CN118489197A

CN118489197A - A method and electronic device for adjusting fan speed

Info

Publication number: CN118489197A
Application number: CN202280085789.8A
Authority: CN
Inventors: 徐风雷; 章斯亮; 彭磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Shenzhen Yinwang Intelligent Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2024-08-13
Also published as: WO2023206581A1

Abstract

The embodiment of the application provides a method for adjusting the rotating speed of a fan and an electronic device, relates to the technical field of electronic devices, and can be used for intelligent automobiles or new energy automobiles. The method comprises the steps that when the wireless charging module in the vehicle is detected to wirelessly charge the electronic equipment, the electronic device obtains a first vehicle speed of the vehicle and a first gear of an air conditioner in the vehicle. The electronic device determines a first noise level according to the first vehicle speed, the first gear and preset noise level corresponding relation information, and adjusts the rotating speed of the fan to be a first rotating speed according to the first noise level, wherein the first rotating speed is smaller than or equal to a second rotating speed corresponding to the first noise level. Therefore, the rotating speed of the fan is adjusted according to the noise level in the noise level corresponding relation information, so that noise generated by the fan can be covered, and interference of the noise generated when the fan dissipates heat to a user is avoided.

Description

Fan rotating speed adjusting method and electronic device

Technical Field

The application relates to the technical field of intelligent vehicles, in particular to a method for adjusting the rotating speed of a fan and an electronic device.

Background

As wireless charging technology becomes more prevalent, more and more electronic devices employ wireless charging technology. For example, a new energy automobile is provided with a wireless quick charging module, and the wireless charging module can charge a mobile phone. The maximum power of the wireless charging module can reach 40W. When the wireless charging module charges the mobile phone with maximum power, the mobile phone emits a large amount of heat. At this time, the mobile phone needs to dissipate heat, and usually, a cooling fan is used to dissipate heat. But the cooling fan generates a large noise when radiating heat, resulting in user complaints. In order to prevent the cooling fan from generating a large noise when radiating heat, it is common to optimize the cooling fan or to optimize the mounting path of the cooling fan. The cooling fan still generates a large noise when radiating heat.

Disclosure of Invention

The embodiment of the application provides a method for adjusting the rotating speed of a fan and an electronic device, which solve the problem that noise generated by a cooling fan is not perceived by a user during wireless charging.

In order to achieve the above purpose, the following technical scheme is adopted in the embodiment of the application.

In a first aspect, an embodiment of the present application provides a method for adjusting a rotational speed of a fan, where the method is applied to an electronic device, and the method includes: when the wireless charging module in the vehicle is detected to wirelessly charge the electronic equipment, a first speed of the vehicle and a first gear of an air conditioner in the vehicle are obtained. And determining a first noise level according to the first vehicle speed, the first gear and preset noise level corresponding relation information. The noise level correspondence information is used for representing the correspondence of the vehicle speed, the gear and the noise level. And according to the first noise level, adjusting the rotating speed of the fan to be the first rotating speed, wherein the first rotating speed is smaller than or equal to the second rotating speed corresponding to the first noise level, and the fan is used for radiating heat for the electronic equipment.

In the embodiment of the application, the electronic device determines the noise level in the noise level corresponding relation information according to the vehicle speed and the air conditioner gear, namely, the rotating speed of the fan can be adjusted according to the noise level in the noise level corresponding relation information (or simply called a noise level table), so that the noise generated by the fan can be covered, and the interference of the noise generated when the fan dissipates heat to a user is avoided.

In a specific implementation manner, according to the first noise level, the rotation speed of the fan is adjusted to a first rotation speed, specifically: and according to the first noise level, configuring first charging power for the wireless charging module. And adjusting the rotating speed of the fan to a third rotating speed corresponding to the first charging power according to the first charging power and the preset corresponding relation information of the charging power and the rotating speed of the fan, wherein the third rotating speed is the first rotating speed. The preset corresponding relation information of the charging power and the fan rotating speed is used for representing the corresponding relation of the charging power and the fan rotating speed.

In the embodiment of the application, the electronic device adjusts the charging power of the wireless charging module according to the noise level, and adjusts the rotating speed of the fan according to the charging power. In this way, the charging power, the fan heat dissipation and the noise level can be dynamically adjusted, the heat dissipation can be satisfied during the maximum efficiency charging, and the generated noise can not cause complaints of users.

