WO2022127757A1 - 电子设备和控制方法 - Google Patents

电子设备和控制方法 Download PDF

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Publication number
WO2022127757A1
WO2022127757A1 PCT/CN2021/137691 CN2021137691W WO2022127757A1 WO 2022127757 A1 WO2022127757 A1 WO 2022127757A1 CN 2021137691 W CN2021137691 W CN 2021137691W WO 2022127757 A1 WO2022127757 A1 WO 2022127757A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
camera
cavity
camera module
magnetic field
Prior art date
Application number
PCT/CN2021/137691
Other languages
English (en)
French (fr)
Inventor
朱雷
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2023535778A priority Critical patent/JP2023552656A/ja
Priority to EP21905686.8A priority patent/EP4266665A4/en
Publication of WO2022127757A1 publication Critical patent/WO2022127757A1/zh
Priority to US18/334,631 priority patent/US20230328377A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/681—Motion detection
    • H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/561—Support related camera accessories
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/65—Control of camera operation in relation to power supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Definitions

  • the present application belongs to the field of electronic information technology, and specifically relates to an electronic device and a control method.
  • EIS electronic image stabilization
  • OIS optical image stabilization
  • electronic image stabilization mainly includes: "natural image stabilization” realized by increasing the camera's sensitivity (ISO) and “digital image stabilization” realized by pixel compensation or other computing methods.
  • the anti-shake processing does not require the assistance and participation of any components, and is completely realized by digital processing technology.
  • Optical image stabilization is mainly through the setting of optical components, for example, by moving the lens or the photosensitive plate for optical path compensation, to avoid or reduce the lens shake phenomenon in the process of capturing optical signals, thereby improving the image quality.
  • the embodiments of the present application provide an electronic device and a control method, which can solve the problem of camera shake that occurs in a three-dimensional space such as vertical lens reverse movement and shooting.
  • an embodiment of the present application provides an electronic device, including a controller, a power manager, a detector, and a camera device;
  • the camera device includes a camera module and a cavity, and the camera module is provided with a permanent a magnet, the inner wall of the cavity is provided with a coil, the camera module is provided in the cavity;
  • the controller is connected to the detector, the power manager and the camera device respectively, the power supply A manager is connected to the camera device.
  • an embodiment of the present application provides a control method, which is applied to the electronic device described in the first aspect.
  • the method includes: when a camera function in a camera device is turned on, controlling a detector to detect the electronic device jitter information of the device; obtain target control information according to the jitter information, and the target control information includes the magnitude and/or direction of the electrical signal; supply the coil corresponding to the target control information through the power manager
  • the target electrical signal is used to adjust the magnetic field state of the second magnetic field generated by the coil, so that the camera module performs a predetermined movement under the action of the first magnetic field and the second magnetic field, and the predetermined movement includes displacement and /or angular deflection, the first magnetic field is generated by a permanent magnet in the camera device.
  • an electronic device and a control method are provided, wherein the electronic device includes a controller, a power manager, a detector, and a camera device; the camera device includes a camera module and a cavity, and the camera A permanent magnet is arranged on the module, a coil is arranged on the inner wall of the cavity, and the camera module is arranged in the cavity; the controller, the detector, the power manager, and the camera device The power manager is connected to the camera device, so that when the electronic device is used for mobile shooting, the shooting direction of the camera device in the electronic device remains unchanged, so that the electronic device can be Instantaneous anti-shake of the device in three-dimensional space.
  • FIG. 1 is a schematic diagram of a circuit structure of an electronic device provided by an exemplary embodiment of the present application.
  • FIG. 2a is a schematic structural diagram of a camera device provided by an exemplary embodiment of the present application.
  • FIG. 2b is a schematic structural diagram of a camera module provided by an exemplary embodiment of the present application.
  • FIG. 2c is a schematic structural diagram of a cavity provided by an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of force analysis of a camera module provided by an exemplary embodiment of the present application.
  • FIG. 4 is a schematic diagram of a magnetic recovery process provided by an exemplary embodiment of the present application.
  • FIG. 5a and FIG. 5b are schematic diagrams of the anti-shake principle of the electronic device provided by an exemplary embodiment of the present application, respectively.
  • FIG. 6 is a schematic flowchart of a control method provided by an exemplary embodiment of the present application.
  • An exemplary embodiment of the present application provides an electronic device, which may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle-mounted electronic device, a wearable device, and an ultra-mobile personal computer (ultra-mobile personal computer).
  • computer, UMPC), netbook, or personal digital assistant (personal digital assistant, PDA), etc. the embodiments of the present application do not make specific limitations. It should be noted that the following embodiments only take the electronic device as a mobile phone as an example to describe the technical solutions provided in this application.
  • the electronic device includes a camera 10, a controller 20, a detector 30 and a power manager 40; the controller 20, the detector 30, the power manager 40, the camera The devices 10 are respectively connected, and the power manager 40 is connected to the camera device 10 .
