CN102123247B - Loop-connection system for splicing unit and implementation method thereof - Google Patents
Loop-connection system for splicing unit and implementation method thereof Download PDFInfo
- Publication number
- CN102123247B CN102123247B CN2010106185963A CN201010618596A CN102123247B CN 102123247 B CN102123247 B CN 102123247B CN 2010106185963 A CN2010106185963 A CN 2010106185963A CN 201010618596 A CN201010618596 A CN 201010618596A CN 102123247 B CN102123247 B CN 102123247B
- Authority
- CN
- China
- Prior art keywords
- signal
- concatenation unit
- ring
- unit
- control command
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Studio Circuits (AREA)
Abstract
The invention discloses a loop-connection system for a splicing unit and an implementation method thereof; and the splicing unit comprises a front end splicing device and a rear end splicing device. The loop connection of a video signal and a control instruction is realized through a signal loop-connection system and a control instruction loop-connection system. The video signal comprises various types of formats and has very strong anti-interference ability and good definition, and the control device can independently control any splicing unit so as to greatly facilitate the flexibility of operation.
Description
Technical field
The present invention relates to concatenation unit ring logical technical field, particularly ring way system and its implementation of a kind of concatenation unit.
Background technology
Growing along with monitoring technique, the monitor large screen splicing is widely used in safety-protection system or other system, and the large screen splicing of high-definition signal has especially developed into the main flow of following monitor large screen splicing.Now, not only can utilize a monitor to monitor, also have and utilized monitor joined screen to carry out the amplification Display Technique of vision signal.
But, present large screen splicing technology can only show the seldom vision signal of way mostly, and to could realize the function of vision signal tiled display on monitor joined screen with the processing that the large screen splicing controller carries out vision signal, on the other hand, present large screen splicing technology can only show the ordinary video signal, can not realize that the large screen splicing of high-definition signal shows.
In view of this, need to provide a kind of new monitor joined screen technology.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide ring way system and its implementation of a kind of concatenation unit, can only carry out the analog video signal splicing to solve ring way system of the prior art, and the poor anti jamming capability of described vision signal, the problem that described concatenation unit can not be controlled separately.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of concatenation unit, wherein, described concatenation unit comprises the display unit for display video signal, the signal end daughter board that is used for receiving input signal, splicing fore device and splicing back-end device; Described signal end daughter board, splicing fore device and be connected back-end device and connect respectively; Described display unit connects the splicing back-end device; Described splicing rear end comprises the second microprocessor and HDMI switch, wherein:
The HDMI switch, connect described signal end daughter board, splicing fore device and the second microprocessor, be used for according to control command, one of them of the external vision signal of selective reception and local video signal is also as the information source of concatenation unit or as the signal output of the logical output of ring;
The second microprocessor, be used for receiving the signal that the HDMI switch sends, and sends after treatment display unit to;
Described signal end daughter board comprises local video signal input port, ring messenger input interface, ring messenger output interface, control command input interface, control command output interface;
Described splicing fore device comprises first microprocessor;
The local video signal input port, be used for receiving local video signal and outputing to first microprocessor;
Ring messenger input interface, connect the HDMI switch, is used for receiving external vision signal and outputing to the HDMI switch;
Ring messenger output interface, connect the HDMI switch, is used for the external vision signal of the logical output of conduct ring of output HDMI switch selection;
The control command input interface, be used for receiving the external control instruction and sending the HDMI switch to;
The control command output interface, be used for the control command of control device transmission is sent to next concatenation unit.
Described first microprocessor, be used for receiving local video signal, and convert local video signal to Low Voltage Differential Signal;
Described concatenation unit, wherein, described splicing fore device also comprises HDMI encoder and concatenation unit coding unit; Wherein:
The HDMI encoder, connect first microprocessor, is used for receiving the Low Voltage Differential Signal that first microprocessor transmits, and Low Voltage Differential Signal carried out transform coding process, and the signal after transform coding is processed is exported to the HDMI switch.
Described concatenation unit, wherein, described splicing back-end device also comprises signal adjustment unit, described signal adjustment unit connects described HDMI switch, adjust processing for the external vision signal that ring messenger input interface is sent to the HDMI switch, and will be through adjusting the external vision signal output of processing by the HDMI switch.
Described concatenation unit, wherein, described signal adjustment unit is used for power and the integrality of the external vision signal that transmits according to ring messenger input interface it is recovered reduction and shaping filter.
