CN114793268B

CN114793268B - Camera control method and device and vehicle

Info

Publication number: CN114793268B
Application number: CN202210204776.XA
Authority: CN
Inventors: 王树利; 王天功; 王本强
Original assignee: Hisense Group Holding Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2023-11-14
Anticipated expiration: 2042-03-03
Also published as: CN114793268A

Abstract

The embodiment of the application discloses a camera control method, a camera control device and a vehicle, and belongs to the technical field of electronics. The method comprises the following steps: the controller obtains the state information of the camera. And under the condition that the camera is determined to be in an on state based on the state information and a control instruction sent by the user interaction component is received, responding to the control instruction, and applying a target voltage to the electric control membrane component by the controller. The atomization degree of the electric control membrane component changes to the target atomization degree after the target voltage is applied, and the control instruction is generated by the user interaction component in response to the operation of a user. Because the lens of the camera is covered with the electric control film component, when the atomization degree of the electric control film component changes, the image acquired by the camera is clear or fuzzy. Therefore, the embodiment of the application can control the definition of the image acquired by the camera based on the atomization degree of the electric control film assembly so as to control the working state of the camera, thereby achieving the effect of protecting the privacy of the user.

Description

Camera control method and device and vehicle

Technical Field

The embodiment of the application relates to the technical field of electronics, in particular to a camera control method and device and a vehicle.

Background

Currently, cameras are increasingly used. For example, the driving state of the driver may be detected by an in-vehicle image acquired by an in-vehicle camera.

In the related art, when the camera is in an on state, a user can acquire corresponding information through an image acquired by the camera. However, when the camera is in an on state, the camera can continuously collect images, and in the process of continuously collecting images, user privacy is easily revealed, so that safety problems are caused.

Disclosure of Invention

The embodiment of the application provides a camera control method, a camera control device and a vehicle, which can solve the problem that a camera is easy to reveal user privacy. The technical scheme is as follows:

in one aspect, an electronic control film assembly is covered on a lens of a camera, the electronic control film assembly and the camera are both connected with a controller, and the controller is connected with a user interaction assembly;

the method comprises the following steps:

the controller acquires state information of the camera;

under the condition that the camera is in an on state based on the state information and a control instruction sent by the user interaction component is received, responding to the control instruction, the controller applies a target voltage to the electric control membrane component;

And the control instruction is generated by the user interaction component in response to the operation of a user.

Optionally, the control instruction carries the target atomization degree;

the controller, in response to the control command, applies a target voltage to the electrically controlled membrane assembly, comprising:

acquiring a corresponding relation between atomization degrees and control voltages, wherein the corresponding relation comprises a plurality of atomization degrees and a plurality of control voltages which are in one-to-one correspondence with the atomization degrees;

and acquiring a control voltage corresponding to the target atomization degree from the corresponding relation, and taking the acquired control voltage as the target voltage.

Optionally, the user interaction component is a display, and a plurality of atomization control options are displayed in the display, and each atomization control option in the plurality of atomization control options corresponds to one atomization degree;

the control instruction is generated by the display when the trigger operation of the user on a target atomization control option is detected, the target atomization degree is the atomization degree corresponding to the target atomization control option, and the target atomization control option is any one of the plurality of atomization control options.

Optionally, the camera is a vehicle-mounted camera on a vehicle, and the display is a central control panel on the vehicle.

Optionally, the user interaction component is a plurality of physical keys, and each physical key in the plurality of physical keys corresponds to one atomization degree;

the control instruction is generated by a target physical key when the trigger operation of the user is detected, the target atomization degree is the atomization degree corresponding to the target physical key, and the target physical key is any one of the physical keys.

Optionally, the camera is an onboard camera on a vehicle, and the plurality of physical keys are configured beside a seat in the vehicle.

Optionally, the target atomization degree is an atomization degree capable of shielding the camera, or is an atomization degree capable of seeing the camera through the electric control film assembly.

In another aspect, a camera control apparatus is provided, the apparatus including a processor configured to:

acquiring state information of the camera;

under the condition that the camera is in an on state based on the state information and a control instruction sent by the user interaction component is received, a target voltage is applied to the electric control membrane component in response to the control instruction; and the control instruction is generated by the user interaction component in response to the operation of a user.

