CN110809734A

CN110809734A - Camera lens adjusting method and device, control equipment and control system

Info

Publication number: CN110809734A
Application number: CN201880038853.0A
Authority: CN
Inventors: 谢文麟; 苏铁; 郝祎
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-02-18
Also published as: WO2020097889A1

Abstract

A camera (100) lens adjusting method, a device, a control device and a control system are provided, the camera (100) comprises a view finding lens and an adjusting ring (101), the adjusting ring (101) is matched with a regulator (102) in a transmission mode, a controller (103) drives the adjusting ring (101) to move through controlling the regulator (102) so as to adjust the view finding lens, and the method applied to the controller (103) comprises the following steps: after receiving the calibration instruction, sending a control instruction to the regulator (102), wherein the control instruction is used for controlling an adjusting gear on the regulator (102) to rotate so as to drive the adjusting ring (101) to rotate (S401); acquiring a rotation stroke interval (S402) of the adjusting ring (101) in the process of rotating under the driving of the adjuster (102); and establishing a mapping relation between the rotation stroke interval and a calibration adjustment interval of a control component on the controller (103). Automatic adjustment of the lens of the camera (100) can be safely performed.

Description

Camera lens adjusting method and device, control equipment and control system

Technical Field

The invention relates to the technical field of electronics, in particular to a camera lens adjusting method and device, a control device and a control system.

Background

With the advance of technology and the increase of living standard of people, cameras are not generally luxury goods, and people can use cameras with various performances to acquire needed images in different occasions according to needs. The user can shoot images through an attached camera device such as a smart phone or a tablet personal computer, and can shoot images such as photos and videos with higher quality through a camera such as a single lens reflex camera with higher performance.

The single lens reflex camera is generally provided with an adjusting ring which can adjust the lens, and the adjusting ring can be specifically a tracking ring, a focusing ring and the like, and the structure of the adjusting ring can be schematically shown with reference to fig. 1 a. By rotating the adjusting ring, the aim of focusing can be achieved when the image is shot. The user can take images with such a camera in his/her hand. Also can set up on some equipment, carry out the image through the mode of remote control adjustable ring and shoot, for example set up on certain bearing bracket of cloud platform, or set up again on equipment such as unmanned aerial vehicle.

In a camera lens adjusting system such as the architecture shown in fig. 1, how to facilitate a user to configure a controller so as to more accurately control an adjusting ring of a camera lens becomes a hot point of research.

Disclosure of Invention

The embodiment of the invention provides a camera lens adjusting method, a camera lens adjusting device, a camera lens controlling device and a camera lens controlling system, which can conveniently configure a controller for controlling an adjusting ring.

In one aspect, an embodiment of the present invention provides a method for adjusting a camera lens, where the camera includes a viewfinder lens and an adjusting ring for adjusting the viewfinder lens, the adjusting ring is in transmission fit with an adjuster, and a controller drives the adjusting ring to move by controlling the adjuster to adjust the viewfinder lens, and the method is applied to the controller and includes: after receiving a calibration instruction, sending a control instruction to the regulator, wherein the control instruction is used for controlling an adjusting gear on the regulator to rotate so as to drive the adjusting ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; and establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of a control assembly on the controller so that the controller can adjust the adjusting ring according to the mapping relation.

On the other hand, an embodiment of the present invention further provides an adjusting device for a camera lens, where the camera includes a viewfinder lens and an adjusting ring for adjusting the viewfinder lens, the adjusting ring is in transmission fit with an adjuster, the device is disposed in a controller, and the controller drives the adjusting ring to move by controlling the adjuster to adjust the viewfinder lens, and the device includes: the sending module is used for sending a control instruction to the regulator after receiving the calibration instruction, wherein the control instruction is used for controlling an adjusting gear on the regulator to rotate so as to drive the adjusting ring to rotate; the acquisition module is used for acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; and the processing module is used for establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of the control assembly on the controller so as to facilitate the controller to adjust the adjusting ring according to the mapping relation.

In another aspect, an embodiment of the present invention provides a control device, where the control device is configured to control a camera lens, where the camera includes a view finding lens and an adjusting ring for adjusting the view finding lens, the adjusting ring is in transmission fit with an adjuster, and the control device drives the adjusting ring to move by controlling the adjuster to adjust the view finding lens, where the control device includes: a user interface and a processor; the user interface is used for receiving a calibration instruction; the processor is used for sending a control instruction to the regulator after the user interface receives the calibration instruction, wherein the control instruction is used for controlling the regulating gear on the regulator to rotate so as to drive the regulating ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; and establishing a mapping relation between the rotation travel range and a calibration adjustment range of a control assembly included in the user interface so that the control equipment can adjust the adjusting ring according to the mapping relation.

In another aspect, an embodiment of the present invention further provides a control system for controlling a camera lens, where the camera includes a viewfinder lens and an adjusting ring for adjusting the viewfinder lens, and the system includes: the adjuster is in transmission fit with the adjusting ring, and the controller drives the adjusting ring to move by controlling the adjuster so as to adjust the viewing lens; the controller is used for sending a control instruction to the regulator after receiving the calibration instruction, and the control instruction is used for controlling the regulating gear on the regulator to rotate so as to drive the regulating ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; and establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of a control assembly on the controller so that the controller can adjust the adjusting ring according to the mapping relation.

In the embodiment of the invention, a user can send a calibration instruction to the controller, the controller can complete the configuration of the mapping relation between the rotation travel range of the adjusting ring and the calibration adjustment range of the control assembly on the controller by controlling the rotation of the adjuster, the operation is simple and convenient, the user can enable the controller to enter the configuration mode at any time according to the requirement, and the configuration efficiency of the controller for controlling the camera lens is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1a is a schematic diagram of an adjustment relationship between an adjuster and a camera according to an embodiment of the invention;

fig. 1b is a schematic structural diagram of a control system of a camera lens according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a motor control system configuration for a regulator in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of the present invention after deployment of the adjusting gear and rack on the adjusting ring;

fig. 4a is a schematic flowchart of an adjusting method for a camera lens according to an embodiment of the present invention;

FIG. 4b is a schematic view of a calibration between the adjustment range of the adjuster and the travel range of the adjustment ring in accordance with an embodiment of the present invention;

FIG. 4c is another schematic illustration of an embodiment of the present invention for calibrating between the adjustment range of the adjuster and the travel range of the adjustment ring;

FIG. 4d is a schematic view of another embodiment of the present invention for calibrating the position between the adjustment range of the adjuster and the travel range of the adjustment ring;

FIG. 4e is a schematic view of another embodiment of the present invention for calibrating between the adjustment range of the adjuster and the travel range of the adjustment ring;

FIG. 5 is a flow chart of another camera lens adjustment method according to an embodiment of the invention;

FIG. 6 is a graphical illustration of torque parameter versus stroke interval for an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a camera lens adjusting apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a control device according to an embodiment of the present invention.

Detailed Description

The embodiment of the invention realizes the adjustment of the camera lens by controlling the adjuster to drive the adjusting ring on the camera lens to rotate. In the process of using the camera with the adjusting ring on the lens, the controller is configured to mainly establish a mapping relationship between a calibration adjusting interval of the control assembly on the controller and a rotating stroke interval of the adjusting ring, so that the adjusting ring is correspondingly adjusted to rotate by a certain stroke amount according to an adjusting amount of the control assembly on the controller based on the mapping relationship, for example, a mapping relationship between a rotating angle of an adjusting wheel on the controller and a rotating angle of the adjusting ring is established, the adjusting wheel rotates by 10 degrees, and the adjusting ring correspondingly rotates by 20 degrees under the driving of the adjusting machine.

