CN115065857B - High-definition multimedia interface optical fiber transmission device - Google Patents
High-definition multimedia interface optical fiber transmission device Download PDFInfo
- Publication number
- CN115065857B CN115065857B CN202210984570.3A CN202210984570A CN115065857B CN 115065857 B CN115065857 B CN 115065857B CN 202210984570 A CN202210984570 A CN 202210984570A CN 115065857 B CN115065857 B CN 115065857B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- control unit
- central control
- transmission
- line
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Abstract
The invention relates to the technical field of data transmission, in particular to a high-definition multimedia interface optical fiber transmission device, which is internally provided with a first detection unit, a second detection unit and a central control unit; the signal parameters provided by the first detection unit and the second detection unit are compared through the central control unit, the stability of the performance of each signal in the transmission process in a single period can be accurately judged, the central control unit controls the data transmission quantity and the transmission rate of the optical fiber line in a targeted manner according to the comparison result, the problem that the signal is unstable in the transmission process can be effectively solved, and the high fidelity of the signal in remote transmission is effectively improved while the signal performance is automatically adjusted in the signal transmission process.
Description
Technical Field
The invention relates to the technical field of high-definition multimedia interface devices, in particular to a high-definition multimedia interface optical fiber transmission device.
Background
A High Definition Multimedia Interface (HDMI) is a full digital video and audio transmission Interface, which is also called a High Definition Multimedia Interface.
The common HDMI cable adopts a copper cable core, the optical fiber HDMI cable adopts an optical fiber core, and during short-distance transmission, the transmission rate difference between the copper core HDMI cable and the optical fiber HDMI cable is small, but during long-distance transmission, the advantages of the optical fiber HDMI cable are very obvious, and the optical fiber HDMI cable adopts an optical fiber transmission medium, so that the problem of long-distance transmission is solved.
Chinese patent application No.: CN201911062667.3 discloses an HDMI optical fiber transmission device; by the device, the HDMI signals are remotely transmitted through the optical fiber, so that the following problems exist: whether the performance of the signal is attenuated or not in the transmission process, whether high-definition lossless transmission is realized or not, and whether the displayed image has the phenomena of blurring, color separation and the like or not. Thus, there is an increasing demand for long-distance transmission of signals and for signal quality.
Disclosure of Invention
Therefore, the invention provides a high-definition multimedia interface optical fiber transmission device which is used for overcoming the problem of unstable remote signal transmission in the prior art.
In order to achieve the above object, the present invention provides an optical fiber transmission device with high definition multimedia interface, comprising:
a transmitter and a receiver connected by a plurality of fiber optic lines;
the first detection unit is connected with the receiver and used for randomly extracting the received signals transmitted by the plurality of optical fiber lines received by the receiver;
the second detection unit is connected with the transmitter and is used for extracting the transmission signals transmitted by the optical fiber lines connected with the transmitter;
and the central control unit is respectively connected with the first detection unit and the second detection unit and used for respectively receiving part of received signals uploaded by the first detection unit in the receiver and sending signals uploaded by the second detection unit in the sender, comparing parameters of the received signals with parameters of corresponding signals in the sent signals by the central control unit, primarily judging whether transmission between the sender and the receiver is qualified according to a comparison result, and selecting corresponding optical fiber lines as a judgment basis according to the judgment result and the data transmission quantity of each optical fiber line in which the selected received signals are located in a period so as to judge whether transmission between the sender and the receiver is qualified secondarily.
Further, a preset comprehensive evaluation coefficient Y0 is arranged in the central control unit, when the first detection unit and the second detection unit complete the extraction of the signals in the corresponding optical fiber lines, the first detection unit and the second detection unit respectively upload the extracted sending signals and receiving signals to the central control unit, the central control unit selects the corresponding signals from the sending signals according to the receiving signals and sequentially extracts the sending frequency F, the sending wavelength lambda and the sending amplitude F in the sending signals and the receiving frequency F ', the receiving wavelength lambda' and the receiving amplitude F 'in the corresponding receiving signals, after extraction is finished, the central control unit calculates a frequency difference delta F, a wavelength difference delta lambda and an amplitude difference delta F in sequence, calculates a comprehensive evaluation coefficient Y in the signal transmission process in each difference calculation period and compares Y with Y0 to preliminarily judge whether the signal transmission between the transmitter and the receiver is qualified, sets delta F = F-F', -lambda = lambda-lambda ', -F = F-F', Y =deltaf × Qf +/delta lambda × Q lambda +/delta F × QF, wherein Qf is a preset frequency weight coefficient, Q lambda is a preset wavelength weight coefficient, QF is a preset amplitude weight coefficient, qf < 1, Q lambda < 1, QF < 1 and Qf + Q lambda + QF =1,
if Y is less than or equal to Y0, the central control unit preliminarily determines that signal attenuation does not occur in transmission of signals between the transmitter and the receiver in the period, controls the first detection unit to randomly extract received signals transmitted by a plurality of optical fiber lines again, and repeats the steps to perform secondary determination on whether transmission between the transmitter and the receiver in signal transmission in the period is qualified or not by using the randomly extracted signals again;
if Y is larger than Y0, the central control unit preliminarily determines that signal attenuation occurs in transmission of signals between the transmitter and the receiver in the period, and controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period and controls the first detection unit to extract received signals in the corresponding optical fiber line according to a counting result so as to perform secondary determination on whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
Further, a first preset standard evaluation coefficient difference value delta Y1, a second preset standard evaluation coefficient difference value delta Y2, a first preset data transmission quantity standard regulation coefficient alpha 1 and a second preset data transmission quantity standard regulation coefficient alpha 2 are arranged in the central control unit, wherein delta Y1 is smaller than delta Y2,1 is smaller than alpha 1 and is smaller than alpha 2, when the central control unit judges that the first detection unit needs to be controlled to extract a receiving signal in the corresponding optical fiber line so as to carry out secondary judgment on whether the transmission between the transmitter and the receiver in the signal transmission in the period is qualified, the central control unit calculates a difference value delta Y between a preset standard evaluation coefficient Y0 and a comprehensive evaluation coefficient Y in the signal transmission in the period to judge whether the standard data transmission quantity of the optical fiber line is regulated or not, and a preset data quantity standard Q0 for secondarily judging the optical fiber line is also arranged in the central control unit,
if the delta Y is less than or equal to the delta Y1, the central control unit judges that the Q0 does not need to be adjusted;
if delta Y1 is less than delta Y and less than delta Y2, the central control unit adjusts Q0 by using a first preset data transmission quantity standard adjusting coefficient alpha 1;
if the delta Y is more than or equal to the delta Y2, the central control unit adjusts Q0 by using a second preset data transmission quantity standard adjusting coefficient alpha 2;
when the central control unit adjusts Q0 by using α i, i =1,2 is set, and the adjusted data transmission amount standard of the optical fiber line is denoted as Q0', and Q0' = Q0 × α i is set; after the adjustment is completed, the central control unit randomly extracts a plurality of receiving signals from the optical fiber line with the actual data transmission quantity larger than Q0 or Q0' to be used as a calculation basis, and extracts the receiving signals in the corresponding optical fiber line to perform secondary judgment on whether the transmission between the transmitter and the receiver is qualified in the signal transmission in the period.
