CN116229890B - Intelligent control method and control system based on LED display screen - Google Patents

Intelligent control method and control system based on LED display screen Download PDF

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Publication number
CN116229890B
CN116229890B CN202310504379.9A CN202310504379A CN116229890B CN 116229890 B CN116229890 B CN 116229890B CN 202310504379 A CN202310504379 A CN 202310504379A CN 116229890 B CN116229890 B CN 116229890B
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display screen
signal
environment
personnel
led display
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CN116229890A (en
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朱虹
王淑敏
程越
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China National Institute of Standardization
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China National Institute of Standardization
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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]
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
    • 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)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention belongs to the technical field of display screen supervision, in particular to an intelligent control method and a control system based on an LED display screen, wherein the intelligent control system comprises a processor, an area analysis and planning module, a display area monitoring module, a display environment detection module and a display screen intelligent regulation and control module; according to the LED display screen monitoring system, the display monitoring area of the LED display screen is obtained through the area analysis and planning module, the display area monitoring module monitors and analyzes the display monitoring area, the display environment detection module carries out environment analysis on the environment of the LED display screen, the display screen intelligent regulation and control module combines the environment analysis with area personnel analysis so as to realize intelligent regulation and control of the brightness of the LED display screen, the intelligent degree is high, and the abnormal operation process of the LED display screen is subjected to abnormal analysis through the display screen abnormal management and control module so as to play a role in reminding in time, so that management staff can carry out maintenance and overhaul of the LED display screen and abnormal diagnosis in time.

Description

Intelligent control method and control system based on LED display screen
Technical Field
The invention relates to the technical field of display screen supervision, in particular to an intelligent control method and a control system based on an LED display screen.
Background
A display screen, which is also commonly called a monitor, is a display tool for displaying a certain electronic document on a screen through a specific transmission device and reflecting the same to human eyes, and can be classified into a cathode ray tube display, a plasma display, a liquid crystal display, etc., according to the manufacturing materials; at present, when a large-sized LED display screen is controlled, the LED display screen generally continuously operates according to the set brightness, the automatic adaptive brightness regulation and control of the LED display screen cannot be realized through regional environment analysis and regional personnel analysis, abnormal analysis and early warning in the movement process are difficult to realize, the stable operation of the LED display screen is difficult to ensure, and the intelligent degree is low;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to provide an intelligent control method and a control system based on an LED display screen, which solve the problems that the existing LED display screen generally runs continuously according to set brightness, automatic adaptive brightness regulation and control of the LED display screen cannot be realized through regional environment analysis and regional personnel analysis, abnormal analysis early warning in the movement process is difficult to realize, stable running of the LED display screen is difficult to ensure, and the intelligent degree is low.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the intelligent control method based on the LED display screen comprises the following steps:
step one, acquiring a top-view two-dimensional plan view of an area where an LED display screen is located, dividing a display area, obtaining a display monitoring area of the LED display screen through area division, and sending the display monitoring area to a processor;
monitoring and analyzing the display monitoring area to generate a first personnel signal or a second personnel signal, and sending the first personnel signal or the second personnel signal to the intelligent regulation module through the processor;
thirdly, carrying out environmental analysis on the environment of the LED display screen to generate a primary environmental signal or a secondary environmental signal, and sending the primary environmental signal or the secondary environmental signal to the intelligent regulation module through the processor;
and step four, the intelligent display screen regulating and controlling module automatically and adaptively regulates the brightness of the LED display screen based on the monitoring analysis result and the environment analysis result.
Furthermore, the invention also provides an intelligent control system based on the LED display screen, which comprises a processor, a region analysis and division module, a display region monitoring module, a display environment detection module and a display screen intelligent regulation and control module, wherein the region analysis and division module is used for acquiring a overlook two-dimensional plan view of a region where the LED display screen is positioned and dividing the display region so as to acquire a display monitoring region of the LED display screen, and sending the display monitoring region to the processor for storage; the display area monitoring module is used for monitoring and analyzing the display monitoring area, generating a personnel primary signal or a personnel secondary signal through monitoring and analyzing, and sending the personnel primary signal or the personnel secondary signal to the intelligent regulation and control module through the processor;
the display environment detection module is used for carrying out environment analysis on the environment of the LED display screen, generating a primary environment signal or a secondary environment signal through the environment analysis, and sending the primary environment signal or the secondary environment signal to the intelligent regulation and control module through the processor; and the intelligent display screen regulating and controlling module is used for carrying out automatic adaptive regulation on the brightness of the LED display screen after receiving the monitoring analysis result and the environment analysis result.
