is that both claimed to beHD IP Camera . But asked what kind of camera is the HD network camera , but no agreement. In fact, in this area of security cameras , HD and megapixels thing really is not the same code . ......
What megapixels ?
In fact, when we say that there are a few megapixels camera , we do not understand its frame rate, scan mode, to ensure the degree of color and so on. Therefore, we can not know more performance and better surveillance cameras . The so-called " megapixels " is not a very clear standard . It is merely a description of the number of pixels of the camera image sensor . When any of a number of pixels the camera has reached 1 million , you can call megapixelsnetwork camera . In the current products on the market , the minimum number of pixels megapixels of 1.3 million pixels , and the highest number of pixels can reach 10 million pixels. Camera in this range can be counted as megapixels camera .
Real practical megapixels network camera with pixels in 1.3 to 3 million ; currently on the market in 720p (1280 * 720) and 1080p (1920 * 1080) camera surveillance market to occupy a high of more than 90 % market share , in terms of product monitoring effects or network environment, both standard surveillance cameras more in line with development of the market . There are data to show that 1.3 million pixels 720p , 1080p to 200 million pixels.
What is HD ?
"HD " standard has been the subject of debate within the industry . The so-called "HD" should be a complete technical concepts, including from the filming, production, storage , distribution and display of the complete process . Currently more mature is for "HD display " defines the system, as defined by the United States Advanced Television Systems Committee ( ATSC) HD TV for the following three : 720P (1280 × 720 progressive scan ), 1080i (1920 × 1080) interlaced , 1080P (1920 × 1080) progressive scan ) . 720P as a transitional index , in fact, has gradually be included in the scope of the " standard definition " of . HD 1080P truly present the equipment manufacturers strive to promote and popularize a standard . Based on this fact to measure , 720P physical pixel is about 100 million pixels , 1080P corresponds to about 2 million pixels , the higher megapixel devices is "high definition " real barriers to entry .
HD standard
SDTVD1 ( standard definition ) for the 480i format , the same definition and NTSC analog TV , about 35 million pixels .
SDTVD2 ( standard definition ) to 480p format , the same definition and progressive-scan DVD , about 35 million pixels .
HDTVD3 ( High Definition ) format to 1080i interlaced resolution 1920 * 1080i, about 2 million pixels.
HDTVD4 ( high definition ) to 720p format , progressive scan resolution of 1280 * 720 levels, about 100 million pixels .
HDTVD5 ( High Definition ) format to 1080p , progressive scan resolution of 1920 * 1080p, about 2 million pixels.
Megapixels is equal to HD ?
HD is an important part of megapixels , while megapixels is also important to some extent based on the HD . In effect , the whole HD and megapixels are pointing to a more advanced level than ordinary clarity , so many features and measure the effect that they are very close , but in essence , they have a very big difference.
If you say the definition , it can be broken down into two aspects, namely high-definition and high-definition camera lens system . From the standard , the system is clearly better than standard definition camcorder HD requires more comprehensive. Compared with ordinary definition cameras, HD cameras in addition to following a standard definition than the general camera uses cmos sensor and a digital signal processing technology . Some cameras also put as an important technical support progressive scan HD monitoring equipment .
For HD monitoring systems , high-definition network camera is just the whole system is an important front . To achieve true high-definition surveillance systems , in addition to have a high-quality analog signal acquisition devices, video signal compression technology , playback signal transmission technology , video browsing, and audio and video files must also be part of a comprehensive system of support for HD . For users when monitoring , the HD IP Camera only cover all aspects of the front , monitoring and management platform , information storage, monitoring terminal display system , the entire system can only achieve high definition .
Therefore, the current market for some simple network camera megapixels will say a speech HD monitor is undoubtedly very absurd. For the camera , if only the tip of the lens definition , without performance of video processing techniques or other sensors , then the number of megapixels is not necessarily return the lens effect of HD .
Megapixels camera is equal to the HD lenses ?
Megapixels definition of the relationship between the monitoring camera is not limited to , wherein the surveillance camera is very important .
View: megapixels camera lens is equal to HD . " The market generally believes that it can be called up to 720P megapixels camera ." Which is "HD Lens" think outside besides megapixels camera.
Second point : megapixels camera is not equivalent to the HD lens. " Megapixels " literally understood even more than one million pixels, but 1,000,000 , 1,300,000 , 2,000,000 , 5,000,000 pixels , although both belong to the megapixels , but not entirely belong to the " HD lenses ."

