CN109324773A - Screen method for automatically split-jointing and screen automatic mosaic system - Google Patents
Screen method for automatically split-jointing and screen automatic mosaic system Download PDFInfo
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- CN109324773A CN109324773A CN201710644998.2A CN201710644998A CN109324773A CN 109324773 A CN109324773 A CN 109324773A CN 201710644998 A CN201710644998 A CN 201710644998A CN 109324773 A CN109324773 A CN 109324773A
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The invention discloses the screen automatic mosaic system for including multiple screens and for the screen method for automatically split-jointing of the system.The multiple screen is equipped with wireless communication main equipment, and the periphery of the multiple screen is equipped with multiple wireless communications from equipment.The method includes the steps: the wireless communication main equipment on each screen initiates scanning, identifies and receives the signal from each wireless communication from equipment；According to the ranging information for the signal that each wireless communication main equipment receives, distance of each screen to each wireless communication from equipment is calculated；Coordinate of each screen in plane coordinate system is obtained according to the distance, completes the automatic positioning of each screen；Video image is divided into sub-video image corresponding with each screen according to the coordinate of each screen and is allocated；Each screen shows the corresponding sub-video image, and each sub-video image mosaic forms the video image.
Description
Technical field
The present invention relates to video-splicing process fields.In particular it relates to utilize the screen of wireless communication location technology
Curtain method for automatically split-jointing and the screen automatic mosaic system for using this method.
Background technique
In recent years, with the progress of the development of national economy and scientific and technological level, people are to ultra-large type video display apparatus
Demand constantly increases.The production difficulty of the single screen television of large scale it is big, it is at high cost etc. due to, at present generally using more
The mode of a screen splicing meets the needs of people show super large screen video.Common multi-screen splicing system on Vehicles Collected from Market
Video pictures are divided into multiple partial pictures by system, and each partial picture is shown in a predetermined sequence on different screens,
To realize that super large screen is shown.
However, the every piece of screen and its corollary equipment in multi-screen splicing system currently on the market be by manually into
Row positioning and configuration, process is cumbersome, and maintenance is inconvenient.For example, human configuration needs to spend when the number of screen that need to splice is more
Take longer time and is easy to appear configuration fault.In addition, being needed if a certain piece of screen breaks down in use
It repairs or replaces, then need to reconfigure whole system.
Summary of the invention
In view of the above-mentioned problems, present invention contemplates that provide a kind of screen method for automatically split-jointing with automatic positioning function with
And using this method screen automatic mosaic system, so as to realize Fast Installation configuration and it is easy to maintain.
A kind of screen method for automatically split-jointing is disclosed according to one embodiment of present invention.The method is used to include more
The screen splicing system of a screen, the multiple screen are equipped with wireless communication main equipment, and the periphery of the multiple screen is equipped with
It is multiple to wirelessly communicate from equipment.It the described method comprises the following steps:
Step S1: wireless communication main equipment on each screen initiates scanning, identifies and receives from each wireless communication from setting
Standby signal；
Step S2: according to the ranging information for the signal that each wireless communication main equipment receives, each institute is calculated
State distance of the screen to each wireless communication from equipment；
Step S3: coordinate of each screen in plane coordinate system is obtained according to the distance, completes each screen
Automatic positioning；
Step S4: video image is divided by son corresponding with each screen according to the coordinate of each screen
Video image is simultaneously allocated；
Step S5: each screen shows the corresponding sub-video image, and each sub-video image mosaic forms institute
State video image.
Preferably, the ranging information is that the wireless communication main equipment reception comes from each wireless communication from equipment
Signal when signal strength.
For example, the wireless communication main equipment can be bluetooth master, the wireless communication from equipment be bluetooth from setting
Standby, the signal is Bluetooth signal, also, in the step S2, and each screen is to each wireless communication from equipment
Distance be by following formula calculate obtain:
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, RSSI is the Bluetooth signal when bluetooth master is received from the signal of each Bluetooth slave devices
Intensity, A are the bluetooth signal intensity when Bluetooth slave devices and the bluetooth master are separated by 1 meter, n be environmental attenuation because
Son, abs are ABS function.