Fig. 1a is a schematic diagram showing an adjustment relationship between an adjuster and a camera according to an embodiment of the present invention, and fig. 1a shows a positional relationship between a camera 100 and an adjuster 102 in which a lens is adjusted by an adjustment ring 101. The adjustment of the adjustment ring 101 mainly comprises: the motor in the adjuster 102 drives the adjusting gear 1021 to rotate under the driving of electricity, so as to drive the adjusting ring 101 to rotate, thereby achieving the purpose of focusing or aperture adjustment of the camera 100. Specifically, in fig. 1, by controlling the rotation of the adjustment gear 1021 in the adjuster 102, the rotation of the focus ring 1011 or the focus following ring 1012 on the lens can be controlled, so that the purpose of focusing or focusing the camera 100 can be achieved. The camera shown in fig. 1a only includes a focusing ring 1011 and a tracking ring 1012, and in other embodiments, the camera lens may further include an aperture ring for adjusting the exposure level, and the adjustment may also be performed based on the controller and the adjuster of the embodiment of the present invention.

In one embodiment, the adjuster 102 may be controlled by a controller, which may be disposed inside the adjuster 102, and as a part of the adjuster 102, a power component such as a motor in the adjuster 102 is controlled, and the motor is controlled to control the adjusting gear 1021 to rotate, so as to rotate the adjusting ring 101 on the camera lens. In another embodiment, the adjuster 102 can be controlled by an external controller, as shown in fig. 1b, the adjuster 102 can be remotely controlled by a controller 103 as a remote controller, and the motor in the adjuster 102 is controlled to control the rotation of the adjusting gear 1021, so as to drive the adjusting ring 101 on the camera lens to rotate.

Further, as shown in fig. 1b, the controller 103 includes a button 1031, the button 1031 can be used as a power switch, and can also be used as a calibration button, the controller 103 further includes a control component, i.e., an adjustment wheel 1032 in fig. 1b, a user can control the rotation of the motor on the adjuster 102 by manually rotating the adjustment wheel 1032, and further correspondingly control the rotation of the adjustment gear 1021 according to the rotation amount of the adjustment wheel 1032, which is called as an adjustment amount, so as to drive the rotation of the adjustment ring 101 on the camera lens.

In fig. 1a and 1b, the adjusting ring 101 and the adjuster 102 are engaged with each other through gears, so that the adjuster 102 rotates the adjusting ring 101. In other embodiments, the adjustment ring 101 and the adjuster 102 may also be geared together by belt drive, chain drive, or even by friction wheels.

In one embodiment, the control of the adjuster 102 may be based on the adjustment amount of the adjustment wheel 1032 on the controller 103 as in fig. 1b, and on the mapping between the adjustment interval of the adjustment wheel 1032 and the stroke interval of the adjusting ring 101, controlling the adjusting ring 101 to rotate by the corresponding stroke amount. In another embodiment, as shown in fig. 2, which is a schematic diagram of a motor control system structure of the regulator 102 according to an embodiment of the present invention, the motor of the regulator is controlled to rotate according to an input position reference input signal and a corresponding feedback signal, wherein the position reference input signal is an adjustment amount input by a user on a controller such as the controller 103 through rotating the adjustment wheel 1032. Specifically, in fig. 2, r is a position reference input signal, e is a tracking error signal, d is an equivalent disturbance signal, u is a voltage command signal, i is a current command signal, n is a measurement noise signal, v is a velocity feedback signal, and y is a position feedback signal. C_p(s) is a position loop feedback controller, C_v(s) is a speed ringThe feedback controller, filter(s) is a controlled variable filter, Amp is a current controller, J(s) is a speed loop feedback controller, and encoder is an encoder. Based on the architecture shown in fig. 2, the motor of the regulator 102 forms a closed-loop control system by using a position sensor of the motor as a feedback device and the motor as an output element.

The control amount in this control system is the rotation amount of the adjusting gear 1021 driven by the motor, specifically, a target gear position is given based on the adjusting amount on the adjusting wheel 1032, and the target position of the adjusting gear 1021 is controlled by feeding back the position of the adjusting gear 1021, so as to drive the adjusting ring 101 to rotate a corresponding stroke amount.

The camera adjusting ring is generally a position limiting point, fig. 3 is a schematic diagram of the adjusting gear 301 of the adjuster and the rack 302 on the adjusting ring after being unfolded, the rack 302 on the adjusting ring includes a position limiting point a and a position limiting point b, and in one embodiment, the position limiting points function as: a motor on the control regulator drives the regulating gear 301 to rotate clockwise, and when the regulating gear reaches a limit point b, the regulating ring does not rotate any more; similarly, when the motor on the control knob drives the adjusting gear 302 to rotate counterclockwise and reaches the limit point a, the adjusting ring does not rotate any more.

Additionally, in one embodiment, the travel interval defined by the limit points a and b may be only a portion of the travel of the rack 302 on the adjustment ring, such as 80%, 90% of the entire travel. A part of the interval outside the limit point a and/or the limit point b is reserved as a gap, and areas on two sides as shown in fig. 3 are used as a sliding buffer interval.

For the adjusting ring with a limit point, the adjusting section of the adjusting wheel on the controller and the stroke section of the adjusting ring can be calibrated in advance. Fig. 4a is a schematic flow chart illustrating a method for adjusting a camera lens according to an embodiment of the invention. The method of an embodiment of the present invention may be performed by the above-mentioned controller, and the method includes the following steps.

S401: after receiving the calibration instruction, sending a control instruction to the regulator, wherein the control instruction is used for controlling an adjusting gear on the regulator to rotate so as to drive the adjusting ring to rotate. In one embodiment, the calibration command may be a user clicking a button on a remote controller, i.e. a controller, as shown in fig. 1b to issue a calibration command. In one embodiment, the actions and function definitions for the buttons provided on the controller may be as shown in table 1 below.

It should be understood that the following table 1 illustrates the key actions and the definition of the functions of the keys, and in other embodiments, the key actions and the definitions of the functions of the keys may be defined by other key actions and kinetic energies, for example, double-click, long-press, sliding, and other key operations may all define different key functions.

Table 1:

key action	Definition of functions
		One-click key	Motor a end point setting completion of regulator
One-click key	Motor b end point setting completion of regulator
		Long press for more than N seconds	Motor rotation direction reversal of regulator
Double click	Starting calibration, if the motor of the regulator is in calibration, stopping calibration

After the user double-clicks (two continuous clicking operations and the time interval is within the preset interval threshold value) the button on the controller, the user can think that the calibration instruction is received. After receiving the calibration instruction, sending a control instruction to the regulator, wherein the control instruction controls a motor in the regulator to rotate, and the motor drives an adjusting gear on the regulator to further drive an adjusting ring to rotate. At this time, the adjusting wheel in the controller does not need to rotate, and the adjusting section of the adjusting wheel of the controller is known. In some embodiments, a key action for determining an adjustment interval on the controller may be further defined, for example, when three consecutive clicks are performed for the first time, a current adjustment point of an adjustment wheel of the controller is used as a first end point, and when the adjustment wheel is rotated, the adjustment point where the rotated adjustment wheel is located is used as a second end point when three consecutive clicks are performed for the second time, so as to determine the adjustment interval.

