CN104332129B - Splicing unit data returning method, splicing unit and splicing display - Google Patents
Splicing unit data returning method, splicing unit and splicing display Download PDFInfo
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Abstract
The embodiment of the invention discloses a splicing unit data returning method, a splicing unit and a splicing display, and solves the technical problem that at present, a plurality of display units are usually connected in a serial port mode, so that whether the display units work normally or not cannot be known, and further the working efficiency is low. The method provided by the embodiment of the invention comprises the following steps: acquiring a data return instruction of a designated splicing unit sent by a control end; controlling the enabling pin of the buffer switch of the appointed splicing unit to be closed according to the data return instruction; and transmitting the board card information of the splicing unit back to the control end through the bus.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of concatenation unit data back method, concatenation unit and spelling
Connect display.
Background technology
Combination is that multiple display units splice the large-scale in display device, the splicing of combination of realization, each
The display unit of splicing is required for an address code or unique identification code.Can be by distant using this address code or identification code
Control or serial ports control brightness, colour temperature, contrast, reproduction ratio of unit etc. respectively.
Connected at present for multiple display units typically by the mode of serial ports, such as pass through net with RJ45 port
Line connection etc., many concatenation unit connection serial ports of in the market can only go to control each display unit by PC end groups in transmission end.
However, above-mentioned connect for multiple display units typically by the mode of serial ports, because no RX ends are read
The information of each display unit, therefore whether the work of each display unit is normal and whether the information of abnormal connection can not be known,
Further cause when it needs to be determined that display unit work whether normal situation when, it is necessary to constantly be adjusted in a pre-installation
Examination, and produce the low technical problem of operating efficiency.
The content of the invention
The embodiments of the invention provide a kind of concatenation unit data back method, concatenation unit and tiled display, solve
Connected at present for multiple display units typically by the mode of serial ports, so that the whether normal work of display unit can not be known
The situation of work, and then cause the low technical problem of operating efficiency.
A kind of concatenation unit data back method provided in an embodiment of the present invention, including：
Obtain the data back instruction for the concatenation unit specified that control end is sent；
The enable pin closure of the buffer switch for the concatenation unit for controlling to specify is instructed according to the data back；
The board information of the concatenation unit is back to the control end by bus.
Alternatively, also include before the data back instruction for obtaining the concatenation unit specified that control end is sent：
Respond the coded command of concatenation unit described in the control end so that all concatenation units possess one a pair
Should ground coded address.
Alternatively, the coded command for the concatenation unit that the control end is sent is responded so that all splicings
Unit possesses after coded address correspondingly, and the data back for obtaining the specified concatenation unit of the transmission of control end instructs it
It is preceding also to include：
The buffer switch for obtaining all concatenation units that control end is sent closes the instruction of path.
Alternatively, the board information includes：
The running parameter of the concatenation unit, working condition and coded address.
Alternatively, the coded command for the concatenation unit that the control end is sent is responded so that all splicings
Unit possesses coded address correspondingly and specifically included：
Respond the coded command for the concatenation unit that the control end is sent；
The geocoding of a concatenation unit is often carried out, by time-multiplexed mode by presently described concatenation unit
Data the control end is back to by the bus.
Alternatively, the coded command for responding the concatenation unit that the control end is sent is specifically included：
The control end sends n times closure switch by the input and instructed to the concatenation unit so that the spelling
The electronic switch closure of order member；
N number of concatenation unit is sent by the input and encodes the instruction reset so that N number of concatenation unit
Coded address reset；
N number of concatenation unit after being reset to coding sends disconnection switch order to the splicing by the input
Unit, and the electronic switch is disconnected；
N number of coded command is sent to the concatenation unit according to preset time period by the input, the coding refers to
Make as increment instruction；
Whether the present encoding for judging the concatenation unit is zero, if so, described in then the concatenation unit is received
Address value entrained by coded command is set to coded address；
The electronic switch for setting the concatenation unit behind coded address is controlled to close by the input.
