An aperture detection device and method for an aperture

Abstract

The present invention discloses an aperture detection device and an aperture detection method for an aperture. The aperture detection device includes: a control module, an aperture driving circuit, a lens module, a laser module, and a photoelectric sensing module; the aperture driving circuit is electrically connected to the control module and the aperture respectively, and is used to control the opening aperture of the aperture; the laser module is electrically connected to the control module, and is used to send a laser signal to the aperture, and the laser signal forms a modulated laser signal after passing through the aperture; the photoelectric sensing module is located on the transmission path of the modulated laser signal, and the photoelectric sensing module is electrically connected to the control module, and is used to receive the modulated laser signal and convert the modulated laser signal into a voltage signal and then transmit it to the control module; the control module is used to determine the opening aperture of the aperture according to the voltage signal. The technical solution of the embodiment of the present invention can achieve accurate detection of the aperture of the aperture, and at the same time reduce the cost of aperture detection.

Description

Technical Field

[0001] The present invention relates to the technical field of aperture detection, and in particular to an aperture detection device and method. Background Art

[0002] In the prior art, it is necessary to detect the aperture after assembling the aperture to the lens.

[0003] There are mainly two existing methods for automatic aperture detection. The first detection method is to detect the opening and closing of the automatic aperture based on a transmissive photoelectric switch. The disadvantage of this detection method is that it is prone to misjudgment when the aperture cannot be fully opened or fully closed. The second detection method is based on CMOS imaging to calculate the aperture size of the aperture, so as to judge whether the aperture actuation is abnormal. The disadvantage of this method is high cost and low mass production.

[0004] Therefore, how to achieve accurate detection of the aperture size while reducing the aperture detection cost has become a research hotspot. Summary of the Invention

[0005] An embodiment of the present invention provides an aperture detection device and an aperture detection method for an aperture, which can achieve accurate detection of the aperture size while reducing the aperture detection cost.

[0006] In a first aspect, an embodiment of the present invention provides an aperture detection device for an aperture, including: a control module, an aperture drive circuit, a lens module, a laser module, and a photoelectric sensing module; the aperture is disposed in the lens module;

[0007] The aperture drive circuit is electrically connected to the control module and the aperture respectively, and is configured to control the opening aperture of the aperture according to the first control information of the control module;

[0008] The laser module is electrically connected to the control module, and is configured to emit a laser signal to the aperture according to the second control information of the control module. The laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes the aperture information of the aperture;

[0009] The photoelectric sensing module is located on the transmission path of the modulated laser signal, and the photoelectric sensing module is electrically connected to the control module, and is configured to receive the modulated laser signal and convert the modulated laser signal into a voltage signal and then transmit it to the control module;

[0010] The control module is configured to determine the opening aperture of the aperture according to the voltage signal;

[0011] Optionally, the aperture detection device is further configured to detect a dual filter switch;

[0012] The dual filter switcher includes a first filter and a second filter, and the filtering ranges of the first filter and the second filter are different;

[0013] The aperture detection device further includes a switcher drive circuit, which is electrically connected to the control module and the dual filter switcher respectively, and is used to control the switching between the first filter and the second filter according to the third control information of the control module;

[0014] Optionally, the aperture detection device further includes an adapter interface;

[0015] The adapter interface includes a first type of adapter terminal and a second type of adapter terminal. The first type of adapter terminal is electrically connected to the aperture drive circuit and the aperture respectively, and the second type of adapter terminal is electrically connected to the switcher drive circuit and the dual filter switcher respectively;

[0016] Optionally, the aperture detection device includes a plurality of the adapter interfaces;

[0017] Optionally, the spot size of the laser signal is adjustable;

[0018] Optionally, the aperture detection device further includes a slide rail;

[0019] The laser module is arranged on the surface of the slide rail and the laser module can slide along the slide rail;

[0020] Optionally, the aperture detection device further includes a signal amplification module;

[0021] The signal amplification module is electrically connected to the photoelectric sensing module and the control module respectively, and is used to amplify the voltage signal and then transmit it to the control module;

[0022] Optionally, the aperture detection device further includes an aperture resistance detection module;

[0023] The aperture resistance detection module is electrically connected to the control module and the aperture respectively, and is used to detect the resistance information of the aperture according to the fourth control information of the control module and feedback the resistance to the control module;

[0024] Optionally, the aperture detection device further includes a detection prompt module;

[0025] The detection prompt module includes at least two light-emitting elements with different light-emitting colors, and the light-emitting elements are used to emit light according to the detection result of the aperture detection device;

[0026] Optionally, the aperture detection device further includes a lens base;

[0027] The lens module is placed in the lens base;

[0028] Optionally, the aperture detection device further includes a start button;

[0029] The start button is electrically connected to the control module, and the control module is configured to control the operation of the aperture detection device according to the pressed state of the start button;

[0030] Optionally, the aperture drive circuit includes a pulse width modulation circuit;

[0031] In a second aspect, an embodiment of the present invention provides an aperture detection method for an aperture, and the aperture detection method is applicable to the aperture detection device according to any embodiment of the present invention, where the method includes:

[0032] Sending first control information to the aperture drive circuit to enable the aperture drive circuit to control the opening aperture of the aperture according to the first control information;

[0033] Sending second control information to the laser module to enable the laser module to emit a laser signal to the aperture according to the second control information, and the laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes the aperture information of the aperture;

[0034] Receiving the voltage signal transmitted by the photoelectric sensing module and determining the opening aperture of the aperture according to the voltage signal; the voltage signal is obtained by converting the modulated laser signal;

[0035] Optionally, the aperture detection device is further configured to detect a dual filter switch;

[0036] The dual filter switch includes a first filter and a second filter, and the filtering ranges of the first filter and the second filter are different;

[0037] The aperture detection device further includes a switch drive circuit, and the switch drive circuit is electrically connected to the control module and the dual filter switch respectively;

