WO2022261908A1

WO2022261908A1 - Control method for photographing device, device, and storage medium

Info

Publication number: WO2022261908A1
Application number: PCT/CN2021/100716
Authority: WO
Inventors: 殷汇鹏; 赵亚辉; 曹中源; 耶方明
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-12-22
Also published as: CN116671122A

Abstract

A control method for a photographing device, a control apparatus, a follow focus device, a follow focus system, and a storage medium. The control method comprises: acquiring a follow focus control signal inputted by a user on the basis of the follow focus device (S101); controlling the photographing device to photograph in a manual follow focus mode according to the follow focus control signal (S102); and controlling the photographing device to photograph in an auto follow focus mode at the end of the manual follow focus mode (S103).

Description

Shooting device control method, device and storage medium

technical field

The present application relates to the technical field of photographing, and in particular to a control method, a control device, a focus device, a focus system, and a storage medium of a photographic device.

Background technique

With the pursuit of photographic quality, people generally use cameras with follow-focus function to take higher-quality photographs and videos. For example, the lens of the camera (SLR or micro-mirror) has a zoom ring to achieve manual focus, or the lens of the camera (SLR or micro-reflector) is provided with a motor inside to achieve automatic focus. However, manual focus requires a high level of operating experience for users, and automatic focus cannot cover all distances or environments, so it cannot provide users with a better shooting experience.

Contents of the invention

Embodiments of the present application provide a control method, a control device, a focus device, a focus system, and a storage medium for a photographing device, so as to improve a user's photographing experience.

In a first aspect, an embodiment of the present application provides a method for controlling a photographing device, the method including:

Obtaining a follow focus control signal input by a user based on a focus focus device, wherein the focus focus device includes a motor and an operation part, the operation part is used for the user to operate to input the focus focus control signal, and the operation part is connected to the focus control signal The rotating part of the motor is mechanically coupled;

According to the follow focus control signal, control the shooting device to take pictures according to the manual follow focus mode;

When the manual focus mode ends, the photographing device is controlled according to the automatic focus mode to shoot.

In addition, the embodiment of the present application also provides another method for controlling a photographing device, the method including:

Obtain the target parameters of the target closed-loop corresponding to the motor of the focus-following device, wherein the focus-following device includes a motor and an operating part, and the operating part is used for the user to operate and input the follow-focus for controlling the shooting device to follow the focus a control signal, the operating part is mechanically coupled to the rotating part of the motor;

controlling the motor of the focus-focusing device to operate in a closed-loop target according to the target parameters, so as to control the shooting device to shoot in a combined focus-following mode;

Wherein, the follow-focus combination mode is: the automatic follow-focus mode is automatically adopted when the manual follow-focus mode stops, or the follow-focus mode in which the manual follow-focus mode is allowed to be executed during the execution of the automatic follow-focus mode.

When the shooting device is controlled to shoot according to the manual focus mode, the target parameters corresponding to the target closed-loop of the motor of the focus device are obtained, and the focus device also includes an operation part, and the operation part is used for user operation and input A focus control signal for controlling the shooting device to focus, the operating component is mechanically coupled with the rotating part of the motor;

According to the target parameter, the motor of the focus focus device is controlled to run in a closed loop according to the target, so that when the manual focus focus mode ends, the photographing equipment can be controlled according to the automatic focus focus mode to take pictures.

Acquiring in real time the actual focus information when the shooting device adopts the automatic focus mode to shoot;

controlling the motor in the focus-following device to rotate to a position corresponding to the actual focus information, wherein the focus-following device includes a motor and an operating part, and the operating part is used for user operation and input for controlling the shooting device to perform A follow-focus control signal for focus, the operating component is mechanically coupled with the rotating part of the motor.

In a second aspect, the embodiment of the present application further provides a control device, the control device includes a memory and a processor;

The memory is used to store computer programs;

The processor is configured to execute the computer program and, when executing the computer program, implement the method for controlling the photographing device described in any one of the embodiments of the present application.

In a third aspect, the present application also provides a focus-following device, the focus-following device comprising:

motor;

An operating part, used for user operation to input a focus control signal, the operating part is mechanically coupled with the rotor of the motor, and can drive the rotor of the motor to rotate together;

a drive circuit, the drive circuit is connected to the motor and is used to drive the motor to rotate;

a main control circuit, the main control circuit is connected to the driving circuit, and the main control circuit includes a memory and a processor;

The memory is used to store computer programs;

The processor is configured to execute the computer program and, when executing the computer program, implement the steps of the method for controlling a photographing device according to any one of the embodiments of the present application.

In the fourth aspect, the embodiment of the present application also provides a follow-focus system, the follow-focus system includes:

Fixed equipment, the fixed equipment is used to carry shooting equipment;

According to any one of the following focus devices provided in the embodiments of the present application, the follow focus device is set on the fixed device or the follow focus device is set independently from the fixed device, and the follow focus device is used to control all The photographing device performs follow-focus photography on the subject.

In the fifth aspect, the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor realizes the implementation of the present application. The steps of the method for controlling the photographing device described in any one of the examples provided.

The control method, control device, follow focus device, follow focus system and storage medium of the shooting equipment disclosed in the embodiments of the present application realize a new follow focus mode that combines the manual follow focus mode and the automatic follow focus mode. The mode can make the shooting device automatically use the automatic focus mode to shoot when it stops using the manual focus mode, thereby improving the user's shooting experience.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is a schematic structural diagram of a follow-focus device provided by an embodiment of the present application;

Fig. 2 is a schematic diagram of a circuit structure of a follow-focus device provided by an embodiment of the present application;

Fig. 3 is a schematic structural diagram of the motor part of the focus device provided by the embodiment of the present application;

Fig. 4 is a schematic cross-sectional structure diagram along the A-A direction of Fig. 3;

5 is a schematic diagram of the principle of the closed-loop control of the motor provided by the embodiment of the present application;

Fig. 6 is a schematic diagram of the principle of the simulated damping operation feeling provided by the embodiment of the present application;

Fig. 7 is a schematic diagram of the corresponding relationship between the output limit and the motor speed provided by the embodiment of the present application;

Fig. 8 is a schematic diagram of the circuit structure of another focus device provided by the embodiment of the present application;

Fig. 9 is a schematic diagram of the circuit structure of another focus device provided by the embodiment of the present application;

Fig. 10 is a schematic diagram of the circuit structure of another focus device provided by the embodiment of the present application;

Fig. 11 is a schematic diagram of the circuit structure of another focus device provided by the embodiment of the present application;

FIG. 12 is a schematic flowchart of steps of a method for controlling a photographing device provided in an embodiment of the present application;

Fig. 13 is a schematic diagram of a focus display interface provided by an embodiment of the present application;

Fig. 14 is a schematic flowchart of steps of another method for controlling a shooting device provided in an embodiment of the present application;

Fig. 15 is a schematic flowchart of steps of another method for controlling a photographing device provided in an embodiment of the present application;

Fig. 16 is a schematic flowchart of steps of another method for controlling a photographing device provided in an embodiment of the present application;

Fig. 17 is a schematic block diagram of a control device provided by an embodiment of the present application.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

It should also be understood that the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural referents unless the context clearly dictates otherwise.

It should also be further understood that the term "and/or" used in the description of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .

The flow charts shown in the drawings are just illustrations, and do not necessarily include all contents and operations/steps, nor must they be performed in the order described. For example, some operations/steps can be decomposed, combined or partially combined, so the actual order of execution may be changed according to the actual situation.

The inventor found that although the current shooting equipment can realize the automatic focus mode and the manual focus mode respectively, these two follow focus modes are independent of each other, and the user needs to switch when using it, and when using a certain focus mode, it is necessary to exit another focus mode. A follow-focus mode, which brings inconvenience to the user's operation.

The inventor also found that the automatic focus mode and the manual focus mode have their own advantages and limitations. The two modes can complement each other to a certain extent. The automatic focus mode focuses accurately, but it cannot cover all distances or environments, and the user cannot intervene when focusing. , Some lens processing is difficult to achieve flexible focusing requirements; manual focus mode can cover various distances and environments, but requires high operating experience for users, and there may be problems such as operational errors. If the two modes can be organically combined, not only can the advantages of the two follow focus modes be used to improve the user's shooting experience, but also higher quality images can be captured.

In addition, the inventor also found that in the automatic focus mode, there is basically no interaction between the photographer and the focusing process, and the photographer cannot understand the state of the focus (such as the focus speed, the direction of the focus, etc.), and the focus process It is too mechanized and rigid, which also reduces the user's shooting experience.

To this end, the embodiments of the present application provide a control method, a control device, a follow-focus device, a follow-focus system, and a computer-readable storage medium for a photographic device, so as to provide a brand-new follow-focus mode (follow-focus combined mode) Control the shooting equipment for follow-focus shooting.

Wherein, the follow-focus combination mode specifically refers to automatically adopting the automatic follow-focus mode when the manual follow-focus mode stops, or a follow-focus mode that allows the manual follow-focus mode to be executed during the execution of the automatic follow-focus mode, without requiring the user to switch Operation, thereby improving the user's shooting experience.

Some implementations of the present application will be described in detail below in conjunction with the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1. FIG. 1 shows the structure of a follow-focus device 100 provided by an embodiment of the present application. As shown in FIG. The follow focus motor 20 is connected in communication, and the remote controller 10 is used to control the rotation of the follow focus motor 20 to drive the movement of the lens of the shooting device 30. Specifically, it can drive the movement of the focus lens of the shooting device 30 to achieve focusing on the shooting target and also can Realize the follow-focus shooting of the shooting target.

