CN114613282A - Integrated board card and display screen control system - Google Patents

Integrated board card and display screen control system Download PDF

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Publication number
CN114613282A
CN114613282A CN202011449284.4A CN202011449284A CN114613282A CN 114613282 A CN114613282 A CN 114613282A CN 202011449284 A CN202011449284 A CN 202011449284A CN 114613282 A CN114613282 A CN 114613282A
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China
Prior art keywords
receiving
module
power
power supply
processing unit
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CN202011449284.4A
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Chinese (zh)
Inventor
王勇
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Qstech Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Qstech Co Ltd
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Application filed by Guangzhou Shiyuan Electronics Thecnology Co Ltd, Qstech Co Ltd filed Critical Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority to CN202011449284.4A priority Critical patent/CN114613282A/en
Publication of CN114613282A publication Critical patent/CN114613282A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention discloses an integrated board card and a display screen control system, wherein the integrated board card is used for driving a display screen and comprises a switch board, a power module and a receiving processing module are integrated on the switch board, the power module comprises at least one group of power supplies, and the receiving processing module comprises at least one group of receiving processing units; the power module is fixed on the adapter plate, is close to the first concave groove and is far away from the second concave groove, the receiving processing module is fixed on the adapter plate, is close to the second concave groove and is far away from the first concave groove, and the power module and the receiving processing module are arranged adjacently. The integrated board card that this embodiment provided simple structure, stability is high, and the integrated level is high, and the product form is good, and the design in concave groove makes the adapter plate dismantle or be convenient for operator's gripping when installing, and can subtract heavy to the adapter plate.

Description

Integrated board card and display screen control system
Technical Field
The embodiment of the invention relates to a circuit design technology, in particular to an integrated board card and a display screen control system.
Background
With the increasing application of Light Emitting Diode (LED) display screens, especially in some special places, such as military operation command display, large-scale performance, live broadcast, etc., the requirements for the reliability of the display screens are higher and higher, and low-fault and maintenance-free LED display screens are favored by people.
Fig. 1 is a schematic structural diagram of a power supply system and a control system of a conventional LED display screen, and as shown in fig. 1, a conventional design of a power supply and control portion of the LED display screen includes: the system comprises an AC-to-DC power supply, a receiving card, a switching board, a signal wire, a DC current wire, a state monitoring board, an RJ45 interface and the like. The adapter board, the power supply and the connecting line thereof are all discrete devices which are connected with each other and are subordinate to each other.
According to the practical scheme, the connectors are more, so that the reject ratio of the connector is high, the integration level is not high, the overall occupied space is large, the product form is influenced, and the device installation and combination are time-consuming and labor-consuming; the appearance is not beautiful; poor overall stability, etc.
Disclosure of Invention
The embodiment of the invention provides an integrated board card and a display screen control system, which are simple in structure, high in stability, high in integration level and good in product form.
In a first aspect, an embodiment of the present invention provides an integrated board card, where the integrated board card is used to drive a display screen, the board card includes a patch panel, a power module and a receiving processing module are integrated on the patch panel, the power module includes at least one group of power supplies, and the receiving processing module includes at least one group of receiving processing module;
the power module is fixed on the adapter plate, is close to the first concave groove and is far away from the second concave groove, the receiving and processing module is fixed on the adapter plate, is close to the second concave groove and is far away from the first concave groove, and the power module and the receiving and processing module are adjacently arranged.
In a second aspect, an embodiment of the present invention provides a display screen control system, where the system includes a sending card, a display screen, and an integrated board card as described in any one of the first aspects above;
the sending card is used for sending a data packet to the receiving card in the integrated board card;
the integrated board card is used for converting the data packet into an output signal and sending the output signal to the display screen;
and the display screen is used for displaying the output signal.
In the integrated board card and the display screen control system, the integrated board card is used for driving the display screen and comprises a switch board, a power module and a receiving processing module are integrated on the switch board, the power module comprises at least one group of power supplies, and the receiving processing module comprises at least one group of receiving processing units; the power module is fixed on the adapter plate, is close to the first concave groove and is far away from the second concave groove, the receiving processing module is fixed on the adapter plate, is close to the second concave groove and is far away from the first concave groove, and the power module and the receiving processing module are arranged adjacently. The integrated board card that this embodiment provided simple structure, stability is high, and the integrated level is high, and the product form is good, and the design in concave groove makes the adapter plate dismantle or be convenient for operator's gripping when installing, and can subtract heavy to the adapter plate.
