CN106788688A - Signal transmitting equipment, signal receiver, video-signal transmission method and system - Google Patents

Signal transmitting equipment, signal receiver, video-signal transmission method and system Download PDF

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Publication number
CN106788688A
CN106788688A CN201611025994.8A CN201611025994A CN106788688A CN 106788688 A CN106788688 A CN 106788688A CN 201611025994 A CN201611025994 A CN 201611025994A CN 106788688 A CN106788688 A CN 106788688A
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CN
China
Prior art keywords
signal
standby
transmission
main
equipment
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CN201611025994.8A
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Chinese (zh)
Inventor
汪志水
罗海生
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Tongfang Industrial Information Technology Co Ltd
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Tongfang Industrial Information Technology Co Ltd
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Priority to CN201611025994.8A priority Critical patent/CN106788688A/en
Publication of CN106788688A publication Critical patent/CN106788688A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0779—Monitoring line transmitter or line receiver equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention discloses a kind of signal transmitting equipment, signal receiver, video-signal transmission method and system, wherein signal transmitting equipment includes：First communication interface, main signal transmitter module, standby signal emission module, the second communication interface and third communication interface；First communication interface connects the input of main signal transmitter module and the input of standby signal emission module respectively, and the output end of main signal transmitter module connects the second communication interface, the output end connection third communication interface of standby signal emission module；First communication interface is used to receive the vision signal of video source transmission；It is main transmission signal that main signal transmitter module is used to change vision signal, and is sent to signal receiver by the second communication interface；Standby signal emission module is used to for the vision signal to be converted to standby transmission signal, and is sent to signal receiver by third communication interface.The embodiment of the present invention can make the continuously display normal vision signal of front end display device, improve Consumer's Experience.

Description

Signal transmitting equipment, signal receiver, video-signal transmission method and system
Technical field
The present invention relates to technical field of video signal, and in particular to a kind of signal transmitting equipment, signal receiver, Video-signal transmission method and system.
Background technology
Current video signal Transmission system may include video source, signal transmitting terminal and signal receiving end, signal switching apparatus And front end display device.The vision signal that signal transmitting terminal will be collected from video source passes through signal switching apparatus and signal Receiving terminal transmits and carries out vision signal to front end display device and show.In current video signal transmission system, each signal Video signal transmission to front end display device is only existed a corresponding unique transmission link, i.e. signal switching by transmitting terminal Equipment is that signal transmitting terminal can only configure a transmission link with signal receiving end, when any in video signal transmission system When node occurs transmission abnormality (such as transmission link failure or devices in system break down), front end display device can be caused to show Vision signal exception.
For example, video signal transmission system as shown in Figure 1, signal transmitting terminal and signal receiving end are equal in the system It is optical transmitter and receiver, the vision signal gathered from video source can be converted to fiber-optic signal and is transmitted by signal switching apparatus by it, Signal switching apparatus in the system multiple independent signal transmission passages for the transmission of multi-channel optical fibre signal is provided.Such as signal hair The vision signal that jet device 1 will be gathered from video source 1 is transmitted by the transmission link of signal switching apparatus and signal receiver 1 Shown to front end display device 1, if above-mentioned transmission link breaks down, the optical fiber link of such as transmission signal breaks down, Can then cause occur vision signal display exception in front end display device 1, or as signal switching apparatus break down, can lead Cause all front end display devices in the system to show abnormal, reduce Consumer's Experience.
The content of the invention
The embodiment of the invention provides a kind of signal transmitting equipment, signal receiver, video-signal transmission method and be System, can make the continuously display normal vision signal of front end display device, improve Consumer's Experience.
In a first aspect, the embodiment of the present invention provides a kind of signal transmitting equipment, including：
First communication interface, main signal transmitter module, standby signal emission module, the second communication interface and the third communication connect Mouthful；
The input and the standby signal that first communication interface connects the main signal transmitter module respectively launch mould The input of block, the output end of the main signal transmitter module connects second communication interface, the standby signal emission module Output end connect the third communication interface；
First communication interface is used to receive the vision signal of video source transmission；
It is main transmission signal that the main signal transmitter module is used to change the vision signal, and logical by described second Letter interface is sent to signal receiver；
The standby signal emission module is used to for the vision signal to be converted to standby transmission signal, and by the threeway Letter interface is sent to the signal receiver.
Optionally, the main signal transmitter module includes the first signal conversion unit and/or the first Signal coding unit；
Wherein, first signal conversion unit is used to for the vision signal to be converted to fiber-optic signal or HDBaseT letters Number；
The first Signal coding unit is used to for the vision signal to be encoded to network signal.
Optionally, the standby signal emission module includes secondary signal converting unit and/or secondary signal coding unit；
Wherein, the secondary signal converting unit is used to for the vision signal to be converted to fiber-optic signal or HDBaseT letters Number；
The secondary signal coding unit is used to for the vision signal to be encoded to network signal.
Optionally, also including signal pre-processing module, wherein：
The input of the signal pre-processing module connects first communication interface, the signal pre-processing module it is defeated Go out end and connect the input of the main signal transmitter module and the input of the standby signal emission module respectively；
The signal pre-processing module is used to carry out pretreatment operation to the vision signal of video source transmission, described pre- Treatment operation includes at least one in signal format conversion, overlaying character, signal scaling.
Optionally, also including fourth communication interface, wherein：
The fourth communication interface connects the input of the signal pre-processing module；
The fourth communication interface goes out display device for connection ring.
Second aspect, the embodiment of the invention provides a kind of signal receiver, including：
First communication interface, the second communication interface, main signal receiver module, standby signal receiving module, signal selection module And third communication interface；
First communication interface connects the input of the main signal receiver module, and second communication interface connects institute State the input of standby signal receiving module, the output end of the main signal receiver module and the output for signal receiving module End connects the input of the signal selection module respectively, and the output end of the signal selection module connects the third communication and connects Mouthful；
First communication interface is used to receive the main transmission signal of signal transmitting equipment transmission；
Second communication interface is used to receive the standby transmission signal of the signal transmitting equipment transmission；
The main signal receiver module is used to for the main transmission signal to be converted to main video signal；
The standby signal receiving module is used to for the standby transmission signal to be converted to standby vision signal；
The signal selection module is used to select the main video signal or the standby vision signal, and the video that will be selected Signal is transmitted to front end display device by the third communication interface.
Optionally, the main signal receiver module includes the first signal conversion unit and/or the first signal decoding unit；
Wherein, if the main transmission signal is fiber-optic signal or HDBaseT signals, first signal conversion unit is used for The fiber-optic signal or the HDBaseT signals are converted into the main video signal；
If the main transmission signal is network signal, first signal decoding unit is used for network signal decoding It is the main video signal.
