CN101841698A - Long-distance transfer system for video data - Google Patents
Long-distance transfer system for video data Download PDFInfo
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- CN101841698A CN101841698A CN 201010152248 CN201010152248A CN101841698A CN 101841698 A CN101841698 A CN 101841698A CN 201010152248 CN201010152248 CN 201010152248 CN 201010152248 A CN201010152248 A CN 201010152248A CN 101841698 A CN101841698 A CN 101841698A
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Abstract
The invention relates to a long-distance transfer system for video data, which comprises a transmitting terminal, an optical fiber and a receiving terminal, wherein the transmitting terminal is connected with the receiving terminal through the optical fiber; the transmitting terminal converts received video data into video optical fiber signals, transmits the video optical fiber signals to the receiving terminal through the optical fiber, simultaneously converts control optical signals transmitted from the receiving terminal into control signals and outputs the control signals to a camera control terminal; and the receiving terminal converts the video optical fiber signals transmitted through the optical fiber into video data and provides the video data to an external system, simultaneously receives the control signals input by the camera control terminal and converts the control signals into the control optical signals, and then transmits the control optical signals to the transmitting terminal through the optical fiber. The invention realizes non-loss real-time transmission of the video observation data of a telescope, has universality, and is especially suitable for the occasion of long-distance transmission of a Camera link video.
Description
Technical field
The present invention relates to a kind of long-distance transfer system for video data.
Technical background
Camera link protocol transmission speed can reach 2.83Gb/s.Be enough to satisfy of the requirement of current digital camera to big message transmission rate, obtained application more and more widely in high-resolution digital camera field such as Aeronautics and Astronautics, astronomical observations, the occasion that is usually used in the observation of telescope high accuracy, but Camera link agreement transmitting range is short, is not suitable for the remote requirement that transmits of telescope observation data.Adopt data storage technology can not obtain the telescope observation data in real time.
Summary of the invention:
The technical problem to be solved in the present invention provides a kind of long-distance transfer system for video data that can realize that the lossless real-time remote of video observation data transmits.
In order to solve the problems of the technologies described above, long-distance transfer system for video data of the present invention comprises transmitting terminal, optical fiber, receiving terminal; Described transmitting terminal is connected with receiving terminal by optical fiber; Transmitting terminal is converted to the video fiber-optic signal with the video data that receives, and sends to receiving terminal by optical fiber, and the control light signal of simultaneously receiving terminal being sent is converted to control signal and outputs to the camera control end; Described receiving terminal will come the video fiber-optic signal to be converted to video data by Optical Fiber Transmission to offer external system, receive the control signal of camera control end input simultaneously, and send to transmitting terminal by optical fiber after being converted into the control light signal.
Described transmitting terminal comprises the video decode module, first data processing module, a RS232 serial ports, the first smooth modular converter; Video decode module receiving video data is also decoded to it; Decoded data are through first data processing module allotment sequential and be converted to the data format that the first smooth modular converter can receive, and are converted to the video fiber-optic signal through the first smooth modular converter again; Simultaneously, the control fiber-optic signal that is sent by receiving terminal is converted to digital signal through the first smooth modular converter, and this digital signal is converted to serial data by first data processing module, is converted to control signal through a RS232 serial ports again.
Described receiving terminal comprises the second smooth modular converter, second data processing module, the 2nd RS232 serial ports, video encoding module; The video fiber-optic signal is converted to parallel digital signal through the second smooth modular converter, this parallel digital signal is through second data processing module allotment sequential and be converted to the data format that video encoding module can receive, and is encoded to the normal video data through video encoding module again; Simultaneously, the 2nd RS232 serial ports is converted to serial data with the control signal that receives, and this serial data enters the second smooth modular converter through second data processing module and is converted to the optical fiber control signal.
The present invention adopts and at transmitting terminal video data is decoded, decoded data are converted to light signal realize remote the transmission by optical fiber, and be the light signal recompile video data at receiving terminal, realized the lossless real-time transmission of telescope video observation data.The present invention has versatility, is specially adapted to the remote occasion that transmits of Camera link video.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a long-distance transfer system for video data structured flowchart of the present invention.
Fig. 2 is the sending end structure block diagram.
Fig. 3 is the receiving terminal structured flowchart.
Embodiment
As shown in Figure 1, long-distance transfer system for video data of the present invention comprises transmitting terminal 1, optical fiber 3, receiving terminal 5.
