A myopia prevention and control method and system according to specific scenarios

Abstract

The present invention relates to the technical field of myopia prevention and control, and in particular to a myopia prevention and control method and system according to a specific scenario, wherein the method comprises the following steps: S1, when the sensor mechanism of the signal main component is triggered, the signal main component transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold; S2, the signal slave component continuously searches for the signal transmitted by the signal main component, and when the signal slave component receives the transmitted signal of the signal main component, it sends a signal back to the signal main component; S3, when the signal receiver of the signal main component receives the return signal of the signal slave component, it starts a feedback reminder mechanism. The signal main component of the present invention transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold, which can reduce energy consumption, reduce unnecessary loss of continuously transmitting signals, and increase the use time; in addition, it is ensured that the feedback reminder mechanism can be activated only within a preset signal range, so as to avoid causing trouble to the user and improve the comfort and reliability of the use of the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of myopia prevention and control, and in particular to a myopia prevention and control method and system according to specific scenarios. Background Art

[0002] In recent years, with the popularity of electronic products and the increase in students' study time, more and more students suffer from eye diseases such as myopia, strabismus, eye fatigue, etc. For this reason, many glasses for preventing and correcting myopia have appeared on the market, but there are the following problems: simply using distance sensors to detect distance, when children tilt their heads or lie on the table with books placed in front of them to read, there will be detection failure; in addition, the current myopia prevention and control glasses monitor the user's usage status anytime and anywhere after the user wears them. Even if the user is not in the learning state, the user's posture will be monitored and feedback will be given. Even if the user is not in the learning state, feedback will be given to remind the customer that the customer must replace the regular glasses before returning to normal life, which causes serious trouble to the customer. Summary of the invention

[0003] In view of the problems of the prior art, the present invention provides a myopia prevention and control method and system according to specific scenarios. The method and system are cleverly designed. A signal main component transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold, which can reduce energy consumption, reduce unnecessary loss of continuously transmitting signals, and increase the usage time, and is suitable for actual user usage scenarios. In addition, when the strength of the return signal received by the signal main component from the signal slave component is greater than the preset threshold, the feedback reminder mechanism is started, otherwise the feedback reminder mechanism is not started, so that the feedback reminder mechanism is started only when the signal main component and the signal slave component are within a preset range. On the one hand, energy consumption can be reduced, and on the other hand, the feedback reminder mechanism is started only when it is within the preset signal range, thereby avoiding causing trouble to users and improving the comfort and reliability of the use of the present invention.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides a method for preventing and controlling myopia according to a specific scenario, comprising the following steps:

[0006] S1, when the sensor mechanism of the signal main component is triggered, the signal main component transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold;

[0007] S2, the signal slave continuously searches for the signal transmitted by the signal master. When the signal slave receives the signal transmitted by the signal master, it sends the signal back to the signal master.

[0008] S3, when the signal receiver of the signal master receives the return signal from the signal slave, the feedback reminder mechanism is activated.

[0009] Wherein, in the step S1, after the signal main component stops transmitting the signal, the signal receiver of the signal main component is turned on at the same time.

[0010] Wherein, in the step S2, when the signal slave component cannot receive the transmission signal of the signal master component, it is determined that the signal master component and the signal slave component are not within the control pairing range, and the signal receiver of the signal master component is turned off.

[0011] Wherein, in the step S3, when the strength of the signal sent back by the signal slave received by the signal master is greater than a preset threshold, the feedback reminder mechanism is started.

[0012] Among them, the signal master component and / or the signal slave component are communicatively connected to the cloud server and / or the smart terminal.

[0013] The present invention also provides a myopia prevention and control system according to a specific scenario, comprising a signal master and a signal slave, wherein the signal master is provided with a signal transmitter and / or a signal receiver, the signal slave is provided with a signal receiver and / or a signal transmitter, and the signal master is connected to the signal slave by signal; the signal master is provided with a sensor mechanism, and the signal master or / and the signal slave are provided with a feedback reminder mechanism;

[0014] When the signal main component is paired and connected with the signal slave component, when the sensor mechanism detects that the user wearing the signal main component has improper eye use, a signal is sent to the feedback reminder mechanism to remind the user.

