CN105335126B - A kind of mosaic screen - Google Patents
A kind of mosaic screen Download PDFInfo
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- CN105335126B CN105335126B CN201510875413.9A CN201510875413A CN105335126B CN 105335126 B CN105335126 B CN 105335126B CN 201510875413 A CN201510875413 A CN 201510875413A CN 105335126 B CN105335126 B CN 105335126B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention belongs to show equipment technical field, and disclose a kind of mosaic screen.In the present invention, mosaic screen includes host and N number of slave, and N is the positive integer greater than 1, and N number of slave has small size display screen curtain.Host controls N number of slave according to user's operation and works, when Host Detection to user's operation is to press host number selection key, host generates number selection information, and the slave accordingly numbered is selected according to number selection information, after the slave that Selection of chiller is accordingly numbered, the slave that the feature operation information control that host is inputted according to user is accordingly numbered executes switching on and shutting down operation, display operation or parameter adjustment operation, so that in the occasion for needing oversize to show equipment, the mosaic screen as made of multiple slave cascades with small size display screen curtain provided using only invention, it does not need to buy new oversize and shows equipment, it reduces costs, solving the problems, such as existing large scale display screen in turn, there are at high cost.
Description
Technical field
The invention belongs to show equipment technical field more particularly to a kind of mosaic screen.
Background technique
With the development of display technology, large scale, oversize show equipment more and more more and more quilts
It is applied to industry, in business and people's lives, and the production of large scale display screen at present and the production cost is very high.To sum up institute
It states, existing large scale display screen there is a problem of at high cost.
Summary of the invention
It is an object of the invention to mosaic screens, it is intended to solve the problems, such as that there are at high cost for existing large scale display screen.
The invention is realized in this way a kind of mosaic screen, including host and N number of slave, the host and N number of slave
Parallel connection, N are the positive integer greater than 1, and N number of slave has small size display screen curtain, and each slave in N number of slave is equal
It is numbered with one；
The host works according to user's operation control N number of slave, when the Host Detection to the user's operation
When to press host number selection key, the host generates number selection information, and selects information to select phase according to the number
The slave that should be numbered, after the slave accordingly numbered described in the Selection of chiller, function that the host is inputted according to user
Operation information controls the slave accordingly numbered and executes switching on and shutting down operation, display operation or parameter adjustment operation.
In the present invention, mosaic screen includes host and N number of slave, and N is the positive integer greater than 1, and N number of slave has small size
Show that screen, each slave in N number of slave all have a number.Host controls N number of slave according to user's operation and works, when
Host Detection is when pressing host number selection key to user's operation, and host generates number selection information, and is selected according to number
Information selects the slave accordingly numbered, and after the slave that Selection of chiller is accordingly numbered, host is grasped according to the function that user is inputted
Make the slave that information control is accordingly numbered and execute switching on and shutting down operation, display operation or parameter adjustment operation, so that super in needs
The occasion of large-sized display devices, using only invention offer as made of multiple slaves cascades with small size display screen curtain
Mosaic screen does not need to buy new oversize and shows equipment, reduces costs, and then solve existing large scale and show
Screen there is a problem of at high cost.
Detailed description of the invention
Fig. 1 is the modular structure schematic diagram of mosaic screen provided by a real-time example of the invention；
Fig. 2 is another modular structure schematic diagram of mosaic screen provided by one embodiment of the invention；
Fig. 3 is the another modular structure schematic diagram of mosaic screen provided by one embodiment of the invention；
Fig. 4 is the host circuit structural schematic diagram of mosaic screen provided by one embodiment of the invention；
Fig. 5 is the slave electrical block diagram of mosaic screen provided by one embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Realization of the invention is described in detail below in conjunction with specific attached drawing:
Fig. 1 shows the modular structure of mosaic screen provided by one embodiment of the invention, for ease of description, illustrates only
Part related to the embodiment of the present invention, details are as follows:
Mosaic screen provided by the embodiment of the present invention includes host 10 and N number of slave 20, and host 10 and N number of slave 20 are simultaneously
Connection.Wherein, N is the positive integer greater than 1, and N number of slave 20 has small size display screen curtain, each of N number of slave 20 slave
20 all have a number.
Further, host 10 controls N number of slave 20 according to user's operation and works, and when host 10 detects that user grasps
When as the number selection key for pressing host 10, host 10 generates number selection information, and selects phase according to number selection information
The slave 20 that should be numbered.After host 10 selects the slave 20 accordingly numbered, feature operation that host 10 is inputted according to user
The slave 20 that information control is accordingly numbered executes corresponding switching on and shutting down operation, display operation or parameter adjustment operation.
Specifically, host 10 generates number selection when host 10 detects that user's operation is all keys for pressing host 10
Information, and all slaves 20 are selected according to number selection information, after host 10 selects all slaves 20, host 10 is according to user
The feature operation information inputted controls all slaves 20 and executes corresponding switching on and shutting down operation, display operation or parameter adjustment behaviour
Make.
