CN105680938A - High-definition video fiber transmission self checking method and device - Google Patents
High-definition video fiber transmission self checking method and device Download PDFInfo
- Publication number
- CN105680938A CN105680938A CN201610189025.XA CN201610189025A CN105680938A CN 105680938 A CN105680938 A CN 105680938A CN 201610189025 A CN201610189025 A CN 201610189025A CN 105680938 A CN105680938 A CN 105680938A
- Authority
- CN
- China
- Prior art keywords
- fault
- video
- output
- point
- test point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
Abstract
The invention relates to a high-definition video fiber transmission self checking method and a device, which belong to the technical field of optical transmission. Through setting a corresponding fault detection point in a high-definition video fiber transmission system, fault determination is carried out on the set fault detection point according to a fault determination basis for the fault detection point; and finally, a fault determination result is outputted according to a set system fault output mode, and thus detection and positioning on the high-definition video fiber transmission fault can be realized. The fault part during the high-definition video fiber transmission process can be conveniently, quickly and accurately determined, the fault can be detected and positioned in no need of various professional devices, the testing process is flexible, and the fault point and the fault output mode can be flexibly set according to requirements of actual test.
Description
Technical field
The present invention relates to a kind of HD video fiber-optic transfer self checking method and device, belong to optical transport technology field.
Background technology
Current HD video (HDMI, DVI and VGA) class fax transfer device, signal transmitted data amount is big and speed is high, and along with the increase of distance, the decay of signal high fdrequency component is huge, therefore limited transmission distance, fiber medium is generally adopted for transmission at a distance and carries out. A set of high-resolution video transfer system is made up of transmitter (A), receiver (B) and optical fiber medium medium (C), as shown in Figure 1. And high-resolution video transfer system is once break down, need to detect by means of the equipment of the various specialties such as oscillograph, light power meter signal source, can not quickly positioning, waste plenty of time and energy go investigation problem and location fault successively again, are unfavorable for plant maintenance.
Summary of the invention
It is an object of the invention to provide a kind of HD video fiber-optic transfer self checking method and device, with solve current video fibre-optic transmission system (FOTS) energy fault detect need to by professional equipment, it is impossible to the problem quickly positioning fault.
The present invention solves that above-mentioned technical problem provides a kind of HD video fiber-optic transfer self checking method, this self checking method comprises the following steps:
1) corresponding fault detecting point is set in HD video fibre-optic transmission system (FOTS);
2) fault verification is carried out according to the fault verification of fault detecting point according to the fault detecting point arranged;
3) failure determination result is exported according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault.
Described step 1) in arrange fault detecting point at least include HD video input Data Detection point, transmitting terminal core processing module test point, transmitting terminal photoelectric conversion module test point, optical cable medium test point, receiving terminal photoelectric conversion module test point, receiving terminal core processing module test point and HD video output Data Detection point in one.
Step 2) in the fault verification of HD video input Data Detection point and HD video output Data Detection point according to being: judge in video data, whether row, field signal (H, V) sequential meet VESA standard; Transmitting terminal core processing module test point is with the fault verification of receiving terminal core processing module test point foundation: judge that whether the sequence that the handshake of its sent fixed sequence program receives with self is consistent; The fault verification of transmitting terminal photoelectric conversion module test point and receiving terminal photoelectric conversion module test point is according to being: reads, by I2C interface, the optical module state meeting SFF8472 agreement and judges the state of its circuit; The fault verification of optical cable medium is according to being: indicates pin LOS pin to lose light instruction according to optical link and judges.
Described step 3) in the system failure way of output at least include fault video output, malfunction report output and display lamp output in one.
The described fault video way of output refers to and defines image output according to malfunction combination and classification, the fault video output of transmitter must arrange corresponding fault video output interface on the transmitter, and the fault video output of receiver is available for the video output of receiver.
Present invention also offers a kind of HD video fiber-optic transfer self-checking unit, this self-checking unit includes fault detection module and fault output module, described fault detection module for arranging corresponding fault detecting point in HD video fibre-optic transmission system (FOTS), and the fault verification according to fault detecting point carries out fault verification according to the fault detecting point arranged, described fault output module is for exporting failure determination result according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault.
