CN116246572B - Multi-signal redundancy multifunctional display screen control system - Google Patents

Multi-signal redundancy multifunctional display screen control system Download PDF

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Publication number
CN116246572B
CN116246572B CN202310238976.1A CN202310238976A CN116246572B CN 116246572 B CN116246572 B CN 116246572B CN 202310238976 A CN202310238976 A CN 202310238976A CN 116246572 B CN116246572 B CN 116246572B
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signal
card
control card
information
input
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CN116246572A (en
Inventor
张裕
林国苗
张诗涵
黄莉花
郑巧慧
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ZHEJIANG FANGTAI DISPLAY TECHNOLOGY Ltd
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ZHEJIANG FANGTAI DISPLAY TECHNOLOGY Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

The invention provides a multi-signal redundancy multifunctional display screen control system, which comprises: the state detection module detects the current state of the control card in the first transmission link; the card locking module locks the appearance position of the first abnormal state in the parallel grid structure and locks and backs up the level control card; the sub-link changing module is used for determining the relation between the level control card and the upper control card and the relation between the level control card and the lower control card, and selecting a first reasonable control card to change the sub-link; the second transmission display module is used for continuously analyzing the control card in the next abnormal state when the control card is normally connected; the third transmission display module screens the second reasonable control card when abnormal connection is performed, and establishes a new transmission link between the first reasonable control card and the second reasonable control card; and the function control module analyzes the temporary storage signal and the working signal and issues a function control instruction. And the signal redundancy is ensured by carrying out multiple backups on the display information, and the effective display of the display screen is ensured.

Description

Multi-signal redundancy multifunctional display screen control system
Technical Field
The invention relates to the technical field of automatic control processing, in particular to a multi-signal redundancy multifunctional display screen control system.
Background
With the increasing density of LED display screens, more and more pixels of unit display modules are displayed, and the conventional gigabit network cable transmission mode is not suitable for the development of small-pitch LED and micro LED display screens. HDMI is a common standard for video transmission, and the bandwidth of HDMI is from 3G to 48G, so that the HDMI can meet the transmission of 2K to 8K resolution, and can adapt to the application of high-density LED display screens.
Therefore, HDMI is adopted as a data transmission mode inside the LED display screen, but in the transmission process, since the conventional technology adopts a serial mode, if communication abnormality occurs at a certain position in the signal transmission process, transmission and display failure may be caused.
Therefore, the invention provides a multi-signal redundancy multifunctional display screen control system.
Disclosure of Invention
The invention provides a multi-signal redundancy multifunctional display screen control system which is used for searching for a reasonable link to transmit display signals by detecting states of control cards in parallel connection setting grids, and ensuring signal redundancy by carrying out multiple backups on display information in the searching process, and further ensuring effective display of a subsequent display screen by carrying out link adjustment control on the display signals.
The invention provides a multi-signal redundancy multifunctional display screen control system, which comprises:
the state detection module is used for detecting the current state of the first control card in the first transmission link;
the first transmission display module is used for transmitting display signals to a display screen for temporary storage based on the first transmission link when the current states are all normal states;
the card locking module is used for locking the appearance position of the first abnormal state in the parallel grid structure when the current state is the abnormal state, locking the level control card based on the appearance position, and controlling the upper level control card in the first transmission link to carry out first backup of display signals;
the sub-link changing module is used for selecting a first reasonable control card to change the sub-link based on a first transmission relation between each locked level control card and a corresponding upper control card in the first transmission link and a second transmission relation between each locked level control card and a corresponding lower control card in the first transmission link, and continuously transmitting a first backup signal;
judging whether the changed sub-link is normally connected with the next control card in the first transmission link;
The second transmission display module is used for continuously analyzing the control card in the next abnormal state when the control card is normally connected, continuously changing the sub-link and continuously controlling the upper control card of the control card corresponding to the abnormal state to carry out second backup on the display signal until the display signal of the second backup is transmitted to the display screen for temporary storage;
the third transmission display module is used for screening the second reasonable control card after the appearance position when abnormal connection is performed, establishing a new transmission link between the first reasonable control card and the second reasonable control card, and transmitting a display signal to a display screen for temporary storage;
and the function control module is used for analyzing the temporary storage signal of the display screen and the working signal of the display screen to issue a function control instruction to the display screen so as to realize content display.
Preferably, the function control module includes:
the same index signal extraction unit is used for obtaining a working signal and a temporary storage signal of the display screen, extracting a first signal based on a same preset signal index from the working signal and extracting a second signal based on the same preset signal index from the temporary storage signal;
The compatibility judging unit is used for judging whether the signal compatibility condition of the first signal and the second signal under the same preset signal index meets a preset compatibility standard or not, and if so, the first signal is completely reserved;
if the signal compatibility weight of the first signal and the second signal is not satisfied, determining whether the signal compatibility weight is within a preset range, and if so, completely reserving the first signal;
if the first signal is not in the preset range, analyzing the first signal, constructing an instruction mapping table of the first signal, and randomly screeningThe first instruction is processed, signals related to the screened first instruction in the first signals are reserved, wherein n represents the number of instructions in an instruction mapping table;
performing function control adaptation on the reserved first signal and the reserved second signal;
the type conversion unit is used for carrying out type conversion on the second signal according to the signal compatibility type of the first signal if the signal compatibility condition does not meet the preset compatibility standard and the signal compatibility weight is in the preset range, and calling a signal to be replaced matched with the signal content of the second signal from a database matched with the signal compatibility type;
The function adaptation unit is used for obtaining a limited signal according to the type conversion signal and the signal to be replaced and performing function control adaptation with the first signal;
and the signal discarding unit is used for discarding the first signal and the second signal if the signal compatibility condition does not meet the preset compatibility standard and the signal compatibility weight is not in the preset range.
