Screen eye protection device based on ultrasonic distance measurement and intelligent atomization technology

Abstract

The invention discloses a screen eye protection device based on ultrasonic ranging and intelligent atomization technology, and relates to the technical field of health electronic equipment.The screen eye protection device comprises an inverted-L-shaped screen protection film and a single chip microcomputer, the inverted-L-shaped screen protection film comprises a top cross beam, a plastic plate and an atomization film, and the bottom of the top cross beam is fixedly connected with the plastic plate; an atomization film is attached to one side of the plastic plate, an ultrasonic ranging module is embedded in the front face of the top cross beam, and the back face of the ultrasonic ranging module is fixedly connected with a Dupont line. According to the screen eye protection device based on the ultrasonic distance measurement and the intelligent atomization technology, accurate detection and real-time distance monitoring of the distance between a screen user and a screen are achieved by means of ultrasonic distance measurement and single-chip microcomputer control, and when it is detected that the user is too close to the screen, a screen protection film is atomized by means of the atomization film technology, so that the screen eye protection effect is improved. Therefore, the user is forcibly restrained to be away from the screen, the safe distance is kept, and the myopia risk is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of health electronic devices, and particularly to a screen eye protection device based on ultrasonic ranging and intelligent atomization technology. Background Art

[0002] With the popularization of electronic devices and the increase in screen usage time, the vision health problems of teenagers and adults have become increasingly prominent. Data from the World Health Organization shows that the global myopia rate continues to climb. Especially among teenagers, myopia has become a major public health challenge. Visual fatigue and poor sitting postures caused by long-term close use of electronic screens are important inducements for myopia. Currently, the mainstream eye protection solutions on the market mainly focus on passive protection or software reminder mechanisms, such as anti-blue light films, screen brightness adjustment software, and timing reminder tools. However, anti-blue light technology can only reduce the stimulation of light with specific wavelengths on the eyes and cannot fundamentally correct the user's sitting posture or control the eye use distance; while the software reminder function is easily ignored or actively closed by users, lacking a mandatory intervention effect, resulting in limited actual eye protection effects.

[0003] For example, the patent CN205566439U in the prior art discloses an eye protection device based on a distance sensor, which triggers a sound alarm by detecting the distance between the user and the screen. However, it relies on the user's self-awareness and cannot form an effective physical restraint. The prior arts have not solved the core problem that users unconsciously approach the screen due to visual fatigue, and lack the ability to directly intervene in the screen content, resulting in poor actual application effects. Therefore, there is an urgent need for an innovative device that can real-time monitor the eye use distance and force the user to maintain a safe distance through physical feedback to make up for the deficiencies of the prior art and effectively reduce the risk of myopia.

[0004] However, the prior arts similar to the above patent still have the following disadvantages:

[0005] 1) Limitations of passive protection: Anti-blue light films, eye protection software, etc. can only reduce light stimulation or provide software reminders, and cannot actively intervene in the user's sitting posture or force the user to maintain a safe eye use distance. They rely on the user's subjective cooperation, and the actual effect is limited.

[0006] 2) Failure of the reminder mechanism: Reminder methods such as sound alarms or screen pop-ups are easily ignored or actively closed by users, lacking compulsoriness and being difficult to form continuous behavior correction.

[0007] 3) Device complexity and cost: Some smart glasses or wearable devices require additional hardware support (such as gyroscopes, cameras), which have problems such as uncomfortable wearing, short battery life, and high costs, restricting their popularity.

[0008] Therefore, it is urgent to improve this shortcoming. The present invention studies and improves the existing structure and deficiencies, and provides a screen eye protection device based on ultrasonic ranging and intelligent atomization technology. Summary of the Invention

[0009] The purpose of the present invention is to provide a screen eye protection device based on ultrasonic ranging and intelligent atomization technology to solve the problems raised in the above background technology.

[0010] To achieve the above purpose, the present invention provides the following technical solution: A screen eye protection device based on ultrasonic ranging and intelligent atomization technology, including an inverted L-shaped screen protection film and a single-chip microcomputer. The inverted L-shaped screen protection film includes a top crossbar, a plastic plate, and an atomization film. The bottom of the top crossbar is fixedly connected to the plastic plate, and an atomization film is attached to one side of the plastic plate. The front of the top crossbar is fitted with an ultrasonic ranging module, and a Dupont wire is fixedly connected to the back of the ultrasonic ranging module. The single-chip microcomputer is connected to the left side of the top crossbar, and a type-C charging interface is provided on the left side wall of the single-chip microcomputer, and a power-on device is provided on the left side wall of the single-chip microcomputer.

[0011] Further, the plastic plate is vertically fixed to the bottom of the top crossbar, and the front of the top crossbar is flush with the side of the atomization film away from the plastic plate.

