CN114094404B - Active video cable capable of detecting plugging sequence - Google Patents
Active video cable capable of detecting plugging sequence Download PDFInfo
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- CN114094404B CN114094404B CN202210058203.0A CN202210058203A CN114094404B CN 114094404 B CN114094404 B CN 114094404B CN 202210058203 A CN202210058203 A CN 202210058203A CN 114094404 B CN114094404 B CN 114094404B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
- H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/55—Testing for incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
An active video cable capable of detecting a plugging sequence, comprising: the high-speed video cable plugging device comprises a first end, a second end, a high-speed media signal line and a low-speed control signal line, wherein the high-speed media signal line and the low-speed control signal line are arranged between the first end and the second end, a detection module is arranged in the first end and is used for being connected with a high-speed media signal path in the first end and the low-speed control signal line, the detection module monitors communication of the low-speed control signal, after the low-speed signal communication is completed, whether a high-speed media signal exists on the high-speed media signal line is detected, if the high-speed media signal exists, the active video cable plugging sequence is proved to be correct, and if the high-speed media signal exists, the active video cable plugging sequence is proved to be wrong. The method and the device can judge whether the plugging sequence of the active video cable is correct or not, and send prompt information in real time on line when the plugging sequence is wrong, so that the use experience of a terminal user on the active video cable is improved.
Description
Technical Field
The invention relates to the field of active cables, in particular to an active video cable capable of detecting a plugging sequence and sending a prompt.
Background
With the development of high-speed wireless networks, high-speed USB, and high-definition video, cables such as HDMI, DP, DVI are increasingly commonly used. Referring to fig. 1, a passive video cable in the prior art is shown, a first end 11 is connected with a Source end (Source), a second end 12 is connected with a Sink end (Sink), and the first end 11 and the second end 12 are not distinguished by a line sequence and can be arbitrarily plugged.
To transmit video signals over greater distances, active cables are increasingly replacing pure copper cables. Protocols such as HDMI, DP, and DVI all stipulate that video and audio data are transmitted from a source end to a receiving end to a point in a main link, i.e., signals are transmitted from the source end to the receiving end in a single direction, and the application of an active cable greatly prolongs the transmission distance of video signals, but brings a small inconvenience because signals can be transmitted in a single direction only between two active modules, i.e., the end of the active cable cannot be plugged in a forward or reverse direction.
Specifically, as shown in fig. 2, which shows a schematic diagram of an active cable in the prior art, a first end 21 is connected to a Source end (Source), a second end 22 is connected to a Sink end (Sink), a high-speed media signal line 26 between the first end 21 and the second end 22 may be a copper cable or an optical fiber, a first active module 23 is provided in the first end 21 for transmitting data sent by the Source end to the second end 22 in a certain format, and a second active module 24 is provided in the second end 22 for receiving the data sent by the first end 21 and transmitting the data to the Sink end (Sink). If the positions of the first end 21 and the second end 22 are interchanged, since the first active module 23 is mainly used for transmitting data and the second active module 24 is mainly used for receiving data, the data cannot be transmitted in the active cable, and finally the display device is not bright.
In a specific flow, a low-speed control signal line 27 is further provided between the first end and the second end of the active cable, after the video source and the display are connected by a cable, a series of communications are performed between the video source and the display through the low-speed control signal line 27, and the main content of the communications is that the signal source reads relevant information of the display, including information of a manufacturer of the display, a maximum supported resolution, a maximum supported size and the like. When the low-speed handshake is completed, the signal source outputs a high-speed video signal. Because the low-speed control signal line 27 mainly realizes with copper direct connection, when the active cable inserts between source end and receiving terminal backward, low-speed signal communication still can be accomplished, the signal source also can output high-speed video signal, nevertheless because high-speed media signal can only one-way transmission between first active module 23 and second active module 24, so if the grafting order mistake of first end 21 and second end 22, display device can not lighted, and the unable timely outside of cable is informed and is connect the contrary, is unfavorable for quick location use trouble. This is not the case for the passive cable of fig. 1, i.e. the first end 11 and the second end 12 are still lit up even after being interchanged.
Therefore, how to identify the plugging sequence of the active cable and timely position the active video cable, which results in that the high-speed signal sent by the signal source cannot be transmitted to the receiving end due to the reverse connection of the connector, so that the display device cannot be lighted up and the system cannot work normally, is a technical problem to be solved urgently in the prior art.
