CN115294925A - LED display screen control system for privacy protection according to environment detection - Google Patents
LED display screen control system for privacy protection according to environment detection Download PDFInfo
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- 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]
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Abstract
The invention relates to the technical field of LED display screen control, in particular to an LED display screen control system for privacy protection according to environment detection. The device comprises a display screen angle measuring unit, a visual angle determining unit and a visual distance determining unit. According to the invention, an included angle formed by the display screen and the installation position is measured by the display screen angle measuring unit, then the visible angle range and the visible distance range are judged according to the visible angle determining unit and the visible distance determining unit, then the visible area capable of observing the content displayed by the display screen is calculated according to the visible area calculating unit, when an irrelevant person is in the visible area, the person can be judged to observe the content displayed by the display screen, and the display screen is closed by the display screen responding unit in time, so that the irrelevant person is prevented from peeping the display information of the display screen to cause information leakage.
Description
Technical Field
The invention relates to the technical field of LED display screen control, in particular to an LED display screen control system for privacy protection according to environment detection.
Background
The LED display screen is a flat panel display, it is made up of LED module panel of one by one, the apparatus used for displaying various information such as characters, picture, video, etc., the LED electronic display screen collects microelectronic technology, computer technology, information processing in an organic whole, have bright in color, the dynamic range is wide, the luminance is high, longe-lived, advantages such as the job stabilization is reliable, the LED display screen is applied to the commercial media extensively, the cultural performance market, stadium, information transmission, news issue, stock exchange, etc., can meet the needs of different environments.
The information displayed by the LED display screen generally only needs to observe the projected information in the visible area, and for some information related to confidentiality, a user often needs to investigate the surrounding environment in the process of observing the information by himself, and determine whether there are irrelevant people in the visible area, but because of the principle of refraction of light, the irrelevant people can observe the information of the display screen from multiple angles, and only the user cannot accurately determine that the area is the visible area, meanwhile, the angle formed by the display screen and the installation position directly affects the visible area of the display screen, and after the user changes the angle formed by the display screen and the installation position, the originally determined visible area range can be changed accordingly, so that the user needs to perform secondary determination, and therefore, an LED display screen control system for privacy protection according to environmental detection is needed urgently.
Disclosure of Invention
The invention aims to provide an LED display screen control system for privacy protection according to environment detection, so as to solve the problems in the background technology.
In order to achieve the purpose, the LED display screen control system for privacy protection according to environment detection is provided, and comprises a camera monitoring unit, a visible area calculating unit and a display screen responding unit, wherein the camera monitoring unit is used for monitoring and processing the area around the display screen to generate monitoring information, and the control system judges an included angle formed by the display screen and an installation position according to the monitoring information and determines and identifies irrelevant personnel; the visual area calculating unit calculates a visual area in which irrelevant people can observe the content displayed on the display screen according to the included angle and the monitoring information; the control system selectively instructs the display screen response unit to turn off the display screen based on the results of the available regions.
As a further improvement of this technical solution, the output end of the camera monitoring unit is connected with a display screen angle measuring unit, the display screen angle measuring unit measures an included angle formed by the display screen and the installation position by combining with monitoring information, the output end of the display screen angle measuring unit is connected with a visual angle determining unit, the input end of the visual angle determining unit is connected with the output end of the camera monitoring unit, the visual angle determining unit is used for determining the content displayed by the display screen that can be observed at those angles by irrelevant people and determining the visual angle range, the output end of the display screen angle measuring unit is further connected with a visual distance determining unit, the input end of the visual distance determining unit is connected with the output end of the camera monitoring unit, the visual distance determining unit is used for determining the distance between the irrelevant people and the display screen and determining the visual distance range, the visual distance determining unit is connected with a visual area calculating unit, the input end of the visual area calculating unit is connected with the output end of the visual angle determining unit, the visual area calculating unit is connected with the visual area calculating unit, the output end of the visual area calculating unit is connected with the visual angle range calculating unit and the visual area calculating unit, the output end of the visual area calculating unit is connected with the visual area judging unit, the output end of the visual area judging unit, the visual area judging unit is connected with the output end of the visual area judging unit, and the visual area judging unit, the output end of the visual area judging unit, the visual area judging unit is connected with the visual area judging unit.
