Television control system capable of remotely adjusting child safety distance

Abstract

The invention relates to the technical field of myopia prevention and control, and discloses a remotely adjustable child safety distance television control system, which comprises a multi-sensor fusion module used for detecting the distance between a child and a television in real time, and cutting off a television power supply when detecting that the distance between the child and the television is smaller than a set early warning distance; the posture recognition module indicates the child to adjust the sitting posture through voice when the posture does not meet the health standard; the eye fatigue detection module is used for judging the fatigue degree by detecting the blinking frequency and the eye closing duration of the child; the environment sensing module is used for detecting indoor light intensity and noise level; and the loudspeaking module is used for sending a prompt and an instruction to the child through voice. The watching distance, the sitting posture and the eye using state of a child are monitored in real time through the multi-sensor fusion module, the posture recognition module and the eye fatigue detection module, intervention is conducted in time, asthenopia and myopia caused by short-distance watching, poor postures and long-time eye using are avoided, and the eyesight health of the child is effectively protected.

Description

Technical Field

[0001] The invention relates to the technical field of myopia prevention and control, and in particular to a remotely adjustable children's safety distance television control system. Background Art

[0002] Television is an important tool for entertainment and information acquisition in modern families. It can not only be used to play programs and movies, but also realize online education, interactive games and multimedia presentations through networking functions. It is one of the important daily necessities in modern families.

[0003] However, when watching TV, children often stay in front of the screen for a long time due to the attractiveness of the programs and lack the necessary rest. At the same time, due to their weak self-control ability, they are prone to watching too close. This behavior will significantly increase the risk of visual fatigue and may cause vision problems such as myopia in the long run. In addition, improper ambient lighting and sitting posture will further aggravate damage to vision. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a remotely adjustable child safety distance TV control system, which solves the problem in the prior art that children are prone to lack of rest, sitting too close and sitting in an irregular posture when watching TV, thereby causing and increasing vision problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a remotely adjustable child safety distance television control system, comprising:

[0006] The multi-sensor fusion module is used to detect the distance between the child and the TV in real time. When it is detected that the distance between the child and the TV is less than the set warning distance, a prompt is triggered and the countdown module is entered. If the child has not left when the countdown ends, the TV power is cut off;

[0007] The posture recognition module captures the child's viewing posture through the camera. When the posture does not meet the health standard, it triggers a prompt and enters the countdown module. If the posture is not adjusted to a qualified state at the end of the countdown, the TV screen is cut off and the child is instructed to adjust the sitting posture through voice;

[0008] The eye fatigue detection module determines the degree of fatigue by detecting the child's blinking frequency and eye closure duration. When the fatigue degree exceeds the set threshold, a prompt is triggered and the countdown module is entered. If the fatigue state is not relieved at the end of the countdown, the TV power is cut off;

[0009] A countdown module is used to display the remaining countdown time after the multi-sensor fusion module, the posture recognition module and the eye fatigue detection module trigger a prompt, and to perform one of the cut-off or restore operations after the countdown ends, and to display the countdown process in real time on the TV screen;

[0010] Environmental sensing module, used to detect indoor light intensity and noise level, and dynamically adjust the brightness, contrast and volume of the TV screen according to the detection results;

[0011] The speaker module is used to give reminders and instructions to children through voice, including reminders of too close distance, incorrect posture and eye fatigue.

[0012] Preferably, the system further comprises:

[0013] The main control module is used to coordinate the operation of various functional modules and dynamically adjust the power supply status, picture display and volume parameters of the TV by controlling the power on and off through relays based on the comprehensive data of the child's distance, posture, eye fatigue and environmental conditions;

[0014] WI FI module, used to realize wireless communication between the system and mobile device APP, supporting remote control and data synchronization;

[0015] The APP module is used to remotely control the system through a mobile device, including turning on or off the child mode, viewing the images captured by the TV camera in real time, issuing voice commands through the TV speakers, and setting the warning distance and viewing time period.

[0016] Preferably, the multi-sensor fusion module uses a combination of infrared sensors and ToF sensors to comprehensively judge the distance between the child and the TV to improve detection accuracy and anti-interference ability.

