WO2023093166A1 - 一种眼镜调节系统、眼镜以及眼镜的调节方法 - Google Patents

一种眼镜调节系统、眼镜以及眼镜的调节方法 Download PDF

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Publication number
WO2023093166A1
WO2023093166A1 PCT/CN2022/115043 CN2022115043W WO2023093166A1 WO 2023093166 A1 WO2023093166 A1 WO 2023093166A1 CN 2022115043 W CN2022115043 W CN 2022115043W WO 2023093166 A1 WO2023093166 A1 WO 2023093166A1
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Prior art keywords
shape memory
glasses
memory alloy
controller
adjustment
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PCT/CN2022/115043
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English (en)
French (fr)
Inventor
梁波
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Goertek Inc
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Goertek Inc
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type

Definitions

  • the present application relates to the field of electronic control, in particular to a glasses adjustment system, glasses and a method for adjusting the glasses.
  • the interpupillary distance is the distance between the eyes, which is very important for the adjustment of the distance between the lenses of the glasses.
  • augmented reality Augmented Reality
  • VR Virtual Reality
  • the optical machine can follow the movement of the lens and adjust to provide the best experience for the target audience.
  • Using the wrong interpupillary distance setting in AR/VR can cause blurred vision and eye strain.
  • the main solution for adjusting the lenses of the glasses is to use a stepping motor.
  • the specific solution is that the stepping motor is connected to the lens. After the interpupillary distance of the target object is obtained, the stepping motor is used to drive the lens to move to match the interpupillary distance of the target object.
  • the purpose of this application is to provide an adjustment system for glasses, glasses and an adjustment method for glasses.
  • the adjustment system for glasses that can adjust lenses is lighter and thinner to improve portability, reduce noise during adjustment to improve the user experience of the target object, and improve the performance of the lenses. control accuracy, and reduce system power consumption.
  • the application provides a glasses adjustment system, including: shape memory alloy, drive circuit, controller, adjuster;
  • the adjuster is connected with the controller, and is used to acquire the adjustment parameters of the lens and send the adjustment parameters to the controller;
  • the controller is connected to the driving circuit, and is used to control the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters;
  • the driving circuit is connected to the shape memory alloy, and is used to flow the generated current through the shape memory alloy;
  • the shape memory alloy is connected to the lens, and the adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy.
  • the first ends of the two shape memory alloys are respectively connected to one of the lenses, and the second ends of the two shape memory alloys are respectively connected to one of the driving circuits.
  • the drive circuit includes: a first MOS transistor
  • the gate of the first MOS transistor is connected to the first GPIO pin of the controller, the source of the first MOS transistor is grounded, and the shape memory alloy is arranged between the drain of the first MOS transistor and the power supply. between;
  • the controller determines the duty cycle corresponding to the current and/or the conduction time according to the adjustment parameter, and controls the operation of the first MOS tube according to the duty cycle and/or the conduction time.
  • the alloy temperature detection circuit for detecting the temperature of the shape memory alloy
  • the alloy temperature detection circuit includes: a first thermistor, a first voltage dividing resistor, and a second MOS tube;
  • the gate of the second MOS transistor is connected to the second GPIO pin of the controller, the source of the second MOS transistor is grounded, and the first voltage dividing resistor and the first thermistor are connected in series to the Between the drain of the second MOS tube and the power supply, the first ADC pin of the controller is connected between the first voltage dividing resistor and the first thermistor;
  • the first ADC pin is used to detect the voltage at the middle position between the first voltage dividing resistor and the first thermistor;
  • the first thermistor is attached to the shape memory alloy
  • the controller is further configured to correct the corresponding relationship between the adjustment parameter and the magnitude of the current and/or the energization time according to the corresponding deformation of the shape memory alloy at different temperatures.
  • the ambient temperature detection circuit for detecting the ambient temperature inside the glasses;
  • the ambient temperature detection circuit includes: a second thermistor, a second voltage dividing resistor, and a third MOS tube;
  • the gate of the third MOS transistor is connected to the third GPIO pin of the controller, the source of the third MOS transistor is grounded, and the second voltage dividing resistor and the second thermistor are connected in series to the Between the drain of the third MOS tube and the power supply, the second ADC pin of the controller is connected between the second voltage dividing resistor and the second thermistor;
  • the second ADC pin is used to detect the voltage at the intermediate position between the second voltage dividing resistor and the second thermistor
  • the second thermistor is installed on the glasses, and the controller is further configured to correct the current magnitude and/or the power-on time according to the ambient temperature.
  • a storage module configured to store the adjustment parameters corresponding to different target objects
  • An identification module configured to identify different target objects to obtain identification results corresponding to the target objects
  • the recognition module is connected to the controller so as to send the recognition result to the controller;
  • the controller is also connected to the storage module, and is configured to acquire the adjustment parameter corresponding to the target object in the storage module according to the identification result.
  • the adjuster includes buttons arranged on the temples of the glasses.
  • the present application further provides glasses, including the above-mentioned glasses adjustment system.
  • the glasses are AR/VR glasses, and the optomechanics of the AR/VR glasses are fixedly connected to the lenses so as to move synchronously.
  • the present application also provides an adjustment method for glasses, which is applied to a glasses adjustment system including a shape memory alloy, a drive circuit, a controller, and an adjuster, wherein the adjuster is connected to the controller, and the The controller is connected with the drive circuit; the drive circuit is connected with the shape memory alloy, and is used to flow the generated current through the shape memory alloy; the shape memory alloy is connected with the lens, and the The adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy; the method includes:
  • the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit are controlled according to the adjustment parameters, so as to adjust the position of the mirror.
  • the glasses adjustment system includes a shape memory alloy, a controller, a regulator and a drive circuit.
  • the controller is respectively connected to the regulator and the drive circuit.
  • the controller controls the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters.
  • the drive circuit is connected to the shape memory alloy and generates current to flow through the shape memory alloy.
  • the shape memory alloy is connected to the lens. When the shape memory alloy stretches, the connected lens will move along the stretching direction. Because the shape memory alloy has a high resistance, when the current passes through the shape memory alloy, heat will be generated to change its temperature. The shape memory alloy will have different shapes at different temperatures, and the lens will also be in different positions.
  • the glasses adjustment system of the present application can control the movement of the lenses by controlling the current in the driving circuit, so as to control the lenses of the glasses to adapt to different interpupillary distances.
  • the glasses adjustment system uses shape memory alloy to move the lens, which is smaller in size than the stepping motor, and the structural modules of the system are lighter and thinner, making it more convenient to use glasses;
  • the system uses In the process, the temperature change of the shape memory alloy is controlled by electric current, and the temperature change brings about a corresponding change in the grain structure of the shape memory alloy, thereby bringing about a change in shape.
  • the use of shape memory alloy can achieve Micron-level control accuracy, compared with the millimeter-level control accuracy of the stepping motor, the control accuracy of the glasses adjustment system is significantly improved;
  • the use of shape memory alloys only requires tens of milliamps of current, and the power consumption is lower than that of stepper motors. The intake motor is lower.
  • the spectacles provided by the present application include the above-mentioned spectacles adjustment system, and the effect is the same as above.
  • the present application also provides a method for adjusting spectacles, which corresponds to the above-mentioned spectacles adjusting system, and thus has the same beneficial effects as the above-mentioned spectacles adjusting system.
  • FIG. 1 is a structural diagram of a glasses adjustment system provided by an embodiment of the present application
  • Fig. 2 is a schematic diagram of the installation position of a glasses adjustment system provided by the embodiment of the present application;
  • Fig. 3 is a schematic diagram of the installation position of another glasses adjustment system provided by the embodiment of the present application.
  • FIG. 4 is a schematic diagram of a circuit structure of a glasses adjustment system provided by an embodiment of the present application.
  • FIG. 5 is a flow chart of a method for adjusting glasses provided by an embodiment of the present application.
  • the core of the present application is to provide a glasses adjustment system, glasses and a method for adjusting the glasses.
  • Interpupillary distance refers to the distance between the eyes.
  • the average interpupillary distance of human beings is 64mm, and the range of interpupillary distance is between 54mm and 72mm.