Furthermore, a preset optical fiber line extraction number N0 is arranged in the central control unit, when the central control unit adjusts the data transmission quantity standard of the optical fiber line to Q0', the central control unit sequentially detects the data transmission quantity of each optical fiber line in a single transmission process and counts the number N of the optical fiber lines of which the actual data transmission quantity is greater than Q0',
if N is larger than or equal to N0, the central control unit selects N0 optical fiber lines from the optical fiber lines with the data transmission quantity larger than Q0' and sequentially extracts the frequency, wavelength and amplitude of signals transmitted by each optical fiber line so as to recalculate the comprehensive evaluation coefficient of the device in the signal transmission process in the period;
if N is more than 0 and less than N0, the central control unit selects N optical fiber lines from the optical fiber lines with the data transmission quantity more than Q0' and sequentially extracts the frequency, wavelength and amplitude of signals transmitted by each optical fiber line so as to recalculate the comprehensive evaluation coefficient of the device in the signal transmission process in the period;
if N =0, the central control unit counts the data transmission quantity qj (j is more than or equal to 1 and less than or equal to N) of the optical fiber lines randomly extracted in the primary judgment process and extracts the maximum data transmission quantity qmax, wherein N is the quantity of the optical fiber lines randomly extracted in the primary judgment process, the central control unit calculates the ratio B of qmax and Q0 'and judges whether to further adjust Q0' according to B;
when the central control unit completes the calculation of the comprehensive evaluation coefficient of the high-definition multimedia interface optical fiber transmission device in the signal transmission process in the period, the central control unit marks the newly obtained comprehensive evaluation coefficient as Y',
if Y' is less than or equal to Y0, the central control unit determines that signal attenuation does not occur in transmission between the transmitter and the receiver in signal transmission in the period, and the central control unit controls the first detection unit to randomly extract the received signals transmitted by the plurality of optical fiber lines again and repeats the steps so that the received signals further determine whether the transmission between the transmitter and the receiver in the signal transmission in the period is qualified;
if Y' > Y0, the central control unit determines that signal attenuation occurs in transmission between the transmitter and the receiver in signal transmission in the period, and controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period and controls the first detection unit to extract a received signal in the corresponding optical fiber line according to a counting result so as to further determine whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
Further, the central control unit randomly extracts a corresponding number of received signals from the received signals which are not preliminarily selected in the period when preliminarily judging that the signals transmitted between the transmitter and the receiver are not attenuated, and recalculates the comprehensive evaluation coefficient y according to the frequency, wavelength and amplitude of the extracted received signals and the corresponding transmitted signals,
if Y is less than or equal to Y0, the central control unit secondarily determines that signal attenuation does not occur in signal transmission between the transmitter and the receiver in signal transmission in the period, and the central control unit detects whether the signal sending rate of the transmitter and the signal receiving rate of the receiver meet the preset transmission rate of the optical fiber line;
if Y is greater than Y0, the central control unit secondarily determines that signal attenuation occurs in transmission between the transmitter and the receiver in signal transmission in the period, the central control unit controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period, and controls the first detection unit to extract the received signals in the corresponding optical fiber line according to the counting result so as to further determine whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
Further, the central control unit is provided with a preset optical fiber line transmission rate V0, when the central control unit determines that no signal attenuation occurs in signal transmission between the transmitter and the receiver in signal transmission in the present period for the second time, the central control unit sequentially detects the signal transmission rate of each optical fiber line in the period and sequentially compares the transmission rate of each optical fiber line in the period with V0 to sequentially perform preliminary determination on whether the signal transmission rate of each optical fiber line is qualified, for the nth optical fiber line, n =1,2,3,4 is set, the signal transmission rate of the optical fiber line in the period is denoted as Vn, and Vn = Qn/T is set, where T is the transmission time of a signal in the period and Qn is the data transmission amount of the optical fiber line in the period,
if Vn is larger than or equal to V0, the central control unit determines that the signal transmission rate in the period accords with the preset optical fiber line transmission rate, and the central control unit determines that the data transmission quantity of the optical fiber line where the signal is located in the period accords with the preset data transmission quantity of the optical fiber line;
if Vn is less than V0, the central control unit determines that the signal transmission rate in the period does not accord with the transmission rate of the preset optical fiber line, and the central control unit calculates the difference value between the signal transmission rate Vn in the period and the transmission rate V0 of each preset optical fiber line to determine whether the signal can be transmitted to the display terminal.
Furthermore, the central control unit is provided with a difference value delta Vn between the signal transmission rate Vn of each optical fiber line and the preset transmission rate V0 of each optical fiber line in a single period and a preset rate difference value delta V0; when the central control unit determines that the signal transmission rate in the period does not accord with the preset rate value, setting Δ Vn = Vn-V0,
if the delta Vn is less than delta V0, the central control unit compares the corresponding optical fiber line data transmission quantity of the signal in the period with the preset data transmission quantity in the central control unit and judges whether the optical fiber line needs to be added or not according to the comparison result;
if the delta Vn is larger than or equal to the delta V0, the central control unit determines that the signal in the period can be continuously transmitted to the display terminal.