Alternatively, the wireless communication main equipment can be Zigbee main equipment, and the wireless communication is from equipment
For Zigbee from equipment, the signal is Zigbee signal, also, in the step S2, each screen to each nothing
Line communication from the distance of equipment is obtained by the calculating of following formula:
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, RSSI is when the Zigbee main equipment is received from the signal of each Zigbee Bluetooth slave devices
Zigbee signal strength, A are that the Zigbee signal when Zigbee is separated by 1 meter from equipment and the Zigbee main equipment is strong
Degree, n are the environmental attenuation factor, and abs is ABS function.
Preferably, in the step S3, the distance by each screen to each wireless communication from equipment
The relative positional relationship of each screen in the horizontal direction and the vertical direction is obtained, and is obtained according to the relative positional relationship
Obtain the coordinate of each screen in plane coordinate system.
Preferably, in the step S1, the transmitting letter is contained in the received signal of wireless communication main equipment
Number the wireless communication from the MAC Address of equipment, the wireless communication main equipment is according to the MAC Address to coming from each institute
Wireless communication is stated to be identified from the signal of equipment.
Preferably, in the step S4, according to the resolution ratio of the coordinate of each screen and the video image
The apex coordinate of image-region is calculated, and the video image is divided into multiple sub- views according to the apex coordinate
Frequency image.
A kind of screen automatic mosaic system is disclosed according to one embodiment of present invention.The screen splicing system packet
Include: video signal source, the video signal source provide the vision signal of video image；Video distributor, the video distributor
The vision signal is received, and the video image is divided and distributed；Multiple screens, for showing video image
And it is arranged in the form of two-dimensional array, each screen is provided with wireless communication main equipment；Projector, the projector
It is arranged correspondingly with the screen, and by the sub-video image projection from the video distributor to corresponding
The screen；Multiple wireless communications from equipment, the wireless communication from equipment be set to the screen two-dimensional array it is outer
It encloses, the wireless communication constantly externally emits signal from equipment.The system is able to carry out screen as described above and spells automatically
Connect method.
Preferably, described wireless the system comprises four of four vertex of the two-dimensional array for being located at the screen
It communicates from equipment.
As described above, screen method for automatically split-jointing according to the present invention and screen automatic mosaic system pass through using such as
Bluetooth positioning or Zigbee locating wireless communication location technology, realize multi-screen automatic positioning and video image it is automatic
Cutting, easy to use, quickly, maintenance cost is low for installation.
It should be appreciated that beneficial effects of the present invention are not limited to said effect, and can be described herein any beneficial
Effect.
Detailed description of the invention
Fig. 1 shows the schematic diagram of screen automatic mosaic system according to an embodiment of the present invention.
Fig. 2 illustrates the exemplary schematic diagram of the multi-screen splicing of video image.
Fig. 3 is the flow chart for illustrating each key step of screen method for automatically split-jointing according to an embodiment of the present invention.
Fig. 4 shows the coordinate diagram of sub-video image-region according to an embodiment of the present invention.
Fig. 5 to Fig. 7 is to show the schematic diagram of failure screen update according to an embodiment of the present invention.
Specific embodiment
Each specific embodiment according to the present invention is described in detail next, with reference to attached drawing.It is emphasized that attached drawing is only
It is schematical and is not necessarily and is illustrated according to actual proportions, because without limited.
One, screen automatic mosaic system and screen method for automatically split-jointing are summarized
Fig. 1 shows the schematic diagram of screen splicing system according to an embodiment of the present invention.The system is mainly used for needing super
The application environment, such as advertising wall, monitoring center, control centre, meeting room and showroom etc. that big video is shown.Such as Fig. 1
Shown, screen splicing system includes video signal source (not shown), video distributor 1, projector 2, projection screen 3, channel radio
Believer in a certain religion's equipment 4 and wireless communication main equipment 5 (referring to Fig. 5~Fig. 7).Projection screen 3 in the system according to the design needs with
The form of two-dimensional array is arranged on wall or bracket, each screen shows different sub-video images, all sub-videos
Image mosaic forms complete video image, to realize that large-sized image is shown.