Further, when host 10 detects that user's operation is to press the function key of host 10, host 10 is according to user
Operation generates original state and detects signal, and detects whether the state of the N number of slave 20 of signal detection is just according to the original state
Beginning state, if the state of N number of slave 20 is original state, host 10 control N number of slave 20 execute corresponding switching on and shutting down operation,
Display operation or parameter adjustment operation；When host 10 detects that the state of N number of slave 20 is not original state, then host controls
Selected slave 20 executes corresponding switching on and shutting down operation, display operation or parameter adjustment operation before last time power-off.It needs to illustrate
, in the present embodiment, original state refers to that the coding of N number of slave 20 is factory state, and all the same；On in addition,
Selected slave 20 refers to the slave 20 that host 10 selects in the upper primary operation of current operation before secondary power-off.
Specifically, host 10 is according to user when host 10 detects that user's operation is to press the power-on operation of host 10
Operation generates original state and detects signal, and detects whether the state of the N number of slave 20 of signal detection is just according to the original state
Beginning state, it is assumed that the original state is whether the initial code of N number of slave 20 is 1, if the initial code of N number of slave is 1,
Host 10 controls N number of slave 20 and is switched on；If the initial code of N number of slave 20 is not all 1, host 10 controls institute before last time power-off
The slave 20 of choosing is switched on.
Further, a slave 20 or more when user's operation is to press the function key of slave 20, in N number of slave 20
A 20 exports coding solicited message of slave is to host 10, and host 10 is according to the coding solicited message received in N number of slave 20
A slave 20 or multiple slaves 20 recompiled, and host 10 in N number of slave 20 a slave 20 or
After the multiple slaves 20 of person recompile, the selection of number selection operation that host 10 is inputted according to user accordingly number from
Machine 20, and after host 10 selects the slave 20 accordingly numbered, according to the corresponding number of feature operation information control of user's input
Slave 20 execute switching on and shutting down operation, display operation or parameter adjustment operation.
In the present embodiment, host 10 selects the host 20 accordingly numbered according to user's operation, and in user institute input work
The host 20 that control is accordingly numbered when energy operation information executes corresponding switching on and shutting down operation, display operation or parameter adjustment behaviour
Make, so that can be cascaded the slave 20 of N number of small size display screen curtain to realize big ruler in the occasion for needing to beat size display screen
Very little display, reduces costs, and then solves the problems, such as that existing large-sized display devices are at high cost.
Fig. 2 shows another modular structures of the mosaic screen of one embodiment of the invention offer only to show for ease of description
Part related to the present embodiment, details are as follows:
Mosaic screen provided by the present embodiment is realized on the basis of mosaic screen shown in Fig. 1, wherein host 10 wraps
Include master controller 100, switching circuit 101 and master interface circuit 102, each slave 20 includes from controller 200, first from connecing
Mouthful circuit 201 and second is from interface circuit 202.
As an embodiment of the present invention, switching circuit 101 is connect with master controller 100, master controller 100 and main interface electricity
Road 102 connect, first connect with second from interface circuit 202 from interface circuit 201, first from interface circuit 201 and second from
Interface circuit 202 is connect with from controller 200, and the first of master interface circuit 102 and the 1st slave 20 is from interface circuit 201
And second connect from interface circuit 202, the 1st slave 20 second from the first of interface circuit 202 and the 2nd slave 20 from
Interface circuit 201 and second connected from interface circuit 202, the 2nd slave 20 second from interface circuit 202 and the 3rd from
The first of machine 20 connects from interface circuit 201 and second from interface circuit 202, and so on, the N-1 slave 20
Second connect from interface circuit 201 and second from interface circuit 202 from interface circuit 202 with the first of n-th slave.
Further, switching circuit 101 exports corresponding switching information to master controller 100, master control according to user's operation
Device 100 processed generates corresponding encoded information according to switching information, and when the encoded information that master controller 100 generates is number selection
When information, number selection information is sent to the first of the 1st slave 20 from connecing by master interface circuit 102 by master controller 100
From interface circuit 202, the second of the 1st slave 20 sends number selection information from interface circuit 202 mouth circuit 201 and second
To the 2nd slave 20 first from interface circuit 201 and second from interface circuit 202, and so on, the N-1 slave 20
Number selection information is sent to the first of n-th slave from interface circuit 201 and second from interface from interface circuit 202 by second
Number selection information is sent to the slave controller of each slave 20 from interface circuit 201 by circuit 202, the first of each slave 20
200, the slave controller 200 of each slave 20 to number selection information identified and confirm number selection information whether with its
The number of affiliated slave 20 is corresponding, slave 20 corresponding with number selection information for number, from controller 200 according to master control
The control of feature operation information transmitted by device 100 processed number slave 20 corresponding with number selection information executes corresponding switching on and shutting down
Operation, display operation or parameter adjustment operation.