[0038] The aperture detection method further includes:

[0039] Sending third control information to the switch drive circuit to enable the switch drive circuit to control the switching between the first filter and the second filter according to the third control information;

[0040] Optionally, the aperture detection device further includes an aperture resistance detection module;

[0041] Before sending the first control information to the aperture drive circuit, it further includes:

[0042] Send the fourth control information to the aperture resistance detection module so that the aperture resistance detection module detects the resistance of the aperture according to the fourth control information;

[0043] Receive the resistance information fed back by the aperture resistance detection module and determine whether the resistance information meets the preset resistance requirements;

[0044] Optionally, calibrate the aperture detection device;

[0045] Optionally, calibrating the aperture detection device includes:

[0046] Preset calibration reference values, which include a maximum calibration reference value and a minimum calibration reference value;

[0047] Receive the voltage signals transmitted by the photoelectric sensing module at preset time intervals, and the voltage signals at least include all voltage signals within one actuation cycle of the aperture;

[0048] Obtain the maximum voltage signal among all the voltage signals and its physical address, and obtain the minimum voltage signal among all the voltage signals and its physical address;

[0049] Determine the maximum voltage value according to the maximum voltage signal and its physical address, and determine the minimum voltage value according to the minimum voltage signal and its physical address;

[0050] Determine whether the lens meets the preset requirements according to the maximum voltage value, the maximum calibration reference value, the minimum voltage value, and the minimum calibration reference value;

[0051] When the lens meets the preset requirements, set thresholds for the maximum voltage value and the minimum voltage value to obtain the determination criteria of the aperture detection device.

[0052] The technical solution provided by the embodiment of the present invention realizes precise detection of the aperture of the aperture by setting a control module, an aperture drive circuit, a lens module, a laser module, and a photoelectric sensing module. Among them, the aperture is arranged in the lens module, the aperture drive circuit is electrically connected to the control module and the aperture respectively, the laser module is electrically connected to the control module, the photoelectric sensing module is located on the transmission path of the modulated laser signal, and the photoelectric sensing module is electrically connected to the control module. The first control information of the control module controls the opening aperture of the aperture, the second control information of the control module emits a laser signal to the aperture, the laser signal forms a modulated laser signal after passing through the aperture, the photoelectric sensing module receives the modulated laser signal and converts it into a voltage signal and then transmits it to the control module, so as to determine the opening aperture of the aperture. The technical solution of the embodiment of the present invention can achieve precise detection of the aperture of the aperture, while reducing the aperture detection cost, having high mass production performance and high intelligence level. Description of the Drawings

[0053] Figure 1 It is a schematic structural diagram of an aperture detection device for an aperture provided in the first embodiment of the present invention;

[0054] Figure 2 It is a schematic diagram of the hardware connection of another aperture detection device for an aperture provided in the first embodiment of the present invention;

[0055] Figure 3 It is a schematic diagram of the hardware connection of yet another aperture detection device for an aperture provided in the first embodiment of the present invention;

[0056] Figure 4 It is a schematic diagram of the hardware connection of still another aperture detection device for an aperture provided in the first embodiment of the present invention;

[0057] Figure 5 It is a flowchart of a method for detecting the aperture of an aperture provided in the second embodiment of the present invention;

[0058] Figure 6 It is a flowchart of another method for detecting the aperture of an aperture provided in the second embodiment of the present invention;

[0059] Figure 7 It is a flowchart of yet another method for detecting the aperture of an aperture provided in the second embodiment of the present invention;

[0060] Figure 8 It is a flowchart of still another method for detecting the aperture of an aperture provided in the second embodiment of the present invention;

[0061] Figure 9 It is a flowchart of a method for calibrating an aperture detection device for an aperture provided in the second embodiment of the present invention;

[0062] Figure 10 It is a specific implementation flowchart of a method for detecting the aperture of an aperture provided in the second embodiment of the present invention. Detailed implementation manners

[0063] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will, in combination with the accompanying drawings in the embodiments of the present invention, completely describe the technical solutions of the present invention through specific implementation manners. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0064] Embodiment 1

[0065] Figure 1 It is a schematic structural diagram of an aperture detection device for an aperture provided in the first embodiment of the present invention, Figure 2Schematic diagram of the hardware connection of another aperture detection device provided by Embodiment 1 of the present invention. The aperture detection device provided by the embodiment of the present invention is applicable to the detection of the aperture of an aperture. In combination with Figure 1 and Figure 2 As shown, an aperture detection device for an aperture provided by an embodiment of the present invention includes: a control module 101, an aperture driving circuit 102, a lens module 103, a laser module 104, and a photoelectric sensing module 105; an aperture 106 is placed in the lens module 103; the aperture driving circuit 102 is electrically connected to the control module 101 and the aperture 106 respectively, and is used to control the opening aperture of the aperture 106 according to the first control information of the control module 101; the laser module 104 is electrically connected to the control module 101, and is used to emit a laser signal to the aperture 106 according to the second control information of the control module 101. The laser signal forms a modulated laser signal after passing through the aperture 106, and the modulated laser signal includes the aperture information of the aperture; the photoelectric sensing module 105 is located on the transmission path of the modulated laser signal, and the photoelectric sensing module 105 is electrically connected to the control module 101, and is used to receive the modulated laser signal and convert the modulated laser signal into a voltage signal and then transmit it to the control module 101; the control module 101 is used to determine the opening aperture of the aperture 106 according to the voltage signal.