[0017] Preferably, the countdown duration of the countdown module is set through the APP module, and independent countdown parameters are provided according to different scenarios of distance detection, posture adjustment and eye fatigue relief.

[0018] Preferably, the posture recognition module analyzes the child's head angle and body posture through an algorithm, and dynamically updates the data during the countdown. When the posture is adjusted to the correct state, the countdown is terminated in advance. The posture recognition module captures the child's head angle and body tilt angle through a camera and determines whether the posture meets the health standard through the following formula:

[0019] and

[0020] In the formula, θ h Indicates the deviation angle of the head from the vertical direction, θ b Indicates the body's inclination angle from the vertical direction. and The preset maximum allowable angle can be adjusted through the APP module. When |θ h |or|θ b|When the preset range is exceeded, a prompt is triggered and the countdown module is entered. If the posture is not adjusted to the qualified range at the end of the countdown, the TV screen is cut off.

[0021] Preferably, the eye fatigue detection module captures the child's blinking frequency, eye closing duration and gaze direction through a camera, and dynamically determines whether the fatigue state is relieved according to a real-time algorithm, wherein the real-time algorithm includes:

[0022] F=k1f e +k2t c

[0023] Where F represents fatigue factor, f e Indicates the number of blinks per unit time, t c Indicates the duration of continuous eye closure, k1 and k2 are weight coefficients, indicating the influence of blinking frequency and eye closure time on fatigue factor, which can be preset or adjusted by user calibration;

[0024]

[0025] In the formula, F max is the dynamic threshold of fatigue factor, F base represents the basic fatigue factor threshold, which is set according to the user's age or health needs. T represents the cumulative viewing time of children. T max represents the preset maximum viewing time, α is the time decay coefficient, reflecting the effect of viewing time on fatigue tolerance;

[0026] When F ≥ F max When the countdown is over, the prompt is triggered and the countdown module is entered. If the fatigue state is not relieved at the end of the countdown, the TV power is cut off. When it is detected that the fatigue state is relieved, the TV power is restored and the picture is redisplayed after the set time is maintained after restoration.

[0027] Preferably, the speaker module is combined with the countdown module to remind the child of the remaining time by voice during the countdown period, and to broadcast the next instruction or recovery prompt after the operation is completed.

[0028] Preferably, when the environment perception module detects insufficient light, it issues a prompt to remind the user to improve the ambient lighting, and when the noise level is too high, it automatically lowers the TV volume.

[0029] Preferably, the APP module supports generating a report on children's viewing behavior, including viewing time, number of posture adjustments, distance prompt records, and fatigue detection results.

[0030] Preferably, the main control module dynamically coordinates the work processes of each module according to the status signal of the countdown module to ensure that the cutting off and restoring processes of the TV picture and volume are accurately synchronized.

[0031] The present invention provides a remotely adjustable child safety distance television control system, which has the following beneficial effects:

[0032] 1. The present invention uses a multi-sensor fusion module, a posture recognition module and an eye fatigue detection module to work together to monitor children's viewing distance, sitting posture and eye status in real time, and conduct timely intervention to avoid visual fatigue and myopia caused by close viewing, bad posture and long-term eye use, thereby effectively protecting children's vision health.

[0033] 2. The present invention detects the indoor light intensity and noise level in real time through the environmental perception module, and dynamically adjusts the brightness, contrast and volume of the TV screen according to the detection results. It can effectively adapt to different environmental conditions and provide the best viewing experience. At the same time, it avoids visual fatigue caused by too high or too low screen brightness and hearing discomfort caused by noise interference, thereby creating a healthier and more comfortable viewing environment for children.

[0034] 3. Through the duration setting function of the countdown module, the present invention can provide independent countdown parameters for different scenarios of distance detection, posture adjustment and eye fatigue relief, meet various usage needs, avoid insufficient or excessive intervention due to unified duration setting, effectively improve the flexibility and pertinence of the system, and at the same time, perform personalized settings through the APP module to make the system more adaptable to the behavioral characteristics of different users, further enhancing the practicality and accuracy of children's health management. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a system architecture diagram of the present invention. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to better understand the present invention, the above contents are described in detail below in conjunction with specific embodiments.