Disclosure of Invention
The invention aims to provide an active video cable capable of detecting a plugging sequence, which can be identified after the active video cable is plugged reversely, and further can send prompt information in real time on line, so that the use experience of a terminal user on the active video cable is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
an active video cable capable of detecting a plugging sequence, comprising:
a first terminal, a second terminal, and a high speed media signal line and a low speed control signal line between the first terminal and the second terminal,
the first end is used for connecting the source end, and the first end is provided with a first active module and used for receiving the media signal sent by the source end and sending the media signal to the second end in a certain format;
the second end is used for connecting a receiving end, and is provided with a second active module which is used for receiving the media signal sent by the first active module and transmitting the received media signal to the receiving end;
the low-speed control signal line is used for transmitting a low-speed control signal, and the high-speed media signal line is used for transmitting a high-speed media signal;
the first end is provided with a detection module which is used for being connected with the high-speed media signal path in the first end and detecting whether high-speed media signal transmission exists or not, and when the detection module does not detect the high-speed media signal transmission within a certain time, the active video cable is judged to be reversely connected, and the plugging sequence is wrong.
Optionally, the detection module is further connected to the low-speed control signal line, and is configured to monitor a low-speed signal path between the first end and the second end, analyze the received low-speed signal data packet until the low-speed signal communication is completed, detect whether a high-speed media signal is present on the high-speed media signal line after the low-speed signal communication is completed, prove that the active video cable is correctly plugged if a high-speed media signal is present, and prove that the active video cable is incorrectly plugged if the high-speed media signal is present.
Optionally, the detection module is connected to the high-speed media signal path in the first end, and is connected to the high-speed media signal line at the first end, or is connected to the electrode pin of the high-speed media signal between the source end and the first end.
Optionally, when the detection module finds that the active video cable plugging sequence is wrong, an alarm signal is sent out.
Optionally, the device further comprises an alarm module for giving out an alarm when receiving the alarm signal.
Optionally, the warning is an audible alarm, an optical alarm or an electrical signal alarm.
Optionally, the detection module is a separate module or integrated inside the first active module.
Optionally, the active video cable is a DP, HDMI or DVI cable.
The invention has the following advantages:
after the active video cable connector is reversely inserted, the detection module judges whether high-speed signal transmission is needed or not by monitoring a low-speed signal path between the first end 31 and the second end 32, judges whether the plugging sequence of the active video cable is correct or not, and sends prompt information in real time and on line when the plugging sequence is wrong, so that the use experience of a terminal user on the active video cable is improved.
Drawings
FIG. 1 is a schematic diagram of a passive cable according to the prior art;
FIG. 2 is a schematic diagram of an active cable according to the prior art;
FIG. 3 is a schematic diagram of an active video cable capable of detecting a plugging sequence in accordance with a specific embodiment of the present invention;
fig. 4 is a flow chart of an active video cable identification patching sequence, in accordance with a specific embodiment of the present invention.
The technical characteristics respectively designated by the reference numerals in the figures are as follows:
11. a first end; 12. a second end; 21. a first end; 22. a second end; 23. a first active module; 24. a second active module; 26. a high-speed media signal line; 27. a low speed control signal line; 31. a first end; 32. a second end; 33. a first active module; 34. a second active module; 35. a detection module; 36. a high-speed media signal line; 37. and a low-speed control signal line.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The problem of the plugging sequence existing in the active cable, as described in the background art, is that the high-speed video signal can only be transmitted between two active modules of the active video cable in a single direction, and the low-speed control signal line in the high-speed video cable is usually directly connected between the two active modules by a copper wire, after the low-speed signal communication is successful, the signal source end can directly send out the high-speed signal, when the active video cable is reversely connected, the high-speed signal cannot be transmitted, the display device cannot be lighted, and the external world cannot quickly locate the use fault of the active video cable.
Therefore, the invention consists in: the detection module is arranged in the first end connected with the source end and is connected with the high-speed media signal line in the first end, and when the detection module does not detect the input of the high-speed media signal within a certain time, the active video cable is judged to be reversely connected. Furthermore, the detection module can be connected with a low-speed control signal line, integrates the handshaking condition of the low-speed signal line and the transmission condition of the high-speed media signal to judge whether the active video cable is reversely connected and send out an alarm signal.
Specifically, referring to fig. 3, a schematic diagram of an active video cable capable of detecting a plugging sequence is shown, according to a specific embodiment of the present invention, which includes:
the method comprises the following steps: a first terminal 31, a second terminal 32, and a high speed media signal line 36 and a low speed control signal line 37 between the first terminal and the second terminal,
the first end 31 is configured to connect to a source end, and the first end 31 has a first active module 33, configured to receive a media signal sent by the source end and send the media signal to a second end 32 in a certain format;
the second end 32 is used for connecting a receiving end, and the second end 32 is provided with a second active module 34, which is used for receiving the media signal sent by the first active module 33 and transmitting the received media signal to the receiving end;
the low-speed control signal line 37 is used for transmitting a low-speed control signal, and the high-speed media signal line 36 is used for transmitting a high-speed media signal;
the first end 31 has a detection module 35 for connecting with the high-speed media signal path in the first end 31 and detecting whether there is high-speed media signal transmission, and when the detection module does not detect high-speed media signal transmission within a certain time, it is determined that the active video cable is reversely connected and the plugging sequence is wrong.