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Back-illuminated CMOS sensor performance and development of IP Camera

Back-illuminated CMOS sensor performance and development of IP Camera
Current digital technology , the rapid development of semiconductor manufacturing technology and networks , market digital products and then grow at an alarming rate , the composition of the video , audio-visual products, key components of the image sensor (Sensor) has become the object of the current and future industry focus . There CCD image sensors and CMOS two chips , but in our current HD security surveillance , both chips have applied technology .
Development and application of image sensor
The eyes are the source of the human visual image , and the image sensor is a video capture device image receiving device . The image sensor according to morphological classification in general there are two types : linear image sensor , image sensor surface . Linear image sensor is used in scanners, copiers , fax machines and other devices. The face image sensor is widely used in our well-known security monitoring network camera , cell phone camera , car reversing video cameras, tablet PCs and other products.
We just said, a CCD image sensor chip with two CMOS. Early on, we usually think of excellent image quality CCD sensor devices are used , and low-cost products use CMOS sensors. However, the new CMOS chip technology has overcome the technical weaknesses early CMOS sensor , compared to the old products designed to enhance the low light performance of the sensor , the exposure mode. Take the popular back-illuminated CMOS sensor , in the conventional CMOS image sensor, located behind the light-sensitive diode circuit transistor , the light will pass between the microlens and photodiode circuits and transistors, it will be due to the amount of light blocked and affected.
Back-illuminated CMOS sensor on the internal structure of the original image sensor optimized , the original will photosensitive layer reverses direction , so that direct light from the back to increase the amount of light into the chip, so back-illuminated CMOS image sensors than conventional CMOS the sensitivity of the sensor on the photosensitive qualitative leap in low-light environments , the use of back-illuminated CMOS sensor HD IP Camera has been a great performance in the ability to focus , image quality performance , image noise control and other aspects .
Back-illuminated CMOS image sensors , etc. In addition to excellent low-light performance , but also has high sensitivity and better noise control performance. That after the ISO increased much less noise than CCD . This is a great advantage in low light image capture environment, high frame rates and better performance .
Back-illuminated CMOS sensor chips are often high-speed , large -chip support full HD quality frame rate of 60 frames per second or higher image output , and in this regard CCD sensor more difficult. Now the mainstream adoption of back-illuminated CMOS sensor network camera mostly support 1080P @ 30fps full HD video or 720P @ 60fps. And our common CCD sensor camera can only 720p @ 25fps, support 1080P format CCD sensor is too costly . Back-illuminated CMOS sensor pixel can be higher.
Although both the back-illuminated CMOS or CCD, can increase the effective pixels. However, back-illuminated CMOS sensor structure determines the area under the same circumstances , you can further enhance effective pixels , the picture quality can be maintained quite well . In contrast to blindly increase the pixel CCD , it will be poor quality , and with improved pixel , the chip size is also larger cause costs to rise geometrically .
CCD sensor manufacturing process is more complex, with CCD sensor camera prices are relatively high. In fact, after transformation , the current gap between CCD and CMOS practical effect has been reduced a lot. And CMOS chip manufacturing cost and power consumption must be much lower than the CCD, so a lot of network cameramanufacturers use CMOS image sensors. Imaging : In the same pixel CCD imaging permeability, very good sharpness , color reproduction , exposure can guarantee basic accuracy .
The permeability of CMOS products are currently the general picture of the kind of color reproduction capability is weak, exposure mode using the Rolling Shutter mode due mostly caused by the presence of fast moving objects sensor distortion problem when capturing , CMOS and CCD imaging sensor in the picture quality more stringent quality requirements of the scene or a certain distance. However, due to low prices and high level of integration , so the increasingly rapid development of high-definition camcorder market is still widely used.
The latest research results of the image sensor
2012 CMOS image sensors favored by the market over the last important reason is that the problem is much lower than the sensitivity of the CCD sensor due to the use of new technologies, such as back-illuminated CMOS, gradually resolved. Compared to the CCD sensor , CMOS sensor has a better mass productivity , and easy to implement other logic circuit comprising including SoC (System on Chip) products, which is difficult to achieve in the CCD chip.
In particular, unlike the CCD chip is a CMOS sensor that requires special manufacturing process, and therefore can be used directly for DRAM and other high-volume production equipment. As a result , CMOS image sensors is likely to form a completely different cost structure of the CCD image sensor , but also for highly integrated CMOS sensor has opened up a new direction . The early market once launched CMOS sensor comes ISP processor , containing 2A (AE, AWB) control algorithm. The development so far , such a product very welcomed and favored by the market .
Many do not have the ISP image processor / ISP algorithm research and development capabilities of small businesses can use the built- 2A processing CMOS sensor to produce high-definition video camera. The traditional definition cameras architecture, front to back is generally divided into several components : an image sensor SENSOR, ISP image sensor , compression / signal conversion process ; ISP if using the integrated CMOS sensor , the middle part of the realization of the use FPGA chip ISP unit can be eliminated , so that not only effectively reduce the overall BOM cost devices , and bypass the ISP algorithm development threshold. Currently on the market price relatively cheap 720P HD IP Camera mostly use such programs .
Manufacturers have recently introduced a wide dynamic integrated Real WDR HD frame-level back-illuminated CMOS sensor , and before the integration of CMOS SENSOR 2A different functions , this product uses a frame-level sensor manufacturers skilful wide dynamic technology. We know, for high-definition video camera image processing , especially ISP relies in part on more than just research and development, but also rely on image processing for debugging rich accumulated experience. Then comes a frame-level features wide dynamic back-illuminated CMOS sensor products will not only enhance the dynamic range of the sensor to 120dB or more, but also for the camera manufacturers save R & D investment .
This ISP in addition to the integration of image processing of the image sensor , an integrated compression future market is one of the direction of the image sensor . The core components of the camera is a highly integrated future trends , which have benefited from the CMOS sensor has better production , but also easy to implement architectural features include other logic circuits.