Preferably, the state detection module includes:
a card status function construction unit, configured to construct a card status function Z (s 1, s2, s3, s 4) of each first control card according to a preset status detection index of the first control card, where s1 represents input connection information of the corresponding first control card; s2 represents output connection information corresponding to the first control card; s3 represents communication quality information corresponding to the first control card; s4 represents data anomaly information corresponding to the first control card;
the linear determining unit is used for determining the input linear condition of the input connection information based on the first transmission link by combining all included s1, simultaneously, combining all included s2, determining the output linear condition of the output connection information, simultaneously, combining all included s3, determining the communication linear condition of the communication quality information, simultaneously, combining all included s4, and determining the abnormal linear condition of the data abnormal information;
A card comparison function construction unit, configured to obtain a card comparison function B (s 01, s02, s03, s 04) for the first transmission link according to a situation determination result, where s01 represents input comparison information of an input linear situation; s02 represents output comparison information of the output linearity condition; s03 represents communication comparison information of the communication linearity condition; s04 denotes abnormality comparison information of an abnormality linear condition;
a function comparing unit, configured to compare the card status function Z (s 1, s2, s3, s 4) corresponding to the first control card with the card comparing function B (s 01, s02, s03, s 04), and determine whether the first difference between s1 and s01, the second difference between s2 and s02, the third difference between s3 and s03, and the fourth difference between s4 and s04 are all within a preset difference range;
a state judging unit, configured to judge that the current state of the corresponding first control card is a normal state when all the differences are within a corresponding preset difference range;
otherwise, judging that the current state corresponding to the first control card is an abnormal state.
Preferably, the linearity determining unit includes:
the value extraction block is used for extracting an input value in the input connection information, constructing an input vector of the first transmission link and drawing to obtain an input linear graph;
A coefficient acquisition block for acquiring an input linear coefficient of the input linear graph, and taking the input linear coefficient and an initial default value as input comparison information when the input linear coefficient tends to 0 and a default initial value of the input linear graph is in an input range;
a ratio calculating block for drawing a graph according to the input vector if the input linear coefficient does not tend to 0, obtaining a concentrated high point, a concentrated low point and a concentrated horizontal point in the graph, and calculating a first ratio according to a first input value of the concentrated high point, a second input value of the concentrated low point and a third input value of the concentrated horizontal point, respectivelyAnd a second ratio->；
；
wherein ,representing the total number of concentrated high points; z2 represents the total number of horizontal points in the set; z3 represents the total number of concentrated low points; />An input value representing a level point in the j2 th set; />An input value representing a high point in the j1 st set; />An input value representing a low point in the j3 rd set;
and the range expansion block is used for expanding the input range according to the first ratio and the second ratio, taking the expansion range as input comparison information, carrying out first calibration on the left expansion area, and carrying out second calibration on the right expansion range.
Preferably, the range expansion block is configured to:
determining an expanded left boundary value:
；
confirming the right boundary value after expansion:
；
wherein A1 represents the left edge value of the extended range; a2 represents the right edge value of the extended range; a01 represents the left edge value of the input range; a02 represents the right edge value of the input range; [ A1, A01] represents a left extension region; [ A02, A2] represents the right extension region.
Preferably, the sub-link changing module includes:
the information determining unit is used for determining lower-level transmission information based on the first transmission relation between each locked level control card and the corresponding upper-level control card in the first transmission link, and determining upper-level transmission information based on the second transmission relation between each locked level control card and the corresponding lower-level control card in the first transmission link;
and the control card selection unit is used for determining the transmission rationality based on the lower-level transmission information and the upper-level transmission information of the same level control card, and selecting the optimal control card from all the level control cards as a first reasonable control card to realize the modification of the sub-link.
Preferably, the third transmission display module includes:
The relation establishing unit is used for confirming the first card information of the lower-level card to be analyzed after the appearance position when abnormal connection is carried out, and respectively establishing information association between each first card information and the second card information of the first reasonable control card;
the relation screening unit is used for screening the optimal association from all the information associations to obtain a first analysis card;
the signal matching and screening unit is used for matching each piece of first card information with the display signal, and screening to obtain a reserved analysis card;
and the new link establishing unit is used for establishing a new transmission link between the first reasonable control card and the same analysis card when the first analysis card and the reserved analysis card are the same analysis card, and transmitting a display signal to a display screen for temporary storage.