A kind of ring way system of concatenation unit, comprise two or more concatenation unit and control device, and wherein, described concatenation unit comprises display unit, signal end daughter board, splicing fore device and the splicing back-end device for display video signal; Described signal end daughter board comprises local video signal input port, ring messenger input interface, ring messenger output interface, control command input interface, control command output interface; Described splicing fore device comprises first microprocessor, HDMI encoder and concatenation unit coding unit; Described splicing rear end comprises the second microprocessor and HDMI switch; Wherein:
The local video signal input port, be used for receiving local video signal and outputing to first microprocessor;
Ring messenger input interface, connect the HDMI switch, is used for receiving external vision signal and outputing to the HDMI switch;
Ring messenger output interface, connect the HDMI switch, is used for the external vision signal of the logical output of conduct ring of output HDMI switch selection;
The control command input interface, be used for the control command of receiving control device and send the HDMI switch to;
The control command output interface, be used for the control command of control device transmission is sent to next concatenation unit.
First microprocessor, be used for receiving local video signal, and convert local video signal to low-voltage differential signal transmission to the HDMI encoder;
The HDMI encoder, connect first microprocessor, is used for receiving the Low Voltage Differential Signal that first microprocessor transmits, and Low Voltage Differential Signal carried out transform coding process, and the signal after transform coding is processed is exported to the HDMI switch;
Described HDMI switch, for the control command according to control device, one of them of the external vision signal of selective reception and local video signal also exported as the information source of concatenation unit or the signal of the logical output of conduct ring;
Described the second microprocessor, be used for receiving the signal that the HDMI switch sends, and sends after treatment display unit to;
Described control device, be used for receiving user's operation, sends corresponding control command.
The ring way system of described concatenation unit, wherein, the ring messenger output interface of described concatenation unit is connected in series with the ring messenger input interface of next concatenation unit and the ring messenger output interface of all concatenation units forms and joins end to end with ring messenger input interface, is used for realizing that the ring of vision signal is logical.
The ring way system of described concatenation unit, wherein, in described each concatenation unit, the control command input interface of first concatenation unit connects the control command output port of control device, the control command output interface of all the other concatenation units is connected in series with the control command input interface of next concatenation unit, is used for realizing that the ring of control command is logical.
The ring way system of described concatenation unit, wherein, described splicing back-end device also comprises signal adjustment unit, described signal adjustment unit connects described HDMI switch, adjust processing for the external vision signal that ring messenger input interface is sent to the HDMI switch, and will be through adjusting the external vision signal output of processing by the HDMI switch.
A kind of implementation method of ring way system of concatenation unit wherein, comprises the following steps:
S1, the control command of concatenation unit receiving control device, control HDMI switch connection local video input port or ring messenger input port, obtain input signal, again according to control command, described input signal is sent to display unit after the second microprocessor processes and/or described input signal is sent to the ring messenger input interface of next concatenation unit;
S2, concatenation unit is communicated to next concatenation unit by the control command output interface with control command.
The implementation method of the ring way system of described concatenation unit, wherein, described step S1 further comprises after by signal adjustment unit, the external vision signal that is sent to the HDMI switch by ring messenger input interface being adjusted processing and sends the second microprocessor or next concatenation unit to again.
Ring way system and its implementation of concatenation unit provided by the invention, described concatenation unit comprise splicing fore device and splicing back-end device, and described splicing back-end device further comprises the HDMI switch.Can realize the gating to local video signal or external vision signal, described vision signal comprises multiple format, and have very strong antijamming capability and good definition, and described control device can be controlled separately any one concatenation unit, greatly facilitates the flexibility of operation.
Description of drawings
Fig. 1 is the schematic diagram of the concatenation unit of the embodiment of the present invention.
Fig. 2 is the concatenation unit connection diagram of the ring way system of the embodiment of the present invention.
Fig. 3 is the schematic diagram of the ring way system of second embodiment of the invention.
Fig. 4 is the interface schematic diagram of control device of the monitor joined screen of the embodiment of the present invention.
Fig. 5 is the flow chart of monitor joined screen execution mode of the present invention.
Embodiment
The invention provides a kind of ring way system of concatenation unit, possess multi-channel video signal Presentation Function and high-definition signal tiled display,, simultaneously by concatenation unit is encoded, realize the independent operation of control device to concatenation unit.
For making purpose of the present invention, technical scheme and effect clearer, clear and definite, the present invention is described in more detail referring to the accompanying drawing examples.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1, Fig. 1 is the schematic diagram of the concatenation unit of the embodiment of the present invention.As shown in the figure, described concatenation unit comprises display unit, signal end daughter board, splicing fore device and splicing back-end device.Described display unit connects splicing fore device and splicing back-end device; Described signal end daughter board, splicing fore device and be connected back-end device and connect respectively.
Further, described display unit is used for display video signal; Described signal end daughter board comprise for the local video signal input port of input local video signal, be used for inputting external vision signal the DVI input interface, be used for exporting external vision signal the DVI output interface, be used for the receiving control device transmission control command the control command input interface and be used for the control command of control device transmission is sent to the control command output interface of next concatenation unit.