  • Figure 1 is a structural diagram of a glasses adjustment system provided by the embodiment of the present application; as shown in the figure, the glasses adjustment system includes: a shape memory alloy 13, a drive circuit 12, a controller 11, and an adjuster 10; wherein the adjuster 10 Connected with the controller 11 for obtaining the adjustment parameters of the lens and sending the adjustment parameters to the controller 11; the controller 11 is connected with the drive circuit 12 for controlling the current of the drive circuit 12 and/or the drive circuit 12 according to the adjustment parameters The power-on time; the drive circuit 12 is connected with the shape memory alloy 13 for passing the generated current through the shape memory alloy 13;
  • the lens of the glasses, the shape memory alloy 13, the driving circuit 12, the controller 11, the quantity and the type of the regulator 10 are not limited, and their installation positions and the connection methods between them are not required, so that the ideal can be achieved. effect.
  • the lenses of glasses are usually in pairs, but not limited to two, there can be multiple pairs of lenses and each pair of lenses can be connected by a shape memory alloy 13, or each lens can be connected by a shape memory alloy 13 Alloy 13.
  • the adjuster 10 is connected with the controller 11 to obtain the adjustment parameters of the lens and send the adjustment parameters to the controller 11, wherein the adjuster 10 can be a button, and the target object can press the button to adjust the position of the lens.
  • the target object can adjust the position of the lens according to his own usage habits, so as to improve the comfort when using the glasses;
  • the adjuster 10 can also be a remote control, and the target object can operate on the remote control, which can avoid pressing The uncomfortable feeling caused by squeezing the glasses when pressing the button;
  • the adjuster 10 can also be a voice controller 11, which acquires the adjustment parameters by receiving the voice command of the target object. After the controller 11 receives the adjustment parameter, it can obtain the adjustment intention of the target object to the lens from the adjustment parameter and perform related control.
  • the controller 11 is also connected to the drive circuit 12, and is used to control the size and current of the drive circuit 12 according to the adjustment parameter. /Or the energization time of drive circuit 12, can only control the size of drive circuit 12 electric current or only control the energization time of drive circuit 12, also can control the size of drive circuit 12 current and the energization time of drive circuit 12 to reach corresponding control Effect.
  • the magnitude of the current in the drive circuit 12 can be controlled by controlling the duty ratio of the current, for example, using a MOS tube to control the duty ratio of the current. Different duty ratios will generate different magnitudes of current; the magnitude of the current can also be controlled in other ways.
  • the drive circuit 12 is connected to the shape memory alloy 13, and is used to flow the generated current through the shape memory alloy 13.
  • the drive circuit 12 and the shape memory alloy 13 are connected according to the actual situation.
  • the drive circuit 12 can be connected to the end of the shape memory alloy 13 to give the whole
  • the shape memory alloy strip 13 is energized, and the middle position of the shape memory alloy 13 can also be connected to energize some positions, as long as the deformation can be generated to drive the lens to move.
  • Controlling the current size or energization time of the drive circuit 12 controls the current size and energization time flowing through the shape memory alloy 13;
  • the temperature of the shape-memory alloy 13 can be controlled according to the power-on time; the change in temperature brings about a corresponding change in the grain structure of the shape-memory alloy 13 , thereby bringing about a change in shape.
  • the shape memory alloy 13 is also connected to the lens, and the adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy 13. For example, if a piece of shape memory alloy 13 is installed between two lenses, then when the shape memory alloy 13 is stretched , the two lenses will move to both sides, and the distance between the two lenses will increase accordingly. In addition, after adjusting the position of the lens, due to heat transfer, the temperature of the shape memory alloy 13 will gradually approach the ambient temperature, and the lens may continue to move, so it may be necessary to continue to supply power to the shape memory alloy 13 to maintain the shape memory alloy. 13 temperature, there is no specific requirement for the magnitude of the current and the power-on time.
  • FIG 2 is a schematic diagram of the installation position of a glasses adjustment system provided by the embodiment of the present application.
  • the installation positions of the various components given in the figure are only a solution in the embodiment of the application, and do not affect other solutions of the embodiment of the application. limit.
  • the glasses comprise two lenses, the controller 11 is installed in the middle of the two lenses, the drive circuit 12 is installed at the controller 11, and the drive circuit 12 is also connected to one end of the shape memory alloy 13 so that the shape memory alloy 13 is powered, and the other end of the shape memory alloy 13 is connected to the lens, so that the lens moves when the shape memory alloy 13 expands and contracts.
  • the glasses adjustment system provided in the embodiment of the present application includes a shape memory alloy, a controller, an adjuster, and a drive circuit.
  • the controller is respectively connected to the adjuster and the drive circuit.
  • the adjuster will obtain the adjustment parameters of the lens and send the adjustment parameters to the controller.
  • the controller controls the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters.
  • the drive circuit is connected to the shape memory alloy and generates current to flow through the shape memory alloy.
  • the shape memory alloy is connected to the lens. When the shape memory alloy stretches, the connected lens will move along the stretching direction. Because the shape memory alloy has a high resistance, when the current passes through the shape memory alloy, heat will be generated to change its temperature.
  • the shape memory alloy will have different shapes at different temperatures, and the lens will also be in different positions.
  • the glasses adjustment system of the present application can control the movement of the lenses by controlling the current in the driving circuit, so as to control the lenses of the glasses to adapt to different interpupillary distances.
  • the glasses adjustment system uses shape memory alloy to move the lens, which is smaller in size than the stepping motor, and the structural modules of the system are lighter and thinner, making it more convenient to use glasses;
  • the system uses In the process, the temperature change of the shape memory alloy is controlled by electric current, and the temperature change brings about a corresponding change in the grain structure of the shape memory alloy, thereby bringing about a change in shape.
  • the use of shape memory alloy can achieve Micron-level control accuracy, compared with the millimeter-level control accuracy of the stepping motor, the control accuracy of the glasses adjustment system is significantly improved;
  • the use of shape memory alloys only requires tens of milliamps of current, and the power consumption is lower than that of stepper motors. The intake motor is lower.
  • control logic corresponding to different installation schemes of shape memory alloys is different.
  • Several installation schemes and corresponding control logics are listed below. The following are two lenses as an example, the control of multiple lenses and two lenses The logic is similar, and the following schemes all use shape memory alloys that will elongate when their temperature rises.
  • the shape memory alloy is installed between two lenses, which can be a shape memory alloy It can also be multiple, but each shape memory alloy is connected to two lenses at the same time, and controls the movement of the two lenses at the same time; when the target object wants to increase the distance between the two lenses, it needs to send a corresponding command to the regulator, and the regulator will After obtaining the adjustment parameters corresponding to increasing the distance between the two lenses, the controller controls the drive circuit to increase the current or increase the power-on time after receiving the relevant adjustment parameters, and the current flowing through the shape memory alloy changes accordingly, and the shape memory alloy will It stretches and drives the two lenses to move to both sides, and the distance between the two lenses increases.
  • the second situation is also that the shape memory alloy is installed between two lenses, but each shape memory alloy is connected to a lens separately, that is, the two shape memory alloys control the movement of the two lenses respectively; when the target object wants to increase the size of the two lenses
  • the controller controls the drive circuit to increase the current or increase the power-on time.
  • the current flowing through the two shape memory alloys also changes accordingly, and the two shape memory alloys will elongate, and drive the two lenses to move to the two sides respectively, and the distance between the two lenses will increase.
  • the third situation is that the shape memory alloy is installed on both sides of the glasses, and each shape memory alloy is connected to a lens separately, that is, the two shape memory alloys control the movement of the two lenses respectively; but when the target object wants to increase the distance between the two lenses
  • the shape memory alloy needs to be shortened, that is, the current of the driving circuit needs to be reduced or the power-on time of the driving circuit needs to be reduced.
  • each lens is connected with multiple shape memory alloys, and the shape memory alloy can be installed between two lenses or on both sides of the two lenses; multiple shape memory alloys control a lens, which can balance the force and make the lens When moving horizontally, the force is more uniform and the movement is more stable; in practical applications, if a shape memory alloy is connected to a lens, then a guide rail can be added to the shape memory alloy to achieve the effect of increasing the smoothness of lens movement . It should be noted that the above four solutions only list some situations of the glasses adjustment system of the present application, and do not limit the system. In addition, if the system uses a shape memory alloy that shortens when its temperature rises, the corresponding control logic should be the opposite of the above situation.
  • the first ends of the two shape-memory alloys are respectively connected to a lens.
  • the specific connection method is not limited.
  • a protrusion can be provided on both lenses, and the shape-memory alloy can be embedded in this protrusion; alloy welded together.
  • the second ends of the two shape memory alloys are respectively connected to a driving circuit, and the connection method is not limited.