Further, when the encoded information that master controller 100 generates is feature operation information, master controller 100 detects N
Whether a slave 20 is original state, if so, master controller 200 is sent feature operation information by master interface circuit 102
To each slave 20 in N number of slave 20 first from interface circuit 201 or the second from interface circuit 202, each slave 20
First is sent to feature operation information from interface circuit 201 or the second from interface circuit 202 the slave controller of each slave 20
200, so that controlling each slave 20 from controller 200 executes switching on and shutting down operation, display operation or parameter adjustment operation,；If
No, then feature operation information is sent to the preceding selected slave 20 of last time power-off by master interface circuit 102 by master controller 100
First from interface circuit 201 or the second from interface circuit 202, and the first of selected slave 20 is from interface circuit before last time power-off
201 or second from interface circuit 202 feature operation information is sent to last time power-off before selected slave 20 slave controller
200, so that controlling the preceding selected slave 20 of last time power-off from controller 200 executes corresponding row switching on and shutting down operation, display operation
Or parameter adjustment operation.
It should be noted that in the present embodiment, the second of each slave 20 is used as expansion interface electricity from interface circuit 202
Road, when need the number of current slave 20 is extended when, then the second of each slave 20 from interface circuit 202 can with it is another
The slave interface circuit connection of one slave 20；Further, since master controller 100 is to 20 sending function operation information of slave and sends
The process of number selection information is identical, specifically describes the transmission process that can refer to number selection information, therefore details are not described herein again.
As an embodiment of the present invention, Fig. 3 shows the another modular structure of the mosaic screen of one embodiment of the invention offer.
Wherein, switching circuit 101 is connect with master controller 100, and master controller 100 is connect with master interface circuit 102, and first is electric from interface
Road 201 is connect with second from interface circuit 202, first from interface circuit 201 and second from interface circuit 202 and from controller
The first of 200 connections, master interface circuit 102 and the 1st slave 20 connects from interface circuit 201 and second from interface circuit 202
It connects, the first of the 1st slave 20 is from the second of interface circuit 201 and the 2nd slave 20 from interface circuit 202 and first from connecing
Mouthful circuit 201 connects, and the first of the 2nd slave 20 is from the second of interface circuit 201 and the 3rd slave 20 from interface circuit 202
And first connect from interface circuit 201, and so on, the N-1 slave 20 first from interface circuit 201 and n-th from
The second of machine 20 connects from interface circuit 202 and first from interface circuit 201.
Switching circuit 101 exports corresponding switching information to master controller 100 according to user's operation, and master controller 100
Corresponding encoded information is generated according to switching information, and when the encoded information that master controller 100 generates is number selection information, it is main
Controller 100 will number select information to be sent to the 1st slave 20 first from interface circuit 201 by master interface circuit 102
With second from interface circuit 202, the 1st slave 20 first from interface circuit 201 will number selection information be sent to the 2nd from
The first of machine 20 from interface circuit 201 and second from interface circuit 202, and so on, the first of the N-1 slave 20 is from interface
Number selection information is sent to the first of n-th slave 20 from interface circuit 201 and second from interface circuit 202 by circuit 201,
Number selection information is sent to the slave controller 200 of each slave 20 from interface circuit 202 by the second of each slave 20, each
The slave controller 200 of slave 20 to number selection information identified and confirm number selection information whether with its affiliated slave
20 number is corresponding, slave 20 corresponding with number selection information for number, from controller 200 according to master controller 100
Transmitted feature operation information control number slave 20 corresponding with number selection information executes corresponding switching on and shutting down and operates, is aobvious
Show operation or parameter adjustment operation.
Further, when the encoded information that master controller 100 generates is feature operation information, master controller 100 detects N
Whether a slave 20 is original state, if so, master controller 200 is sent feature operation information by master interface circuit 102
To each slave 20 in N number of slave 20 first from interface circuit 201 or the second from interface circuit 202, each slave 20
First is sent to feature operation information from interface circuit 201 or the second from interface circuit 202 the slave controller of each slave 20
200, so that controlling each slave 20 from controller 200 executes switching on and shutting down operation, display operation or parameter adjustment operation,；If
No, then feature operation information is sent to the preceding selected slave 20 of last time power-off by master interface circuit 102 by master controller 100
First from interface circuit 201 or the second from interface circuit 202, and the first of selected slave 20 is from interface circuit before last time power-off
201 or second from interface circuit 202 feature operation information is sent to last time power-off before selected slave 20 slave controller
200, so that controlling the preceding selected slave 20 of last time power-off from controller 200 executes corresponding row switching on and shutting down operation, display operation
Or parameter adjustment operation.
It should be noted that in the present embodiment, the first of each slave 20 is used as expansion interface electricity from interface circuit 201
Road, when need the number of current slave 20 is extended when, then the first of each slave 20 from interface circuit 201 can with it is another
The slave interface circuit connection of one slave 20；Further, since master controller 100 is to 20 sending function operation information of slave and sends
The process of number selection information is identical, specifically describes the transmission process that can refer to number selection information, therefore details are not described herein again.
