CN111694527A - Display control method and system, display control card and data updating card - Google Patents
Display control method and system, display control card and data updating card Download PDFInfo
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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Abstract
The embodiment of the invention relates to a display control method, a data updating card, a display control card and a display control system, wherein the display control method comprises the following steps: acquiring data to be transmitted; carrying out protocol conversion on the data to be sent to obtain converted data; and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to perform corresponding operation. The display control method provided by the embodiment of the invention can realize the updating of the display programs of a plurality of display screens and reduce the hardware cost.
Description
Technical Field
The present invention relates to the field of display control technologies, and in particular, to a display control method, a data update card, a display control card, and a display control system.
Background
For a large-scale sports meeting, a mode of additionally installing a display screen on each auditorium gradually appears, in order to realize the whole display effect on the spot, program updating needs to be carried out on all the display screens on the auditorium, in the prior art, program updating needs to be carried out on the display screens by connecting a display control card of each display screen to an upper computer through a network cable, but because the number of the display screens on the auditorium is large, great inconvenience can be brought to spot installation by adopting the mode, the cost is high, and meanwhile, the condition that partial equipment fails to be updated due to the connection problem can also exist.
Disclosure of Invention
Therefore, an embodiment of the present invention provides a display control method, a data update card, a display control card, and a display control system to solve the above-mentioned deficiencies of the related art.
Specifically, a display control method provided in an embodiment of the present invention includes: (i) acquiring data to be transmitted; (ii) carrying out protocol conversion on the data to be sent to obtain converted data; (iii) and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to perform corresponding operation.
In an embodiment of the present invention, in step (i), the data to be transmitted is program data, and the display control method further includes: judging whether each display screen in the plurality of display screens successfully receives the converted data; and (e) when it is judged that any one of the plurality of display screens does not successfully receive the converted data, responding to a user key operation or automatically repeating the steps (i) to (iii) until each of the plurality of display screens successfully receives the converted data.
In an embodiment of the present invention, the data to be sent is command data; the step (iii) specifically includes: and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to carry out the operation of synchronously switching programs or changing the display state.
In addition, a data update card provided in an embodiment of the present invention includes: the processor is used for acquiring data to be sent and carrying out protocol conversion on the data to be sent to obtain converted data; and the wireless spread spectrum communication module is connected with the processor and is used for sending the converted data to a plurality of display screens within the working range of the wireless spread spectrum communication module in a wireless mode so as to be respectively received and analyzed by the display screens to perform corresponding operation.
In an embodiment of the present invention, the processor is provided with a mobile storage device interface, configured to connect to a mobile storage device, so as to obtain program data as the data to be sent.
In an embodiment of the present invention, the data update card further includes: and the human-computer interaction module is connected with the processor and used for responding to user operation to generate a human-computer interaction instruction to the processor so that the processor can generate command data as the data to be sent.
In one embodiment of the present invention, the human-computer interaction module includes: the first key is used for generating a first instruction to the processor so that the processor can control the display screens to update programs; the second key is used for generating a second instruction to the processor so that the processor can control the display screens to synchronously switch programs; and the third key is used for generating a third instruction to the processor so that the processor can control the plurality of display screens to change the display state of the display screen body of the processor.
Furthermore, an embodiment of the present invention provides a display control card, including: a non-volatile memory; a volatile memory; the wireless spread spectrum communication module is used for receiving input data in a wireless spread spectrum communication mode; the processor is connected with the wireless spread spectrum communication module and the nonvolatile memory and is used for receiving and analyzing the input data to obtain analyzed data and carrying out corresponding operation according to the analyzed data; and the programmable logic device is respectively connected with the processor and the volatile memory and is used for driving and controlling the display screen body.
In an embodiment of the invention, the processor is specifically configured to: judging the type of the analyzed data; when the analyzed data is judged to be program data, updating the program stored in the nonvolatile memory according to the program data; and when the analyzed data is judged to be command data, carrying out corresponding command operation according to the command data.
In one embodiment of the invention, the processor is provided with a mobile storage device interface for connecting a mobile storage device as an input channel of the program data.