A kind of concatenation unit provided in an embodiment of the present invention, including：
MCU and buffer switch；
The MCU is connected with the buffer switch by output end；
The buffer switch is connected by bus with outside control end；
Wherein, the MCU includes acquisition module, control module and passback module；
The acquisition module, the data back instruction of the concatenation unit specified for obtaining control end transmission；
The control module, the enable pin for instructing the buffer switch for controlling to specify according to the data back
Closure；
The passback module, for the board information of the concatenation unit to be back into the control end by bus.
Alternatively, the MCU also includes：
Respond module, the coded command for responding the concatenation unit that the control end is sent so that all institutes
State concatenation unit and possess coded address correspondingly.
Alternatively, the acquisition module, is additionally operable to obtain the buffering for all concatenation units that control end is sent
Device switch closes the instruction of path.
Alternatively, the respond module is specifically included：
Submodule is responded, the coded command for responding the concatenation unit that the control end is sent；
Trigger submodule, during geocoding for often carrying out concatenation unit, triggering passback module by when
Divide the mode of multiplexing that the data of presently described concatenation unit are back into the control end by the bus.
Alternatively, the buffer switch is triple gate data buffer.
A kind of tiled display provided in an embodiment of the present invention, including：
Several mosaic screens；
The mosaic screen includes：The concatenation unit described in any one referred in display screen, and the embodiment of the present invention.
Alternatively, the buffer switch of each concatenation unit in several described mosaic screens passes through described total
Line parallel is connected.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of concatenation unit data back method, concatenation unit and the tiled display provided in the embodiment of the present invention, its
In, concatenation unit data back method includes：Obtain the data back instruction for the concatenation unit specified that control end is sent；Control
The enable pin closure of the buffer switch for the concatenation unit specified；The board information of concatenation unit is back to control by bus
End.In the present embodiment, closed by the enable pin of the buffer switch for the concatenation unit for controlling to specify, just can utilize its tri-state
The characteristics of door switch, the board information of currently assigned concatenation unit is only returned only to, solved at present for multiple display units
Connected typically by the mode of serial ports, due to reading the information of each display unit, therefore each display unit without passback end
Whether work is normal and whether the information of abnormal connection can not be known, further causes when it needs to be determined that display unit works
Whether normal situation when, it is necessary to constantly debugged in a pre-installation, and produce the low technical problem of operating efficiency.
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
There is the accompanying drawing used required in technology description to be 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, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 shows for a kind of flow of one embodiment of the concatenation unit data back method provided in the embodiment of the present invention
It is intended to；
Fig. 2 is a kind of flow of another embodiment of concatenation unit data back method provided in the embodiment of the present invention
Schematic diagram；
Fig. 3 is a kind of structural representation of the one embodiment of concatenation unit provided in the embodiment of the present invention；
Fig. 4 is a kind of structural representation of another embodiment of concatenation unit provided in the embodiment of the present invention；
Fig. 5 is a kind of structural representation of the one embodiment of tiled display provided in the embodiment of the present invention.
Embodiment
The embodiments of the invention provide a kind of concatenation unit data back method, concatenation unit and tiled display, solve
Connected at present for multiple display units typically by the mode of serial ports, so that the whether normal of display unit can not be known
The situation of work, and then cause the low technical problem of operating efficiency.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
A kind of one embodiment of concatenation unit data back methods of the Fig. 1 to be provided in the embodiment of the present invention includes：
101st, the data back instruction for the concatenation unit specified that control end is sent is obtained；
In the present embodiment, when PC control ends need to obtain some spelling specified of multiple concatenation units of tiled display
When order member obtains the board information of passback, it is necessary first to which the data back for obtaining the concatenation unit specified of control end transmission refers to
Order, foregoing data back instruction can be first to specified spelling in control end according to the ID coded addresses for the concatenation unit specified
Order member carries out man-to-man selected.
It should be noted that the detailed process of the ID coded addresses of foregoing concatenation unit will be entered in follow-up embodiment
The detailed description of row, is no longer described in detail herein.