[0066] The aperture 106 refers to a device used to control the amount of light passing through the lens and entering the photosensitive surface inside the camera body. The function of the aperture is to determine the amount of light entering the lens. In the embodiment of the present invention, the aperture 106 is arranged in the lens module 103. The aperture 106 is a variable-sized light-passing aperture on the lens module 103. The aperture diameter can be changed by automatic or manual adjustment, so as to control the amount of light entering. For example, when the aperture of the aperture 106 is the largest, that is, the aperture 106 is fully opened, the amount of light entering is the largest; when the aperture of the aperture 106 is the smallest, that is, the aperture 106 is fully closed, the amount of light entering is the smallest. The control module 101 includes a first control information output terminal Y1, the aperture driving circuit 102 includes a first control information receiving terminal X1, the first control information output terminal Y1 is electrically connected to the first control information receiving terminal X1, and the aperture driving circuit 102 is electrically connected to the aperture 106. In this way, the aperture driving circuit 102 receives the first control information of the control module 101 to control the opening aperture of the aperture 106.

[0067] Further, the control module 101 includes a second information output terminal Y2, and the laser module 104 includes a second information receiving terminal X2. The second information output terminal Y2 is electrically connected to the second information receiving terminal X2. The laser module 104 emits a laser signal to the aperture 106 according to the second control information of the control module 101. The laser signal forms a modulated laser signal after passing through the aperture 106, wherein the modulated laser signal includes the aperture information of the aperture 106. A photoelectric sensing module 105 is provided on the transmission path of the modulated laser signal. The photoelectric module 105 includes a voltage signal output terminal YV, and the control module 101 includes a voltage signal receiving terminal XV. The voltage signal output terminal YV is electrically connected to the voltage signal receiving terminal XV. The photoelectric sensing module 105 receives the modulated laser signal, converts it into a voltage signal, and then transmits it to the control module 101. Further, the control module 101 determines the opening aperture of the aperture 106 according to the received voltage signal.

[0068] Among them, the control module 101 is the software support of the entire device, which is used for the output and / or reception of information and / or signals, and performs processing and calculation according to the information and / or signals. The software implementation method based on the control module is not limited in the embodiments of the present invention. For example, it can be a single-chip microcomputer, which has the advantages of simple structure, high reliability, strong processing ability, and fast speed.

[0069] The aperture driving circuit 102 is used to drive the opening aperture of the aperture 106. Specifically, the aperture driving circuit 102 controls the opening aperture of the aperture 106 according to the received first control information. The first control information can be an analog signal or a digital signal. The first control information generated by the control module 101 is output to the aperture driving circuit 102 through the first control information output terminal Y1. The aperture driving circuit 102 controls the aperture opening of the aperture 106 according to the received first control information.

[0070] The lens module 103 refers to an optical device composed of lenses on a camera, a camera, or a projector. According to the different ways of adjusting the focal length, aperture, and zoom of the lens, the types of lenses are also different. This is not limited in this embodiment.

[0071] The laser module 104 is a device for emitting laser light, which can emit laser signals with pure quality and stable spectrum. Depending on the range of laser wavelengths generated by the laser module 104, it can be a red laser. The red light is visible to the human eye, and the photosensitive device has the highest sensitivity within this range. Using the laser module 104 as the light source is because the laser signal has strong penetration and highly concentrated energy, which can ensure that even if the aperture 106 is assembled inside the lens module 103, the laser signal can be obtained and detected. The number of laser modules 104 is not limited in the embodiments of the present invention. For example, there can be multiple ones, which are used to emit laser signals to multiple apertures simultaneously. Specifically, the laser module 104 emits a laser signal to the aperture 106 according to the received second control information. After passing through the aperture 106, the laser signal forms a modulated laser signal, and the modulated laser signal includes the aperture information of the aperture. Among them, the second control information can be an analog signal or a digital signal; the modulated laser signal refers to a laser signal with different light incident amounts. Different light incident amounts indicate different aperture sizes of the aperture. For example, the larger the aperture of the aperture, the more the light incident amount; the smaller the aperture of the aperture, the smaller the light incident amount.

[0072] The optoelectronic sensing module 105 is a device for converting an optical signal into an electrical signal, and its working principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon that when light irradiates on certain substances, the electrons of the substances absorb the energy of photons and generate corresponding electrical effects. Depending on the optoelectronic element on which the optoelectronic sensing module 105 is based, its specific type is also different. For example, the optoelectronic element can be a phototube, a photomultiplier tube, a photoresistor, a photodiode, or a phototransistor, etc. Specifically, the optoelectronic sensing module 105 converts the modulated laser signal into a voltage signal and outputs it to the control module 101 through the voltage signal output terminal YV. The control module 101 determines the opening aperture of the aperture 106 according to the received voltage signal. As the modulated laser signal continuously changes, the voltage signal at the output end of the optoelectronic sensing module 105 also continuously changes. For example, if the voltage signal received by the control module 101 is the maximum voltage signal, it is determined that the opening aperture of the aperture 106 is the largest; otherwise, it means that the aperture of the aperture 106 is not fully opened.

[0073] Combined Figure 1 and Figure 2 As shown, the aperture detection device further includes a protection device 114, a laser module fixing device 115, a device name 118, a chassis structure 119, etc., to ensure the normal operation of the aperture detection device.

[0074] The technical solution provided by the embodiment of the present invention includes a control module, an aperture driving circuit, a lens module, a laser module, and a photoelectric sensing module. Among them, the aperture is arranged in the lens module. The aperture driving circuit is electrically connected to the control module and the aperture respectively. The laser module is electrically connected to the control module. The photoelectric sensing module is located on the transmission path of the modulated laser signal and is electrically connected to the control module. The first control information of the control module controls the opening aperture of the aperture. The second control information of the control module emits a laser signal to the aperture. The laser signal forms a modulated laser signal after passing through the aperture. The photoelectric sensing module receives the modulated laser signal, converts it into a voltage signal, and then transmits it to the control module, thereby determining the opening aperture of the aperture. The technical solution of the embodiment of the present invention can achieve accurate detection of the aperture of the aperture, reduce the cost of aperture detection at the same time, and has high mass production performance and high intelligence level.