Furthermore, the transmitter and the receiver are connected by four optical fiber lines, including a line a, a line b, a line c and a line d, where the line d is a spare line, the central control unit is further provided with a preset optical fiber line carrying rate P0, the central control unit determines that a difference between a signal transmission rate of each optical fiber line and a preset transmission rate of each optical fiber line is greater than a preset rate difference, the central control unit calculates a carrying rate Pa of the line a, a carrying rate Pb of the line b, and a carrying rate Pc of the line c, respectively, sets x = a, b, c for a carrying rate Px of the line x, which is a ratio of a data transmission amount of the line x to a preset data transmission amount of the line x, and compares Pa, pb, and Pc with P0 in sequence after the calculation is completed,
if at least one optical fiber line exists, the carrying rate of the optical fiber line is greater than P0, the central control unit opens the spare line d, and the central control unit transmits the number of the exceeding data of the corresponding channel with the carrying rate higher than the preset carrying rate by using the line d;
and if the bearing rate of each optical fiber line is lower than the preset bearing rate of the corresponding optical fiber line, the central control unit judges that the signal transmission of each optical fiber line in the high-definition multimedia interface optical fiber transmission device is within the bearing range of the data transmission quantity of each line.
Further, when the central control unit starts the standby line d, the central control unit monitors the carrying rate of the line d in real time and calculates the carrying rate Pd of the line d, wherein Pd is the ratio of the data transmission quantity of the line d to the preset data transmission quantity of the line d;
if Pd is greater than P0, the central control unit reduces the speed of the transmitter for outputting the transmission signal so as to reduce the data transmission quantity of each optical fiber line;
if Pd is less than or equal to P0, the central control unit does not need to adjust the line, and the signal in the period can be continuously transmitted to the display terminal.
Compared with the prior art, the device has the advantages that the transmitter and the receiver of the device comprise the first detection unit, the second detection unit and the central control unit. The first detection unit randomly extracts the received signals and compares each parameter of the detected signals with the corresponding signal parameter in the second detection unit transmitter through the central control unit, and the stability of the performance of each signal in the transmission process through the optical fiber line in the period can be accurately judged according to the judgment result; meanwhile, the device selects the corresponding adjustment processing on the data transmission quantity and the transmission rate of the optical fiber circuit according to the judgment result of the central control unit in the device, can effectively solve the problem of unstable signals in the transmission process of the signals, and effectively improves the high fidelity of the signals in the long-distance transmission while finishing the automatic adjustment of the signal performance in the signal transmission process.
Furthermore, the central control unit of the invention obtains the comprehensive evaluation coefficient of the signal of the device in the data transmission process by comparing the transmission performance of the signal in the first detection unit and the second detection unit, compares the comprehensive evaluation coefficient with the preset comprehensive evaluation coefficient in the central control unit, and selects the corresponding processing mode according to the comparison result, thereby effectively detecting the signal performance attenuation condition in the transmission process of the signal.
Furthermore, the central control unit of the invention compares the range of the difference value between the corresponding comprehensive evaluation coefficient and the preset comprehensive evaluation coefficient with the preset difference value in the central control unit to judge that the corresponding adjustment coefficient is used for adjusting the corresponding data transmission quantity when the signal is attenuated in the transmission process, can quickly judge the stability of the signal in the signal transmission process and adjust the data transmission quantity in a targeted manner, and can finish the automatic adjustment of the signal performance in the signal transmission process.
Furthermore, after the central control unit attenuates the signal in the transmission process and adjusts the data transmission quantity by using the corresponding adjustment coefficient according to the range of the attenuation difference, the central control unit compares the comprehensive evaluation coefficient of the optical fiber line of which the actual data transmission quantity is greater than the adjusted data transmission quantity again and selects the corresponding processing mode according to the result, so that the data transmission quantity can be judged and adjusted in time in the signal transmission, the performance of the signal can be detected and adjusted in time, and the high fidelity of the signal in the long-distance transmission is effectively improved.
Furthermore, the central control unit judges that the comprehensive evaluation coefficients in a single period meet the preset standard, and secondarily judges the comprehensive evaluation coefficients of the same number of signals extracted in the period, so that the accuracy of the detection result of randomly extracting the signals can be improved, and a corresponding processing mode is selected according to the judgment result and is adjusted in a targeted manner.
Further, the central control unit of the present invention secondarily determines whether the comprehensive evaluation coefficient in a single cycle meets the preset standard, detects whether the transmission rate in each optical fiber line meets the preset rate, and selects a corresponding processing mode according to the determination result; the performance of the signal in the transmission process can be improved on the premise of ensuring the transmission rate of the signal.
Furthermore, the central control unit compares the difference value between the actual transmission rate and the preset transmission rate in each optical fiber line with the difference value between the preset transmission rate, can judge whether the difference value between the actual transmission rate and the preset transmission rate is within the range allowed by the central control unit, and selects a corresponding processing mode according to the judgment result, so that the high fidelity of the signal in long-distance transmission can be effectively improved while the signal transmission rate is ensured.
Furthermore, the central control unit detects the carrying rate of the data transmission of the four optical fiber lines and compares the carrying rate with the preset carrying rate, so that whether the data transmission quantity of the corresponding optical fiber line is in the line carrying range or not can be judged, the data transmission quantity exceeding the preset carrying rate of the corresponding line is transmitted by using the standby channel, and the signal performance attenuation caused by the congestion of the signal in the transmission process of the optical fiber line can be avoided.
Drawings
FIG. 1 is a schematic signal transmission diagram of an optical fiber transmission apparatus with high-definition multimedia interface according to the present invention;
fig. 2 is a block diagram of an optical fiber transmission device with high-definition multimedia interface according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in conjunction with the following examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and do not delimit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Please refer to fig. 1 and fig. 2, which show a signal transmission schematic diagram of the high-definition multimedia interface optical fiber transmission apparatus and a structural block diagram of the high-definition multimedia interface optical fiber transmission apparatus according to the present invention;
the invention provides a high-definition multimedia interface optical fiber transmission device, which comprises a transmitter and a receiver which are connected through a plurality of optical fiber lines, and is characterized by also comprising:
the first detection unit is connected with the receiver and used for randomly extracting the received signals transmitted by the plurality of optical fiber lines received by the receiver;
the second detection unit is connected with the transmitter and is used for extracting the transmission signals transmitted by the optical fiber lines connected with the transmitter;
and the central control unit is respectively connected with the first detection unit and the second detection unit and used for respectively receiving part of received signals uploaded by the first detection unit in the receiver and sending signals uploaded by the second detection unit in the sender, comparing parameters of the received signals with parameters of corresponding signals in the sent signals by the central control unit, primarily judging whether transmission between the sender and the receiver is qualified according to a comparison result, and selecting corresponding optical fiber lines as a judgment basis according to the judgment result and the data transmission quantity of each optical fiber line in which the selected received signals are located in a period so as to judge whether transmission between the sender and the receiver is qualified secondarily.