[0015] Wherein, the signal transmitter includes one or more of a Bluetooth signal transmitter, an infrared signal transmitter, a WIFI signal transmitter or an ultrasonic signal transmitter.

[0016] The signal receiver includes one or more of a Bluetooth signal receiver, an infrared signal receiver, a WIFI signal receiver or an ultrasonic signal receiver.

[0017] The sensor mechanism includes one or more of a distance sensor, a light environment sensor and an angle sensor.

[0018] Wherein, the feedback reminder mechanism includes one or more of a buzzer reminder mechanism, a voice broadcast reminder mechanism, a vibration reminder mechanism and an audible and visual alarm reminder mechanism.

[0019] Wherein, a control circuit board A is arranged on the signal main component, an MCU processor B is arranged on the control circuit board A, and the MCU processor B is electrically connected to the sensor mechanism, the feedback reminder mechanism of the signal main component and the signal transmitter respectively;

[0020] The signal main component is detachably provided with a battery C, and the signal main component is provided with a feedback reminder mechanism. The battery C is used to supply power to the sensor mechanism, the MCU processor B and the feedback reminder mechanism of the signal main component.

[0021] Wherein, the signal slave is provided with a control circuit board D, the control circuit board D is provided with an MCU processor E, and the MCU processor E is electrically connected to the signal receiver and the feedback reminder mechanism of the signal slave respectively;

[0022] The signal slave is detachably provided with a battery F, and the signal slave is provided with a feedback reminder mechanism. The battery F is used to supply power to the MCU processor E and the feedback reminder mechanism of the signal slave.

[0023] There are multiple signal slaves, and each signal slave has the same ID address.

[0024] Wherein, a signal attenuation component is arranged on the signal transmitter of the signal master component and / or on the signal receiver of the signal slave component.

[0025] Among them, the control circuit board A is provided with a storage module and a wireless transmission module which are electrically connected to the MCU processor B respectively.

[0026] Beneficial effects of the present invention:

[0027] The present invention is cleverly designed. The signal master transmits signals at a preset signal strength threshold and stops transmitting after a preset time threshold, which can reduce energy consumption, reduce unnecessary loss of continuously transmitting signals, and increase usage time, making it suitable for actual user usage scenarios. In addition, when the strength of the return signal from the signal slave received by the signal master is greater than the preset threshold, the feedback reminder mechanism is activated, otherwise the feedback reminder mechanism is not activated, ensuring that the feedback reminder mechanism will only be activated when the signal master and the signal slave are within a preset range. On the one hand, it can reduce energy consumption, and on the other hand, it can ensure that the feedback reminder mechanism is activated only within the preset signal range, thereby avoiding trouble to users and improving the comfort and reliability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a flow chart of a myopia prevention and control method according to a specific scenario of the present invention.

[0029] Figure 2 This is a schematic diagram of the principle of a myopia prevention and control system according to a specific scenario of the present invention.

[0030] exist Figure 1-2 Reference numerals in the drawings include:

[0031] 1. Signal master component; 2. Signal slave component. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0033] Example 1

[0034] A method for myopia prevention and control based on specific scenarios, such as Figure 1 , including the following steps:

[0035] S1, when the sensor mechanism of the signal main component is triggered, the signal main component transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold; wherein, in said step S1, after the signal main component stops transmitting the signal, the signal receiver of the signal main component is turned on at the same time.

[0036] S2, the signal slave component continuously searches for the signal transmitted by the signal master component. When the signal slave component receives the transmitted signal from the signal master component, it sends a signal back to the signal master component. Wherein, in step S2, when the signal slave component cannot receive the transmitted signal from the signal master component, it is determined that the signal master component and the signal slave component are not within the prevention and control pairing range, and the signal receiver of the signal master component is turned off.

[0037] S3, when the signal receiver of the signal master receives the return signal from the signal slave, the feedback reminder mechanism is activated. In step S3, when the strength of the return signal from the signal slave received by the signal master is greater than a preset threshold, the feedback reminder mechanism is activated.

