CN113380183A - Correction coefficient rotating method and device, LED display screen and computer equipment - Google Patents
Correction coefficient rotating method and device, LED display screen and computer equipment Download PDFInfo
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- CN113380183A CN113380183A CN202110448192.2A CN202110448192A CN113380183A CN 113380183 A CN113380183 A CN 113380183A CN 202110448192 A CN202110448192 A CN 202110448192A CN 113380183 A CN113380183 A CN 113380183A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
- G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
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Abstract
The invention relates to a method and a device for rotating a correction coefficient, which are used for receiving a standard correction coefficient and a standard direction corresponding to the standard correction coefficient sent by an upper computer and storing the standard correction coefficient and the standard direction into a non-volatile storage medium; if the LED box body rotates, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after rotation into a dynamic storage area in a receiving card of the LED box body; receiving a display control instruction sent by an upper computer; the method and the device provided by the invention control the rotation of the pre-stored standard correction coefficient according to the direction rotation result of the LED box body, generate the display control signal by utilizing the rotated current correction coefficient, and effectively improve the correction effect and the display effect.
Description
Technical Field
The invention relates to the field of correction coefficient processing, in particular to a method and a device for rotating a correction coefficient, an LED display screen and computer equipment.
Background
At present, when the correction processes such as brightness correction or bright and dark line repair correction and the like are required to be performed on an LED display screen, a receiving card or an LED box body in the LED box body needs to store a corresponding correction coefficient in advance, wherein each correction coefficient is composed of a plurality of correction coefficients, each correction coefficient corresponds to one LED lamp point (brightness of each lamp point before leaving factory may be inconsistent, or bright and dark lines are generated at the boundary between the LED box body and the LED box body between the LED module group and the LED box body, a dark seam is generated when a physical seam is too large, a bright seam is generated when the physical seam is smaller than the distance between the lamp points, so that brightness uniformity of the LED box body or the LED screen body needs to be maintained or the bright and dark lines need to be eliminated through the correction coefficients), when the position of the LED box body or the LED screen body (composed of a plurality of LED box bodies) is changed, an image picture can be changed along with the LED box body or the LED screen body, in order to maintain the original display condition of the image picture (the image picture needs to be constantly controlled to be a forward display condition), the image picture needs to be rotated, the position of the LED lamp point is changed due to the rotation of the image picture, therefore, the correction coefficients are not corresponding to the correction coefficients stored in the LED box in advance, for example, if there are 4 LED light points, the correction coefficients stored in advance and corresponding to the LED light points are 0.8-0.7-0.6-0.5 (the correction coefficient corresponding to each light point is unique), if the LED box is changed in position (that is, the orientation of the LED box is changed, if the direction of the LED box is changed, and if the direction is changed from the right top of the LED box to the right bottom of the LED box after the LED box is rotated clockwise by 180 degrees around the top left corner, the image plane needs to be rotated to be suitable for the orientation of the LED box before), the correction coefficients corresponding to the 4 LED light points should be 0.5-0.6-0.7-0.8 (rotated by 180 degrees); in summary, if the pre-stored correction coefficient is used to correct the rotated LED lamp point, the pre-stored correction coefficient cannot meet the correction requirement of the rotated LED lamp point, so that the correction effect and the display effect of the LED box or the LED display screen are affected to some extent. Therefore, a new technical solution to solve the above problems needs to be found by those skilled in the art.
Disclosure of Invention
Aiming at the problems, the invention provides a method for rotating a correction coefficient, which comprises the steps of receiving a standard correction coefficient of an LED box body sent by an upper computer and a standard direction of the LED box body corresponding to the standard correction coefficient, and storing the standard correction coefficient and the standard direction into a non-easy-to-vector storage medium of the LED box body; monitoring whether the LED box body rotates in real time, if so, acquiring the current direction of the LED box body, and calculating the direction rotation result of the LED box body according to the current direction and the standard direction; reading a standard correction coefficient from a non-easy-to-vector storage medium, rotating the standard correction coefficient according to a direction rotation result, and storing a current correction coefficient obtained after rotation into a dynamic storage area of an internal memory of a receiving card of the LED box body; receiving a display control instruction sent by an upper computer, wherein the display control instruction comprises a correction coefficient reading instruction and display data; and reading the current correction coefficient stored in the dynamic storage area according to the correction coefficient reading instruction, generating a display control signal according to the display data and the current correction coefficient, and sending the display control signal to an LED driving chip of the LED box body to control the display picture of the LED box body.
Furthermore, the LED box body comprises a plurality of LED modules and a receiving card connected with the LED modules, and the non-easy-vector storage medium is the receiving card or a storage chip in each LED module.
