CN111857239A

CN111857239A - Camera module, state detection method and device thereof, and electronic equipment

Info

Publication number: CN111857239A
Application number: CN201910340384.4A
Authority: CN
Inventors: 项吉
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-10-30

Abstract

The disclosure relates to a camera module, a state detection method and device thereof and electronic equipment. The camera module includes: the camera assembly can slide in a reciprocating manner relative to the shell of the electronic equipment; a signal emitter secured to the camera assembly to slide relative to the housing or secured relative to the housing; the camera head comprises a first signal receiver and a second signal receiver, one of the first signal receiver and the second signal receiver and the signal transmitter keep the same relative position relation, and the other changes the relative position relation with the signal transmitter along with the movement of the camera head component, so that the state of the camera head component is determined through the phase difference of the signals received by the first signal receiver and the second signal receiver.

Description

Camera module, state detection method and device thereof, and electronic equipment

Technical Field

The disclosure relates to the technical field of terminals, and in particular relates to a camera module, a state detection method and device thereof, and electronic equipment.

Background

Currently, the requirement of a user for a photographing function of an electronic device is gradually increased, in a related technology, a liftable camera can be arranged in the electronic device, and when the user has a front photographing requirement, the liftable camera can protrude out of an outer shell of the electronic device; when the user does not have the front shooting requirement, the liftable camera is stored in the electronic equipment, and the occupation of a display area is avoided.

Disclosure of Invention

The disclosure provides a camera module, a state detection method and device thereof and electronic equipment, and aims to overcome the defects in the related art.

According to a first aspect of the embodiments of the present disclosure, a camera module is provided, including:

the camera assembly can slide in a reciprocating manner relative to the shell of the electronic equipment;

a signal emitter secured to the camera assembly to slide relative to the housing or secured relative to the housing;

the camera head comprises a first signal receiver and a second signal receiver, one of the first signal receiver and the second signal receiver and the signal transmitter keep the same relative position relation, and the other changes the relative position relation with the signal transmitter along with the movement of the camera head component, so that the state of the camera head component is determined through the phase difference of the signals received by the first signal receiver and the second signal receiver.

Optionally, the camera module further comprises:

the base, the base with the casing is relatively fixed, signal transmitter fixed connection in camera subassembly or the base.

Optionally, the signal transmitter and the first signal receiver are arranged side by side and are both connected to the camera assembly, the second signal receiver is connected to the base, and the second signal receiver is arranged corresponding to the signal transmitter.

Optionally, the signal transmitter includes an ultrasonic signal transmitter, and the first signal receiver and the second signal receiver each include an ultrasonic receiver.

According to a second aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a housing comprising an opening;

the camera module of any one of the above embodiments, comprising a camera assembly and a base, the camera assembly being reciprocally slidable relative to the housing to extend out of the housing or retract into the housing through the opening.

According to a third aspect of the embodiments of the present disclosure, a method for detecting a state of a camera module is provided, which is applied to an electronic device, where the camera module includes a camera assembly, a signal transmitter, a first signal receiver, and a second signal receiver, the camera assembly is capable of sliding along a housing of the electronic device, a relative positional relationship between the signal transmitter and the first signal receiver is fixed, and a relative positional relationship between the signal transmitter and the second signal receiver is switchable with a movement of the camera assembly;

The state detection method comprises the following steps:

acquiring a phase difference of preset signals received by the first signal receiver and the second signal receiver, wherein the preset signals are from the signal transmitter;

and determining the state of the camera assembly according to the relation between the phase difference and a preset phase difference range, wherein the preset phase difference range is related to the spacing distance between the second signal receiver and the signal transmitter.

Optionally, the obtaining a phase difference between preset signals received by the first signal receiver and the second signal receiver includes:

converting the preset signal received by the first signal receiver into a digital signal related to a time domain;

converting the preset signal received by the second signal receiver into a digital signal related to a time domain;

and determining the phase difference according to the digital signals respectively corresponding to the first signal receiver and the second signal receiver.

