CN114693958A - Automatic control method and system for smart city LED display application - Google Patents
Automatic control method and system for smart city LED display application Download PDFInfo
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Abstract
The application discloses automatic control method and system for smart city LED display application, wherein the method comprises the following steps: acquiring a surface image of a display screen at regular time; comparing the surface image of the display screen with the standard image; when the difference between the surface image and the standard image exceeds a threshold value, sending a control instruction; based on control command, control belt cleaning device washs the display screen surface, and this application is through contrasting display screen surface image, judges whether need carry out surface cleaning, realizes intelligent display screen automatic control.
Description
Technical Field
The application relates to the field of display screens, in particular to an automatic control method and system for LED display application of a smart city.
Background
Along with the popularization of the internet of things, more and more products or equipment are combined with the internet of things to realize information automation, a smart city is a future trend, in the construction process of the smart city, a digital LED display screen is widely applied, intelligent identification boards which are visible everywhere on the road can display advertisement or traffic violation information or government affair information and the like, but the general intelligent identification boards are installed at higher positions, on one hand, the cleaning is troublesome, on the other hand, the intelligent identification boards also need to be cleaned manually and periodically, and are not intelligent enough, so that the prior art is still to be improved.
Disclosure of Invention
The purpose of this application is to realize the automatic control of wisdom city display screen.
The technical purpose of the application is realized by the following technical scheme:
the first aspect of this application discloses a wisdom city LED display application automatic control method, wherein, includes:
acquiring a surface image of a display screen at regular time;
comparing the surface image of the display screen with the standard image;
when the difference between the surface image and the standard image exceeds a threshold value, sending a control instruction;
and controlling the cleaning device based on the control instruction to clean the surface of the display screen.
According to the scheme, the surface image of the display screen is obtained, the surface image is compared with the standard image, whether the surface image of the display screen exceeds a threshold value with the difference of the standard image or not is judged, whether the surface cleaning of the display screen needs to be carried out is intelligently judged, when the difference exceeds the threshold value, a control instruction is automatically sent, the cleaning device is controlled to carry out the surface cleaning of the display screen, manual cleaning is not needed, intelligent control can be carried out when the surface of the display screen needs to be cleaned, automatic cleaning is carried out, and cleaning efficiency is improved.
Optionally, the method for automatically controlling LED display application in a smart city, wherein the step of periodically acquiring the surface image of the display screen further includes:
and acquiring the environmental parameters of the area where the display screen is located, and acquiring the surface image of the display screen in real time when the environmental parameters reach a second threshold value.
According to the technical scheme, the environmental parameters are acquired, and further, the intelligent starting judgment can be carried out outside the time of the timing judgment based on the environmental parameters, and when the environment is poor, the real-time judgment is carried out, so that the waiting time of the timing judgment is reduced.
Optionally, the method for automatically controlling LED display application in the smart city, wherein the method for comparing the surface image of the display screen with the standard image includes:
splitting a surface image of a display screen into a plurality of sub-images;
and comparing each sub-image with the standard image of the sub-image one by one.
According to the technical scheme, the split is carried out on the surface image of the display screen, the split sub-images are compared, the local surface image based on the display screen can be obtained, the comparison is carried out, and whether the local part of the display screen needs to be cleaned or not can be judged conveniently.
Optionally, the method for automatically controlling LED display application in a smart city, wherein when the difference between the surface image and the standard image exceeds a threshold, the method for sending the control instruction includes:
when the difference between the sub-image and the standard image of the sub-image exceeds a first threshold value, sending a control instruction to a display screen area corresponding to the sub-image;
and when the average difference of the images of the whole display screen exceeds a second threshold value, sending a control instruction to the whole display screen area.
According to the scheme, the cleaning of the local display screen is carried out through the judgment of the sub-images, and the cleaning of the whole display screen can be carried out aiming at the judgment of the whole image.
Optionally, the method for automatically controlling LED display application in a smart city further includes:
and sending a replacement command periodically to control the cleaning device to move so as to replace or maintain the cleaning device.