In the present embodiment, mosaic screen includes host 10 and N number of slave 20, and host 10 can be in parallel with N number of slave 20, slave
Expansion interface is provided on 20, and the master controller 100 of host 10 is in the switching information for receiving the output of switching circuit 101
When, corresponding encoded information is generated according to the switching signal and is sent to the encoded signal by master interface circuit 102 each
200 identiflication number of slave controller of the slave controller 200 of slave 20, each slave 20 selects information, may recognize that with selecting
The slave 20 of number selection information accordingly numbered, after selecting the slave 20 accordingly numbered, the slave 20 accordingly numbered
The slave 20 accordingly numbered from the control of the feature operation information according to transmitted by master controller 100 of controller 200 executes switching on and shutting down
Operation, display operation or parameter adjustment operation.
Therefore, in the present embodiment, mosaic screen can be controlled by host 10 part in N number of slave or N number of slave from
Machine 20 executes switching on and shutting down operation, display operation or parameter adjustment operation, and the number of slave 20 can need certainly according to user
Row setting shows equipment without oversize, solves the problems, such as that existing oversize shows that equipment cost is high；This
Outside, host 10 can only be connect with one of slave 20, and slave 20 is reserved from interface circuit, so that realizing between slave 20
Extension reduces the line between host 10 and slave 20 without being all wired to host 10, easy to operate and further decrease
Cost.
Fig. 4 shows the circuit structure of mosaic screen host provided by one embodiment of the invention, for ease of description, only shows
Go out part related to the embodiment of the present invention, details are as follows:
In the present embodiment, master controller 100 be single-chip microcontroller, arm processor or other have data-handling capacity
Programmable logic device.
As an embodiment of the present invention, switching circuit 101 includes at least one switching group 101a, optionally, in this implementation
In example, the number of switching group 101a is three.Wherein, one of the electricity output end of each switching group 101a and master controller 100
Column port connects one to one, multiple electrical inputs of each switching group 101a receive supply voltage, and each switching group
Multiple electrical inputs of 101a and multiple row ports of master controller 100 connect one to one.
Further, each switching group 101a includes multiple switch element, each switch element in multiple switch element
First end connect the electricity output end to form switching group 101a altogether, the second end of each switch element in multiple switch element with open
Group 101a mono- electrical input in pass corresponds.Optionally, in the present embodiment, each switching group 101a includes 3 switch members
Part.That is, first switching group 101a includes first switching element K1, second switch element K2 and third switch element
K3, second switching group 101a include the 4th switch element K4, the 5th switch element K5 and the 6th switch element K6, third
Switching group 101a includes the 7th switch element K7, the 8th switch element K8 and the 9th switch element K9.
Specifically, the first switching element K1 of first switching group 101a, second switch element K2 and third switch member
The first end of part K3 connects the electricity output end to form first switching group 101a altogether, the electricity output end of first switching group 101a and master
The first row port GPIO4 connection of controller 100, and first switching element K1, second switch element K2 and third switch member
The second end of part K3 respectively with the first row port GPIO1 of master controller 100, the second row port GPIO2 and the third line port
GPIO3 connects one to one；The 4th switch element K4 of second switching group 101a, the 5th switch element K5 and the 6th switch
The first end of element K6 connects the electricity output end to form second switching group 101a altogether, the electricity output end of second switching group 101a with
The secondary series port GPIO5 connection of master controller 100, and the 4th switch element K4, the 5th switch element K5 and the 6th switch
The second end of element K6 respectively with the first row port GPIO1 of master controller 100, the second row port GPIO2 and the third line end
Mouth GPIO3 connects one to one；The 7th switch element K7, the 8th switch element K8 and the 9th of third switching group 101a is opened
The first end for closing element K9 connects the electricity output end to form third switching group 101a, the electricity output end of third switching group 101a altogether
It is connect with the third column port GPIO6 of master controller 100, and the 7th switch element K7, the 8th switch element K8 and the 9th are opened
Close element K9 second end respectively with the first row port GPIO1 of master controller 100, the second row port GPIO2 and the third line
Port GPIO3 connects one to one.
It should be noted that in the present embodiment, when the number more than three of switching group 101a, the switching group that has more
The first end of three switch elements in 101a connects to form electricity output end altogether, and the electricity output end accordingly connects master controller 100
The 4th column port, the 5th column port etc., and the second end of three switch elements in each switching group 101a having more is distinguished
It corresponds and connects with the first row port GPIO1, the second row port GPIO2 and the third line port GPIO3 of master controller 100
It connects；In addition, it should be noted that, when the number more than three of the switch element in switching group 101a, the switch element that has more
First end and the first ends of other switch elements connect to form electricity output end altogether, and column port corresponding with master controller 100 company
The second end for the switch element for connecing, and having more can connect with one-to-one correspondence such as the fourth line port of master controller 100, fifth line ports
It connects；Further, the multiple switch element in each switching group 101a can realize singly-bound function control, can also be with multiple switch member
Multikey function control is realized in part combination, and multikey function between group also may be implemented in the multiple switch element in each switching group 101a
Control.