S402: and acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster. In the process that the adjusting gear rotates according to the control instruction of the controller, the user can determine the rotating stroke interval of the adjusting gear on the adjuster through user operations such as clicking the key twice in sequence as shown in the table 1. And the long press for more than N seconds (e.g., 1 second) can control the motor of the adjuster to rotate reversely in the current rotation direction, for example, when the current rotation is clockwise, the long press for N seconds can control the motor of the adjuster to rotate counterclockwise.

The rotation stroke interval of the adjusting gear and the rotation stroke interval of the adjusting ring correspond to each other, and the rotation stroke interval of the adjusting gear can be logically used as the rotation stroke interval of the adjusting ring even if the rotation stroke interval of the adjusting gear is not equal to the rotation stroke interval of the adjusting ring.

S403: and establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of a control assembly on the controller so that the controller can adjust the adjusting ring according to the mapping relation. The control assembly on the controller can be the adjusting wheel, and the rotatable range of the adjusting wheel is the whole adjusting range of the controller. The calibration adjustment interval of the adjustment wheel on the controller can be the whole adjustment interval or a part of the whole adjustment interval. The established mapping relationship may be, for example: l is K × S, where L is a calibration adjustment interval and S is a rotation stroke interval, which may be a positive number.

Subsequently, in the control process, the motor of the regulator can be controlled through the regulating wheel based on the mapping relation, so that the regulating gear of the regulator rotates, the regulating ring is driven to rotate, and the purpose of regulating the camera lens is achieved. The angle is used as an example to measure the adjustment interval of the adjusting wheel and the stroke interval of the adjusting ring, when the rotation stroke interval is twice of the calibration adjustment interval, K is 2, at the moment, when the adjustment amount (namely the rotation angle of the rotating adjusting wheel) of the user on the adjusting wheel is 10 degrees, the adjusting gear rotates for 20 degrees, and the adjusting ring rotates along with the adjustment.

In addition, in order to facilitate the user to intuitively know the current operating state of the controller, an indicator lamp may be disposed on the controller, as shown in table 2 below, which defines the relationship between the indicator lamp on the controller and the operating state of the controller indicated by the indicator lamp.

It is understood that the indication lamp actions and the indication of the operation states described in the following table 2 are only examples, and other indication lamps with different colors and/or different numbers of indication lamps may be used to indicate different operation states of the controller according to design requirements.

Table 2:

in one embodiment, a status indicator light may also be provided on the regulator, and the relationship between the status indicator light and the operating status indicator is shown in table 3 below.

It will be appreciated that table 3 is merely exemplary and that other colored indicator lights and/or different numbers of indicator lights may be used as desired to indicate different operating conditions of the regulator.

Table 3:

actuation of indicator light	Representation of operating conditions
		Red light double flash	Requiring firmware upgrades
Red light single flash	Unconnected controller
		Red light flash	Motor locked rotor
The green light is always on	The focus following motor finishes the calibration stroke and works normally in a position mode
		Single flashing green light	The position mode can work

In table 3, when the adjuster operates in the position mode, the information such as the angular position of the motor or the rotation of the adjusting gear can be determined by a built-in sensor, such as a hall sensor. So that the regulator feeds back the stroke interval of the rotation of the regulating gear or the regulating ring to the controller.

In one embodiment, the adjuster may also be provided with keys, and the relationship between the key actions and the function definitions is shown in table 4 below.

Table 4:

in one embodiment, the performing of the subsequent rotation control based on the set mapping relationship may include: the method comprises the steps of acquiring an adjustment quantity detected on a control assembly of the controller, sending a control instruction to control a power assembly in the adjuster to rotate according to a mapping relation between a calibration adjustment interval of the control assembly and a rotation travel interval of the adjustment ring and according to the acquired adjustment quantity so as to drive the adjustment ring to move.

The adjustment amount mainly refers to the movement amount of the control assembly controlled by a user to move, and for the adjustment wheel, the detected adjustment amount is mainly the unit scale of the rotation of the adjustment wheel when the user rotates the adjustment wheel. For example, the adjustment wheel may be rotated clockwise or counterclockwise by one turn, and then one turn may be quantized to 100 scales, and for each unit of rotation, the corresponding adjustment amount is 1, and the adjustment amount after half of the rotation is 50. Alternatively, the adjustment amount may be an angular value, for example, 10 degrees or 20 degrees of rotation.

After the adjustment amount is obtained, the stroke amount corresponding to the adjustment amount at this time can be obtained according to the mapping relationship between the calibration adjustment interval of the control assembly and the rotation stroke interval of the adjustment ring, for example, when K is 1, when the current rotation reaches 50 unit scales, the corresponding stroke amount is also 50% of the whole stroke interval, and for example, when K is 2, the current adjustment amount is 20 degrees, and the corresponding adjustment gear rotates 40 degrees (or logically, it is considered that the adjustment ring rotates 40 degrees correspondingly). In one embodiment, the controller may detect the adjustment amount on the adjustment wheel in real time, and generate a control command to control the motor to rotate by a corresponding stroke amount according to L ═ K × S in real time.

Specifically, the calibration between the adjustment amount of the adjustment wheel and the stroke interval of the adjustment ring according to the embodiment of the present invention will be described with reference to fig. 4b to 4 e.

The range of positions in which the adjustment wheel can be moved, or the adjustment range, can be quantified by 0 to 100, for example, including 100 unit scales. Of course, other quantification methods can be used, and the adjustment interval can also be described by percentage, where 100% includes the entire adjustment interval of the adjustment wheel, for example, the adjustment wheel can rotate twice, i.e., 360 degrees, and then the entire 360-degree movable range is the entire adjustment interval of the adjustment wheel.

The stroke range of the adjusting ring corresponds to the stroke of the adjusting gear of the adjuster, which may be greater than the adjusting range of the adjusting wheel, and at this time, after the calibration is completed, when the adjusting wheel is rotated by a smaller adjustment amount, the stroke amount corresponding to the adjusting ring may be greater than the adjustment amount, for example, the stroke range of the adjusting ring is twice the adjusting range of the adjusting wheel, and when the adjusting wheel is rotated by 10% of the adjustment amount, the stroke amount of the adjusting ring is 20% of the stroke range of the adjusting ring. In other embodiments, the travel range of the adjusting ring may be equal to or less than the adjusting range of the adjusting wheel, and the rotation speeds of the adjusting gear or the adjusting ring are controlled to be different at the same rotation speed of the adjusting wheel and at different K values.

In one embodiment, when the controller receives a calibration command, for example, when the controller detects that the button of the adjustment wheel is pressed on the remote controller shown in fig. 1b, the controller obtains a default travel interval of a default setting, and determines the default travel interval of the default setting as a rotation travel interval of the adjustment ring; the controller sets a mapping between the calibrated adjustment interval of the control unit (in this case the entire adjustment interval of 0-100% in fig. 1 b) and the determined rotational travel interval of the adjusting ring, so that each time the adjustment detected on the adjusting wheel controls the rotation of the adjusting ring or the adjusting gear on the adjuster by a corresponding travel. As shown in fig. 4b, during calibration, the adjustment interval 401 (calibration adjustment interval) of the adjustment wheel may be calibrated with a default stroke interval 402 (rotation stroke interval). In fig. 4b, the default stroke interval 402 is smaller than the actual stroke interval 403 of the current adjusting ring. After the calibration shown in fig. 4B is completed, in a normal case, when the adjustment wheel of the controller is adjusted by 0, the adjustment gear of the corresponding adjuster is located at a point a (or a point B) of the default stroke section 402, and when the adjustment amount of the controller reaches 100% of the adjustment amount, the adjustment gear of the corresponding adjuster is located at a point B of the default stroke section 402 (when the adjustment amount of 0 corresponds to the point B, the point a is used). The great regulating variable of regulating wheel can correspond a little stroke volume on the adjustable ring, can make things convenient for the user to carry out the adjustment that becomes more meticulous through the regulating wheel of controller like this. The default stroke interval 402 may be a stroke interval set according to an empirical value, or the default stroke interval 402 is determined by performing an average calculation or taking a minimum value based on the stroke intervals of a plurality of different types of lenses and adjusting rings thereof.