The invention relates to a transmitter and a receiver of a high-definition multimedia interface optical fiber transmission device, which comprise a first detection unit, a second detection unit and a central control unit. The first detection unit randomly extracts the received signals and compares each parameter of the detected signals with the corresponding signal parameter in the second detection unit transmitter through the central control unit, and the stability of the performance of each signal in the transmission process in a period through an optical fiber line can be accurately judged according to the judgment result; meanwhile, the device selects the corresponding adjustment processing on the data transmission quantity and the transmission rate of the optical fiber circuit according to the judgment result of the central control unit in the device, can effectively solve the problem of unstable signals in the transmission process of the signals, and effectively improves the high fidelity of the signals in the long-distance transmission while finishing the automatic adjustment of the signal performance in the signal transmission process.
Specifically, a preset comprehensive evaluation coefficient Y0 is set in the central control unit, when the first detection unit and the second detection unit complete the extraction of the signals in the corresponding optical fiber lines, the first detection unit and the second detection unit respectively upload the transmission signals and the reception signals extracted in the period to the central control unit, the central control unit selects the corresponding signals from the transmission signals according to the reception signals and sequentially extracts the transmission frequency F, the transmission wavelength lambda and the transmission amplitude F in the transmission signals and the reception frequency F ', the reception wavelength lambda' and the reception amplitude F 'in the corresponding reception signals, after extraction is finished, the central control unit calculates a frequency difference delta F, a wavelength difference delta lambda and an amplitude difference delta F in sequence, calculates a comprehensive evaluation coefficient Y in the signal transmission process in each difference calculation period and compares Y with Y0 to preliminarily judge whether the signal transmission between the transmitter and the receiver is qualified, sets delta F = F-F', -lambda = lambda-lambda ', -F = F-F', Y =deltaf × Qf +/delta lambda × Q lambda +/delta F × QF, wherein Qf is a preset frequency weight coefficient, Q lambda is a preset wavelength weight coefficient, QF is a preset amplitude weight coefficient, qf < 1, Q lambda < 1, QF < 1 and Qf + Q lambda + QF =1,
if Y is less than or equal to Y0, the central control unit preliminarily determines that signal attenuation does not occur in transmission of signals between the transmitter and the receiver in the period, controls the first detection unit to randomly extract received signals transmitted by a plurality of optical fiber lines again, and repeats the steps to perform secondary determination on whether transmission between the transmitter and the receiver in signal transmission in the period is qualified or not by using the randomly extracted signals again;
if Y is greater than Y0, the central control unit preliminarily determines that signal attenuation occurs in transmission of signals between the transmitter and the receiver in the period, and the central control unit controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period and controls the first detection unit to extract received signals in the corresponding optical fiber line according to the counting result so as to perform secondary determination on whether transmission between the transmitter and the receiver in signal transmission in the period is qualified.
The central control unit obtains a comprehensive evaluation coefficient of the signal of the device in the data transmission process by comparing the transmission performance of the signal in the first detection unit and the second detection unit, compares the comprehensive evaluation coefficient with a preset comprehensive evaluation coefficient in the central control unit, and selects a corresponding processing mode according to the comparison result, so that the condition that the signal performance is attenuated in the transmission process of the signal can be effectively detected.
Specifically, a first preset standard evaluation coefficient difference value Δ Y1, a second preset standard evaluation coefficient difference value Δ Y2, a first preset data transmission quantity standard adjustment coefficient α 1 and a second preset data transmission quantity standard adjustment coefficient α 2 are arranged in the central control unit, wherein Δ Y1 is less than Δ Y2,1 is less than α 1 and is less than α 2, when the central control unit determines that the first detection unit needs to be controlled to extract a receiving signal in a corresponding optical fiber line to perform secondary determination on whether transmission between the transmitter and the receiver in signal transmission in the present period is qualified, the central control unit calculates a difference value Δ Y between a preset standard evaluation coefficient Y0 and a comprehensive evaluation coefficient Y in signal transmission in the period to determine whether to adjust the standard data transmission quantity of the optical fiber line, and the central control unit is further provided with a preset data transmission quantity standard Q0 for secondarily determining the optical fiber line,
if the delta Y is less than or equal to the delta Y1, the central control unit judges that the Q0 does not need to be adjusted;
if delta Y1 is less than delta Y and less than delta Y2, the central control unit adjusts Q0 by using a first preset data transmission quantity standard adjusting coefficient alpha 1;
if the delta Y is more than or equal to the delta Y2, the central control unit adjusts Q0 by using a second preset data transmission quantity standard adjusting coefficient alpha 2;
when the central control unit adjusts Q0 by using α i, i =1,2 is set, and the adjusted data transmission amount standard of the optical fiber line is denoted as Q0', and Q0' = Q0 × α i is set; after the adjustment is completed, the central control unit randomly extracts a plurality of receiving signals from the optical fiber line with the actual data transmission quantity larger than Q0 or Q0' to be used as a calculation basis, and extracts the receiving signals in the corresponding optical fiber line to perform secondary judgment on whether the transmission between the transmitter and the receiver is qualified in the signal transmission in the period.
The central control unit disclosed by the invention attenuates signals in the transmission process, judges that the corresponding data transmission quantity is adjusted by using the corresponding adjusting coefficient according to the comparison between the range of the difference value of the corresponding comprehensive evaluation coefficient and the preset difference value in the central control unit, can quickly judge the stability of the signals in the signal transmission process and adjust the data transmission quantity in a targeted manner, and can finish the automatic adjustment of the signal performance in the signal transmission process.