According to the scheme, the cleaning device can be replaced or maintained regularly, the cleaning device is controlled to move to achieve, a user does not need to go to a high place to clean, the cleaning efficiency is improved, and the safety risk is reduced.
Optionally, the method for automatically controlling LED display application in a smart city further includes:
and acquiring the road condition information, and switching the road condition information or the traffic accident information to display on a display screen when the road condition is traffic jam or traffic accident.
According to the scheme, through acquiring the road condition information, when a traffic jam or a traffic accident occurs, the intelligent switching display screen displays, the driving vehicle can know the road condition in time, and the safe distance can be shunted or noticed in time.
Optionally, the method for automatically controlling LED display application in a smart city further includes:
and acquiring a traffic instruction, generating prompt information to display on the display screen when a fire truck exists near the display screen area, and sending out voice broadcast.
According to the scheme, when the fire engine exists near the display area, the prompt is timely given out by obtaining the traffic prompt, the driving vehicle is convenient to remind to give way, and waiting time of the fire engine is reduced.
This application on the other hand still discloses a wisdom city LED shows application automatic control system, wherein, includes:
the image acquisition module is used for acquiring a surface image of the display screen at regular time;
the image comparison module is used for comparing the surface image of the display screen with the standard image;
the threshold value judging module is used for sending a control instruction when the difference between the surface image and the standard image exceeds a threshold value;
and the cleaning control module is used for controlling the cleaning device based on the control instruction to clean the surface of the display screen.
According to the scheme, the surface image of the display screen is obtained, the surface image is compared with the standard image, whether the surface image of the display screen exceeds a threshold value with the difference of the standard image or not is judged, whether the surface cleaning of the display screen needs to be carried out is intelligently judged, when the difference exceeds the threshold value, a control instruction is automatically sent, the cleaning device is controlled to carry out the surface cleaning of the display screen, manual cleaning is not needed, intelligent control can be carried out when the surface of the display screen needs to be cleaned, automatic cleaning is carried out, and cleaning efficiency is improved.
Optionally, the smart city LED display application automatic control system, wherein the image comparison module includes:
the splitting unit is used for splitting the surface image of the display screen into a plurality of sub-images;
and the sub-image comparison unit is used for comparing each sub-image with the standard image of the sub-image one by one.
According to the technical scheme, the split is carried out on the surface image of the display screen, the split sub-images are compared, the local surface image based on the display screen can be obtained, the comparison is carried out, and whether the local part of the display screen needs to be cleaned or not can be judged conveniently.
Optionally, the smart city LED display application automatic control system, wherein the threshold value determining module includes:
the local judgment unit is used for sending a control instruction to the display screen area corresponding to the sub-image when the difference between the sub-image and the standard image of the sub-image exceeds a first threshold value;
and the integral judgment unit is used for sending a control instruction to the integral display screen area when the average difference of the images of the integral display screen exceeds a second threshold value.
According to the scheme, the cleaning of the local display screen is carried out through the judgment of the sub-images, and the cleaning of the whole display screen can be carried out aiming at the judgment of the whole image.
In summary, the application discloses a smart city LED display application automatic control method and system, wherein the method includes: acquiring a surface image of a display screen at regular time; comparing the surface image of the display screen with the standard image; when the difference between the surface image and the standard image exceeds a threshold value, sending a control instruction; based on control command, control belt cleaning device washs the display screen surface, and this application is through contrasting display screen surface image, judges whether need carry out surface cleaning, realizes intelligent display screen automatic control.
Drawings
Fig. 1 is a flowchart illustrating steps of an automatic control method for LED display application in a smart city according to the present application.
Fig. 2 is a flowchart of step S2 of the smart city LED display application automatic control method according to the present application.
Fig. 3 is a flowchart of step S3 of the method for automatically controlling LED display application in smart city according to the present application.