Optionally, determining the state of the camera assembly according to the relationship between the phase difference and a preset phase difference range includes:

determining whether the phase difference is within the preset phase difference range;

When the phase difference is outside the phase difference range, determining that the camera assembly is in an abnormal state.

Optionally, the method further includes:

when the camera assembly is determined to be in an abnormal state, driving the camera assembly to recover to a default initial state; alternatively, the first and second electrodes may be,

and when the camera assembly is determined to be in an abnormal state, driving the camera assembly to slide until the phase difference is within the preset phase difference range.

Optionally, the preset phase difference range is obtained by the following method:

when the camera assembly is in a fully extended state, acquiring a first limit phase difference between preset signals received by the first signal receiver and the second signal receiver;

when the camera assembly is in a full storage state, acquiring a second limit phase difference between preset signals received by the first signal receiver and the second signal receiver;

and determining the preset phase difference range according to the first limit phase difference and the second limit phase difference.

Optionally, the method further includes:

and determining the movement distance of the camera assembly according to the phase difference and a preset mapping relation, wherein the preset mapping relation comprises a corresponding relation between the movement distance of the camera assembly and each phase difference in the preset phase difference range.

According to a fourth aspect of the embodiments of the present disclosure, a status detection apparatus for a camera module is provided, which is applied to an electronic device, where the camera module includes a camera assembly, a signal transmitter, a first signal receiver, and a second signal receiver, the camera assembly can slide along a housing of the electronic device, a relative position relationship between the signal transmitter and the first signal receiver is fixed, and a relative position relationship between the signal transmitter and the second signal receiver can be switched with a movement of the camera assembly;

the state detection device includes:

the acquisition module is used for acquiring the phase difference of preset signals received by the first signal receiver and the second signal receiver, wherein the preset signals come from the signal transmitter;

and the first determining module is used for determining the state of the camera assembly according to the relation between the phase difference and a preset phase difference range, wherein the preset phase difference range is related to the spacing distance between the second signal receiver and the signal transmitter.

Optionally, the obtaining module includes:

a first conversion unit which converts the preset signal received by the first signal receiver into a digital signal related to a time domain;

The second conversion unit is used for converting the preset signal received by the second signal receiver into a digital signal related to a time domain;

and the first determining unit is used for determining the phase difference according to the digital signals respectively corresponding to the first signal receiver and the second signal receiver.

Optionally, the determining module includes:

a second determination unit that determines whether the phase difference is within the preset phase difference range;

a third determination unit that determines that the camera assembly is in an abnormal state when the phase difference is outside the phase difference range.

Optionally, the method further includes:

the first driving module is used for driving the camera assembly to recover to a default initial state when the camera assembly is determined to be in an abnormal state; alternatively, the first and second electrodes may be,

and the second driving module drives the camera assembly to slide until the phase difference is within the preset phase difference range when the camera assembly is determined to be in an abnormal state.

Optionally, the method further includes:

and the second determining module is used for determining the movement distance of the camera assembly according to the phase difference and a preset mapping relation, wherein the preset mapping relation comprises a corresponding relation between the movement distance of the camera assembly and each phase difference in the preset phase difference range.

According to a fifth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method according to any one of the embodiments described above.

According to a sixth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method according to any of the above embodiments when executed.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

According to the embodiment, the camera head assembly can transmit the signal through the signal transmitter, and the phase difference of the signal received by the first signal receiver and the second signal receiver is used for determining the state of the camera head assembly, so that the camera head assembly can be prevented from moving continuously after moving to the limit position, and the camera head assembly is protected to work under the normal working state.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a state diagram of an electronic device shown in accordance with an exemplary embodiment.

FIG. 2 is another state diagram of an electronic device shown in accordance with an example embodiment.

FIG. 3 is an exploded schematic view of an electronic device shown in accordance with an example embodiment.

Fig. 4 is a schematic diagram illustrating a state of a camera module according to an exemplary embodiment.

