System and method for transmitting and recording four channels of standard definition video signals
A video signal and high-definition video technology, which is applied in the field of video signal transmission and recording, can solve the problems of inconvenient installation and management, too many devices at the receiving end, and high cost, so as to reduce the failure rate, management and maintenance costs, installation and wiring costs and Effect of hardware cost
Active Publication Date: 2012-01-25
BEIJING ITSYNC TECH
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[0006] In view of this, the main purpose of the present invention is to provide a system and method for transmitting and recording four-channel standard-definition video signals, to solve the problems existing in the prior art Problems such as inconvenient installation and management, high cost, etc.
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[0051]The basic idea of the present invention is to multiplex four channels of standard-definition video signals into one channel of high-definition video signals by means of synchronous time-division multiplexing for transmission, use a high-definition acquisition unit to collect at the receiving end, and then under the control of computer software, Internally, four channels of standard-definition video data can be separated from the acquired high-definition video data.
[0052] The implementation of the present invention will be described in detail below with reference to the drawings and in combination with the embodiments.
[0053] image 3 A system block diagram for transmitting and recording four channels of standard definition video signals according to an embodiment of the present invention is shown. like image 3 As shown, the system includes: a multiplexing module 31, a transmission module 32, a recording module 33, and a storage module 34, wherein the multiplexi...
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The invention discloses a system for transmitting and recording four channels of standard definition video signals. The system comprises a multiplexing module, a transmission module, a recording module, a standard definition recording unit and a storage module, wherein the multiplexing module is used for multiplexing the input four channels of standard definition video signals into one channel ofhigh definition video signal by time division; the transmission module is used for transmitting the one channel of high definition video signal after time division multiplexing to the recording module; the recording module comprises a high definition acquiring unit and a standard definition recording unit, wherein the high definition acquiring unit is used for acquiring the one channel of transmitted high definition video signal so as to acquire high definition video data; the standard definition recording unit is used for separating four channels of standard definition video data from the acquired high definition video data; and the storage module is used for storing the four channels of separated standard definition video data. The invention also discloses a method for transmitting and recording four channels of standard definition video signals. With the system and the method disclosed by the invention, the installation wiring cost and the hardware cost can be greatly reduced, and further the failure rate and the management and maintenance cost of equipment can be reduced.
Description
technical field [0001] The present invention relates to the field of video signal transmission and recording, and more specifically, to a system and method for transmitting and recording four-way standard-definition video signals. Background technique [0002] In the fields of video monitoring, video conferencing, teaching video recording, etc., it is often necessary to transmit and record multi-channel (eg, four-channel) standard-definition video signals. [0003] like figure 1 As shown, the most direct method for long-distance transmission and recording of multi-channel (taking four-channel as an example) standard-definition video signals is to use four-channel transmission media to transmit four-channel standard-definition video signals respectively. , and then use four standard-definition recording devices to collect and record corresponding standard-definition video signals, and finally store the four-way standard-definition video signals on different storage media. F...
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IPC IPC(8): H04N7/52H04N7/01
Inventor 王海洋蔡娅李晓宁
Owner BEIJING ITSYNC TECH