Further, the specific operation process of the area analysis and configuration module includes:
the method comprises the steps of obtaining a overlooking two-dimensional plan view of an area where an LED display screen is located, marking a central point of the LED display screen as a display point, taking the display point as an endpoint as a line segment which is perpendicular to the LED display screen and extends towards the front of the LED display screen, enabling the extending distance to be L1, and marking an endpoint of one end, far away from the display point, of a corresponding extending line segment as a front standard point; the method comprises the steps of marking a corresponding straight line as a lateral straight line, marking two groups of end points with the distance L2 between the lateral straight line and a display point as a first lateral standard point and a second lateral standard point, and making straight lines which are parallel to the LED display screen and pass through the display point;
the method comprises the steps of marking a straight line which is parallel to an LED display screen and passes through a front standard point and is marked as a front straight line, marking a corresponding ray as a first lateral ray by taking the first lateral standard point as an end point and being perpendicular to the lateral straight line and extending forwards, marking a corresponding ray as a second lateral ray by taking the second lateral standard point as an end point and being perpendicular to the lateral straight line and extending forwards, and marking a region surrounded by the front straight line, the lateral straight line, the first lateral ray and the second lateral ray as a display monitoring region; and sending the display monitoring area to a processor for storage.
Further, the specific operation process of the display area monitoring module includes:
the regional personnel coefficient of the monitoring region is displayed in the detection period through analysis, the regional personnel coefficient is compared with a preset regional personnel coefficient threshold value in a numerical mode, a personnel primary signal is generated if the regional personnel coefficient exceeds the preset regional personnel coefficient threshold value, and a personnel secondary signal is generated if the regional personnel coefficient does not exceed the preset regional personnel coefficient threshold value; and sending the first-level personnel signal or the second-level personnel signal to the intelligent display screen regulating and controlling module through the processor.
Further, the analysis and acquisition method of regional personnel coefficients specifically comprises the following steps:
acquiring a display monitoring area of an LED display screen, acquiring personnel capturing the display monitoring area through a camera, marking the personnel number as a personnel monitoring value, marking the personnel in the display monitoring area as a capturing object i, acquiring the position of the capturing object i, marking the path distance between the position of the capturing object i and a display point as a visual angle distance, establishing a visual angle distance set of all the visual angle distances of the personnel, summing the visual angle distance sets, and taking an average value to acquire a visual angle average value; and (3) carrying out numerical comparison on the visual angle distance and a preset visual angle distance threshold, if the visual angle distance exceeds the preset visual angle distance threshold, marking the corresponding visual angle distance as an over-distance value, carrying out ratio calculation on the number of the over-distance values and the monitored value to obtain an over-distance occupation ratio, and carrying out numerical calculation on the monitored value, the visual angle mean value and the over-distance occupation ratio to obtain the regional personnel coefficient.
Further, if no person exists in the display monitoring area, marking the time when the display monitoring area is detected to be in an unmanned state as an unmanned state initial time, timing by taking the unmanned state initial time as a zero point, calculating the time difference between the detection time and the unmanned state initial time to obtain an unmanned state time difference, generating a brightness reduction signal when the unmanned state time difference reaches a first time difference threshold, generating a screen-extinguishing signal when the unmanned state time difference reaches a second time difference threshold, and sending the brightness reduction signal and the screen-extinguishing signal to a processor; and stopping timing and zeroing if the personnel reappears in the display monitoring area in the timing process of the unmanned state time difference not exceeding the first time difference threshold or not exceeding the second time difference threshold.