Fig. 5 is a schematic view of another state of a camera module according to an exemplary embodiment.

Fig. 6 is a flowchart illustrating a method for detecting a status of a camera module according to an exemplary embodiment.

Fig. 7 is a flowchart illustrating another status detection method for a camera module according to an exemplary embodiment.

Fig. 8 is a schematic structural diagram of another camera module according to an exemplary embodiment.

Fig. 9 is a logic diagram illustrating a method for detecting a state of a camera module according to an exemplary embodiment.

Fig. 10-14 are block diagrams illustrating a status detection apparatus of a camera module according to an exemplary embodiment.

Fig. 15 is a block diagram illustrating an apparatus for status detection of a camera module according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Fig. 1 is a schematic diagram illustrating one state of an electronic device 100 according to an exemplary embodiment, and fig. 2 is a schematic diagram illustrating another state of the electronic device 100 according to an exemplary embodiment. As shown in fig. 1 and fig. 2, the electronic device 100 may include a camera module 200, and a portion of the camera module 200 may slide along the housing 101 of the electronic device 100 in a reciprocating manner under the action of the driving assembly, so that the electronic device 100 may be extended out of the electronic device 100 through an opening (not shown) located on the housing 101 as shown in fig. 1; or retracted inside the electronic apparatus 100 as shown in fig. 2, so that the electronic apparatus 100 can be compatible with the front photographing function and the full display function.

Specifically, as shown in fig. 3, the camera module 200 may include a camera assembly 1, a base 3, and a driving assembly 2. The camera assembly 1 is matched with the driving assembly 2, so that the camera assembly 1 is pushed to slide relative to the shell 101 under the action of the driving assembly 2 to extend or retract into the electronic device 100; the driving assembly 2 may include a driving motor and a transmission mechanism cooperating with the driving motor, and the transmission mechanism may include a screw rod structure, a gear transmission structure, etc., and the disclosure is not limited thereto; the camera assembly 1 may include a lens, a focus motor, an image sensor, and the like.

Further, as shown in fig. 4 and 5, the camera module 200 may further include a signal transmitter 4, a first signal receiver 5, and a second signal receiver 6. The signal emitter 4 may be fixed to the camera head assembly 1 to slide relative to the housing 101, or the signal emitter 4 may be fixed relative to the housing by other structures; the same relative positional relationship between the first signal receiver 5 and the signal transmitter 4 can be maintained, and the second signal receiver 6 can change the relative positional relationship with the signal transmitter 4 along with the movement of the camera head assembly 1, so that after the signal transmitted by the signal transmitter 4, the state of the camera head assembly 1 can be determined by the phase difference of the signals received by the first signal receiver 5 and the second signal receiver 6.

For example, as shown in fig. 4 and 5, since the relative position relationship between the first signal receiver 5 and the signal transmitter 4 is fixed, the phase of the signal received by the first signal receiver 5 from the signal transmitter 4 can be considered to be relatively unchanged; and along with the movement of the camera head assembly 1, the relative position relationship between the second signal receiver 6 and the signal transmitter 4 is changed, so that when the phase of the signal received by the second signal receiver 6 from the signal transmitter 4 is continuously changed and the camera head assembly 1 is located at different positions, the phase difference between the second signal receiver 6 and the first signal receiver 5 can be correspondingly changed, and the state of the camera head assembly 1 can be determined.

According to the above embodiments, the present disclosure may determine the state of the camera assembly 1 by transmitting a signal through the signal transmitter 4 and subsequently receiving a phase difference of the signal through the first signal receiver 5 and the second signal receiver 6, so as to prevent the camera assembly 1 from moving after moving to a limit position, which is beneficial to protecting the camera assembly 1 and enabling the camera assembly 1 to work in a normal working state.