From: http://www.vstarcam.com/channel/Back-illuminated-CMOS-sensor-performance-and-development-of-IP-Camera-403.html
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Karma relationship HD network camera and NVR between

Karma relationship HD network camera and NVR between
NVR network can be constructed by means of a more flexible system that can be deployed beyond the traditional sequential pattern layer by layer , to reduce intermediate links , fast direct monitoring business between image sources and users , there is no intermediate conversion sectors , more efficient use of resources investment is also more economical ...
HD network camera in recent years, rapid development , and its ability to adapt to the environment and a friendly price , gives a feeling of Brief Encounter , so just a few years , it has made surprising progress , high-definition network camerathe application is inseparable from NVR, both picked up the pace . SD sway in the era , NVR also do not see a particular advantage , to the high-definition era, there is a real situation but myself . NVR can be said to be flying , the network is the platform for takeoff , standardization and definition is its wings .
Reliable storage allows users to remove the worries
Storage characteristics between DVR and NVR 's professional network storage devices, both the advantages of both . For example, inherited the DVR application is simple and convenient , but also have a professional storage reliability. Support for common hard drive, reducing the cost of using and supporting simple and effective application mode can significantly extend the life of the hard drive . Optional support for various RAID levels generally provide highly reliable storage solutions , so that the video data is not important because the hard drive is damaged and lost.
In recent years , ANR technology and IP Camera NVR to be implemented , the problem may be caused by network transmission failures effectively circumvent . NVR device reliability is achieved by means of the network , the system practical applications built in multiple NVR , N +1 technology can be used when a station NVR fails, its jurisdiction to monitor resources can be taken up by the spare equipment , and prompts the user to troubleshoot and ensure the reliability of the overall system to the maximum extent .
Networking flexibility makes network monitoring infrastructure construction
NVR network can be constructed by means of a more flexible system that can be deployed beyond the traditional sequential pattern layer by layer , to reduce intermediate links , fast direct monitoring business between image sources and users , there is no intermediate conversion sectors , more efficient use of resources investment is also more economical. For example , to build a network -based NVR surveillance system , deploying video wall , just TV wall decoding devices connected to the network , regardless of the desired image resources ---- real-time images or video playback , as long as authorized , you can point directly access to , and so do not need the middle part of the matrix . When building large-scale applications to better reflect this advantage , which could explain the current choice of various large-scale monitoring systems are network construction .
In addition , NVR and IP Camera constitute a functional structure is relatively simple , but perfect for small systems , up through the management and control interface can accept a unified dispatch from the superior platform , thus ensuring that the fundamental and important video and other nearby businesses to achieve system-level business completed by the higher platform orderly division of complex systems is decomposed , robustness can be improved.
NVR as a product of the Internet age, far beyond its mission to become the next generation of alternative DVR video surveillance equipment , along with new technologies and customer's individual needs are emerging , NVR is showing its strong lateral tension Business Integration .
And intelligent integration to make the video more valuable
Intelligent monitoring is no longer a new topic in the past have never been monitored as they are now more realistic. Because HD , so intelligent and will not smoke and mirrors , because the HD , so smart do not need to put on a stage festooned deliberately shot .
NVR also by means of the application of intelligent technology allows more efficient. For example , 1 ) intelligent search , so that once time-consuming red tape recording has become extremely easy to access , so that the eyes appear instantly interested in the event , without concern for the time period of the video has nothing to do ; 2 ) intelligent video quality testing , NVR can regularly test the connection of the camera image conditions, such as the lens cover , focus blur and other conditions, can be found in a timely manner and notify the user ; 3 ) a combination of NVR and IP Camera can achieve real-time intelligent alarm functions : the warning area , goods protection, crowd and brawl detection ; 4) NVR can also achieve some commercial applications useful features , such as people counting , walking tracks drawn human face recognition. Depth data mining , so the video will become a speech .
Integration with mobile networks
Wireless applications become increasingly widespread. NVR can watch live video via mobile phone or tablet PC via a wireless access Network Camera and even mobile phones can also act as a network camera allows flexible implementation of interesting applications .
NVR with intelligent bandwidth adaptation designed to automatically adjust the bit rate of the video stream synergistic according to network conditions , whether it is 2G or 3G, then or WiFi, can try to provide sufficiently clear and smooth video .
In the car -specific applications, has special requirements, the need for multi-channel wireless technology requires adaptive system , also need to have superior seismic capacity . Some well-designed NVR have emerged, steady stream through the wireless transmission of high-definition video , you can also order a hot car -centric deployments , to provide mobile systems operating near back-end services such as video recording and management , to the traditional automotive systems with to a different application modes.
Deep integration with enterprise applications business
After in-depth analysis of market applications , we found NVR play an increasingly important role in enterprise applications, from the most basic security monitoring equipment to start carrying more applications , has become an important management tool for enterprise visualization , such as on -site production line management, supply chain management, warehousing and logistics management, the application scenarios , it brings true image recording and integration of information is other management tools can not be compared. In particular, there is a chain of branches in the enterprise , NVR is deployed in each branch office structure , with headquarters synergistic information , although like every thousand eyes, ready to carry out on-site management . Can also provide services such as traffic analysis , reference information , such as customer preferences analysis than witnessed more efficient. At the same time as a management entrance NVR headquarters , in addition to providing images and information, the possible aspects of the two-way voice intercom, the application can also be extended to two-way video communication , corporate training and feedback , instruction issued and inspection provides an intuitive channel , and get these at no extra cost inputs , it can greatly improve the efficiency of business management operations.
In some medium-sized enterprises based on the image of the scheduling needs are very urgent command , and its headquarters and large branches are generally deployed video conferencing systems, this time need to keep branches seamless access to information for judgments image analysis, NVR will have higher requirements , to be able to interoperate with video conferencing systems generally use standard H.323 or sip agreement to build, for NVR , these naturally not difficult.
Combined with cloud build service-oriented systems
The concept of cloud computing is not yet universal promotion in the field of security monitoring , but the practical effect existing network monitoring system is actually a cloud system, but the small size of the point , part of the private cloud category. NVR can serve as a basis for this piece of cloud particles is also in charge of a core area , to provide resources to the upper system is also enjoying it brings services.
NVR generation of sufficient resources to open , is no longer a one-way flow of business units in the traditional sense , the resources can be allocated on demand , many combinations can be formed NVR as a large pool of resources , as a basic service , but also into a virtual platform services .
Current cloud storage applications in the monitoring system is not realistic , but it is intelligent cloud technology is an important landing point landing in monitoring . NVR can be transported to the upper cloud intelligent analysis of the results , so that the cloud easily get accurate information effectively , on the other hand , the cloud can provide global intelligence services to achieve interoperability integrate information sharing computing resources can be achieved .

