CN110677945A - Synchronous terminal, LED light synchronous control method and system - Google Patents
Synchronous terminal, LED light synchronous control method and system Download PDFInfo
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Abstract
The invention relates to a synchronous terminal, and a method and a system for synchronously controlling LED light, wherein the method comprises the following steps: acquiring picture data, a playing time parameter and a light arrangement picture, wherein the picture data comprises a plurality of frames of pictures; calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting map; calculating a playing time table of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time table in association with each frame of picture working data; reading and sending the picture working data of the corresponding time frame according to the playing time table; and at the preset time, transmitting the picture working data of the frame corresponding to the time and transmitting the picture working data of the ending frame. And the synchronization of most of picture frames is ensured through a play time table calculated based on the synchronized local time. By sending the picture working data of the ending frame in advance, even if the data is lost at the moment of the ending frame, the picture at the moment of the ending frame and the picture behind the moment of the ending frame can be synchronized, and the problem of asynchronous ending frame is avoided.
Description
Technical Field
The invention relates to the field of LED light control, in particular to a synchronous control method and system of LED light, a synchronous terminal and a storage medium.
Background
Because the LED has the characteristics of low energy consumption, high brightness, high refresh rate and the like, the LED is widely applied to the fields of display, illumination, backlight sources and the like. In landscape lighting and urban lightening, the LED can bring comfortable visual perception and good artistic aesthetic feeling, and is rapidly developed in recent years.
Typically, a city lighting project is very large in scale and widely distributed, and may include tens of thousands of square meters, or even hundreds of thousands of square meters of exterior wall facades. In the urban lighting project of such scale, generally, the display of the whole display picture can be realized by dividing the urban lighting project into a plurality of relatively independent control subsystems and performing combined synchronous control on the control subsystems. However, the conventional brightening control system has the problems of screen blockage and unsynchronized sub-area screens. Especially, at the end of a picture, if the last frame is lost in a certain area, when and after the playing is stopped, the playing asynchronism can be obviously perceived, and the picture synchronization effect is seriously influenced. The requirement of users for the display effect of the lighting engineering is higher and higher, and how to ensure that each control subsystem plays the pictures of the same frame at the same time, especially to ensure the synchronization of the ending frames, is a problem to be solved urgently.
Disclosure of Invention
Therefore, it is necessary to provide a synchronous terminal, a method and a system for synchronous control of LED lights, aiming at the problems of picture blocking and picture asynchronism existing in the existing urban lighting control system.
An embodiment of the present invention provides a method for synchronous control of LED lighting, which is used for data transmission control between a synchronous terminal and a controller, and includes:
acquiring picture data, a playing time parameter and a light arrangement picture, wherein the picture data comprises a plurality of frames of pictures;
calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting map;
calculating a playing time table of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time table in association with each frame of picture working data;
reading and sending the picture working data of the corresponding time frame according to the playing time table;
and at the preset time, transmitting the picture working data of the frame corresponding to the time and transmitting the picture working data of the ending frame.
In some embodiments, the preset time is determined as follows:
at the statistical moment, acquiring the sending completion time of the previous picture working data, and calculating the sending overtime ratio; and determining the preset time by using the sending overtime ratio and the remaining time in the play schedule.
In some embodiments, the preset time includes a plurality of times, and the preset times are set independently corresponding to different controllers.
In some embodiments, before the step of calculating a playing time table of each frame of picture according to the synchronized local time and the playing time parameter and storing the playing time table in association with the working data of each frame of picture, the method further includes:
the local time is synchronized.
In some embodiments, the method further comprises, after the end frame time instant, transmitting end frame identification data.
An embodiment of the present invention provides a synchronization terminal for synchronous control of LED lights, including:
the device comprises an acquisition unit, a display unit and a control unit, wherein the acquisition unit is used for acquiring picture data, a playing time parameter and a light arrangement picture, and the picture data comprises a plurality of frames of pictures;
the working data processing unit is used for calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting arrangement picture;
the time schedule unit is used for calculating the playing time schedule of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time schedule in association with the working data of each frame of picture;
the sending unit is used for reading and sending the picture working data of the corresponding time frame according to the playing time table;
and the ending frame synchronizing unit is used for transmitting the picture working data of the ending frame while transmitting the picture working data of the corresponding time frame at the preset time.