In addition to the calibration by default set stroke interval described above, in another embodiment, the controller determines the stroke interval of the adjusting ring by controlling the adjuster to move the adjusting ring after receiving a calibration command, for example, after detecting that the adjusting wheel button is pressed, for example, double-click, on the remote controller as shown in fig. 1 b; the controller sets a mapping between the calibrated adjustment interval of the control unit and the rotational travel interval of the adjusting ring, for example L — K × S, so that each time an adjustment variable is detected on the adjusting wheel, the adjusting ring or the adjusting gear on the adjuster is controlled to rotate by a corresponding travel variable.

In an embodiment, the S402 may specifically include: acquiring a first stroke interval between a first limit point and a second limit point in the adjusting ring, and determining the first stroke interval as a rotation stroke interval; the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate. The first and second limit points may be, for example, limit points a and b of an adjusting ring. Specifically, the acquiring a stroke interval between a first limit point and a second limit point in the adjustment ring includes: controlling an adjusting gear of the adjuster to drive the adjusting ring to move so as to determine a first limit point of the adjusting ring; after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point; and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

In one embodiment, when a torque parameter of a power assembly connected with an adjusting gear meets a preset condition in the process that the adjusting gear of the adjuster drives the adjusting ring to move, a current rotating stroke point of the adjusting gear is recorded as a first limit point or a second limit point of the adjusting ring; wherein, the torque parameter of the power component connected with the adjusting gear meets the preset condition and comprises the following steps: the torque parameter of the power assembly connected with the adjusting gear is larger than a torque threshold value, or the torque parameter of the power assembly connected with the adjusting gear is larger than the torque threshold value and the duration is larger than a duration threshold value.

After receiving the calibration instruction, the controller may control the adjuster to drive the adjusting ring to rotate, when the output torque fed back by the motor of the adjuster is greater than a preset threshold, or the output torque is greater than the preset threshold and continues for a preset time, it may be determined that a first limit point is reached, the point is used as a starting point or a starting angle, and then the adjuster is controlled to reversely drive the adjusting ring to rotate, and a second limit point is determined in the same manner, the point is used as an end point or an end point angle, and a stroke of the adjusting gear of the adjuster, that is, a stroke interval defined by the first limit point and the second limit point (the end point position subtracts the starting point position or the end point angle subtracts the starting point angle).

In other embodiments, the first restriction point and the second restriction point can be determined by direct observation of the user during calibration, after a calibration command is received, for example, after the calibration is started by the double-click button shown in the above table 2, the regulator is controlled to drive the regulating ring to move, the first limit point is determined to be reached when the regulating ring cannot rotate, at the moment, the first limit point is determined by the single-click button, namely, the position data (or the angle) sensed by a sensor on the regulator is taken as a starting point, namely a first limit point, the motor is reversely rotated by long pressing for 1 second and the like, the second limit point is reached when the adjusting ring is observed to be unable to rotate, the button is clicked again to determine the terminal point, namely the second limit point, and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

In one embodiment, by controlling the adjuster to drive the adjusting ring to move to determine the stroke interval of the adjusting ring, a mapping relationship can be established between the whole adjusting interval of the adjusting wheel of the controller and the whole stroke interval of the adjusting ring, which is defined by the first limit point and the second limit point, and the whole adjusting interval refers to the adjusting interval between the initial adjusting point and the final adjusting point of the adjusting wheel (i.e., the control assembly) on the controller. As shown in fig. 4c, during the calibration, the adjustment section 401 (i.e. the calibration adjustment section) of the adjustment wheel can be calibrated with the actual stroke section 403 (i.e. the rotational stroke section) of the adjustment ring. After the calibration shown in fig. 4c is completed, normally, when the adjustment wheel of the controller is adjusted by 0, the adjustment gear of the corresponding adjuster is located at the point a (or the point b) of the actual stroke interval, and when the adjustment amount of the controller reaches 100% adjustment amount, the adjustment gear of the corresponding adjuster is located at the point b of the default stroke interval (when the adjustment amount of 0 corresponds to the point b, the point a is the time).

In one embodiment, the mapping relationship between the calibration adjustment interval of the control assembly and the rotational stroke interval of the adjustment ring comprises: a mapping relation between a sub-adjustment section (i.e., a calibration adjustment section) included in the adjustment section of the control assembly and a rotation stroke section of the adjustment ring; wherein the stroke interval of the adjusting ring is determined according to a first limit point and a second limit point of the adjusting ring. That is, the actual travel interval determined by the first limit point and the second limit point is mapped with a part of the adjustment interval, and the calibration adjustment interval of the control assembly on the controller comprises: a control section on the controller between a first adjustment point and a second adjustment point between an initial adjustment point and an ending adjustment point of the control assembly. Specifically, after receiving the calibration instruction, when receiving a third confirmation instruction, the current rotating adjustment point of the control assembly is marked as a first adjustment point; when a fourth confirmation instruction is received, the current rotating adjusting point of the control component is marked as a second adjusting point.

As shown in fig. 4d, during calibration, a sub-adjustment interval 4011, which is a partial rotatable sub-range, can be selected from the adjustment interval 401 of the adjustment wheel and the actual stroke interval 403 of the adjustment ring can be calibrated. The actual operations may include: the controller is enabled to enter the operating mode selected by the adjusting interval currently for two consecutive times according to P seconds (or other defined operating modes), when the controller is continuously clicked for three times for the first time (the third confirmation instruction may be other defined operating modes), the current adjusting point of the adjusting wheel of the controller is used as the first adjusting point, that is, the adjusting point at the 25% position in fig. 4d, and when the user manually rotates the adjusting wheel or rotates the adjusting wheel in other manners, and then continuously clicks for three times for the second time (the fourth confirmation instruction may be other defined operating modes), the adjusting point at the rotated adjusting wheel is used as the second end point, that is, the adjusting point at the 75% position in fig. 4d, so as to determine the calibration adjusting interval of 25% to 75% of the adjusting interval. After the calibration shown in fig. 4d is completed, normally, when the adjustment wheel of the controller is adjusted by 25%, the adjustment gear of the corresponding adjuster is located at the point a (or the point b) of the actual stroke interval, and when the adjustment amount of the controller reaches 75%, the adjustment gear of the corresponding adjuster is located at the point b of the default stroke interval (when the adjustment amount of 0 corresponds to the point b, the point a is the time). Therefore, the smaller regulating quantity can control a larger stroke range, and a user can conveniently and quickly regulate and control the regulating ring.