Further, if the non-easy-to-vector storage medium is a storage chip in each LED module, the standard correction coefficient of the LED box and the standard direction of the LED box corresponding to the standard correction coefficient, which are sent by the upper computer, are received, and the standard correction coefficient and the standard direction are stored in the non-easy-to-vector storage medium of the LED box, which includes: and according to a preset standard correction coefficient splitting strategy, splitting the standard correction coefficient into a plurality of groups of standard sub-correction coefficients corresponding to the LED modules one by one, and storing each group of standard sub-correction coefficients and the corresponding standard sub-directions to the corresponding storage chips in the LED modules.
Further, calculating a direction rotation result of the LED box according to the current direction and the standard direction, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after the rotation into a dynamic storage area of a memory of the LED box receiving card includes: respectively comparing the standard sub-direction corresponding to each group of standard sub-correction coefficients with the current direction to obtain a direction rotation result corresponding to each group of standard sub-correction coefficients; respectively rotating each group of standard sub-correction coefficients according to the direction rotation result corresponding to each group of standard sub-correction coefficients to obtain the current sub-correction coefficients; and loading a plurality of groups of current sub-correction coefficients obtained after rotation into a dynamic storage area of the memory of the receiving card of the LED box body for storage.
Further, loading the plurality of groups of current sub-correction coefficients obtained after rotation into a dynamic storage area of a memory of the receiving card of the LED box body for storage comprises: and storing each group of current sub-correction coefficients in a dynamic storage area of a memory of the LED box receiving card according to the current position sequence or the standard position sequence of the corresponding LED module.
Further, if each group of current sub-correction coefficients is stored in a dynamic storage area of the memory of the receiving card of the LED box according to the current position sequence of the LED module corresponding to the current sub-correction coefficients, reading the current sub-correction coefficients stored in the dynamic storage area includes: sequentially reading each group of current sub-correction coefficients according to the position sequence of each group of current sub-correction coefficients stored in the dynamic storage area, or straightening the current correction coefficients stored in the dynamic storage area, and reading the current sub-correction coefficients according to the sequence after straightening;
if each group of current sub-correction coefficients are stored in a dynamic storage area of an internal memory of the LED box body receiving card according to the standard position sequence of the corresponding LED module, when each group of current sub-correction coefficients are loaded into the dynamic storage area of the internal memory of the LED box body receiving card for storage, the storage address of the current sub-correction coefficient corresponding to each LED module in the dynamic storage area is recorded, and reading the current correction coefficient stored in the dynamic storage area comprises the following steps: and reading each group of current sub-correction coefficients according to the current position sequence of each LED module and the storage address of the current sub-correction coefficient corresponding to each LED module in the dynamic storage area.
Further, the direction rotation result is the angle difference between the current direction and the standard direction.
The invention also provides a rotation device of the correction coefficient, which comprises a receiving module, an obtaining module, a monitoring module, a correction coefficient rotation module and a display control signal generation module, wherein: the receiving module is connected with the display control signal generating module and used for receiving the standard correction coefficient of the LED box body sent by the upper computer and the standard direction of the LED box body corresponding to the standard correction coefficient and storing the standard correction coefficient and the standard direction into a non-easy-to-vector storage medium of the LED box body; the acquisition module is connected with the monitoring module and used for acquiring the current direction of the LED box body; the monitoring module is connected with the acquisition module and the correction coefficient rotation module and is used for monitoring whether the LED box body rotates in real time, if so, acquiring the current direction of the LED box body from the acquisition module, and calculating the direction rotation result of the LED box body according to the current direction and the standard direction; the correction coefficient rotating module is connected with the monitoring module and the display control signal generating module and used for reading a standard correction coefficient from a non-easy-to-vector storage medium, rotating the standard correction coefficient according to a direction rotating result and storing a current correction coefficient obtained after rotation into a dynamic storage area of an internal memory of a receiving card of the LED box body; and the display control signal generation module is used for reading the current correction coefficient stored in the dynamic storage area according to the correction coefficient reading instruction after receiving the display control instruction sent by the receiving module, generating a display control signal according to the display data and the current correction coefficient, and sending the display control signal to an LED drive chip of the LED box body so as to control the display picture of the LED box body.
The invention also provides an LED display screen which comprises a plurality of LED boxes, wherein each LED box comprises a plurality of LED modules and a receiving card connected with the LED modules, and the receiving card is provided with the rotating device for correcting the coefficient.
The invention also provides computer equipment which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the correction coefficient rotating method when executing the computer program.
