Camera module, electronic equipment and camera control method and device

By introducing a heating layer into the cover of the camera module and controlling its working state with the processor, the fogging problem of the electronic device camera module when temperature and environment changes are solved, and the thinness and wide application effect is achieved.

CN119893247APending Publication Date: 2025-04-25BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202311377048.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-10-23
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

Electronic devices with cameras are prone to fogging problems when temperature changes and environment changes, resulting in reduced shooting quality and affecting the service life of equipment with weaker waterproofing levels. The prior art camera anti-fog methods have problems such as complex structure, large size and limited application range.

Method used

A camera module is designed, and its cover body includes at least one heating layer. The working state of the heating layer is controlled according to the thermodynamic parameters through the connection between the processor and the temperature sensor and the humidity sensor, thereby realizing the prevention and control of fog.

Benefits of technology

This technology effectively solves the fogging problem of camera modules, without increasing structure or space occupation, and is adapted to different types of electronic equipment, improving the thinness and application range of camera modules.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a camera module, electronic equipment and a camera control method and device. The camera module comprises a camera main body and a cover body. The cover body is arranged on the light inlet side of the camera main body, the cover body comprises at least one heating layer, and the heating layer is conductively connected with the processor. Wherein the processor is electrically connected with the temperature sensor and the humidity sensor so as to send a control signal to the heating layer according to thermodynamic parameters obtained by the temperature sensor and the humidity sensor. The heating layer can perform heating control through the processor according to thermodynamic parameters of the temperature sensor and the humidity sensor, and the fogging problem of the camera module is solved without material consumption and manual disassembly and cleaning. As the cover body is the original structure of the camera module, not only can the structure and space occupation caused by the arrangement of a heating layer be avoided, but also different types of electronic equipment can be adapted, the lightness and thinness of the camera module are improved, and the application range of the camera module is widened.
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Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular to a camera module, an electronic device, and a camera control method and device. Background Art

[0002] The lens of electronic devices with cameras may fog up during use due to temperature changes, scene and environment changes, etc. Fogging not only reduces the shooting quality, but also greatly reduces the service life of electronic devices with weak waterproof levels in humid environments.

[0003] However, in the related technologies, the anti-fog means for cameras have problems such as complex structure, large size, and only applicable to a certain electronic device, and the scope of application is limited. Summary of the invention

[0004] The present disclosure provides a camera module, an electronic device, a camera control method and a device to solve related technical problems.

[0005] A first aspect of the present disclosure provides a camera module, which is applied to an electronic device; the camera module comprises:

[0006] Camera body;

[0007] A cover body is arranged on the light-incoming side of the camera body; the cover body includes at least one heating layer, and the heating layer is conductively connected to the processor; wherein the processor is conductively connected to the temperature sensor and the humidity sensor to send a control signal to the heating layer according to the thermodynamic parameters obtained by the temperature sensor and the humidity sensor.

[0008] Optionally, the cover body includes an insulating layer arranged on at least one side of the heating layer.

[0009] Optionally, a hydrophobic layer is provided on the inner side of the cover body facing the camera body.

[0010] Optionally, an anti-oil layer is provided on the outer side of the cover body facing away from the camera body.

[0011] Optionally, an edge of the cover body is provided with an insulating ring arranged around the cover body.

[0012] Optionally, the heating layer is made of transparent material.

[0013] Optionally, the material of the heating layer includes one of an ITO film, an AZO film, a graphene film, and a carbon nanotube film.

[0014] Optionally, the camera module also includes a group of first conductive connectors and a group of second conductive connectors, the first conductive connectors are conductively connected to the heating layer, and the second conductive connectors are conductively connected to the processor; the first conductive connectors are connected to the second conductive connectors.

[0015] Optionally, the shape of the first conductive connecting member and / or the second conductive connecting member includes at least one of a nut shape, a cylinder, a cuboid, and a frustum.

[0016] Optionally, a reserved space is provided between the cover body and the camera body, and at least one of the temperature sensors and / or at least one of the humidity sensors is arranged in the reserved space.

[0017] Optionally, at least one of the temperature sensors and / or at least one of the humidity sensors are assembled on the camera body.

[0018] Optionally, at least one of the temperature sensors and / or at least one of the humidity sensors are assembled to the cover.

[0019] Optionally, the camera module includes a control component; the control component includes the processor, the temperature sensor and the humidity sensor.