Specifically, the central control unit is provided with a preset optical fiber line extraction number N0, when the central control unit adjusts the data transmission quantity standard of the optical fiber line to Q0', the central control unit sequentially detects the data transmission quantity of each optical fiber line in a single transmission process and counts the number N of the optical fiber lines of which the actual data transmission quantity is greater than Q0',
if N is larger than or equal to N0, the central control unit selects N0 optical fiber lines from the optical fiber lines with the data transmission quantity larger than Q0' and sequentially extracts the frequency, wavelength and amplitude of signals transmitted by each optical fiber line so as to recalculate the comprehensive evaluation coefficient of the device in the signal transmission process in the period;
if N is more than 0 and less than N0, the central control unit selects N optical fiber lines from the optical fiber lines with the data transmission quantity more than Q0' and sequentially extracts the frequency, the wavelength and the amplitude of signals transmitted by each optical fiber line so as to recalculate the comprehensive evaluation coefficient of the device in the signal transmission process in a period;
if N =0, the central control unit counts the data transmission quantity qj (j is more than or equal to 1 and less than or equal to N) of the optical fiber lines randomly extracted in the primary judgment process and extracts the maximum data transmission quantity qmax, wherein N is the quantity of the optical fiber lines randomly extracted in the primary judgment process, the central control unit calculates the ratio B of qmax and Q0 'and judges whether to further adjust Q0' according to B;
when the central control unit completes the calculation of the comprehensive evaluation coefficient of the high-definition multimedia interface optical fiber transmission device in the signal transmission process in a period, the central control unit records the newly obtained comprehensive evaluation coefficient as Y',
if Y' is less than or equal to Y0, the central control unit determines that signal attenuation does not occur in transmission between the transmitter and the receiver in signal transmission in the period, and the central control unit controls the first detection unit to randomly extract the received signals transmitted by the plurality of optical fiber lines again and repeats the steps so as to further determine whether the transmission between the transmitter and the receiver in the signal transmission in the period is qualified or not;
if Y' > Y0, the central control unit determines that signal attenuation occurs in transmission between the transmitter and the receiver in signal transmission in the period, and controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period and controls the first detection unit to extract a received signal in the corresponding optical fiber line according to a counting result so as to further determine whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
After the central control unit attenuates the signal in the transmission process and adjusts the data transmission quantity by using the corresponding adjustment coefficient according to the range of the attenuation difference value, the central control unit compares the comprehensive evaluation coefficient of the optical fiber line of which the actual data transmission quantity is greater than the adjusted data transmission quantity again and selects the corresponding processing mode according to the result, so that the data transmission quantity can be judged and adjusted in time in the signal transmission, the performance of the signal can be detected and adjusted in time, and the high fidelity of the signal in the long-distance transmission is effectively improved.
Specifically, when preliminarily determining that signal attenuation does not occur in the signal transmitted between the transmitter and the receiver, the central control unit randomly extracts a corresponding number of received signals from the preliminarily selected received signals in the signal in the present period and recalculates the comprehensive evaluation coefficient y according to the frequency, wavelength and amplitude of the extracted received signals and the corresponding transmitted signals,
if Y is less than or equal to Y0, the central control unit secondarily determines that signal attenuation does not occur in signal transmission between the transmitter and the receiver in signal transmission in the period, and the central control unit detects whether the signal sending rate of the transmitter and the signal receiving rate of the receiver meet the preset transmission rate of the optical fiber line;
if Y is greater than Y0, the central control unit secondarily determines that signal attenuation occurs in transmission between the transmitter and the receiver in signal transmission in the period, the central control unit controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period, and controls the first detection unit to extract the received signals in the corresponding optical fiber line according to the counting result so as to further determine whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
The central control unit secondarily judges whether the comprehensive evaluation coefficient in a single period meets the preset standard, detects whether the transmission rate in each optical fiber line meets the preset rate, and selects a corresponding processing mode according to the judgment result; the performance of the signal in the transmission process can be improved on the premise of ensuring the transmission rate of the signal.
Specifically, the central control unit is provided with a preset optical fiber line transmission rate V0, when the central control unit determines that signal attenuation does not occur in signal transmission between the transmitter and the receiver in signal transmission in the present period for the second time, the central control unit sequentially detects the signal transmission rate of each optical fiber line in the period and sequentially compares the transmission rate of each optical fiber line in the period with V0 to sequentially perform preliminary determination on whether the signal transmission rate of each optical fiber line is qualified, for the nth optical fiber line, n =1,2,3,4 is set, the signal transmission rate of the optical fiber line in the period is denoted as Vn, and Vn = Qn/T is set, where T is the transmission time of a signal in the period and Qn is the data transmission amount of the optical fiber line in the period,
if Vn is larger than or equal to V0, the central control unit determines that the signal transmission rate in the period accords with the preset optical fiber line transmission rate, and the central control unit determines that the data transmission quantity of the optical fiber line where the signal is located in the period accords with the preset data transmission quantity of the optical fiber line;
if Vn is less than V0, the central control unit determines that the signal transmission rate in the period does not accord with the transmission rate of the preset optical fiber line, and the central control unit calculates the difference value between the signal transmission rate Vn in the period and the transmission rate V0 of each preset optical fiber line to determine whether the signal can be transmitted to the display terminal.
Specifically, the central control unit is provided with a difference value Δ Vn between the signal transmission rate Vn of each optical fiber line and a preset transmission rate V0 of each optical fiber line in a single period and a preset rate difference value Δ V0; when the central control unit determines that the signal transmission rate in the period does not accord with the preset rate value, setting Δ Vn = Vn-V0,
if the delta Vn is less than delta V0, the central control unit compares the corresponding optical fiber line data transmission quantity in the period with the preset data transmission quantity in the central control unit and judges whether the optical fiber line needs to be added or not according to the comparison result;
if the delta Vn is larger than or equal to the delta V0, the central control unit determines that the signal in the period can be continuously transmitted to the display terminal.
The central control unit compares the difference value between the actual transmission rate and the preset transmission rate in each optical fiber line with the difference value between the preset transmission rate, can judge whether the difference value between the actual transmission rate and the preset transmission rate is within the range allowed by the central control unit or not, selects a corresponding processing mode according to the judgment result, can ensure the signal transmission rate, and effectively improves the high fidelity of the signal in long-distance transmission.
Specifically, the transmitter and the receiver are connected by four optical fiber lines, including a line a, a line b, a line c and a line d, where the line d is a spare line, the central control unit is further provided with a preset optical fiber line carrying rate P0, the central control unit determines that a difference between a signal transmission rate of each optical fiber line and a preset transmission rate of each optical fiber line is greater than a preset rate difference, the central control unit calculates a carrying rate Pa of the line a, a carrying rate Pb of the line b, and a carrying rate Pc of the line c, respectively, for a carrying rate Px of the line x, which is a ratio of a data transmission amount of the line x to a preset data transmission amount of the line x, sets x = a, b, c, and the central control unit compares Pa, pb, pc, and P0 in sequence after completing the calculation,
if at least one optical fiber line exists, the bearing rate of the optical fiber line is greater than P0, the central control unit starts a standby line d, and the central control unit transmits the number of the exceeding data of the corresponding channel with the bearing rate higher than the preset bearing rate by using the line d;
and if the bearing rate of each optical fiber line is lower than the preset bearing rate of the corresponding optical fiber line, the central control unit judges that the signal transmission of each optical fiber line in the high-definition multimedia interface optical fiber transmission device is within the bearing range of the data transmission quantity of each line.