It should be noted that, the data back instruction of the concatenation unit specified of the transmission of foregoing acquisition control end is spells
MCU (Micro Control Unit, micro-control unit) in order member is obtained.
102nd, the enable pin of the buffer switch for the concatenation unit for controlling to specify is instructed to close according to data back；
, it is necessary to according to data back after the data back instruction of the concatenation unit specified of transmission of control end is obtained
The enable pin closure of buffer (buffer register) switch for the concatenation unit that instruction control is specified, it is to be understood that MCU is controlled
The enable pin closure of connected buffer switch is made, foregoing MCU output end is connected with buffer switch.
103rd, the board information of concatenation unit is back to control end by bus.
After the enable pin closure of the buffer switch for the concatenation unit that control is specified, MCU is automatically by concatenation unit
Board information is back to control end by bus, it is necessary to which explanation, foregoing bus and the connecting interface of control end can be
Serial ports, can also be RS232 interfaces, not limit specifically herein.
It should be noted that foregoing board information includes the running parameter of concatenation unit, working condition and coded address,
Foregoing working condition can be whether currently assigned concatenation unit is in normal operating conditions.
It is understood that the bus referred in the present embodiment can be further RX buses, or other it can realize
Not limited to this in the data wire of data transfer, the embodiment of the present invention..
In the present embodiment, when applied to the tiled display for including some concatenation units, some concatenation units pass through
Bus parallel connection is connected, and control end is connected with bus end so that the data for the concatenation unit specified are by bus to be time-multiplexed
Mode be back to control end, it is to be understood that when the data back of specified concatenation unit, its buffer switch makes
Can pin closure, the enable pin of other concatenation units is off-state, just realize with the function of buffer switch triple gate by its
The enable pin of its concatenation unit is high-impedance state when being off-state, can be not only to transmit adjusting parameter, control by control end
Signal processed etc. is performed to the MCU of concatenation unit, can also obtain holding for MCU passbacks in a time multiplexed manner by bus
Board parameter after row etc., simultaneously, it is to avoid usual concatenation unit uses amplifier, transport and placing device, open drain and CMOS
(Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor) and TTL
The I of forms such as (Transistor-Transistor Logic, logic gates) O mouthfuls, it is caused still to be led no matter disconnecting
It is logical, can all there is load, and concatenation unit is together in parallel and causes the load of bus circuit to increase, the display unit MCU being strobed
Passback by switch I O be defeated by the signal of control end and can not drive, signal can not be exported the technology that can not be worked
Problem.
It should be noted that, a kind of concatenation unit data back method that the present embodiment is provided can be not only to be applied to spell
Display is connect, can also be and be applied to be uniformly controlled distributed single screen or multihead display chunk.
In the present embodiment, closed, just can utilized by the enable pin of the buffer switch for the concatenation unit for controlling to specify
The characteristics of its tri-state door switch, the board information of currently assigned concatenation unit is only returned only to, solved at present for multiple aobvious
Show that unit is connected typically by the mode of serial ports, due to reading the information of each display unit without RX ends, therefore each shows
Whether cell operation is normal and whether the information of abnormal connection can not be known, further causes when it needs to be determined that display unit
Work whether normal situation when, it is necessary to constantly debugged in a pre-installation, and produce the low technical problem of operating efficiency.
The above is that the process of concatenation unit data back method is described in detail, below will be to most starting to splicing
Process when unit carries out coded address is described in detail, a kind of spelling for referring to Fig. 2 to provide in the embodiment of the present invention
Another embodiment of order metadata retransmission method includes：
201st, the coded command for the concatenation unit that response control end is sent；
In the present embodiment, when PC control ends need the progress to multiple concatenation units of tiled display to specify geocoding
(ID), it is necessary to be connected at the bus end that will be connected in parallel by multiple concatenation units with the interface such as serial ports of control end, control when
Row address autocoding is entered in end by its own mounted software to multiple concatenation units, now, the MCU responses of concatenation unit
The coded command for the concatenation unit that control end is sent so that all concatenation units possess coded address correspondingly.
