IP Camera intelligent analysis simulation system by pre- DVR

IP Camera intelligent analysis simulation system by pre- DVR
Known network surveillance camera comes with intelligent analysis, video analysis will lead to the front end devices, faced with an emergency alarm function can be the first to respond . And network probe is different, analog cameras through the backend DVR determine whether the illegal invasion behavior. Targeted at two different authors make a comparative analysis .
In the video surveillance system, analog cameras seems to give a kind of " integration " feeling , cameras and sensors and other components are wrapped in a small space , if you want to change a different focal length of the camera , probably have to " disassemble " Replacement ; the network camera lens and machine identity to leave, different focal length lens replacement is very convenient.
Then we say that the appearance of the core network surveillance cameras have been able to support video analysis function, the reason is that open platform . With the camera chip performance increases , there will be more chip resources are being developed, so that more intelligent analysis of IT elements embedded into the front-end devices, but also allow more third-party software is compatible with video analysis , to select multiple intelligences .
Webcams intelligent analysis simulation system by pre- DVR
Simulation system is a closed structure, the current terminal equipment can not meet , they can only be transferred to the back-end intelligence analysis capabilities DVR storage system , based on the embedded Linux system DVR the same as the open-source structure can be implanted in a different mode of analysis , through the video will be transmitted to the front-end integration and analysis.
Front-end and back-end analysis of comparative analysis of the time
Front-end Network Camera supports intelligent analysis , simulation system for the back-end analysis, one before and one after the contrast in theory be able to separate the order. In the front can make the appropriate intelligent analysis , just put analyze the results of treatment can be spread to the back-end platform ; while the back-end analysis needs to be spread throughout the DVR video images , and then have spread to resolve DVR platform , although the processing speed quickly, but will inevitably cause some of the time difference .
Maybe in a small monitoring projects, insufficient backend intelligence analysis as " inferior " , but in the important financial areas or large-scale monitoring , the race against the significance came to the fore .
Intelligent Network Camera Support SD card storage of pre-
Turning to the merits , in fact, both have equal shares . In the design , IP Camera must support intelligent front end storage capabilities. Maybe someone in coursing , IPC supports SD card memory can save a back-end storage fee. In fact, this view is wrong , SD card storage solution is only a secondary role : network failure , end alarm when needed SD card storage ; but its drawback is that is not conducive to a wide range of video management .
Intelligent analysis and detection Network Camera
Front storage space is limited, so the codec requirements are very stringent. I 've learned in the H.264 codec in , High profile main application and network systems , most of the DVR video recorder also uses standard Main profile . Unzip the different patterns also reflect the effect of the final image generation .
Simulation system intelligent analysis " rear " to ensure the stability of the system , compared with the pre- IP system intelligence for emergencies lag really have an impact . According to different application areas choose a different trigger modes. Difficult to weigh the pros and cons of the case , SD card storage can go long , the future analog cameras can embed intelligent modules , which are still unknown .
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