2013年10月29日星期二

Megapixel network camera for engineering burdens

Megapixel network camera for engineering burdens
Q : Millions of high-definition monitor , you also need video capture card?
A: No , the digital Megapixel network camera network output is the result of MPEG-4 or H264 algorithms such as compressed digital video , video capture card is the main function of the analog signal into a digital signal , cross the DSP or CPU , etc. processor compression, so one million high-definition monitor , the backend does not require video capture card , do not need to compress .
Q: What is digital-analog hybrid DVR card ?
A: The digital-analog hybrid DVR card , that is not only connected to analog cameras , and also can accept digital HDIP Camera video signals, analog video into digital video and through high-definition digital video displayed on the same software interface to achieve a unified display , manage and playback functions. All current video capture card, has been fully upgraded to one million high-definition digital and analog hybrid DVR card, while prices remained unchanged.
Q: Megapixel IP camera analog cameras will encounter a similar electromagnetic interference troubles ?
A: No, one million high-definition digital video, digital compressed video output , the transmission process is not susceptible to electromagnetic interference , to overcome the conventional analog monitor vulnerable to interference troubles. Therefore, high-definition digital video camera screen cleaner million .
Q: Megapixel IP cameras over the network , as far as how many meters ?
A: The direct connection to the farthest is generally recommended as 150 meters , more than 150 meters , can be extended through the switch , and the switch can be a sliding scale , which extends to the longer distances , while distances of up to one thousand meters above , you can use optical switches ( fiber transceiver) extends . Since fiber optic transceivers than analog video transmission using Optical cheap, so millions of high-definition monitor cost savings .
Q: Megapixel IP Camera POE power supply if used , is reliable ?
A : POE power supply, is already a very mature technology, already on the market through long-term verification , it has to be investigated is not a new technology , so fundamental to worry about . POE power supply network , the voltage is 48V, reach the camera, turn the camera into the operating voltage .
From:http://www.vstarcam.com/channel/Megapixel-network-camera-for-engineering-burdens-335.html

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