From: http://www.vstarcam.com/channel/Karma-relationship-HD-network-camera-and-NVR-between-402.html
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Security diversified network monitoring or in combination with things

Security diversified network monitoring or in combination with things
From 2009 onwards , network products will gradually seize unstoppable attitude photographed analog products , and starting in 2012 , manufacturers of new products and product launches , the almost invisible traces of analog products , replaced by a network the one-armed dyke . Safe city construction driven network security market , look to the future , diversified development trend of the industry will lead the front -line monitoring .
Safe city construction , bringing the era of high-definition monitor network
HD Network Camera provides clear visual experience to the people , but also a higher network bandwidth requirements . Real-time video to 720P for example , using a standard compression algorithm H.264MainProfile need 2Mbps HDNetwork Camera to get "high definition" visual effects at least , but you need 4Mbsp 1080P full real-time video above . Ordinary ADSL upstream bandwidth already unable to meet the needs of high-definition video .
With 3G, Wi-Fi, private network , such as wireless , remote wired broadband transmission and application of mature technologies , the flow of data is more convenient , it also eliminated the high-definition Network Camera in a wide range of applications in the transport barriers. Currently, the city of peace , finance network monitoring projects usually self-built fiber network or local area networks 1000M bandwidth networks . This gigabit bandwidth resources , installed in front of 100 full-time road 1080P HD Network Camera ( even 4Mbps per road footprint calculation ) , occupying a total bandwidth of less than 50% ; If you are using 720P transmission bandwidth can also be reduced by half . This can effectively support the practical application of high-definition Network Camera .
In wireless transmission , 3G network speeds up mobile Internet speed , so videophone , mobile games and other applications in full swing. But in the security video surveillance industry , still no substantive application . The reason is , first 3G network construction is lagging behind ; Second 3G tariff is still too high. The face of high bandwidth requirements for video surveillance , 3G is the skills needed. To realize high-definition wireless video surveillance, also need to wait for 4G promotion. Currently , TD-LTE is emerging as the 4G era we opened the door to high-definition video surveillance .
Leading the trend of diversification monitoring network monitoring
This year, the industry leading enterprise security push into the civilian market , which greatly promoted the development of civilian security process. Network monitoring as the primary form of expression is bound to usher in civilian surveillance is not the same in the future. Hu Ruimin believes that the future development of network security may be more segments, and there will be new forms , such as virtual networking, that with the advent of big data , even if there is no front-end products , tools, data analysis can also be realized over the monitoring. In addition , Network Cameras can also work with networking, mobile devices, combined , appear a new development model , specifically, there can be the following ways:
IP networking combined with HD cameras
As things RF technology (RFID) in the successful application of RFID in the future can be achieved with a combination of high-definition video seamlessly leading to good practice . Data via COM interface can receive HD IP Camera over the RF transmission , so combining images and RF . For example, this technology can replace the fixed punch , thus helping to improve the identification of illegal workers , many of the more tedious the actual work , reflect the value of high intelligence , high-tech .
HD IP Camera in conjunction with mobile devices
With the popularity of 3G technology, as well as high-definition IP cameras each have their own unique IP address can be used with mobile devices through 3G network direct network connection , real-time transmission of high-definition images , wireless HD video transmission. You can also configure the HD IP Camera built in Email, FTP client , such as when the device HD IP Camera can Email, FTP , etc. The alarm is triggered to capture images or videos sent to mobile devices. You can also connect via COM port and SIM card can connect devices using SMS , sent to specified handset under MMS . So you can do real-time monitoring and intelligent , but only a small bandwidth utilization and cost .
HD IP Camera combined with intelligent
Because IP HD Network Camera with a front-end that is the operating system , all on the front end can be attached to a lot of intelligent algorithms. Intelligent algorithm can deal directly with the original image information output from the chip , based on the original image and do some proper , suitable applications where features , such as the number of statistical functions can be embedded in the entrance . This function can be monitored on the camera screen to analyze the number of automatic statistical calculations across important entrances or designated area or object. But also in the low-carbon era , the algorithm combines intelligence and energy saving ideas are opened up another huge market. In government agencies, schools, businesses and large home environment , but also the use of intelligent video analysis technology to eliminate the huge energy waste and safety hazards , such as automatic turn off unnecessary lights or turn on lights or someone office work as needed to adjust the light intensity and so on.