Further, each switching group 101a further includes filter capacitor and filter resistance, the first end of filter capacitor and
The first end of filter resistance is connect with the respective column port of controller 100, the second end ground connection of filter capacitor, filter resistance
Second end is connect with the first end of multiple switch element.Specifically, first switching group 101a include the first filter capacitor C1 with
First filter resistance R1, second switching group 101a includes the second filter capacitor C2 and the second filter resistance R2, third switch
Group 101a includes third filter capacitor C3 and third filter resistance R3.The first end and the first filtered electrical of first filter capacitor C1
The first end of resistance R1 is connect with the first row port GPIO4 of master controller 100, the second end ground connection of the first filter capacitor C1,
The first of the second end of first filter resistance R1 and first switching element K1, second switch element K2 and third switch element K3
End connection；The first end of second filter capacitor C2 and the first end of the second filter resistance R2 with master controller 100 second
Arrange port GPIO5 connection, the second end ground connection of the second filter capacitor C2, the second end of the second filter resistance R2 and the 4th switch member
The first end of part K4, the 5th switch element K5 and the 6th switch element K6 connect；The first end of third filter capacitor C3 and
The first end of third filter resistance R3 is connect with the third column port GPIO6 of master controller 100, and the of third filter capacitor C3
Two ends ground connection, the second end and the 7th switch element K7, the 8th switch element K8 of third filter resistance R3 and the 9th switch member
The first end of part K9 connects.It should be noted that each switching group 101a includes a filter capacitor and a filter resistance.At this
In embodiment, filter capacitor and filter resistance can eliminate outer signals to interference caused by switch element, so that switch
Circuit 101 exports steadily switching signal.
Further, each switching group 101a further includes a pull down resistor, the first end and multiple switch of the pull down resistor
The first end of element connects, the second end ground connection of the pull down resistor.Specifically, first switching group 101a includes pull down resistor
R4, second switching group 101a include pull down resistor R5, and third switching group 101a includes pull down resistor R6, pull down resistor R4's
First end is connect with the first end of third switch element K3, the second end ground connection of pull down resistor R4；The first end of pull down resistor R5
It is connect with the first end of the 6th switch element K6, the second end ground connection of pull down resistor R5；The first end of lower resistance R6 is opened with the 9th
Close the first end connection of element K9, the second end ground connection of pull down resistor R6.In the present embodiment, pull down resistor R4, R5 and R6
It prevents the switch element in corresponding switching group 101a by excessive pressure damages respectively, and then ensures the normal work of switching circuit 101
Make.
As an embodiment of the present invention, switching circuit 101 further includes resistance R7, R8 and R9, resistance R7, R8 and R9's
First end receives supply voltage, the second end of resistance R7, R8 and R9 respectively with the first row port of master controller 100
GPIO1, the second row port GPIO2 and the GPIO3 connection of the third line port.
As an embodiment of the present invention, master interface circuit 102 is main USB connector, the power pins of the main USB connector
1 connect with external power supply, the first data pin of the first data pin 2 of main USB connector and master controller 100, first from
It interface circuit 201 and second is connected from interface circuit 202, the second data pin 3 and the master controller 100 of main USB connector
The second data pin, first connected from interface circuit 201 and second from interface circuit 202, the information of main USB connector draws
Foot is grounded with grounding pin.
Fig. 5 shows the circuit structure of mosaic screen slave provided by one embodiment of the invention, for ease of description, only shows
Go out part related to the embodiment of the present invention, details are as follows:
In the present embodiment, from controller 200 be single-chip microcontroller, arm processor or other have data-handling capacity
Programmable logic device.
As an embodiment of the present invention, first is first from USB connector from interface circuit 201, and second from interface circuit
202 for second from USB connector, first from the power pins 1 of USB connector with second from the power pins 1 of USB connector
It is connect with external power supply and from the power pins of controller 200, first from the first data pin 2 and second of USB connector
Drawing the first data pin 2 and connect from the first data pin of controller 200 from USB connector, first from USB connector
Second data pin 3 and second connects from the second data pin 3 of USB connector and from the second data pin of controller 200
It connects, first from the information pin of USB connector and grounding pin and second from the information pin and grounding pin of USB connector
It is grounded.
As an embodiment of the present invention, slave 20 further includes diode D1, first capacitor C4 and the second capacitor C5.Two
The anode of pole pipe D1 is connect with external power supply, and the cathode of diode D1 and first is from the power pins 1 of USB connector and from control
The power pins of device 200 processed connect, and the first end of the first end of first capacitor C4 and the second capacitor C5 are with diode D1's
Cathode connection, the second end of first capacitor C4 are grounded with the second of the second capacitor C5.In the present embodiment, diode D1 can prevent
Only first is excessive by transient voltage from interface circuit 202 and be damaged from interface circuit 201 and second.
As an embodiment of the present invention, slave 20 further includes resistance R10, resistance R11, resistance 12 and resistance 13, resistance
The first end of R11 is with first from the first data pin 2 of interface circuit 201 and second from the first data of interface circuit 202
Pin 2 connects, and the second end of resistance R11 connect with the first end of resistance R10, the second end of resistance R10 and from controller 200
The connection of first data pin, the first end of resistance R13 with first from the second data pin 3 of interface circuit 201 and second from
Second data pin 3 of interface circuit 202 connects, and the second end of resistance R13 is connect with the first end of resistance R12, resistance R12's
Second end is connect with the second data pin from controller 200.