[0075] Continue to refer to Figure 1 and Figure 2 As shown, optionally, the aperture detection device further includes a lens base 117; the lens module 103 is placed in the lens base 117.

[0076] Among them, the lens base 117 is used to insert the lens module 103. The shape of the lens base 117 is not limited in the embodiment of the present invention. For example, it can be circular and can be adapted to various lens modules 103 of different sizes and types. The number of lens bases 117 is not limited in the embodiment of the present invention. For example, there can be multiple lens bases 117, which are used to detect the apertures of multiple apertures 106 at the same time. Further, by fixing the lens module on the lens base, it is possible to prevent the lens module from moving or tipping during the detection of the aperture by the aperture detection device, thereby affecting the detection result.

[0077] Continue to refer to Figure 2 As shown, optionally, the aperture driving circuit includes a pulse width modulation circuit.

[0078] Among them, the pulse width modulation circuit is used to drive the aperture of the aperture 106 to open. The size of the aperture opening is related to the width of the pulse signal output by the pulse width modulation circuit. By using the pulse width modulation circuit as the driving circuit of the aperture, it is ensured that the actuation control method of the aperture is simple.

[0079] On the basis of the above embodiment, Figure 3 This is a schematic diagram of the hardware connection of another aperture detection device provided by Embodiment 1 of the present invention. As Figure 3As shown, optionally, the aperture detection device is further configured to detect the dual filter switch 108; the dual filter switch includes a first filter 1081 and a second filter 1082, and the filtering ranges of the first filter 1081 and the second filter 1082 are different; the aperture detection device further includes a switch driver circuit 107, and the switch driver circuit 107 is electrically connected to the control module 101 and the dual filter switch 108 respectively, and is configured to control the switching between the first filter 1081 and the second filter 1082 according to the third control information of the control module 101.

[0080] As Figure 3 shown, the dual filter switch 108 includes a first filter 1081 and a second filter 1082 with different filtering ranges, and is used for switching between different scenarios. The control module 101 includes a third control information output terminal Y3, the switch driver circuit 107 includes a third control information receiving terminal X3, the third control information output terminal Y3 is electrically connected to the third control information receiving terminal X3, and the switch driver circuit 107 controls the switching between the first filter 1081 and the second filter 1082 according to the received third control information.

[0081] Among them, the dual filter switch 108 is used for the camera to switch between different scenarios, and is composed of two different filters, namely the first filter 1081 and the second filter 1082. The first filter 1081 may be an infrared cut-off filter, and the second filter 1082 may be a full-spectrum optical glass. For example, when the light is sufficient during the day, the dual filter switch 108 switches to the infrared cut-off filter, and the camera restores the true color. When the light is insufficient at night, the dual filter switch 108 switches to the full-spectrum optical glass, which can sense the auxiliary light of the infrared lamp at night, enabling the camera to make full use of all the light and making the entire picture clear.

[0082] The switch driver circuit 107 is configured to control the dual filter switch 108 to switch different filters according to the third control information. Among them, the third control information may be an analog signal or a digital signal, which is not limited in the embodiments of the present invention.

[0083] Based on the above embodiments, continue to refer to Figure 1 and Figure 3 shown, the aperture detection device further includes an adapter interface 109; the adapter interface 109 includes a first type of adapter terminal 1091 and a second type of adapter terminal 1092. The first type of adapter terminal 1091 is electrically connected to the aperture driver circuit 102 and the aperture 106 respectively, and the second type of adapter terminal 1092 is electrically connected to the switch driver circuit 107 and the dual filter switch 108 respectively.

[0084] Among them, the transfer interface 109 is used to introduce or lead out signals to facilitate connection to other devices or provide signal sources. The first type of transfer terminal 1091 is used to provide an interface for inserting the aperture 106, and the aperture drive circuit 102 controls the aperture opening size by connecting to the first type of transfer terminal 1091. The second type of transfer terminal 1092 is used to provide an interface for inserting the dual filter switch 108, and the switch drive circuit 107 controls the dual filter switch 108 to switch different filters by connecting to the second type of transfer terminal 1092. By setting the transfer interface, the wiring complexity between the device under test and the aperture detection device is simplified, facilitating the operation of the staff.

[0085] Optionally, the aperture detection device includes multiple transfer interfaces.

[0086] Specifically, the multiple transfer interfaces can be used for the aperture detection device to simultaneously detect multiple different aperture sizes of the aperture, reducing the aperture detection cost, having high mass production performance and high intelligence level.

[0087] Optionally, the spot size of the laser signal is adjustable.

[0088] Among them, the spot is a parameter of the laser, referring to the diameter of the laser emitted by the laser. Specifically, the laser signal emitted by the laser module 104 to the aperture 106 according to the received second control information has an adjustable diameter size, which can ensure that for lenses with different optical paths, the spot size of the laser can be adjusted to keep the photoelectric sensing module 105 always within the best measurement range, and at the same time ensure that the minimum width of the photoelectric sensing module 105 is greater than the beam diameter of the laser signal it receives, ensuring the maximum utilization of the photoelectric sensing module.

[0089] Continue to refer to Figure 1 and Figure 3 As shown, optionally, the aperture detection device further includes a slide rail 116; the laser module 104 is arranged on the surface of the slide rail 116 and the laser module 104 can slide along the slide rail 116.

[0090] Among them, the slide rail 116 is used to adjust the height of the laser module 104 when detecting the apertures 106 of different lens modules 103. For example, when the lens module 103 is larger, the laser module 104 can move upward along the slide rail 116, and when the lens module 103 is smaller, the laser module 104 can move downward along the slide rail 116. The number of slide rails 116 is not limited in the embodiments of the present invention. For example, there can be multiple, which can be used to adjust the heights of multiple laser modules 104 simultaneously. By arranging the laser module on the slide rail and making the laser module slide up and down, it is ensured that the detection device can adapt to the aperture detection of apertures with different lens sizes, improving the applicable scenarios and scope of the aperture detection device.