Drawings
FIG. 1 is a schematic structural diagram of a power supply system and a control system of a conventional LED display screen
Fig. 2 is a block diagram of an integrated board card according to an embodiment of the present invention;
fig. 3 is a block diagram of another integrated board card according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a work flow of an integrated board card according to an embodiment of the present invention;
fig. 5 is a block diagram of a display screen control system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Fig. 2 is a block diagram of an integrated board card according to an embodiment of the present invention, where the integrated board card is suitable for controlling a display screen to display. The integrated board card is generally integrated in a whole machine product.
The board card refers to designing an electronic component on a PCB so that the electronic component has expected characteristics; integration is a relative concept, which refers to a certain integration level, and does not limit all components to be designed on a PCB in a highly integrated manner (such as SMT patch). Furthermore, the integrated board card is used for driving the display screen. The integrated board card can be used for a display component, particularly an LED display screen, and is used as a driving part of the LED display screen.
The whole machine product comprises an LED display screen, a Cathode Ray Tube (CRT) display screen, an LCD (liquid Crystal display) display screen, a three-dimensional (3D) display screen and the like. The whole machine product also comprises a personal computer, a desktop computer, wearable equipment, a television, an intelligent terminal and other display equipment comprising any display screen. In this embodiment, the display screen is an LED display screen.
The LED display screen is an electronic display screen formed by LED lattices, the display content forms of the screen, such as characters, animations, pictures and videos, are changed in time by the red and green lamp beads which are turned on and off, and the display control of the components is carried out through a modular structure. The LED display screen is mainly divided into a display module, a control system and a power supply system.
The working principle of the LED display screen is briefly described below.
The LED display screen is a new type of information display medium, which is a planar display screen composed of LED dot matrix modules or pixel units. Taking an 8 × 8 dot matrix LED display screen as an example for explanation, 64 LEDs are required for an 8 × 8 dot matrix, and each LED is placed at an intersection of a row line and a column line, and when a corresponding row is set to a high level and a corresponding column is set to a low level, the corresponding diode is turned on. For example, when a character is to be displayed, the corresponding diode can be lighted up according to the strokes forming the character, thereby achieving the purpose of displaying the character.
As shown in fig. 2, the board card includes an adapter board 1, a power module 10 and a receiving processing module 20 are integrated on the adapter board, the power module 10 includes at least one group of power supplies, and the receiving processing module 20 includes at least one group of receiving processing modules; the adapter plate is provided with a first concave groove 101 and a second concave groove 102, the power module 10 is fixed on the adapter plate 1, is close to the first concave groove 101 and is far away from the second concave groove 102, the receiving processing module 20 is fixed on the adapter plate 1, is close to the second concave groove 102 and is far away from the first concave groove 101, and the power module 10 and the receiving processing module 20 are arranged adjacently.
In one embodiment, the power module 10 includes a set of power sources, and the receiving processing module 20 includes two sets of receiving processing modules, that is, the same set of power sources respectively supplies power to the two sets of receiving processing modules, so that the two receiving processing modules backup each other, and the fault tolerance of the integrated board card is improved.
In one embodiment, power module 10 includes two sets of power sources, and receive processing module 20 includes one set of receive processing modules, i.e., two sets of power sources simultaneously provide power to one set of receive processing modules. Therefore, the two power supplies can be mutually backed up, and the uninterrupted power supply of the online two-way parallel operation is realized.
In one embodiment, the power module 10 includes two sets of power sources, and the receive processing module 20 includes two sets of receive processing modules, i.e., two sets of power sources simultaneously supply power to two sets of receive processing modules. Therefore, the two power supplies are mutually backed up, the two receiving and processing modules are mutually backed up, the uninterrupted power supply of the online two-way parallel operation is realized, and meanwhile, the fault tolerance of the integrated board card is improved.
Further, as shown in fig. 2, the adapter plate is provided in an H shape. That is, the main body of the adapter plate is rectangular, and the adapter plate has two long sides and two short sides, and the two short sides are respectively provided with a first concave groove 101 and a second concave groove 102. The concave groove is a rectangular notch in the width direction of the adapter plate body.
