CN107705741A - Data input o controller and data input and output control method - Google Patents
Data input o controller and data input and output control method Download PDFInfo
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- CN107705741A CN107705741A CN201710801354.XA CN201710801354A CN107705741A CN 107705741 A CN107705741 A CN 107705741A CN 201710801354 A CN201710801354 A CN 201710801354A CN 107705741 A CN107705741 A CN 107705741A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The embodiment of the invention discloses a kind of data input o controller, including：Master control input interface, backup input interface, multiple output interfaces, detection unit, control circuit and main process task circuit；Detection unit is used for the aerial lug state for detecting master control input interface, control circuit be used for when detection unit detects the aerial lug abnormal state of master control input interface produce input control signal control main process task circuit from master control input interface switch to backup input interface obtain input source, and control circuit be used for produce output control signal control main process task circuit pass through the multiple output interface progress redundancy output.Via the dual Hot Spare configuration of input and output, system hardware framework can be simplified with lifting system stability.In addition, the embodiment of the invention also discloses the data input output control method for being suitable for application in the data input o controller.
Description
Technical field
The present invention relates to data processing and input and output control technology field, more particularly to a kind of data input output control
Device and a kind of data input output control method.
Background technology
In LED display control system, shield display picture on a controller, only only input all the way and defeated all the way
It is far from being enough to go out, and inputs and exports the drawbacks of single and have two, one is：When input failure, screen body picture is caused to show
Show exception；The second is：When exporting failure, cause to shield body picture display exception；So as to cause system input-output stability
Property is poor.
The content of the invention
Embodiments of the invention provide a kind of data input o controller and a kind of data input output control method, solution
Certainly the problem of system input output stability difference, to realize the technique effect of lifting system stability.
On the one hand, there is provided a kind of data input o controller, including：Master control input interface is backup input interface, more
Individual output interface, detection unit, control circuit and main process task circuit；The detection unit is used to detect the master control input interface
Aerial lug state, the control circuit is used for when the detection unit detects the aerial lug of the master control input interface
Input control signal is produced during abnormal state controls the main process task circuit to switch to the backup from the master control input interface
Input interface obtains input source, and the control circuit controls the main process task circuit to pass through for producing output control signal
The multiple output interface carries out redundancy output.
In one embodiment of the invention, the control circuit is used to detect that the master control is defeated in the detection unit
Input switchback signal is produced when the aerial lug state of incoming interface recovers normal controls the main process task circuit to switch to from described
Master control input interface obtains input source.
In one embodiment of the invention, the backup input interface includes multiple defeated with different backup priority
Incoming interface.
In one embodiment of the invention, the detection unit includes：Video decoding circuit；The video decoding circuit
It is connected between the master control input interface and the backup input interface and the main process task circuit；The control circuit connection
The main process task circuit or the control circuit connect the main process task circuit and the video decoding circuit, with know by
The aerial lug state for the master control input interface that the video decoding circuit detects simultaneously connects knowing that the master control inputs
The input control signal is produced during the aerial lug abnormal state of mouth controls the main process task circuit to switch to from the backup
Input interface obtains input source.
In one embodiment of the invention, the data input o controller also includes：Video coding circuit, connection
Between the main process task circuit and the multiple output interface.
In one embodiment of the invention, the data input o controller also includes：Multichannel physical layer transceiver
Chip, connect the main process task circuit and connect the multiple output interface respectively.
Another further aspect, there is provided a kind of data input o controller, including：First input interface, the second input interface,
First output interface, the second output interface, PLD and control circuit；First input interface and second input
Interface is connected to the input side of the PLD, first output interface and second output interface point
Be not connected to the outlet side of the PLD, the control circuit connects the PLD, for
When detecting the aerial lug abnormal state of first input interface, produce input control signal and control the FPGA
Device switches to from second input interface and obtains input source, and for detecting the outside of first output interface
During connection state exception, produce output control signal and control the PLD by second output interface from backup
Output interface switches to master control output interface.
In one embodiment of the invention, first input interface and second input interface are respectively that video connects
Mouthful；First output interface and second output interface are respectively video interface or network interface.
On the other hand, there is provided a kind of data input output control method, including：From one in multiple input interfaces
One input interface receives input source；After handling data corresponding to the input source of reception, pass through multiple output interfaces
Carry out redundancy output；And when detecting the aerial lug abnormal state of first input interface, switch to from described more
Second input interface in individual input interface receives the backup source of the input source；Wherein described backup source and the input
Source has same data content.