As shown in fig. 1, screen automatic mosaic system according to an embodiment of the present invention includes with the four of 2 × 2 arrays arrangement
Block projection screen 3A to 3D.When needing not distinguish between them, projection screen 3 may be collectively referred to as.Certainly, the quantity of projection screen 3
It is without being limited thereto with matrix arrangement.Video signal source can be the video sources such as DVD, video camera, satellite receiver, set-top box,
Video signal source be capable of providing with by the corresponding vision signal of video image to be shown.Video distributor 1 is received from letter
The vision signal that number source is sent, and realize according to the automatic positioning processing to screen the division of vision signal, generates and screen
The corresponding sub-video signal of 3 quantity.Sub-video signal is sent to each projector 2 by video distribution machine 1.Projector 2 and projection
Screen 3 is arranged correspondingly, and respectively will sub-video image projection corresponding with sub-video signal to corresponding projection screen
On curtain 3.The sub-video image mosaic shown on each projection screen 3 together, forms complete video image.In Fig. 2
Illustrate the example that the sub-video image mosaic on four pieces of projection screens 3 as shown in Fig. 1 forms complete video image.
As shown in Figure 1, screen automatic mosaic system according to an embodiment of the present invention may include that projection screen layout area is arranged in
For the wireless communication of four vertex from equipment 4A to 4D, every wireless communication has fixed MAC Address to carry out area from equipment
Point.When needing not distinguish between them, wireless communication may be collectively referred to as from equipment 4.In addition, each projection screen 3 is provided with wirelessly
Communication master device 5.
Fig. 3 illustrates the basic step of screen method for automatically split-jointing according to an embodiment of the present invention.It wirelessly communicates from equipment
Constantly externally transmitting wireless signal, wireless communication main equipment 5 can be scanned wireless communication from equipment 4, and reception comes from
Wirelessly communicate the wireless signal from equipment 4.Due to including this channel radio from the signal of equipment 4 from certain wireless communication
The mac address information of the fixation of believer in a certain religion's equipment 4, so wireless communication main equipment 5 can be to the source of received wireless signal
Distinguish (step S1).Wirelessly communicating main equipment 5, received signal is transmitted to video distributor 1, video distributors 1
Distance of each wireless communication main equipment 5 to wireless communication from equipment 4 is calculated based on the ranging information contained in these signals
(step S2).Then, calculated distance is further converted into the position of each wireless communication main equipment 5 by video distributor 1
Coordinate information, that is, be provided with coordinate (step of the projection screen 3 of wireless communication main equipment 5 in screen array plane coordinate system
Rapid S3).After obtaining the coordinate information of each projection screen 3 and being achieved in the automatic positioning of projection screen 3, video distribution
Device 1 carries out image procossing to video image, wherein video image is divided into and the quantity of projection screen 3 and pattern of rows and columns phase
Several corresponding sub-video images (step S4).Video distributor 1 will be with sub- view according to the coordinate information of each projection screen 3
The corresponding sub-video signal of frequency image is sent to corresponding projector 2, so that sub-video image is displayed on corresponding projection
On screen 3, so that the sub-video image mosaic being shown on each projection screen 3 be made to form complete video image (step S5).
In screen automatic mosaic system according to the present invention and screen method for automatically split-jointing, in order to realize to projection screen
The automatic positioning of curtain 3 can position skill using suitable existing wireless location technology, such as bluetooth location technology, Zigbee
Art.For example, wireless communication can be the Bluetooth slave devices for sending Bluetooth signal from equipment 4, wireless communication main equipment 5 be can be
Scan and receive the bluetooth master of Bluetooth signal.Alternatively, wireless communication can be from equipment 4 sends Zigbee signal
From equipment, wirelessly communicate main equipment 5 can be scanning and receives the Zigbee main equipment of Zigbee signal Zigbee.