[0038] Specifically, the present invention is cleverly designed and can detect the user's irregular eye habits in a specific environment; when the signal range between the signal main component and the signal slave component exceeds the signal range of the two, it is judged that the user is in a non-learning working mode, and even if the user performs irregular actions, the feedback reminder mechanism will not be triggered, avoiding the feedback reminder mechanism from sending prompts to the user in any scenario, causing trouble to the user, thereby improving the comfort and reliability of the use of the present invention; further, the signal main component of the present invention transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold, which can reduce energy consumption, reduce unnecessary loss of continuously transmitting signals, and increase the use time, and is suitable for actual user usage scenarios; in addition, when the strength of the return signal from the signal slave component received by the signal main component is greater than the preset threshold, the feedback reminder mechanism is activated, otherwise the feedback reminder mechanism is not activated, ensuring that the feedback reminder mechanism will only be activated when the signal main component and the signal slave component are within the preset range, on the one hand, it can reduce energy consumption, and on the other hand, it ensures that the feedback reminder mechanism can be activated only within the preset signal range, avoiding trouble to the user, and improving the comfort and reliability of the use of the present invention.

[0039] Specifically, in actual use, the signal master is worn on the user, and the signal slave is placed in a specific scene (such as a workbench, study table, computer desk, etc.) as needed. The signal transmission between the signal master and the signal slave is achieved by pairing the signal transmitter with the signal receiver; when the user arrives at a specific scene equipped with the signal slave, the signal master and the signal slave are located in the mutually paired signal range (i.e., within the myopia prevention and control range), and the sensor mechanism can detect the user's eye distance, head tilt angle, light environment, eye use time, etc. when the user is learning. When the user has irregular eye habits in a specific environment, the feedback reminder mechanism sends a prompt to the user to remind the user to adjust the posture in time, thereby achieving the effect of myopia prevention and control;

[0040] The purpose of the present invention is to only monitor the user's irregular eye habits in a specific environment; when the signal range between the signal master and the signal slave exceeds the signal range of both, it is judged that the user is in a non-learning working mode. Even if the user performs irregular actions, the feedback reminder mechanism will not be triggered, thereby avoiding the feedback reminder mechanism sending prompt feedback to the user in any scenario and causing trouble to the user, thereby improving the comfort and reliability of the use of the present invention.

[0041] To go further, take the following example:

[0042] When the signal master detects a range beyond the preset threshold through the sensor mechanism (i.e., the user's eye distance, head tilt angle, light environment, eye time, etc. do not meet the standard threshold, such as the distance is less than 33cm, the waist is bent more than 25 degrees, the light is less than 200 lumens or more than 2000 lumens), the signal is transmitted and waits for the signal slave to receive it. After the signal master transmits the signal, it turns off the transmission after 2 seconds (continuous transmission will cause power consumption) and turns on the signal receiver at the same time. If it is within the signal range, the signal slave will receive the signal and send a wireless signal at the same time. After receiving the signal, the signal master will trigger the instruction to start the foul reminder mechanism to provide feedback reminders such as sound, vibration, and storage;

[0043] If the signal master and the signal slave are not within the Bluetooth signal range, the signal slave will not receive the signal transmitted by the signal master. The signal master will think that it is not within the prescribed myopia prevention and control conditions (for example, it may be lowering the head during physical education class at a distance). Then the signal master will turn off the signal receiver within a certain time range of 2 seconds (to reduce power consumption).

[0044] In order to reduce the possibility of false alarms, due to the attenuation principle of Bluetooth signals due to distance, for example, the Bluetooth signal normally emitted by the slave component is 100hz, and the signal received by the main component is 80-100hz, the main component can default to improper eye operation at a relatively close distance in the specified scene, which can trigger the feedback reminder mechanism and implement the feedback function; if the Bluetooth signal strength emitted by the slave component is 100hz (the number is only an example), due to the distance principle, the signal main component receives 50hz. Although the signal is received, the signal is weak. The signal main component can judge that it is a bending operation that is not next to the desk, and the signal main component still does not trigger the foul reminder mechanism.