In one embodiment of the invention, the data input output control method also includes：Detecting described
During the aerial lug abnormal state of two input interfaces, switch to and connect from the 3rd input interface in the multiple input interface
Receive the second backup source of the input source；Wherein described second backup source and the input source have an identical content, and the described 3rd
The backup priority of input interface is less than the backup priority of second input interface.
In one embodiment of the invention, the data input output control method also includes：Detecting described
When the aerial lug state of one input interface recovers normal, switch to from first input interface and receive the input source.
Another aspect, there is provided a kind of data input output control method, including：From one in multiple input interfaces
One input interface receives input source；Pass through the master control in multiple output interfaces after handling data corresponding to the input source
Output interface exports；And when detecting the aerial lug abnormal state of first input interface, switch to from described more
Second input interface in individual input interface receives the backup source of the input source；Wherein described backup source and the input
Source has identical content.
In one embodiment of the invention, the data input output control method also includes：Detecting the master
When controlling the aerial lug abnormal state of output interface, one of other output interfaces in the multiple output interface are switched into master
Control output interface and carry out data output.
A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：Connect by configuring master control input
Mouth and backup input interface simultaneously configure multiple output interfaces progress redundancy outputs, so as to realize the dual Hot Spare of input and output, its
On the one hand the demand to data IOC quantity is reduced, simplifies system line and hardware structure, strengthens shared money
The reusability in source, and then reduce the hardware cost of user；On the other hand the reliability of system has been ensured.
Another technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：Decoded by configuring video
Circuit, main process task circuit, control circuit and multichannel physical layer transceiver (PHY) chip, it is possible to achieve to vedio data
Processing and input and output, and then the hair that can be applied in such as LED display control system field of display screen control system field
The two-in-one product of card feed product or video processor and sending card.
Another technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：Decoded by configuring video
Circuit, main process task circuit, control circuit and video coding circuit, it is possible to achieve the processing and input to vedio data are defeated
Go out, and then the video processor product that can be applied in such as LED display control system field of display screen control system field.
Another technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：Because input interface is realized
Multi-level backup, it make it that system input is more stable.
Another technical scheme again in above-mentioned technical proposal has the following advantages that or beneficial effect：It is defeated by configuring master control
Incoming interface and backup input interface simultaneously configure master control, the progress changeable output of master control/backup of backup output interface, defeated so as to realize
Enter and export dual Hot Spare, it can simplify system, lifting system reliability.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing.
Fig. 1 is the structural representation of the data input o controller in first embodiment of the invention；
Fig. 2 is the structural representation of the data input o controller in second embodiment of the invention；
Fig. 3 is the structural representation of the data input o controller in third embodiment of the invention；
Fig. 4 is the structural representation of the data input o controller in fourth embodiment of the invention；
Fig. 5 is the structural representation of the data input o controller in fifth embodiment of the invention；
Fig. 6 is the structural representation of the data input o controller in sixth embodiment of the invention；
Fig. 7 is the structural representation of the data input o controller in seventh embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
First embodiment
As shown in figure 1, a kind of data input o controller 10 provided in first embodiment of the invention, including：Master control
Input interface 11a, backup input interface 11b, multiple output interfaces such as the first output interface 13a and the second output interface 13b,
Detection unit 15, main process task circuit 16 and control circuit 17.Wherein, detection unit 15 is used to detect master control input interface 11a's
Aerial lug state, control circuit 17 are used for when detection unit 15 detects that master control input interface 11a aerial lug state is different
Generation input control signal control main process task circuit 16 switches to backup input interface 11b from master control input interface 11a and obtained when often
Input source, and control circuit 17 is taken to can be also used for producing output control signal control main process task circuit 16 by the multiple
Output interface such as 13a, 13b carry out redundancy output.
The present embodiment carries out redundancy by configuring master control input interface and backup input interface and configuring multiple output interfaces
Output, so as to realize the dual Hot Spare of input and output, its one side reduces the demand to data IOC quantity,
Simplify system line and hardware structure, strengthen the reusability of shared resource, and then reduce the hardware cost of user；On the other hand protect
The reliability of system is hindered.In addition, it is noted that the aerial lug abnormal state referred in the present embodiment typically refers to
There is connection not connected or outside but in the state that goes offline outside input interface, so as to detect effective external connection.
Second embodiment
As shown in Fig. 2 a kind of data input o controller 20 provided in second embodiment of the invention, including：Master control
Input interface 21a, backup input interface 21b, the first output interface 23a, the second output interface 23b, video decoding circuit 25, master
Process circuit 26, control circuit 27 and two-way PHY chip 28.