From: http://www.vstarcam.com/channel/Security-diversified-network-monitoring-or-in-combination-with-things-401.html
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What are the advantages of network video surveillance cameras

What are the advantages of network video surveillance cameras
In addition to Network Camera anywhere in the world via the Internet for remote monitoring , but also can effectively reduce costs through network monitoring, it 's "plug and play " function , no need to be the same as analog cameras installed coaxial cable. As long as the use of existing network can be used, which are the advantages of the network camera at .
System Benefits
Has the following advantages based network camera systems :
Advanced: use existing cabling network transmission of images , real-time monitoring system for the front-end equipment less connection simple, just a back-end software system can be;
Reliability: The main equipment IP Camera uses an embedded real-time operating systems , the required equipment is simple , and image transmission is achieved through an integrated network cabling , system reliability is quite high ;
Cost-effective : The required equipment is extremely simple, the control system implemented by the back-end software systems , eliminating the traditional analog surveillance system large number of devices , such as expensive matrix , Quad, switches, network hosts such as video transcoding . As the transmission of images via the network cabling , eliminating the need for a large number of video coaxial cable , reducing costs ;
Security: System set up different levels of user rights , only the most senior authority in order for the user to set or change the entire system , the user is not authorized to receive less than the image. Further , the image data is stored in a proprietary format ;
Use and maintenance: installation of the system is extremely simple to install and use the software system is also very easy to understand . In terms of maintenance , wiring system is very simple, and very high reliability of main equipment, maintenance of good performance , and enables remote maintenance ;
Expansion and extension : When the need to increase the monitoring points and monitoring host , only need to add a video camera or a PC can be through existing networks do not need to do anything to the existing wiring system modifications;
Wide range of applications : regional monitoring, using the Internet to send real-time images, such as offices, buildings , etc. ; spanned remote monitoring , chain business , large factories room, the remote for the elderly , child care, public buildings , no environmental monitoring , financial institutions Branch monitoring, traffic regulation, identification and other false alarms .
Compared with other programs
Compared with the traditional closed- recorded television monitoring system : IP Camera surveillance system without coaxial cable, without the huge video distributor ; software NxN -many ( ie, multiple observers can simultaneously watch multiple camera images ) ; install the required equipment less significantly reduce engineering costs ( the entire installation process is to set up cameras and systems management software installed on a PC ) , significantly reducing the wire ; make full use of network resources , broadband network image transmission using very inexpensive , and enhance the flexibility of the monitoring range can be directly achieve remote monitoring, use of the network to update the software . These are the traditional closed- recorded television systems can not match .
Relative to the current monitoring system: network camera surveillance system requirements for the PC range is reduced to an ordinary configuration ; without software maintenance ; need room, hallway and the environment can be installed in place of the poor ; avoid a crash is like and re- cause defects can not monitor the startup. These are PC- based digital surveillance systems can not match .
Investment Analysis
Based on the monitoring system and the transmission IP Camera surveillance system cost comparisons need to consider many factors. The main factors are monitoring points , the number of sub-control surveillance , monitoring range , video scope , video requirements, alarm requirements.
In comparing the cost of monitoring systems and Network Camera monitoring system based on tradition , there is an important starting point : whether the network cabling and computer included in the cost ? Included in the cost of a very simple reason ; reason not included in the cost of the network cabling and computers are already invested , not monitoring is also needed.
In a building, when monitoring points to reach 50 , the number of monitors to 10 sub-control , the two programs are similar investments ( 350,000 ) . You can see that with the increase in system monitoring points , Network Cameraand surveillance systems on traditional investments is getting close to the final investment will be more than a traditional network camera surveillance system .