In some embodiments, a synchronization unit is further included for synchronizing the local time.
In some embodiments, an end frame holding unit is further included for transmitting end frame identification data after the end frame time instant.
The invention provides an LED light synchronous control system which comprises a server, a plurality of synchronous terminals, a plurality of controllers and LED light bars, wherein the server is in communication connection with the synchronous terminals, each synchronous terminal is in communication connection with the controllers, each controller is in communication connection with the LED light bars, the LED light bars are arranged in a preset shape, and the synchronous terminals are the synchronous terminals in any one of the preceding aspects; and the controller is used for controlling the LED lamp strip to work and storing the picture working data of the ending frame when the picture working data of the ending frame is received before the ending frame moment.
An embodiment of the present invention further provides a machine-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the LED light synchronization control method according to any one of the preceding claims.
By setting respective timetables based on synchronous local time calculation for each frame of picture, the timetables of all synchronous terminals are ensured to be the same, and the synchronization of most picture frames can be ensured. By sending the picture working data of the ending frame in advance at the preset moment, even if the picture working data of the ending frame is lost between the synchronous terminal and the controller, the controller can immediately utilize the picture working data of the ending frame received in advance after the moment of the ending frame to control the LDE lamp bar to display the picture of the ending frame, so that the picture of the ending frame and the picture after the moment of the ending frame are completely synchronous, and the problem of asynchronization when the ending frame is lost is avoided.
Drawings
Fig. 1 is a schematic diagram of an LED light synchronization control system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an LED light synchronous control system according to an embodiment of the present invention;
fig. 3 is a flowchart of an LED light synchronization control method according to an embodiment of the present invention;
fig. 4 is a flowchart of an LED light synchronous control method according to another embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In an LED light synchronous control system, as shown in fig. 1 and fig. 2, the LED light synchronous control system includes a server 10, a plurality of synchronous terminals 20, a plurality of controllers 30, and LED light bars 40, the server 10 is in communication connection with the plurality of synchronous terminals 20, each synchronous terminal 20 is in communication connection with the plurality of controllers 30, each controller 30 is in communication connection with the plurality of LED light bars 40, and all the LED light bars 40 are arranged in a preset shape.
In order to ensure that the LED light bars 40 controlled by each synchronization terminal 20 synchronously display the pictures of the same frame, in the present application, each synchronization terminal 20 generates a schedule of each frame of picture according to the synchronized local time, and sends the picture data of the corresponding time frame to the controller 30 according to the schedule; and analyzing the sending time of the picture data of each frame, and reducing the size of the preset sending interval when the sending time exceeds the preset time so as to ensure that the sending time and the sending completion time of the picture data of each frame are basically the same in each synchronous terminal 20, thereby realizing that the LED light bars 40 controlled by all the synchronous terminals 20 synchronously display the pictures of the same frame. The following describes the embodiments of the present application in detail.
As shown in fig. 3, an embodiment of the present application provides an LED light synchronization control method for synchronizing data transmission control between a terminal and a controller, including:
s100, acquiring picture data, playing time parameters and a lighting arrangement diagram, wherein the picture data comprises a plurality of frames of pictures.
The LED light synchronization control method of the present embodiment is executed by the synchronization terminal 20. The picture data refers to the picture content of the corresponding area of the LED light bar 40 controlled by the synchronous terminal 20, and may include several frames of pictures. The playing time parameter mainly includes a playing period, and may further include a frame rate and other control parameters. The lighting map includes the connection relationship between the controller 30 and the LED light bar 40, and may further include the position of the LED light bar 40 in a predetermined shape.
In step S100, the sync terminal 20 may directly acquire the picture data and the play time parameter from the server 10. At this time, the server 10 may divide the entire program file to obtain the picture data corresponding to each of the sync terminals 20. The complete program file includes the picture data of all the sync terminals 20, which is complete picture data of the entire area.
In addition to the division of the program file by the server 10, the synchronization terminal 20 may divide the program file by itself to obtain screen data belonging to itself. In this case, step S100 may specifically include: the synchronous terminal 20 acquires the complete program file, the playing time parameter and the light arrangement diagram from the server 10; the synchronous terminal 20 divides the complete program file according to the lighting map to obtain the picture data.
The division of the complete program file by the synchronization terminal 20 may also be performed without the aid of a lighting map. The synchronous terminal 20 can obtain the complete program file, the playing time parameter and the area data of the synchronous terminal 20 from the server 10; the sync terminal 20 intercepts picture data from the complete program file according to the region data. In this case, the program file does not need to be divided according to the lighting map.
It is understood that the synchronization terminal 20 may obtain the lighting arrangement map from the server 10, or may store the lighting arrangement map itself.
S200, calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting map.
After the synchronous terminal 20 obtains the picture data, the picture working data corresponding to each pixel point on the LED light bar can be calculated accordingly. The picture data includes a plurality of frames. For each frame of picture, the data mapped to each pixel point can be determined according to the lighting map. Because every pixel actually comprises LED lamp pearl, consequently, can also further convert the required work data of LED lamp pearl work into. The working data of all the pixel points of the LED light bar controlled by each synchronization terminal 20 form the picture working data of each frame of picture.
It can be understood that each pixel point can be composed of a single-color LED lamp bead, and also can be composed of three or more LED lamp beads.
And S300, calculating a playing time table of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time table in association with the working data of each frame of picture.
The synchronous terminal 20 can calculate the playing time table of each frame of picture, i.e. the specific and accurate playing time of each frame of picture, according to the synchronized local time and the playing time parameter. Then, the play schedule is associated with the picture operation data for each frame and then stored in the memory so as to be directly read at the time of actual play without recalculation.
In calculating the play schedule, the local time used is the synchronized local time. In this way, it is possible to ensure time synchronization of all the synchronization terminals 20, and to ensure that the play schedules calculated therefrom are the same.
The local time synchronization of the synchronization terminal 20 may be performed in step S300 or before step S300, that is, each time the play schedule is calculated, the local time may be synchronized first; before step S100, as shown in fig. 4, step S010: the local time is synchronized.
The synchronization of the local time may be performed by one of the methods such as GPS time synchronization, network time service, and time synchronization by a mobile communication base station. Preferably, the synchronization terminal 20 synchronizes the local time by using a time synchronization method based on a mobile communication base station.
And S400, reading and sending the picture working data of the corresponding time frame according to the playing time table.
According to the play schedule, the synchronous terminal 20 reads the picture working data of the corresponding time frame at the preset time and sends the data to the outside. The picture operation data corresponding to the time frame may include only one frame of picture operation data, or may include multiple frames of picture operation data. The picture working data of the corresponding time frame to be transmitted can be packed into a data packet, such as a UDP data packet. In addition to the frame work data of each frame, the data packet may further include address data, port number, channel number, and the like of the controller 30, so as to help the controller 30 quickly obtain the data corresponding to itself from the data packet.
Generally, the transmission of the data packets may be performed in a broadcast form or in an on-demand form. When broadcasting is used, the picture operation data of all the controllers 30 is packed into one packet and then broadcast to all the controllers 30. When the on-demand broadcasting is adopted, the picture working data of the corresponding time frame can be divided to obtain the picture working data belonging to each or a plurality of controllers 30, and the picture working data are respectively packed into a data packet and then sent to the corresponding controller 30 point to point.
The transmission of the screen work data for each frame has a preset transmission interval so that the controller 30 can effectively distinguish the screen work data for each frame when receiving the data. For example, when the picture working data of a preset time frame only includes picture working data of multiple frames, in a data packet obtained by correspondingly packaging, a bit corresponding to a preset sending interval length may be set after the picture working data of each frame; when the frame work data of the preset time frame only includes the frame work data of one frame, the preset transmission interval may be a transmission time interval of adjacent data packets.
In order to improve the execution efficiency of step S400, the synchronization terminal 20 may read the frame work data of several frames from the memory in advance according to the play schedule, and store the frame work data in the buffer. The buffer can be a Cache memory or a buffer on the memory. In this way, by caching the data in advance, the time for the central processing unit of the synchronous terminal 20 to read the data from the memory device is reduced, and especially when a large amount of data is processed, the delay influence of the time consumed by reading the data on the subsequent transmission can be reduced.
And S500, at the preset moment, sending the picture working data of the corresponding moment frame and sending the picture working data of the ending frame.
In the process of sending the frame work data, when the preset time is reached, the synchronization terminal 20 sends not only the frame work data of the time frame corresponding to the current time, but also the frame work data of the last frame. That is, when the end frame time is not reached, the picture operation data of the end frame is transmitted in advance. The controller 30 stores the frame work data of the end frame when the end frame time is not reached and the frame work data of the end frame is received, so that after the end frame time is reached, even if the frame work data of the end frame is lost between the synchronous terminal 20 and the controller 30, the controller 30 can immediately control the LDE light bar to display the frame of the end frame after the end frame time, the frame after the end frame time is completely synchronous, and the problem of display asynchronization when the end frame is lost is avoided.
The synchronous terminal 20 and the controller 30 may communicate with each other through a single data link or through a dual data link. When a single data link is used for communication, the picture working data of the ending frame and the picture working data of the corresponding time frame at the preset time can be packed into a data packet. In order to reduce the influence of the simultaneous transmission of the frame work data of the last frame on the communication delay, it is preferable that the synchronous terminal 20 and the controller 30 communicate with each other by using a dual data link, the main data link transmits the frame work data of the corresponding time frame at the current time, and the data link transmits the frame work data of the last frame.
The preset time may be a time, or a time period obtained by adding a preset time length to a specific reference time. Preferably, the preset time is a time period obtained by adding a preset time length to the specific reference time. Therefore, the frame working data of the ending frame can be repeatedly sent at the preset time, and even if part of the frame working data is lost, the frame working data of the ending frame can be ensured to be sent out smoothly and reach the controller 30.
The preset time can be directly set, or can be determined by counting the sending time data of the previous screen working data. Each synchronization terminal 20 is in communication connection with a plurality of controllers 30, and when the preset time is set, a uniform and single preset time may be set for all the controllers 30 corresponding to the synchronization terminal 20, or respective and independent preset times may be set for each controller 30, that is, the preset time includes a plurality of times. In some embodiments, the sync terminal 20 communicates with the controllers 30 in an on-demand manner, when sending the frame work data corresponding to the time frame, the frame work data corresponding to each controller 30 may be an individual data packet, a respective independent preset time is set corresponding to each controller 30, and at the preset time corresponding to a certain controller 30, the frame work data corresponding to the time frame is sent while the frame work data corresponding to the end frame is sent. That is, the different controllers 30 may not receive the time of the frame work data of the end frame.
When the preset time is determined by using the sending time data of the picture working data before counting, the sending completion time of the picture working data before all the controllers 30 or each controller 30 corresponding to the synchronous terminal 20 can be obtained at a preset certain counting time, and the sending timeout proportion is calculated; and then, determining the preset time by using the sending overtime ratio and the remaining time in the play schedule.
For example, the product of the timeout proportion and the remaining time in the playing time table is sent, and the single or other times of the product may be used as the preset time length in the preset time, and the specific reference time in the preset time may be the time in the playing time table, which is apart from the end frame time by the preset time length obtained by the previous calculation. It is understood that a specific reference time in the preset time may also be set, as long as the preset time does not exceed the end frame time.
When the preset time is determined by using the sending time data of the picture working data before counting, the sending timeout proportion of all the controllers 30 or each controller 30 corresponding to the synchronous terminal 20 can be calculated in real time, then the preset time length in the preset time is determined by using the sending timeout proportion and the playing time length, and further the specific reference time is determined according to the ending frame to obtain the preset time.
It is to be understood that the picture working data of the end frame may have end frame identification data by which the controller 30 can recognize the picture working data of the end frame. The controller 30 may also feed back information to the synchronization terminal 20 when receiving the frame work data of the end frame, and the synchronization terminal 20 may not execute step S500 after receiving the feedback information.
The control method provided by this embodiment sets a respective time schedule for each frame of picture, which is calculated based on the synchronized local time, so as to ensure that the time schedules of all synchronized terminals are the same, and ensure synchronization of most of the picture frames. By sending the frame work data of the ending frame in advance at the preset time, even if the frame work data of the ending frame is lost between the synchronous terminal 20 and the controller 30, the controller 30 can immediately utilize the frame work data of the ending frame received in advance after the ending frame time to control the LDE light bar to display the frame of the ending frame, so that the frame time and the frame after the ending frame time are completely synchronous, and the problem of asynchronization when the ending frame is lost is avoided.
In some embodiments, the LED light synchronous control method may further include:
s600, after the ending frame time, the ending frame identification data is sent.
The sync terminal 20 can continue to transmit data after the end frame time, and the controller 30 can keep displaying the frame of the end frame. At this time, in order to reduce the amount of data between the synchronization terminal 20 and the controller 30, only the end frame identification data may be included in the data transmitted by the synchronization terminal 20. After receiving the ending frame identification data, the controller 30 may directly read the stored picture working data of the ending frame to control the LED light bar to work. Therefore, the complete synchronization of the pictures after the ending frame time can be further ensured, and the problem of asynchronous loss of the ending frame is avoided.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
An embodiment of the present invention provides a synchronization terminal 20, configured to perform LED light synchronization control, including:
the device comprises an acquisition unit, a display unit and a control unit, wherein the acquisition unit is used for acquiring picture data, a playing time parameter and a light arrangement picture, and the picture data comprises a plurality of frames of pictures;
the working data processing unit is used for calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting arrangement picture;
the time schedule unit is used for calculating the playing time schedule of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time schedule in association with the working data of each frame of picture;
the sending unit is used for reading and sending the picture working data of the corresponding time frame according to the playing time table;
and the ending frame synchronizing unit is used for transmitting the picture working data of the ending frame while transmitting the picture working data of the corresponding time frame at the preset time.
The specific working modes of the obtaining unit, the working data processing unit, the schedule unit, the sending unit and the end frame synchronizing unit may refer to the description in the foregoing embodiments, and are not described herein again.
Therefore, the respective timetables calculated based on the synchronized local time are set for each frame, so that the timetables of all the synchronous terminals are ensured to be the same, and the synchronization of most frame of the frame can be ensured. By sending the frame work data of the ending frame in advance at the preset time, even if the frame work data of the ending frame is lost between the synchronous terminal 20 and the controller 30, the controller 30 can immediately utilize the frame work data of the ending frame received in advance after the ending frame time to control the LDE light bar to display the frame of the ending frame, so that the frame time and the frame after the ending frame time are completely synchronous, and the problem of asynchronization when the ending frame is lost is avoided.
In some embodiments, the synchronization terminal 20 may further include a synchronization unit for synchronizing the local time. The synchronization of the local time may be performed by one of the methods such as GPS time synchronization, network time service, and time synchronization by a mobile communication base station. Preferably, the synchronization unit synchronizes the local time by using a time synchronization method based on the mobile communication base station.
In some embodiments, the synchronization terminal 20 may further include an end frame holding unit configured to transmit end frame identification data after the end frame time. In this way, the amount of data transmitted after the end frame time can be reduced.
An embodiment of the present invention further provides an LED light synchronization control system, as shown in fig. 1 and fig. 2, including a server 10, a plurality of synchronization terminals 20, a plurality of controllers 30, and LED light bars 40, where the server 10 is in communication connection with the plurality of synchronization terminals 20, each synchronization terminal 20 is in communication connection with the plurality of controllers 30, each controller 30 is in communication connection with the plurality of LED light bars 40, and all the LED light bars 40 are arranged in a preset shape. The synchronization terminal 20 may be any of the synchronization terminals described in the foregoing embodiments; when the controller 30 receives the picture operation data of the ending frame, it stores the picture operation data of the ending frame.
The server 10 may send data, such as picture data or complete program files, playing time parameters, etc., to each of the sync terminals 20, and may further include a lighting map or area data of the sync terminal, etc.
The synchronous terminal 20 receives the data, processes the data according to the scheme described in the foregoing embodiment, and then sends the screen work data to the controller 30. The sync terminal 20 may transmit the data packet to the controller 30 in a broadcast form or in an on-demand form.
The controller 30 receives the frame work data of each frame and controls the LED light bar 40 to work. The controller 30 may be a DMX512 controller, or may be another controller capable of controlling the LED lamp to operate.
Before the ending frame time, when the controller 30 receives the picture working data of the ending frame, the picture working data of the ending frame is not processed immediately, the LED light bar is not controlled to display the ending frame according to the picture working data, but the picture working data of the ending frame is stored for use at the ending frame time and later, so that even if the picture working data of the ending frame is lost at the ending frame time, the stored picture working data of the ending frame can be used at the ending frame time, and the picture synchronization at the ending frame time is ensured.
When the sync terminal 20 has an end frame holding unit, the controller 30 may directly read the stored picture working data of the end frame and hold the picture of the end frame to be displayed, according to the received end frame identification data, after the end frame time.
The synchronization terminal 20 sets a respective time schedule for each frame of picture, which is calculated based on the synchronized local time, so that the time schedules of all the synchronization terminals are the same, and the synchronization of most of the picture frames can be ensured. By sending the frame work data of the ending frame in advance at the preset time, even if the frame work data of the ending frame is lost between the synchronous terminal 20 and the controller 30, the controller 30 can immediately utilize the frame work data of the ending frame received in advance after the ending frame time to control the LDE light bar to display the frame of the ending frame, so that the frame time and the frame after the ending frame time are completely synchronous, and the problem of asynchronization when the ending frame is lost is avoided.
An embodiment of the present invention further provides a machine-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the LED light synchronization control method according to any one of the above embodiments.
The system/computer device integrated components/modules/units, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
In the several embodiments provided in the present invention, it should be understood that the disclosed system and method may be implemented in other ways. For example, the system embodiments described above are merely illustrative, and for example, the division of the components is only one logical division, and other divisions may be realized in practice.
In addition, each functional module/component in each embodiment of the present invention may be integrated into the same processing module/component, or each module/component may exist alone physically, or two or more modules/components may be integrated into the same module/component. The integrated modules/components can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional modules/components.
It will be evident to those skilled in the art that the embodiments of the present invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention are capable of being embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units, modules or means recited in the system, apparatus or terminal claims may also be implemented by one and the same unit, module or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A synchronous control method of LED light is used for data transmission control between a synchronous terminal and a controller, and is characterized by comprising the following steps:
acquiring picture data, a playing time parameter and a light arrangement picture, wherein the picture data comprises a plurality of frames of pictures;
calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting map;
calculating a playing time table of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time table in association with each frame of picture working data;
reading and sending the picture working data of the corresponding time frame according to the playing time table;
and at the preset time, transmitting the picture working data of the frame corresponding to the time and transmitting the picture working data of the ending frame.
2. The LED lamp light synchronous control method according to claim 1, wherein the preset time is determined as follows:
at the statistical moment, acquiring the sending completion time of the previous picture working data, and calculating the sending overtime ratio; and determining the preset time by using the sending overtime ratio and the remaining time in the play schedule.
3. The LED light synchronous control method according to claim 2, wherein the preset time comprises a plurality of times, and the preset times which are independent of each other are set corresponding to different controllers.
4. The LED light synchronization control method according to claim 1, wherein before the step of calculating the playing schedule of each frame of picture according to the synchronized local time and playing time parameters and storing the playing schedule in association with the working data of each frame of picture, the method further comprises:
the local time is synchronized.
5. The LED light synchronization control method of claim 1, further comprising sending end frame identification data after the end frame time.
6. The utility model provides a synchronous terminal for LED light synchro control, its characterized in that includes:
the device comprises an acquisition unit, a display unit and a control unit, wherein the acquisition unit is used for acquiring picture data, a playing time parameter and a lighting arrangement picture, and the picture data comprises a plurality of frames of pictures;
the working data processing unit is used for calculating the picture working data mapped to each pixel point according to each frame of picture and the lighting arrangement picture;
the time schedule unit is used for calculating the playing time schedule of each frame of picture according to the synchronized local time and the playing time parameter, and storing the playing time schedule in association with the working data of each frame of picture;
the sending unit is used for reading and sending the picture working data of the corresponding time frame according to the playing time table;
and the ending frame synchronizing unit is used for transmitting the picture working data of the ending frame while transmitting the picture working data of the corresponding time frame at the preset time.
7. The synchronizing terminal according to claim 6, characterized by further comprising a synchronizing unit for synchronizing the local time.
8. The synchronous terminal according to claim 6, further comprising an end frame holding unit for transmitting end frame identification data after an end frame time instant.
9. An LED light synchronous control system comprises a server, a plurality of synchronous terminals, a plurality of controllers and LED light bars, wherein the server is in communication connection with the synchronous terminals, each synchronous terminal is in communication connection with the plurality of controllers, each controller is in communication connection with the plurality of LED light bars, and the LED light bars are arranged into preset shapes;
and the controller is used for controlling the LED lamp strip to work and storing the picture working data of the ending frame when the picture working data of the ending frame is received before the ending frame moment.
10. A machine readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the LED light synchronization control method of any one of claims 1 to 5.
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