CN116257203B - Screen real-time control method based on personnel aggregation condition and storage medium - Google Patents
Screen real-time control method based on personnel aggregation condition and storage medium Download PDFInfo
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- CN116257203B CN116257203B CN202310022148.4A CN202310022148A CN116257203B CN 116257203 B CN116257203 B CN 116257203B CN 202310022148 A CN202310022148 A CN 202310022148A CN 116257203 B CN116257203 B CN 116257203B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004220 aggregation Methods 0.000 title claims abstract description 39
- 230000002776 aggregation Effects 0.000 title claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
- G06V20/53—Recognition of crowd images, e.g. recognition of crowd congestion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
Abstract
The invention discloses a screen real-time control method and a storage medium based on personnel aggregation condition, relating to the field of screen control, wherein the method comprises the following steps: periodically acquiring scene images of a viewing area corresponding to a screen to be controlled by taking preset intervals as a period; performing image recognition on the scene image to obtain the estimated number of people; judging whether a monitoring area with the corresponding estimated number of people being lower than or equal to a preset warning value exists in the searching range, and if so, generating diversion information according to the diversion area and the warning area; and displaying the diversion information into a screen to be controlled corresponding to the warning area so as to remind people in the warning area of diversion. The method can acquire and analyze the scene images to time the number of people in front of the screen, acquire a diversion area capable of diversion when the number of people exceeds a preset warning value, generate diversion information corresponding to the diversion area, and guide people to be dispersed by displaying the diversion information in the screen, so that aggregation condition is reduced.
Description
Technical Field
The invention relates to the technical field of screen control, in particular to a screen real-time control method and a storage medium based on personnel aggregation conditions.
Background
In order to enrich the life of people, large display screens are often built in places such as squares, parks and the like, and some places-related programs can be played in the display screens. And partially crafted or just updated programs tend to appeal to a large audience for aggregate viewing.
However, the risk of virus transmission and the like is easy to occur in the personnel gathering, and if the display screens are directly closed, the personnel gathering can be reduced, but the facilities are obviously wasted. There is a need for a control method that can flexibly adjust the content played on the screen according to the current people gathering situation.
Disclosure of Invention
The application provides a screen real-time control method and a storage medium based on personnel aggregation conditions, which can flexibly adjust the content played by a screen according to the current personnel aggregation conditions so as to reasonably guide personnel to reduce aggregation.
In a first aspect, the present application provides a method for controlling a screen in real time based on a person gathering situation, which adopts the following technical scheme:
a screen real-time control method based on personnel gathering condition comprises the following steps:
periodically acquiring scene images of a viewing area corresponding to a screen to be controlled by taking preset intervals as a period;
performing image recognition on the scene image to obtain the estimated number of people;
judging whether the estimated number of people exceeds a preset warning value,
if the estimated number of people exceeds a preset warning value, defining a corresponding observation area as a warning area, and determining a retrieval range according to the warning area;
judging whether a monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range,
if the information exists, taking a monitoring area with the estimated number of people being lower than or equal to a preset warning value as a shunting area, and generating shunting information according to the shunting area and the warning area;
and displaying the diversion information into a screen to be controlled corresponding to the warning area so as to remind people in the warning area of diversion.
According to the technical scheme, the number of people in front of the screen can be timed in a mode of acquiring and analyzing the scene image, when the number of people exceeds the preset warning value, the shunting area capable of shunting is acquired, shunting information corresponding to the shunting area is generated, and people are guided to be dispersed by displaying the shunting information in the screen, so that aggregation conditions are reduced.
Optionally, before the search range is generated according to the alert area, the method includes the following steps:
determining the corresponding viewing rate of the current warning area according to the scene image, wherein the viewing rate is characterized by the ratio of the number of people facing the screen in the face of the corresponding warning area to the estimated number of people;
judging whether the viewing rate corresponding to the current warning area exceeds a preset ratio,
if yes, generating a search range according to the warning area;
if not, controlling the corresponding screen to pause playing the current content and displaying preset prompt information to prompt personnel to reduce aggregation.
