Control method and device and readable storage medium

Abstract

The invention relates to the technical field of driving, and discloses a control method, equipment and a readable storage medium. According to the method, when the electronic equipment detects that at least one actuating wire of the SMA motor is disconnected, the electronic equipment can control the carrier of the SMA motor to move relative to the fixed part through at least part of actuating wires (hereinafter referred to as target actuating wires) in the undisconnected actuating wires, the resultant force direction of the target actuating line acting on the carrier is the same as the direction of driving the carrier to move. Thus, even if an actuating line in the SMA motor in the electronic equipment is disconnected, the electronic equipment can drive the carrier to move through the undisconnected actuating line.

Description

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 29, 2023, with application number 202311103420.8 and application name “Control Method, Device and Readable Storage Medium”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present application relates to the field of drive technology, and in particular to a control method, device and readable storage medium. Background Art

[0003] Shape memory alloy (SMA) motor refers to a motor that uses shape memory alloy as a driving material. In an SMA motor, the fixed part and the carrier of the SMA motor are connected by multiple actuating wires made of multiple shape memory alloys. The electronic device can control the movement of the carrier relative to the fixed part by controlling the contraction of each actuating wire. For example, in a camera module of an electronic device, the lens in the camera is usually set on the carrier of the SMA motor. The electronic device can control the contraction of the actuating wire in the SMA motor to control the movement of the lens along the optical axis of the lens to achieve the focus of the camera, or control the movement of the lens in a plane perpendicular to the optical axis of the lens to achieve the anti-shake function of the camera.

[0004] Generally speaking, the movement of the carrier in a SMA motor relative to the fixed part in one direction is achieved by the contraction of multiple actuating wires connected end to end. If one or more of the multiple actuating wires are disconnected (for example, broken, or unable to contract normally), the SMA motor will be unable to control the movement of the carrier in that direction. Summary of the invention

[0005] In view of this, the present application provides a control method, a device and a readable storage medium.

[0006] In a first aspect, an embodiment of the present application provides a control method, which is applied to an electronic device, wherein the electronic device includes a shape memory alloy motor, wherein a fixed portion and a carrier of the shape memory alloy motor are connected via N actuating wires, wherein one end of the actuating wire is connected to the carrier, and the other end is connected to the fixed portion, and when the actuating wire contracts, the carrier is driven to move relative to the fixed portion, the method comprising: detecting a first operation of a user, wherein the first operation is used to instruct the carrier to move in a first direction; when L actuating wires among the N actuating wires are disconnected, and K actuating wires among the NL actuating wires that are not disconnected contract, the direction of the resultant force acting on the carrier is the same as the first direction, and the K actuating wires are used to drive the carrier to move in the first direction.

[0007] That is to say, when the electronic device needs to control the carrier to move along the first direction, if L of the N actuating wires are disconnected, and there are K actuating wires among the NL actuating wires that are not disconnected, and the direction of the resultant force acting on the carrier when the actuating wires are contracted is the same as the first direction, the electronic device can still use K actuating wires to drive the carrier to move along the first direction.

[0008] In a possible implementation of the first aspect, the shape memory alloy motor is disposed in a camera of an electronic device, and a lens of the camera is disposed on a carrier.

[0009] In this way, since the movement of the carrier can drive the movement of the lens, even if the actuating line in the shape memory alloy motor is disconnected, the electronic device can still control the lens to move along the first direction, so that the electronic device can at least retain at least some of the focusing function and the anti-shake function.

[0010] In a possible implementation of the first aspect, the N actuation lines include P actuation lines whose direction of the component of the force acting on the carrier in the first reference direction when contracted is the positive direction of the first reference direction, and NP actuation lines whose direction of the component of the force acting on the carrier in the first reference direction when contracted is the opposite direction of the first reference direction, wherein the first reference direction is the same as the optical axis direction of the lens; and K actuation lines are used to drive the carrier to move along the first direction, including: under the following conditions, K actuation lines are selected from the NL actuation lines that have not been disconnected, and the K actuation lines are used to drive the carrier to move along the first direction: when at least two of the P actuation lines are not disconnected, and when all of the P actuation lines that are not disconnected are contracted, the direction of the resultant force acting on the carrier is along the negative direction of the first reference direction; and when at least two of the NP actuation lines are not disconnected, and when all of the NP actuation lines that are not disconnected are contracted, the direction of the resultant force acting on the carrier is along the positive direction of the first reference direction.

[0011] Exemplarily, the P actuation wires may be actuation wires in the positive tension actuation wire group hereinafter, and the NP actuation wires may be actuation wires in the negative tension actuation wire group hereinafter.

[0012] That is, in some implementations, the electronic device may use K actuating wires to drive the carrier to move along the first direction only when the following wire breakage control condition is satisfied.

[0013] In a possible implementation of the first aspect, the shape memory alloy motor includes a first reference plane, a second reference plane, a third reference plane and a fourth reference plane parallel to the first reference direction, wherein the first reference plane and the third reference plane are symmetrically arranged relative to the center of the carrier and parallel to the second reference direction, the second reference plane and the fourth reference plane are symmetrically arranged relative to the center of the carrier and parallel to the third reference direction, and the first reference direction, the second reference direction and the third reference direction are perpendicular to each other; P actuation lines include a first actuation line, a third actuation line, a fifth actuation line and a seventh actuation line respectively arranged on the first reference plane, the second reference plane, the third reference plane and the fourth reference plane, and NP actuation lines include a second actuation line, a fourth actuation line, a sixth actuation line and an eighth actuation line respectively arranged on the first reference plane, the second reference plane, the third reference plane and the fourth reference plane; wherein the force acting on the carrier when the first actuation line contracts includes a component in the negative direction of the first reference direction and a component in the negative direction of the second reference direction. when the second actuating wire contracts, the force acting on the carrier includes a component in the positive direction of the first reference direction and a component in the negative direction of the second reference direction; when the third actuating wire contracts, the force acting on the carrier includes a component in the negative direction of the first reference direction and a component in the positive direction of the third reference direction; when the fourth actuating wire contracts, the force acting on the carrier includes a component in the positive direction of the first reference direction and a component in the positive direction of the third reference direction; when the fifth actuating wire contracts, the force acting on the carrier includes a component in the negative direction of the first reference direction and a component in the positive direction of the second reference direction; when the sixth actuating wire contracts, the force acting on the carrier includes a component in the positive direction of the first reference direction and a component in the positive direction of the second reference direction; when the seventh actuating wire contracts, the force acting on the carrier includes a component in the negative direction of the first reference direction and a component in the negative direction of the third reference direction; when the eighth actuating wire contracts, the force acting on the carrier includes a component in the positive direction of the first reference direction and a component in the negative direction of the third reference direction.

[0014] That is, when 2 to 4 of the eight actuation wires of the shape memory alloy are disconnected, the electronic device can select at least some of the actuation wires from the remaining actuation wires that are not disconnected to control the movement of the carrier along the first direction.

[0015] Exemplarily, the first reference direction, the second reference direction and the third reference direction may be the Z direction, the Y direction and the X direction mentioned below, respectively; the first reference plane, the second reference plane, the third reference plane and the fourth reference plane may be the left side plane, the front side plane, the right side plane and the rear side plane mentioned below, respectively; the first to eighth actuation lines may be the actuation lines L1 to L8 mentioned below, respectively.

[0016] In a possible implementation of the first aspect, the selecting K actuation lines from the NL actuation lines that have not been disconnected comprises: when at least one of the first actuation line and the fifth actuation line is disconnected, and at least one of the second actuation line and the sixth actuation line is disconnected, determining at least some of the third actuation line, the fourth actuation line, the seventh actuation line, and the eighth actuation line as the K actuation lines; or when at least one of the first actuation line and the fifth actuation line is disconnected, and at least one of the fourth actuation line and the eighth actuation line is disconnected, determining the second actuation line, the third actuation line, the sixth actuation line, the eighth ... At least some of the seven actuation lines are K actuation lines; or when at least one of the third actuation line and the seventh actuation line is disconnected, and at least one of the second actuation line and the sixth actuation line is disconnected, at least some of the first actuation line, the fourth actuation line, the fifth actuation line, and the eighth actuation line are determined to be K actuation lines; or when at least one of the third actuation line and the seventh actuation line is disconnected, and at least one of the fourth actuation line and the eighth actuation line is disconnected, at least some of the first actuation line, the second actuation line, the fifth actuation line, and the sixth actuation line are determined to be K actuation lines.

[0017] In a possible implementation of the first aspect, when at least one of the first actuation line and the fifth actuation line is disconnected, and at least one of the second actuation line and the sixth actuation line is disconnected, determining at least some of the third actuation line, the fourth actuation line, the seventh actuation line, and the eighth actuation line as K actuation lines includes: corresponding to the first direction being the positive direction of the first reference direction, determining the fourth actuation line and the eighth actuation line as K actuation lines; or corresponding to the first direction being the negative direction of the first reference direction, determining the third actuation line and the seventh actuation line as K actuation lines; or Corresponding to the first direction being the positive direction of the third reference direction, the third actuation line and the fourth actuation line are determined to be K actuation lines; or corresponding to the first direction being the negative direction of the third reference direction, the seventh actuation line and the eighth actuation line are determined to be K actuation lines; or corresponding to the first direction being the positive direction of the second reference direction and the sixth actuation line is not disconnected, the third actuation line, the sixth actuation line and the seventh actuation line are determined to be K actuation lines; or corresponding to the first direction being the negative direction of the second reference direction and the second actuation line is not disconnected, the second actuation line, the third actuation line and the seventh actuation line are determined to be K actuation lines.

[0018] In a possible implementation of the first aspect, when at least one of the first actuation line and the fifth actuation line is disconnected, and at least one of the fourth actuation line and the eighth actuation line is disconnected, determining at least part of the second actuation line, the third actuation line, the sixth actuation line, and the seventh actuation line as K actuation lines includes: corresponding to the first direction being the positive direction of the first reference direction, determining the second actuation line and the sixth actuation line as K actuation lines; or corresponding to the first direction being the negative direction of the first reference direction, determining the third actuation line and the seventh actuation line as K actuation lines. ; or corresponding to the first direction being the positive direction of the third reference direction, the second actuation line, the third actuation line and the sixth actuation line are determined to be K actuation lines; or corresponding to the first direction being the negative direction of the third reference direction, the second actuation line, the sixth actuation line and the seventh actuation line are determined to be K actuation lines; or corresponding to the first direction being the positive direction of the second reference direction, the third actuation line, the sixth actuation line and the seventh actuation line are determined to be K actuation lines; or corresponding to the first direction being the negative direction of the second reference direction, the second actuation line, the third actuation line and the seventh actuation line are determined to be K actuation lines.

[0019] In a possible implementation of the first aspect above, the first operation above includes any one of the following operations: an operation of a user starting an electronic device; an operation of a user adjusting the focal length of a camera; an operation of a user moving an electronic device; an operation of a user starting a camera.