The rotation method and device of the correction coefficient, the LED display screen and the computer equipment provided by the invention at least have the following beneficial effects: whether the LED box body rotates is monitored in real time, if the LED box body rotates, a direction rotating result is obtained according to the current direction and the standard direction of the LED box body, a prestored standard correction coefficient is rotated according to the direction rotating result, and after a display control instruction is received, a display control signal is generated according to the current correction coefficient and display data obtained after rotation, so that the LED box body is corrected and an LED box body display picture is displayed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart illustrating a method for rotating a correction factor according to an embodiment of the present invention;
FIG. 2 is a schematic view of an LED housing in a standard orientation in an embodiment of the invention;
FIG. 3 is a first schematic view of an LED housing in a current orientation according to an embodiment of the present invention;
FIG. 4 is a second schematic view of the LED box in the current direction according to the embodiment of the invention;
FIG. 5 is a schematic structural diagram of an LED box according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a rotation process of multiple sets of standard sub-calibration coefficients according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a rotation apparatus for calibration coefficients according to an embodiment of the present invention;
the system comprises a 1-LED box body, a 101-receiving card, a 102-LED module, a 701-receiving module, a 702-obtaining module, a 703-monitoring module, a 704-correction coefficient rotating module and a 705-display control signal generating module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment of the present invention, as shown in fig. 1, a method for rotating a correction coefficient is disclosed, and specifically, the method is executed by a receiving card in an LED box. The method comprises the following steps:
step S101: and receiving the standard correction coefficient of the LED box body and the standard direction of the LED box body corresponding to the standard correction coefficient sent by the upper computer, and storing the standard correction coefficient and the standard direction into a non-easy-to-vector storage medium of the LED box body.
In this embodiment, the host computer indicates the computer that can directly send the control command, and the host computer in this embodiment is connected with the receiving card communication of LED box, and standard correction coefficient can be calculated by correction system in advance, sends the receiving card of LED box via the host computer and saves, can follow-up when using LED box display screen to rectify the LED box according to the standard correction coefficient of prestore to improve display effect.
Specifically, in this embodiment, the correction coefficient includes a correction coefficient obtained in a process of performing correction such as luminance correction and bright and dark line correction on the LED box or the LED display screen.
Taking brightness correction as an example, after each LED box is produced, in order to improve the uniformity of the display brightness, the brightness correction is performed on the LED box, and the specific correction method is as follows: the LED box body is lightened, the brightness of the LED lamp points is obtained one by one, the correction coefficient of each LED lamp point is calculated according to the actual brightness and the target brightness of each LED lamp point on the LED box body, the correction coefficient of each LED lamp point can be arranged according to the position of each LED lamp point in the LED box body, a correction coefficient matrix (namely the standard correction coefficient mentioned in the embodiment) consisting of a plurality of correction coefficients is formed, and then the LED lamp points at the corresponding positions in the LED box body are corrected according to the positions of the correction coefficients in the standard correction coefficient. The direction of the LED box body when the standard correction coefficient is calculated is the standard direction called in the invention.
Step S102: and monitoring whether the LED box body rotates in real time, if so, acquiring the current direction of the LED box body, and calculating the direction rotation result of the LED box body according to the current direction and the standard direction.
When the LED boxes are spliced to form a complete LED display screen, the direction of the LED boxes may be changed, i.e., rotated, compared to the direction when the standard correction coefficient is calculated.
Specifically, in this embodiment, whether the real-time monitoring LED box rotates can be determined by whether the current direction of the LED box is the same as the standard direction, and if the current direction of the LED box is the same as the standard direction, it indicates that the LED box does not rotate, and if the current direction of the LED box is not the same as the standard direction, it indicates that the LED box rotates.
When the LED box body rotates, the current direction of the LED box body is obtained, and the direction rotation result of the LED box body is calculated according to the current direction and the standard direction. More specifically, in this embodiment, the direction comparison result is an angle difference between the current direction and the standard direction, where the angle difference may be the most basic 90 °, 180 °, 270 °,0 °, or 360 °, and may also be any other number of degrees, and is determined according to the actual rotation angle of the LED box.
For example, if the four vertices of the LED box are A, B, C, D, where the standard correction factor is calculated, as shown in fig. 2, the direction of the LED box in fig. 2 is the standard direction, where the side AB is the side directly above the LED box. When the LED boxes are spliced, the direction of the LED boxes changes, as shown in fig. 3 and 4, which is the current direction of the LED boxes after the direction change.