As shown in Figure 2, transmitting terminal comprises video decode module 11, the first data processing modules 12, the first smooth modular converter 13, the one RS232 serial ports 14; It is 44M, 28 parallel data that video decode module 11 is responsible for Camera link video data decoding.The video decode module connects first data processing module 12 by 28 parallel-by-bit buses 21, and the 44M of video decode module 11 outputs, 28 parallel data are converted to 88M, 16 parallel data through first data processing module.First data processing module 12 connects the first smooth modular converter by bus 23, and the 88M of first data processing module, 12 outputs, 16 parallel data are converted to the video fiber-optic signal through the first smooth modular converter 13.The first smooth modular converter 13 connects optical fiber 3 by optical fiber interface 19, and the video fiber-optic signal sends to receiving terminal 5 through optical fiber 3.Simultaneously, the control fiber-optic signal that receiving terminal 5 is sent by optical fiber 3 outputs to the camera control end after being converted to control signal by a RS232 serial ports 14 after the first smooth modular converter 13 enters first data processing module 12 and is converted to serial signal.Described video decode module 11 mainly is made of chip DS90CR288 and peripheral circuit thereof; First data processing module 12 adopts the FPGA inside programming to realize; The first smooth modular converter 13 mainly is made up of chip TCK2711A and optical fiber transferring and receiving apparatus; Power interface 17 is the sub-power connector of both-end, and power module 16 is required 3.3V, 1.2V or the 5V voltage of each module with the voltage transitions that power interface 17 provides.18 are the LED indicator light that powers on, and the LED lamp is bright during the system operate as normal.Serial line interface 20 is the DB9 connector, to phase machine controller output RS232 control signal.Optical fiber interface 19 is the fiber-optic SFP connector.Video interface 15 is the MDR26 connector, receives the Cameralink video data.
The Camera link video data encoding of being responsible for receiving is the video fiber-optic signal; Receive the control fiber-optic signal simultaneously, and it is decoded as control signal exports by RS232.RS232 shown in 5 (RS232 interface) module generates standard RS232 rs 232 serial interface signal to (camera control end) output control signal.17 transmitting terminal data processing modules (by FPGA XC3S400-PQ208) connect 3,10 buses, 4 serial datas and 9 digital I signals in this functional module, simultaneously deal with data, allotment sequential.(data processing module 1 is converted to 88M, 16 parallel data with 44M, 28 parallel data) (data processing module 2 is converted to control signal the RS232 serial signal of standard).3 is 16 parallel-by-bit buses, connects transmitting terminal data processing module and light modular converter.The modular converter of light shown in 2 (mainly being made up of chip TCK2711A and optical fiber transferring and receiving apparatus) is converted to optical signal data to parallel data by this module and sends by optical fiber interface.15 provide 3.3V, 1.2V or 5V power supply for each module.13 expression power supplys flow to.16 are the indication of LED power supply, and the LED lamp is bright during the system operate as normal.Wherein 6 is the DB9 connector, externally exports the RS232 control signal; 1 is the fiber-optic SFP connector.12 is the MDR26 connector, receives the Cameralink video data.16 power to system for the sub-power connector of both-end.
As shown in Figure 3, receiving terminal 5 comprises second smooth modular converter 53, the second data processing modules 52, the two RS232 interfaces 54, video encoding module 51; The second smooth modular converter 53 connects optical fiber 3 by optical fiber interface 59, and receiving end/sending end 1 sends the video fiber-optic signal by optical fiber 3; The video fiber-optic signal is converted to 88M, 16 parallel data through the second smooth modular converter 53; Second data processing module 52 comes 88M, 16 parallel data to be converted to 44M, 28 parallel data 53 transmission of the second smooth modular converter; Simultaneously 44M, 28 parallel data are encoded to video data through video encoding module 51 and offer external system; Simultaneously, the RS232 control signal that the 2nd RS232 interface 54 receives from the camera control end, and be transferred to second data processing module 52; Second data processing module 52 is converted to the optical fiber control signal with the data that receive to second smooth modular converter 53, the second smooth modular converters 53 Serial Data Transfer Mode of the 2nd RS232 interface 54 transmission; The optical fiber control signal is transferred to transmitting terminal 1 through optical fiber 3.Video encoding module 51 mainly is made of DS90CR287 and auxiliary circuit, and responsible parallel data is encoded forms Camera link video data.The 2nd RS232 interface 54 receives the RS232 rs 232 serial interface signal of external perimysium reference.Second data processing module 52 is made up of FPGA XC3S400-PQ208 and auxiliary circuit equally.The second smooth modular converter 53 mainly is made up of chip TCK2711A and optical fiber transferring and receiving apparatus.Power interface 57 is the sub-power connector of both-end, and power module 56 is required 3.3V, 1.2V or the 5V voltage of each module with the voltage transitions that power interface 57 provides.58 are the LED indicator light that powers on, and the LED lamp is bright during the system operate as normal.Serial line interface 60 is the DB9 connector.Optical fiber interface 59 is the fiber-optic SFP connector.Video interface 55 is the MDR26 connector.
Claims (2)
1. a long-distance transfer system for video data is characterized in that comprising transmitting terminal (1), optical fiber (3), receiving terminal (5); Described transmitting terminal (1) is connected with receiving terminal (5) by optical fiber (3); Transmitting terminal (1) is converted to the video fiber-optic signal with the video data that receives, and sends to receiving terminal (5) by optical fiber (3), and the control light signal that receiving terminal (5) is sent is converted to control signal and outputs to the camera control end simultaneously; Described receiving terminal (5) will come the video fiber-optic signal to be converted to video data by optical fiber (3) transmission to offer external system, receive the control signal of camera control end input simultaneously, and send to transmitting terminal (1) by optical fiber (3) after being converted into the control light signal.