Preferably, the signal matching screening unit includes:
the load determining block is used for determining the current load of the corresponding lower-level card to be analyzed and the resource type related to the current load according to the first card information;
the matching block is used for acquiring the signal load and the signal type of the display signal, carrying out first matching based on the signal load and the corresponding current load, and carrying out second matching based on the signal type and the corresponding resource type;
When the two are completely matched, the corresponding lower-level card to be analyzed is regarded as a second analysis card;
otherwise, the corresponding lower-level card to be analyzed is regarded as an invalid analysis card;
when the number of the second analysis cards is 0, re-planning the first transmission link according to the power sharing principle;
when the number of the second analysis cards is 1, reserving the corresponding second analysis cards;
when the number of the second analysis cards is multiple, determining the matching degree according to the residual load and the resource type of each second analysis card, and screening and obtaining a third control card from all the second analysis cards, and reserving the third control card;
the adjusting block is used for analyzing a first power output curve of the first reasonable control card and a second power output curve of the reserved control card, configuring a first automatic adjusting signal according to the first power output curve, configuring a second automatic adjusting signal according to the second power output curve, and realizing stable adjustment of power.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of a multi-signal redundant multi-function display control system in accordance with an embodiment of the present invention;
FIG. 2 is a diagram of a parallel grid configuration in accordance with an embodiment of the present invention;
FIG. 3 is a graph of an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The invention provides a multi-signal redundancy multifunctional display screen control system, as shown in figure 1, comprising:
the state detection module is used for detecting the current state of the first control card in the first transmission link;
the first transmission display module is used for transmitting display signals to a display screen for temporary storage based on the first transmission link when the current states are all normal states;
The card locking module is used for locking the appearance position of the first abnormal state in the parallel grid structure when the current state is the abnormal state, locking the level control card based on the appearance position, and controlling the upper level control card in the first transmission link to carry out first backup of display signals;
the sub-link changing module is used for selecting a first reasonable control card to change the sub-link based on a first transmission relation between each locked level control card and a corresponding upper control card in the first transmission link and a second transmission relation between each locked level control card and a corresponding lower control card in the first transmission link, and continuously transmitting a first backup signal;
judging whether the changed sub-link is normally connected with the next control card in the first transmission link;
the second transmission display module is used for continuously analyzing the control card in the next abnormal state when the control card is normally connected, continuously changing the sub-link and continuously controlling the upper control card of the control card corresponding to the abnormal state to carry out second backup on the display signal until the display signal of the second backup is transmitted to the display screen for temporary storage;
the third transmission display module is used for screening the second reasonable control card after the appearance position when abnormal connection is performed, establishing a new transmission link between the first reasonable control card and the second reasonable control card, and transmitting a display signal to a display screen for temporary storage;
And the function control module is used for analyzing the temporary storage signal of the display screen and the working signal of the display screen to issue a function control instruction to the display screen so as to realize content display.
In this embodiment, the present state refers to a normal state or an abnormal state of the control card.
In this embodiment, when the signal transmission is performed, a link for signal transmission is designated in advance, and the signal is transmitted to the display screen for display through the link, as shown in fig. 2:
the presence is: control card 01, 02, 03, 04
Control cards 11, 12, 13, 14
Control cards 21, 22, 23, 24
Wherein, there are 4 control cards in each row, and there are 3 control cards in each column, and the first transmission link is obtained by combining any one of the control cards in each column, for example, the first transmission link is: the control cards 01-12-23-24, at this time, the first control card is the control card involved in the first transmission link, and the control cards 01, 12, 23, 24 are the first control cards.
In this embodiment, the control cards refer to that the display signals need to be transmitted through a transmission link in the process of transmitting the display signals from the outside to the display screen for display, and each control card can be regarded as a transmission node in the transmission link, so as to ensure effective transmission of the display signals.
In this embodiment, the analysis of the current state is obtained by analyzing four aspects of input connection information, output connection information, communication quality information, and data abnormality information.
In this embodiment, the display signal refers to a video picture signal that needs to be displayed on the display screen.
In this embodiment, the analysis of the abnormal state is because the information on the four aspects related to the current state is inconsistent with the matching comparison information, and is therefore regarded as the abnormal state.
In this embodiment, the first abnormal state of locking is the control card 12, and at this time, the appearance position in the parallel grid structure is the second row and the second column, and at this time, the locked level control card is: the control cards 02 and 22 are the control card 01 at the previous stage in the first transmission link, that is, the first backup is performed on the control card 01.
In this embodiment, the first transmission relationship is referred to as between the control card 01 and the level control card 02 and the level control card 22.
In this embodiment, the second transmission relationship refers to between the level control card 02, the level control card 22, and the lower control card 23.
In this embodiment, the first logical control card refers to one selected from the level control cards 02 and 22.
In this embodiment, if the first reasonable control card selected is level control card 02, then, at this time, the modified sub-link is: control card 01-02-23.
In this embodiment, the main purpose of backing up the display signal is to avoid the situation that the continuously changed sub-link is wrong, which results in information loss and thus display failure.
In this embodiment, continuously changing the sub-link refers to continuously changing the sub-link on the premise that the connection is determined to be normal according to the execution mode of the sub-link changing module.
In this embodiment, abnormal connection refers to that the modified sub-link, 02 and 23, cannot be normally connected, and at this time, under the condition of abnormal connection, the second reasonable control card in the control cards in the third column and the fourth column is screened out to re-screen the new control card, so as to implement the reconstruction of the link.
In this embodiment, the new transmission link is, for example: control card 01-02-13-24.