From:http://www.vstarcam.com/channel/What-are-the-advantages-of-network-video-surveillance-cameras-400.html
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Network Camera Application Trends

Network Camera Application Trends
Ethernet technology is mature , broadband information network to an Ethernet port extends throughout the building , in addition to providing high-speed Internet access , but also replace the copper cable image transmission lines , real-time video surveillance applications into broadband information network , which making information networks instead of the traditional closing record TV became inevitable.
With digital video compression technology has become more sophisticated , the popularization of the computer , create the conditions for PC-based multimedia monitor . PC- based multimedia surveillance system more powerful , but the main problem to solve small-scale surveillance. When the transmission distance or need Internet , the PC -based multimedia monitor the stability is not good enough , high -power, need someone on duty , open software is not good. This provides a stage for network-based and embedded network video surveillance technology .
Ordinary cameras and IP Camera integrated network converter , convert the image to a TCP / IP network standard data packet , the Network Camera captured images via RJ-45 Ethernet interface directly transmitted to the network through the network to the remote monitor screen .
IP Camera uses the most advanced camera technology and network technology, with powerful features. Built-in software enables true plug and play , so that eliminates the need for users to complex network configurations ; images built-in large capacity memory can store pre-trigger alert ; built-in I / O ports and external communication port for easy expansion peripherals such as: access control systems, infrared sensors , full head ; packages are also available (SDK) to facilitate the user to quickly develop application software.

From:http://www.vstarcam.com/channel/Network-Camera-Application-Trends-399.html

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Network camera image blur what is the reason

Network camera image blur what is the reason
First, if the effect is not very good video surveillance cameras , the basic performance of color reproduction capability , mosaics and many other aspects of snow , but the image blur is likely to be the focus of the lens is not for good , especially the fixed focal length of the product . Manual focus is recommended . If there is not, it is better to change the lens. Dome Infrared Camera and attention to the need to open the enclosure can adjust the lens.
Second, the monitoring target image is too small , not enough due to the lens focal length . Proposed to replace long shot, as previously 6mm lens, 8mm or 12mm to more and so on. But it is worth noting that the larger the lens focal length , angle and range monitoring is also smaller . A fixed focal length lens is the longest focal length 25mm, 25mm lens , if the acquired image is not large enough ( for instance to see fourth word A4 paper ) , only the optical zoom is changed by more than 10 times the camera .
Third, the lack of clarity is also possible that a lower effective pixel image format ,DVR network camera image format can be between D1, HALFD1 and CIF and other image formats to choose from, D1 is the most clear . However, the clearest means occupies more bandwidth and storage space . Future network camera as well as megapixels class products , future cameras will greatly enhance the clarity .
Fourth, the level of resolution IP Camera itself is not enough, there is a general network cameras 420TVL, 480TVL, 520TVL several. The larger the value , the higher the resolution . So if the above three methods are not met demand , only increase the number of lines of the camera .
From: http://www.vstarcam.com/channel/Network-camera-image-blur-what-is-the-reason-396.html

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Analysis on How to Choose Security Megapixel network camera