[0045] In this embodiment, the signal master or / and the signal slave are communicatively connected to the cloud server or / and the smart terminal. Specifically, under the above settings, the signal master or / and the signal slave can transmit data to the cloud server and the smart terminal APP to save the data, and can use the cloud server or the smart terminal APP to output reports, which is also convenient for users to check at any time and easy to use.

[0046] Example 2

[0047] A myopia prevention and control system based on specific scenarios, such as Figure 2As shown, it includes a signal main component 1 and a signal slave component 2, the signal main component 1 is provided with a signal transmitter and / or a signal receiver, the signal slave component 2 is provided with a signal receiver and / or a signal transmitter, and the signal main component 1 is signal-connected with the signal slave component 2; a sensor mechanism is provided on the signal main component 1, and the signal main component 1 or / and the signal slave component 2 are provided with a feedback reminder mechanism; when the signal main component 1 is paired with the signal slave component 2, when the sensor mechanism detects that the user wearing the signal main component has improper eye use, a signal is sent to the feedback reminder mechanism to remind the user. Specifically, the system of the present invention is cleverly designed, the signal main component 1 is worn on the user, preferably, the signal main component 1 is worn on the user's head, and the signal slave component 2 is placed in a specific scene (such as a workbench, a study table, a computer table, etc.) as needed, and the signal transmission between the signal main component 1 and the signal slave component 2 is realized by pairing the signal transmitter with the signal receiver; when the user arrives at a specific scene equipped with the signal slave component 2, the signal main component 1 and the signal slave component 2 are located in the mutually paired signal range (that is, within the myopia prevention and control range), and the sensor mechanism can detect the user's eye distance, head tilt angle, light environment, eye use when the user is studying. Time, etc., when the user has irregular eye habits in a specific environment, the feedback reminder mechanism issues a prompt to give feedback to the user, reminding the user to adjust the posture in time, thereby achieving the effect of myopia prevention and control; the purpose of the present invention is to only monitor the user's irregular eye habits in a specific environment; when the signal range between the signal main component 1 and the signal slave component 2 exceeds the signal range of both, it is judged that the user is in a non-learning working mode, even if the user makes irregular movements, the feedback reminder mechanism will not be triggered, thereby avoiding the feedback reminder mechanism from sending prompts to the user in any scenario, causing trouble to the user, thereby improving the comfort and reliability of the use of the present invention.

[0048] In this embodiment, the sensor mechanism includes one or more of a distance sensor, a light environment sensor and an angle sensor. Specifically, under the above settings, the user's eye distance, head tilt angle, light environment, eye time, etc. during learning can be monitored and fed back.

[0049] The signal main component 1 may be a hunchback monitor, glasses, headphones, hats and other components that are convenient for users to wear, and the signal slave component 2 may be a separate component or a component such as a desk lamp installed on a study desk.

[0050] In this embodiment, the signal transmitter includes one or more of a Bluetooth signal transmitter, an infrared signal transmitter, a WIFI signal transmitter or an ultrasonic signal transmitter. The signal receiver includes one or more of a Bluetooth signal receiver, an infrared signal receiver, a WIFI signal receiver or an ultrasonic signal receiver. Specifically, under the above settings, signal pairing between the signal master 1 and the signal slave 2 can be achieved to achieve signal connection between the two.

[0051] In this embodiment, the feedback reminder mechanism includes one or more of a buzzer reminder mechanism, a voice broadcast reminder mechanism, a vibration reminder mechanism, and an audible and visual alarm reminder mechanism. Specifically, both the signal main component 1 and the signal slave component 2 can be provided with the feedback reminder mechanism, which can simultaneously play the reminder function. Of course, preferably, the signal main component 1 is provided with the feedback reminder mechanism, which can directly play the reminder function to the user; in addition, when the feedback reminder mechanism is only provided on the signal slave component 2, the weight of the signal main component 1 can be reduced to a certain extent, and the comfort of the user when wearing the signal main component 1 can be improved.