Wherein, the remote controller 10 and the follow focus motor 20 are connected in communication, for example, a wireless communication connection, or a wired communication connection of course.

It should be noted that the remote controller 10 and the follow focus motor 20 shown in FIG. 1 do not constitute a limitation on the specific structural form of the follow focus device 100, that is, the remote controller 10 and the follow focus motor 20 may be of separate design , specifically as shown in FIG. 1 , of course, it can also be designed as one. The integrated design is specifically that the remote control 10 and the follow focus motor 20 are set together. For example, they can be set in the same casing or fixed together but detachable.

Of course, in some embodiments, the follow focus device 100 may not include the follow focus motor 20, but communicate with the follow focus motor 20 to control the follow focus motor 20, that is, it can be understood that the follow focus motor 20 is a standalone device.

The follow focus motor 20 includes a gear 21 , which is used to mesh with a focus ring 31 on the photographing device 30 , and the focus ring 31 is fixedly arranged on the lens of the photographing device 30 . The follow focus motor 20 is mechanically coupled with the gear 21 to drive the gear 21 to rotate. After the gear 21 rotates, it drives the follow focus ring 31 to rotate. The rotation of the follow focus ring 31 will drive the focus lens of the shooting device 30 to move, thereby realizing the focus on the shooting target. Shoot with focus.

In some embodiments, both the photographing device 30 and the follow focus motor 20 are set on a fixed device, wherein the fixed device may include a camera bracket, an airborne gimbal or a handheld gimbal, and the like.

In some embodiments, the remote controller 10 can be independent of the fixed device. In other embodiments, the remote controller 10 can also be integrated into the fixed device to facilitate user operation. For example, the remote controller 10 can be integrated into the handle of the handheld pan/tilt.

Exemplarily, as shown in FIG. 1 , both the follow focus motor 20 and the shooting device 30 can be arranged on a camera bracket 40 , the camera bracket 40 is a kind of fixed device, and the gear 21 of the follow focus motor 20 and the shooting device 30 The follow focus ring 31 is meshed and connected, and is used to drive the follow focus ring 31 to rotate.

The following will take FIG. 1 in combination with FIG. 2 as an example to introduce the specific structure and working principle of the follow focus device 100 provided by the present application in detail.

When referring to FIG. 1 , please refer to FIG. 2 at the same time. FIG. 2 shows the circuit structure of the focus device 100 . As shown in FIG. 2 , the follow-focus device 100 includes an operating part 11, a motor 12, a drive circuit 13 and a main control circuit 14, wherein the motor 12 includes a rotor and a coil, and specifically the remote controller 10 includes an operating part 11, a motor 12, The driving circuit 13 and the main control circuit 14.

The operating part 11 is used for the user to operate and input the focus control signal, for example, when the user rotates the operating part 11, the focus control signal is generated, and the remote controller 10 can drive the camera device 30 through the focus motor 20 according to the focus control signal. Lens movement achieves focus.

The operating part 11 is mechanically coupled with the rotating part (such as the rotor) of the motor 12, and can drive the rotating part of the motor 12 to rotate together, and give the motor 12 a torque, so that the user can detect the operating part 11 through the motor 12; When the rotating part of the motor 12 rotates, it will also drive the operation part 11 to move, thereby providing feedback to the user through the operation part 11 .

Exemplarily, in the embodiment of the present application, the rotating part of the motor 12 will also drive the operation part 11 to move when it rotates, and the corresponding operation feeling can be simulated and fed back to the operation part 11. The operation feeling can include a damping operation feeling, Certainly, other types of operation senses may also be included, which are not limited here.

In some embodiments, as specifically shown in FIG. 1 , FIG. 3 or FIG. 4 , the operating component 11 is, for example, an apron 110, which is mechanically coupled with the rotating part of the motor 12, such as through a shaft connection or through a gear connection, etc. , when the user rotates the apron 110, the apron 110 can drive the rotating part of the motor 12 to rotate together, and at the same time, the rotating part of the motor 12 will also drive the apron 110 to move.

In some embodiments, the operating part 11 of the focus device 100 can also be provided with damping grease, which is used to provide a damping operation feeling, and the damping grease can be used to realize the damping operation feeling without using the motor 12 of the focus device 100. Simulates the feel of this damped operation.

In some embodiments, as shown in FIG. 3 and FIG. 4 , the remote controller 10 further includes a circuit board 15 on which a driving circuit 13 and/or a main control circuit 14 are disposed. Specifically, the drive circuit 13 can be arranged on the circuit board 15, and the circuit board 15 can also be provided with a position sensor, such as a Hall sensor 160, which cooperates with the magnetic ring 16 arranged on the motor 12 to detect the position of the rotating part of the motor 12. angular position information.

The motor 12 may include a permanent magnet synchronous motor or a DC motor, and of course may also be other types of motors, which are not limited here. As shown in FIG. 4 , the motor 12 includes a rotating part 121 and a coil 122 .

The driving circuit 13 is connected with the motor 12 to drive the rotating part 121 of the motor 12 to rotate. Specifically, the driving circuit 13 can adopt a three-phase inverter bridge circuit, and drive the rotating part 121 of the motor 12 to rotate through PWM signals.

The main control circuit 14 is connected with the drive circuit 13, and is used to complete the output torque control and target closed-loop control of the motor 12 according to the angular position information of the rotating part 121 of the motor 12 and the electrical parameters of the coil 122 of the motor 12. The main control circuit 14 A processor and memory may be included, and the electrical parameters of the coils of the motor 12 include current and/or voltage.

In some embodiments, a distance measuring device can also be set on the shooting device 30 for measuring the distance from the shooting target to the shooting device 30. Of course, the distance measuring device can also be set at other positions, such as setting the distance measuring device on the camera bracket 40 superior.

The lens of the photographing device 30 is coupled to the follow focus motor 20, and the follow focus motor 20 is used to drive the lens of the photographing device 30 to rotate, so that the photographing device 30 adopts a manual follow focus mode or an automatic follow focus mode to perform photographing, wherein, during the photographing When the device 30 adopts the automatic focus mode to shoot, the follow focus motor 20 communicates with the distance measuring device, and the distance measuring device is used to measure the distance from the shooting target to the shooting device.

In some embodiments, the distance measuring device may specifically be, for example, a TOF sensor, and of course it may also be other, such as a laser distance measuring device or a binocular camera.

In the embodiment of the present application, as shown in FIG. 5 , the motor 12 of the focus-following device 100 can be controlled to operate in a closed-loop manner according to the target parameters. Specifically, the target closed loop includes at least one of a position closed loop and a velocity closed loop, and corresponding target parameters include target position and target velocity, etc., and the target closed loop is used to realize the follow-focus combination mode provided by this application, which can also be called AMF In addition, different target closed-loops can also be used to simulate different types of operation senses, and different types of operation senses correspond to different motor control strategies.

It should be noted that, based on the focus device described above, the embodiments of the present application provide three focus modes, namely: manual focus mode, automatic focus mode and combined focus mode.

The manual follow focus mode refers to the follow focus mode that requires manual operation by the user. For example, the user rotates the rubber ring 110 of the remote control 10, and the remote control 10 controls the follow focus motor 20 to drive the lens of the shooting device 30 according to the angle position information of the rotation of the rubber ring 110. The follow-focus shooting mode is realized by moving, or the user directly operates the zoom ring of the shooting device 30 to control the movement of the lens to realize the follow-focus shooting mode.

The automatic focus mode means that the follow-focus device 100 drives the lens of the shooting device 30 to move according to the distance of the shooting target, so as to realize the follow-focus shooting mode of the shooting target; or it can also refer to driving the internal lens of the shooting device 30 according to the image captured by the shooting device 30 Move to realize the follow-focus shooting mode of the shooting target, that is, the shooting device 30 includes a motor (motor), and the motor (motor) is coupled with the focusing lens of the shooting device 30 so as to realize automatic focusing.

The follow-focus combined mode refers to automatically adopting the automatic follow-focus mode when the manual follow-focus mode stops, or a follow-focus mode that allows the manual follow-focus mode to be executed during the execution of the automatic follow-focus mode.

In some embodiments, the user can choose which mode to use among the three target focus modes of the focus device provided by the present application. For example, if the user selects the automatic focus mode, the automatic focus mode is used to control the shooting device. For follow-focus shooting, for example, if the user selects the follow-focus combination mode, then the follow-focus combination mode is used to control the shooting device to perform follow-focus shooting.

Specifically, the selection instruction of the focus mode can be obtained, and the focus mode includes the focus combination mode, the automatic focus mode and the manual focus mode, and the target follow focus mode is selected among the three follow focus modes according to the selection instruction, so that the shooting The device 30 adopts the target focus mode for shooting.

Exemplarily, a mode selection button may be set on the focus focus device 100 , and a target focus focus mode is determined from three focus focus modes according to the operation of the mode selection button by the user. Alternatively, the focus focus device 100 includes a touch display screen, on which the three modes are displayed for selection by the user, and then a selection instruction of a corresponding focus focus mode is generated.

In addition, different target closed-loops can also be used to simulate different types of operating senses, and different types of operating senses correspond to different motor control strategies. For example, as shown in Table 1, different types of operating senses can include damping operating senses, The operation feeling of the pulsator or the rebound operation feeling, wherein, the speed closed loop is used to simulate the damping operation feeling, and the position closed loop is used to simulate the pulsator operation feeling and the rebound operation feeling.