Specifically, the detection module 35 is connected to the high-speed media signal path in the first end 31, may be connected to the high-speed media signal line 36 of the first end, and may also be connected to an electrode pin of the high-speed media signal between the source end and the first end 31.
Further, the detection module 35 is further connected to the low-speed control signal line 37, and is configured to monitor a low-speed signal path between the first end 31 and the second end 32, receive and analyze a low-speed signal data packet until it is detected that the low-speed signal communication is completed, and detect whether a high-speed media signal is present on the high-speed media signal line after the low-speed signal communication is completed, and if a high-speed media signal is present, it is verified that the active video cable is correctly plugged, and is not reversely plugged, otherwise, it is verified that the active video cable is incorrectly plugged, and is reversely plugged.
Further, when the detection module 35 finds that the plugging sequence of the active video cable is wrong, an alarm signal is sent out.
In particular, referring to fig. 4, the working flow of the detection module of the active video cable according to the present invention is shown.
Furthermore, the device is also provided with an alarm module which can send out a warning when receiving the alarm signal.
The warning may be an audible alarm, an optical alarm, an electrical signal alarm.
The detection module 35 may be a separate module or integrated inside the first active module.
The active video cable is a DP, HDMI or DVI cable.
Therefore, after the active video cable connector is reversely plugged, the detection module monitors a low-speed signal path between the first end 31 and the second end 32 to judge whether high-speed signal transmission is needed, judge whether the plugging sequence of the active video cable is correct, and send out prompt information in real time and on line when the plugging sequence is wrong, so that the use experience of a terminal user on the active video cable is improved.
While the invention has been described in further detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An active video cable capable of detecting a plugging sequence, comprising:
a first terminal, a second terminal, and a high speed media signal line and a low speed control signal line between the first terminal and the second terminal,
the first end is used for connecting the source end, and the first end is provided with a first active module and used for receiving the media signal sent by the source end and sending the media signal to the second end in a certain format;
the second end is used for connecting a receiving end, and is provided with a second active module which is used for receiving the media signal sent by the first active module and transmitting the received media signal to the receiving end;
the low-speed control signal line is used for transmitting a low-speed control signal, and the high-speed media signal line is used for transmitting a high-speed media signal;
the first end is provided with a detection module which is used for connecting with a high-speed media signal passage in the first end and detecting whether high-speed media signal transmission exists or not, and when the detection module does not detect the high-speed media signal transmission within a certain time, the active video cable is judged to be reversely connected, and the plugging sequence is wrong;
the detection module is also connected with the low-speed control signal line and used for monitoring a low-speed signal passage between the first end and the second end, analyzing the received low-speed signal data packet until the low-speed signal communication is completed, detecting whether a high-speed media signal exists on the high-speed media signal line after the low-speed signal communication is completed, and if the high-speed media signal exists, the active video cable plugging sequence is proved to be correct, otherwise, the active video cable plugging sequence is proved to be wrong.
2. The active video cable of claim 1,
the detection module is connected with a high-speed media signal path in the first end, is connected with a high-speed media signal line of the first end, or is connected with an electrode pin of a high-speed media signal between the source end and the first end.
3. The active video cable of claim 2,
when the detection module finds that the plugging sequence of the active video cable is wrong, an alarm signal is sent out.
4. The active video cable of claim 3,
and the alarm module is also provided for giving out an alarm when receiving the alarm signal.
5. The active video cable of claim 4,
the warning is an audible alarm, an optical alarm or an electrical signal alarm.
6. The active video cable of claim 5,
the detection module is a separate module or integrated inside the first active module.
7. Active video cable according to any of claims 3 to 6,
the active video cable is a DP, HDMI or DVI cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210058203.0A CN114094404B (en) | 2022-01-19 | 2022-01-19 | Active video cable capable of detecting plugging sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210058203.0A CN114094404B (en) | 2022-01-19 | 2022-01-19 | Active video cable capable of detecting plugging sequence |
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| Publication Number | Publication Date |
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| CN114094404A CN114094404A (en) | 2022-02-25 |
| CN114094404B true CN114094404B (en) | 2022-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7793022B2 (en) * | 2007-07-25 | 2010-09-07 | Redmere Technology Ltd. | Repeater for a bidirectional serial bus |
| CN102231863B (en) * | 2011-06-02 | 2013-03-27 | 南京中兴力维软件有限公司 | Transmission method of multichannel video streams and system thereof |
| CN103501425B (en) * | 2013-09-25 | 2017-04-12 | 成都航天通信设备有限责任公司 | Communication control method for TDD high-speed image transmission system |
| KR101565927B1 (en) * | 2014-05-15 | 2015-11-04 | 오종현 | The apparatus of set top box for ultra-high definition broadcasting service |
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