It should be noted that: in the above-described embodiment, the description is made taking an example in which the relative positional relationship between the first signal receiver 5 and the signal transmitter 4 is fixed, and the relative positional relationship between the second signal receiver 6 and the signal transmitter 4 may be changed; in fact, in other embodiments, the relative position relationship between the second signal receiver 6 and the signal transmitter 4 may be fixed, and the relative position relationship between the first signal receiver 5 and the signal transmitter 4 may be variable, which is not limited by the present disclosure. The phase difference between the signals received by the first signal receiver 5 and the second signal receiver 6 may be: the first signal receiver 5 and the second signal receiver 6 receive the time difference of the signals, and the time difference can be represented as the width of a rising edge or a falling edge after being converted, and the disclosure is not limited.

In this embodiment, as shown in fig. 4 and 5, the camera module 200 may further include a base 3, and the base 3 may be fixed with respect to the housing 101, for example, the base 3 may be fixed on the housing 101 by an adhesive, or the base 3 may also be fixed on another structure fixedly connected with the housing 101 by a fastener, which is not limited by the disclosure. As shown in fig. 4 and 5, the signal transmitter 4 and the first signal receiver 5 are fixed to the camera head assembly 1, and the second signal receiver 6 is fixed to the base 3. Of course, in other embodiments, the signal transmitter 4 and the second signal receiver may be fixed on the camera head assembly 1, and the first signal receiver 5 is fixed on the base 3 at 6, and the disclosure is not limited.

Still referring to fig. 4 and 5, taking the relative position relationship between the first signal receiver 5 and the signal transmitter 4 as fixed and the relative position relationship between the second signal receiver 6 and the signal transmitter 4 as changeable examples, the first signal receiver 5 and the signal transmitter 4 may be arranged side by side, and both the signal transmitter 4 and the first signal receiver 5 may be connected to the camera assembly 1, specifically may be connected to an end of the camera assembly 1 that is arranged near the base 3, the second signal receiver 6 is connected to the base 3, specifically may be connected to an end of the base 3 that is arranged toward the camera assembly 1, and the second signal receiver 6 is arranged opposite to the signal transmitter 4, which is beneficial to receiving signals by the second signal receiver 6, and improves the accuracy of judging the state of the camera assembly 1.

In the above embodiments, the signal transmitter 4 may comprise an ultrasonic signal transmitter, and correspondingly, the first signal receiver 5 and the second signal receiver 6 may comprise an ultrasonic receiver, the ultrasonic signal transmitter may transmit an ultrasonic frequency of about 44khz slope segment, and the ultrasonic receiver may continuously receive the ultrasonic wave without interruption; alternatively, the signal transmitter 4 may further include a light transmitter, and the first signal receiver 5 and the second signal receiver 6 may include a light receiver, the light transmitter may transmit light toward the first signal receiver 5 and the second signal receiver 6, and the state of the camera assembly 1 may be determined by a time difference of receiving the light by the light receiver.

Based on the camera module 200 described in the foregoing embodiments, the present disclosure also provides a method for detecting a state of a camera module, where the method can be applied to the electronic device 200 shown in fig. 1 and fig. 2. In the following embodiments, the following description will be made by taking an example in which the positional relationship between the signal transmitter 4 and the first signal receiver 5 is fixed, and the relative positional relationship between the signal transmitter 4 and the second signal receiver 6 is changed in accordance with the movement of the camera assembly 1. As shown in fig. 6, the state detection method may include the steps of:

In step 601, a phase difference of the preset signals received by the first signal receiver 5 and the second signal receiver 6 is obtained, wherein the preset signals are from the signal transmitter 4.

In the present embodiment, the phase difference may be a time difference between the first signal receiver 5 and the second signal receiver 6 receiving the preset signal. For example, the receiving time when the first signal receiver 5 receives the preset signal and the receiving time when the second signal receiver 6 receives the preset signal may be obtained, and the difference between the two receiving times is the phase difference; alternatively, in other embodiments, the phase difference may be determined according to the digital signals respectively corresponding to the first signal receiver 5 and the second signal receiver 6 by converting the preset signal received by the first signal receiver 5 into the digital signal related to the time domain, and converting the preset signal received by the second signal receiver 6 into the digital signal related to the time domain. The conversion for the preset signal may include analog-to-digital conversion and time-domain signal conversion.