In this embodiment, the working signal of the display screen refers to that the display screen is in the generated working log, for example, to acquire the working signal to display the key frame part in the temporary storage signal, at this time, the key frame part is displayed, and the issued function control instruction is to intercept the key frame part in the temporary storage signal.
The beneficial effects of the technical scheme are as follows: the control cards in the parallel grid are subjected to state detection to find out the transmission of display signals as reasonable links, and in the finding process, the display information is backed up for a plurality of times to ensure signal redundancy, so that the effective display of the subsequent display screen is ensured through the link adjustment control of the display signals.
The invention provides a multi-signal redundancy multifunctional display screen control system, a functional control module, comprising:
the same index signal extraction unit is used for obtaining a working signal and a temporary storage signal of the display screen, extracting a first signal based on a same preset signal index from the working signal and extracting a second signal based on the same preset signal index from the temporary storage signal;
the compatibility judging unit is used for judging whether the signal compatibility condition of the first signal and the second signal under the same preset signal index meets a preset compatibility standard or not, and if so, the first signal is completely reserved;
if the signal compatibility weight of the first signal and the second signal is not satisfied, determining whether the signal compatibility weight is within a preset range, and if so, completely reserving the first signal;
If the first signal is not in the preset range, analyzing the first signal, constructing an instruction mapping table of the first signal, and randomly screeningThe first instruction is processed, signals related to the screened first instruction in the first signals are reserved, wherein n represents the number of instructions in an instruction mapping table;
performing function control adaptation on the reserved first signal and the reserved second signal;
the type conversion unit is used for carrying out type conversion on the second signal according to the signal compatibility type of the first signal if the signal compatibility condition does not meet the preset compatibility standard and the signal compatibility weight is in the preset range, and calling a signal to be replaced matched with the signal content of the second signal from a database matched with the signal compatibility type;
the function adaptation unit is used for obtaining a limited signal according to the type conversion signal and the signal to be replaced and performing function control adaptation with the first signal;
and the signal discarding unit is used for discarding the first signal and the second signal if the signal compatibility condition does not meet the preset compatibility standard and the signal compatibility weight is not in the preset range.
In this embodiment, the temporary storage signal refers to a video signal or the like that requires content screen display on a display screen.
In this embodiment, the working signal refers to a signal of the display screen itself, such as a power signal, a permission display signal, and the like, and mainly plays a role in controlling the temporary storage signal, so there are a plurality of instructions related to display control.
In this embodiment, the preset signal index refers to splitting a working signal and splitting a temporary storage signal to match with the preset signal index, for example, the working signal is: A1A2, the temporary storage signal is: and B1B2, wherein a first signal in the working signals extracted by the preset signal indexes is A1, a second signal extracted from the temporary storage signals is B1, at the moment, the first signal A1 and the second signal B1 are judged to be compatible, the preset compatibility standard refers to whether the first signal A1 and the second signal B1 are matched, if the first signal A1 and the second signal B1 are matched, the preset compatibility standard is met, if the first signal A1 and the second signal B1 are not matched, the preset compatibility standard is not met, for example, the preset signal indexes are that the B1 in the temporary storage signals are extracted and displayed at the position of a display screen A1, but at the moment, the extracted first signal A1 is displayed at the position of B1, and at the moment, the first signal A1 is incompatible.
If the extracted first signal A1 means that the signal is displayed at the position A1, the signal is compatible, and the first signal is reserved for the purpose of determining that the signal can be reasonably displayed on a display screen.
In this embodiment, if the first signal has a signal compatibility weight of the second signal in order to determine the necessity of display, the preset range refers to whether the weight is between 0.6 and 1, and if so, the first signal is reserved, and the signal compatibility weight refers to the sum of the weight of the first signal and the weight of the second signal.
In this embodiment, if the sum of the weights is not within the preset range, the first signal is analyzed, and since the first signal includes a plurality of sub-control commands and the control signals corresponding to different sub-control commands are different, it is necessary to obtain all sub-control commands included in the first signal, for example, the video content 01 is displayed at the position A1 at the time 1 and the video content 02 is displayed at the position A1 at the time 2, so that the random screening of the commands is performed, the [ (] is a whole symbol, and the related signals are reserved by the random screening of the commands, for example, the first signal A1 includes: sub-signals: 011. 022, 033, the first instruction is related to sub-signals 011 and 022, and thus the signals to be preserved are 011 and 022.
In this embodiment, the function control adaptation of the second signal to the first signal refers to the adaptation of the instruction to the display result.
In this embodiment, the signal compatibility types of the first signal include: the second signal is type 3, and at this time, type 3 needs to be converted to type 1 to obtain a type-converted signal, that is, type 3 of the second signal is converted according to type 1.
In this embodiment, the database of signal compatibility type matches refers to a database containing signals of different types of correlations, and therefore, to retrieve the signal to be replaced that matches the signal content of the second signal.
In this embodiment, for example, the type conversion signal is: signals 01, 02 and 03, the signal to be replaced is: 01. 02, 03, 04, in this case, the acquired limiting signal is: signals 01, 02 and 03, in this case, are functionally controlled with the first signal.
The beneficial effects of the technical scheme are as follows: the first signal and the second signal are extracted according to the same preset signal index, compatibility judgment is carried out, the related first signal and second signal are reserved, the reservation of the signals is realized, and effective display of a display screen is ensured.