Further, the specific operation process of the display environment detection module includes:
acquiring the environment brightness and the environment permeability of the environment where the LED display screen is located in the detection period, performing numerical calculation on the environment brightness and the environment permeability to obtain an environment representation value, performing numerical comparison on the environment representation value and a preset environment representation threshold, generating a primary environment signal if the environment representation value exceeds the preset environment representation threshold, and generating a secondary environment signal if the environment representation value does not exceed the preset environment representation threshold; and sending the primary environmental signal or the secondary environmental signal to the display screen intelligent regulation module through the processor.
Further, the specific operation process of the display screen intelligent regulation module comprises the following steps:
acquiring a personnel primary signal or a personnel secondary signal and a primary environment signal or a secondary environment signal of a detection period display monitoring area, respectively marking the personnel primary signal and the personnel secondary signal as RX1 and RX2, respectively marking the personnel primary signal and the personnel secondary signal as HX1 and HX2; if RX 1U HX1 is generated, a high-brightness regulating signal is generated, if RX 2U HX2 is generated, a medium-brightness regulating signal is generated, and the rest conditions are generated to a low-brightness regulating signal;
the method comprises the steps of calling a preset high-brightness range, a preset middle-brightness range and a preset low-brightness range, wherein the preset high-brightness range, the preset middle-brightness range and the preset low-brightness range are in one-to-one correspondence with a high-brightness regulation signal, a middle-brightness regulation signal and a low-brightness regulation signal; and acquiring the actual display brightness of the LED display screen in the detection period, comparing the actual display brightness with a corresponding preset brightness range, and if the actual display brightness is not in the preset brightness range, sending out a control instruction to adjust the brightness of the LED display screen.
Further, the processor is in communication connection with the display screen abnormality management and control module, the display screen abnormality management and control module is used for carrying out abnormality analysis on the operation process of the LED display screen, generating an operation abnormality signal or an operation normal signal through abnormality analysis, sending the operation abnormality signal or the operation abnormality signal to the processor, the processor is in communication connection with the operation early warning module, the processor sends the operation abnormality signal to the operation early warning module, and the operation early warning module sends corresponding early warning when receiving the operation abnormality signal.
Further, the specific analysis procedure of the anomaly analysis is as follows:
obtaining continuous operation time length of the LED display screen, setting a plurality of detection time points in the detection time period, obtaining vibration data and internal temperature of the LED display screen at the detection time points, carrying out numerical calculation on the vibration data and the internal temperature to obtain time point representation values, marking the time point representation values exceeding a preset time point representation threshold value as abnormal time point values, carrying out ratio calculation on the number of the abnormal time point values and the number of the detection time points in the detection time period to obtain time point deviation values, carrying out numerical calculation on the time point deviation values and the continuous operation time length to obtain abnormal analysis values, carrying out numerical comparison on the abnormal analysis values and a preset abnormal analysis threshold value, generating operation abnormal signals if the abnormal analysis values exceed the preset abnormal analysis threshold value, and otherwise, generating operation normal signals.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the area analysis and arrangement module is used for carrying out display area arrangement based on a overlook two-dimensional plan view of an area where the LED display screen is positioned so as to obtain a display monitoring area of the LED display screen, the display monitoring area is subjected to monitoring analysis by the display area monitoring module so as to generate a first-level signal or a second-level signal of personnel, the environment of the LED display screen is subjected to environment analysis by the display environment detection module so as to generate a first-level environment signal or a second-level environment signal, the brightness of the LED display screen is automatically and adaptively adjusted after a monitoring analysis result and an environment analysis result are received by the display screen intelligent regulation and control module, and the intelligent regulation and control of the brightness of the LED display screen are realized by combining the environment analysis of the LED display screen with the area personnel analysis;
2. according to the invention, the operation process of the LED display screen is subjected to abnormality analysis through the display screen abnormality management and control module, an operation abnormality signal or an operation normal signal is generated through the abnormality analysis, the processor sends the operation abnormality signal to the operation early-warning module, and the operation early-warning module sends corresponding early warning when receiving the operation abnormality signal, so that a prompt effect is achieved, the maintenance and the abnormality diagnosis analysis of the LED display screen are facilitated for corresponding management staff in time, the LED display screen is stopped according to the requirement, the stable operation of the LED display screen is ensured, and the service life of the LED display screen is prolonged.