In step 602, a state of the camera assembly is determined based on a relationship between the phase difference and a predetermined phase difference range, the predetermined phase difference range being associated with a separation distance between the second signal receiver and the signal transmitter.

In the present embodiment, the state of the camera module 200 may be determined by determining whether the phase difference is within a preset phase difference range. Specifically, when the phase difference falls within the preset phase difference range, the camera module 200 may be considered to be in a normal state, and when the phase difference is outside the preset phase difference range, the camera assembly 1 may be considered to be in an abnormal state. Further, when it is determined that the camera assembly 1 is in an abnormal state, the camera assembly 1 may be driven to return to a default initial state, where the default initial state may be that the camera assembly 1 is in a fully retracted state or a fully extended state, and the disclosure is not limited; alternatively, when it is determined that the camera assembly 1 is in an abnormal state, the camera assembly 1 may be driven to slide until the phase difference falls within a preset phase difference range.

For the preset phase difference range in the above embodiment, it may be obtained by:

when the camera assembly 1 is in a fully extended state, acquiring a first limit phase difference between preset signals received by the first signal receiver 5 and the second signal receiver 6; when the camera head assembly 1 is in the fully-stored state, a second limit phase difference between the preset signals received by the first signal receiver 5 and the second signal receiver 6 is obtained, and a range of the preset phase difference is determined according to the first limit phase difference and the second limit phase difference. For example, the first limit phase difference, the second limit phase difference, and a value between the first limit phase difference and the second limit phase difference may be set as the preset phase difference range. Wherein, the camera assembly 1 is in a fully extended state, that is, the camera assembly 1 moves to the outside of the electronic device 100 to a maximum stroke; the camera assembly 1 is in the fully retracted state, that is, the camera assembly 1 moves to the maximum stroke toward the inside of the electronic apparatus 100.

Based on the above embodiments, in the present disclosure, the moving distance of the camera assembly may also be determined according to the phase difference and a preset mapping relationship, where the preset mapping relationship includes a corresponding relationship between the moving distance of the camera assembly and each phase difference in the preset phase difference range. Specifically, the corresponding relationship between the separation distance between the signal transmitter 4 and the second signal receiver 6 and each phase difference within the preset phase difference range may be obtained first, and then the preset mapping relationship may be obtained according to the corresponding relationship between the separation distance between the signal transmitter 4 and the second signal receiver 6 and the movement distance of the camera head assembly 1.

To explain the technical solution of the present disclosure in detail, the following description will explain the solution of the present disclosure according to a specific embodiment. As shown in fig. 7, the state detection method may include the steps of:

in step 701, the signal transmitter 4 transmits an ultrasonic signal.

In step 702, the first signal receiver 5 receives an ultrasonic signal.

In step 703, the second signal receiver 6 receives the ultrasonic signal.

In the present embodiment, the signal transmitter 4 may include an ultrasonic transmitter, and the first signal receiver 5 and the second signal receiver 6 may include an ultrasonic receiver. As shown in fig. 8, first signal receiver 5 and signal transmitter 4 can set up side by side, second signal receiver 6 can correspond the setting with signal transmitter 4 to make the ultrasonic wave that signal transmitter 4 transmitted can directly flow to first signal receiver 5 and second signal receiver 6, be favorable to avoiding the interference of other miscellaneous signals, improve the accuracy that detects to camera module 200.

In step 704, the ultrasonic signals received by the first signal receiver 5 and the second signal receiver 6 are converted into digital signals with respect to the time domain.

In step 705, a rising edge signal is obtained according to the digital signal related to the time domain corresponding to the first signal receiver 5 and the digital signal related to the time domain corresponding to the second signal receiver 6.

In step 706, the phase difference is determined based on the width of the rising edge signal.