[0038] Please see attached Figure 1 The embodiment of the present invention provides a remotely adjustable child safety distance television control system, comprising:

[0039] The multi-sensor fusion module is used to detect the distance between the child and the TV in real time. When it is detected that the distance between the child and the TV is less than the set warning distance, a prompt is triggered and the countdown module is entered. If the child has not left when the countdown ends, the TV power is cut off;

[0040] In the present invention, the multi-sensor fusion module can effectively monitor the distance status of children when watching TV by detecting the distance between children and TV in real time. When it is detected that the distance between children and TV is less than the set warning distance, the system will immediately trigger the prompt function to guide children to pay attention to adjusting the viewing distance, thereby avoiding bad eye habits caused by too close distance in the early intervention stage. At the same time, the module combines the countdown mechanism to give children a certain amount of adjustment time after the prompt to ensure the flexibility of the intervention process and the comfort of the experience. If the child has not left the set safe distance range at the end of the countdown, the system will cut off the power supply of the TV through the control logic, fundamentally preventing the child from continuing to watch at close range, providing strong technical support for children's healthy viewing, and effectively reducing the potential harm to vision health caused by watching TV at close range.

[0041] The posture recognition module captures the child's viewing posture through the camera. When the posture does not meet the health standard, it triggers a prompt and enters the countdown module. If the posture is not adjusted to a qualified state at the end of the countdown, the TV screen is cut off and the child is instructed to adjust the sitting posture through voice;

[0042] In the present invention, the posture recognition module captures the posture of children when watching TV through a camera, and can analyze the child's head angle, body inclination and overall sitting posture in real time to determine whether it meets the set health standards. When it is detected that the child's posture deviates from the health standard, such as the head leaning forward, the body tilting too much, or the hunchback, the system will immediately trigger the prompt function to remind the child to adjust the sitting posture through voice or picture. At the same time, the module is linked with the countdown mechanism to provide children with a certain amount of time to adjust their posture, making the intervention more flexible. If the child's posture is still not adjusted to a qualified state at the end of the countdown, the system will automatically cut off the TV screen, and display the outline of the character and voice instructions on the screen to further guide the child to correct the bad posture. The correction effect is enhanced by visual and auditory dual prompts, which can also help children understand the correct sitting posture standards more intuitively and form good posture habits.

[0043] The eye fatigue detection module determines the degree of fatigue by detecting the child's blinking frequency and eye closure duration. When the fatigue degree exceeds the set threshold, a prompt is triggered and the countdown module is entered. If the fatigue state is not relieved at the end of the countdown, the TV power is cut off;

[0044] In the present invention, the eye fatigue detection module can accurately determine the degree of eye fatigue of children by monitoring the blinking frequency and closing duration of children in real time. By capturing the dynamic changes of children's eyes, the blinking and closing data are extracted and compared with the set healthy eye standards. When the degree of fatigue of the child is monitored to exceed the preset threshold, the system will immediately trigger the prompt function, remind the child to pay attention to rest through voice or picture, and help it relieve eye fatigue in the early stage. The module is also linked with the countdown mechanism to provide children with reasonable adjustment time, so that they have the opportunity to take the initiative to rest or leave the screen. If the child's fatigue state is still not relieved at the end of the countdown, the system will forcibly cut off the power supply of the TV to prevent long-term use of the eyes from causing further damage to vision health. Not only can unhealthy viewing behavior be interrupted in time, but also the necessary recovery time is provided for the eyes through forced rest, effectively reducing the risk of visual fatigue and myopia caused by long-term staring at the screen.

[0045] A countdown module is used to display the remaining countdown time after the multi-sensor fusion module, the posture recognition module and the eye fatigue detection module trigger a prompt, and to perform one of the cut-off or restore operations after the countdown ends, and to display the countdown process in real time on the TV screen;

[0046] In the present invention, the countdown module assumes the core time control and execution functions after the multi-sensor fusion module, the posture recognition module and the eye fatigue detection module trigger the prompt. By displaying the remaining time of the countdown, the module can provide children with clear adjustment or rest prompts, so that they have the opportunity to improve their behavior independently during the countdown period, thereby avoiding the discomfort or resistance that may be caused by direct forced intervention. At the same time, the remaining time is displayed on the TV screen to intuitively convey the urgency of the operation to the children, and at the same time cooperate with voice prompts to further enhance the reminder effect. The logical design of the module ensures that after the countdown is over, the corresponding operation is performed according to the current state, such as cutting off the power supply or the picture when the abnormal state has not been eliminated, stopping the child’s unhealthy behavior, and if the state has returned to normal, terminating the intervention and restoring the normal display of the TV. This can not only ensure the effectiveness of the intervention, but also minimize the impact on the normal viewing experience;