Drawings
For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a system block diagram of a second embodiment of the present invention;
fig. 3 is a system block diagram of a third embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, the intelligent control method based on the LED display screen provided by the invention comprises the following steps:
step one, acquiring a top-view two-dimensional plan view of an area where an LED display screen is located, dividing a display area, obtaining a display monitoring area of the LED display screen through area division, and sending the display monitoring area to a processor;
monitoring and analyzing the display monitoring area to generate a first personnel signal or a second personnel signal, and sending the first personnel signal or the second personnel signal to the intelligent regulation module through the processor;
thirdly, carrying out environmental analysis on the environment of the LED display screen to generate a primary environmental signal or a secondary environmental signal, and sending the primary environmental signal or the secondary environmental signal to the intelligent regulation module through the processor;
and step four, the intelligent display screen regulating and controlling module automatically and adaptively regulates the brightness of the LED display screen based on the monitoring analysis result and the environment analysis result.
Examples
As shown in fig. 2, the difference between the present embodiment and embodiment 1 lies in that, the intelligent control system based on the LED display screen includes a processor, a region analysis and planning module, a display region monitoring module, a display environment detection module and a display screen intelligent regulation module, where the processor is in communication connection with the region analysis and planning module, the display region monitoring module, the display environment detection module and the display screen intelligent regulation module, the region analysis and planning module collects a top-view two-dimensional plan view of a region where the LED display screen is located and performs display region planning so as to obtain a display monitoring region of the LED display screen, and the specific operation process of the region analysis and planning module is as follows:
the method comprises the steps of obtaining a overlooking two-dimensional plan view of an area where an LED display screen is located, marking a central point of the LED display screen as a display point, taking the display point as an endpoint as a line segment which is perpendicular to the LED display screen and extends towards the front of the LED display screen, enabling the extending distance to be L1, and marking an endpoint of one end, far away from the display point, of a corresponding extending line segment as a front standard point; the method comprises the steps of marking a corresponding straight line as a lateral straight line, marking two groups of end points with the distance L2 between the lateral straight line and a display point as a first lateral standard point and a second lateral standard point, and making straight lines which are parallel to the LED display screen and pass through the display point;
the method comprises the steps of marking a straight line which is parallel to an LED display screen and passes through a front standard point and is marked as a front straight line, marking a corresponding ray as a first lateral ray by taking the first lateral standard point as an end point and being perpendicular to the lateral straight line and extending forwards, marking a corresponding ray as a second lateral ray by taking the second lateral standard point as an end point and being perpendicular to the lateral straight line and extending forwards, and marking a region surrounded by the front straight line, the lateral straight line, the first lateral ray and the second lateral ray as a display monitoring region; and sending the display monitoring area to a processor for storage.
The display area monitoring module monitors and analyzes the display monitoring area, generates a first personnel signal or a second personnel signal through monitoring and analyzing, and sends the first personnel signal or the second personnel signal to the intelligent regulation and control module through the processor; the specific analysis process of the display area monitoring module is as follows:
acquiring a display monitoring area of an LED display screen, acquiring personnel in the display monitoring area in a detection period by a camera, marking the personnel in the display monitoring area as a capturing object i, i= {0,1,2 …, n }, wherein n represents the number of the personnel in the display monitoring area and n is zero or a positive integer; the method comprises the steps of obtaining the position of a capturing object i, marking the path distance between the position of the capturing object i and a display point as a visual angle distance, establishing a visual angle distance set of visual angle distances of all people, carrying out summation calculation on the visual angle distance set, and obtaining a visual angle mean value SJ by taking an average value; comparing the view angle distance with a preset view angle distance threshold value in a numerical mode, and marking the corresponding view angle distance as an over-distance value if the view angle distance exceeds the preset view angle distance threshold value;
marking the number of people in the monitoring area displayed in the detection period as a monitored value JR, calculating the ratio of the number of the over-distance values to the monitored value to obtain an over-distance occupation ratio CZ, and calculating the monitored value JR, the visual angle mean value SJ and the over-distance occupation ratio CZ by a formula QX=a1 x JR+a2 x SJ+a3 x CZ to obtain an area personnel coefficient QX of the monitoring area displayed in the detection period; wherein a1, a2 and a3 are preset weight coefficients, a2 is smaller than a1 and smaller than a3; in addition, the numerical value of the regional personnel coefficient QX is in a direct proportion relation with the monitored value JR, the visual angle mean value SJ and the over-distance occupation ratio CZ, and the larger the numerical value of the regional personnel coefficient QX is, the larger the brightness required by the LED display screen is, so that most personnel can see the screen picture as clearly as possible;
the method comprises the steps of calling a preset regional personnel coefficient threshold value which is recorded and stored in advance, comparing a regional personnel coefficient QX with the preset regional personnel coefficient threshold value in a numerical mode, generating a personnel primary signal if the regional personnel coefficient QX exceeds the preset regional personnel coefficient threshold value, and generating a personnel secondary signal if the regional personnel coefficient QX does not exceed the preset regional personnel coefficient threshold value; and sending the first-level personnel signal or the second-level personnel signal to the intelligent display screen regulating and controlling module through the processor.