In one embodiment, the mapping relationship between the calibration adjustment interval of the control assembly and the rotational stroke interval of the adjustment ring comprises: a mapping relationship between a sub-adjustment interval (calibration adjustment interval) included in the complete adjustment interval of the control assembly and a sub-stroke interval (rotation stroke interval) in the actual stroke interval of the adjusting ring; wherein the calibrated stroke interval of the adjusting ring is determined according to a first limit point and a second limit point of the adjusting ring. The adjustment manner of the sub-adjustment interval can refer to the description of the corresponding content of fig. 4 d. The sub-stroke interval is a second stroke interval between the first stroke point and the second stroke point in the adjusting ring, and the second stroke interval is determined as a rotation stroke interval; the first stroke point and the second stroke point are obtained by detection in the process that the regulator drives the adjusting ring to rotate, and the first stroke point and the second stroke point are both within an actual stroke interval limited by a first limit point and a second limit point. Specifically, a current rotating stroke point of the adjusting gear when a first confirmation instruction is received is recorded as a first stroke point, and a current rotating stroke point of the adjusting gear when a second confirmation instruction is received is recorded as a second stroke point. The actual operations may include: after the limit point a is determined, the regulator is controlled to rotate clockwise, when a single-click operation (a first confirmation instruction, which may be another defined operation mode) of the user on the button is received in the operation mode selected by the stroke interval, the current stroke point is determined as a first stroke point, for example, the AA point in fig. 4e, the adjusting ring continues to rotate, and when a single-click operation (a second confirmation instruction, which may be another defined operation mode) is received again, the current stroke point after the continuous rotation is determined as a second stroke point, for example, the BB point in fig. 4e, and then a sub-stroke interval of AA-BB is determined.

As shown in fig. 4e, during calibration, a partial rotatable sub-adjustment interval 4011, which is a sub-adjustment interval 401 of the adjustment wheel, and a partial limit stroke sub-interval 4031, which is a sub-stroke sub-interval 403 of the adjustment ring, which is a sub-stroke sub-interval, may be selected from the adjustment interval 401 of the adjustment wheel to perform calibration. After the calibration shown in fig. 4e is completed, normally, when the adjustment wheel of the controller is adjusted by 25%, the adjustment gear of the corresponding adjuster is located at the AA point (or the BB point) of the actual stroke interval, and when the adjustment wheel of the controller reaches 75% of the adjustment amount, the adjustment gear of the corresponding adjuster is located at the BB point (when 0 adjustment amount corresponds to the BB point, the AA point is at this time) of the default stroke interval. Therefore, the user can conveniently adjust the adjusting ring at any adjusting speed. For example, if the adjustment speed is slow and the adjustment accuracy is considered, the sub-adjustment interval 4011 may be made smaller than the sub-stroke interval 4031, and if the adjustment speed is slow and the adjustment accuracy is considered, the sub-adjustment interval 4011 may be made larger than the sub-stroke interval 4031. If the rotation speed of the adjustment wheel is matched with the adjustment speed of the adjustment ring, the sub adjustment interval 4011 may be equal to the sub stroke interval 4031.

In one embodiment, the mapping relationship between the calibration adjustment interval of the control assembly and the rotational stroke interval of the adjustment ring comprises: a mapping relationship between a calibration adjustment interval of the control assembly and a sub-stroke interval (rotation stroke interval) included in an actual stroke interval of the adjusting ring; the actual travel interval of the adjusting ring is determined according to a first limit point and a second limit point of the adjusting ring, namely, a part of the actual travel interval determined by the first limit point and the second limit point is mapped with the adjusting interval.

After the actual stroke interval is determined, the adjustment interval of the adjustment wheel of the controller is known, that is, various calibration processes can be performed as needed, so that the user can adjust the adjustment ring of the lens. Also, the stroke point at which the adjustment gear is currently rotated may be determined and fed back by the adjuster according to the stroke amount (e.g., the angle of rotation) of the adjustment gear. In addition, in other embodiments, the mapping relationship may be configured by a software application, specifically, a user interface may be provided for a user, patterns similar to fig. 4b to 4e for expressing the adjustment interval and the trip interval may be displayed on the user interface, and the user determines the adjustment interval and the trip interval to be mapped by sliding a virtual button, and completes mapping of the adjustment interval and the trip interval, and writes the mapping into the controller. Or, the controller is an intelligent terminal, has a touch screen display function, and then carries out intuitive configuration through a user interface.

After the calibration process is completed, please refer to fig. 5, which is a flowchart illustrating a camera lens adjusting method according to an embodiment of the present invention, where the method according to the embodiment of the present invention can be executed by the aforementioned controller. As mentioned above, the controller can be a single remote controller, and the rotation control of the lens adjusting ring is realized by means of remote control of the adjuster; the adjusting gear can be arranged in the adjuster, the adjusting gear is controlled to rotate by controlling the output torque of the motor through being connected with the motor in the adjuster, and finally rotation control over the lens adjusting ring is achieved.

In the embodiment of the invention, the adjusting ring is in transmission fit with the adjuster, and the controller drives the adjusting ring to adjust and control the viewing lens by controlling the rotation of the adjuster.

S501: a controller obtains operating parameters of a regulator, including a torque parameter of the regulator as the regulator drives movement of the adjustment ring. The torque output under various conditions during adjustment of the adjustment ring by a regulator such as the one shown in fig. 1a and 1b is evaluated, resulting in a graph of the torque parameter versus the actual stroke interval as shown in fig. 6. Based on the illustrated relation curve, the embodiment of the invention controls the regulator from the moment of obtaining the torque parameter, and further completes the safety control of the lens regulating ring. The torque parameter is calculated by sensing the voltage and current on the power component of the regulator, which in one embodiment may be calculated by the regulator and sent to the controller.

S502: and if the torque parameter meets a preset control condition, the controller controls the power assembly of the regulator to reduce the output torque of the power assembly. The power assembly includes a motor. When detecting that the torque parameter satisfies preset control condition, can think that the motor of regulator probably has the condition of stalling, has the risk that the motor is burnt, through reducing this moment the output torque of power component realizes safety control to avoid the motor risk of burning.

The case where the locked rotor occurs is, for example: in the process of controlling the rotation of the motor of the adjuster to enable the adjusting gear to drive the adjusting ring to rotate, the adjusting ring can not rotate when reaching a limit point due to the reasons of gear slippage and the like, but the motor of the adjuster drives the adjusting gear to rotate, and the motor outputs torque at the moment, but the adjusting ring and the adjusting gear do not rotate actually. At this time, the controller controls the power assembly of the regulator, so as to reduce the output torque of the power assembly to a preset torque threshold, as shown in fig. 6, and reducing the output torque of the power assembly mainly includes gradually reducing the torque of the motor to a minimum value, and even turning off the power supply of the motor.

In one embodiment, the controller may determine in real time whether a parameter value of the acquired operating parameter is greater than a preset second threshold; and if so, triggering and detecting whether the torque parameter meets the preset control condition. Referring to fig. 6, it can be found that after the rotation is started from the limit point a, the output torque reaches a certain value when reaching the limit point b, and at this time, a configured value or a torque value at the limit point b acquired during data initialization is taken as a reference value, and the reference value is taken as a second threshold value, or a value slightly smaller than the reference value or slightly larger than the reference value is taken as a second threshold value, and when the torque value is detected to be larger than the second threshold value, a processing flow for determining whether the torque parameter meets a preset control condition is started, for example, a stroke point of the movement of the adjusting ring during the rotation of the adjuster to drive the adjusting ring is started to be acquired, and whether the stroke point is a target stroke point is determined; or to start a process of detecting whether the adjustment amount on a control member such as an adjustment wheel on the controller is a preset target amount or not, or the like.

The adjuster mainly drives the adjusting ring to rotate in a gear meshing mode, and in other embodiments, the adjuster and the adjusting ring can be in transmission fit through belt transmission, chain transmission or even a friction wheel mode.