In fig. 3, the side AB is a side right below the LED box, and the current direction of the LED box is rotated by 180 degrees clockwise compared with the standard direction based on the clockwise direction. Further, the direction rotation result of the current direction and the standard direction can be represented by an angle difference between the current direction and the standard direction, and is recorded as 180 degrees (assuming that the angle difference corresponding to the clockwise direction is a positive number); if the counterclockwise direction is taken as the standard, the current direction of the LED box is rotated by 180 degrees counterclockwise compared to the standard direction, that is, the direction rotation result of the current direction and the standard direction is represented by an angle difference, which is-180 degrees (assuming that the angle difference corresponding to the counterclockwise direction is a negative number).
In fig. 4, the side AB is the side on the left side of the LED box, and the LED box is rotated by 270 degrees clockwise with respect to the clockwise direction, that is, the comparison result between the current direction and the standard direction is represented by an angle difference and is recorded as 270 degrees (assuming that the angle difference corresponding to the clockwise direction is a positive number). If the counterclockwise direction is taken as the standard, the current direction of the LED box is rotated by 90 degrees counterclockwise compared to the standard direction, that is, the direction rotation result of the current direction and the standard direction is represented by an angle difference, which is-90 degrees (assuming that the angle difference corresponding to the counterclockwise direction is a negative number).
Step S103: and reading the standard correction coefficient from the non-easy-vector storage medium, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after rotation into a dynamic storage area of an internal memory of the LED box receiving card.
Specifically, in this step, the standard correction coefficients are read from the non-volatile storage medium, including reading the correction coefficients corresponding to each LED module line by line according to the size of the LED module, and splicing the correction coefficients corresponding to all the LED modules into the correction coefficients of the complete LED box after reading them.
More specifically, in this step, the standard correction coefficients are rotated according to the direction rotation result, and if the LED box is rotated 270 degrees clockwise, as shown in fig. 4, the standard correction coefficients in the matrix form are also rotated 270 degrees clockwise, so as to obtain the current correction coefficients represented in the matrix form after rotation. Further, in this embodiment, the memory of the receiving card of the LED box may be a Synchronous Dynamic Random Access Memory (SDRAM), a DDR2 memory (Double Data Rate 2), a DDR3 memory, or a DDR4 memory, which is not limited in this disclosure.
Step S104: and receiving a display control instruction sent by the upper computer.
The display control instruction is sent by a user through an upper computer controlled by the user, and the upper computer is in communication connection with a receiving card in the LED box body so as to realize information transmission. Specifically, the display control command includes a correction coefficient reading command and display data, and more specifically, the display data includes various display parameters such as image data and brightness.
Step S105: and reading the current correction coefficient stored in the dynamic storage area according to the correction coefficient reading instruction, generating a display control signal according to the display data and the current correction coefficient, and sending the display control signal to an LED driving chip of the LED box body to control the display picture of the LED box body.
In this embodiment, when the direction of the LED box is the standard direction, the position of each correction coefficient in the standard correction coefficient is consistent with the position of the LED lamp point corresponding to the correction coefficient, when the LED box is spliced into the LED display screen, if the direction of the LED box changes, the position of each correction coefficient in the standard correction coefficient is no longer consistent with the position of the LED lamp point corresponding to the correction coefficient, and if the LED lamp point at the corresponding position in the LED box is still corrected according to the position of each correction coefficient in the standard correction coefficient, the expected correction effect cannot be achieved, the display effect of the LED box is affected, and the display effect of the entire LED display screen is affected. Therefore, after the rotation of the LED box body is monitored, the standard correction coefficient needs to be rotated according to the direction rotation result obtained by the current direction of the LED box body and the standard direction, the current correction coefficient corresponding to the LED box body in the current direction is obtained, and after a display control instruction is received, a display control signal is generated by using the current correction coefficient and display data to control the LED box body to display, so that the correction effect can reach the expected correction effect, the display effect of the LED box body is improved, the display effect of an LED display screen formed by the LED box body is further improved, and the viewing experience of a user is improved.
In another embodiment of the present invention, as shown in fig. 5, the LED box 1 includes a plurality of LED modules 102 and a receiving card 101 connected to the plurality of LED modules 102. The non-volatile storage medium is a storage chip in the receiving card 101 or each LED module. The specific memory chip may be an SPI flash or other memory chips, which is not limited in the present invention, and an SPI (serial peripheral interface) flash, that is, a flash memory device that operates through a serial interface.
In another embodiment of the present invention, if the non-easy-to-vector storage medium is a storage chip in each LED module 102, the method receives the standard correction coefficient of the LED box 1 and the standard direction of the LED box 1 corresponding to the standard correction coefficient sent by the upper computer, and stores the standard correction coefficient and the standard direction in the non-easy-to-vector storage medium of the LED box 1, which includes:
according to a preset standard correction coefficient splitting strategy, the standard correction coefficient is split into a plurality of groups of standard sub-correction coefficients corresponding to the LED modules 102 one by one, and each group of standard sub-correction coefficients and the corresponding standard sub-directions are stored in the corresponding storage chip in the LED module 102.