Fig. 4 is a block diagram of an automatic control system for LED display application in a smart city according to the present application.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses an automatic control method for smart city LED display application, which refers to FIG. 1 and is a flow chart of steps of the method, wherein the method comprises the following steps:
s1, acquiring a surface image of a display screen at regular time;
s2, comparing the surface image based on the display screen with a standard image;
s3, when the difference between the surface image and the standard image exceeds a threshold value, sending a control instruction;
and S4, controlling a cleaning device based on the control instruction to clean the surface of the display screen.
In the embodiment of the application, in order to realize automatic control of the display screen and analyze the surface image of the display screen, specifically, one or more cameras may be disposed on the display screen to photograph or capture a video of the surface of the display screen to obtain the surface image of the display screen, and in order to determine whether surface cleaning is required, the surface image of the display screen may be compared with a standard image, generally, when the display screen needs cleaning, a determination threshold is provided, when a difference between the surface image and the standard image exceeds the threshold, the surface image is too blurred or dirty and needs cleaning, and when the difference between the surface image and the standard image is within a threshold range, the surface image can also ensure normal display of the display screen, cleaning is not required, and when the difference between the surface image and the standard image exceeds the threshold, a control instruction is sent to control the cleaning device, the surface of the display screen is cleaned, by the scheme, the surface image of the display screen can be based on, the surface image is compared with the standard image, whether the difference exceeds a threshold value is judged, whether the surface cleaning is needed is judged, the intelligent cleaning on the surface of the display screen can be realized, the manual operation is not needed, the surface is automatically cleaned when the surface is needed to be cleaned, the cleaning efficiency is improved, the surface image of the display screen is obtained at regular time for judgment, and whether the surface of the display screen needs to be cleaned can be timely known.
In this application, in the embodiment, the foregoing scheme mentions that the surface image is obtained regularly for judgment, but there is still a situation that the surface of the display screen needs to be cleaned outside the time obtained regularly, and therefore, in this application, the method for automatically controlling the LED display application in the smart city further includes:
and acquiring the environmental parameters of the area where the display screen is located, and acquiring the surface image of the display screen in real time when the environmental parameters reach a second threshold value.
In the embodiment of the application, in order to avoid outside the time of regularly acquireing display screen surface image, the display screen surface is dirty excessively, the circumstances that need carry out the washing takes place, this application is preferred, acquire the regional environmental parameter of display screen place, the demonstration of display screen, because the work of lamp pearl, can produce the heat, for example, in rainy day, in fact, need not carry out the surface cleaning of display screen, but after rain, because the aqueous vapor is taken away to the heat, can form the incrustation scale on the display screen surface, perhaps rainwash, bring dust or impurity to the display screen surface, therefore, based on environmental parameter, when environmental parameter reaches the second threshold value, immediately, acquire the surface image of display screen and carry out instant judgement. Environmental parameter's factor newspaper PM2.5 or the humiture in the air, specific parameter sets for, can the user set for by oneself, for example, when PM2.5 exceeds standard, the particulate matter in the air is more, can form the dust on the display screen surface, consequently, outside the time of regularly judging, also need judge whether need carry out surface cleaning, through above-mentioned scheme, the cleaning efficiency of promotion display screen that can be further to it is more intelligent.
In the foregoing solution, it is mentioned that whether to generate the control command is determined based on image comparison, in an embodiment of the present application, specifically, the method for automatically controlling LED display application in a smart city is described with reference to fig. 2, which is a flowchart of the step S2, where the method for comparing a surface image of a display screen with a standard image includes:
s201, splitting a surface image of a display screen into a plurality of sub-images;
s202, comparing each sub-image with the standard image of the sub-image one by one.