In one embodiment, the torque parameter satisfying the preset control condition includes: the parameter value of the torque parameter is larger than a preset first threshold value, and the duration of the torque parameter larger than the preset first threshold value is larger than a preset duration threshold value. Referring to fig. 6, for example, the first threshold is a value close to the maximum value of the torque of the motor, and when the first threshold is greater than the first threshold and lasts for 5 seconds, it is considered that the control condition is satisfied, and the torque needs to be reduced, for example, the torque is gradually reduced to the minimum value after 5 seconds, so as to ensure that the motor is kept at the position where the stalling occurs, but the motor does not rotate. It is understood that the minimum value may approach or equal 0 to stall the motor in the stall position.

In one embodiment, the torque parameter satisfying the preset control condition includes: in the process that the regulator rotates to drive the adjusting ring to move, the adjusting ring moves to a preset target travel point, and the duration of the torque parameter is greater than a preset first threshold is greater than a preset duration threshold. In order to avoid the overhead caused by continuously acquiring the torque parameters, the torque parameters output by the motor do not need to be acquired in real time, but the acquisition of the torque parameters is started only when the adjusting ring is detected to rotate to a certain specific position, namely a preset target travel point, along with the rotation of the adjusting gear of the adjuster. In one embodiment, the target trip point may be a restriction point, such as restriction point a or restriction point b described above. In another embodiment, the target travel point is a point within a preset travel interval set according to limit points specified on the travel of said adjusting ring. The preset stroke interval may include: the travel interval from a point close to the limit point. Whether the adjusting ring moves to the target stroke point or not can be detected by the adjuster, and the adjuster can determine whether the adjusting ring reaches the limit point or a certain point close to the limit point along with the rotation of the adjusting gear according to the stroke of the adjusting gear which has rotated. Of course, in other embodiments, whether the adjustment ring moves to the target travel point may also be determined based on data sensed by a motion sensor disposed on the adjustment ring.

In one embodiment, the controller comprises a control component, the controller controls the adjuster to drive the adjusting ring to move according to the detected adjusting amount of the adjusting interval on the control component, the control component is the adjusting wheel mentioned above, and the motor of the adjuster can be controlled to rotate by rotating the adjusting wheel. The controller can also be a mobile terminal or a remote controller, for example, a control interface is arranged on the mobile terminal, and the function of the control assembly is realized through a parameter input area or a virtual adjusting wheel on the control interface; or the functions of the control assembly are realized through a dial wheel, a knob or a key on a remote controller. The torque parameter meeting the preset control condition comprises the following steps: the detected regulating quantity on the control assembly is a preset target quantity, and the duration of the torque parameter is greater than a preset first threshold value. In order to avoid the overhead caused by continuously acquiring the torque parameters, the torque parameters output by the motor are not acquired in real time, but the output torque of the motor of the regulator is acquired only when the regulating wheel is determined to rotate to a certain regulating point. The specific adjustment point may be, for example, an adjustment point corresponding to a limit point of the adjustment ring, or an adjustment point corresponding to a point in a certain section of the adjustment ring close to the limit point, and specifically, the preset target amount falls within a preset adjustment amount range, which is set according to the limit point specified on the movement stroke of the adjustment ring.

The embodiment of the invention designs a control mode of the power assembly of the regulator, and can effectively monitor the locked-rotor condition in the process of driving the adjusting ring of the camera lens to rotate based on the torque output by the power assembly in the process of automatically controlling the focus ring or the follow-focus ring of the camera lens, thereby controlling the output torque of the power assembly, effectively avoiding the possibility of damaging the motor of the regulator due to locked-rotor and improving the safety of automatic regulation of the camera lens.

Referring to fig. 7, the structural diagram of the camera lens adjusting device according to the embodiment of the present invention is a structural diagram of the camera lens adjusting device, where the device may be applied to the controller, in the embodiment of the present invention, the camera includes a viewfinder lens and an adjusting ring for adjusting the viewfinder lens, the adjusting ring is in transmission fit with the adjuster, the controller drives the adjusting ring to move by controlling the adjuster to adjust the viewfinder lens, and specifically, the camera lens adjusting device may perform focus following adjustment and focus adjustment by driving the adjusting ring to move, and the device is disposed in the controller.

The sending module 701 is configured to send a control instruction to the adjuster after receiving a calibration instruction, where the control instruction is used to control an adjusting gear on the adjuster to rotate so as to drive the adjusting ring to rotate; an obtaining module 702, configured to obtain a rotation stroke interval of the adjusting ring in a process of rotating under the driving of the adjuster; a processing module 703 is configured to establish a mapping relationship between the rotation stroke interval and a calibration adjustment interval of a control assembly on the controller, so as to adjust the adjustment ring based on the mapping relationship.

In one embodiment, the obtaining module 702, when configured to obtain a rotation stroke interval of the adjusting ring during the rotation of the adjusting ring driven by the adjuster, is configured to obtain a first stroke interval of the adjusting ring between a first limit point and a second limit point, and determine the first stroke interval as the rotation stroke interval; the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate.

In one embodiment, the obtaining module 702, when configured to obtain a stroke interval between a first limit point and a second limit point in the adjusting ring, is configured to control an adjusting gear of the adjuster to move the adjusting ring to determine the first limit point of the adjusting ring; after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point; and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

In one embodiment, the obtaining module 702, when being configured to obtain a rotation stroke interval of the adjusting ring during the rotation of the adjusting ring driven by the adjuster, is configured to obtain a second stroke interval of the adjusting ring between the first stroke point and the second stroke point, and determine the second stroke interval as the rotation stroke interval; the first stroke point and the second stroke point are detected in the process that the regulator drives the adjusting ring to rotate.

In one embodiment, the stroke point at which the adjustment gear is currently rotated when the first confirmation instruction is received is recorded as a first stroke point, and the stroke point at which the adjustment gear is currently rotated when the second confirmation instruction is received is recorded as a second stroke point.

In one embodiment, the current rotation stroke point of the adjusting gear is determined and fed back by the adjuster according to the stroke amount of the adjusting gear.

In one embodiment, the calibration adjustment interval of the control component on the controller comprises: a regulation interval between an initial regulation point and an end regulation point of a control assembly on the controller.

In one embodiment, the calibration adjustment interval of the control component on the controller comprises: a control section on the controller between a first adjustment point and a second adjustment point between an initial adjustment point and an ending adjustment point of the control assembly.

In one embodiment, after receiving the calibration command, the adjusting point of the control assembly which is currently rotated when receiving the third confirmation command is recorded as the first adjusting point; when a fourth confirmation instruction is received, the current rotating adjusting point of the control component is marked as a second adjusting point.

For the specific implementation of each module of the apparatus in the embodiment of the present invention, reference is made to the description of related contents in the foregoing embodiment, which is not repeated herein. The respective module may also perform other functions that the above-mentioned controller can implement, such as a corresponding scheme of controlling the motor of the regulator based on the regulated amount and the corresponding mapping, for example, a corresponding scheme of the corresponding embodiment of fig. 5.

Referring to fig. 8 again, the present invention is a schematic structural diagram of a control device according to an embodiment of the present invention, the control device corresponds to the aforementioned controller, the control device is configured to adjust a camera lens, the camera includes a view finding lens and an adjusting ring for adjusting the view finding lens, the adjusting ring is in transmission fit with an adjuster, and the control device drives the adjusting ring to move by controlling the adjuster to adjust the view finding lens, where the control device includes: a user interface 802 and a processor 801; further optionally, the control device may further include a power supply circuit, a charging interface, and the like.

The user interface 802 includes buttons 8021, control components 8022. The control assembly 8022 may be the adjustment wheel mentioned above. The button 8021 can be used as a power switch, and can also be used to trigger calibration of the mapping relationship between the adjustment interval and the travel interval.