As described above, screen automatic mosaic system according to an embodiment of the present invention and screen method for automatically split-jointing utilize nothing
Line location technology can be realized the automatic positioning to multiple projection screens and the automatic distribution of video image.
Two, the detailed description of the screen method for automatically split-jointing based on bluetooth positioning
The four screen systems explanation arranged next, with reference to Fig. 1 and 2 × 2 array shown in Fig. 2 is real according to the present invention
Apply example using the screen method for automatically split-jointing of bluetooth location technology and the example of screen automatic mosaic system.Firstly, setting exists
Wireless communication main equipment 5 on projection screen initiates scanning, identifies and receives and believes from each wireless communication from the bluetooth of equipment 4
Number (step S1).For example, the wireless communication main equipment 5 of the projection screen 3A in Fig. 1 is wirelessly communicated by scanning from equipment 4A
To 4D, obtain respectively from wireless communication from the signal strength of equipment 4A be 3A4A (received signal strength, generally negative value, under
Same) signal, from wireless communication from the signal that the signal strength of equipment 4B is 3A4B, from wireless communication from equipment 4C's
Signal that signal strength is 3A4C and the signal for being 3A4D from the signal strength of equipment 4D from wireless communication.Projection screen 3B
Wireless communication main equipment 5 by scanning wireless communication from equipment 4A to 4D, obtain respectively from wireless communication from equipment 4A
Signal strength be 3B4A signal, from wireless communication from the signal strength of equipment 4B be 3B4B signal, come from channel radio
Signal that the signal strength of believer in a certain religion's equipment 4C is 3B4C and the letter for being 3B4D from the signal strength of equipment 4D from wireless communication
Number.The wireless communication main equipment 5 of projection screen 3C, from equipment 4A to 4D, is obtained respectively from wireless by scanning wireless communication
Communicate from the signal strength of equipment 4A be 3C4A signal, from wireless communication be 3C4B from the signal strength of equipment 4B letter
Number, it is strong from the signal of equipment 4D from wireless communication from the signal that the signal strength of equipment 4C is 3C4C and from wireless communication
Degree is the signal of 3C4D.The wireless communication main equipment 5 of projection screen 3D is wirelessly communicated by scanning from equipment 4A to 4D, respectively
It obtains strong from the signal, the signal from wireless communication from equipment 4B that the signal strength of equipment 4A is 3D4A from wireless communication
Signal that degree be 3D4B, from wireless communication from the signal strength of equipment 4C be 3D4C signal and from wirelessly communicating from setting
The signal that the signal strength of standby 4D is 3D4D.Alternatively, by wireless communication main equipment 5 in preset it is each wireless communication from
The transmitting signal strength of equipment 4, can also be obtained by scanning: wireless communication declines from equipment 4A to the signal of projection screen 3A
Subtract 3Ad4A, wireless communication and decays 3Ad4B, wireless communication from equipment 4C to projection screen from equipment 4B to the signal of projection screen 3A
The signal decaying 3Ad4C and wireless communication of curtain 3A is from equipment 4D to the signal of projection screen 3A decaying 3Ad4D；Wireless communication from
The signal decaying 3Bd4A of equipment 4A to projection screen 3B, wireless communication decay from equipment 4B to the signal of projection screen 3B
3Bd4B, wireless communication are from equipment 4C to the signal of projection screen 3B decaying 3Bd4C and wireless communication from equipment 4D to projection screen
The signal decaying 3Bd4D of curtain 3B；Wireless communication is from equipment 4A to the signal of projection screen 3C decaying 3Cd4A, wireless communication from setting
The signal decaying 3Cd4B of standby 4B to projection screen 3C, it wirelessly communicates from equipment 4C to the signal of projection screen 3C decaying 3Cd4C
With wireless communication from equipment 4D to the signal of projection screen 3C decaying 3Cd4D；Wireless communication is from equipment 4A to projection screen 3D's
Signal decay 3Dd4A, wireless communication from equipment 4B to the signal of projection screen 3D decaying 3Dd4B, wireless communication from equipment 4C to
The signal decaying 3Dd4C and wireless communication of projection screen 3D is from equipment 4D to the signal of projection screen 3D decaying 3Dd4D.So
Afterwards, then by transmitting signal strength and each signal pad value the bluetooth signal intensity received is calculated.