In this embodiment, as shown in fig. 9, the electronic device 100 may further include an analog-to-digital converter 102 and a controller 103, where the analog-to-digital converter 102 may acquire the ultrasonic signal received by the first signal receiver 5 and the ultrasonic signal received by the second signal receiver 6, and further the analog-to-digital converter 102 may convert the ultrasonic analog signal received by the first signal receiver 5 into a digital signal and convert the ultrasonic analog signal received by the second signal receiver 6 into a digital signal, and further output the digital signal to the controller 103. The controller 103 may obtain a rising edge signal according to digital signals respectively corresponding to the first signal receiver 5 and the second signal receiver 6, that is, a time difference between the first signal receiver 5 and the second signal receiver 6 receiving the ultrasonic signal may be converted into a rising edge signal, a width of the rising edge signal may be used to represent a magnitude of the time difference, and a width of the rising edge may represent a phase difference between the first signal receiver 5 and the second signal receiver 6 receiving the ultrasonic signal. Of course, the width of the falling edge signal may be obtained in other embodiments, and the disclosure is not limited thereto.

In step 707, it is determined whether the phase difference is within a preset phase difference range.

In this embodiment, step 708 is executed when the phase difference is within the preset phase difference range, and step 709 is executed when the phase difference is not within the preset phase difference range.

The preset phase difference range may be obtained by obtaining the first limit phase difference through steps 701 to 706 when the camera assembly 1 is in the fully extended state, obtaining the second limit phase difference through steps 701 to 706 when the camera assembly 1 is in the fully retracted state, and obtaining the preset limit phase difference range according to the first limit phase difference and the second limit phase difference. Wherein, the camera assembly 1 is in a fully extended state, that is, the camera assembly 1 moves to the outside of the electronic device 100 to a maximum stroke; the camera assembly 1 is in the fully retracted state, that is, the camera assembly 1 moves to the maximum stroke toward the inside of the electronic apparatus 100.

In step 708, it is determined that the camera module is in a normal operating state.

In step 709, it is determined that the camera module is in an abnormal operation state.

In step 710, the camera module is driven to return to the default initial state.

In this embodiment, when the obtained phase difference is not within the preset phase difference range, the controller 103 in the electronic device 100 may generate a driving instruction, where the driving instruction may be used to drive the camera module 200 to return to the default initial state; or drive the camera module 200 to move until the phase difference falls within the preset phase difference range.

In other embodiments, a linear relationship between each phase difference within the preset phase difference range and the movement distance of the camera assembly may be obtained to obtain a preset mapping relationship, and then the movement distance of the camera module 200 may be obtained by comparing the phase difference with the preset mapping relationship to determine the position of the camera module 200 in the electronic device 100.

Corresponding to the embodiment of the state detection method, the disclosure also provides an embodiment of a state detection device.

Fig. 10 is a block diagram illustrating a state detection apparatus applied to an electronic device, the camera module including a camera assembly, a signal transmitter, a first signal receiver, and a second signal receiver, the camera assembly being slidable along a housing of the electronic device, a relative positional relationship between the signal transmitter and the first signal receiver being fixed, and a relative positional relationship between the signal transmitter and the second signal receiver being switchable with a movement of the camera assembly according to an exemplary embodiment; referring to fig. 10, the apparatus includes an acquisition module 101 and a first determination module 102; wherein:

An obtaining module 101, configured to obtain a phase difference between preset signals received by the first signal receiver and the second signal receiver, where the preset signals are from the signal transmitter;

the first determining module 102 determines the state of the camera assembly according to a relationship between the phase difference and a preset phase difference range, where the preset phase difference range is related to a separation distance between the second signal receiver and the signal transmitter.

Referring to fig. 11, fig. 11 is a block diagram of another state detection apparatus according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and the acquiring module 101 includes a first converting unit 1011, a second converting unit 1012 and a first determining unit 1013, wherein:

a first conversion unit 1011 converting the preset signal received by the first signal receiver into a digital signal regarding a time domain;

a second conversion unit 1012 that converts the preset signal received by the second signal receiver into a digital signal regarding a time domain;

the first determining unit 1013 determines the phase difference according to digital signals corresponding to the first signal receiver and the second signal receiver, respectively.

Referring to fig. 12, fig. 12 is a block diagram of another state detection apparatus according to an exemplary embodiment, which is based on the foregoing embodiments shown in fig. 10 or fig. 11, the determining module 102 includes a second determining unit 1021 and a third determining unit 1022, where:

a second determination unit 1021 that determines whether the phase difference is within the preset phase difference range;

a third determination unit 1022, which determines that the camera assembly is in an abnormal state when the phase difference is outside the phase difference range.

Referring to fig. 13A, fig. 13A is a block diagram illustrating another state detection apparatus according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and further includes a first driving module 103; or referring to fig. 13B, fig. 13B is a block diagram of another state detection apparatus according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and further includes a second driving module 104:

the first driving module 103 is used for driving the camera assembly to recover to a default initial state when the camera assembly is determined to be in an abnormal state; alternatively, the first and second electrodes may be,

and the second driving module 104 is used for driving the camera assembly to slide until the phase difference is within the preset phase difference range when the camera assembly is determined to be in an abnormal state.

The preset phase difference range is obtained by the following method:

Referring to fig. 14, fig. 14 is a block diagram of another state detection apparatus according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and further includes:

the second determining module 105 determines the moving distance of the camera assembly according to the phase difference and a preset mapping relationship, where the preset mapping relationship includes a correspondence between the moving distance of the camera assembly and each phase difference within the preset phase difference range.

It should be noted that the first driving module 103 in the device embodiment shown in fig. 13A or the second driving module 104 in the device embodiment shown in fig. 13B may also be included in the device embodiment shown in fig. 11 or 12, and the disclosure is not limited thereto.

The second determining module 105 in the embodiment of the apparatus shown in fig. 14 may also be included in any one of the apparatus embodiments shown in fig. 11, fig. 12, fig. 13A, and fig. 13B, and the disclosure is not limited thereto.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.

Correspondingly, this disclosure still provides a state detection device of camera module, is applied to electronic equipment, camera module includes camera subassembly, signal transmitter, first signal receiver and second signal receiver, camera subassembly can be followed electronic equipment's casing slides, signal transmitter with relative position relation between the first signal receiver is fixed, signal transmitter with relative position relation between the second signal receiver can be followed camera subassembly's motion switches, includes: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: acquiring a phase difference of preset signals received by the first signal receiver and the second signal receiver, wherein the preset signals are from the signal transmitter; and determining the state of the camera assembly according to the relation between the phase difference and a preset phase difference range, wherein the preset phase difference range is related to the spacing distance between the second signal receiver and the signal transmitter.

Accordingly, the present disclosure also provides a terminal applied to an electronic device, where the camera module includes a camera assembly, a signal transmitter, a first signal receiver, and a second signal receiver, the camera assembly can slide along a housing of the electronic device, a relative position relationship between the signal transmitter and the first signal receiver is fixed, and a relative position relationship between the signal transmitter and the second signal receiver can be switched with a movement of the camera assembly, the terminal includes a memory, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by one or more processors, where the one or more programs include instructions for: acquiring a phase difference of preset signals received by the first signal receiver and the second signal receiver, wherein the preset signals are from the signal transmitter; and determining the state of the camera assembly according to the relation between the phase difference and a preset phase difference range, wherein the preset phase difference range is related to the spacing distance between the second signal receiver and the signal transmitter.

Fig. 15 is a block diagram illustrating a state detection apparatus 1500 according to an example embodiment. For example, the apparatus 1500 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 15, apparatus 1500 may include one or more of the following components: processing components 1502, memory 1504, power components 1506, multimedia components 1508, audio components 1510, input/output (I/O) interfaces 1512, sensor components 1514, and communication components 1516.