Furthermore, a display control system provided in an embodiment of the present invention includes: the data updating card is used for acquiring data to be sent, carrying out protocol conversion on the data to be sent to obtain converted data and sending the converted data in a wireless spread spectrum communication mode; a plurality of display screens dispersedly arranged at different positions; wherein each of the plurality of display screens comprises: a display screen body; the display control card is connected with the display screen body and used for receiving the converted data sent by the data updating card in a wireless spread spectrum communication mode and analyzing the converted data to perform corresponding operation; the data update card is the data update card described in any one of the above items, and the display control card is the display control card described in any one of the above items.
In an embodiment of the present invention, the wireless spread spectrum communication module of the data update card and the wireless spread spectrum communication module of the display control card are Lora modules, and the wireless spread spectrum communication module of the data update card and the wireless spread spectrum communication module of the display control card are configured with the same channel, address and group ID.
In an embodiment of the present invention, the aforementioned display control system further includes: the data updating card is arranged in the aviation box; the aviation case is further provided with a signal lamp which is connected to the data updating card and used for indicating whether each display screen in the plurality of display screens successfully receives the converted data.
In an embodiment of the present invention, the aforementioned display control system further includes: the upper computer is used for: acquiring a plurality of display screen information respectively corresponding to the plurality of display screens in a wireless mode, wherein each display screen information comprises an identification code and initial position coordinate information; displaying the plurality of display screen information; updating the initial position coordinate information in the displayed plurality of display screen information to obtain a plurality of updated display screen information respectively corresponding to the plurality of display screens, wherein each updated display screen information comprises the identification code and target position coordinate information corresponding to the identification code; sequencing the updated display screen information according to the target position coordinate information in the updated display screen information; after the sorting is carried out, display coordinate assignment is respectively carried out on the plurality of updated display screen information so as to obtain a plurality of display coordinate information which are in one-to-one correspondence with the plurality of updated display screen information; and sending the plurality of updated display screen information and the plurality of display coordinate information which corresponds to the plurality of updated display screen information one to the plurality of display screens.
In an embodiment of the present invention, each display screen is configured to intercept program data by using the corresponding display coordinate information and then play and display the program data.
As can be seen from the above, the embodiments of the present invention can achieve one or more of the following advantages: by carrying out program updating and command control on a plurality of display screens in a wireless spread spectrum communication mode, the complicated steps that in the prior related technical scheme, a display control card of each display screen needs to be connected to an upper computer in a wired mode to carry out program updating and command control are avoided; the hardware cost is reduced, and the operation is more flexible; and the whole display control system is simple to build, and the efficiency of the realized display control method is higher.
Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a display control method according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a data update card according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a human-computer interaction module in a data update card according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a display control card according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display control system according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display control system according to a fourth embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a display control system according to a fourth embodiment of the present invention;
FIG. 8 is a diagram illustrating an architecture of a display control system according to a fourth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display screen in a specific implementation of a display control system according to a fourth embodiment of the present invention.
[ brief description of the drawings ]
S11-S13: a display control method;
20: a data update card; 21: a processor; 211: a mobile storage device interface; 22: a wireless spread spectrum communication module; 23: a human-computer interaction module; 231: pressing a key; 232: pressing a key; 233: pressing a key;
30: displaying a control card; 31: a processor; 311: a mobile storage device interface; 32: a wireless spread spectrum communication module; 33: a programmable logic device; 34: a volatile memory; 35: a non-volatile memory;
40: a display control system; 41: a data update card; 42: a display screen; 421: a display screen body; 422: displaying a control card; 43: an aviation case; 431: a signal lamp; 44: and (4) an upper computer.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The invention will be described in connection with embodiments with reference to the drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the division of the embodiments of the present invention is only for convenience of description and should not be construed as a limitation, and features of various embodiments may be combined and referred to each other without contradiction.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a display control method is provided in a first embodiment of the present invention. As shown in fig. 1, the display control method includes, for example, steps S11 to S13.
Step S11: acquiring data to be transmitted;
step S12: carrying out protocol conversion on the data to be sent to obtain converted data;
step S13: and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to perform corresponding operation.
Specifically, in step S11, the data to be transmitted is, for example, program data and/or command data. The protocol conversion mentioned in step S12 is, for example, data conversion according to the lora (long range) wireless communication protocol. The wireless spread spectrum communication mentioned in step S13 is, for example, lora (long range) wireless communication. The mentioned display screen is, for example, an LED display screen, and typically, the LED display screen includes a display control card and an LED display screen body connected to the display control card. The display control card is provided with a wireless spread spectrum communication module and can receive converted data sent by a wireless spread spectrum communication mode.
Further, when the mentioned data to be transmitted is program data, the display control method provided in this embodiment further includes: and judging whether each display screen in the plurality of display screens successfully receives the converted data, and when judging that any display screen in the plurality of display screens does not successfully receive the converted data, automatically repeating the step S11 to the step S13 until each display screen in the plurality of display screens successfully receives the converted data. Therefore, the automatic repeated display control method is realized to ensure that all display screens can receive the converted data so as to carry out corresponding operation, and the efficiency is higher.
In addition, when the mentioned data to be transmitted is program data, the display control method provided in this embodiment further includes: and judging whether each display screen in the plurality of display screens successfully receives the converted data, and responding to the key operation of the user to repeat the steps S11 to S13 when judging that any display screen in the plurality of display screens does not successfully receive the converted data. Therefore, the user manually controls the repeated display control method to ensure that all display screens can receive the converted data so as to perform corresponding operation, the user participation degree is higher, and the controllability is strong.
In addition, when the mentioned data to be sent is command data, the mentioned step S13 specifically includes: and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to carry out the operation of synchronously switching programs or changing the display state. Here, the change of the display state is mentioned as, for example, a display screen that is in an off state is lit, or a display screen that is in an on state is lit off. The plurality of display screens can be simultaneously lighted or extinguished, or a certain display screen is lighted and the rest display screens are in an extinguished state.
In summary, the display control method provided in this embodiment performs program updating and command control on multiple display screens in a wireless spread spectrum communication manner, so as to avoid the complicated steps of performing program updating and command control by connecting the display control cards of the display screens to the upper computer by wires in the related art; hardware cost is reduced, and the operation is more flexible.
[ second embodiment ]
Referring to fig. 2, a second embodiment of the present invention provides a data update card. As shown in fig. 2, the data update card 20 includes, for example: a processor 21 and a wireless spread spectrum communication module 22 connected to the processor 21.
Specifically, the processor 21 is configured to obtain data to be sent and perform protocol conversion on the data to be sent to obtain converted data. The wireless spread spectrum communication module 22 is configured to wirelessly transmit the converted data to a plurality of display screens located within a working range of the wireless spread spectrum communication module, so that the plurality of display screens respectively receive and analyze the converted data to perform corresponding operations.
The processor 21 is, for example, an ARM9 series (Advanced RISC Machines) processor or an mcu (microcontrol unit), and the wireless spread spectrum communication module 22 is, for example, a lora (long range) module.
Further, the processor 21 is provided with a mobile storage device interface 211, for example, for connecting a mobile storage device to acquire program data as the data to be transmitted. The removable storage device interface 211 is, for example, a USB interface, and the removable storage device is, for example, a USB disk.
Further, as shown in fig. 2, the data update card 20 further includes, for example: a human-computer interaction module 23. The human-computer interaction module 23 is connected to the processor 21, and configured to generate a human-computer interaction instruction to the processor 21 in response to a user operation, so that the processor 21 generates command data as the data to be sent.
As shown in fig. 3, the human-computer interaction module 23 includes, for example: button 231, button 232, and button 233. The button 231 is used for generating a first command to the processor 21, so that the processor 21 controls the plurality of display screens to perform program updating. The button 232 is used for generating a second instruction to the processor 21, so that the processor 21 controls the plurality of display screens to perform program synchronous switching. The button 233 is used for generating a third command to the processor 21, so that the processor 21 controls the plurality of display screens to change the display states of the display screens. It should be noted that the key 233 generates a third instruction to the processor to control the multiple display screens to change the display states of the display screens, for example, to simultaneously control the multiple display screens to be turned off or turned on, or to designate a certain display screen to be turned on and the rest display screens to be turned off.
It should be noted that the data update card provided in this embodiment may implement the display control method as described in the first embodiment, and for brevity, details of the display control method are not repeated, and specific descriptions may refer to the first embodiment.
In summary, the display control method implemented by the data update card provided in this embodiment performs program update and command control on a plurality of display screens in a wireless spread spectrum communication manner, so as to avoid the complicated steps of performing program update and command control by connecting the display control card of each display screen to the upper computer by wire in the related art; hardware cost is reduced, and the operation is more flexible.
[ third embodiment ]
Referring to fig. 4, a third embodiment of the present invention provides a display control card. As shown in fig. 4, the display control card 30 includes, for example: a processor 31, a wireless spread spectrum communication module 32, a programmable logic device 33, a volatile memory 34, and a non-volatile memory 35.
Specifically, the wireless spread spectrum communication module 32 is configured to receive input data in a wireless spread spectrum communication manner. The processor 31 is connected to the wireless spread spectrum communication module 32 and the nonvolatile memory 35, and is configured to receive and analyze the input data to obtain analyzed data, and perform corresponding operations according to the analyzed data. The programmable logic device 33 is connected to the processor 31 and the volatile memory 34, respectively, for driving and controlling the display screen body.
The processor 31 is, for example, an ARM9 series (Advanced RISC Machines) processor or an MCU (Microcontrol Unit). The wireless spread spectrum communication module 32 is, for example, a Lora module. The Programmable logic device 33 is, for example, an FPGA (Field Programmable Gate Array). The volatile Memory 34 is, for example, a Dynamic random access Memory (DDR SDRAM), for example. The nonvolatile memory 35 is, for example, a Flash memory.
Further, the processor 31 is specifically configured to: judging the type of the analyzed data, and when the analyzed data is judged to be program data, updating the program stored in the nonvolatile memory 35 according to the program data; and when the analyzed data is judged to be command data, carrying out corresponding command operation according to the command data. The mentioned command operation is, for example, program switching, power on/off or random point seeking.
Further, the processor 31 is provided with a mobile storage device interface 311, for example, for connecting a mobile storage device as an input channel of the program data. The removable storage device interface 311 is, for example, a USB interface, and correspondingly, the removable storage device is, for example, a USB disk.
The display control card provided in this embodiment is, for example, a receiving card, and is provided with an RGB interface (not shown in the figure), and is connected to the LED lamp panel of the display screen body, and is configured to drive the LED lamp panel to perform display.
It should be noted that the display control card 30 provided in this embodiment is connected to the data update card 20 provided in the second embodiment through, for example, the wireless spread spectrum communication module 32, and can receive the converted data sent by the wireless spread spectrum communication module 22 of the data update card 20 to perform corresponding operations.
In summary, the display control card provided in this embodiment performs program update and command control on multiple display screens by receiving data in a wireless spread spectrum communication manner, so as to avoid the complicated steps of performing program update and command control by connecting the display control card of each display screen to an upper computer in a wired manner in the related art; hardware cost is reduced, and the operation is more flexible.
[ fourth example ] A
Referring to fig. 5, a fourth embodiment of the present invention provides a display control system. As shown in fig. 5, the display control system 40 includes, for example: a data update card 41 and a plurality of display screens.
Specifically, the data update card 41 is configured to obtain data to be sent, perform protocol conversion on the data to be sent to obtain converted data, and send the converted data in a wireless spread spectrum communication manner. The plurality of display screens are dispersedly arranged at different positions.
As shown in fig. 5, each display screen 42 of the plurality of display screens includes, for example: a display screen body 421 and a display control card 422 connected to the display screen body 421. The display control card 422 is used for receiving the converted data sent by the data updating card 41 in a wireless spread spectrum communication manner, and analyzing the converted data to perform corresponding operations.
Further, the data update card 41 is, for example, the data update card 20 provided in the second embodiment, and the display control card 422 is, for example, the display control card 30 provided in the third embodiment. For the specific description of the data update card 41 and the display control card 422, reference may be made to the description of the data update card 20 provided in the second embodiment and the display control card 30 provided in the third embodiment, and therefore, for brevity, no further description is provided herein.
Further, the wireless spread spectrum communication module of the data update card 41 and the wireless spread spectrum communication module of the display control card 422 are, for example, Lora modules, and the wireless spread spectrum communication module of the data update card 41 and the wireless spread spectrum communication module of the display control card 422 are configured with the same channel, address, and group ID. The wireless spread spectrum communication protocol mentioned is for example the Lora wireless communication protocol.
Further, as shown in fig. 6, the display control system 40 further includes, for example: an aviation case 43. The data update card 41 is provided in the flight box 43. The flight box 43 is further provided with a signal light 431 connected to the data update card 41 for indicating whether each display screen 42 of the plurality of display screens successfully receives the converted data. The signal lamp 431 is, for example, an LED lamp.
Further, as shown in fig. 7, the display control system 40 further includes: and an upper computer 44. The upper computer 44 retrieves the plurality of display screens through a wireless rf (radio frequency) mechanism, so as to perform initialization configuration on the plurality of display screens. Specifically, the upper computer 44 acquires, in a wireless manner, a plurality of pieces of display screen information corresponding to the plurality of display screens, respectively, where each piece of display screen information includes an identification code and initial position coordinate information; displaying the plurality of display screen information; updating the initial position coordinate information in the displayed plurality of display screen information to obtain a plurality of updated display screen information respectively corresponding to the plurality of display screens, wherein each updated display screen information comprises the identification code and target position coordinate information corresponding to the identification code; sequencing the updated display screen information according to the target position coordinate information in the updated display screen information; after the sorting is carried out, display coordinate assignment is respectively carried out on the plurality of updated display screen information so as to obtain a plurality of display coordinate information which are in one-to-one correspondence with the plurality of updated display screen information; and sending the plurality of updated display screen information and the plurality of display coordinate information which corresponds to the plurality of updated display screen information one to the plurality of display screens.
Such as a personal computer, a server, a hand-held or portable device, a tablet device, multiprocessor systems, microprocessor-based systems, programmable consumer electronics, network PC, minicomputer, mainframe computer, distributed computing environment that includes any of the above systems or devices, and the like.
It should be noted that the display control system 40 provided in this embodiment can implement the display control method described in the first embodiment, and therefore, for brevity, no further description is provided here. The aforementioned display screen 42 is, for example, an LED display screen, and the display control card 422 is, for example, a receiving card, and is connected to the LED lamp panel of the LED display screen body 421 to drive the LED lamp panel to display. Each display screen 42 captures the program data by using the display coordinate information obtained through the initialization configuration, and plays and displays the program data.
For better understanding of the present embodiment, a detailed description of a specific embodiment of the display control system 40 provided in the present embodiment is provided below with reference to fig. 8 and 9.
The setting scenario is as follows: in the scene of the opening of a concert or a large-scale sports meeting, a display screen is arranged on each seat and serves as a display unit for displaying a large screen on the whole seat. The display unit includes, for example, 9 light points (the invention is not limited thereto), and each light point includes RGB three-color LEDs. Assuming that there are 3 ten thousand seats in the site, the whole seat display large screen has 3 ten thousand display units, and the mentioned display screen is, for example, a display screen body including a display control card and a display screen body connected with the display control card. The display screen can be shaken by audiences to interact with the stage, and all the display screens can be spliced into a whole seat display large screen to play media such as videos, animations and texts. In order to achieve the display effect of the whole seat display large screen on site, the embodiment adopts a wireless spread spectrum communication mode to connect to a plurality of display screens to complete program updating and command control of the seat display large screen, so that the seat display large screen display device can be applied to certain sites which cannot use wired connection, avoids layout troubles caused by wired connection of each display screen, and saves cost.
Fig. 8 is a schematic diagram of a display control system according to an embodiment of the present invention. The combination of the parts of the display control system is explained as follows:
the upper computer is provided with upper computer software and can be used for producing program data and exporting the program data to a mobile storage device, such as a USB flash disk; on the other hand, the plurality of display screens can be connected through wireless RF communication search so as to carry out initial configuration on the plurality of display screens. The interface of the upper computer software related to the embodiment is simple, the operation is simple, and the humanization is better.
The aviation case is internally provided with a data updating card. The data updating card is provided with a USB interface which can be connected to the USB flash disk, and the program data transmitted to the USB flash disk is sent to the plurality of display control cards in a wireless spread spectrum communication mode so as to realize the program updating operation on the display screen. In addition, the data updating card is also provided with a human-computer interaction module, such as a key. And the control functions of correspondingly playing and switching programs, switching screens and the like are realized by pressing the keys. The data update card that this embodiment provided is strong, and its carries on the android system, and the operation is more stable.
And a plurality of display screens, as shown in fig. 9, each display screen for example comprises a display control card and an LED display screen body connected to the display control card. Wherein, the display control card includes for example: an ARM9 processor, a Lora module, an FPGA, Nand-Flash (Flash memory), a DDR2 (dynamic random access memory) and a gigabit port (not shown in the figure).
The Lora module is the core and key of the whole display control card for data communication, and the display control card is mainly communicated with the data updating card through the Lora module and used for receiving program data and/or command data sent by the data updating card in a wireless spread spectrum mode.
The ARM9 processor is used for receiving input data sent by the Lora module, analyzing the input data and transmitting the analyzed input data to the FPGA, so that program updating and/or command control and other operations are achieved, wherein when the input data are program data, the ARM9 processor can further store the program data to Nand-Flash connected with the processor. The program data is stored in a U disk after being manufactured by an upper computer, and the program data is sent to each display control card through a Lora module of a data updating card after the U disk is inserted into a USB interface of the data updating card.
After receiving the analyzed data sent by the ARM9 processor, the FPGA cooperates with the high-speed cache DDR2 to drive the LED lamp panel to display through the RGB interface output.
The ARM9 processor is provided with a USB interface for connecting with a USB flash disk to analyze program data in the USB flash disk as an input channel of the program data so as to prevent the failure of program data transmission through the Lora module.
In a specific implementation manner of the display control system provided in this embodiment, the steps of the display control system implementing the display control method are as follows:
(i) program data are generated on the upper computer software, and then the program data are stored in the U disk. The display screen is installed on the seat after initial program data are pre-stored on the display screens, display coordinate information of each display screen does not need to be preset for each display screen for convenience of installation, and after each display screen is installed and powered on, the display screen can flicker first and then turn black.
(ii) And performing initial configuration on the plurality of display screens, namely configuring display coordinate information of the plurality of display control cards. After the upper computer retrieves all the display screens through the wireless RF mechanism, the display control card of any display screen is clicked on the user interface of the upper computer software, the display screen corresponding to the selected display control card is lightened, the actual coordinate information of the current corresponding display screen is input on the user interface of the upper computer software, and the actual coordinate information is sent to the corresponding display control card through the wireless RF mechanism to be stored. And repeating the steps until the display coordinate information of all the display control cards is configured. And then, synchronizing the time information of all the display control cards, starting program playing through upper computer software at the moment, and synchronously playing the same program content in real time by all the display screens.
(iii) The field program is updated, put a data update card in the aviation case, insert the USB flash disk that stores program data into the data update card, the data update card can be according to predetermined display screen quantity with this with program data transmission to a plurality of display control cards in order to carry out the program update, the display control card of a plurality of display screens can be according to the display coordinate information display content of self corresponding pixel, thereby realize the program update, when the data update card successfully sent program data to a plurality of display control cards, the signal lamp that sets up on the aviation case can flash.
In addition, a key is also arranged on the data updating card, and the user presses the key once, correspondingly, the data updating card starts to start 1 time of searching and transmitting program data. Certainly, it may also be configured that after the data update card is inserted into the usb disk, the program data is automatically updated in a circulating manner to complete program update of multiple display screens, so as to ensure that all display screens complete program update successfully, wherein each time the signal lamp flashes, it indicates that the data update card completes one round of program update, and when the usb disk is pulled out, the circulating update is stopped. It should be noted that, for the display screen that has completed the program update, the program update operation does not need to be repeated.
In addition, the data update card in the aviation case also supports the transmission of command data, for example, a human-computer interaction module, such as a key, is arranged on the data update card, and a user presses the key to realize the operations of program switching and the like. Specifically, after receiving input data through the Lora module, the display control card analyzes the received input data and judges the type of the analyzed data, and if the analyzed data is judged to be command data, corresponding command operation is executed; and if the analyzed data is judged to be program data, updating the program.
And the display control card updates the program according to the program data to judge the position of the display control card in the whole seat display large screen according to the display coordinate information of the display control card, so that the picture of the corresponding pixel point is displayed.
The display control card executes corresponding command operation according to the command data, and the command operation comprises the following steps:
program switching. The data updating card in the aviation case is provided with a program switching key, a user presses the program switching key, and the data updating card sends a program switching instruction to a plurality of display screens through the Lora module according to an instruction protocol so that all the display screens under the Lora module receive the program switching instruction, and therefore synchronous program switching is achieved.
And searching points randomly. The data updating card in the aviation case is provided with a random seek point key, a user presses the random seek point key, the data updating card can generate a random number, for example, display coordinate information of a certain display control card, a display screen corresponding to the display coordinate information can be lightened, and other display screens are in an off state. After the random point searching function is started, if a normal program needs to be played, a program playing instruction is issued again, and the method can well realize the interaction with the field audience.
And thirdly, switching the screen. The data updating card in the aviation case is provided with a switch screen key, a user presses the switch screen key, the data updating card sends a switch screen instruction to a plurality of display screens through the Lora module according to an instruction protocol, and all the display screens under the Lora module receive the switch screen instruction, so that the display screens are turned on or turned off. It should be noted that turning off the display screen, which is mentioned here, only turns the display screen black, and is not an operation of turning off the power supply.
In summary, the display control system provided in this embodiment performs program updating and command control on multiple display screens in a wireless spread spectrum communication manner, so as to avoid the complicated steps that the display control cards of the display screens are wired to the upper computer to perform program updating and command control in the related art solutions; the hardware cost is reduced, and the operation is more flexible; and the whole display control system is simple to build, and the efficiency of the realized display control method is higher.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
So far, the principle and implementation of the display control method, the data update card, the display control card and the display control system of the present invention are explained in the present document by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention, and the scope of the present invention should be subject to the appended claims.
Claims (15)
1. A display control method, comprising:
(i) acquiring data to be transmitted;
(ii) carrying out protocol conversion on the data to be sent to obtain converted data;
(iii) and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to perform corresponding operation.
2. The display control method according to claim 1, wherein in the step (i), the data to be transmitted is program data, the display control method further comprising:
judging whether each display screen in the plurality of display screens successfully receives the converted data;
and (e) when it is judged that any one of the plurality of display screens does not successfully receive the converted data, responding to a user key operation or automatically repeating the steps (i) to (iii) until each of the plurality of display screens successfully receives the converted data.
3. The display control method according to claim 1, wherein in the step (i), the data to be transmitted is command data; the step (iii) specifically includes:
and sending the converted data to a plurality of display screens in a wireless spread spectrum communication mode so that the plurality of display screens can respectively receive and analyze the converted data to carry out the operation of synchronously switching programs or changing the display state.
4. A data update card, comprising:
the processor is used for acquiring data to be sent and carrying out protocol conversion on the data to be sent to obtain converted data;
and the wireless spread spectrum communication module is connected with the processor and is used for sending the converted data to a plurality of display screens within the working range of the wireless spread spectrum communication module in a wireless mode so as to be respectively received and analyzed by the display screens to perform corresponding operation.
5. The data update card of claim 4, wherein the processor is provided with a mobile storage device interface for connecting a mobile storage device to obtain program data as the data to be transmitted.
6. The data update card of claim 4, further comprising:
and the human-computer interaction module is connected with the processor and used for responding to user operation to generate a human-computer interaction instruction to the processor so that the processor can generate command data as the data to be sent.
7. The data update card of claim 6, wherein the human-computer interaction module comprises:
the first key is used for generating a first instruction to the processor so that the processor can control the display screens to update programs;
the second key is used for generating a second instruction to the processor so that the processor can control the display screens to synchronously switch programs;
and the third key is used for generating a third instruction to the processor so that the processor can control the plurality of display screens to change the display state of the display screen body of the processor.
8. A display control card, comprising:
a non-volatile memory;
a volatile memory;
the wireless spread spectrum communication module is used for receiving input data in a wireless spread spectrum communication mode;
the processor is connected with the wireless spread spectrum communication module and the nonvolatile memory and is used for receiving and analyzing the input data to obtain analyzed data and carrying out corresponding operation according to the analyzed data;
and the programmable logic device is respectively connected with the processor and the volatile memory and is used for driving and controlling the display screen body.
9. The display control card of claim 8, wherein the processor is specifically configured to:
judging the type of the analyzed data;
when the analyzed data is judged to be program data, updating the program stored in the nonvolatile memory according to the program data;
and when the analyzed data is judged to be command data, carrying out corresponding command operation according to the command data.
10. The display control card of claim 9, wherein the processor is provided with a removable storage device interface for connecting a removable storage device as an input channel of the program data.
11. A display control system, comprising:
the data updating card is used for acquiring data to be sent, carrying out protocol conversion on the data to be sent to obtain converted data and sending the converted data in a wireless spread spectrum communication mode;
a plurality of display screens dispersedly arranged at different positions; wherein each of the plurality of display screens comprises:
a display screen body;
the display control card is connected with the display screen body and used for receiving the converted data sent by the data updating card in a wireless spread spectrum communication mode and analyzing the converted data to perform corresponding operation;
the data update card is the data update card according to any one of claims 5 to 8, and the display control card is the display control card according to any one of claims 9 to 11.
12. The display control system according to claim 11, comprising:
the wireless spread spectrum communication module of the data updating card and the wireless spread spectrum communication module of the display control card are Lora modules respectively, and the wireless spread spectrum communication module of the data updating card and the wireless spread spectrum communication module of the display control card are configured with the same channel, address and group ID.
13. The display control system according to claim 12, characterized in that the display control system further comprises:
the data updating card is arranged in the aviation box;
the aviation case is further provided with a signal lamp which is connected to the data updating card and used for indicating whether each display screen in the plurality of display screens successfully receives the converted data.
14. The display control system according to claim 13, characterized in that the display control system further comprises:
the upper computer is used for:
acquiring a plurality of display screen information respectively corresponding to the plurality of display screens in a wireless mode, wherein each display screen information comprises an identification code and initial position coordinate information;
displaying the plurality of display screen information;
updating the initial position coordinate information in the displayed plurality of display screen information to obtain a plurality of updated display screen information respectively corresponding to the plurality of display screens, wherein each updated display screen information comprises the identification code and target position coordinate information corresponding to the identification code;
sequencing the updated display screen information according to the target position coordinate information in the updated display screen information;
after the sorting is carried out, display coordinate assignment is respectively carried out on the plurality of updated display screen information so as to obtain a plurality of display coordinate information which are in one-to-one correspondence with the plurality of updated display screen information; and
and sending the plurality of updated display screen information and the plurality of display coordinate information which corresponds to the plurality of updated display screen information one to the plurality of display screens.
15. The display control system according to claim 14, wherein each display screen is configured to capture program data by using the corresponding display coordinate information and display the captured program data.
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant before: Xi'an NovaStar Tech Co.,Ltd. |
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Application publication date: 20200922 |