Wherein, video decoding circuit 25 is connected to master control input interface 21a and backup input interface 21b and main process task circuit
Between 26, master control input interface 21a, backup input interface 21b and video decoding circuit 25 are respectively positioned on the defeated of main process task circuit 26
Enter side.Control circuit 27 connects main process task circuit 26.First output interface 23a, the second output interface 23b and two-way PHY chip
28 are respectively positioned on the outlet side of main process task circuit 26, and two-way PHY chip 28 connects main process task circuit 26 and the respectively output of connection first
Interface 23a and the second output interface 23b.
Hold it is above-mentioned, master control input interface 21a be used for receive the first input source, backup input interface 21b be used for reception second
Input source, namely the backup source of the first input source, it has same data content with the first input source.Video decoding circuit 25
Such as include two-path video decoding chip, or regarded including video decoding chip all the way and the road video decoding chip for binary channels
Frequency decoding chip；Each road video decoding chip, which has, detects connected master control input interface 21a and backup input interface 21b
Aerial lug state function and testing result is stored in local register, the testing result can report to be connected with it
The main process task circuit 26 connect informs control circuit 27 by main process task circuit 26 again, can also directly report in other embodiments
Connected control circuit 27.Main process task circuit 26 is for example including PLD, as FPGA device etc., control circuit
27 for example including microcontroller, as MCU based on ARM kernels etc.；Master control input interface 21a and backup input interface 21b can be with
Be various video interfaces such as DVI, HDMI, VGA, CVBS, SDI, and master control input interface 21a and backup input interface
21b can be identical video interface or different video interfaces；First output interface 23a and the second output interface
23b can be network interface etc..
Furthermore main process task circuit 26 can select to receive the from master control input interface 21a under the control of control circuit 27
One input source receives the second input source (backup source of the first input source) progress data processing, place from backup input interface 21b
Data (such as vedio data) after reason are defeated via the first output interface 23a and second respectively by two-way PHY chip 28
Outgoing interface 23b is carried out in redundancy output, namely the first output interface 23a and the second output interface 23b synchronism output identical datas
Hold.Control logic as control circuit 27 can be：It is right according to the video decoding circuit 25 that part is formed as detection unit
Master control input interface 21a aerial lug state-detection result judges whether master control input interface 21a aerial lug state is different
Often；If abnormal, produce input control signal control main process task circuit 26 and switch to from backup input interface 21b receptions first
The backup source (namely second input source) of input source, subsequently when the aerial lug state for detecting master control input interface 21a is recovered
Normally, then produce input switchback signal control main process task circuit 26 and switch back into that to receive first from master control input interface 21a defeated again
Enter source；, whereas if it is normal, then control main process task circuit 26 to receive the first input source from master control input interface 21a.
The present embodiment is by configuring master control input interface and backup input interface and configuring first and second output interface
Row redundancy exports, and so as to realize the dual Hot Spare of input and output, it can simplify system, lifting system reliability.Furthermore pass through
Configure video decoding circuit, main process task circuit, control circuit and multichannel PHY chip, it is possible to achieve to the place of vedio data
Reason and input and output, and then the transmission that can be applied in such as LED display control system field of display screen control system field
The two-in-one product of card product or video processor and sending card.
3rd embodiment
As shown in figure 3, a kind of data input o controller 30 provided in third embodiment of the invention, including：Master control
Input interface 31a, backup input interface 31b, the first output interface 33a, the second output interface 33b, video decoding circuit 35, master
Process circuit 36, control circuit 37 and video coding circuit 38.
Wherein, video decoding circuit 35 is connected to master control input interface 31a and backup input interface 31b and main process task circuit
Between 36, master control input interface 31a, backup input interface 31b and video decoding circuit 35 are respectively positioned on the defeated of main process task circuit 36
Enter side.Control circuit 37 connects video decoding circuit 35, main process task circuit 36 and video coding circuit 38.First output interface
33a, the second output interface 33b and video coding circuit 38 are respectively positioned on the outlet side of main process task circuit 36, video coding circuit 38
It is connected between the output interface 33a of main process task circuit 36 and first and the second output interface 33b.
Hold above-mentioned, the input source of master control input interface 31a and backup input interface 31b for receiving same data content.
Video decoding circuit 35 is for example including two-path video decoding chip, or including video decoding chip all the way and the road video solution
Code chip is two-pass video decoding chip；Each road video decoding chip, which has, detects connected master control input interface 31a
With the function of backup input interface 31b aerial lug state and testing result is stored in local register, the detection knot
Fruit can directly report connected control circuit 37.Video coding circuit 38 for example including two-path video coding chip,
Or including video coding chip all the way and the road video coding chip it is two-pass video coding chip；Each road Video coding
Chip has the function for the aerial lug state for detecting connected first output interface 33a and the second output interface 33b simultaneously
Testing result is stored in local register, the testing result can directly report control circuit 37.