The invention provides a multi-signal redundancy multifunctional display screen control system, the state detection module comprises:
a card status function construction unit, configured to construct a card status function Z (s 1, s2, s3, s 4) of each first control card according to a preset status detection index of the first control card, where s1 represents input connection information of the corresponding first control card; s2 represents output connection information corresponding to the first control card; s3 represents communication quality information corresponding to the first control card; s4 represents data anomaly information corresponding to the first control card;
The linear determining unit is used for determining the input linear condition of the input connection information based on the first transmission link by combining all included s1, simultaneously, combining all included s2, determining the output linear condition of the output connection information, simultaneously, combining all included s3, determining the communication linear condition of the communication quality information, simultaneously, combining all included s4, and determining the abnormal linear condition of the data abnormal information;
a card comparison function construction unit, configured to obtain a card comparison function B (s 01, s02, s03, s 04) for the first transmission link according to a situation determination result, where s01 represents input comparison information of an input linear situation; s02 represents output comparison information of the output linearity condition; s03 represents communication comparison information of the communication linearity condition; s04 denotes abnormality comparison information of an abnormality linear condition;
a function comparing unit, configured to compare the card status function Z (s 1, s2, s3, s 4) corresponding to the first control card with the card comparing function B (s 01, s02, s03, s 04), and determine whether the first difference between s1 and s01, the second difference between s2 and s02, the third difference between s3 and s03, and the fourth difference between s4 and s04 are all within a preset difference range;
A state judging unit, configured to judge that the current state of the corresponding first control card is a normal state when all the differences are within a corresponding preset difference range;
otherwise, judging that the current state corresponding to the first control card is an abnormal state.
In this embodiment, the input connection information refers to a signal input condition of a communication connection between cards, and the output connection information refers to a signal output condition of a communication connection between cards, such as audio, video, carrier, frequency, and the like.
In this embodiment, the communication quality refers to the communication transmission speed and transmission environment between different cards.
In the embodiment, the working state of each control card can be monitored, and the real-time dynamic chart display comprises the input and output connection states, the communication quality, the number of error packets and the visual display of error communication links is realized, so that hidden danger can be eliminated.
In this embodiment, the data abnormality information refers to abnormality existing in the recorded operation log of the control card, such as communication abnormality, data transmission abnormality, card itself abnormality, and the like.
In this embodiment, the card comparison function is constructed mainly to set a reference basis to implement comparison with the card status function, so as to provide an effective basis for judging the normal status and the abnormal status of the subsequent process.
In this embodiment, the preset difference ranges are preset, and the preset difference ranges corresponding to different parameters are different.
The beneficial effects of the technical scheme are as follows: the card comparison function is constructed by constructing the card state function and analyzing the linear condition of the first transmission link, and the comparison of the input, output, communication and abnormality is realized by comparing the two functions, so that the effective judgment of the control card is realized, and the effective display of the subsequent display screen is realized.
The invention provides a multi-signal redundancy multifunctional display screen control system, the linearity determining unit comprises:
the value extraction block is used for extracting an input value in the input connection information, constructing an input vector of the first transmission link and drawing to obtain an input linear graph;
a coefficient acquisition block for acquiring an input linear coefficient of the input linear graph, and taking the input linear coefficient and an initial default value as input comparison information when the input linear coefficient tends to 0 and a default initial value of the input linear graph is in an input range;
a ratio calculating block for drawing a graph according to the input vector if the input linear coefficient does not tend to 0, obtaining a concentrated high point, a concentrated low point and a concentrated horizontal point in the graph, and calculating a first ratio according to a first input value of the concentrated high point, a second input value of the concentrated low point and a third input value of the concentrated horizontal point, respectively And a second ratio->；
；
wherein ,representing the total number of concentrated high points; />Representing the total number of the concentrated horizontal points; />Representing the total number of concentrated low points; />An input value representing a level point in the j2 th set; />An input value representing a high point in the j1 st set;an input value representing a low point in the j3 rd set;
and the range expansion block is used for expanding the input range according to the first ratio and the second ratio, taking the expansion range as input comparison information, carrying out first calibration on the left expansion area, and carrying out second calibration on the right expansion range.
In this embodiment, the input connection information includes input hardware parameters, and the input hardware parameters are used as input values, and the input values of each control card in the first transmission link are respectively obtained, so as to construct an input vector, and draw an input linear graph, and in the process of drawing the input linear graph, discrete values need to be extracted to obtain the linear graph, that is, a straight line.
In this embodiment, the input linear coefficients refer to the linear coefficients of the linear graph, and a trend toward 0 refers to a linear coefficient between [ -0.1,0.1], otherwise it is considered that the linear coefficient does not tend toward 0.
In this embodiment, the input range refers to an intersection point of the corresponding constant and the origin of coordinates when the abscissa in the corresponding linear graph is 0, and the ordinate of the intersection point is the value.
In this embodiment, the graph refers to a graph obtained by plotting all values according to the input vector.
In this embodiment, as shown in fig. 3, a portion A1 is a concentration high point, a portion A3 is a concentration low point, and a portion A2 is a concentration horizontal point.