[0047] In addition, the countdown module is highly flexible and can adapt independent countdown duration settings according to different triggering scenarios (such as too close distance, poor posture or eye fatigue) to meet the intervention needs of different problems. By combining with the APP module, parents can remotely adjust the countdown time parameters and customize the usage rules suitable for children, thereby further improving the practicality and pertinence of the system. Therefore, through precise time control, intuitive visual feedback and flexible parameter adjustment, it not only provides children with flexible behavior improvement space, but also ensures the scientificity and efficiency of the intervention process, effectively achieving a balance between health protection and viewing experience, and providing important technical support for children's eye health management.

[0048] Environmental sensing module, used to detect indoor light intensity and noise level, and dynamically adjust the brightness, contrast and volume of the TV screen according to the detection results;

[0049] In the present invention, the environment perception module can dynamically perceive changes in the external environment by real-time detection of indoor light intensity and noise level, and provide accurate data support for the brightness, contrast and volume adjustment of the TV screen. When the indoor light is insufficient, the module can automatically increase the screen brightness to ensure that the displayed content is clearly visible, thereby avoiding eye fatigue caused by too dark light. When the light is too strong, the module will reduce the screen brightness to reduce the strong light stimulation to children's eyes and protect their eyesight. In terms of noise detection, the module can sense the indoor ambient volume level and dynamically adjust the TV volume according to noise changes. When the noise level is high, the system automatically increases the volume to ensure that children can clearly hear the TV content. When the noise level is reduced or in a quiet environment, the system will reduce the volume to avoid potential damage to children's hearing due to excessive volume. In addition, the environment perception module can continuously monitor light and noise data, and adjust TV parameters in real time when they change, to ensure that the viewing environment is always in the best state. Through this intelligent adjustment mechanism, the module not only provides children with a more comfortable viewing experience, but also effectively reduces the negative impact of environmental factors on vision and hearing;

[0050] Therefore, through the intelligent light and noise perception function, dynamic optimization of TV display and volume is achieved, which not only improves the comfort of children's TV viewing experience, but also further protects children's vision and hearing health, fully reflecting the combination of technology and health protection.

[0051] The speaker module is used to give reminders and instructions to children through voice, including reminders of too close distance, incorrect posture and eye fatigue.

[0052] In the present invention, the speaker module can, through the voice prompt function, promptly issue clear reminders and instructions to children when it detects abnormal situations such as children being too close, having incorrect posture or eye fatigue while watching TV. The module transmits information in the form of voice, which is both intuitive and easy to understand, and can effectively guide children to adjust their behavior, thereby improving their viewing habits, reducing visual fatigue and health risks, and the speaker module has multi-level feedback capabilities during the prompting process. For example, when an abnormal state is detected, the module can use a soft voice to remind children to pay attention to adjustments, such as "please keep an appropriate distance" or "please adjust your sitting posture", thereby avoiding the discomfort caused by compulsory measures in the early stages of intervention. At the same time, when the abnormal state persists or cannot be corrected, the module can also use clearer voice prompts to enhance the intervention effect, such as "please adjust your sitting posture immediately, the TV will be paused soon";

[0053] In addition, the voice command content of the speaker module can change dynamically according to the specific scene detected, making the prompt more accurate and personalized. For example, it reminds you to adjust your position when the distance is too close, provides sitting guidance when the posture is incorrect, and recommends taking a break when the eyes are tired, thereby providing targeted solutions for different problems. The module is combined with the countdown function to synchronize voice prompts for the remaining time during the countdown, which helps to improve the efficiency of children's behavior adjustment. This achieves flexible intervention in children's viewing behavior, which can not only help children quickly understand and adjust bad behaviors, but also avoid the impact of excessive intervention on the viewing experience, ultimately achieving the purpose of protecting children's eyesight and improving eye habits, while improving the intelligence and humanization of the system.

