WO2021007764A1 - 拍摄设备的控制方法、装置、手持云台及存储介质 - Google Patents

拍摄设备的控制方法、装置、手持云台及存储介质 Download PDF

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Publication number
WO2021007764A1
WO2021007764A1 PCT/CN2019/096109 CN2019096109W WO2021007764A1 WO 2021007764 A1 WO2021007764 A1 WO 2021007764A1 CN 2019096109 W CN2019096109 W CN 2019096109W WO 2021007764 A1 WO2021007764 A1 WO 2021007764A1
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WO
WIPO (PCT)
Prior art keywords
control
follow focus
follow
focus
photographing
Prior art date
Application number
PCT/CN2019/096109
Other languages
English (en)
French (fr)
Inventor
王振动
王协平
周超
Original Assignee
深圳市大疆创新科技有限公司
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 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201980012172.1A priority Critical patent/CN111712667A/zh
Priority to PCT/CN2019/096109 priority patent/WO2021007764A1/zh
Publication of WO2021007764A1 publication Critical patent/WO2021007764A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/04Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or holding steady relative to, a person, e.g. by chains, e.g. rifle butt or pistol grip supports, supports attached to the chest or head
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/18Heads with mechanism for moving the apparatus relatively to the stand
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/56Accessories
    • G03B17/561Support related camera accessories
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00Control of position or direction
    • G05D3/12Control of position or direction using feedback

Definitions

  • the embodiments of the present invention relate to the field of camera technology, and in particular, to a control method, device, handheld pan/tilt, and storage medium of photographing equipment.
  • the photographing equipment can be mounted on a handheld pan/tilt, which can enhance the stability of the photographing equipment, and make the pictures captured by the photographing equipment more stable.
  • the handheld pan/tilt is provided with two motors, one motor is used to control the zoom of the shooting device, and the other motor is used to control the focus of the shooting device.
  • the load of the handheld PTZ is heavy, and it is not convenient for the user to control the handheld PTZ.
  • the embodiments of the present invention provide a control method, device, handheld pan/tilt, and storage medium for shooting equipment, so as to reduce the load of the handheld pan/tilt, and facilitate the user to control the handheld pan/tilt.
  • the first aspect of the embodiments of the present invention is to provide a method for controlling a photographing device.
  • the photographing device is mounted on a handheld pan/tilt, and the handheld pan/tilt is equipped with a motor that can interact with the zoom ring of the photographing device.
  • the follow focus control instruction is sent to the shooting device through the control line, and the follow focus control instruction is used to control the shooting device to follow focus.
  • the second aspect of the embodiments of the present invention is to provide a control device for photographing equipment, the photographing equipment is mounted on a handheld pan/tilt, and the handheld pan/tilt is equipped with a motor, and the motor can interact with the zoom ring of the photographing device. Connect and drive the zoom ring to rotate to control the shooting equipment to zoom, the handheld pan/tilt is connected to the shooting equipment through a control line; the control device includes: a memory and a processor;
  • the memory is used to store program codes
  • the processor calls the program code, and when the program code is executed, is used to perform the following operations:
  • the follow focus control instruction is sent to the shooting device through the control line, and the follow focus control instruction is used to control the shooting device to follow focus.
  • the third aspect of the embodiments of the present invention is to provide a handheld PTZ, including:
  • PTZ used to carry shooting equipment
  • a base where the pan-tilt and the base are connected;
  • a motor which can be connected to the zoom ring of the photographing device, and drives the zoom ring to rotate to control the photographing device to zoom;
  • the fourth aspect of the embodiments of the present invention is to provide a computer-readable storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement the method described in the first aspect.
  • the control method, device, hand-held pan/tilt and storage medium provided by this embodiment are connected to the zoom ring of the photographing device through the motor of the hand-held pan/tilt, so that the motor drives the zoom ring to rotate during the rotation to control the The camera is zoomed.
  • the handheld pan/tilt sends a follow focus control command to the camera via the control line to control the camera to follow focus. That is to say, the handheld pan/tilt can control the camera by wire.
  • follow focus without the need for another motor to drive the follow focus ring of the shooting device to rotate to control the shooting device to follow focus, so that the handheld pan/tilt only needs one motor to control the shooting device to zoom and follow. It reduces the load of the handheld PTZ and is convenient for users to control the handheld PTZ.
  • Figure 1 is a schematic diagram of an application scenario in the prior art
  • Figure 2 is a schematic diagram of an application scenario provided by an embodiment of the invention.
  • FIG. 3 is a flowchart of a method for controlling a photographing device according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another application scenario provided by an embodiment of the invention.
  • FIG. 5 is a schematic diagram of another application scenario provided by an embodiment of the invention.
  • FIG. 6 is a schematic diagram of another application scenario provided by an embodiment of the invention.
  • FIG. 7 is a flowchart of a method for controlling a photographing device according to another embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for controlling a photographing device according to another embodiment of the present invention.
  • Figure 9 is a structural diagram of a control device provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a pan-tilt in a handheld pan-tilt provided by an embodiment of the present invention.
  • 101 Motor; 102: Connector; 103: First control line;
  • a component when a component is said to be “fixed to” another component, it can be directly on the other component or a central component may also exist. When a component is considered to be “connected” to another component, it can be directly connected to another component or there may be a centered component at the same time.
  • the handheld pan/tilt may be equipped with photographing equipment.
  • the handheld pan/tilt may include a pan/tilt and a base.
  • the pan/tilt is connected to the base.
  • the pan/tilt is used to carry the photographing equipment.
  • the base may be a handle.
  • the shooting device may specifically be a device or device with a shooting function such as a camera or a video camera.
  • motor 1 is used to control the zoom of the camera
  • motor 2 is used to control the camera to follow focus
  • the motor 1 is connected to the follow-focus wheel 1
  • the motor 2 is connected to the follow-focus wheel 2.
  • the motor 1 is driven to rotate.
  • the motor 1 is connected to the zoom ring of the photographing device.
  • the motor 1 can drive the zoom ring to rotate so that the photographing device performs zooming.
  • the motor 2 is connected to the follow focus ring of the shooting device, and the motor 2 can drive the follow focus ring to rotate so that the shooting device performs follow focus.
  • the handheld gimbal is usually equipped with two motors, and the load of the motors is relatively large, which results in a heavier load on the handheld gimbal and the user holds the handheld.
  • the pan/tilt will have a sense of weight, which is not convenient for the user to control the handheld pan/tilt.
  • an embodiment of the present invention provides a method for controlling a photographing device.
  • the photographing device is mounted on a handheld platform 11, and the handheld platform 11 is equipped with a motor, and the motor can be connected to the zoom ring of the photographing device, for example,
  • the motor may be snap-connected to the zoom ring of the shooting device, the motor drives the zoom ring to rotate when rotating to control the shooting device to zoom, and the handheld pan/tilt is connected to the shooting device through a control line.
  • the control line is, for example, a shutter release.
  • the type of the shutter release is not limited here.
  • the shutter release may be a Universal Serial Bus (USB).
  • the handheld pan/tilt head also includes a control device.
  • the control device may specifically be a follow focus controller, a shutter controller, and other devices capable of controlling the follow focus of the shooting device.
  • the control device is not limited to You can control the camera to follow focus, and you can also control the camera to complete other operations, such as taking photos and videos.
  • zooming refers to changing the focal length of the lens to change the viewing angle of shooting, that is, generally speaking, zooming in or out of the subject.
  • follow focus is to make the image of the subject clear by changing the focus, usually by adjusting the distance between the lens and the film to make the image of the subject on the film clear.
  • the handheld pan/tilt 11 can also communicate with a control terminal 12, and the control terminal may specifically be a remote control, a smart phone, a tablet computer, etc.
  • the control terminal may be installed with an application program (Application, APP) for controlling the handheld PTZ.
  • Application, APP Application, APP
  • This embodiment does not limit the communication mode between the handheld PTZ and the control terminal, for example, it may be a wireless communication mode or a wired communication mode.
  • FIG. 3 is a flowchart of a method for controlling a photographing device according to an embodiment of the present invention. As shown in Figure 3, the method in this embodiment may include:
  • Step S301 Obtain a follow focus control instruction.
  • the execution subject of the method in this embodiment may be the control device as described above.
  • the control device may generate a follow focus control instruction, or the control device may receive a follow focus control instruction sent by the control terminal through the communication interface or wireless communication module of the handheld pan/tilt.
  • the follow focus control command is used to control the shooting device to follow focus.
  • Step S302 Send the follow focus control instruction to the shooting device through the control line, where the follow focus control instruction is used to control the shooting device to perform follow focus.
  • control device After the control device obtains the follow focus control instruction, the control device can send the follow focus control instruction to the photographing equipment through the control line. After receiving the follow focus control instruction, the shooting device controls the lens to perform follow focus.
  • the handheld pan/tilt is connected to the follow focus wheel.
  • the handheld pan/tilt head 11 is also connected to a follow focus wheel, which may be an external accessory of the handheld pan/tilt head.
  • the follow focus wheel can also be integrated in the handheld pan/tilt.
  • the follow focus wheel may be electrically connected to the motor or to the control device.
  • the follow focus wheel when the working state of the follow focus wheel is to control follow focus, the follow focus wheel is electrically connected to the control device in the handheld pan/tilt, and when the working state of the follow focus wheel is to control zoom, The follow focus wheel is electrically connected with the motor.
  • the follow focus wheel is electrically connected with the handheld pan/tilt through a metal contact 41, and the metal contact 41 is electrically connected with the control device in the handheld pan/tilt.
  • the control device can be electrically connected with the motor and the photographing equipment in a wired manner. Specifically, when the working state of the follow-focus wheel is to control zoom, the rotation of the follow-focus wheel will trigger the control device to generate a zoom control instruction. Further, the control device can send the zoom control instruction to the The motor makes the motor rotate. The motor can drive the zoom ring of the shooting device to rotate together during the rotation, thereby controlling the shooting device to zoom.
  • the rotation of the follow focus wheel will trigger the control device to generate a follow focus control command. Further, the control device can send the follow focus control command to the The shooting device, thereby controlling the shooting device to follow focus.
  • the control device in the handheld pan/tilt can be connected to the photographing equipment and the motor through a control line.
  • the photographing device and the motor can respectively correspond to different identification information IDs, and the working state of the follow focus wheel can be switched by the mode switch button on the follow focus wheel, or the mode switch command sent by the control terminal 12 can be switched.
  • the control device may generate a follow focus control instruction based on the mode switching instruction and send it to a photographing device with corresponding identification information, or generate an instruction to control the rotation of a motor and send it to a motor with corresponding identification information.