Analysis on How to Choose Security Megapixel network camera ?
2013 , one million high-definition network surveillance system application will be further expanded , more high-definition network surveillance products have sprung up , most people are not from analog surveillance market scam coming out of HD storm has struck. With so many brands of high-definition IP Camera, we go from here ?
A correct understanding of the "HD " concept
HD network camera , referring to is based on digital technology, network transmission surveillance system camera , monitor and video resolution to reach at least 1280 * 720 ( that is, we often say 720P) or more below the mean for this to be false HD or does not belong to HD . Traditional analog surveillance system to monitor and video resolution Due to technical limitations , the current can only reach D1 (704 * 576) resolution effect, therefore , whether it is the number of analog camera line , are excluded from the scope of definition .
2 , the use of which the best high-definition cameras resolution
Currently , high-definition IP Camera megapixel resolution ranging from 100-1000 , from the perspective of video surveillance applications , the resolution is too low or too high will directly affect the normal use of the system , construction costs , bandwidth , and storage and other aspects of stress. Therefore, the composite price , clarity, and other factors , the 2 million pixel CMOS chip HD network camera, will have a higher price, to better meet the actual needs of the majority of users . But the same 2.0 megapixel camera , the frame rate and resolution will vary, generally 15 , 25 , and 1920 * 1080 and 1600 * 1200 are two, currently on the market is the most widely used 25 1080 1920 * the kind of majority.
3, see the camera's hardware and software features
Generally speaking, a high-performance or high- cost high-definition IP Camera , the face of the diverse needs of market users , hardware, need to have a basic voice monitoring , voice intercom , alarm input and output, 485 control and other common functions, and can access the POE, WIFI, 3G and other application modules to meet the needs of a variety of application environments . Software, should have humane setting , management, operating platform, easy to use , while the software 's features and meet the general needs of large-scale monitoring system application .
4 , the actual application effect and configuration
HD network camera manufacturers in order to facilitate the customers to understand the performance of their products , usually available online demo or video file download services , customers can watch the video by playing practical application effect for a preliminary understanding , and then high-definition wireless ip camera itself is the most important several accessories such as light-sensitive chip, infrared light, lenses, filters, switching devices for consultation, in-depth understanding of the product can be related to performance. Generally of good quality high-definition network camera will use a higher pixel sensor chip manufacturing , infrared light side products used in Taiwan , the lens uses 2 million or 3 million pixel high-end camera, and is equipped with IR cut filter , thereby improving network camera monitoring performance .
5 compatibility
Previously, the majority of high-definition network camera manufacturers are fighting each other , and did not form a unified standard , pour cause different vendors are not compatible front-end and back-end products to use , largely prevented the popularization and application of high-definition network surveillance system pace . Now the major manufacturers and users have been aware of the problem of the lack of industry and the manufacturers are also actively involved in their efforts to develop high-definition network surveillance system interface standards, and through secondary development of more products and other ways to meet the user 's compatible with . Currently, the most widely used high-definition network surveillance system is ONVIF compliant protocol and IP Camera is expected to become a platform for unified management standards . Therefore, high-definition network camera manufacturers should be able to support the latest version of the ONVIF protocol , which is compatible with more use of the product and unified management , to achieve interoperability, data sharing.
6 , the back-end solutions and products and services
A complete set of high-definition network surveillance system includes a front-end video equipment, network transmission, back-end storage , display control , decoding on the wall , a large platform management technologies such applications , the ability to provide total solutions for applications is a measure of a high-definition network surveillance products important criteria supplier . This will require suppliers to have the appropriate technical strength and has a total system solution.
From:http://www.vstarcam.com/channel/Analysis-on-How-to-Choose-Security-Megapixel-network-camera--392.html

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How to Choose Security Megapixel network camera