Optionally, the standby signal emission module includes secondary signal converting unit and/or secondary signal decoding unit；
Wherein, if the standby transmission signal is fiber-optic signal or HDBaseT signals, the secondary signal converting unit is used for The fiber-optic signal or the HDBaseT signals are converted into the standby vision signal；
If the main transmission signal is network signal, the secondary signal decoding unit is used for network signal decoding It is the standby vision signal.
Optionally, also including signal post-processing module, wherein：
The input of the signal post-processing module connects the output end of the signal selection module, the signal post-processing The output end of module connects the third communication interface；
The signal post-processing module is used to for the vision signal of the selection to carry out post-processing operation, the post processing behaviour Work includes at least one in signal format control, image scaling, the adjustment of image frame per second.
The third aspect, the embodiment of the invention provides a kind of video signal transmission system, including：
Video source, signal transmitting equipment, signal receiver and front end display device；
The output end of the video source connects the input that the signal launches equipment；
The output end of the signal transmitting equipment connects the input of the signal receiver；
The output end of the signal receiver connects the front end display device；
The signal transmitting equipment includes signal transmitting equipment any one of first aspect；
The signal receiver includes signal receiver any one of second aspect.
Fourth aspect, the embodiment of the invention provides a kind of video signal transmission system, including：
Video source, signal transmitting equipment, main signal switching equipment, standby signal switching apparatus, signal receiver and preceding End display device；
The output end of the video source connects the input that the signal launches equipment；
First output end of the signal transmitting equipment connects the input that the main signal switches equipment；
The input of the second output end connection standby signal switching apparatus of the signal transmitting equipment；
The output end of the main signal switching equipment is connected the letter respectively with the output end of the standby signal switching apparatus The input of number receiving device；
The output end of the signal receiver connects the front end display device；
The signal transmitting equipment includes signal transmitting equipment any one of first aspect；
The signal receiver includes signal receiver any one of second aspect.
5th aspect, the embodiment of the invention provides a kind of video-signal transmission method, including：
It is main transmission signal and standby transmission signal that signal launch equipment to change vision signal；
The signal transmitting equipment sends to signal receiver the main transmission signal；
The signal transmitting equipment sends to the signal receiver the standby transmission signal.
Optionally, the main transmission signal is sent to signal receiver and included by the signal transmitting equipment：
The main transmission signal is switched equipment and sent to signal reception by the signal transmitting equipment by main signal Equipment；
The signal transmitting equipment sends to the signal receiver the standby transmission signal to be included：
The standby transmission signal is sent to the signal and received by the signal transmitting equipment by standby signal switching apparatus Equipment.
Optionally, the standby transmission signal is sent to the signal receiver and included by the signal transmitting equipment：
The signal transmitting equipment sends while to the signal receiver the main transmission signal, will be described standby Transmission signal is sent to the signal receiver；Or,
The signal launches equipment after the reserve link enabling signal that the signal receiver sends is received, by institute Standby transmission signal is stated to send to the signal receiver.
Optionally, vision signal change into main transmission signal and for before transmission signal by signal transmitting equipment, institute Stating method also includes：
The video source signal that the signal transmitting equipment interconnection is received carries out pretreatment operation to obtain the vision signal, The pretreatment operation includes at least one in signal format conversion, overlaying character, signal scaling.
Optionally, methods described also includes：
The video source signal is transmitted to ring and goes out display device by the signal transmitting equipment.
6th aspect, the embodiment of the invention provides a kind of video-signal transmission method, including：
Signal receiver detects whether main transmission signal is effective；
If it is, the main transmission signal is converted to main video signal by the signal receiver, and by the main view Frequency signal transmission is to front end display device；
If it has not, the standby transmission signal that the signal receiver will be received is converted to standby vision signal, and will be described For video signal transmission to the front end display device.
Optionally, the signal receiver detects whether main transmission signal effectively includes：
Whether the signal receiver detection receives main transmission signal in preset duration；Or,
Whether the signal format that the signal receiver detection is received is main transmission signal form；Or,
Whether the signal condition of the main transmission signal that the signal receiver detection is received is stablized.
Optionally, methods described also includes：
The signal receiver receives described while the main transmission signal that apparatus for transmitting signal sends is received The described standby transmission signal that apparatus for transmitting signal sends.
Optionally, if it has not, the standby transmission signal that the signal receiver will be received is transmitted to front end display device Before, methods described also includes：
The signal receiver is to signal transmitting equipment transmission reserve link enabling signal；
The signal receiver receives the standby transmission signal that the signal transmitting equipment sends.
Optionally, methods described also includes：
The main video signal or the standby vision signal are carried out post-processing operation by the signal receiver, described Post-processing operation includes at least one in signal format control, image scaling, the adjustment of image frame per second.
7th aspect, the embodiment of the invention provides a kind of signal transmitting equipment, and the signal transmitting equipment includes function Unit, the functional unit is used to perform the part or all of step described in the aspect either method of the embodiment of the present invention the 5th Suddenly.
Eighth aspect, the embodiment of the invention provides a kind of signal receiver, and the signal receiver includes function Unit, the functional unit is used to perform the part or all of step described in the aspect either method of the embodiment of the present invention the 6th Suddenly.
In the embodiment of the present invention, signal launches equipment by configuring main signal transmitter module with standby signal emission module, energy It is enough to send main transmission signal and standby transmission signal to signal receiver, and then in the principal communication for transmitting main transmission signal When link occurs abnormal, launching the standby transmission signal that equipment sends by signal makes that front end display device is continuously display normally to be regarded Frequency signal, improves Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of video signal transmission system disclosed in prior art；
Fig. 2 is a kind of structural representation of video signal transmission system disclosed in the embodiment of the present invention；
Fig. 3 is the structural representation of another video signal transmission system disclosed in the embodiment of the present invention；
Fig. 4 is the structural representation that a kind of signal disclosed in the embodiment of the present invention launches equipment；
Fig. 5 is a kind of structural representation of signal receiver disclosed in the embodiment of the present invention；
Fig. 6 is a kind of schematic flow sheet of video-signal transmission method disclosed in the embodiment of the present invention；
Fig. 7 is the schematic flow sheet of another video-signal transmission method disclosed in the embodiment of the present invention；
Fig. 8 is the unit composition figure that a kind of signal disclosed in the embodiment of the present invention launches equipment；
Fig. 9 is a kind of unit composition figure of signal receiver disclosed in the embodiment of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing etc. are for distinguishing Different objects, rather than for describing particular order.Additionally, term " comprising " and " having " and their any deformations, it is intended that It is to cover non-exclusive including.Process, method, system, product or the equipment for for example containing series of steps or unit do not have The step of having listed or unit are defined in, but alternatively also include the step of not listing or unit, or alternatively also wrapped Include for these processes, method, product or other intrinsic steps of equipment or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can be wrapped in conjunction with the embodiments Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and Implicitly understand, embodiment described herein can be combined with other embodiments.