[0054] The system also includes:

[0055] The main control module is used to coordinate the operation of various functional modules and dynamically adjust the power supply status, picture display and volume parameters of the TV by controlling the power on and off through relays based on the comprehensive data of the child's distance, posture, eye fatigue and environmental conditions;

[0056] WI FI module, used to realize wireless communication between the system and mobile device APP, supporting remote control and data synchronization;

[0057] The APP module is used to remotely control the system through a mobile device, including turning on or off the child mode, viewing the images captured by the TV camera in real time, issuing voice commands through the TV speakers, and setting the warning distance and viewing time period.

[0058] In the present invention, the main control module serves as the core control unit of the system, and realizes comprehensive monitoring and precise intervention of children's TV viewing behavior by coordinating the operation of various functional modules. The main control module comprehensively processes real-time data from the multi-sensor fusion module, posture recognition module, eye fatigue detection module and environmental perception module, dynamically analyzes children's viewing distance, sitting posture, eye status and environmental conditions, and triggers corresponding intervention measures through control logic, such as cutting off or restoring power supply, adjusting picture display and volume parameters, etc., so as to effectively protect children's vision health and viewing experience. The module realizes precise control of power supply through relays, ensuring that the intervention action is fast and reliable, meeting the system's high requirements for safety and response speed;

[0059] The WI FI module provides the system with wireless communication capabilities with mobile device APP, allowing parents to check the system status and remotely control it at any time through mobile devices. The module supports real-time data synchronization. Parents can view the images captured by the TV camera in real time through the APP module to understand the viewing status of their children. At the same time, parents can send voice commands through the APP and remind or guide their children through the TV speakers, thereby realizing remote interaction and enhancing the practicality and convenience of the system.

[0060] The APP module is the human-computer interaction interface of the system, which provides a wealth of functional options to help parents better manage their children's viewing behavior. Parents can turn on or off the child mode through the APP module, and flexibly control whether the system monitors and intervenes in the children's viewing behavior. In addition, the APP also supports personalized parameter settings, such as adjustment of the warning distance, setting of daily viewing time periods, and customization of countdown duration to meet the health needs of different children. The behavioral data and monitoring records generated by the APP module provide parents with a scientific reference basis, which helps to track and optimize children's viewing habits in the long term.

[0061] The multi-sensor fusion module combines infrared sensors with ToF sensors to comprehensively judge the distance between children and the TV to improve detection accuracy and anti-interference capabilities.

[0062] In the present invention, the multi-sensor fusion module realizes high-precision monitoring of the distance between children and the TV by combining the detection methods of infrared sensors and ToF sensors. The infrared sensor can respond quickly and provide stable distance detection data, while the ToF sensor can accurately obtain distance information by measuring the light flight time. The combination of the two can maintain excellent detection performance under different light conditions and complex environments, significantly improving the detection accuracy and reliability of the system;

[0063] The infrared sensor has strong sensitivity within a short range and can quickly capture children's approaching behavior, while the ToF sensor has a larger detection range and higher anti-interference ability, which is suitable for accurate distance measurement in complex indoor scenes. When the data of the two sensors are used in combination, the system can filter out environmental interference, such as light reflection or interference from other objects, through a fusion algorithm to ensure the stability and accuracy of the monitoring results.

[0064] In addition, the multi-sensor fusion module can dynamically adapt to environmental changes, such as light intensity, background complexity, etc., to maintain continuous monitoring capabilities under different conditions. Through high-precision distance judgment, when it detects that a child is too close, the module can quickly trigger prompts and intervention measures, providing timely and reliable support for protecting vision health; through the combination of the multi-sensor fusion module with the infrared sensor and the ToF sensor, the problems of low detection accuracy and insufficient environmental adaptability that may exist in a single sensor are overcome, providing a solid technical guarantee for the system's distance monitoring, and effectively improving the overall performance and practicality of the system.

[0065] The countdown duration of the countdown module is set through the APP module, and independent countdown parameters are provided according to different scenarios of distance detection, posture adjustment and eye fatigue relief.

