Low-power compatible full-spectrum intelligent goggles microcontroller and goggles

Abstract

The application relates to a low-power-consumption compatible full-spectrum intelligent goggle microcontroller and goggles, the microcontroller is used for controlling the discoloration of goggle lenses, the lenses comprise two polar plates and liquid crystal liquid arranged between the two polar plates, so that the lenses are equivalent to a response circuit, the microcontroller comprises a controller body, a driving main circuit is installed in the controller body, the driving main circuit comprises a delay circuit, a vibration circuit and a driving circuit, the driving circuit is connected with the delay circuit and the vibration circuit respectively, an alternating electric field for controlling the response circuit is generated through the vibration circuit and the driving circuit, a delay channel is formed through the delay circuit, and the response circuit is discharged in a delay time and the electric charge filled in the last period is discharged. Compared with the prior art, the application has the advantages of not needing to consume the electric charge in the power supply during short-circuit discharge, reducing power consumption and the like.

Description

Technical Field

[0001] This invention relates to the field of visual protection equipment technology, and in particular to a low-power compatible full-spectrum smart goggle microcontroller. Background Technology

[0002] Full-spectrum intelligent goggles have important applications in military, industrial, and daily life, protecting the eyes from strong light without affecting visibility. They effectively alleviate eye fatigue for drivers in various road conditions over extended periods, improving driving safety; prevent eye damage from strong sunlight in high-latitude snowfields; and alleviate discomfort caused by alternating light levels during flight, seawater scattering, and changes in ambient light. Drivers wearing full-spectrum intelligent goggles can drive in bright sunlight and enter parking lots or tunnels without sunlight without removing them, eliminating concerns about slow color changes causing inconvenience.

[0003] Currently, most traditional photochromic lenses rely on lens materials, which have a slow response time and a delayed color change. Under normal circumstances, conventional photochromic lenses take tens of seconds to complete the color-changing process. This means they cannot change color immediately in special environments or when quickly switching between sunlight and darkness.

[0004] Chinese patent CN206960800U discloses a smart photochromic goggle, which includes a main control chip and a solar cell. The main control chip controls the color change of the LCD lens based on the output voltage of the solar cell; the higher the output voltage, the deeper the color change of the LCD lens. However, since the liquid crystal requires an alternating electric field to drive it, a driving circuit is needed to provide the alternating voltage. Due to the size limitations and current-voltage characteristics of the solar cell, there are strict power consumption requirements for the entire system; otherwise, the output voltage may not reach the color-changing voltage of the liquid crystal, causing functional failure or failure to meet the light transmittance index. Due to the physical characteristics of the liquid crystal lens, it exhibits capacitive characteristics in an alternating electric field. Therefore, a reverse charging process occurs when the polarity at both ends changes. This polarity change requires the solar cell current to charge the negatively charged lens, neutralizing the original negative charge before establishing the current polarity, resulting in significant charge consumption. The aforementioned reverse charging refers to the process where the lens consumes the power supply's charge during the transition from a negative electric field to a zero electric field, relying on the charge in the battery to neutralize the charge in the capacitor, which is quite power-intensive. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the existing technology, such as reverse charging consumption during use, and to provide a low-power compatible full-spectrum smart goggle microcontroller and goggles.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A low-power compatible full-spectrum smart goggle microcontroller is disclosed for controlling the photochromic properties of goggle lenses. The lens comprises two electrodes and a liquid crystal disposed between the two electrodes, making the lens equivalent to a response circuit. The microcontroller includes a controller body, which houses a drive main circuit. The drive main circuit includes a delay circuit, an oscillation circuit, and a drive circuit. The drive circuit is connected to the delay circuit and the oscillation circuit, respectively. An alternating electric field controlling the response circuit is generated through the oscillation circuit and the drive circuit, and a delay channel is formed through the delay circuit. During the delay time, the response circuit discharges the charge charged in the previous cycle.

[0008] Furthermore, the driving circuit includes a logic gate chip, which includes a first input terminal A1, a second input terminal A2, a first output terminal Y1, and a second output terminal Y2. The first output terminal Y1 and the second output terminal Y2 are respectively connected to the response circuit. The delay circuit is connected between the first input terminal A1 and the second output terminal Y2. The oscillation circuit is connected between the second input terminal A2 and the second output terminal Y2.

[0009] Furthermore, the delay circuit includes a first resistor R1 and a first capacitor C1 connected in series. One end of the first resistor R1 is connected to the second output terminal Y2, and the other end is connected to the first input terminal A1. One end of the first capacitor C1 is connected to the first input terminal A1, and the other end is grounded.

[0010] Furthermore, the oscillation circuit includes a second resistor R2 and a second capacitor C2 connected in series. One end of the second resistor R2 is connected to the second input terminal A2, and the other end is connected to the second output terminal Y2. One end of the second capacitor C2 is connected to the second input terminal A2, and the other end is grounded.

[0011] Furthermore, the logic gate chip also includes a power supply terminal and a ground terminal connected to an external power supply.

[0012] Furthermore, the logic gate chip is an inverter.

[0013] Furthermore, a limiting circuit is also installed within the controller body, which is connected to the drive circuit.

[0014] The present invention also provides a full-spectrum smart goggles, comprising a low-power compatible full-spectrum smart goggle microcontroller, a lens assembly, a solar cell, and a goggle bracket as described above. The controller body of the microcontroller is connected to the solar cell and the lens assembly respectively. The microcontroller, the lens assembly, and the solar cell are all mounted on the goggle bracket.

[0015] Furthermore, the main drive circuit within the controller body is connected to the solar cell via a limiting circuit.

[0016] Furthermore, the lens assembly includes a first lens and a second lens, with the microcontroller and solar cell located between the first and second lenses.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The driving circuit of this invention is connected to a delay circuit to form a delay channel. Within a short time, the charge charged into the lens capacitor in the previous cycle is discharged, thus eliminating the need to consume power from the power supply during short-circuit discharge. Inserting a short-circuit discharge cycle within the capacitor's commutation charging cycle in the lens reduces the required charging charge by half, achieving a low-power effect.

[0019] 2. The present invention includes a limiting circuit that can limit the driving signal of the main driving circuit to prevent excessive light from causing the solar cell to output too high a voltage, making the lens completely black and thus invisible. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a full-spectrum smart goggle proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the drive main circuit of the present invention;

[0022] Figure 3 A schematic diagram applicable to the delay circuit proposed in this invention;

[0023] Figure 4 A schematic diagram of the oscillation circuit proposed in this invention;

[0024] Figure 5 A schematic diagram of the driving circuit proposed in this invention;

[0025] Figure 6 A simplified schematic diagram illustrating the operating principle of the full-spectrum intelligent goggle microcontroller proposed in this invention;

[0026] Figure 7 A schematic diagram of the overall circuit of a full-spectrum intelligent goggle microcontroller proposed in this invention;

[0027] Figure 8 This is a schematic diagram of the limiting circuit;

[0028] Figure 9 This is a schematic diagram of an existing circuit structure;

[0029] The attached figures are labeled as follows: 1. Controller body; 11. First drive output terminal; 12. Second drive output terminal; 2. Lens group; 21. First lens; 22. Second lens; 3. Drive unit; 31. Delay circuit; 32. Oscillation circuit; 33. Drive circuit; 5. Solar cell. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0031] Example 1

[0032] This embodiment provides a low-power compatible full-spectrum smart goggle microcontroller for controlling the goggle lens to change color proportionally according to the intensity of ambient light. The lens includes two electrodes and a liquid crystal disposed between the two electrodes, thus forming an equivalent capacitance structure. Furthermore, due to the impedance of the electrodes, the lens is equivalent to a response circuit (lens equivalent circuit), such as... Figure 6 As shown, the lens itself is a capacitive passive device. The intelligent goggle microcontroller includes a controller body 1, which houses a main drive circuit 3. The main drive circuit 3 includes a delay circuit 31, an oscillation circuit 32, and a drive circuit 33, as shown... Figure 2 As shown, the driving circuit 33 is connected to the delay circuit 31 and the oscillation circuit 32 respectively. The oscillation circuit 32 and the driving circuit 33 generate an alternating electric field to control the response circuit, and form a delay channel through the delay circuit 31. During the delay time, the charge charged into the response circuit in the previous cycle is discharged.

[0033] like Figure 5 As shown, the driving circuit includes a logic gate chip, which includes a first input terminal A1, a second input terminal A2, a first output terminal Y1, a second output terminal Y2, a power supply terminal connected to an external power supply, and a ground terminal. A delay circuit is connected between the first input terminal A1 and the second output terminal Y2, and an oscillation circuit is connected between the second input terminal A2 and the second output terminal Y2. The first output terminal Y1 and the second output terminal Y2 form the first drive output terminal 11 and the second drive output terminal 12 of the controller body 1. The first drive output terminal and the second drive output terminal are respectively connected to the two connection terminals of the response circuit.

[0034] like Figure 3 As shown, the delay circuit includes a first resistor R1 and a first capacitor C1 connected in series. One end of the first resistor R1 is connected to the second output terminal Y2, and the other end is connected to the first input terminal A1. One end of the first capacitor C1 is connected to the first input terminal A1, and the other end is connected to the ground terminal of the drive circuit. Figure 6 and Figure 7 As shown. Figure 4 As shown, the oscillation circuit includes a second resistor R2 and a second capacitor C2 connected in series. One end of the second resistor R2 is connected to the second input terminal A2, and the other end is connected to the second output terminal Y2. One end of the second capacitor C2 is connected to the second input terminal A2, and the other end is connected to the ground terminal of the drive circuit. Figure 6 and Figure 7 As shown, a delay channel is formed by the first resistor R1 and the first capacitor C1, and in conjunction with the second resistor R2 and the second capacitor C2, the charge charged in the lens capacitor in the previous cycle is discharged in a short time, so that no charge from the power supply is consumed during short-circuit discharge. This process solves the problem of reverse charging consumption during internal circuit use. Reverse charging refers to the process where the lens consumes charge from the power supply during the transition from a negative electric field to a zero electric field, requiring the battery charge to neutralize the charge in the capacitor, resulting in significant power consumption.

[0035] The logic gate chip is an inverter. In this embodiment, the logic gate chip used is the SN74AUP2G14 chip. The first resistor R1 provided in this embodiment has a resistance of 10MΩ, and the first capacitor C1 has a nominal capacitance of 3.3pF and a rated voltage of 50V. The second resistor R2 provided in this embodiment has a resistance of 20MΩ, and the second capacitor C2 has a nominal capacitance of 560pF, a rated voltage of 50V, and an allowable deviation of ±1%.

[0036] In another preferred embodiment, a limiting circuit is also installed within the controller body 1. This limiting circuit limits the drive signal in the main drive circuit to prevent excessively strong sunlight from causing the solar cells to output too high a voltage, resulting in the first and second lenses in the lens assembly becoming completely black and invisible. In this embodiment, the structure of the limiting circuit is as follows: Figure 8 As shown, the circuit includes a voltage regulator chip and peripheral circuitry. The output terminal of the voltage regulator chip is connected to the power supply terminal of the driver circuit 33. The voltage regulator chip can be a CE6232b18F chip.

[0037] like Figure 9 In the existing circuit shown, the capacitance in the lens is V AB When a positive voltage is applied, the output polarity changes, entering the second half-cycle V. AB The voltage needs to be changed to negative. Output driver A is connected to ground, and output driver B is connected to the power supply, causing the power supply to reverse charge the capacitor. The capacitor's transient state involves first neutralizing the internal charge through reverse charging by the power supply before establishing a new electric field state. This results in a waste of power supply charge. The microcontroller in this embodiment... Figure 9The difference lies in the inclusion of a delay circuit, which allows a short-circuit discharge cycle to be inserted into the circuit. This avoids the reverse charging process in the comparative embodiment, forming a new electric field polarity. The establishment of this new electric field polarity can reduce the charge requirement of the system power supply by half.

[0038] Example 2

[0039] like Figure 1 As shown, this embodiment provides a full-spectrum smart goggle, including a low-power compatible full-spectrum smart goggle microcontroller, a lens assembly, a solar cell, and a goggle bracket as described in Embodiment 1 above. The controller body of the microcontroller is connected to both the solar cell and the lens assembly. The microcontroller, lens assembly, and solar cell are all mounted on the goggle bracket. The lens assembly includes two identical first lenses 21 and second lenses 22, which are connected in parallel to the controller body, forming a circuit with the controller body 1. Both the first lenses 21 and second lenses 22 are liquid crystal lenses. The microcontroller and solar cell 5 are located between the first lenses 21 and second lenses 22.

[0040] This full-spectrum smart goggles utilizes solar cells 5 to provide current to the controller body. The lens assembly 2 serves as the output terminal of the controller body 1. The controller body 1 controls the lens assembly 2 to change color; the higher the output voltage, the deeper the color change of the first lens 21 and the second lens 22. Thus, the solar cells and circuit structure change the color of the first lens 21 and the second lens 22 after changes in light. Specifically, under sunlight, the solar cells 5 are photosensitive and convert light energy into electrical energy to power the controller body 1. When the voltage delivered by the solar cells 5 exceeds the operating voltage threshold of the controller body 1, the controller body 1 controls the first lens 21 and the second lens 22 to change color. In the absence of sunlight, the controller body 1 does not operate, and the first lens 21 and the second lens 22 retain their original colors.

[0041] The solar cell 5 has two functions: 1. It serves as the input power source for the drive circuit, providing energy to the drive circuit; 2. When the load is fixed, before reaching the maximum output threshold, the solar cell can change the output voltage according to the intensity of sunlight. The stronger the sunlight, the higher the output voltage.

[0042] In a preferred embodiment, a limiting circuit is further provided between the solar cell 5 and the main drive circuit of the controller body. The positive pin of the limiting circuit is connected to the positive output terminal of the solar cell 5, and the grounding pin is connected to the negative output terminal of the solar cell 5. Figure 8 As shown, this is to prevent excessive sunlight. If the voltage output by the solar cell is too high, the first and second lenses in the lens assembly will become completely black and invisible. The limiting circuit can effectively limit the drive signal of the main drive circuit.

[0043] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A low-power compatible full-spectrum smart goggle microcontroller for controlling the photochromic properties of goggle lenses, the lens comprising two electrodes and a liquid crystal disposed between the two electrodes, such that the lens is equivalent to a response circuit, characterized in that, The microcontroller includes a chip body, in which a driving main circuit is installed. The driving main circuit includes a delay circuit, an oscillation circuit, and a driving circuit. The driving circuit is connected to the delay circuit and the oscillation circuit respectively. The oscillation circuit and the driving circuit generate an alternating electric field to control the response circuit, and form a delay channel through the delay circuit. During the delay time, the response circuit discharges the charge charged in the previous cycle. The driving circuit includes a logic gate chip, which includes a first input terminal A1, a second input terminal A2, a first output terminal Y1, and a second output terminal Y2. The first output terminal Y1 and the second output terminal Y2 are respectively connected to the response circuit. The delay circuit is connected between the first input terminal A1 and the second output terminal Y2. The oscillation circuit is connected between the second input terminal A2 and the second output terminal Y2.

2. The low-power compatible full-spectrum smart goggle microcontroller according to claim 1, characterized in that, The delay circuit includes a first resistor R1 and a first capacitor C1 connected in series. One end of the first resistor R1 is connected to the second output terminal Y2, and the other end is connected to the first input terminal A1. One end of the first capacitor C1 is connected to the first input terminal A1, and the other end is grounded.

3. The low-power compatible full-spectrum smart goggle microcontroller according to claim 1, characterized in that, The oscillation circuit includes a second resistor R2 and a second capacitor C2 connected in series. One end of the second resistor R2 is connected to the second input terminal A2, and the other end is connected to the second output terminal Y2. One end of the second capacitor C2 is connected to the second input terminal A2, and the other end is grounded.

4. The low-power compatible full-spectrum smart goggle microcontroller according to claim 1, characterized in that, The logic gate chip also includes a power supply terminal and a ground terminal connected to an external power source.

5. The low-power compatible full-spectrum smart goggle microcontroller according to claim 1, characterized in that, The logic gate chip is an inverter.

6. The low-power compatible full-spectrum smart goggle microcontroller according to claim 1, characterized in that, The chip body also contains a limiting circuit, which is connected to the driving circuit.

7. A full-spectrum smart goggles, characterized in that, The device includes a low-power compatible full-spectrum smart goggle microcontroller, a lens assembly, a solar panel, and a goggle bracket as described in any one of claims 1. The chip body of the microcontroller is connected to the solar panel and the lens assembly, and the microcontroller, the lens assembly, and the solar panel are all mounted on the goggle bracket.

8. The full-spectrum smart goggles according to claim 7, characterized in that, The main driving circuit inside the chip is connected to the solar panel through a limiting circuit.

9. The full-spectrum smart goggles according to claim 7, characterized in that, The lens assembly includes a first lens and a second lens, with the microcontroller and solar panel located between the first and second lenses.

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