Specifically, the LED box 1 is composed of a plurality of LED modules 102, and each LED module 102 further includes a plurality of LED light points, so if the standard correction coefficient is stored in the memory chip of the LED module 102, the standard correction coefficient needs to be split according to the LED module 102, and the correction coefficient value corresponding to the LED light point on each LED module 102 is used as a set of standard sub-correction coefficients. Meanwhile, each LED module 102 further stores therein a standard sub-direction corresponding to the standard sub-correction coefficient stored therein. The standard sub-direction is the direction in which the LED module 102 is located when generating the standard sub-correction coefficient.
It can be understood that if the non-volatile storage medium is a receiving card, the standard correction coefficient in the form of a matrix is directly stored in the receiving card, and the standard correction coefficient does not need to be split.
In another embodiment of the present invention, if the non-volatile storage medium is a storage chip in each LED module 102, as shown in fig. 6, calculating a direction rotation result of the LED box according to the current direction and the standard direction, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after the rotation into a dynamic storage area of a receiving card memory of the LED box includes the following steps:
step S201: and respectively comparing the standard sub-direction corresponding to each group of standard sub-correction coefficients with the current direction to obtain a direction rotation result corresponding to each group of standard sub-correction coefficients.
Likewise, in the present embodiment, the direction rotation result corresponding to each set of standard sub-correction coefficients is the angle between the current direction and the standard sub-direction.
Step S202: and respectively rotating each group of standard sub-correction coefficients according to the direction rotation result corresponding to each group of standard sub-correction coefficients to obtain the current sub-correction coefficients.
Step S203: and loading a plurality of groups of current sub-correction coefficients obtained after rotation into a dynamic storage area of the memory of the receiving card of the LED box body for storage.
In this embodiment, since the standard correction coefficients are divided into a plurality of sets of standard sub-correction coefficients, which are stored in different LED modules, each set of standard sub-correction coefficients needs to be read and rotated when the standard correction coefficients are rotated, so as to complete the rotation of the whole standard correction coefficients.
Further, in this embodiment, before each group of standard sub-correction coefficients is rotated, direction rotation results corresponding to each group of standard sub-correction coefficients need to be calculated, in fact, after the LED box is produced, the LED modules in the LED box are fixed, when a plurality of LED boxes are spliced into an LED display screen, if the current direction of the LED box changes compared with the standard direction of the LED box, the direction changes of the LED modules in the LED box are all consistent with the direction changes of the LED box, that is, the direction rotation results corresponding to each group of standard sub-correction coefficients are the same, so that the direction rotation results corresponding to all groups of standard sub-correction coefficients can be obtained by calculating the direction rotation results corresponding to one group of standard sub-correction coefficients without repeated calculation.
In another embodiment of the present invention, based on the above embodiment, the loading the plurality of sets of current sub-correction coefficients obtained after the rotation into the dynamic storage area of the LED box body receiving card memory for storage includes storing each set of current sub-correction coefficients in the dynamic storage area of the LED box body receiving card memory according to the current position sequence or the standard position sequence of the LED module corresponding to the current sub-correction coefficient.
Further, if each group of current sub-correction coefficients is stored in a dynamic storage area of the memory of the receiving card of the LED box body according to the current position sequence of the corresponding LED module:
and sequentially reading the current correction coefficients stored in the dynamic storage area, sequentially reading each group of current sub-correction coefficients according to the position sequence of each group of current sub-correction coefficients stored in the dynamic storage area, splicing to form a complete current correction coefficient, then combining display data to generate a display control signal, and sending the display control signal to an LED drive chip of the LED box body to drive an LED lamp point, so that the display picture of the LED box body is controlled, and the LED screen body consisting of a plurality of LED box bodies can display a complete picture.
Or, if each group of current sub-correction coefficients is stored in the dynamic storage area of the receiving card of the LED box according to the current position sequence of the LED module corresponding to the current sub-correction coefficients, then the multiple groups of current sub-correction coefficients in the dynamic storage area are already spliced to form a complete current correction coefficient (i.e. to form a complete matrix), and the current correction coefficient in the form of a matrix may be straightened, for example, in the matrix, the first row of correction coefficients is: 0.1,0.2,0.3,0.4, the second row correction coefficient is 0.1,0.2,0.3,0.4, the second row correction coefficient can be directly arranged at the end of the first row correction coefficient, the current correction coefficient in the form of a matrix is straightened, the plurality of rows of correction coefficients are deformed into a row, then, each correction coefficient is sequentially read, and each correction coefficient is combined with corresponding display data to generate a display control signal to control the corresponding LED lamp point.