[0066] In the present invention, the countdown duration of the countdown module can be flexibly set through the APP module, and independent countdown parameters are provided for different scenarios such as distance detection, posture adjustment and eye fatigue relief, so as to achieve more accurate personalized intervention functions. Parents can use the APP module to set the countdown duration for each scenario according to the age, behavioral habits and health needs of the child. For example, the time in the distance detection scenario is shorter so as to quickly remind the child to adjust the viewing distance, while the time in the eye fatigue relief scenario can be set longer to give the child sufficient rest space;

[0067] In addition, the independent setting function of countdown parameters avoids the problem of insufficient or excessive intervention that may be caused by a unified countdown strategy. Through the remote control of the APP module, parents can adjust the countdown length at any time according to actual needs, improving the flexibility and practicality of the system. At the same time, the real-time feedback function makes the countdown process more visual, helping children to intuitively understand the remaining time and improve the effect of intervention. Therefore, through the combination of the countdown module and the APP module, personalized intervention for multiple scenarios is achieved, which not only enhances the intelligence and accuracy of the system, but also meets the diverse needs of children's health management, providing higher flexibility and practicality for the application of the system.

[0068] The posture recognition module uses an algorithm to analyze the child's head angle and body posture, and dynamically updates the data during the countdown. When the posture is adjusted to the correct state, the countdown is terminated in advance. The posture recognition module captures the child's head angle and body tilt angle through the camera and determines whether the posture meets the health standard through the following formula:

[0069] and

[0070] In the formula, θ h Indicates the deviation angle of the head from the vertical direction, θ b Indicates the body's inclination angle from the vertical direction. and The preset maximum allowable angle can be adjusted through the APP module. When |θ h |or|θ b |When the preset range is exceeded, a prompt is triggered and the countdown module is entered. If the posture is not adjusted to the qualified range at the end of the countdown, the TV screen is cut off.

[0071] In the present invention, the posture recognition module uses a high-precision algorithm to perform real-time analysis of the child's head angle and body tilt angle to accurately determine whether their viewing posture meets the health standard. The module captures the child's head and body posture data through a camera, and dynamically calculates whether the current posture exceeds the allowable range in combination with a preset healthy sitting posture threshold. When it is detected that the child's posture does not meet the standard, such as the head deviation is too large or the body tilt is serious, the module immediately triggers a prompt and enters a countdown mechanism to remind the child to adjust the posture in time;

[0072] During the countdown, the posture recognition module can continuously and dynamically update the child's posture data and detect its adjustment in real time. If the child is detected to have adjusted to the correct healthy posture before the countdown ends, the module will terminate the countdown in advance and return to normal state, thereby avoiding unnecessary intervention and improving the user experience. If the posture has not been adjusted to a qualified state at the end of the countdown, the module will cut off the TV screen and further guide the child to correct the bad sitting posture through voice and screen display; and the algorithm in the module combines the offset angle of the head and the vertical direction and the inclination angle of the body and the vertical direction for joint judgment, and uses the health standard formula to determine whether the sitting posture is qualified. The threshold parameters of the system can be personalized through the APP module to adapt to the body shape and habits of different children, thereby providing more flexible health management.

[0073] The eye fatigue detection module uses a camera to capture children's blinking frequency, eye closure duration, and gaze direction, and dynamically determines whether the fatigue state has been relieved based on a real-time algorithm. The real-time algorithm includes:

[0074] F=k1f e+k2t c

[0075] Where F represents fatigue factor, f e Indicates the number of blinks per unit time, t c Indicates the duration of continuous eye closure, k1 and k2 are weight coefficients, indicating the influence of blinking frequency and eye closure time on fatigue factor, which can be preset or adjusted by user calibration;

[0076]

[0077] In the formula, F max is the dynamic threshold of fatigue factor, F base represents the basic fatigue factor threshold, which is set according to the user's age or health needs. T represents the cumulative viewing time of children. T max represents the preset maximum viewing time, α is the time decay coefficient, reflecting the effect of viewing time on fatigue tolerance;

[0078] When F ≥ F max When the countdown is over, the prompt is triggered and the countdown module is entered. If the fatigue state is not relieved at the end of the countdown, the TV power is cut off. When it is detected that the fatigue state is relieved, the TV power is restored and the picture is redisplayed after the set time is maintained after restoration.