It should be noted that during the coded command for the concatenation unit that foregoing response control end is sent, PC control ends are to spelling
The progress for connecing multiple concatenation units of display specifies the specific coding process of geocoding (ID) to be as follows：
A) control end sends n times closure switch by input and instructed to MCU so that the electronic cutting being connected with MCU is closed
Close；
B) N number of concatenation unit is sent by input and encodes the instruction reset to MCU so that the volume of N number of concatenation unit
Code address is reset；
C) to coding reset after N number of concatenation unit by input send disconnection switch order to MCU, and cause with
The electronic switch of MCU connections disconnects；
D) N number of concatenation unit after being reset to coding by input according to preset time period send N number of coded command to
MCU, coded command is address increment instruction, it is necessary to which explanation, foregoing preset time period is 100-200 milliseconds, based on every
The secondary coded command sent completes to need the time of a few tens of milliseconds to the coding of concatenation unit, with the execution speed of concatenation unit and
The Configuration of baud rate of serial ports is relevant.
It is understood that foregoing address increment instruction, the unit of such as 3 × 3 displays has 3 × 3 concatenation units,
Control end such as PC ends, it is 1 to send coded command i such as i to first concatenation unit S1, and the setting for making it enter row address i is separated by
Preset time period is to send the increment instruction i+1 of the coded command i based on first concatenation unit S1, example after 100-200 milliseconds
Second concatenation unit S2 is given such as 2, by that analogy, when being separated by preset time period successively and sending to n-th concatenation unit, then first
Such as individual concatenation unit SN coded command is i+N-1, when i is 1, then coded command is N, is not limited specifically herein.
Whether the present encoding for e) judging concatenation unit is zero, if so, step f) is then performed, if it is not, not doing any place then
Reason.
It should be noted that whether the foregoing present encoding for judging concatenation unit is zero, can be foregoing to step
Each concatenation unit in N number of concatenation unit after being reset to coding sends N number of compile by input according to preset time period
Code instruction carry out this step the present encoding for judging concatenation unit whether the mode for being zero.
F) coded command that concatenation unit is received is set to coded address, for example, is when being separated by preset time period
The increment instruction i+1 of the coded command i based on first concatenation unit S1 is sent after 100-200 milliseconds, such as 2 give second
After concatenation unit S2, the present encoding for judging second concatenation unit S2 is zero, then is second by the i+1 encoding settings for being 2
Concatenation unit S2 coded address.
G) switch for controlling coded command to be set to the concatenation unit behind coded address by input is closed so as to rear
When the MCU of continuous concatenation unit carries out encoding setting, it can proceed.
It is understood that whether the present encoding for judging concatenation unit referred in step e is zero, can be foregoing
Each concatenation unit in N number of concatenation unit after being reset to coding sends N number of compile by input according to preset time period
Code instruction carry out this step the present encoding for judging concatenation unit whether the mode for being zero, further for example when to first spell
Order member is completed after encoding setting, repeats step d to g, and each repetitive process is separated by referred in the present embodiment preset
Period, such as 100-200 milliseconds, often performing a step d to g then means the electricity of the concatenation unit by encoding setting is carried out
Sub switch is closed.
It should be noted that the concatenation unit data back method of the present embodiment is aobvious to splicing except foregoing PC control ends
Show that the specific coding process of geocoding (ID) is specified in the progress of multiple concatenation units of device, can be applicable to other codings
Process, other cataloged procedure is known to the skilled person general knowledge, is just no longer described in detail herein.