Wherein, described local video signal input port connects low microprocessor, the DVI input interface is ring messenger input interface, connect the splicing back-end device, the DVI output interface, for ring messenger output interface, connects the splicing back-end device, external vision signal is the ring messenger, the control command input interface connects the splicing back-end device, is used for receiving the external control instruction, and the control command output interface is used for described external control instruction output.In the present embodiment, described local video signal comprises the vision signal of CVBS, Y/C, YPbPr, VGA, HDMI and six kinds of forms of DVI; Further, local video signal can also comprise the vision signal of other types.The input of described control command, output interface adopt the RS232 interface, have that transmission is convenient, transmission range increases, the good texts of sharing nature.
Described splicing fore device comprises first microprocessor, HDMI encoder and concatenation unit coding unit.Specifically, described first microprocessor connects the signal end daughter board, be used for converting local video signal to low-voltage differential signal transmission to the HDMI encoder, first microprocessor has the ability of digital video signal processing, and the local video signal input port can directly be connected with the pin of first microprocessor.Described first microprocessor can also be connected the information source in user-selected according to user's operational order, carries out the processing of vision signal.Described HDMI encoder connects first microprocessor, being used for that the Low Voltage Differential Signal that first microprocessor transmits is carried out transform coding processes, convert the HDMI digital signal to, simultaneously to this HDMI encoding digital signals, to guarantee that controlling software controls accurately to it; If input is general analogue signal, the HDMI encoder becomes the HDMI signal with its digital coding, and encodes; If input is the HDMI digital signal, the HDMI encoder gets final product its coding output.Described concatenation unit coding unit, be used for concatenation unit is encoded.
In the present embodiment, described concatenation unit coding unit is toggle switch, and it has eight pins (PIN0 is to PIN7), can support 8 codings, and described eight pins are connected respectively to 8 I/O mouths of first microprocessor.When concatenation unit is carried out hardware encoding, control device sends the control command that reads the concatenation unit sequence number for each concatenation unit, the first microprocessor of concatenation unit reads eight pins (PIN0 is to PIN7) of toggle switch successively: wherein, high level is 1(dial-up gating), low level is not gating of 0(dial-up), toggle switch can arrange arbitrarily, from 00000000(0), 00000001(1), until 11111111(255), totally 256 data, so these eight toggle switchs can be supported the coding of 256 concatenation units.The state of first microprocessor follow-up toggle switch, read binary data by 8 I/O mouths, and these data stored into and specify in register.If while re-powering, the data that read and the data of register-stored can be compared,, if inconsistent, upgrade the storage data.In the operation of serial-port process, according to serial port command, register is carried out addressing, if sequence number is consistent, response command, if sequence number is inconsistent, response command not, and, with this sequence number of differentiating concatenation unit, complete the hardware encoding to concatenation unit.
In the above-described embodiments, concatenation unit coding unit of the present invention is toggle switch, and it is encoded to concatenation unit by hardware, in order to determine the position of each concatenation unit at the system combination, but, in other embodiments, concatenation unit of the present invention also can adopt Software Coding.Particularly, described concatenation unit can arrange an address storaging unit: store sequence number corresponding to described concatenation unit, this address storaging unit has comprised discrimination bit and data bit, when control device conducts interviews to each concatenation unit, can read the sequence number of described concatenation unit, this sequence number represents the position encoded of concatenation unit, by sequence number, realizes the control of system to each concatenation unit.
Described splicing rear end comprises HDMI switch and the second microprocessor, wherein, described HDMI switch is used for the instruction according to control device, select external vision signal or the local video signal information source as concatenation unit, simultaneously vision signal is isolated amplification, described HDMI switch connects HDMI encoder, the second microprocessor, ring messenger input interface, ring messenger output interface and control command input interface.Particularly, the HDMI switch is 2 to advance the 2 HDMI switching chips that go out, comprise the input of the machine vision signal and the input of ring messenger, and mosaic screen shows and the output of ring messenger, and the relevant information of output is kept in its inner two registers (EEPROM), comprise the logical output register of display register and ring, respectively in requisition for showing and encircling, lead to two kinds of situations of output on display unit.Described the second microprocessor, be used for the signal of HDMI switch output is carried out the vision signal processing, and be sent to the display unit demonstration.