As a further improvement of the technical scheme, the display screen angle measuring unit comprises a detection point determining module, the detection point determining module is used for determining a detection point which can be projected by the display screen, the output end of the detection point determining module is connected with a detection point distance calculating module, and the output end of the detection point distance calculating module is connected with a display screen angle calculating module.
As a further improvement of the technical scheme, the angle measurement unit of the display screen adopts an angle measurement algorithm, and the algorithm formula is as follows:
L＝V 0 T 1 ；d＝V 0 T 2 ；
wherein, oc is the angle formed by the display screen and the mounting position, and L is the detectionThe linear distance from the point to the camera, d is the linear distance from the camera to the display screen, V 0 Is the speed of light, is a known value, T 1 Time taken to detect point to camera, T 2 The time it takes for the camera to reach the display screen.
As a further improvement of the technical solution, the visible area calculating unit includes an angle difference calculating module, the angle difference calculating module is configured to determine a maximum visible angle and a minimum visible angle, and calculate a difference between the maximum visible angle and the minimum visible angle, an output end of the angle difference calculating module is connected to a visible radius determining module, and an output end of the visible radius determining module is connected to a final area calculating module.
As a further improvement of the technical solution, the visible area calculating unit adopts a visible area calculating algorithm, and an algorithm formula thereof is as follows:
wherein R is 1 Is the radius of the sphere formed at the farthest distance, V 1 Volume of sphere formed at the farthest distance, R 2 Radius of sphere formed at the closest distance, V 2 For the volume of the sphere formed at the closest distance, θ 1 At the maximum angle of visibility, θ 2 In order to minimize the angle of view,
v is the visible region occupancy rate and V is the visible region volume.
As a further improvement of the technical scheme, the output end of the camera monitoring unit is connected with a visual route judgment unit, and the visual route judgment unit is used for determining the routes around the display screen and judging the probability of different routes entering the visual area according to the number of people arriving at the visual area along different routes.
As the further improvement of this technical scheme, visual route judgement unit includes route passing rate judging module, route passing rate judging module confirms the number of people that reach visual zone through different routes in the same time, route passing rate judging module output is connected with suspicious route and confirms the module, suspicious route confirms the module and is used for sequencing different routes, formulates the number threshold value, will exceed the route sign of number threshold value for suspicious route.
As a further improvement of the technical scheme, the output end of the suspicious route determining module is connected with a route data real-time updating module, and the route data real-time updating module judges different suspicious routes according to different times and updates suspicious route information in real time.
As a further improvement of the technical scheme, the output end of the visual route judgment unit is connected with a visual personnel prediction unit, and the output end of the visual personnel prediction unit is connected with the visual area personnel judgment unit.
Compared with the prior art, the invention has the beneficial effects that:
1. in this LED display screen control system who carries out privacy protection according to environmental detection, measure the contained angle that display screen and mounted position formed through display screen angle measuring unit, then judge visual angle scope and visual distance scope according to visual angle determining unit and visual distance determining unit, calculate the visual area that can observe the content that the display screen shows according to visual area computational element afterwards, in this visual area of irrelevant personnel, judge that this personnel can observe the content that the display screen shows promptly, even close the display screen through display screen response unit, prevent that irrelevant personnel from peeping display screen display information, cause the information leakage.
2. In the LED display screen control system for privacy protection according to environment detection, a detection point determining module determines a detection point where a display screen can project, a camera angle is adjusted to be perpendicular to the detection point and projects a light source to the detection point, a detection point distance calculating module calculates a linear distance from the detection point to the camera according to time spent by the detection point for reflecting the light source, the camera angle is adjusted to be parallel to the detection point and projects the light source to the display screen, time spent by the display screen for reflecting the light source is obtained, the linear distance from the camera to the display screen is calculated, and finally, a display screen angle calculating module calculates an included angle formed by the display screen and an installation position according to the Pythagorean theorem.
3. In the LED display screen control system for privacy protection according to environment detection, an angle difference calculation module determines the maximum visible angle and the minimum visible angle, calculates the difference between the maximum visible angle and the minimum visible angle, judges the proportion of the volume of a sphere formed by the display screen occupied by the visible area and the farthest visible distance, a visible radius determination module determines the farthest visible distance and the nearest visible distance of the display screen, and a final area calculation module calculates the final visible area according to the angle difference calculation module and the visible radius determination module.