Video signal transmission system disclosed in the embodiment of the present invention is described below.
Fig. 2 is referred to, Fig. 2 is a kind of structural representation of video signal transmission system disclosed in the embodiment of the present invention.
As shown in Fig. 2 the video signal transmission system includes 201, signal transmitting equipment 202, one of a video source Individual signal receiver 203 and a front end display device 204.The output end connection signal transmitting equipment 202 of video source 201 Input, signal transmitting equipment 202 output end connect signal receiver 203 input, signal receiver 203 Output end connects front end display device 204.Wherein, signal transmitting equipment 202 includes communication interface 2021 and communication interface 2022 are connected with the communication interface 2031 of signal receiver 203 with communication interface 2032 respectively, to realize that signal launches equipment 202 can respectively send main transmission signal and standby transmission letter by above-mentioned two communication link to signal receiver 203 respectively Number.
It should be noted that due to only including a video source when the system, then signal transmitting equipment 202 can be by optical fiber Data wire and/or twisted-pair feeder are directly connected with signal receiver 203, and also can switch equipment by main signal switches with standby signal Equipment is connected with signal receiver 203.
The communication interface 2021 of signal transmitting equipment 202 transmits main biography to the communication interface 2031 of signal receiver 203 Defeated signal, the communication interface 2022 of signal transmitting equipment 202 transmits standby transmission to the communication interface 2032 of signal receiver 203 Signal.Above-mentioned communication interface can support that two-way signaling is transmitted or unidirectional signal transfer.Main transmission signal can for fiber-optic signal, Any one in HDBaseT signals or network signal, standby transmission signal can be network signal, HDBaseT signals or optical fiber Any one of signal.
Wherein, the signal that the structure of signal transmitting equipment 202 can be found in shown in Fig. 4 launches the structural representation of equipment 400, The structure of signal receiver 203 can be found in the structural representation of the signal receiver 500 shown in Fig. 5.Signal launches equipment 202 can be found in the video-signal transmission method shown in Fig. 6 to the method for the transmission signal of signal receiver 203, and signal is received and set Standby 203 receive the video-signal transmission method that be can be found in from the method for signal transmitting 202 transmission signals of equipment shown in Fig. 7.
Optionally, the system may also include ring and go out display device, and the ring goes out display device for backstage personnel control's signal The video source signal of transmitting equipment collection.Signal transmitting equipment 202 may also include another in addition to above-mentioned two communication interface Communication interface, another communication interface connection ring goes out display device.Or, the ring goes out the output that display device connects video source End, the embodiment of the present invention is not construed as limiting.
Fig. 3 is referred to, Fig. 3 is the structural representation of another video signal transmission system disclosed in the embodiment of the present invention.
As shown in figure 3, the video signal transmission system includes N number of 311~3N1 of video source, N number of signal launches equipment 312 ~3N2, main signal switching equipment 313, standby signal switching apparatus 314, N number of 315~3N5 of signal receiver, and N number of front end 316~3N6 of display device.Wherein, main signal switching equipment 313 is at least configured with N number of input and N number of output end；Standby letter Number switching equipment 314 is configured with N number of input and N number of output end.Each signal transmitting equipment at least configures two and possesses letter The communication interface of number emission function, each signal receiver at least configures two communication interfaces for possessing signal receiving function. Communication interface connection main signal in signal transmitting equipment switches an input of equipment 313, signal transmitting equipment In another communication interface standby signal switching apparatus 314 of connection an input.A communication in signal receiver Interface connection main signal switches an output end of equipment 313, and another communication interface connection in the signal receiver is standby One output end of signal switching apparatus 314.I.e. main signal switching equipment 313 is respectively signal with standby signal switching apparatus 314 Transmitting equipment provides transmission signal link channel with corresponding signal receiver.In the system, above-mentioned communication interface is supported double To signal transmission or unidirectional signal transfer.Signal launches equipment and switches equipment to the signal receiver main biography of transmission by main signal Defeated signal, signal transmitting equipment passes through standby signal switching apparatus and sends standby transmission signal to signal receiver.Main transmission signal Can be any one in fiber-optic signal, HDBaseT signals or network signal, standby transmission signal can for network signal, Any one of HDBaseT signals or fiber-optic signal.The signal type of main transmission signal and standby transmission signal can be with identical or not Together.The type that main signal switches equipment and standby signal switching apparatus can be with identical or differ, main signal switching equipment or standby letter Number switching equipment can be but be not limited to splicing device, matrix, KVM (Keyboard Video Mouse, multicomputer) square Battle array, any one in the network switch.For example, main signal switching equipment can be splicing device, for transmission signal Type is the main transmission signal of fiber-optic signal, and standby signal switching apparatus can be the network switch, be net for transmission of signal-type The standby transmission signal of network signal.
The exportable DVI of video source (Digital Visual Interface, digital visual interface), VGA (Video Graphics Array, Video Graphics Array), HDMI (HDMI, High Definition Multimedia Interface) etc. signal.Signal transmitting equipment can be acquired and process to the signal of video source output, and The signal type that can be supported according to signal switching apparatus converts a signal into main transmission signal and standby transmission signal, and can be respectively Switch equipment and standby signal switching apparatus by main signal to transmit to signal receiver main transmission signal and standby transmission signal, Signal receiver can give tacit consent to the main transmission signal of selection, when main transmission signal is invalid, standby transmission signal may be selected, and will selection Signal be converted to vision signal, the vision signal after conversion can also be processed, make the aobvious of its matching front end display device Show form.Wherein, front end display device can support the signal formats such as display DVI, VGA, HDMI.
Specifically, the signal that the structure of 312~3N2 of signal transmitting equipment can be found in shown in Fig. 4 launches the structure of equipment 400 Schematic diagram, the structure of 315~3N5 of signal receiver can be found in the structural representation of the signal receiver 500 shown in Fig. 5. The video that signal transmitting 312~3N2 of equipment can be found in shown in Fig. 6 to the method for signal receiver 315~3N5 transmission signals is believed Number transmission method, the method that 315~3N5 of signal receiver is received from signal transmitting 312~3N2 of equipment institutes transmission signal can join Video-signal transmission method as shown in Figure 7.
Optionally, the system may also include ring and go out display device, and the ring goes out display device for backstage personnel control from regarding The video source signal of frequency source collection.Signal transmitting 312~3N2 of equipment may also include another in addition to above-mentioned two communication interface Communication interface, another communication interface connection ring goes out display device.Or, the ring goes out the output that display device connects video source End, the embodiment of the present invention is not construed as limiting.
In the embodiment of the present invention, equipment is launched by signal and transmits main transmission signal and standby transmission to signal receiver Signal, when the transmission link for transmitting main transmission signal occurs abnormal, i.e., the main transmission signal that signal receiver is received is lost During effect, the standby transmission signal for receiving can be sent to front end display device and be shown by signal receiver.So as to it ensure that before The end continuously display normal vision signal of display device, improves Consumer's Experience.