Described fault detection module arranges fault detecting point and at least includes in HD video input Data Detection point, transmitting terminal core processing module test point, transmitting terminal photoelectric conversion module test point, optical cable medium test point, receiving terminal photoelectric conversion module test point, receiving terminal core processing module test point and HD video output Data Detection point.
The fault verification of HD video input Data Detection point and HD video output Data Detection point is according to being: judge in video data, whether row, field signal (H, V) sequential meet VESA standard; Transmitting terminal core processing module test point is with the fault verification of receiving terminal core processing module test point foundation: judge that whether the sequence that the handshake of its sent fixed sequence program receives with self is consistent; The fault verification of transmitting terminal photoelectric conversion module test point and receiving terminal photoelectric conversion module test point is according to being: reads, by I2C interface, the optical module state meeting SFF8472 agreement and judges the state of its circuit; The fault verification of optical cable medium is according to being: indicates pin LOS pin to lose light instruction according to optical link and judges.
The system failure way of output that described fault output module adopts at least includes fault video output, malfunction reports the one exported and in display lamp output.
The described fault video way of output refers to and defines image output according to malfunction combination and classification, the fault video output of transmitter must arrange video output interface of applauding accordingly on the transmitter, and the fault video output of receiver shares the video output of receiver.
The invention has the beneficial effects as follows: the present invention, by arranging corresponding fault detecting point in HD video fibre-optic transmission system (FOTS), carries out fault verification according to the fault verification of fault detecting point according to the fault detecting point arranged; Finally failure determination result is exported according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault. The present invention can judge the faulty component of HD video fiber-optic transfer process easily and fast accurately, the detection to fault and location can be realized without various professional equipments, and test process is relatively more flexible, can need to arrange trouble point and the fault way of output flexibly according to reality test.
Accompanying drawing explanation
Fig. 1 is that HD video fiber-optic transfer self-inspection of the present invention realizes theory diagram;
Fig. 2-a is transmitter self-looped testing principle schematic;
Fig. 2-b is receiver self-looped testing principle schematic;
Fig. 3 is high-resolution video transfer system pairing test connection diagram;
Fig. 4 is HD video long-distance transmissions device systems block diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
A kind of embodiment of the HD video fiber-optic transfer self checking method of the present invention
The self checking method of the present invention is directed to HD video fibre-optic transmission system (FOTS), as shown in Figure 1, including transmitter A, receiver B and optical fiber C, communicated to connect by optical fiber C between transmitter A and receiver B, transmitter A mainly includes video input and detection module, core processing module and electrooptic conversion module, receiver B mainly includes photoelectric conversion module, core processing module and video frequency output and detection module, for realizing the fault detect to this transmission system, the present invention by arranging corresponding fault detecting point in HD video fibre-optic transmission system (FOTS), fault verification according to fault detecting point carries out fault verification according to the fault detecting point arranged, finally failure determination result is exported according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault. the method to implement process as follows:
1. corresponding fault detecting point is set in HD video fibre-optic transmission system (FOTS).
Arranging fault detecting point according to the fault being likely to occur in high-resolution video transfer system, the present invention arranges fault detecting point and at least includes in HD video input Data Detection point, transmitting terminal core processing module test point, transmitting terminal photoelectric conversion module test point, optical cable medium test point, receiving terminal photoelectric conversion module test point, receiving terminal core processing module test point and HD video output Data Detection point. Fault detecting point to arrange comparison flexible, test needs according to reality and be configured.
2. carry out fault verification according to the fault verification of fault detecting point according to the fault detecting point arranged.