Furthermore, if each group of current sub-correction coefficients is stored in a dynamic storage area of the memory of the receiving card of the LED box body according to the standard position sequence or the random position sequence of the corresponding LED module:
when each group of current sub-correction coefficients needs to be loaded into a dynamic storage area of an internal memory of a receiving card of the LED box body for storage, the storage address of the current sub-correction coefficient corresponding to each LED module in the dynamic storage area is recorded. Reading the current correction coefficient stored in the dynamic storage area at this time includes: and reading each group of current sub-correction coefficients according to the current position sequence of each LED module and the storage address of the current sub-correction coefficient corresponding to each LED module in the dynamic storage area. By reading the current correction coefficient from the dynamic storage area in such a way, a plurality of groups of current sub-correction coefficients can be spliced to form a complete current correction coefficient after reading, then display control signals are generated by combining display data, and the display control signals are sent to LED driving chips of the LED boxes to drive the LED lamp points, so that the LED boxes are controlled to display pictures, and further, the LED screen body formed by a plurality of LED boxes can display complete pictures.
The present invention further provides a rotation apparatus for correction coefficients, as shown in fig. 7, the apparatus includes a receiving module 701, an obtaining module 702, a monitoring module 703, a correction coefficient rotation module 704, and a display control signal generating module 705, wherein:
the receiving module 701 is connected with the display control signal generating module 105 and is used for receiving the standard correction coefficient of the LED box and the standard direction of the LED box corresponding to the standard correction coefficient sent by the upper computer and storing the standard correction coefficient and the standard direction into a non-volatile storage medium of the LED box, the receiving module 701 is further used for receiving a display control instruction sent by the upper computer and sending the display control instruction to the display control signal generating module 705, and the display control instruction comprises a correction coefficient reading instruction and display data;
the obtaining module 702 is connected to the monitoring module 703 and configured to obtain a current direction of the LED box.
The monitoring module 703 is connected to the obtaining module 702 and the correction coefficient rotating module 704, and is configured to monitor whether the LED box rotates in real time, if so, obtain the current direction of the LED box from the obtaining module 702, and calculate a direction rotation result of the LED box according to the current direction and the standard direction;
a correction coefficient rotating module 704, connected to the monitoring module 703 and the display control signal generating module 705, for reading the standard correction coefficient from the non-volatile storage medium, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after rotation into a dynamic storage area of the memory of the receiving card of the LED box;
the display control signal generating module 705 is configured to, after receiving the display control instruction sent by the receiving module, read the current correction coefficient stored in the dynamic storage area according to the correction coefficient reading instruction, generate a display control signal according to the display data and the current correction coefficient, and send the display control signal to an LED driving chip of the LED box to control a display image of the LED box.
The invention also provides an LED display screen which comprises a plurality of LED boxes, wherein each LED box comprises a plurality of LED modules and a receiving card connected with the LED modules, and the receiving card is provided with the rotating device for correcting the coefficient.
The invention also provides computer equipment which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the correction coefficient rotating method when executing the computer program.
According to the rotation method and device of the correction coefficient, the LED display screen and the computer equipment, when the LED box body rotates, the standard correction coefficient stored in the LED box body in advance is rotated according to the rotation angle of the LED box body to obtain the current correction coefficient after rotation, and after a display control instruction sent by an upper computer is received, display control information is generated according to the current correction coefficient and display data to control the LED box body to display, so that the correction effect of the LED box body reaches an expected correction effect, the display effect of the LED box body is improved, and the display effect of the LED screen body consisting of the LED box body is further improved.
The terms and expressions used in the specification of the present invention have been set forth for illustrative purposes only and are not meant to be limiting. It will be appreciated by those skilled in the art that changes could be made to the details of the above-described embodiments without departing from the underlying principles thereof. The scope of the invention is, therefore, indicated by the appended claims, in which all terms are intended to be interpreted in their broadest reasonable sense unless otherwise indicated.
Claims (10)
1. A method of rotating a correction coefficient, the method comprising:
receiving a standard correction coefficient of an LED box body sent by an upper computer and a standard direction of the LED box body corresponding to the standard correction coefficient, and storing the standard correction coefficient and the standard direction into a non-easy-vector storage medium of the LED box body;
monitoring whether the LED box body rotates in real time, if so, acquiring the current direction of the LED box body, and calculating the direction rotation result of the LED box body according to the current direction and the standard direction;
reading the standard correction coefficient from the non-easy-vector storage medium, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after rotation into a dynamic storage area of an internal memory of the LED box body receiving card;
receiving a display control instruction sent by an upper computer, wherein the display control instruction comprises a correction coefficient reading instruction and display data;
and reading the current correction coefficient stored in the dynamic storage area according to the correction coefficient reading instruction, generating a display control signal according to the display data and the current correction coefficient, and sending the display control signal to an LED driving chip of the LED box body to control the display picture of the LED box body.