Specifically, when the central control unit starts the standby line d, the central control unit monitors the carrying rate of the line d in real time and calculates the carrying rate Pd of the line d, wherein Pd is the ratio of the data transmission quantity of the line d to the preset data transmission quantity of the line d;
if Pd is greater than P0, the central control unit reduces the speed of the transmitter for outputting the transmission signal so as to reduce the data transmission quantity of each optical fiber line;
if Pd is less than or equal to P0, the central control unit does not need to adjust the line, and the signal in the period can be continuously transmitted to the display terminal.
The central control unit detects the bearing rate of the data transmission of the four optical fiber lines and compares the bearing rate with the preset bearing rate, so that whether the data transmission quantity of the corresponding optical fiber line is in the line bearing range or not can be judged, the data transmission quantity exceeding the preset bearing rate of the corresponding line is transmitted by using the standby channel, and the signal performance attenuation caused by the congestion of the signal in the transmission process of the optical fiber line can be avoided.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A high definition multimedia interface optical fiber transmission device, includes a transmitter and a receiver connected by a plurality of optical fiber lines, characterized by further comprising:
the first detection unit is connected with the receiver and used for randomly extracting the received signals transmitted by the plurality of optical fiber lines received by the receiver;
the second detection unit is connected with the transmitter and is used for extracting the transmission signals transmitted by the optical fiber lines connected with the transmitter;
the central control unit is respectively connected with the first detection unit and the second detection unit and used for respectively receiving part of received signals uploaded by the first detection unit in the receiver and sending signals uploaded by the second detection unit in the sender, comparing parameters of the received signals with parameters of corresponding signals in the sent signals by the central control unit, primarily judging whether transmission between the sender and the receiver is qualified or not according to a comparison result, and selecting corresponding optical fiber lines as a judgment basis according to the judgment result and the data transmission quantity of each optical fiber line in which the selected received signals are located in a period so as to judge whether transmission between the sender and the receiver is qualified or not secondarily;
the central control unit is internally provided with a preset comprehensive evaluation coefficient Y0, when the first detection unit and the second detection unit finish the extraction of the signals in the corresponding optical fiber lines, the first detection unit and the second detection unit respectively upload the transmission signals and the receiving signals extracted in the period to the central control unit, the central control unit selects the corresponding signals from the transmission signals according to the receiving signals and sequentially extracts the transmission frequency F, the transmission wavelength lambda and the transmission amplitude F in the transmission signals and the receiving frequency F ', the receiving wavelength lambda' and the receiving amplitude F 'in the corresponding receiving signals, after extraction is finished, the central control unit calculates a frequency difference delta F, a wavelength difference delta lambda and an amplitude difference delta F in sequence, calculates a comprehensive evaluation coefficient Y in the signal transmission process in each difference calculation period and compares Y with Y0 to preliminarily judge whether the signal transmission between the transmitter and the receiver is qualified, sets delta F = F-F', -lambda = lambda-lambda ', -F = F-F', Y =deltaf × Qf +/delta lambda × Q lambda +/delta F × QF, wherein Qf is a preset frequency weight coefficient, Q lambda is a preset wavelength weight coefficient, QF is a preset amplitude weight coefficient, qf < 1, Q lambda < 1, QF < 1 and Qf + Q lambda + QF =1,
if Y is less than or equal to Y0, the central control unit preliminarily determines that signal attenuation does not occur in the transmission of the signals between the transmitter and the receiver in the period, controls the first detection unit to randomly extract the received signals transmitted by the plurality of optical fiber lines again, and repeats the steps to perform secondary determination on whether the transmission between the transmitter and the receiver in the signal transmission in the period is qualified or not by using the randomly extracted signals again;
if Y is greater than Y0, the central control unit preliminarily determines that signal attenuation occurs in transmission of signals between the transmitter and the receiver in the period, and the central control unit controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period and controls the first detection unit to extract received signals in the corresponding optical fiber line according to the counting result so as to perform secondary determination on whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
2. The fiber optic transmission device with high-definition multimedia interface according to claim 1, wherein the central control unit is provided with a first predetermined standard evaluation coefficient difference Δ Y1, a second predetermined standard evaluation coefficient difference Δ Y2, a first predetermined data transmission amount standard adjustment coefficient α 1, and a second predetermined data transmission amount standard adjustment coefficient α 2, wherein Δ Y1 is smaller than Δ Y2,1 is smaller than α 1 and smaller than α 2, when the central control unit determines that the first detection unit is required to extract the received signal in the corresponding fiber optic line to secondarily determine whether the transmission between the transmitter and the receiver is acceptable during the signal transmission in the period, the central control unit calculates a difference Δ Y between a predetermined standard evaluation coefficient Y0 and a comprehensive evaluation coefficient Y during the signal transmission in the period to determine whether the standard data amount of the fiber optic line is adjusted, and the central control unit is further provided with a predetermined secondary determination fiber optic line data transmission amount standard Q0,
if the delta Y is less than or equal to the delta Y1, the central control unit judges that the Q0 does not need to be adjusted;
if the delta Y1 is smaller than the delta Y and smaller than the delta Y2, the central control unit adjusts Q0 by using a first preset data transmission quantity standard adjusting coefficient alpha 1;
if the delta Y is more than or equal to the delta Y2, the central control unit adjusts the Q0 by using a second preset data transmission quantity standard adjusting coefficient alpha 2;
when the central control unit adjusts Q0 by using α i, i =1,2 is set, and the adjusted data transmission amount standard of the optical fiber line is denoted as Q0', and Q0' = Q0 × α i is set; after the adjustment is completed, the central control unit randomly extracts a plurality of receiving signals from the optical fiber line with the actual data transmission quantity larger than Q0 or Q0' to be used as a calculation basis, and extracts the receiving signals in the corresponding optical fiber line to perform secondary judgment on whether the transmission between the transmitter and the receiver is qualified in the signal transmission in the period.