2. long-distance transfer system for video data according to claim 1 is characterized in that described transmitting terminal (1) comprises video decode module (11), first data processing module (12), a RS232 serial ports (14), the first smooth modular converter (13); Video decode module (11) receiving video data is also decoded to it; Decoded data are through first data processing module (12) allotment sequential and be converted to the data format that the first smooth modular converter (13) can receive, and are converted to the video fiber-optic signal through the first smooth modular converter (13) again; Simultaneously, the control fiber-optic signal that is sent by receiving terminal is converted to digital signal through the first smooth modular converter (13), and this digital signal is converted to serial data by first data processing module (12), is converted to control signal through a RS232 serial ports (14) again; Described receiving terminal comprises the second smooth modular converter (53), second data processing module (52), the 2nd RS232 interface (54), video encoding module (51); The video fiber-optic signal is converted to parallel digital signal through the second smooth modular converter (53), this parallel digital signal is through second data processing module (52) allotment sequential and be converted to the data format that video encoding module (51) can receive, and is encoded to the normal video data through video encoding module (51) again; Simultaneously, the 2nd RS232 interface (54) is converted to serial data with the control signal that receives, and this serial data enters the second smooth modular converter (53) through second data processing module (52) and is converted to the optical fiber control signal.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244543A (en) * | 2011-06-13 | 2011-11-16 | 中国科学院长春光学精密机械与物理研究所 | Digital optical terminal with Base-mode Camera Link interface |
| CN102523436A (en) * | 2011-11-30 | 2012-06-27 | 杭州海康威视数字技术股份有限公司 | Transmission terminal, receiving terminal, multi-channel video optical fiber transmission system and multi-channel video optical fiber transmission method |
| CN104581095A (en) * | 2014-12-26 | 2015-04-29 | 北京航天控制仪器研究所 | Camera Link video optical transceiver |
| CN104581096A (en) * | 2014-12-26 | 2015-04-29 | 北京航天控制仪器研究所 | Multiplexing video transmission optical transmitter and receiver |
| CN104618697A (en) * | 2015-01-28 | 2015-05-13 | 中国科学院光电技术研究所 | FPGA-based full-configuration Camera link optical fiber real-time image optical transceiver |
| CN104660989A (en) * | 2015-01-28 | 2015-05-27 | 中国科学院光电技术研究所 | Optical fiber-to-full configuration type Camera link real-time image optical transceiver based on FPGA |
| WO2020041938A1 (en) * | 2018-08-27 | 2020-03-05 | 西安诺瓦电子科技有限公司 | Display control system |
| CN114143135A (en) * | 2021-11-17 | 2022-03-04 | 天津市英贝特航天科技有限公司 | Remote data transmission device, system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102244543A (en) * | 2011-06-13 | 2011-11-16 | 中国科学院长春光学精密机械与物理研究所 | Digital optical terminal with Base-mode Camera Link interface |
| CN102523436A (en) * | 2011-11-30 | 2012-06-27 | 杭州海康威视数字技术股份有限公司 | Transmission terminal, receiving terminal, multi-channel video optical fiber transmission system and multi-channel video optical fiber transmission method |
| CN102523436B (en) * | 2011-11-30 | 2014-01-15 | 杭州海康威视数字技术股份有限公司 | Transmission terminal, receiving terminal, multi-channel video optical fiber transmission system and multi-channel video optical fiber transmission method |
| CN104581095A (en) * | 2014-12-26 | 2015-04-29 | 北京航天控制仪器研究所 | Camera Link video optical transceiver |
| CN104581096A (en) * | 2014-12-26 | 2015-04-29 | 北京航天控制仪器研究所 | Multiplexing video transmission optical transmitter and receiver |
| CN104618697A (en) * | 2015-01-28 | 2015-05-13 | 中国科学院光电技术研究所 | FPGA-based full-configuration Camera link optical fiber real-time image optical transceiver |
| CN104660989A (en) * | 2015-01-28 | 2015-05-27 | 中国科学院光电技术研究所 | Optical fiber-to-full configuration type Camera link real-time image optical transceiver based on FPGA |
| CN104618697B (en) * | 2015-01-28 | 2017-11-24 | 中国科学院光电技术研究所 | FPGA-based full-configuration Camera link optical fiber real-time image optical transceiver |
| CN104660989B (en) * | 2015-01-28 | 2018-02-13 | 中国科学院光电技术研究所 | Optical fiber-to-full configuration type Camera link real-time image optical transceiver based on FPGA |
| WO2020041938A1 (en) * | 2018-08-27 | 2020-03-05 | 西安诺瓦电子科技有限公司 | Display control system |
| CN114143135A (en) * | 2021-11-17 | 2022-03-04 | 天津市英贝特航天科技有限公司 | Remote data transmission device, system and method |
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Open date: 20100922 |