[0079] In the present invention, the eye fatigue detection module uses a camera to capture children's blinking frequency, eye closure duration and gaze direction in real time, and uses advanced image processing technology and algorithms to dynamically analyze the child's eye status to determine whether there are signs of fatigue. The module calculates the fatigue factor based on the blinking frequency and continuous eye closure time per unit time, and ensures the accuracy of the detection results by comprehensively evaluating the impact of the two on the fatigue state. At the same time, the relevant parameters can be calibrated and adjusted according to user needs or the characteristics of children of different age groups to meet diverse health needs;

[0080] The module adopts a dynamic threshold judgment mechanism. The fatigue threshold is based on the basic settings and is adjusted in real time in combination with the accumulated viewing time of the child, ensuring that the system can adapt to changes in viewing time and improve the sensitivity and accuracy of detection. When it is detected that the child's fatigue factor exceeds the dynamic threshold, the system triggers a prompt and enters the countdown module to provide children with an opportunity to adjust or rest. After the countdown, if the fatigue state has not been relieved, the module will cut off the power supply of the TV and force the viewing behavior to stop, thereby effectively protecting children's eyesight. When the system detects that the fatigue state has been relieved, the TV will resume power supply and delay the display of the picture to ensure that eye fatigue is fully relieved and avoid the adverse effects of frequent switching on vision health. Therefore, through the eye fatigue detection module, through real-time analysis of eye status indicators, combined with dynamically adjusted fatigue thresholds and flexible intervention mechanisms, scientific monitoring and protection of children's eye health is achieved, effectively preventing visual fatigue caused by long-term viewing, and providing children with a safer and smarter eye management solution.

[0081] The speaker module is combined with the countdown module to remind children of the remaining time through voice during the countdown period, and broadcast the next instruction or recovery prompt after the operation is completed.

[0082] When the ambient sensing module detects insufficient light, it issues a prompt to remind the user to improve the ambient lighting; when the noise level is too high, it automatically lowers the TV volume.

[0083] The APP module supports the generation of children's viewing behavior reports, including viewing time, number of posture adjustments, distance prompt records and fatigue detection results.

[0084] In the present invention, the APP module supports the generation of a comprehensive children's viewing behavior report by integrating and analyzing the system operation data, providing parents with an intuitive basis for health management. The behavior report includes the child's cumulative viewing time, posture adjustment times, distance prompt records, and fatigue detection results, which can help parents understand their children's viewing habits and eye status;

[0085] The viewing time statistics function can record the cumulative daily usage time of children, helping parents to understand their children's viewing rhythm and prevent health problems caused by excessive eye use. The posture adjustment statistics provide the number of times the system has prompted and adjusted children due to poor posture, providing a reference for parents to understand their children's sitting habits and improvement effects. The distance prompt recording function records the close-up viewing behavior detected by the system, including the number of triggers and adjustment status, so that parents can have a clear understanding of the compliance of their children's viewing distance;

[0086] In addition, fatigue detection results can reflect the changing trend of children's eye conditions, including the frequency of triggering fatigue prompts and the relief of fatigue status. This function not only provides parents with real-time feedback on eye health, but also provides data support for optimizing children's healthy behaviors. In summary, the APP module converts system monitoring data into useful information by generating children's viewing behavior reports, helping parents to fully understand children's viewing behavior and health status, and achieve scientific health management. At the same time, it provides a quantitative basis and improvement direction for optimizing children's viewing habits.