If no person exists in the display monitoring area, marking the time when the display monitoring area is detected to be in an unmanned state as an unmanned state initial time, timing by taking the unmanned state initial time as a zero point, calculating the time difference between the detection time and the unmanned state initial time to obtain an unmanned state time difference, generating a brightness reduction signal when the unmanned state time difference reaches a first time difference threshold, generating a screen extinguishing signal when the unmanned state time difference reaches a second time difference threshold, and sending the brightness reduction signal and the screen extinguishing signal to a processor, thereby being beneficial to reducing energy consumption and further improving the intelligent degree; and stopping timing and zeroing if the personnel reappears in the display monitoring area in the timing process of the unmanned state time difference not exceeding the first time difference threshold or not exceeding the second time difference threshold.
The display environment detection module performs environment analysis on the environment of the LED display screen, generates a primary environment signal or a secondary environment signal through the environment analysis, and sends the primary environment signal or the secondary environment signal to the intelligent regulation and control module through the processor; the specific operation process of the display environment detection module is as follows:
the method comprises the steps that the environment brightness and the environment permeability of the environment where the LED display screen is located in a detection period are obtained and marked as HL and HT respectively, wherein the environment permeability HT is a data value representing the cleanliness of the environment air where the LED display screen is located, the lower the dust concentration in the environment is, the smaller the value of the environment permeability HT is, and the greater the visibility is, the more the display screen is facilitated to be seen; calculating the environment brightness HL and the environment permeability HT according to a formula HB=b1, HL+b2, and obtaining an environment representation value HB; wherein b1 and b2 are preset proportionality coefficients, b1 is larger than b2 and larger than 0, and the numerical value of the environment representation value HB is in a direct proportion relation with the environment brightness HL and the environment permeability HT;
the larger the value of the environment brightness HL and the larger the value of the environment permeability HT, the larger the value of the environment representation value HB shows that the brightness of the LED display screen is required to be improved to ensure the look and feel; comparing the environment representation value HB with a preset environment representation threshold value, generating a first-level environment signal if the environment representation value HB exceeds the preset environment representation threshold value, and generating a second-level environment signal if the environment representation value HB does not exceed the preset environment representation threshold value; and sending the primary environmental signal or the secondary environmental signal to the display screen intelligent regulation module through the processor.
The intelligent control module of the display screen carries out automatic adaptive adjustment on the brightness of the LED display screen after receiving the monitoring analysis result and the environment analysis result; the specific operation process of the intelligent control module of the display screen is as follows:
acquiring a personnel primary signal or a personnel secondary signal and a primary environment signal or a secondary environment signal of a detection period display monitoring area, respectively marking the personnel primary signal and the personnel secondary signal as RX1 and RX2, respectively marking the personnel primary signal and the personnel secondary signal as HX1 and HX2; if RX 1U HX1 is generated, a high-brightness regulating signal is generated, if RX 2U HX2 is generated, a medium-brightness regulating signal is generated, and if RX 1U HX2 is generated or RX 2U HX1 is generated, a low-brightness regulating signal is generated;
the method comprises the steps of calling a preset high-brightness range, a preset middle-brightness range and a preset low-brightness range, wherein the preset high-brightness range, the preset middle-brightness range and the preset low-brightness range are in one-to-one correspondence with a high-brightness regulation signal, a middle-brightness regulation signal and a low-brightness regulation signal; and acquiring the actual display brightness of the LED display screen in the detection period, comparing the actual display brightness with the corresponding preset brightness range, and if the actual display brightness is not in the preset brightness range, sending out a control instruction to adjust the brightness of the LED display screen, so that the automatic and reasonable control of the brightness of the LED display screen is realized, and the intelligent degree is high.
