Myopia prevention and control circuit and intelligent lamp

Abstract

The utility model discloses a myopia prevention and control circuit and an intelligent lamp, wherein the myopia prevention and control circuit includes a main control chip MCU, a timer circuit, an LED matrix light source, an LED constant current drive circuit, an LED control circuit, a switch control circuit, a power supply circuit and a Wi-Fi module; the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit, the power supply circuit and the Wi-Fi module are all connected to the main control chip MCU; the main control chip MCU receives the control signal sent by the Wi-Fi module and the timing signal of the timer circuit, and triggers the switch control circuit according to preset conditions, thereby controlling the change of the closed or open state of the LED matrix light source. When in use, the lamp management rules can be set according to the eye use of children, and pre-set in the main control chip MCU, and the intelligent lamp automatically realizes myopia prevention and control according to the preset rules.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, and in particular to a myopia prevention and control circuit and an intelligent lamp applying the myopia prevention and control circuit. Background Art

[0002] On the one hand, up to now, lighting control technology is generally achieved by manually adjusting brightness, color temperature, timed on / off, etc., which requires users to operate by themselves. For primary and secondary school students, it is difficult to play a real role in myopia prevention and control. On the other hand, epidemiological surveys show that the incidence of myopia is increasing year by year around the world. Data show that there are currently 1.4 billion people suffering from myopia in the world, the incidence of myopia is increasing, and the age of onset is getting younger and younger. Therefore, the design of smart lamps with myopia prevention and control circuits has gradually become a hot research topic.

[0003] Because children need to read books, write and use electronic devices at close range for longer and longer periods of time, the pupil will continue to contract to adapt to the close light, and the ciliary muscle will continue to contract, making the lens thicker, thereby changing the angle of light refraction, so that distant objects can be presented more clearly on the retina. If this state lasts too long, it will cause fatigue of the pupil sphincter, which will lead to dilation of the pupil, increasing the amount of light entering the eye, and excessive light will stimulate the retina, causing excessive growth of the eyeball. The lens may become too thick, causing the angle of light refraction to change, causing objects to form blurred images on the retina, which is the manifestation of myopia. The current design of smart lamps for myopia prevention and control circuits is mainly studied in the fields of full-spectrum lighting and blue light overflow prevention, but there is no design plan for the supervision of children's healthy eye use. Utility Model Content

[0004] A brief overview of embodiments of the present invention is given below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that the following overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0005] According to one aspect of the present application, a myopia prevention and control circuit is provided, including a main control chip MCU, a timer circuit, an LED matrix light source, an LED constant current drive circuit, an LED control circuit, a switch control circuit, a power supply circuit and a Wi-Fi module; the power supply circuit supplies power to the main control chip MCU, the timer circuit, the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit and the Wi-Fi module, and the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit, the power supply circuit and the Wi-Fi module are all connected to the main control chip MCU; the main control chip MCU receives the control signal sent by the Wi-Fi module and the timing signal of the timer circuit, and triggers the switch control circuit according to preset conditions, thereby controlling the change of the closed or open state of the LED matrix light source. The above-mentioned triggering of the state change of the LED light according to the preset conditions is an existing conventional LED control technology.

[0006] As an implementation scheme, the LED control circuit includes an LED brightness adjustment circuit and an LED color temperature control circuit, which are used to adjust and control the brightness and color temperature of the LED matrix light source. The main control chip MCU realizes the brightness change and color temperature change of the LED matrix light source by adjusting the different duty cycles of the two PWM inputs.

[0007] As an implementation scheme, the myopia prevention and control circuit also includes an interface circuit, which is connected to the main control chip MCU, and the LED constant current drive circuit is connected to the interface circuit.

[0008] As an implementation scheme, the myopia prevention and control circuit further includes a clock circuit, which is connected to the main control chip MCU. The main control chip MCU receives the clock signal of the clock circuit and triggers the switch control circuit according to a preset rule, thereby controlling the change of the off or on state of the LED matrix light source. For example, the main control chip MCU is preset with a night mode and a day mode, and the night time and the day time are obtained through the clock circuit, and the main control chip MCU enters the corresponding mode according to the time of the clock circuit.

[0009] As an implementation scheme, the switch control circuit is implemented using an electronic switch, which can be a transistor (transistor, thyristor, MOS tube, etc.) or a relay circuit.

[0010] As an implementation scheme, the Wi-Fi module is implemented using a low-power embedded Wi-Fi module with model number CBU-IPEX.

[0011] In actual application, the main control chip MCU can also set the lamp status change rules for different time periods according to the signals of the timer circuit and the clock circuit. The change of lamp status can be the change of lamp switch, the change of color temperature and brightness, or the adjustment of different lighting modes.

[0012] According to another aspect of the present application, a smart lamp is provided, which includes a housing and a myopia prevention and control circuit disposed in the housing; the housing includes a lamp holder, a lamp holder connector, a lamp holder aluminum tube and a lamp holder connected in sequence, the LED matrix light source is installed in the lamp holder, the power circuit is installed in the lamp holder, the LED matrix light source and the power circuit are electrically connected through an electronic lead, and the upper part of the electronic lead is fixed to the lamp holder connector through a fixing member. The lamp holder is rotatably mounted on the lamp holder aluminum tube through the lamp holder connector.

[0013] The fixing part includes a first iron gasket, a spring and a second iron gasket. When in use, the electronic lead is sequentially inserted into the first iron gasket, the spring and the second iron gasket, and then the installed electronic lead is inserted into the lamp holder connector, and the electronic lead is fixed inside the lamp holder. In this way, when the lamp holder is rotated upward by 90 degrees, the electronic lead can be stretched and pulled in the aluminum tube of the lamp holder through the expansion and contraction of the spring, thereby preventing the electronic lead from getting stuck and broken when the lamp holder is rotated upward.

[0014] Furthermore, the fixing member also includes an electronic lead retaining ring, and the electronic lead retaining ring is arranged on the outer side of the second iron gasket.

[0015] This application has the following advantages through the above scheme:

[0016] 1. Its myopia prevention and control circuit can enable the lamp to automatically prevent and control myopia according to preset rules through the settings of Wi-Fi module, timer circuit and clock circuit. For example, the main control chip MCU pre-sets multiple working modes and sets the trigger conditions corresponding to different working modes. Then the user can send a lamp state change control signal through the Wi-Fi module. The main control chip MCU receives the control signal and changes the state of the lamp through the switch control circuit; or the main control chip MCU controls the switch control circuit to change the state of the lamp according to the pre-set time length rules (for example, the timed 50-minute light breathing prompts a 10-second rest). When in use, the lamp management rules can be set according to the children's eye conditions and pre-set in the main control chip MCU. Then the smart lamp automatically realizes myopia prevention and control according to the preset rules. The lamp management rule setting and pre-setting in the main control chip MCU are all existing common technologies.

[0017] 2. Its myopia prevention and control circuit can be set through the Wi-Fi module, timer circuit and clock circuit, so that the lamp can automatically prevent and control myopia according to preset rules. For example, the set healthy light formula is called according to the power-on time; the "anti-myopia healthy light protection mode" is automatically executed when the power is turned on: 50 minutes * 3 sections of focus + 10 seconds * 2 sections of eye relaxation: after a cycle (150 minutes + 20 seconds) is automatically executed, it enters the forced shutdown state to remind the user to take a proper rest and reduce eye fatigue; in the automatic execution mode, the light wake-up mode can be manually started, and the color temperature and brightness are automatically adjusted to the optimal state to promote the rapid alertness of the human body, and it is enforced for 30 seconds; in the automatic execution mode, the light soothing mode can also be manually started, and the color temperature and brightness automatically cycle between the minimum and maximum to promote the expansion of the pupil of the eye and play the role of eye massage, and it is enforced for 5 cycles; in the automatic execution mode, you can also set the user's favorite color temperature and brightness and execute it.

[0018] 3. In terms of the structure of the lamp, this structure can hide the electronic lead inside the product parts, which is different from the electronic lead on the market that passes through the outside of the product, making the product more beautiful, and ensuring that when the lamp head is rotated 90 degrees upward, the electronic lead can be stretched and pulled in the aluminum tube of the lamp head through the spring expansion and contraction, preventing the electronic lead from getting stuck and broken when the lamp head is rotated upward. This structure is simple to install, reliable, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be better understood by referring to the following description in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used in all drawings to represent the same or similar components. The accompanying drawings together with the following detailed description are included in and form a part of this specification, and are used to further illustrate the preferred embodiments of the present invention and explain the principles and advantages of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a principle block diagram of the myopia prevention and control circuit of the utility model;

[0021] Figure 2 This is a schematic diagram of the main control chip MCU of the myopia prevention and control circuit of the utility model;

[0022] Figure 3 It is a schematic diagram of the LED control circuit part of the myopia prevention and control circuit of the utility model;

[0023] Figure 4 It is a partial schematic diagram of the LED constant current drive circuit of the myopia prevention and control circuit of the utility model;

[0024] Figure 5 Schematic diagram of the power supply circuit of the myopia prevention and control circuit in this embodiment;

[0025] Figure 6 This is a schematic diagram of the LED matrix light source portion of the myopia prevention and control circuit in this embodiment;

[0026] Figure 7 is a cross-sectional view of the connection between the lamp holder, the lamp holder connector and the lamp holder aluminum tube in the smart lamp in this embodiment;

[0027] Figure 8 Schematic diagram of the connection between the lamp holder, the lamp holder connector and the lamp holder aluminum tube of the smart lamp in this embodiment;

[0028] Fig. 9 Schematic diagram of the whole intelligent lamp in this embodiment (the lamp head is bent upward by 90°). DETAILED DESCRIPTION

[0029] Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the purpose of clarity, the representation and description of components and processes that are not related to the present invention and are known to those of ordinary skill in the art are omitted in the drawings and descriptions.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] As a specific embodiment, a myopia prevention and control circuit of the utility model is shown in FIG. Figure 1-Figure 6, including a main control chip MCU, a timer circuit, an LED matrix light source, an LED constant current drive circuit, an LED control circuit, a switch control circuit, a power supply circuit and a Wi-Fi module; the power supply circuit supplies power to the main control chip MCU, the timer circuit, the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit and the Wi-Fi module, and the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit, the power supply circuit and the Wi-Fi module are all connected to the main control chip MCU; the main control chip MCU receives the control signal sent by the Wi-Fi module and the timing signal of the timer circuit, and triggers the switch control circuit according to preset conditions, thereby controlling the change of the off or on state of the LED matrix light source. The above-mentioned triggering of the state change of the LED light according to preset conditions is a conventional technology for existing LED control.

[0033] The present application enables the lamp to automatically prevent and control myopia according to preset rules through the setting of Wi-Fi modules and timer circuits. For example, the main control chip MCU pre-sets multiple working modes and sets trigger conditions corresponding to different working modes. The user can send a lamp state change control signal through the Wi-Fi module. The main control chip MCU receives the control signal and changes the state of the lamp through the switch control circuit; or the main control chip MCU controls the switch control circuit to change the state of the lamp according to a pre-set duration rule (for example, a 50-minute light breathing reminder with a 10-second break).

[0034] As one embodiment, the LED control circuit includes an LED brightness adjustment circuit and an LED color temperature control circuit, which are used to adjust and control the brightness and color temperature of the LED matrix light source. The main control chip MCU realizes the brightness change and color temperature change of the LED matrix light source by adjusting the different duty cycles of the two PWM inputs.

[0035] As one embodiment, the myopia prevention and control circuit also includes an interface circuit, which is connected to the main control chip MCU, and the LED constant current drive circuit is connected to the interface circuit.

[0036] As one embodiment, the myopia prevention and control circuit also includes a clock circuit, which is connected to the main control chip MCU. The main control chip MCU receives the clock signal of the clock circuit and triggers the switch control circuit according to a preset rule, thereby controlling the change of the off or on state of the LED matrix light source. For example, the main control chip MCU is preset with a night mode and a day mode, and the night time and the day time are obtained through the clock circuit. The main control chip MCU enters the corresponding mode according to the time of the clock circuit.

[0037] As one embodiment, the switch control circuit is implemented by an electronic switch, and the electronic switch can be a transistor (transistor, thyristor, MOS tube, etc.) circuit or a relay circuit.

[0038] As one of the embodiments, the Wi-Fi module is implemented using a low-power embedded Wi-Fi module of model CBU-IPEX.

[0039] As an implementation scheme, the LED constant current driving circuit can be implemented by using different driving circuits. For example, one of the driving circuits can be implemented by using a driving chip, such as a driving chip of model TM1650.

[0040] In actual application, the main control chip MCU can also set the lamp status change rules for different time periods according to the signals of the timer circuit and the clock circuit. The change of lamp status can be the change of lamp switch, the change of color temperature and brightness, or the adjustment of different lighting modes.

[0041] As one embodiment, the utility model further provides an intelligent lamp, which includes a housing and a myopia prevention and control circuit disposed in the housing, wherein the myopia prevention and control circuit is implemented by the myopia prevention and control circuit implemented in the above embodiment. Figure 7-Figure 9 The housing includes a lamp holder 1, a lamp holder connector 2, a lamp holder aluminum tube 3 and a lamp holder 6 which are connected in sequence. The LED matrix light source is installed in the lamp holder, and the power circuit is installed in the lamp holder. The LED matrix light source and the power circuit are electrically connected through an electronic lead 4. The upper part of the electronic lead is fixed in the lamp holder connector through a fixing member. The lamp holder is rotatably mounted on the lamp holder aluminum tube through the lamp holder connector.

[0042] Specifically, the fixing part includes a first iron gasket 51, a spring 52 and a second iron gasket 53. When in use, the electronic lead is sequentially inserted into the first iron gasket, the spring and the second iron gasket, and then the installed electronic lead is inserted into the lamp holder connector, and the electronic lead is fixed inside the lamp holder. In this way, when the lamp holder is rotated upward by 90 degrees, the electronic lead can be stretched and pulled in the aluminum tube of the lamp holder through the expansion and contraction of the spring, thereby preventing the electronic lead from getting stuck and broken when the lamp holder is rotated upward.

[0043] In addition, in this embodiment, the fixing member further includes an electronic lead retaining ring 54 for limiting position, and the electronic lead retaining ring 54 is arranged outside the second iron gasket 53 .

[0044] The above lamp structure can hide the electronic lead inside the product parts, which is different from the electronic lead on the market that passes through the outside of the product, making the product more beautiful, and ensuring that when the lamp head is rotated upward by 90 degrees, the electronic lead can be stretched and pulled in the aluminum tube of the lamp head through the spring expansion and contraction, preventing the electronic lead from getting stuck and broken when the lamp head is rotated upward. This structure is simple to install, reliable and low in cost.

[0045] In the above description of specific embodiments of the present invention, the features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or replace features in other embodiments.

[0046] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0047] Although the utility model has been disclosed above through the description of the specific embodiments of the utility model, it should be understood that all the above embodiments and examples are exemplary rather than restrictive. Those skilled in the art can design various modifications, improvements or equivalents of the utility model within the spirit and scope of the attached claims. These modifications, improvements or equivalents should also be considered to be included in the protection scope of the utility model.

Claims

1. A myopia prevention and control circuit, characterized in that: It includes a main control chip MCU, a timer circuit, an LED matrix light source, an LED constant current drive circuit, an LED control circuit, a switch control circuit, a power supply circuit and a Wi-Fi module; the power supply circuit supplies power to the main control chip MCU, the timer circuit, the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit and the Wi-Fi module, and the LED matrix light source, the LED constant current drive circuit, the LED control circuit, the switch control circuit, the power supply circuit and the Wi-Fi module are all connected to the main control chip MCU; the main control chip MCU receives the control signal sent by the Wi-Fi module and the timing signal of the timer circuit, and triggers the switch control circuit according to preset conditions, thereby controlling the change of the closed or open state of the LED matrix light source.

2. The myopia prevention and control circuit according to claim 1, characterized in that: The LED control circuit includes an LED brightness adjustment circuit and an LED color temperature control circuit, which are used to adjust and control the brightness and color temperature of the LED matrix light source.

3. The myopia prevention and control circuit according to claim 1, characterized in that: The myopia prevention and control circuit also includes an interface circuit, which is connected to the main control chip MCU, and the LED constant current drive circuit is connected to the interface circuit.

4. The myopia prevention and control circuit according to claim 1, characterized in that: The myopia prevention and control circuit also includes a clock circuit, which is connected to the main control chip MCU. The main control chip MCU receives a clock signal from the clock circuit and triggers a switch control circuit according to preset rules, thereby controlling the change of the off or on state of the LED matrix light source.

5. The myopia prevention and control circuit according to claim 1, characterized in that: The switch control circuit is implemented by an electronic switch, which is a transistor or a relay circuit.

6. The myopia prevention and control circuit according to claim 1, characterized in that: The Wi-Fi module is implemented using a low-power embedded Wi-Fi module with model number CBU-IPEX.

7. An intelligent lamp, characterized in that: It comprises a shell and a myopia prevention and control circuit arranged in the shell; the myopia prevention and control circuit is implemented by the myopia prevention and control circuit described in any one of claims 1 to 6; the shell comprises a lamp holder, a lamp holder connector, a lamp holder aluminum tube and a lamp holder connected in sequence, the LED matrix light source is installed in the lamp holder, the power supply circuit is installed in the lamp holder, the LED matrix light source and the power supply circuit are electrically connected through an electronic lead, and the upper part of the electronic lead is fixed in the lamp holder connector through a fixing part.

8. The intelligent lamp according to claim 7, characterized in that: The fixing member comprises a first iron washer, a spring and a second iron washer.

9. The intelligent lamp according to claim 8, characterized in that: The fixing member also includes an electronic lead retaining ring, and the electronic lead retaining ring is arranged on the outer side of the second iron gasket.

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