The beneficial effects of the technical scheme are as follows: the input comparison information is effectively determined by extracting the input value construction vector and drawing the linear graph, a basis is provided for judging whether the control card is normal or not, otherwise, the effective determination of the input comparison information is realized based on the graph, and the rationality of the state analysis of the control card is ensured.
The invention provides a multi-signal redundancy multifunctional display screen control system, which is characterized in that the range expansion block is used for:
determining an expanded left boundary value:
；
confirming the right boundary value after expansion:
；
wherein A1 represents the left edge value of the extended range; a2 represents the right edge value of the extended range; a01 represents the left edge value of the input range; a02 represents the right edge value of the input range; [ A1, A01] represents a left extension region; [ A02, A2] represents the right extension region.
The beneficial effects of the technical scheme are as follows: the expanded left boundary value and the expanded right boundary value are calculated, so that the expanded range is effectively defined, and an effective basis is provided for judging the state of the subsequent card.
The invention provides a multi-signal redundancy multifunctional display screen control system, the sublink changing module comprises:
the information determining unit is used for determining lower-level transmission information based on the first transmission relation between each locked level control card and the corresponding upper-level control card in the first transmission link, and determining upper-level transmission information based on the second transmission relation between each locked level control card and the corresponding lower-level control card in the first transmission link;
and the control card selection unit is used for determining the transmission rationality based on the lower-level transmission information and the upper-level transmission information of the same level control card, and selecting the optimal control card from all the level control cards as a first reasonable control card to realize the modification of the sub-link.
In this embodiment, the first transmission relationship refers to between the control card 01 and the level control card 02 and the level control card 22, and the second transmission relationship refers to between the level control card 02, the level control card 22, and the lower control card 23.
In this embodiment, the lower-level transmission information refers to a transmission condition between the level control card and the lower-level control card after communication connection between the level control card and the upper-level control card.
In this embodiment, the upper transmission information refers to a communication connection between the level control card and the lower control card, and affects the communication connection between the level control card and the upper control card, which includes: communication loss and communication transmission effectiveness, the transmission rationality is effectively judged through two aspects, and the lower the loss is, the higher the transmission effectiveness is, and the corresponding transmission rationality is higher.
In this embodiment, the optimal control card refers to the most reasonable control card obtained by screening, so as to ensure reasonable transmission of link communication.
The beneficial effects of the technical scheme are as follows: different transmission information is determined through different transmission relations, so that the optimal control card can be conveniently and effectively screened, modification of the sub-link is realized, and effective display of the content is ensured.
The invention provides a multi-signal redundancy multifunctional display screen control system, the third transmission display module comprises:
the relation establishing unit is used for confirming the first card information of the lower-level card to be analyzed after the appearance position when abnormal connection is carried out, and respectively establishing information association between each first card information and the second card information of the first reasonable control card;
the relation screening unit is used for screening the optimal association from all the information associations to obtain a first analysis card;
The signal matching and screening unit is used for matching each piece of first card information with the display signal, and screening to obtain a reserved analysis card;
and the new link establishing unit is used for establishing a new transmission link between the first reasonable control card and the same analysis card when the first analysis card and the reserved analysis card are the same analysis card, and transmitting a display signal to a display screen for temporary storage.
In this embodiment, the lower-level card to be analyzed after abnormal connection is: 03. 13 and 23.
In this embodiment, the card information refers to a transport format, a transport network identification, a transport bit field, a card load, a load type, and the like, to which the card itself relates.
In this embodiment, the information association refers to parameter association between different parameters in the first card information and different parameters in the second card information of the first reasonable control card, that is, information association, that is, consistency between the same parameters, the more the consistency, the greater the corresponding degree of association, and the higher the likelihood of being used as the first analysis card.
In this embodiment, the display information includes a plurality of instructions, mainly for matching with the first card information to achieve matching.
The beneficial effects of the technical scheme are as follows: the first analysis card is screened through the information association of the first card information and the second card information, and the reserved analysis card is screened through the matching of the first card information and the display signal, namely, the first analysis card and the reserved analysis card are subjected to the same analysis, so that the analysis card is finally determined to establish a new transmission link, and the signal transmission is realized.
The invention provides a multi-signal redundancy multifunctional display screen control system, which comprises a signal matching screening unit, wherein the signal matching screening unit comprises:
the load determining block is used for determining the current load of the corresponding lower-level card to be analyzed and the resource type related to the current load according to the first card information;
the matching block is used for acquiring the signal load and the signal type of the display signal, carrying out first matching based on the signal load and the corresponding current load, and carrying out second matching based on the signal type and the corresponding resource type;
when the two are completely matched, the corresponding lower-level card to be analyzed is regarded as a second analysis card;
otherwise, the corresponding lower-level card to be analyzed is regarded as an invalid analysis card;
when the number of the second analysis cards is 0, re-planning the first transmission link according to the power sharing principle;
when the number of the second analysis cards is 1, reserving the corresponding second analysis cards;
when the number of the second analysis cards is multiple, determining the matching degree according to the residual load and the resource type of each second analysis card, and screening and obtaining a third control card from all the second analysis cards, and reserving the third control card;
the adjusting block is used for analyzing a first power output curve of the first reasonable control card and a second power output curve of the reserved control card, configuring a first automatic adjusting signal according to the first power output curve, configuring a second automatic adjusting signal according to the second power output curve, and realizing stable adjustment of power.