Optionally, the method further comprises the following steps: if the estimated number of people is lower than or equal to a preset warning value, counting according to the aggregation condition of the people identified in the scene image to obtain a plurality of aggregation values, selecting the aggregation value with the largest value as a comparison value, judging whether the comparison value exceeds a preset rated value, and if so, controlling a corresponding screen to additionally display preset prompt information to prompt the people to reduce aggregation.
Optionally, the method further comprises the following steps: if no monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range, acquiring the content to be played of the corresponding screen within a preset time, wherein the content to be played comprises advertisements and programs, and the preset time is smaller than or equal to a preset interval;
the content to be played is adjusted in a manner of increasing the advertisement duration and decreasing the program duration.
Optionally, if no monitoring area with the number of corresponding estimated persons lower than or equal to the preset warning value exists in the search range, obtaining the content to be played of the corresponding screen within the preset time, including the following steps:
if no monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range, acquiring a history playing mark corresponding to the warning area, judging whether the history playing mark is normal or not, if so, modifying the history playing mark into abnormal, and acquiring the content to be played of the corresponding screen in preset time;
if not, modifying the historical playing mark to be normal, controlling the corresponding screen to pause playing the current content and displaying preset prompt information to prompt personnel to reduce aggregation.
Optionally, the adjusting the content to be played in a manner of increasing the advertisement duration and decreasing the program duration includes the following steps:
screening reserved programs from programs of the content to be played, and sorting the reserved programs to form a program set;
sequentially splitting reserved programs in a program set to form minimum program fragments, wherein the duration of each minimum program fragment is smaller than or equal to the preset duration;
advertisements are inserted between adjacent minimum program segments to form new content to be played.
Optionally, the screening the reserved program from the programs of the content to be played includes the following steps:
the programs in the content to be played are sequenced from small to large according to the corresponding program time length to form a time length queue,
sequentially accumulating the program time lengths in the time length queues from front to back to generate a total program time length until the total program time length exceeds a preset program estimated time length, and taking a program corresponding to the total program time length as a reserved program.
Optionally, advertisements are inserted between the adjacent minimum program segments to form new content to be played, which includes the following steps:
calculating the estimated total advertisement time according to the total program time and the preset time;
determining the advertisement quantity according to the minimum program fragment number;
determining a single estimated time length according to the estimated total time length of the advertisements and the advertisement quantity,
generating a predicted duration range according to the single predicted duration;
and screening advertisements with the corresponding advertisement duration meeting the estimated duration range from preset advertisements to serve as advertisements to be inserted, wherein the number of the advertisements to be inserted is the same as the determined number of the advertisements.
Optionally, before sequentially accumulating the program durations in the queue to generate the total program duration, the method includes the following steps:
acquiring current playing content, and determining the residual duration of the current playing content through the content to be played;
judging whether the residual time length exceeds the time length corresponding to the minimum program segment,
if yes, the remaining time length is stored in the first position of the time length queue, and the remaining program time length is sequentially and backwardly extended.
In a second aspect, the present application provides a computer readable storage medium storing a computer program capable of being loaded by a processor and executing the above-described screen real-time control method based on a person aggregation situation.
In summary, the number of people in front of the screen is timed by acquiring and analyzing the scene image, and no matter whether the number of people in front of the screen exceeds the preset warning value, only the possibility of people gathering exists, people are guided to be dispersed by adjusting the content played by the screen, so that the occurrence of gathering condition is reduced.
Drawings
Fig. 1 is a flowchart of a control method in an embodiment of the present application.
Fig. 2 is a specific flowchart of step S300 in the embodiment of the present application.
Fig. 3 is a specific flowchart of step S400 in the embodiment of the present application.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1-3.