4. In this LED display screen control system who carries out privacy protection according to environment detection, confirm the route around the display screen through visual route judgement unit to according to the number of arriving visual zone along different routes, judge the probability that different routes got into visual zone, when irrelevant personnel pass through the higher route of probability, visual route judgement unit makes the prediction in advance, in time closes the display screen, reduces system response time, improves response efficiency.
Drawings
FIG. 1 is an overall flow diagram of the present invention;
FIG. 2 is a flow chart of a display screen angle measurement unit of the present invention;
FIG. 3 is a flow chart of a visible region calculating unit according to the present invention;
fig. 4 is a flowchart of a visual route determining unit according to the present invention.
The various reference numbers in the figures mean:
10. a camera monitoring unit;
20. a display screen angle measuring unit; 210. a detection point determination module; 220. a detection point distance calculation module; 230. a display screen angle calculation module;
30. a visible angle determining unit;
40. a visible distance determination unit;
50. a visible region calculation unit; 510. an angle difference calculation module; 520. a visible radius determination module; 530. a final region calculation module;
60. a visual area personnel judgment unit;
70. a display screen response unit;
80. a visible route judging unit; 810. a route passing rate judging module; 820. a suspicious route determination module; 830. a route data real-time updating module;
90. a visual people prediction unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, an LED display screen control system for privacy protection according to environment detection is provided, which includes a camera monitoring unit 10, a visible area calculating unit 50, and a display screen responding unit 70, where the camera monitoring unit 10 is configured to monitor and process an area around a display screen to generate monitoring information, and the control system determines an included angle formed between the display screen and an installation location according to the monitoring information and determines to identify an unrelated person; the visible area calculating unit 50 calculates a visible area in which the content displayed on the display screen can be observed by irrelevant people according to the included angle and the monitoring information; the control system selectively instructs the display response unit 70 to turn off the display depending on the results of the available zones.
The identification of the unrelated person is confirmed as: discharging related personnel according to the maximum outline information and the gesture instructions of the personnel; that is, when the maximum contour of the passing irrelevant person is matched with the user, but no gesture command is received or the gesture command is incorrect, the person is judged to be the irrelevant person.
Specifically, the output end of the camera monitoring unit 10 is connected with a display screen angle measuring unit 20, the display screen angle measuring unit 20 combines monitoring information to measure an included angle formed between a display screen and an installation position, the output end of the display screen angle measuring unit 20 is connected with a visual angle determining unit 30, the input end of the visual angle determining unit 30 is connected with the output end of the camera monitoring unit 10, the visual angle determining unit 30 is used for determining the content displayed by the display screen at the angle of an irrelevant person and determining a visual angle range, the output end of the display screen angle measuring unit 20 is further connected with a visual distance determining unit 40, the input end of the visual distance determining unit 40 is connected with the output end of the camera monitoring unit 10, the visual distance determining unit 40 is used for determining the distance between the irrelevant person and the display screen and determining a visual distance range, the visual distance range is determined, the output end of the visual distance determining unit 40 is connected with a visual area calculating unit 50, the input end of the visual area calculating unit 50 is connected with the output end of the visual angle determining unit 30, the visual area calculating unit 50 is connected with a visual area calculating unit 60, the visual area calculating unit 50 is connected with a visual area judging unit 60, and a visual area judging unit 70 is connected with a visual area judging unit 60.