Main process task circuit 36 is for example including PLD, and as FPGA device etc., control circuit 37 is for example including micro-
Controller, as MCU etc.；Master control input interface 31a and backup input interface 31b can be various video interfaces such as DVI,
HDMI, VGA, CVBS, SDI etc., and master control input interface 31a and backup input interface 31b can be identical video interfaces,
Can also be different video interfaces；First output interface 33a and the second output interface 33b can be various video interfaces for example
DVI, HDMI, VGA, CVBS, SDI etc., and the first output interface 33a and the second output interface 33b can be identical videos
Interface or different video interfaces.
Furthermore main process task circuit 36 can select what is received from master control input interface 31a under the control of control circuit 37
Input source receives the backup source of input source from backup input interface 31b and carries out data processing, data (such as the video after processing
View data) encoded by video coding circuit 38 after pass through and carried out by the first output interface 23a and the second output interface 23b
Redundancy exports, namely the first output interface 33a and the second output interface 33b synchronism output same data contents, and it is equivalent to the
One output interface 33a and the second output interface 33b are each configured to master control output interface.As for the control logic of control circuit 37
Can be：According to aerial lug shape of the video decoding circuit 35 to master control input interface 31a that part is formed as detection unit
State testing result judges whether master control input interface 31a aerial lug state is abnormal；If abnormal, input control letter is produced
Number control main process task circuit 36 switches to the backup source that input source is received from backup input interface 31b, ought subsequently detect master control
Input interface 31a aerial lug state recovers normal, then produces input switchback signal control main process task circuit 36 and switch again
Return from master control input interface 31a and receive input source；, whereas if it is normal, then main process task circuit 36 is controlled from master control input interface
31a receives input source.
The present embodiment is by configuring master control input interface and backup input interface and configuring first and second output interface
Row redundancy exports, and so as to realize the dual Hot Spare of input and output, it can simplify system, lifting system reliability.Furthermore pass through
Configure video decoding circuit, main process task circuit, control circuit and video coding circuit, it is possible to achieve to the place of vedio data
Reason and input and output, and then the video that can be applied in such as LED display control system field of display screen control system field
Processor products.
Fourth embodiment
As shown in figure 4, a kind of data input o controller 40 provided in fourth embodiment of the invention, including：Master control
Input interface 41a, backup input interface 41b and 41c, the first output interface 43a, the second output interface 43b, video decoding circuit
45th, main process task circuit 46, control circuit 47 and two-way PHY chip 48.
Wherein, video decoding circuit 45 is connected to master control input interface 41a and backup input interface 41b, 41c and main process task
Between circuit 46, master control input interface 41a, backup input interface 41b and 41c and video decoding circuit 45 are respectively positioned on main process task electricity
The input side on road 46, video decoding circuit 45 include the separate video decoding chip in three tunnels.Control circuit 47 connects main place
Manage circuit 46.First output interface 43a, the second output interface 43b and two-way PHY chip 48 are respectively positioned on the defeated of main process task circuit 46
Go out side, two-way PHY chip 48 connects main process task circuit 46 and connects the first output interface 43a and the second output interface 43b respectively.
Hold it is above-mentioned, master control input interface 41a be used for receive input source；Backup input interface 41b is used to receive input source
Backup source, it has same data content with input source；Backup input interface 41c is used for another backup source for receiving input source,
It has same data content with input source；Backup input interface 41c backup priority such as less than backs up input interface 41b
Backup priority.The Zhong Ge roads video decoding chip of video decoding circuit 45, which has, detects connected master control input interface
Testing result is simultaneously stored in local register by the function of 41a or backup input interface 41b/41c aerial lug state, should
Testing result can report connected main process task circuit 46 and inform control circuit 47 by main process task circuit 46 again.Main process task
Circuit 46 is for example including PLD, and as FPGA device etc., control circuit 47 is for example including microcontroller, as MCU etc.；
Master control input interface 41a and backup input interface 41b, 41c can be various video interfaces such as DVI, HDMI, VGA, CVBS,
SDI etc., and master control input interface 41a and backup input interface 41b, 41c can be identical video interfaces or not
Same video interface；First output interface 43a and the second output interface 43b can be network interface etc..