Examples
As shown in fig. 3, the difference between this embodiment and embodiments 1 and 2 is that the processor is communicatively connected to a display screen abnormality management and control module, and the display screen abnormality management and control module is configured to perform an abnormality analysis on an operation process of the LED display screen, where a specific analysis process of the abnormality analysis is as follows:
obtaining continuous operation time length of the LED display screen, marking the continuous operation time length as XC, setting a plurality of detection time points in the detection time period, and obtaining vibration data and internal temperature of the LED display screen at the detection time points, and marking the vibration data and the internal temperature as WH and WP respectively, wherein the vibration data WH is a data magnitude value representing both vibration frequency and vibration amplitude, and the larger the vibration frequency is, the larger the vibration amplitude is, the larger the value of the vibration data is, so that the abnormal vibration condition of the LED display screen is indicated; calculating the vibration data WH and the internal temperature WP through a formula SB=tq1+tq2; wherein tq1 and tq2 are preset weight coefficients, and tq1 is more than 0 and less than tq2;
it should be noted that, the magnitude of the time point representation value SB is in a direct proportion relation with the vibration data WH and the internal temperature WP, and the larger the magnitude of the time point representation value SB is, the greater the possibility that the LED display screen has abnormality corresponding to the detection time point is; performing numerical comparison on the time point representation value and a preset time point representation threshold value, marking the time point representation value exceeding the preset time point representation threshold value as an abnormal time point value, and performing ratio calculation on the number of abnormal time point values in the detection period and the number of detection time points to obtain a time point deviation value SP;
performing numerical calculation on the time point deviation value SP and the continuous operation duration XC through a formula FX= (tk1X SP+tk2X)/(tk1+tk2) to obtain an abnormal analysis value FX; wherein, tk1 and tk2 are preset proportionality coefficients, and tk1 is more than tk2 is more than 1; and the larger the value of the abnormal analysis value FX is, the greater the possibility that the LED display screen is abnormal in the detection period is indicated; and carrying out numerical comparison on the abnormal analysis value FX and a preset abnormal analysis threshold value, generating an operation abnormal signal if the abnormal analysis value FX exceeds the preset abnormal analysis threshold value, and generating an operation normal signal if the abnormal analysis value FX does not exceed the preset abnormal analysis threshold value.
The operation process of the LED display screen is subjected to anomaly analysis through the display screen anomaly management and control module, an operation anomaly signal or an operation normal signal is generated through the anomaly analysis, the operation anomaly signal or the operation anomaly signal is sent to the processor, the processor is in communication connection with the operation early warning module, the processor sends the operation anomaly signal to the operation early warning module, the operation early warning module sends out corresponding early warning when receiving the operation anomaly signal, the prompt effect is achieved, the maintenance and the anomaly diagnosis analysis of the LED display screen are conducted by corresponding management staff in time, the LED display screen is stopped to operate according to the requirement, and the stable operation of the LED display screen is guaranteed and the service life of the LED display screen is prolonged.
The working principle of the invention is as follows: when the LED display screen brightness intelligent control system is used, the area analysis and planning module is used for carrying out display area planning based on a overlook two-dimensional plan view of an area where the LED display screen is located so as to obtain a display monitoring area of the LED display screen, the display monitoring area is monitored and analyzed by the display area monitoring module so as to generate a personnel primary signal or a personnel secondary signal, the personnel primary signal or the personnel secondary signal is sent to the intelligent control module through the processor, the environment of the LED display screen is analyzed by the display environment detection module so as to generate a primary environment signal or a secondary environment signal, the primary environment signal or the secondary environment signal is sent to the intelligent control module through the processor, the brightness of the LED display screen is automatically and adaptively adjusted after a monitoring analysis result and an environment analysis result are received by the display screen intelligent control module, and the intelligent control of the LED display screen brightness is realized by combining the environment analysis of the LED display screen with the regional personnel analysis, so that the use effect is excellent.