[0052] Among them, the buzzer reminder mechanism only makes a sound for reminder; the voice broadcast reminder mechanism can issue a voice reminder of the user's corresponding posture; the vibration reminder mechanism can give feedback to the user through vibration; the sound and light alarm reminder mechanism can emit light and sound at the same time to remind the user, so that the user can adjust the posture in time, thereby achieving the effect of myopia prevention and control.

[0053] In this embodiment, there are multiple signal slaves 2, and each signal slave 2 has the same ID address. Specifically, under the above settings, one signal master 1 can achieve signal connection with multiple signal slaves 2, and the signal slaves 2 are placed in different scenes to monitor the learning status and posture in different scenes; the signal master 1 can be paired with multiple signal slaves 2 to ensure the prevention and control effect of one signal master 1 in multiple different scenes, such as generating signal communication and feedback at home and school.

[0054] In this embodiment, a signal attenuation component is provided on the signal transmitter of the signal main component 1 or / and the signal receiver of the signal slave component 2. Specifically, under the action of the signal attenuation component, the signal strength emitted by the signal main component 1 or the signal strength received by the signal slave component 2 can be weakened, thereby reducing the signal range between the signal transmitter and the signal receiver, with the purpose of only monitoring the user's irregular eye habits in a specific environment; for example, the signal range is only within 2 meters of the study table (specific scene). If it exceeds the range, we assume that the user is playing normally or doing other work, and is not in a specific learning environment, so there is no need to prevent and control myopia.

[0055] Among them, the signal attenuation component can be a shielding layer (such as aluminum foil shielding paper) wrapped on the signal transmitter and / or the signal receiver; of course, the signal attenuation component can also be a signal attenuation circuit mounted on the signal transmitter and / or the signal receiver. Although this technology is a prior art, those skilled in the art have never considered this technical problem, so this design is one of the features of the present invention.

[0056] In this embodiment, a control circuit board A is provided on the signal main component 1, and an MCU processor B is provided on the control circuit board A. The MCU processor B is electrically connected to the sensor mechanism, the feedback reminder mechanism of the signal main component 1 and the signal transmitter respectively;

[0057] The signal main component 1 is detachably provided with a battery C, and the signal main component 1 is provided with a feedback reminder mechanism. The battery C is used to supply power to the sensor mechanism, the MCU processor B and the feedback reminder mechanism of the signal main component 1.

[0058] Of course, the signal main component 1 is also provided with a charging interface G electrically connected to the control circuit board A. The charging interface G can be used to charge the battery C, which is convenient for customers to use.

[0059] Specifically, under the above settings, the power supply, monitoring and feedback of the present invention are realized, and it is convenient to use.

[0060] In this embodiment, the control circuit board A is provided with a storage module and a wireless transmission module which are respectively electrically connected to the MCU processor B. Specifically, under the above settings, the storage module can monitor and save the user's actions when using the main component, that is, the user's eye distance, head tilt angle, light environment, eye use time, etc. when learning; at the same time, the data can also be uploaded to the cloud server or mobile terminal through the wireless transmission module, which is convenient for monitoring and viewing records; wherein the wireless transmission module can be a WIFI module, a Bluetooth module or an Internet of Things module; wherein after the wireless transmission module uploads the data to the mobile terminal, the mobile terminal APP can output data reports according to the previously stored data.

[0061] In this embodiment, the signal slave 2 is provided with a control circuit board D, and the control circuit board D is provided with an MCU processor E, and the MCU processor E is electrically connected to the signal receiver and the feedback reminder mechanism of the signal slave 2 respectively;

[0062] The signal slave 2 is detachably provided with a battery F. The signal slave 2 is provided with a feedback reminder mechanism. The battery F is used to supply power to the MCU processor E and the feedback reminder mechanism of the signal slave 2 .

[0063] Of course, the signal slave 2 is also provided with a charging interface H electrically connected to the control circuit board D, and the charging interface H can be used to charge the battery F.