The application discloses a screen real-time control method based on personnel aggregation conditions. The method is not limited to controlling a single screen, and can have a more effective effect on controlling between a plurality of screens that are close in distance. In the case of executing the personnel aggregation and screen control method related to the plurality of screens, the main body of execution may be a local server or a platform, and is not limited to the above. When the execution subject is a platform, the platform can control the corresponding screen by the method as long as the collection device for collecting the people gathering condition and the background for determining the screen play content are connected to the platform.
Specifically, referring to fig. 1, a screen real-time control method based on personnel aggregation condition includes the following steps:
s100, periodically acquiring scene images of a viewing area corresponding to a screen to be controlled by taking a preset interval as a period.
The preset intervals are multiple, and the preset interval can be determined according to the time period of the current time, for example, the time interval adopted in the daytime is one hour, and the time interval adopted in the evening is one half hour. Similarly, different preset intervals may be adopted according to seasons, whether they belong to a working day, and the like.
The scene image is captured against the viewing area by a camera mounted near the screen. I.e. the acquisition device is a camera.
The viewing area refers to an area in front of the screen, and of course, it is difficult for some cameras for capturing images of the scene to obtain a wide enough view angle during capturing, and the viewing area is often replaced by an area that can be captured by the camera.
S200, performing image recognition on the scene image to obtain the estimated number of people.
Because the scene image may be captured at night, and the light in the viewing area often cannot be covered completely, so that a shadow-heavy part appears in the scene image, the part which cannot be clearly identified by the software can be deduced by the number of people identified in other parts, and finally, the number of people obtained is estimated to a certain extent, so that the estimated number of people can be obtained.
S300, judging whether the estimated number of people exceeds a preset warning value.
The preset warning value is set manually, and the sizes of the viewing areas corresponding to different screens are different, so that the corresponding numerical values of the preset warning values are different. The larger the viewing area, the higher the theoretical preset alert value.
And S400, if the estimated number of people exceeds a preset warning value, defining a corresponding observation area as a warning area, and determining a search range according to the warning area.
The search range is a range for searching whether or not other viewing areas can share the stream of people of the current viewing area.
However, this is not to say that the search range must include at least one other viewing area.
This is because the search range is actually a circular area formed by taking the guard area as the center and taking the preset length as the radius, if the screen is densely distributed, a plurality of other viewing areas may exist in the search range at the same time, and if the screen is sparsely distributed, no other viewing area may exist in the search range.
Of course, once there may be no other viewing area within the search range, it is not necessary to perform step S500. In the present embodiment, at least one other viewing area exists in the search range.
S500, judging whether a monitoring area with the corresponding estimated number of people being lower than or equal to a preset warning value exists in the searching range.
And S600, if a corresponding monitoring area with the estimated number of people lower than or equal to a preset warning value exists in the search range, taking the monitoring area with the estimated number of people lower than or equal to the preset warning value as a shunting area, and generating shunting information according to the shunting area and the warning area.
And if a corresponding monitoring area with the estimated number of people lower than or equal to the preset warning value exists in the search range, the monitoring area is a diversion target of the current warning area.
If a plurality of diversion areas exist, corresponding diversion information is generated respectively.
The split information includes screen information corresponding to the split area and pointing information. The screen information refers to the program content that is or will be played by the current screen. The pointing information refers to a direction from the guard zone to the corresponding split zone, and includes left, right, forward, and backward.
And S700, displaying the diversion information into a screen to be controlled corresponding to the warning area so as to remind people in the warning area of diversion.
And displaying the shunt information into a screen to be controlled corresponding to the warning area, wherein the content of the shunt information is displayed at the top or the edge position of the side edge of the screen. The display of the shunt information is not continuous all the time, but the preset playing time exists, and after the display time reaches the preset playing time, the shunt information is cancelled. The preset playing time is less than or equal to 1/3 of the preset interval, so as to avoid outdated program content conveyed by the shunt information as much as possible. If a plurality of pieces of shunt information exist, the plurality of pieces of shunt information are played in turn until the preset playing time is over.