The fault verification of HD video input Data Detection point and HD video output Data Detection point is according to being: judge row in video data, field signal (H, V) sequential whether compound VASE standard; Transmitting terminal core processing module test point is with the fault verification of receiving terminal core processing module test point foundation: judge that whether the sequence that the handshake of its sent fixed sequence program receives with self is consistent; The fault verification of transmitting terminal photoelectric conversion module test point and receiving terminal photoelectric conversion module test point is according to being: reads, by I2C interface, the optical module state meeting SFF8472 agreement and judges the state of its circuit; The fault verification of optical cable medium is according to being: indicates pin LOS pin to lose light instruction according to optical link and judges.
3. failure determination result is exported according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault.
The system failure way of output of the present invention includes fault video output, malfunction reports output and display lamp output. Wherein fault video output refers to according to malfunction combination and classification, definition image output, such as the order of different colours striped or define different malfunction coefficient colors etc., thus judging trouble point, for transmitter, must setting up a fault video output interface on the transmitter, for receiver, the interface of fault video output can adopt receiving terminal video output. Malfunction reports the way of output to refer to according to malfunction combination and classification, is encoded by the mode such as Asynchronous Serial Interface, network interface and is uploaded to host computer. The display lamp way of output refers to according to malfunction combination and classification, distinguishes different trouble points by indicator light colors with state. Actual process of self-test can adopt the one in the said system fault way of output.
The method both can realize equipment self-looped testing, it is possible to realizes pairing test. Wherein equipment self-looped testing refers to the test of transmitter and receiver in HD video fibre-optic transmission system (FOTS), including transmitter self-looped testing and receiver self-looped testing, the fault of input video, transmitting terminal core processing module, transmitting terminal electric light revolving die block and optical link can be tested by transmitter self-looped testing, as shown in Fig. 2-a, the fault way of output can adopt the one in video frequency output, state reporting and display lamp. When adopting video frequency output mode, corresponding video output interface must be set on transmitter, possess fault output and the output of video loopback; When adopting the state reporting way of output, host computer can be connected to by the Asynchronous Serial Interface on transmitter or network interface; Adopt and can distinguish different trouble points by indicator light colors or state during the display lamp way of output. Receiver self-looped testing includes output video fault, receiving terminal core processing module fault, receiving terminal photoelectricity are turned one or more the fault test in module failure and optical link fault, as shown in Fig. 2-b, the fault way of output can adopt the one in video frequency output, state reporting and display lamp, when adopting video frequency output mode, the video output interface that receiver itself carries can be adopted to export video fault-signal. System pairing test carries out whole system test, covers all functions tested oneself, as shown in Figure 3.
A kind of embodiment of the HD video fiber-optic transfer self-checking unit of the present invention
The self-checking unit of the present invention includes fault detection module and fault output module, fault detection module for arranging corresponding fault detecting point in HD video fibre-optic transmission system (FOTS), and the fault verification according to fault detecting point carries out fault verification according to the fault detecting point arranged, fault output module is for exporting failure determination result according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault. The means that implement of fault detection module and fault output module have been described in detail in the embodiment of method, repeat no more here.
It is described in detail for the failure detector of HD video fibre-optic transmission system (FOTS) in Fig. 4 below. This HD video fibre-optic transmission system (FOTS) includes sending optical transmitter and receiver and receiving optical transmitter and receiver, according to BIT detection method, in its corresponding detecting device, fault detection module arranges main trouble point and is: video input unit, transmitting terminal FPGA processing unit, optical link, receiving terminal FPGA processing unit and video output unit, by testing oneself and system test simplification test combination, cover trouble point. Fault output module adopts video frequency output mode, therefore must arrange a video output interface to realize the output of transmitting terminal fault video on transmission optical transmitter and receiver.