Specifically, concerning single concatenation unit, it is by the instruction of control command input interface acceptance from PC, for the situation that signal need to be shown on display unit, system is carried out addressing to display register, according to addressing results, when result is to use the machine vision signal as when input, the HDMI switch sends and goes code by addressing register, connects the local video input switch, and the machine vision signal is sent to display unit; When result is to use the ring messenger as when input, the HDMI switch sends and goes code by addressing register, connects ring messenger input switch, will encircle messenger and be sent to display unit.In like manner, in the time of hoop need to being led to output according to the instruction of system control device, system is carried out addressing to encircling logical output register, according to addressing results, when result is to use the machine vision signal as when input, the HDMI switch sends and goes code by addressing register, connects the local video input switch, with the logical output of the machine vision signal ring; When result is to use the ring messenger as when input, the HDMI switch sends and goes code by addressing register, connects ring messenger input switch, will encircle that logical input signal ring is logical to be exported.In addition,, when the machine vision signal has when a plurality of, can control the splicing fore device by system control device and select.
In addition, the splicing back-end device also arranges a signal adjustment unit, and this signal adjustment unit connects the HDMI switch, for the ring messenger that ring messenger input interface is sent to the HDMI switch, carries out suitable adjustment.Particularly, this signal adjustment unit recovers reduction and shaping filter according to power and the integrality of input signal to signal, deliver to finally the second microprocessor and do the processing of amplification tiled display, if simultaneously need to be with the logical output of hoop, signal is shielded to amplify and process, the parameters such as amplitude, clock and gain to the logical output register corresponding address of the ring of HDMI switch are adjusted in real time, complete are transferred to next concatenation unit with the HDMI digital signal is undistorted finally.
Please continue to consult Fig. 2, Fig. 2 is the schematic diagram of the ring way system of the embodiment of the present invention.For convenience of drawing, DVI input interface, DVI output interface represent with DVI IN and DVI OUT respectively, control command input interface, control command output interface represent with RS232 IN and RS232 OUT respectively, and concatenation unit 9 represents to unit with unit 1, unit 2 respectively.As shown in the figure, the embodiment of the present invention provides a kind of monitor joined screen that consists of 9 concatenation units, wherein, the RS232 IN of unit 1 is connected (in the present embodiment with control device, control device is PC), be used for the control command of receiving control device, the RS232 OUT of unit 1 is connected with the RS232 IN of unit 2, be used for 2 transfer control instructions to unit, the RS232 OUT of unit 2 is connected with the RS232 IN of unit 3, the like, complete reception and the transmission of 9 concatenation unit control commands; The DVI IN of unit 1 is connected with the DVI OUT of unit 9, and the DVI OUT of unit 1 is connected with the DVI IN of unit 2, and the DVI OUT of unit 2 is connected with the DVI IN of unit 3, the like, realize that the ring of DVI vision signal leads to and splicing.
Please continue to consult Fig. 3, Fig. 3 is the schematic diagram of the ring way system of second embodiment of the invention.As shown in the figure, described ring way system comprises 4 concatenation units, and the vision signal 121 of sending by control device 100 and control command 122 form ring in the first concatenation unit 111, the second concatenation unit 112, the 3rd concatenation unit 113, the 4th concatenation unit 114 logical.
In the embodiment of the present invention, adopt the control device of PC as whole system, be used for receiving user's operation, and send relevant control command to each concatenation unit.It is equipped with pre-designed monitor splicing and controls software, can adopt interface and the code that VC++ carries out to write (also can adopt other forms of code and interface to design), be called " monitor joined screen control software " in the present embodiment, control surface chart as shown in Figure 4, comprise the contents such as distributing position, numbering, feature operation viewing area of each concatenation unit.Wherein, the feature operation viewing area comprises the contents such as splicing function choice box, systemic-function choice box, unit function choice box, scenes function choice box; Splicing function choice box can adopt the mode of drop-down menu, comprise image source, splicing regions, splicing, full frame, the option such as decompose, copy, wherein, the image source comprises unit, information source and channel options, concatenation unit can adopt the mode of drop-down menu, comprise unit 1, unit 2, unit 3, unit 9 amounts to nine options, and the user can be in PC end any one in choosing this option of drop-down menu of originate by image, represents that control command that PC sends is that signal for certain concatenation unit splices; The splicing regions choice box, the user can need determine the unit area of splicing by the operation to this choice box, realize whole concatenation units or the wherein splicing of certain several concatenation unit; The information source choice box is used for selecting from the multi-signal form of local information source or external information source for the user a kind of, as from CVBS_IN, and Y/C_IN, in YPbPr, VGA, HDMI, DVI, selection is a kind of; Demonstration on monitor joined screen can be divided into two kinds: ring is logical, and the concatenation unit that expression is chosen all independently shows the information source of choosing, and namely shows the same content; Splicing, the information source that the common tiled display of concatenation unit that expression is chosen is chosen, namely be combined into a width picture, and each concatenation unit only shows the part of information source picture.