[0020] Optionally, the camera module also includes a power supply; the power supply is conductively connected to the camera body and the control component respectively.

[0021] Optionally, the camera module also includes at least one of a screen assembly, a wireless communication module, a mobile communication module, and a motor.

[0022] Optionally, the processor comprises a control circuit conductively connected to the heating layer, the control circuit comprising a switch and a current limiting resistor.

[0023] According to a second aspect of the present disclosure, an electronic device is provided, comprising a device body and any camera module described in the first aspect.

[0024] Optionally, the device body includes a first body and a second body, the first body includes an outer side facing the outside of the electronic device and an inner side opposite to the outer side, and the second body is located on the inner side; the camera body is arranged on the second body, and the cover body is arranged on the first body.

[0025] Optionally, at least one of the temperature sensors and / or at least one of the humidity sensors are assembled to the device body.

[0026] Optionally, at least one of the temperature sensors and / or at least one of the humidity sensors are arranged outside the electronic device.

[0027] Optionally, the device body includes a control component; the control component includes the processor, the temperature sensor and the humidity sensor.

[0028] According to a third aspect of the present disclosure, a camera control method is provided, which is applied to any camera module described in the first aspect, or any electronic device described in the second aspect; the control method comprises:

[0029] Receiving a thermodynamic signal sent by the temperature sensor and / or the humidity sensor;

[0030] The heating layer is controlled to start or stop working according to the thermodynamic signal.

[0031] Optionally, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device; and controlling the heating layer to operate or stop operating according to the thermodynamic signal includes:

[0032] Determine whether the first signal reaches a critical condition for fogging, and if so, send a first control signal to control the heating layer to start working; wherein the critical condition for fogging includes that the relative humidity at the current temperature is greater than or equal to 100%;

[0033] Determine whether the first signal meets the safety condition, and if so, send a second control signal to control the heating layer to stop working; wherein, the safety condition includes that the relative humidity at the current temperature is less than 100%.

[0034] Optionally, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device, and a second signal sent by a temperature sensor and / or a humidity sensor located outside the electronic device; and controlling the heating layer to operate or stop operating according to the thermodynamic signal includes:

[0035] It is determined whether the temperature difference between the first signal and the second signal is greater than a preset value. If so, a first control signal is sent to control the heating layer to start working; otherwise, a second control signal is sent to control the heating layer to stop working.

[0036] According to a fourth aspect of the present disclosure, a camera control device is provided, which is applied to any camera module described in the first aspect, or any electronic device described in the second aspect; the control device includes:

[0037] A receiving unit, receiving a thermodynamic signal sent by the temperature sensor and / or the humidity sensor;

[0038] The processing unit controls the heating layer to start or stop working according to the thermodynamic signal.

[0039] Optionally, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device; and the processing unit includes:

[0040] a first judgment subunit, for judging whether the first signal reaches a critical condition for fogging, and if so, for sending a first control signal for controlling the heating layer to start working; wherein the critical condition for fogging includes that the relative humidity at the current temperature is greater than or equal to 100%;

[0041] The second judgment subunit judges whether the first signal meets the safety condition, and if so, sends a second control signal to control the heating layer to stop working; wherein, the safety condition includes that the relative humidity at the current temperature is less than 100%.

[0042] Optionally, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device, and a second signal sent by a temperature sensor and / or a humidity sensor located outside the electronic device; and the processing unit includes:

[0043] The third judgment subunit judges whether the temperature difference between the first signal and the second signal is greater than a preset value. If so, a first control signal is sent to control the heating layer to start working; otherwise, a second control signal is sent to control the heating layer to stop working.

[0044] According to a fifth aspect of the present disclosure, a computer-readable storage medium is provided, on which computer instructions are stored. When the instructions are executed by a processor, the steps of any control method described in the third aspect are implemented.

[0045] The technical solution provided by the present disclosure can at least achieve the following beneficial effects:

[0046] The cover of the disclosed camera module is provided with a heating layer, and the heating layer can be heated and controlled by a processor according to the thermodynamic parameters of the temperature sensor and the humidity sensor, thereby solving the fogging problem of the camera module. Since the cover is the original structure of the camera module, it can not only avoid the structural and space occupation caused by the setting of the heating layer, but also adapt to different types of electronic devices, thereby improving the thinness and application range of the camera module.