202nd, the geocoding of a concatenation unit is often carried out, by time-multiplexed mode by the number of current concatenation unit
Control end is back to according to by bus；
In the present embodiment, when the coded command of the concatenation unit at the response control end of abovementioned steps 201 so that all spellings
When order member possesses coded address correspondingly, especially when control end needs to obtain the board information of concatenation unit passback,
The geocoding of a concatenation unit is often carried out, is returned the data of current concatenation unit by bus by time-multiplexed mode
Control end is reached, it is necessary to which explanation, the foregoing board information for obtaining concatenation unit passback, can be in address encoding proce
In, the board information of the concatenation unit passback currently encoded, it is to be understood that control end needs to obtain address volume
Whether multiple concatenation unit connections of the tiled display during code are normal, and abnormal position is at which, when all
During concatenation unit ID autocodings, the MCU of each unit can return to a response signal, and such as M*N unit will return to M*N letter
Number, now their time division multiplex bus, each return signal time interval about 100MS are, it is necessary between explanation, foregoing time
Every duration can be that MCU is configured by control end, do not limit specifically herein, if occur the S signal do not return
Return, illustrate the S concatenation unit bad connection.
It should be noted that the MCU of foregoing each unit can return to a response signal, it is necessary to be irrevocable by disconnecting
The enable pin of the buffer switch of the concatenation unit of response signal, only UNICOM need to return to the buffering of the concatenation unit of response signal
The enable pin of device switch.
203rd, the buffer switch for obtaining all concatenation units of the transmission of control end closes the instruction of path；
When the geocoding of one concatenation unit of every progress, by time-multiplexed mode by the data of current concatenation unit
Control end is back to by bus, it is necessary to obtain a certain of multiple concatenation units of tiled display after detection circuit is normal
When the individual concatenation unit specified obtains the board information of passback, MCU first needs to obtain all splicing lists of the transmission of control end
The buffer switch of member closes the instruction of path, then the pin that enables of all buffer switch is breaking state so that Suo Youhuan
Rush device switch and be in high-impedance state.
204th, the data back instruction of the concatenation unit specified of the transmission of control end is obtained；
In the present embodiment, after the buffer switch for obtaining all concatenation units of transmission of control end closes path,
Firstly the need of the data back instruction of the concatenation unit specified for the transmission for obtaining control end, foregoing data back instruction can be with
It is that man-to-man select first is carried out to specified concatenation unit according to the ID coded addresses for the concatenation unit specified in control end.
It should be noted that the detailed process of the ID coded addresses of foregoing concatenation unit will be entered in follow-up embodiment
The detailed description of row, is no longer described in detail herein.
It should be noted that, the data back instruction of the concatenation unit specified of the transmission of foregoing acquisition control end is spells
MCU (Micro Control Unit, micro-control unit) in order member is obtained.
205th, the enable pin closure of the buffer switch for the concatenation unit that control is specified；
, it is necessary to control the spelling specified after the data back instruction of the concatenation unit specified of transmission of control end is obtained
The enable pin closure of the buffer switch of order member, it is to be understood that MCU controls the enable of connected buffer switch
Pin is closed, and foregoing MCU output end is connected with buffer switch.
206th, the board information of concatenation unit is back to control end by bus.
After the enable pin closure of the buffer switch for the concatenation unit that control is specified, MCU is automatically by concatenation unit
Board information is back to control end by bus, it is necessary to which explanation, foregoing bus and the connecting interface of control end can be
Serial ports, can also be RS232 interfaces, not limit specifically herein.
It should be noted that foregoing board information includes the running parameter of concatenation unit, working condition and coded address,
Foregoing working condition can be whether currently assigned concatenation unit is in normal operating conditions.
In the present embodiment, when applied to the tiled display for including some concatenation units, some concatenation units pass through
Bus parallel connection is connected, and control end is connected with bus end so that the data for the concatenation unit specified are by bus to be time-multiplexed
Mode be back to control end, it is to be understood that when the data back of specified concatenation unit, its buffer switch makes
Can pin closure, the enable pin of other concatenation units is off-state, just realize with the function of buffer switch triple gate by its
The enable pin of its concatenation unit is high-impedance state when being off-state, can be not only to transmit adjusting parameter, control by control end
Signal processed etc. is performed to the MCU of concatenation unit, can also obtain holding for MCU passbacks in a time multiplexed manner by bus
Board parameter after row etc., simultaneously, it is to avoid usual concatenation unit uses amplifier, transport and placing device, open drain and CMOS and TTL
The I of forms such as (Transistor-Transistor Logic, logic gates) O mouthfuls, it is caused still to be led no matter disconnecting
It is logical, can all there is load, and concatenation unit is together in parallel and causes the load of bus circuit to increase, the display unit MCU being strobed
Passback by switch I O be defeated by the signal of control end and can not drive, signal can not be exported the technology that can not be worked
Problem.