Then, the bluetooth signal intensity received according to each wireless communication main equipment 5, calculates separately projection screen 3A extremely
Distance (step S2) of the 3D to each wireless communication from equipment 4A to 4D.For example, can be counted according to following distance calculation formula
Calculate distance.
D=10^ ((abs (RSSI)-A)/(10*n)) (1)
Wherein, d is calculated distance；RSSI is received signal strength (negative value)；A is transmitting terminal (that is, wireless communication
From equipment) and receiving end (that is, wireless communication main equipment) signal strength when being separated by 1 meter；N is the environmental attenuation factor.Abs is
ABS function, RSSI value are usually indicated with dBm value.A and n is the constant obtained by experiment, can be preset.
By above-mentioned formula (1) it is found that coming from each channel radio for what wireless communication main equipment 5 in step sl received
The received signal strength of the Bluetooth signal of believer in a certain religion's equipment 4 substitutes into formula (1), can calculate wireless communication main equipment 5 to each nothing
Line communicates the distance from equipment 4.Due to Bluetooth signal signal strength with the increase of transmission range sharp-decay,
Calculated distance is easy to be accurate to a centimetre grade.Step S2 can be carried out by wireless communication main equipment 5, then will be calculated
Distance information transmission out is to video distributor 1.Alternatively, can be wireless communication main equipment 5 for the Bluetooth signal received
After ranging information (being received signal strength here) etc. is transmitted to video distributor 1, which is executed by video distributor 1.
Then, each projection screen 3 is obtained in plane coordinate system from the distance of equipment 4 by projection screen 3 to each wireless communication
In coordinate, and according to the coordinate of each projection screen 3 realize projection screen 3 automatic positioning (step S3).It specifically, can be with
Each projection screen 3 is obtained in the horizontal direction and the vertical direction to each wireless communication from the distance of equipment 4 by projection screen 3
Relative positional relationship, and coordinate of each projection screen 3 in plane coordinate system is obtained according to relative positional relationship.For example,
In the case where the projection screen array of as shown in Figure 12 × 2, in the horizontal direction and the vertical direction according to each projection screen 3
Relative positional relationship, (1,1), (1,2), (2,1) and (2,2) this four position coordinates can be obtained.Obviously, by upper rheme
Coordinate is set, can easily realize automatic positioning of each projection screen 3 in two-dimensional array.
In addition, it is to be understood that each illustrating four apex angles arrangement in screen array in Fig. 1 and Fig. 2 there are four nothing
Line communicates the example from equipment 4A to 4D.But by localization method above it is found that multiple projections for being arranged with two-dimensional array
The more than one automatic positioning for wirelessly communicating and being realized from equipment 4 to projection screen is arranged in screen.In addition, channel radio
Believer in a certain religion's equipment 4 can also be not arranged in the vertex of screen array, but be separately positioned on the periphery of screen array.
Then, image procossing is carried out to video image according to position coordinates, video image is divided into and each projection screen
3 corresponding sub-video images are simultaneously allocated (step S4).Specifically, it can realize by the following method to video image
It divides and distributes.