The processor 801 may be a Central Processing Unit (CPU). The processor 801 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or the like. The PLD may be a field-programmable gate array (FPGA), a General Array Logic (GAL), or the like. The processor 801 may implement the camera lens adjustment method in the foregoing embodiment by calling program instructions stored in the storage device 803 provided in the control apparatus.

The storage 803 may include a volatile memory (volatile memory), such as a random-access memory (RAM); the storage 803 may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a solid-state drive (SSD), etc.; the storage 803 may also comprise a combination of memories of the kind described above.

The user interface 802, configured to receive a calibration instruction;

the processor 801 is configured to send a control instruction to the adjuster after the user interface 802 receives the calibration instruction, where the control instruction is used to control an adjusting gear on the adjuster to rotate so as to drive the adjusting ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; a mapping between the rotational travel range and a calibrated adjustment range of the control assembly 8022 included in the user interface 802 is established to facilitate adjustment of the adjustment ring based on the mapping.

In one embodiment, the processor 801 is configured to obtain a first stroke interval between a first limit point and a second limit point in the adjustment ring, and determine the first stroke interval as a rotation stroke interval; the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate.

In one embodiment, the processor 801 is configured to control an adjusting gear of the adjuster to move the adjusting ring to determine a first limit point of the adjusting ring; after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point; and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

In one embodiment, the processor 801 is configured to obtain a second stroke interval in the adjustment ring between the first stroke point and the second stroke point, and determine the second stroke interval as a rotation stroke interval; the first stroke point and the second stroke point are detected in the process that the regulator drives the adjusting ring to rotate.

In one embodiment, the calibration adjustment interval of the control assembly 8022 includes: the control element 8022 has a regulation interval between an initial regulation point and an end regulation point.

In one embodiment, the calibration adjustment interval of the control assembly 8022 includes: the control assembly 8022 has a regulation interval between a first regulation point and a second regulation point between an initial regulation point and an end regulation point.

In one embodiment, after receiving the calibration command, the current adjustment point of the control element 8022 is recorded as the first adjustment point when the third confirmation command is received; when the third confirmation instruction is received, the current rotation adjustment point of the control element 8022 is recorded as the second adjustment point.

For the specific implementation of the processor in the embodiment of the present invention, reference is made to the description of relevant contents in the foregoing embodiment, which is not repeated herein. The processor 801 may also perform other functions that the above mentioned controller can implement, such as a corresponding scheme of controlling the motor of the regulator based on the regulating quantity and the corresponding mapping, for example, a corresponding scheme of the corresponding embodiment of fig. 5.

Further, an embodiment of the present invention further provides a control system for a camera lens, a specific schematic of the system can be shown in fig. 1b, where the camera includes a viewfinder lens and an adjusting ring for adjusting the viewfinder lens, and the system includes: the adjusting ring is in transmission fit with the adjuster, and the controller drives the adjusting ring to move by controlling the adjuster so as to adjust the viewing lens;

the controller is used for sending a control instruction to the regulator after receiving the calibration instruction, and the control instruction is used for controlling the regulating gear on the regulator to rotate so as to drive the regulating ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; and establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of a control assembly on the controller so as to adjust the adjusting ring on the basis of the mapping relation.

In one embodiment, the controller is configured to acquire a first stroke interval between a first limit point and a second limit point in the adjusting ring, and determine the first stroke interval as a rotation stroke interval; the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate.

In one embodiment, the controller is configured to control an adjusting gear of the adjuster to move the adjusting ring to determine a first limit point of the adjusting ring; after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point; and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

In one embodiment, the controller is configured to acquire a second stroke interval between the first stroke point and the second stroke point in the adjusting ring, and determine the second stroke interval as a rotation stroke interval; the first stroke point and the second stroke point are detected in the process that the regulator drives the adjusting ring to rotate.

In one embodiment, the calibration adjustment interval of the control assembly comprises: an adjustment interval between an initial adjustment point and an end adjustment point of the control assembly.

In one embodiment, the calibration adjustment interval of the control assembly comprises: a regulation interval between a first regulation point and a second regulation point between an initial regulation point and an end regulation point of the control assembly.

In one embodiment, after receiving the calibration instruction, the current rotating adjusting point of the control assembly when receiving the third confirmation instruction is recorded as the first adjusting point; when a fourth confirmation instruction is received, the current rotating adjusting point of the control component is marked as a second adjusting point.

The specific implementation of the controller in the embodiments of the present invention may refer to the description of the corresponding content in the foregoing embodiments, which is not repeated herein. The controller may also perform other functions that the above mentioned controller can perform, such as a corresponding scheme of controlling the motor of the regulator based on the regulated amount and a corresponding mapping, e.g. a corresponding scheme of the corresponding embodiment of fig. 5.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The above disclosure is intended to be illustrative of only some embodiments of the invention, and is not intended to limit the scope of the invention.

Claims

1. A camera lens adjusting method, the camera includes a view finding lens and an adjusting ring for adjusting the view finding lens, the adjusting ring is matched with an adjuster through transmission, a controller drives the adjusting ring to move through controlling the adjuster to adjust the view finding lens, the method is applied to the controller, and comprises the following steps:

after receiving a calibration instruction, sending a control instruction to the regulator, wherein the control instruction is used for controlling an adjusting gear on the regulator to rotate so as to drive the adjusting ring to rotate;

acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster;

and establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of a control assembly on the controller so that the controller can adjust the adjusting ring according to the mapping relation.

2. The method of claim 1, wherein said obtaining a rotational travel range of said adjusting ring during rotation of said adjusting ring by said adjuster comprises:

acquiring a first stroke interval between a first limit point and a second limit point in the adjusting ring, and determining the first stroke interval as a rotation stroke interval;

the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate.

3. The method of claim 2, wherein said obtaining a travel range in said adjustment loop between a first limit point and a second limit point comprises:

controlling an adjusting gear of the adjuster to drive the adjusting ring to move so as to determine a first limit point of the adjusting ring;

after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point;

and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

4. The method according to claim 3, characterized in that when the torque parameter of the power assembly connected with the adjusting gear meets the preset condition in the process that the adjusting gear of the adjuster drives the adjusting ring to move, the current rotating stroke point of the adjusting gear is recorded as a first limit point or a second limit point of the adjusting ring;

wherein, the torque parameter of the power component connected with the adjusting gear meets the preset condition and comprises the following steps: the torque parameter of the power assembly connected with the adjusting gear is larger than a torque threshold value, or the torque parameter of the power assembly connected with the adjusting gear is larger than the torque threshold value and the duration is larger than a duration threshold value.

5. The method of claim 1, wherein said obtaining a rotational travel range of said adjusting ring during rotation of said adjusting ring by said adjuster comprises:

acquiring a second stroke interval between the first stroke point and the second stroke point in the adjusting ring, and determining the second stroke interval as a rotating stroke interval;

the first stroke point and the second stroke point are detected in the process that the regulator drives the adjusting ring to rotate.

6. The method according to claim 5, characterized in that the point of travel at which the regulating gear is currently rotated when a first confirmation command is received is denoted as a first point of travel and the point of travel at which the regulating gear is currently rotated when a second confirmation command is received is denoted as a second point of travel.

7. The method according to claim 4 or 6, wherein the current rotation stroke point of the regulating gear is determined and fed back by the regulator according to the stroke amount of the regulating gear.

8. The method of claim 1, wherein the calibration adjustment interval for the control component on the controller comprises: a regulation interval between an initial regulation point and an end regulation point of a control assembly on the controller.