It should be noted that, a kind of concatenation unit data back method that the present embodiment is provided can be not only to be applied to spell
Display is connect, can also be and be applied to be uniformly controlled distributed single screen or multihead display chunk.
In the present embodiment, closed, just can utilized by the enable pin of the buffer switch for the concatenation unit for controlling to specify
The characteristics of its tri-state door switch, the board information of currently assigned concatenation unit is only returned only to, solved at present for multiple aobvious
Show that unit is connected typically by the mode of serial ports, due to reading the information of each display unit without RX ends, therefore each shows
Whether cell operation is normal and whether the information of abnormal connection can not be known, further causes when it needs to be determined that display unit
Work whether normal situation when, it is necessary to constantly debugged in a pre-installation, and produce the low technical problem of operating efficiency,
And, when to concatenation unit geocoding, by bus by the whether normal information of each MCU current connection line with
Response signal mode returns to the function for the wireline inspection for just realizing initial mosaic display screen.
Referring to Fig. 3, a kind of one embodiment of the concatenation unit provided in the present embodiment includes：
MCU31 and buffer switch 32, the buffer switch 32 are triple gate data buffer；
MCU31 is connected with buffer switch 32 by output end；
Buffer switch 32 is connected by bus 33 with outside control end.
Wherein, foregoing MCU31 includes acquisition module 311, control module 312 and passback module 313；
Acquisition module 311, the data back instruction of the concatenation unit specified for obtaining control end transmission；
Control module 312, the enable pin for instructing the buffer switch for controlling to specify according to the data back
Closure；
Module 313 is returned, for the board information of the concatenation unit to be back into the control end by bus 33.
In the present embodiment, it is connected by MCU31 with buffer switch 32 by output end, just avoids usual concatenation unit
Use amplifier, transport and placing device, open drain and CMOS and TTL (Transistor-Transistor Logic, logic gates)
Etc. O mouthfuls of the I of form, caused still turns on no matter disconnecting, and can all have load, and concatenation unit is together in parallel and causes total
The load of line circuit is increased, the display unit MCU passbacks being strobed by switch I O be defeated by the signal of control end can not band
It is dynamic, signal can not be exported the technical problem that can not be worked.
The above is that the structure of concatenation unit is described in detail, and the add-on module in MCU will be carried out below detailed
Description, referring to Fig. 4, a kind of another embodiment of the concatenation unit provided in the present embodiment includes：
MCU31 includes acquisition module 311, control module 312 and passback module 313；
Acquisition module 311, the data back instruction of the concatenation unit specified for obtaining control end transmission, further
Ground, the buffer switch that acquisition module 311 is additionally operable to obtain all concatenation units that control end is sent closes path
Instruction；
Control module 312, the enable pin for instructing the buffer switch for controlling to specify according to the data back
Closure；
Module 313 is returned, for the board information of the concatenation unit to be back into the control end by bus 33.
MCU31 can further include in the present embodiment：
Respond module 314, the coded command for responding the concatenation unit that the control end is sent so that all
The concatenation unit possesses coded address correspondingly；
Wherein, respond module 314 can further include：
Submodule 3141 is responded, the coded command for responding the concatenation unit that the control end is sent；
Submodule 3142 is triggered, during geocoding for often carrying out concatenation unit, triggering passback module 313
The data of presently described concatenation unit are back to by the control end by the bus 33 by time-multiplexed mode.