People in the alert area can not directly feel that the current diversion information displayed by the screen is for evacuating people on the body feeling, but can feel that the people push programs, and can go to the corresponding diversion area according to own interests, so that the people can watch the screen as much as possible.
In the judgment of step S300, the situation that the estimated number of people does not exceed the preset warning value also occurs, which means that the number of people in the monitored viewing area is small at this time, and the current can not be split into other areas. However, the split flow indirectly achieves the purpose of reducing the aggregation of people by reducing the number of people in the viewing area, and the small number of people in one viewing area does not necessarily mean that the people are not aggregated, and the situation that people in the viewing area are piled up exists, so that the people in the viewing area are controlled to be at a preset warning value, and then the piling up of the people is monitored.
Specifically, if the estimated number of people is lower than or equal to the preset alert value, referring to fig. 2, the following steps are executed:
s310, counting according to the aggregation condition of the identified personnel in the scene image to obtain a plurality of aggregation values.
Each aggregation value corresponds to an aggregated crowd, and the aggregation value refers to the number of the corresponding crowd.
According to the aggregation situation of the people identified in the scene image, namely, all people in the scene image are divided into a plurality of people according to the intervals of the people, and only one person can be included in the people.
S320, selecting an aggregation value with the largest numerical value as a comparison value, and judging whether the comparison value exceeds a preset rated value.
The comparison value is the aggregation value with the largest numerical value selected from a plurality of aggregation values, and when judging whether people are aggregated too much, the comparison value only needs to select the largest number of people without comparing all people.
The preset rating is then the upper limit value specified locally for the population concentration.
S330, if the comparison value exceeds the preset rated value, controlling the corresponding screen to additionally display preset prompt information so as to prompt personnel to reduce aggregation.
The prompt message includes a background color and a prompt word, which does not contain any other screen information and corresponding pointing information. The background color is selected from a striking solid color, such as blue, green, etc., and the cue words are propaganda reducing aggregate propaganda.
The additional display of the preset prompting information means that the edge area of the screen is covered with the background color, then the prompting words are displayed in the area where the background color is located, and if the number of words of the prompting words exceeds the display upper limit of the edge area of the screen, a rolling mode can be adopted. The screen still continues to play the current content, but the playing content receives a small amount of shielding of the prompt information.
And if the comparison value is lower than or equal to the preset rated value, the operation is not performed.
When the corresponding monitoring area with the estimated number of people being lower than or equal to the preset warning value exists in the searching range, the number of people in the warning area needs to be slowed down by using a shunting method, and shunting information is displayed in a screen, so that people in the warning area need to watch the screen first to find the shunting information. It will be appreciated that the more people viewing the screen, the better the splitting effect will be if splitting information is displayed in the screen. Therefore, it is necessary to judge whether a sufficient number of people watch the screen before the shunt information is displayed.
Specifically, before the search range is generated according to the alert area, referring to fig. 3, the method includes the following steps:
s410, determining the viewing rate corresponding to the current warning area according to the scene image.
The watching rate is characterized by the ratio of the number of people facing the screen in the face of the corresponding warning area to the estimated number of people. It can be seen that in order to obtain the viewing rate, in addition to the known estimated number of people, the number of people whose faces face the screen in the alert area needs to be determined by the scene image. As for the manner of determining the number of people facing the screen in the guard area through the scene image, the image recognition is adopted, and only the recognition standard sets the specific face orientation, and the face orientation is determined by the position of the camera and the position of the screen.
S420, judging whether the viewing rate corresponding to the current warning area exceeds a preset ratio.
The preset ratio is set by the staff and is typically set to 50%.