Assuming that the position coordinates of projection screen 3 in systems be (x, y), video image resolution ratio be (TotalH,
TotalV), system scale is (TotalX, TotalY), and sub-video image size is (SizeH, SizeV), sub-video image district
Domain is (StarH (initial row), StartV (starting column), EndH (end line), EndV (end column)), then can obtain following
Calculation formula:
TotalX=xmax (2)
TotalY=ymax (3)
SizeH=TotalH/TotalX (4)
SizeV=TotalV/totallY (5)
StarH=SizeH × (x-1) (6)
StarV=SizeV × (y-1) (7)
EndH=StarH+SizeH (8)
EndV=StarV+SizeV (9)
The resolution ratio of 4 projection screen systems and video image for 2 × 2 arrays as depicted in figs. 1 and 2 is 1080
The case where × 1920 (being in the horizontal direction herein, row, be vertically column), the calculating ginseng in the following table 1 can be obtained
Number.
Table 1
According to the calculating parameter in above-mentioned calculation formula (2)~(9) and table 1, each projection screen 3 can be calculated separately out
Sub-video image-region is as follows:
The position coordinates of projection screen 3A are (1,1), and
StarH=SizeH × (x-1)=(TotalH/TotalX) × (x-1)
=1080/2 × (1-1)=540 × 0=0；
StarV=SizeV × (y-1)=(TotalV/TotalY) × (y-1)
=1920/2 × (1-1)=960 × 0=0；
EndH=StarH+SizeH=(TotalH/TotalX) × x=540 × 1=540；
EndV=StarV+SizeV=(TotalV/TotalY) × y=960 × 1=960；
Therefore, the projection screen 3A in Fig. 1 by sub-video image-region to be shown be (StarH, StartV, EndH,
EndV)=(0,0,540,960).
The position coordinates of projection screen 3B are (1,2), and
StarH=SizeH × (x-1)=(TotalH/TotalX) × (x-1)
=1080/2 × (1-1)=540 × 0=0；
StarV=SizeV × (y-1)=(TotalV/TotalY) × (y-1)
=1920/2 × (2-1)=960 × 1=960；
EndH=StarH+SizeH=(TotalH/TotalX) × x=540 × 1=540；
EndV=StarV+SizeV=(TotalV/TotalY) × y=960 × 2=1920；
Therefore, the projection screen 3B in Fig. 1 by sub-video image-region to be shown be (StarH, StartV, EndH,
EndV)=(0,960,540,1920).
The position coordinates of projection screen 3C are (2,1), and
StarH=SizeH × (x-1)=(TotalH/TotalX) × (x-1)
=1080/2 × (2-1)=540 × 1=540；
StarV=SizeV × (y-1)=(TotalV/TotalY) × (y-1)
=1920/2 × (1-1)=960 × 0=0；
EndH=StarH+SizeH=(TotalH/TotalX) × x=540 × 2=1080；
EndV=StarV+SizeV=(TotalV/TotalY) × y=960 × 1=960；
Therefore, the projection screen 3C in Fig. 1 by sub-video image-region to be shown be (StarH, StartV, EndH,
EndV)=(540,0,1080,960).
The position coordinates of projection screen 3D are (2,2), and
StarH=SizeH × (x-1)=(TotalH/TotalX) × (x-1)
=1080/2 × (2-1)=540 × 1=540；
StarV=SizeV × (y-1)=(TotalV/TotalY) × (y-1)
=1920/2 × (2-1)=960 × 0=960；
EndH=StarH+SizeH=(TotalH/TotalX) × x=540 × 2=1080；
EndV=StarV+SizeV=(TotalV/TotalY) × y=960 × 2=1920；
Therefore, the projection screen 3D in Fig. 1 by sub-video image-region to be shown be (StarH, StartV, EndH,
EndV)=(540,960,1080,1920).
In this way, as shown in figure 4, to obtain each projection screen right by the apex coordinate of image-region to be shown, and thus
Video image is divided.Finally, corresponding sub-video image is shown on each projection screen 3, all sub-video image structures
At complete video image, to realize the automatic Mosaic (step S5) of video image.