When the device is used, the camera monitoring unit 10 monitors by using a camera, the camera is arranged on the back of the display screen, the camera monitoring unit 10 monitors the area around the display screen to generate monitoring information and transmits the monitoring information to the display screen angle measuring unit 20, the display screen angle measuring unit 20 measures the included angle formed by the display screen and the installation position by combining the monitoring information, so that different visual areas of the display screen can be determined according to different included angles at a later period to generate display screen measuring information, the display screen measuring information is transmitted to the visual angle determining unit 30, the visual angle determining unit 30 combines the display screen measuring information and the monitoring information to determine which angles the irrelevant person is in to observe the content displayed by the display screen, judge the visual angle range, generate visual angle range information, and transmit the visual angle range information to the visual area calculating unit 50, meanwhile, the display screen angle measuring unit 20 transmits the display screen measuring information to the visual distance determining unit 40, the visual distance determining unit 40 combines the display screen measuring information and the monitoring information to determine the distance between the irrelevant person and the display screen and judge the visual distance range to generate the visual distance range information and transmit the visual distance range information to the visual area calculating unit 50, the visual area calculating unit 50 combines the visual angle range and the visual distance range to calculate the visual area capable of observing the content displayed on the display screen, when the visual area has the person, the person can observe the content displayed on the display screen at the position, the visual area calculating unit 50 generates the visual area information and transmits the visual area information to the visual area person judging unit 60, the visual area person judging unit 60 combines the visual area information, and whether irrelevant persons exist in the visual area is judged through the monitoring information provided by the camera monitoring unit 10, when the irrelevant persons exist, the visual area person judging unit 60 generates irrelevant person detection information and transmits the irrelevant person detection information to the display screen responding unit 70, in the invention, an included angle formed by the display screen and the installation position is measured through the display screen angle measuring unit 20, then the visual angle range and the visual distance range are judged according to the visual angle determining unit 30 and the visual distance determining unit 40, then the visual area capable of observing the content displayed by the display screen is calculated according to the visual area calculating unit 50, when the irrelevant persons exist in the visual area, the person is judged to be capable of observing the content displayed by the display screen, even if the display screen is closed through the display screen responding unit 70, the irrelevant persons are prevented from peeping the display information of the display screen to cause information leakage.
In addition, the display screen angle measuring unit 20 includes a detection point determining module 210, the detection point determining module 210 is configured to determine a detection point where the display screen can project, the output end of the detection point determining module 210 is connected to a detection point distance calculating module 220, and the output end of the detection point distance calculating module 220 is connected to a display screen angle calculating module 230. When the device is used specifically, the detection point determining module 210 determines the detection point where the display screen can project, the camera angle is adjusted to be perpendicular to the detection point, the light source is projected to the detection point, then the detection point distance calculating module 220 calculates the linear distance from the detection point to the camera according to the time spent by the detection point for reflecting the light source, then the camera angle is adjusted to be parallel to the detection point, the light source is projected to the display screen, the time spent by the display screen for reflecting the light source is obtained, the linear distance from the camera to the display screen is calculated, and finally the display screen angle calculating module 230 calculates the included angle formed by the display screen and the installation position according to the pythagorean theorem.
Further, the display screen angle measuring unit 20 adopts an angle measuring algorithm, and the algorithm formula is as follows:
L＝V 0 T 1 ；d＝V 0 T 2 ；
wherein, the angle is formed by the display screen and the installation position, L is the linear distance from the detection point to the camera, d is the linear distance from the camera to the display screen, and V 0 Is the speed of light, is a known value, T 1 Time taken to detect point to camera, T 2 The time it takes for the camera to reach the display screen.
Still further, the visible area calculating unit 50 includes an angle difference calculating module 510, the angle difference calculating module 510 is configured to determine a maximum visible angle and a minimum visible angle, and calculate a difference between the maximum visible angle and the minimum visible angle, an output end of the angle difference calculating module 510 is connected to a visible radius determining module 520, and an output end of the visible radius determining module 520 is connected to a final area calculating module 530. The angle difference calculating module 510 determines the maximum visible angle and the minimum visible angle, calculates the difference between the maximum visible angle and the minimum visible angle, and determines the ratio of the display screen occupied by the visible area to the sphere volume formed by the farthest visible distance, the visible radius determining module 520 determines the farthest visible distance and the closest visible distance of the display screen, and the final area calculating module 530 calculates the final visible area according to the angle difference calculating module 510 and the visible radius determining module 520.
Specifically, the visible region calculating unit 50 adopts a visible region calculating algorithm, and an algorithm formula thereof is as follows:
wherein R is 1 Radius of sphere formed at the farthest distance, V 1 For the volume of the sphere formed at the furthest distance, R 2 Radius of sphere formed at the closest distance, V 2 For the volume of the sphere formed at the closest distance, θ 1 At the maximum angle of visibility, θ 2 In order to be the smallest angle of view,
v is the visible region occupancy ratio and V is the visible region volume.