[0064] Specifically, in the present invention, the feedback reminder mechanism can be provided on the signal main component 1 alone, or on the signal slave component 2 alone, or on both the signal slave component 2 and the signal main component 1 at the same time, so as to provide more intuitive feedback reminders and be flexible to use. Even if one of the feedback reminder mechanisms is damaged, the other feedback reminder mechanism can still work, and the structure is reliable.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A myopia prevention and control system according to specific scenarios, characterized in that: It comprises a signal master and a signal slave, wherein the signal master is provided with a signal transmitter and / or a signal receiver, the signal slave is provided with a signal receiver and / or a signal transmitter, and the signal master is connected to the signal slave by signal; the signal master is provided with a sensor mechanism, and the signal master or / and the signal slave are provided with a feedback reminder mechanism; The sensor mechanism detects the user's eye distance, head tilt angle, light environment and eye usage time when the user is learning; The signal master is worn by the user. When the user arrives at a specific scene equipped with the signal slave, the signal master is paired with the signal slave. When the sensor mechanism detects that the user wearing the signal master has irregular eye use, a signal is sent to the feedback reminder mechanism to remind the user. When the signal range between the signal master and the signal slave exceeds the signal range of both, it is determined that the user is in a non-learning working mode, and the feedback reminder mechanism will not be triggered even if the user performs irregular actions; When the sensor mechanism of the signal master is triggered, the signal master transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold; The signal slave continuously searches for the signal transmitted by the signal master. When the signal slave fails to receive the transmitted signal from the signal master, it is determined that the signal master and the signal slave are not within the control pairing range, and the signal receiver of the signal master is turned off. When the signal slave receives the transmitted signal from the signal master, it sends a signal back to the signal master. When the strength of the signal sent back by the signal slave received by the signal receiver of the signal master is greater than a preset threshold, the feedback reminder mechanism is activated, otherwise the feedback reminder mechanism is not activated; A signal attenuation component is provided on the signal transmitter of the signal master component and / or the signal receiver of the signal slave component; the signal attenuation component is used to weaken the signal strength emitted by the signal master component or weaken the signal strength received by the signal slave component.

2. A myopia prevention and control system according to a specific scenario according to claim 1, characterized in that: The signal main component is provided with a control circuit board A, and the control circuit board A is provided with an MCU processor B, and the MCU processor B is electrically connected to the sensor mechanism, the feedback reminder mechanism of the signal main component and the signal transmitter respectively; The signal main component is detachably provided with a battery C, and the signal main component is provided with a feedback reminder mechanism. The battery C is used to supply power to the sensor mechanism, the MCU processor B and the feedback reminder mechanism of the signal main component.

3. The myopia prevention and control system according to claim 1, characterized in that: The signal slave is provided with a control circuit board D, and the control circuit board D is provided with an MCU processor E, and the MCU processor E is electrically connected to the signal receiver and the feedback reminder mechanism of the signal slave respectively; The signal slave is detachably provided with a battery F, and the signal slave is provided with a feedback reminder mechanism. The battery F is used to supply power to the MCU processor E and the feedback reminder mechanism of the signal slave.

4. The myopia prevention and control system according to claim 2, characterized in that: The control circuit board A is provided with a storage module and a wireless transmission module which are electrically connected to the MCU processor B respectively.

5. A myopia prevention and control method according to the myopia prevention and control system according to a specific scenario according to claim 1, characterized in that: The following steps are involved: S1, when the sensor mechanism of the signal main component is triggered, the signal main component transmits a signal at a preset signal strength threshold and stops transmitting after a preset time threshold; S2, the signal slave continuously searches for the signal transmitted by the signal master. When the signal slave receives the signal transmitted by the signal master, it sends the signal back to the signal master. S3, when the signal receiver of the signal master receives the return signal from the signal slave, the feedback reminder mechanism is activated; In the step S1, after the signal main component stops transmitting the signal, the signal receiver of the signal main component is turned on at the same time; In step S2, when the signal slave component cannot receive the transmission signal of the signal master component, it is determined that the signal master component and the signal slave component are not within the control pairing range, and the signal receiver of the signal master component is turned off; In the step S3, when the strength of the signal sent back by the signal slave received by the signal master is greater than a preset threshold, the feedback reminder mechanism is started.

6. The method for preventing and controlling myopia according to a specific scenario according to claim 5, characterized in that: The signal master and / or the signal slave are communicatively connected to the cloud server and / or the smart terminal.

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