The transmission optical transmitter and receiver of the present embodiment is divided into following four module: video encoding module, Video decoding module, FPGA processing module and optical module; Receive optical transmitter and receiver and be divided into three below module: optical module, FPGA processing module and video encoding module. The high-definition video signal of input is decoded by the Video decoding module launching optical transmitter and receiver, decoded data are sent into FPGA processing module, FPGA transfers high-speed serial data to and sends into optical module circuit after decoded data are processed, optical module circuit conversion is that optical signal is sent to receiving terminal by optical fiber, the data after video encoding module processes is exported by video encoding module by FPGA processing module at transmitting terminal simultaneously. The optical signal received is converted to high-speed electrical signals by the optical module circuit receiving optical transmitter and receiver, then will be processed by FPGA processing module, and the data after process are exported by video encoding module. Transmitter and receiver fpga core processing unit is internally integrated eight rank colour bar signal generation modules, it is sequentially output color fringe black, blue, green, blue or green, red, purple, yellow, white, the difference of the trouble point according to definition, carry out failure definition by the order and width changing colour bar color, reach fault location fast and accurately by color intuitively and width of fringe.
Claims (10)
1. a HD video fiber-optic transfer self checking method, it is characterised in that this self checking method comprises the following steps:
1) corresponding fault detecting point is set in HD video fibre-optic transmission system (FOTS);
2) fault verification is carried out according to the fault verification of fault detecting point according to the fault detecting point arranged;
3) failure determination result is exported according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault.
2. HD video fiber-optic transfer self checking method according to claim 1, it is characterized in that, described step 1) in arrange fault detecting point at least include HD video input Data Detection point, transmitting terminal core processing module test point, transmitting terminal photoelectric conversion module test point, optical cable medium test point, receiving terminal photoelectric conversion module test point, receiving terminal core processing module test point and HD video output Data Detection point in one.
3. HD video fiber-optic transfer self checking method according to claim 2, it is characterized in that, step 2) in the fault verification of HD video input Data Detection point and HD video output Data Detection point according to being: judge in video data, whether row, field signal (H, V) sequential meet VESA standard; Transmitting terminal core processing module test point is with the fault verification of receiving terminal core processing module test point foundation: judge that whether the sequence that the handshake of its sent fixed sequence program receives with self is consistent; The fault verification of transmitting terminal photoelectric conversion module test point and receiving terminal photoelectric conversion module test point is according to being: reads, by I2C interface, the optical module state meeting SFF8472 agreement and judges the state of its circuit; The fault verification of optical cable medium is according to being: indicates pin LOS pin to lose light instruction according to optical link and judges.
4. HD video fiber-optic transfer self checking method according to claim 1, it is characterised in that described step 3) in the system failure way of output at least include fault video output, malfunction report output and display lamp output in one.
5. HD video fiber-optic transfer self checking method according to claim 4, it is characterized in that, the described fault video way of output refers to and defines image output according to malfunction combination and classification, the fault video output of transmitter must arrange corresponding fault video output interface on the transmitter, and the fault video output of receiver is available for the video output of receiver.
6. a HD video fiber-optic transfer self-checking unit, it is characterized in that, this self-checking unit includes fault detection module and fault output module, described fault detection module for arranging corresponding fault detecting point in HD video fibre-optic transmission system (FOTS), and the fault verification according to fault detecting point carries out fault verification according to the fault detecting point arranged, described fault output module is for exporting failure determination result according to the system failure way of output set, it is achieved detection and the location to HD video fiber-optic transfer fault.
7. HD video fiber-optic transfer self-checking unit according to claim 6, it is characterized in that, described fault detection module arranges fault detecting point and at least includes in HD video input Data Detection point, transmitting terminal core processing module test point, transmitting terminal photoelectric conversion module test point, optical cable medium test point, receiving terminal photoelectric conversion module test point, receiving terminal core processing module test point and HD video output Data Detection point.
8. HD video fiber-optic transfer self-checking unit according to claim 7, it is characterised in that the fault verification of described fault detecting point is according to as follows:
The fault verification of HD video input Data Detection point and HD video output Data Detection point is according to being: judge in video data, whether row, field signal (H, V) sequential meet VESA standard; Transmitting terminal core processing module test point is with the fault verification of receiving terminal core processing module test point foundation: judge that whether the sequence that the handshake of its sent fixed sequence program receives with self is consistent; The fault verification of transmitting terminal photoelectric conversion module test point and receiving terminal photoelectric conversion module test point is according to being: reads, by I2C interface, the optical module state meeting SFF8472 agreement and judges the state of its circuit; The fault verification of optical cable medium is according to being: indicates pin LOS pin to lose light instruction according to optical link and judges.