  • Each piece of shape memory alloy can individually control a lens, and the movement of the corresponding lens can be controlled by controlling the expansion and contraction of the shape memory alloy.
  • the solution provided in this embodiment can separately control the shape memory alloys on the left and right sides to realize the adjustment of different distances between the two lenses, which can bring a better user experience to the target object than the unified adjustment of the two lenses.
  • the driving circuit includes: a first MOS transistor, the gate of the first MOS transistor is connected to the first GPIO pin of the controller, The source of the first MOS transistor is grounded, and the shape memory alloy is arranged between the drain of the first MOS transistor and the power supply; the controller determines the duty ratio and/or the conduction time corresponding to the current according to the adjustment parameters, and according to the duty ratio and /or the power-on time controls the operation of the first MOS tube, thereby controlling the magnitude and time of the current flowing through the shape memory alloy.
  • the number of drive circuits is not required here.
  • one drive circuit when there is only one shape memory alloy, one drive circuit can supply power to one shape memory alloy; in the second case, when there are multiple shape memory alloys, it can be One drive circuit supplies power to all shape memory alloys, that is, multiple shape memory alloys are arranged between the drain of a first MOS transistor and the power supply; the third case is that multiple drive circuits are connected to multiple shape memory alloys, each Each driving circuit supplies power to a shape memory alloy separately.
  • two driving circuits can be used, and the two driving circuits respectively supply power to the two shape memory alloys separately, so as to To achieve a better control effect is one of the third situations mentioned in this embodiment.
  • Fig. 3 is a schematic diagram of the installation position of another glasses adjustment system provided by the embodiment of the application.
  • the installation method shown in the figure is only one form in the embodiment of the application, and does not limit other forms in the embodiment of the application.
  • the figure includes two shape memory alloys 13, a controller 11, and a first thermistor 14.
  • the two first thermistors 14 are respectively attached to the shape memory alloy 13, and the controller 11 is located on the two shape memory alloys 13. middle.
  • the solution provided by this embodiment can directly control the duty cycle of the current through the first MOS tube, and then control the magnitude of the current; at the same time, it can also control the conduction time of the current.
  • This solution does not need to add additional components for controlling the magnitude of the current, which reduces the cost, and at the same time can better complete the above-mentioned control effect.
  • the system also includes: alloy temperature detection circuit, used to detect the temperature of shape memory alloy; alloy temperature detection circuit Including: the first thermistor, the first voltage dividing resistor, and the second MOS tube; the gate of the second MOS tube is connected to the second GPIO pin of the controller, the source of the second MOS tube is grounded, and the first voltage dividing resistor
  • the first thermistor is connected in series between the drain of the second MOS tube and the power supply, and the first ADC pin of the controller is connected between the first voltage dividing resistor and the first thermistor; wherein the first ADC pin is used for It is used to detect the voltage between the first voltage dividing resistor and the first thermistor; the first thermistor is attached to the shape memory alloy, and when the temperature of the shape memory alloy changes, the temperature of the first thermistor will also change with the
  • the first thermistor is a sensor resistor whose resistance value changes with temperature
  • the first ADC pin is used to measure the voltage between the first voltage dividing resistor and the first thermistor.
  • the voltage between the sensitive resistors can calculate the resistance value of the first thermistor at this time, and the temperature of the first thermistor at this time can be calculated according to the corresponding relationship between the temperature of the first thermistor and the resistance value, that is, the shape The temperature of memory alloy.
  • the controller can look up the temperature-deformation parameter table to correct the corresponding relationship between the adjustment parameter and the magnitude of the current and/or the power-on time, so as to perform more accurate control.
  • alloy temperature detection circuits there are no restrictions on the number of alloy temperature detection circuits and the types of thermistors. There can be one or more alloy temperature detection circuits. In the first case, there is only one shape memory alloy, and there is only one alloy temperature A detection circuit: using a first thermistor attached to the shape memory alloy to measure the temperature of the shape memory alloy. The second situation is that there are many shape memory alloys, and there is only one alloy temperature detection circuit; use a first thermistor to measure the temperature of one of the shape memory alloys, although the temperature-deformation parameter of each shape memory alloy cannot be obtained table, but the influence of environmental factors can be eliminated according to the temperature-deformation parameter table of the shape memory alloy.
  • the third case is that there are multiple shape memory alloys and multiple alloy temperature detection circuits; a first thermistor is attached to each shape memory alloy to measure the temperature and deformation of each shape memory alloy separately, In this way, the temperature-deformation parameter table of each shape memory alloy can be obtained, thereby realizing precise control.
  • the first thermistor may be a positive temperature coefficient thermistor or a negative temperature coefficient thermistor, which is not required here.
  • the embodiment of the present application provides a detection system for shape memory alloys, which can be controlled separately according to the characteristics of different shape memory alloys, so that the lenses can be adjusted more precisely.
  • the ambient temperature will affect the temperature of the shape memory alloy. If the ambient temperature is too low or too high, the current output according to the normal ambient temperature and the set power-on time cannot make the shape memory alloy reach the ideal temperature. For example, when the ambient temperature When it is lower, the temperature reached by the shape memory alloy through a certain time and a certain magnitude of current is lower than the normal ambient temperature, and it is necessary to increase the current or increase the energization time.
  • the glasses adjustment system also includes: an ambient temperature detection circuit for detecting the ambient temperature inside the glasses;
  • the ambient temperature detection circuit includes: a second thermistor, a second voltage dividing resistor, and a third MOS tube; the gate of the third MOS tube
  • the pole is connected to the third GPIO pin of the controller, the source of the third MOS transistor is grounded, the second voltage dividing resistor and the second thermistor are connected in series between the drain of the third MOS transistor and the power supply, and the second voltage dividing resistor
  • the second ADC pin of the controller is connected to the second thermistor; wherein the second ADC pin is used to detect the voltage in the middle of the second voltage dividing resistor and the second thermistor; the second thermistor is installed on On the glasses, the controller is also used to correct the magnitude of the current current and/or power-on time according to the ambient temperature.
  • the type and installation location of the second thermistor are not limited here.
  • the second thermistor may be a positive temperature coefficient thermistor or a negative temperature coefficient thermistor.
  • the second thermistor can be installed independently on any position of the glasses, but try not to stick it to the skin so as not to affect the measured ambient temperature by the temperature of the human body; the second thermistor can also be packaged with the controller and installed in the middle of the left and right lenses . There is no requirement on the number of ambient temperature detection circuits, and generally one ambient temperature detection circuit is used for measurement.
  • the second ADC pin is used to detect the voltage at the middle position between the second voltage dividing resistor and the second thermistor; the second thermistor is a sensor resistor whose resistance value changes with temperature.
  • the second ADC pin is used to measure the voltage between the second voltage dividing resistor and the second thermistor.
  • the voltage between the sensitive resistors can calculate the resistance value of the second thermistor at this time, and the temperature of the second thermistor at this time can be calculated according to the corresponding relationship between the temperature and resistance value of the second thermistor, that is, the environment temperature.
  • the controller corrects the magnitude of the current current and/or the power-on time according to the ambient temperature. If the ambient temperature is low, the current or the power-on time can be increased; if the ambient temperature is high, the current can be reduced or the power-on time can be reduced.
  • the ambient temperature detection circuit provided in this embodiment can assist the controller to control the temperature of the shape memory alloy, and the controller can correct the magnitude of the current current and/or power-on time according to the detected ambient temperature to improve control accuracy.
  • Fig. 4 is a schematic diagram of the circuit structure of a glasses adjustment system provided by the embodiment of the application; the circuit shown in the figure is only one of the methods provided by the application, and the application also includes other implementation methods.
  • the glasses adjustment system includes two shape memory alloys 13, and the figure also includes two drive circuits 12, two alloy temperature detection circuits, and one ambient temperature detection circuit, which can realize the functions in the above embodiments.
  • the controller 11 controls these circuits and measures the voltage at a specified position in the circuit through pins.
  • Both drive circuits 12 have a first MOS transistor Q1, which are the first MOS transistor Q1 on the left and the first MOS transistor on the right.
  • the controller 11 respectively controls the two first MOS transistors Q1 through the two first GPIO pins, the drains of the two first MOS transistors Q1 are respectively connected to one end of the two shape memory alloys 13, and the two shape memory alloys 13 The other end is connected to the power supply, and the two first MOS transistors Q1 respectively control the current to flow through the two shape memory alloys 13 .
  • Both alloy temperature detection circuits include a first voltage dividing resistor R1, a first thermistor 14, and a second MOS transistor Q2; the two first voltage dividing resistors R1 include the first voltage dividing resistor on the left R1 and the first voltage dividing resistor R1 on the right side, the two second MOS transistors include the second MOS transistor Q2 on the left side and the second MOS transistor Q2 on the right side, the drains of the two second MOS transistors Q2 are respectively connected to two One end of the first thermistor 14, the other ends of the two first thermistors 14 are respectively connected to the two first ADC pins of the controller 11 and one end of the two first voltage dividing resistors R1, the two first The other end of the voltage dividing resistor R1 is connected to a 3V power supply, and the first thermistor 14 is attached to the shape memory alloy 13 .
  • the ambient temperature detection circuit includes a third MOS transistor Q3, the drain of the third MOS transistor Q3 is connected to one end of the second thermistor 15, and the other end of the second thermistor 15 is connected to the second ADC pin of the controller 11 and One end of the second voltage dividing resistor R2 and the other end of the second voltage dividing resistor R2 are connected to a 3V power supply.
  • the glasses adjustment system also includes: a storage module for storing adjustment parameters corresponding to different target objects; an identification module for identifying different target objects to obtain the corresponding identification results of the target object; the identification module is connected with the controller for sending The recognition result is sent to the controller; the controller is also connected to the storage module, and is used to obtain the adjustment parameters corresponding to the target object in the storage module according to the recognition result.
  • the target object can choose to store the adjustment parameters corresponding to the position of the lens adjusted by himself in the storage module; the glasses are equipped with an identification module, which can identify the target object using the glasses at this time, and send the recognition result to the controller ; The controller obtains the adjustment parameters corresponding to the target object using the glasses in the storage module according to the recognition result, and controls the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters.
  • the recognition module may be a fingerprint recognition module, a speech recognition module, or a recognition module that recognizes the target object by inputting a corresponding instruction from the target object.
  • the storage module in the glasses adjustment system provided in this embodiment can store adjustment parameters corresponding to different target objects, and also identify the target object using glasses through the identification module. This solution avoids cumbersome adjustment steps every time the target object uses the glasses, and improves the experience of using the glasses.
  • the regulator is a button and is set on the temple of the glasses.
  • the target object can press the button to adjust the position of the lens.
  • the button can be set to two. Press one of the buttons to increase the distance between the two lenses. Press Press another button to narrow the distance between the two lenses; the button can also be set to control each lens individually, multiple buttons can adjust a lens, allowing the target object to adjust the lens to the most ideal position.
  • the adjuster provided in this implementation can allow the target object to adjust the position of the lens according to his own habits, so as to improve the comfort when using glasses; when adjusting, only need to press the button on the mirror leg, the operation is more convenient, and the target is improved.
  • the user experience of the object can allow the target object to adjust the position of the lens according to his own habits, so as to improve the comfort when using glasses; when adjusting, only need to press the button on the mirror leg, the operation is more convenient, and the target is improved.
  • the user experience of the object can allow the target object to adjust the position of the lens according to his own habits, so as to improve the comfort when using glasses; when adjusting, only need to press the button on the mirror leg, the operation is more convenient, and the target is improved.
  • the spectacles provided by this embodiment correspond to the above-mentioned spectacles adjustment system, and thus have the same beneficial effect as the above-mentioned spectacles adjustment system.
  • the glasses in the above embodiments are AR/VR glasses, and there is an optical machine in the AR/VR glasses.
  • the position of the optical machine is not moved, the relative movement between the optical machine and the lens will occur, and then the The display effect of AR/VR glasses will be affected, and ghost images may also appear. Therefore, the optomechanics of the AR/VR glasses are fixedly connected to the lens for synchronous movement.
  • the optical machine can be installed at any position of the glasses, usually at the junction between the lens and the temple.
  • the solution provided by the embodiment of this application is to connect the optical machine to the lens.
  • the optical machine will also move synchronously with the lens; that is, there will be no relative movement between the optical machine and the lens when adjusting the position of the lens.
  • the light engine and the lens move in one direction uniformly, which avoids affecting the display effect of the AR/VR glasses and avoids the occurrence of ghost images.
  • this embodiment also provides an adjustment method for glasses, which is applied to a glasses adjustment system including a shape memory alloy, a drive circuit, a controller, and an adjuster, wherein the adjuster is connected to the controller, and the controller It is connected with the drive circuit; the drive circuit is connected with the shape memory alloy, which is used to flow the generated current through the shape memory alloy; the shape memory alloy is connected to the lens, and the adjustment direction of the lens is consistent with the stretching direction of the shape memory alloy;
  • Figure 5 is the application A flow chart of a method for adjusting glasses provided in the embodiment; as shown in the figure, the method includes the following steps:
  • S11 Control the magnitude of the current of the driving circuit and/or the power-on time of the driving circuit according to the adjustment parameters, so as to adjust the position of the lens.
  • the method for adjusting glasses provided in this embodiment corresponds to the above-mentioned glasses adjusting system, so it has the same beneficial effects as the above-mentioned glasses adjusting system.

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Abstract

一种眼镜调节系统、眼镜以及眼镜的调节方法，应用于电子控制领域，该系统包括形状记忆合金（13）、控制器（11）、调节器（10）和驱动电路（12），控制器（11）分别连接调节器（10）和驱动电路（12），调节器（10）会获取镜片的调节参数并发送至控制器（11），控制器（11）根据调节参数控制驱动电路（12）电流的大小和/或驱动电路（12）的通电时间。驱动电路（12）产生电流流过形状记忆合金（13），当形状记忆合金（13）伸缩时，相连的镜片会随着伸缩的方向移动。相比于步进电机方案，一是该系统使用形状记忆合金（13），比步进电机的尺寸更小；二是本系统是通过电流控制形状记忆合金（13）的温度变化，不会产生噪音；三是使用形状记忆合金（13）相比于步进电机能达到的控制精度有明显提高；四是使用形状记忆合金（13）的功耗比使用步进电机更低。

Description

一种眼镜调节系统、眼镜以及眼镜的调节方法
本申请要求于2021年11月25日提交中国专利局、申请号为
202111415371.2、发明名称为“一种眼镜调节系统、眼镜以及眼镜的调节方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子控制领域，特别是涉及一种眼镜调节系统、眼镜以及眼镜的调节方法。
背景技术
瞳孔间距是双眼之间的距离，该距离对于眼镜的镜片间距调节非常重要。尤其是在增强现实(Augmented Reality，AR)或虚拟现实(Virtual Reality，VR)中，通常需要调整光机和镜片的位置以匹配目标对象的瞳孔间距，一般只需要调整镜片的位置，光机可以跟随镜片移动，调整后可以给目标对象提供最佳的体验。在AR/VR中使用错误的瞳孔间距设置可能会导致视觉模糊和眼睛疲劳。通常调整眼镜的镜片的主要方案是采用步进电机，具体方案为步进电机连接镜片，在获取到目标对象的瞳孔间距之后，使用步进电机带动镜片移动以匹配目标对象的瞳孔间距。
使用步进电机时，由于步进电机尺寸大，且结构模组较重，会导致使用眼镜时不方便。
由此可见，如何使能调整镜片的眼镜调节系统更加轻薄以提高便携性是本领域技术人员亟待解决的问题。
发明内容
本申请的目的是提供一种眼镜调节系统、眼镜以及眼镜的调节方法，能调整镜片的眼镜调节系统更加轻薄以提高便携性、减少调节时的噪音以提高目标对象的使用体验感、提高镜片的控制精度、以及降低系统的功耗。
为解决上述技术问题，本申请提供一种眼镜调节系统，包括：形状记忆合金、驱动电路、控制器、调节器；
所述调节器与所述控制器连接，用于获取镜片的调节参数并将所述调节参数发送至所述控制器；
所述控制器与所述驱动电路连接，用于根据所述调节参数控制所述驱动电路电流的大小和/或所述驱动电路的通电时间；
所述驱动电路与所述形状记忆合金连接，用于将产生的所述电流流过所述形状记忆合金；
所述形状记忆合金连接所述镜片，且所述镜片的调节方向与所述形状记忆合金的伸缩方向一致。
优选地，所述镜片为两个，所述形状记忆合金为两条，所述驱动电路为两个；
两条所述形状记忆合金的第一端分别连接一个所述镜片，两条所述形状记忆合金的第二端分别连接一个所述驱动电路。
优选地，所述驱动电路包括：第一MOS管；
所述第一MOS管的栅极连接所述控制器的第一GPIO引脚，所述第一MOS管的源极接地，所述形状记忆合金设置于所述第一MOS管的漏极与电源之间；
所述控制器根据所述调节参数确定所述电流对应的占空比和/或所述通电时间，并根据所述占空比和/或所述通电时间控制所述第一MOS管工作。
优选地，还包括：合金温度检测电路，用于检测所述形状记忆合金的温度；所述合金温度检测电路包括：第一热敏电阻、第一分压电阻、第二MOS管；
所述第二MOS管的栅极连接所述控制器的第二GPIO引脚，所述第二MOS管的源极接地，所述第一分压电阻与所述第一热敏电阻串联于所述第二MOS管的漏极与电源之间，所述第一分压电阻与所述第一热敏电阻之间连接所述控制器的第一ADC引脚；
其中所述第一ADC引脚用于检测所述第一分压电阻与所述第一热敏电阻中间位置的电压；
所述第一热敏电阻贴附在所述形状记忆合金处；
所述控制器还用于依据所述形状记忆合金在不同温度下对应的形变量修正所述调节参数与所述电流的大小和/或所述通电时间的对应关系。
优选地，还包括：环境温度检测电路，用于检测眼镜内部的环境温度；所述环境温度检测电路包括：第二热敏电阻、第二分压电阻、第三MOS管；
所述第三MOS管的栅极连接所述控制器的第三GPIO引脚，所述第三MOS管的源极接地，所述第二分压电阻与所述第二热敏电阻串联于所述第三MOS管的漏极与电源之间，所述第二分压电阻与所述第二热敏电阻之间连接所述控制器的第二ADC引脚；
其中所述第二ADC引脚用于检测所述第二分压电阻与所述第二热敏电阻中间位置的电压；
所述第二热敏电阻安装在眼镜上，所述控制器还用于根据所述环境温度修正当前所述电流的大小和/或所述通电时间。
优选地，还包括：存储模块，用于存储不同的目标对象对应的所述调节参数；
识别模块，用于识别不同的所述目标对象得到所述目标对象对应的识别结果；
所述识别模块与所述控制器连接，以便于发送所述识别结果至所述控制器；
所述控制器还与所述存储模块连接，用于根据所述识别结果获取所述目标对象在所述存储模块中对应的所述调节参数。
优选地，所述调节器包括设置于眼镜的镜腿处的按键。
为解决上述技术问题，本申请还提供一种眼镜，包括上述眼镜调节系统。
优选地，所述眼镜为AR/VR眼镜，所述AR/VR眼镜的光机与镜片固定连接以便于同步移动。
为解决上述技术问题，本申请还提供一种眼镜的调节方法，应用于包括形状记忆合金、驱动电路、控制器、调节器的眼镜调节系统，其中所述调节器与所述控制器连接，所述控制器与所述驱动电路连接；所述驱动电路与所述形状记忆合金连接，用于将产生的所述电流流过所述形状记忆合金；所述形状记忆合金连接所述镜片，且所述镜片的调节方向与所述形状记忆合金的伸缩方向一致；所述方法包括：
接收调节器发送的镜片的调节参数；
根据所述调节参数控制驱动电路电流的大小和/或所述驱动电路的通电时间，以便于调整所述镜片的位置。
本申请所提供的眼镜调节系统包括形状记忆合金、控制器、调节器和驱动电路，控制器分别连接调节器和驱动电路，调节器会获取镜片的调节参数并将调节参数发送至控制器，控制器根据调节参数控制驱动电路电流的大小和/或驱动电路的通电时间。驱动电路连接形状记忆合金并产生电流流过形状记忆合金，形状记忆合金与镜片相连，当形状记忆合金伸缩时，相连的镜片会随着伸缩的方向移动。由于形状记忆合金具有较高电阻，当形状记忆合金中通过电流时，会产生热量使自身温度变化，形状记忆合金在不同的温度下会有不同的形状，镜片也会处于不同的位置。本申请的眼镜调节系统能通过控制驱动电路中的电流来达到控制镜片移动的目的，以控制眼镜的镜片适应不同的瞳孔间距。相比于步进电机方案，一是该眼镜调节系统使用形状记忆合金来移动镜片，比步进电机的尺寸更小，系统的结构模组更轻薄，使用眼镜时更加方便；二是本系统使用过程中是通过电流控制形状记忆合金的温度变化，温 度变化带来形状记忆合金晶粒结构产生相应的变化从而带来外形的变化，这一过程不会产生噪音；三是使用形状记忆合金能达到微米级的控制精度，相比于步进电机毫米级别的控制精度，本眼镜调节系统的控制精度有明显提高；四是使用形状记忆合金只需要几十毫安级别的电流，功耗比使用步进电机更低。
此外，本申请所提供的眼镜包括上述提到的眼镜调节系统，效果同上。本申请还提供了一种眼镜的调节方法，与上述眼镜调节系统对应，故具有与上述眼镜调节系统相同的有益效果。
附图说明
为了更清楚地说明本申请实施例，下面将对实施例中所需要使用的附图做简单的介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种眼镜调节系统的结构图；
图2为本申请实施例提供的一种眼镜调节系统的安装位置示意图；
图3为本申请实施例提供的另一种眼镜调节系统安装位置示意图；
图4为本申请实施例提供的一种眼镜调节系统的电路结构示意图；
图5为本申请实施例提供的一种眼镜的调节方法的流程图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下，所获得的所有其他实施例，都属于本申请保护范围。
本申请的核心是提供一种眼镜调节系统、眼镜以及眼镜的调节方法。
为了使本技术领域的人员更好地理解本申请方案，下面结合附图和具体实施方式对本申请作进一步的详细说明。
瞳孔间距是指双眼之间的距离，人类的平均瞳孔间距为64毫米，瞳孔间距的范围是54毫米到72毫米之间；对于眼镜来说，尤其是对于AR/VR眼镜，设置好镜片之间的间距以匹配目标对象的瞳孔间距十分重要，其中目标对象指的是佩戴眼镜的人群，镜片可以是光波导镜片。图1为本申请实施例提供的一种眼镜调节系统的结构图；如图所示，该眼镜调节系统包括：形状记忆合金13、驱动电路12、控制器11、调节器10；其中调节器10与控制器11连接，用于获取镜片的调节参数并将调节参数发送至控制器11；控制器11与驱动电路12连 接，用于根据调节参数控制驱动电路12电流的大小和/或驱动电路12的通电时间；驱动电路12与形状记忆合金13连接，用于将产生的电流流过形状记忆合金13；形状记忆合金13连接镜片，且镜片的调节方向与形状记忆合金13的伸缩方向一致。这里对眼镜的镜片、形状记忆合金13、驱动电路12、控制器11、调节器10的数量和种类都不作限制，对它们的安装位置以及相互之间的连接方式也都不作要求，能达到理想的效果即可。
在实际生活中，眼镜的镜片通常都是成对的，但是不限于两个，可以是多对镜片且每对镜片可以通过一条形状记忆合金13连接，也可以每个镜片都单独连接一条形状记忆合金13。本系统中调节器10与控制器11连接，用于获取镜片的调节参数并将调节参数发送至控制器11，其中调节器10可以是按键，目标对象可以按下按键来调整镜片的位置，按键的数量没有要求，可以是多个，按下其中一个按键，可以增加两个镜片之间的距离，按下另外一个按键，可以缩小两个镜片之间的距离，还可以设置其他按键单独控制每个镜片的位置，目标对象可以根据自己的使用习惯调节镜片位置，以提高使用眼镜时的舒适度；调节器10也可以是一个遥控器，目标对象可以在遥控器上进行操作，可以避免按动按键时挤压眼镜造成的不舒适感；调节器10还可以是语音控制器11，通过接收目标对象的语音指令来获取调节参数。控制器11在接收到调节参数之后，可以从调节参数中获取目标对象对镜片调节意向并进行相关控制，控制器11还与驱动电路12连接，用于根据调节参数控制驱动电路12电流的大小和/或驱动电路12的通电时间，可以只控制驱动电路12电流的大小或者只控制驱动电路12的通电时间，也可以同时控制驱动电路12电流的大小和驱动电路12的通电时间以达到相应的控制效果。其中控制驱动电路12电流的大小可以通过控制电流的占空比，例如利用MOS管控制电流的占空比，不同占空比会产生不同大小的电流；也可以通过其他方式控制电流大小。驱动电路12与形状记忆合金13连接，用于将产生的电流流过形状记忆合金13，驱动电路12和形状记忆合金13根据实际情况进行连接，驱动电路12可以连接形状记忆合金13的末端给整条形状记忆合金13通电，也可以连接形状记忆合金13的中间位置，给部分位置通电，只要能产生形变带动镜片移动即可。控制驱动电路12的电流大小或通电时间即控制了流过形状记忆合金13的电流大小和通电时间；形状记忆合金13是导电金属，且具有较高的电阻，也就是说，如果在形状记忆合金13两端施加电压，形状记忆合金13中有电流流过时，会产生焦耳效应，释放出热量使自身的温度上升，相关公式为Q＝I 2Rt，通过控制流过形状记忆合金13的电流大小和通电时间即可以控制形状记忆合金13的温度；温度变化带来形状记忆合金13的晶粒结构产生相应的变化从而带来外形的变化。形状记忆合金13还连接镜片，镜片的调节方向与形状记忆合金13的伸缩方向一致，例如，如果是一条形状记忆合金13安装在两个镜片之间的 情况，则当形状记忆合金13伸长时，两镜片会向两边移动，两镜片的间距相应的会增加。另外，在调节好镜片的位置之后，由于热传递，形状记忆合金13的温度会慢慢趋近于环境温度，镜片可能会继续移动，故可能需要向形状记忆合金13继续供电以维持形状记忆合金13的温度，对于电流的大小和通电时间不作具体要求。
图2为本申请实施例提供的一种眼镜调节系统的安装位置示意图，图中给出的各个部件的安装位置只是本申请实施例中的一种方案，并不对本申请实施例的其他方案造成限制。如图2所示，眼镜包括两个镜片，控制器11安装在两个镜片的中间，驱动电路12安装在控制器11处，驱动电路12还连接形状记忆合金13的一端以便于向形状记忆合金13供电，形状记忆合金13的另外一端连接镜片，以便于形状记忆合金13伸缩时带动镜片移动。
本申请实施例提供的眼镜调节系统包括形状记忆合金、控制器、调节器和驱动电路，控制器分别连接调节器和驱动电路，调节器会获取镜片的调节参数并将调节参数发送至控制器，控制器根据调节参数控制驱动电路电流的大小和/或驱动电路的通电时间。驱动电路连接形状记忆合金并产生电流流过形状记忆合金，形状记忆合金与镜片相连，当形状记忆合金伸缩时，相连的镜片会随着伸缩的方向移动。由于形状记忆合金具有较高电阻，当形状记忆合金中通过电流时，会产生热量使自身温度变化，形状记忆合金在不同的温度下会有不同的形状，镜片也会处于不同的位置。本申请的眼镜调节系统能通过控制驱动电路中的电流来达到控制镜片移动的目的，以控制眼镜的镜片适应不同的瞳孔间距。相比于步进电机方案，一是该眼镜调节系统使用形状记忆合金来移动镜片，比步进电机的尺寸更小，系统的结构模组更轻薄，使用眼镜时更加方便；二是本系统使用过程中是通过电流控制形状记忆合金的温度变化，温度变化带来形状记忆合金晶粒结构产生相应的变化从而带来外形的变化，这一过程不会产生噪音；三是使用形状记忆合金能达到微米级的控制精度，相比于步进电机毫米级别的控制精度，本眼镜调节系统的控制精度有明显提高；四是使用形状记忆合金只需要几十毫安级别的电流，功耗比使用步进电机更低。
另外，形状记忆合金采用不同的安装方案对应的控制逻辑是不同的，以下列出几种安装方案以及相应的控制逻辑，下面都是以两个镜片为例，多个镜片与两个镜片的控制逻辑类似，且下面几种方案都采用自身温度升高时会伸长的形状记忆合金，具体方案如下：第一种情况是形状记忆合金安装在两个镜片之间，可以是一条形状记忆合金，也可以是多条，但每条形状记忆合金均同时连接两个镜片，同时控制两个镜片移动；当目标对象想增大两镜片的间距时，需要向调节器发出对应的指令，调节器会获取到增大两个镜片间距相对应的调节参数，控制器接收到相关的调节参数之后控制驱动电路增大电流或增加通电时间，流过形状记忆合 金的电流也相应变化，形状记忆合金则会伸长，并带动两个镜片向两边移动，两个镜片的间距则增大。第二种情况也是形状记忆合金安装在两个镜片之间，但每条形状记忆合金都单独连接一个镜片，即两条形状记忆合金分别控制两个镜片的移动；当目标对象想增大两镜片的间距时，需要向调节器发出对应的指令，调节器会获取到增大两个镜片间距相对应的调节参数，控制器接收到相关的调节参数之后控制驱动电路增大电流或增加通电时间，流过两条形状记忆合金的电流也相应变化，两条形状记忆合金则会伸长，并分别带动两个镜片向两边移动，两个镜片的间距则增大。第三种情况是形状记忆合金安装在眼镜的两边，每条形状记忆合金都单独连接一个镜片，即两条形状记忆合金分别控制两个镜片的移动；但是当目标对象想增大两镜片的间距时，需要形状记忆合金缩短，即驱动电路的电流需要减小或驱动电路的通电时间需要减少。第四种情况是每个镜片都连接多条形状记忆合金，形状记忆合金可以安装在两个镜片之间或者两个镜片的两边；多个形状记忆合金控制一个镜片，可以平衡作用力，使镜片在水平移动时受力更加均匀，移动更加平稳；实际应用时，如果是一条形状记忆合金连接一条镜片的情况，那么可以在形状记忆合金处增加一条导轨，也可以达到增加镜片移动平稳性的效果。需要注意的是，上述四种方案只列举出本申请的眼镜调节系统的部分情形，并不对该系统造成限制。另外，若该系统采用自身温度升高时会缩短的形状记忆合金，则对应的控制逻辑应与上述情况相反。
在实际应用中，眼镜的镜片通常为两个，左右两个镜片因组装和组件的差异，镜片显示区域中心与每个眼睛视觉中心可能不重合，如果采用步进电机的方案或者使用一条形状记忆合金控制两个镜片的方案，不能单独控制两个镜片，就无法给目标对象提供更好的使用体验感。故形状记忆合金采用两条，驱动电路采用两个；两条形状记忆合金的第一端分别连接一个镜片，两条形状记忆合金的第二端分别连接一个驱动电路，每条形状记忆合金都单独控制一个镜片，可以对两个镜片实现不同距离的调控。
两条形状记忆合金的第一端分别连接一个镜片，具体的连接方式不作限制，可以在两个镜片处都设置一块凸起，将形状记忆合金嵌入这块凸起；也可以将镜片和形状记忆合金焊接在一起。两条形状记忆合金的第二端分别连接一个驱动电路，连接的方式也不作限制。每条形状记忆合金都能单独控制一个镜片，控制形状记忆合金伸缩就可以控制相应的镜片移动。
本实施例提供的方案可以分别控制左右两侧形状记忆合金以实现两个镜片不同距离的调控，相比两个镜片统一调控的方式能给目标对象带来更好的使用体验感。
在控制驱动电路的电流时，更加合适的驱动电路和控制方案能够使控制效果更佳，故驱动电路包括：第一MOS管，第一MOS管的栅极连接控制器的第一GPIO引脚，第一MOS 管的源极接地，形状记忆合金设置于第一MOS管的漏极与电源之间；控制器根据调节参数确定电流对应的占空比和/或通电时间，并根据占空比和/或通电时间控制第一MOS管工作，从而控制流过形状记忆合金的电流大小和时间。这里对驱动电路的个数不作要求，第一种情况是当只有一条形状记忆合金时，可以是一个驱动电路给一条形状记忆合金供电；第二种情况是当有多条形状记忆合金时，可以是一个驱动电路给所有形状记忆合金供电，即多条形状记忆合金都设置于一个第一MOS管的漏极与电源之间；第三种情况是多个驱动电路连接多条形状记忆合金，每个驱动电路单独给一条形状记忆合金供电。另外，在眼镜的镜片为两个，形状记忆合金为两条的情况下，作为一种优选的实施方式，可以采用两个驱动电路，两个驱动电路分别单独给两条形状记忆合金供电，以达到更好的控制效果，即为本实施例中提到的第三种情况中的一种情形。
图3为本申请实施例提供的另一种眼镜调节系统安装位置示意图，图中给出的安装方式只是本申请实施例中的一种形式，并不对本申请实施例中的其他形式作出限制。图中包括两条形状记忆合金13、控制器11、以及第一热敏电阻14，两个第一热敏电阻14分别贴附在形状记忆合金13上，控制器11位于两条形状记忆合金13中间。
本实施例提供的方案可以直接通过第一MOS管控制电流的占空比，进而控制电流的大小；同时也能控制电流的导通时间。该方案不需要额外增加控制电流大小的元器件，降低了成本，同时还能较好的完成上述控制效果。
不同的形状记忆合金在变化相同的温度下产生的形变量可能是不同的，为了实现更加精确的控制，该系统还包括：合金温度检测电路，用于检测形状记忆合金的温度；合金温度检测电路包括：第一热敏电阻、第一分压电阻、第二MOS管；第二MOS管的栅极连接控制器的第二GPIO引脚，第二MOS管的源极接地，第一分压电阻与第一热敏电阻串联于第二MOS管的漏极与电源之间，第一分压电阻与第一热敏电阻之间连接控制器的第一ADC引脚；其中第一ADC引脚用于检测第一分压电阻与第一热敏电阻中间位置的电压；第一热敏电阻贴附在形状记忆合金处，当形状记忆合金的温度变化时，第一热敏电阻的温度也会随之改变，第一热敏电阻是一种传感器电阻，其电阻值随着温度的变化而改变。因为第一分压电阻与第一热敏电阻两边的电压是固定的，第一分压电阻的阻值又是已知的，故使用第一ADC引脚测量第一分压电阻与第一热敏电阻之间的电压可以计算出第一热敏电阻此时的阻值，根据第一热敏电阻温度和阻值的对应关系可以推算出第一热敏电阻此时的温度，即得到了形状记忆合金的温度。由于形状记忆合金所处的环境差异以及自身的材料差异，故不同的形状记忆合金在变化了相同的温度下对应产生的形变量可能是不同的，故记录形状记忆合金在不同温度下对应 的形变量形成温度-形变量参数表，控制器可以查找该温度-形变量参数表修正调节参数与电流的大小和/或通电时间的对应关系，从而进行更加准确的控制。
值得一提的是，这里不对合金温度检测电路的数量和热敏电阻的种类作限制，合金温度检测电路可以是一个或多个，第一种情况是只有一条形状记忆合金，也只有一个合金温度检测电路；使用一个第一热敏电阻贴附在该形状记忆合金处用于测量该形状记忆合金的温度。第二种情况是有多条形状记忆合金，也只有一个合金温度检测电路；使用一个第一热敏电阻测量其中一条形状记忆合金的温度，虽然不能得到每条形状记忆合金的温度-形变量参数表，但可以根据这一条形状记忆合金的温度-形变量参数表消除环境因素带来的影响。第三种情况是有多条形状记忆合金，有多个合金温度检测电路；在每条形状记忆合金上都贴附一个第一热敏电阻，单独测量每个形状记忆合金的温度和形变量，这样可以得到每条形状记忆合金的温度-形变量参数表，从而实现精确控制。第一热敏电阻可以是正温度系数热敏电阻，也可以是负温度系数热敏电阻，这里不作要求。
本申请实施例提供了一个形状记忆合金的检测系统，根据不同形状记忆合金的特性分别进行控制，能对镜片进行更加精确的调整。
环境的温度会对形状记忆合金的温度产生影响，若环境温度过低或者过高，则按正常的环境温度输出的电流以及设置的通电时间不能使形状记忆合金达到理想的温度，例如当环境温度较低时，形状记忆合金通过一定时间和一定大小的电流达到的温度比正常的环境温度下要低，则需要增大电流或者增加通电时间。故眼镜调节系统还包括：环境温度检测电路，用于检测眼镜内部的环境温度；环境温度检测电路包括：第二热敏电阻、第二分压电阻、第三MOS管；第三MOS管的栅极连接控制器的第三GPIO引脚，第三MOS管的源极接地，第二分压电阻与第二热敏电阻串联于第三MOS管的漏极与电源之间，第二分压电阻与第二热敏电阻之间连接控制器的第二ADC引脚；其中第二ADC引脚用于检测第二分压电阻与第二热敏电阻中间位置的电压；第二热敏电阻安装在眼镜上，控制器还用于根据环境温度修正当前电流的大小和/或通电时间。
这里对第二热敏电阻的种类、以及安装位置不作限制。第二热敏电阻可以是正温度系数热敏电阻，也可以是负温度系数热敏电阻。第二热敏电阻可以单独安装在眼镜的任意位置，但尽量不要贴皮肤以免测量的环境温度受人体温度的影响；第二热敏电阻也可以与控制器封装起来，安装在左右镜片的中间位置。对环境温度检测电路的数量也不作要求，一般使用一个环境温度检测电路进行测量即可。第二ADC引脚用于检测第二分压电阻与第二热敏电阻中间位置的电压；第二热敏电阻是一种传感器电阻，其电阻值随着温度的变化而改变。因为第 二分压电阻与第二热敏电阻两边的电压是固定的，第二分压电阻的阻值又是已知的，故使用第二ADC引脚测量第二分压电阻与第二热敏电阻之间的电压可以计算出第二热敏电阻此时的阻值，根据第二热敏电阻温度和阻值的对应关系可以推算出第二热敏电阻此时的温度，即得到了环境温度。控制器根据环境温度修正当前电流的大小和/或通电时间，若环境温度较低，则可以增大电流或者增加通电时间；若环境温度较高，则可以减小电流或者减少通电时间。
本实施例提供的环境温度检测电路可以协助控制器控制形状记忆合金的温度，控制器可以根据检测到的环境温度修正当前电流的大小和/或通电时间以提高控制精度。