[0047] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1is a schematic cross-sectional structure diagram of a camera module in an exemplary embodiment of the present disclosure;

[0049] Figure 2 is a structural block diagram of a camera module in an exemplary embodiment of the present disclosure;

[0050] Figure 3 is a flow chart of a camera control method in an exemplary embodiment of the present disclosure;

[0051] Figure 4 It is the enthalpy-humidity diagram of moist air;

[0052] Figure 5 It is an example of an enthalpy-humidity diagram alignment of humid air in an exemplary embodiment of the present disclosure;

[0053] Figure 6 is a structural block diagram of a camera control device in an exemplary embodiment of the present disclosure;

[0054] Figure 7 It is a block diagram of a device for camera control shown in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0055] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are only examples of devices and methods consistent with some aspects of the present disclosure.

[0056] The terms used in the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two and more than two. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0057] The lens of an electronic device with a camera may fog during use due to temperature changes, scene and environment changes, etc. Fogging not only reduces the shooting quality, but also greatly reduces the service life of electronic devices with weak waterproof levels in humid environments. However, in related technologies, camera anti-fogging methods have problems such as complex structure, large size, and only applicable to a specific electronic device, which limits the scope of application.

[0058] The present disclosure provides a camera module, which is applied to electronic equipment. Figure 1 is a schematic diagram of a cross-sectional structure of a camera module in an exemplary embodiment of the present disclosure. Figure 1 As shown, the camera module 1 includes a camera body 12 and a cover 11. The cover 11 is arranged on the light-incoming side of the camera body 12, and the cover 11 includes at least one heating layer 111, and the heating layer 111 is conductively connected to the processor. The processor is conductively connected to the temperature sensor and the humidity sensor to send a control signal to the heating layer 111 according to the thermodynamic parameters obtained by the temperature sensor and the humidity sensor.

[0059] Since the cover 11 of the camera module 1 is provided with a heating layer 111, and the heating layer 111 can be heated and controlled by the processor according to the thermodynamic parameters of the temperature sensor and the humidity sensor, the fogging problem of the camera module 1 is solved without material consumption and manual disassembly and cleaning. Since the cover 11 is the original structure of the camera module 1, it can not only avoid the structure and space occupation caused by the setting of the heating layer 111, but also can be adapted to different types of electronic devices 2, thereby improving the lightness and thinness of the camera module 1 and the application range.

[0060] It should be noted that the projection of the heating layer 111 in the thickness direction of the cover 11 can match the overall structure of the cover 11, so that each area of ​​the cover 11 can be heated evenly, and the heating uniformity of the heating layer 111 for the camera module 1 is improved. In other embodiments, the heating layer 111 can also be distributed on the cover 11 in a dot array, a strip array, a ring, etc., and the present disclosure does not limit the setting method of the heating layer 111. The heating layer 111 can be located inside or on any outer side of the cover 11, and the present disclosure does not limit this.

[0061] In some embodiments, the heating layer 111 may be made of a transparent material to prevent the heating layer 111 from affecting the normal shooting of the camera module 1. For example, the material of the heating layer 111 may include one of an ITO film, an AZO film, a graphene film, and a carbon nanotube film.

[0062] In the above embodiment, a plurality of heating layers 111 may be provided for the cover body 11 to increase the heating and defogging effect of the cover body 11 through the plurality of heating layers 111. When the cover body 11 includes a plurality of heating layers 111, the heating layers 111 may be concentratedly distributed inside the cover body 11 to obtain a heating effect of heat concentration. The plurality of heating layers 111 may also be evenly distributed inside the cover body 11 at intervals to improve the heating uniformity of the cover body 11 in the thickness direction. The plurality of heating layers 111 may also be distributed on any outer side of the cover body 11 to improve the molding convenience of the heating layers 111.

[0063] In some embodiments, the cover 11 includes an insulating layer 112 disposed on at least one side of the heating layer 111 to prevent the heating layer 111 from causing leakage of the electronic device 2 when the heating layer 111 is powered on. For example, the insulating layer 112 can be disposed on both sides of the heating layer 111 to insulate the heating layer 111 from both sides to improve insulation reliability. The material of the insulating layer 112 can include insulating materials such as silica glass and plastic.

[0064] In some embodiments, the edge of the cover 11 is provided with an insulating ring 115 arranged around the cover 11 to prevent the heating layer 111 from causing leakage of the electronic device 2 when the heating layer 111 is powered on. The material of the insulating ring 115 may include insulating materials such as insulating rubber and plastic. The insulating ring 115 may be in a solid state or in a gel state.