3. The high definition multimedia interface fiber optic transmission unit of claim 2,
the central control unit is internally provided with a preset optical fiber line extraction number N0, when the central control unit regulates the data transmission quantity standard of the optical fiber line to Q0', the central control unit sequentially detects the data transmission quantity of each optical fiber line in a single transmission process and counts the number N of the optical fiber lines of which the actual data transmission quantity is greater than Q0',
if N is larger than or equal to N0, the central control unit selects N0 optical fiber lines from the optical fiber lines with the data transmission quantity larger than Q0' and sequentially extracts the frequency, wavelength and amplitude of signals transmitted by each optical fiber line so as to recalculate the comprehensive evaluation coefficient of the device in the signal transmission process in the period;
if N is more than 0 and less than N0, the central control unit selects N optical fiber lines from the optical fiber lines with the data transmission quantity more than Q0' and sequentially extracts the frequency, the wavelength and the amplitude of signals transmitted by each optical fiber line so as to recalculate the comprehensive evaluation coefficient of the device in the signal transmission process in the period;
if N =0, the central control unit counts the data transmission quantity qj (j is more than or equal to 1 and less than or equal to N) of the optical fiber lines randomly extracted in the primary judgment process and extracts the maximum data transmission quantity qmax, wherein N is the quantity of the optical fiber lines randomly extracted in the primary judgment process, the central control unit calculates the ratio B of qmax and Q0 'and judges whether to further adjust Q0' according to B;
when the central control unit completes the calculation of the comprehensive evaluation coefficient of the high-definition multimedia interface optical fiber transmission device in the signal transmission process in the period, the central control unit marks the newly obtained comprehensive evaluation coefficient as Y',
if Y' is less than or equal to Y0, the central control unit determines that signal attenuation does not occur in transmission between the transmitter and the receiver in signal transmission in the period, and the central control unit controls the first detection unit to randomly extract the received signals transmitted by the plurality of optical fiber lines again and repeats the steps so as to further determine whether the transmission between the transmitter and the receiver in the signal transmission in the period is qualified or not by using the received signals;
if Y' > Y0, the central control unit determines that signal attenuation occurs in transmission between the transmitter and the receiver in signal transmission in the period, and controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period and controls the first detection unit to extract a received signal in the corresponding optical fiber line according to a counting result so as to further determine whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
4. The high definition multimedia interface fiber optic transmission device of claim 1,
the central control unit randomly extracts a corresponding number of received signals from the received signals which are not preliminarily selected in the signal in the period when preliminarily judging that the signal attenuation does not occur in the signal transmitted between the transmitter and the receiver and recalculates the comprehensive evaluation coefficient y according to the frequency, the wavelength and the amplitude of the extracted received signals and the corresponding transmitted signals,
if Y is less than or equal to Y0, the central control unit secondarily determines that signal attenuation does not occur in signal transmission between the transmitter and the receiver in signal transmission in the period, and the central control unit detects whether the signal sending rate of the transmitter and the signal receiving rate of the receiver meet the preset transmission rate of the optical fiber line;
if Y is greater than Y0, the central control unit secondarily determines that signal attenuation occurs in transmission between the transmitter and the receiver in signal transmission in the period, the central control unit controls the second detection unit to count data transmission quantity of each optical fiber line in the signal transmission process in the period, and controls the first detection unit to extract the received signals in the corresponding optical fiber line according to the counting result so as to further determine whether transmission between the transmitter and the receiver in the signal transmission in the period is qualified.
5. The high definition multimedia interface fiber optic transmission unit of claim 4,
the central control unit is provided with a preset optical fiber line transmission rate V0, when the central control unit secondarily determines that signal attenuation does not occur in signal transmission between the transmitter and the receiver in signal transmission in the period, the central control unit sequentially detects the signal transmission rate of each optical fiber line in the period and sequentially compares the transmission rate of each optical fiber line in the period with the V0 to sequentially perform preliminary determination on whether the signal transmission rate of each optical fiber line is qualified or not, for the nth optical fiber line, n =1,2,3,4 is set, the signal transmission rate of the optical fiber line in the period is denoted as Vn, vn = Qn/T is set, wherein T is the transmission time of a signal in the period, and Qn is the data transmission quantity of the optical fiber line in the period,
if Vn is greater than or equal to V0, the central control unit determines that the signal transmission rate in the period accords with the preset optical fiber line transmission rate, and the central control unit determines that the data transmission quantity of the optical fiber line where the signal is located in the period accords with the preset data transmission quantity of the optical fiber line;
if Vn is less than V0, the central control unit determines that the signal transmission rate in the period does not accord with the transmission rate of the preset optical fiber line, and the central control unit calculates the difference value between the signal transmission rate Vn in the period and the transmission rate V0 of each preset optical fiber line to determine whether the signal can be transmitted to the display terminal.
6. The high definition multimedia interface fiber optic transmission unit of claim 5,
the central control unit is provided with a difference value delta Vn between the signal transmission rate Vn of each optical fiber circuit and the preset transmission rate V0 of each optical fiber circuit in a single period and a preset rate difference value delta V0; when the central control unit determines that the signal transmission rate in the period does not accord with the preset rate value, setting Δ Vn = Vn-V0,
if the delta Vn is less than the delta V0, the central control unit compares the corresponding optical fiber line data transmission quantity of the signal in the period with the preset data transmission quantity in the central control unit and judges whether the optical fiber line needs to be added or not according to the comparison result;
if the delta Vn is larger than or equal to the delta V0, the central control unit determines that the signal in the period can be continuously transmitted to the display terminal.
7. The high definition multimedia interface fiber optic transmission unit of claim 6,
the transmitter and the receiver are connected by four optical fiber lines, and the transmitter comprises a line a, a line b, a line c and a line d, wherein the line d is a spare line, the central control unit is further provided with an optical fiber line preset bearing rate P0, when the central control unit judges that the difference value between the signal transmission rate of each optical fiber line and the preset transmission rate of each optical fiber line is greater than the preset rate difference value, the central control unit respectively calculates the bearing rate Pa of the line a, the bearing rate Pb of the line b and the bearing rate Pc of the line c, and sets x = a, b and c for the bearing rate Px of the line x, which is the ratio of the data transmission quantity of the line x to the preset data transmission quantity of the line x, after the calculation is completed, the central control unit sequentially compares Pa, pb and Pc with P0,
if at least one optical fiber line exists, the bearing rate of the optical fiber line is greater than P0, the central control unit starts a standby line d, and the central control unit transmits the number of the exceeding data of the corresponding channel with the bearing rate higher than the preset bearing rate by using the line d;
and if the bearing rate of each optical fiber line is lower than the preset bearing rate of the corresponding optical fiber line, the central control unit judges that the signal transmission of each optical fiber line in the high-definition multimedia interface optical fiber transmission device is within the bearing range of the data transmission quantity of each line.