The concave groove can be conveniently grasped by an operator when the adapter plate is detached or installed, and the weight of the adapter plate can be reduced. The adapter plate in the product adopted in practice generally carries out necessary structural improvement in order to adapt to different mounting structures, and the special rectangular structure adopted by the adapter plate is suitable for being applied to a box-type LED display device, so that on one hand, the integration level is higher, the integral thickness of the product can be reduced, and the weight of the product is reduced; on the other hand, the higher the integration level, the more favorable the mass production and installation, so that the LED display screen sold in the form of engineering installation tends to become a modular LED display device capable of standardization, which is favorable for market popularization and is suitable for new sale modes, thereby having great commercial prospect.
In one embodiment, another integrated board card is provided. Fig. 3 is a block diagram of another integrated board card according to an embodiment of the present invention, and as shown in fig. 3, the power module 10 includes: the first power supply 11, the second power supply 12, the receiving processing module 20 includes: a first reception processing unit 21 and a second reception processing unit 22; all components of the first power supply are fixed in a first power supply integration area of the adapter plate, all components of the second power supply are fixed in a second power supply integration area of the adapter plate, all components in the first receiving and processing unit are fixed in a first receiving and integration area of the adapter plate, and all components in the second receiving and processing unit are fixed in a second receiving and integration area of the adapter plate; the adapter plate is provided with a circuit which is electrically connected with the power supply module and the receiving and processing module.
The auxiliary function circuit of the first power supply may be disposed entirely or partially within the first power supply integrated area, or disposed outside the first power supply integrated area. The circuit of the auxiliary function of the second power supply may be entirely or partially disposed within the second power supply integrated area, or the circuit of the auxiliary function of the second power supply may be disposed outside the second power supply integrated area. The circuits of the auxiliary functions of the first reception processing unit may be disposed entirely or partially within the first reception card integrated area, or the circuits of the auxiliary functions of the first reception processing unit may be disposed outside the first reception card integrated area. The circuits of the auxiliary functions of the second reception processing unit may be disposed entirely or partially within the second reception card integrated area, or the circuits of the auxiliary functions of the second reception processing unit may be disposed outside the second reception card integrated area. That is, the positions of the circuits of the first power supply, the second power supply, the auxiliary functions of the first reception processing unit and the second reception processing unit are not necessarily required to be provided in the corresponding integrated areas.
Further, through integrative integrated first power on the keysets, the second power, processing unit is received to first receipt processing unit and second, make first power, all components and parts of second power and all components and parts of first receipt processing unit and second receipt processing unit all are fixed on the keysets, the socket quantity on the keysets has greatly been reduced, and then keysets and first power, the second power, first receipt processing unit, the stability of being connected between the processing unit is received to the second, in addition, integrative integrated structure can make the integrated circuit board realize full automated production, guarantee the uniformity of product, promote the quality of product.
The integrated board card can distribute all components of the first power supply, the second power supply, the first receiving processing unit and the second receiving processing unit on the adapter board, and each functional part of the first power supply, the second power supply, the first receiving processing unit and the second receiving processing unit does not need to be independently designed into one part, so that parts such as a shell required by independent part design are omitted, and the integrated board card is further thinned.
The first power supply and the second power supply have the same internal configuration, have the same image information processing function, and output signals, and the first reception processing unit and the second reception processing unit have the same internal configuration, have the same image information processing function, and output signals.
In one embodiment, the power module 10 further includes an ac input interface electrically connected to the first power source and the second power source, respectively.
In this embodiment, the power module includes only one ac access interface, that is, the first power supply and the second power supply are both connected to an external ac power supply through the same ac access interface. By the arrangement, the power supply connection requirement can be met by only one alternating current input interface, devices are saved, the layout space of the circuit board is saved, and more electronic components can be conveniently arranged on the circuit board.
In one embodiment, the power module 10 further includes a first ac input interface connected to the first power source and a second ac input interface connected to the second power source.
In this embodiment, the power module includes two ac access interfaces, that is, the first power supply and the second power supply are both connected to an external ac power supply through two different ac access interfaces. By the arrangement, after one AC input interface fails, the normal operation of the integrated board card cannot be influenced.
In one embodiment, as shown in fig. 3, the first receiving processing unit 21 includes a first signal input interface 211 and a first processor 212, and the second receiving processing unit 22 includes a second signal input interface 221 and a second processor 222. Wherein, the signal access interface adopts RJ45 interface.
In this embodiment, the first receiving and processing unit and the second receiving and processing unit both include a signal access interface and a processor, so that the two receiving and processing units can respectively and independently operate without mutual influence. For example, the first signal input interface 211 fails and does not affect the signal received by the second signal input interface 221.
In one embodiment, the first receiving processing unit includes a first signal input interface and a first processor, and the second receiving processing unit includes a second processor electrically connected to the first signal input interface. The first receiving and processing unit and the second receiving and processing unit share a signal input interface and are connected with an external sending unit.
In this embodiment, the first receiving and processing unit and the second receiving and processing unit only include a signal access interface and a processor, so that a single processor can be connected with an external sending unit through a signal access interface, and only one signal input interface can meet the signal transmission requirement, thereby saving devices, saving the layout space of the circuit board, and facilitating the layout of more electronic components on the circuit board.
In one embodiment, as shown in fig. 3, the first power integration region and the second power integration region are adjacently disposed along the width direction of the interposer; the first receiving integrated area is arranged on one side of the first power supply integrated area along the length direction of the adapter plate, and the second receiving integrated area is arranged on one side of the second power supply integrated area along the length direction of the adapter plate. The integrated circuit board is high in integration level and good in product form due to the arrangement.
In one embodiment, as shown in fig. 3, a power load adjusting module 30 is further integrated on the interposer 1, and the power load adjusting module 30 is electrically connected to the first power source and the second power source and is used for adjusting the power supply states of the first power source and the second power source.
Further, when the power load adjusting module 30 monitors that the first power supply 11 and the second power supply 12 work normally, the first power supply 11 and the second power supply 12 are controlled to supply power to the first receiving and processing module 21 and the second receiving and processing module 22 at the same time; when the power load adjusting module 30 monitors that the first power supply 22 fails, the second power supply 12 is controlled to supply power to the first receiving and processing module 21 and the second receiving and processing module 22; when the power load adjusting module 30 monitors that the second power supply 12 fails, it controls the first power supply 11 to supply power to the first receiving and processing module 21 and the second receiving and processing module 22.
In this embodiment, when the first power supply 11 and the second power supply 12 both work normally, the first power supply 11 and the second power supply 12 simultaneously supply power to the first receiving and processing module 21 and the second receiving and processing module 22. In the first power supply 11 and the second power supply 12, after one of the power supplies is in a failure state, the other normal power supply supplies power to the first receiving card and the second receiving card.
The power supply unit is used for supplying power to the display screen control system. The first power supply 11 and the second power supply 12 each output direct current. Specifically, the first power source 11 and the second power source 12 are both ac to dc power sources. Namely, the first power supply 11 and the second power supply 12 both receive alternating current input by external alternating current, and convert the alternating current into direct current to supply power to the display screen control system.
Further, after the alternating voltage is connected to the power module, the alternating voltage is input by inputting a wide voltage range commercial power, the first power supply 11 and the second power supply 12 work simultaneously through internal double power supplies, and the first power supply 11 and the second power supply 12 output and supply power to the control circuit simultaneously. The control circuit comprises a first receiving and processing unit, a second receiving and processing unit, other interfaces and the like.
In this embodiment, the power load adjusting module 30 is configured to detect output load states of the first power source 11 and the second power source 12, and feed back the output load states to the first power source 11 and the second power source 12. The first power supply 11 and the second power supply 12 respectively acquire respective load states.
When the two load states are normal states, the first power supply 11 and the second power supply 12 work simultaneously and output direct current; the dc power output by the first power supply 11 and the second power supply 12 may or may not be current-share controlled.
When one load state is an abnormal state, after the failure of the power source is determined, the failed power source stops outputting, and the other normal power source continues to supply power, so that the uninterrupted power supply of the online two-way parallel operation is realized. The scheme of dual power supply is that no matter what abnormality occurs in one power supply, the normal work of the other power supply is not influenced; meanwhile, the outputs of the two paths of power supply units are independent and cannot influence each other.
The failure of the power supply means that the power supply can not provide direct current meeting the requirements of the control system. For example: too high or too low a dc voltage may cause the power supply unit to fail.
Compared with the backup power supply system in the prior art, after one path of power supply fails, the other path of normal power supply is switched to supply power. In the embodiment, two power supplies are adopted for supplying power simultaneously, and after one power supply fails, the output is stopped, and the normal work of the other power supply is not influenced.
In one embodiment, a signal selection module 40 is further integrated on the interposer 1, a circuit electrically connecting the signal selection module 40 and the receiving processing module 20 is disposed on the interposer, and a circuit electrically connecting the signal selection module 40 and the power module 10 is disposed on the interposer 1.
The signal selection module 40 is disposed between the receiving and processing module and the lamp panel interface, and is configured to select an output signal output to the display screen.
In one embodiment, the signal selection module selects the signal of the first reception processing unit and/or the second reception processing unit as the output signal.
In one embodiment, when the first receiving processing unit and the second receiving processing unit work in a common output mode, the signal selection module selects a signal output by the first receiving processing unit and the second receiving processing unit as an output signal; the first receiving processing unit and the second receiving processing unit work in a backup mode, the signal selection module selects signals of the first receiving processing unit or the second receiving processing unit as output signals, and when the first receiving processing unit fails, the signal selection unit selects signals of the second receiving processing unit as output signals; the first receiving processing unit and the second receiving processing unit work in a backup mode, and when the second receiving processing unit breaks down, the signal selection unit selects the signal of the first receiving processing unit as an output signal.
In this embodiment, the common output mode refers to the determination of the signals output by the first receiving processing unit and the second receiving processing unit in common by the content displayed in the display screen, that is, a part of the screen of the display screen displays the output signal output by the first receiving processing unit, and the remaining part of the screen of the display screen displays the output signal output by the second receiving processing unit.
Specifically, the display area of the output signal of the first receiving and processing unit in the display screen and the display area of the output signal of the second receiving and processing unit in the display screen are complementary to each other. For example: the output signal of the first receiving processing unit is displayed in the left half display area of the display screen, and the output signal of the second receiving processing unit is displayed in the right half display area of the display screen. The output signal common to both receiving processing units determines the display content of the entire display screen.
For example: the 2 receiving processing units display simultaneously, where the first receiving processing unit is responsible for displaying the display area of the upper half of the LED display screen, and the second receiving processing unit is responsible for displaying the display area of the lower half of the LED display screen. The display area of the LED display screen for each receiving and processing unit can be preset by the upper software, and there is a signal selection module 40 for signal selection. The technical scheme that the plurality of receiving and processing units simultaneously output and display can solve the common problems of low refreshing of the LED display screen, small field frequency of the supporting input source, small bit width of the supporting input source and the like caused by the large output display picture of the single card, and further improve the performance of the display screen.
It should be noted that the output signal of the second reception processing unit is the signal output by the first reception processing unit. The output signal of the first reception processing unit is a signal that is not output by the second reception processing unit. Specifically, the first half thread of the first receiving processing unit may output a signal, and the second half thread of the second receiving processing unit may output a signal. The display area of the output signal of the first reception processing unit in the display screen and the display area of the output signal of the second reception processing unit in the display screen may be set in advance. The two display areas can be the same in area and shape or different in shape. This embodiment is not limited.
In this embodiment, the backup mode means that the display content of the display screen is determined by the signal output by one of the receiving and processing units. If the two receiving and processing units are in normal working states, the signal selection module selects the signals of the first receiving and processing unit or the second receiving and processing unit as output signals.
Further, when the first receiving processing unit fails, the signal selection unit selects the signal of the second receiving processing unit as an output signal; the first receiving processing unit and the second receiving processing unit work in a backup mode, and when the second receiving processing unit breaks down, the signal selection unit selects the signal of the first receiving processing unit as an output signal.
The normal operation can be understood as that any state of the data packet communication state, the receiving card temperature state and the power supply voltage state is consistent with the corresponding normal state. The first processor and the second processor can acquire the communication state of the data packet, the temperature state of the receiving card and the voltage state of the power supply through a power failure state circuit, a power output voltage judgment state judgment circuit and other state judgment circuits.
In this embodiment, the signal output by the first receiving and processing unit as the output signal may be understood as displaying the output signal of the first receiving and processing unit on the whole LED display screen, that is, the content displayed on the whole LED display screen is output by the first receiving and processing unit. The signal output by the second receiving and processing unit is taken as an output signal, which means that the output signal of the second receiving and processing unit is displayed on the whole LED display screen, that is, the content displayed on the whole LED display screen is output by the second receiving and processing unit.
The failure state can be understood as that any state of the data packet communication state, the receiving card temperature state and the power supply voltage state is inconsistent with the corresponding normal state. For example: and if the temperature of the receiving card is detected to be 70 ℃ and the temperature of the receiving card in the normal state is 40-60 ℃, determining that the temperature state of the receiving card is inconsistent with the normal state of the temperature of the corresponding receiving card, and determining that the receiving card is in the abnormal state.
If any one receiving processing unit works in a fault state, after negotiation, the two receiving processing units determine that the normal receiving processing unit outputs the display signal, and the abnormal receiving processing unit stops outputting the signal. Therefore, the product failure rate can be reduced, and the product quality is improved.
In an embodiment, fig. 4 is a flowchart of an integrated board provided in an embodiment of the present invention, and as shown in fig. 4, after an ac power source is input, a wide voltage range mains power is input, the two internal power sources (a first power source and a second power source) operate simultaneously, the first power source and the second power source output a dc power source, and simultaneously supply power to the first receiving and processing unit, the second receiving and processing unit, and the signal selection module, and finally after negotiation by the first receiving and processing unit and the second receiving and processing unit, one of the output signals is provided for an LED display screen to display.
Further, the power supply load adjusting module obtains the output load state and feeds the load state back to the first power supply and the second power supply. The two power supplies work simultaneously and output direct current simultaneously. When one of the power supplies fails, the power supply stops outputting, and the other power supply continues to supply power, so that the on-line two-way parallel operation is realized without interruption. The design of dual power supply is that no matter what abnormality occurs in one power supply, the normal work of the other power supply is not influenced; meanwhile, the first power supply and the second power supply need to be output independently and cannot influence each other.
Furthermore, the first receiving processing unit and the second receiving processing unit simultaneously detect the communication state of the data packet, the temperature state of the receiving card, the voltage state of the power supply and the like, perform information interaction through a communication interface between the first receiving processing unit and the second receiving processing unit, and determine the specific output signal condition through hardware program analysis, so that the normal use is not influenced during signal switching.
Specifically, if one of the receiving processing units cannot detect the normal signal, the other receiving processing unit is notified, after negotiation, the other receiving processing unit determines that the normal receiving processing unit outputs the display signal, and the abnormal receiving card stops outputting the signal.
Specifically, the signal selection module 40 can also be used for signal selection according to the setting of upper-end software, and the intelligent switching is performed by outputting and displaying any receiving processing unit or simultaneously displaying two receiving processing units. The simultaneous display means that one part of screens of the display screens displaying a part of area displays output signals output by the first receiving and processing unit, and the rest of screens of the display screens receives output signals output by the second receiving and processing unit. The method can solve the common problems of the LED display screen, such as low refreshing of the LED display screen, small field frequency of the supported input source, small bit width of the supported input source and the like, caused by large display picture output by a single card, and further improve the performance of the display screen.
Furthermore, the two receiving and processing units report the detected information such as the power state and the like to the upper end software at the same time, and a screen body user can maintain the screen body through the screen body state displayed on the software.
In one embodiment, the signal processing module includes an environment detection monitoring module and a fault query monitoring module 50; all components in the environment detection monitoring module are fixed on the adapter plate, and all components in the fault inquiry monitoring module are fixed on the adapter plate.
It should be noted that the environment detection monitoring module and the fault query monitoring module are arranged in rectangular boxes indicated by 50 in fig. 3. As shown in fig. 3, the environment detection monitoring module and the fault query monitoring module are disposed above the signal access interface 211.
The environment detection monitoring module is used for detecting a PM value in an environment used by the display screen. The fault inquiry monitoring module is used for monitoring the temperature, the humidity, the brightness and the voltage and the current of the display screen.
In one embodiment, the adapter card is further integrated with an interface module 60, and the interface module includes a plurality of lamp panel interfaces 61, a status display interface 62, a signal access interface 211 and a wireless interface 63; the plurality of lamp panel interfaces 61 are sequentially arranged along the length direction of the adapter plate, the signal access interface 211 is arranged adjacent to the first receiving integrated area, the wireless interface 63 is arranged adjacent to the second receiving integrated area, and the state display interface 62 is arranged adjacent to the second power supply integrated area.
In one embodiment, as shown in fig. 3, four lamp panel interfaces 61 are respectively disposed on two long sides of the adapter plate at intervals, and the four lamp panel interfaces 61 are disposed at equal intervals. Furthermore, a plurality of lightening holes are arranged on the adapter plate at intervals, the weight of the adapter plate can be lightened by arranging the lightening holes, heat dissipation on the adapter plate can be accelerated, and the heat dissipation efficiency is improved.
In one embodiment, the wireless interface 63 may be bluetooth, infrared or WIFI, or a combination of any two or three of bluetooth, infrared and WIFI, and the wireless interface 63 is disposed adjacent to the second receiving integrated area. Further, a second receiving integrated area is provided between the second power integrated area and the wireless interface 63.
In an embodiment, a display screen control system is provided, and fig. 5 is a structural diagram of the display screen control system provided in this embodiment, as shown in fig. 5, the system includes a sending card, a display screen, and an integrated board card as described in any one of the above embodiments; the sending card 41 is configured to send a data packet to the receiving card in the integrated board card; the integrated board card 42 is configured to convert the data packet into an output signal, and send the output signal to the display screen; the display screen 43 is used for displaying the output signal.
The transmitting card 41 is software in the control system. The transmitting card 41 is mainly used for transmitting the audio/video signals provided by the host or the controller to the receiving card in the integrated board 42, and the receiving card converts the audio/video signals into output signals and transmits the output signals to the LED display screen 43 for displaying.
The display screen includes an LED display screen, a Cathode Ray Tube (CRT) display screen, an lcd (liquid Crystal display) display screen, and a three-dimensional (3D) display screen.
The display screen can be applied to personal computers, desktop computers, wearable equipment, televisions, intelligent terminals and other equipment needing to be provided with the display screen.
Specifically, the sending card 41 is connected to a host computer or a controller, receives image information provided by the host computer or the controller, packages the image information and sends the packaged image information to the receiving card in the integrated board 42, unpacks the receiving card in the integrated board 42 and then performs image processing, and then controls on and off of different LEDs, so as to realize that the LED display screen displays audio and video signals.
In this embodiment, the number of the sending cards 41 may be one or more, and when the number of the sending cards 41 is more, the sending cards are all connected to the computer host or the controller, and can simultaneously receive the image information provided by the computer host or the controller, and package the image information to obtain a data packet. The plurality of transmission cards 41 have the same image information processing function, and output the same result. In the present embodiment, only the transmitting card is described, but not limited.
The connection relationship between the sending card 41 and the receiving card in the integrated board 42 may be an electrical connection or a wireless connection, and the connection relationship between the sending card 41 and the receiving card in the integrated board 42 is not limited in this embodiment. The sending card 41 only needs to be able to send packets to two receiving cards in the integrated board 42 without distinction.
The display screen control system provided by the embodiment of the invention can comprise the integrated board card provided by any embodiment of the invention, and has all functional modules and beneficial effects of the integrated board card.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (19)

1. An integrated board card is characterized in that the integrated board card is used for driving a display screen, the board card comprises an adapter plate, a power module and a receiving processing module are integrated on the adapter plate, the power module comprises at least one group of power supplies, and the receiving processing module comprises at least one group of receiving processing module;
the power module is fixed on the adapter plate, is close to the first concave groove and is far away from the second concave groove, the receiving and processing module is fixed on the adapter plate, is close to the second concave groove and is far away from the first concave groove, and the power module and the receiving and processing module are adjacently arranged.
2. The integrated board card of claim 1, wherein the interposer is configured in an H-shape.
3. The integrated board of claim 1, wherein the power module comprises: the receiving and processing module comprises a first power supply and a second power supply, and comprises: a first receiving and processing unit and a second receiving and processing unit;
all components of the first power supply are fixed in a first power supply integration area of the adapter plate, all components of the second power supply are fixed in a second power supply integration area of the adapter plate, all components in the first receiving and processing unit are fixed in a first receiving integration area of the adapter plate, and all components in the second receiving and processing unit are fixed in a second receiving integration area of the adapter plate; the adapter plate is provided with a circuit which is electrically connected with the power module and the receiving and processing module.
4. The integrated board of claim 3, wherein the power module further comprises an ac input interface, the ac input interface being electrically connected to the first power source and the second power source, respectively.
5. The integrated board of claim 3, wherein the power module further comprises a first AC input interface and a second AC input interface, the first AC input interface being coupled to the first power source and the second AC input interface being coupled to the second power source.
6. The integrated board card of claim 4 or 5, wherein the AC input interface is disposed at an edge of the first recessed slot.
7. The integrated board card of claim 3, wherein the first receiving and processing unit comprises a first signal input interface and a first processor, and the second receiving and processing unit comprises a second signal input interface and a second processor.
8. The integrated board of claim 3, wherein the first receiving processing unit comprises a first signal input interface and a first processor, and the second receiving processing unit comprises a second processor, and the second processor is electrically connected to the first signal input interface.