How to Choose Security Megapixel network camera ?
2013 , one million high-definition network surveillance system application will be further expanded , more high-definition network surveillance products have sprung up , most people are not from analog surveillance market scam coming out of HD storm has struck. With so many brands of high-definition network camera, we go from here ?
A correct understanding of the "HD " concept
HD IP Camera , referring to is based on digital technology, network transmission surveillance system camera , monitor and video resolution to reach at least 1280 * 720 ( that is, we often say 720P) or more below the mean for this to be false HD or does not belong to HD . Traditional analog surveillance system to monitor and video resolution Due to technical limitations , the current can only reach D1 (704 * 576) resolution effect, therefore , whether it is the number of analog camera line , are excluded from the scope of definition .
2 , the use of which the best high-definition cameras resolution
Currently , high-definition network camera megapixel resolution ranging from 100-1000 , from the perspective of video surveillance applications , the resolution is too low or too high will directly affect the normal use of the system , construction costs , bandwidth , and storage and other aspects of stress. Therefore, the composite price , clarity, and other factors , the 2 million pixel CMOS chip HD IP Camera, will have a higher price, to better meet the actual needs of the majority of users . But the same 2.0 megapixel camera , the frame rate and resolution will vary, generally 15 , 25 , and 1920 * 1080 and 1600 * 1200 are two, currently on the market is the most widely used 25 1080 1920 * the kind of majority.
3, see the camera's hardware and software features
Generally speaking, a high-performance or high- cost high-definition network camera , the face of the diverse needs of market users , hardware, need to have a basic voice monitoring , voice intercom , alarm input and output, 485 control and other common functions, and can access the POE, WIFI, 3G and other application modules to meet the needs of a variety of application environments . Software, should have humane setting , management, operating platform, easy to use , while the software 's features and meet the general needs of large-scale monitoring system application .
4 , the actual application effect and configuration
HD network camera manufacturers in order to facilitate the customers to understand the performance of their products , usually available online demo or video file download services , customers can watch the video by playing practical application effect for a preliminary understanding , and then high-definition IP Camera itself is the most important several accessories such as light-sensitive chip, infrared light, lenses, filters, switching devices for consultation, in-depth understanding of the product can be related to performance. Generally of good quality high-definition network camera will use a higher pixel sensor chip manufacturing , infrared light side products used in Taiwan , the lens uses 2 million or 3 million pixel high-end camera, and is equipped with IR cut filter , thereby improving network camera monitoring performance .
5 compatibility
Previously, the majority of high-definition network camera manufacturers are fighting each other , and did not form a unified standard , pour cause different vendors are not compatible front-end and back-end products to use , largely prevented the popularization and application of high-definition network surveillance system pace . Now the major manufacturers and users have been aware of the problem of the lack of industry and the manufacturers are also actively involved in their efforts to develop high-definition network surveillance system interface standards, and through secondary development of more products and other ways to meet the user 's compatible with . Currently, the most widely used high-definition network surveillance system is ONVIF compliant protocol and IP Camera is expected to become a platform for unified management standards . Therefore, high-definition network camera manufacturers should be able to support the latest version of the ONVIF protocol , which is compatible with more use of the product and unified management , to achieve interoperability, data sharing.
6 , the back-end solutions and products and services
A complete set of high-definition network surveillance system includes a front-end video equipment, network transmission, back-end storage , display control , decoding on the wall , a large platform management technologies such applications , the ability to provide total solutions for applications is a measure of a high-definition network surveillance products important criteria supplier . This will require suppliers to have the appropriate technical strength and has a total system solution.
From:http://www.vstarcam.com/channel/How-to-Choose-Security-Megapixel-network-camera--390.html

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Game industry segments homogeneity

Game industry segments homogeneity , IPC getting better
Security industry is undergoing a transition from growing to maturity at the junction of enterprises for their own positioning, core competencies, career development , crisis plan already has a mature decision-making capacity . The industry leader position is difficult to shake. Throughout the entire security industry , we can see that foreign brands still occupy the Chinese market, a tripod country , especially the IPC network camera products. However , domestic brands are more adapt to China 's national conditions , to understand the domestic market, quick response to customer needs , providing customized services . This is the foreign brands can not match advantage. The industry said that in the next few years , domestic brands will become mainstream .
As high-definition video surveillance products in the technology continues to mature and improve the integration of front-end products with richer, more high-definition products began to be used in a variety of security projects . From the Government's safe city , real-time monitoring , management from the mines to the safe operation of chain stores , more and more projects and engineering companies began to use high-definition digital monitoring. From the survey results, in 2013 the IPC network camera Key application areas include commercial buildings , Safe City , finance, schools and so on.
On the other hand , IP Camera development of related technologies mature and led directly to the manufacturing technology continue to lower the threshold , security products market more serious homogenization . According to this application by the end of the survey reflect the current domestic manufacturers have a strong R & D capabilities as not many , and innovative conservation work hard landing, most manufacturers will adopt a trace , copy product development models, and even there are some big brands in this column , coupled with the convergence of the upstream procurement channels , homologous core devices and technologies , product homogeneity is very serious. How to avoid the homogenization of the negative impact on the brand ? Addition to developing innovative products to seize the local conditions of the product design is also very important.
In order to meet the specific needs of different projects , network camera with third-party manufacturers also carry out extensive cooperation in software development company that ISV Partner Program. Through the network camera SDK for software systems open to these companies , the network cameras can be flexibly integrated into various software platforms , such as the trial , online teaching , road to capture more. Even if the user's needs vary widely , but also to the development of different functions for different needs in order to meet the application .
In traditional applications market , IP Camera products due to its easy networking features , you can easily seamlessly with the user's business management system integration. Only done starting from the real needs of the industry to plan products, in order to have more features. From IPC most fundamental attribute analysis , IP Camera is made ​​of optical properties , coding attributes , properties and quality of the network consisting of structural properties , optical properties , and not the lens , do Sensor, mastered only by the ISP's core technology, in order to PK in the image effects to the IPC in the same hardware solutions come to the fore .
From:http://www.vstarcam.com/channel/Game-industry-segments-homogeneity-IPC-getting-better-389.html

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