As an embodiment of the present invention, USB connecting line is used between host 10 and slave 20, between slave 20 and slave 20
Connection, so that the wiring relationship between host 10 and slave 20, between slave 20 and slave 20 is simple, it is easy to operate, and slave
It can use USB connecting line between 20 and slave 20 to be extended, the number of slave 20 can be increased as needed, and then realize benefit
Show that equipment shows required picture with the oversize of low cost.
Below with the particular circuit configurations of host 10 shown in Fig. 4 and the particular circuit configurations of slave shown in fig. 5 20
For, specific discussion is done to the course of work of mosaic screen provided in an embodiment of the present invention, details are as follows:
When user presses the key of host 10, switching circuit 101 exports corresponding switching information depending on the user's operation
To master controller 100, master controller 100 generates corresponding encoded information according to switching information.Wherein, which is master control
Device 100 processed detects its corresponding line port and the/variation that is occurred of column port voltage.For example, when user presses host 10
When key, if master controller 100 detects that the voltage of the first row port GPIO1 and first row port GPIO4 change,
Determine key that user presses it is corresponding be host 10 switching circuit 101 in first switching element K1, and master controller
100 generate phase according to the voltage of the first row port GPIO1 where first switching element K1 and the voltage of first row port GPIO4
The encoded information answered.
Further, master controller 100 determines that the encoded information generated belongs to number selection information or feature operation letter
Breath.When master controller 100 determines that the encoded information generated selects information for number, master controller 100 is drawn by the first data
Number selection information is sent to the first data pin 2 of main USB connector by foot, and main USB connector is drawn by the first data
Foot 2 will number select information to be sent to the 1st slave first and connect from the first data pin 2 of USB connector and the 2nd USB
Connect the first data pin 2 of device.If the first of the 1st slave 20 selects the number from the first data pin 2 of USB connector
Information is sent to the data receiver pin of the slave controller 200 of the 1st slave 20, then the second of the 1st slave 20 is from USB connection
Number selection information is sent to the first of the 2nd slave 20 the first data from USB connector by the first data pin 2 of device
Pin 2 and second from the first data pin 2 of USB connector, and so on, the second of the N-1 slave 20 is from USB connector
The first data pin 2 number selection information is sent to the first of n-th slave the first data pin 2 from USB connector
With second from the first data pin 2 of USB connector, the first of each slave 20 will from the first data pin 2 of USB connector
Number selection information is sent to the data receiver pin of the slave controller 200 of each slave 20, the slave controller of each slave 20
The number selection information that 200 identifications receive, to select the slave 20 accordingly numbered that may recognize that number selection information,
After selecting the slave 20 accordingly numbered, the slave controller 200 for the slave 20 accordingly numbered is according to transmitted by master controller 100
The slave 20 that the control of feature operation information is accordingly numbered executes switching on and shutting down operation, display operation or parameter adjustment operation.
If number selection information is sent to the from the first data pin 2 of USB connector by the second of the 1st slave 20
The data receiver pin of the slave controller 200 of 1 slave 20, then first data of the first of the 1st slave 20 from USB connector
Number selection information is sent to the second of the 2nd slave 20 the first data pin 2 and first from USB connector by pin 2
From the first data pin 2 of USB connector, and so on, the first of the N-1 slave 20 is from the first data of USB connector
Number selection information is sent to the first of n-th slave from the first data pin 2 of USB connector and second from USB by pin 2
First data pin 2 of connector, the second of each slave 20 believe number selection from the first data pin 2 of USB connector
Breath is sent to the data receiver pin of the slave controller 200 of each slave 20, and the slave controller 200 of each slave 20, which identifies, to be received
The number selection information arrived is corresponding selecting to select the slave 20 accordingly numbered that may recognize that number selection information
After the slave 20 of number, the feature operation according to transmitted by master controller 100 of slave controller 200 for the slave 20 accordingly numbered is believed
The slave 20 that breath control is accordingly numbered executes switching on and shutting down operation, display operation or parameter adjustment operation.
Further, when master controller 100 determines feature operation information of the encoded information generated for host 10, host
10, which generate original state according to user's operation, detects signal, and the shape of the N number of slave 20 of signal detection is detected according to the original state
Whether state is original state, if the state of N number of slave 20 is original state, host 10 controls N number of slave 20 and executes accordingly
Switching on and shutting down operation, display operation or parameter adjustment operation；When host 10 detects that the state of N number of slave 20 is not initial shape
State, then slave 20 selected before host control last time power-off executes corresponding switching on and shutting down operation, display operation or parameter adjustment
Operation.It should be noted that in the present embodiment, master controller 100 is sent feature operation information to by main USB connector
The detailed process of N number of slave 20 and above-mentioned master controller 100 will be numbered by main USB connector select information be sent to it is N number of from
The process of machine 20 is identical, and details are not described herein again.