In the present embodiment, it is connected by MCU31 with buffer switch 32 by output end, just avoids usual concatenation unit
Use amplifier, transport and placing device, open drain and CMOS and TTL (Transistor-Transistor Logic, logic gates)
Etc. O mouthfuls of the I of form, caused still turns on no matter disconnecting, and can all have load, and concatenation unit is together in parallel and causes total
The load of line circuit is increased, the display unit MCU passbacks being strobed by switch I O be defeated by the signal of control end can not band
It is dynamic, signal can not be exported the technical problem that can not be worked, meanwhile, by the buffer for the concatenation unit for controlling to specify
The enable pin closure of switch 32, the characteristics of just can utilizing its tri-state door switch is only returned only to currently assigned concatenation unit
Board information, solves and is connected at present for multiple display units typically by the mode of serial ports, because no RX ends are read
The information of each display unit, therefore whether the work of each display unit is normal and whether the information of abnormal connection can not be known,
Further cause when it needs to be determined that display unit work whether normal situation when, it is necessary to constantly be adjusted in a pre-installation
Examination, and produce the low technical problem of operating efficiency.
Referring to Fig. 5, a kind of one embodiment of the tiled display provided in the present embodiment includes：
Several mosaic screens；
Mosaic screen includes：Concatenation unit 41 in display screen, and embodiment shown in Fig. 3.
The buffer switch 32 of each concatenation unit 41 in several mosaic screens is connected in parallel by bus 33；
It is understood that foregoing concatenation unit 41 is arranged on the back of display screen.
In the present embodiment, when applied to the tiled display for including some concatenation units 41, some concatenation units 41
It is connected in parallel by bus 33, control end is connected with bus end so that the data for the concatenation unit 41 specified pass through bus 33
Control end is back in a time multiplexed manner, it is to be understood that when the data back of specified concatenation unit 41, it delays
The enable pin closure of device switch 32 is rushed, the enable pin of other concatenation units 41 is off-state, is just realized with buffer switch
The function of 32 triple gates is high-impedance state when being off-state by the enable pin of other concatenation units, can be not only by control
End transmission adjusting parameter, control signal etc. are performed to the MCU31 of concatenation unit, can also be time-multiplexed by bus 33
Mode obtain board parameter etc. after the execution of MCU31 passbacks.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, 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
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, such as multiple units or component
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 coupling each other discussed or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces
Close or communicate to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious 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 multiple
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.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member 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 realized using in the form of SFU software functional unit and as independent production marketing or used
When, it can be stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially
The part contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are to cause a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of concatenation unit data back method, it is characterised in that including：
Obtain the data back instruction for the concatenation unit specified that control end is sent；
The enable pin closure of the buffer switch for the concatenation unit for controlling to specify is instructed according to the data back；
The board information of the concatenation unit is back to the control end by bus；
Also include before the data back instruction for obtaining the concatenation unit specified that control end is sent：
Respond the coded command for the concatenation unit that the control end is sent so that all concatenation units possess one by one
Accordingly coded address；
Respond the coded command for the concatenation unit that the control end is sent so that all concatenation units possess one by one
Accordingly coded address is specifically included：
Respond the coded command for the concatenation unit that the control end is sent；
The geocoding of a concatenation unit is often carried out, by time-multiplexed mode by the number of presently described concatenation unit
The control end is back to according to by the bus；
The coded command for responding the concatenation unit that the control end is sent is specifically included：
The control end sends n times closure switch by input and instructed to the concatenation unit so that the concatenation unit
Electronic switch is closed；
N number of concatenation unit is sent by the input and encodes the instruction reset so that the volume of N number of concatenation unit
Code address is reset；
Switch order is disconnected to the splicing list to encoding N number of concatenation unit after resetting and being sent by the input
Member, and the electronic switch is disconnected；
N number of coded command is sent to the concatenation unit according to preset time period by the input, the coded command is
Increment instruction；
Whether the present encoding for judging the concatenation unit is zero, if so, the coding for then receiving the concatenation unit
The entrained address value of instruction is set to coded address；
The electronic switch for setting the concatenation unit behind coded address is controlled to close by the input.