Optionally, the control instruction carries the target atomization degree;

the processor is configured to:

In another aspect, a vehicle is provided, the vehicle including a camera, an electrically controlled membrane assembly, a controller, and a vehicle-to-machine system;

the electronic control membrane assembly covers the camera, the electronic control membrane assembly and the camera are both connected with the controller, the controller is connected with the vehicle-mounted system, a user interaction assembly is configured in the vehicle-mounted system, and the user interaction assembly is a central control panel or a physical key;

the user interaction component is used for responding to the operation of a user to generate a control instruction and sending the control instruction to the controller;

The controller is used for acquiring the state information of the camera;

the controller is further used for responding to the control instruction and applying target voltage to the electric control film component under the condition that the camera is determined to be in an on state based on the state information and the control instruction sent by the user interaction component is received;

wherein the atomization degree of the electrically controlled membrane assembly changes to a target atomization degree after the target voltage is applied.

In another aspect, a computer readable storage medium having instructions stored thereon that when executed by a processor implement any of the steps of the camera control method described above is provided.

In another aspect, a computer program product is provided containing instructions that, when run on a computer, cause the computer to perform any of the steps of the camera control method described above.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

in the embodiment of the application, when the controller determines that the camera is in the on state and receives the control instruction sent by the user interaction component, the controller applies voltage to the electric control membrane component so as to change the atomization degree of the electric control membrane component. Because the lens of the camera is covered with the electric control film component, when the atomization degree of the electric control film component changes, the image acquired by the camera is clear or fuzzy. Therefore, the embodiment of the application can control the definition of the image acquired by the camera based on the atomization degree of the electric control film assembly so as to control the working state of the camera, thereby achieving the effect of protecting the privacy of the user.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a system architecture according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an electrically controlled membrane according to an embodiment of the present application;

FIG. 3 is a schematic view of a vehicle according to an embodiment of the present application;

fig. 4 is a flowchart of a method for controlling a camera according to an embodiment of the present application;

FIG. 5 is a graph showing the correspondence between the atomization degree and the control voltage according to the embodiment of the present application;

FIG. 6 is a graph showing the effect of an electrically controlled membrane module according to an embodiment of the present application after voltage is applied;

fig. 7 is a flowchart of a method for controlling a camera according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a user terminal according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a server according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings.

Before explaining the camera control method provided by the embodiment of the application in detail, an application scene and a system architecture provided by the embodiment of the application are introduced.

The camera is a video input device, also called a computer eye, an electronic eye, etc., and is widely used in video conference, telemedicine, etc. For example, people can know the driving state of a driver in real time through a driver image acquired by an on-board camera in an automobile to control the running of the vehicle based on the driving state of the driver. For another example, people may communicate with remote video via a camera on the terminal device.

At present, the vehicle-mounted camera can be widely applied to various vehicle systems, such as a DMS (Driver Monitoring System, driver detection system), a vehicle recorder and other systems, and the functions of driver state detection, face recognition and the like can be realized by using the systems. The driver state monitoring function may include fatigue detection, distraction detection, eye tracking, other dangerous behavior detection (such as dangerous behavior of making a call, eating, etc.), etc. The face recognition function may include identity recognition, feature recognition, emotion recognition, etc. The vehicle-mounted camera brings convenience to the user through the acquired images and/or videos, and meanwhile, the privacy of the user is easy to reveal, so that the safety problem is caused. Mainly because the user can not acquire the working state of the camera, no effective means is available to make the camera in a closed state when the user does not want the camera to work.

In addition, cameras are generally arranged on terminal equipment of people at present. The camera is arranged on the terminal equipment, so that people can communicate face to face through videos conveniently. However, in actual life, personal terminal devices are generally placed in private places such as private offices and bedrooms, and image information collected by cameras of the terminal devices is generally strong in privacy. Moreover, in real life, a situation that people forget to close the terminal device and forget to close the camera is often caused, and once the situation is caused, various private information of individuals can be leaked accidentally through the camera, so that safety problems are caused. Therefore, a method for feeding back the working state of the camera is needed, so that people can know the working state of the camera in real time.

At present, the following schemes are generally adopted to feed back the working state of the camera.

One solution is that the user can control the camera to turn on or off through the system software. This solution is relatively simple, but if the system software is hacked by an lawbreaker, they can open the camera in the background to collect the user image information, in which case the user is unaware that the camera is in the open state, and therefore there is a certain risk in this solution.