A kind of device embodiment of the invention is described below.Device embodiment in the embodiment of the present invention can be applied In the system of above-described embodiment description.
Fig. 4 is referred to, Fig. 4 is the structural representation that a kind of signal disclosed in the embodiment of the present invention launches equipment.The signal Transmitting equipment 400 includes that the first communication interface 401, main signal transmitter module 402, the standby communication of signal emission module 403, second connect Mouth 404 and third communication interface 405.
Wherein, first communication interface 401 connects the input of the main signal transmitter module 402 and described standby respectively The input of signal emission module 403, the output end of the main signal transmitter module 402 connects second communication interface 404, The output end of the standby signal emission module 403 connects the third communication interface 405.
First communication interface 401 can connect the video source in said system, the video source letter for receiving video source transmission Number and be converted into vision signal, and then the vision signal can be transmitted separately to main signal transmitter module and standby signal transmitting Module；It is main transmission signal that main signal transmitter module 402 can change the vision signal, and main transmission signal is transmitted to second Communication interface 404；The vision signal can be converted to standby transmission signal by standby signal emission module 403, and will be passed for transmission signal Transport to third communication interface 405；Second communication interface 404 directly can be transmitted to signal receiver main transmission signal, or logical Main signal switching equipment is crossed to transmit to signal receiver main transmission signal；Third communication interface 405 can directly by standby transmission Signal transmission will be transmitted to signal receiver to signal receiver, or by standby signal switching apparatus for transmission signal.
Above-mentioned communication interface can support that bi-directional signal communication or one way signal communicate.
Optionally, main signal transmitter module 402 may include the first signal conversion unit and/or the first Signal coding unit. Main signal transmitter module 402 can be according to the signal type arranged with signal receiver or the main signal being connected switching equipment institute The signal transmission type of support, fiber-optic signal or HDBaseT signals are converted to by the first signal conversion unit by vision signal, Or vision signal is converted to by network signal by the first Signal coding unit.Such as when main signal switching equipment is splicing When device, matrix or KVM matrixes, vision signal can be converted to optical fiber by main signal transmitter module by the first signal conversion unit to be believed Number or HDBaseT signals, when main signal switching equipment be the network switch when, vision signal is converted into network signal.Wherein, First signal conversion unit can be FPGA (Field Programmable Gate Array, field programmable gate array) signal Conversion equipment.It should be noted that main signal transmitter module 402 can simultaneously include that the first signal conversion unit and the first signal are compiled Code unit, may also comprise the first signal conversion unit or the first Signal coding unit.
Optionally, standby signal emission module 403 may include secondary signal converting unit and/or secondary signal coding unit. Standby signal emission module 403 can be according to the signal type arranged with signal receiver or the standby signal switching apparatus institute being connected The signal transmission type of support, fiber-optic signal or HDBaseT signals are converted to by secondary signal converting unit by vision signal, Or vision signal is converted to by network signal by secondary signal coding unit.Such as when standby signal switching apparatus are splicing When device, matrix or KVM matrixes, vision signal can be converted to optical fiber and believed by standby signal emission module by secondary signal converting unit Number or HDBaseT signals, when main signal switching equipment be the network switch when, vision signal is converted into network signal.Wherein, Secondary signal converting unit can be FPGA (Field Programmable Gate Array, field programmable gate array) signal Conversion equipment.It should be noted that standby signal emission module 403 can simultaneously include that secondary signal converting unit and secondary signal are compiled Code unit, may also comprise the second converting unit or secondary signal coding unit.
Wherein, main transmission signal can be identical with the signal type of standby transmission signal or differs.Main signal transmitter module 402 It is simultaneously operable with standby signal emission module 403, i.e. the signal transmitting main transmission signal of the simultaneous transmission of equipment 400 and standby transmission is believed Number.Main signal transmitter module 402 is worked when also can be different from standby signal emission module 403, and such as signal transmitting equipment 400 is first passed through Main signal transmitter module 402 sends main transmission signal, after reserve link open signal is received, by standby signal emission module 403 send standby transmission signal.
Optionally, signal transmitting equipment 400 may also include signal pre-processing module 406.
The output end of the signal pre-processing module 406 connect respectively the input of the main signal transmitter module 402 with The input of the standby signal emission module 403；
The signal pre-processing module 406 is used to carry out pretreatment operation, institute to the vision signal of video source transmission State at least one of pretreatment operation in signal format conversion (being such as converted into rgb signal), overlaying character, signal scaling Kind.
Optionally, signal transmitting equipment 400 may also include fourth communication interface 407.
Wherein, the fourth communication interface 407 connects the input of the signal pre-processing module 406；
The fourth communication interface 407 goes out display device for connection ring, so that backstage is easy to be checked in signal transmitting terminal Certain video source signal all the way.
In the embodiment of the present invention, signal launches equipment by configuring main signal transmitter module and standby signal emission module, energy It is enough to send two paths of signals to signal receiver, during so as to occurring abnormal in the transmission link for transmitting main transmission signal, i.e. signal When the main transmission signal that receiving device is received fails, the standby transmission signal for receiving can be sent to front end and shown by signal receiver Show that equipment is shown.The continuously display normal vision signal of front end display device is ensure that, Consumer's Experience is improved.
Fig. 5 is referred to, Fig. 5 is a kind of structural representation of signal receiver disclosed in the embodiment of the present invention.The signal Receiving device 500 includes that the first communication interface 501, the second communication interface 502, main signal receiver module 503, standby signal receive mould Block 504, signal selection module 505 and third communication interface 506.
Wherein, first communication interface 501 connects the input of the main signal receiver module 503, and described second leads to Letter interface 502 connects the input of the standby signal receiving module 504, the output end of the main signal receiver module 503 and institute The output end for stating standby signal receiving module 504 connects the input of the signal selection module 505, the signal behavior mould respectively The output end of block 505 connects the third communication interface 506.
First communication interface 501 is used to receive the main transmission signal of signal transmitting equipment transmission.Wherein, the first communication Interface 501 can launch the equipment main transmission signal of reception by being directly connected to signal, or switch equipment reception master by main signal Transmission signal.
Second communication interface 502 is used to receive the standby transmission signal of the signal transmitting equipment transmission.Wherein, second Communication interface 502 can launch the standby transmission signal that equipment is transmitted by being directly connected to signal, or by standby signal switching apparatus Receive standby transmission signal.
Signal receiver 500 can simultaneously receive main transmission letter by the first communication interface 501 and the second communication interface 502 Number and standby transmission signal, also can first receive main transmission signal, the selection instruction according to signal selection module receives standby transmission signal. First communication interface 501 can support that bi-directional signal communication or one way signal communicate with the second communication interface 502.