[0091] Figure 4The following is a schematic diagram of the hardware connection of another aperture detection device provided by Embodiment 1 of the present invention, as shown in Figure 4 shown, the aperture detection device further includes a signal amplification module 110; the signal amplification module 110 is electrically connected to the photoelectric sensing module 105 and the control module 101 respectively, and is used for amplifying the voltage signal and then transmitting it to the control module 101.

[0092] Among them, the signal amplification module 110 is used for amplifying the electrical signal output by the photoelectric sensing module 105, and then transmitting it to the control module 101. The control module 101 automatically reads the amplified voltage signal through the voltage signal receiving end XV, and performs control processing accordingly. By using the signal amplification module to amplify the electrical signal output by the photoelectric sensing module, the detection result can be ensured to be more accurate.

[0093] Continuing as shown in Figure 4 shown, the aperture detection device further includes an aperture resistance detection module 111; the aperture resistance detection module 111 is electrically connected to the control module 101 and the aperture 106 respectively, and is used for detecting the resistance information of the aperture 106 according to the fourth control information of the control module 101, and feeding back the resistance to the control module 101.

[0094] Specifically, the aperture resistance detection module 111 includes a fourth control information receiving end X4 and a resistance value output end YR, the control module 101 includes a fourth control information output end Y4 and a resistance value receiving end XR, the fourth control information receiving end X4 is electrically connected to the fourth control information output end Y4, and the resistance value output end YR is electrically connected to the resistance value receiving end XR. In this way, the control module 101 outputs the fourth control information to the aperture resistance detection module 111 through the fourth control information output end Y4, and the aperture resistance detection module 111 detects the resistance of the aperture 106 according to the received fourth control information, and outputs the resistance value to the control module 101 through the resistance output end YR.

[0095] Among them, the aperture resistance detection module 111 is used for detecting the resistance value of the aperture 106, and the opening speed of the aperture 106 can be judged by the resistance value of the aperture 106. In this way, it can be confirmed whether the aperture is good through the resistance value of the aperture 106, ensuring high accuracy of subsequent aperture detection.

[0096] Referring to Figure 1 and Figure 4 shown, the aperture detection device further includes a detection prompt module 112; the detection prompt module 112 includes at least two light-emitting elements with different light-emitting colors, and the light-emitting elements are used for emitting light according to the detection result of the aperture detection device.

[0097] Among them, the detection prompt module 112 is used to provide a light prompt based on the detection result of the aperture detection device. Two light-emitting elements with different light colors respectively represent two different detection results. For example, they can be two different light-emitting elements of red and green. Green light indicates that the detection result is good, and red light indicates that the detection result is unqualified. The specific installation position of the detection prompt module 112 is not limited in the embodiment of the present invention. For example, it can be on the side next to the adapter interface. By setting up the detection prompt module, the staff can more intuitively confirm whether the aperture is good, thereby improving the detection efficiency.

[0098] Continue as Figure 1 and Figure 4 As shown, the aperture detection device further includes a start button 113 ; the start button 113 is electrically connected to the control module 101 , and the control module 101 is used to control the operation of the aperture detection device according to the pressing state of the start button 113 .

[0099] The start button 113 is used to control the operation of the aperture detection device. The specific installation location is not limited in this embodiment; for example, it can be located next to the detection prompt module 112. The number of start buttons is also not limited in this embodiment; for example, there can be one start button 113 for each aperture 106 detection position. Specifically, the start button 113 is used to control various circuits. Pressing the start button 113 controls the aperture resistance detection module 111 to detect the resistance value of the aperture 106. When the resistance value passes the test, the laser turns on and the aperture aperture detection process automatically proceeds.

[0100] Example 2

[0101] Figure 5 The flowchart of the aperture detection method of the second embodiment of the present invention is applicable to the aperture detection device of the aperture described in the above embodiment, and is specifically executed by the aperture detection device described in the first embodiment of the present invention. Figure 5 The specific steps are as follows:

[0102] S510 : Sending first control information to an aperture driving circuit, so that the aperture driving circuit controls an opening aperture of the aperture according to the first control information.

[0103] Specifically, the control module sends the first control information to the aperture driving circuit through the first control information output terminal, and the aperture driving circuit controls the opening aperture of the aperture according to the received first control information.

[0104] S520: Sending second control information to the laser module, so that the laser module transmits a laser signal to the aperture according to the second control information. The laser signal forms a modulated laser signal after passing through the aperture. The modulated laser signal includes aperture information of the aperture.

[0105] Specifically, the control module sends second control information to the laser module through the second control information output terminal. The laser module emits a laser signal to the aperture according to the received second control information. The aperture obtains different light incident amounts according to different opening apertures. In this way, the laser signal can form a modulated laser signal after passing through the aperture, and the modulated laser signal can reflect the aperture size of the aperture.

[0106] S530. Receive the voltage signal transmitted by the photoelectric sensing module and determine the opening aperture of the aperture according to the voltage signal; the voltage signal is obtained by converting the modulated laser signal.

[0107] Specifically, the control module automatically reads the voltage signal transmitted by the photoelectric sensing module through the voltage signal receiving terminal. The voltage signal is obtained by the photoelectric sensing module according to the changing modulated laser signal. In this way, the voltage signal received by the control module also changes, and the voltage signal is judged and processed.

[0108] In summary, adopting the above technical solution, by sending different control information to the aperture drive circuit and the laser module respectively, it is ensured that different modulated laser signals can always be received during the actuation of the aperture, and further the information of the opening aperture size of the aperture is obtained according to the modulated laser signal, realizing the detection of the opening aperture of the aperture, and the detection method is simple and efficient.

[0109] Figure 6 This is a flowchart of another method for detecting the aperture of an aperture provided in the second embodiment of the present invention. As Figure 6 shown, it mainly includes the following steps:

[0110] S610. Send third control information to the switch drive circuit to enable the switch drive circuit to control the switching between the first filter and the second filter according to the third control information.