Furthermore main process task circuit 46 can select defeated from master control input interface 41a receptions under the control of control circuit 47
The backup source for entering source or input source being received from backup input interface 41b or 41c carries out data processing, the data (example after processing
Such as vedio data) carried out respectively via the first output interface 43a and the second output interface 43b by two-way PHY chip 48
Redundancy exports, namely the first output interface 43a and the second output interface 43b synchronism output same data contents.As for control electricity
The control logic on road 47 can be：According to the video decoding circuit 45 as detection unit composition part to master control input interface
41a aerial lug state-detection result judges whether master control input interface 41a aerial lug state is abnormal；If normal,
Then main process task circuit 46 is controlled to receive input source from master control input interface 41a；, whereas if it is abnormal, then produce input control letter
Number control main process task circuit 46 switches to the backup source that input source is received from backup input interface 41b, ought subsequently detect master control
Input interface 41a aerial lug state recovers normal, then produces input switchback signal control main process task circuit 46 and switch again
Return from master control input interface 41a and receive input source；Or switching to the backup from backup input interface 41b reception input sources
Backup input interface 41b aerial lug abnormal state is detected behind source, control main process task circuit 46 switches to be inputted from backup
Interface 41c receives another backup source of input source.
The present embodiment is by configuring master control input interface and backup input interface and configuring first and second output interface
Row redundancy exports, and so as to realize the dual Hot Spare of input and output, it can simplify system, lifting system reliability.Furthermore pass through
Configure video decoding circuit, main process task circuit, control circuit and multichannel PHY chip, it is possible to achieve to the place of vedio data
Reason and input and output, and then the transmission that can be applied in such as LED display control system field of display screen control system field
The two-in-one product of card product or video processor and sending card；Further, since input interface realizes multi-level backup, it causes
System input is more stable.
5th embodiment
As shown in figure 5, a kind of data input o controller 50 provided in fifth embodiment of the invention, including：Master control
Input interface 51a, backup input interface 51b and 51c, the first output interface 53a, the second output interface 53b, video decoding circuit
55th, main process task circuit 56, control circuit 57 and video coding circuit 58.
Wherein, video decoding circuit 55 is connected to master control input interface 51a and backup input interface 51b, 51c and main process task
Between circuit 56, master control input interface 51a, backup input interface 51b and 51c and video decoding circuit 55 are respectively positioned on main process task electricity
The input side on road 56, video decoding circuit 55 include the separate video decoding chip in three tunnels.Control circuit 57 connects main place
Manage circuit 56.First output interface 53a, the second output interface 53b and video coding circuit 58 are respectively positioned on main process task circuit 56
Outlet side, video coding circuit 58 be connected to the output interface 53a of main process task circuit 56 and first and the second output interface 53b it
Between, and video coding circuit 58 includes the separate video coding chip of two-way.
Hold it is above-mentioned, master control input interface 51a be used for receive input source；Backup input interface 51b is used to receive input source
Backup source, it has same data content with input source；Backup input interface 51c is used for another backup source for receiving input source,
It has same data content with input source；Backup input interface 51c backup priority such as less than backs up input interface 51b
Backup priority.The Zhong Ge roads video decoding chip of video decoding circuit 55, which has, detects connected master control input interface
Testing result is simultaneously stored in local register by the function of 51a or backup input interface 51b/51c aerial lug state, should
Testing result can report connected main process task circuit 56 and inform control circuit 57 by main process task circuit 56 again.Main process task
Circuit 56 is for example including PLD, and as FPGA device etc., control circuit 57 is for example including microcontroller, as MCU etc.；
Master control input interface 51a and backup input interface 51b, 51c can be various video interfaces such as DVI, HDMI, VGA, CVBS,
SDI etc., and master control input interface 51a and backup input interface 51b, 51c can be identical video interfaces or not
Same video interface；First output interface 53a and the second output interface 53b can be various video interfaces such as DVI, HDMI,
VGA, CVBS, SDI etc., and the first output interface 53a and the second output interface 53b can be identical video interfaces, also may be used
To be different video interfaces.
Furthermore main process task circuit 56 can select defeated from master control input interface 51a receptions under the control of control circuit 57
The backup source for entering source or input source being received from backup input interface 51b or 51c carries out data processing, the data (example after processing
Such as vedio data) by being connect respectively via the first output after the two-path video coding chip coding in video coding circuit 58
Mouth 53a and the second output interface 53b progress redundancy outputs, namely the first output interface 53a and the second output interface 53b are synchronously defeated
Go out same data content.Control logic as control circuit 57 can be：According to the video that part is formed as detection unit
Decoding circuit 55 judges that master control input interface 51a outside connects to master control input interface 51a aerial lug state-detection result
Whether wire state is abnormal；If normal, control main process task circuit 56 receives input source from master control input interface 51a；Conversely, such as
Fruit is abnormal, then produces input control signal control main process task circuit 56 and switch to from backup input interface 51b reception input sources
Backup source, subsequently work as and detect that master control input interface 51a aerial lug state recovers normal, then produce input switchback signal control
Main process task circuit 56 processed switches back into from master control input interface 51a and receives input source again；Or inputted switching to from backup
Backup input interface 51b aerial lug abnormal state is detected after the backup source of interface 51b reception input sources, controls main process task
Circuit 56 switches to another backup source that input source is received from backup input interface 51c.