The above formulas are all formulas with dimensions removed and numerical values calculated, the formulas are formulas with a large amount of data collected for software simulation to obtain the latest real situation, and preset parameters in the formulas are set by those skilled in the art according to the actual situation. The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (6)

1. The intelligent control system based on the LED display screen is characterized by comprising a processor, a region analysis and planning module, a display region monitoring module, a display environment detection module and a display screen intelligent regulation and control module, wherein the region analysis and planning module is used for acquiring a overlooking two-dimensional plan view of a region where the LED display screen is positioned and planning a display region so as to acquire a display monitoring region of the LED display screen, and sending the display monitoring region to the processor for storage; the display area monitoring module is used for monitoring and analyzing the display monitoring area, generating a personnel primary signal or a personnel secondary signal through monitoring and analyzing, and sending the personnel primary signal or the personnel secondary signal to the intelligent regulation and control module through the processor;
the display environment detection module is used for carrying out environment analysis on the environment of the LED display screen, generating a primary environment signal or a secondary environment signal through the environment analysis, and sending the primary environment signal or the secondary environment signal to the intelligent regulation and control module through the processor; the intelligent control module of the display screen carries out automatic adaptive adjustment on the brightness of the LED display screen after receiving the monitoring analysis result and the environment analysis result;
the specific operation process of the display area monitoring module comprises the following steps:
the regional personnel coefficient of the monitoring region is displayed in the detection period through analysis, the regional personnel coefficient is compared with a preset regional personnel coefficient threshold value in a numerical mode, a personnel primary signal is generated if the regional personnel coefficient exceeds the preset regional personnel coefficient threshold value, and a personnel secondary signal is generated if the regional personnel coefficient does not exceed the preset regional personnel coefficient threshold value; the first-level signal or the second-level signal of the personnel is sent to the intelligent regulation and control module of the display screen through the processor;
the analysis and acquisition method of regional personnel coefficients specifically comprises the following steps:
acquiring a display monitoring area of an LED display screen, acquiring personnel capturing the display monitoring area through a camera, marking the personnel number as a personnel monitoring value, marking the personnel in the display monitoring area as a capturing object i, acquiring the position of the capturing object i, marking the path distance between the position of the capturing object i and a display point as a visual angle distance, establishing a visual angle distance set of all the visual angle distances of the personnel, summing the visual angle distance sets, and taking an average value to acquire a visual angle average value; comparing the view angle distance with a preset view angle distance threshold value, marking the corresponding view angle distance as an over-distance value if the view angle distance exceeds the preset view angle distance threshold value, calculating the ratio of the number of the over-distance values to the monitored value to obtain an over-distance occupation ratio, and calculating the numerical values of the monitored value, the view angle mean value and the over-distance occupation ratio to obtain an regional personnel coefficient;
if no person exists in the display monitoring area, marking the time when the display monitoring area is detected to be in an unmanned state as an unmanned state initial time, timing by taking the unmanned state initial time as a zero point, calculating the time difference between the detection time and the unmanned state initial time to obtain an unmanned state time difference, generating a brightness reducing signal when the unmanned state time difference reaches a first time difference threshold, and generating a screen-extinguishing signal when the unmanned state time difference reaches a second time difference threshold, wherein the second time difference threshold/2 is more than or equal to the first time difference threshold; sending the brightness reduction signal and the screen-off signal to a processor; and stopping timing and zeroing if the personnel reappears in the display monitoring area in the timing process of the unmanned state time difference not exceeding the first time difference threshold or not exceeding the second time difference threshold.