The other scheme is that an indicator lamp can be added at the periphery of the camera to indicate the working state of the camera. However, the scheme can only passively indicate the working state of the camera, and can not control the opening or closing of the camera.

Another solution is to design the camera as a hidden camera, such as a lifting camera. When the camera does not work, the camera is moved to a shielding area to shield, and when the camera is required to work, the camera is moved to a non-shielding area. Thus, the user can acquire the working state of the camera according to the position of the camera. However, the structure of this solution is complex, and components such as a motor and a transmission member are added to make the camera movable, so that the solution cost is high.

Based on the above problems, an embodiment of the present application provides a method for controlling a camera, where an electronic control film assembly is covered on a lens of the camera, and a voltage is applied to the electronic control film assembly to change an atomization degree of the electronic control film assembly, so as to control a working state of the camera.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a system architecture according to an exemplary embodiment. The system comprises a camera 101, an electronically controlled membrane assembly 102, a controller 103 and a user interaction assembly 104. Wherein, automatically controlled membrane module 102 covers on the camera 101's camera lens, and camera 101 and automatically controlled membrane module 102 all are connected with controller 103, and controller 103 still is connected with user interaction subassembly 104. The connection may be a wired or wireless connection, which is not limited by the embodiments of the present application.

Wherein the electrically controlled membrane assembly 102 is configured to vary the degree of atomization of the electrically controlled membrane based on the applied voltage. The controller 103 is configured to collect status information of the camera, and determine a status of the camera based on the collected status information. The user interaction component 104 is configured to collect a control instruction, and send the control instruction to the controller 103, where the control instruction is a control instruction triggered by an operation of the user on the user interaction component 104. In addition, the controller 103 is further configured to apply a voltage to the electrically controlled membrane assembly 102 based on the control command when it is determined that the camera is in the on state. The implementation process of determining the camera status and applying the voltage to the electronically controlled membrane assembly 102 by the controller 103 is described in detail later herein.

The electrically controlled membrane assembly 102 is a liquid crystal membrane capable of changing the transparency (degree of fogging) of the membrane under the action of an external electric field. The working principle of the electric control membrane component 102 is as follows: since the liquid crystal has refractive index anisotropy, as shown in fig. 2, before the electric control film is energized (i.e., when the voltage applied to the electric control film is 0V), the liquid crystal molecules are randomly arranged, and the incident light is scattered through, resulting in the film exhibiting a high haze opaque state. After the electric control film is electrified, when the voltage applied to the electric control film is gradually increased, liquid crystal molecules are orderly arranged along with the direction of an electric field, and incident light rays can directly pass through the electric control film, so that the atomization degree of the film is gradually reduced, and a transparent state is presented.

Based on the working principle of the electric control film assembly 102, the atomization degree of the electric control film can be changed by applying voltage to the electric control film assembly 102, so that the working state of the camera is controlled.

The electrically controlled membrane assembly may be, for example, PDLC (Polymer Dispersed Liquid Crystal ), to which embodiments of the present application are not limited.

The controller 103 may be a controller such as an MCU (microcontroller unit, micro control unit), a server cluster including a plurality of servers, or a cloud computing service center.

The user interaction component 103 can be any electronic product that can interact with a user by one or more means, such as a keyboard, touchpad, touch screen, remote control, voice interaction, or handwriting device. Such as a PC (Personal Computer ), cell phone, smart phone, PDA (Personal Digital Assistant ), palm top computer PPC (Pocket PC), tablet computer, etc.

Optionally, the camera, the electronically controlled membrane assembly, the controller, and the user interaction assembly in the system architecture may be integrated on the vehicle at the same time. Fig. 3 is a schematic structural diagram of a vehicle according to an embodiment of the present application. As shown in fig. 3, the vehicle comprises a vehicle-mounted camera, an electric control membrane assembly, a controller and a vehicle system. The electronic control film assembly covers the vehicle-mounted camera, the electronic control film assembly and the vehicle-mounted camera are connected with the controller, the controller is connected with the vehicle-mounted system, and the user interaction assembly is configured in the vehicle-mounted system, namely, the user interaction assembly can be integrated on the vehicle-mounted system, and can be a central control panel or a physical key. The controller comprises a front end detection unit, a control input unit and a control output unit, wherein the control output unit can be a power switch.