The present embodiment is by configuring master control input interface and backup input interface and configuring first and second output interface
Row redundancy exports, and so as to realize the dual Hot Spare of input and output, it can simplify system, lifting system reliability.Furthermore pass through
Configure video decoding circuit, main process task circuit, control circuit and video coding circuit, it is possible to achieve to the place of vedio data
Reason and input and output, and then the video that can be applied in such as LED display control system field of display screen control system field
Processor products；Further, since input interface realizes multi-level backup, it make it that system input is more stable.
Sixth embodiment
As shown in fig. 6, a kind of data input o controller 60 provided in sixth embodiment of the invention, including：Master control
Input interface 61a, backup input interface 61b, master control output interface 63a, backup output interface 63b, video decoding circuit 65, master
Process circuit 66, control circuit 67 and two-way PHY chip 68.
Wherein, video decoding circuit 65 is connected to master control input interface 61a and backup input interface 61b and main process task circuit
Between 66, master control input interface 61a, backup input interface 61b and video decoding circuit 65 are respectively positioned on the defeated of main process task circuit 66
Enter side, video decoding circuit 65 includes the separate video decoding chip of two-way.Control circuit 67 connects main process task circuit 66.
Master control output interface 63a, backup output interface 63b and two-way PHY chip 68 are respectively positioned on the outlet side of main process task circuit 66, two-way
PHY chip 68 connects main process task circuit 66 and connects master control output interface 63a and backup output interface 63b respectively.
Hold it is above-mentioned, master control input interface 61a be used for receive input source；Backup input interface 61b is used to receive input source
Backup source, it has same data content with input source.The Zhong Ge roads video decoding chip of video decoding circuit 65 has detection
The function of connected master control input interface 61a or backup input interface 61b aerial lug state simultaneously protects testing result
In the presence of in local register, the testing result can report connected main process task circuit 66 and be accused again by main process task circuit 66
Know control circuit 67.Main process task circuit 66 is for example including PLD, and as FPGA device etc., control circuit 67 is for example wrapped
Microcontroller is included, as MCU etc.；Master control input interface 61a and backup input interface 61b can be various video interfaces such as DVI,
HDMI, VGA, CVBS, SDI etc., and master control input interface 61a and backup input interface 61b can be identical video interfaces,
Can also be different video interfaces；Master control output interface 63a and backup output interface 63b can be network interface etc..
Furthermore main process task circuit 66 can select defeated from master control input interface 61a receptions under the control of control circuit 67
The backup source for entering source or input source being received from backup input interface 61b carries out data processing, data (such as the video after processing
View data) exported by corresponding PHY chip 68 via master control output interface 63a or backup output interface 63b.Extremely
Can be in the control logic of control circuit 67：It is defeated to master control according to the video decoding circuit 65 that part is formed as detection unit
Incoming interface 61a aerial lug state-detection result judges whether master control input interface 61a aerial lug state is abnormal；If
Normally, then main process task circuit 66 is controlled to receive input source from master control input interface 61a；, whereas if it is abnormal, then produce input control
Signal control main process task circuit 66 processed switches to the backup source that input source is received from backup input interface 61b, subsequently works as and detects
Master control input interface 61a aerial lug state recovers normal, then produces input switchback signal control main process task circuit 66 again
Switch back into from master control input interface 61a and receive input source.Furthermore control circuit 67 forms each of part according to as detection unit
Road PHY chip 68 judges that master control output interface 63a outside connects to master control output interface 63a aerial lug state-detection result
Whether wire state is abnormal；If normal, main process task circuit 66 is controlled from data after master control output interface 63a outputs processing；Instead
It, if abnormal, produce output control signal control main process task circuit 66 and backup output interface 63b authority is switched into master
Control output interface is subsequently worked as to export data after processing and detects that master control output interface 63a aerial lug state recovers normal,
Then produce output switchback signal control main process task circuit 66 to cancel the ownership of backup output interface 63, so as to again from master control
Data after output interface 63a outputs processing.
The present embodiment is by configuring master control input interface and backup input interface and configuring master control, the progress of backup output interface
The changeable output of master control/backup, so as to realize the dual Hot Spare of input and output, it can simplify system, lifting system reliability.