9. HD video fiber-optic transfer self-checking unit according to claim 6, it is characterised in that the system failure way of output that described fault output module adopts at least includes fault video output, malfunction reports the one exported and in display lamp output.
10. HD video fiber-optic transfer self-checking unit according to claim 9, it is characterized in that, the described fault video way of output refers to and defines image output according to malfunction combination and classification, the fault video output of transmitter must arrange video output interface of applauding accordingly on the transmitter, and the fault video output of receiver shares the video output of receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610189025.XA CN105680938B (en) | 2016-03-29 | 2016-03-29 | A kind of HD video optical fiber transmission self checking method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610189025.XA CN105680938B (en) | 2016-03-29 | 2016-03-29 | A kind of HD video optical fiber transmission self checking method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105680938A true CN105680938A (en) | 2016-06-15 |
| CN105680938B CN105680938B (en) | 2018-04-24 |
Family
ID=56224668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610189025.XA Active CN105680938B (en) | 2016-03-29 | 2016-03-29 | A kind of HD video optical fiber transmission self checking method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105680938B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106791249A (en) * | 2016-11-11 | 2017-05-31 | 天津光电通信技术有限公司 | A kind of LED display display control program |
| CN106851262A (en) * | 2017-02-24 | 2017-06-13 | 青岛海信电器股份有限公司 | The method and apparatus that FPGA detects video signal transmission failure in laser television |
| CN107888279A (en) * | 2017-11-17 | 2018-04-06 | 京信通信系统（中国）有限公司 | The fault self-recovery method and system of optical fiber telecommunications system |
| CN108111793A (en) * | 2018-01-03 | 2018-06-01 | 山东超越数控电子股份有限公司 | A kind of DVI signal transmission systems and its method of work based on FPGA |
| CN109586788A (en) * | 2018-12-10 | 2019-04-05 | 宜春学院 | Monitoring system method for diagnosing faults, device, computer equipment and storage medium |
| CN110213168A (en) * | 2018-02-28 | 2019-09-06 | 中航光电科技股份有限公司 | A kind of FC turns the data conversion flow control methods and device of Ethernet |
| CN111901193A (en) * | 2020-07-16 | 2020-11-06 | 苏州伏特通信科技有限公司 | Communication transmission equipment fault detection system |
| CN113904719A (en) * | 2021-12-10 | 2022-01-07 | 中国科学院空天信息创新研究院 | Health monitoring and fault diagnosis method for optical transmission equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1665173A (en) * | 2004-03-03 | 2005-09-07 | 华为技术有限公司 | Optical fibre fault monitoring and positioning system for communication network and method thereof |
| CN201025711Y (en) * | 2006-09-21 | 2008-02-20 | 黄中海 | A wave division transmission system for optical cable failure self check |
| CN104765354A (en) * | 2014-01-10 | 2015-07-08 | 北京博锐尚格节能技术股份有限公司 | Fault diagnosis method, device and system for sensors and execution elements |
-
2016
- 2016-03-29 CN CN201610189025.XA patent/CN105680938B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1665173A (en) * | 2004-03-03 | 2005-09-07 | 华为技术有限公司 | Optical fibre fault monitoring and positioning system for communication network and method thereof |
| CN201025711Y (en) * | 2006-09-21 | 2008-02-20 | 黄中海 | A wave division transmission system for optical cable failure self check |
| CN104765354A (en) * | 2014-01-10 | 2015-07-08 | 北京博锐尚格节能技术股份有限公司 | Fault diagnosis method, device and system for sensors and execution elements |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106791249A (en) * | 2016-11-11 | 2017-05-31 | 天津光电通信技术有限公司 | A kind of LED display display control program |
| CN106851262A (en) * | 2017-02-24 | 2017-06-13 | 青岛海信电器股份有限公司 | The method and apparatus that FPGA detects video signal transmission failure in laser television |