The main signal receiver module 503 is used to for the main transmission signal to be converted to main video signal；The standby signal Receiver module 504 is used to for the standby transmission signal to be converted to standby vision signal；The signal selection module 505 is used to select institute State main video signal or the standby vision signal, and by the vision signal of selection by the third communication interface 506 transmit to Front end display device.
Optionally, main signal receiver module 503 may include the first signal conversion unit and/or the first signal decoding unit. Main signal receiver module 503 can switch equipment institute according to the signal transmitting equipment signal type arranged or the main signal being connected The signal transmission type of support, is converted to main view frequency and believes by the first signal conversion unit by fiber-optic signal or HDBaseT signals Number, or network signal is converted to by main video signal by the first Signal coding unit.Such as when main signal switching equipment is splicing When processor, matrix or KVM matrixes, main signal receiver module 503 can by the first signal conversion unit by fiber-optic signal or HDBaseT signals are converted to main video signal, when main signal switching equipment is the network switch, main signal receiver module 503 Network signal is converted into main video signal.Wherein, the first signal conversion unit can be FPGA (Field Programmable Gate Array, field programmable gate array) chromacoder.It should be noted that main signal receiver module 503 can be simultaneously Including the first signal conversion unit and the first signal decoding unit, the first signal conversion unit or the first signal solution are may also comprise Code unit.
Optionally, standby signal receiving module 504 may include secondary signal converting unit and/or secondary signal decoding unit. Standby signal receiving module 504 can be according to the signal type with signal transmitting equipment agreement or the standby signal switching apparatus institute being connected The signal transmission type of support, is converted to standby video and believes by secondary signal converting unit by fiber-optic signal or HDBaseT signals Number, or network signal is converted to by standby vision signal by secondary signal coding unit.Such as when standby signal switching apparatus are splicing When processor, matrix or KVM matrixes, standby signal receiving module 504 can by secondary signal converting unit by fiber-optic signal or HDBaseT signals are converted to standby vision signal, when standby signal switching apparatus are the network switch, standby signal receiving module 504 Network signal is converted into standby vision signal.Wherein, secondary signal converting unit can be FPGA (Field Programmable Gate Array, field programmable gate array) chromacoder.It should be noted that standby signal receiving module 504 can be simultaneously Including secondary signal converting unit and secondary signal decoding unit, secondary signal converting unit or secondary signal solution are may also comprise Code unit.
It should be noted that main signal receiver module 503 can be respectively independent hardware mould with signal selection module 505 Block, also can be combined to a hardware module.When main signal receiver module 503 and signal selection module 505 be respectively it is independent hard During part module, whether effectively signal selection module can first determine that the main video signal of the transmission of main signal receiver module 503, if having Effect, then select main video signal as the vision signal for being transferred to front end display device, if invalid, the standby vision signal of selection is made To be transferred to the vision signal of front end display device.Or, when signal selection module 505 is combined with main signal receiver module 503 During for a hardware module or when main signal receiver module 503 and signal selection module 505 are respectively independent hardware module, The main transmission signal that main signal receiver module 503 will can be received is sent to signal selection module 505, signal selection module 505 Whether effectively the main transmission signal is determined, if effectively, signal selection module 505 notifies that main signal receiver module 503 leads this Transmission signal is converted to main video signal, and transmits to third communication interface 506, if invalid, signal selection module 505 is notified Standby signal receiving module 504 will be converted to standby vision signal for transmission signal, and transmit to third communication interface 506.
Signal selection module 505 after the standby transmission signal of selection, can the main transmission signal of real-time monitoring or main video signal be It is no that effectively if monitoring, main transmission signal or main video signal recover effective status, reselect main video signal and by its Transmit to third communication interface 506, so that front end display device is shown.
Optionally, signal receiver 500 may also include signal post-processing module 507.
The input of the signal post-processing module 507 connects the output end of the signal selection module 505, the signal The output end of post-processing module 507 connects the third communication interface 506；
The signal post-processing module 507 is used to for the vision signal of the selection to carry out post-processing operation, the rear place Reason operation includes at least one in signal format control, image scaling, the adjustment of image frame per second.
In the embodiment of the present invention, signal receiver is by configuring main signal receiver module and standby signal receiving module, energy The two paths of signals of signal transmitting equipment transmission is enough received, whether the main transmission signal received by determination is failed, and signal is received The standby transmission signal for receiving can be sent to front end display device and be shown by equipment.Ensure that front end display device is continuously display Normal vision signal, improves Consumer's Experience.
The inventive method embodiment is described below.Embodiment of the method in the embodiment of the present invention can be applied to State device embodiment.
Fig. 6 is referred to, Fig. 6 is a kind of schematic flow sheet of video-signal transmission method disclosed in the embodiment of the present invention.Should Method is applied to signal transmitting equipment.As shown in fig. 6, the method is comprised the following steps.
Step S601, it is main transmission signal and standby transmission signal that signal launch equipment to change vision signal.
In one embodiment, it is main transmission signal and standby transmission signal that signal transmitting equipment can change vision signal. Wherein, main transmission signal can be with identical or different with standby transmission of signal-type.Main transmission signal can for fiber-optic signal, Any one in HDBaseT signals or network signal, standby transmission signal can be network signal, HDBaseT signals or optical fiber Any one of signal.The step can be by the main signal transport module in said apparatus embodiment and standby signal transmission module reality It is existing.
Optionally, signal transmitting equipment, can be right before vision signal is changed into main transmission signal and standby transmission signal The video source signal of the video source transmission for receiving carries out pretreatment operation, to obtain the vision signal.Wherein, pretreatment behaviour Make at least one in signal format conversion (being such as converted into rgb signal), overlaying character, signal scaling.The step can be by above-mentioned Signal pre-processing module in device embodiment is realized.
Optionally, the video source signal gathered from video source can also be transmitted to ring and go out display device by signal transmitting equipment, So that backstage is easy to check certain video source signal all the way in signal transmitting terminal.
Step S602, the signal transmitting equipment sends to signal receiver the main transmission signal.
Step S603, the signal transmitting equipment sends to the signal receiver the standby transmission signal.
In one embodiment, main transmission signal and standby transmission signal can be sent to signal and connect by signal transmitting equipment simultaneously Receiving unit；Or, signal transmitting equipment sends main transmission signal first, and works as the standby chain for receiving signal receiver transmission After the enabling signal of road, standby transmission signal is retransmited.Signal transmitting equipment can be according to place system architecture, by main transmission signal and standby Transmission signal is sent directly to signal receiver, or the main signal being respectively sent in system switches equipment and standby signal is cut Exchange device.Step S602 and step S603 can be realized by the communication interface in said apparatus embodiment.