图4为本申请实施例提供的一种眼镜调节系统的电路结构示意图；图中给出的电路只是本申请提供的其中一种方式，本申请还包括其他实施方式。如图所示，眼镜调节系统包括两条形状记忆合金13，图中还包括了两个驱动电路12，两个合金温度检测电路，以及一个环境温度检测电路，可以实现上述实施例中的功能。控制器11通过引脚控制这些电路以及测量电路中指定位置的电压，两个驱动电路12均有一个第一MOS管Q1，分别为左侧的第一MOS管Q1和右侧的第一MOS管Q1，控制器11通过两个第一GPIO引脚分别控制两个第一MOS管Q1，两个第一MOS管Q1的漏极分别连接两条形状记忆合金13的一端，两条形状记忆合金13的另一端连接电源，两个第一MOS管Q1分别控制电流流过两条形状记忆合金13。两个合金温度检测电路均包括一个第一分压电阻R1、一个第一热敏电阻14、以及一个第二MOS管Q2；其中两个第一分压电阻R1包括左侧的第一分压电阻R1和右侧的第一分压电阻R1，两个第二MOS管包括左侧的第二MOS管Q2和右侧的第二MOS管Q2，两个第二MOS管Q2的漏极分别连接两个第一热敏电阻14的一端，两个第一热敏电阻14的另一端分别连接控制器11的两个第一ADC引脚以及两个第一分压电阻R1的一端，两个第一分压电阻R1的另外一端连接3V的电源，第一热敏电阻14贴附在形状记忆合金13上。环境温度检测电路包括一个第三MOS管Q3，第三MOS管Q3的漏极连接第二热敏电阻15的一端，第二热敏电阻15的另一端连接控制器11的第二ADC引脚以及第二分压电阻R2的一端，第二分压电阻R2的另外一端接3V的电源。
在一些情况下，这种装有眼镜调节系统的眼镜可能会有多个使用者，不同的使用者的瞳孔间距多少都会有差异。故眼镜调节系统还包括：存储模块，用于存储不同的目标对象对应的调节参数；识别模块，用于识别不同的目标对象得到目标对象对应的识别结果；识别模块与控制器连接，以便于发送识别结果至控制器；控制器还与存储模块连接，用于根据识别结果获取目标对象在存储模块中对应的调节参数。
当一个目标对象第一次使用这种装有眼镜调节系统的眼镜时，需要将眼镜的镜片调整到 适合自己观看的位置，当其他目标对象使用同一副眼镜时，可能会将眼镜的设置进行修改，导致此目标对象再次使用这副眼镜时使用体验感较差，需要对镜片的位置再次进行调节，使用起来十分繁琐。故目标对象可以选择将自己调整好的镜片的位置对应的调节参数存储在存储模块中；眼镜上装有识别模块，可以识别出此时使用眼镜的目标对象，并将得到的识别结果发送至控制器；控制器根据识别结果获取此时使用眼镜的目标对象在存储模块中对应的调节参数，并根据此调节参数控制驱动电路电流的大小和/或驱动电路的通电时间。其中，识别模块可以是指纹识别模块、语音识别模块，还可以是通过目标对象输入对应的指令来识别目标对象的识别模块。
本实施例提供的眼镜调节系统中的存储模块可以存储不同的目标对象对应的调节参数，还通过识别模块识别出使用眼镜的目标对象。这种方案避免了目标对象每次使用眼镜时都进行繁琐的调节步骤，提高了眼镜的使用体验感。
上述实施例中并没有对调节器的种类进行限定，但若是使用的调节器不合适或者是调节器安装的位置不合适会给目标对象带来不好的体验。故调节器为按键且设置于眼镜的镜腿处，目标对象可以按下按键来调整镜片的位置，按键可以设置成两个，按下其中一个按键，可以增加两个镜片之间的距离，按下另一个按键，可以缩小两个镜片之间的距离；按键还可以设置成单独控制每个镜片的模式，多个按键对一个镜片进行调节，可以让目标对象将镜片调整到最理想的位置。
本实施中提供的调节器可以让目标对象根据自己的使用习惯调节镜片位置，以提高使用眼镜时的舒适度；调节时只需要按动镜腿上的按键即可，操作比较方便，提高了目标对象的使用体验感。
上文中对于眼镜调节系统的实施例进行了详细说明，本申请还提供一种眼镜对应的实施例，该眼镜包括上述实施例提到的眼镜调节系统。由于上文中对于各部件进行了详细描述，故本实施例不再赘述。
本实施例提供的眼镜，与上述眼镜调节系统对应，故具有与上述眼镜调节系统相同的有益效果。
上述实施例中的眼镜为AR/VR眼镜，AR/VR眼镜中有光机，在调整镜片的位置时，若不移动光机的位置，则光机与镜片之间会发生相对移动，进而对AR/VR眼镜的显示效果造成影响，还可能会出现鬼影现象。故将AR/VR眼镜的光机与镜片固定连接以便于同步移动。
在具体实施中，光机可以安装在眼镜的任意位置，通常情况下是安装在镜片与镜腿之间 的交接处，本申请实施例提供的方案是将光机与镜片固定连接，当两条形状记忆合金伸缩带动镜片移动时，光机也会随镜片同步移动；即调整镜片的位置时光机与镜片之间不会发生相对移动。
本实施例中光机和镜片统一向一个方向移动，避免了对AR/VR眼镜的显示效果造成影响，也避免了鬼影现象的发生。
在上述实施例的基础上，本实施例还提供一种眼镜的调节方法，应用于包括形状记忆合金、驱动电路、控制器、调节器的眼镜调节系统，其中调节器与控制器连接，控制器与驱动电路连接；驱动电路与形状记忆合金连接，用于将产生的电流流过形状记忆合金；形状记忆合金连接镜片，且镜片的调节方向与形状记忆合金的伸缩方向一致；图5为本申请实施例提供的一种眼镜的调节方法的流程图；如图所示上述方法包括如下步骤：
S10：接收调节器发送的镜片的调节参数；
S11：根据调节参数控制驱动电路电流的大小和/或驱动电路的通电时间，以便于调整镜片的位置。
本实施例提供的眼镜的调节方法，与上述眼镜调节系统对应，故具有与上述眼镜调节系统相同的有益效果。
以上对本申请所提供的眼镜调节系统、眼镜以及眼镜的调节方法进行了详细介绍。说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。
还需要说明的是，在本说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括上述要素的过程、方法、物品或者设备中还存在另外的相同要素。

Claims (10)

  1. 一种眼镜调节系统，其特征在于，包括：形状记忆合金、驱动电路、控制器、调节器；
    所述调节器与所述控制器连接，用于获取镜片的调节参数并将所述调节参数发送至所述控制器；
    所述控制器与所述驱动电路连接，用于根据所述调节参数控制所述驱动电路电流的大小和/或所述驱动电路的通电时间；
    所述驱动电路与所述形状记忆合金连接，用于将产生的所述电流流过所述形状记忆合金；
    所述形状记忆合金连接所述镜片，且所述镜片的调节方向与所述形状记忆合金的伸缩方向一致。
  2. 根据权利要求1所述的眼镜调节系统，其特征在于，所述镜片为两个，所述形状记忆合金为两条，所述驱动电路为两个；
    两条所述形状记忆合金的第一端分别连接一个所述镜片，两条所述形状记忆合金的第二端分别连接一个所述驱动电路。
  3. 根据权利要求1或2所述的眼镜调节系统，其特征在于，所述驱动电路包括：第一MOS管；
    所述第一MOS管的栅极连接所述控制器的第一GPIO引脚，所述第一MOS管的源极接地，所述形状记忆合金设置于所述第一MOS管的漏极与电源之间；
    所述控制器根据所述调节参数确定所述电流对应的占空比和/或所述通电时间，并根据所述占空比和/或所述通电时间控制所述第一MOS管工作。
  4. 根据权利要求3所述的眼镜调节系统，其特征在于，还包括：合金温度检测电路，用于检测所述形状记忆合金的温度；所述合金温度检测电路包括：第一热敏电阻、第一分压电阻、第二MOS管；
    所述第二MOS管的栅极连接所述控制器的第二GPIO引脚，所述第二MOS管的源极接地，所述第一分压电阻与所述第一热敏电阻串联于所述第二MOS管的漏极与电源之间，所述第一分压电阻与所述第一热敏电阻之间连接所述控制器的第一ADC引脚；
    其中所述第一ADC引脚用于检测所述第一分压电阻与所述第一热敏电阻中间位置的电压；
    所述第一热敏电阻贴附在所述形状记忆合金处；
    所述控制器还用于依据所述形状记忆合金在不同温度下对应的形变量修正所述调节参数与所述电流的大小和/或所述通电时间的对应关系。
  5. 根据权利要求4所述的眼镜调节系统，其特征在于，还包括：环境温度检测电路，用于检测眼镜内部的环境温度；所述环境温度检测电路包括：第二热敏电阻、第二分压电阻、第三MOS管；
    所述第三MOS管的栅极连接所述控制器的第三GPIO引脚，所述第三MOS管的源极接地，所述第二分压电阻与所述第二热敏电阻串联于所述第三MOS管的漏极与电源之间，所述第二分压电阻与所述第二热敏电阻之间连接所述控制器的第二ADC引脚；
    其中所述第二ADC引脚用于检测所述第二分压电阻与所述第二热敏电阻中间位置的电压；
    所述第二热敏电阻安装在眼镜上，所述控制器还用于根据所述环境温度修正当前所述电流的大小和/或所述通电时间。
  6. 根据权利要求1所述的眼镜调节系统，其特征在于，还包括：存储模块，用于存储不同的目标对象对应的所述调节参数；
    识别模块，用于识别不同的所述目标对象得到所述目标对象对应的识别结果；
    所述识别模块与所述控制器连接，以便于发送所述识别结果至所述控制器；
    所述控制器还与所述存储模块连接，用于根据所述识别结果获取所述目标对象在所述存储模块中对应的所述调节参数。
  7. 根据权利要求1所述的眼镜调节系统，其特征在于，所述调节器包括设置于眼镜的镜腿处的按键。
  8. 一种眼镜，其特征在于，包括权利要求1至6任意一项所述的眼镜调节系统。
  9. 根据权利要求7所述的眼镜，其特征在于，所述眼镜为AR/VR眼镜，所述AR/VR眼镜的光机与镜片固定连接以便于同步移动。
  10. 一种眼镜的调节方法，其特征在于，应用于包括形状记忆合金、驱动电路、控制器、调节器的眼镜调节系统，其中所述调节器与所述控制器连接，所述控制器与所述驱动电路连接；所述驱动电路与所述形状记忆合金连接，用于将产生的所述电流流过所述形状记忆合金；所述形状记忆合金连接所述镜片，且所述镜片的调节方向与所述形状记忆合金的伸缩方向一致；所述方法包括：
    接收调节器发送的镜片的调节参数；
    根据所述调节参数控制驱动电路电流的大小和/或所述驱动电路的通电时间，以便于调整所述镜片的位置。
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