8. The high definition multimedia interface fiber optic transmission unit of claim 7,
when the central control unit starts a standby line d, the central control unit monitors the bearing rate of the line d in real time and calculates the bearing rate Pd of the line d, wherein Pd is the ratio of the data transmission quantity of the line d to the preset data transmission quantity of the line d;
if Pd is greater than P0, the central control unit reduces the speed of the transmitter for outputting the transmission signal so as to reduce the data transmission quantity of each optical fiber line;
if Pd is less than or equal to P0, the central control unit does not need to adjust the line, and the signal in the period can be continuously transmitted to the display terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984570.3A CN115065857B (en) | 2022-08-17 | 2022-08-17 | High-definition multimedia interface optical fiber transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984570.3A CN115065857B (en) | 2022-08-17 | 2022-08-17 | High-definition multimedia interface optical fiber transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115065857A CN115065857A (en) | 2022-09-16 |
| CN115065857B true CN115065857B (en) | 2022-11-25 |
Family
ID=83207776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210984570.3A Active CN115065857B (en) | 2022-08-17 | 2022-08-17 | High-definition multimedia interface optical fiber transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115065857B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116112712B (en) * | 2023-01-12 | 2023-09-26 | 联通沃音乐文化有限公司 | Self-adaptive video-audio video transmission playing method |
| CN116824824B (en) * | 2023-01-28 | 2023-11-21 | 太原杰安易科技有限公司 | Wireless signal acquisition and transmission system based on node controller for coal dressing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208656773U (en) * | 2018-08-14 | 2019-03-26 | 海能电子(深圳)有限公司 | High-definition multimedia interface fiber transmission device |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305078A (en) * | 1992-01-21 | 1994-04-19 | Exfo Electro-Optical Engineering Inc. | Measurement of attenuation of optical fibers using transmitted wavelength and power information |
| JPH118590A (en) * | 1997-04-25 | 1999-01-12 | Oki Electric Ind Co Ltd | Optical transmission system and supervisory and control method therefor |
| JP3938135B2 (en) * | 2003-10-28 | 2007-06-27 | 日本電気株式会社 | Transceiver and transceiver system |
| CN1863015A (en) * | 2005-05-12 | 2006-11-15 | 中兴通讯股份有限公司 | Return-to-zero code light transmitting system and regulating method of automatic optimizing of transmitting terminal performance |
| CN101499853B (en) * | 2008-01-30 | 2012-08-15 | 华为技术有限公司 | Optical path measuring method, optical network and network appliance |
| JP2010068353A (en) * | 2008-09-11 | 2010-03-25 | Victor Co Of Japan Ltd | Optical transmitting/receiving apparatus and single-core two-way optical transmission system |
| JP2011228829A (en) * | 2010-04-16 | 2011-11-10 | Sumitomo Electric Ind Ltd | Cable unit |
| TWI435605B (en) * | 2010-11-29 | 2014-04-21 | Realtek Semiconductor Corp | Network device and network connecting method for building up network connection via high definition multimedia interface |
| CN104202094A (en) * | 2014-08-28 | 2014-12-10 | 北京邮电大学 | Method and device for controlling mode light power |
| CN106656320B (en) * | 2015-10-29 | 2019-04-12 | 阿里巴巴集团控股有限公司 | Fiber channel loss measurement system, method and device for optical quantum communication business |
| CN109347553B (en) * | 2018-11-30 | 2020-05-15 | 中国联合网络通信集团有限公司 | Method and device for measuring attenuation value of optical fiber |
| CN109379131B (en) * | 2018-12-04 | 2022-06-17 | 中国航空工业集团公司西安航空计算技术研究所 | High-reliability optical fiber communication system optical link on-line monitoring device and fault detection method |
| CN209218097U (en) * | 2018-12-18 | 2019-08-06 | 北京中创为南京量子通信技术有限公司 | A kind of quantum key generation system optical fiber link decaying monitoring device |
| CN112787716A (en) * | 2019-11-08 | 2021-05-11 | 中兴通讯股份有限公司 | Fault detection method and device, electronic equipment and computer readable medium |
| CN114640902A (en) * | 2022-03-14 | 2022-06-17 | 中国电子科技集团公司第三十八研究所 | Multi-interface high-speed optical fiber transmission device and method |
-
2022
- 2022-08-17 CN CN202210984570.3A patent/CN115065857B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208656773U (en) * | 2018-08-14 | 2019-03-26 | 海能电子(深圳)有限公司 | High-definition multimedia interface fiber transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115065857A (en) | 2022-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115065857B (en) | High-definition multimedia interface optical fiber transmission device | |
| US8218657B2 (en) | System and method for automatic adjustment of streaming video bit rate | |
| US9231992B2 (en) | Informative data streaming server | |
| EP0729685B1 (en) | System and method for facsimile data transmission | |
| CN101094376A (en) | Method and apparatus for automatic compensation of video signal losses from transmission over conductors | |
| US20100217888A1 (en) | Transmission device, reception device, rate control device, transmission method, and reception method | |
| US8873414B2 (en) | Communication apparatus, communication method, and communication system | |
| CN102223512B (en) | System and device for supporting conversion of multi-format audio-video signal and serial data | |
| CN105812711A (en) | Method and system for optimizing image quality during video call | |
| CN115021870B (en) | Wireless data transmission control system based on deep-sea cable-free autonomous robot | |
| TWI497986B (en) | Video transmitting method and system with video quality adjusting function | |
| US20230291616A1 (en) | Multi-rate bidirectional transmission system | |
| JP2010511310A (en) | Method and apparatus for long-distance video transmission using twisted pair cable | |
| CN105812710A (en) | Method and system for optimizing image quality in video call process | |
| US6973501B1 (en) | Reducing loss in transmission quality under changing network conditions | |
| CN101321278A (en) | Video signal processing apparatus, display apparatus and video signal processing method | |
| CN109194921B (en) | Wireless video monitoring data transmission method based on dynamic power and rate adjustment and wireless video monitoring equipment | |
| CN101150696B (en) | Method and device for improving receiving performance of high-definition multimedia interface | |
| JP5149996B2 (en) | Method and apparatus for optimizing optical receiver identification threshold | |
| CN105227894B (en) | A kind of implementation method and multipoint control unit of video conference | |
| US8155179B2 (en) | Adaptive cable equalizer | |
| CN115102679B (en) | Link parameter adjusting method and device | |
| KR20180079320A (en) | Method and system for flow rate adjustment in content control streaming network | |
| JPH10145309A (en) | Data transmission system | |
| CN111212308B (en) | Method for self-adaptive adjustment of wireless network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |