CN115602101A - Parameter data transmission method, receiving device, sending device and transmission system for LED display screen - Google Patents

Parameter data transmission method, receiving device, sending device and transmission system for LED display screen Download PDF

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Publication number
CN115602101A
CN115602101A CN202211304482.0A CN202211304482A CN115602101A CN 115602101 A CN115602101 A CN 115602101A CN 202211304482 A CN202211304482 A CN 202211304482A CN 115602101 A CN115602101 A CN 115602101A
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China
Prior art keywords
display screen
led display
screen parameter
parameter data
parameter
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CN202211304482.0A
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Inventor
陈春根
范刚
王化锋
陈鸣
许世健
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Shanghai Sansi Technology Co Ltd
Shanghai Sansi Electronic Engineering Co Ltd
Jiashan Sansi Photoelectric Technology Co Ltd
Pujiang Sansi Optoelectronics Technology Co Ltd
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Shanghai Sansi Technology Co Ltd
Shanghai Sansi Electronic Engineering Co Ltd
Jiashan Sansi Photoelectric Technology Co Ltd
Pujiang Sansi Optoelectronics Technology Co Ltd
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Application filed by Shanghai Sansi Technology Co Ltd, Shanghai Sansi Electronic Engineering Co Ltd, Jiashan Sansi Photoelectric Technology Co Ltd, Pujiang Sansi Optoelectronics Technology Co Ltd filed Critical Shanghai Sansi Technology Co Ltd
Priority to CN202211304482.0A priority Critical patent/CN115602101A/en
Publication of CN115602101A publication Critical patent/CN115602101A/en
Pending legal-status Critical Current

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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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

The invention provides a method, a device and a system for transmitting parameter data of an LED display screen. The invention not only can effectively improve the transmission speed of the parameters and the firmware of the display screen, but also can reduce the assembly and debugging time of the display screen, thereby improving the parameter change response speed of the LED display screen and optimizing the user experience.

Description

Parameter data transmission method, receiving device, sending device and transmission system for LED display screen
Technical Field
The invention relates to the field of LED display, in particular to a method, a receiving device, a sending device and a transmission system for transmitting parameter data of an LED display screen.
Background
Before the LED display screen is put into use, a customized debugging process provided by an LED display screen manufacturer or supplier is usually required, and the process usually consists of the following operations: firmware upgrading of a sending card and a receiving card, layout configuration of an LED display screen, chassis parameter configuration of the LED display screen and pixel-by-pixel correction of the LED display screen.
The traditional LED display screen configuration is that the upper end control software is communicated with the MCU in the transmitting card and the receiving card of the LED display screen or the soft core in the FPGA, is limited by the main frequency, the task scheduling algorithm and the communication protocol of the MCU, and cannot fully utilize the communication bandwidth between the transmitting device and the receiving device, for example, in the LED display screen composition taking a gigabit network as a main communication medium, the 1000-megabyte bandwidth utilization rate may be only 1M. In addition, in the firmware upgrading operation of the sending card or the receiving card, because the number of the receiving cards is large, the traditional upgrading mode is point-to-point upgrading, so that the same data packet is redundantly transmitted for many times, and the transmission bandwidth is extremely wasted.
And with the smaller and smaller pixel point interval of the LED display screen and the increase of the number of the machine cases for splicing the large screen, the time consumption of the debugging stage is increased, and the labor cost is increased. Meanwhile, the above conditions may also cause slow response of the LED display screen after parameter adjustment in the use stage and inconsistent response of the chassis, resulting in poor user's perception.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method, a receiving device, a sending device and a transmission system for transmitting parameter data of an LED display screen, which are used to solve the above technical problems occurring in the prior art.
In order to achieve the above and other related objects, the present invention provides a method for transmitting parameter data of an LED display screen, which is applied to a parameter receiving device of the LED display screen, and comprises: the FPGA module is connected with the MCU module, and the method comprises the following steps: establishing communication connection with an LED display screen parameter sending device; and the FPGA module receives and verifies the LED display screen parameter data from the LED display screen parameter transmitting device, and the MCU module or the FPGA module is adopted to process the successfully verified LED display screen parameter data.
In an embodiment of the present invention, the LED display screen parameter receiving device is an LED display screen sending card or an LED display screen receiving card; and each LED display screen sending card is connected with one or more LED display screen receiving cards.
In an embodiment of the present invention, the method includes: receiving and verifying the LED display screen parameter data from the LED display screen parameter sending device by the FPGA module; and the FPGA module directly processes the successfully verified LED display screen parameter data.
In an embodiment of the present invention, the method includes: the MCU module receives a parameter transmission request from the LED display screen parameter transmitting device and replies allowable parameter transmission information to the LED display screen parameter transmitting device so that the LED display screen parameter transmitting device can repeatedly transmit the LED display screen parameter data; receiving, by the FPGA module, LED display screen parameter data from the LED display screen parameter sending device; when the MCU module receives a data verification request transmitted by the LED display screen parameter transmitting device after the LED display screen parameter data is transmitted, the FPGA module is informed of the data verification request; the FPGA module carries out data verification on the received LED display screen parameter data and informs the MCU module when the LED display screen parameter data which are successfully verified are received; the MCU module sends a verification success notice to the LED display screen parameter sending device so that the LED display screen parameter sending device sends a transmission completion instruction; and when the MCU module receives the transmission completion instruction, the MCU module processes the successfully verified LED display screen parameter data.
In an embodiment of the present invention, the MCU module receives a parameter transmission request from the LED display screen parameter transmitter; the FPGA module receives LED display screen parameter data which are repeatedly sent by the LED display screen parameter sending device after the parameter transmission request interval is sent for a first set time, and data verification is carried out; and when the MCU module receives a transmission completion instruction sent by the LED display screen parameter sending device after the LED display screen parameter data transmission device finishes sending the second set time, the MCU module processes the LED display screen parameter data which are successfully verified.
In order to achieve the above and other related objects, the present invention provides a method for transmitting parameter data of an LED display screen, which is applied to a device for sending parameters of the LED display screen, the method comprising: establishing communication connection with one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the FPGA module is connected with the MCU module; and sending the LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device so that each FPGA module can receive and check the LED display screen parameter data, and processing the successfully checked LED display screen parameter data by adopting the corresponding MCU module or the corresponding FPGA module.
In an embodiment of the present invention, the method includes: one of a first transmission mode, a second transmission mode and a third transmission mode; wherein, first transmission mode includes: the LED display screen parameter data are sent to the FPGA modules of the LED display screen parameter receiving devices so that the corresponding FPGA modules can receive the LED display screen parameter data and check the data, and the FPGA modules directly process the successfully checked LED display screen parameter data; the second transmission mode includes: sending a parameter transmission request to an MCU module of each LED display screen parameter receiving device; receiving the information of allowing parameter transmission replied by each MCU module, repeatedly sending the LED display screen parameter data, and transmitting a data verification request to each MCU module after the sending is finished so that each MCU module informs the corresponding FPGA module to perform data verification on the received LED display screen parameter data; receiving a verification success notification sent by each MCU module and corresponding to the successfully verified LED display screen parameter data, and sending a transmission completion instruction to each MCU module, so that when each MCU module receives the transmission completion instruction, the MCU module processes the LED display screen parameter data; the third transmission mode includes: sending a parameter transmission request to an MCU module of each LED display screen parameter receiving device, and repeatedly sending LED display screen parameter data to each FPGA module after sending the parameter transmission request at a first set time interval so as to receive and check data by each FPGA module; and after the LED display screen parameter data interval is sent for the second set time, sending a transmission completion instruction to each MCU module so that each MCU module can process the successfully verified LED display screen parameter data.
In order to achieve the above and other related objects, the present invention provides a parameter receiving apparatus for an LED display screen, including: the MCU module and the FPGA module are in communication connection with an LED display screen parameter sending device; the MCU module is connected with the FPGA module; the FPGA module is used for receiving and verifying LED display screen parameter data from the LED display screen parameter sending device; and the MCU module and the FPGA module are also used for processing the LED display screen parameter data successfully verified.
In order to achieve the above and other related objects, the present invention provides a parameter transmitting device for an LED display screen, including: the communication module is used for establishing communication connection with one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the FPGA module is connected with the MCU module; the communication module is further used for sending the LED display screen parameter data to the FPGA modules of the LED display screen parameter receiving devices so that the FPGA modules can receive the LED display screen parameter data and check the data, and the MCU modules or the FPGA modules are adopted by the LED display screen parameter receiving devices to process the LED display screen parameter data which are successfully checked.
To achieve the above and other related objects, the present invention provides a parameter data transmission system for an LED display screen, comprising: the device comprises an LED display screen parameter sending device and one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the MCU module and the FPGA module are in communication connection with an LED display screen parameter sending device; the MCU module is connected with the FPGA module; and the LED display screen parameter sending device sends LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device, the FPGA module of each LED display screen parameter receiving device receives and verifies the LED display screen parameter data, and the corresponding MCU module or the corresponding FPGA module is adopted to process the successfully verified LED display screen parameter data.
As described above, the method, the receiving device, the sending device and the transmission system for transmitting the parameter data of the LED display screen have the following advantages: according to the invention, the LED display screen parameter data are sent to the FPGA module of the LED display screen parameter receiving device through the LED display screen parameter sending device, the FPGA module receives and verifies the LED display screen parameter data, and the MCU module or the FPGA module corresponding to the LED display screen parameter receiving device is adopted to process the successfully verified LED display screen parameter data, so that the high-efficiency transmission of the LED display screen parameter data is realized. The invention not only can effectively improve the transmission speed of the parameters and the firmware of the display screen, but also can reduce the assembly and debugging time of the display screen, thereby improving the parameter change response speed of the LED display screen and optimizing the user experience.
Drawings
Fig. 1 is a schematic structural diagram of an LED display screen system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a system for transmitting parameter data of an LED display screen according to an embodiment of the present invention.
Fig. 3 is a schematic data transmission diagram illustrating a parameter data transmission method of an LED display according to an embodiment of the present invention.
Fig. 4 is a schematic data transmission diagram illustrating a parameter data transmission method of an LED display screen according to an embodiment of the present invention.
Fig. 5 is a flowchart illustrating a method for transmitting parameter data of an LED display screen according to an embodiment of the present invention.
Fig. 6 is a flowchart illustrating a method for transmitting parameter data of an LED display screen according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The terms first, second, third, etc. are used herein to describe various elements, components, regions, layers and/or sections, but are not limited thereto. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the scope of the present invention.
Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including" specify the presence of stated features, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "a, B or C" or "a, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions or operations are inherently mutually exclusive in some way.
The invention provides a method, a device and a system for transmitting parameter data of an LED display screen, wherein the parameter data of the LED display screen is transmitted to an FPGA module of the parameter receiving device of the LED display screen by the parameter transmitting device of the LED display screen, the parameter data of the LED display screen is received and checked by the FPGA module, and the parameter data of the LED display screen which is successfully checked is processed by the MCU module or the FPGA module corresponding to the parameter receiving device of the LED display screen, so that the high-efficiency transmission of the parameter data of the LED display screen is realized. The invention not only can effectively improve the transmission speed of the parameters and the firmware of the display screen, but also can reduce the assembly and debugging time of the display screen, thereby improving the parameter change response speed of the LED display screen and optimizing the user experience.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that those skilled in the art can easily implement the embodiments of the present invention. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.
As shown in fig. 1, an implementation environment diagram of practical application in the embodiment of the present application is shown.
In a possible embodiment, an LED display screen system to which the present application is applied is illustrated in fig. 1. The LED display screen system comprises: the system comprises an LED display screen parameter sending device, a plurality of LED display screen sending cards and a plurality of LED display screen receiving cards; the LED display screen of each large spliced screen can comprise: the LED display screen transmitting card comprises an LED display screen transmitting card and a plurality of LED display screen receiving cards connected with the LED display screen transmitting card.
In a possible implementation manner, the LED display screen sending device may be an embedded device such as a PC computer or linux android, and the control software or the debugging software of the LED display screen runs in the embedded device.
It should be noted that the LED display screen parameter sending apparatus is a sending device, the LED display screen sending card may be a sending device or a receiving device, and the LED display screen receiving card is a receiving device.
In this implementation environment, both the display screen transmitting card and the display screen receiving card can be used as the LED display screen parameter receiving device, and in the display screen debugging stage and the normal operation stage, the LED display screen parameter transmitting device needs to transmit various parameters to the LED display screen parameter receiving device. The LED display screen parameter sending device can send the parameters required by the display screen to the display screen sending card and/or the display screen receiving card through the routing node.
In the parameter data sending process, a protocol layer and an application layer do not provide a complex control mechanism, and the LED display screen parameter sending device is only responsible for parameter sending and does not finely control packet loss retransmission operation in the transmission process on a protocol.
Based on the above implementation environment, fig. 2 shows a schematic structural diagram of an LED display screen parameter data transmission system in an embodiment of the present invention.
The LED display screen parameter data transmission system is applied to an LED display screen system shown in figure 1, and comprises: an LED display parameter transmitter 101 and one or more LED display parameter receivers 102 (fig. 2 only shows a single device as an example);
it should be noted that the LED display screen parameter sending device 101 is the LED display screen parameter sending device shown in fig. 1, and the LED display screen parameter receiving device 102 may be any one of the LED display screen sending cards shown in fig. 1 and a plurality of LED display screen receiving cards connected thereto; in addition, the premise of the implementation of the technical scheme is that the communication between the LED display screen parameter sending device 101 and the LED display screen parameter receiving device 102 in the LED display screen system is normal, and there is no packet loss or very low packet loss.
Wherein, each LED display screen parameter receiving device 102 includes: the MCU module 1021 and the FPGA module 1022 are in communication connection with an LED display screen parameter transmitting device 01; moreover, the MCU module 1021 is connected with the FPGA module 1022;
based on the above system, the parameter data transmission modes of the LED display screen parameter sending device 101 and the plurality of LED display screen parameter receiving devices 102 include:
firstly, the LED display screen parameter sending device 101 establishes communication connection with each LED display screen parameter receiving device 102; the LED display screen parameter sending device 101 sends LED display screen parameter data to the FPGA module 1021 of each LED display screen parameter receiving device 102, the FPGA module 1022 of each LED display screen parameter receiving device 102 receives the LED display screen parameter data and performs data verification on the received data, and each LED display screen parameter receiving device 102 adopts the corresponding MCU module 1021 or FPGA module 1022 to process the LED display screen parameter data which are successfully verified.
Because no complicated control mechanism is provided in the parameter data sending process, the protocol layer and the application layer, the LED display screen parameter sending apparatus 101 is only responsible for parameter sending, and does not finely control packet loss retransmission operation in the transmission process in terms of protocol, but can perform retransmission operation several times to ensure successful parameter transmission in each parameter sending. The parameter data of the LED display screen is received and protocol-analyzed by the FPGA module 1022 of the LED display screen parameter receiving apparatus 102, and the obtained parameters may be transmitted to the MCU module 1021 of the LED display screen parameter receiving apparatus 102 for parameter operation, or may be directly used by the FPGA module 1021.
The transmission method adopted by the system reduces the participation degree of the MCU in the receiving equipment in the parameter transmission process, makes full use of the high bandwidth characteristic of the FPGA in the receiving equipment and improves the bandwidth utilization rate.
The parameter data transmission modes of the LED display screen parameter sending device 101 and the LED display screen parameter receiving device 102 in the above LED display screen parameter data transmission system can be expanded into three implementation modes, and any one of the three implementation modes can be adopted for data transmission, and the following description is respectively given with reference to the accompanying drawings;
the first embodiment is as follows:
the first transmission mode adopted is as follows: after the device establishes communication, the LED display screen parameter sending device 101 sends LED display screen parameter data to the FPGA module 1022 of each LED display screen parameter receiving device 102; receiving and data checking the parameter data of the LED display screen by the corresponding FPGA module 1022; if the successfully verified parameter data is obtained, the FPGA module 1022 directly processes the successfully verified LED display parameter data.
The method can be applied to the condition that parameters with higher real-time performance in the LED display screen need to be transmitted and parameter information without complex operation, such as whole screen brightness parameters, gamma parameters or point-by-point correction data and the like.
If the LED display screen system has the point-to-point and point-to-surface large data volume transmission requirements of the LED display screen parameter sending device and the LED display screen parameter receiving device 102, the following two implementation modes can be adopted for transmission;
the second concrete embodiment:
fig. 3 is a schematic diagram illustrating parameter data transmission of an LED display screen using the transmission method in this embodiment. The transmission mode comprises the following steps: after the device establishes communication, the LED display screen parameter sending device 101 firstly sends a parameter transmission request to the MCU module of each LED display screen parameter receiving device 102, the corresponding MCU module receives the parameter transmission request from the LED display screen parameter sending device 101, and replies allowed parameter transmission information to the LED display screen parameter sending device 101; the LED display screen parameter sending device 101 receives the allowed parameter transmission information replied by each MCU module, repeatedly sends the LED display screen parameter data and sends a data verification request to each MCU module after sending is completed. When the MCU module receives a data verification request transmitted by the LED display screen parameter transmitting device 101, the corresponding FPGA module is informed; and the FPGA module performs data verification on the received LED display screen parameter data, informs the MCU module when the LED display screen parameter data which is successfully verified is received, and informs the LED display screen parameter sending device 101 of successful verification through the MCU module. The LED display screen parameter sending device 101 receives a verification success notification sent by the MCU module and corresponding to the LED display screen parameter data successfully verified, and sends a transmission completion instruction to the corresponding MCU module. And when the MCU module receives the transmission completion instruction, the MCU module processes the successfully verified LED display screen parameter data.
The method can be applied to point-to-point large data volume parameter transmission of the LED display screen parameter sending device and the single LED display screen parameter receiving device, such as firmware upgrading of a single receiving card, solidification of point-to-point correction data and the like.
The third concrete embodiment:
with a third transmission mode, fig. 4 is a schematic diagram of parameter data transmission of the LED display screen with this transmission mode in this embodiment. The transmission mode comprises the following steps: the LED display screen parameter sending device 101 sends a parameter transmission request to the MCU module of each LED display screen parameter receiving device 102; the MCU module receives a parameter transmission request from the LED display screen parameter sending device 101, and the LED display screen parameter sending device 101 repeatedly sends LED display screen parameter data to each FPGA module after sending the parameter transmission request and after a first set time interval; the FPGA module receives the LED display screen parameter data repeatedly sent by the LED display screen parameter sending device 101 and performs data verification; the LED display screen parameter sending device 101 sends a transmission completion instruction to each MCU module after sending the LED display screen parameter data at an interval of second set time; and when the MCU module receives a transmission completion instruction sent by the LED display screen parameter sending device, the MCU module processes the successfully verified LED display screen parameter data.
The first setting time and the second setting time may be set according to the own requirement, and may be the same or different, and are not limited thereto.
The method adds broadcast and multicast transmission modes on the basis of the second transmission mode, is suitable for point-to-point parameter transmission, and reduces redundant transmission. The method can be applied to point-to-point large data volume parameter transmission of the LED display screen parameter sending device and the plurality of LED display screen parameter receiving devices, such as firmware upgrading of a plurality of receiving cards, parameter configuration and the like.
In addition, the LED display screen parameter receiving apparatus 102 may further include a dynamic memory for storing the successfully verified LED display screen parameter data.
For example, the LED display screen parameter sending device 101 first sends a plurality of frame communication parameter transmission request instructions to the MCU module of the receiving device 102, the receiving device MCU module does not need to reply after receiving the request instructions, the sending device 101 automatically enters a data transmission stage after waiting for about 50ms, and continuously and repeatedly sends the parameter data sub-packets to the receiving device FPGA, the receiving device FPGA can store the parameter data into a dynamic memory (sdram or ddr) of the receiving device after receiving a correct data packet, so as to avoid packet loss during transmission, the sending device can repeat a plurality of data transmission operations, and after transmission is completed, send a plurality of frame transmission completion instructions after waiting for about 50 ms. After receiving the transmission completion instruction, the MCU of the receiving device 102 verifies the received data and performs relevant processing on the parameter data for application.
Fig. 5 shows a schematic flow chart of parameter data transmission of an LED display screen in the embodiment of the present application.
The method can be implemented by the LED display screen parameter receiving device of the LED display screen parameter data transmission system in the foregoing embodiment, which is not described herein again.
Namely, the parameter receiving device applied to an LED display screen comprises: the FPGA module is connected with the MCU module, and the method comprises the following steps:
step S201: establishing communication connection with an LED display screen parameter sending device;
specifically, the MCU module and the FPGA module are in communication connection with the LED display screen parameter sending device.
In one embodiment, the LED display screen parameter receiving device is an LED display screen sending card or an LED display screen receiving card; and each LED display screen sending card is connected with one or more LED display screen receiving cards.
Step S202: and the FPGA module receives and verifies the LED display screen parameter data from the LED display screen parameter transmitting device, and the MCU module or the FPGA module is adopted to process the successfully verified LED display screen parameter data.
In one embodiment, step S202 includes:
receiving and verifying the LED display screen parameter data from the LED display screen parameter sending device by the FPGA module;
and the FPGA module directly processes the successfully verified LED display screen parameter data.
In one embodiment, step S202 includes:
the MCU module receives a parameter transmission request from the LED display screen parameter transmitting device and replies allowable parameter transmission information to the LED display screen parameter transmitting device so that the LED display screen parameter transmitting device can repeatedly transmit the LED display screen parameter data;
receiving the LED display screen parameter data from the LED display screen parameter sending device by the FPGA module;
when the MCU module receives a data verification request transmitted by the LED display screen parameter transmitting device after the LED display screen parameter data is transmitted, the FPGA module is informed;
the FPGA module carries out data verification on the received LED display screen parameter data and informs the MCU module when the LED display screen parameter data which are successfully verified are received;
the MCU module sends a verification success notice to the LED display screen parameter sending device so that the LED display screen parameter sending device sends a transmission completion instruction;
and when the MCU module receives the transmission completion instruction, the MCU module processes the successfully verified LED display screen parameter data.
In one embodiment, step S202 includes:
receiving a parameter transmission request from the LED display screen parameter sending device by the MCU module;
the FPGA module receives LED display screen parameter data which are repeatedly sent by the LED display screen parameter sending device after the parameter transmission request interval is sent for a first set time, and data verification is carried out;
and when the MCU module receives a transmission completion instruction sent by the LED display screen parameter sending device after the LED display screen parameter data transmission device finishes sending the second set time, the MCU module processes the LED display screen parameter data which are successfully verified.
Similar to the principle of the above embodiment, the invention provides a parameter receiving device for an LED display screen.
The LED display screen parameter receiving apparatus function can be implemented by the LED display screen parameter receiving apparatus 102 in fig. 2, where the apparatus includes: the MCU module and the FPGA module are in communication connection with an LED display screen parameter sending device; the MCU module is connected with the FPGA module; the FPGA module is used for receiving and verifying LED display screen parameter data from the LED display screen parameter sending device; and the MCU module and the FPGA module are also used for processing the successfully verified LED display screen parameter data.
Since the implementation principle of the LED display parameter receiving apparatus has been described in the foregoing embodiments, repeated descriptions are omitted here.
As shown in fig. 6, a schematic flow chart of parameter data transmission of an LED display screen in the embodiment of the present application is shown.
The method can be implemented by the LED display screen parameter sending device of the LED display screen parameter data transmission system in the foregoing embodiment, which is not described herein again.
Namely, the method is applied to a parameter sending device of the LED display screen, and the method comprises the following steps:
step S301: establishing communication connection with one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the system comprises an MCU module and an FPGA module connected with the MCU module;
step S302: and sending the LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device so that each FPGA module can receive and check the LED display screen parameter data, and processing the successfully checked LED display screen parameter data by adopting the corresponding MCU module or the corresponding FPGA module.
In one embodiment, the transmission method includes: one of a first transmission mode, a second transmission mode and a third transmission mode;
wherein, first transmission mode includes: the LED display screen parameter data are sent to the FPGA modules of the LED display screen parameter receiving devices so that the corresponding FPGA modules can receive the LED display screen parameter data and check the data, and the FPGA modules directly process the successfully checked LED display screen parameter data;
the second transmission mode includes: sending a parameter transmission request to an MCU module of each LED display screen parameter receiving device; receiving the information of allowing parameter transmission replied by each MCU module, repeatedly transmitting the LED display screen parameter data and transmitting a data verification request to each MCU module after the transmission is finished so that each MCU module informs the corresponding FPGA module to perform data verification on the received LED display screen parameter data; receiving a verification success notification which is sent by each MCU module and corresponds to the LED display screen parameter data successfully verified, and sending a transmission completion instruction to each MCU module, so that when each MCU module receives the transmission completion instruction, the MCU module processes the LED display screen parameter data;
the third transmission mode comprises the following steps: sending a parameter transmission request to an MCU module of each LED display screen parameter receiving device, and repeatedly sending LED display screen parameter data to each FPGA module after sending the parameter transmission request at a first set time interval so as to receive and check data by each FPGA module; and after the LED display screen parameter data interval is sent for the second set time, sending a transmission completion instruction to each MCU module so that each MCU module can process the successfully verified LED display screen parameter data.
Similar to the principle of the above embodiment, the invention provides a parameter sending device for an LED display screen.
The function of the LED display screen parameter sending device can be realized by the LED display screen parameter sending device in FIG. 2, and the device comprises: the communication module is used for establishing communication connection with one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the FPGA module is connected with the MCU module; the communication module is further used for sending the LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device so that each FPGA module can receive the LED display screen parameter data and check the data, and each LED display screen parameter receiving device adopts the MCU module or the FPGA module to process the LED display screen parameter data which are successfully checked.
Since the implementation principle of the LED display parameter sending apparatus has been described in the foregoing embodiments, repeated descriptions are omitted here.
The invention provides a method, a device and a system for transmitting parameter data of an LED display screen, wherein the parameter data of the LED display screen is transmitted to an FPGA module of the parameter receiving device of the LED display screen by the parameter transmitting device of the LED display screen, the parameter data of the LED display screen is received and checked by the FPGA module, and the successfully checked parameter data of the LED display screen is processed by the MCU module or the FPGA module corresponding to the parameter receiving device of the LED display screen, so that the high-efficiency transmission of the parameter data of the LED display screen is realized. The invention not only can effectively improve the transmission speed of the parameters and the firmware of the display screen, but also can reduce the assembly and debugging time of the display screen, thereby improving the parameter change response speed of the LED display screen and optimizing the user experience. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A method for transmitting parameter data of an LED display screen is characterized by being applied to a parameter receiving device of the LED display screen and comprising the following steps: the FPGA module is connected with the MCU module, and the method comprises the following steps:
establishing communication connection with an LED display screen parameter sending device;
and the FPGA module receives and verifies the LED display screen parameter data from the LED display screen parameter transmitting device, and the MCU module or the FPGA module is adopted to process the successfully verified LED display screen parameter data.
2. The method for transmitting the parameter data of the LED display screen according to claim 1, wherein the LED display screen parameter receiving device is an LED display screen sending card or an LED display screen receiving card; and each LED display screen sending card is connected with one or more LED display screen receiving cards.
3. The method for transmitting the parameter data of the LED display screen according to claim 1, wherein the method comprises the following steps:
receiving and verifying the LED display screen parameter data from the LED display screen parameter sending device by the FPGA module;
and the FPGA module directly processes the successfully verified LED display screen parameter data.
4. The method for transmitting the parameter data of the LED display screen according to claim 1, wherein the method comprises the following steps:
the MCU module receives a parameter transmission request from the LED display screen parameter transmitting device and replies allowable parameter transmission information to the LED display screen parameter transmitting device so that the LED display screen parameter transmitting device can repeatedly transmit the LED display screen parameter data;
receiving, by the FPGA module, LED display screen parameter data from the LED display screen parameter sending device;
when the MCU module receives a data verification request transmitted by the LED display screen parameter transmitting device after the LED display screen parameter data is transmitted, the FPGA module is informed;
the FPGA module carries out data verification on the received LED display screen parameter data and informs the MCU module when the LED display screen parameter data which are successfully verified are received;
the MCU module sends a verification success notice to the LED display screen parameter sending device so that the LED display screen parameter sending device sends a transmission completion instruction;
and when the MCU module receives the transmission completion instruction, the MCU module processes the successfully verified LED display screen parameter data.
5. The method for transmitting the parameter data of the LED display screen according to claim 1, wherein the method comprises the following steps:
receiving a parameter transmission request from the LED display screen parameter sending device by the MCU module;
the FPGA module receives the LED display screen parameter data which are repeatedly sent by the LED display screen parameter sending device after the parameter transmission request is sent for a first set time, and data verification is carried out;
and when the MCU module receives a transmission completion instruction sent by the LED display screen parameter sending device after the LED display screen parameter data transmission device finishes sending the second set time, the MCU module processes the LED display screen parameter data which are successfully verified.
6. A parameter data transmission method of an LED display screen is applied to a parameter sending device of the LED display screen, and the method comprises the following steps:
establishing communication connection with one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the system comprises an MCU module and an FPGA module connected with the MCU module;
and sending the LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device so that each FPGA module can receive and check the LED display screen parameter data, and processing the successfully checked LED display screen parameter data by adopting the corresponding MCU module or FPGA module.
7. The method for transmitting the parameter data of the LED display screen according to claim 6, wherein the method comprises the following steps: one of a first transmission mode, a second transmission mode and a third transmission mode;
wherein, first transmission mode includes: the LED display screen parameter data are sent to the FPGA modules of the LED display screen parameter receiving devices so that the corresponding FPGA modules can receive the LED display screen parameter data and check the data, and the FPGA modules directly process the successfully checked LED display screen parameter data;
the second transmission mode includes: sending a parameter transmission request to an MCU module of each LED display screen parameter receiving device; receiving the information of allowing parameter transmission replied by each MCU module, repeatedly sending the LED display screen parameter data, and transmitting a data verification request to each MCU module after the sending is finished so that each MCU module informs the corresponding FPGA module to perform data verification on the received LED display screen parameter data; receiving a verification success notification which is sent by each MCU module and corresponds to the LED display screen parameter data successfully verified, and sending a transmission completion instruction to each MCU module, so that when each MCU module receives the transmission completion instruction, the MCU module processes the LED display screen parameter data;
the third transmission mode comprises the following steps: sending a parameter transmission request to an MCU module of each LED display screen parameter receiving device, and repeatedly sending LED display screen parameter data to each FPGA module after sending the parameter transmission request at a first set time interval so as to receive and check data by each FPGA module; and after the LED display screen parameter data interval is sent for the second set time, sending a transmission completion instruction to each MCU module so that each MCU module can process the successfully verified LED display screen parameter data.
8. An LED display screen parameter receiving device is characterized by comprising:
the MCU module and the FPGA module are in communication connection with an LED display screen parameter sending device; the MCU module is connected with the FPGA module;
the FPGA module is used for receiving and verifying LED display screen parameter data from the LED display screen parameter sending device; and the MCU module and the FPGA module are also used for processing the successfully verified LED display screen parameter data.
9. The utility model provides a LED display screen parameter sending device which characterized in that includes:
the communication module is used for establishing communication connection with one or more LED display screen parameter receiving devices; wherein, every LED display screen parameter receiving arrangement includes: the FPGA module is connected with the MCU module;
the communication module is further used for sending the LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device so that each FPGA module can receive the LED display screen parameter data and check the data, and each LED display screen parameter receiving device adopts the MCU module or the FPGA module to process the LED display screen parameter data which are successfully checked.
10. A LED display screen parameter data transmission system is characterized in that the system is applied to an LED display screen system, and the system comprises:
the LED display screen parameter transmitting device and the LED display screen parameter receiving device or devices;
wherein, every LED display screen parameter receiving arrangement includes: the MCU module and the FPGA module are in communication connection with an LED display screen parameter transmitting device; the MCU module is connected with the FPGA module;
and the LED display screen parameter transmitting device transmits the LED display screen parameter data to the FPGA module of each LED display screen parameter receiving device, the FPGA module of each LED display screen parameter receiving device receives and verifies the LED display screen parameter data, and the corresponding MCU module or the corresponding FPGA module is adopted to process the LED display screen parameter data which are verified successfully.
CN202211304482.0A 2022-10-24 2022-10-24 Parameter data transmission method, receiving device, sending device and transmission system for LED display screen Pending CN115602101A (en)

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Application Number Priority Date Filing Date Title
CN202211304482.0A CN115602101A (en) 2022-10-24 2022-10-24 Parameter data transmission method, receiving device, sending device and transmission system for LED display screen

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CN115602101A true CN115602101A (en) 2023-01-13

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