[0087] The main control module dynamically coordinates the work processes of each module according to the status signal of the countdown module to ensure that the cutting off and restoring processes of the TV picture and volume are accurately synchronized.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remotely adjustable child safety distance TV control system, characterized in that: include: The multi-sensor fusion module is used to detect the distance between the child and the TV in real time. When it is detected that the distance between the child and the TV is less than the set warning distance, a prompt is triggered and the countdown module is entered. If the child has not left when the countdown ends, the TV power is cut off; The posture recognition module captures the child's viewing posture through the camera. When the posture does not meet the health standard, it triggers a prompt and enters the countdown module. If the posture is not adjusted to a qualified state at the end of the countdown, the TV screen is cut off and the child is instructed to adjust the sitting posture through voice; The eye fatigue detection module determines the degree of fatigue by detecting the child's blinking frequency and eye closure duration. When the fatigue degree exceeds the set threshold, a prompt is triggered and the countdown module is entered. If the fatigue state is not relieved at the end of the countdown, the TV power is cut off; A countdown module is used to display the remaining countdown time after the multi-sensor fusion module, the posture recognition module and the eye fatigue detection module trigger a prompt, and to perform one of the cut-off or restore operations after the countdown ends, and to display the countdown process in real time on the TV screen; Environmental sensing module, used to detect indoor light intensity and noise level, and dynamically adjust the brightness, contrast and volume of the TV screen according to the detection results; The speaker module is used to give reminders and instructions to children through voice, including reminders of too close distance, incorrect posture and eye fatigue.

2. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The system further comprises: The main control module is used to coordinate the operation of various functional modules and dynamically adjust the power supply status, picture display and volume parameters of the TV by controlling the power on and off through relays based on the comprehensive data of the child's distance, posture, eye fatigue and environmental conditions; WIFI module, used to realize wireless communication between the system and mobile device APP, supporting remote control and data synchronization; The APP module is used to remotely control the system through a mobile device, including turning on or off the child mode, viewing the images captured by the TV camera in real time, issuing voice commands through the TV speakers, and setting the warning distance and viewing time period.

3. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The multi-sensor fusion module uses a combination of infrared sensors and ToF sensors to comprehensively judge the distance between children and the TV to improve detection accuracy and anti-interference ability.

4. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The countdown duration of the countdown module is set through the APP module, and independent countdown parameters are provided according to different scenarios of distance detection, posture adjustment and eye fatigue relief.

5. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The posture recognition module analyzes the child's head angle and body posture through an algorithm and dynamically updates the data during the countdown. When the posture is adjusted to the correct state, the countdown is terminated in advance. The posture recognition module captures the child's head angle and body tilt angle through a camera and determines whether the posture meets the health standard through the following formula: In the formula, θ h Indicates the deviation angle of the head from the vertical direction, θ b Indicates the body's inclination angle from the vertical direction. and The preset maximum allowable angle can be adjusted through the APP module. When |θ h |or|θ b |When the preset range is exceeded, a prompt is triggered and the countdown module is entered. If the posture is not adjusted to the qualified range at the end of the countdown, the TV screen is cut off.

6. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The eye fatigue detection module captures the child's blinking frequency, eye closing duration and gaze direction through a camera, and dynamically determines whether the fatigue state is relieved based on a real-time algorithm, wherein the real-time algorithm includes: F=k1f e +k2t c Where F represents fatigue factor, f e Indicates the number of blinks per unit time, t c Indicates the duration of continuous eye closure, k1 and k2 are weight coefficients, indicating the influence of blinking frequency and eye closure time on fatigue factor, which can be preset or adjusted by user calibration; In the formula, F max is the dynamic threshold of fatigue factor, F base represents the basic fatigue factor threshold, which is set according to the user's age or health needs. T represents the cumulative viewing time of children. T max represents the preset maximum viewing time, α is the time decay coefficient, reflecting the effect of viewing time on fatigue tolerance; When F ≥ F max When the countdown is over, the prompt is triggered and the countdown module is entered. If the fatigue state is not relieved at the end of the countdown, the TV power is cut off. When it is detected that the fatigue state is relieved, the TV power is restored and the picture is redisplayed after the set time is maintained after restoration.

7. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The speaker module is combined with the countdown module to remind the child of the remaining time through voice during the countdown period, and broadcast the next instruction or recovery prompt after the operation is completed.

8. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: When the environment sensing module detects insufficient light, it issues a prompt to remind the user to improve the ambient lighting, and when the noise level is too high, it automatically lowers the TV volume.

9. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The APP module supports generating a children's viewing behavior report, including viewing time, number of posture adjustments, distance prompt records, and fatigue detection results.

10. The remotely adjustable child safety distance television control system according to claim 1, characterized in that: The main control module dynamically coordinates the work processes of each module according to the status signal of the countdown module to ensure that the cutting off and restoring processes of the TV picture and volume are accurately synchronized.

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