Table 1 shows that different types of operation sense correspond to different motor control strategies

操作感的类型Type of manipulation	目标闭环target closed loop	电机控制策略Motor Control Strategy
阻尼操作感Damping operation feeling	速度闭环speed closed loop	电机控制策略ⅠMotor Control Strategy I
波轮操作感Wave wheel operation feeling	位置闭环Position closed loop	电机控制策略ⅡMotor Control Strategy II
回弹操作感Rebound sense of operation	位置闭环Position closed loop	电机控制策略ⅢMotor Control Strategy III

In Table 1, the damping operation sense corresponds to the speed closed loop, that is, the speed closed loop is used to realize the feedback of the damping operation sense, and the simulated pulsator operation sense and rebound operation sense correspond to the position closed loop, that is, the position closed loop is used to simulate the pulsator operation sense and rebound Play the sense of operation. Although the analog pulsator operation sense and the rebound operation sense both correspond to the position closed loop, but the corresponding motor control strategies are different.

Specifically, Table 1 may be stored in the memory of the focus-focusing device, so that after the operation feeling that needs to be simulated is determined, the table is queried to determine the motor control strategy corresponding to the operation feeling that needs to be simulated.

After the output torque control of the motor 12 is completed, the main control circuit 14 is also used to: determine the operation feeling that needs to be simulated, and control the operation of the motor 12 based on the motor control strategy corresponding to the operation feeling that needs to be simulated, so as to provide corresponding operation feeling feedback.

Exemplarily, for example, if it is determined that the operation feeling that needs to be simulated is a damping operation feeling, then the motor 12 is controlled to run based on the motor control strategy I corresponding to the damping operation feeling, and then the corresponding damping operation feeling feedback is provided; another example is determined that the operation feeling that needs to be simulated is The rebound operation sense is based on the motor control strategy III corresponding to the rebound operation sense to control the operation of the motor 12, and then provide the corresponding rebound operation sense feedback.

The operation of the motor 12 is controlled based on the motor control strategy corresponding to the sense of operation that needs to be simulated. Specifically, the motor 12 can be controlled to run according to the target closed-loop operation corresponding to the sense of operation that needs to be simulated, and the target parameters are determined and the target is input into the target closed-loop for closed-loop adjustment. , to provide corresponding operational feedback.

Exemplarily, as shown in Figure 5, for example, if it is determined that the operation feeling that needs to be simulated is a damping operation feeling, the motor can be controlled to run according to the speed closed loop, and the target speed can be determined, and the target speed can be input into the speed closed loop for closed-loop adjustment, thereby providing damping operation Feeling feedback; for another example, if it is determined that the operating feeling to be simulated is the rebounding operating sense, the motor can be controlled to enter the position closed loop, and the target position can be determined to input the target position to the position closed loop for closed-loop adjustment, thereby providing rebounding operating sense feedback.

In some embodiments, when the main control circuit 14 completes the output torque control of the motor 12, it can be specifically used to: realize the current closed-loop control of the motor 12 according to the angle position information of the rotating part 121 and the current of the coil 122, and then The output torque control of the motor 12 is completed. And the current of the coil 122 of the motor 12 has a linear relationship with the output torque, that is, the greater the current of the motor, the greater the output torque, so that the intensity of the same type of operation feeling can be easily adjusted to meet the needs of different users , and then solve the different needs of different users, thereby improving the user experience.

Determine the operation feeling that needs to be simulated, which can be determined according to the detected operating parts. For example, when it is detected that the user operates the rubber ring 110, it is determined that the operation feeling that needs to be simulated is a damping operation feeling; another example is when it is detected that the user operates a rebound When creating a component, determine that the operating feeling that needs to be simulated is the rebound operating feeling. Of course, the determination of the operation feeling that needs to be simulated may also be determined according to the type of operation feeling selected by the user.

The focus device provided by the embodiment of the present application can simulate the corresponding operation feeling by controlling the corresponding motor control strategy on different target closed loops, and then provide different operation feeling feedback, such as providing damping operation feeling, pulsator operation Feel and rebound operation sense, etc., through the motor to simulate different operation sense, it can not be affected by environmental factors, thereby improving the user experience.

The following will introduce the specific control strategies for the three operational senses provided by the embodiments of the present application in conjunction with the accompanying drawings, namely, the motor control strategy corresponding to the damping operational sense, the motor control strategy corresponding to the pulsator operational sense, and the motor control strategy corresponding to the rebound operational sense. .

In some embodiments, if the simulated operating feeling is a damping operating feeling, the corresponding motor control strategy I is: control the motor 12 to run according to the closed-loop speed, set the target speed to zero and input it to the closed-loop speed, so that the motor 12 according to The target speed is adjusted in a closed-loop speed loop to provide damping operation feedback.

In a specific application, if the simulated operation feeling is a damping operation feeling, the operating part may specifically be a rotating part, and the rotating part is mechanically coupled with the rotating part of the motor 12. When the user operates the rotating part, the main control circuit 14 controls the The motor runs the motor control strategy I to simulate the damping operation feeling and feeds back to the rotating part so that the user can feel the damping feel.

In some embodiments, the rotating part can specifically be the apron 110, which is used to adjust the focal length of the lens, and the apron 110 and the rotating part 121 of the motor 12 can drive the rotation of the motor 12 through gearing or other means. Parts 121 rotate together. The rotating component can also be other components that realize the adjustment of the rotating function, which is not limited here.

Exemplarily, as shown in FIG. 6 , the apron 110 is used as an example to introduce the damping operation feeling. When the user twists the apron 110 , for example, the direction of the user’s twist is counterclockwise, since the apron 110 and the rotating part 121 of the motor 12 are mechanically Coupling connection, so the rubber ring 110 will drive the rotating part 121 of the motor 12 to rotate, for example, it also rotates counterclockwise, and the motor 12 is controlled to run according to the closed-loop speed, and the target speed of zero is input into the closed-loop speed, and the motor 12 is controlled according to the target speed. The speed is adjusted in a closed-loop speed. Since the target speed is zero, the apron 110 rotates counterclockwise (forward rotation), and the speed closed-loop error is negative. The motor will output a reverse torque according to the positive rotation speed, which will make the rotating part of the motor 12 121 rotates in the opposite direction (clockwise direction), preventing the user from twisting the apron 110 , thereby providing damping operation feedback to the apron 110 .

Similarly, if the rubber ring 110 rotates clockwise (reverse rotation), the speed closed-loop error is positive, and the motor will output a positive torque according to the reverse rotation speed, that is, the rotating part 121 of the motor 12 will rotate in the opposite direction (counterclockwise direction) The rotation prevents the user from twisting the rubber ring 110, so that the user feels a damping feel. Due to the damping operation feeling simulated by the motor, it will not be affected by environmental factors such as temperature, thereby improving the user experience.

In some embodiments, in order to make the simulated damping operation feel more realistic, so as to improve user experience. When providing damping operation feedback, the rotational speed of the motor 12 is positively correlated with the output torque of the motor 12, and the output torque is not greater than a preset threshold.

The faster the rotation speed of the motor 12 means that the user is happy with the twisting speed. Since the rotation speed of the motor 12 is positively correlated with the output torque of the motor 12, the faster the rotation speed of the motor 12, the greater the output torque of the motor 12, so the corresponding resistance is greater. The larger the value, the stronger the damping operation feeling, which will make the damping operation feel more realistic.

Exemplarily, as shown in Figure 7, the damping sense cannot be increased all the time when twisting, so the output torque is limited not to exceed the preset threshold A ₀ , that is, when the motor speed reaches a certain value V ₀ , the output torque no longer increases with the speed increase and increase.

In some embodiments, if the operation feeling to be simulated is a pulsator operation feeling, the corresponding motor control strategy II is: control the motor 12 to operate in a closed-loop position, obtain the current position of the rotating part 121 of the motor 12, and determine the target according to the current position gear position, and input the determined target gear position as the target position into the position closed loop, so that the motor 12 can perform position closed-loop adjustment according to the target position, and then provide feedback of the pulsator operation feeling.

Exemplarily, when the simulated operating feeling is a pulsator operating feeling, the operating component may specifically be a knob component, such as the knob 111 in FIG. When the rotating part rotates, it drives the rotating part 11 of the motor 12 to rotate together; when the user operates the knob part, the main control circuit 14 controls the motor 12 to run to simulate the operation feeling of the pulsator and feeds back to the knob part.

For example, the knob 111 corresponds to different gear functions, specifically six gear functions, namely gear I, gear II, gear III, gear IV, gear V and gear VI, and different gears have Different functions, so that the user can select the corresponding gear function by rotating the knob 111. When the user rotates the knob 111, it is necessary to simulate the operation feeling of the pulsator to feed back to the user, so that the user can feel the rotation to a specific gear.

Because the target gear position is input into the position closed loop as the target position, so that the motor 12 can perform position closed loop adjustment according to the target position, so that the user can feel the cogging torque in the process of rotating the knob 111, that is, the pulsator operational sense.

It should be noted that in practical applications, the wave wheel operation sense can be applied to select the corresponding menu option through the knob part, and different menu options correspond to different functions, such as selecting different shooting modes, or selecting different photo brightness levels .

In some embodiments, if the operation feeling to be simulated is a rebound operation feeling, the corresponding motor control strategy III is: control the motor 12 to run in a position closed loop, and input the zero position as the target position to the position closed loop, so that the motor 12 According to the target position, the closed-loop adjustment of the position is performed, and then the feedback of the rebound operation feeling is provided; the zero position is the middle position of the parameter adjustment range.

For the sense of rebound operation, the operating components include a rebound component, which is connected to the rotating part 121 of the motor 12, specifically, it can be connected through a mechanical coupling, and the mechanical coupling connection can be a connection structure for realizing swing, for example, Crank Mechanism. Wherein, when the resilience component is operated, the main control circuit controls the motor to run to simulate the rebound operation feeling and feeds back to the resilience component.

Exemplarily, the resilient component may be, for example, a rocker. Most of the rebounding operation feeling of the existing rocker is realized by the spring, and the elastic force of the spring will gradually become weaker as the use time increases, thereby affecting the rebounding operation feeling.

The parameter adjustment range can be the range that the joystick can reach in a certain direction, such as the position that the joystick can reach left and right in the horizontal direction, or the range that the joystick can reach up and down in the vertical direction.

In some embodiments, in order to make the simulated rebound operation feel more realistic and improve the user experience, when providing feedback on the rebound operation feeling, it is defined that the angular position information is positively correlated with the output torque of the motor, And the output torque is not greater than a preset threshold. That is, the greater the angle position information deviates from the middle position, the greater the output torque of the corresponding motor, and the stronger the corresponding rebound operation feeling, so a more realistic rebound operation feeling can be simulated. However, the sense of rebound operation cannot always be enhanced with the increase of the angular position information, so the output torque can be limited to not greater than the preset threshold, that is, when the angular position information of the rotating part of the motor reaches the angle _S0 , the output torque is A ₀ , the output torque does not increase.

In the embodiment of the present application, obtaining the angular position information of the rotating part 121 of the motor 12 may be obtained by using a position sensor, or obtained by software calculation without using a position sensor.

Exemplarily, as shown in FIG. 8 , the remote controller 10 further includes a position sensor 17 for detecting angular position information of the rotating part of the motor 12 and sending the angular position information to the main control circuit 14 . Wherein, the position sensor 17 includes at least one of a magnetic ring Hall sensor, a photoelectric encoder, and a magnetic encoder.

In the embodiment of the present application, a magnetic ring position Hall sensor is used, specifically as shown in FIG. The ring 16 detects angular position information of the rotating portion of the motor 12 . Wherein, the Hall sensor may be a single-axis Hall sensor or a three-axis Hall sensor, and the number of the Hall sensors is not limited, and may be one or more.

Exemplarily, the angle position information can be obtained by software calculation. The main control circuit 14 can specifically obtain the current and voltage of the motor 12 when it is working, and calculate the angle position information of the rotating part of the motor 12 according to the current and voltage.

In some embodiments, in order to facilitate the user's operation and quickly determine the simulated operating feeling, and to improve the user's experience. Exemplarily, as shown in FIG. 9 , the remote controller 10 also includes a parameter setting unit 18, which is configured to communicate with the main control circuit 14, so as to obtain the parameters set by the user and send them to the main control circuit 14, wherein, The parameters include at least one type of operation feeling or one type of follow-focus mode.

After the main control circuit 14 receives the parameter set by the user, it determines the operation feeling that needs to be simulated according to a type of operation feeling included in the parameter; focus mode.

In some embodiments, as shown in FIG. 10 and FIG. 11 , the parameter setting unit 18 includes a terminal device 181 and a display screen 182, and the display screen 182 is a touch screen; wherein, the display screen 182 is connected with the main control circuit 14 to realize communication connection, alternatively, the main control circuit 14 includes a wireless communication module, and the main control circuit 14 establishes a wireless communication connection with the terminal device 181 through the wireless communication module. Furthermore, parameters can be set through the terminal device 181 or the display screen 182, such as setting the type of operation feeling to be simulated or the magnitude of resistance, or the selection of the focus mode.

Wherein, the magnitude of the resistance is used to adjust the strength of the sense of operation, and the magnitude of the resistance is linearly related to the current of the coil 122 of the motor 12, that is, the greater the resistance is set, the greater the current of the coil 122 of the motor 12, so the damping operation The stronger the feeling, the more convenient it is for users to set their own sense of operation. This can meet the different requirements of different users for the operation feeling. By adjusting the resistance, the strength of the operation feeling can be adjusted, and then different users may have different requirements for the operation feeling when adjusting the focus device.

Wherein, the wireless communication module is, for example, a Bluetooth module, a WiFi module, or a Zigbee module, and the terminal device is, for example, a mobile phone, a tablet computer, a notebook computer, a desktop computer, or a wearable electronic device. The display screen is a touch display, including LED, LCD or OLED displays.

The parameters set by the user through the terminal device 181 or the display screen 182 include different types of operation senses, such as damping operation sense, pulsator operation sense or rebound operation feeling, or different types of focus modes, such as manual focus mode, automatic focus mode, etc. Follow focus mode or follow focus combined mode. Correspondingly, the main control circuit 14 is configured to: obtain the operation sense or focus mode selected by the user from the different types of operation senses displayed on the terminal device 181 or the display screen 182 , so as to determine the operation sense or target focus mode that needs to be simulated.

It should be noted that, besides the terminal device 181 or the display screen 182, the parameter setting unit 18 may also be a physical button. For example, a plurality of different buttons are set to represent different focus modes, and when the user presses different buttons, different types of focus modes can be selected; or, a button is set, which includes multiple different operation modes, respectively Indicates different types of focus modes.

In addition, an embodiment of the present application also provides a follow focus system, the follow focus system includes: a fixed device and a follow focus device, the follow focus device may be the follow focus device described in any one of the above, the fix device Equipped with shooting equipment. Wherein, the focus-following device can be set on the fixed device, or can be set independently from the fixed device, and the focus-following device can implement the method for controlling the shooting device described in any one of the embodiments of the present application. Among them, the automatic focus can be realized by driving the lens movement through the motor inside the shooting device.

In some embodiments, the fixed device includes a camera bracket, an airborne gimbal or a handheld gimbal, and the like.

Exemplarily, as shown in FIG. 1 , if the follow-focus device 100 only includes the remote controller 10 , the follow-focus device 100 is set independently of the fixed device.

In some embodiments, the follow-focus system may further include a photographing device, and the photographing device may also be fixed to a fixed device. Wherein, the follow focus motor and the shooting equipment in the follow focus equipment can also be detachably connected with the fixed equipment.

It should be noted that, in the embodiments of the present application, the follow focus device may or may not include a follow focus motor, for example, the follow focus device includes a remote controller and a follow focus motor, or the follow focus device only Including the remote control, both can realize the control of the shooting equipment.

Wherein, the focusing device and the photographing device can be directly or indirectly connected by communication. Of course, when the follow focus motor is used to implement the focus operation, there may be no communication connection.

In some embodiments, if the fixed device is a handheld pan/tilt, the focus device can be set on the handheld pan/tilt, for example, on the handle of the handheld pan/tilt, and the handle of the handheld pan/tilt can be detachably set On the handle of the handheld pan/tilt, it can also be integrated with the handle of the handheld pan/tilt.

Hereinafter, based on the focus-focusing device provided in the foregoing embodiments, the method for controlling the photographing device provided in the embodiments of the present application will be introduced.

Please refer to FIG. 12. FIG. 12 shows the flow of steps of a method for controlling a shooting device provided by the present application. shooting experience.

Wherein, the focus-following device includes a motor and an operating part, the operating part is used for user operation to input a focus control signal, and the operating part is mechanically coupled with the rotating part of the motor.

As shown in FIG. 12 , the method for controlling the shooting device includes steps S101 to S103.

S101. Obtain a focus control signal input by a user based on a focus device;

S102. According to the focus control signal, control the shooting device according to the manual focus mode to shoot;

S103. When the manual focus mode ends, control the shooting device according to the automatic focus mode to shoot.

For example, when the user operates the operating parts of the focus device, a focus control signal is generated, the focus control signal is obtained, and the shooting device is controlled to shoot in the manual focus mode according to the focus control signal, and the manual focus mode ends At the same time, the shooting device is controlled according to the automatic focus mode to take pictures, thereby realizing the control of the shooting device according to the follow-focus combination mode to perform follow-focus shooting.

Specifically, it may be determined that the manual focus mode ends according to the user's operation on the operation part of the focus device. Wherein, according to the user's operation on the operation part of the focus device, for example, in the manual focus mode, the user stops operating the operation part of the focus device, or the user releases the operation part of the focus device, which can be determined as The manual focus mode ends.

Since the operating part is mechanically coupled with the rotating part of the motor of the focus device, when the user operates the operating part, such as turning or stopping the rotating part, the motor will receive the torque that the user acts on the operating part, thereby detecting that the user After operating the operating member, stop operating the operating member or release the operating member, etc.

In some embodiments, the follow focus motor can be used to drive the lens of the shooting device to rotate, so that the shooting device adopts manual focus mode or automatic focus mode for shooting; wherein, the shooting device adopts automatic focus mode for shooting When , the motor of the follow focus motor communicates with the distance measuring device, and the distance measuring device is used to measure the distance from the shooting target to the shooting equipment, and the distance measured by the distance measuring device is used to perform automatic focus.

In some embodiments, the shooting device is controlled to take pictures according to the automatic focus mode. Specifically, an automatic focus instruction can also be sent to the shooting device, so that the shooting device drives its internal lens to move according to the automatic focus instruction and according to the captured image Realize automatic focus.

Exemplarily, for example, the focus lens in the shooting device and the motor driving the focus lens can determine the movement of the focus lens through the motor according to the auto-follow-focus instruction to achieve focus on the shooting target, and realize auto-follow-focus according to the captured image.

For example, with a camera that uses contrast focusing, when aiming at the subject, the motor in the lens module will drive the lens to move from the bottom (close to the image sensor) to the top. During this process, the image sensor will monitor the entire scene range Carry out comprehensive detection in the depth direction, and continuously record contrast values such as contrast, and then find out the maximum contrast position, and the lens that moves to the top will return to this position to complete the final focus, that is, automatic focus is realized. Of course, other principles can also be used to realize automatic focus, which is not limited here.

In some embodiments, when the shooting device is controlled to shoot in the manual focus mode or the automatic focus mode, the target parameters of the target closed loop can also be obtained, and the motor of the focus device is controlled to run according to the target closed loop according to the target parameters.

For example, the target closed-loop includes the position closed-loop, and correspondingly, the target parameters include the target position for the closed-loop adjustment of the position closed-loop. Wherein, the motor is controlled to run according to the target closed-loop according to the target parameters. Specifically, the target position can be input into the position closed-loop as the adjustment target, and the motor of the focus device is controlled to run according to the position closed-loop.

For example, the target closed loop includes a speed closed loop, and correspondingly, the target parameter includes a target speed for closed-loop adjustment by the speed closed loop. Wherein, the motor is controlled to run according to the target closed-loop according to the target parameter, specifically, the motor of the focus device may be controlled to run according to the closed-loop speed according to the target speed, and the target speed is zero.

For another example, the target closed-loop includes a position closed-loop and a speed closed-loop. Correspondingly, the target parameter includes a target position for closed-loop adjustment by the position closed-loop and a target speed for closed-loop adjustment by the speed closed-loop. Wherein, the motor is controlled according to the target parameter to run according to the target closed loop. Specifically, the motor of the focus device can be controlled according to the target position and target speed to simultaneously run according to the position closed loop and the speed closed loop, and the target speed is zero.

In the actual application scenario, the user controls the shooting device to shoot in the manual focus mode by operating the operating parts of the focus device. The parts will continue to rotate following the target position corresponding to the target focus information of the automatic focus mode, so the extension from the manual focus mode to the automatic focus mode can be realized without switching.

At the same time, due to the existence of the speed closed loop, it will be damped to a certain extent when it rotates following the target position, so the rotation is relatively smooth. When the user rotates the operating part of the focus device to deviate from the target focus information in the automatic focus mode, due to the position closed-loop output adjustment, the motor of the focus device will give the human hand a moment to move in the direction of the target focus information. , due to the output of the closed-loop speed, the human hand will feel the damping operation feeling when focusing manually.

In some embodiments, when the shooting device is controlled to take pictures according to the automatic focus mode, the distance from the shooting target to the shooting device measured by the distance measuring device can also be obtained, and the target focus information can be determined according to the distance from the shooting target to the shooting device; And determine the target position according to the target focus information.

Wherein, the target focus information is the focus corresponding to the shooting device at the distance, and the focus can form a clear image of the shooting target at the distance. The target position is the position where the motor of the focus-following device is driven to rotate, and the position of the motor of the focus-following device can make the shooting device correspond to the focal point, thereby forming a clear image of the shooting target at the distance.

In some other embodiments, when the shooting device is controlled to shoot according to the automatic focus mode, the target position is determined, specifically, the target focus information determined by the shooting device may also be obtained, and the target position is determined according to the target focus information determined by the shooting device .

Wherein, the target focus information determined by the shooting device may specifically be determined according to the captured image, for example, the target focus information is determined by using the contrast principle.

In some embodiments, when the shooting device is controlled to take pictures according to the manual focus mode, the real-time position of the operating part of the focus device can also be obtained when the user operates the operation part of the focus device. The output torque of the motor of the focus device is determined according to the real-time position and the target position. For example, when the difference between the real-time position and the target position is large, the output torque is relatively large, so that the user can perceive the adjustment of the focus position.

It should be noted that when the motor controlling the focus device operates according to the position closed loop and the speed closed loop, the output torque of the motor of the follow focus device is jointly determined by the position close loop and the speed close loop. This not only provides a sense of damping operation, but also ensures the smooth progress of automatic focus, thereby improving the stability of focus and improving the quality of video shooting.

In some embodiments, the first adjustment coefficient corresponding to the position closed loop and the second adjustment coefficient corresponding to the speed closed loop can also be obtained; according to the first adjustment coefficient, the second adjustment coefficient and the output of the position closed loop and the output of the speed closed loop, determine The output torque of the motor of the focus device. By setting the first adjustment coefficient and the second adjustment coefficient, the damping of the rotation process can be set, so that the automatic focus process in the follow-focus combination mode can be made smoother and more stable, and the damping can also be adjusted, thereby improving the operation experience.

Specifically, the expression of the output torque of the motor of the focus device is as follows:

T∝a ₁ *S ₁ +a ₂ *S ₂

Among them, T represents the output torque of the motor of the focus device, a ₁ represents the first adjustment coefficient, a ₂ represents the second adjustment coefficient, S ₁ represents the output of the position closed loop, and S ₂ represents the output of the speed closed loop. Since the output torque is proportional to the output of the position closed loop and the speed closed loop, the output torque can be adjusted through the first adjustment coefficient and the second adjustment coefficient, thereby improving the user's operating experience.

Of course, in the embodiment of the present application, the damping operation feeling can also be provided by the damping grease provided on the operating part of the focus device. It should be noted that by simulating different operating sensations through the motor, it is not affected by environmental factors, thereby improving user experience.

In some embodiments, in order to improve the user's operating experience, it is also possible to obtain the actual focus information of the shooting device, control the motor of the focus device to rotate to the position corresponding to the actual focus information, and make the motor in the focus device drive the operation The part rotates. In this way, the user can more intuitively experience the state changes of the focus during the focus process, such as the focus speed, the direction of the focus, etc., thereby improving the photographer's experience.

For example, as shown in Figure 1, in the combined focus mode or automatic focus mode, the motor of the focus device can be controlled in real time to rotate to the position corresponding to the actual focus information, and the motor in the focus device can drive the apron to rotate. Thus, according to the rotation of the apron, the user can more intuitively feel that the automatic focus mode is used to continue shooting when the manual focus mode stops.

In some embodiments, target focus information and actual focus information of the photographing device may also be acquired, and displayed for the user to observe. Specifically, the display target focus information and the actual focus information may be displayed through the terminal device 181 or the display screen 182 .

In some embodiments, target focus information and actual focus information are displayed. Specifically, a focus display interface may be displayed. By displaying target focus information and actual focus information on the focus display interface, the focus display interface includes a position coordinate axis and a position coordinate axis. The first indicator icon and the second indicator icon on the axis, the first indicator icon is used to indicate the target focus information, the second indicator icon is used to indicate the actual focus information, the first indicator icon and the second indicator icon on the position coordinate axis The separation distance represents the gap between the target focus information and the actual focus information, as shown in FIG. 13 .

Of course, the target focus information and the specific position corresponding to the actual focus information can also be displayed. The position is the rotation position of the motor of the focus device, specifically the rotation angle information, such as the actual position and the target position as shown in FIG. 13 .

In some embodiments, it may also be determined whether the follow-focus device enters the follow-focus combination mode, and when it is determined to enter the follow-focus combination mode, step S102 is performed. It is determined to enter the follow-focus combination mode, and it is specifically up to the user to choose whether to use this mode, thereby improving user experience.

Specifically, the selection instruction of the focus mode can be obtained, and the focus mode includes the focus combination mode, the automatic focus mode and the manual focus mode; according to the selection instruction, the target follow focus mode is selected in the focus mode, so as to The shooting device is made to use the target follow-focus mode to shoot. For example, if the user selects the combination of focus and focus mode, the combination of focus and focus mode is used to control the shooting device to perform focus shooting.

The shooting device control method provided by the above embodiment can not only control the shooting device in manual focus mode, but also control the shooting device in automatic focus mode, and realize the organic combination of manual focus mode and automatic focus mode The new follow focus mode, which enables the shooting device to automatically adopt the automatic follow focus mode to shoot when the user stops using the manual follow focus mode, thereby improving the user's shooting experience, due to the combination of manual follow focus mode and automatic follow focus The advantages of the mode, which in turn can improve the quality of shooting.

Please refer to Fig. 14, Fig. 14 is a schematic flowchart of another control method of a photographing device provided in an embodiment of the present application, and the control method can be applied to any one of the follow-focus devices provided in the embodiments of the present application, To improve the user's shooting experience.

As shown in FIG. 14 , the method for controlling the shooting device includes step S201 and step S202.

S201. Obtain the target parameters of the target closed-loop corresponding to the motor of the focus device;

S202. Control the motor of the focus-focusing device according to the target parameter to run in a closed-loop manner according to the target, so as to control the shooting device to shoot in a combined focus-following mode.

Wherein, the follow-focus combination mode is: the automatic follow-focus mode is automatically adopted when the manual follow-focus mode is stopped, or the follow-focus mode is allowed to execute the manual follow-focus mode during the execution of the automatic follow-focus mode.

Wherein, the target closed loop may include a position closed loop, or include a position closed loop and a velocity closed loop. Correspondingly, the target parameters include a target position, a target position and a target speed.

In some embodiments, it may be determined that the manual focus mode ends according to the user's operation on the operation part of the focus device. Wherein, the user's operation on the operation part of the focus-following device is, for example, that the user stops operating the operation part of the focus-following device; or, the user releases the operation part of the focus-following device.

In some embodiments, the output torque of the motor of the focus-following device is jointly determined by a position closed loop and a speed closed loop.

In some embodiments, the first adjustment coefficient corresponding to the position closed loop and the second adjustment coefficient corresponding to the speed closed loop are acquired; according to the first adjustment coefficient, the second adjustment coefficient, the output of the position closed loop, and the output of the speed closed loop, determine the following The output torque of the motor of the coke equipment.

