ASIC that Application Specified IC, that is specifically ip camera
surveillance camera tailored for the application purpose integrated circuits, therefore , based on DVR video ASIC more compact structure , the performance will be improved. However, due to the structure of ASIC often need to refer to the new algorithm successfully transplanted on DSP , therefore , for the same compression format ( such as H.264) DVR 's available time , the ASIC-based DVR usually late in DSP-based the DVR.
Network DVR NVR is currently in China is still in its initial concept to confirm trial promotion stage. In fact, I can place NVR DVR can be used, there are some differences in the actual application , network facilities to improve the place with NVR more, had no network rollout , inconvenient to use NVR. DVR in the vast majority of applications where analog cameras , the resolution is less than or equal to D1. NVR is mainly used in the field of distributed storage networks , IP cameras and high-resolution occasions ( megapixels ) .
In the long run , NVR will be more advantages than the DVR , reflected in the ability to make full use of network resources , deployment simplicity and flexibility of the system , you can expect superior performance , reflecting aspects such as intelligence . It is the initial stage of NVR from technology products is not insurmountable difficulties, but because of the high maturity DVR application , and also to the primary direction of the development of the network , for example, appear DVR / NVR products , NVR standardization has not been completed and other reasons , NVR security systems
ip camera system as well as to become a mainstream alternative to the difficulty , NVR and DVR will coexist for a long last two years .
5 Applications Editor security camera system
Video surveillance systems development for decades, in recent years, traditional analog systems to digital at a rapid pace , network evolution and intelligent monitoring systems . Surveillance video recording devices are also the first generation of tape recorders, the second generation of Digital Video Recorder (DVR), a third -generation hybrid Digital Video Recorder (H-DVR) gradually over to the fourth generation is now the hottest Network DVR (NVR).
DVR access to analog video signals into digital video data and video storage , video data is easy to store , supports random queries, easy to copy , easy operation and maintenance , etc. , favored by the users ; H-DVR DVR inherited advantage , while increasing network video access and remote network management capabilities, but still is an analog video surveillance system to a fully networked digital video surveillance system to promote the product .
Network DVR NVR rid of the H-DVR embarrassing situation , accelerated networking, high-definition and process platform video surveillance system . Since no direct access to network camera
NVR Recorder analog video signal from the video signal fundamentally avoided by the internal components of electromagnetic signals affect image quality surroundings and equipment , while the center and front-end device deployment location is no longer limited by the cable length.
Post je objavljen 04.06.2014. u 08:18 sati.