[0065] In some embodiments, a hydrophobic layer 113 is provided on the inner side of the cover 11 facing the camera body 12, and the hydrophobic layer 113 may be a super-hydrophilic silicon oxide structure layer. Since the hydrophobic layer 113 has excellent hydrophobicity, the hydrophobic layer 113 can prevent fog from staying on the cover 11 of the camera module 1 to the greatest extent, and reduce the fogging problem on the inner side of the cover 11 facing the camera body 12.

[0066] In some embodiments, an anti-oil layer 114 is provided on the outer side of the cover body 11 facing away from the camera body 12. The anti-oil layer 114 may be a fluorosilicone polymer structure layer. Since the anti-oil layer 114 has excellent anti-oil and anti-fingerprint properties, the problem of poor shooting quality due to oil stains on the outer side of the cover body 11 can be avoided.

[0067] In some embodiments, the camera module 1 may further include a group of first conductive connectors 13 and a group of second conductive connectors 14, wherein the first conductive connectors 13 are conductively connected to the heating layer 111, and the second conductive connectors 14 are conductively connected to the processor, and the first conductive connectors 13 are connected to the second conductive connectors 14. The conductive connection between the heating layer 111 and the processor is achieved through the connection between the first conductive connectors 13 and the second conductive connectors 14, thereby improving the connection reliability between the heating layer 111 and the processor.

[0068] In the above embodiment, the shape of the first conductive connector 13 and / or the second conductive connector 14 includes at least one of a nut shape, a cylinder, a cuboid, and a truncated cone. Taking the first conductive connector 13 and the second conductive connector 14 as a nut shape as an example, the columnar end of the first conductive connector 13 can extend through the cover 11 to the heating layer 111, the columnar end of the second conductive connector 14 is connected to the processor, and the cap-shaped end of the first conductive connector 13 abuts against the cap-shaped end of the second conductive connector 14.

[0069] In some embodiments, a reserved space 15 is provided between the cover 11 and the camera body 12. After the heating layer 111 of the cover 11 is heated, the air in the reserved space 15 can be heated, forming a slow heating process. The airflow generated is extremely weak, thereby avoiding affecting the internal adjustment movement state of the camera. In other embodiments, there may be no gap between the cover 11 and the camera body 12, and the present disclosure is not limited to this.

[0070] In one embodiment, at least one temperature sensor and / or at least one humidity sensor may be disposed in the reserved space 15 to improve the sensing accuracy of the temperature sensor and / or the humidity sensor with respect to the internal thermodynamic parameters of the camera module 1 .

[0071] In another embodiment, at least one temperature sensor and / or at least one humidity sensor is assembled in the camera body 12, so as to collect thermodynamic parameters inside the camera module 1 through the temperature sensor and / or humidity sensor arranged in the camera body 12, thereby avoiding the structure and space occupation of the reserved space 15 and the cover body 11.

[0072] In yet another embodiment, at least one temperature sensor and / or at least one humidity sensor is assembled on the cover 11 to improve the sensing accuracy of the temperature sensor and / or humidity sensor with respect to the internal thermodynamic parameters of the camera module 1 .

[0073] In some embodiments, the camera module 1 includes a control component, which includes a processor, a temperature sensor, and a humidity sensor. The processor, the temperature sensor, and the humidity sensor are arranged in the camera module 1, so that the overall integration of the camera module 1 is improved, and it can be directly applied to the electronic device 2 to realize the corresponding defogging function.

[0074] In the above embodiment, the camera module 1 also includes a power supply, which is conductively connected to the camera body 12 and the control component respectively, so as to power the camera body 12 and the control component through an independent power supply, so that the camera module 1 can work independently and realize the defogging function, avoiding the problem of being unable to defog due to power failure of the electronic device 2. In other embodiments, the camera body 12 and the control component can also be directly connected to the power supply of the electronic device 2 to realize power supply.

[0075] like Figure 2 As shown, the camera module 1 may include at least one of a screen component, a wireless communication module, a mobile communication module, a motor, an internal memory, an external memory, and other devices in addition to a camera body 12, a cover 11, a temperature sensor, a humidity sensor, a processor, and a power supply. The screen component may realize functions such as image display and thermodynamic parameter display, the wireless communication module or the mobile communication module may realize data transmission, and the motor may drive the lens to realize functions such as focusing and focusing.