9. The integrated board card of claim 7 or 8, wherein the signal input interface is disposed at an edge of the second recessed slot.
10. The integrated board card of claim 3, wherein the first power integration area and the second power integration area are adjacently disposed along a width direction of the interposer; the first receiving integrated area is arranged on one side of the first power supply integrated area along the length direction of the adapter plate, and the second receiving integrated area is arranged on one side of the second power supply integrated area along the length direction of the adapter plate.
11. The integrated board card of claim 3, wherein a power load adjusting module is further integrated on the interposer, and the power load adjusting module is electrically connected to the first power supply and the second power supply and is configured to adjust power supply states of the first power supply and the second power supply.
12. The integrated board card of claim 11, wherein when the power load adjusting module monitors that the first power supply and the second power supply are working normally, the power load adjusting module controls the first power supply and the second power supply to supply power to the first receiving processing module and the second receiving processing module at the same time;
when monitoring that the first power supply fails, the power supply load adjusting module controls a second power supply to supply power to the first receiving and processing module and the second receiving and processing module;
and when the power supply load adjusting module monitors that the second power supply fails, the power supply load adjusting module controls the first power supply to supply power to the first receiving and processing module and the second receiving and processing module.
13. The integrated board card of claim 3, wherein a signal selection module is further integrated on the interposer, a circuit electrically connected to the signal selection module and the receiving and processing module is disposed on the interposer, and a circuit electrically connected to the signal selection module and the power module is disposed on the interposer.
14. The integrated board card of claim 13, wherein the signal selection module selects the signal of the first receiving and processing unit and/or the second receiving and processing unit as the output signal.
15. The integrated board card of claim 14, wherein when the first receiving processing unit and the second receiving processing unit operate in a common output mode, the signal selection module selects a signal output by the first receiving processing unit and the second receiving processing unit as an output signal;
the first receiving processing unit and the second receiving processing unit work in a backup mode, the signal selection module selects signals of the first receiving processing unit or the second receiving processing unit as output signals, and when the first receiving processing unit fails, the signal selection unit selects signals of the second receiving processing unit as output signals; the first receiving processing unit and the second receiving processing unit work in a backup mode, and when the second receiving processing unit breaks down, the signal selection unit selects the signal of the first receiving processing unit as an output signal.
16. The integrated board card of claim 3, wherein an environment detection monitoring module and a fault query monitoring module are further integrated on the adapter board;
all components in the environment detection monitoring module are fixed on the adapter plate, and all components in the fault inquiry monitoring module are fixed on the adapter plate.
17. The integrated board card of claim 1, wherein an interface module is further integrated on the adapter card, and the interface module comprises a plurality of lamp panel interfaces, a status display interface, a signal access interface, and a wireless interface;
the lamp panel interfaces are sequentially arranged along the length direction of the adapter plate, the signal access interface is arranged adjacent to the first receiving integrated area, the wireless interface is arranged adjacent to the second receiving integrated area, and the state display interface is arranged adjacent to the second power supply integrated area.
18. The integrated board card of claim 3, wherein the adapter board comprises a first power integration area, a second power integration area, a first receiving integration area, a second receiving integration area, and a switching output integration area, and the first power integration area is connected to the first receiving integration area and the second receiving integration area respectively; the second power supply integrated area is respectively connected with the first receiving integrated area and the second receiving integrated area; the first receiving integrated area and the second receiving integrated area are respectively connected with the switching output integrated area.
19. A display screen control system, characterized in that the system comprises a transmitting card, a display screen and an integrated board card according to any one of claims 1-18;
the sending card is used for sending a data packet to the receiving card in the integrated board card;
the integrated board card is used for converting the data packet into an output signal and sending the output signal to the display screen;
and the display screen is used for displaying the output signal.
CN202011449284.4A 2020-12-09 2020-12-09 Integrated board card and display screen control system Pending CN114613282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011449284.4A CN114613282A (en) 2020-12-09 2020-12-09 Integrated board card and display screen control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011449284.4A CN114613282A (en) 2020-12-09 2020-12-09 Integrated board card and display screen control system

Publications (1)

Publication Number Publication Date
CN114613282A true CN114613282A (en) 2022-06-10

Family

ID=81856224

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011449284.4A Pending CN114613282A (en) 2020-12-09 2020-12-09 Integrated board card and display screen control system

Country Status (1)

Country Link
CN (1) CN114613282A (en)

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