In the embodiment, the parallel grid structure has high reliability, the power supply current sharing redundancy backup, the signal grid structure redundancy backup design, the intelligent system is plug and play without setting, the full HDMI standard video interface is not needed, the international standard HDMI video signal is directly transmitted to the LED display screen, the speed is high, no frame exists, no time delay exists, the instantaneity is good, and the network cable transmission (small bandwidth and the need of partition cutting combined cache data) is not adopted
The LED display screen is a current dynamic change system. When the load changes, the signal interaction between the power supplies can be used for automatically adjusting the change of the output voltage and current of the power supplies, so that the output current of each power supply is uniformly distributed according to the power share, the output capacity of each unit is fully exerted, the load output by a single power supply is greatly reduced, the reliable operation of each unit is ensured, and the stability of the system is greatly improved.
In this embodiment, the first card information includes different current loads and resource types related to the loads, and because the control card has a temporary storage function, the control card stores different types of information, that is, different types of resources, so that the type and the loads can be matched to realize the determination of the second analysis card.
In this embodiment, the power sharing principle refers to that the power supplied by each control card in the re-planned transmission link is substantially the same.
In this embodiment, the remaining load refers to the total load minus the current load.
In this embodiment, the matching degree refers to the matching degree between the signal load and the signal type of the display signal and the residual load and the resource type of each second analysis card, so as to screen and obtain the third control card.
In this embodiment, the power output curve refers to the power supply condition, that is, in order to determine the smoothness, so as to realize automatic adjustment of the power supply, ensure the stability of the power, and ensure effective display of the display signal.
In this embodiment, the current load refers to the occupied space, and the remaining load refers to the remaining space.
In this embodiment, the resource types refer to the types of different videos.
The beneficial effects of the technical scheme are as follows: the load and the resource type of the lower-level card to be analyzed are matched with the load and the resource type of the display signal, so that the analysis of the lower-level card to be analyzed is realized, and an effective basis is provided for the subsequent display.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (2)

1. A multi-signal redundant multi-functional display control system, comprising:
the state detection module is used for detecting the current state of the first control card in the first transmission link;
the first transmission display module is used for transmitting display signals to a display screen for temporary storage based on the first transmission link when the current states are all normal states;
the card locking module is used for locking the appearance position of the first abnormal state in the parallel grid structure when the current state is the abnormal state, locking the level control card based on the appearance position, and controlling the upper level control card in the first transmission link to carry out first backup of display signals;
the sub-link changing module is used for selecting a first reasonable control card to change the sub-link based on a first transmission relation between each locked level control card and a corresponding upper control card in the first transmission link and a second transmission relation between each locked level control card and a corresponding lower control card in the first transmission link, and continuously transmitting a first backup signal;
judging whether the changed sub-link is normally connected with the next control card in the first transmission link;
The second transmission display module is used for continuously analyzing the control card in the next abnormal state when the control card is normally connected, continuously changing the sub-link and continuously controlling the upper control card of the control card corresponding to the abnormal state to carry out second backup on the display signal until the display signal of the second backup is transmitted to the display screen for temporary storage;
the third transmission display module is used for screening the second reasonable control card after the appearance position when abnormal connection is performed, establishing a new transmission link between the first reasonable control card and the second reasonable control card, and transmitting a display signal to a display screen for temporary storage;
the function control module is used for analyzing the temporary storage signal of the display screen and the working signal of the display screen to issue a function control instruction to the display screen so as to realize content display;
wherein, the function control module includes:
the same index signal extraction unit is used for obtaining a working signal and a temporary storage signal of the display screen, extracting a first signal based on a same preset signal index from the working signal and extracting a second signal based on the same preset signal index from the temporary storage signal;
the compatibility judging unit is used for judging whether the signal compatibility condition of the first signal and the second signal under the same preset signal index meets a preset compatibility standard or not, and if so, the first signal is completely reserved;
If the signal compatibility weight of the first signal and the second signal is not satisfied, determining whether the signal compatibility weight is within a preset range, and if so, completely reserving the first signal;
if the first signal is not in the preset range, analyzing the first signal, constructing an instruction mapping table of the first signal, and randomly screeningA first instruction is issued, and the information related to the screened first instruction in the first signal is processedThe number is reserved, wherein n represents the number of instructions in the instruction mapping table;
performing function control adaptation on the reserved first signal and the reserved second signal;
the type conversion unit is used for carrying out type conversion on the second signal according to the signal compatibility type of the first signal if the signal compatibility condition does not meet the preset compatibility standard and the signal compatibility weight is in the preset range, and calling a signal to be replaced matched with the signal content of the second signal from a database matched with the signal compatibility type;
the function adaptation unit is used for obtaining a limited signal according to the type conversion signal and the signal to be replaced and performing function control adaptation with the first signal;
the signal discarding unit is used for discarding the first signal and the second signal if the signal compatibility condition does not meet the preset compatibility standard and the signal compatibility weight is not in the preset range;
Wherein, the state detection module includes:
a card status function construction unit, configured to construct a card status function Z (s 1, s2, s3, s 4) of each first control card according to a preset status detection index of the first control card, where s1 represents input connection information of the corresponding first control card; s2 represents output connection information corresponding to the first control card; s3 represents communication quality information corresponding to the first control card; s4 represents data anomaly information corresponding to the first control card;