[0020] In a possible implementation of the first aspect above, the above-mentioned detection of the first operation of the user includes: when the first operation is an operation of the user starting an electronic device, determining the first direction based on the current position of the carrier and the preset position of the carrier; when the first operation is an operation of the user adjusting the focal length of the camera, determining the first direction based on the current focal length of the camera and the focal length set by the user; when the first operation is an operation of the user moving the electronic device, determining the first direction according to the second direction in which the user moves the electronic device; when the first operation is an operation of the user starting a camera, determining the first direction based on the focal length of the camera capturing an image.

[0021] In a possible implementation of the first aspect, the K is less than or equal to 4.

[0022] That is, the electronic device can control the carrier to move along the first direction based on at most four actuation wires.

[0023] In a possible implementation of the first aspect, the method further includes: when none of the N actuating wires is disconnected, using M actuating wires among the N actuating wires to drive the carrier to move along the first direction, wherein the M actuating wires include at least one actuating wire among the L actuating wires.

[0024] In a second aspect, an embodiment of the present application provides a readable storage medium, which includes instructions. When the instructions are executed by an electronic device, the electronic device implements the control method provided by the first aspect and any possible implementation of the first aspect.

[0025] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a shape memory alloy motor; a memory for storing instructions; and a processor for executing instructions so that the electronic device controls the shape memory alloy motor through the control method provided by the first aspect and any possible implementation of the first aspect.

[0026] In a fourth aspect, an embodiment of the present application provides a program product, which, when running on an electronic device, enables the electronic device to implement the control method provided in the first aspect and any possible implementation of the first aspect.

[0027] It should be understood that the technical effects of the second to fourth aspects mentioned above can refer to the description of the first direction mentioned above and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1A According to some embodiments of the present application, a schematic diagram of a camera module in a mobile phone 1 is shown;

[0029] Figure 1B According to some embodiments of the present application, a cross-sectional view of the area where the camera 5 is located along the AA direction is shown;

[0030] Figure 2 According to some embodiments of the present application, a schematic diagram of the connection relationship between the fixing portion 51, the carrier 53, and the actuating wire group 54 is shown;

[0031] Figure 3 According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the Z axis is shown;

[0032] Figure 4 According to some embodiments of the present application, a schematic diagram of a situation in which an SMA actuating wire is disconnected is shown;

[0033] Figure 5A According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the Z axis when the actuation line L8 and / or the actuation line L4 is disconnected is shown;

[0034] Figure 5B According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move negatively along the Z axis when the actuation line L8 and / or the actuation line L4 are disconnected is shown;

[0035] Figure 6According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the negative direction of the Y axis when the actuation line L8 and / or the actuation line L4 is disconnected is shown;

[0036] Figure 7 According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the Y axis when the actuation line L8 and / or the actuation line L4 is disconnected is shown;

[0037] Fig. 8A According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the X-axis when the actuation line L8 and / or the actuation line L4 is disconnected is shown;

[0038] Figure 8B According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the negative direction of the X-axis when the actuation line L8 and / or the actuation line L4 is disconnected is shown;

[0039] Fig.9A According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the Z axis is shown in a situation where at least one of the actuating line L8 and the actuating line L4 is disconnected and at least one of the actuating line L7 and the actuating line L3 is disconnected;

[0040] Fig. 9B According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the negative direction of the Z axis is shown in a situation where at least one of the actuation line L8 and the actuation line L4 is disconnected and at least one of the actuation line L7 and the actuation line L3 is disconnected;

[0041] Fig. 10A According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the Z axis is shown in a situation where at least one of the actuating line L8 and the actuating line L4 is disconnected and at least one of the actuating line L5 and the actuating line L1 is disconnected;

[0042] Fig. 10B According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the negative direction of the Z axis is shown in a situation where at least one of the actuation line L8 and the actuation line L4 is disconnected and at least one of the actuation line L5 and the actuation line L1 is disconnected;

[0043] Fig. 10C According to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the positive direction of the Y axis is shown in a situation where at least one of the actuating line L8 and the actuating line L4 is disconnected and at least one of the actuating line L5 and the actuating line L1 is disconnected;

[0044] Fig. 10DAccording to some embodiments of the present application, a schematic diagram of controlling the carrier 53 to move along the negative direction of the Y axis is shown in a situation where at least one of the actuating line L8 and the actuating line L4 is disconnected and at least one of the actuating line L5 and the actuating line L1 is disconnected;

[0045] Fig.11 According to some embodiments of the present application, a flow chart of a control method is shown;

[0046] Fig.12 According to some embodiments of the present application, a structural schematic diagram of a mobile phone 1 is shown. DETAILED DESCRIPTION

[0047] Illustrative embodiments of the present application include, but are not limited to, control methods, devices, and readable storage media.

[0048] It should be understood that the control method provided in the embodiment of the present application is applicable to any scenario of controlling the SMA motor. For ease of description, the technical solution of the present application is introduced below by taking the SMA motor in the camera as an example.

[0049] It should be understood that the control method provided in the embodiments of the present application is applicable to any electronic device equipped with an SMA motor or capable of controlling an SMA motor, including but not limited to mobile phones, tablet computers, wearable devices (such as smart watches, smart bracelets), smart home devices (such as smart TVs, smart speakers, etc.), Internet of Things devices, pan / tilts, cameras, and cameras, etc., without limitation. For ease of description, the following embodiments take the mobile phone as an example to introduce the technical solution of the present application.

[0050] Figure 1A According to some embodiments of the present application, a schematic diagram of a camera module in a mobile phone 1 is shown.

[0051] As shown in FIG. 1 , a mobile phone 1 includes a camera module 2 , and the camera module 2 includes four cameras (eg, camera 3 , camera 4 , camera 5 , and camera 6 ).

[0052] It should be understood that an SMA motor is configured in one or more of the cameras 3, 4, 5, and 6. The following description will be made by taking the camera 5 configured with the SMA motor as an example.

[0053] Figure 1B According to some embodiments of the present application, a schematic cross-sectional view of the area where the camera 5 is located along the AA direction is shown.

[0054] like Figure 1B As shown, the camera 5 includes an image sensor 12 and an SMA motor 51. The SMA motor 51 includes a fixing portion 52 and a carrier 53 on which a lens is mounted. The fixing portion 52 and the carrier 53 are connected via an actuating wire set 54.

[0055] The image sensor 12, the carrier 53, and the housing 13 of the mobile phone 1 are arranged along the optical axis of the camera 5 ( Figure 1B The Z direction shown in the figure) are arranged in sequence at intervals.

[0056] The fixing portion 52 and the image sensor 12 are fixed on the circuit board 11. In other words, the fixing portion 52 and the image sensor 12 remain relatively fixed.

[0057] The carrier 53 can move along the optical axis of the camera 5, or in a plane perpendicular to the optical axis (for example Figure 1B The device can move within the XY plane shown in the figure, and can also move in other directions through motion synthesis.

[0058] The mobile phone 1 can control the carrier 53 to move along the optical axis of the camera 5 by controlling the contraction of the actuating wires in the actuating wire group 54, thereby controlling the lens disposed on the carrier 53 to move along the optical axis of the camera 5 to achieve the focus function of the camera 5. The mobile phone 1 can also control the carrier 53 to move in a plane perpendicular to the optical axis of the camera 5 by controlling the contraction of the actuating wires in the actuating wire group 54 to achieve the anti-shake function of the camera 5.

[0059] further, Figure 2 According to some embodiments of the present application, a schematic diagram of the connection relationship between the fixing portion 51 , the carrier 53 , and the actuating wire set 54 is shown.

[0060] like Figure 2 As shown, the actuation wire group 54 includes 8 independent actuation wires, namely, actuation wire L1, actuation wire L2, actuation wire L3, actuation wire L4, actuation wire L5, actuation wire L6, actuation wire L7, and actuation wire L8. One end of each actuation wire in the actuation wire group 54 is connected to the fixing portion 51, and the other end is connected to the carrier 53. Each actuation wire in the actuation wire group 54 can contract when the temperature exceeds the temperature threshold (for example, when a voltage or current is applied to both ends of the actuation wire so that the temperature of the actuation wire exceeds the temperature threshold), so as to pull the carrier 53 to move.

[0061] For example, in some embodiments, the carrier 53 can be approximately regarded as a cuboid. Figure 2 The coordinate system XYZ is shown, wherein the Z direction is the optical axis direction of the camera 5, and the XY plane where the X axis and the Y axis are located is perpendicular to the Z axis. In addition, the two side surfaces of the carrier 53 perpendicular to the X axis direction are referred to as the left side surface and the right side surface, the two side surfaces of the carrier 53 perpendicular to the Y axis direction are referred to as the front side surface and the rear side surface, and the two side surfaces of the carrier 53 perpendicular to the Z axis are referred to as the top surface and the bottom surface.

[0062] In some embodiments, two actuation lines may be respectively disposed on the four sides of the carrier 53, and the two actuation lines disposed on each side are cross-disposed. Specifically:

[0063] In some embodiments, the actuation line L1 and the actuation line L2 are arranged on the left side of the carrier 53. One end of L1 is connected to the connection point A1 on the fixed portion 51, and the other end is connected to the connection point A2 on the carrier 53. One end of the actuation line L2 is connected to the connection point B1 on the fixed portion 51, and the other end is connected to the connection point B2 on the carrier 53. Among them, the connection points A1, B1, A2, and B2 are respectively close to the four vertices of the left side, the connection points A1 and B1 are arranged axially along the Z axis, and the connection point A1 is close to the bottom surface of the carrier 53, the connection points A2 and B2 are arranged axially along the Z axis, and the connection point B2 is close to the bottom surface of the carrier 53. When the actuation line L1 contracts, the force acting on the carrier 53 includes a component along the negative direction of the Z axis and a component along the negative direction of the Y axis, and when the actuation line L2 contracts, the force acting on the carrier 53 includes a component along the positive direction of the Z axis and a component along the negative direction of the Y axis.

[0064] In some embodiments, the actuation line L3 and the actuation line L4 are arranged on the front side of the carrier 53. One end of L3 is connected to the connection point C1 on the fixed part 51, and the other end is connected to the connection point C2 on the carrier 53. One end of the actuation line L4 is connected to the connection point D1 on the fixed part 51, and the other end is connected to the connection point D2 on the carrier 53. Among them, the connection points C1, D1, C2, and D2 are respectively close to the four vertices of the front side, the connection points C1 and D1 are arranged axially along the Z axis, and the connection point C1 is close to the bottom surface of the carrier 53, the connection points C2 and D2 are arranged axially along the Z axis, and the connection point D2 is close to the bottom surface of the carrier 53. When the actuation line L3 contracts, the force acting on the carrier 53 includes a component along the negative direction of the Z axis and a component along the positive direction of the X axis. When the actuation line L4 contracts, the force acting on the carrier 53 includes a component along the positive direction of the Z axis and a component along the positive direction of the X axis. Furthermore, the connection points C2 and D2 are arranged near the same side of the carrier 53 as are the connection points A2 and B2.