| CN107888279A (en) * | 2017-11-17 | 2018-04-06 | 京信通信系统（中国）有限公司 | The fault self-recovery method and system of optical fiber telecommunications system |
| CN107888279B (en) * | 2017-11-17 | 2020-03-24 | 京信通信系统（中国）有限公司 | Fault self-healing method, system, computer readable storage medium and computer device |
| US11012150B2 (en) | 2017-11-17 | 2021-05-18 | Comba Telecom Systems (China) Limited | Autonomous failure recovery method and system for fiber-optic communication system |
| CN108111793A (en) * | 2018-01-03 | 2018-06-01 | 山东超越数控电子股份有限公司 | A kind of DVI signal transmission systems and its method of work based on FPGA |
| CN110213168A (en) * | 2018-02-28 | 2019-09-06 | 中航光电科技股份有限公司 | A kind of FC turns the data conversion flow control methods and device of Ethernet |
| CN109586788A (en) * | 2018-12-10 | 2019-04-05 | 宜春学院 | Monitoring system method for diagnosing faults, device, computer equipment and storage medium |
| CN109586788B (en) * | 2018-12-10 | 2021-08-24 | 宜春学院 | Monitoring system fault diagnosis method and device, computer equipment and storage medium |
| CN111901193A (en) * | 2020-07-16 | 2020-11-06 | 苏州伏特通信科技有限公司 | Communication transmission equipment fault detection system |
| CN113904719A (en) * | 2021-12-10 | 2022-01-07 | 中国科学院空天信息创新研究院 | Health monitoring and fault diagnosis method for optical transmission equipment |
| CN113904719B (en) * | 2021-12-10 | 2022-03-08 | 中国科学院空天信息创新研究院 | Health monitoring and fault diagnosis method for optical transmission equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105680938B (en) | 2018-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105680938B (en) | A kind of HD video optical fiber transmission self checking method and device | |
| CN101442385B (en) | Test device of digital communication error rate | |
| CN102244778A (en) | Video signal transmission apparatus and identification information acquisition method for transmission system | |
| CN203278835U (en) | Optical module calibration system | |
| CN106209220A (en) | A kind of UX3328SFP optical module Automatic parameter based on FPGA is arranged and method of testing | |
| CN202488591U (en) | High definition multimedia interface remote transmitting device | |
| CN106330594A (en) | Pre-emphasis parameter configuration method and apparatus | |
| US10090915B2 (en) | Optical communication device and optical communication method | |
| CN104660989B (en) | A kind of optical fiber based on FPGA turns full layout type Camera link realtime graphic optical transmitter and receivers | |
| CN106851233B (en) | Automatic updating method and device for EDID information of high-definition video optical transmitter and receiver | |
| CN105676109B (en) | A kind of motherboard test method and equipment | |
| CN101706543A (en) | Remote low-voltage cable sequencing device and remote low-voltage cable sequencing method | |
| CN209358545U (en) | The synthesis optical fiber inspection device of integrated FC optical fiber link and Network Check | |
| CN107765117A (en) | A kind of test device and method of optical module self-healing | |
| CN103686153A (en) | Contrast ratio test system | |
| CN207369037U (en) | A kind of optical cable multichannel fibre core real-time monitoring device and system | |
| US20160103168A1 (en) | Emc test bench comprising an item of equipment under test which is intended to be loaded on board an aircraft | |
| CN102435793B (en) | Intelligent switching device suitable for aviation cable reflection measurement | |
| CN113162683B (en) | Airborne FC communication link fault detection method | |
| CN106657990A (en) | Mainboard testing equipment and method | |
| CN211826264U (en) | Rapid full-performance detection RJ45 network interface equipment | |
| CN210640967U (en) | 4K video splicing box with automatic signal backup and switching functions | |
| CN206835277U (en) | A kind of DVI signals single-core fiber transmitter | |
| CN206728022U (en) | A kind of remote measuring and controlling system based on fiber optic communication | |
| CN206595998U (en) | Optical fiber real-time monitoring remote control data Transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |