CN112988203B - Spliced screen drive board upgrading method and spliced screen - Google Patents
Spliced screen drive board upgrading method and spliced screen Download PDFInfo
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- CN112988203B CN112988203B CN202110538276.5A CN202110538276A CN112988203B CN 112988203 B CN112988203 B CN 112988203B CN 202110538276 A CN202110538276 A CN 202110538276A CN 112988203 B CN112988203 B CN 112988203B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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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
- G06F3/1423—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
- G06F3/1446—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 display composed of modules, e.g. video walls
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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Abstract
The invention discloses a method for upgrading a drive board of a spliced screen and the spliced screen, wherein the method comprises the steps that a plurality of display screens are sequentially connected in series to form the spliced screen; starting the spliced screen, and controlling the USB input port and the USB output port of the display screen to be communicated to form a serial passage; detecting an upgrade file by a USB input port of a first display screen of the spliced screen, and transmitting the upgrade file to a main chip of a driving board card in an nth display screen through a serial connection path; restarting the drive board card of the nth display screen after upgrading; and restarting the drive board card of the (n-1) th display screen after upgrading, and restarting the drive board card of the first display screen after upgrading in sequence. The invention can upgrade the drive board card without a network, and can upgrade the drive board cards of all the display screens by directly using a U disk without dismounting the spliced screen. The upgrading process is orderly queued, the condition of missing upgrading can not occur, and the upgrading efficiency is improved.
Description
Technical Field
The invention relates to the technical field of drive board upgrading of a spliced screen, in particular to a spliced screen drive board upgrading method and a spliced screen.
Background
After the spliced screen in the current market is put into use, due to product upgrading or customer requirements, the drive board card software of the spliced screen needs to be upgraded, and upgrading operation needs to be performed on the original spliced screen. In the prior art, the following methods are mainly used for upgrading the software of the drive board card of the spliced screen:
1. and upgrading is carried out through a network. Through the mode of network upgrading, the drive plate card that needs the concatenation screen has the network connection function.
2. And upgrading by using a USB flash disk. The mode is mainly performed under the condition that the drive board card does not support the network function or does not have a network in the application environment.
When the USB flash disk upgrading splicing screen driving board card is used, the splicing screens need to be detached one by one from the installed splicing wall, and the USB flash disk is inserted into the USB interface of each splicing screen driving board card to be upgraded one by one. A plurality of U disks can also be used, each U disk corresponds to one spliced screen, and then the U disks are upgraded together. The upgrading steps are complicated, and some spliced screens are easy to omit if the number of the spliced screens is large.
Disclosure of Invention
The invention aims to provide a spliced screen driving board upgrading method and a spliced screen, which can solve the problem that upgrading is omitted when the number of spliced screens is large in the prior art.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a method for upgrading a drive board of a tiled display, including the following steps:
a plurality of display screens are sequentially connected in series to form a spliced screen;
the spliced screen is started, and after the spliced screen meets the conditions, the display screen controls the USB input port to be communicated with the USB output port to form a serial passage;
detecting an upgrade file by a USB input port of a first display screen of the spliced screen, and transmitting the upgrade file to a main chip of a driving board card in an nth display screen through a serial connection path;
restarting the drive board card of the nth display screen after upgrading;
and restarting the drive board card of the (n-1) th display screen after upgrading, and restarting the drive board card of the first display screen after upgrading in sequence.
Further, the mode that a plurality of display screens establish ties in proper order does: and the USB output port of the first display screen is connected with the USB input port of the second display screen, the USB output port of the second display screen is connected with the USB input port of the third display screen, and the like is repeated until the USB output port of the (n-1) th display screen is connected with the USB input port of the nth display screen, the USB output port of the nth display screen is not connected, wherein n is greater than 1.
Further, after meeting the condition, the display screen controls the USB input port and the USB output port to communicate, including: the main chip of the driving board card in the mth display screen detects the voltage of the USB input port of the (m + 1) th display screen through the USB output port of the display screen, when the detected voltage is a set voltage, the main chip controls the USB input port of the mth display screen to be communicated with the USB output port, wherein m is more than or equal to 1 and less than n.
Further, the restarting of the drive board card of the nth display screen after upgrading comprises: and after receiving the upgrade file, the main chip of the drive board card in the nth display screen performs upgrade operation on the drive board card, the drive board card of the nth display screen is automatically restarted after the upgrade is completed, and the voltage of the USB input port of the nth display screen is 0 during the restart.
Further, the restarting of the drive board card of the (n-1) th display screen after upgrading comprises: when the main chip of the drive board card in the (n-1) th display screen detects that the voltage of the USB input port of the nth display screen is 0, the USB input port and the USB output port of the (n-1) th display screen are controlled to be disconnected, and the main chip of the drive board card in the (n-1) th display screen receives the upgrade file and restarts after the upgrade operation is completed.
In a second aspect, the invention provides a spliced screen, which comprises a plurality of display screens, wherein each display screen comprises a USB input port, a drive board card and a USB output port, the USB output port of a first display screen is connected with the USB input port of a second display screen, and the like is repeated until the USB output port of an n-1 th display screen is connected with the USB input port of an nth display screen; the drive board card comprises a main chip, and the main chip controls the connection or disconnection between the USB input port and the USB output port of the display screen to which the main chip belongs and controls the upgrade of the drive board card to which the main chip belongs.
Furthermore, the master chip detects the voltage of the USB input port of the next display screen through the USB output port of the display screen to which the master chip belongs, and controls the connection or disconnection between the USB input port and the USB output port of the display screen to which the master chip belongs according to the voltage value of the next USB input port.
Further, when the voltage of the USB input port of the next display screen is 0V, the main chip controls the USB input port and the USB output port of the display screen to be turned off, and when the voltage of the USB input port of the next display screen is the set voltage, the main chip controls the USB input port and the USB output port of the display screen to be connected.
Further, when the USB input port and the USB output port of the display screen are turned off and the main chip of the display screen detects an upgrade file, the main chip controls the driver board card of the display screen to be upgraded, which specifically includes:
after receiving the upgrade file, a main chip of a drive board card in the nth display screen carries out upgrade operation on the drive board card, the drive board card of the nth display screen is automatically restarted after the upgrade is finished, and the voltage of a USB input port of the nth display screen is 0 when the drive board card is restarted; when the main chip of the drive board card in the (n-1) th display screen detects that the voltage of the USB input port of the nth display screen is 0, the USB input port and the USB output port of the (n-1) th display screen are controlled to be disconnected, and the main chip of the drive board card in the (n-1) th display screen receives the upgrade file and restarts after the upgrade operation is completed; and analogizing in sequence until the drive board card of the first display screen is restarted after upgrading is completed.
Further, the set voltage is 5V.
According to the method for upgrading the spliced screen driving board and the spliced screen, the driving board card can be upgraded under the condition of no network. The spliced screen is formed by adopting a mode that USB ports of the spliced screen are connected in series, the spliced screen does not need to be detached, and a USB flash disk is directly connected into the first spliced screen of the spliced screen, so that all the drive board cards of the display screens can be upgraded. The upgrading process is orderly queued, the condition of missing upgrading can not occur, and the upgrading efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a series of display screens of the present invention;
FIG. 2 is a schematic view of the interior of a display screen according to the present invention;
FIG. 3 is a schematic view of the display screens of the present invention connected in series and in communication;
FIG. 4 is a schematic diagram of a display screen with the USB input port and the USB output port disconnected;
fig. 5 is a step diagram of the upgrade method of the tiled screen driving board of the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The invention discloses a method for upgrading a spliced screen driving board, which comprises the following steps:
and step S1, connecting a plurality of display screens in series in sequence to form a spliced screen.
Further, the mode that the display screen is established ties in proper order does: each display screen is provided with a USB input port and a USB output port, the USB output port of the first display screen is connected with the USB input port of the second display screen, the USB output port of the second display screen is connected with the USB input port of the third display screen, and the like, until the USB output port of the (n-1) th display screen is connected with the USB input port of the nth display screen, the USB output port of the nth display screen is not connected, wherein n is more than 1. As shown in fig. 1. The two display screens are connected through a USB data line.
And step S2, starting the spliced screen, and controlling the USB input port and the USB output port of the display screen to be communicated to form a serial passage after the spliced screen meets the conditions.
Before the spliced screen is started after power-on, the USB input port and the USB output port of the display screen are disconnected, as shown in FIG. 4.
Further, after meeting the conditions, the display screen controls the communication between the USB input port and the USB output port thereof to include:
the main chip of the driving board card in the mth display screen detects the voltage of the USB input port of the (m + 1) th display screen through the USB output port of the display screen, and when the detected voltage is the set voltage, the main chip controls the USB input port of the mth display screen to be communicated with the USB output port. M is more than or equal to 1 and less than n.
Further, the set voltage is 5V.
After the spliced screen is powered on and started, under a normal condition, the USB input ports of all the display screens have 5V voltage, and at the moment, the driving board cards of the display screens are in a starting state. The USB input port and the USB output port of each display screen are connected through a driving board card. And when the driving board card is started, the USB input port and the USB output port of the display screen are communicated. As shown in fig. 2. At the moment, the lines from the USB input port to the USB output port of the display screen are communicated. By parity of reasoning, the driving board card of each display screen detects and gets through the line from the USB input port to the USB output port. And until the USB output port of the last display screen cannot detect the started driving board card, the board card is the last board. The two display screens are connected through a USB data line. When the USB input ports of all the display screens are communicated with the USB output ports, all the display screens are connected in series to form a series passage.
And S3, detecting the upgrade file by the USB input port of the first display screen of the spliced screen, and transmitting the upgrade file to the main chip of the drive board card in the nth display screen through the serial connection path.
When the serial path is in a connected state, the upgrade file detected by the USB input port of the first display screen is directly transmitted to the main chip of the last display screen of the serial path and is read by the last main chip. The drive board cards of other display screens are equivalently short-circuited, and the upgrade files cannot be read by the main chips of the other display screens.
And step S4, restarting the drive board card of the nth display screen after upgrading.
The precondition for upgrading the drive board card of the display screen is that the USB input port and the USB output port of the display are disconnected, and the main chip of the display screen detects an upgrade file.
Further, the restart after the drive integrated circuit board of nth display screen upgrades includes: and after receiving the upgrade file, the main chip of the drive board card in the nth display screen performs upgrade operation on the drive board card, the drive board card of the nth display screen is automatically restarted after the upgrade is completed, and the voltage of the USB input port of the nth display screen is 0 during the restart.
And S5, restarting the drive board card of the (n-1) th display screen after upgrading, and restarting the drive board card of the first display screen after upgrading.
Further, the restarting of the drive board card of the (n-1) th display screen after upgrading comprises: when the main chip of the drive board card in the (n-1) th display screen detects that the voltage of the USB input port of the nth display screen is 0, the USB input port and the USB output port of the (n-1) th display screen are controlled to be disconnected, and the main chip of the drive board card in the (n-1) th display screen receives the upgrade file and restarts after the upgrade operation is completed.
When the driving board card of each display screen is restarted, the voltage of the USB input port of each display screen is 0V.
Therefore, the method for upgrading the drive board of the spliced screen can use a USB flash disk to be connected with the USB input port of the first display screen, and can finish the upgrading operation of the drive boards of all the display screens in the spliced screen. And the display screen does not need to be detached, and the condition of missing upgrading can be avoided.
The invention also provides a spliced screen which comprises a plurality of display screens, wherein each display screen comprises a USB input port, a driving board card and a USB output port, the USB output port of the first display screen is connected with the USB input port of the second display screen, and the like is repeated until the USB output port of the (n-1) th display screen is connected with the USB input port of the nth display screen. The drive board card comprises a main chip, and the main chip controls the connection or disconnection between the USB input port and the USB output port of the display screen to which the main chip belongs and controls the drive board card to which the main chip belongs to be upgraded.
Furthermore, the master chip detects the voltage of the USB input port of the next display screen through the USB output port of the display screen to which the master chip belongs, and controls the connection or disconnection between the USB input port and the USB output port of the display screen to which the master chip belongs according to the voltage value of the next USB input port.
Further, when the voltage of the USB input port of the next display screen is 0V, the master chip controls the USB input port and the USB output port of the display screen to be turned off, and when the voltage of the USB input port of the next display screen is the set voltage, the master chip controls the USB input port and the USB output port of the display screen to be connected.
Further, when the USB input port and the USB output port of the display screen are turned off and the main chip of the display screen detects that the upgrade file exists, the main chip controls the driver board card to upgrade.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (4)
1. A method for upgrading a spliced screen driving board is characterized by comprising the following steps:
a plurality of display screens are sequentially connected in series to form a spliced screen;
the spliced screen is started, and after the spliced screen meets the conditions, the display screen controls the USB input port to be communicated with the USB output port to form a serial passage;
detecting an upgrade file by a USB input port of a first display screen of the spliced screen, and transmitting the upgrade file to a main chip of a driving board card in an nth display screen through a serial connection path;
restarting the drive board card of the nth display screen after upgrading;
restarting the drive board card of the (n-1) th display screen after upgrading, and restarting the drive board card of the first display screen after upgrading in sequence;
after the condition is met, the display screen controls the USB input port and the USB output port to be communicated, and the method comprises the following steps: a main chip of a driving board card in the mth display screen detects the voltage of a USB input port of the (m + 1) th display screen through a USB output port of the display screen, when the detected voltage is a set voltage, the main chip controls the USB input port of the mth display screen to be communicated with the USB output port, wherein m is more than or equal to 1 and less than n;
the process of restarting the drive board card sequentially until the first drive board card is upgraded is as follows: after receiving the upgrade file, a main chip of a drive board card in the nth display screen carries out upgrade operation on the drive board card, the drive board card of the nth display screen is automatically restarted after the upgrade is finished, and the voltage of a USB input port of the nth display screen is 0 when the drive board card is restarted; when the main chip of the drive board card in the (n-1) th display screen detects that the voltage of the USB input port of the nth display screen is 0, the USB input port and the USB output port of the (n-1) th display screen are controlled to be disconnected, and the main chip of the drive board card in the (n-1) th display screen receives the upgrade file and restarts after the upgrade operation is completed; and analogizing in sequence until the drive board card of the first display screen is restarted after upgrading is completed.
2. The method for upgrading the drive boards of the spliced screen as claimed in claim 1, wherein the plurality of display screens are connected in series in sequence in a manner that: and the USB output port of the first display screen is connected with the USB input port of the second display screen, the USB output port of the second display screen is connected with the USB input port of the third display screen, and the like is repeated until the USB output port of the (n-1) th display screen is connected with the USB input port of the nth display screen, the USB output port of the nth display screen is not connected, wherein n is more than 1.
3. A spliced screen comprises a plurality of display screens and is characterized in that each display screen comprises a USB input port, a drive board card and a USB output port, the USB output port of a first display screen is connected with the USB input port of a second display screen, and the like until the USB output port of an n-1 th display screen is connected with the USB input port of an nth display screen; the driving board card comprises a main chip, and the main chip controls the connection or disconnection between a USB input port and a USB output port of the display screen to which the main chip belongs and controls the upgrading of the driving board card to which the main chip belongs;
the master chip detects the voltage of the USB input port of the next display screen through the USB output port of the display screen to which the master chip belongs, and controls the connection or disconnection between the USB input port and the USB output port of the display screen to which the master chip belongs according to the voltage value of the next USB input port; when the voltage of the USB input port of the next display screen is 0V, the main chip controls the USB input port and the USB output port of the display screen to be switched off, and when the voltage of the USB input port of the next display screen is set voltage, the main chip controls the USB input port and the USB output port of the display screen to be switched on;
when a USB input port and a USB output port of a display screen are turned off and a main chip of the display screen detects an upgrade file, the main chip controls a drive board card of the display screen to be upgraded, and the method specifically comprises the following steps:
after receiving the upgrade file, a main chip of a drive board card in the nth display screen carries out upgrade operation on the drive board card, the drive board card of the nth display screen is automatically restarted after the upgrade is finished, and the voltage of a USB input port of the nth display screen is 0 when the drive board card is restarted; when the main chip of the drive board card in the (n-1) th display screen detects that the voltage of the USB input port of the nth display screen is 0, the USB input port and the USB output port of the (n-1) th display screen are controlled to be disconnected, and the main chip of the drive board card in the (n-1) th display screen receives the upgrade file and restarts after the upgrade operation is completed; and analogizing in sequence until the drive board card of the first display screen is restarted after upgrading is completed.
4. The tiled screen of claim 3, wherein the set voltage is 5V.
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| CN202110538276.5A CN112988203B (en) | 2021-05-18 | 2021-05-18 | Spliced screen drive board upgrading method and spliced screen |
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| CN202110538276.5A CN112988203B (en) | 2021-05-18 | 2021-05-18 | Spliced screen drive board upgrading method and spliced screen |
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| CN112988203B true CN112988203B (en) | 2021-10-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102270148B (en) * | 2011-07-12 | 2013-12-18 | 广州视源电子科技股份有限公司 | Method for upgrading drive board of liquid crystal display screen |
| KR20140128122A (en) * | 2013-04-26 | 2014-11-05 | 주식회사 코아로직 | Automatic entrance device and method for upgrade boot mode |
| CN103246535B (en) * | 2013-04-26 | 2016-08-03 | 广州德浩科视电子科技有限公司 | A kind of upgrade method of mosaic screen upgrade-system |
| CN204926060U (en) * | 2015-09-01 | 2015-12-30 | 德浩荣基电子科技吉林有限公司 | Concatenation screen |
| CN205264319U (en) * | 2015-12-16 | 2016-05-25 | 上海影隆光电有限公司 | Liquid crystal concatenation screen of built -in upgrading function |
| US10951875B2 (en) * | 2018-07-03 | 2021-03-16 | Raxium, Inc. | Display processing circuitry |
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