  • the camera device 10 may include a camera module 11 and a cavity 12, the camera module 11 is provided with a permanent magnet 13, the inner wall of the cavity 12 A coil 14 is provided, and the camera module 11 is arranged in the cavity 12 .
  • the permanent magnet 13 is used to generate a first magnetic field
  • the coil 14 is used to generate a second magnetic field when energized, so that the camera module 11 can generate the first magnetic field generated by the permanent magnet 13 and the
  • the predetermined motion such as displacement and/or angular deflection, is performed under the combined action of the second magnetic field generated by the coil 14, so that when the electronic device is used for moving photography, the camera module located in the electronic device can
  • the absolute spatial position of the group 11 remains unchanged, that is, the shooting direction of the camera 10 does not change, so as to realize the instantaneous anti-shake of the electronic device (ie, the camera 10) in three-dimensional space, thereby ensuring that the captured pictures or The quality of the video satisfies the user experience.
  • the permanent magnet 13 may be separately disposed on the surface of the camera module 11 , or the permanent magnet 13 is made of a permanent magnet material in the camera module 11 components, such as the casing of the camera module 11.
  • the camera module 11 includes at least two surfaces, and each of the permanent magnets 13 is respectively disposed on at least two of the surfaces (that is, different shells). body).
  • the permanent magnets 13 may correspond to the surfaces one-to-one, or a plurality of permanent magnets may be arranged on one surface, or the permanent magnets 13 may be arranged on a part of the surface of the camera module 11 . No restrictions.
  • the first magnetic field generated by the permanent magnet located on the first surface is different from the first magnetic field generated by the permanent magnet located on the second surface.
  • the direction of the first magnetic field generated by the permanent magnet is opposite, and the first surface is arranged opposite to the second surface. That is, a plurality of the permanent magnets 13 can be respectively disposed on different surfaces of the camera module 11, and the directions of the first magnetic fields generated by the permanent magnets 13 on the opposite surfaces are opposite, so that It is ensured that the magnetic flux in the camera module is 0, so as to avoid the influence of the magnetic field on the image quality during imaging.
  • the permanent magnet 13 may be made of, but not limited to, a natural magnet or a synthetic magnet.
  • the number of the coils 14 may be multiple, the cavity 12 includes at least two inner walls corresponding to the coils one-to-one, and the coils are respectively arranged on at least two of the inner walls.
  • the cavity is a square cavity as shown in FIG. 2c
  • the coil 14 can be a square on the inner wall of the cavity as shown in FIG.
  • the camera module 11 can generate a plurality of first magnetic fields generated by a plurality of the permanent magnets 13 and a plurality of second magnetic fields generated by the plurality of the coils 14 Under the joint action of the camera module, it is suspended in the cavity 12, so as to avoid the possible collision between the camera module 11 and the cavity 12 during the mobile shooting process using the electronic device, thereby avoiding the camera module 11 and the cavity 12. Group 11 is damaged, extending the life of electronic equipment.
  • the coil 14 may include at least two sub-coils, and the at least two sub-coils are respectively connected to the power manager, and the power manager 40 is configured to generate power for the at least two sub-coils.
  • the magnetic force of each sub-coil can be controlled independently, so that when the electronic device is used for shooting, the flipping and twisting of the camera module 11 in the cavity 12 can be realized by controlling the magnetic force difference of each sub-coil. Ensure the control accuracy of the camera module 11 .
  • the camera module 11 is suspended in the cavity 12 under the combined action of the first magnetic field and the second magnetic field, then the camera module 11
  • the force analysis can be shown in FIG. 3 , wherein F1-F6 respectively represent the magnetic force on the six surfaces of the camera module 11 , and G indicates the gravity of the camera module 11 .
  • the magnitude of the second magnetic field (magnetic force) generated by the coil 14 can be controlled by adjusting the direction and/or magnitude of the electrical signal (eg, current signal) supplied to the coil 14 and/or direction.
  • the spatial position of the camera module 11 in the cavity 12 can be controlled by adjusting the magnetic force in the six directions shown in FIG.
  • the violent shaking process that occurs during the mobile shooting process is transformed into a slow Steady-state change process, so as to achieve physical anti-shake (instantaneous anti-shake) during the shooting process.
  • the electronic device is equipped with a camera module 11 with a convex lens to achieve anti-shake close to ⁇ 45°, that is, this embodiment gives The resulting camera device 10 or electronic device can realize anti-shake at a larger angle, and the application environment is wider.
  • the cavity 12 may be, but not limited to, one of a cube cavity, a cuboid cavity, and a spherical cavity.
  • the coil 14 may be disposed on each inner wall of the cube cavity.
  • the coils located on different inner walls may be the same or different, which can be set according to actual needs.