In some implementations, before determining the first noise level according to the first vehicle speed, the first gear, and the preset noise level correspondence information, the method further includes: a first noise spectrum curve at the ear of a person when the air conditioner is in different gears in the vehicle is obtained. A second noise spectrum curve at the human ear is obtained when the vehicle is at different speeds. A third noise spectrum curve at the human ear is obtained when the fan is at different rotational speeds. And determining the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotating speeds is masked according to the first noise spectrum curve, the second noise spectrum curve and the third noise spectrum curve. According to the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotation speeds is masked, the noise level is determined, and the noise level corresponding relation information is obtained.

In the embodiment of the application, the electronic device can inquire the noise level in the noise level table according to the vehicle speed and the gear. The electronic device adjusts the rotating speed of the fan to the first rotating speed according to the noise level. Thus, the noise generated by the fan can be masked by adjusting the rotation speed of the fan according to the noise level in the noise level table. Therefore, the noise level table is generated in advance, and the rotating speed of the fan is adjusted by using the noise level table, so that the adjusting efficiency of the rotating speed of the fan can be effectively improved.

In a specific implementation manner, the noise level is determined according to the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotation speeds is masked, and specifically may be: when noise generated when the fan is at different rotational speeds is masked, the air conditioner is in a second gear, and the vehicle is at a second vehicle speed. And determining that the second gear corresponds to a third noise level and the second vehicle speed corresponds to a fourth noise level. When the third noise level is greater than or equal to the fourth noise level, the second gear and the second vehicle speed correspond to the third noise level. When the third noise level is less than the fourth noise level, the second gear and the second vehicle speed correspond to the fourth noise level.

In a specific implementation manner, according to the first noise level, the rotation speed of the fan is adjusted to a first rotation speed, specifically: a fourth rotational speed of the fan is obtained. And according to the fourth rotating speed, searching a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table. The fan tachometer is used for representing the corresponding relation between the fan rotational speed and the noise level. And when the second noise level is greater than the first noise level, the fourth rotation speed is adjusted to the first rotation speed.

In the embodiment of the application, the electronic device determines the noise level according to the background noise (such as the noise generated by the vehicle speed and the air conditioner) and the noise generated by the fan, and adjusts the rotating speed of the fan. Thus, the background noise masks noise generated by the fan, and interference of the noise generated by the fan in heat dissipation to a user is avoided.

In some implementations, the method further includes: the speed of the vehicle is stepped according to a first gradient. The rotational speed of the fan is stepped according to a second gradient. Thus, the design is simplified, and the use experience is improved.

In a second aspect, an embodiment of the present application provides an electronic device, including: the first acquisition unit is used for acquiring a first speed of the vehicle and a first gear of an air conditioner in the vehicle when the wireless charging module in the vehicle is detected to wirelessly charge the electronic equipment. The first determining unit is used for determining a first noise level according to the first vehicle speed, the first gear and preset noise level corresponding relation information; the noise level correspondence information is used for representing the correspondence of the vehicle speed, the gear and the noise level. The adjusting unit is used for adjusting the rotating speed of the fan to be the first rotating speed according to the first noise level, wherein the first rotating speed is smaller than or equal to the second rotating speed corresponding to the first noise level, and the fan is used for radiating heat for the electronic equipment.

In a specific implementation, the adjusting unit is further configured to: according to the first noise level, configuring first charging power for the wireless charging module; according to the first charging power and the preset corresponding relation information of the charging power and the fan rotating speed, adjusting the rotating speed of the fan to a third rotating speed corresponding to the first charging power, wherein the third rotating speed is the first rotating speed; the preset corresponding relation information of the charging power and the fan rotating speed is used for representing the corresponding relation of the charging power and the fan rotating speed.

In some implementations, the electronic device further includes: the second acquisition unit is used for acquiring a first noise spectrum curve at the human ear when the air conditioner in the vehicle is in different gears. And the third acquisition unit is used for acquiring a second noise spectrum curve at the human ear when the vehicle is at different speeds. And the fourth acquisition unit is used for acquiring a third noise spectrum curve at the human ear when the fan is at different rotating speeds. And the second determining unit is used for determining the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotating speeds is masked according to the first noise spectrum curve, the second noise spectrum curve, the third noise spectrum curve and the noise masking principle. And a third determining unit for determining the noise level according to the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different speeds is masked, and obtaining the noise level corresponding relation information.

In a specific implementation manner, the third determining unit is further configured to: when noise generated when the fan is at different rotational speeds is masked, the air conditioner is in a second gear, and the vehicle is at a second vehicle speed. And determining that the second gear corresponds to a third noise level and the second vehicle speed corresponds to a fourth noise level. When the third noise level is greater than or equal to the fourth noise level, the second gear and the second vehicle speed correspond to the third noise level. When the third noise level is less than the fourth noise level, the second gear and the second vehicle speed correspond to the fourth noise level.

In a specific implementation, the adjusting unit is further configured to: acquiring a fourth rotating speed of the fan; according to the fourth rotating speed, searching a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table; the fan tachometer is used for representing the corresponding relation between the fan rotational speed and the noise level; and when the second noise level is greater than the first noise level, the fourth rotation speed is adjusted to the first rotation speed.

In some implementations, the electronic device further includes: a gear shifting unit for shifting the speed of the vehicle according to a first gradient; the rotational speed of the fan is stepped according to a second gradient. Thus, the design is simplified, and the use experience is improved.

In a third aspect, an embodiment of the present application provides a vehicle including: a processor and a memory coupled to the processor, the memory for storing computer program code comprising computer instructions that, when read from the memory by the processor, cause the vehicle to perform the method of the first aspect.

In a fourth aspect, embodiments of the present application provide a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of the first aspect.

In a fifth aspect, embodiments of the present application provide a computer readable storage medium comprising computer instructions, the computer readable storage medium comprising computer instructions which, when run on a computer, cause the computer to perform the method of the first aspect.

In the embodiment of the application, the electronic device determines the noise level in the noise level corresponding relation information according to the vehicle speed and the air conditioner gear, that is, the rotating speed of the fan can be adjusted according to the noise level in the noise level corresponding relation information, so that the noise generated by the fan can be covered, and the interference of the noise generated by the fan in heat dissipation to a user is avoided.

Drawings

Fig. 1 is a schematic diagram of an electronic device according to an embodiment of the present application;

Fig. 2A is a schematic structural diagram of a vehicle according to an embodiment of the present application;

FIG. 2B is an exploded view of the structure of FIG. 2A;

fig. 3A is a flow chart of a method for adjusting a rotational speed of a fan according to an embodiment of the present application;

fig. 3B is a flow chart of a method for adjusting a rotational speed of a fan according to an embodiment of the present application;

Fig. 3C is a flow chart of a method for adjusting a rotational speed of a fan according to an embodiment of the present application;

fig. 3D is a flow chart of a method for adjusting a rotational speed of a fan according to an embodiment of the present application;

fig. 4 is a schematic diagram of a composition of another electronic device according to an embodiment of the application.

Detailed Description

Fig. 1 shows a schematic structure of an electronic device 100.

The electronic device 100 may include a processor 110, a memory 120, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, a wireless communication module 150, a sensor module 160, keys 170, a camera 180, and a display screen 190. Among them, the sensor module 160 may include a gyro sensor 160A, a distance sensor 160B, an air pressure sensor 160C, a touch sensor 160D, an ambient light sensor 160E, a temperature sensor 160F, and the like.

It should be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the application, the electronic device 100 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (IMAGE SIGNAL processor, ISP), a controller, a video codec, a digital signal processor (DIGITAL SIGNAL processor, DSP), a baseband processor, and/or a neural-Network Processor (NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, the processor 110 may include one or more interfaces. The interfaces may include an integrated circuit (inter-INTEGRATED CIRCUIT, I2C) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, and/or a USB interface, among others.

The I2C interface is a bi-directional synchronous serial bus comprising a serial data line (SERIAL DATA LINE, SDA) and a serial clock line (derail clock line, SCL). In some embodiments, the processor 110 may contain multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 160D, charger, flash, camera 180, etc., respectively, through different I2C bus interfaces. For example: the processor 110 may be coupled to the touch sensor 160D through an I2C interface, such that the processor 110 communicates with the touch sensor 160D through an I2C bus interface to implement a touch function of the electronic device 100.

The MIPI interface may be used to connect processor 110 to peripheral devices such as display screen 190, camera 180, etc. The MIPI interfaces include camera serial interfaces (CAMERA SERIAL INTERFACE, CSI), display serial interfaces (DISPLAY SERIAL INTERFACE, DSI), and the like. In some embodiments, the processor 110 and the camera 180 communicate through a CSI interface to implement the photographing function of the electronic device 100. Processor 110 and display screen 190 communicate via a DSI interface to implement the display functionality of electronic device 100.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 110 with the camera 180, the display screen 190, the wireless communication module 150, the sensor module 160, and the like. The GPIO interface may also be configured as an I2C interface, MIPI interface, etc.