In addition, the output end of the camera monitoring unit 10 is connected with a visual route judging unit 80, and the visual route judging unit 80 is used for determining the route around the display screen and judging the probability of different routes entering the visual area according to the number of people arriving at the visual area along different routes. When the display screen is used specifically, certain response time needs to be passed in the process of judging irrelevant people in a visible area, in the response process, irrelevant people can peep the display screen information by using the response time or cause the display screen information to be leaked, at the moment, routes around the display screen are determined by the visible route judging unit 80, the probability that different routes enter the visible area is judged according to the number of people arriving at the visible area along different routes, when the irrelevant people pass through the routes with higher probability, the visible route judging unit 80 predicts in advance and closes the display screen in time, the system response time is shortened, and the response efficiency is improved.
Further, the visual route determining unit 80 includes a route passing rate determining module 810, the route passing rate determining module 810 determines the number of people passing through different routes and reaching the visual area within the same time, the output end of the route passing rate determining module 810 is connected with a suspicious route determining module 820, the suspicious route determining module 820 is used for sorting different routes, making a number threshold value, and identifying the routes exceeding the number threshold value as suspicious routes. When the route passing rate judging module 810 is used specifically, the number of people passing through different routes to reach a visual area is determined within the same time, route passing number information is generated, the route passing number information is transmitted to the suspicious route determining module 820, the suspicious route determining module 820 sequences different routes according to the route passing number information, the number threshold value is set, the routes exceeding the number threshold value are marked as suspicious routes, in the later monitoring process, when irrelevant people appear on the suspicious routes, and the probability that the people will arrive at the visual area finally is judged, the display screen is closed immediately, the response efficiency is improved in one stroke, and the leakage of information on the display screen is reduced.
Still further, the output end of the suspicious route determining module 820 is connected to a route data real-time updating module 830, and the route data real-time updating module 830 determines different suspicious routes according to different times and updates suspicious route information in real time. When the system is used specifically, due to the fact that the personnel reaching the visual area through different routes are different in different time states, suspicious route data are changed constantly, if real-time updating is not conducted, the system can easily make misjudgment, different suspicious routes are judged according to different times through the route data real-time updating module 830, suspicious route information is updated in real time, the system is helped to make adjustment in time, and system response accuracy is improved.
In addition, the output end of the visual route determining unit 80 is connected to a visual person predicting unit 90, and the output end of the visual person predicting unit 90 is connected to the visual area person determining unit 60. When the system is used specifically, the visual route judging unit 80 judges the probability of different routes entering a visual area, generates visual probability information of different routes, transmits the visual probability information of different routes to the visual staff predicting unit 90, the visual staff predicting unit 90 determines the probability that irrelevant staff may appear on different routes at different time points, sets a probability threshold value, marks the time points exceeding the probability threshold value, and automatically closes the display screen when the time points of the marks are reached, so that the display screen is prevented from being used at the time points of high peeping.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. According to environment detection, carry out privacy protection's LED display screen control system, its characterized in that: the system comprises a camera monitoring unit (10), a visible area calculating unit (50) and a display screen responding unit (70), wherein the camera monitoring unit (10) is used for monitoring and processing the area around the display screen to generate monitoring information; the control system judges an included angle formed by the display screen and the installation position according to the monitoring information and determines and identifies irrelevant personnel; the visual area calculating unit (50) calculates a visual area in which the content displayed on the display screen can be observed by irrelevant personnel according to the included angle and the monitoring information; the control system selectively instructs the display screen response unit (70) to turn off the display screen in accordance with the results of the available zones.