2. concatenation unit data back method according to claim 1, it is characterised in that the response control end is sent
The coded command of the concatenation unit so that all concatenation units possess after coded address correspondingly, is obtained
Also include before the data back instruction of the specified concatenation unit of the transmission of control end：
The buffer switch for obtaining all concatenation units that control end is sent closes the instruction of path.
3. concatenation unit data back method according to claim 1, it is characterised in that the board information includes：
Running parameter, working condition and the coded address of the concatenation unit.
4. a kind of concatenation unit, it is characterised in that including MCU and buffer switch；
The MCU is connected with the buffer switch by output end；
The buffer switch is connected by bus with outside control end；
Wherein, the MCU includes acquisition module, control module and passback module；
The acquisition module, the data back instruction of the concatenation unit specified for obtaining control end transmission；
The control module, for being instructed the enable pin for the buffer switch for controlling to specify to close according to the data back
Close；
The passback module, for the board information of the concatenation unit to be back into the control end by bus.
5. concatenation unit according to claim 4, it is characterised in that the MCU also includes：
Respond module, the coded command for responding the concatenation unit that the control end is sent so that all spellings
Order member possesses coded address correspondingly.
6. concatenation unit according to claim 4, it is characterised in that the acquisition module, is additionally operable to obtain control end hair
The buffer switch of all concatenation units sent closes the instruction of path.
7. concatenation unit according to claim 5, it is characterised in that the respond module is specifically included：
Submodule is responded, the coded command for responding the concatenation unit that the control end is sent；
Submodule is triggered, during geocoding for often carrying out concatenation unit, triggering passback module is multiple by the time-division
The data of presently described concatenation unit are back to the control end by mode by the bus.
8. concatenation unit according to claim 4, it is characterised in that the buffer switch is triple gate data buffering
Device.
9. a kind of tiled display, it is characterised in that including：
Several mosaic screens；
The mosaic screen includes：Display screen, and the concatenation unit as described in any one in claim 4 to 8；
The concatenation unit is arranged on the display screen back.
10. tiled display according to claim 9, it is characterised in that each described in several described mosaic screens
The buffer switch of concatenation unit is connected by the bus parallel connection.
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| CN201410593436.6A CN104332129B (en) | 2014-10-28 | 2014-10-28 | Splicing unit data returning method, splicing unit and splicing display |
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| CN201410593436.6A CN104332129B (en) | 2014-10-28 | 2014-10-28 | Splicing unit data returning method, splicing unit and splicing display |
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| CN109903677B (en) * | 2019-02-25 | 2021-04-27 | 京东方科技集团股份有限公司 | Display assembly |
| CN110932941B (en) * | 2019-12-12 | 2021-08-17 | 深圳创维数字技术有限公司 | Cloud screen connection state detection method, server and storage medium |
| CN111475368A (en) * | 2020-02-29 | 2020-07-31 | 新华三信息安全技术有限公司 | Serial port cascade regulation and control method and serial port equipment |
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| CN1305014C (en) * | 2004-08-16 | 2007-03-14 | 黄珏华 | Electronic display device composed of address display unit |
| KR100815587B1 (en) * | 2006-01-17 | 2008-03-20 | 빛샘전자주식회사 | Open/short detecting arrapatus and method for led dot matrix module |
| CN101009074B (en) * | 2006-12-13 | 2011-05-11 | 康佳集团股份有限公司 | A LED scanning board with the self-testing function and its testing method |
| CN101719309B (en) * | 2009-11-17 | 2011-08-17 | 西安诺瓦电子科技有限公司 | System and method for monitoring running state of intelligent LED display |
| CN102750896B (en) * | 2012-06-25 | 2015-12-09 | 西安诺瓦电子科技有限公司 | A kind of LED display condition checkout gear and detection method |
| CN103500552B (en) * | 2013-09-26 | 2015-09-16 | 西安诺瓦电子科技有限公司 | LED display control card |
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