In the embodiment of the present invention, signal launches equipment and sends main transmission signal and standby transmission letter by signal receiver Number, during so as to occurring abnormal in the transmission link for transmitting main transmission signal, i.e., the main transmission signal that signal receiver is received During failure, the standby transmission signal for receiving can be sent to front end display device and be shown by signal transmitting equipment.Ensure that front end The continuously display normal vision signal of display device, improves Consumer's Experience.
Fig. 7 is referred to, Fig. 7 is the schematic flow sheet of another video-signal transmission method disclosed in the embodiment of the present invention. The method is applied to signal receiver.As shown in fig. 7, the method is comprised the following steps.
Step S701, signal receiver detects whether main transmission signal is effective.
In one embodiment, signal receiver detects whether that receive main transmission signal examines including signal receiver Whether survey receives main transmission signal in preset duration, if not receiving main transmission signal in preset duration, shows master Transmission signal is lost, and main transmission signal communication link occurs abnormal；Or, whether effectively to detect the main transmission signal, specific bag Include detect the main transmission signal signal format whether be main transmission signal form, further, the signal format can for transmission Data packet format, wherein, data packet format include send the packet signal launch equipment interface message, by inspection The interface message surveyed in the data packet format whether be launch main transmission signal signal launch equipment interface message, judge to connect Whether the data packet format for receiving is main transmission signal form.If so, then show the main transmission signal effectively, if it is not, then showing The main transmission signal is invalid, and main transmission signal communication link breaks down；Or, detecting the signal condition of the main transmission signal is No stabilization, the packet header sequence number that such as detects the adjacent data bag of the main transmission signal for receiving is discontinuous, CRC check position data are wrong By mistake etc., if so, then show the main transmission signal effectively, if it is not, then show that the main transmission signal is invalid, main transmission signal communication chain Break down on road.The step can be by the treatment in the signal selection module in said apparatus embodiment or main signal receiver module Unit or control unit are realized.
Step S702, if it is, the main transmission signal is converted to main video signal by the signal receiver, and will The main video signal is transmitted to front end display device.
Step S703, if it has not, the standby transmission signal that the signal receiver will be received is converted to standby vision signal, And by described for video signal transmission to the front end display device.
In one embodiment, if signal receiver detects main transmission signal effectively, can be by the main transmission signal Main video signal is converted to, and is transmitted to front end display device；If it is invalid that signal receiver detects standby transmission signal, can Standby vision signal will be converted to for transmission signal, and transmitted to front end display device.Above-mentioned steps can be by said apparatus embodiment In main signal receiver module, standby signal receiving module and communication interface realize.
Optionally, signal receiver can simultaneously receive main transmission signal and standby transmission signal, can also be received in signal and set It is standby to detect main transmission signal failure, after sending reserve link enabling signal to signal transmitting equipment, receive standby transmission signal.Its In, signal receiver directly can send reserve link enabling signal to signal transmitting equipment, or by the standby letter in system Number switching equipment sends reserve link enabling signal, and standby signal switching apparatus can be according to the interface in reserve link enabling signal Address information is the communication port that the reserve link enabling signal is transmitted in signal receiver configuration, and the interface IP address signal includes Second communication interface address of signal receiver and signal launch the third communication interface IP address of equipment, and then receive signal The standby transmission signal that transmitting equipment sends.
Optionally, signal receiver can also carry out post processing behaviour to the main video signal after conversion or standby vision signal Make, the post-processing operation includes signal format control (form supported with front end display device matches), image scaling, figure At least one in image-to-frame ratio adjustment.The step can be realized by the signal post-processing module in said apparatus embodiment.
In the embodiment of the present invention, signal receiver launches the two paths of signals that equipment is transmitted by receiving signal, and detects Whether the main transmission signal for receiving is failed, and signal receiver can be sent to front end display device the standby transmission signal for receiving Shown.The continuously display normal vision signal of front end display device is ensure that, Consumer's Experience is improved.
Apparatus of the present invention embodiment is described below.Functional unit in the embodiment of the present invention can be based on above-mentioned dress Put embodiment realization.
Fig. 8 is referred to, Fig. 8 is the unit composition figure that a kind of signal disclosed in the embodiment of the present invention launches equipment.The signal Transmitting equipment 800 includes converting unit 801, the first transmitting element 802, the second transmitting element 803.
Wherein, converting unit 801, are main transmission signal and standby transmission signal for vision signal to be changed；
First transmitting element 802, for the main transmission signal to be sent to signal receiver；
Second transmitting element 803, for the standby transmission signal to be sent to the signal receiver.
Optionally, first transmitting element 802 is additionally operable to for the main transmission signal to switch equipment hair by main signal Deliver to the signal receiver；
Second transmitting element 803 is additionally operable to pass through the standby transmission signal to be sent to described for signal switching apparatus Signal receiver.
Optionally, second transmitting element 803 is used to send out the main transmission signal in first transmitting element 802 While delivering to the signal receiver, the standby transmission signal is sent to the signal receiver；Or, for After receiving the reserve link enabling signal that the signal receiver sends, the standby transmission signal is sent to the signal Receiving device.
Optionally, signal transmitting equipment 800 may also include pretreatment unit 804, and the pretreatment unit 804 is used to dock The video source signal for receiving carries out pretreatment operation to obtain the vision signal, and the pretreatment operation turns including signal format Change, overlaying character, signal scaling at least one.
Optionally, signal transmitting equipment 800 may also include the 3rd transmitting element 805, and the 3rd transmitting element 805 is used for The video source signal gathered from video source is transmitted to ring and goes out display device.
Fig. 9 is referred to, Fig. 9 is a kind of unit composition figure of signal receiver disclosed in the embodiment of the present invention.The signal Receiving device 900 may include detection unit 901, the first transmission unit 902 and the second transmission unit 903.
Wherein, detection unit 901, for detecting whether main transmission signal is effective；
First transmission unit 902, if being yes for the result of detection unit detection, the main transmission signal is changed It is main video signal, and the main video signal is transmitted to front end display device；
Second transmission unit 903, if being standby transmission signal that is no, will receiving for the result of detection unit detection Standby vision signal is converted to, and by described for video signal transmission to the front end display device.
Optionally, the detection unit 901 is used for：
Whether detection receives main transmission signal in preset duration；Or,
Whether the signal format that detection is received is main transmission signal form；Or,
Whether the signal condition of the main transmission signal that detection is received is stablized.
Optionally, signal receiver 900 also includes the 3rd transmission unit 904, for receiving apparatus for transmitting signal hair While the main transmission signal sent, the described standby transmission signal that the apparatus for transmitting signal sends is received.
Optionally, the second transmission unit 903 is additionally operable to：
If the result of the detection of the detection unit 901 is no, to signal transmitting equipment transmission reserve link enabling signal；
Receive the standby transmission signal that the signal transmitting equipment sends.
Optionally, signal receiver 900 may also include post-processing unit 905, for by the main video signal or The standby vision signal carries out post-processing operation, and the post-processing operation includes signal format control, image scaling, image frame per second At least one in adjustment.
