Ten reasons to buy the
network camera
Security Industry market development so far, the development of the whole system is divided into three stages. The first stage was in 2000 , before that time , or CCTV market , the so-called CCTV is an abbreviation, the first C is closed , and the second C is the loop , TV is a television system . CCTV is a CCTV surveillance system definition . Many of the shortcomings of tape , the most prominent is not conducive to preservation, unlike the current hard disk and CD can hold up to 100 years.
The second stage is from 2000 to 2004 , reaching an analog switching speed mode. A computer , a PC, the bearing pressure and resources are limited . In this system also hosts the video store, play , these are very resource intensive . For example, we often see a bank robbery case , the police in arresting criminals , the image is not clear . Because the image to be collected in this process , Storage. In real-time playback time , only the few resources on video this one . Resulting in a real-time look at the screen when the video recorder and the stuff in the bank saw non-income . So this is why the bank 's surveillance system, can not become a police evidence .
The third stage is from 2005 to today . Most manufacturers are sparing no effort to launch a network video surveillance cameras. Compared to the previous two stages , what are the advantages of network video cameras do ? Here we summarize roughly ten reasons:
First, network surveillance cameras ended interlaced scanning. Analog cameras are in a certain time period, and through the odd and even lines over a camera . Stitching together this time , the image is not clear . For a case , first of all , this interlaced , adding a car snatching people steal a car in the scanned image after amplification is unclear. Through progressive scan images obtained in real time , and finally the police evidence is very clear . This is a network camera development greatest contribution.
Second, as a network monitoring system is concerned , we all need to be integrated wiring , there involves a network power supply problems . Any power required to provide a camera work to make it effective .
Network camera can give our system integrators to provide a POE function , POE powered network means that it 's power , the energy is provided through a network cable synchronization . Traditional analog cameras at least over two lines , the need to carry a power supply. The network camera 's power consumption is relatively small, through the network cable on it. The user can reduce the cost of wiring , thereby reducing the total cost of the project .
Thirdly, the current analog cameras due to physical limits , the image can only reach about 400,000 pixels , which is about 704 × 576. The network camera can get more than 2 million pixel images , such as 1920x1080, 20x CIF image effects. Digital systems and networks can be flexible display device according to the user to adjust the ratio of size , such as 4:3 , 16:9 .
Fourth,
IP Camera and surveillance systems a big selling point , some network camera comes with analysis functions. Analog cameras because the data signal can not be handled by a computer , it is impossible to achieve this function . The network camera with built-in increases the module , by optimizing the image quality , the alarm time , you can get a clear image. For example, the license plate number recognition and so on.
Fifth, the network monitoring system integrates PTZ, P is the horizontal movement , T is vertical movement , Z is a zoom lens , pulling away. An analog camera lens if it is , then , at least three wires , one for power, one is video cable, one is the control line . Webcams these control lines are also transmitted through the network cable , so that everyone can be very direct sense that simplifies cabling .
Sixth , the
network camera in addition to transmit video through the network cable , power supply signals , PTZ control signals , but also interception of audio, the audio can also be transmitted via the network cable , unidirectional, bidirectional , the reverse can be. Analog cameras certainly is not. It is the unilateral acquisition, while the background is conveyed . Then there is the front of the camera with storage network , it has a local store two , one is the network storage . Users can save some of the advance in the network system. This sound can be transmitted to the camera position Reverse broadcast tips.
Seventh, network and information security has been improved . Analog cameras are not encrypted technology , anyone can log on. Network camera has its own video encryption technology, any person entering the system must obtain authorization and authentication . Into the system, what kind of wanted to set different levels have different levels of permissions given to ensure the system 's stability and security.
Eighth, the network video surveillance system that provides a flexible system expansion of space. A simulation system wiring is very heterogeneous . We may have to add a camera to increase the power cable, control cable , audio cable, but the wiring to the engine room when , very troublesome. Its many network camera data signal is transmitted over the network . Image quality is also not particularly impact, and transmitted to the cable about 150 meters , the video signal will be attenuated . If you replace the
network camera , then it is the middle of the network , with the office automation network is the same as the previous network camera provides video capture, and then to the exchange of routing , the background is a network storage . So if you want to add more than one camera , it requires only one network cable into the camera in the system to complete the combination . Its front end is pretty standard network configuration.
Ninth,
network camera system is a true digital solution. Traditional analog cameras capture many times to go through signal switching . Each switching time, the network signal is attenuated . The process of the network is a digital camera , there will be no attenuation of the signal . Network cameras monitoring can be achieved through a wireless signal transmission , PDA terminal device receives . There 's remote diagnostics such as hospitals , the company's teleconferencing, distance learning school can be applied to the
IP Camera digital solutions .
Tenth, lower overall costs. And mixed data to compare , then, the cost of cabling together, every one of us with the price of single-channel analog video systems actually similar. Moreover , the future will bring a lot of scalability . Considering this point , the simulation is very troublesome expansion will increase the number of devices, including wiring and so on. Secondly , the whole use of the international standard transmission protocol and open standards -based management platform, through the second opening , the system has a lot of value-added applications . This solution , in fact, based on pure product than the previous interpretation of a pile of products is much better . To provide users with a holistic solution , its value is opaque. Including the interests of the end user brings obvious.
These are the choices we summarize Ten reasons to
network camera , network cameras digital, networked , intelligent features, it will in the "Green Project" played a significant role in the promotion . Now and in the future belong to the
network camera .
Frome:
http://www.vstarcam.com/channel/Ten-reasons-to-buy-the-network-camera-373.html