After the user sets by above-mentioned control interface, " monitor joined screen control software " can be with user's setting, be encoded into order data according to the coded system of appointing in advance, send the data to concatenation unit 1 by the control command input interface again, and each concatenation unit connects successively by control command input interface, control command output interface, so each concatenation unit can be received user's the order that arranges.After each concatenation unit was received control command, system can be carried out addressing to each concatenation unit, reads the sequence number of each concatenation unit.If the unit that the sequence number of concatenation unit and PC are corresponding is consistent, carry out this unit operations, if inconsistent, undo.
For selecting the ring intervisibility concatenation unit of signal frequently, if display mode is splicing, the second microprocessor is just according to self concatenation unit sequence number, obtain oneself being positioned the position in monitor joined screen, calculate should display video signal which part after, carry out again the vision signal cutting, vision signal after cutting is carried out the full screen display of unit, all select the concatenation unit of external vision signal all can carry out in this manner the processing of vision signal, and tiled display that so just can vision signal is complete out; If display mode is logical for ring, from its DVI input interface receiving digital video signal, the digital video signal that receives is carried out sending display to show after Graphics Processing, like this, the concatenation unit of all external digital video signals of selection is all processed like this, separately complete picture of independent demonstration.
Please continue to consult Fig. 4, if the user needs to show the different vision signal in three tunnels by the concatenation unit 7 in interface as shown in the figure, concatenation unit 8 and concatenation unit 9: unit 7 is AV, unit 8 is VGA, unit 9 is DVI, other 1-6 concatenation unit amplifies the DVI signal (tiled display) in display splicing unit 9, can be by the following realization that arranges:
The AV interface of AV signal from the local video signal interface of concatenation unit 7 is input in the monitor joined screen system; The VGA interface of VGA signal from the local video signal interface of concatenation unit 8 is input in the monitor joined screen system; The DVI interface of DVI signal from the local video signal interface of concatenation unit 9 is input in the monitor joined screen system; The logical DVI of ring that remaining 1-6 unit input information source switches to respectively the machine is input in the monitor joined screen system.
The RS232 of control device output control interface is connected with the RS232 IN of unit 1, and the RS232 OUT of unit 1 is connected with the RS232 IN of unit 2, the like, until the RS232 OUT of unit 8 is connected with the RS232 IN of unit 9.
Then, encode to concatenation unit, embodiment that can corresponding front concatenation unit adopts hardware encoding, can certainly adopt Software Coding, below is described respectively:
Software Coding: the user, menu is set, the sequence number of each concatenation unit is set respectively, the rule of setting is pressed from left to right, and order from top to bottom, namely by 1,2,3; 4,5,6; 7,8,9 arrange respectively, first in unit, 1 menu is set, by remote controller or other control systems (can be the control panel of PC or concatenation unit itself here) setting Arabic numerals 1, system stores data in the address storaging unit of this concatenation unit automatically, the numbering of the setting unit that uses the same method 2-9 corresponds to 2,3,4 ... 9, the software coding.
Hardware encoding: the toggle switch to each concatenation unit carries out hardware encoding, for example, concatenation unit 1 is set to 00000001, and concatenation unit 2 is set to 00000010 ... concrete process with reference to above-mentioned toggle switch hardware encoding.Can read by the first microprocessor of each concatenation unit above-mentioned binary signal during the PC addressing, and take this, differentiate sequence number as concatenation unit, namely complete hardware encoding.
in the control interface of control device (PC), choosing unit in the image source by splicing function choice box is 9, the DVI information source is selected in the signal source, (native system is supported outside expansion to the channel selecting acquiescence, when matrix-expand, concerning PC end software, only fabric protocol need to be increased in " monitor joined screen control system ", then the serial ports control line first is connected PC with matrix, again matrix is connected with each concatenation unit serial connection), then choose by the splicing regions choice box concatenation unit 1 that needs splicing, 2, 3 ... 6, the selected change of all concatenation units that need to splice is blue.
After setting is completed, select splicing by splicing function choice box, " the monitor joined screen control system " of PC end can be with user's setting, be encoded into order data according to the coded system of appointing in advance, its instruction comprises guidance code, control word and data message, user's the order that arranges send the data to concatenation unit 1, and each concatenation unit is connected successively with the control command output interface by the control command input interface, so all can be received in the 1-6 unit again.After receiving data, each unit can conduct interviews to EEPROM by set addressing system, if the unit that unit number and PC are corresponding is consistent, the sequence number of the 1-6 unit that has namely chosen is consistent with the numbering that PC controls demonstration, carry out this unit operations, other 7-9 cell encoding is inconsistent, undo, and concrete implementation is as follows:
The AV signal that concatenation unit 7 receives in the local video input interface, do not respond the splicing instruction, the independent AV vision signal that shows in local video signal; The VGA signal that concatenation unit 8 receives in the local video input interface, do not respond the splicing instruction, the independent VGA pcs signal that shows in local video signal; The DVI signal that concatenation unit 9 receives in the local video input interface, do not respond the splicing instruction, the independent DVI digital signal that shows in local video signal.