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, and may also be used to transfer data between the electronic device 100 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other electronic devices, such as augmented reality (augmented reality, AR) equipment, and the like.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present application is only illustrative, and is not meant to limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also use different interfacing manners, or a combination of interfacing manners, as in the above embodiments.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 140 may receive a charging input of a wired charger through the USB interface 130. In some wireless charging embodiments, the charge management module 140 may receive wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also be configured to charge the battery 142 and may also be configured to power the electronic device through the power management module 141.

The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 and provides power to the processor 110, the memory 120, the display screen 190, the camera 180, the wireless communication module 150, and the like. The power management module 141 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters. In other embodiments, the power management module 141 may also be provided in the processor 110. In other embodiments, the power management module 141 and the charge management module 140 may be disposed in the same device.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the wireless communication module 150, a modem processor, a baseband processor, and the like.

The antenna 1 is used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The wireless communication module 150 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (WIRELESS FIDELITY, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation SATELLITE SYSTEM, GNSS), frequency modulation (frequency modulation, FM), near field communication (NEAR FIELD communication, NFC), infrared (IR), etc., applied to the electronic device 100. The wireless communication module 150 may be one or more devices that integrate at least one communication processing module. The wireless communication module 150 receives electromagnetic waves via the antenna 1, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 150 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it into electromagnetic waves to radiate through the antenna 1.

In some embodiments, the antenna 1 and the wireless communication module 150 of the electronic apparatus 100 are coupled such that the electronic apparatus 100 may communicate with a network and other devices through wireless communication technology. The wireless communication techniques can include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (GENERAL PACKET radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation SATELLITE SYSTEM, GLONASS), a beidou satellite navigation system (beidou navigation SATELLITE SYSTEM, BDS), a quasi zenith satellite system (quasi-zenith SATELLITE SYSTEM, QZSS) and/or a satellite based augmentation system (SATELLITE BASED AUGMENTATION SYSTEMS, SBAS).

The electronic device 100 implements display functions through a GPU, a display screen 190, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 190 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 190 is used to display images, videos, and the like. The display screen 190 includes a display panel. The display panel may employ a Liquid Crystal Display (LCD) CRYSTAL DISPLAY, an organic light-emitting diode (OLED), an active-matrix organic LIGHT EMITTING diode (AMOLED), a flexible light-emitting diode (FLED), miniled, microLed, micro-oLed, a quantum dot LIGHT EMITTING diode (QLED), or the like. In some embodiments, the electronic device 100 may include 1 or N display screens 190, N being a positive integer greater than 1.

The electronic device 100 may implement photographing functions through an ISP, a camera 180, a video codec, a GPU, a display screen 190, an application processor, and the like.

The ISP is used to process the data fed back by the camera 180. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also perform algorithm optimization on noise and brightness of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 180.

The camera 180 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a format of standard RGB (RGB stands for three colors of red, green, and blue), YUV ("Y" stands for brightness (luminence or Luma), that is, gray scale values, "U" and "V" stand for chromaticity (Chrominance or Chroma)), or the like. In some embodiments, the electronic device 100 may include 1 or N cameras 180, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to fourier transform the frequency bin energy, and so on.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in multiple encoding formats, such as: dynamic picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent awareness of the electronic device 100 may be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.

Memory 120 may be used to store computer-executable program code that includes instructions. The memory 120 may include a stored program area and a stored data area. The storage program area may store an application program (such as a sound playing function, an image playing function, etc.) required for at least one function of the operating system, etc. The storage data area may store data created during use of the electronic device 100 (e.g., audio data, phonebook, etc.), and so on. In addition, memory 120 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash memory (universal flash storage, UFS), and the like. The processor 110 performs various functional applications and data processing of the electronic device 100 by executing instructions stored in the memory 120 and/or instructions stored in a memory provided in the processor.

The gyro sensor 160A may be used to determine a motion gesture of the electronic device 100. In some embodiments, the angular velocity of electronic device 100 about three axes (i.e., x, y, and z axes) may be determined by gyro sensor 160A. The gyro sensor 160A may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 160A detects the shake angle of the electronic device 100, calculates the distance to be compensated by the lens module according to the angle, and makes the lens counteract the shake of the electronic device 100 through the reverse motion, so as to realize anti-shake. The gyro sensor 160A may also be used to navigate a scene.