In the embodiment of the application, in order to more intelligently judge whether the image on the surface of the display screen needs to be cleaned, in practical application, the display screen is generally larger, the cleaning device can be generally selected as a windshield wiper, the display screen is cleaned through the windshield wiper, the area of the display screen is larger, all areas are not required to be cleaned in many times, therefore, in order to facilitate local cleaning, whether a local display screen needs to be cleaned or not needs to be judged, the acquired surface image of the display screen is split to obtain a plurality of sub-images, the specific number of the sub-images can be set according to the specific size of the display screen and the judgment accuracy, after the sub-images are acquired, the sub-images are compared with the standard images of the sub-images one by one, whether the sub-images are cleaned or not can be judged, therefore, the cleaning control of a local area can be realized, and the intellectualization of automatic cleaning of the display screen is further realized.
In the embodiment of the present application, in addition to the comparison of the whole pattern, the comparison of the local image may also be performed to determine whether local cleaning is required, so the embodiment of the present application further discloses a control instruction for specifically determining whether to send the whole or the local, the method for automatically controlling the LED display application in the smart city is described in the flow chart of step S3, referring to fig. 3, where when the difference between the surface image and the standard image exceeds the threshold, the method for sending the control instruction includes:
s301, when the difference between the sub-image and the standard image of the sub-image exceeds a first threshold value, sending a control instruction to a display screen area corresponding to the sub-image;
s302, when the average difference of the images of the whole display screen exceeds a second threshold value, a control instruction is sent to the whole display screen area.
In the embodiment of the present application, since the surface image of the entire display screen is split to obtain a plurality of sub-images, and whether local cleaning is required or not can be determined according to comparison of the sub-images, therefore, it is determined whether the difference between the sub-images and the standard image of the sub-images exceeds a first threshold, for example, if the difference between the sub-images and the standard image of the sub-images is set to 30%, that is, if the difference between the sub-images and the standard image of the sub-images is less than 30%, surface cleaning is not required, if the difference is greater than 30%, cleaning is required to be performed on the display screen area corresponding to the sub-images, except for cleaning the sub-images, that in order to ensure that the overall display screen is relatively balanced, if the average difference between the sub-images and the standard image of the sub-images exceeds a second threshold, a control instruction is sent to the display screen area to perform overall cleaning, and first, the second threshold must be less than 30%, if the local difference exceeds 30%, local cleaning is inevitably performed, for example, the second threshold is 20%, and if the average difference of the whole display screen is greater than 20%, it indicates that the whole surface is in a dirty state, the whole surface cleaning is required, and the average difference is an average value of the differences of all the sub-images.
In this application embodiment, can realize intelligent judgement, wash the display screen surface, and belt cleaning device also need to be changed or maintain, consequently, this application wisdom city LED display application automatic control method, wherein, the method still includes:
and sending a replacement command periodically to control the cleaning device to move so as to replace or maintain the cleaning device.
In the embodiment of the application, the replacing instruction can be sent regularly to control the cleaning device to move, and the cleaning device can be replaced or maintained. The cleaning device can be a brush, the brush is controlled to move through the control device, for example, a replacement instruction is sent, the cleaning device is driven by the pulleys and the like and slides to the ground from the inside or the outside of the supporting rod, maintenance personnel can replace or maintain the cleaning device, the cleaning device is controlled to move and reset, and the maintenance efficiency is improved.
In the embodiment of the application, further promote the intellectuality of display screen, wisdom city LED show and apply automatic control method, wherein, the method still includes:
and acquiring the road condition information, and switching the road condition information or the traffic accident information to display on a display screen when the road condition is traffic jam or traffic accident.
In the embodiment of the application, in order to enrich the application scene of the display screen and to realize the prompting function of the display screen more greatly, the data connection can be established with a government affairs service platform, such as a traffic management department, because the display screen has the function of displaying information, when traffic jam occurs or a traffic accident occurs, for example, in a tunnel or at a high speed, the traffic needs to be shunted or a safe distance is kept, and a rear vehicle is easy to collide again under the condition of no warning, therefore, the scheme of the application can acquire road condition information, switch the road condition information or traffic accident information to be displayed on the display screen when the traffic jam occurs or the traffic accident occurs based on the instruction of a traffic control department, and the distance from the current position of the display screen, road section information and the like are convenient for the running vehicle to know, and the detour or slow down is timely, avoiding accidents again.
In the embodiment of the application, further promote the intellectuality of display screen, wisdom city LED show and apply automatic control method, wherein, the method still includes:
and acquiring a traffic instruction, generating prompt information to display on the display screen when a fire truck exists near the display screen area, and sending out voice broadcast.
In the embodiment of this application, further enrich the application of display screen, in actual life, often can take place the fire engine and meet the traffic jam, lead to delaying the rescue opportunity, therefore, in the embodiment of this application, can be based on internet of things communication with traffic control department and fire department, information sharing, can acquire the positional information of fire engine, in time the signboard in the highway section near the fire engine give and indicate, show through the display screen, and can send voice broadcast, inform near vehicle, in time give way for the fire engine, guarantee the road unblocked of fire engine, reduce the roadblock, promote fire engine's rescue efficiency.
The utility model provides an automatic control system is used in wisdom city LED demonstration, the size of display screen is at 3-10 square meters, can realize audio and video integration to, can be based on environmental parameter, intelligent regulation illumination luminance, for example, in rainy day, ambient brightness is lower, and at this moment, even relatively lower luminance of display screen also can be very clear, and under the sufficient circumstances of sunshine, then need corresponding regulation display screen luminance, adapt to different environmental parameter. In addition, in the embodiment of the application, the display screen can be further connected to a weather station, weather information can be acquired, and related information can be acquired by a vehicle which is convenient to drive, so that further intelligentization is realized.
The aforesaid scheme has mentioned, can set up one or more camera, carries out the acquirement of display screen surface image, in this application embodiment, can also set up the camera and monitor, and is the same, supplies power through the power supply of display screen, except that can mains electricity supply, can also photovoltaic solar energy power generation. The display screen can be connected into a business chain, government affair propaganda, traffic warning, even wanted criminals, people seeking and the like can be achieved, and application of the display screen can be further enriched. In order to facilitate later maintenance, a storage can be further arranged to manage data, the data are transmitted, received data, even data such as replacement and maintenance are received, data analysis in later period is facilitated, and management of more intelligent combination can be achieved.
The embodiment of the present application further discloses an automatic control system for smart city LED display application, refer to fig. 4, which is a block diagram of the system, wherein the system includes:
the image acquisition module 100 is used for acquiring a surface image of the display screen at regular time;
an image comparison module 200 for comparing the surface image of the display screen with a standard image;
a threshold judgment module 300, configured to send a control instruction when a difference between the surface image and the standard image exceeds a threshold;
and the cleaning control module 400 is used for controlling the cleaning device to clean the surface of the display screen based on the control instruction.
In the embodiment of the application, in order to realize automatic control of the display screen and analyze the surface image of the display screen, specifically, one or more cameras may be disposed on the display screen to photograph or capture a video of the surface of the display screen to obtain the surface image of the display screen, and in order to determine whether surface cleaning is required, the surface image of the display screen may be compared with a standard image, generally, when the display screen needs cleaning, a determination threshold is provided, when a difference between the surface image and the standard image exceeds the threshold, the surface image is too blurred or dirty and needs cleaning, and when the difference between the surface image and the standard image is within a threshold range, the surface image can also ensure normal display of the display screen, cleaning is not required, and when the difference between the surface image and the standard image exceeds the threshold, a control instruction is sent to control the cleaning device, the surface of the display screen is cleaned, by the scheme, the surface image of the display screen can be based on, the surface image is compared with the standard image, whether the difference exceeds a threshold value is judged, whether the surface cleaning is needed is judged, the intelligent cleaning on the surface of the display screen can be realized, the manual operation is not needed, the surface is automatically cleaned when the surface is needed to be cleaned, the cleaning efficiency is improved, the surface image of the display screen is obtained at regular time for judgment, and whether the surface of the display screen needs to be cleaned can be timely known.
Further, wisdom city LED display application automatic control system, wherein, image contrast module includes:
the splitting unit is used for splitting the surface image of the display screen into a plurality of sub-images;
and the sub-image comparison unit is used for comparing each sub-image with the standard image of the sub-image one by one.
Further, wisdom city LED display application automatic control system, wherein, threshold value judgement module includes:
the local judgment unit is used for sending a control instruction to the display screen area corresponding to the sub-image when the difference between the sub-image and the standard image of the sub-image exceeds a first threshold value;
and the integral judgment unit is used for sending a control instruction to the integral display screen area when the average difference of the images of the integral display screen exceeds a second threshold value.
The specific implementation of each module or unit described above in the present application has been described in detail in the method steps, and therefore, is not described herein again.
The embodiments of the present invention are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. An automatic control method for smart city LED display application is characterized by comprising the following steps:
acquiring a surface image of a display screen at regular time;
comparing the surface image of the display screen with the standard image;
when the difference between the surface image and the standard image exceeds a threshold value, sending a control instruction;
and controlling the cleaning device based on the control instruction to clean the surface of the display screen.
2. The intelligent city LED display application automatic control method of claim 1, wherein the periodically acquiring surface images of a display screen further comprises:
and acquiring the environmental parameters of the area where the display screen is located, and acquiring the surface image of the display screen in real time when the environmental parameters reach a second threshold value.
3. The intelligent city LED display application automatic control method as claimed in claim 1, wherein the method for comparing with the standard image based on the surface image of the display screen comprises:
splitting a surface image of a display screen into a plurality of sub-images;
and comparing each sub-image with the standard image of the sub-image one by one.
4. The automatic control method for smart city LED display application according to claim 3, wherein when the difference between the surface image and the standard image exceeds a threshold value, the method for sending the control command comprises:
when the difference between the sub-image and the standard image of the sub-image exceeds a first threshold value, sending a control instruction to a display screen area corresponding to the sub-image;
and when the average difference of the images of the whole display screen exceeds a second threshold value, sending a control instruction to the whole display screen area.
5. The intelligent city LED display application automatic control method of claim 1, further comprising:
and sending a replacement command periodically to control the cleaning device to move so as to replace or maintain the cleaning device.
6. The intelligent city LED display application automatic control method of claim 1, further comprising:
and acquiring the road condition information, and switching the road condition information or the traffic accident information to display on a display screen when the road condition is traffic jam or traffic accident.
7. The intelligent city LED display application automatic control method of claim 1, further comprising:
and acquiring a traffic instruction, generating prompt information to display on the display screen when a fire truck exists near the display screen area, and sending out voice broadcast.
8. The utility model provides a wisdom city LED shows uses automatic control system which characterized in that includes:
the image acquisition module is used for acquiring a surface image of the display screen at regular time;
the image comparison module is used for comparing the surface image of the display screen with the standard image;
the threshold value judging module is used for sending a control instruction when the difference between the surface image and the standard image exceeds a threshold value;
and the cleaning control module is used for controlling the cleaning device to clean the surface of the display screen based on the control instruction.
9. The intelligent city LED display application automatic control system of claim 8, wherein the image comparison module comprises:
the splitting unit is used for splitting the surface image of the display screen into a plurality of sub-images;
and the sub-image comparison unit is used for comparing each sub-image with the standard image of the sub-image one by one.
10. The intelligent city LED display application automatic control system of claim 9, wherein the threshold value judging module comprises:
the local judgment unit is used for sending a control instruction to the display screen area corresponding to the sub-image when the difference between the sub-image and the standard image of the sub-image exceeds a first threshold value;
and the integral judgment unit is used for sending a control instruction to the integral display screen area when the average difference of the images of the integral display screen exceeds a second threshold value.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115446039A (en) * | 2022-09-26 | 2022-12-09 | 深圳市奥格斯特科技有限公司 | Visual inspection dust removal method, system, equipment and computer readable storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115446039A (en) * | 2022-09-26 | 2022-12-09 | 深圳市奥格斯特科技有限公司 | Visual inspection dust removal method, system, equipment and computer readable storage medium |
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