It should be noted that the preset ratio is not fixed after the worker is set, but is automatically adjusted to a certain adaptability according to the number of people in the alert area. This is because if the number of persons in the alert area is excessive, even if not more than half of the persons are watching the screen, there are still enough persons watching the screen, and the diversion information is displayed directly on the screen or received by enough persons, so that a certain diversion effect can be achieved. That is, when the number of people in the alert area is greater, the preset ratio is adjusted downward accordingly. For example, when the number of persons in the guard area is in the range of 0 to 500, the preset ratio is 50%; when the number of persons in the alert zone rises to 500-800, the preset ratio drops to 40%.
S430, if the viewing rate corresponding to the current warning area exceeds the preset ratio, generating a search range according to the warning area.
When the viewing rate corresponding to the alert area exceeds the preset ratio, a search range is generated according to the alert area, and the subsequent step S500 is normally executed.
S440, if the viewing rate corresponding to the current warning area is lower than or equal to the preset ratio, controlling the corresponding screen to pause playing the current content and displaying preset prompt information to prompt personnel to reduce aggregation.
In step S330, the prompt message is additionally displayed on the basis of the current content played on the screen, and in this step, the preset prompt message is displayed after the current content is paused on the screen, the color of the light emitted by the screen is greatly changed, and the prompt word is more striking, so that people who do not face the screen are attracted, more people can notice the prompt word displayed on the screen, and the aggregation of people is reduced.
In addition, if no monitoring area with the corresponding estimated number of people lower than or equal to the preset warning value exists in the searching range, the method comprises the following steps:
s610, obtaining the content to be played of the corresponding screen in a preset time.
The content to be played comprises advertisements and programs, and the preset time is smaller than or equal to a preset interval.
S620, adjusting the content to be played in a mode of increasing the advertisement duration and reducing the program duration.
For a person viewing a screen, advertisements may decrease the viewing interest of the person, while programs may be more attractive to view, and by increasing the length of the advertisements and decreasing the length of the programs, the residence of the person in the alert zone may be reduced.
In one embodiment, obtaining content to be played of a corresponding screen within a preset time includes the following steps:
s611, acquiring a history playing mark corresponding to the warning area, and judging whether the history playing mark is normal.
The history playing mark is used for representing the state of the played content of the screen in the last preset interval, and has two states of normal and abnormal, wherein the abnormal state indicates that the content played in the last preset interval is not played according to the preset sequence. The normal state, which is only another state set for distinguishing the abnormal state, does not indicate that the screen is the content played in the preset order in the last preset interval.
S612, if the historical playing mark is normal, modifying the historical playing mark into abnormal, and acquiring the content to be played of the corresponding screen within the preset time.
After obtaining the content to be played in the preset time of the corresponding screen, the content to be played is adjusted in a mode of increasing the advertisement time and reducing the program time, namely, the content played in the next preset interval is not the content played in the preset sequence, so that the history playing mark needs to be modified into abnormal in advance.
S613, if the history playing mark is not normal, modifying the history playing mark to be normal, controlling the corresponding screen to pause playing the current content and displaying preset prompt information to prompt personnel to reduce aggregation.
After the interest of people is indirectly reduced by adding advertisements, the aim of promoting people to evacuate is not achieved, and the more direct way of playing content and displaying prompt information is achieved.
Note that, the history play flag may be modified to be abnormal while the shunt information is displayed on the screen in step S700. The aim is to prevent that when the current diversion effect is poor and the diversion area is not available, the step S613 can be directly executed to directly prompt people to evacuate, and the action of reducing people aggregation is not needed to be indirectly performed, so that the aim of evacuating people can be achieved more quickly.
In one embodiment, adjusting the content to be played in a manner that increases the advertisement duration and decreases the program duration includes the steps of:
s621, screening reserved programs from programs of the content to be played, and sorting the reserved programs to form a program set.
The reserved program is a program whose play time is as small as possible.
The ordering is arranged in order to preserve the order in which the programs are played in the content to be played.
S622, sequentially splitting reserved programs in the program set to form minimum program segments, wherein the duration of each minimum program segment is smaller than or equal to the preset duration.
The preset time period is set manually, and is typically several minutes.