  • a wireless communication module may be installed on the follow focus wheel and the motor respectively.
  • the follow focus wheel and the motor may be wirelessly connected, as shown in Figure 2
  • the follow focus wheel can generate a zoom control command when it rotates, and send the zoom control command wirelessly to the motor, and the motor is based on the zoom control command Rotate and drive the zoom ring of the shooting device to rotate, thereby controlling the shooting device to zoom.
  • the follow focus wheel and the control device can be connected wirelessly or wired.
  • the wired connection mode of the follow focus wheel and the control device is specifically shown in FIG.
  • the wireless connection mode of the follow focus wheel and the control device is taken as an example for schematic description.
  • the follow-focus wheel can generate a follow-focus control command when rotating, and send the follow-focus control command to the control device in a wireless manner, and the control The device further controls the shooting device to follow focus according to the follow focus control instruction.
  • the follow focus wheel can send its rotation speed to the control device in real time or periodically, and the control device can be based on the The rotation speed of the follow focus wheel generates a follow focus control command, and the shooting device is controlled to perform follow focus according to the follow focus control command.
  • the working state of the follower focus wheel is different.
  • the shooting device can perform zooming.
  • the working state of the follow focus wheel is to control the zoom.
  • the photographing device can perform follow focus.
  • the working state of the follow focus wheel is to control follow focus.
  • the focus wheel can switch from controlling the focus to controlling the zoom, or from controlling the zoom to controlling the focus.
  • the specific switching methods can be as follows:
  • the follow focus wheel is provided with a mode switch button, and the mode switch button is used to control the working state of the follow focus wheel to switch between control of focus and zoom.
  • the follow focus wheel may be provided with a mode switch button.
  • the mode switch button When the mode switch button is turned on, the follow focus wheel is electrically connected to the motor, and the working state of the follow focus wheel is to control zoom.
  • the mode switching button When the mode switching button is turned off, the follow focus wheel is electrically connected to the control device, and the working state of the follow focus wheel is to control follow focus. Or, when the mode switching button is turned off, the follow focus wheel is electrically connected to the motor, and the working state of the follow focus wheel is to control zoom.
  • the mode switch button When the mode switch button is turned on, the follow focus wheel is electrically connected to the control device, and the working state of the follow focus wheel is to control follow focus.
  • the mode switching button includes at least two states, so that one state of the mode switching button can correspond to a working state of the focus wheel.
  • the working state of the focus wheel is to control zoom.
  • the mode switch button on the focus wheel is in the B state
  • the working state of the focus wheel is to control the focus.
  • the control device can be triggered to generate a mode switch instruction.
  • the control device can be triggered to generate a follow focus control instruction to control the shooting device.
  • the mode switch button changes from the B state to the A state
  • the control device can be triggered to generate a mode switch instruction.
  • the control device is triggered to generate a zoom control instruction to control the motor to rotate to drive The zoom ring of the shooting device turns.
  • the working state of the focusing wheel is controlled to switch between focusing control and zoom control.
  • the handheld pan/tilt may also include a communication device, which is used to communicate with the control terminal.
  • a communication device which is used to communicate with the control terminal.
  • the user can send a mode switching instruction to the handheld pan/tilt through the control terminal.
  • the mode switching instruction may include the target working state of the follow focus wheel determined by the user.
  • the handheld pan/tilt receives the mode switching instruction, according to the target working state in the mode switching instruction and the current working state of the focusing wheel, the focusing wheel is controlled to be electrically connected to the motor or the control device.
  • the target working state in the mode switching instruction is to control zoom
  • the current working state of the follow focus wheel is to control follow focus, that is, the follow focus wheel is currently electrically connected to the control device, then the handheld pan/tilt head controls the follow focus The wheel is switched to be electrically connected to the motor.
  • the motor of the handheld PTZ is connected to the zoom ring of the shooting device, so that the motor drives the zoom ring to rotate during the rotation to control the shooting device to zoom.
  • the handheld PTZ is directed to the shooting device through a control line Send a follow focus control command to control the camera to follow focus, that is to say, the handheld pan/tilt can control the camera to follow focus through wire control, without the need for another motor to drive the follow focus ring of the camera Rotate to control the camera to perform follow focus, so that the handheld camera can control the camera to zoom and follow focus when only one motor is needed, which reduces the load of the handheld camera and facilitates the user to control the handheld camera station.
  • the number of the follow focus wheels is at least two, one of the follow focus wheels is used to control the shooting device to zoom, and one of the follow focus wheels is used to control the shooting device Follow focus.
  • the handheld pan/tilt can be connected to two follow focus wheels, for example, follow focus wheel 1 and follow focus wheel 2, wherein the follow focus wheel 1 is electrically connected to the motor, and the follow focus wheel 2 and the control device Electric connection.
  • the follow focus wheel 1 and the follow focus wheel 2 can rotate at the same time or not at the same time.
  • the rotation of the motor can drive the zoom ring to rotate so that the photographing device can zoom.
  • the control device can convert the rotation speed of the follow-focus wheel 2 into a follow-focus control command, and send the follow-focus control command to the shooting device through the control line To make the camera follow focus. It can be understood that when the follow focus wheel 1 and the follow focus wheel 2 rotate at the same time, the shooting device can perform zoom and follow focus at the same time.
  • the control device in the handheld pan/tilt head can be electrically connected to two follow focus wheels through metal contacts.
  • the follow focus wheel 1 is used to control the shooting device to zoom
  • the follow focus wheel 2 is used to control the shooting device to perform follow focus.
  • the control device when the follow focus wheel 1 rotates but the follow focus wheel 2 does not rotate, the control device only generates a zoom control instruction to control the shooting device to zoom.
  • the control device when the follow-focus wheel 1 does not rotate but the follow-focus wheel 2 rotates, the control device only generates a follow-focus control command to control the shooting device to perform follow-focus.
  • the control device can generate a zoom control command and a follow focus control command at the same time, thereby controlling the shooting device to perform zoom and follow focus at the same time.
  • the follow focus wheels connected to the handheld pan/tilt may not be limited to two, for example, it may be more than two.
  • the handheld PTZ is connected with at least two follow focus wheels, so that one follow focus wheel is used to control the shooting device to zoom, and one follow focus wheel is used to control the shooting device to perform follow focus.
  • the rotation of the two follow focus wheels enables the camera to zoom and follow focus at the same time, without the need to switch the follow focus wheel back and forth between the motor and the control device, thus improving the convenience for the user to control the handheld pan/tilt .
  • FIG. 7 is a flowchart of a method for controlling a photographing device according to another embodiment of the present invention.
  • the acquiring a follow focus control instruction may include:
  • Step S501 Obtain the rotation speed of the focus wheel.
  • the user can rotate the follow focus wheel to make the follow focus wheel rotate.
  • the control terminal may send a control instruction for controlling the rotation of the follow focus wheel to the handheld pan/tilt, and the handheld pan/tilt may control the rotation of the follow focus wheel.
  • the follow focus wheel can send its rotation speed to the control device of the handheld pan/tilt head in real time or periodically.
  • the control device receives the rotation speed sent by the focus wheel in real time or periodically.
  • Step S502 Determine the current follow focus parameter of the shooting device according to the rotation speed of the follow focus wheel, where the follow focus parameter is used to indicate the rotation angle of the follow focus wheel and the focus movement of the shooting device The corresponding relationship between the distances, the rotation speed of the focusing wheel is positively correlated with the current focusing parameters of the photographing device.
  • control device can adjust the current follow focus parameters of the shooting device according to the rotation speed of the follow focus wheel.
  • the current follow focus parameters of the photographing device can be changed with the change of the rotation speed of the follow focus wheel.
  • the follow focus parameter of the shooting device is used to indicate the correspondence between the rotation angle of the follow focus wheel and the distance moved by the focus of the shooting device.
  • the greater the rotation angle of the follow focus wheel the greater the distance the focus of the shooting device moves, that is, the greater the rotation angle of the follow focus wheel, the more obvious the follow focus effect of the shooting device.
  • the greater the rotation speed of the focus wheel the greater the current focus parameter of the camera.
  • the faster the focus wheel rotates the greater the distance the focus of the photographing device moves when the focus wheel rotates at the same angle.
  • the slower the focus wheel rotates the smaller the distance the focus of the shooting device moves when the focus wheel rotates at the same angle.
  • the rotating speed of the focusing wheel at t0 is 1 rad/s
  • the rotating speed of the focusing wheel at t1 increases to 3 rad/s.
  • the distance of the focus of the photographing device is greater than when the follow focus wheel rotates by the same angle ⁇ at a speed of 1rad/s.
  • the distance of the focus of the photographing device moves is 1 cm.
  • the focal distance of the photographing device moves 3 cm when the follow focus wheel rotates 1 degree.
  • the follow focus parameter of the shooting device includes a follow focus gear.
  • the follow focus gear is used to indicate the distance that the focus of the photographing device moves when the follow focus wheel rotates by a unit angle.
  • the follow focus gear is used to indicate the distance that the focus of the photographing device moves when the follow focus wheel rotates 1 degree.
  • the relationship between the focus gear and the distance of the focus movement of the shooting device is not necessarily equal, but may also be a relationship of a proportional coefficient.
  • the distance of the focus movement may be the focus gear multiplied by a preset coefficient .
  • the follow focus gear of the photographing device When the rotation speed of the follow focus wheel is greater, the follow focus gear of the photographing device is higher. That is to say, when the follow focus wheel rotates faster, the distance that the focus of the photographing device moves when the follow focus wheel rotates 1 degree.
  • Step S503 Generate the follow focus control instruction according to the current follow focus parameters of the shooting device.
  • control device can convert the rotation speed of the follow focus wheel into the follow focus control command of the shooting device according to the type information of the shooting device and the current follow focus parameters of the shooting device, and pass the follow focus control command through
  • the control line as described above is sent to the shooting device, so that the shooting device can control its own lens to follow focus according to the follow focus control instruction, thereby realizing the wire-controlled follow focus of the shooting device.
  • the generating the follow focus control instruction according to the current follow focus parameters of the photographing device includes: acquiring the rotation angle of the follow focus wheel; according to the current follow focus parameters of the photographing device, the The rotation angle of the follow focus wheel and the type information of the shooting device generate a follow focus control command.
  • the follow focus wheel when the follow focus wheel is rotating, the follow focus wheel can periodically send its rotation speed to the control device of the handheld pan/tilt.
  • the follow focus wheel may send a rotation speed every 10 milliseconds.
  • the control device can determine the rotation angle of the focus wheel according to the rotation speed and the transmission period of the focus wheel. Assuming that the rotation angle of the follow focus wheel is 2 degrees and the current rotation speed of the follow focus wheel is 3 rad/s, the focus of the shooting device can be determined according to the current follow focus gear of the shooting device and the rotation angle of the follow focus wheel The distance to be moved is 6 cm.
  • the follow focus wheel may also be provided with an angle sensor, and the angle sensor is used to detect the rotation angle of the follow focus wheel. Accordingly, the control device obtains the follow focus wheel through the angle sensor. The angle of rotation.
  • the follow focus step value can be understood as the distance that the focus of the shooting device can move every time the control device sends a follow focus control command to the shooting device. For example, for the first type of shooting device, each time the control device sends a follow focus control instruction to the shooting device, the distance that the focus of the shooting device can move is 1 cm. For the second type of shooting equipment, each time the control device sends a follow focus control instruction to the shooting device, the distance that the focus of the shooting device can move is 2 cm.
  • the control device needs to send 6 follow focus control commands to the photographing equipment.
  • the control device sends 6 follow focus control instructions to the shooting device, and the shooting device controls the lens of the shooting device to follow focus according to the 6 follow focus control instructions, so that the focus of the shooting device moves 6 cm.
  • the rotation speed of the follow focus wheel is obtained, and the current follow focus parameters of the shooting device are determined according to the rotation speed of the follow focus wheel, so that the rotation speed of the follow focus wheel is the same as the current speed of the shooting device.
  • the follow focus parameter is positively correlated, that is, the faster the follow focus wheel rotates, the greater the distance the focus of the shooting device moves when the follow focus wheel rotates at the same angle, so when the focus of the shooting device changes When it is larger, if it is detected that the user is turning the focus wheel faster, increase the distance that the focus of the shooting device moves when the focus wheel rotates at the same angle, thereby achieving the purpose of following the focus wheel and the hand .
  • the embodiment of the present invention provides a method for controlling a photographing device.
  • the handheld pan/tilt head further includes a communication device, the communication device is used to receive information sent by the control terminal, and the communication device includes a communication interface or a wireless communication module.
  • the communication interface may be a wired communication interface, and the type of the wired communication interface is not limited here, for example, it may be a serial communication interface.
  • the wireless communication module may specifically be a wireless fidelity (Wireless Fidelity, WiFi) communication module, a Bluetooth module, and the like.
  • the handheld pan/tilt may perform wired communication with the control terminal through the communication interface, or the handheld pan/tilt may perform wireless communication with the control terminal through the wireless communication module. Specifically, the handheld pan/tilt may receive the information sent by the control terminal through the communication interface or the wireless communication module.
  • the acquiring the follow focus control instruction includes: receiving the follow focus control instruction sent by the control terminal through the communication device.
  • an APP is installed on the control terminal, and the APP provides a user interface.
  • the user can perform operations on the user interface.
  • the user can click on the user interface a button or button.
  • the control terminal generates a follow focus control instruction according to the user's operation, and sends the follow focus control instruction to the handheld pan/tilt.
  • the handheld pan/tilt can receive the follow focus control command sent by the control terminal through the communication interface or the wireless communication module.
  • the method further includes: receiving, through the communication device, a photographing instruction or a recording instruction sent by the control terminal; and sending the photographing instruction or the recording instruction to the photographing device through the control line,
  • the photographing instruction is used to control the photographing device to take pictures
  • the video recording instruction is used to control the photographing device to record videos.
  • the user interface may also display keys or buttons for controlling the shooting device to take photos or videos.
  • the control terminal When the user operates the keys or buttons, the control terminal generates a photo instruction or a video instruction, and sends the photo instruction or The video instruction is sent to the handheld PTZ.
  • the handheld pan/tilt head receives a photographing instruction or a video recording instruction sent by the control terminal through the communication interface or the wireless communication module.
  • the control device in the handheld PTZ can send the photographing instruction or the video recording instruction to the photographing device through the control line, so that the photographing device can take a photograph according to the photographing instruction, or the photographing device can take a photograph according to the recording Command to record.
  • the method further includes: receiving setting information sent by the control terminal through the communication device; sending the setting information to the photographing device through the control line, and the setting information is used to set the
  • the state parameters of the shooting device include at least one of the following: an exposure parameter of the shooting device, and a follow focus parameter of the shooting device.
  • the control terminal can also set the state parameters of the shooting device.
  • the control terminal can set the exposure parameters, follow focus parameters, zoom parameters and other parameters of the shooting device.
  • the control terminal sends setting information to the handheld PTZ. After the handheld PTZ receives the setting information sent by the control terminal through the communication interface or the wireless communication module, it sends the setting information to the shooting device through the control line , Enabling the shooting device to set or update its own exposure parameters, follow focus parameters, zoom parameters and other parameters according to the setting information.
  • control device may also obtain the power information of the photographing device in real time or periodically, and determine whether the power of the photographing device is lower than a preset power threshold according to the power information. If the power of the photographing equipment is lower than the preset power threshold, the control device may also perform power warning.
  • the user can also set the follow focus gear of the photographing device on the user interface of the control terminal.
  • the control terminal can push the follow focus gear set by the user to the handheld PTZ.
  • the handheld pan/tilt may also send the changed follow-focus gear to the control terminal.
  • the handheld pan/tilt in this embodiment receives the information sent by the control terminal through a communication device, so that the handheld pan/tilt can receive follow focus control instructions, photographing instructions, video instructions or setting information sent by the control terminal through the communication device , So that the control device in the handheld PTZ can control the camera on the handheld PTZ to follow focus, take pictures, video, or set state parameters, etc., so that the camera can set or update the camera during the shooting process.
  • the state parameters of the shooting device for example, exposure parameters, follow focus parameters, zoom parameters, etc., thereby improving the diversity and flexibility of the control terminal to control the shooting device.
  • FIG. 8 is a flowchart of a method for controlling a photographing device according to another embodiment of the present invention. As shown in FIG. 8, on the basis of the foregoing embodiment, the method further includes:
  • Step S601 Detect the identification information of the control line.
  • control device may be connected to the photographing device through a control line, and the control line may specifically be a shutter release, and the type of the control line is not limited here.
  • the type of the control line includes at least one of the following: a universal serial bus (Universal Serial Bus, USB), an infrared shutter cable, and an audio cable.
  • Universal Serial Bus Universal Serial Bus
  • Different types of control lines can correspond to different identification information, for example, hardware identification (Identity, ID).
  • the control device when the control device is connected to the control line, the control device can detect the identification information of the control line.
  • Step S602 Determine the type information of the control line according to the identification information of the control line.
  • control device can determine the type information of the control line according to the identification information of the control line. For example, according to the identification information of the control line, it is determined which of the USB, infrared shutter line, and audio line the control line is.
  • the USB may specifically be a multi-function camera control line (Multi-USB), and the Multi-USB is used to connect the control device of the handheld pan-tilt and the Multi interface of the shooting device.
  • Multi-USB multi-function camera control line
  • control device and the photographing device communicate through the control line
  • the control device and the photographing device follow the Media Transfer Protocol (MTP).
  • MTP Media Transfer Protocol
  • the method further includes: acquiring type information of the photographing device through the control line; and converting the follow focus control instruction into a type recognizable by the photographing device according to the type information of the photographing device
  • the type information of the shooting device includes at least one of the following: manufacturer information of the shooting device, and the model of the shooting device.
  • the control device may obtain the type information of the photographing device through the control line, for example, a USB.
  • the control device may obtain the type information of the photographing device through the USB according to the MTP protocol.
  • the type information of the photographing device includes at least one of the following: Manufacturer information of the photographing device, and model of the photographing device. Therefore, the control device can convert the follow focus control command into a type that can be recognized by the shooting device according to the model of the shooting device.
  • the method further includes: acquiring state information of the photographing device through the control line, and the state information of the photographing device includes at least one of the following: shutter parameters of the photographing device, The focal length of the lens and the follow focus parameters of the shooting device.
  • control device can also read the state information of the photographing device through the control line according to the MTP protocol.
  • the state information of the photographing device includes at least one of the following: shutter parameters of the photographing device, The focal length of the lens and the follow focus parameters of the shooting device. Further, the control device may also send the state information of the photographing equipment to the control terminal.
  • the control device can also detect in real time whether the photographing equipment is connected to the control line.
  • the control device can obtain the model of the shooting device through the control line again, and according to the model of the shooting device, convert the follow focus control command into the shooting device identifiable type.
  • the control device detects the identification information of the control line, and determines the type information of the control line according to the identification information of the control line, so that the handheld pan/tilt can support different types of control lines.
  • the control device can also obtain the type information of the shooting device through the control line, and according to the type information of the shooting device, convert the follow focus control instruction into a type that can be recognized by the shooting device, which improves the handheld cloud
  • the camera is compatible with different types of shooting equipment, and at the same time, it can also control the shooting device to follow focus and/or zoom during the shooting of the shooting device, which improves the shooting effect.
  • the motor is used to control the camera to zoom, and the control device to control the camera to follow focus.
  • the camera can also be controlled by the motor to perform follow focus
  • the control device can be used to control the camera to zoom.
  • the motor is connected to the follow focus ring of the shooting device, and when the motor rotates, the motor drives the follow focus ring to rotate, thereby controlling the shooting device to perform follow focus.
  • the handheld pan/tilt can be connected with one follow focus wheel, or two follow focus wheels or more.
  • the follow focus wheel When the handheld PTZ is connected with a follow focus wheel, the follow focus wheel can be electrically connected to the control device in the handheld PTZ through metal contacts, and the control device can be electrically connected to the motor and the shooting device through a wired manner. connection.
  • the control device When the follow focus wheel rotates, the control device can generate a control command corresponding to the working state according to the working state of the follow focus wheel, and further control the zoom or follow focus of the shooting device according to the control command.
  • the follow focus wheel and the motor can be respectively equipped with a wireless communication module.
  • the follow focus wheel and the motor can be wirelessly connected;
  • the working state is to control the zoom
  • the follow focus wheel and the control device can be connected wirelessly or wired.
  • the embodiment of the present invention provides a control device for photographing equipment.
  • the photographing device is mounted on a handheld pan/tilt, and the handheld pan/tilt is equipped with a motor, which can be connected to the zoom ring of the photographing device and drives the zoom ring to rotate to control the photographing device to zoom,
  • the handheld pan/tilt is connected to the photographing device through a control line.
  • FIG. 9 is a structural diagram of a control device provided by an embodiment of the present invention. As shown in FIG.
  • the control device 70 includes a memory 71 and a processor 72; the memory 71 is used to store program codes; the processor 72 calls the program codes, When the program code is executed, it is used to perform the following operations: acquire a follow focus control instruction; send the follow focus control instruction to the shooting device through the control line, and the follow focus control instruction is used to control the shooting The device performs follow focus.
  • the handheld pan/tilt is connected to a follow focus wheel, the follow focus wheel is provided with a mode switch button, and the mode switch button is used to control the working state of the follow focus wheel. Switch between.
  • the processor 72 is further configured to: according to a mode switching instruction sent by the control terminal, control the working state of the follow focus wheel to switch between control of follow focus and control of zoom.
  • the follow focus wheel when the working state of the follow focus wheel is to control follow focus, the follow focus wheel is electrically connected to the control device in the handheld pan/tilt, and when the working state of the follow focus wheel is to control zoom, The follow focus wheel is electrically connected with the motor.
  • the processor 72 when the processor 72 obtains the follow focus control instruction, it is specifically used to: obtain the rotation speed of the follow focus wheel; determine the current follow focus parameters of the shooting device according to the rotation speed of the follow focus wheel, where ,
  • the follow focus parameter is used to indicate the correspondence between the rotation angle of the follow focus wheel and the distance moved by the focus of the shooting device, and the rotation speed of the follow focus wheel is related to the current follow focus of the shooting device
  • the parameters are positively correlated; the follow focus control command is generated according to the current follow focus parameters of the shooting device.
  • the processor 72 when the processor 72 generates the follow focus control command according to the current follow focus parameters of the shooting device, it is specifically used to: obtain the rotation angle of the follow focus wheel; according to the current follow focus of the shooting device The parameters, the rotation angle of the follow focus wheel and the type information of the shooting device generate a follow focus control command.
  • the number of the follow focus wheels is at least two.
  • One of the follow focus wheels is used to control the shooting device to perform zooming, and one of the follow focus wheels is used to control the shooting device to perform follow focus.
  • the handheld pan/tilt head further includes a communication device configured to receive information sent by the control terminal, and the communication device includes a communication interface or a wireless communication module.
  • the processor 72 when the processor 72 obtains the follow focus control instruction, it is specifically configured to: receive the follow focus control instruction sent by the control terminal through the communication device.
  • the processor 72 is further configured to: receive a photographing instruction or a recording instruction sent by the control terminal through the communication device; and send the photographing instruction or the recording instruction to the photographing device through the control line ,
  • the photographing instruction is used to control the photographing device to photograph
  • the video recording instruction is used to control the photographing device to record video.
  • the processor 72 is further configured to: receive setting information sent by the control terminal through the communication device; send the setting information to the photographing device through the control line, and the setting information is used for setting
  • the state parameter of the photographing device includes at least one of the following: an exposure parameter of the photographing device, and a follow focus parameter of the photographing device.
  • the processor 72 is further configured to: detect the identification information of the control line; and determine the type information of the control line according to the identification information of the control line.
  • control cable includes at least one of the following: universal serial bus USB, infrared shutter cable, and audio cable.
  • the processor 72 is further configured to: obtain the type information of the photographing device through the control line; according to the type information of the photographing device, convert the follow focus control instruction into recognizable by the photographing device Type; wherein the type information of the shooting device includes at least one of the following: manufacturer information of the shooting device, and the model of the shooting device.
  • the processor 72 is further configured to: obtain state information of the photographing device through the control line, and the state information of the photographing device includes at least one of the following: shutter parameters of the photographing device, The focal length of the lens and the follow focus parameters of the shooting device.
  • the motor of the handheld PTZ is connected to the zoom ring of the shooting device, so that the motor drives the zoom ring to rotate during the rotation to control the shooting device to zoom.
  • the handheld PTZ is directed to the shooting device through a control line Send a follow focus control command to control the camera to follow focus, that is to say, the handheld pan/tilt can control the camera to follow focus through wire control, without the need for another motor to drive the follow focus ring of the camera Rotate to control the camera to perform follow focus, so that the handheld camera can control the camera to zoom and follow focus when only one motor is needed, which reduces the load of the handheld camera and facilitates the user to control the handheld camera station.
  • the embodiment of the present invention provides a handheld PTZ.
  • the handheld PTZ includes: PTZ, base, motor and the control device as described in the above embodiment.
  • the pan-tilt is used to carry the photographing equipment; the pan-tilt and the base are connected, and the motor can be connected with the zoom ring of the photographing equipment and drive the zoom ring to rotate to control the photographing equipment to zoom.
  • the handheld PTZ can also be connected with a follow focus wheel.
  • control device can be used to implement the technical solutions of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • Figure 10 shows a schematic diagram of a pan-tilt holding a pan-tilt.
  • the base of the handheld pan/tilt is not shown, and the base may be a handheld rod, a handle, and other components.
  • the base may specifically be under the pan/tilt as shown in FIG. 10.
  • the camera platform carries a photographing device, and the zoom ring of the photographing device is connected to the motor 101.
  • the control device described above is located in the connecting member 102, and the control device can be electrically connected to the motor through the first control line 103 and electrically connected to the photographing equipment through the second control line 104.
  • the follow focus wheel as described above can be set on the base or at other positions of the handheld pan/tilt.
  • the follow focus wheel is electrically connected with the base through a metal contact, and the metal contact is electrically connected with the control device.
  • control device does not limit the installation position of the control device in the handheld pan/tilt.
  • control device may also be installed in the base.
  • this embodiment also provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to implement the control method of the photographing device described in the foregoing embodiment.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor execute the method described in the various embodiments of the present invention. Part of the steps.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本发明实施例提供一种拍摄设备的控制方法、装置、手持云台及存储介质。本发明实施例通过手持云台的电机与拍摄设备的变焦环连接,使得该电机在转动的过程中带动该变焦环转动以控制该拍摄设备进行变焦,另外,该手持云台通过控制线向拍摄设备发送跟焦控制指令的方式控制该拍摄设备进行跟焦,也就是说,该手持云台可通过线控方式控制该拍摄设备进行跟焦,而不需要另一个电机带动该拍摄设备的跟焦环转动以控制该拍摄设备进行跟焦,从而使得该手持云台只需要一个电机的情况下就可以控制该拍摄设备进行变焦和跟焦,降低了该手持云台的载重,便于用户控制该手持云台。

Description

拍摄设备的控制方法、装置、手持云台及存储介质 技术领域
本发明实施例涉及相机技术领域,尤其涉及一种拍摄设备的控制方法、装置、手持云台及存储介质。
背景技术
现有技术中拍摄设备可搭载在手持云台上,手持云台能够增强拍摄设备的稳定性,使得拍摄设备拍摄出的画面更加稳定。
在一些场景中,用户需要对该拍摄设备进行跟焦控制和变焦控制。现有技术中,手持云台设置有两个电机,一个电机用于控制该拍摄设备变焦,另一个电机用于控制该拍摄设备跟焦。从而导致手持云台的负载较重,不便于用户控制手持云台。
发明内容
本发明实施例提供一种拍摄设备的控制方法、装置、手持云台及存储介质,以降低该手持云台的载重,便于用户控制该手持云台。
本发明实施例的第一方面是提供一种拍摄设备的控制方法,所述拍摄设备搭载在手持云台上,所述手持云台安装有电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦,所述手持云台通过控制线与所述拍摄设备连接,所述方法包括:
获取跟焦控制指令;
通过所述控制线将所述跟焦控制指令发送给所述拍摄设备,所述跟焦控制指令用于控制所述拍摄设备进行跟焦。
本发明实施例的第二方面是提供一种拍摄设备的控制装置,所述拍摄设备搭载在手持云台上,所述手持云台安装有电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦,所述手持云台通过控制线与所述拍摄设备连接;所述控制装置包括:存储器和处理器;
所述存储器用于存储程序代码;
所述处理器,调用所述程序代码,当程序代码被执行时,用于执行以下操作:
获取跟焦控制指令;
通过所述控制线将所述跟焦控制指令发送给所述拍摄设备,所述跟焦控制指令用于控制所述拍摄设备进行跟焦。
本发明实施例的第三方面是提供一种手持云台,包括:
云台,用于承载拍摄设备;
基座,所述云台和所述基座连接;
电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦;以及
第二方面所述的控制装置。
本发明实施例的第四方面是提供一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行以实现第一方面所述的方法。
本实施例提供的拍摄设备的控制方法、装置、手持云台及存储介质,通过手持云台的电机与拍摄设备的变焦环连接,使得该电机在转动的过程中带动该变焦环转动以控制该拍摄设备进行变焦,另外,该手持云台通过控制线向拍摄设备发送跟焦控制指令的方式控制该拍摄设备进行跟焦,也就是说,该手持云台可通过线控方式控制该拍摄设备进行跟焦,而不需要另一个电机带动该拍摄设备的跟焦环转动以控制该拍摄设备进行跟焦,从而使得该手持云台只需要一个电机的情况下就可以控制该拍摄设备进行变焦和跟焦,降低了该手持云台的载重,便于用户控制该手持云台。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为现有技术中的一种应用场景的示意图;
图2为发明实施例提供一种应用场景的示意图;
图3为本发明实施例提供的拍摄设备的控制方法的流程图;
图4为发明实施例提供另一种应用场景的示意图;
图5为发明实施例提供另一种应用场景的示意图;
图6为发明实施例提供另一种应用场景的示意图;
图7为本发明另一实施例提供的拍摄设备的控制方法的流程图;
图8为本发明另一实施例提供的拍摄设备的控制方法的流程图;
图9为本发明实施例提供的控制装置的结构图;
图10为本发明实施例提供的一种手持云台中的云台的示意图。
附图标记:
11:手持云台;    12:控制终端;     70:控制装置;
71:存储器;      72:处理器;       41:金属触点;
101:电机;       102:连接件;      103:第一控制线;
104:第二控制线。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
需要说明的是,当组件被称为“固定于”另一个组件,它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件,它可以是直接连接到另一个组件或者可能同时存在居中组件。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
下面结合附图,对本发明的一些实施方式作详细说明。在不冲突的情况下,下述的实施例及实施例中的特征可以相互组合。
手持云台可搭载有拍摄设备,该手持云台可包括云台和基座,该云台 和基座连接,该云台用于承载拍摄设备,该基座具体可以是手柄。该拍摄设备具体可以是相机、摄影机等具有拍摄功能的设备或装置。
通常情况下,手持云台安装有两个电机,如图1所示,电机1用于控制拍摄设备变焦,电机2用于控制该拍摄设备跟焦。另外,电机1与跟焦轮1连接,电机2与跟焦轮2连接。在跟焦轮1转动的过程中带动电机1转动,电机1与该拍摄设备的变焦环连接,该电机1可带动该变焦环转动从而使得该拍摄设备进行变焦。同理,该电机2与该拍摄设备的跟焦环连接,该电机2可带动该跟焦环转动从而使得该拍摄设备进行跟焦。也就是说,为了能够控制该拍摄设备进行变焦和跟焦,该手持云台通常设置有两个电机,而电机的载重较大,从而导致该手持云台的负载较重,而用户手持该手持云台时就会有负重感,不便于用户控制手持云台。
为了解决上述问题,本发明实施例提供了一种拍摄设备的控制方法。如图2所示,在本实施例中,所述拍摄设备搭载在手持云台上11,所述手持云台11安装有电机,所述电机能够与所述拍摄设备的变焦环连接,例如,该电机可以与该拍摄设备的变焦环卡合连接,该电机在转动时带动所述变焦环转动以控制所述拍摄设备进行变焦,所述手持云台通过控制线与所述拍摄设备连接。该控制线例如为快门线。此处不限定快门线的种类,例如,该快门线可以是通用串行总线(Universal Serial Bus,USB)。
另外,该手持云台还包括控制装置,该控制装置具体可以是跟焦控制器、快门控制器等能够控制该拍摄设备跟焦的装置,此外,在其他一些实施例中,该控制装置不限于控制该拍摄设备跟焦,还可以控制该拍摄设备完成其他操作,例如拍照、录像等。
可以理解的是,变焦是指改变镜头的焦距以改变拍摄的视角,也就是通常说的把被摄物体拉近或推远。跟焦是通过改变焦点使被摄物体成像清晰,通常是通过调整镜头与底片之间的距离使底片上的被摄主体成像清晰。
此外,如图2所示,该手持云台11还可以与控制终端12进行通信,该控制终端具体可以是遥控器、智能手机、平板电脑等。该控制终端可安装有控制该手持云台的应用程序(Application,APP)。本实施例并不限定该手持云台和该控制终端之间的通信方式,例如,可以是无线通信方式,或者是有线通信方式。
图3为本发明实施例提供的拍摄设备的控制方法的流程图。如图3所示,本实施例中的方法,可以包括:
步骤S301、获取跟焦控制指令。
本实施例方法的执行主体可以是如上所述的控制装置。具体的,该控制装置可以生成跟焦控制指令,或者,该控制装置可以通过该手持云台的通讯接口或无线通讯模块接收该控制终端发送的跟焦控制指令。该跟焦控制指令用于控制该拍摄设备进行跟焦。
步骤S302、通过所述控制线将所述跟焦控制指令发送给所述拍摄设备,所述跟焦控制指令用于控制所述拍摄设备进行跟焦。
当该控制装置获取到该跟焦控制指令后,该控制装置可通过控制线将该跟焦控制指令发送给该拍摄设备。该拍摄设备接收到该跟焦控制指令后,控制镜头进行跟焦。
可选的,所述手持云台与跟焦轮连接。如图2所示,该手持云台11还与跟焦轮连接,该跟焦轮可以是该手持云台的外接配件。在其他实施例中,该跟焦轮还可以集成在该手持云台中。
在本实施例中,该跟焦轮可以与电机电连接,或者与该控制装置电连接。可选的,当所述跟焦轮的工作状态为控制跟焦时,所述跟焦轮与所述手持云台中的控制装置电连接,当所述跟焦轮的工作状态为控制变焦时,所述跟焦轮与所述电机电连接。
在一种可能的实现方式中,如图4所示,该跟焦轮与手持云台通过金属触点41电连接,该金属触点41与该手持云台中的控制装置电连接。该控制装置可通过有线的方式分别与该电机和该拍摄设备电连接。具体的,当该跟焦轮的工作状态为控制变焦时,该跟焦轮的转动会触发该控制装置产生变焦控制指令,进一步,该控制装置可通过有线的方式将该变焦控制指令发送给该电机,使得该电机转动。该电机在转动过程中可以带动该拍摄设备的变焦环一起转动,从而控制该拍摄设备进行变焦。当该跟焦轮的工作状态为控制跟焦时,该跟焦轮的转动会触发该控制装置产生跟焦控制指令,进一步,该控制装置可通过有线的方式将该跟焦控制指令发送给该拍摄设备,从而控制该拍摄设备进行跟焦。
具体的,该手持云台中的控制装置可以通过控制线分别与该拍摄设备 和该电机连接。该拍摄设备和该电机可分别对应有不同的标识信息ID,通过跟焦轮上的模式切换按键可以切换该跟焦轮的工作状态,或者,可通过获取控制终端12发送的模式切换指令切换该跟焦轮的工作状态。进一步,该控制装置可以基于该模式切换指令生成跟焦控制指令并发送给具有对应标识信息的拍摄设备,或者生成控制电机转动的指令,并发送给具有对应标识信息的电机。
在另一种可能的实现方式中,该跟焦轮和该电机上可以分别安装有无线通信模块,当该跟焦轮连接电机时,该跟焦轮和该电机可以进行无线连接,例如图2所示,该跟焦轮的工作状态为控制变焦时,该跟焦轮在转动时可生成变焦控制指令,并将该变焦控制指令通过无线的方式发送给该电机,该电机根据该变焦控制指令进行转动,并带动拍摄设备的变焦环转动,从而控制该拍摄设备进行变焦。当该跟焦轮与该控制装置连接时,该跟焦轮和该控制装置可以进行无线连接,也可以进行有线连接。该跟焦轮与该控制装置有线连接的方式具体如图4所示,此处以该跟焦轮与该控制装置无线连接的方式为例进行示意性说明。具体的,当该跟焦轮的工作状态为控制跟焦时,该跟焦轮在转动时可生成跟焦控制指令,并将该跟焦控制指令通过无线的方式发送给该控制装置,该控制装置进一步根据该跟焦控制指令控制该拍摄设备进行跟焦。或者,当该跟焦轮的工作状态为控制跟焦时,该跟焦轮在转动时该跟焦轮可将其转动速度实时的或周期性的发送给该控制装置,该控制装置可根据该跟焦轮的转动速度生成跟焦控制指令,并根据该跟焦控制指令控制该拍摄设备进行跟焦。
可见,当该跟焦轮与电机或控制装置电连接时,该跟焦轮的工作状态是不同的。例如,当该跟焦轮与电机电连接时,该拍摄设备可进行变焦,在这种状态下,该跟焦轮的工作状态为控制变焦。当该跟焦轮与控制装置电连接时,该拍摄设备可以进行跟焦,在这种状态下,该跟焦轮的工作状态为控制跟焦。
也就是说,该跟焦轮可以从控制跟焦切换到控制变焦,或者是从控制变焦切换到控制跟焦。具体的切换方式可以有如下几种:
在一种可能的方式中,所述跟焦轮设置有模式切换按键,所述模式切换按键用于控制所述跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
例如以图2为例,该跟焦轮上可设置有一个模式切换按键,当该模式切换按键开启时,该跟焦轮与该电机电连接,该跟焦轮的工作状态为控制变焦。当该模式切换按键关闭时,该跟焦轮与该控制装置电连接,该跟焦轮的工作状态为控制跟焦。或者,当该模式切换按键关闭时,该跟焦轮与该电机电连接,该跟焦轮的工作状态为控制变焦。当该模式切换按键开启时,该跟焦轮与该控制装置电连接,该跟焦轮的工作状态为控制跟焦。也就是说,该模式切换按键至少包括两个状态,使得该模式切换按键的一种状态可以对应该跟焦轮的一种工作状态。
以图4为例,假设该跟焦轮上的模式切换按键处于A状态时,该跟焦轮的工作状态为控制变焦。当该跟焦轮上的模式切换按键处于B状态时,该跟焦轮的工作状态为控制跟焦。具体的,当该模式切换按键从A状态变化为B状态时,可触发该控制装置生成模式切换指令,后续该跟焦轮在转动时触发该控制装置生成跟焦控制指令,控制该拍摄设备进行跟焦。同理,当该模式切换按键从B状态变化为A状态时,可触发该控制装置生成模式切换指令,后续该跟焦轮在转动时触发该控制装置生成变焦控制指令,控制该电机转动以带动拍摄设备的变焦环转动。
在另一种可能的方式中,根据控制终端发送的模式切换指令,控制所述跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
例如,该手持云台还可以包括通讯装置,该通讯装置用于与该控制终端进行通信。当用户需要将该跟焦轮的工作状态由控制变焦转换为控制跟焦,或者是由控制跟焦转换为控制变焦时,该用户可通过该控制终端向该手持云台发送模式切换指令,该模式切换指令可包括用户确定的该跟焦轮的目标工作状态。当该手持云台接收到该模式切换指令后,根据该模式切换指令中的目标工作状态以及该跟焦轮的当前工作状态,控制该跟焦轮与该电机或该控制装置电连接。例如,该模式切换指令中的目标工作状态为控制变焦,该跟焦轮的当前工作状态为控制跟焦,即该跟焦轮当前与该控制装置电连接,则该手持云台控制该跟焦轮切换到与该电机电连接。
本实施例通过手持云台的电机与拍摄设备的变焦环连接,使得该电机在转动的过程中带动该变焦环转动以控制该拍摄设备进行变焦,另外,该手持云台通过控制线向拍摄设备发送跟焦控制指令的方式控制该拍摄设 备进行跟焦,也就是说,该手持云台可通过线控方式控制该拍摄设备进行跟焦,而不需要另一个电机带动该拍摄设备的跟焦环转动以控制该拍摄设备进行跟焦,从而使得该手持云台只需要一个电机的情况下就可以控制该拍摄设备进行变焦和跟焦,降低了该手持云台的载重,便于用户控制该手持云台。
在上述实施例的基础上,所述跟焦轮的数量为至少两个,其中一个所述跟焦轮用于控制所述拍摄设备进行变焦,一个所述跟焦轮用于控制所述拍摄设备进行跟焦。
如图5所示,该手持云台可连接有两个跟焦轮,例如,跟焦轮1和跟焦轮2,其中,该跟焦轮1和电机电连接,跟焦轮2和控制装置电连接。相应的,跟焦轮1和跟焦轮2可以同时转动,也可以不同时转动。当跟焦轮1转动而跟焦轮2不转动时,该电机的转动可以带动变焦环转动从而使得该拍摄设备进行变焦。当跟焦轮1不转动而跟焦轮2转动时,该控制装置可以将该跟焦轮2的转动速度转换为跟焦控制指令,并通过控制线将该跟焦控制指令发送给该拍摄设备,使得该拍摄设备进行跟焦。可以理解,当跟焦轮1和跟焦轮2同时转动时,该拍摄设备可以同时进行变焦和跟焦。
或者,如图6所示,该手持云台中的控制装置可通过金属触点与两个跟焦轮电连接。例如,跟焦轮1用于控制该拍摄设备进行变焦,跟焦轮2用于控制该拍摄设备进行跟焦。相应的,当跟焦轮1转动而跟焦轮2不转动时,该控制装置只生成变焦控制指令,从而控制该拍摄设备进行变焦。当跟焦轮1不转动而跟焦轮2转动时,该控制装置只生成跟焦控制指令,从而控制该拍摄设备进行跟焦。当跟焦轮1和跟焦轮2同时转动时,该控制装置可同时生成变焦控制指令和跟焦控制指令,从而控制该拍摄设备同时进行变焦和跟焦。
此外,在其他实施例中,该手持云台连接的跟焦轮还可以不限于两个,例如,可以比两个多。
本实施例通过该手持云台与至少两个跟焦轮连接,使得其中一个跟焦轮用于控制所述拍摄设备进行变焦,一个跟焦轮用于控制所述拍摄设备进行跟焦,通过这两个跟焦轮的转动可使得该拍摄设备同时进行变焦和跟焦, 而不需要将该跟焦轮在电机和该控制装置之间来回切换,从而提高了用户控制该手持云台的便捷性。
本发明实施例提供一种拍摄设备的控制方法。图7为本发明另一实施例提供的拍摄设备的控制方法的流程图。如图7所示,在上述实施例的基础上,所述获取跟焦控制指令,可以包括:
步骤S501、获取所述跟焦轮的转动速度。
在本实施例中,用户可以转动该跟焦轮使得该跟焦轮进行转动。或者,该控制终端可以向该手持云台发送控制该跟焦轮转动的控制指令,由该手持云台控制该跟焦轮转动。在该跟焦轮转动的过程中,该跟焦轮可以将其转动速度实时的或周期性的发送给该手持云台的控制装置。相应的,该控制装置实时的或周期性的接收该跟焦轮发送的转动速度。
步骤S502、根据所述跟焦轮的转动速度,确定所述拍摄设备当前的跟焦参数,其中,所述跟焦参数用于表示所述跟焦轮的转动角度与所述拍摄设备的焦点移动的距离之间的对应关系,所述跟焦轮的转动速度与所述拍摄设备当前的跟焦参数成正相关。
在本实施例中,控制装置可根据该跟焦轮的转动速度,调整该拍摄设备当前的跟焦参数。也就是说,该拍摄设备当前的跟焦参数是可以随着该跟焦轮的转动速度的变化而变化的。
具体的,该拍摄设备的跟焦参数用于表示该跟焦轮的转动角度与该拍摄设备的焦点移动的距离之间的对应关系。通常情况下,该跟焦轮的转动角度越大,该拍摄设备的焦点移动的距离越大,即该跟焦轮的转动角度越大,该拍摄设备的跟焦效果越明显。
在本实施例中,该跟焦轮的转动速度越大,该拍摄设备当前的跟焦参数越大。也就是说,该跟焦轮转动的越快,该跟焦轮在转动相同角度的情况下该拍摄设备的焦点移动的距离越大。同理,该跟焦轮转动的越慢,该跟焦轮在转动相同角度的情况下该拍摄设备的焦点移动的距离越小。
例如,t0时刻该跟焦轮的转动速度为1rad/s,t1时刻该跟焦轮的转动速度增大到了3rad/s。该跟焦轮以3rad/s的速度转动一个角度例如θ时该拍摄设备的焦点移动的距离大于该跟焦轮以1rad/s的速度转动相同 角度θ时该拍摄设备的焦点移动的距离。例如,该跟焦轮以1rad/s的转动速度转动时,该跟焦轮转动1度时该拍摄设备的焦点移动的距离为1厘米。该跟焦轮以3rad/s的转动速度转动时,该跟焦轮转动1度时该拍摄设备的焦点移动的距离为3厘米。
可选的,该拍摄设备的跟焦参数包括跟焦档位。所述跟焦档位用于表示所述跟焦轮转动单位角度时所述拍摄设备的焦点移动的距离。例如,该跟焦档位用于表示该跟焦轮转动1度时该拍摄设备的焦点移动的距离。其中,跟焦档位和拍摄设备的焦点移动的距离之间不一定是相等的关系,也可以是比例系数的关系,例如,该焦点移动的距离可以是该跟焦档位乘以预设系数。
当该跟焦轮的转动速度越大时,该拍摄设备的跟焦档位越高。也就是说,当该跟焦轮转动越快时,该跟焦轮转动1度的情况下该拍摄设备的焦点移动的距离也越大。
步骤S503、根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令。
进一步,该控制装置可根据该拍摄设备的类型信息和该拍摄设备当前的跟焦参数,将该跟焦轮的转动速度转换为该拍摄设备的跟焦控制指令,并将该跟焦控制指令通过如上所述的控制线发送给该拍摄设备,使得该拍摄设备可以根据该跟焦控制指令控制自己的镜头进行跟焦,从而实现了对该拍摄设备的线控跟焦。
可选的,所述根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令,包括:获取所述跟焦轮的转动角度;根据所述拍摄设备当前的跟焦参数、所述跟焦轮的转动角度和所述拍摄设备的类型信息,生成跟焦控制指令。