(concatenation unit 9 is by the HDMI switching over for the DVI digital video signal that concatenation unit 1 transmits by its DVI input interface reception concatenation unit 9, realization is exported local DVI input signal by its DVI OUT), and by its DVI OUT output interface, with the DVI IN of concatenation unit 2, be connected, digital signal transmission is arrived concatenation unit 2, concatenation unit 2 is transferred to concatenation unit 3 with this digital video signal by its DVI OUT output interface again, the like, until this digital signal transmission is arrived concatenation unit 6, then concatenation unit 1, concatenation unit 2, concatenation unit 3, concatenation unit 4 and concatenation unit 5 are numbered according to the concatenation unit of self respectively, obtain oneself being positioned the position in monitor joined screen, calculate should display video signal which part after, carry out again the vision signal cutting, vision signal after cutting is carried out the full screen display of unit, tiled display that so just can DVI digital video signal is complete out, be equivalent to concatenation unit 1, concatenation unit 2, concatenation unit 3, concatenation unit 4, DVI signal in 6 pairs of concatenation units 9 of concatenation unit 5 and concatenation unit amplifies demonstration, so, monitoring effect can be better.
Certainly, if the user needs other display mode, the operation of the control software by control device can realize that equally its principle is identical, at this, just seldom repeats.
Thus, the implementation method that we can obtain the ring way system of concatenation unit of the present invention mainly comprises the following steps, as shown in Figure 5:
S1, the control command of concatenation unit receiving control device, control HDMI switch connection local video input port or ring messenger input port, obtain input signal, again according to control command, described input signal is sent to display unit after the second microprocessor processes and/or described input signal is sent to the ring messenger input interface of next concatenation unit;
S2, concatenation unit is communicated to next concatenation unit by the control command output interface with control command.
Further, described step S1 further comprises after signal adjustment unit is adjusted processing to the external vision signal that sends the HDMI switch by ring messenger input interface to and sends the second microprocessor or next concatenation unit to again.
The invention provides ring way system and its implementation of concatenation unit, described concatenation unit comprises splicing fore device and splicing back-end device, and described splicing back-end device further comprises the HDMI switch.Can realize the gating to local video signal or external vision signal, described vision signal comprises multiple format, and have very strong antijamming capability and good definition, and described control device can be controlled separately any one concatenation unit, greatly facilitates the flexibility of operation.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a concatenation unit, is characterized in that, described concatenation unit comprises the display unit for display video signal, the signal end daughter board that is used for receiving input signal, splicing fore device and splicing back-end device; Described signal end daughter board, splicing fore device and be connected back-end device and connect respectively; Described display unit connects the splicing back-end device; Described splicing rear end comprises the second microprocessor and HDMI switch, wherein:
The HDMI switch, connect described signal end daughter board, splicing fore device and the second microprocessor, be used for according to control command, one of them of the external vision signal of selective reception and local video signal is also as the information source of concatenation unit or as the signal output of the logical output of ring;
The second microprocessor, be used for receiving the signal that the HDMI switch sends, and sends after treatment display unit to;
Described signal end daughter board comprises local video signal input port, ring messenger input interface, ring messenger output interface, control command input interface, control command output interface;
Described splicing fore device comprises first microprocessor;
Wherein:
The local video signal input port, be used for receiving local video signal and outputing to first microprocessor;
Ring messenger input interface, connect the HDMI switch, is used for receiving external vision signal and outputing to the HDMI switch;
Ring messenger output interface, connect the HDMI switch, is used for the external vision signal of the logical output of conduct ring of output HDMI switch selection;
The control command input interface, be used for receiving the external control instruction and sending the HDMI switch to;
The control command output interface, be used for the control command of control device transmission is sent to next concatenation unit;
Described first microprocessor, be used for receiving local video signal, and convert local video signal to Low Voltage Differential Signal.
2. concatenation unit according to claim 1, it is characterized in that: described splicing fore device also comprises HDMI encoder and concatenation unit coding unit; Wherein:
The HDMI encoder, connect first microprocessor, is used for receiving the Low Voltage Differential Signal that first microprocessor transmits, and Low Voltage Differential Signal carried out transform coding process, and the signal after transform coding is processed is exported to the HDMI switch.