2. The intelligent control system based on the LED display screen according to claim 1, wherein the specific operation process of the area analysis and configuration module comprises:
the method comprises the steps of obtaining a overlooking two-dimensional plan view of an area where an LED display screen is located, marking a central point of the LED display screen as a display point, taking the display point as an endpoint as a line segment which is perpendicular to the LED display screen and extends towards the front of the LED display screen, enabling the extending distance to be L1, and marking an endpoint of one end, far away from the display point, of a corresponding extending line segment as a front standard point; the method comprises the steps of marking a corresponding straight line as a lateral straight line, marking two groups of end points with the distance L2 between the lateral straight line and a display point as a first lateral standard point and a second lateral standard point, and making straight lines which are parallel to the LED display screen and pass through the display point;
the method comprises the steps of marking a straight line which is parallel to an LED display screen and passes through a front standard point and is marked as a front straight line, marking a corresponding ray as a first lateral ray by taking the first lateral standard point as an end point and being perpendicular to the lateral straight line and extending forwards, marking a corresponding ray as a second lateral ray by taking the second lateral standard point as an end point and being perpendicular to the lateral straight line and extending forwards, and marking a region surrounded by the front straight line, the lateral straight line, the first lateral ray and the second lateral ray as a display monitoring region; and sending the display monitoring area to a processor for storage.
3. The intelligent control system based on an LED display screen according to claim 1, wherein the specific operation process of the display environment detection module includes:
acquiring the environment brightness and the environment permeability of the environment where the LED display screen is located in the detection period, performing numerical calculation on the environment brightness and the environment permeability to obtain an environment representation value, performing numerical comparison on the environment representation value and a preset environment representation threshold, generating a primary environment signal if the environment representation value exceeds the preset environment representation threshold, and generating a secondary environment signal if the environment representation value does not exceed the preset environment representation threshold; and sending the primary environmental signal or the secondary environmental signal to the display screen intelligent regulation module through the processor.
4. The intelligent control system based on the LED display screen according to claim 3, wherein the specific operation process of the intelligent control module for the display screen comprises:
acquiring a personnel primary signal or a personnel secondary signal and a primary environment signal or a secondary environment signal of a detection period display monitoring area, respectively marking the personnel primary signal and the personnel secondary signal as RX1 and RX2, respectively marking the personnel primary signal and the personnel secondary signal as HX1 and HX2; if RX 1U HX1 is generated, a high-brightness regulating signal is generated, if RX 2U HX2 is generated, a medium-brightness regulating signal is generated, and the rest conditions are generated to a low-brightness regulating signal;
the method comprises the steps of calling a preset high-brightness range, a preset middle-brightness range and a preset low-brightness range, wherein the preset high-brightness range, the preset middle-brightness range and the preset low-brightness range are in one-to-one correspondence with a high-brightness regulation signal, a middle-brightness regulation signal and a low-brightness regulation signal; and acquiring the actual display brightness of the LED display screen in the detection period, comparing the actual display brightness with a corresponding preset brightness range, and if the actual display brightness is not in the preset brightness range, sending out a control instruction to adjust the brightness of the LED display screen.
5. The intelligent control system based on the LED display screen according to claim 1, wherein the processor is in communication connection with the display screen abnormality management and control module, the display screen abnormality management and control module is used for carrying out abnormality analysis on the operation process of the LED display screen, generating an operation abnormality signal or an operation normal signal through abnormality analysis, sending the operation abnormality signal or the operation abnormality signal to the processor, the processor is in communication connection with the operation early-warning module, the processor sends the operation abnormality signal to the operation early-warning module, and the operation early-warning module sends corresponding early warning when receiving the operation abnormality signal.
6. The intelligent control system based on the LED display screen according to claim 5, wherein the specific analysis process of the anomaly analysis is as follows:
obtaining continuous operation time length of the LED display screen, setting a plurality of detection time points in the detection time period, obtaining vibration data and internal temperature of the LED display screen at the detection time points, carrying out numerical calculation on the vibration data and the internal temperature to obtain time point representation values, marking the time point representation values exceeding a preset time point representation threshold value as abnormal time point values, carrying out ratio calculation on the number of the abnormal time point values and the number of the detection time points in the detection time period to obtain time point deviation values, carrying out numerical calculation on the time point deviation values and the continuous operation time length to obtain abnormal analysis values, carrying out numerical comparison on the abnormal analysis values and a preset abnormal analysis threshold value, generating operation abnormal signals if the abnormal analysis values exceed the preset abnormal analysis threshold value, and otherwise, generating operation normal signals.
CN202310504379.9A 2023-05-08 2023-05-08 Intelligent control method and control system based on LED display screen Active CN116229890B (en)

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