[0111] Specifically, the control module sends third control information to the switch drive circuit through the third control information output terminal. The switch drive circuit controls the switching between the first filter and the second filter according to the received third control information. In this way, the detection of the dual-filter switch is realized.

[0112] S620. Send first control information to the aperture drive circuit to enable the aperture drive circuit to control the opening aperture of the aperture according to the first control information.

[0113] S630. Send second control information to the laser module to enable the laser module to emit a laser signal to the aperture according to the second control information. The laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes the aperture information of the aperture.

[0114] S640 receives the voltage signal transmitted by the photoelectric sensing module and determines the opening aperture of the aperture according to the voltage signal; the voltage signal is obtained by converting the modulated laser signal.

[0115] It should be noted that the above-mentioned embodiment can detect the dual filter switch before detecting the aperture. After the detection is completed, the dual filter switch automatically switches to the white glass sheet state, and then the aperture is detected.

[0116] In summary, the technical solution provided by the embodiment of the present invention controls the switching between the first filter and the second filter by adding a third control information sent to the switch drive circuit, ensuring the detection of the dual filter switch.

[0117] Figure 7 This is a flowchart of another method for detecting the aperture of an aperture provided in the second embodiment of the present invention. As Figure 7 shown, it mainly includes the following steps:

[0118] S710 sends a fourth control information to the aperture resistance detection module, so that the aperture resistance detection module detects the resistance of the aperture according to the fourth control information.

[0119] Specifically, the control module sends the fourth control information to the aperture resistance detection module through the fourth control information output terminal. The aperture resistance detection module detects the resistance of the aperture according to the fourth control information and feeds back the resistance value to the control module through the resistance value output terminal.

[0120] S720 receives the resistance information fed back by the aperture resistance detection module and determines whether the resistance information meets the preset resistance requirements.

[0121] Among them, the preset resistance is the standard threshold set inside the control module. The specific preset resistance value is not limited in the embodiment of the present invention.

[0122] Specifically, the control module obtains the resistance value of the aperture detected by the aperture resistance detection module through the resistance value receiving end and judges it. If the resistance value of the aperture is within the range of the preset resistance value, it indicates that the aperture is good; otherwise, it indicates that the aperture is unqualified.

[0123] S730 sends a first control information to the aperture drive circuit, so that the aperture drive circuit controls the opening aperture of the aperture according to the first control information.

[0124] S740 sends a second control information to the laser module, so that the laser module emits a laser signal to the aperture according to the second control information. The laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes the aperture information of the aperture.

[0125] S750 receives the voltage signal transmitted by the photoelectric sensing module and determines the opening aperture of the aperture according to the voltage signal; the voltage signal is obtained by converting the modulated laser signal.

[0126] In summary, by detecting the resistance of the aperture before the actual aperture detection and continuing with the aperture detection when the resistance detection is qualified, it is possible to avoid the influence of unqualified aperture resistance on the aperture detection and improve the accuracy of the aperture detection.

[0127] Figure 8 The following is a flowchart of another method for detecting the aperture of an aperture provided in the second embodiment of the present invention. As Figure 8 shown, it mainly includes the following steps:

[0128] S810 calibrates the aperture detection device.

[0129] Specifically, long-pressing the start button 113 can calibrate the aperture detection device. For example, long-press the start button 113 for more than half a second. Further, calibrating the aperture detection device can be to perform the aperture detection of the aperture using a good lens module, calibrate all the parameters in the control module according to the detection results, and detect other apertures that have not been detected according to the calibrated parameters, so as to ensure that the preset parameters in the aperture detection device are correct and effective and ensure the accuracy of subsequent aperture detection. It should be noted that each type of lens only needs to be calibrated once before detection, so as to reduce the calibration times of the same type of lens before detection and improve the detection efficiency.

[0130] S820 sends the first control information to the aperture drive circuit so that the aperture drive circuit controls the opening aperture of the aperture according to the first control information.

[0131] S830 sends the second control information to the laser module so that the laser module emits a laser signal to the aperture according to the second control information. The laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes the aperture information of the aperture.

[0132] S840 receives the voltage signal transmitted by the photoelectric sensing module and determines the opening aperture of the aperture according to the voltage signal; the voltage signal is obtained by converting the modulated laser signal.

[0133] In summary, calibrating the entire aperture detection device before the aperture detection ensures that the preset parameters in the aperture detection device are correct and effective and ensures the accuracy of subsequent aperture detection.

[0134] It should be noted that Figure 6 、 Figure 7 and Figure 8 The three embodiments shown can be combined with each other. For example, combining the Figure 6 shown technical solution with the Figure 7The technical solutions shown are combined, that is, the filter is switched and the aperture resistor is detected before the actual aperture detection; for another example, Figure 6 the technical solutions shown, Figure 7 the technical solutions shown, and Figure 8 the technical solutions shown are combined, that is, the filter is switched, the aperture resistor is detected, and the aperture detection device is calibrated before the actual aperture detection. The embodiments of the present invention do not limit the specific combination methods. As long as there is no conflict in the combined solutions, they all fall within the protection scope of the embodiments of the present invention.

[0135] Based on the above embodiments, Figure 9 FIG. is a flowchart of a method for calibrating an aperture detection device of an aperture provided in the second embodiment of the present invention. As Figure 9 shown, the specific steps are as follows:

[0136] S910. Preset calibration reference values, which include a maximum calibration reference value and a minimum calibration reference value.

[0137] Among them, the calibration reference value refers to the determination reference value set by the control module according to the aperture of the lens module with good detection, including a maximum calibration reference value and a minimum calibration reference value. In order to ensure that the aperture detection device can adapt to all lens modules, the preset calibration reference value does not select extreme values, for example, selects the intermediate value.