在本实施例中,跟焦轮在转动过程中,该跟焦轮可以将其转动速度周期性的发送给该手持云台的控制装置。例如,该跟焦轮可以每隔10毫秒发送一次转动速度。该控制装置可根据该跟焦轮发送的转动速度和发送周期,确定出该跟焦轮的转动角度。假设跟焦轮的转动角度为2度,跟焦轮当前的转动速度为3rad/s,则根据该拍摄设备的当前跟焦档位和该跟焦轮的转动角度可确定出该拍摄设备的焦点需要移动的距离为6厘米。
或者,在其他一些实施例中,该跟焦轮上还可以设置有角度传感器,该角度传感器用于检测该跟焦轮的转动角度,相应的,该控制装置通过该角度传感器获取该跟焦轮的转动角度。
可以理解,不同类型的拍摄设备,其跟焦步进值是不同的,该跟焦步进值可以理解为该控制装置每向该拍摄设备发送一个跟焦控制指令,该拍摄设备的焦点可以移动的距离。例如,对于第一类型的拍摄设备,该控制装置每向该拍摄设备发送一个跟焦控制指令,该拍摄设备的焦点可以移动的距离为1厘米。对于第二类型的拍摄设备,该控制装置每向该拍摄设备发送一个跟焦控制指令,该拍摄设备的焦点可以移动的距离为2厘米。假设该手持云台上搭载的是第一类型的拍摄设备,则当该拍摄设备的焦点需要移动的距离为6厘米时,该控制装置需要向该拍摄设备发送6个跟焦控制指令。相应的,例如,该控制装置向该拍摄设备发送6个跟焦控制指令,该拍摄设备根据该6个跟焦控制指令,控制该拍摄设备的镜头进行跟焦,使得该拍摄设备的焦点移动6厘米。
本实施例通过获取所述跟焦轮的转动速度,并根据所述跟焦轮的转动速度,确定所述拍摄设备当前的跟焦参数,使得该跟焦轮的转动速度与所述拍摄设备当前的跟焦参数成正相关,也就是说,该跟焦轮转动的越快,该跟焦轮在转动相同角度的情况下该拍摄设备的焦点移动的距离越大,从而当该拍摄设备的焦点变化较大时,若检测到用户转动该跟焦轮的速度较快,则加大跟焦轮在转动相同角度的情况下该拍摄设备的焦点移动的距离,从而实现了跟焦轮跟手的目的。
本发明实施例提供一种拍摄设备的控制方法。在上述实施例的基础上,所述手持云台还包括通讯装置,所述通讯装置用于接收控制终端发送的信息,所述通讯装置包括通讯接口或无线通讯模块。
例如,该通讯接口可以是有线通讯接口,此处并不限定有线通讯接口的类型,例如,可以是串行通讯接口。该无线通讯模块具体可以是无线保真(Wireless Fidelity,WiFi)通讯模块、蓝牙模块等。该手持云台可通过该通讯接口与该控制终端进行有线通信,或者,该手持云台可通过该无线通讯模块与该控制终端进行无线通信。具体的,该手持云台可通过该 通讯接口或该无线通讯模块接收该控制终端发送的信息。
可选的,所述获取跟焦控制指令,包括:通过所述通讯装置接收所述控制终端发送的所述跟焦控制指令。
例如,该控制终端上安装有APP,该APP提供有用户界面,用户可以在该用户界面上进行操作,例如,该用户可以在该用户界面上点击用于控制该拍摄设备进行跟焦的按钮或按键。相应的,该控制终端根据该用户的操作生成跟焦控制指令,并向该手持云台发送该跟焦控制指令。相应的,该手持云台可通过该通讯接口或该无线通讯模块接收该控制终端发送的跟焦控制指令。
可选的,所述方法还包括:通过所述通讯装置接收所述控制终端发送的拍照指令或录像指令;通过所述控制线将所述拍照指令或所述录像指令发送给所述拍摄设备,所述拍照指令用于控制所述拍摄设备拍照,所述录像指令用于控制所述拍摄设备录像。
另外,该用户界面上还可以显示有用于控制该拍摄设备进行拍照或录像的按键或按钮,当该用户操作该按键或按钮时,该控制终端生成拍照指令或录像指令,并将该拍照指令或录像指令发送给该手持云台。相应的,该手持云台通过该通讯接口或该无线通讯模块接收该控制终端发送的拍照指令或录像指令。进一步,该手持云台中的控制装置可通过控制线将所述拍照指令或所述录像指令发送给所述拍摄设备,使得该拍摄设备可根据该拍照指令进行拍照,或者,该拍摄设备根据该录像指令进行录像。
可选的,所述方法还包括:通过所述通讯装置接收所述控制终端发送的设置信息;通过所述控制线将所述设置信息发送给所述拍摄设备,所述设置信息用于设置所述拍摄设备的状态参数,所述拍摄设备的状态参数包括如下至少一种:所述拍摄设备的曝光参数、所述拍摄设备的跟焦参数。
在本实施例中,该控制终端还可以对该拍摄设备的状态参数进行设置,例如,该控制终端可以设置该拍摄设备的曝光参数、跟焦参数、变焦参数等参数。相应的,该控制终端向该手持云台发送设置信息,该手持云台通过通讯接口或该无线通讯模块接收到该控制终端发送的设置信息后,通过控制线将该设置信息发送给该拍摄设备,使得该拍摄设备根据该设置信息设置或更新自己的曝光参数、跟焦参数、变焦参数等参数。
另外,在一些实施例中,该控制装置还可以实时或周期性获取该拍摄设备的电量信息,并根据该电量信息判断该拍摄设备的电量是否低于预设电量阈值。若该拍摄设备的电量低于预设电量阈值,则该控制装置还可以进行电量预警。
此外,在另一些实施例中,该用户还可以在该控制终端的用户界面上设置该拍摄设备的跟焦档位。相应的,该控制终端可以将该用户设置的跟焦档位推送给该手持云台。或者,当该拍摄设备的跟焦档位发生变化时,该手持云台还可以将该变化后的跟焦档位发送给该控制终端。
本实施例中的手持云台通过通讯装置接收该控制终端发送的信息,使得该手持云台可通过该通讯装置接收该控制终端发送的跟焦控制指令、拍照指令、录像指令或设置信息等信息,从而使得该手持云台中的控制装置可以控制该手持云台上搭载的拍摄设备进行跟焦、拍照、录像、或设置状态参数等,使得该拍摄设备在拍摄过程中,即可设置或更新该拍摄设备的状态参数,例如,曝光参数、跟焦参数、变焦参数等,从而提高了该控制终端控制该拍摄设备的多样性和灵活性。
本发明实施例提供一种拍摄设备的控制方法。图8为本发明另一实施例提供的拍摄设备的控制方法的流程图。如图8所示,在上述实施例的基础上,所述方法还包括:
步骤S601、检测所述控制线的标识信息。
在本实施例中,控制装置可通过控制线与拍摄设备进行连接,该控制线具体可以是快门线,此处并不限定该控制线的类型。可选的,所述控制线的类型包括如下至少一种:通用串行总线(Universal Serial Bus,USB)、红外快门线、音频线。不同类型的控制线可对应不同的标识信息,例如,硬件标识(Identity,ID)。
因此,当该控制装置连接有控制线时,该控制装置可检测该控制线的标识信息。
步骤S602、根据所述控制线的标识信息,确定所述控制线的类型信息。
进一步,该控制装置可根据该控制线的标识信息,确定该控制线的类型信息。例如,根据该控制线的标识信息,确定该控制线是USB、红外快 门线、音频线中的哪一种。其中,USB具体可以是多功能相机控制线(Multi-USB),该Multi-USB用于连接该手持云台的控制装置和该拍摄设备的Multi接口。
此外,控制装置和该拍摄设备通过该控制线通信时,控制装置和该拍摄设备遵循媒体传输协议(Media Transfer Protocol,MTP)。
可选的,所述方法还包括:通过所述控制线获取所述拍摄设备的类型信息;根据所述拍摄设备的类型信息,将所述跟焦控制指令转化为所述拍摄设备可识别的类型;其中,所述拍摄设备的类型信息包括如下至少一种:所述拍摄设备的厂商信息、所述拍摄设备的型号。
该控制装置可通过该控制线例如USB获取该拍摄设备的类型信息,例如,该控制装置可根据MTP协议通过该USB获取该拍摄设备的类型信息,该拍摄设备的类型信息包括如下至少一种:所述拍摄设备的厂商信息、所述拍摄设备的型号。从而使得该控制装置可以根据该拍摄设备的型号,将跟焦控制指令转化为该拍摄设备可识别的类型。
可选的,所述方法还包括:通过所述控制线获取所述拍摄设备的状态信息,所述拍摄设备的状态信息包括如下至少一种:所述拍摄设备的快门参数、所述拍摄设备的镜头焦距、所述拍摄设备的跟焦参数。
例如,该控制装置还可以根据该MTP协议,通过该控制线读取该拍摄设备的状态信息,该拍摄设备的状态信息包括如下至少一种:所述拍摄设备的快门参数、所述拍摄设备的镜头焦距、所述拍摄设备的跟焦参数。进一步,该控制装置还可以将该拍摄设备的状态信息发送给控制终端。
另外,当该拍摄设备出现热插拔时,该控制装置还可实时检测该控制线上是否连接有拍摄设备。当控制装置检测到该控制线上连接拍摄设备时,该控制装置可重新通过该控制线获取该拍摄设备的型号,并根据该拍摄设备的型号,将跟焦控制指令转化为该拍摄设备可识别的类型。
本实施例通过控制装置检测所述控制线的标识信息,根据所述控制线的标识信息,确定所述控制线的类型信息,使得该手持云台可支持不同类型的控制线。另外,控制装置还可以通过控制线获取所述拍摄设备的类型信息,并根据所述拍摄设备的类型信息,将所述跟焦控制指令转化为所述拍摄设备可识别的类型,提高了手持云台对不同类型的拍摄设备的兼容性, 同时还可以在拍摄设备拍摄过程中控制该拍摄设备进行跟焦和/或变焦,提高了拍摄效果。
上述实施例提到了通过电机控制拍摄设备进行变焦,通过控制装置控制该拍摄设备进行跟焦。在其他实施例中,也可以通过电机控制拍摄设备进行跟焦,通过控制装置控制该拍摄设备进行变焦。相应的,该电机与该拍摄设备的跟焦环连接,当该电机转动时,该电机带动该跟焦环转动,从而控制该拍摄设备进行跟焦。如上述实施例所示,该手持云台可以连接有一个跟焦轮,也可以连接有两个跟焦轮及以上。当该手持云台连接有一个跟焦轮时,该跟焦轮可通过金属触点与该手持云台中的控制装置电连接,该控制装置可通过有线的方式分别与该电机和该拍摄设备电连接。当该跟焦轮转动时,该控制装置可根据该跟焦轮的工作状态生成与该工作状态对应的控制指令,进一步根据该控制指令控制拍摄设备变焦或跟焦,具体过程如上所述此处不再赘述。或者,该跟焦轮和该电机上可以分别安装有无线通信模块,当该跟焦轮的工作状态为控制跟焦时,该跟焦轮和该电机可以进行无线连接;当该跟焦轮的工作状态为控制变焦时,该跟焦轮和该控制装置可以进行无线连接,也可以进行有线连接。
当该手持云台连接有两个跟焦轮时,该两个跟焦轮与该手持云台中电机或控制装置的连接方式如上实施例所述,此处不再赘述。
本发明实施例提供一种拍摄设备的控制装置。所述拍摄设备搭载在手持云台上,所述手持云台安装有电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦,所述手持云台通过控制线与所述拍摄设备连接。图9为本发明实施例提供的控制装置的结构图,如图9所示,控制装置70包括存储器71和处理器72;存储器71用于存储程序代码;处理器72,调用所述程序代码,当程序代码被执行时,用于执行以下操作:获取跟焦控制指令;通过所述控制线将所述跟焦控制指令发送给所述拍摄设备,所述跟焦控制指令用于控制所述拍摄设备进行跟焦。
可选的,所述手持云台与跟焦轮连接,所述跟焦轮设置有模式切换按 键,所述模式切换按键用于控制所述跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
可选的,处理器72还用于:根据控制终端发送的模式切换指令,控制所述跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
可选的,当所述跟焦轮的工作状态为控制跟焦时,所述跟焦轮与所述手持云台中的控制装置电连接,当所述跟焦轮的工作状态为控制变焦时,所述跟焦轮与所述电机电连接。
可选的,处理器72获取跟焦控制指令时,具体用于:获取所述跟焦轮的转动速度;根据所述跟焦轮的转动速度,确定所述拍摄设备当前的跟焦参数,其中,所述跟焦参数用于表示所述跟焦轮的转动角度与所述拍摄设备的焦点移动的距离之间的对应关系,所述跟焦轮的转动速度与所述拍摄设备当前的跟焦参数成正相关;根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令。
可选的,处理器72根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令时,具体用于:获取所述跟焦轮的转动角度;根据所述拍摄设备当前的跟焦参数、所述跟焦轮的转动角度和所述拍摄设备的类型信息,生成跟焦控制指令。
可选的,所述跟焦轮的数量为至少两个,其中一个所述跟焦轮用于控制所述拍摄设备进行变焦,一个所述跟焦轮用于控制所述拍摄设备进行跟焦。
可选的,所述手持云台还包括通讯装置,所述通讯装置用于接收控制终端发送的信息,所述通讯装置包括通讯接口或无线通讯模块。
可选的,处理器72获取跟焦控制指令时,具体用于:通过所述通讯装置接收所述控制终端发送的所述跟焦控制指令。
可选的,处理器72还用于:通过所述通讯装置接收所述控制终端发送的拍照指令或录像指令;通过所述控制线将所述拍照指令或所述录像指令发送给所述拍摄设备,所述拍照指令用于控制所述拍摄设备拍照,所述录像指令用于控制所述拍摄设备录像。
可选的,处理器72还用于:通过所述通讯装置接收所述控制终端发送的设置信息;通过所述控制线将所述设置信息发送给所述拍摄设备,所 述设置信息用于设置所述拍摄设备的状态参数,所述拍摄设备的状态参数包括如下至少一种:所述拍摄设备的曝光参数、所述拍摄设备的跟焦参数。
可选的,处理器72还用于:检测所述控制线的标识信息;根据所述控制线的标识信息,确定所述控制线的类型信息。
可选的,所述控制线的类型包括如下至少一种:通用串行总线USB、红外快门线、音频线。
可选的,处理器72还用于:通过所述控制线获取所述拍摄设备的类型信息;根据所述拍摄设备的类型信息,将所述跟焦控制指令转化为所述拍摄设备可识别的类型;其中,所述拍摄设备的类型信息包括如下至少一种:所述拍摄设备的厂商信息、所述拍摄设备的型号。
可选的,处理器72还用于:通过所述控制线获取所述拍摄设备的状态信息,所述拍摄设备的状态信息包括如下至少一种:所述拍摄设备的快门参数、所述拍摄设备的镜头焦距、所述拍摄设备的跟焦参数。
本发明实施例提供的控制装置的具体原理和实现方式均与上述实施例类似,此处不再赘述。
本实施例通过手持云台的电机与拍摄设备的变焦环连接,使得该电机在转动的过程中带动该变焦环转动以控制该拍摄设备进行变焦,另外,该手持云台通过控制线向拍摄设备发送跟焦控制指令的方式控制该拍摄设备进行跟焦,也就是说,该手持云台可通过线控方式控制该拍摄设备进行跟焦,而不需要另一个电机带动该拍摄设备的跟焦环转动以控制该拍摄设备进行跟焦,从而使得该手持云台只需要一个电机的情况下就可以控制该拍摄设备进行变焦和跟焦,降低了该手持云台的载重,便于用户控制该手持云台。
本发明实施例提供一种手持云台。该手持云台包括:云台、基座、电机以及如上实施例所述的控制装置。其中,云台用于承载拍摄设备;云台和基座连接,电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦。另外,该手持云台还可以连接有跟焦轮。
该控制装置可用于执行上述方法实施例的技术方案,其实现原理和技术效果类似,此处不再赘述。
如图10所示为手持云台的云台的一个示意图。该手持云台的基座未示出,该基座具体可以是手持杆、手柄等部件。该基座具体可以在如图10所示的云台的下方。该云台上承载有拍摄设备,该拍摄设备的变焦环与电机101连接。如上所述的控制装置位于连接件102中,该控制装置可通过第一控制线103与该电机电连接,以及通过第二控制线104与该拍摄设备电连接。具体的,如上所述的跟焦轮可设置在该基座上,或者是该手持云台的其他位置处。该跟焦轮通过金属触点与该基座电连接,该金属触点与该控制装置电连接。
可以理解的是,本实施例并不限定控制装置在该手持云台中的安装位置,例如,该控制装置还可以安装在基座中。
另外,本实施例还提供一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行以实现上述实施例所述的拍摄设备的控制方法。
在本发明所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的装置的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (32)

  1. 一种拍摄设备的控制方法,其特征在于,所述拍摄设备搭载在手持云台上,所述手持云台安装有电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦,所述手持云台通过控制线与所述拍摄设备连接,所述方法包括:
    获取跟焦控制指令;
    通过所述控制线将所述跟焦控制指令发送给所述拍摄设备,所述跟焦控制指令用于控制所述拍摄设备进行跟焦。
  2. 根据权利要求1所述的方法,其特征在于,所述手持云台与跟焦轮连接,所述跟焦轮设置有模式切换按键,所述模式切换按键用于控制所述跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
  3. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    根据控制终端发送的模式切换指令,控制跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
  4. 根据权利要求2或3所述的方法,其特征在于,当所述跟焦轮的工作状态为控制跟焦时,所述跟焦轮与所述手持云台中的控制装置电连接,当所述跟焦轮的工作状态为控制变焦时,所述跟焦轮与所述电机电连接。
  5. 根据权利要求2所述的方法,其特征在于,所述获取跟焦控制指令,包括:
    获取所述跟焦轮的转动速度;
    根据所述跟焦轮的转动速度,确定所述拍摄设备当前的跟焦参数,其中,所述跟焦参数用于表示所述跟焦轮的转动角度与所述拍摄设备的焦点移动的距离之间的对应关系,所述跟焦轮的转动速度与所述拍摄设备当前的跟焦参数成正相关;
    根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令。
  6. 根据权利要求5所述的方法,其特征在于,所述根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令,包括:
    获取所述跟焦轮的转动角度;
    根据所述拍摄设备当前的跟焦参数、所述跟焦轮的转动角度和所述拍摄设备的类型信息,生成跟焦控制指令。
  7. 根据权利要求2所述的方法,其特征在于,所述跟焦轮的数量为至少两个,其中一个所述跟焦轮用于控制所述拍摄设备进行变焦,一个所述跟焦轮用于控制所述拍摄设备进行跟焦。
  8. 根据权利要求1所述的方法,其特征在于,所述手持云台还包括通讯装置,所述通讯装置用于接收控制终端发送的信息,所述通讯装置包括通讯接口或无线通讯模块。
  9. 根据权利要求8所述的方法,其特征在于,所述获取跟焦控制指令,包括:
    通过所述通讯装置接收所述控制终端发送的所述跟焦控制指令。
  10. 根据权利要求8所述的方法,其特征在于,所述方法还包括:
    通过所述通讯装置接收所述控制终端发送的拍照指令或录像指令;
    通过所述控制线将所述拍照指令或所述录像指令发送给所述拍摄设备,所述拍照指令用于控制所述拍摄设备拍照,所述录像指令用于控制所述拍摄设备录像。
  11. 根据权利要求8所述的方法,其特征在于,所述方法还包括:
    通过所述通讯装置接收所述控制终端发送的设置信息;
    通过所述控制线将所述设置信息发送给所述拍摄设备,所述设置信息用于设置所述拍摄设备的状态参数,所述拍摄设备的状态参数包括如下至少一种:
    所述拍摄设备的曝光参数、所述拍摄设备的跟焦参数。
  12. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    检测所述控制线的标识信息;
    根据所述控制线的标识信息,确定所述控制线的类型信息。
  13. 根据权利要求12所述的方法,其特征在于,所述控制线的类型包括如下至少一种:
    通用串行总线USB、红外快门线、音频线。
  14. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    通过所述控制线获取所述拍摄设备的类型信息;
    根据所述拍摄设备的类型信息,将所述跟焦控制指令转化为所述拍摄设备可识别的类型;
    其中,所述拍摄设备的类型信息包括如下至少一种:
    所述拍摄设备的厂商信息、所述拍摄设备的型号。
  15. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    通过所述控制线获取所述拍摄设备的状态信息,所述拍摄设备的状态信息包括如下至少一种:
    所述拍摄设备的快门参数、所述拍摄设备的镜头焦距、所述拍摄设备的跟焦参数。
  16. 一种拍摄设备的控制装置,其特征在于,所述拍摄设备搭载在手持云台上,所述手持云台安装有电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦,所述手持云台通过控制线与所述拍摄设备连接;所述控制装置包括:存储器和处理器;
    所述存储器用于存储程序代码;
    所述处理器,调用所述程序代码,当程序代码被执行时,用于执行以下操作:
    获取跟焦控制指令;
    通过所述控制线将所述跟焦控制指令发送给所述拍摄设备,所述跟焦控制指令用于控制所述拍摄设备进行跟焦。
  17. 根据权利要求16所述的控制装置,其特征在于,所述手持云台与跟焦轮连接,所述跟焦轮设置有模式切换按键,所述模式切换按键用于控制所述跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
  18. 根据权利要求16所述的控制装置,其特征在于,所述处理器还用于:
    根据控制终端发送的模式切换指令,控制跟焦轮的工作状态在控制跟焦和控制变焦之间切换。
  19. 根据权利要求17或18所述的控制装置,其特征在于,当所述跟焦轮的工作状态为控制跟焦时,所述跟焦轮与所述手持云台中的控制装置电连接,当所述跟焦轮的工作状态为控制变焦时,所述跟焦轮与所述电机电连接。
  20. 根据权利要求17所述的控制装置,其特征在于,所述处理器获 取跟焦控制指令时,具体用于:
    获取所述跟焦轮的转动速度;
    根据所述跟焦轮的转动速度,确定所述拍摄设备当前的跟焦参数,其中,所述跟焦参数用于表示所述跟焦轮的转动角度与所述拍摄设备的焦点移动的距离之间的对应关系,所述跟焦轮的转动速度与所述拍摄设备当前的跟焦参数成正相关;
    根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令。
  21. 根据权利要求20所述的控制装置,其特征在于,所述处理器根据所述拍摄设备当前的跟焦参数,生成所述跟焦控制指令时,具体用于:
    获取所述跟焦轮的转动角度;
    根据所述拍摄设备当前的跟焦参数、所述跟焦轮的转动角度和所述拍摄设备的类型信息,生成跟焦控制指令。
  22. 根据权利要求17所述的控制装置,其特征在于,所述跟焦轮的数量为至少两个,其中一个所述跟焦轮用于控制所述拍摄设备进行变焦,一个所述跟焦轮用于控制所述拍摄设备进行跟焦。
  23. 根据权利要求16所述的控制装置,其特征在于,所述手持云台还包括通讯装置,所述通讯装置用于接收控制终端发送的信息,所述通讯装置包括通讯接口或无线通讯模块。
  24. 根据权利要求23所述的控制装置,其特征在于,所述处理器获取跟焦控制指令时,具体用于:
    通过所述通讯装置接收所述控制终端发送的所述跟焦控制指令。
  25. 根据权利要求23所述的控制装置,其特征在于,所述处理器还用于:
    通过所述通讯装置接收所述控制终端发送的拍照指令或录像指令;
    通过所述控制线将所述拍照指令或所述录像指令发送给所述拍摄设备,所述拍照指令用于控制所述拍摄设备拍照,所述录像指令用于控制所述拍摄设备录像。
  26. 根据权利要求23所述的控制装置,其特征在于,所述处理器还用于:
    通过所述通讯装置接收所述控制终端发送的设置信息;
    通过所述控制线将所述设置信息发送给所述拍摄设备,所述设置信息用于设置所述拍摄设备的状态参数,所述拍摄设备的状态参数包括如下至少一种:
    所述拍摄设备的曝光参数、所述拍摄设备的跟焦参数。
  27. 根据权利要求16所述的控制装置,其特征在于,所述处理器还用于:
    检测所述控制线的标识信息;
    根据所述控制线的标识信息,确定所述控制线的类型信息。
  28. 根据权利要求27所述的控制装置,其特征在于,所述控制线的类型包括如下至少一种:
    通用串行总线USB、红外快门线、音频线。
  29. 根据权利要求16所述的控制装置,其特征在于,所述处理器还用于:
    通过所述控制线获取所述拍摄设备的类型信息;
    根据所述拍摄设备的类型信息,将所述跟焦控制指令转化为所述拍摄设备可识别的类型;
    其中,所述拍摄设备的类型信息包括如下至少一种:
    所述拍摄设备的厂商信息、所述拍摄设备的型号。
  30. 根据权利要求16所述的控制装置,其特征在于,所述处理器还用于:
    通过所述控制线获取所述拍摄设备的状态信息,所述拍摄设备的状态信息包括如下至少一种:
    所述拍摄设备的快门参数、所述拍摄设备的镜头焦距、所述拍摄设备的跟焦参数。
  31. 一种手持云台,其特征在于,包括:
    云台,用于承载拍摄设备;
    基座,所述云台和所述基座连接;
    电机,所述电机能够与所述拍摄设备的变焦环连接,并带动所述变焦环转动以控制所述拍摄设备进行变焦;以及
    权利要求16-30任一项所述的控制装置。
  32. 一种计算机可读存储介质,其特征在于,其上存储有计算机程序,所述计算机程序被处理器执行以实现权利要求1-15任一项所述的方法。
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