The method for splitting the reserved programs is to divide the program duration of the reserved programs by the preset duration, round up the obtained quotient to be used as the number of fragments, and divide the program duration by the number of fragments again, so that the duration of the minimum program fragment is obtained.
And S623, inserting advertisements between the adjacent minimum program fragments to form new content to be played.
In one embodiment, the screening of reserved programs from programs of content to be played includes the steps of:
s6211, sorting programs in the content to be played according to the corresponding program time length from small to large to form a time length queue.
S6212, sequentially accumulating the program time lengths in the time length queues in a front-to-back order to generate a total program time length until the total program time length exceeds a preset program estimated time length, and taking a program corresponding to the total program time length as a reserved program.
The program estimated time length is in direct proportion to the preset time, and specifically, the program preset time length is K times of the preset time, wherein K is not more than 0.5.
The program time length is normally smaller the more in front of the time length queue formed in step S6211.
In one embodiment, advertisements are inserted between adjacent minimum program segments to form new content to be played, comprising the steps of:
s6231, calculating the estimated total advertisement duration according to the total program duration and the preset time.
The estimated total advertisement duration is obtained by subtracting the total program duration from the preset time.
S6232, determining the advertisement quantity according to the minimum program segment number.
The number of advertisements is the number of minimum program segments minus one.
S6233, determining a single estimated time length according to the estimated total time length of the advertisements and the advertisement quantity.
The single estimated time length is the quotient obtained by dividing the estimated total time length of the advertisements by the advertisement quantity.
S6234, generating an estimated duration range according to the single estimated duration.
And forming an upper limit value and a lower limit value through a single estimated duration, wherein a range between the lower limit value and the upper limit value is the range of the estimated duration. The upper limit value is a single estimated time length plus a preset fixed time length, and the lower limit value is a single estimated time length minus a preset fixed time length. The preset fixed duration is typically several tens of seconds.
S6235, selecting advertisements with the corresponding advertisement duration meeting the estimated duration range from preset advertisements as advertisements to be inserted, wherein the number of the advertisements to be inserted is the same as the determined number of the advertisements.
In one embodiment, before sequentially accumulating the program durations in the queue to generate the total program duration, the method comprises the following steps:
and acquiring the current playing content, and determining the residual duration of the current playing content through the content to be played.
And judging whether the residual time length exceeds the time length corresponding to the minimum program segment.
If the remaining time length exceeds the time length corresponding to the minimum program segment, the remaining time length is stored in the first position of the time length queue, and the remaining program time length is sequentially and backwardly extended.
If the remaining time period does not exceed the time period corresponding to the minimum program segment, step S6212 is normally executed.
The embodiment of the application also provides a computer readable storage medium, which stores a computer program capable of being loaded by a processor and executing any one of the screen real-time control methods based on the people gathering condition.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The screen real-time control method based on the personnel gathering condition is characterized by comprising the following steps of:
periodically acquiring scene images of a viewing area corresponding to a screen to be controlled by taking preset intervals as a period;
performing image recognition on the scene image to obtain the estimated number of people;
judging whether the estimated number of people exceeds a preset warning value,
if the estimated number of people exceeds a preset warning value, defining a corresponding observation area as a warning area, and determining a retrieval range according to the warning area;
judging whether a monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range,
if the information exists, taking a monitoring area with the estimated number of people being lower than or equal to a preset warning value as a shunting area, and generating shunting information according to the shunting area and the warning area;
and displaying the diversion information into a screen to be controlled corresponding to the warning area so as to remind people in the warning area of diversion.
2. The method for controlling the screen in real time based on the people gathering situation according to claim 1, wherein before the search range is generated according to the alert area, the method comprises the following steps:
determining the corresponding viewing rate of the current warning area according to the scene image, wherein the viewing rate is characterized by the ratio of the number of people facing the screen in the face of the corresponding warning area to the estimated number of people;
judging whether the viewing rate corresponding to the current warning area exceeds a preset ratio,
if yes, generating a search range according to the warning area;
if not, controlling the corresponding screen to pause playing the current content and displaying preset prompt information to prompt personnel to reduce aggregation.
