Two-interface image incompressible optical fiber transmission and display device
An optical fiber transmission, non-compression technology, applied in the field of data transmission, can solve the problems of real-time processing and display of large data volume uncompressed image low-latency transmission, etc.
Inactive Publication Date: 2019-01-11
TIANJIN JINHANG INST OF TECH PHYSICS
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[0005] The present invention proposes a two-interface image non-compressed optical fiber transmission and display device to solve the technical problems of how to realize simultaneous reception of infrared and visible light image data, low-delay transmission of large data volume non-compressed images and real-time processing and display of remote images
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[0042] Visible light imager outputs 3G-SDI digital images with image resolution of 1920*1080, bit width of 24bit, frame frequency of 50Hz, and uncompressed data volume of 2.3210Gbps;
[0043] Infrared imager outputs LVDS digital images with image resolution of 640*512, bit depth of 14bit, frame frequency of 50Hz, and uncompressed data volume of 0.22Gbps;
[0044] The SDI deserializer uses TI's LMH0341;
[0045] The SDI encoder is LMH0340 from TI Company;
[0046] The LVDS deserializer uses MAX9248 from MAXIM Company;
[0047] FPGA selects 5CSXFC6D6F31I7N from ALTERA company;
[0048] The photoelectric module selects Zhonghang Optoelectronics HTS2301-AF;
[0049] The above-mentioned visible light image and infrared image are transmitted by the device of this embodiment for 1km. The whole frame delay of the visible light image is 17.8us, and the whole frame delay of the visible light image is 16us, and the delay is far less than the image frame period of 20ms. It can be inpu...
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The present invention belongs to the technical field of data transmission, and especially relates to infrared and visual light image incompressible optical fiber transmission and display device with two interfaces consisting of an SDI and a LVDS. Aiming at the defects that the current image optical fiber transmission device is single in image input interface, poor in expansibility and large in compression loss, the present invention provides an infrared and visual light image incompressible optical fiber transmission and display device with two interfaces consisting of an SDI and a LVDS. The device has two interfaces consisting of an SDI and a LVDS, the FPGA completes incompressible image data receiving and transmitting, arrangement and coding and decoding, a high-rate photovoltaic moduleachieves photovoltaic signal conversion and then optical fiber transmission, and finally, the SDI interface is employed to output for image processing and display. The device employed by the inventioncan reduce the image processing capacity requirement of a front-end imager, can achieve remote real-time image processing and display, can improve the system design and laying flexibility, can reducethe number of optical fiber transmission devices in the system, can simplify the system cable connection and can save the development cost.
Description
technical field [0001] The invention belongs to the technical field of data transmission, and in particular relates to a non-compressed optical fiber transmission and display device for SDI and LVDS two-interface infrared and visible light images, which is especially suitable for long-distance transmission, processing and processing of infrared and visible light high-resolution and large-scale image data. Show applications. Background technique [0002] Optical fiber communication has many advantages such as low transmission loss, long distance, anti-electromagnetic interference, high confidentiality, etc., and has been widely used in military and civilian fields. [0003] At present, optical fiber transmission devices used in the field of image transmission mainly focus on visible light images in commonly used color spaces. In the existing image optical fiber transmission device, the sending equipment and the receiving equipment adopt a single type of interface. In order ...
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IPC IPC(8): H04N7/22H04N7/18
CPCH04N7/18H04N7/22
Inventor 王东张美生杨晶张旭
Owner TIANJIN JINHANG INST OF TECH PHYSICS