2. The method for rotating the correction coefficient according to claim 1, wherein the LED box includes a plurality of LED modules and a receiving card connected to the LED modules, and the non-volatile storage medium is a storage chip in the receiving card or each LED module.
3. The method for rotating the correction coefficient according to claim 2, wherein if the non-easy-vector storage medium is a storage chip in each LED module, the receiving a standard correction coefficient of an LED box and a standard direction of the LED box corresponding to the standard correction coefficient sent by an upper computer, and storing the standard correction coefficient and the standard direction in the non-easy-vector storage medium of the LED box comprises:
and splitting the standard correction coefficient into a plurality of groups of standard sub-correction coefficients which are in one-to-one correspondence with the LED modules according to a preset standard correction coefficient splitting strategy, and storing each group of standard sub-correction coefficients and the corresponding standard sub-directions to the corresponding storage chip in the LED module.
4. The method of claim 3, wherein the calculating the direction rotation result of the LED housing according to the current direction and the standard direction, rotating the standard correction coefficient according to the direction rotation result, and storing the current correction coefficient obtained after rotation into a dynamic storage area of a memory of a receiving card of the LED housing comprises:
respectively comparing the standard sub-direction corresponding to each group of standard sub-correction coefficients with the current direction to obtain a direction rotation result corresponding to each group of standard sub-correction coefficients;
respectively rotating each group of standard sub-correction coefficients according to the direction rotation result corresponding to each group of standard sub-correction coefficients to obtain the current sub-correction coefficients;
and loading a plurality of groups of current sub-correction coefficients obtained after rotation into a dynamic storage area of the memory of the LED box body receiving card for storage.
5. The method for rotating correction coefficients according to claim 4, wherein the step of loading and storing the plurality of groups of current sub-correction coefficients obtained after the rotation into the dynamic storage area of the memory of the receiving card of the LED box body comprises the following steps:
and storing each group of current sub-correction coefficients in a dynamic storage area of the LED box body receiving card memory according to the current position sequence or the standard position sequence of the corresponding LED module.
6. The method of rotating a correction coefficient according to claim 5,
if each group of current sub-correction coefficients is stored in a dynamic storage area of the memory of the LED box body receiving card according to the current position sequence of the corresponding LED module, the reading of the current correction coefficients stored in the dynamic storage area comprises: sequentially reading each group of current sub-correction coefficients according to the position sequence of each group of current sub-correction coefficients stored in the dynamic storage area, or straightening the current correction coefficients stored in the dynamic storage area, and reading the current sub-correction coefficients according to the sequence after straightening;
if each group of current sub-correction coefficients are stored in a dynamic storage area of an internal memory of the LED box body receiving card according to the standard position sequence of the corresponding LED module, when each group of current sub-correction coefficients are loaded into the dynamic storage area in the internal memory of the LED box body receiving card for storage, the storage address of the current sub-correction coefficient corresponding to each LED module in the dynamic storage area is recorded, and the reading of the current correction coefficient stored in the dynamic storage area comprises the following steps: and reading each group of current sub-correction coefficients according to the current position sequence of each LED module and the storage address of the current sub-correction coefficient corresponding to each LED module in the dynamic storage area.
7. The method of rotating a correction coefficient according to claim 1, wherein the direction rotation result is an angular difference between the current direction and the standard direction.
8. The utility model provides a rotary device of correction coefficient, its characterized in that, the device includes receiving module, obtains module, monitoring module, correction coefficient rotation module and display control signal generation module, wherein:
the receiving module is connected with the display control signal generating module and used for receiving a standard correction coefficient of the LED box body sent by an upper computer and a standard direction of the LED box body corresponding to the standard correction coefficient and storing the standard correction coefficient and the standard direction into a non-vector-prone storage medium of the LED box body, the receiving module is also used for receiving a display control instruction sent by the upper computer and sending the display control instruction to the display control signal generating module, and the display control instruction comprises a correction coefficient reading instruction and display data;
the acquisition module is connected with the monitoring module and used for acquiring the current direction of the LED box body;
the monitoring module is connected with the acquisition module and the correction coefficient rotation module and is used for monitoring whether the LED box body rotates in real time, if so, acquiring the current direction of the LED box body from the acquisition module, and calculating the direction rotation result of the LED box body according to the current direction and the standard direction;
the correction coefficient rotating module is connected with the monitoring module and the display control signal generating module and used for reading the standard correction coefficient from the non-easy-to-vector storage medium, rotating the standard correction coefficient according to the direction rotating result and storing the current correction coefficient obtained after rotation into a dynamic storage area of an internal memory of the receiving card of the LED box body;
the display control signal generation module is used for reading a current correction coefficient stored in the dynamic storage area according to the correction coefficient reading instruction after receiving a display control instruction sent by the receiving module, generating a display control signal according to the display data and the current correction coefficient, and sending the display control signal to an LED drive chip of the LED box body so as to control a display picture of the LED box body.