3. concatenation unit according to claim 1, it is characterized in that: described splicing back-end device also comprises signal adjustment unit, described signal adjustment unit connects described HDMI switch, adjust processing for the external vision signal that ring messenger input interface is sent to the HDMI switch, and will be through adjusting the external vision signal output of processing by the HDMI switch.
4. concatenation unit according to claim 3 is characterized in that: described signal adjustment unit is used for power and the integrality of the external vision signal that transmits according to ring messenger input interface it is recovered to reduce and shaping filter.
5. the ring way system of a concatenation unit, the concatenation unit and the control device that comprise two or more, it is characterized in that, described concatenation unit comprises display unit, signal end daughter board, splicing fore device and the splicing back-end device for display video signal; Described signal end daughter board comprises local video signal input port, ring messenger input interface, ring messenger output interface, control command input interface, control command output interface; Described splicing fore device comprises first microprocessor, HDMI encoder and concatenation unit coding unit; Described splicing rear end comprises the second microprocessor and HDMI switch; Wherein:
The local video signal input port, be used for receiving local video signal and outputing to first microprocessor;
Ring messenger input interface, connect the HDMI switch, is used for receiving external vision signal and outputing to the HDMI switch;
Ring messenger output interface, connect the HDMI switch, is used for the external vision signal of the logical output of conduct ring of output HDMI switch selection;
The control command input interface, be used for the control command of receiving control device and send the HDMI switch to;
The control command output interface, be used for the control command of control device transmission is sent to next concatenation unit;
First microprocessor, be used for receiving local video signal, and convert local video signal to low-voltage differential signal transmission to the HDMI encoder;
The HDMI encoder, connect first microprocessor, is used for receiving the Low Voltage Differential Signal that first microprocessor transmits, and Low Voltage Differential Signal carried out transform coding process, and the signal after transform coding is processed is exported to the HDMI switch;
Described HDMI switch, for the control command according to control device, one of them of the external vision signal of selective reception and local video signal also exported as the information source of concatenation unit or the signal of the logical output of conduct ring;
Described the second microprocessor, be used for receiving the signal that the HDMI switch sends, and sends after treatment display unit to;
Described control device, be used for receiving user's operation, sends corresponding control command.
6. the ring way system of concatenation unit according to claim 5, it is characterized in that: the ring messenger output interface of described concatenation unit is connected in series with the ring messenger input interface of next concatenation unit and the ring messenger output interface of all concatenation units forms and joins end to end with ring messenger input interface, is used for realizing that the ring of vision signal is logical.
7. the ring way system of concatenation unit according to claim 5, it is characterized in that: in described each concatenation unit, the control command input interface of first concatenation unit connects the control command output port of control device, the control command output interface of all the other concatenation units is connected in series with the control command input interface of next concatenation unit, is used for realizing that the ring of control command is logical.
8. the ring way system of concatenation unit according to claim 5, it is characterized in that: described splicing back-end device also comprises signal adjustment unit, described signal adjustment unit connects described HDMI switch, adjust processing for the external vision signal that ring messenger input interface is sent to the HDMI switch, and will be through adjusting the external vision signal output of processing by the HDMI switch.
9. the implementation method of the ring way system of a concatenation unit claimed in claim 5, is characterized in that, comprises the following steps:
S1, the control command of concatenation unit receiving control device, control HDMI switch connection local video input port or ring messenger input port, obtain input signal, again according to control command, described input signal is sent to display unit after the second microprocessor processes and/or described input signal is sent to the ring messenger input interface of next concatenation unit;
S2, concatenation unit is communicated to next concatenation unit by the control command output interface with control command.