  • the cavity 12 may include a first side wall 121 and a second side wall 122 opposite to each other, the first side wall 121 is provided with a first lens hole, the The second side wall 122 is provided with a second lens hole corresponding to the first lens hole; lenses are respectively installed at the first lens hole and the second lens hole, and the lens of the camera module faces the
  • the first lens hole is used to ensure that the magnetic fields generated by the coil 14 located on the first side wall 121 and the coil 14 on the second side wall 122 are balanced, thereby ensuring the reliability of image stabilization during imaging. sex.
  • the detector 30 is configured to detect the shaking information of the electronic device during the imaging process, wherein the shaking information may include but not limited to at least one of longitude/latitude displacement information, altitude information, and rotation angle.
  • the detector 30 starts to detect the shaking information of the electronic device in real time.
  • the detector 30 may be, but not limited to, a gyroscope, and may be disposed on a PCB board of the electronic device.
  • the controller 20 is used to realize the control of the detector 30 , the power manager 40 , and the camera 10 , and to control the jitter information when receiving the jitter information sent by the detector 30 .
  • the analysis is performed to obtain target control information, and the target control information is sent to the power manager 40 .
  • the target control information includes the magnitude and/or direction of an electrical signal, and the electrical signal may be a current signal or the like.
  • the controller 20 can be connected to the camera module 11 in the camera device 10 through a flexible circuit board (Flexible Printed Circuit Board, FPC).
  • FPC Flexible Printed Circuit Board
  • the power manager 40 is used to implement power management for each component in the electronic device, such as supplying power, powering off, adjusting the size and direction of electrical signals, and the like.
  • the power manager 40 when receiving the target control information sent by the controller 20, the power manager 40 supplies the coil 14 with a target electrical signal corresponding to the target control information to adjust the second The magnetic field state of the magnetic field, so that the camera module 11 performs a predetermined movement under the action of the first magnetic field and the second magnetic field, and the predetermined movement includes displacement and/or angular deflection.
  • the target electrical signal may be a voltage signal or a current signal.
  • the power manager 40 first determines that the target control information is required when receiving the target control information.
  • a target coil coil or sub-coil that performs power management (such as adjustment of the magnitude or/and direction of an electrical signal), and then provides the target coil with an electrical signal that matches the target control information, thereby ensuring reliable control results sex.
  • the cavity 12 is a cube cavity, and each inner wall is provided with a coil 14, and the camera module 11 maintains a stable state of magnetic levitation when using a mobile phone to take pictures normally.
  • the detector 30 is controlled to detect mobile phone shake information in real time, and feed back the detected shake information (latitude and longitude displacement, altitude, rotation angle, etc.) to the controller 20 .
  • the controller 20 analyzes and obtains target control information according to the received jitter information, that is, information such as the current magnitude and/or direction of each coil 14 required for the spatial position correction of the camera module 11, and The target control information is passed to the power manager 40 .
  • the power manager 40 supplies a target electrical signal corresponding to the target control information to the coil, so that the coil 14 generates a magnetic field change, and at the same time, the magnitude and direction of the magnetic force received by the camera module 11 in the magnetic field change. , and then make the camera module 11 perform corresponding displacement and rotation under the action of the magnetic force in each direction, so that the adjusted absolute spatial position of the camera module 11 does not change (as shown in Figure 5a), that is, after the mobile phone shakes, the camera module The shooting direction of group 11 does not change, so that instant anti-shake is achieved.
  • the current in the coil 14 returns to the initial state (ie, the state before shaking).
  • the magnetic force on the camera module 11 is not directly reduced to the initial state, but gradually decreases in a slow process. It is as small as the initial value.
  • the camera module also slowly displaces and rotates, so as to achieve anti-shake in the whole process of shooting, and after the magnetic force finally disappears, the camera module 11 returns to the original space Relative position, maintain magnetic levitation state. It should be noted that 11 shown in FIGS.
  • 5 a and 5 b is a camera module
  • 12 is a cavity
  • 123 is a lens, only to illustrate the changing state of the spatial position of the camera module 11 in the cavity 12 .
  • the camera module 11 is blocked by the lens 123 and is located in the cavity 12 .
  • the aforementioned electronic equipment given in this embodiment uses the magnetic levitation technology, so that when the electronic equipment is used for moving shooting, the spatial absolute position of the camera module 11 does not change, that is, the shooting direction of the camera 10 does not change. change, so as to realize the instantaneous anti-shake of the electronic device in three-dimensional space.
  • the electronic device provided in this embodiment has a lighter and thinner structure and smaller volume, which is conducive to realizing a light and thin design of the whole machine, has a larger anti-shake angle, and has a wide range of adaptability.
  • FIG. 6 it is a schematic flowchart of a control method 600 provided by an exemplary embodiment of the present application.
  • the method is applied to the electronic devices described in the foregoing embodiments, and can be specifically implemented by hardware installed in the electronic device 1010 and/or or software execution.
  • the method includes the following steps.
  • the shaking information includes at least one of longitude/latitude displacement information, altitude information, and rotation angle.
  • controller can analyze the jitter information to obtain target control information, which is not limited in this embodiment.
  • S630 supply a target electrical signal corresponding to the target control information to the coil through the power manager, so as to adjust the magnetic field state of the second magnetic field generated by the coil, so that the camera module is in the first
  • a predetermined motion is performed under the action of the magnetic field and the second magnetic field, the predetermined motion includes displacement and/or angular deflection, and the first magnetic field is generated by a permanent magnet in the imaging device.
  • a detector may be used to detect the jitter information of the electronic device during the moving shooting process, and then target control information may be obtained according to the jitter information, and finally the power supply manager may be used to supply the coil with the The target electrical signal corresponding to the target control information is used to adjust the magnetic field state of the second magnetic field generated by the coil, so that the camera module can perform operation under the action of the first magnetic field and the second magnetic field generated by the permanent magnet.
  • the predetermined movement includes displacement and/or angular deflection, so that when the electronic device is used for moving photography, the photographing direction of the camera device does not change, so that the camera device can move in a three-dimensional space Instantaneous anti-shake.
  • the execution subject may be a control device, or a control module in the control device for executing the control method.
  • the control device provided by the embodiment of the present application is described by taking the control device executing the control method as an example in the embodiment of the present application.
  • An exemplary embodiment of the present application further provides a control apparatus, which can be applied to the electronic equipment given in the foregoing embodiments, the apparatus includes a detection module, and when the camera function in the camera device is turned on, controls the detection
  • the device detects the jitter information of the electronic device; an analysis module is used to obtain target control information according to the jitter information, and the target control information includes the magnitude and/or direction of the electrical signal; an adjustment module is used to pass the power
  • the manager supplies the coil with a target electrical signal corresponding to the target control information, so as to adjust the magnetic field state of the second magnetic field generated by the coil, so that the camera module is in the first magnetic field and the second magnetic field.
  • a predetermined movement is performed under the action of a magnetic field, and the predetermined movement includes displacement and/or angular deflection, and the first magnetic field is generated by a permanent magnet in the camera device.
  • the detector detects the jitter information of the electronic device during the moving shooting process, and then analyzes according to the jitter information to obtain target control information, and finally supplies the coil with the required information through the power manager.
  • the target electrical signal corresponding to the target control information is used to adjust the magnetic field state of the second magnetic field generated by the coil, so that the camera module is under the action of the first magnetic field and the second magnetic field generated by the permanent magnet.
  • the predetermined movement includes displacement and/or angular deflection, thus, when the electronic device is used to perform mobile shooting, the shooting direction of the camera device remains unchanged, so that the camera device can be moved in three dimensions. Instantaneous image stabilization in space.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Adjustment Of Camera Lenses (AREA)

Abstract

本申请公开了一种电子设备和控制方法。其中，所述电子设备包括：包括控制器、电源管理器、检测器以及摄像装置；所述摄像装置包括摄像头模组和腔体，所述摄像头模组上设置有永磁体，所述腔体的内壁设置有线圈，所述摄像头模组设置于所述腔体内；所述控制器与所述检测器、所述电源管理器、所述摄像装置分别连接，所述电源管理器与所述摄像装置连接。

Description

电子设备和控制方法
本申请要求2020年12月17日提交在中国专利局、申请号为202011492693.2、发明名称为“电子设备和控制方法”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于电子信息技术领域，具体涉及一种电子设备和控制方法。
背景技术
随着智能手机的发展与普及，人们对智能手机上的摄像功能的要求也越来越高，甚至期待智能手机的摄像效果达到单反相机的水平。
在智能手机的使用过程中，如用户手持智能手机进行拍照时，手的抖动会造成智能手机中的摄像头模组的轻微倾斜(一般在+/-0.5度以内)，而该倾斜会引起镜头观察角度的变化，进而导致拍摄的图像随着手的抖动而处于不稳定状态，对于该抖动问题，相关技术中主要采用电子防抖(EIS)和光学防抖(OIS)两种方式实现摄像头的防抖。
其中，电子防抖主要包括：通过提高相机感光度(ISO)而实现的“自然防抖”和通过像素补偿或其他运算方式而实现的“数码防抖”两大种类，且利用电子防抖进行防抖处理时无需任何元器件的辅助和参与，完全依靠数字处理技术去实现。
光学防抖主要通过光学元器件的设置，例如，通过移动镜片或感光板进行光路补偿，来避免或者减少扑捉光学信号过程中出现的镜头抖动现象，从而提高成像质量。
但前述两种防抖方式仅可用于二维空间(X、Y轴两个方向)的防抖，而无法解决在垂直镜头反向移动拍摄等三维空间中出现的摄像抖动问题。
发明内容
本申请实施例提供一种电子设备和控制方法，能够解决在垂直镜头反向移动拍摄等三维空间中出现的摄像抖动问题。
本申请是这样实现的：
第一方面，本申请实施例提供了一种电子设备，包括控制器、电源管理器、检测器以及摄像装置；所述摄像装置包括摄像头模组和腔体，所述摄像头模组上设置有永磁体，所述腔体的内壁设置有线圈，所述摄像头模组设置于所述腔体内；所述控制器与所述检测器、所述电源管理器、所述摄像装置分别连接，所述电源管理器与所述摄像装置连接。
第二方面，本申请实施例提供了一种控制方法，应用于第一方面所述的电子设备，所述方法包括：在开启摄像装置中的摄像功能的情况下，控制检测器检测所述电子设备的抖动信息；根据所述抖动信息，得到目标控制信息，所述目标控制信息包括电信号的大小和/或方向；通过所述电源管理器向所述线圈供给与所述目标控制信息对应的目标电信号，以调整所述线圈所产生的第二磁场的磁场状态，进而使得所述摄像头模组在第一磁场以及所述第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转，所述第一磁场为所述摄像装置中的永磁体产生。
本申请实施例中，提供一种电子设备和控制方法，其中，所述电子设备包括控制器、电源管理器、检测器以及摄像装置；所述摄像装置包括摄像头模组和腔体，所述摄像头模组上设置有永磁体，所述腔体的内壁设置有线圈，所述摄像头模组设置于所述腔体内；所述控制器与所述检测器、所述电源管理器、所述摄像装置分别连接，所述电源管理器与所述摄像装置连接，由此，可使得在利用所述电子设备进行移动拍摄时，所述电子设备中的摄像装置的拍摄方向不变，从而实现所述电子设备在三维空间的瞬时防抖。
附图说明
图1是本申请一示例性实施例提供的电子设备的电路结构示意图。
图2a是本申请一示例性实施例提供的摄像装置的结构示意图。
图2b是本申请一示例性实施例提供的摄像头模组的结构示意图。
图2c是本申请一示例性实施例提供的腔体的结构示意图。
图3是本申请一示例性实施例提供摄像头模组的受力分析示意图。
图4是本申请一示例性实施例提供的磁力恢复过程示意图。
图5a和图5b分别是本申请一示例性实施例提供的电子设备的防抖原理示意图。
图6是本申请一示例性实施例提供的控制方法的流程示意图。
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，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的技术方案进行详细地说明。
本申请一示例性实施例提供一种电子设备，所述电子设备可以是但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，本申请实施例不做具体限制。需要说明的，下述各实施例中仅以电子设备为手机为例，对本申请给出的技术方案进行说明。
如图1所示，所述电子设备包括摄像装置10、控制器20、检测器30以及电源管理器40；所述控制器20与所述检测器30、所述电源管理器40、所述摄像装置10分别连接，所述电源管理器40与所述摄像装置10连接。
其中，请结合参阅图2a、图2b和图2c，所述摄像装置10可以包括摄像头模组11和腔体12，所述摄像头模组11上设置有永磁体13，所述腔体12的内壁设置有线圈14，所述摄像头模组11设置于所述腔体12内。
所述永磁体13用于产生第一磁场，所述线圈14用于在通电的情况下产生第二磁场，使得所述摄像头模组11能够在所述永磁体13产生的第一磁场以及所述线圈14产生的第二磁场的共同作用下进行预定运动，如位移和/或角度偏转，由此，可使得在利用所述电子设备进行移动拍摄时，所述位于所述电子设备中的摄像头模组11的空间绝对位置不变，也即所述摄像装置10的拍摄方向不变，从而实现所述电子设备(也即摄像装置10)在三维空间的瞬时防抖，进而确保拍摄得到的图片或视频的画质，满足用户体验。
本申请的一个或多个实施例中，所述永磁体13可以单独设置于所述摄像头模组11的表面，或者，所述永磁体13为所述摄像头模组11中采用永磁材料制成的部件，如所述摄像头模组11的壳体。
一种实现方式中，所述永磁体13可以为多个，所述摄像头模组11包括至少两个表面，各所述永磁体13分别设置于至少两个所述表面(也即，不同的壳体)。例如，所述永磁体13可以与所述表面一一对应，也可以一个表面上设置多个永磁体，或者所述摄像头模组11的部分面上设置所述永磁体13，本实施例对此不做限制。
示例性的，在所述摄像头模组11包括第一表面和第二表面的情况下，位于所述第一表面的所述永磁体所产生的第一磁场，与位于第二表面上的所述永磁体所产生的第一磁场的方向相反，所述第一表面与所述第二表面相背设置。也就是，多个所述永磁体13可分别设置于所述摄像头模组11的不同表面，且位于相背的两个表面上的所述永磁体13所产生的第一磁场的方向相反，从而保证所述摄像头模组内的磁通量为0，以避免磁场对摄像时的画质的影响。
本实施例中，所述永磁体13可以是但不限于采用天然磁石制成或人工合成磁石制成。
本申请的一个或多个实施例中，结合参阅图2c，所述线圈14可以为多个，所述腔体12包括与各所述线圈一一对应的至少两个内壁，各所述线圈分别设置于至少两个所述内壁。例如，假设所述腔体为图2c中所示的正方体腔体，那么，所述线圈14可以如图2c中所示的腔体内壁上的正方形，如虚线框或实线框，在此情况下，在向各所述线圈14通电的情况下，所述摄像头模组11能够在多个所述永磁体13产生的多个第一磁场以及多个所述线圈14产生的多个第二磁场的共同作用下，悬浮于所述腔体12内，从而可避免在利用所述电子设备进行移动拍摄过程中可能的出现摄像头模组11与腔体12之间发生碰撞的问题，进而避免摄像头模组11损坏，延长电子设备的使用寿命。
一种实现方式中，所述线圈14可以包括至少两个子线圈，至少两个所述子线圈分别与所述电源管理器连接，所述电源管理器40用于对至少两个所述子线圈产生的磁力进行单独控制，由此，在利用所述电子设备进行拍摄时，可通过控制各子所述线圈的磁力差异实现所述摄像头模组11在所述腔体12内的翻转、扭动，确保对所述摄像头模组11的控制精度。
示例性的，假设在开启电子设备的摄像功能之前，所述摄像头模组11在所述第一磁场、第二磁场的共同作用下悬浮于所述腔体12，那么，所述摄像头模组11的受力分析可以如图3所示，其中，F1-F6分别表示所述摄像头模组11的6个表面上的磁力，G指示所述摄像头模组11所受重力。在此情况下，如果开启摄像功能，可通过调整供给给所述线圈14上的 电信号(如电流信号)的方向和/或大小，以控制线圈14所产生的第二磁场(磁力)的大小和/或方向。例如，可通过图3所示的6个方向的磁力调节来控制摄像头模组11在所述腔体12内的空间位置，从而使得所述摄像头模组11所受外力为0，实现磁悬浮。
需要说明的是，当磁体(即线圈)被磁化到饱和状态后，若将磁场强度(H)由最大值逐渐减小时，其磁感应强度(符号为B)不是循原来的途径返回，而是沿着比原来的途径稍高的一段曲线而减小，这种现象称磁滞现象，例如，磁感强度变化过程如图4所示。由于磁力与磁感强度之间成正比关系，因此磁力与磁场强度的变化关系同样遵循“磁滞原理”，利用此原理，本实施例中将移动拍摄过程中出现的剧烈抖动过程转化成一个缓慢稳态的变化过程，从而实现拍摄过程中的物理防抖(瞬时防抖)，例如，在电子设备搭配具有凸透镜的摄像头模组11可实现接近±45°防抖，也就是，本实施例给出的摄像装置10或电子设备能够实现较大角度的防抖，应用环境更广。
在前述描述的基础上，所述腔体12可以为但不限于正方体腔体、长方体腔体、球形腔体中的其中一个。例如，请再次参阅图2c，在所述腔体12为正方体腔体的情况下，所述正方体腔体的每个内壁上均可设置有所述线圈14。另外需要说明的是，位于不同内壁上的线圈可以相同，也可以不同，具体可根据实际需求进行设定。
一种实现方式中，请再次参阅图2c，所述腔体12可以包括相对的第一侧壁121和第二侧壁122，所述第一侧壁121上开设有第一镜头孔，所述第二侧壁122上开设有与所述第一镜头孔对应的第二镜头孔；所述第一镜头孔和所述第二镜头孔处分别安装有镜片，所述摄像头模组的镜头朝向所述第一镜头孔，由此，能够确保位于所述第一侧壁121上的线圈14与所述第二侧壁122上的线圈14产生的磁场平衡，进而确保在实现摄像防抖时的可靠性。
所述检测器30用于检测所述电子设备在摄像过程中的抖动信息，其中，所述抖动信息可以包括但不限于经/纬向位移信息、海拔信息、旋转角度中的至少一个。一种实现方式中，在所述电子设备控制所述摄像装置10开启摄像功能时，所述检测器30开始实时检测所述电子设备的抖动信息。
本实施例中，所述检测器30可以为但不限于陀螺仪，可以设置于所述电子设备的PCB板上。
所述控制器20用于实现对所述检测器30、所述电源管理器40、摄像装置10的控制， 以及用于在接收到所述检测器30发送的抖动信息时，对所述抖动信息进行分析，得到目标控制信息，并将所述目标控制信息发送给所述电源管理器40。其中，所述目标控制信息包括电信号的大小和/或方向，所述电信号可以为电流信号等。
一种实现方式中，所述控制器20可通过柔性电路板(Flexible Printed Circuit Board，FPC)实现与所述摄像装置10中的摄像头模组11的连接。
所述电源管理器40用于实现对所述电子设备中的各部件的电源管理，如供电、断电、调整电信号的大小、方向等。本实施例中，所述电源管理器40在接收到所述控制器20发送的目标控制信息的情况下，向所述线圈14供给与所述目标控制信息对应的目标电信号，以调整第二磁场的磁场状态，进而使得所述摄像头模组11在第一磁场和第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转。其中，所述目标电信号可以为电压信号或电流信号。
一种实现方式中，如果所述线圈14为多个，和/或，所述线圈14包括多个子线圈，那么所述电源管理器40在接收到所述目标控制信息的情况下，首先确定需要进行电源管理(如电信号的大小或/和方向的调整)的目标线圈(线圈或子线圈)，再向所述目标线圈提供与所述目标控制信息匹配的电信号，从而确保控制结果的可靠性。
示例性的，基于对前述电子设备的描述，下面以电子设备为手机为例，对所述电子设备的防抖过程进行说明，其中，请在此参阅图2a至图2c，假设摄像装置10中的腔体12为正方体腔体，且每个内壁均设置有线圈14，且在使用手机进行正常拍照时，所述摄像头模组11维持磁悬浮稳定状态。
(1)在控制摄像装置10开启摄像功能后，控制检测器30开始实时检测手机抖动信息，并将检测到的抖动信息(经纬向位移、海拔、旋转角度等)反馈到控制器20。
(2)所述控制器20根据接收到的抖动信息分析得到目标控制信息，也即对所述摄像头模组11进行空间位置矫正所需的各线圈14的电流大小和/或方向等信息，并将所述目标控制信息传递给电源管理器40。
(3)所述电源管理器40向所述线圈供给与所述目标控制信息对应的目标电信号，使得线圈14产生磁场变化，同时，摄像头模组11在磁场中所受磁力大小及方向发生变化，进而使得摄像头模组11在各方向磁力作用下进行相应的位移及旋转，使得调整后的摄像头 模组11的空间绝对位置未发生变化(如图5a所示)，也即手机抖动后摄像头模组11的拍摄方向未发生变化，从而实现瞬时防抖。
此外，变化的目标电信号通过线圈14后，该线圈14中的电流恢复到初始状态(也即抖动前状态)。同时，请结合参阅图5b所示，由于磁滞效应影响，当线圈14上的电流恢复到初始状态时，摄像头模组11所受磁力并非直接降低到初始情况，而是以缓慢的过程逐步减小到初始值，其中，磁力缓慢变化的过程中，摄像头模组也随之缓慢位移、旋转，从而实现拍摄全过程的防抖，并且在磁力最终消失后，摄像头模组11恢复到原本的空间相对位置，保持磁悬浮状态。应注意，图5a、5b中所示的11为摄像头模组、12为腔体、123为镜片，仅为示意摄像头模组11在所述腔体12中的空间位置的变化状态。实际应用中，所述摄像头模组11被所述镜片123遮挡，且位于所述腔体12内。
本实施例给出的前述电子设备，利用磁悬浮技术，使得在利用所述电子设备进行移动拍摄时，所述摄像头模组11的空间绝对位置不变，也即所述摄像装置10的拍摄方向不变，从而实现所述电子设备在三维空间的瞬时防抖。
此外，本实施例给出的电子设备，其结构更加轻薄、体积小，有利于实现整机轻薄化设计，且具有较大的防抖角度，适应范围广。
如图6所示，为本申请一示例性实施例提供的控制方法600的流程示意图，该方法应用于前述各实施例中所述的电子设备，具体可由安装于电子设备1010中的硬件和/或软件执行。所述方法包括如下步骤。
S610，在开启摄像装置中的摄像功能的情况下，控制检测器检测所述电子设备的抖动信息。所述抖动信息包括经/纬向位移信息、海拔信息、旋转角度中的至少一个。
S620，根据所述抖动信息，得到目标控制信息，所述目标控制信息包括电信号的大小和/或方向。
可以理解，可通过控制器对所述抖动信息进行分析，得到目标控制信息，本实施例对此不做限制。
S630，通过所述电源管理器向所述线圈供给与所述目标控制信息对应的目标电信号，以调整所述线圈所产生的第二磁场的磁场状态，进而使得所述摄像头模组在第一磁场以及 所述第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转，所述第一磁场为所述摄像装置中的永磁体产生。
其中，关于前述S610至S630的具体实现过程可参照前述对电子设备的详细描述，本实施例在此不再赘述。
本申请实施例中，可通过检测器检测所述电子设备在移动拍摄过程中的抖动信息，再根据所述抖动信息得到目标控制信息，最后通过所述电源管理器向所述线圈供给与所述目标控制信息对应的目标电信号，以调整所述线圈所产生的第二磁场的磁场状态，进而使得所述摄像头模组在永磁体所产生的第一磁场以及所述第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转，由此，可使得在利用所述电子设备进行移动拍摄时，所述摄像装置的拍摄方向不变，从而实现所述摄像装置在三维空间的瞬时防抖。
需要说明的是，本申请前述各实施例提供的控制方法，执行主体可以为控制装置，或者，该控制装置中的用于执行控制方法的控制模块。后续部分中，本申请实施例中以控制装置执行控制方法为例，说明本申请实施例提供的控制装置。
本申请一示例性实施例还提供一种控制装置，所述装置可应用于前述实施例给出的电子设备，所述装置包括检测模块，在开启摄像装置中的摄像功能的情况下，控制检测器检测所述电子设备的抖动信息；分析模块，用于根据所述抖动信息，得到目标控制信息，所述目标控制信息包括电信号的大小和/或方向；调整模块，用于通过所述电源管理器向所述线圈供给与所述目标控制信息对应的目标电信号，以调整所述线圈所产生的第二磁场的磁场状态，进而使得所述摄像头模组在第一磁场以及所述第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转，所述第一磁场为所述摄像装置中的永磁体产生。
关于本实施例中的控制装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本实施例中，通过检测器检测所述电子设备在移动拍摄过程中的抖动信息，再根据所述抖动信息进行分析，得到目标控制信息，最后通过所述电源管理器向所述线圈供给与所述目标控制信息对应的目标电信号，以调整所述线圈所产生的第二磁场的磁场状态，进而使得所述摄像头模组在永磁体所产生的第一磁场以及所述第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转，由此，可使得在利用所述电子设备进行移动拍 摄时，所述摄像装置的拍摄方向不变，从而实现所述摄像装置在三维空间的瞬时防抖。
需要说明的是，在本申请中，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、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程物品或者装置中还存在另外的相同要素。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种电子设备，包括控制器、电源管理器、检测器以及摄像装置；
    所述摄像装置包括摄像头模组和腔体，所述摄像头模组上设置有永磁体，所述腔体的内壁设置有线圈，所述摄像头模组设置于所述腔体内；
    所述控制器与所述检测器、所述电源管理器、所述摄像装置分别连接，所述电源管理器与所述摄像装置连接。
  2. 如权利要求1所述的电子设备，其中，所述永磁体为多个，所述摄像头模组包括至少两个表面，其中，各所述永磁体分别设置于至少两个所述表面。
  3. 如权利要求2所述的电子设备，其中，位于第一表面的所述永磁体所产生的第一磁场，与位于第二表面上的所述永磁体所产生的第一磁场的方向相反，所述第一表面与所述第二表面相背设置。
  4. 如权利要求2所述的电子设备，其中，所述线圈为多个，所述腔体包括与各所述线圈一一对应的至少两个内壁，各所述线圈分别设置于至少两个所述内壁；
    其中，在向各所述线圈通电的情况下，所述摄像头模组能够在多个所述永磁体产生的第一磁场以及多个所述线圈产生的第二磁场的共同作用下，悬浮于所述腔体内。
  5. 如权利要求4所述的电子设备，其中，每个所述线圈包括至少两个子线圈，至少两个所述子线圈分别与所述电源管理器连接，所述电源管理器用于对至少两个所述子线圈产生的磁力进行单独控制。
  6. 如权利要求1所述的电子设备，其中，所述腔体为正方体腔体、长方体腔体、球形腔体中的其中一个。
  7. 如权利要求1所述的电子设备，其中，所述腔体包括相对的第一侧壁和第二侧壁，所述第一侧壁上开设有第一镜头孔，所述第二侧壁上开设有与所述第一镜头孔对应的第二镜头孔；
    所述第一镜头孔和所述第二镜头孔处分别安装有镜片，所述摄像头模组的镜头朝向所述第一镜头孔。
  8. 如权利要求1所述的电子设备，其中，所述检测器包括陀螺仪。
  9. 一种控制方法，应用于权利要求1-8中任一项所述的电子设备，所述方法包括：
    在开启摄像装置中的摄像功能的情况下，控制检测器检测所述电子设备的抖动信息；
    根据所述抖动信息，得到目标控制信息，所述目标控制信息包括电信号的大小和/或方向；
    通过所述电源管理器向所述线圈供给与所述目标控制信息对应的目标电信号，以调整所述线圈所产生的第二磁场的磁场状态，进而使得所述摄像头模组在第一磁场以及所述第二磁场的作用下进行预定运动，所述预定运动包括位移和/或角度偏转，所述第一磁场为所述摄像装置中的永磁体产生。
  10. 如权利要求9所述的方法，其中，所述抖动信息包括经/纬向位移信息、海拔信息、旋转角度中的至少一个。
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