[0138] S920. Receive the voltage signals transmitted by the photoelectric sensing module at intervals of a preset time. The voltage signals at least include all voltage signals within one actuation period of the aperture.

[0139] Among them, the preset time is the time set inside the control module. The specific time is not limited in the embodiments of the present invention. For example, it can be 10 ms. The data transmission module used by the control module to receive the voltage signals transmitted by the photoelectric sensing module is not limited in the embodiments of the present invention. For example, direct memory access (DMA) can be used for data transmission, which can improve the data transmission speed.

[0140] The actuation period refers to the time taken for the aperture to open and close. The specific time is not limited in the embodiments of the present invention. For example, it can be 4 s.

[0141] Specifically, the control module receives the voltage signals transmitted by the photoelectric sensing module at intervals of a preset time. In order to ensure that all the voltage signals received by the control module at least include all the voltage signals within one actuation period of the aperture, it is necessary to continuously receive enough voltage signals. For example, if the preset time is 10 ms and the actuation period of the aperture is 4 s, then the control module receives at least 400 voltage signals, for example, 500 voltage signals, to ensure that all the voltage signals within one actuation period of the aperture are included.

[0142] S930. Obtain the maximum voltage signal among all voltage signals and its physical address, and obtain the minimum voltage signal among all voltage signals and its physical address.

[0143] Specifically, the control module further processes according to all the received voltage signals, obtains the maximum voltage signal and the minimum voltage signal among all the voltage signals, and their corresponding physical addresses respectively. According to the physical addresses, other voltage signals adjacent to the maximum voltage signal and the minimum voltage signal can be obtained.

[0144] S940. Determine the maximum voltage value according to the maximum voltage signal and its physical address, and determine the minimum voltage value according to the minimum voltage signal and its physical address.

[0145] Specifically, obtain several data adjacent to the maximum voltage signal according to the maximum voltage signal and its physical address, calculate the difference between the adjacent data, further obtain that the difference is less than the internal set value of the control module, and then calculate the average value of this adjacent data, which is the maximum voltage value. Similarly, the minimum voltage value can be obtained according to the minimum voltage signal and its physical address. Among them, the number of data adjacent to the maximum voltage signal or the minimum voltage signal is not limited in the embodiments of the present invention. For example, it can be 10; the internal set value of the control module is also not specifically limited in the embodiments of the present invention. For example, it can be 4.

[0146] S950. Determine whether the calibration result meets the preset requirements according to the maximum voltage value, the maximum calibration reference value, the minimum voltage value, and the minimum calibration reference value.

[0147] Specifically, compare the maximum voltage value and the minimum voltage value obtained in the previous step with the preset maximum calibration reference value and minimum calibration reference value. If the maximum voltage value and the minimum voltage value are respectively less than and greater than the maximum calibration reference value and the minimum calibration reference value, it is considered that the maximum voltage value and the minimum voltage value meet the set conditions, otherwise, recalibration is required.

[0148] S960. When the lens meets the preset requirements, set thresholds for the maximum voltage value and the minimum voltage value to obtain the determination standard threshold of the aperture detection device.

[0149] Specifically, obtain the maximum voltage value and the minimum voltage value that meet the preset requirements according to the determination result of the previous step, and set them as the determination standard threshold of the aperture detection device. In this way, when detecting an aperture that has not been detected, the determination standard of the control module is this threshold.

[0150] Figure 10This is a specific implementation flowchart of an aperture detection method provided in the second embodiment of the present invention. To further illustrate the specific implementation method of the aperture detection method, an example will be described in combination. Refer to Figure 10 As shown, it should be noted that after a project is detected as qualified, it will automatically jump to the next detection project. The detection order is not limited in this embodiment. Figure 10 This is just one example. The main steps include the following:

[0151] S1010. Press the start button to start the detection.

[0152] S1020. The aperture resistance detection module detects the resistance of the aperture. For the specific steps, refer to Figure 7 Steps S710 and S720 in

[0153] S1030. The control module determines whether the resistance of the aperture meets the preset resistance requirement. Specifically, if the resistance information meets the preset resistance requirement, proceed to the next step; otherwise, the light-emitting element in the detection prompt module lights up red, and the detection ends.

[0154] S1040. Automatically detect the dual filter switch and determine whether the detection result is good.

[0155] Specifically, if the detection result of the dual filter switch is good, proceed to the next step; otherwise, the light-emitting element in the detection prompt module lights up red, and the detection ends.

[0156] S1050. The dual filter switch automatically switches to the white glass sheet state and automatically starts the aperture detection of the aperture. For the specific steps, refer to Figure 5 Steps S510 and S520 in

[0157] S1060. The control module determines whether the opening aperture of the aperture meets the requirements according to the voltage signal transmitted by the photoelectric sensing module.

[0158] Specifically, if the maximum value and the minimum value of the voltage signal meet the determination standard threshold, it is determined that the aperture is good, and the light-emitting element in the detection prompt module lights up green; otherwise, it is determined that the aperture is unqualified, and the light-emitting element in the detection prompt module lights up red.

[0159] A method for detecting the aperture of an aperture provided by an embodiment of the present invention, wherein a control module sends first control information to an aperture driving circuit to control the opening aperture of the aperture by the aperture driving circuit; and sends second control information to a laser module to cause the laser module to emit a laser signal to the aperture, and the laser signal obtained by the aperture forms a modulated laser signal, wherein the modulated laser signal includes aperture information of the aperture; a photoelectric sensing module converts the modulated laser signal into a voltage signal, and the control module determines the opening aperture of the aperture according to the received voltage signal. In this way, the accurate detection of the apertures of multiple apertures is realized, manpower is saved, the detection cost is reduced, and at the same time, the mass production performance is high and the degree of intelligence is high.