10. the implementation method of the ring way system of concatenation unit according to claim 9, it is characterized in that, described step S1 further comprises after by signal adjustment unit, the external vision signal that is sent to the HDMI switch by ring messenger input interface being adjusted processing and sends the second microprocessor or next concatenation unit to again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106185963A CN102123247B (en) | 2010-12-31 | 2010-12-31 | Loop-connection system for splicing unit and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106185963A CN102123247B (en) | 2010-12-31 | 2010-12-31 | Loop-connection system for splicing unit and implementation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102123247A CN102123247A (en) | 2011-07-13 |
| CN102123247B true CN102123247B (en) | 2013-11-20 |
Family
ID=44251677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106185963A Expired - Fee Related CN102123247B (en) | 2010-12-31 | 2010-12-31 | Loop-connection system for splicing unit and implementation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102123247B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419700B (en) * | 2011-09-28 | 2014-05-21 | 中国航天科工集团第二研究院七〇六所 | Video loop-out device for computers |
| CN102514498B (en) * | 2011-11-23 | 2014-11-12 | 湖南南车时代电动汽车股份有限公司 | Identification method and device of battery management system sub-module |
| CN103607573B (en) * | 2013-11-25 | 2017-02-15 | 广东威创视讯科技股份有限公司 | video signal transmission method and device |
| CN103685983B (en) * | 2013-12-20 | 2018-11-20 | Tcl新技术（惠州）有限公司 | A kind of host computer, ring lead to splicing module, video-signal transmission method and system |
| CN104333714B (en) * | 2014-10-28 | 2018-11-02 | 广东威创视讯科技股份有限公司 | The signal switching method and system of combination |
| CN105141905B (en) * | 2015-08-14 | 2019-09-10 | Tcl新技术（惠州）有限公司 | A kind of joined screen system and its implementation |
| CN109788209B (en) * | 2018-12-08 | 2021-05-11 | 深圳中科君浩科技股份有限公司 | 4K super-clear display spliced screen |
| CN109783044A (en) * | 2019-01-23 | 2019-05-21 | 京东方科技集团股份有限公司 | Splicing display device, display server, display system and its configuration and control method |
| CN114255670B (en) * | 2021-12-17 | 2024-01-02 | 杭州海康威视数字技术股份有限公司 | LED display screen and spliced display screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483260A (en) * | 1993-09-10 | 1996-01-09 | Dell Usa, L.P. | Method and apparatus for simplified video monitor control |
| WO2006016910A1 (en) * | 2004-07-07 | 2006-02-16 | Infocus Corporation | Display device graphics interface |
| CN201360294Y (en) * | 2008-11-07 | 2009-12-09 | 深圳市晶日盛科技有限公司 | Multifunctional image controller |
| CN201440263U (en) * | 2009-07-15 | 2010-04-21 | 广东威创视讯科技股份有限公司 | Wireless control system for spliced display wall |
| CN101819755A (en) * | 2009-02-27 | 2010-09-01 | 深圳Tcl新技术有限公司 | Monitor joined screen with function of displaying multi-channel video signals and realization method thereof |
-
2010
- 2010-12-31 CN CN2010106185963A patent/CN102123247B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483260A (en) * | 1993-09-10 | 1996-01-09 | Dell Usa, L.P. | Method and apparatus for simplified video monitor control |
| WO2006016910A1 (en) * | 2004-07-07 | 2006-02-16 | Infocus Corporation | Display device graphics interface |
| CN201360294Y (en) * | 2008-11-07 | 2009-12-09 | 深圳市晶日盛科技有限公司 | Multifunctional image controller |
| CN101819755A (en) * | 2009-02-27 | 2010-09-01 | 深圳Tcl新技术有限公司 | Monitor joined screen with function of displaying multi-channel video signals and realization method thereof |
| CN201440263U (en) * | 2009-07-15 | 2010-04-21 | 广东威创视讯科技股份有限公司 | Wireless control system for spliced display wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102123247A (en) | 2011-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102123247B (en) | Loop-connection system for splicing unit and implementation method thereof | |
| CN101819755B (en) | Monitor joined screen with function of displaying multi-channel video signals and realization method thereof | |
| CN102123248B (en) | Splicing wall for monitors and splicing unit thereof | |
| RU2216879C2 (en) | Multiple-source video signal distribution concentrator | |
| US5262865A (en) | Virtual control apparatus for automating video editing stations | |
| CN102103826A (en) | Light emitting diode (LED) display screen splicing control system and LED display screen | |
| CN207399375U (en) | A kind of image mosaic control device | |
| US10509614B2 (en) | Video display apparatus-apparatus communication | |
| CN205901910U (en) | HDMI information source demultiplexer | |
| CN104092969A (en) | Television wall splicing system and method based on Display Port | |
| CN211207311U (en) | One-screen multi-display technology based on display | |
| CN105120184A (en) | High-definition video seamless matrix based on FPGA (field programmable gate array) | |
| CN201607923U (en) | LED video processing and amplifying integration control device | |
| CN101218558A (en) | Codec control | |
| CN103065574A (en) | Display driving device | |
| US20220021838A1 (en) | Video Display System | |
| US11343466B2 (en) | Video signal conversion device | |
| CN201600877U (en) | Signal amplifier and cascade video mosaicing amplifying device | |
| CN106878650B (en) | DVI to VGA video conversion device and method thereof | |
| CN201623792U (en) | LED display screen audio-video control device and LED display screen | |
| CN103685983A (en) | Host computer, loop splicing module and video signal transmitting method and system | |
| CN216700149U (en) | Image output control system based on android system | |
| US20020158879A1 (en) | Graphic output unit and a graphic output system | |
| CN102270421B (en) | System for joining display units and realizing method thereof | |
| CN112347016A (en) | Dual-video input switching device and control method of tablet computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20201231 |