Furthermore by configuring video decoding circuit, main process task circuit, control circuit and multichannel PHY chip, it is possible to achieve to video image
The processing and input and output of data, and then can be applied to display screen control system field such as LED display control system field
In sending card product or video processor and the two-in-one product of sending card.Finally it is worth mentioning that the data in Fig. 6 are defeated
Input multi-level backup and/or output multi-level backup can also be realized by entering o controller 60.
7th embodiment
As shown in fig. 7, a kind of data input o controller 70 provided in seventh embodiment of the invention, including：Master control
Input interface 71a, backup input interface 71b, master control output interface 73a, backup output interface 73b, video decoding circuit 75, master
Process circuit 76, control circuit 77 and video coding circuit 78.
Wherein, video decoding circuit 75 is connected to master control input interface 71a and backup input interface 71b and main process task circuit
Between 76, master control input interface 71a, backup input interface 71b and video decoding circuit 75 are respectively positioned on the defeated of main process task circuit 76
Enter side, video decoding circuit 75 includes the separate video decoding chip of two-way.Control circuit 77 connects video decoding circuit
75th, main process task circuit 76 and video coding circuit 78.Master control output interface 73a, backup output interface 73b and video coding circuit
78 are respectively positioned on the outlet side of main process task circuit 76, and video coding circuit 78 is connected to main process task circuit 76 and master control output interface
Between 73a and backup output interface 73b, and video coding circuit 78 includes the separate video coding chip of two-way.
Hold it is above-mentioned, master control input interface 71a be used for receive input source；Backup input interface 71b is used to receive input source
Backup source, it has same data content with input source.The Zhong Ge roads video decoding chip of video decoding circuit 75 has detection
The function of connected master control input interface 71a or backup input interface 71b aerial lug state simultaneously protects testing result
In the presence of in local register, the testing result can directly report connected control circuit 77.76, main process task circuit
Such as include PLD, as FPGA device etc., control circuit 77 is for example including microcontroller, as MCU etc.；Master control inputs
Interface 71a and backup input interface 71b can be various video interfaces such as DVI, HDMI, VGA, CVBS, SDI, Er Qiezhu
It can be identical video interface or different video interfaces to control input interface 71a and backup input interface 71b；It is main
Control output interface 73a and backup output interface 73b can be various video interfaces such as DVI, HDMI, VGA, CVBS, SDI,
And master control output interface 73a and backup output interface 73b can be that identical video interface or different videos connect
Mouthful.
Furthermore main process task circuit 76 can select defeated from master control input interface 71a receptions under the control of control circuit 77
The backup source for entering source or input source being received from backup input interface 71b carries out data processing, data (such as the video after processing
View data) by being connect after the video coding chip progress Video coding on corresponding road in video coding circuit 78 through being exported by master control
Mouth 73a or backup output interface 73b is exported.Control logic as control circuit 77 can be：According to single as detection
The video decoding circuit 75 that member forms part judges that master control input interface 71a aerial lug state-detection result master control inputs
Whether interface 71a aerial lug state is abnormal；If normal, control main process task circuit 76 connects from master control input interface 71a
Receive input source；, whereas if it is abnormal, then produce input control signal control main process task circuit 76 and switch to from backup input interface
71b receives the backup source of input source, subsequently when the aerial lug state for detecting master control input interface 71a is recovered normally, then to produce
Raw input switchback signal control main process task circuit 76 switches back into from master control input interface 71a again receives input source.Furthermore control
Circuit 77 is defeated to master control according to the Zhong Ge roads video coding chip 78 of video coding circuit 78 that part is formed as detection unit
Outgoing interface 73a aerial lug state-detection result judges whether master control output interface 73a aerial lug state is abnormal；If
Normally, then main process task circuit 76 is controlled from data after master control output interface 73a outputs processing；, whereas if it is abnormal, then produce defeated
Go out control signal control main process task circuit 76 and backup output interface 73b authority is switched into master control output interface to export processing
Data afterwards, subsequently work as and detect that master control output interface 73a aerial lug state recovers normal, then produce output switchback signal control
Main process task circuit 76 processed cancels the ownership of backup output interface 73, so as to be handled again from master control output interface 73a outputs
Data afterwards.
The present embodiment is by configuring master control input interface and backup input interface and configuring master control, the progress of backup output interface
The changeable output of master control/backup, so as to realize the dual Hot Spare of input and output, it can simplify system, lifting system reliability.
Furthermore by configuring video decoding circuit, main process task circuit, control circuit and video coding circuit, it is possible to achieve to video figure
As the processing and input and output of data, and then it can be applied to display screen control system field such as LED display control system and lead
Video processor product in domain.Finally it is worth mentioning that the data input o controller 70 in Fig. 7 can also be realized defeated
Enter multi-level backup and/or output multi-level backup.