9. The method of claim 1, wherein the calibration adjustment interval for the control component on the controller comprises: a control section on the controller between a first adjustment point and a second adjustment point between an initial adjustment point and an ending adjustment point of the control assembly.

10. The method of claim 9, wherein after receiving the calibration command, the adjustment point at which the control assembly is currently rotating when receiving the third confirmation command is recorded as the first adjustment point; when a fourth confirmation instruction is received, the current rotating adjusting point of the control component is marked as a second adjusting point.

11. The utility model provides an adjusting device of camera lens, its characterized in that, the camera includes framing lens and the adjustable ring that is used for adjusting framing lens, the adjustable ring passes through the transmission cooperation with the regulator, the device sets up in the controller, the controller is through control the regulator drives the adjustable ring motion is in order to right framing lens adjusts, the device includes:

the sending module is used for sending a control instruction to the regulator after receiving the calibration instruction, wherein the control instruction is used for controlling an adjusting gear on the regulator to rotate so as to drive the adjusting ring to rotate;

the acquisition module is used for acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster;

and the processing module is used for establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of the control assembly on the controller so as to facilitate the controller to adjust the adjusting ring according to the mapping relation.

12. The utility model provides a control device, its characterized in that, control device is used for controlling camera lens, the camera includes the camera lens and is used for adjusting the adjustable ring of camera lens, the adjustable ring passes through transmission fit with the regulator, control device is through control the regulator drives the adjustable ring motion is in order to right the camera lens is adjusted, control device includes: a user interface and a processor;

the user interface is used for receiving a calibration instruction;

the processor is used for sending a control instruction to the regulator after the user interface receives the calibration instruction, wherein the control instruction is used for controlling the regulating gear on the regulator to rotate so as to drive the regulating ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; establishing a mapping between the rotational stroke interval and a calibrated adjustment interval of a control assembly comprised by the user interface for adjusting the adjustment ring on the basis of the mapping.

13. The control device of claim 12, wherein the processor is configured to obtain a first travel interval in the adjustment ring between a first limit point and a second limit point, and to determine the first travel interval as a rotational travel interval; the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate.

14. The control apparatus of claim 13, wherein the processor is configured to control an adjustment gear of the adjuster to move the adjustment ring to determine a first limit point of the adjustment ring; after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point; and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

15. The control device according to claim 14, characterized in that when the torque parameter of the power assembly connected with the adjusting gear meets a preset condition in the process that the adjusting gear of the adjuster drives the adjusting ring to move, the current rotating stroke point of the adjusting gear is recorded as a first limit point or a second limit point of the adjusting ring; wherein, the torque parameter of the power component connected with the adjusting gear meets the preset condition and comprises the following steps: the torque parameter of the power assembly connected with the adjusting gear is larger than a torque threshold value, or the torque parameter of the power assembly connected with the adjusting gear is larger than the torque threshold value and the duration is larger than a duration threshold value.

16. The control apparatus of claim 12, wherein the processor is configured to obtain a second travel interval in the adjustment ring between the first travel point and a second travel point, the second travel interval being determined as a rotational travel interval; the first stroke point and the second stroke point are detected in the process that the regulator drives the adjusting ring to rotate.

17. The control apparatus according to claim 16, wherein a stroke point at which the adjustment gear is currently rotated when the first confirmation instruction is received is regarded as a first stroke point, and a stroke point at which the adjustment gear is currently rotated when the second confirmation instruction is received is regarded as a second stroke point.

18. The control apparatus according to claim 16 or 17, wherein a stroke point at which the adjustment gear is currently rotated is determined and fed back by the adjuster in accordance with a stroke amount of the adjustment gear.

19. The control device of claim 12, wherein the calibration adjustment interval of the control component comprises: an adjustment interval between an initial adjustment point and an end adjustment point of the control assembly.

20. The control device of claim 12, wherein the calibration adjustment interval of the control component comprises: a regulation interval between a first regulation point and a second regulation point between an initial regulation point and an end regulation point of the control assembly.

21. The control device of claim 20, wherein the adjustment point at which the control assembly is currently rotating upon receipt of the third confirmation command is recorded as the first adjustment point after receipt of the calibration command; when a fourth confirmation instruction is received, the current rotating adjusting point of the control component is marked as a second adjusting point.

22. A control system for controlling a camera lens, said camera comprising a viewing lens and an adjustment ring for adjusting the viewing lens, said system comprising: the adjuster is in transmission fit with the adjusting ring, and the controller drives the adjusting ring to move by controlling the adjuster so as to adjust the viewing lens;

the controller is used for sending a control instruction to the regulator after receiving the calibration instruction, and the control instruction is used for controlling the regulating gear on the regulator to rotate so as to drive the regulating ring to rotate; acquiring a rotation stroke interval of the adjusting ring in the process of rotating under the driving of the adjuster; and establishing a mapping relation between the rotation stroke interval and a calibration adjusting interval of a control assembly on the controller so that the controller can adjust the adjusting ring according to the mapping relation.

23. The control system of claim 22, wherein the controller is configured to obtain a first travel interval in the adjustment ring between a first limit point and a second limit point, and determine the first travel interval as a rotational travel interval; the first limiting point and the second limiting point are detected in the process that the regulator drives the adjusting ring to rotate.

24. The control system of claim 23, wherein the controller is configured to control an adjustment gear of the adjuster to move the adjustment ring to determine a first limit point of the adjustment ring; after the first limit point is determined, controlling an adjusting gear on the adjuster to rotate reversely to drive the adjusting ring to move and determine a second limit point; and determining the stroke interval of the adjusting ring according to the stroke of the adjusting gear rotating from the first limit point to the second limit point.

25. The control system according to claim 24, characterized in that when the torque parameter of the power assembly connected with the adjusting gear meets a preset condition in the process that the adjusting gear of the adjuster drives the adjusting ring to move, the current rotating stroke point of the adjusting gear is recorded as a first limit point or a second limit point of the adjusting ring; wherein, the torque parameter of the power component connected with the adjusting gear meets the preset condition and comprises the following steps: the torque parameter of the power assembly connected with the adjusting gear is larger than a torque threshold value, or the torque parameter of the power assembly connected with the adjusting gear is larger than the torque threshold value and the duration is larger than a duration threshold value.

26. The control system of claim 22, wherein the controller is configured to obtain a second travel interval in the adjustment ring between the first travel point and a second travel point, the second travel interval being determined as a rotational travel interval; the first stroke point and the second stroke point are detected in the process that the regulator drives the adjusting ring to rotate.

27. The control system of claim 26, wherein a point of travel at which the adjustment gear is currently rotating when a first confirmation command is received is designated as a first point of travel, and a point of travel at which the adjustment gear is currently rotating when a second confirmation command is received is designated as a second point of travel.

28. The control system according to claim 26 or 27, wherein the stroke point at which the regulating gear is currently rotated is determined and fed back by the regulator based on the stroke amount of the regulating gear.

29. The control system of claim 22, wherein the calibration adjustment interval of the control assembly comprises: an adjustment interval between an initial adjustment point and an end adjustment point of the control assembly.

30. The control system of claim 22, wherein the calibration adjustment interval of the control assembly comprises: a regulation interval between a first regulation point and a second regulation point between an initial regulation point and an end regulation point of the control assembly.

31. The control system of claim 30, wherein upon receiving the calibration command, the adjustment point at which the control assembly is currently rotating upon receiving the third confirmation command is designated as the first adjustment point; when a fourth confirmation instruction is received, the current rotating adjusting point of the control component is marked as a second adjusting point.