Although illustrating screen automatic mosaic system and screen according to the present invention for using bluetooth location technology above
The example of curtain method for automatically split-jointing, but it is apparent that the invention is not restricted to it, but can using it is any of it is suitable it is wireless calmly
Position technology.For example, it is also possible to using Zigbee location technology.It, equally can be according to above-mentioned when using Zigbee location technology
Formula (1) calculates distance by received signal strength (ranging information).
It should be appreciated that although above-mentioned screen splicing method is the explanation carried out by taking 2 × 24 screen systems as an example, but
It is expressly intended to apply to the multi-screen connected welding system of any n × m array form arrangement.
Three, the maintenance example of screen splicing system
As shown in fig. 5, it is assumed that configured complete 3 × 4 12 screen splicing walls.Through use after a period of time, such as
Shown in Fig. 6, there is failure in the equipment (1,2) of the first row secondary series.In the case, according to past maintenance mode, work
After Cheng personnel are repaired or replaced the equipment to break down to scene, it is necessary to be configured again to complete equipment, very
Expend the time.By using screen splicing system according to the present invention, it is only necessary to automatic by system after maintenance or replacement
An above-mentioned screen splicing method is executed, it can be as shown in fig. 7, plug and play, realizes the Auto-matching of new equipment, again in fact
The multi-screen splicing of existing video image.
Although above, with reference to the accompanying drawings of luminaire according to the present invention, but the invention is not restricted to this,
And it will be understood by those skilled in the art that in the case where the spirit or scope limited without departing from appended claim of the present invention,
Various changes, combination, secondary combination and modification can be made.
Claims (9)
1. a kind of screen method for automatically split-jointing, for the screen splicing system including multiple screens, the multiple screen is equipped with
Main equipment is wirelessly communicated, the periphery of the multiple screen is equipped with multiple wireless communications from equipment, the described method comprises the following steps:
Step S1: wireless communication main equipment on each screen initiates scanning, identifies and receives from each wireless communication from equipment
Signal；
Step S2: according to the ranging information for the signal that each wireless communication main equipment receives, each screen is calculated
Distance of the curtain to each wireless communication from equipment；
Step S3: coordinate of each screen in plane coordinate system is obtained according to the distance, completes oneself of each screen
Dynamic positioning；
Step S4: video image is divided by sub-video figure corresponding with each screen according to the coordinate of each screen
Picture is simultaneously allocated；
Step S5: each screen shows the corresponding sub-video image, and each sub-video image mosaic forms the view
Frequency image.
2. screen method for automatically split-jointing according to claim 1, which is characterized in that the ranging information is the channel radio
Believe signal strength when main equipment is received from each wireless communication from the signal of equipment.
3. screen method for automatically split-jointing according to claim 2, which is characterized in that the wireless communication main equipment is bluetooth
Main equipment, the wireless communication are Bluetooth slave devices from equipment, and the signal is Bluetooth signal, also, in the step S2,
Each screen to each wireless communication from the distance of equipment is obtained by the calculating of following formula:
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, RSSI is the bluetooth signal intensity when bluetooth master is received from the signal of each Bluetooth slave devices, A
Bluetooth signal intensity when being separated by 1 meter for the Bluetooth slave devices and the bluetooth master, n are the environmental attenuation factor, and abs is
ABS function.
4. screen method for automatically split-jointing according to claim 2, which is characterized in that the wireless communication main equipment is
Zigbee main equipment, the wireless communication are Zigbee from equipment from equipment, and the signal is Zigbee signal, also, in institute
It states in step S2, each screen to each wireless communication from the distance of equipment is obtained by the calculating of following formula:
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, RSSI is the Zigbee when Zigbee main equipment is received from the signal of each Zigbee Bluetooth slave devices
Signal strength, A are the Zigbee signal strength when Zigbee is separated by 1 meter from equipment and the Zigbee main equipment, and n is ring
Border decay factor, abs are ABS function.