[0065] In some embodiments, the actuation line L5 and the actuation line L6 are arranged on the right side of the carrier 53. One end of L5 is connected to the connection point E1 on the fixed portion 51, and the other end is connected to the connection point E2 on the carrier 53. One end of the actuation line L6 is connected to the connection point F1 on the fixed portion 51, and the other end is connected to the connection point F2 on the carrier 53. Among them, the connection points E1, F1, E2, and F2 are respectively close to the four vertices of the right side, the connection points E1 and F1 are arranged axially along the Z axis, and the connection point E1 is close to the bottom surface of the carrier 53, the connection points E2 and F2 are arranged axially along the Z axis, and the connection point F2 is close to the bottom surface of the carrier 53. When the actuation line L5 contracts, the force acting on the carrier 53 includes a component along the negative direction of the Z axis and a component along the positive direction of the Y axis, and when the actuation line L6 contracts, the force acting on the carrier 53 includes a component along the positive direction of the Z axis and a component along the positive direction of the Y axis. Furthermore, the connection points E1 and F1 are disposed near the same side of the carrier 53 as are the connection points C1 and D1.

[0066] In some embodiments, the actuation line L7 and the actuation line L8 are disposed on the rear side surface of the carrier 53. One end of L7 is connected to the connection point G1 on the fixed portion 51, and the other end is connected to the connection point G2 on the carrier 53. One end of the actuation line L8 is connected to the connection point H1 on the fixed portion 51, and the other end is connected to the connection point H2 on the carrier 53. Among them, the connection points G1, H1, G2, and H2 are respectively close to the four vertices of the rear side surface, the connection points G1 and H1 are arranged axially along the Z axis, and the connection point G1 is close to the bottom surface of the carrier 53, the connection points G2 and H2 are arranged axially along the Z axis, and the connection point H2 is close to the bottom surface of the carrier 53. When the actuation line L7 contracts, the force acting on the carrier 53 includes a component along the negative direction of the Z axis and a component along the negative direction of the X axis, and when the actuation line L8 contracts, the force acting on the carrier 53 includes a component along the positive direction of the Z axis and a component along the negative direction of the X axis. Furthermore, the connection points G2 , H2 , E2 , and F2 are disposed near the same side of the carrier 53 .

[0067] In some embodiments, the connection structure further includes an elastic device that can provide the carrier with restoring force in six degrees of freedom. Under the action of the elastic device, the actuating wire that is not contracted or not applied with current / voltage can be stretched under the action of the elastic device or other actuating wires to maintain the force balance of the carrier.

[0068] In some embodiments, when the actual structure of the carrier 53 is not a cuboid, a first reference plane, a second reference plane, a third reference plane, and a fourth reference plane parallel to the Z axis can be established, wherein the first reference plane and the third reference plane are symmetrically arranged relative to the center of the carrier 53 and parallel to the Y axis, and the second reference plane and the fourth reference plane are symmetrically arranged relative to the center of the carrier and parallel to the X axis. In this way, the first reference plane, the second reference plane, the third reference plane, and the fourth reference plane can form four faces of a cuboid (corresponding to the aforementioned left side, front side, right side, and rear side, respectively). At this time, the actuation lines L1 to L8 can be arranged on the first reference plane, the second reference plane, the third reference plane, and the fourth reference plane. The arrangement of the actuation lines L1 to L8 on the first reference plane, the second reference plane, the third reference plane, and the fourth reference plane can refer to the arrangement of the actuation lines L1 to L8 on the left side, the front side, the right side, and the rear side, which will not be repeated here.

[0069] It should be understood that Figure 2 The connection structure shown is only an example. In some embodiments, the left side, right side, front side, and rear side mentioned above may be virtual planes rather than actual surfaces, which is not limited here.

[0070] based on Figure 2 In the connection structure shown, the mobile phone 1 can control the contraction of each actuating wire by inputting different control signals to each actuating wire (for example, applying different voltages or currents or control signals to the actuating wire, or not applying voltage or current), thereby pulling the carrier 53 to move. For example, the carrier 53 can be pulled to move along the Z-axis direction to control the focus of the camera 5, or the carrier 53 can be pulled to move in a plane perpendicular to the Z-axis to control the anti-shake of the camera 5, or the carrier 53 can be pulled to move along other directions to adjust shooting parameters, etc.

[0071] For example, reference Figure 3 , the mobile phone 1 can control the actuation lines L2, L4, L6, and L8 to contract with the same amplitude to control the carrier 53 to move along the positive direction of the Z axis. When the actuation lines L2, L4, L6, and L8 contract with the same amplitude, the components of the forces acting on the carrier 53 by the actuation lines L2 and L6 in the Y direction cancel each other out, and the components of the forces acting on the carrier 53 by the actuation lines L4 and L8 in the X direction cancel each other out. In other words, the resultant force F acting on the carrier 53 by the actuation lines L2, L4, L6, and L8 is equal to 0. Z The direction is along the positive direction of the Z axis. Since the connection point B1, the connection point D1, the connection point F1 and the connection point H1 are fixed on the fixing part 52, the connection point B2, the connection point D2, the connection point F2 and the connection point H2 will move along the positive direction of the Z axis under the action of Fz, so that the carrier 53 moves along the positive direction of the Z axis.

[0072] However, when one or more of the actuating wires L2, L4, L6, and L8 are disconnected, if the actuating wires L2, L4, L6, and L8 are still controlled to contract with the same amplitude, the direction of the resultant force of the actuating wires L2, L4, L6, and L8 acting on the carrier 53 will not be along the Z-axis direction. Figure 4 When the actuation line L8 is disconnected, the actuation lines L2, L4 and L6 contract at the same amplitude, which will cause the combined force of the actuation lines L2, L4 and L6 acting on the carrier 53 to have a component in the positive direction of the X axis (i.e., the component of the force of the actuation line L3 acting on the carrier 53 in the positive direction of the X axis). In this way, the mobile phone 1 cannot accurately control the movement of the carrier 53 along the Z axis, causing the focus function and anti-shake function of the camera 5 to fail.

[0073] In order to ensure that the electronic device can still accurately control the movement of the carrier in the SMA motor when the actuation wires in the SMA motor are disconnected, an embodiment of the present application provides a control method. When the actuation wires in the SMA motor of the electronic device are not disconnected and the carrier needs to be controlled to move along the first direction, the carrier in the SMA motor can be controlled to move relative to the fixed part along the first direction through N actuation wires. When L (L≥1) actuation wires among the N actuation wires of the electronic device are disconnected and the carrier needs to be controlled to move along the first direction, K (K≥2) actuation wires whose direction of the resultant force acting on the carrier during contraction is along the first direction (hereinafter referred to as the target actuation wires) can be selected from the undisconnected actuation wires. Then, the electronic device can control the carrier of the SMA motor to move relative to the fixed part along the first direction based on the selected K actuation wires.

[0074] Thus, even if an actuation line in the SMA motor in the electronic device is disconnected, if there is a target actuation line whose direction of the resultant force acting on the carrier during contraction is the same as the first direction, the electronic device can drive the carrier to move along the first direction through the target actuation line.

[0075] In some embodiments, the electronic device may determine the first direction of movement of the carrier in the SMA motor of the electronic device in response to a first operation of the user.

[0076] Exemplarily, the first operation may include an operation of a user starting an electronic device, an operation of a user starting a camera (such as starting a camera application or other application that requires calling a camera), an operation of a user moving an electronic device, an operation of a user adjusting the focus of the electronic device, etc.

[0077] For example, the electronic device may determine the first direction according to the preset target position of the carrier relative to the fixing portion and the current position of the carrier in response to the user starting the operation of the electronic device. Exemplarily, the position of the carrier relative to the fixing portion preset by the electronic device is the first position, and the current position of the carrier is the second position, then the direction from the second position to the first position may be the first direction.

[0078] For another example, the electronic device can determine the shooting focal length to be adopted according to the image captured by the camera according to the operation of starting the camera by the user, and determine the first direction according to the determined focal length and the current focal length of the camera. Exemplarily, the electronic device determines through an autofocus algorithm that the carrier position corresponding to the focal length of the image captured by the camera is the first position, and the current position of the carrier is the second position, then the direction from the second position to the first position can be the first direction.

[0079] For another example, the electronic device may determine the first direction of the mobile carrier in response to the user adjusting the camera focus operation according to the focal length adjustment method (increasing the focal length or decreasing the focal length). Exemplarily, the carrier position corresponding to the focal length set by the user is the first position, and the current position of the carrier is the second position, then the direction from the second position to the first position may be the first direction.

[0080] For another example, the electronic device may determine, in response to the user moving the electronic device, a direction opposite to the direction in which the user moves the electronic device as a first direction, so as to implement an anti-shake function of a target camera.

[0081] It should be understood that in some embodiments, the first operation may also include other operations, which are not limited here.

[0082] In some embodiments, the first direction may also be determined according to a movement control signal generated in the electronic device (e.g., a movement control signal for moving the carrier along the first direction determined by an application or service in the electronic device when implementing an autofocus function or an anti-shake function according to an image captured by a camera and / or a target to be photographed and / or the movement of the electronic device, etc.). For example, when none of the actuation wires in the SMA motor are disconnected and a first movement control signal for controlling the carrier to move along the first direction is detected, the electronic device may control the carrier in the SMA motor to move relative to the fixed portion along the first direction through N actuation wires. When L (L≥1) actuation wires among the N actuation wires are disconnected and a second movement control signal for controlling the carrier to move along the first direction is detected, the electronic device may select K (K≥2) actuation wires (hereinafter referred to as target actuation wires) from the undisconnected actuation wires, whose directions of the resultant forces acting on the carrier during contraction are along the first direction. Then, the electronic device may control the carrier of the SMA motor to move relative to the fixed portion along the first direction based on the selected K actuation wires.

[0083] For example, for Figure 3 In the situation shown, if none of the actuating wires in the actuating wire group 54 is disconnected, when the mobile phone 1 determines that the carrier 53 needs to be moved along the positive direction of the Z axis (as the first direction) to achieve the focus of the camera 5, it can detect the control signal corresponding to the control of the carrier to the positive direction of the Z axis. Then, the mobile phone 1 can control the actuating wires L2, L4, L6, and L8 (as N actuating wires) to contract with the same amplitude to control the carrier 53 to move along the positive direction of the Z axis. If the actuating wires L8 and / or the actuating wires L4 are disconnected, when the mobile phone 1 determines that the carrier 53 needs to be moved along the positive direction of the Z axis to achieve the focus of the camera 5, it can detect the control signal corresponding to the control of the carrier to the positive direction of the Z axis, and control the actuating wires L2, L6, and L8 (as L actuating wires) to contract with the same amplitude to control the carrier 53 to move along the positive direction of the Z axis.

[0084] In some embodiments, the mobile phone 1 can detect the disconnection of the actuation wires of the SMA motor when it is turned on or when the camera is called for the first time after it is turned on, and determine the L actuation wires to be used when controlling the carrier to move along the first direction. Then, when the mobile phone 1 detects movement in the first direction, the L actuation wires can be directly used to control the carrier to move along the first direction.

[0085] In some embodiments, when the mobile phone 1 needs to control the carrier to move along the first direction, the mobile phone 1 can select L actuation wires to be used to control the carrier to move along the first direction according to the disconnection status of the actuation wires of the SMA motor. Then, the mobile phone 1 drives the carrier to move along the first direction according to the selected L actuation wires.

[0086] In some embodiments, the target actuation line may be at least part of the actuation lines that are not disconnected among the N actuation lines, or other actuation lines different from the N actuation lines, or a combination of the actuation lines that are not disconnected among the N actuation lines and other actuation lines that are not disconnected.

[0087] Next, the electronic device is the aforementioned mobile phone 1, combined with Figure 2 The connection method of the actuating wire, the carrier and the fixing part in the camera 5 shown introduces the technical solution of the present application.

[0088] In some embodiments, when the forces exerted by the actuating lines L1 and L5 on the carrier 53 are decomposed along the Z axis and the XY plane, the forces exerted by the actuating lines L1 and L5 on the carrier 53 have components parallel to each other and opposite in direction in the XY plane, and components in the Z axis direction have the same direction.

[0089] In some embodiments, when the force exerted by the actuating line L3 and the actuating line L7 in the camera 5 on the carrier 53 is decomposed along the Z axis and the XY plane, the components of the force exerted by the actuating line L3 and the actuating line L7 on the carrier 53 in the XY plane are parallel to each other and in opposite directions, and the components in the Z axis direction are in the same direction.

[0090] In some embodiments, when the forces exerted by the actuating lines L2 and L6 on the carrier 53 are decomposed along the Z axis and the XY plane, the forces exerted by the actuating lines L2 and L6 on the carrier 53 have components parallel to each other and opposite in direction in the XY plane, and components in the Z axis direction have the same direction.

[0091] In some embodiments, when the forces exerted by the actuating lines L4 and L8 on the carrier 53 are decomposed along the Z axis and the XY plane, the forces exerted by the actuating lines L4 and L8 on the carrier 53 have components parallel to each other and opposite in direction in the XY plane, and components in the Z axis direction have the same direction.

[0092] For ease of description, when the force acting on the carrier 53 is decomposed along the Z axis and the XY plane, two actuation lines whose components in the XY plane are parallel to each other and in opposite directions and whose components in the Z axis direction are in the same direction are referred to as an actuation line pair. Figure 2 The actuation line L1 and the actuation line L5 are an actuation line pair, the actuation line L3 and the actuation line L7 are an actuation line pair, the actuation line L2 and the actuation line L6 are an actuation line pair, and the actuation line L4 and the actuation line L8 are an actuation line pair.

[0093] It should be understood that when the two actuating wires in an actuating wire pair are contracted with the same amplitude, the direction of the resultant force acting on the carrier 53 is along the Z-axis direction.

[0094] In some embodiments, when the forces acting on the carrier 53 by the actuating wires L1, L3, L5 and L7 are decomposed along the Z axis and the XY plane, the components of the forces acting on the carrier 53 by the actuating wires L1, L3, L5 and L7 in the Z axis direction are all in the positive direction of the Z axis. For ease of description, the actuating wires whose components of the forces acting on the carrier 53 in the Z axis direction are all in the positive direction of the Z axis are referred to as a positive tension actuating wire group.

[0095] In some embodiments, when the forces acting on the carrier 53 by the actuating wires L2, L4, L6 and L8 are decomposed along the Z axis and the XY plane, the components of the forces acting on the carrier 53 by the actuating wires L2, L4, L6 and L8 in the Z axis direction are all in the negative direction of the Z axis. For ease of description, the actuating wires whose components of the forces acting on the carrier 53 in the Z axis direction are all in the negative direction of the Z axis are referred to as negative tension actuating wire groups below.

[0096] It should be understood that in an SMA motor, the positive-tension actuation wire group may include at least one actuation wire pair (e.g., 1, 2, 3, 4, etc.), and the negative-tension actuation wire group may include at least one actuation wire pair (e.g., 1, 2, 3, 4, etc.).

[0097] First, the situation in which the mobile phone 1 controls the movement of the carrier 53 when at least one actuating wire in an actuating wire pair in a positive tension actuating wire group is disconnected is introduced.

[0098] Figure 5A According to some embodiments of the present application, a schematic diagram is shown of a situation in which the mobile phone 1 controls the carrier 53 to move along the positive direction of the Z axis when at least one of the actuating lines L8 and L4 is disconnected.

[0099] refer to Figure 5A , when at least one of the actuating wires L8 and L4 in the camera 5 is disconnected, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Z axis through the actuating wires L2 and L6. For example, when the actuating wires L8 or L4 are disconnected, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Z axis by controlling the actuating wires L2 and L6 to contract with the same amplitude.

[0100] Continue to refer Figure 5A , when the actuating line L2 and the actuating line L6 contract with the same amplitude, the force G3 applied by the actuating line L2 on the carrier 53 has a component G3' in the Y direction (along the negative direction of the Y axis) and a component G3" in the positive direction of the Z axis, and the force G2 applied by the actuating line L6 on the carrier 53 has a component G4' in the Y direction (along the positive direction of the Y axis) and a component G4" in the positive direction of the Z axis. Since the actuating line L2 and the actuating line L6 contract with the same amplitude, G3' and G4' are the same in magnitude and opposite in direction, and the direction of the resultant force applied by the actuating line L2 and the actuating line L6 on the carrier 53 is the positive direction of the Z axis (i.e., the resultant force of G3" and G4"). Since the connection point B1 and the connection point F1 are fixed on the fixed portion 52, the connection point B2 and the connection point F2 move in the positive direction of the Z axis under the action of the force in the positive direction of the Z axis, thereby causing the carrier 53 to move in the positive direction of the Z axis. In this way, the mobile phone 1 can control the carrier 53 to move along the Z-axis direction relative to the image sensor 12 through the actuating wires L2 and L6 to achieve the focusing of the camera 5 .

[0101] It should be understood that Figure 5A In the illustrated situation, since the actuating wires L1, L3, L5 and L7 are not disconnected, the mobile phone 1 can control the carrier 53 to move along the negative direction of the Z axis by one or two actuating wire pairs in the negative tension actuating wire group.

[0102] For example, Figure 5BAccording to some embodiments of the present application, a schematic diagram is shown of a situation in which the mobile phone 1 controls the carrier 53 to move along the negative direction of the Z axis when at least one of the actuation line pairs corresponding to the actuation line L8 and the actuation line L4 is disconnected.

[0103] refer to Figure 5B In some embodiments, the actuation line L1 and the actuation line L5 can be contracted with the same amplitude, and the actuation line L3 and the actuation line L7 can also be contracted with the same amplitude. Since the actuation line L1 and the actuation line L5 are actuation lines in the same actuation line pair and have the same contraction amplitude, the components of the forces acting on the carrier 53 by the actuation line L1 and the actuation line L5 in the Y-axis direction cancel each other out, and the direction of the resultant force is along the negative direction of the Z-axis. Similarly, the actuation line L3 and the actuation line L7 are actuation lines in the same actuation line pair and have the same contraction amplitude, the components of the forces acting on the carrier 53 by the actuation line L1 and the actuation line L5 in the X-axis direction cancel each other out, and the direction of the resultant force is along the negative direction of the Z-axis. Therefore, the direction of the resultant force of the actuation lines L1, L3, L5, and L7 acting on the carrier 53 is along the negative direction of the Z-axis. Since connection points A1, C1, E1 and G1 are fixed on the fixing portion 52, connection points A2, C2, E2 and G2 will move along the negative direction of the Z axis, thereby causing the carrier 53 to move along the negative direction of the Z axis.

[0104] In some embodiments, the mobile phone 1 can also generate a resultant force acting on the carrier 53 along the negative direction of the Z axis by only controlling the actuating wires L1 and L5 to contract with the same amplitude, thereby driving the carrier 53 to move along the negative direction of the Z axis.

[0105] In some embodiments, the mobile phone 1 can also generate a resultant force acting on the carrier 53 along the negative direction of the Z axis by only controlling the actuating wires L3 and L7 to contract with the same amplitude, thereby driving the carrier 53 to move along the negative direction of the Z axis.

[0106] That is, when none of the actuating wires in the multiple actuating wire pairs in the negative tension actuating wire group are disconnected, the mobile phone 1 can control the carrier 53 to move along the negative direction of the Z axis through one or more actuating wire pairs in the multiple actuating wire pairs. Similarly, when none of the actuating wires in the multiple actuating wire pairs in the positive tension actuating wire group are disconnected, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Z axis through one or more actuating wire pairs in the multiple actuating wire pairs.

[0107] exist Figure 5A In the illustrated situation, since the actuating lines L1 , L3 , L5 , and L7 are not disconnected, the mobile phone 1 can still control the carrier 53 to move in a plane perpendicular to the Z axis to achieve the anti-shake function of the camera 5 .

[0108] In some embodiments, for Figure 5A The situation shown, refer to Figure 6 , the mobile phone 1 can control the carrier 53 to move in the negative direction of the Y axis by controlling the actuating lines L1 and L2 to shorten in the same amplitude. In this case, the components of the forces acting on the carrier 53 by the actuating lines L1 and L2 in the Z axis direction cancel each other out. In other words, the direction of the resultant force of the actuating lines L1 and L2 acting on the carrier 53 is along the negative direction of the Y axis. Since the connection point A1 and the connection point B1 are fixed on the fixed part 52, the connection point A2 and the connection point B2 will move in the negative direction of the Y axis under the action of the force in the negative direction of the Y axis, thereby driving the carrier 53 to move in the negative direction of the Y axis.

[0109] In some embodiments, for Figure 5A The situation shown, refer to Figure 7 , the mobile phone 1 can also control the carrier 53 to move in the positive direction of the Y axis by controlling the actuation lines L5 and L6 to shorten. In this case, the components of the forces acting on the carrier 53 by the actuation lines L5 and L6 in the Z axis direction cancel each other out. In other words, the direction of the resultant force of the actuation lines L5 and L6 acting on the carrier 53 is along the positive direction of the Y axis. Since the connection point E1 and the connection point F1 are fixed on the fixed part 52, the connection point E2 and the connection point F2 will move in the positive direction of the Y axis under the action of the force in the positive direction of the Y axis, thereby driving the carrier 53 to move in the positive direction of the Y axis.

[0110] In some embodiments, for Figure 5A The situation shown, refer to Fig. 8A , the mobile phone 1 can control the carrier 53 to move in the positive direction of the X-axis by controlling the actuating lines L2 and L6 to shorten and controlling the actuating line L3 to shorten. In this case, the resultant force of the actuating lines L2 and L6 acting on the carrier 53 is in the positive direction of the Z-axis and cancels out the component of the force of the actuating line L3 acting on the carrier 53 in the negative direction of the Z-axis. In other words, the direction of the resultant force of the actuating lines L2, L6 and L3 acting on the carrier 53 is the component of the force of the actuating line L3 acting on the carrier 53 in the positive direction of the X-axis. Since the connection point B1, the connection point C1 and the connection point F1 are fixed on the fixed part 52, the connection point C2 will move in the positive direction of the X-axis under the action of the component of the force of the actuating line L3 acting on the carrier 53 in the positive direction of the X-axis, thereby driving the carrier 53 to move in the positive direction of the X-axis.

[0111] In some embodiments, for Figure 5A The situation shown, refer to Figure 8B, the mobile phone 1 can control the carrier 53 to move in the negative direction of the X-axis by controlling the actuating lines L2 and L6 to shorten and controlling the actuating line L7 to shorten. In this case, the resultant force of the actuating lines L2 and L6 acting on the carrier 53 is in the positive direction of the Z-axis and cancels out the component of the force of the actuating line L7 acting on the carrier 53 in the negative direction of the Z-axis. In other words, the direction of the resultant force of the actuating lines L2, L6 and L7 acting on the carrier 53 is the component of the force of the actuating line L7 acting on the carrier 53 in the negative direction of the X-axis. Since the connection point B1, the connection point G1 and the connection point F1 are fixed on the fixed part 52, the connection point G2 will move in the negative direction of the X-axis under the action of the component of the force of the actuating line L7 acting on the carrier 53 in the negative direction of the X-axis, thereby driving the carrier 53 to move in the negative direction of the X-axis.

[0112] It should be understood that when at least one of the actuating lines L2 and L6 is disconnected, or at least one of the actuating lines L1 and L5 is disconnected, or at least one of the actuating lines L3 and L7 is disconnected, the way in which the mobile phone 1 controls the movement of the carrier 5 can refer to the situation where at least one of the actuating lines L8 and L4 is disconnected, and no further details are given here.

[0113] Next, a scheme for the mobile phone 1 to control the movement of the carrier 53 is introduced when at least one actuating wire in an actuating wire pair of the positive tension actuating wire group is disconnected and at least one actuating wire in an actuating wire pair of the negative tension actuating wire group is also disconnected.

[0114] Fig.9A According to some embodiments of the present application, a schematic diagram is shown of a situation in which the mobile phone 1 controls the carrier 53 to move along the positive direction of the Z axis when at least one of the actuating lines L8 and L4 is disconnected and at least one of the actuating lines L7 and L3 is disconnected.

[0115] refer to Fig.9A When at least one of the actuating lines L8 and L4 in the aforementioned camera 5 is disconnected, and at least one of the actuating lines L7 and L3 is disconnected, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Z axis through the actuating lines L2 and L6.

[0116] refer to Fig.9A, when at least one of the actuating lines L8 and L4 is disconnected, and at least one of the actuating lines L7 and L3 is disconnected, the mobile phone 1 can control the actuating lines L2 and L6 to contract with the same amplitude to control the carrier 53 to move along the positive direction of the Z axis. In this case, the force G3 applied by the actuating line L2 to the carrier 53 has a component G3' in the Y direction (along the negative direction of the Y axis) and a component G3" in the positive direction of the Z axis, and the force G4 applied by the actuating line L6 to the carrier 53 has a component G4' in the Y direction (along the positive direction of the Y axis) and a component G4" in the positive direction of the Z axis. Since the actuating lines L2 and L6 contract with the same amplitude, the values ​​of G3' and G4' are the same and in opposite directions, and the direction of the combined force of the actuating lines L2 and L6 on the carrier 53 is the positive direction of the Z axis. Since the connection point B1 and the connection point F1 are fixed on the fixing portion 52, the connection point B2 and the connection point F2 move along the positive direction of the Z axis under the action of the force along the positive direction of the Z axis, so that the carrier 53 moves along the positive direction of the Z axis. In this way, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Z axis relative to the image sensor 12 through the actuating lines L2 and L6 to achieve the focus of the camera 5.

[0117] In some embodiments, for Fig.9A In the case shown, the mobile phone 1 can also control the actuation line L1 and the actuation line L5 to contract with the same amplitude to control the carrier 53 to move along the negative direction of the Z axis relative to the image sensor 12 to achieve the focus of the camera 5. Fig. 9B , the force G5 exerted by the actuating line L1 on the carrier 53 has a component G3' in the Y direction (along the negative direction of the Y axis) and a component G5" in the negative direction of the Z axis, and the force G6 exerted by the actuating line L5 on the carrier 53 has a component G6' in the Y direction (along the positive direction of the Y axis) and a component G6" in the negative direction of the Z axis. Since the actuating line L1 and the actuating line L5 contract with the same amplitude, G5' and G6' are the same in magnitude and opposite in direction, and the direction of the resultant force exerted by the actuating line L1 and the actuating line L5 on the carrier 53 is the negative direction of the Z axis. Since the connection point A1 and the connection point E1 are fixed on the fixing part 52, the connection point A2 and the connection point E2 move in the negative direction of the Z axis under the action of the force in the negative direction of the Z axis, thereby causing the carrier 53 to move in the negative direction of the Z axis. In this way, the mobile phone 1 can control the movement of the carrier 53 in the negative direction of the Z axis relative to the image sensor 12 through the actuating line L1 and the actuating line L5, thereby achieving the focus of the camera 5.

[0118] In some embodiments, for Fig.9A In the case shown in FIG. 1 , the mobile phone 1 can control the carrier 53 to move along the negative direction of the Y axis by controlling the actuating line L1 and the actuating line L2 to contract with the same amplitude. For details, please refer to the aforementioned Figure 6 The illustrated embodiments are not described in detail here.

[0119] In some embodiments, for Fig.9A In the situation shown in the figure, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Y axis by controlling the actuating line L5 and the actuating line L6 to contract with the same amplitude. For details, please refer to the aforementioned Figure 7 The illustrated embodiments are not described in detail here.

[0120] In some embodiments, for Fig.9A In the situation shown, when both the actuating line L3 and the actuating line L7 are disconnected, the mobile phone 1 cannot move the carrier 53 in the X direction.

[0121] In some embodiments, for Fig.9A In the situation shown, when the actuation line L7 is disconnected and the actuation line L3 is not disconnected, the mobile phone 1 can control the movement of the carrier 53 along the positive direction of the X axis by controlling the actuation lines L2 and L6 to show a contraction trend and controlling the contraction mode of the actuation line L3. Fig. 8A The illustrated embodiments are not described in detail here.

[0122] In some embodiments, for Fig.9A In the case shown, when the actuation line L3 is disconnected and the actuation line L7 is not disconnected, the mobile phone 1 can control the movement of the carrier 53 along the negative direction of the X axis by controlling the actuation lines L2 and L6 to show a contraction trend and controlling the contraction mode of the actuation line L7. Figure 8B The illustrated embodiments are not described in detail here.

[0123] It should be understood that when at least one of the actuating lines L2 and L6 is disconnected and at least one of the actuating lines L1 and L5 is disconnected, reference can be made to the aforementioned situation where at least one of the actuating lines L8 and L4 is disconnected and at least one of the actuating lines L7 and L3 is disconnected, and no further details will be given here.

[0124] Fig. 10A According to some embodiments of the present application, a schematic diagram is shown of a situation in which the mobile phone 1 controls the carrier 53 to move along the positive direction of the Z axis when at least one of the actuating lines L8 and L4 is disconnected and at least one of the actuating lines L1 and L5 is disconnected.

[0125] like Fig. 10A As shown, when at least one of the actuating wires L8 and L4 is disconnected, and at least one of the actuating wires L1 and L5 is disconnected, the mobile phone 1 can control the actuating wires L2 and L6 to contract with the same amplitude to control the carrier 53 to move along the positive direction of the Z axis. Fig.9A The illustrated embodiments are not described in detail here.

[0126] In some embodiments, for Fig. 10A The situation shown, refer to Fig. 10B , the mobile phone 1 can also control the carrier 53 to move along the negative direction of the Z axis relative to the image sensor 12 by controlling the actuating wire L3 and the actuating wire L7 to contract with the same amplitude, so as to achieve the focus of the camera 5. In this case, the component of the force in the X direction of the actuating wire L3 acting on the carrier 53 and the component of the force in the X direction of the actuating wire L7 acting on the carrier 53 cancel each other out, and the direction of the combined force of the actuating wire L3 and the actuating wire L7 acting on the carrier 53 is the negative direction of the Z axis. Since the connection point C1 and the connection point G1 are fixed on the fixed part 52, the connection point C2 and the connection point G2 move along the negative direction of the Z axis under the action of the force in the negative direction of the Z axis, thereby causing the carrier 53 to move along the negative direction of the Z axis. In this way, the mobile phone 1 can control the carrier 53 to move along the negative direction of the Z axis relative to the image sensor 12 through the actuating wire L3 and the actuating wire L7, so as to achieve the focus of the camera 5.

[0127] In some embodiments, for Fig. 10A In the situation shown in FIG. 1 , the mobile phone 1 can control the carrier 53 to move in the positive direction of the X axis by controlling the actuation lines L2 and L6 to shorten and controlling the actuation line L3 to shorten. Fig. 8A The illustrated embodiments are not described in detail here.

[0128] In some embodiments, for Fig. 10A In the situation shown, the mobile phone 1 can control the carrier 53 to move in the negative direction of the X axis by controlling the actuation lines L2 and L6 to shorten and controlling the actuation line L7 to shorten. Figure 8B The illustrated embodiments are not described in detail here.

[0129] In some embodiments, for Fig. 10A The situation shown, refer to Fig. 10C , the mobile phone 1 can control the carrier 53 to move in the positive direction of the Y axis by controlling the actuating lines L3 and L7 to shorten and controlling the actuating line L6 to shorten. In this case, the resultant force of the actuating lines L3 and L7 acting on the carrier 53 is in the positive direction of the Z axis and cancels out the component of the force of the actuating line L6 acting on the carrier 53 in the negative direction of the Z axis. In other words, the direction of the resultant force of the actuating lines L3, L6 and L7 acting on the carrier 53 is the component of the force of the actuating line L6 acting on the carrier 53 in the positive direction of the Y axis. Since the connection point C1, the connection point G1 and the connection point F1 are fixed on the fixed part 52, the connection point F2 will move in the positive direction of the Y axis under the action of the component of the force of the actuating line L6 acting on the carrier 53 in the positive direction of the Y axis, thereby driving the carrier 53 to move in the positive direction of the Y axis.

[0130] In some embodiments, for Fig. 10A The situation shown, refer to Fig. 10D , the mobile phone 1 can control the carrier 53 to move in the negative direction of the Y axis by controlling the actuating line L3 and the actuating line L7 to shorten and controlling the actuating line L2 to shorten. In this case, the resultant force of the actuating line L3 and the actuating line L7 acting on the carrier 53 is in the positive direction of the Z axis and cancels out the component of the force of the actuating line L2 acting on the carrier 53 in the negative direction of the Z axis. In other words, the direction of the resultant force of the actuating line L3, the actuating line L2 and the actuating line L7 acting on the carrier 53 is the component of the force of the actuating line L2 acting on the carrier 53 in the negative direction of the Y axis. Since the connection point C1, the connection point G1 and the connection point B1 are fixed on the fixed part 52, the connection point B2 will move in the negative direction of the Y axis under the action of the component of the force of the actuating line L2 acting on the carrier 53 in the negative direction of the Y axis, thereby driving the carrier 53 to move in the negative direction of the Y axis.

[0131] It should be understood that when at least one of the actuating lines L2 and L6 is disconnected and at least one of the actuating lines L3 and L7 is disconnected, the way in which the mobile phone 1 controls the movement of the carrier 53 can refer to the situation where at least one of the actuating lines L8 and L4 is disconnected and at least one of the actuating lines L1 and L5 is disconnected, and no further details are given here.

[0132] Based on the above embodiments, the control method provided in the embodiments of the present application can control the SMA motor based on the unbroken actuation wire when an actuation wire in the SMA motor is disconnected, so that the carrier can continue to move. In this way, corresponding to the camera using the SMA motor, at least some of the focusing and anti-shake functions of the camera can continue to be retained.

[0133] Next, the electronic device is the aforementioned mobile phone 1, combined with Figure 2 The connection method of the actuating wire, the carrier and the fixing part in the camera 5 shown, and FIG. 5A to FIG. 9B The situation shown introduces the technical solution of the present application.

[0134] Fig.11 According to some embodiments of the present application, a flow chart of a control method is shown. The execution subject of the flow chart may be an electronic device, such as the aforementioned mobile phone 1. Fig.11 As shown, the process includes the following steps:

[0135] S1101, electronic equipment starts.

[0136] After the electronic device is started, the control method provided in the embodiment of the present application is triggered.

[0137] In some embodiments, when or after the electronic device is started, the electronic device may determine a first direction of movement of the SMA motor that controls the target camera in response to a first operation.

[0138] In some embodiments, the first operation may include: the user starting the electronic device, the user starting the target camera (for example, starting a camera application or other application that needs to call the camera), the user adjusting the camera focus, the user moving the electronic device, etc.

[0139] For example, the electronic device may determine a first direction from the current position to the target position according to the target position of the carrier relative to the fixing portion and the current position of the carrier in response to the user starting the operation of the electronic device.

[0140] For another example, the electronic device can determine the focal length required for shooting according to the image captured by the camera based on the user's operation of starting the camera, and then determine the first direction in which the carrier is to be moved according to the determined focal length and the current focal length of the camera.

[0141] For another example, the electronic device may determine the first direction of the mobile carrier in response to a user's operation of adjusting the focal length of the camera according to the focal length adjustment method (increasing the focal length or decreasing the focal length).

[0142] For another example, the electronic device may determine, in response to the user moving the electronic device, a direction opposite to the direction in which the user moves the electronic device as a first direction, so as to implement an anti-shake function of a target camera.

[0143] It should be understood that in some embodiments, when the electronic device is started, it can determine whether the actuating wires in the SMA motors of each camera in the electronic device are broken, which is not limited here.

[0144] S1102, the electronic device controls the target camera based on all actuation lines in the SMA motor of the target camera.

[0145] The electronic device controls the target camera based on all actuating wires in the SMA motor of the target camera when there is no wire breakage in the SMA motor of the target camera.

[0146] Exemplarily, when the target camera is the aforementioned camera 5 , if none of the actuating lines L1 to L8 are broken, the mobile phone 1 can control the movement of the carrier 53 based on the actuating lines L1 to L8 to achieve focus and anti-shake of the camera 5 .

[0147] For example, the mobile phone 1 can control the carrier 53 to move along the positive direction of the Z axis by controlling the contraction of the actuating lines L2, L4, L6, and L8, and can also control the carrier 53 to move along the negative direction of the Z axis by controlling the contraction of the actuating lines L1, L3, L5, and L7.

[0148] For another example, the mobile phone 1 can control the carrier 53 to move along the negative direction of the Y axis by controlling the contraction of the actuating wires L1 and L2, and control the carrier 53 to move along the positive direction of the Y axis by controlling the contraction of the actuating wires L5 and L6.

[0149] For another example, the mobile phone 1 can control the carrier 53 to move along the negative direction of the X-axis by controlling the contraction of the actuating wires L7 and L8, and control the contraction of the actuating wires L3 and L4 to control the carrier 53 to move along the positive direction of the X-axis.

[0150] It should be understood that in some embodiments, the mobile phone 1 can also simultaneously control the movement of the carrier 53 in multiple directions along the X-axis, Y-axis, and Z-axis, so that the combined movement of the carrier 53 is not along the X-axis, Y-axis, and Z-axis.

[0151] It should be understood that a broken wire may be a physically broken actuation wire in the SMA motor, or an actuation wire that is abnormal (eg, an actuation wire whose resistance / current / voltage does not match a preset value or is not within a preset range).

[0152] Exemplarily, the electronic device may collect one or more of the current, voltage, and resistance of each actuating line in the SMA motor of the target camera, and compare the collected information with a preset value or a preset range. The electronic device may determine that the actuating line is broken when the collected current, voltage, or resistance of a certain actuating line is different from the preset value or exceeds the preset range. For example, the electronic device may determine that the actuating line is broken when the current, voltage, or resistance of a certain actuating line is 0.

[0153] It should be understood that the target camera may be one or more cameras of the electronic device.

[0154] S1103, the electronic device determines whether the SMA motor in the target camera is disconnected.

[0155] When a wire break exists in the SMA motor of the target camera, the electronic device determines the broken wire of the SMA motor in the target camera.

[0156] For example, for Figure 5A In the case shown, when both actuation line L8 and actuation line L4 are disconnected, actuation line L8 and actuation line L4 are broken. When actuation line L8 is disconnected and actuation line L4 is not disconnected, actuation line L8 is broken. When actuation line L4 is disconnected and actuation line L8 is not disconnected, actuation line L4 is broken.

[0157] In some embodiments, the electronic device collects one or more of the current, voltage, and resistance of each actuating line in the SMA motor of the target camera, and compares the collected information with a preset value or a preset range. The electronic device can determine that the actuating line is broken when the collected current, voltage, or resistance of a certain actuating line is different from the preset value or exceeds the preset range (for example, the current, voltage, or resistance is 0).

[0158] S1104 , the electronic device controls the SMA motor based on the target actuation wire among the unbroken SMA actuation wires.

[0159] When the disconnection control condition is met, the electronic device controls the moving direction of the carrier in the SMA motor (e.g., the first direction mentioned above) as required, and selects multiple actuation lines with the same combined force on the carrier and the moving direction from the unbroken SMA actuation lines as target actuation lines. Then, the mobile phone 1 can control the SMA motor to move along the moving direction by controlling the target actuation lines to contract or show a contraction tendency.

[0160] It will be appreciated that the broken wire control condition is used to indicate whether an unbroken SMA actuation wire is able to drive a carrier in an SMA motor.

[0161] In some embodiments, when there is at least one actuation line pair in the positive tension actuation line group and the negative relay actuation line group that is not disconnected, the electronic device can determine that the disconnection control condition is met.

[0162] For example, for the aforementioned camera 5, the negative tension actuation line group includes actuation line L1, actuation line L3, actuation line L5 and actuation line L7, wherein actuation line L1 and actuation line L5 are an actuation line pair, and actuation line L3 and actuation line L7 are an actuation line pair. The positive tension actuation line group includes actuation line L2, actuation line L4, actuation line L6 and actuation line L8, wherein actuation line L2 and actuation line L6 are an actuation line pair, and actuation line L4 and actuation line L8 are an actuation line pair. Based on this, the mobile phone 1 can determine that the disconnection control condition is not met in any of the following situations:

[0163] Three or four of the actuation lines L1, L3, L5 and L7 are disconnected;

[0164] Three or four of the actuation lines L2, L4, L6 and L8 are disconnected;

[0165] The actuation line L1 and the actuation line L3 are disconnected;

[0166] The actuation line L5 and the actuation line L7 are disconnected;

[0167] The actuation line L2 and the actuation line L8 are disconnected;

[0168] The actuation line L4 and the actuation line L6 are disconnected.

[0169] It should be understood that in some embodiments, the disconnection control condition may also include other conditions, which are not limited here.

[0170] Exemplarily, the electronic device can automatically determine the target focal length corresponding to the image currently captured by the target camera (or according to the target focal length selected by the user, or the target focal length determined according to the shooting target corresponding to the focus selected by the user), and control the SMA motor to move along the Z axis based on the target actuation line in the undisconnected SMA actuation line so that the focal length used by the camera when capturing the image is the target focal length.

[0171] In some embodiments, the electronic device can determine the target focal length to be adopted by the target camera to capture the image through an automatic focus (AF) algorithm, such as a contrast detection auto focus (CDAF) algorithm, a phase detection auto focus (PDAF) algorithm, etc., and determine the direction in which the carrier needs to be controlled to move based on the current focal length of the target camera.

[0172] Exemplarily, the electronic device can also achieve anti-shake of the target camera by controlling the SMA motor to move in the opposite direction in a plane perpendicular to the optical axis of the target camera based on the target actuation line in the unbroken SMA actuation line according to the movement direction of the mobile phone 1 in the plane perpendicular to the optical axis of the target camera.

[0173] The following takes the electronic device as the aforementioned mobile phone 1 and the target camera as the aforementioned camera 5 as an example, and introduces the method of determining the target actuation line in combination with different disconnection situations.

[0174] In some embodiments, when the actuation line L8 and / or the actuation line L4 is broken, the target actuation line can be determined by:

[0175] Corresponding to increasing the focal length of the camera 5, the actuation line L2 and the actuation line L6 are determined as target actuation lines;

[0176] Corresponding to reducing the focal length of the camera 5, the actuation line L1, the actuation line L3, the actuation line L5 and the actuation line L7 are determined as target actuation lines, or the actuation line L1 and the actuation line L5 are determined as target actuation lines, or the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0177] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation lines L2, L3 and L6 are determined as target actuation lines;

[0178] Corresponding to controlling the carrier 53 to move in the negative direction of the X-axis, the actuation lines L2, L7 and L6 are determined as target actuation lines;

[0179] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation line L5 and the actuation line L6 are determined as target actuation lines;

[0180] Corresponding to the control carrier 53 moving toward the negative direction of the Y axis, the actuation line L1 and the actuation line L2 are determined as target actuation lines.

[0181] In some embodiments, when the actuation line L2 and / or the actuation line L6 is broken, the target actuation line can be determined by:

[0182] Corresponding to increasing the focal length of the camera 5, the actuation line L4 and the actuation line L8 are determined as target actuation lines;

[0183] Corresponding to reducing the focal length of the camera 5, the actuation line L1, the actuation line L3, the actuation line L5 and the actuation line L7 are determined as target actuation lines, or the actuation line L1 and the actuation line L5 are determined as target actuation lines, or the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0184] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation line L3 and the actuation line L4 are determined as target actuation lines;

[0185] Corresponding to controlling the carrier 53 to move in the negative direction of the X axis, the actuation line L7 and the actuation line L8 are determined as target actuation lines;

[0186] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation lines L5, L4 and L8 are determined as target actuation lines;

[0187] Corresponding to the control carrier 53 moving toward the negative direction of the Y axis, the actuation line L1 , the actuation line L4 , and the actuation line L8 are determined as target actuation lines.

[0188] In some embodiments, when the actuation line L1 and / or the actuation line L5 is broken, the target actuation line can be determined by:

[0189] Corresponding to increasing the focal length of the camera 5, the actuation line L2, the actuation line L4, the actuation line L6 and the actuation line L8 are determined as target actuation lines, or the actuation line L2 and the actuation line L4 are determined as target actuation lines, or the actuation line L6 and the actuation line L8 are determined as target actuation lines;

[0190] Corresponding to reducing the focal length of the camera 5, the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0191] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation line L3 and the actuation line L4 are determined as target actuation lines;

[0192] Corresponding to controlling the carrier 53 to move in the negative direction of the X axis, the actuation line L7 and the actuation line L8 are determined as target actuation lines;

[0193] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation line L6, the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0194] Corresponding to controlling the carrier 53 to move toward the negative direction of the Y axis, the actuation lines L2 , L3 , and L7 are determined as target actuation lines.

[0195] In some embodiments, when the actuation line L3 and / or the actuation line L7 is broken, the target actuation line can be determined by:

[0196] Corresponding to increasing the focal length of the camera 5, the actuation line L2, the actuation line L4, the actuation line L6 and the actuation line L8 are determined as target actuation lines, or the actuation line L2 and the actuation line L4 are determined as target actuation lines, or the actuation line L6 and the actuation line L8 are determined as target actuation lines;

[0197] Corresponding to reducing the focal length of the camera 5, the actuation line L1 and the actuation line L5 are determined as target actuation lines;

[0198] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation line L4, the actuation line L1 and the actuation line L5 are determined as target actuation lines;

[0199] Corresponding to controlling the carrier 53 to move in the negative direction of the X-axis, the actuation line L8, the actuation line L1 and the actuation line L5 are determined as target actuation lines;

[0200] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation line L5 and the actuation line L6 are determined as target actuation lines;

[0201] Corresponding to the control carrier 53 moving toward the negative direction of the Y axis, the actuation lines L1 and L2 are determined as target actuation lines.

[0202] In some embodiments, when at least one of the actuation line L8 and the actuation line L4 is broken, and at least one of the actuation line L7 and the actuation line L3 is broken, the target actuation line may be determined by:

[0203] Corresponding to increasing the focal length of the camera 5, the actuation line L2 and the actuation line L6 are determined as target actuation lines;

[0204] Corresponding to reducing the focal length of the camera 5, the actuation line L1 and the actuation line L5 are determined as target actuation lines;

[0205] Corresponding to the control carrier 53 moving in the positive direction of the X axis and the actuation line L3 is not broken, the actuation line L2, the actuation line L3 and the actuation line L6 are determined as the target actuation lines;

[0206] Corresponding to the control carrier 53 moving in the negative direction of the X axis and the actuation line L7 is not broken, the actuation line L2, the actuation line L7 and the actuation line L6 are determined as the target actuation lines;

[0207] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation line L5 and the actuation line L6 are determined as target actuation lines;

[0208] Corresponding to the control carrier 53 moving toward the negative direction of the Y axis, the actuation line L1 and the actuation line L2 are determined as target actuation lines.

[0209] In some embodiments, when at least one of the actuation lines L2 and L6 is broken, and at least one of the actuation lines L7 and L3 is broken, the target actuation line may be determined by:

[0210] Corresponding to increasing the focal length of the camera 5, the actuation line L4 and the actuation line L8 are determined as target actuation lines;

[0211] Corresponding to reducing the focal length of the camera 5, the actuation line L1 and the actuation line L5 are determined as target actuation lines;

[0212] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation lines L1, L5 and L4 are determined as target actuation lines;

[0213] Corresponding to controlling the carrier 53 to move in the negative direction of the X-axis, the actuation lines L1, L5 and L8 are determined as target actuation lines;

[0214] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation lines L4, L5 and L8 are determined as target actuation lines;

[0215] Corresponding to the control carrier 53 moving toward the negative direction of the Y axis, the actuation line L1 , the actuation line L4 , and the actuation line L8 are determined as target actuation lines.

[0216] In some embodiments, when at least one of the actuation lines L4 and L8 is broken, and at least one of the actuation lines L5 and L1 is broken, the target actuation line may be determined by:

[0217] Corresponding to increasing the focal length of the camera 5, the actuation line L2 and the actuation line L6 are determined as target actuation lines;

[0218] Corresponding to reducing the focal length of the camera 5, the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0219] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation line L3, the actuation line L2 and the actuation line L6 are determined as target actuation lines;

[0220] Corresponding to controlling the carrier 53 to move in the negative direction of the X-axis, the actuation line L7, the actuation line L2 and the actuation line L6 are determined as target actuation lines;

[0221] Corresponding to controlling the carrier 53 to move in the positive direction of the Y axis, the actuation line L6, the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0222] Corresponding to controlling the carrier 53 to move toward the negative direction of the Y axis, the actuation lines L2 , L3 , and L7 are determined as target actuation lines.

[0223] In some embodiments, when at least one of the actuation lines L2 and L6 is broken, and at least one of the actuation lines L5 and L1 is broken, the target actuation line may be determined by:

[0224] Corresponding to increasing the focal length of the camera 5, the actuation line L8 and the actuation line L4 are determined as target actuation lines;

[0225] Corresponding to reducing the focal length of the camera 5, the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0226] Corresponding to controlling the carrier 53 to move in the positive direction of the X axis, the actuation line L3 and the actuation line L4 are determined as target actuation lines;

[0227] Corresponding to controlling the carrier 53 to move in the negative direction of the X axis, the actuation line L7 and the actuation line L8 are determined as target actuation lines;

[0228] Corresponding to the control carrier 53 moving in the positive direction of the Y axis and the actuation line L6 is not broken, the actuation line L6, the actuation line L3 and the actuation line L7 are determined as target actuation lines;

[0229] Corresponding to the control carrier 53 moving in the negative direction of the Y axis and the actuation line L2 being not broken, the actuation line L2, the actuation line L3 and the actuation line L7 are determined as target actuation lines.

[0230] S1105, the electronic device turns off the SMA motor.

[0231] The electronic device turns off the SMA motor when the disconnection control conditions are not met.

[0232] In some embodiments, when the disconnection control conditions are not met, the electronic device may also display a prompt message to remind the user that the camera motor is damaged and the focus and anti-shake functions of the camera will be turned off.

[0233] Based on the method provided in the above embodiment, when the actuating wire in the SMA motor of the target camera is broken and the breakage control condition is met, the electronic device can still control the movement of the motor to achieve the focus and anti-shake functions of the target camera.

[0234] Specifically, Fig.12 According to some embodiments of the present application, a structural schematic diagram of a mobile phone 1 is shown.

[0235] like Fig.12 As shown, the mobile phone 1 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc. Among them, the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

[0236] The processor 110 may include one or more processing units, for example, the processor 110 may include a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a microcontroller unit (MCU), a video codec, a digital signal processor (DSP), a baseband processor, a neural-network processing unit (NPU), a field programmable gate array (FPGA), etc. In some embodiments, different processing units may be independent devices or integrated into one or more processors.

[0237] The processor 110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may store instructions or data that the processor 110 has just used or is cyclically used. When the processor 110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 110, and thus improves the efficiency of the system.

[0238] In some embodiments, the processor 110 may be configured to execute instructions of the control methods provided in the aforementioned embodiments.

[0239] In some embodiments, the processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, etc.

[0240] The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 110 may include multiple groups of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces. For example, the processor 110 may be coupled to the touch sensor 180K through the I2C interface, so that the processor 110 communicates with the touch sensor 180K through the I2C bus interface to realize the touch function of the mobile phone 1.

[0241] The USB interface 130 is an interface that complies with the USB standard specification, and specifically can be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. The USB interface 130 can be used to connect a charger to charge the mobile phone 1, and can also be used to transmit data between the mobile phone 1 and peripheral devices. For example, the interface can also be used to connect other electronic devices, such as AR devices, display devices, etc., to display a user interface through the AR devices and display devices.

[0242] The charging management module 140 is used to receive charging input from a charger. While the charging management module 140 is charging the battery 142 , it can also power the electronic device through the power management module 141 .

[0243] The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140 to power the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160.

[0244] The wireless communication function of the mobile phone 1 can be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

[0245] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals.

[0246] The mobile communication module 150 can provide solutions for wireless communications including 2G / 3G / 4G / 5G, etc., applied to the mobile phone 1. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the same device as at least some of the modules of the processor 110.

[0247] The wireless communication module 160 can provide wireless communication solutions including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc., which are applied to the mobile phone 1. The wireless communication module 160 can be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the frequency of the electromagnetic wave signal and performs filtering, and sends the processed signal to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, modulate the frequency of it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2.

[0248] The mobile phone 1 implements the display function through a GPU, a display screen 194, and an application processor. The GPU is a microprocessor for image processing, which connects the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

[0249] The display screen 194 is used to display images, videos, etc. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light emitting diode or an active-matrix organic light emitting diode (AMOLED), a flexible light-emitting diode (FLED), Mini-LED, Micro-LED, Micro-OLED, quantum dot light-emitting diodes (QLED), etc. In some embodiments, the mobile phone 1 may include 1 or N display screens 194, where N is a positive integer greater than 1.

[0250] The camera 193 is used to capture still images or videos. The object generates an optical image through the lens and projects it onto the photosensitive element. The photosensitive element can be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then passes the electrical signal to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV or other format. In some embodiments, the mobile phone 1 may include 1 or N cameras 193, where N is a positive integer greater than 1.

[0251] In some embodiments, at least one of the cameras 193 may be a camera driven by an SMA motor, such as the aforementioned camera 5 .

[0252] The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the mobile phone 1. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function, such as storing music, video and other files in the external memory card.

[0253] The internal memory 121 can be used to store computer executable program codes, and the executable program codes include instructions. The internal memory 121 may include a program storage area and a data storage area. In some embodiments, the program storage area may store an operating system, an application required for at least one function, etc., such as instructions for the control method provided in the aforementioned embodiments. The data storage area may store data created during the use of the mobile phone 1, such as the aforementioned target application, a patch package for the target application, and a hotspot code configuration file for the target application. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc. The processor 110 executes various functional applications of the mobile phone 1 by running instructions stored in the internal memory 121, and / or instructions stored in a memory provided in the processor 110.

[0254] The mobile phone 1 can realize audio functions such as music playing and recording through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor.

[0255] The audio module 170 is used to convert digital audio information into analog audio signal output, and also used to convert analog audio input into digital audio signal. The audio module 170 can also be used to encode and decode audio signals.

[0256] The speaker 170A, also called a "horn", is used to convert audio electrical signals into sound signals.

[0257] The receiver 170B, also called a "handset", is used to convert audio electrical signals into sound signals.

[0258] Microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals.

[0259] The earphone jack 170D is used to connect a wired earphone.

[0260] The pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A can be set on the display screen 194. There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, etc. A capacitive pressure sensor can be a parallel plate including at least two conductive materials. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The mobile phone 1 determines the intensity of the pressure based on the change in capacitance. When a touch operation acts on the display screen 194, the mobile phone 1 detects the intensity of the touch operation based on the pressure sensor 180A. The mobile phone 1 can also calculate the position of the touch based on the detection signal of the pressure sensor 180A.

[0261] The acceleration sensor 180E can detect the magnitude of the acceleration of the mobile phone 1 in all directions (generally three axes). When the mobile phone 1 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices and applied to applications such as horizontal and vertical screen switching and pedometers. In some embodiments, the mobile phone 1 can determine the movement of the mobile phone 1 based on the data collected by the acceleration sensor 180E, thereby determining the movement direction of the carrier in the camera 5.

[0262] The distance sensor 180F is used to detect the distance between the mobile phone 1 and other objects. In some embodiments, the mobile phone 1 can use the distance sensor 180F to determine the distance between the object corresponding to the focus of the camera and the mobile phone 1, and determine the focal length of the camera image based on the distance. Then, the mobile phone 1 can determine the moving direction of the carrier in the SMA motor in the camera according to the determined focal length and the current focal length of the camera.