In addition, the embodiment of the present invention also provides foregoing various data input o controller 10-70 data can be applied defeated
Enter output control method, and aforementioned data IOC is may be referred to as the data input output control method of offer
Control logic used by 10-70, therefore will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Division, only a kind of division of logic function, can there is other dividing mode, such as multichannel unit or component when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The mutual coupling discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multichannel
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (13)
- A kind of 1. data input o controller, it is characterised in that including：Master control input interface, it is backup input interface, multiple defeated Outgoing interface, detection unit, control circuit and main process task circuit；The detection unit is used to detect the outer of the master control input interface Portion's connection state, the control circuit are used for when the detection unit detects the aerial lug state of the master control input interface Input control signal is produced when abnormal controls the main process task circuit to switch to the backup input from the master control input interface Interface obtains input source, and the control circuit is used to producing output control signal to control the main process task circuit to pass through described Multiple output interfaces carry out redundancy output.
- 2. data input o controller according to claim 1, it is characterised in that the control circuit is used for described Detection unit, which detects, produces input switchback signal control institute when the aerial lug state of the master control input interface recovers normal Main process task circuit is stated to switch to from master control input interface acquisition input source.
- 3. data input o controller according to claim 1, it is characterised in that the backup input interface includes more The individual input interface with different backup priority.
- 4. data input o controller according to claim 1, it is characterised in that the detection unit includes：Video Decoding circuit；The video decoding circuit is connected to the master control input interface and the backup input interface and the main process task Between circuit；The control circuit connects the main process task circuit or the control circuit connect the main process task circuit and The video decoding circuit, to know the aerial lug shape of the master control input interface detected by the video decoding circuit State simultaneously produces the input control signal control master when knowing the aerial lug abnormal state of the master control input interface Process circuit switches to from the backup input interface and obtains input source.
- 5. data input o controller according to claim 4, it is characterised in that including：Video coding circuit, connection Between the main process task circuit and the multiple output interface.
- 6. data input o controller according to claim 4, it is characterised in that including：Multichannel physical layer transceiver Chip, connect the main process task circuit and connect the multiple output interface respectively.
- A kind of 7. data input o controller, it is characterised in that including：First input interface, the second input interface, first is defeated Outgoing interface, the second output interface, PLD and control circuit；First input interface and second input interface point The input side of the PLD is not connected to, and first output interface and second output interface connect respectively In the outlet side of the PLD, the control circuit connects the PLD, for detecting During the aerial lug abnormal state of first input interface, produce input control signal and control the PLD to cut Shift to from second input interface and obtain input source, and for detecting the aerial lug shape of first output interface During state exception, produce output control signal and control the PLD to connect second output interface from backup output Mouth switches to master control output interface.
- 8. data input o controller according to claim 7, it is characterised in that first input interface and described Second input interface is respectively video interface；First output interface and second output interface be respectively video interface or Network interface.
- A kind of 9. data input output control method, it is characterised in that including：Input source is received from first input interface in multiple input interfaces；After handling data corresponding to the input source of reception, redundancy output is carried out by multiple output interfaces；When detecting the aerial lug abnormal state of first input interface, switch to from the multiple input interface One the second input interface receives the backup source of the input source；Wherein described backup source has identical data with the input source Content.
- 10. data input output control method according to claim 9, it is characterised in that the data input output control Method processed also includes：When detecting the aerial lug abnormal state of second input interface, switch to from the multiple defeated The 3rd input interface in incoming interface receives the second backup source of the input source；Wherein described second backup source with it is described Input source has an identical content, and the backup priority of the 3rd input interface is preferential less than the backup of second input interface Level.
- 11. data input output control method according to claim 9, it is characterised in that the data input output control Method processed also includes：When the aerial lug state for detecting first input interface recovers normal, switch to from described the One input interface receives the input source.
- A kind of 12. data input output control method, it is characterised in that including：Input source is received from first input interface in multiple input interfaces；Exported after handling data corresponding to the input source by the master control output interface in multiple output interfaces；When detecting the aerial lug abnormal state of first input interface, switch to from the multiple input interface One the second input interface receives the backup source of the input source；Wherein described backup source has in identical with the input source Hold.
- 13. data input output control method according to claim 12, it is characterised in that the data input output control Method processed also includes：When detecting the aerial lug abnormal state of the master control output interface, by the multiple output interface In one of other output interfaces switch to master control output interface and carry out data output.
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| CN112397012A (en) * | 2019-07-31 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | LED display screen, display control system, receiving card and module controller |
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