5. screen method for automatically split-jointing according to any one of claim 1 to 4, which is characterized in that in the step S3
In, each screen is obtained in the horizontal direction from the distance of equipment to each wireless communication by each screen and is hung down
The upward relative positional relationship of histogram, and institute of each screen in plane coordinate system is obtained according to the relative positional relationship
State coordinate.
6. screen method for automatically split-jointing according to any one of claim 1 to 4, which is characterized in that in the step S1
In, contain the MAC for emitting the wireless communication of the signal from equipment in the wireless communication received signal of main equipment
Address, the wireless communication main equipment according to the MAC Address to from each wireless communication from the signal of equipment into
Row identification.
7. screen method for automatically split-jointing according to any one of claim 1 to 4, which is characterized in that in the step S4
In, the apex coordinate of image-region is calculated according to the resolution ratio of the coordinate of each screen and the video image, and
The video image is divided into multiple sub-video images according to the apex coordinate.
8. a kind of screen automatic mosaic system, which is characterized in that the screen splicing system includes:
Video signal source, the video signal source provide the vision signal of video image；
Video distributor, the video distributor receives the vision signal, and the video image is divided and divided
Match；
Multiple screens, for showing video image and being arranged in the form of two-dimensional array, each screen is provided with wirelessly
Communication master device；
Projector, the projector are arranged correspondingly with the screen, and will be from described in the video distributor
Sub-video image projection is to the corresponding screen；
For multiple wireless communications from equipment, the wireless communication is set to the periphery of the two-dimensional array of the screen from equipment, described
Wireless communication constantly externally emits signal from equipment,
Wherein, the system is able to carry out the screen method for automatically split-jointing as described in any one of claims 1 to 7.
9. screen automatic mosaic system according to claim 8, which is characterized in that the system comprises be located at the screen
Two-dimensional array four of the four vertex wireless communications from equipment.
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| CN201710644998.2A CN109324773A (en) | 2017-08-01 | 2017-08-01 | Screen method for automatically split-jointing and screen automatic mosaic system |
| PCT/CN2017/103646 WO2019024210A1 (en) | 2017-08-01 | 2017-09-27 | Automatic screen splicing method and automatic screen splicing system |
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| CN201710644998.2A CN109324773A (en) | 2017-08-01 | 2017-08-01 | Screen method for automatically split-jointing and screen automatic mosaic system |
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| CN110198470A (en) * | 2019-06-06 | 2019-09-03 | 深圳市福瑞达显示技术有限公司 | Splice the distributed display methods and its display system of fan screen |
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| CN102737616A (en) * | 2012-06-28 | 2012-10-17 | 广东威创视讯科技股份有限公司 | Method and device for automatically identifying positions of units of splicing wall of large screen |
| CN105824593A (en) * | 2016-03-09 | 2016-08-03 | 京东方科技集团股份有限公司 | Spliced screen display system and spliced display method |
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| CN106303287B (en) * | 2015-05-26 | 2019-06-25 | 中国移动通信集团公司 | A kind of multi-mobile-terminal screen splicing method, equipment and system based on near-field communication |
| CN106020757B (en) * | 2016-05-16 | 2019-10-29 | 联想(北京)有限公司 | A kind of screen splicing method and electronic equipment |
| CN106502603B (en) * | 2016-09-26 | 2019-04-12 | 明基智能科技（上海）有限公司 | Mosaic screen display methods and system |
| CN106657955B (en) * | 2016-12-08 | 2019-05-28 | 海信集团有限公司 | Joining method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102737616A (en) * | 2012-06-28 | 2012-10-17 | 广东威创视讯科技股份有限公司 | Method and device for automatically identifying positions of units of splicing wall of large screen |
| CN105824593A (en) * | 2016-03-09 | 2016-08-03 | 京东方科技集团股份有限公司 | Spliced screen display system and spliced display method |
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| CN110198470A (en) * | 2019-06-06 | 2019-09-03 | 深圳市福瑞达显示技术有限公司 | Splice the distributed display methods and its display system of fan screen |
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