Above-mentioned functions unit is used to realize the corresponding steps in above method embodiment, will not be repeated here.
It should be noted that for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as a series of Combination of actions, but those skilled in the art should know, the present invention not by described by sequence of movement limited because According to the present invention, some steps can sequentially or simultaneously be carried out using other.Secondly, those skilled in the art should also know Know, embodiment described in this description belongs to preferred embodiment, involved action and module is not necessarily of the invention It is necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion described in detail in certain embodiment Point, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed device, can be by another way Realize.For example, device embodiment described above is only schematical, such as the division of described unit is only one kind Division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or can To be integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or discussed each other Coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication connection of device or unit by some interfaces, Can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme 's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use When, can store in a computer-readable access to memory.Based on such understanding, technical scheme substantially or Person say the part or technical scheme contributed to prior art all or part can in the form of software product body Reveal and, the computer software product is stored in a memory, including some instructions are used to so that a computer equipment (can be personal computer, server or network equipment etc.) performs all or part of each embodiment methods described of the invention Step.And foregoing memory includes：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable memory, memory Can include：Flash disk, read-only storage (English：Read-Only Memory, referred to as：ROM), random access device (English： Random Access Memory, referred to as：RAM), disk or CD etc..
The embodiment of the present invention is described in detail above, specific case used herein to principle of the invention and Implementation method is set forth, and the explanation of above example is only intended to help and understands the method for the present invention and its core concept； Simultaneously for those of ordinary skill in the art, according to thought of the invention, can in specific embodiments and applications There is change part, in sum, this specification content should not be construed as limiting the invention.

Claims (31)

1. a kind of signal launches equipment, it is characterised in that including：
First communication interface, main signal transmitter module, standby signal emission module, the second communication interface and third communication interface；
First communication interface connects the input and the standby signal emission module of the main signal transmitter module respectively Input, the output end of the main signal transmitter module connects second communication interface, described for the defeated of signal emission module Go out the end connection third communication interface；
First communication interface is used to receive the vision signal of video source transmission；
It is main transmission signal that the main signal transmitter module is used to change the vision signal, and is connect by the described second communication Mouth is sent to signal receiver；
The standby signal emission module is used to for the vision signal to be converted to standby transmission signal, and is connect by the third communication Mouth is sent to the signal receiver.
2. equipment as claimed in claim 1, it is characterised in that the main signal transmitter module includes the first signal conversion unit And/or the first Signal coding unit；
Wherein, first signal conversion unit is used to for the vision signal to be converted to fiber-optic signal or HDBaseT signals；
The first Signal coding unit is used to for the vision signal to be encoded to network signal.
3. equipment as claimed in claim 1, it is characterised in that the standby signal emission module includes secondary signal converting unit And/or secondary signal coding unit；
Wherein, the secondary signal converting unit is used to for the vision signal to be converted to fiber-optic signal or HDBaseT signals；
The secondary signal coding unit is used to for the vision signal to be encoded to network signal.
4. the equipment as described in claim any one of 1-3, it is characterised in that also including signal pre-processing module, wherein：
The input of the signal pre-processing module connects first communication interface, the output end of the signal pre-processing module The input of the main signal transmitter module and the input of the standby signal emission module are connected respectively；
The signal pre-processing module is used to carry out pretreatment operation, the pretreatment to the vision signal of video source transmission Operation includes at least one in signal format conversion, overlaying character, signal scaling.
5. equipment as claimed in claim 4, it is characterised in that also including fourth communication interface, wherein：
The fourth communication interface connects the input of the signal pre-processing module；
The fourth communication interface goes out display device for connection ring.
6. a kind of signal receiver, it is characterised in that including：
First communication interface, the second communication interface, main signal receiver module, standby signal receiving module, signal selection module and Third communication interface；
First communication interface connects the input of the main signal receiver module, and the second communication interface connection is described standby The input of signal receiving module, the output end of the main signal receiver module is divided with the output end of the standby signal receiving module The input of the signal selection module is not connected, and the output end of the signal selection module connects the third communication interface；
First communication interface is used to receive the main transmission signal of signal transmitting equipment transmission；
Second communication interface is used to receive the standby transmission signal of the signal transmitting equipment transmission；
The main signal receiver module is used to for the main transmission signal to be converted to main video signal；
The standby signal receiving module is used to for the standby transmission signal to be converted to standby vision signal；
The signal selection module is used to select the main video signal or the standby vision signal, and the vision signal that will be selected Transmitted to front end display device by the third communication interface.
7. equipment as claimed in claim 6, it is characterised in that the main signal receiver module includes the first signal conversion unit And/or first signal decoding unit；
Wherein, if the main transmission signal is fiber-optic signal or HDBaseT signals, first signal conversion unit is used for institute State fiber-optic signal or the HDBaseT signals are converted to the main video signal；
If the main transmission signal is network signal, first signal decoding unit is used to for the network signal to be decoded as institute State main video signal.
8. equipment as claimed in claim 6, it is characterised in that the standby signal emission module includes secondary signal converting unit And/or secondary signal decoding unit；
Wherein, if the standby transmission signal is fiber-optic signal or HDBaseT signals, the secondary signal converting unit is used for institute State fiber-optic signal or the HDBaseT signals are converted to the standby vision signal；
If the main transmission signal is network signal, the secondary signal decoding unit is used to for the network signal to be decoded as institute State standby vision signal.
9. the equipment as described in claim any one of 6-8, it is characterised in that also including signal post-processing module, wherein：
The input of the signal post-processing module connects the output end of the signal selection module, the signal post-processing module Output end connect the third communication interface；
The signal post-processing module is used to for the vision signal of the selection to carry out post-processing operation, the post-processing operation bag Include at least one in signal format control, image scaling, the adjustment of image frame per second.
10. a kind of video signal transmission system, it is characterised in that including：
Video source, signal transmitting equipment, signal receiver and front end display device；
The output end of the video source connects the input that the signal launches equipment；
The output end of the signal transmitting equipment connects the input of the signal receiver；
The output end of the signal receiver connects the front end display device；
The signal transmitting equipment includes signal transmitting equipment any one of claim 1-5；
The signal receiver includes signal receiver any one of claim 6-9.
A kind of 11. video signal transmission systems, it is characterised in that including：
Video source, signal transmitting equipment, main signal switching equipment, standby signal switching apparatus, signal receiver and front end show Show equipment；
The output end of the video source connects the input that the signal launches equipment；
First output end of the signal transmitting equipment connects the input that the main signal switches equipment；
The input of the second output end connection standby signal switching apparatus of the signal transmitting equipment；
The output end of the main signal switching equipment is connected the signal and connects respectively with the output end of the standby signal switching apparatus The input of receiving unit；
The output end of the signal receiver connects the front end display device；
The signal transmitting equipment includes signal transmitting equipment any one of claim 1-5；
The signal receiver includes signal receiver any one of claim 6-9.
