HD transmission mode and characteristics in supervision system

With the Networking, high definition, intelligent, integration developing, Supervisory system transmission technology are continues to innovation and upgrading.

As an integral part of the monitoring system, the different transmission modes have different characteristics. Based on the camera's output signal, HD video surveillance has a variety of transmission mode.

HD Web Camera: that adapt the standard Ethernet transmission, the short distance transmission adapt the unshielded twisted pair, the long distance transmission mainly adapt optical fiber or wirelessly. Optical fiber transmission mainly use Ethernet optical fiber transceiver, Ethernet switch, PON and other equipment. Wireless adoption of 3G, 4G, WiFi and WiMAX .

Network transmission is the mainly transmission mode of high-definition video surveillance since it’s have small transmission bandwidth, low cost, flexible networking features character. But at the same time, but the compressed video quality, latency, the clarity of the movement of the process is not so good as non compressed video. So it not suitable for someone has higher requirements of video quality .

HD-SDI cameras: the HD digital component serial interface (BNC interface ), non compression way. Coaxial cable is used for short distance transmission, long transmission distance through fiber, HD-SDI optical equipment. The HD-SDI transmission method can transmission high quality image, high level safety, no latency, it suitable for applications at high requirements both image quality and safety. Due to HD-SDI video transmission bandwidth is 1.485Gbps,  take high bandwidth will add the network cost, at the same time group network also have the limit, only the use of point to point optical fiber transmission.

At present, there has come out a visual lossless coding technology to solve HD-SDI bandwidth problem, which uses an HD-SDI interface , in the transmission of HD video visual lossless coding, that can reduced the bandwidth to 1 / 6 of the original. HD video visual lossless coding can be greatly reduced the cost, single wavelength can support 8 HD-SDI video transmission and networking also support node type transmission.

With the development of technology, combined with the new intelligent analysis technology and cloud storage technology, security will gradually enter the 4K image application. As a high-definition video transmission applications also faced more hardly test, the high-definition network transmission technology requires higher bandwidth , more high chip technology, higher application platform, more demanding work environment, more clear image.

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How to make sure HD transmission effect in supervision system?

Market has come out many kinds of HD transmission method, the aim is transmit audio video and date to the needed place by different carrier, but in this section stable transmission is the key of video monitoring system.

HD monitor is a unified whole, involving a number of aspects of the monitoring system, including front-end video capture, video transmission in the middle, back-end HD storage, display, analysis, linkage and so on. From the point of view of the transmission link, how to ensure that the information clearly and effectively?

Transmission as an integral part of monitoring system , how to ensure the integrity of video and data signals transmission in the project?

Transmission scheme : the above transmission mode has its own characteristics, and construction project system use at the different environment , so the choice conforms to the transmission mode of the project is very necessary. For example: long transmission distance should be choose optical fiber transmission; in the preliminary planning of transmission should considering the issues of the bandwidth, and the issue of the whole system bandwidth, we must detection and confirmation according to the real condition.

Wire section: that’s the essential factors of the system operation is long-term or short-term, for example: the SDI signal transmission, as a serial digital signal on the transmission rate requirements is very high, coaxial cable will be the best carrier of short distance transmission in this project, but coaxial cable has many kinds specifications , so this is a difficult task for select the wire.

Artical from: How to make sure HD transmission effect in supervision system?

Good news: PAKITE hdmi wireless transmitter with hdmi jack is coming soon, and the wireless tv transmitter hdmi is used for the TV device with hdmi port. Waiting for your inquiry about the hdmi wireless transmitter.


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Coming Cable TV Transmitter Receiver with HDMI jack

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Nowadays, PC has become more and more popular and commonly , Cable TV also get influence. but PC would not replace television for ever. Even if most of younger people use iPad watch movie and TV show program, but their also would like place television at living room, it’s family culture, whatever where you are, in China or abroad.

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Cable TV Transmitter also named wireless audio video transmitter, or wireless tv signal transmitter, it’s not only for transmit television signal, it can transmit all of format signal, both digital and analog signal, for tv, cctv camera, dvd, dvr... All can be workable. Cable TV wireless tv signal Transmitter is including one transmitter and one receiver, transmitter connect with tv box and receiver connect with monitor.

Cable TV Transmitter will update HDMI jack soon, if you are interesting in this hdmi wireless transmitter, welcome leave message at www.pakite.net .

Artical from: Cable TV Transmitter with HDMI jack


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