[0012] Further, the ultrasonic ranging module is used to measure the distance between the screen and the user, and transmit the measurement data to the single-chip microcomputer. The ultrasonic ranging module includes an ultrasonic transmitting device and an ultrasonic receiving device.

[0013] Further, the measurement process of the ultrasonic ranging module is as follows:

[0014] Transmit ultrasonic waves: The ultrasonic transmitting device emits ultrasonic signals of a certain frequency;

[0015] Signal propagation and reflection: The ultrasonic signal propagates in the air and is reflected back after encountering the user;

[0016] Receive ultrasonic waves: The ultrasonic receiving device receives the reflected ultrasonic signal;

[0017] Time difference measurement: The internal time measurement circuit of the module records the time difference between the emission and reception of the ultrasonic signal;

[0018] Distance calculation: According to the time difference and the propagation speed of ultrasonic waves in the air, calculate the distance between the screen and the user.

[0019] Further, the single-chip microcomputer selects the STM32F103C8T6 single-chip microcomputer, which is used to receive the data of the ultrasonic ranging module and judge whether the distance between the user and the device is greater than 20 centimeters. The control logic of the judgment result is as follows:

[0020] If the distance is greater than 20 cm, the power supply device energizes the atomization film, making the atomization film present a transparent state;

[0021] If the distance is less than 20 cm, the power supply device cuts off the power supply to the atomization film, making the atomization film present an atomized and opaque state.

[0022] Furthermore, when the atomization film is energized, the liquid crystal molecules are arranged orderly, and light can pass through smoothly, presenting a transparent state, making the screen content visible; when the power is cut off, the liquid crystal molecules are arranged disorderly, and the light is scattered when passing through, presenting an atomized and opaque state, making the screen content difficult to see clearly.

[0023] Furthermore, the ultrasonic ranging module is connected to the single-chip microcomputer through Dupont wires, and the single-chip microcomputer is connected to the power supply device through a type-C charging interface.

[0024] Furthermore, the power supply device provides working power for the single-chip microcomputer, the ultrasonic ranging module and the atomization film through a type-C charging interface, and the type-C charging interface can be connected to the TYPE-C port of various electronic devices to realize the functions of power supply and data transmission.

[0025] Furthermore, one end of the Dupont wire is plugged into the single-chip microcomputer, and the other end of the Dupont wire penetrates through the back of the top crossbeam and extends into the interior of the top crossbeam, and the other end of the Dupont wire is plugged into the ultrasonic ranging module.

[0026] Furthermore, the plastic plate is made of a transparent, wear-resistant and flexible material, which can adapt to the screens of various electronic devices.

[0027] The present invention provides a screen eye protection device based on ultrasonic ranging and intelligent atomization technology, which has the following beneficial effects:

[0028] 1. The present invention can accurately prevent myopia. Most of the existing technologies relieve visual fatigue from the screen display level and cannot accurately control the eye use distance. This device uses ultrasonic ranging and single-chip microcomputer control to achieve accurate detection of the distance between the screen user and the screen, real-time monitoring of the distance, and with the atomization film technology, when it detects that the user is too close to the screen, it atomizes the screen protector, making the screen content difficult to see clearly, so as to force the user to stay away from the screen and maintain a safe distance, effectively reducing the risk of myopia.

[0029] 2. The present invention has the advantages of convenient and general use. Common eye protection products have single functions and poor adaptability. This device is powered and data-transmitted through a type-C charging interface. The TYPE-C interface can be connected to the TYPE-C ports of various electronic devices to achieve the plug-and-play function, facilitating users to use this protection device on different devices. Moreover, it does not rely on additional power devices, improving the convenience and applicability of the product. It can easily adapt to a variety of electronic devices, with convenient installation, simple operation, and no interference with normal use, widely meeting the needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a front view structural schematic diagram of a screen eye protection device based on ultrasonic ranging and intelligent atomization technology of the present invention;

[0031] Figure 2 is a split schematic diagram of the DuPont wire - single-chip microcomputer structure of a screen eye protection device based on ultrasonic ranging and intelligent atomization technology of the present invention;

[0032] Figure 3 is a Figure 2 magnified schematic diagram of the structure at A in a screen eye protection device based on ultrasonic ranging and intelligent atomization technology of the present invention;

[0033] Figure 4 is a schematic diagram of the single-chip microcomputer processing logic of a screen eye protection device based on ultrasonic ranging and intelligent atomization technology of the present invention;

[0034] Figure 5 is a schematic diagram of the measurement process of the ultrasonic ranging module of a screen eye protection device based on ultrasonic ranging and intelligent atomization technology of the present invention.

[0035] In the figure: 1. Inverted L-shaped screen protection film; 101. Top cross beam; 102. Plastic plate; 103. Atomization film; 2. Ultrasonic ranging module; 201. Ultrasonic transmitting device; 202. Ultrasonic receiving device; 3. DuPont wire; 4. Single-chip microcomputer; 5. Type-C charging interface; 6. Energizing device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following further describes in detail the embodiments of the present invention with reference to the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] Such as Figures 1-5As shown in the figure, an eye protection device for a screen based on ultrasonic ranging and intelligent atomization technology includes an inverted L-shaped screen protector 1 and a single-chip microcomputer 4. The inverted L-shaped screen protector 1 includes a top crossbar 101, a plastic plate 102, and an atomization film 103. The bottom of the top crossbar 101 is fixedly connected to the plastic plate 102, and an atomization film 103 is attached to one side of the plastic plate 102. The plastic plate 102 is vertically fixed to the bottom of the top crossbar 101, and the front of the top crossbar 101 is flush with the side of the atomization film 103 away from the plastic plate 102. The plastic plate 102 is made of a transparent, wear-resistant, and flexible material, which can adapt to the screens of various electronic devices. An ultrasonic ranging module 2 is embedded and installed on the front of the top crossbar 101, and a Dupont wire 3 is fixedly connected to the back of the ultrasonic ranging module 2. The single-chip microcomputer 4 is connected to the left side of the top crossbar 101. One end of the Dupont wire 3 is plugged into the single-chip microcomputer 4, and the other end of the Dupont wire 3 passes through the back of the top crossbar 101 and extends into the interior of the top crossbar 101, and the other end of the Dupont wire 3 is plugged into the ultrasonic ranging module 2. At the same time, a type-C charging interface 5 is provided on the left side wall of the single-chip microcomputer 4, and a power-on device 6 is provided on the left side wall of the single-chip microcomputer 4.

[0038] In this embodiment, the ultrasonic ranging module 2 is connected to the single-chip microcomputer 4 through the Dupont wire 3, and the single-chip microcomputer 4 is connected to the power supply device through the type-C charging interface 5; the power supply device provides working power for the single-chip microcomputer 4, the ultrasonic ranging module 2, and the atomization film 103 through the type-C charging interface 5, providing stable power support for the entire system. The type-C charging interface 5 can be connected to the TYPE-C ports of various electronic devices to achieve power supply and data transmission functions. This connection method can not only provide stable working power for the single-chip microcomputer 4, the ultrasonic ranging module 2, and the atomization film 103, but also has good versatility. The TYPE-C interface can be connected to the TYPE-C ports of various electronic devices such as computers, tablets, mobile phones, etc. to achieve plug-and-play functions, which is convenient for users to use this protection device on different devices and does not rely on additional power supply devices, improving the convenience and applicability of the product.

[0039] In this embodiment, the ultrasonic ranging module 2 is used to measure the distance between the screen and the user and transmit the measurement data to the single-chip microcomputer 4. The ultrasonic ranging module 2 includes an ultrasonic transmitting device 201 and an ultrasonic receiving device 202; among them, the measurement process of the ultrasonic ranging module 2 is as follows:

[0040] Transmit ultrasonic waves: The ultrasonic transmitting device 201 emits ultrasonic wave signals of a certain frequency;

[0041] Signal propagation and reflection: The ultrasonic wave signals propagate in the air and are reflected back after encountering the user;

[0042] Receiving ultrasonic waves: The ultrasonic wave receiving device 202 receives the reflected ultrasonic wave signal;

[0043] Time difference measurement: The internal time measurement circuit in the module records the time difference between the emission and reception of the ultrasonic wave signal;

[0044] Distance calculation: Based on the time difference and the propagation speed of ultrasonic waves in the air, the distance between the screen and the user is calculated.

[0045] In this embodiment, the single-chip microcomputer 4 selects the STM32F103C8T6 single-chip microcomputer, which is used to receive the data of the ultrasonic ranging module 2, and judge whether the distance between the user and the device is greater than 20 cm. The control logic of the judgment result is as follows:

[0046] If the distance is greater than 20 cm, the energizing device 6 energizes the atomization film 103 to make the atomization film 103 present a transparent state;

[0047] If the distance is less than 20 cm, the energizing device 6 cuts off the power supply to the atomization film 103 to make the atomization film 103 present an atomized opaque state.

[0048] Among them, when the atomization film 103 is energized, the liquid crystal molecules are arranged in an orderly manner, and light can pass through smoothly, presenting a transparent state, making the screen content visible; when the power is off, the liquid crystal molecules are arranged disorderly, and the light is scattered when passing through, presenting an atomized opaque state, making the screen content difficult to see clearly, so as to restrict the user from approaching the screen.