3. The method for controlling a screen in real time based on the condition of people gathering according to claim 1, further comprising the steps of: if the estimated number of people is lower than or equal to a preset warning value, counting according to the aggregation condition of the people identified in the scene image to obtain a plurality of aggregation values, selecting the aggregation value with the largest value as a comparison value, judging whether the comparison value exceeds a preset rated value, and if so, controlling a corresponding screen to additionally display preset prompt information to prompt the people to reduce aggregation.
4. The method for controlling a screen in real time based on the condition of people gathering according to claim 1, further comprising the steps of: if no monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range, acquiring the content to be played of the corresponding screen within a preset time, wherein the content to be played comprises advertisements and programs, and the preset time is smaller than or equal to a preset interval;
the content to be played is adjusted in a manner of increasing the advertisement duration and decreasing the program duration.
5. The method for controlling the screen in real time based on the people gathering situation according to claim 4, wherein: if no monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range, acquiring the content to be played of the corresponding screen in the preset time, wherein the method comprises the following steps:
if no monitoring area with the corresponding estimated number of people lower than or equal to a preset warning value exists in the searching range, acquiring a history playing mark corresponding to the warning area, judging whether the history playing mark is normal or not, if so, modifying the history playing mark into abnormal, and acquiring the content to be played of the corresponding screen in preset time;
if not, modifying the historical playing mark to be normal, controlling the corresponding screen to pause playing the current content and displaying preset prompt information to prompt personnel to reduce aggregation.
6. The method for controlling the screen in real time based on the people gathering situation according to claim 4, wherein: the method for adjusting the content to be played in a mode of increasing the advertisement duration and reducing the program duration comprises the following steps:
screening reserved programs from programs of the content to be played, and sorting the reserved programs to form a program set;
sequentially splitting reserved programs in a program set to form minimum program fragments, wherein the duration of each minimum program fragment is smaller than or equal to the preset duration;
advertisements are inserted between adjacent minimum program segments to form new content to be played.
7. The method for controlling the screen in real time based on the people gathering situation according to claim 6, wherein: the method for screening reserved programs from programs of contents to be played comprises the following steps:
the programs in the content to be played are sequenced from small to large according to the corresponding program time length to form a time length queue,
sequentially accumulating the program time lengths in the time length queues from front to back to generate a total program time length until the total program time length exceeds a preset program estimated time length, and taking a program corresponding to the total program time length as a reserved program.
8. The method for controlling the screen in real time based on the people gathering situation according to claim 7, wherein: advertisements are inserted between the adjacent minimum program segments to form new content to be played, and the method comprises the following steps:
calculating the estimated total advertisement time according to the total program time and the preset time;
determining the advertisement quantity according to the minimum program fragment number;
determining a single estimated time length according to the estimated total time length of the advertisements and the advertisement quantity,
generating a predicted duration range according to the single predicted duration;
and screening advertisements with the corresponding advertisement duration meeting the estimated duration range from preset advertisements to serve as advertisements to be inserted, wherein the number of the advertisements to be inserted is the same as the determined number of the advertisements.
9. The method for controlling the screen in real time based on the people gathering situation according to claim 7, wherein: before the program time lengths in the time length queues are sequentially accumulated in a front-to-back order to generate the total time length of the program, the method comprises the following steps:
acquiring current playing content, and determining the residual duration of the current playing content through the content to be played;
judging whether the residual time length exceeds the time length corresponding to the minimum program segment,
if yes, the remaining time length is stored in the first position of the time length queue, and the remaining program time length is sequentially and backwardly extended.
10. A computer-readable storage medium, characterized in that a computer program is stored which can be loaded by a processor and which performs a method for controlling the real-time screen based on the situation of people gathering as claimed in any one of claims 1 to 9.
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