The user interaction component is used for responding to the operation of a user to generate a control instruction and sending the control instruction to the controller. The front end detection unit is used for collecting state information of the vehicle-mounted camera and determining the state of the camera based on the collected state information. The control input unit is used for receiving control instructions sent by the vehicle machine system (user interaction component). The control output unit is used for controlling the power supply to output on-off based on the control instruction, and controlling the voltage applied to the electric control membrane assembly when the power supply is in a conducting state, wherein the power supply is used for applying the voltage to the electric control membrane assembly.

In addition, the system can be integrated on the user terminal to control the camera on the user terminal so as to protect the privacy of the user. Of course, the system may also be integrated on other devices to implement the method provided by the embodiment of the present application, which is not described herein in detail.

The following describes a camera control method provided by the embodiment of the present application in detail.

Fig. 4 is a flowchart of a camera control method according to an embodiment of the present application, where the method is applied to a controller. Referring to fig. 4, the method includes the following steps.

Step 401: the controller obtains the state information of the camera.

The state information of the camera indicates a working state of the camera, such as whether the camera is currently in an on state or an off state. The status information may be signals such as power, clock, enable, etc. required for the operation of the camera.

The controller uses different detection circuits to detect the corresponding power, clock, enable, etc. signals. When the power supply is not powered on and no signal is detected, the camera is in a closed state. When the clock signal valid output level is detected, the camera is indicated to be in an on state, and when the clock signal non-output level is detected, the camera is indicated to be in an off state. The enabling signal is used for resetting the camera, and after the camera is determined to be in an on state based on the power signal or the clock signal and the like, if the enabling signal is detected, the camera is indicated to be in an off state currently.

The controller may determine the state of the camera based on a single one of the above-described power, clock, enable, etc., or may determine the state of the camera based on all of the above-described signals.

Alternatively, the controller may collect a power signal, and determine the state of the camera based on the power signal. If the power supply is powered on and has a signal, the camera is indicated to be in an on state currently.

Optionally, the controller may also collect a clock signal, based on which the state of the camera is determined. If the clock signal is at an effective output level, the camera is indicated to be in an on state.

Alternatively, the controller may collect a power signal and an enable signal, and determine the state of the camera based on the power signal and the enable signal. If the power supply is powered on and a signal is generated, and an enabling signal is not detected in the process, the camera is indicated to be in an on state currently.

Optionally, the controller may also collect a clock signal and an enable signal, and determine the state of the camera based on the clock signal and the enable signal. If the clock signal is actively outputting a level and no enabling signal is detected in the process, the camera is indicated to be in an on state.

Of course, the controller may also collect other signals that can indicate the state of the camera, and determine the state of the camera based on the signals, which is not limited in the embodiment of the present application.

In addition, the camera may be an onboard camera of the vehicle, and step 401 may be implemented by a front-end detection unit of the controller in the system architecture shown in fig. 3. The implementation process of the front end detecting unit for obtaining the state information of the camera may refer to the implementation process of the controller for obtaining the state information of the camera in the above embodiment, which is not described herein again.

Step 402: and under the condition that the camera is determined to be in an on state based on the state information and a control instruction sent by the user interaction component is received, responding to the control instruction, and applying a target voltage to the electric control membrane component by the controller.

Wherein the control instruction is generated by the user interaction component in response to a user operation. The atomization degree of the electrically controlled membrane assembly changes to a target atomization degree after the target voltage is applied.

The target atomization degree is the atomization degree corresponding to the clear or fuzzy image which the user wants to acquire through the camera. The target atomization level is illustratively an atomization level that can block the camera or an atomization level that can see the camera through the electronically controlled membrane assembly. Of course, the target atomization degree may also be an atomization degree corresponding to a blur level of an image that the user wants to acquire through the camera. The embodiment of the present application is not limited thereto.

In some embodiments, the user interaction component is a display. The display has a plurality of atomizing control options displayed therein, each of the plurality of atomizing control options corresponding to a degree of atomization. The control instruction is generated by the display when the trigger operation of the user on the target atomization control option is detected, wherein the target atomization degree is the atomization degree corresponding to the target atomization control option, and the target atomization control option is any one of a plurality of atomization control options.

Specifically, there are multiple virtual buttons on the interface of the display, with the different virtual buttons indicating different fogging control options. Atomization control options such as "clear processing", "1-stage blurring processing", "2-stage blurring processing", and the like, each of which corresponds to a degree of atomization. The atomization degree corresponding to the atomization control option of clear processing is the lowest, the atomization degree corresponding to the atomization control option of level 1 fuzzy processing is the second, and the higher the level of fuzzy processing is, the higher the atomization degree corresponding to the atomization control option is.

Correspondingly, when a user clicks a certain atomization control option on the display, the display generates a control instruction based on the operation, wherein the control instruction carries the atomization degree corresponding to the atomization control option clicked by the user, namely the target atomization degree. Therefore, when the user thinks that the camera can clearly collect the image, the user can click the atomizing control option of clear processing on the display interface, after clicking the operation of the atomizing control option, the display generates a control instruction based on the operation, and the control instruction carries the atomizing degree corresponding to the atomizing control option of clear processing, namely the target atomizing degree. The subsequent controller can apply a target voltage to the electrically controlled membrane assembly based on the target atomization degree so as to make the electrically controlled membrane assembly transparent without shielding the lens of the camera.

In a scenario where the camera is applied to a vehicle, the display in the above embodiment may be a center control panel on the vehicle. The user operates on the center control panel, and the center control panel generates a control instruction based on the operation. The follow-up control output unit applies voltage to the electric control film assembly based on the control instruction so as to change the atomization degree of the electric control film assembly and further control the working state of the camera. In this case, the mode in which the center control panel generates the control command may also be referred to as a soft input mode.

In addition, the display may be an APP (application program) on the user terminal, where the APP interface is provided with a plurality of virtual buttons (atomization control options), and the user generates a control instruction by operating on the APP, and then applies a voltage to the electric control film assembly based on the control instruction, so as to change the atomization degree of the electric control film assembly, and further control the working state of the camera.

In some embodiments, the user interaction component is a plurality of physical keys, each physical key of the plurality of physical keys corresponding to a degree of fogging. The control instruction is generated by the target physical key when the trigger operation of the user is detected, the target atomization degree is the atomization degree corresponding to the target physical key, and the target physical key is any one of the physical keys.

Specifically, each physical key of the plurality of physical keys corresponds to a degree of fogging. By way of example, the plurality of physical keys may be "clear process keys", "level 1 blur process keys", "level 2 blur process keys", and the like. The atomization degree corresponding to the clear processing key is the lowest, the atomization degree corresponding to the 1-level fuzzy processing key is the second, and the higher the level of the atomization degree corresponding to the fuzzy processing key is, the higher the level of the atomization degree corresponding to the fuzzy processing key is.

Correspondingly, when a user clicks a certain physical key, the physical key generates a control instruction based on the operation, and the control instruction carries the atomization degree corresponding to the physical key clicked by the user, namely the target atomization degree. Therefore, when the user thinks that the camera can clearly acquire the image, the user can click the clear processing key, the clear processing key generates a control instruction based on the operation, and the control instruction carries the atomization degree corresponding to the clear processing key, namely, the target atomization degree is determined. The controller can then apply a target voltage to the electrically controlled membrane assembly based on the target atomization level to transparence the electrically controlled membrane assembly without obscuring the lens of the camera.

In a scenario where the camera is applied to a vehicle, the plurality of physical keys in the above embodiments may be disposed beside a seat within the vehicle. The user may click on a physical key that generates control instructions based on the operation. The follow-up control output unit applies voltage to the electric control film assembly based on the control instruction so as to change the atomization degree of the electric control film assembly and further control the working state of the camera. In this scenario, multiple physical buttons may also be placed in the steering wheel or center console area in the vehicle, and the control command may be sent to the controller through a bus such as CAN (Controller Area Network ), LIN (Local Interconnect Network, local interconnect network), or an independent analog signal. In this scenario, the manner in which the physical key generates the control command is also referred to as a hard input manner.

The above-described embodiments are implementations of generating control instructions. After the control instruction is generated, the user interaction module sends the control instruction to the controller. And when the controller determines that the camera is in an on state and receives the control instruction, applying a target voltage to the electric control membrane assembly based on the step 402.

In some embodiments, the implementation of step 402 may be: and acquiring a corresponding relation between the atomization degree and the control voltage, wherein the corresponding relation comprises a plurality of atomization degrees and a plurality of control voltages corresponding to the atomization degrees one by one. And acquiring a control voltage corresponding to the target atomization degree from the corresponding relation, and taking the acquired control voltage as a target voltage.

The atomization degree and the control voltage are in one-to-one correspondence, and after the target atomization degree is determined based on the control instruction, the target voltage corresponding to the target atomization degree can be determined.

Fig. 5 is a map of the correspondence between the atomization degree and the control voltage. As shown in fig. 5, each atomization level corresponds to a control voltage. When the voltage is 0V, namely the electric control film assembly is not electrified, the atomization degree of the electric control film assembly is 92.6%, and the electric control film assembly presents a high haze state, and under the condition, the camera is shielded by the electric control film assembly, and the camera cannot acquire images. When the electric control film assembly is electrified, along with the increase of the voltage value, the atomization degree of the electric control film assembly is lower and lower, and the definition of an image acquired by a user through a camera is higher and higher.

Fig. 6 is a graph showing the effect of the electrically controlled membrane module after a voltage is applied. It can be seen that the atomization degree of the electric control film assembly is higher at this time, and the camera is shielded by the electric control film assembly.

Control of the camera may be achieved based on steps 401-402 described above. The method of the embodiment shown in fig. 4, in which the camera is used in a vehicle, will be further described with reference to fig. 7.

Fig. 7 is a flowchart of a vehicle-mounted camera control method provided by an embodiment of the present application. As shown in fig. 7, the vehicle is first powered up, and the controller is powered up to a work preparation state. The front end detection unit acquires the state information of the camera and determines that the camera is in an on state. The control input unit judges whether voltage output is needed or not by detecting a vehicle-machine system (user interaction component), namely, whether power is supplied to the electric control film component or not. If voltage output is needed, the control output unit makes the electric control film component transparent by applying control voltage, so that the camera can normally shoot images. If voltage output is not needed, the control output unit does not apply voltage to the electric control film assembly, and the electric control film assembly presents a high haze effect, so that the camera cannot shoot images, and the effect of protecting the privacy of a user can be achieved.

In the embodiment of the application, under the condition that the camera is determined to be in an on state and a control instruction sent by the user interaction component is received, the controller applies voltage to the electric control film component based on the control instruction so as to change the atomization degree (transparency) of the electric control film component and further change the working state of the camera. Therefore, the user can change the atomization degree of the electric control film assembly to control the definition of the camera lens through the mode of generating the control instruction by operating on the user interaction assembly, so that the working state of the camera is known, and the requirement of the user on privacy protection is met.

All the above optional technical solutions may be combined according to any choice to form an optional embodiment of the present application, and the embodiments of the present application will not be described in detail.

The embodiment of the application also provides a camera control device which can be realized by software, hardware or a combination of the two. The camera control apparatus includes a processor for:

acquiring state information of a camera;

under the condition that the camera is determined to be in an on state based on the state information and a control instruction sent by the user interaction component is received, a target voltage is applied to the electric control membrane component in response to the control instruction; the atomization degree of the electric control membrane component changes to the target atomization degree after the target voltage is applied, and the control instruction is generated by the user interaction component in response to the operation of a user.

Optionally, the control instruction carries a target atomization degree;

the processor is used for:

acquiring a corresponding relation between the atomization degree and the control voltage, wherein the corresponding relation comprises a plurality of atomization degrees and a plurality of control voltages corresponding to the atomization degrees one by one;

and acquiring a control voltage corresponding to the target atomization degree from the corresponding relation, and taking the acquired control voltage as a target voltage.

Optionally, the user interaction component is a display, and a plurality of atomization control options are displayed in the display, wherein each of the plurality of atomization control options corresponds to one atomization degree;

the control instruction is generated by the display when the trigger operation of the user on the target atomization control options is detected, the target atomization degree is the atomization degree corresponding to the target atomization control options, and the target atomization control options are any one of the atomization control options.

Optionally, the camera is a vehicle-mounted camera on the vehicle, and the display is a central control panel on the vehicle.

the control instruction is generated by the target physical key when the trigger operation of the user is detected, the target atomization degree is the atomization degree corresponding to the target physical key, and the target physical key is any one of the physical keys.

Optionally, the camera is an onboard camera on the vehicle, and the plurality of physical keys are disposed beside a seat in the vehicle.

Optionally, the target atomization degree is the atomization degree capable of shielding the camera, or the atomization degree capable of seeing the camera through the electric control film assembly.

It should be noted that: in the camera control device provided in the above embodiment, when the camera is controlled, only the division of the above functional modules is used for illustration, in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the camera control device and the camera control method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.

Fig. 8 shows a block diagram of a user terminal 800 according to an exemplary embodiment of the present application. In general, the user terminal 800 includes: a processor 801 and a memory 802.

Processor 801 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 801 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Arra, field programmable gate array), PLA (Programmable Logic Arra, programmable logic array). The processor 801 may also include a main processor, which is a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 801 may integrate a GPU (Graphics Processing Unit, image processor) for taking care of rendering and rendering of the content that the display screen is required to display. In some embodiments, the processor 801 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.

Memory 802 may include one or more computer-readable storage media, which may be non-transitory. Memory 802 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 802 is used to store at least one instruction for execution by processor 801 to implement the camera control method provided by the method embodiments of the present application.

In some embodiments, the user terminal 800 may further optionally include: a peripheral interface 803, and at least one peripheral. The processor 801, the memory 802, and the peripheral interface 803 may be connected by a bus or signal line. Individual peripheral devices may be connected to the peripheral device interface 803 by buses, signal lines, or a circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 804, a display 805, a camera assembly 806, audio circuitry 807, a positioning assembly 808, and a power supply 809.

Those skilled in the art will appreciate that the structure shown in fig. 8 is not limiting and that more or fewer components than shown may be included or certain components may be combined or a different arrangement of components may be employed.

Fig. 9 is a schematic diagram illustrating a server architecture according to an exemplary embodiment. The server may be a server in a backend server cluster. Specifically, the present invention relates to a method for manufacturing a semiconductor device.

The server 900 includes a Central Processing Unit (CPU) 901, a system memory 904 including a Random Access Memory (RAM) 902 and a Read Only Memory (ROM) 903, and a system bus 905 connecting the system memory 904 and the central processing unit 901. The server 900 also includes a basic input/output system (I/O system) 906, and a mass storage device 907 for storing an operating system 913, application programs 914, and other program modules 915, which facilitate the transfer of information between the various devices within the computer.

The basic input/output system 906 includes a display 908 for displaying information and an input device 909, such as a mouse, keyboard, or the like, for user input of information. Wherein both the display 908 and the input device 909 are coupled to the central processing unit 901 via an input output controller 910 coupled to the system bus 905. The basic input/output system 906 may also include an input/output controller 910 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, the input-output controller 910 also provides output to a display screen, a printer, or other type of output device.

The mass storage device 907 is connected to the central processing unit 901 through a mass storage controller (not shown) connected to the system bus 905. The mass storage device 907 and its associated computer-readable media provide non-volatile storage for the server 900. That is, the mass storage device 907 may include a computer-readable medium (not shown), such as a hard disk or CD-ROM drive.

Computer readable media may include computer storage media and communication media without loss of generality. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology, CD-ROM, DVD or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will recognize that computer storage media are not limited to the ones described above. The system memory 904 and mass storage device 907 described above may be collectively referred to as memory.

According to various embodiments of the application, the server 900 may also operate by a remote computer connected to the network through a network, such as the Internet. I.e., the server 900 may be connected to the network 912 through a network interface unit 911 coupled to the system bus 905, or other types of networks or remote computer systems (not shown) may be coupled using the network interface unit 911.

The memory also includes one or more programs, one or more programs stored in the memory and configured to be executed by the CPU. The one or more programs include instructions for performing the camera control method provided by the embodiments of the present application.

The embodiment of the application also provides a non-transitory computer readable storage medium, which when the instructions in the storage medium are executed by a processor of a server, enables the server to execute the camera control method provided by the embodiment.

The embodiment of the application also provides a computer program product containing instructions, which when run on a server, cause the server to execute the camera control method provided by the embodiment.

It should be noted that, the information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, presented data, etc.), and signals related to the embodiments of the present application are all authorized by the user or are fully authorized by the parties, and the collection, use, and processing of the related data is required to comply with the relevant laws and regulations and standards of the relevant countries and regions. For example, the images acquired when the camera related to the embodiment of the application is in the on state are all acquired under the condition of full authorization.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The foregoing description of the preferred embodiments of the present application is not intended to limit the embodiments of the present application, but is intended to cover any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the embodiments of the present application.

Claims

1. The camera control method is characterized in that an electric control film assembly is covered on a lens of the camera, the electric control film assembly and the camera are both connected with a controller, and the controller is connected with a user interaction assembly; the method comprises the following steps:

the controller acquires state information of the camera, wherein the state information comprises at least one of a power signal, a clock signal and an enabling signal required by the operation of the camera;

the controller determines that the camera is in an on state when the power signal is a power-on signal, or the clock signal is an effective output level, or the power signal is a power-on signal and the enable signal is not detected, or the clock signal is an effective output level and the enable signal is not detected;

The controller obtains a corresponding relation between the atomization degree and the control voltage under the condition that the camera is in an on state based on the state information and a control instruction sent by the user interaction assembly is received, wherein the corresponding relation comprises a plurality of atomization degrees and a plurality of control voltages which are in one-to-one correspondence with the plurality of atomization degrees, and the control instruction carries a target atomization degree;

the controller obtains control voltage corresponding to the target atomization degree from the corresponding relation, takes the obtained control voltage as target voltage and applies the target voltage to the electric control membrane component;

wherein, in the case that the user interaction component is a display, the display displays a plurality of atomization control options, each of the atomization control options corresponds to one atomization degree, the control instruction is generated by the display when the triggering operation of the user on a target atomization control option is detected, the target atomization control option is any one of the plurality of atomization control options, and the target atomization degree is the atomization degree corresponding to the target atomization control option; when the user interaction component is a plurality of physical keys, each physical key corresponds to one atomization degree, the control instruction is generated by a target physical key when the triggering operation of the user is detected, the target physical key is any one of the physical keys, the target atomization degree is the atomization degree corresponding to the target physical key, and the number of the atomization control options and the number of the physical keys are both larger than 2; the atomization degree of the electric control membrane assembly changes to a target atomization degree after the target voltage is applied.

2. The method of claim 1, wherein the camera is an onboard camera on a vehicle and the display is a center control panel on the vehicle.

3. The method of claim 1, wherein the camera is an onboard camera on a vehicle, and the plurality of physical keys are disposed beside a seat within the vehicle.

4. A method according to any one of claims 1 to 2, wherein the target level of atomization is a level of atomization which is capable of obscuring the camera or is capable of being seen through the electrically controlled membrane assembly.

5. A camera control apparatus, the apparatus comprising a processor configured to:

acquiring state information of the camera, wherein the state information comprises at least one of a power signal, a clock signal and an enabling signal required by the operation of the camera;

determining that the camera is in an on state when the power supply signal is a power-on signal, or the clock signal is an effective output level, or the power supply signal is a power-on signal and the enabling signal is not detected, or the clock signal is an effective output level and the enabling signal is not detected;

Under the condition that the camera is in an on state based on the state information and a control instruction sent by a user interaction component is received, acquiring a corresponding relation between the atomization degree and the control voltage, wherein the corresponding relation comprises a plurality of atomization degrees and a plurality of control voltages which are in one-to-one correspondence with the atomization degrees, and the control instruction carries a target atomization degree;

acquiring control voltage corresponding to the target atomization degree from the corresponding relation, taking the acquired control voltage as target voltage and applying the target voltage to an electric control membrane assembly;

6. The vehicle is characterized by comprising a camera, an electric control film assembly, a controller and a vehicle-to-vehicle system;

the controller is used for acquiring state information of the camera, wherein the state information comprises at least one of a power signal, a clock signal and an enabling signal required by the operation of the camera;

the controller is further configured to determine that the camera is in an on state when the power signal is a power-on signal, or the clock signal is at an effective output level, or the power signal is a power-on signal and the enable signal is not detected, or the clock signal is at an effective output level and the enable signal is not detected; under the condition that the camera is in an on state based on the state information and a control instruction sent by the user interaction component is received, acquiring a corresponding relation between the atomization degree and the control voltage, wherein the corresponding relation comprises a plurality of atomization degrees and a plurality of control voltages which are in one-to-one correspondence with the atomization degrees, and the control instruction carries a target atomization degree; acquiring control voltage corresponding to the target atomization degree from the corresponding relation, taking the acquired control voltage as target voltage and applying the target voltage to the electric control film assembly;