[0049] In summary, the working principle of the screen eye protection device based on ultrasonic ranging and intelligent atomization technology: The ultrasonic ranging module 2 uses the reflection principle of ultrasonic waves to measure the distance. During the working process, the ultrasonic ranging module 2 emits ultrasonic wave signals in the direction of the user. When the signal encounters the obstacle user, it will be reflected back. The time difference between the time when the module receives the reflected signal and the time when the signal is emitted, combined with the propagation speed of ultrasonic waves in the air, can calculate the distance between the screen and the user. And the calculated distance data is transmitted to the single-chip microcomputer 4, that is, the STM32F103C8T6 single-chip microcomputer through the Dupont wire 3. The STM32F103C8T6 single-chip microcomputer, as the core control unit, receives the data of the ultrasonic ranging module 2, and controls the energized or de-energized state of the atomization film 103 according to the distance judgment result, and restricts the user's eye use behavior through the state change of the atomization film 103.

[0050] Embodiments of the present invention are provided for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, and to enable others of ordinary skill in the art to understand the invention for designing various embodiments with various modifications suited to particular purposes.

Claims

1. A screen eye protection device based on ultrasonic ranging and intelligent atomization technology, comprising an inverted L-shaped screen protection film (1) and a single-chip microcomputer (4), characterized in that: The inverted L-shaped screen protective film (1) comprises a top crossbeam (101), a plastic plate (102) and an atomizing film (103), wherein the bottom of the top crossbeam (101) is fixedly connected to the plastic plate (102), and the atomizing film (103) is attached to one side of the plastic plate (102), an ultrasonic distance measuring module (2) is embedded and installed on the front of the top crossbeam (101), and a DuPont line (3) is fixedly connected to the back of the ultrasonic distance measuring module (2), the single chip computer (4) is connected to the left side of the top crossbeam (101), and a type-C charging interface (5) is provided on the left side wall of the single chip computer (4), and a power supply device (6) is provided on the left side wall of the single chip computer (4).

2. According to claim 1, a screen eye protection device based on ultrasonic ranging and intelligent atomization technology is characterized in that: The plastic plate (102) is vertically fixed to the bottom of the top crossbeam (101), and the front side of the top crossbeam (101) is flush with the side of the atomizing film (103) away from the plastic plate (102).

3. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 1 is characterized in that: The ultrasonic distance measuring module (2) is used to measure the distance between the screen and the user and transmit the measurement data to the single chip computer (4), and the ultrasonic distance measuring module (2) comprises an ultrasonic transmitting device (201) and an ultrasonic receiving device (202).

4. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 2, characterized in that: The measurement process of the ultrasonic distance measuring module (2) is as follows: Emitting ultrasonic waves: the ultrasonic wave transmitting device (201) emits ultrasonic waves signals of a certain frequency; Signal propagation and reflection: Ultrasonic signals propagate in the air and are reflected back after encountering the user; Receiving ultrasonic waves: The ultrasonic receiving device (202) receives the reflected ultrasonic wave signal; Time difference measurement: The time measurement circuit inside the module records the time difference between the transmission and reception of the ultrasonic signal; Distance calculation: Calculate the distance between the screen and the user based on the time difference and the propagation speed of ultrasound in the air.

5. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 1, characterized in that: The single chip computer (4) is used to receive data from the ultrasonic distance measuring module (2) and determine whether the distance between the user and the device is greater than 20 centimeters, and the control logic of the determination result is as follows: If the distance is greater than 20 cm, the power supply device (6) supplies power to the atomizing film (103), so that the atomizing film (103) becomes transparent; If the distance is less than 20 centimeters, the power supply device (6) cuts off the power to the atomizing film (103), so that the atomizing film (103) presents an atomized and opaque state.

6. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 5, characterized in that: When the atomizing film (103) is powered on, the liquid crystal molecules are arranged in an orderly manner, presenting a transparent state, so that the screen content is visible; when the power is turned off, the liquid crystal molecules are arranged in a disordered manner, and light is scattered when passing through, presenting an atomized and opaque state, making the screen content difficult to see clearly.

7. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 1, characterized in that: The ultrasonic distance measuring module (2) is connected to the single-chip computer (4) via a DuPont line (3), and the single-chip computer (4) is connected to the power supply device via a type-C charging interface (5).

8. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 7, characterized in that: The power supply device provides working power to the single-chip computer (4), the ultrasonic distance measurement module (2) and the atomizing film (103) via a type-C charging interface (5), and the type-C charging interface (5) can be connected to a type-C port of various electronic devices to realize power supply and data transmission functions.

9. The screen eye protection device based on ultrasonic ranging and intelligent atomization technology according to claim 7, characterized in that: One end of the DuPont line (3) is plugged into the single-chip computer (4), and the other end of the DuPont line (3) passes through the back of the top crossbeam (101) and extends to the inside of the top crossbeam (101), and the other end of the DuPont line (3) is plugged into the ultrasonic distance measurement module (2).

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