9. An LED display screen, characterized in that, includes a plurality of LED boxes, every including a plurality of LED modules and the receiving card that is connected with a plurality of LED modules in the LED box, be provided with the rotary device of correction coefficient as claim 8 on the receiving card.
10. A computer device, characterized by comprising a memory in which a computer program is stored and a processor which, when executing the computer program, implements the correction coefficient rotation method steps of any one of claims 1 to 7.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201975047U (en) * | 2010-11-05 | 2011-09-14 | 深圳利亚德光电有限公司 | Intelligent storage system and LED (light-emitting diode) display panel and display thereof |
| US20140300937A1 (en) * | 2013-04-08 | 2014-10-09 | Samsung Display Co., Ltd. | Organic light emitting display device and driving method thereof |
| CN106652890A (en) * | 2017-03-13 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card, LED display screen control system and image data processing method |
| WO2017206392A1 (en) * | 2016-06-01 | 2017-12-07 | 中兴通讯股份有限公司 | Image correction method and device, and projector |
| CN108320696A (en) * | 2018-01-08 | 2018-07-24 | 深圳市奥拓电子股份有限公司 | Whole screen bearing calibration, correction system and the storage medium of LED display |
| CN109215565A (en) * | 2018-09-21 | 2019-01-15 | 华中科技大学 | A kind of reception card, data storage dispatching method and LED display control program |
| CN111986613A (en) * | 2019-05-22 | 2020-11-24 | 西安诺瓦星云科技股份有限公司 | Display correction method and device, display correction system and computer readable medium |
| CN112233570A (en) * | 2020-12-16 | 2021-01-15 | 卡莱特（深圳）云科技有限公司 | Arc screen correction method and device, computer equipment and storage medium |
| CN112259031A (en) * | 2019-07-02 | 2021-01-22 | 西安诺瓦星云科技股份有限公司 | Method, device and system for correcting correction coefficient of display screen and computer readable medium |
| CN112634819A (en) * | 2020-12-23 | 2021-04-09 | 深圳市艾比森光电股份有限公司 | Correction method and related device for LED display screen |
-
2021
- 2021-04-25 CN CN202110448192.2A patent/CN113380183B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201975047U (en) * | 2010-11-05 | 2011-09-14 | 深圳利亚德光电有限公司 | Intelligent storage system and LED (light-emitting diode) display panel and display thereof |
| US20140300937A1 (en) * | 2013-04-08 | 2014-10-09 | Samsung Display Co., Ltd. | Organic light emitting display device and driving method thereof |
| WO2017206392A1 (en) * | 2016-06-01 | 2017-12-07 | 中兴通讯股份有限公司 | Image correction method and device, and projector |
| CN106652890A (en) * | 2017-03-13 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card, LED display screen control system and image data processing method |
| CN108320696A (en) * | 2018-01-08 | 2018-07-24 | 深圳市奥拓电子股份有限公司 | Whole screen bearing calibration, correction system and the storage medium of LED display |
| CN109215565A (en) * | 2018-09-21 | 2019-01-15 | 华中科技大学 | A kind of reception card, data storage dispatching method and LED display control program |
| CN111986613A (en) * | 2019-05-22 | 2020-11-24 | 西安诺瓦星云科技股份有限公司 | Display correction method and device, display correction system and computer readable medium |
| CN112259031A (en) * | 2019-07-02 | 2021-01-22 | 西安诺瓦星云科技股份有限公司 | Method, device and system for correcting correction coefficient of display screen and computer readable medium |
| CN112233570A (en) * | 2020-12-16 | 2021-01-15 | 卡莱特（深圳）云科技有限公司 | Arc screen correction method and device, computer equipment and storage medium |
| CN112634819A (en) * | 2020-12-23 | 2021-04-09 | 深圳市艾比森光电股份有限公司 | Correction method and related device for LED display screen |
Non-Patent Citations (1)
| Title |
|---|
| 陈荣峰等: "动态配置LED显示系统探析", 《轻工科技》 * |
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