In addition, second data of the slave controller 200 of slave 20 are drawn when user's operation is to press the function key of slave 20
Foot exports coding solicited message, and by first from the second data pin 3 or the second of USB connector from USB connector the
Two data pins 3 are sent to the second data pin 3 of the main USB connector of host 10, the second data pin of main USB connector
3 are sent to the coding solicited message the second data pin of master controller 100, and the master controller 100 of host 10 is according to reception
To coding solicited message the slave 20 that encodes of needs is recompiled, and after being recompiled, 10, host
The number selection operation that is inputted according to user selects the slave 20 accordingly numbered, and selects in host 10 slave 20 accordingly numbered
Afterwards, according to the slave 20 accordingly numbered of feature operation information control of user's input execute switching on and shutting down operation, display operation or
Parameter adjustment operation.
In the present invention, mosaic screen includes host 10 and N number of slave 20, and N is the positive integer greater than 1, and N number of slave has small
Sized display screen.Host 10 controls N number of slave 20 according to user's operation and works, when host 10 detects that user's operation is to press
When 10 number selection key of host, host 10 generate number selection information, and according to number selection information selection accordingly number from
Machine 20, after host 10 selects the slave 20 accordingly numbered, host 10 controls phase according to the feature operation information that user is inputted
The slave 20 that should be numbered executes switching on and shutting down operation, display operation or parameter adjustment operation, so that needing oversize to show
The occasion of equipment, using only invention provide as it is multiple with small size display screen curtain slaves 20 cascades made of mosaic screen be
Can, do not need to buy new oversize and show equipment, reduce costs, and then solve existing large scale display screen exist at
This high problem.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of mosaic screen, which is characterized in that the mosaic screen includes:
Host and N number of slave, the host is in parallel with N number of slave, and N is the positive integer greater than 1, and N number of slave has
Small size display screen curtain, each slave in N number of slave all have a number；
The host includes switching circuit, master controller and master interface circuit, and the switching circuit and the master controller connect
It connects, the master controller is connect with the master interface circuit；
The host works according to the user's operation control N number of slave, when the Host Detection to the user's operation for by
When lower host number selection key, the host generates number selection information, and selects information selection is corresponding to compile according to the number
Number slave, after the slave accordingly numbered described in the Selection of chiller, feature operation that the host is inputted according to user
Information controls the slave accordingly numbered and executes corresponding switching on and shutting down operation, display operation or parameter adjustment operation；
When the Host Detection to the user's operation is to press host function key, N number of slave described in the Host Detection is
No is original state, if so, control N number of slave executes corresponding switching on and shutting down operation, display operation or parameter adjustment
Operation, if it is not, slave selected before then controlling last time power-off executes corresponding switching on and shutting down operation, display operation or parameter adjustment
Operation.
2. mosaic screen according to claim 1, which is characterized in that when the user's operation is to press slave function key,
One or more slave exports coding solicited messages in N number of slave are to the host, and the host is according to the coding
Solicited message recompiles one or more slaves in N number of slave, and in the host to N number of slave
In one or more slaves recompiled after, the number selection operation that the host is inputted according to the user selects
The slave accordingly numbered, and after the slave accordingly numbered described in the Selection of chiller, believed according to the feature operation of user's input
The breath control slave accordingly numbered executes corresponding switching on and shutting down operation, display operation or parameter adjustment operation.
3. mosaic screen according to claim 1, which is characterized in that each slave in N number of slave include first from
Interface circuit, second are from interface circuit and from controller；
Described first connect with described second from interface circuit from interface circuit, described first from interface circuit with described second from
Interface circuit is connect with described from controller, and the first of the master interface circuit and the 1st slave is from interface circuit and
Two connect from interface circuit, the second of the 1st slave from the first of interface circuit and the 2nd slave from interface circuit and
Second connects from interface circuit, the 2nd slave second from the first of interface circuit and the 3rd slave from interface circuit with
And second connect from interface circuit, and so on, the second from the of interface circuit and n-th slave of the N-1 slave
One connects from interface circuit and second from interface circuit；
The switching circuit exports corresponding switching information to the master controller, the master controller according to the user's operation
Corresponding encoded information is generated according to the switching information, and when the encoded information that the master controller generates is number selection letter
When breath, the number selection information is sent to the of the 1st slave by the master interface circuit by the master controller
One from interface circuit and second from interface circuit, and the number is selected information from interface circuit by the second of the 1st slave
The first of the 2nd slave is sent to from interface circuit and second from interface circuit, and so on, the N-1 slave
Second from interface circuit by the number selection information be sent to the first of the n-th slave from interface circuit and second from
Interface circuit, each slave first from interface circuit by it is described number selection information be sent to each slave from
Controller, the slave controller of each slave identify number selection information and confirm the number selection letter
Cease whether corresponding with the number of its affiliated slave, slave corresponding with number selection information for number, from controller
According to the control of feature operation information transmitted by master controller number slave corresponding with number selection information
Execute corresponding switching on and shutting down operation, display operation or parameter adjustment operation.