[0263] The ambient light sensor 180L is used to sense the ambient light brightness. The mobile phone 1 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the mobile phone 1 is in a pocket to prevent accidental touches.

[0264] The fingerprint sensor 180H is used to collect fingerprints. The mobile phone 1 can use the collected fingerprint characteristics to achieve fingerprint unlocking, access application locks, fingerprint photography, fingerprint call answering, etc.

[0265] The touch sensor 180K is also called a "touch control device". The touch sensor 180K can be set on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a "touch control screen". The touch sensor 180K is used to detect touch operations acting on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194. In some embodiments, the touch sensor 180K can also be set on the surface of the mobile phone 1, which is different from the position of the display screen 194.

[0266] The bone conduction sensor 180M can obtain vibration signals. In some embodiments, the bone conduction sensor 180M can obtain vibration signals of vibrating bones of the human body. The bone conduction sensor 180M can also contact the human body's pulse to receive blood pressure beating signals.

[0267] The key 190 includes a power key, a volume key, etc. The key 190 can be a mechanical key or a touch key. The mobile phone 1 can receive key input and generate key signal input related to the user settings and function control of the mobile phone 1.

[0268] Motor 191 can generate vibration prompts.

[0269] Indicator 192 may be an indicator light, which may be used to indicate charging status, power changes, messages, missed calls, notifications, etc.

[0270] The SIM card interface 195 is used to connect a SIM card.

[0271] It is understood that the structure of the mobile phone 1 shown in the embodiment of the present application does not constitute a specific limitation on the mobile phone 1. In some embodiments of the present application, the mobile phone 1 may include more or fewer components than shown in the figure, or combine some components, or split some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0272] The embodiments of the present application also provide a program product, which, when executed on a device, can enable the device to implement the control methods provided in the aforementioned embodiments.

[0273] An embodiment of the present application further provides a readable storage medium, in which instructions are stored. When the instructions are executed by a device, the device implements the control methods provided by the aforementioned embodiments.

[0274] In the accompanying drawings, some structural or method features may be shown in a specific arrangement and / or order. However, it should be understood that such a specific arrangement and / or order may not be required. Instead, in some embodiments, these features may be arranged in a manner and / or order different from that shown in the illustrative drawings. In addition, the inclusion of structural or method features in a particular figure does not mean that such features are required in all embodiments, and in some embodiments, these features may not be included or may be combined with other features.

[0275] It should be noted that in the examples and description of this patent, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "includes one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A control method, applied to an electronic device, characterized in that: The electronic device comprises a shape memory alloy motor, a fixed part of the shape memory alloy motor and a carrier are connected via N actuating wires, wherein one end of the actuating wire is connected to the carrier, and the other end of the actuating wire is connected to the fixed part, and when the actuating wire contracts, the carrier is driven to move relative to the fixed part, and the method comprises: detecting a first operation of a user, where the first operation is used to instruct the carrier to move along a first direction; When L of the N actuating wires are disconnected and K of the NL actuating wires that are not disconnected are contracted, the direction of the resultant force acting on the carrier is the same as the first direction. The K actuating wires are used to drive the carrier to move along the first direction.

2. The method according to claim 1, characterized in that The shape memory alloy motor is arranged in the camera of the electronic device, and the lens of the camera is arranged on the carrier.

3. The method according to claim 2, characterized in that The N actuating wires include P actuating wires whose direction of the component of the force acting on the carrier in the first reference direction during contraction is the positive direction of the first reference direction, and NP actuating wires whose direction of the component of the force acting on the carrier in the first reference direction during contraction is the opposite direction of the first reference direction, wherein the first reference direction is the same as the optical axis direction of the lens; and the use of the K actuating wires to drive the carrier to move along the first direction includes: When the following conditions are met, the K actuation wires are selected from the NL actuation wires that are not disconnected, and the K actuation wires are used to drive the carrier to move along the first direction: At least two of the P actuation lines are not disconnected, and when all of the P actuation lines that are not disconnected are contracted, the direction of the resultant force acting on the carrier is along the negative direction of the first reference direction; And there are at least two actuation wires in the NP actuation wires that are not disconnected, and when the actuation wires in the NP actuation wires that are not disconnected are all contracted, the direction of the resultant force acting on the carrier is along the positive direction of the first reference direction.

4. The method according to claim 3, characterized in that The shape memory alloy motor comprises a first reference plane, a second reference plane, a third reference plane and a fourth reference plane which are parallel to the first reference direction, wherein the first reference plane and the third reference plane are symmetrically arranged relative to the center of the carrier and are parallel to the second reference direction, the second reference plane and the fourth reference plane are symmetrically arranged relative to the center of the carrier and are parallel to the third reference direction, and the first reference direction, the second reference direction and the third reference direction are perpendicular to each other; The P actuation lines include a first actuation line, a third actuation line, a fifth actuation line and a seventh actuation line respectively arranged on the first reference surface, the second reference surface, the third reference surface and the fourth reference surface, and the NP actuation lines include a second actuation line, a fourth actuation line, a sixth actuation line and an eighth actuation line respectively arranged on the first reference surface, the second reference surface, the third reference surface and the fourth reference surface; wherein, The force acting on the carrier when the first actuating wire contracts includes a component in a negative direction of the first reference direction and a component in a negative direction of the second reference direction; The force acting on the carrier when the second actuating wire contracts includes a component in a positive direction of the first reference direction and a component in a negative direction of the second reference direction; When the third actuating wire contracts, the force acting on the carrier includes a component in a negative direction of the first reference direction and a component in a positive direction of the third reference direction; When the fourth actuating wire contracts, the force acting on the carrier includes a component in a positive direction of the first reference direction and a component in a positive direction of the third reference direction; When the fifth actuating wire contracts, the force acting on the carrier includes a component in a negative direction of the first reference direction and a component in a positive direction of the second reference direction; The force acting on the carrier when the sixth actuation wire contracts includes a component along the positive direction of the first reference direction and a component along the positive direction of the second reference direction; When the seventh actuation wire contracts, the force acting on the carrier includes a component in the negative direction of the first reference direction and a component in the negative direction of the third reference direction; When the eighth actuating wire contracts, the force acting on the carrier includes a component in a positive direction along the first reference direction and a component in a negative direction along the third reference direction.

5. The method according to claim 4, characterized in that The step of selecting the K actuation wires from the NL actuation wires that are not disconnected comprises: When at least one of the first actuation wire and the fifth actuation wire is disconnected, and at least one of the second actuation wire and the sixth actuation wire is disconnected, determining at least some of the third actuation wire, the fourth actuation wire, the seventh actuation wire, and the eighth actuation wire to be the K actuation wires; or when at least one of the first actuation line and the fifth actuation line is disconnected, and at least one of the fourth actuation line and the eighth actuation line is disconnected, determining at least some of the second actuation line, the third actuation line, the sixth actuation line, and the seventh actuation line as the K actuation lines; or when at least one of the third actuation line and the seventh actuation line is disconnected, and at least one of the second actuation line and the sixth actuation line is disconnected, at least some of the first actuation line, the fourth actuation line, the fifth actuation line, and the eighth actuation line are determined to be the K actuation lines; Alternatively, when at least one of the third actuation line and the seventh actuation line is disconnected, and at least one of the fourth actuation line and the eighth actuation line is disconnected, at least some of the first actuation line, the second actuation line, the fifth actuation line, and the sixth actuation line are determined to be the K actuation lines.

6. The method according to claim 5, characterized in that The step of determining at least some of the third actuation line, the fourth actuation line, the seventh actuation line, and the eighth actuation line as the K actuation lines when at least one of the first actuation line and the fifth actuation line is disconnected and at least one of the second actuation line and the sixth actuation line is disconnected comprises: Corresponding to the first direction being the positive direction of the first reference direction, determining the fourth actuation line and the eighth actuation line as the K actuation lines; or corresponding to the first direction being the negative direction of the first reference direction, determining the third actuation line and the seventh actuation line as the K actuation lines; or corresponding to the first direction being the positive direction of the third reference direction, determining the third actuation line and the fourth actuation line as the K actuation lines; or corresponding to the first direction being the negative direction of the third reference direction, determining the seventh actuation line and the eighth actuation line as the K actuation lines; or corresponding to the first direction being the positive direction of the second reference direction and the sixth actuation line being not disconnected, determining the third actuation line, the sixth actuation line and the seventh actuation line as the K actuation lines; Or corresponding to the first direction being the negative direction of the second reference direction and the second actuating wire being not disconnected, the second actuating wire, the third actuating wire and the seventh actuating wire are determined to be the K actuating wires.

7. The method according to claim 5, characterized in that The step of determining at least some of the second actuation line, the third actuation line, the sixth actuation line, and the seventh actuation line as the K actuation lines when at least one of the first actuation line and the fifth actuation line is disconnected and at least one of the fourth actuation line and the eighth actuation line is disconnected comprises: Corresponding to the first direction being the positive direction of the first reference direction, determining the second actuation line and the sixth actuation line as the K actuation lines; or corresponding to the first direction being the negative direction of the first reference direction, determining the third actuation line and the seventh actuation line as the K actuation lines; or corresponding to the first direction being the positive direction of the third reference direction, determining the second actuation line, the third actuation line and the sixth actuation line as the K actuation lines; or corresponding to the first direction being the negative direction of the third reference direction, determining the second actuation line, the sixth actuation line and the seventh actuation line as the K actuation lines; or corresponding to the first direction being the positive direction of the second reference direction, determining the third actuation line, the sixth actuation line and the seventh actuation line as the K actuation lines; Alternatively, corresponding to the first direction being the negative direction of the second reference direction, the second actuation line, the third actuation line and the seventh actuation line are determined to be the K actuation lines.

8. The method according to claim 2, characterized in that: The first operation includes any one of the following operations: A user starts the operation of the electronic device; An operation of a user adjusting the focal length of the camera; An operation of a user moving the electronic device; The user starts the operation of the camera.

9. The method according to claim 8, characterized in that The detecting a first operation of the user includes: When the first operation is an operation of the user starting the electronic device, determining the first direction based on the current position of the carrier and the preset position of the carrier; When the first operation is an operation of adjusting the focal length of the camera by the user, determining the first direction based on the current focal length of the camera and the focal length set by the user; When the first operation is an operation of the user moving the electronic device, determining the first direction according to a second direction in which the user moves the electronic device; When the first operation is an operation of starting the camera by the user, the first direction is determined based on the focal length of the image captured by the camera.

10. The method according to claim 1, characterized in that K is less than or equal to 4.

11. The method according to claim 1, characterized in that: The method further comprises: When none of the N actuation wires is disconnected, M actuation wires of the N actuation wires are used to drive the carrier to move along the first direction, wherein the M actuation wires include at least one actuation wire of the L actuation wires.

12. A readable storage medium, characterized in that: The readable storage medium includes instructions, and when the instructions are executed by the electronic device, the electronic device implements the control method according to any one of claims 1 to 11.

13. An electronic device, characterized in that: include: Shape memory alloy motor; A memory for storing instructions; A processor, configured to execute the instruction so that the electronic device controls the shape memory alloy motor through the control method according to any one of claims 1 to 11.

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