2. The LED display screen control system for privacy protection based on environmental detection as claimed in claim 1 wherein: the output end of the camera monitoring unit (10) is connected with a display screen angle measuring unit (20), the display screen angle measuring unit (20) is combined with monitoring information to measure an included angle formed by a display screen and an installation position, the output end of the display screen angle measuring unit (20) is connected with a visual angle determining unit (30), the input end of the visual angle determining unit (30) is connected with the output end of the camera monitoring unit (10), the visual angle determining unit (30) is used for determining which angles at which an irrelevant person can observe the content displayed by the display screen and judging a visual angle range, the output end of the display screen angle measuring unit (20) is further connected with a visual distance determining unit (40), the input end of the visual distance determining unit (40) is connected with the output end of the camera monitoring unit (10), the visual distance determining unit (40) is used for determining the distance between the irrelevant person and the display screen and judging the visual distance range, the output end of the visual distance determining unit (40) is connected with a visual area calculating unit (50), the input end of the visual area calculating unit (50) is connected with the visual angle determining unit (30), the output end of the visual area calculating unit (60) is connected with the visual area calculating unit (50), the visual area calculating unit (60) is combined with the visual area calculating the visual area, the visual area calculating unit (50) and the visual area calculating unit (50) can calculate the visual area calculating the visual area of the visual area, the visual area calculating unit (50), the input end of the visual area personnel judging unit (60) is connected with the output end of the camera monitoring unit (10), and the output end of the visual area personnel judging unit (60) is connected with a display screen response unit (70).
3. The LED display screen control system for privacy protection based on environmental detection as claimed in claim 2 wherein: the display screen angle measuring unit (20) comprises a detection point determining module (210), the detection point determining module (210) is used for determining a detection point which can be projected by the display screen, the output end of the detection point determining module (210) is connected with a detection point distance calculating module (220), and the output end of the detection point distance calculating module (220) is connected with a display screen angle calculating module (230).
4. The LED display screen control system for privacy protection based on environmental detection as claimed in claim 3, wherein: the display screen angle measuring unit (20) adopts an angle measuring algorithm, and the algorithm formula is as follows:
L＝V 0 T 1 ；d＝V 0 T 2 ；
wherein, the angle is formed by the display screen and the installation position, L is the linear distance from the detection point to the camera, d is the linear distance from the camera to the display screen, and V 0 Is the speed of light, is a known value, T 1 Time taken to detect point to camera, T 2 The time it takes for the camera to reach the display screen.
5. The LED display screen control system for privacy protection based on environmental detection as claimed in claim 2 wherein: the visual area calculating unit (50) comprises an angle difference calculating module (510), the angle difference calculating module (510) is used for determining the maximum visual angle and the minimum visual angle and calculating the difference between the maximum visual angle and the minimum visual angle, the output end of the angle difference calculating module (510) is connected with a visual radius determining module (520), and the output end of the visual radius determining module (520) is connected with a final area calculating module (530).
6. The LED display screen control system for privacy protection based on environmental detection as recited in claim 5, wherein: the visual area calculating unit (50) adopts a visual area calculating algorithm, and the algorithm formula is as follows:
wherein R is 1 Radius of sphere formed at the farthest distance, V 1 Volume of sphere formed at the farthest distance, R 2 Radius of sphere formed at the closest distance, V 2 For the volume of the sphere formed at the closest distance, θ 1 At the maximum angle of visibility, θ 2 In order to minimize the angle of view,
v is the visible region occupancy rate and V is the visible region volume.
7. The LED display screen control system for privacy protection based on environmental detection as claimed in claim 2 wherein: the output end of the camera shooting monitoring unit (10) is connected with a visual route judging unit (80), the visual route judging unit (80) is used for determining routes around the display screen and judging the probability that different routes enter a visual area according to the number of people arriving at the visual area along different routes.
8. The LED display screen control system for privacy protection based on environmental detection as recited in claim 7, wherein: the visual route judgment unit (80) comprises a route passing rate judgment module (810), the route passing rate judgment module (810) determines the number of people passing through different routes to reach a visual area in the same time, the output end of the route passing rate judgment module (810) is connected with a suspicious route determination module (820), the suspicious route determination module (820) is used for sorting different routes, a number threshold is formulated, and the routes exceeding the number threshold are identified as suspicious routes.
9. The LED display screen control system for privacy protection based on environmental detection as recited in claim 8, wherein: the output end of the suspicious route determining module (820) is connected with a route data real-time updating module (830), and the route data real-time updating module (830) judges different suspicious routes according to different time and updates suspicious route information in real time.
10. The LED display screen control system for privacy protection based on environmental detection as recited in claim 8, wherein: the output end of the visual route judging unit (80) is connected with a visual personnel predicting unit (90), and the output end of the visual personnel predicting unit (90) is connected with the visual area personnel judging unit (60).
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Application publication date: 20221104 |