The processing component 1502 generally controls overall operation of the device 1500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 1502 may include one or more processors 1520 executing instructions to perform all or a portion of the steps of the methods described above. Further, processing component 1502 may include one or more modules that facilitate interaction between processing component 1502 and other components. For example, processing component 1502 may include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502.

The memory 1504 is configured to store various types of data to support operations at the apparatus 1500. Examples of such data include instructions for any application or method operating on the device 1500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1504 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 1506 provides power to the various components of the device 1500. The power components 1506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 1500.

The multimedia component 1508 includes a screen that provides an output interface between the device 1500 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, multimedia component 1508 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 1500 is in an operation mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 1510 is configured to output and/or input audio signals. For example, the audio component 1510 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1500 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1504 or transmitted via the communication component 1516. In some embodiments, audio component 1510 also includes a speaker for outputting audio signals.

The I/O interface 1512 provides an interface between the processing component 1502 and peripheral interface modules, which can be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 1514 includes one or more sensors for providing status assessment of various aspects of the apparatus 1500. For example, the sensor assembly 1514 can detect an open/closed state of the device 1500, the relative positioning of components, such as a display and keypad of the device 1500, the sensor assembly 1514 can also detect a change in position of the device 1500 or a component of the device 1500, the presence or absence of user contact with the device 1500, orientation or acceleration/deceleration of the device 1500, and a change in temperature of the device 1500. The sensor assembly 1514 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1516 is configured to facilitate wired or wireless communication between the apparatus 1500 and other devices. The apparatus 1500 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 1516 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1516 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 1504 comprising instructions, executable by the processor 1520 of the apparatus 1500 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a camera module which characterized in that includes:

2. The camera module of claim 1, further comprising:

3. The camera module of claim 2, wherein the signal transmitter is located alongside the first signal receiver and both connected to the camera assembly, and the second signal receiver is connected to the base and located in correspondence with the signal transmitter.

4. The camera module of claim 1, wherein the signal transmitter comprises an ultrasonic signal transmitter and the first and second signal receivers each comprise an ultrasonic receiver.

5. An electronic device, comprising:

a housing comprising an opening;

the camera module of any of claims 1-4, comprising a camera assembly and a base, the camera assembly reciprocally slidable with respect to the housing to extend out of the housing through the opening or retract into the housing.

6. The state detection method of the camera module is characterized in that the camera module is applied to electronic equipment, the camera module comprises a camera assembly, a signal transmitter, a first signal receiver and a second signal receiver, the camera assembly can slide along a shell of the electronic equipment, the relative position relation between the signal transmitter and the first signal receiver is fixed, and the relative position relation between the signal transmitter and the second signal receiver can be switched along with the movement of the camera assembly;

the state detection method comprises the following steps:

7. The method according to claim 6, wherein the obtaining a phase difference between the preset signals received by the first signal receiver and the second signal receiver comprises:

8. The detection method according to claim 6, wherein determining the state of the camera assembly according to the relationship between the phase difference and a preset phase difference range comprises:

9. The detection method according to claim 8, further comprising:

10. The detection method according to claim 6, wherein the preset phase difference range is obtained by:

11. The detection method according to claim 6, further comprising:

12. The state detection device of the camera module is characterized by being applied to electronic equipment, wherein the camera module comprises a camera assembly, a signal transmitter, a first signal receiver and a second signal receiver, the camera assembly can slide along a shell of the electronic equipment, the relative position relation between the signal transmitter and the first signal receiver is fixed, and the relative position relation between the signal transmitter and the second signal receiver can be switched along with the movement of the camera assembly;

The state detection device includes:

13. The detection apparatus according to claim 12, wherein the acquisition module comprises:

14. The detection apparatus according to claim 12, wherein the determination module comprises:

15. The detection device of claim 14, further comprising:

16. The detection apparatus according to claim 12, wherein the preset phase difference range is obtained by:

17. The detection device of claim 12, further comprising:

18. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, carry out the steps of the method according to any one of claims 6-11.

19. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to carry out the steps of the method according to any one of claims 6-11 when executed.