[0076] In the above embodiment, the processor may include a control circuit conductively connected to the heating layer 111, and the control circuit includes a switch and a current limiting resistor. The switch can be used for the electronic device 2 to control the switch according to the thermodynamic parameters of the temperature sensor and / or the humidity sensor. The current limiting resistor is used to control the current in the entire defogging process to avoid burning of the electronic device 2 due to excessive current. The resistance value of the current limiting resistor needs to be determined jointly according to the internal resistance of the power supply and the heating layer 111.

[0077] The present disclosure further provides an electronic device 2, which includes a device body and the above-mentioned camera module 1.

[0078] Since the cover 11 of the camera module 1 is provided with a heating layer 111, and the heating layer 111 can be heated and controlled by the processor according to the thermodynamic parameters of the temperature sensor and the humidity sensor, the fogging problem of the camera module 1 is solved without material consumption and manual disassembly and cleaning. Since the cover 11 is the original structure of the camera module 1, it can not only avoid the structure and space occupation caused by the setting of the heating layer 111, but also can be adapted to different types of electronic devices 2, thereby improving the lightness and thinness of the camera module 1 and the application range.

[0079] Optionally, the device body includes a first body 21 and a second body 22, the first body 21 includes an outer side facing the outside of the electronic device 2 and an inner side opposite to the outer side, the second body 22 is located on the inner side, the camera body 12 is arranged on the second body 22, and the cover body 11 is arranged on the first body 21. The cover body 11 is located in the first body 21 and outside the camera body 12 in the thickness direction, so as to cover and protect the camera body 12. At this time, the heating layer 111 located in the cover body 11 can heat the cover body 11, the space between the cover body 11 and the camera body 12, and the camera body 12.

[0080] The first body 21 may be an external housing of the electronic device 2 , and the second body 22 may be an internal housing of the electronic device 2 .

[0081] In some embodiments, at least one temperature sensor and / or at least one humidity sensor may be assembled in the device body to determine the internal thermodynamic parameters of the camera module 1 by acquiring the thermodynamic parameters of the device body. Since the thermodynamic parameters in the same environment are not much different, the above-mentioned structural setting method can reduce the structural and space occupation of the temperature sensor and the humidity sensor on the camera module 1 while ensuring the defogging effect, thereby improving the thinness of the camera module 1.

[0082] In some embodiments, at least one temperature sensor and / or at least one humidity sensor may be disposed outside the electronic device 2 to perform defog control based on the thermodynamic parameters inside the electronic device 2 and the thermodynamic parameters outside the electronic device 2, thereby simplifying the defog control logic and helping to improve the accuracy of the defog control.

[0083] In some embodiments, the device body may include a control component, which includes a processor, a temperature sensor, and a humidity sensor. That is, the processor, the temperature sensor, and the humidity sensor are all arranged in the device body to avoid occupying the structure and space of the camera module 1.

[0084] The present disclosure further provides a camera control method, which is applied to the above-mentioned camera module 1 or electronic device 2. Figure 3 is a flow chart of a camera control method in an exemplary embodiment of the present disclosure, such as Figure 3 As shown, the above camera control method can be implemented by the following steps:

[0085] In step S301 , a thermodynamic signal sent by a temperature sensor and / or a humidity sensor is received.

[0086] In step S302, the heating layer 111 is controlled to start or stop working according to the thermodynamic signal.

[0087] Since the cover 11 of the camera module 1 is provided with a heating layer 111, and the heating layer 111 can be heated and controlled by the processor according to the thermodynamic parameters of the temperature sensor and the humidity sensor, the fogging problem of the camera module 1 is solved without material consumption and manual disassembly and cleaning. Since the cover 11 is the original structure of the camera module 1, it can not only avoid the structure and space occupation caused by the setting of the heating layer 111, but also can be adapted to different types of electronic devices 2, thereby improving the lightness and thinness of the camera module 1 and the application range.

[0088] In some embodiments, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device 2, and controlling the heating layer 111 to work or stop working according to the thermodynamic signal may be:

[0089] It is determined whether the first signal reaches the critical condition for fogging, and if so, a first control signal is sent to control the heating layer 111 to start working. The critical condition for fogging includes that the relative humidity at the current temperature is greater than or equal to 100%.

[0090] It is determined whether the first signal meets the safety condition, and if so, a second control signal is sent to control the heating layer 111 to stop working. The safety condition includes that the relative humidity at the current temperature is less than 100%.