A kind of 12. video-signal transmission methods, it is characterised in that including：
It is main transmission signal and standby transmission signal that signal launch equipment to change vision signal；
The signal transmitting equipment sends to signal receiver the main transmission signal；
The signal transmitting equipment sends to the signal receiver the standby transmission signal.
13. methods as claimed in claim 12, it is characterised in that signal transmitting equipment by the main transmission signal send to Signal receiver includes：
The main transmission signal is switched equipment and sent to the signal receiver by the signal transmitting equipment by main signal；
The signal transmitting equipment sends to the signal receiver the standby transmission signal to be included：
The signal transmitting equipment sends to the signal receiver the standby transmission signal by standby signal switching apparatus.
14. methods as claimed in claim 12, it is characterised in that signal transmitting equipment by the standby transmission signal send to The signal receiver includes：
The signal transmitting equipment sends while to the signal receiver the main transmission signal, by the standby transmission Signal is sent to the signal receiver；Or,
The signal transmitting equipment, will be described standby after the reserve link enabling signal that the signal receiver sends is received Transmission signal is sent to the signal receiver.
15. such as claim 12-14 any one methods describeds, it is characterised in that the signal transmitting equipment turns vision signal Before being changed to main transmission signal and standby transmission signal, methods described also includes：
The video source signal that the signal transmitting equipment interconnection is received carries out pretreatment operation to obtain the vision signal, described Pretreatment operation includes at least one in signal format conversion, overlaying character, signal scaling.
16. methods as claimed in claim 15, it is characterised in that methods described also includes：
The video source signal for receiving is transmitted to ring and goes out display device by the signal transmitting equipment.
A kind of 17. video-signal transmission methods, it is characterised in that including：
Signal receiver detects whether main transmission signal is effective；
If it is, the main transmission signal is converted to main video signal by the signal receiver, and main view frequency is believed Number transmit to front end display device；
If it has not, the standby transmission signal that the signal receiver will be received is converted to standby vision signal, and standby regarded described Frequency signal transmission is to the front end display device.
18. methods as claimed in claim 17, it is characterised in that the signal receiver detects whether main transmission signal is effective Including：
Whether the signal receiver detection receives main transmission signal in preset duration；Or,
Whether the signal format that the signal receiver detection is received is main transmission signal form；Or,
Whether the signal condition of the main transmission signal that the signal receiver detection is received is stablized.
19. methods as claimed in claim 17, it is characterised in that methods described also includes：
The signal receiver receives the signal while the main transmission signal that apparatus for transmitting signal sends is received The described standby transmission signal that transmission equipment sends.
20. methods as claimed in claim 17, it is characterised in that if it has not, the standby biography that the signal receiver will be received Before defeated signal transmission to front end display device, methods described also includes：
The signal receiver is to signal transmitting equipment transmission reserve link enabling signal；
The signal receiver receives the standby transmission signal that the signal transmitting equipment sends.
21. such as claim 17-20 any one methods describeds, it is characterised in that methods described also includes：
The main video signal or the standby vision signal are carried out post-processing operation, the rear place by the signal receiver Reason operation includes at least one in signal format control, image scaling, the adjustment of image frame per second.
A kind of 22. signal transmitting equipment, it is characterised in that including：
Converting unit, is main transmission signal and standby transmission signal for vision signal to be changed；
First transmitting element, for the main transmission signal to be sent to signal receiver；
Second transmitting element, for the standby transmission signal to be sent to the signal receiver.
23. equipment as claimed in claim 22, it is characterised in that
First transmitting element is additionally operable to by main signal switching equipment be sent the main transmission signal to the signal and connect Receiving unit；
Second transmitting element is additionally operable to by standby signal switching apparatus be sent the standby transmission signal to the signal and connect Receiving unit.
24. equipment as claimed in claim 22, it is characterised in that second transmitting element is used in first transmitting element The main transmission signal is sent while to the signal receiver, the standby transmission signal is sent to the signal and is connect Receiving unit；Or, for after the reserve link enabling signal that the signal receiver sends is received, by the standby transmission Signal is sent to the signal receiver.
25. as described in claim any one of 22-24 equipment, it is characterised in that also include：
Pretreatment unit, it is described for carrying out pretreatment operation to the video source signal for receiving to obtain the vision signal Pretreatment operation includes at least one in signal format conversion, overlaying character, signal scaling.
26. equipment as claimed in claim 25, it is characterised in that also include：
3rd transmitting element, display device is gone out for the video source signal to be transmitted to ring.
A kind of 27. signal receivers, it is characterised in that including：
Detection unit, for detecting whether main transmission signal is effective；
First transmission unit, if being yes for the result of detection unit detection, main view is converted to by the main transmission signal Frequency signal, and the main video signal is transmitted to front end display device；
Second transmission unit, if being no for the result of detection unit detection, the standby transmission signal that will be received is converted to Standby vision signal, and by described for video signal transmission to the front end display device.
28. equipment as claimed in claim 27, it is characterised in that the detection unit is used for：
Whether detection receives main transmission signal in preset duration；Or,
Whether the signal format that detection is received is main transmission signal form；Or,
Whether the signal condition of the main transmission signal that detection is received is stablized.
29. equipment as claimed in claim 27, it is characterised in that also include：
3rd transmission unit, for while the main transmission signal that apparatus for transmitting signal sends is received, receiving the letter Number send the described standby transmission signal that equipment sends.
30. equipment as claimed in claim 27, it is characterised in that the second transmission unit is additionally operable to：
If the result of the detection unit detection is no, to signal transmitting equipment transmission reserve link enabling signal；
Receive the standby transmission signal that the signal transmitting equipment sends.
31. as described in claim any one of 27-30 equipment, it is characterised in that also include：
Post-processing unit, for the main video signal or the standby vision signal to be carried out into post-processing operation, the rear place Reason operation includes at least one in signal format control, image scaling, the adjustment of image frame per second.
CN201611025994.8A 2016-11-17 2016-11-17 Signal transmitting equipment, signal receiver, video-signal transmission method and system Pending CN106788688A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN107291278A (en) * 2017-06-07 2017-10-24 国网江苏省电力公司常熟市供电公司 Dispatching and monitoring platform KVM system
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CN112436885A (en) * 2021-01-27 2021-03-02 北京小鸟科技股份有限公司 Optical fiber link mutual backup method and system based on KVM (keyboard video mouse) seat
CN112436885B (en) * 2021-01-27 2021-05-11 北京小鸟科技股份有限公司 Optical fiber link mutual backup method and system based on KVM (keyboard video mouse) seat
CN113238600A (en) * 2021-04-02 2021-08-10 张弦 Monitoring device of communication method

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