4. mosaic screen according to claim 1, which is characterized in that the host include switching circuit, master controller and
Master interface circuit, each slave in N number of slave include first from interface circuit, second from interface circuit and from control
Device；
The switching circuit is connect with the master controller, and the master controller is connected according to the master interface circuit, and described
One connect with described second from interface circuit from interface circuit, and described first is equal from interface circuit with described second from interface circuit
It is connect with described from controller, the first of the master interface circuit and the 1st slave is from interface circuit and second from interface electricity
Road connection, the first of the 1st slave is from the second of interface circuit and the 2nd slave from interface circuit and first from interface
Circuit connection, the first of the 2nd slave is from the second of interface circuit and the 3rd slave from interface circuit and first from connecing
Mouthful circuit connection, and so on, the N-1 slave first from the second of interface circuit and n-th slave from interface circuit with
And first from interface circuit connect；
The switching circuit exports corresponding switching information to the master controller, the master controller according to the user's operation
Corresponding encoded information is generated according to the switching information, and when the encoded information that the master controller generates is number selection letter
When breath, the number selection information is sent to the of the 1st slave by the master interface circuit by the master controller
One from interface circuit and second from interface circuit, and the number is selected information from interface circuit by the first of the 1st slave
The first of the 2nd slave is sent to from interface circuit and second from interface circuit, and so on, the N-1 slave
First from interface circuit by the number selection information be sent to the first of the n-th slave from interface circuit and second from
Interface circuit, each slave second from interface circuit by it is described number selection information be sent to each slave from
Controller, the slave controller of each slave identify number selection information and confirm the number selection letter
Cease whether corresponding with the number of its affiliated slave, slave corresponding with number selection information for number, from controller
According to the control of feature operation information transmitted by master controller number slave corresponding with number selection information
Execute corresponding switching on and shutting down operation, display operation or parameter adjustment operation.
5. mosaic screen according to claim 3 or 4, which is characterized in that when the encoded information that the master controller generates is
When feature operation information, the master controller detects whether N number of slave is original state, if so, the master controller
The feature operation information is sent to first of each slave in N number of slave by the master interface circuit from interface
Circuit or second from interface circuit, grasp the function from interface circuit from interface circuit or second by the first of each slave
The slave controller of each slave is sent to as information, so that described execute switching on and shutting down from controller control each slave
Operation, display operation or parameter adjustment operation, if it is not, then the master controller is by the master interface circuit by the function
Operation information is sent to the preceding selected slave first of last time power-off from interface circuit or second from interface circuit, and the last time powers off
The feature operation information is sent on described from interface circuit or second from interface circuit by the first of preceding selected slave
The slave controller of selected slave before secondary power-off, so that described control the preceding selected slave execution of the last time power-off from controller
Corresponding row switching on and shutting down operation, display operation or parameter adjustment operation.
6. mosaic screen according to claim 3 or 4, which is characterized in that the switching circuit includes at least one switching group,
The electricity output end of each switching group and a column port of the master controller connect one to one, multiple electricity of the switching group
Input terminal receives supply voltage, and multiple electrical inputs of each switching group respectively with multiple rows of the master controller
Port connects one to one.
7. mosaic screen according to claim 6, which is characterized in that each switching group includes multiple switch element, institute
The first end for stating each switch element in multiple switch element connects the electricity output end to form the switching group altogether, the multiple to open
One electrical input of the second end and the switching group of closing each switch element in element corresponds.
8. mosaic screen according to claim 3 or 4, which is characterized in that the master interface circuit is main USB connector, institute
The power pins for stating main USB connector are connect with external power supply, the first data pin and the master control of the main USB connector
First data pin of device processed, described first connect from interface circuit and described second from interface circuit, the main USB connection
Second data pin of the second data pin of device and the master controller, described first are from interface circuit, described second from connecing
Mouth circuit connection, the information pin of the main USB connector are grounded with grounding pin.
9. mosaic screen according to claim 3 or 4, which is characterized in that described first connects for first from USB from interface circuit
Connect device, described second from interface circuit be second from USB connector, described first from the power pins of USB connector with it is described
Second from the power pins of USB connector with external power supply and it is described connect from the power pins of controller, described first
From the first data pin of USB connector with described second from the first data pin of USB connector and described from controller
The connection of the first data pin, described first from the second data pin of USB connector and described second from the of USB connector
Two data pins and it is described connected from the second data pin of controller, described first from the information pin of USB connector with
It grounding pin and described second is grounded from the information pin of USB connector with grounding pin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510875413.9A CN105335126B (en) | 2015-11-30 | 2015-11-30 | A kind of mosaic screen |
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| CN201510875413.9A CN105335126B (en) | 2015-11-30 | 2015-11-30 | A kind of mosaic screen |
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| CN105335126B true CN105335126B (en) | 2019-03-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107316573A (en) * | 2017-06-15 | 2017-11-03 | 常州机电职业技术学院 | Split screen device, combination of liquid crystals display screen and its method of work under single-chip microcomputer control |
| CN107731154B (en) * | 2017-10-12 | 2020-02-21 | 深圳市奥拓电子股份有限公司 | LED display screen data backup device and method and terminal equipment |
| CN112150980B (en) * | 2019-06-28 | 2022-03-04 | 纬联电子科技(中山)有限公司 | Method for synchronously adjusting screen setting and multi-screen system |
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