[0091] Enthalpy-humidity diagram of moist air Figure 4 As shown, when the relative humidity φ is 100%, water will precipitate, so it is necessary to control the temperature / humidity near the camera of the electronic device 2 to meet the relative humidity φ less than 100% at this temperature. Figure 4 The enthalpy-humidity diagram of moderately humid air plots the constant value lines of the main parameters of humid air, such as enthalpy h, moisture content d, temperature t, relative humidity φ, and water vapor partial pressure pv, at atmospheric pressure p = 0.1 MPa.

[0092] pass Figure 4 It can be seen that if the thermodynamic parameters near the camera module 1 reach the state of condensation, heating the humid air at this time can turn the saturated humid air into unsaturated humid air. At this time, since the relative humidity φ remains unchanged, fog will still form if the temperature returns to the original state. Therefore, it is necessary to heat the air with a lower relative humidity φ from the outside to enter the vicinity of the camera module 1, or the humid air near the camera module 1 diffuses to the outside, and the relative humidity φ near the camera module 1 is reduced to the preset value. The preset value is determined by the temperature at that moment, that is, the values ​​of the built-in temperature sensor and humidity sensor are Figure 4 Find the corresponding point in the , and draw a perpendicular line to the horizontal axis based on the point. Figure 4 When the relative humidity φ at the intersection of the isotherms of the temperature at that moment is less than 100%, the heating is stopped, and the cover 11 in front of the camera is gradually cooled, thereby avoiding fogging.

[0093] like Figure 5 As shown, assuming that the temperature near the camera module 1 is t1 and the relative humidity is φ1 after the heating layer 111 of the cover 11 of the camera module 1 is heated, the coordinates in the enthalpy-humidity diagram are P(t1,φt). At this time, the outside temperature is t2, and the coordinates of the saturated humid air at t2 in the enthalpy-humidity diagram are P(t2,100%). At this time, if the camera cover 11 stops heating and drops to the outside temperature, the relative humidity near the camera is 100%, and a critical point is reached at this time. If the temperature drops further, condensation will occur, and if it rises again, there will be no effect.

[0094] In other embodiments, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device 2, and a second signal sent by a temperature sensor and / or a humidity sensor located outside the electronic device 2. Controlling the heating layer 111 to work or stop working according to the thermodynamic signal may be:

[0095] It is determined whether the temperature difference between the first signal and the second signal is greater than a preset value. If so, a first control signal is sent to control the heating layer 111 to start working. Otherwise, a second control signal is sent to control the heating layer 111 to stop working. The defog control is performed by integrating the thermodynamic parameters inside the electronic device 2 and the thermodynamic parameters outside the electronic device 2, which simplifies the defog control logic and helps to improve the accuracy of the defog control.

[0096] The present disclosure further provides a camera control device, which is applied to the above-mentioned camera module 1 or electronic device 2. Figure 6 is a structural block diagram of a camera control device in an exemplary embodiment of the present disclosure, such as Figure 6 As shown, the camera control device 60 includes a receiving unit 61 and a processing unit 62.

[0097] The receiving unit 61 is configured to receive thermodynamic signals sent by the temperature sensor and / or the humidity sensor.

[0098] The processing unit 62 is configured to control the heating layer 111 to start working or stop working according to the thermodynamic signal.

[0099] In some embodiments, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device 2, and the processing unit may include a first judgment subunit and a second judgment subunit.

[0100] The first judgment subunit is configured to judge whether the first signal reaches the critical condition for fogging, and if so, to send a first control signal to control the heating layer 111 to start working. The critical condition for fogging includes that the relative humidity at the current temperature is greater than or equal to 100%.

[0101] The second judgment subunit is configured to judge whether the first signal meets the safety condition, and if so, to send a second control signal to control the heating layer 111 to stop working. The safety condition includes that the relative humidity at the current temperature is less than 100%.

[0102] In other embodiments, the thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device 2, and a second signal sent by a temperature sensor and / or a humidity sensor located outside the electronic device 2. The processing unit may include a third judgment subunit.

[0103] The third judgment subunit is configured to judge whether the temperature difference between the first signal and the second signal is greater than a preset value, and if so, send a first control signal to control the heating layer 111 to start working, and otherwise send a second control signal to control the heating layer 111 to stop working.

[0104] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0105] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can refer to the partial description of the method embodiments. The device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution. A person of ordinary skill in the art can understand and implement it without paying any creative work.