[0160] Note that the above is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An aperture detection device for an aperture, characterized in that, It includes a control module, an aperture driving circuit, a lens module, a laser module, and a photoelectric sensing module; the aperture is disposed in the lens module; The aperture driving circuit is electrically connected to the control module and the aperture respectively, and is configured to control the opening aperture of the aperture according to the first control information of the control module; The laser module is electrically connected to the control module, and is configured to emit a laser signal to the aperture according to the second control information of the control module. The laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes the aperture information of the aperture; wherein, the modulated laser signal is a laser signal with different light incident amounts, and the different light incident amounts correspond to different opening aperture sizes of the aperture; The photoelectric sensing module is located on the transmission path of the modulated laser signal, and the photoelectric sensing module is electrically connected to the control module, and is configured to receive the modulated laser signal and convert the modulated laser signal into a voltage signal and then transmit it to the control module; The control module is configured to determine the opening aperture of the aperture according to the voltage signal.

2. The aperture detection device according to claim 1, characterized in that The aperture detection device is further configured to detect a dual filter switcher; The dual filter switcher includes a first filter and a second filter, and the filtering ranges of the first filter and the second filter are different; The aperture detection device further includes a switcher driving circuit, and the switcher driving circuit is electrically connected to the control module and the dual filter switcher respectively, and is configured to control the switching between the first filter and the second filter according to the third control information of the control module.

3. The aperture detection device according to claim 2, wherein The aperture detection device further includes an adapter interface; The adapter interface includes a first type of adapter terminal and a second type of adapter terminal. The first type of adapter terminal is electrically connected to the aperture driving circuit and the aperture respectively, and the second type of adapter terminal is electrically connected to the switcher driving circuit and the dual filter switcher respectively.

4. The aperture detection device according to claim 3, characterized in that, The aperture detection device includes a plurality of the adapter interfaces.

5. The aperture detection device according to claim 1, wherein, The spot size of the laser signal is adjustable.

6. The pore size detection device according to claim 1, wherein The aperture detection device further includes a slide rail; The laser module is disposed on the surface of the slide rail and the laser module can slide along the slide rail.

7. The aperture detection device according to claim 1, characterized in that, The aperture detection device further includes a signal amplification module; The signal amplification module is electrically connected to the photoelectric sensing module and the control module respectively, and is configured to amplify the voltage signal and then transmit it to the control module.

8. The pore size detection device according to claim 1, characterized in that, The aperture detection device further includes an aperture resistance detection module; The aperture resistance detection module is electrically connected to the control module and the aperture respectively, and is configured to detect the resistance information of the aperture according to the fourth control information of the control module and feedback the resistance to the control module.

9. The aperture detection device according to claim 1, characterized in that, The aperture detection device further includes a detection prompt module; The detection prompt module includes at least two light-emitting elements with different light-emitting colors, and the light-emitting elements are configured to emit light according to the detection result of the aperture detection device.

10. The aperture detection device according to claim 1, characterized in that, The aperture detection device further includes a lens base; The lens module is placed in the lens base.

11. The aperture detection device according to claim 1, wherein The aperture detection device further includes a start button; The start button is electrically connected to the control module, and the control module is configured to control the operation of the aperture detection device according to the pressed state of the start button.

12. The aperture detection device according to claim 1, characterized in that The aperture driving circuit includes a pulse width modulation circuit.

13. A method for detecting the aperture of an aperture, applied to the aperture detection device according to any one of claims 1-12, characterized in that, Including: Sending first control information to the aperture driving circuit so that the aperture driving circuit controls the opening aperture of the aperture according to the first control information; Sending second control information to the laser module so that the laser module emits a laser signal to the aperture according to the second control information, and the laser signal forms a modulated laser signal after passing through the aperture, and the modulated laser signal includes aperture information of the aperture; wherein, the modulated laser signal is a laser signal with different light incident amounts, and the difference in the light incident amounts corresponds to the difference in the opening aperture sizes of the aperture; Receiving the voltage signal transmitted by the photoelectric sensing module and determining the opening aperture of the aperture according to the voltage signal; the voltage signal is obtained by converting the modulated laser signal.

14. The pore size detection method according to claim 13, characterized in that, The aperture detection device is further configured to detect a dual filter switch. The dual filter switch includes a first filter and a second filter, and the filtering ranges of the first filter and the second filter are different. The aperture detection device further includes a switch driving circuit, and the switch driving circuit is electrically connected to the control module and the dual filter switch respectively. The aperture detection method further includes: Sending third control information to the switch driving circuit so that the switch driving circuit controls the switching between the first filter and the second filter according to the third control information.

15. The pore size detection method according to claim 13, characterized in that The aperture detection device further includes an aperture resistance detection module. Before sending the first control information to the aperture driving circuit, it further includes: Sending fourth control information to the aperture resistance detection module so that the aperture resistance detection module detects the resistance of the aperture according to the fourth control information. Receiving the resistance information fed back by the aperture resistance detection module and determining whether the resistance information meets a preset resistance requirement.

16. The pore size detection method according to claim 13, characterized in that, Calibrating the aperture detection device.

17. The pore size detection method according to claim 16, wherein Calibrating the aperture detection device includes: Presetting calibration reference values, where the calibration reference values include a maximum calibration reference value and a minimum calibration reference value; Receiving the voltage signal transmitted by the photoelectric sensing module at preset time intervals, and the voltage signal includes at least all voltage signals within one actuation period of the aperture; Obtaining the maximum voltage signal and its physical address among all the voltage signals, and obtaining the minimum voltage signal and its physical address among all the voltage signals; Determining the maximum voltage value according to the maximum voltage signal and its physical address, and determining the minimum voltage value according to the minimum voltage signal and its physical address; Determining whether the lens meets a preset requirement according to the maximum voltage value, the maximum calibration reference value, the minimum voltage value, and the minimum calibration reference value; When the lens meets the preset requirement, setting thresholds for the maximum voltage value and the minimum voltage value to obtain the determination criterion of the aperture detection device.

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