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  • IP camera standing on the shoulders of traditional analog cameras

        In the surveillance market , network monitoring has been a controversial topic, the demand in terms of development , the advantages of network monitoring is unmatched analog monitor . But analog surveillance has been reluctant to everyone under the city also attracted more reflection , and for users, inexpensive analog cameras , IP video camera expensive, two-phase balance, many users are directed price advantage made ​​a decision, this is often the analog breakout space where the camera .
        The difference between analog cameras and IP camera in here? I believe we literally can arrive at a general definition, which is can be networked IP camera , analog cameras can not , and the specific differences and how ?
        First, to clarify the concept :
        Interlaced analog front-end camera CMOS / CCD light sensor converts the optical signal into an analog electrical signal , and then output to DSP, the DSP for A / D conversion and color adjustment processing do D / A converter modulated PAL / NTSC standard TV signal output.
        IP surveillance camera is a combination of analog cameras and network technology to produce a new generation of cameras , built an embedded chip , embedded real-time operating system . After the video camera sends a signal to the efficient compression of digital compression chip , to the Web server via the network bus , an authorized user through the IP-based network scale infrastructure in place to achieve a local or remote viewing , the video data storage and management .
        Second, the performance of the big differences:
        First, the definition . See more clearly the goal is for each user , but also the ultimate mission of the security industry . IP camera with analog cameras currently clarity can not be compared. At present , network surveillance camera can already reach millions , 2000000 , 5000000 or even ten million pixel image output, and analog cameras only image output CIF, D1 ´s .
        Second, management differences. IP camera built- WEB, WEB scale using a browser on a PC , you can manage and view images. Meanwhile , IP camera also enables remote management and image viewer , and image data exists on a remote hard drive, easy to find , easy to store, will not be destroyed ; while analog cameras , relatively speaking system is blocked , only internal look, not remote monitoring , video data can only be stored locally , not remotely view , criminals can easily be destroyed .
        Third , integration . IP camera built-in operating system , using any scale WEB browser on a PC , you can manage and view images, and can be shared multi-screen management software , multi-channel monitoring, unrestricted ones , no additional hardware the capital ; while analog cameras will have connected with DVR, DVR large ones have certain limitations , then the DVR is full, the camera also increased in increased hardware costs.
        Fourthly, the installation of the camera . IP camera simply connect it to the nearest network and assign an IP address can be. It can use existing network as a delivery platform , do not go to the wiring ; need to coax and analog cameras connected to each camera , and connect to the control platform , video equipment, display devices , all the way to be rewired for each additional and there is no ready-made network can be utilized.
        Fifth, the remote monitoring is achieved. IP camera can be remotely managed , such as video settings, PTZ control, alarm setting , two-way intercom, upgrade management and other functions ; analog camera images can only be viewed in the local management.
        Sixth, the funds spent . Spend IP camera for high-quality network cable is usually 30% to 40% less than the same scale of the coaxial cable , a cable can support hundreds of IP camera and other equipment ; and each analog camera requires a cables are connected , if you have multiple cameras , it is necessary to buy a lot of cables and these cables are designed for installation and deployment of money , in general, higher labor and maintenance costs .
        Conclusion :
        By comparing the above aspects can be seen , IP camera in many respects superior to analog cameras , but it is not absolute, higher IP camera to the requirements of the external environment , requires a very strict network environment, and China many parts of the network environment , there are still a number of delays, disconnection, congestion problems, in this case , the advantages of analog cameras have surfaced , so for users in addition to considering their own needs , they also have a reasonable assessment of their own the environment , to avoid unnecessary losses .