[0106] Accordingly, the present disclosure further provides a camera control device, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to:

[0107] Receive thermodynamic signals from a temperature sensor and / or a humidity sensor.

[0108] The heating layer 111 is controlled to start or stop working according to the thermodynamic signal.

[0109] Figure 7 900 is a block diagram of a device for camera control shown in an exemplary embodiment of the present disclosure. For example, the device 900 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0110] Reference Figure 7 , the device 900 may include one or more of the following components: a processing component 902 , a memory 904 , a power component 906 , a multimedia component 908 , an audio component 910 , an input / output (I / O) interface 918 , a sensor component 914 , and a communication component 916 .

[0111] The processing component 902 generally controls the overall operation of the device 900, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 902 may include one or more modules to facilitate the interaction between the processing component 902 and other components. For example, the processing component 902 may include a multimedia module to facilitate the interaction between the multimedia component 908 and the processing component 902.

[0112] The memory 904 is configured to store various types of data to support operations on the device 900. Examples of such data include instructions for any application or method operating on the device 900, contact data, phone book data, messages, pictures, videos, etc. The memory 904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, 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 disk or optical disk.

[0113] The power supply component 906 provides power to the various components of the device 900. The power supply component 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 900.

[0114] The multimedia component 908 includes a screen that provides an output interface between the device 900 and the 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 input signals from the 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 boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front camera and / or a rear camera. When the device 900 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0115] The audio component 910 is configured to output and / or input audio signals. For example, the audio component 910 includes a microphone (MIC), and when the device 900 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 904 or sent via the communication component 916. In some embodiments, the audio component 910 also includes a speaker for outputting audio signals.

[0116] I / O interface 918 provides an interface between processing component 902 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0117] The sensor assembly 914 includes one or more sensors for providing various aspects of status assessment for the device 900. For example, the sensor assembly 914 can detect the open / closed state of the device 900, the relative positioning of components, such as the display and keypad of the device 900, and the sensor assembly 914 can also detect the position change of the device 900 or a component of the device 900, the presence or absence of user contact with the device 900, the orientation or acceleration / deceleration of the device 900, and the temperature change of the device 900. The sensor assembly 914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 914 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 914 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0118] The communication component 916 is configured to facilitate wired or wireless communication between the device 900 and other devices. The device 900 can 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 916 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 916 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0119] In an exemplary embodiment, the apparatus 900 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, microcontrollers, microprocessors, or other electronic components to perform the above method.

[0120] The present disclosure further proposes a computer-readable storage medium having computer instructions stored thereon, which implement the steps of the above-mentioned camera control method when the instructions are executed by the processor. In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 904 including instructions, and the above-mentioned instructions can be executed by the processor 920 of the device 900 to complete the above-mentioned camera control method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0121] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A camera module, characterized in that: Used in electronic equipment; The camera module comprises: Camera body; A cover body is arranged on the light-incoming side of the camera body; the cover body includes at least one heating layer, and the heating layer is conductively connected to the processor; wherein the processor is conductively connected to the temperature sensor and the humidity sensor to send a control signal to the heating layer according to the thermodynamic parameters obtained by the temperature sensor and the humidity sensor.

2. The camera module according to claim 1, characterized in that: The cover body includes an insulating layer arranged on at least one side of the heating layer.

3. The camera module according to claim 1, characterized in that: A hydrophobic layer is provided on the inner side of the cover body facing the camera body.

4. The camera module according to claim 1, characterized in that: An anti-oil layer is provided on the outer side of the cover body facing away from the camera body.

5. The camera module according to claim 1, characterized in that: An insulating ring is arranged around the cover body at the edge of the cover body.

6. The camera module according to claim 1, characterized in that: The heating layer is made of transparent material.

7. The camera module according to claim 1, characterized in that: The material of the heating layer includes one of an ITO film, an AZO film, a graphene film, and a carbon nanotube film.

8. The camera module according to claim 1, characterized in that: It also includes a group of first conductive connectors and a group of second conductive connectors, wherein the first conductive connectors are conductively connected to the heating layer, and the second conductive connectors are conductively connected to the processor; the first conductive connectors are connected to the second conductive connectors.

9. The camera module according to claim 8, characterized in that: The shape of the first conductive connecting member and / or the second conductive connecting member includes at least one of a nut shape, a cylinder, a cuboid, and a frustum.

10. The camera module according to claim 1, characterized in that: A reserved space is provided between the cover body and the camera body, and at least one temperature sensor and / or at least one humidity sensor is arranged in the reserved space.

11. The camera module according to claim 1, characterized in that: At least one of the temperature sensors and / or at least one of the humidity sensors is assembled on the camera body.

12. The camera module according to claim 1, characterized in that: At least one of the temperature sensors and / or at least one of the humidity sensors is assembled on the cover.

13. The camera module according to claim 1, characterized in that: The camera module includes a control component; the control component includes the processor, the temperature sensor and the humidity sensor.

14. The camera module according to claim 1, characterized in that: It also includes a power supply; the power supply is conductively connected to the camera body and the control component respectively.

15. The camera module according to claim 1, characterized in that: The camera module also includes at least one of a screen assembly, a wireless communication module, a mobile communication module, and a motor.

16. The camera module according to claim 1, characterized in that: The processor includes a control circuit electrically connected to the heating layer, wherein the control circuit includes a switch and a current limiting resistor.

17. An electronic device, characterized in that: It comprises a device body and a camera module as described in any one of claims 1-15.

18. The electronic device according to claim 17, characterized in that: The device body includes a first body and a second body, the first body includes an outer side facing the outside of the electronic device and an inner side opposite to the outer side, and the second body is located on the inner side; the camera body is arranged on the second body, and the cover body is arranged on the first body.

19. The electronic device according to claim 17, characterized in that: At least one of the temperature sensors and / or at least one of the humidity sensors is assembled to the device body.

20. The electronic device according to claim 19, characterized in that At least one of the temperature sensors and / or at least one of the humidity sensors is disposed outside the electronic device.

21. The electronic device according to claim 17, characterized in that: The device body includes a control component; the control component includes the processor, the temperature sensor and the humidity sensor.

22. A camera control method, characterized in that: Applicable to the camera module according to any one of claims 1 to 16, or the electronic device according to any one of claims 17 to 21; the control method comprises: Receiving a thermodynamic signal sent by the temperature sensor and / or the humidity sensor; The heating layer is controlled to start or stop working according to the thermodynamic signal.

23. The camera control method according to claim 22, characterized in that: The thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device; controlling the heating layer to work or stop working according to the thermodynamic signal includes: Determine whether the first signal reaches a critical condition for fogging, and if so, send a first control signal to control the heating layer to start working; wherein the critical condition for fogging includes that the relative humidity at the current temperature is greater than or equal to 100%; Determine whether the first signal meets the safety condition, and if so, send a second control signal to control the heating layer to stop working; wherein, the safety condition includes that the relative humidity at the current temperature is less than 100%.

24. The camera control method according to claim 22, characterized in that: The thermodynamic signal comprises a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device, and a second signal sent by a temperature sensor and / or a humidity sensor located outside the electronic device; Controlling the heating layer to work or stop working according to the thermodynamic signal includes: Determine whether the temperature difference between the first signal and the second signal is greater than a preset value, and if so, send a first control signal to control the heating layer to start working; If not, a second control signal is sent to control the heating layer to stop working.

25. A camera control device, characterized in that: Applicable to the camera module according to any one of claims 1 to 16, or the electronic device according to any one of claims 17 to 21; the control device comprises: A receiving unit, receiving a thermodynamic signal sent by the temperature sensor and / or the humidity sensor; The processing unit controls the heating layer to start or stop working according to the thermodynamic signal.

26. The camera control device according to claim 25, characterized in that: The thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device; the processing unit includes: a first judgment subunit, for judging whether the first signal reaches a critical condition for fogging, and if so, for sending a first control signal for controlling the heating layer to start working; wherein the critical condition for fogging includes that the relative humidity at the current temperature is greater than or equal to 100%; The second judgment subunit judges whether the first signal meets the safety condition, and if so, sends a second control signal to control the heating layer to stop working; wherein, the safety condition includes that the relative humidity at the current temperature is less than 100%.

27. The camera control device according to claim 25, characterized in that: The thermodynamic signal includes a first signal sent by a temperature sensor and / or a humidity sensor located inside the electronic device, and a second signal sent by a temperature sensor and / or a humidity sensor located outside the electronic device; the processing unit includes: The third judgment subunit judges whether the temperature difference between the first signal and the second signal is greater than a preset value. If so, a first control signal is sent to control the heating layer to start working; otherwise, a second control signal is sent to control the heating layer to stop working.

28. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instruction is executed by the processor, it implements: the steps of the control method as described in any one of claims 22-24.