the linear determining unit is used for determining the input linear condition of the input connection information based on the first transmission link by combining all included s1, simultaneously, combining all included s2, determining the output linear condition of the output connection information, simultaneously, combining all included s3, determining the communication linear condition of the communication quality information, simultaneously, combining all included s4, and determining the abnormal linear condition of the data abnormal information;
a card comparison function construction unit, configured to obtain a card comparison function B (s 01, s02, s03, s 04) for the first transmission link according to a situation determination result, where s01 represents input comparison information of an input linear situation; s02 represents output comparison information of the output linearity condition; s03 represents communication comparison information of the communication linearity condition; s04 denotes abnormality comparison information of an abnormality linear condition;
A function comparing unit, configured to compare the card status function Z (s 1, s2, s3, s 4) corresponding to the first control card with the card comparing function B (s 01, s02, s03, s 04), and determine whether the first difference between s1 and s01, the second difference between s2 and s02, the third difference between s3 and s03, and the fourth difference between s4 and s04 are all within a preset difference range;
a state judging unit, configured to judge that the current state of the corresponding first control card is a normal state when all the differences are within a corresponding preset difference range;
otherwise, judging that the current state corresponding to the first control card is an abnormal state;
wherein the linearity determining unit includes:
the value extraction block is used for extracting an input value in the input connection information, constructing an input vector of the first transmission link and drawing to obtain an input linear graph;
a coefficient acquisition block for acquiring an input linear coefficient of the input linear graph, and taking the input linear coefficient and an initial default value as input comparison information when the input linear coefficient tends to 0 and a default initial value of the input linear graph is in an input range;
a ratio calculating block for drawing a graph according to the input vector if the input linear coefficient does not tend to 0, obtaining a concentrated high point, a concentrated low point and a concentrated horizontal point in the graph, and calculating a first ratio according to a first input value of the concentrated high point, a second input value of the concentrated low point and a third input value of the concentrated horizontal point, respectively And a second ratio->；
；
wherein ,representing the total number of concentrated high points; />Representing the total number of the concentrated horizontal points; />Representing the total number of concentrated low points; />An input value representing a level point in the j2 th set; />An input value representing a high point in the j1 st set;an input value representing a low point in the j3 rd set;
the range expansion block is used for expanding the input range according to the first ratio and the second ratio, taking the expansion range as input comparison information, performing first calibration on the left expansion area, and performing second calibration on the right expansion range;
wherein the sub-link changing module comprises:
the information determining unit is used for determining lower-level transmission information based on the first transmission relation between each locked level control card and the corresponding upper-level control card in the first transmission link, and determining upper-level transmission information based on the second transmission relation between each locked level control card and the corresponding lower-level control card in the first transmission link;
the control card selection unit is used for determining transmission rationality based on the lower-level transmission information and the upper-level transmission information of the same level control card, selecting an optimal control card from all the level control cards as a first reasonable control card and realizing sub-link change;
Wherein, the third transmission display module includes:
the relation establishing unit is used for determining first card information of the lower-level card to be analyzed after the appearance position when abnormal connection is performed, and respectively establishing information association between each first card information and second card information of the first reasonable control card;
the relation screening unit is used for screening the optimal association from all the information associations to obtain a first analysis card;
the signal matching and screening unit is used for matching each piece of first card information with the display signal, and screening to obtain a reserved analysis card;
the new link establishing unit is used for establishing a new transmission link between the first reasonable control card and the same analysis card when the first analysis card and the reserved analysis card are the same analysis card, and transmitting a display signal to a display screen for temporary storage;
wherein, the signal match screening unit includes:
the load determining block is used for determining the current load of the corresponding lower-level card to be analyzed and the resource type related to the current load according to the first card information;
the matching block is used for acquiring the signal load and the signal type of the display signal, carrying out first matching based on the signal load and the corresponding current load, and carrying out second matching based on the signal type and the corresponding resource type;
When the two are completely matched, the corresponding lower-level card to be analyzed is regarded as a second analysis card;
otherwise, the corresponding lower-level card to be analyzed is regarded as an invalid analysis card;
when the number of the second analysis cards is 0, re-planning the first transmission link according to the power sharing principle;
when the number of the second analysis cards is 1, reserving the corresponding second analysis cards;
when the number of the second analysis cards is multiple, determining the matching degree according to the residual load and the resource type of each second analysis card, and screening and obtaining a third control card from all the second analysis cards, and reserving the third control card;
the adjusting block is used for analyzing a first power output curve of the first reasonable control card and a second power output curve of the reserved control card, configuring a first automatic adjusting signal according to the first power output curve, configuring a second automatic adjusting signal according to the second power output curve, and realizing stable adjustment of power.
2. The multi-signal redundant multi-function display control system of claim 1, wherein the range expansion block is configured to:
determining an expanded left boundary value:
；
determining an expanded right boundary value:
；
wherein ,a left boundary value representing the extension range; />Right boundary values representing the extension range; />A left edge value representing an input range; />A right boundary value representing an input range; />Representing a left extension area; />Indicating the right extension area.
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