In some embodiments, the shooting device is controlled to take pictures according to the automatic focus mode. Specifically, an automatic focus instruction may be sent to the shooting device, so that the shooting device drives its internal lens to move according to the automatic focus instruction and realizes Auto focus.

In some embodiments, the actual focus information of the photographing device can also be obtained, the motor of the focus-following device is controlled to rotate to a position corresponding to the actual focus information, and the motor in the focus-following device drives the operation part to rotate.

In some embodiments, the actual focus information and the target focus information of the photographing device may also be obtained, and the target focus information and the actual focus information may be displayed. The specific display manner may refer to the above-mentioned embodiments, which will not be described in detail here.

In some embodiments, it may also be determined to enter the follow-focus combination mode, wherein the follow-focus combination mode is to automatically adopt the automatic follow-focus mode when the manual follow-focus mode stops, or the execution of the automatic follow-focus mode The follow focus mode of the manual follow focus mode is allowed to be executed during the process. It is determined to enter the follow-focus combination mode, which can be determined according to the user's selection command, and will not be described in detail here.

This embodiment provides a brand-new follow-focus mode, specifically a follow-focus combination mode, which enables the shooting device to automatically adopt the automatic follow-focus mode to shoot when the user stops using the manual follow-focus mode, thereby utilizing the automatic follow-focus mode and the manual focus mode. The advantages of the follow focus mode further improve the user's shooting experience.

Please refer to Fig. 15, Fig. 15 is a schematic flowchart of another control method of a photographing device provided in an embodiment of the present application, which can be applied to any one of the follow-focus devices provided in the embodiments of the present application, To improve the user's shooting experience.

As shown in FIG. 15 , the method for controlling the shooting device includes step S301 and step S302.

S301. When controlling the shooting device to shoot according to the manual focus mode, acquire the target parameters of the target closed-loop corresponding to the motor of the focus device;

S302. Control the motor of the focus-following device to run in a closed-loop according to the target according to the target parameter.

When the shooting device is controlled to shoot according to the manual focus mode, the target parameters of the motor corresponding to the target closed loop of the focus device are obtained, so that when the manual focus mode ends, the camera can be controlled according to the automatic focus mode The above-mentioned shooting equipment is used for shooting.

In some embodiments, the output torque of the motor of the focus-following device is jointly determined by the closed-loop position and the closed-loop speed.

The method for controlling the photographing device provided by this embodiment realizes that during the manual focus process, for example, the user releases the manual focus component, the photographing device can be controlled to shoot in the automatic focus mode, thereby realizing the manual focus mode The organic combination with the automatic focus mode improves the user's shooting experience.

Please refer to Fig. 16, Fig. 16 is a schematic flowchart of another method for controlling a photographing device provided in an embodiment of the present application, and the control method can be applied to any one of the follow-focus devices provided in the embodiments of the present application, To improve the user's shooting experience.

As shown in FIG. 16 , the method for controlling the shooting device includes step S401 and step S402.

S401. Obtain in real time the actual focus information when the shooting device adopts the automatic focus mode to shoot;

S402. Control the motor in the focus device to rotate to a position corresponding to the actual focus information.

Since the operating part is mechanically coupled with the rotating part of the motor, controlling the motor in the focus device to rotate to the position corresponding to the actual focus information will drive the operating part to rotate to the position corresponding to the actual focus information, thereby allowing users to feel more intuitively to the process of auto focus. The user can experience the focusing speed, the direction of the focus, etc. more intuitively, thereby improving the photographer's experience.

Among them, the automatic focus mode can be that the shooting device drives its internal lens to move according to the automatic focus instruction and realizes automatic focus according to the captured image, or it can be that the follow focus motor drives the lens of the shooting device to rotate according to the distance of the shooting target. The shooting device is made to adopt the automatic focus mode for shooting.

It should be noted that the method for controlling a photographing device provided in this embodiment may also include a manual follow-focus mode/or a follow-focus combined mode. For example, the manual focus mode can be used to control the shooting device to perform follow-focus shooting. When the manual focus mode is switched to the automatic focus mode, the actual focus information of the shooting device when shooting in the automatic focus mode can be obtained in real time, and the focus information can be controlled in the follow-focus device. The motor rotates to the position corresponding to the actual focus information.

In some embodiments, the real-time acquisition of the automatic focus in the actual focus information when the shooting device uses the automatic focus mode for shooting may be that the automatic follow-focus mode is automatically adopted when the manual follow-focus mode in the follow-focus combination mode stops.

In some embodiments, target parameters of the target closed-loop can also be obtained, and the motor of the focus-following device is controlled to operate according to the target closed-loop according to the target parameters.

In some embodiments, the actual focus information of the photographing device may also be acquired and displayed, and the specific display manner may refer to the above-mentioned embodiments, which will not be described in detail here.

The method for controlling the photographing device provided in this embodiment can enable the user to intuitively experience the process of auto-focusing through the operating components, thereby improving the experience of the user.

It should be noted that, the control method of the photographing device shown in Fig. 14 to Fig. 16 can refer to the above-mentioned embodiments to provide the follow-focus device and the control method of the photographic device shown in Fig. 12, such as automatic follow-focus mode, manual follow-focus mode, etc. mode, follow-focus combination mode, the way to determine the end of manual follow-focus mode, and the control method of target closed-loop, etc., will not be introduced in detail here.

Please refer to FIG. 17 . FIG. 17 is a schematic block diagram of a control device provided by an embodiment of the present application. As shown in FIG. 17 , the control device 500 further includes one or more processors 501 and memory 502 .

The processor 501 may be, for example, a micro-controller unit (Micro-controller Unit, MCU), a central processing unit (Central Processing Unit, CPU), or a digital signal processor (Digital Signal Processor, DSP), etc.

The memory 502 can be a Flash chip, a read-only memory (ROM, Read-Only Memory) disk, an optical disk, a U disk, or a mobile hard disk.

Wherein, the memory 502 is used to store a computer program; the processor 501 is used to execute the computer program, and when executing the computer program, execute the method for controlling the photographing device as described in any one of the above items.

Exemplarily, the processor is configured to run a computer program stored in the memory, and implement the following steps when executing the computer program:

Obtaining a follow focus control signal input by a user based on a focus focus device, wherein the focus focus device includes a motor and an operation part, the operation part is used for the user to operate to input the focus focus control signal, and the operation part is connected to the focus control signal The rotating part of the motor is mechanically coupled; according to the focus control signal, the shooting device is controlled according to the manual focus mode to shoot; when the manual focus mode ends, the shooting device is controlled according to the automatic focus mode shoot.

Obtain the target parameters of the target closed-loop corresponding to the motor of the focus-following device, wherein the focus-following device includes a motor and an operating part, and the operating part is used for the user to operate and input the follow-focus for controlling the shooting device to follow the focus Control signal, the operating part is mechanically coupled with the rotating part of the motor; according to the target parameters, the motor of the follow focus device is controlled to run in a closed loop according to the target, so as to control the shooting device to use the focus combined mode to shoot; wherein , the follow-focus combination mode is: the automatic follow-focus mode is automatically adopted when the manual follow-focus mode stops, or the follow-focus mode in which the manual follow-focus mode is allowed to be executed during the execution of the automatic follow-focus mode.

When the shooting device is controlled to shoot according to the manual focus mode, the target parameters corresponding to the target closed-loop of the motor of the focus device are obtained, and the focus device also includes an operation part, and the operation part is used for user operation and input In order to control the focus control signal of the shooting device to focus, the operating part is mechanically coupled with the rotating part of the motor; according to the target parameter, the motor of the focus device is controlled to run in a closed loop according to the target, so as to It is realized that when the manual focus mode ends, the photographing device can be controlled to shoot according to the automatic focus mode.

Acquire in real time the actual focus information when the shooting device adopts the automatic focus mode for shooting; control the motor in the focus device to rotate to a position corresponding to the actual focus information, wherein the focus device includes a motor and an operating component, The operating part is used for user operation to input a focus control signal for controlling the photographing device to focus, and the operating part is mechanically coupled with the rotating part of the motor.

In some embodiments, the processor is also used to implement:

According to the user's operation on the operation part of the focus follow device, it is determined that the manual focus focus mode ends.

In some embodiments, the user's operations on the operating components of the focus-following device include:

The user stops operating the operating part of the focus-following device; or, the user releases the operating part of the focus-following device.

In some embodiments, the controlling the shooting device to shoot includes:

Obtain target parameters of the target closed-loop; control the motor of the focus-following device to run according to the target closed-loop according to the target parameters.

In some embodiments, the target closed loop includes a position closed loop, and the target parameter includes a target position for closed-loop adjustment of the position closed loop;

The controlling the motor according to the target parameters to operate in a closed-loop manner according to the target includes:

The target position is input into the position closed loop as an adjustment target; the motor controlling the follow focus device operates according to the position closed loop.

In some embodiments, when controlling the shooting device to shoot according to the automatic focus mode, the processor is further configured to:

Obtaining the distance from the shooting target to the shooting device measured by the distance measuring device; determining target focus information according to the distance from the shooting target to the shooting device; and determining the target position according to the target focus information.

acquiring target focus information determined by the photographing device; and determining the target position according to the target focus information.

In some embodiments, when controlling the shooting device to shoot according to the manual focus mode, the processor is further configured to:

When the user operates the operating part of the focus-following device, the real-time position of the operating part of the focus-following device is obtained; and the target position is determined according to the real-time position.

In some embodiments, the target closed loop further includes a speed closed loop, and the target parameter includes a target speed for closed-loop adjustment by the speed closed loop;

The controlling the motor to operate in a closed-loop manner according to the target parameter further includes:

The motor of the focus-following device is controlled to run in a closed loop at the speed according to the target speed, and the target speed is zero.

In some embodiments, the processor is also used to implement:

Obtain the first adjustment coefficient corresponding to the position closed loop and the second adjustment coefficient corresponding to the speed closed loop; according to the first adjustment coefficient, the second adjustment coefficient, the output of the position closed loop, the output of the speed closed loop The amount determines the output torque of the motor of the focus device.

In some embodiments, the operating part of the follow focus device is provided with damping grease.

In some embodiments, the lens of the photographing device is coupled to a follow focus motor, and the follow focus motor is communicatively connected to the follow focus device;

The follow focus motor is used to drive the lens of the photographing device to rotate, so that the photographing device adopts the manual follow focus mode or the automatic follow focus mode for photographing; wherein, the photographing device adopts the When shooting in the automatic focus mode, the follow focus motor communicates with a distance measuring device, and the distance measuring device is used to measure the distance from the shooting target to the shooting device.

In some embodiments, the controlling the shooting device to shoot according to the automatic focus mode includes:

An automatic focus instruction is sent to the photographing device, so that the photographic device drives its internal lens to move according to the automatic focus instruction and realizes automatic focus according to the captured image.

In some embodiments, the processor is also used to implement:

Acquiring the actual focus information of the photographing device; controlling the motor of the focus-following device to rotate to a position corresponding to the actual focus information, and making the motor in the focus-following device drive the operating component to rotate.

In some embodiments, the processor is also used to implement:

Acquiring target focus information and actual focus information of the photographing device; and controlling a display device to display the target focus information and the actual focus information, wherein the display device is communicatively connected to the focus-following device.

In some embodiments, the displaying the target focus information and the actual focus information includes:

displaying a focus display interface; and displaying the target focus information and the actual focus information on the focus display interface.

In some embodiments, the focus display interface includes a position coordinate axis and a first indicator icon and a second indicator icon on the position coordinate axis;

Wherein, the first indicator icon is used to indicate the target focus information, the second indicator icon is used to indicate the actual focus information, and the first indicator icon and the second indicator icon are at the position coordinates The separation distance on the axis represents the gap between the target focus information and the actual focus information.

In some embodiments, at the end of the manual focus mode, before controlling the shooting device to shoot according to the automatic focus mode, the processor is further configured to:

It is determined to enter the follow-focus combination mode, wherein the follow-focus combination mode is that the automatic follow-focus mode is automatically adopted when the manual follow-focus mode stops, or the manual follow-up mode is allowed to be executed during the execution of the automatic follow-focus mode Follow focus mode of focus mode.

In some embodiments, the processor is also used to implement:

Acquire a selection instruction of a focus mode, the focus mode includes the focus combination mode, the automatic focus mode, and the manual focus mode; select a target follow focus mode in the focus focus mode according to the selection instruction focus mode, so that the photographing device adopts the target follow-focus mode for photographing.

In some embodiments, the lens of the photographing device is coupled to a follow focus motor, the photographing device and the follow focus motor are both arranged on a fixed device, and the follow focus motor communicates with the follow focus device connect.

In some embodiments, the fixed device includes a camera mount, an airborne gimbal, or a handheld gimbal.

The control device in the embodiment of the present application has beneficial technical effects similar to those of the control methods of the photographing equipment in the above embodiments, so details will not be repeated here.

Wherein, the above-mentioned control device may be integrated into the focus-focusing device; or integrated into a fixed device, communicate with the focus-focus device and be able to control the focus-focus device; or be an independent electronic device, communicate with the focus-focus device and be able to Control the focus device, the specific form is not specifically limited here.

Embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program includes program instructions, and the processor executes the program instructions to implement the above implementation The steps of any one of the methods for controlling the shooting device provided by the example.

Wherein, the computer-readable storage medium may be an internal storage unit of the focus-following device described in any of the foregoing embodiments, such as a memory or a memory of the focus-following device. The computer-readable storage medium can also be an external storage device of the focus device, such as a plug-in hard disk equipped on the focus device, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital , SD) card, flash memory card (Flash Card), etc.

The above is only a specific embodiment of the application, but the scope of protection of the application is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the scope of the technology disclosed in the application. Modifications or replacements, these modifications or replacements shall be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method for controlling a photographing device, characterized in that the method comprises:

Obtaining a follow focus control signal input by a user based on a focus focus device, wherein the focus focus device includes a motor and an operation part, the operation part is used for the user to operate to input the focus focus control signal, and the operation part is connected to the focus control signal The rotating part of the motor is mechanically coupled;

According to the follow focus control signal, control the shooting device to take pictures according to the manual follow focus mode;

When the manual focus mode ends, the photographing device is controlled according to the automatic focus mode to shoot.
The method according to claim 1, further comprising:

According to the user's operation on the operation part of the focus follow device, it is determined that the manual focus focus mode ends.
The method according to claim 2, characterized in that the user's operation on the operating components of the focus-following device includes:

the user ceases to operate an operating part of said focus-focusing device; or,

The user releases the operating part of the follow focus device.
The method according to claim 1, wherein the controlling the photographing device to photograph comprises:

Obtain the target parameters of the target closed loop;

The motor of the focus-following device is controlled according to the target parameter to operate in a closed-loop manner according to the target.
The method according to claim 4, wherein the target closed loop includes a position closed loop, and the target parameter includes a target position for closed-loop adjustment of the position closed loop;

The controlling the motor according to the target parameters to operate in a closed-loop manner according to the target includes:

inputting the target position into the closed position loop as an adjustment target;

The motor controlling the focus focus device operates in a closed loop according to the position.
The method according to claim 5, wherein when controlling the shooting device to shoot according to the automatic focus mode, the method further comprises:

Acquiring the distance from the shooting target to the shooting device measured by the distance measuring device;

determining target focus information according to the distance from the shooting target to the shooting device; and

The target position is determined according to the target focus information.
The method according to claim 5, wherein when controlling the shooting device to shoot according to the automatic focus mode, the method further comprises:

acquiring target focus information determined by the photographing device; and

The target position is determined according to the target focus information.
The method according to claim 5, wherein when controlling the shooting device to shoot according to the manual focus mode, the method further comprises:

When the user operates the operating part of the focus-following device, the real-time position of the operating part of the focus-following device is acquired.
The method according to claim 5, wherein the target closed loop further includes a speed closed loop, and the target parameter includes a target speed for closed-loop adjustment of the speed closed loop;

The controlling the motor to operate in a closed-loop manner according to the target parameter further includes:

The motor of the focus-following device is controlled to run in a closed loop at the speed according to the target speed, and the target speed is zero.
The method according to claim 9, characterized in that the output torque of the motor of the focus-following device is jointly determined by the closed-loop position and the closed-loop speed.
The method according to claim 10, characterized in that the method comprises:

Acquiring a first adjustment coefficient corresponding to the position closed loop and a second adjustment coefficient corresponding to the speed closed loop;

The output torque of the motor of the focus focus device is determined according to the first adjustment coefficient, the second adjustment coefficient, the output of the position closed loop, and the output of the speed closed loop.
The method according to claim 1, characterized in that the operating part of the follow focus device is provided with damping grease.
The method according to any one of claims 1-12, wherein the lens of the photographing device is coupled to a follow focus motor, and the follow focus motor is communicatively connected to the follow focus device;

The follow focus motor is used to drive the lens of the photographing device to rotate, so that the photographing device adopts the manual follow focus mode or the automatic follow focus mode to take pictures;

Wherein, when the photographing device adopts the automatic focus mode for photographing, the follow focus motor is communicatively connected with a distance measuring device, and the distance measuring device is used to measure the distance from the photographing target to the photographing device.
The method according to any one of claims 1-12, wherein the controlling the shooting device to shoot according to the automatic focus mode includes:

An automatic focus instruction is sent to the photographing device, so that the photographic device drives its internal lens to move according to the automatic focus instruction and realizes automatic focus according to the captured image.
The method according to any one of claims 1-12, characterized in that the method comprises:

Acquiring actual focus information of the shooting device;

Control the motor of the focus-following device to rotate to a position corresponding to the actual focus information, and make the motor in the focus-follow device drive the operating component to rotate.
The method according to any one of claims 1-12, characterized in that the method comprises:

acquiring target focus information and actual focus information of the photographing device; and

The target focus information and the actual focus information are displayed.
The method according to claim 16, wherein the displaying the target focus information and the actual focus information comprises:

display the focus display interface; and

The target focus information and the actual focus information are displayed on the focus display interface.
The method according to claim 17, wherein the focus display interface includes a position coordinate axis and a first indicator icon and a second indicator icon on the position coordinate axis;

Wherein, the first indicator icon is used to indicate the target focus information, the second indicator icon is used to indicate the actual focus information, and the first indicator icon and the second indicator icon are at the position coordinates The separation distance on the axis represents the gap between the target focus information and the actual focus information.
The method according to any one of claims 1-12, wherein at the end of the manual focus mode, before controlling the shooting device to take pictures according to the automatic focus mode, the method further comprises:

It is determined to enter the follow-focus combination mode, wherein the follow-focus combination mode is that the automatic follow-focus mode is automatically adopted when the manual follow-focus mode stops, or the manual follow-up mode is allowed to be executed during the execution of the automatic follow-focus mode Follow focus mode of focus mode.
The method according to claim 19, further comprising:

Acquiring a selection instruction of a focus mode, where the focus mode includes the combined focus mode, the automatic focus mode, and the manual focus mode;

A target follow-focus mode is selected in the focus-focus modes according to the selection instruction, so that the photographing device adopts the focus-focus mode of the target for shooting.
A method for controlling a photographing device, characterized in that the method comprises:

Obtain the target parameters of the target closed-loop corresponding to the motor of the focus-following device, wherein the focus-following device includes a motor and an operating part, and the operating part is used for the user to operate and input the follow-focus for controlling the shooting device to follow the focus a control signal, the operating part is mechanically coupled to the rotating part of the motor;

controlling the motor of the focus-focusing device to operate in a closed-loop target according to the target parameters, so as to control the shooting device to shoot in a combined focus-following mode;

Wherein, the follow-focus combination mode is: the automatic follow-focus mode is automatically adopted when the manual follow-focus mode stops, or the follow-focus mode in which the manual follow-focus mode is allowed to be executed during the execution of the automatic follow-focus mode.
A method for controlling a photographing device, characterized in that the method comprises:

When the shooting device is controlled to shoot according to the manual focus mode, the target parameters corresponding to the target closed-loop of the motor of the focus device are obtained, and the focus device also includes an operation part, and the operation part is used for user operation and input A focus control signal for controlling the shooting device to focus, the operating component is mechanically coupled with the rotating part of the motor;

According to the target parameter, the motor of the focus focus device is controlled to run in a closed loop according to the target, so that when the manual focus focus mode ends, the photographing equipment can be controlled according to the automatic focus focus mode to take pictures.
A method for controlling a photographing device, characterized in that the method comprises:

Acquiring in real time the actual focus information when the shooting device adopts the automatic focus mode to shoot;

controlling the motor in the focus-following device to rotate to a position corresponding to the actual focus information, wherein the focus-following device includes a motor and an operating part, and the operating part is used for user operation and input for controlling the shooting device to perform A follow-focus control signal for focus, the operating component is mechanically coupled with the rotating part of the motor.
A control device, characterized in that the control device includes a memory and a processor;

The memory is used to store computer programs;

The processor is configured to execute the computer program and, when executing the computer program, implement the method for controlling the photographing device according to any one of claims 1-23.
A follow-focus device, characterized in that the follow-focus device includes:

motor;

An operating part is used for inputting a focus control signal for user operation, the operating part is mechanically coupled with the rotating part of the motor, and can drive the rotating part of the motor to rotate together;

a drive circuit, the drive circuit is connected to the motor and is used to drive the motor to rotate;

a main control circuit, the main control circuit is connected to the driving circuit, and the main control circuit includes a memory and a processor;

The memory is used to store computer programs;

The processor is configured to execute the computer program and realize the following operations when executing the computer program:

acquiring the focus control signal input by the user based on the focus device;

According to the follow focus control signal, control the shooting device to take pictures according to the manual follow focus mode;

When the manual focus mode ends, the photographing device is controlled according to the automatic focus mode to shoot.
The focus-following device according to claim 25, wherein the processor is further configured to implement:

According to the user's operation on the operation part of the focus follow device, it is determined that the manual focus focus mode ends.
The focus-following device according to claim 26, wherein the user's operations on the operating components of the focus-following device include:

the user ceases to operate an operating part of said focus-focusing device; or,

The user releases the operating part of the follow focus device.
The follow-focus device according to claim 25, wherein the controlling the shooting device to shoot includes:

Obtain the target parameters of the target closed loop;

The motor of the focus-following device is controlled according to the target parameter to operate in a closed-loop manner according to the target.
The follow-focus device according to claim 28, wherein the target closed loop includes a position closed loop, and the target parameters include a target position for closed-loop adjustment of the position closed loop;

The controlling the motor according to the target parameters to operate in a closed-loop manner according to the target includes:

inputting the target position into the closed position loop as an adjustment target;

The motor controlling the focus focus device operates in a closed loop according to the position.
The follow-focus device according to claim 29, characterized in that, when controlling the shooting device to shoot according to the automatic follow-focus mode, the processor is further configured to realize:

Acquiring the distance from the shooting target to the shooting device measured by the distance measuring device;

determining target focus information according to the distance from the shooting target to the shooting device; and

The target position is determined according to the target focus information.
The follow-focus device according to claim 29, characterized in that, when controlling the shooting device to shoot according to the automatic follow-focus mode, the processor is further configured to realize:

acquiring target focus information determined by the photographing device; and

The target position is determined according to the target focus information.
The follow-focus device according to claim 29, wherein when controlling the shooting device to take pictures according to the manual follow-focus mode, the processor is further configured to realize:

Acquiring the real-time position of the operating part of the focus-following device when the user operates the operating part of the focus-following device;

The target location is determined according to the real-time location.
The focus-following device according to claim 29, wherein the target closed loop further includes a speed closed loop, and the target parameter includes a target speed for closed-loop adjustment by the speed closed loop;

The controlling the motor to operate in a closed-loop manner according to the target parameter further includes:

The motor of the focus-following device is controlled to run in a closed loop at the speed according to the target speed, and the target speed is zero.
The focus-following device according to claim 33, wherein the output torque of the motor of the focus-following device is jointly determined by the position closed loop and the speed closed loop.
The follow-focus device according to claim 34, wherein the processor is further configured to implement:

Acquiring a first adjustment coefficient corresponding to the position closed loop and a second adjustment coefficient corresponding to the speed closed loop;

The output torque of the motor of the focus focus device is determined according to the first adjustment coefficient, the second adjustment coefficient, the output of the position closed loop, and the output of the speed closed loop.
The follow focus device according to claim 25, characterized in that the operating part of the follow focus device is provided with damping grease.
The follow-focus device according to any one of claims 25-36, wherein the lens of the photographing device is coupled to a follow-focus motor, and the follow-focus motor is communicatively connected to the follow-focus device;

The follow focus motor is used to drive the lens of the photographing device to rotate, so that the photographing device adopts the manual follow focus mode or the automatic follow focus mode to take pictures;

Wherein, when the photographing device adopts the automatic focus mode for photographing, the follow focus motor is communicatively connected with a distance measuring device, and the distance measuring device is used to measure the distance from the photographing target to the photographing device.
The follow-focus device according to any one of claims 25-36, characterized in that, controlling the shooting device to take pictures according to the automatic follow-focus mode includes:

An automatic focus instruction is sent to the photographing device, so that the photographic device drives its internal lens to move according to the automatic focus instruction and realizes automatic focus according to the captured image.
The follow-focus device according to any one of claims 25-36, wherein the processor is further configured to implement:

Acquiring actual focus information of the shooting device;

Control the motor of the focus-following device to rotate to a position corresponding to the actual focus information, and make the motor in the focus-follow device drive the operating component to rotate.
The follow-focus device according to any one of claims 25-36, wherein the processor is further configured to implement:

acquiring target focus information and actual focus information of the photographing device; and

controlling the display device to display the target focus information and the actual focus information, wherein the display device is communicatively connected to the focus-following device.
The focus-following device according to claim 40, wherein the displaying the target focus information and the actual focus information comprises:

display the focus display interface; and

The target focus information and the actual focus information are displayed on the focus display interface.
The focus-following device according to claim 41, wherein the focus display interface includes a position coordinate axis and a first indicator icon and a second indicator icon on the position coordinate axis;

Wherein, the first indicator icon is used to indicate the target focus information, the second indicator icon is used to indicate the actual focus information, and the first indicator icon and the second indicator icon are at the position coordinates The separation distance on the axis represents the gap between the target focus information and the actual focus information.
The follow focus device according to any one of claims 25-36, characterized in that, when the manual follow focus mode ends, before controlling the shooting device to take pictures according to the automatic follow focus mode, the processor also uses To achieve:

It is determined to enter the follow-focus combination mode, wherein the follow-focus combination mode is that the automatic follow-focus mode is automatically adopted when the manual follow-focus mode stops, or the manual follow-up mode is allowed to be executed during the execution of the automatic follow-focus mode Follow focus mode of focus mode.
The follow-focus device according to claim 43, wherein the processor is further configured to implement:

Acquiring a selection instruction of a focus mode, where the focus mode includes the combined focus mode, the automatic focus mode, and the manual focus mode;

A target follow-focus mode is selected among the follow-focus modes according to the selection instruction, so that the photographing device adopts the target follow-focus mode for shooting.
The follow-focus device according to claim 25, wherein the lens of the photographing device is coupled to a follow-focus motor, the photographing device and the follow-focus motor are both arranged on a fixed device, and the follow-focus motor is connected to the follow-focus motor The focusing device is connected in communication.
The follow-focus device according to claim 45, wherein the fixed device includes a camera bracket, an airborne pan-tilt, or a hand-held pan-tilt.
A follow-focus device, characterized in that the follow-focus device includes:

motor;

An operating part, used for the user to operate to input a focus control signal, the operating part is mechanically coupled with the rotating part of the motor, and can drive the rotating part of the motor to rotate together;

a drive circuit, the drive circuit is connected to the motor and is used to drive the motor to rotate;

a main control circuit, the main control circuit is connected to the driving circuit, and the main control circuit includes a memory and a processor;

The memory is used to store computer programs;

The processor is configured to execute the computer program and, when executing the computer program, realize the method for controlling the photographing device as claimed in claim 21 , 22 or 23 .
A follow-focus system, characterized in that the follow-focus system includes:

Fixed equipment, the fixed equipment is used to carry shooting equipment;

The follow-focus device according to any one of claims 25-47, the follow-focus device is arranged on the fixed device or the follow-focus device is set independently of the fixed device, and the follow-focus device is used to control the The photographing device performs follow-focus photography on the subject.
The follow focus system according to claim 48, wherein the fixing device includes a camera bracket, an airborne pan/tilt or a handheld pan/tilt.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor realizes any one of claims 1-23. The steps of the control method of the shooting device.