The air pressure sensor 160C is used to measure air pressure. In some embodiments, the electronic device 100 calculates altitude from the barometric pressure value measured by the barometric pressure sensor 160C, aiding in positioning and navigation.

A distance sensor 160B for measuring a distance. The electronic device 100 may measure the distance by infrared or laser. In some embodiments, the electronic device 100 may range using the distance sensor 160B to achieve fast focus.

The ambient light sensor 160E is used to sense ambient light level. The electronic device 100 may adaptively adjust the brightness of the display screen 190 according to the perceived ambient light level. The ambient light sensor 160E may also be used to automatically adjust white balance when taking a photograph.

The temperature sensor 160F is used to detect temperature. In some embodiments, the electronic device 100 performs a temperature processing strategy using the temperature detected by the temperature sensor 160F. For example, when the temperature reported by temperature sensor 160F exceeds a threshold, electronic device 100 performs a reduction in performance of a processor located in the vicinity of temperature sensor 160F in order to reduce power consumption to implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the electronic device 100 heats the battery 142 to avoid abnormal shutdown of the electronic device 100 caused by low temperature. In other embodiments, when the temperature is lower than the further threshold, the electronic device 100 performs boosting on the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.

The touch sensor 160D, also referred to as a "touch device". The touch sensor 160D may be disposed on the display screen 190, and the touch sensor 160D and the display screen 190 form a touch screen, which is also referred to as a "touch screen". The touch sensor 160D is used to detect a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to the touch operation may be provided through the display screen 190. In other embodiments, the touch sensor 160D may also be disposed on the surface of the electronic device 100 at a different location than the display 190.

The keys 170 include a power on key, a volume key, etc. The keys 170 may be mechanical keys. Or may be a touch key. The electronic device 100 may receive key inputs, generating key signal inputs related to user settings and function controls of the electronic device 100.

Of course, the electronic device 100 may further include other functional units, which are not limited by the embodiment of the present application.

The following describes a method for adjusting the rotational speed of a fan according to an embodiment of the present application, taking the architecture shown in fig. 1 as an example. Each unit in the following embodiments may be provided with the components shown in fig. 1, and will not be described again. In addition, the terms and the like related to the actions of the embodiments of the present application may be referred to each other without limitation.

The electronic device may include different product forms in the automotive field, for example: vehicle-mounted chip, vehicle-mounted device (such as wireless charging device, vehicle machine, vehicle-mounted computer, head Up Display (HUD), etc.), whole vehicle, and server (virtual or physical).

In the embodiment of the present application, an electronic device is described as an example of a wireless charging device. Fig. 2A shows a schematic structural diagram of a vehicle. As shown in fig. 2A, the new energy automobile 1 is equipped with a wireless charging device 11, and the wireless charging device 11 is used for wirelessly charging electronic equipment (such as a mobile phone). As shown in a region a of fig. 2A, the mobile phone 2 is placed on the wireless charging device 11, and a heat radiation hole 111 is provided on the contact surface of the mobile phone 2 and the wireless charging device 11. When the wireless charging device 11 performs wireless charging for the mobile phone 2, heat dissipation can be performed for the mobile phone 2. Specifically, as shown in fig. 2B, the wireless charging device 11 includes a wireless charging module 113 and a fan 112. The fan 112 is disposed at the heat dissipation hole 111, and the fan 112 can dissipate heat for the mobile phone or the wireless charging device 11. The maximum power of the wireless charging module can reach 40W.

Currently, since the wireless charging device is located in front of the shift lever in the vehicle, the wireless charging device is located at a relatively short distance, e.g., about 50cm, from the ears of the driver and co-driver. When the wireless charging module charges the mobile phone with maximum power, the mobile phone emits a large amount of heat. At this time, the mobile phone needs to dissipate heat, and the fan needs to dissipate heat at a larger rotation speed to meet the heat dissipation requirement. In this way, the fan may generate a large noise when radiating heat, resulting in user complaints.

In order to solve the above technical problems, an embodiment of the present application provides a method for adjusting a rotational speed of a fan, where the method is applied to an electronic device, and the method includes: when the wireless charging module in the vehicle is detected to wirelessly charge the electronic equipment, the electronic device acquires a first speed of the vehicle and a first gear of an air conditioner in the vehicle. The electronic device determines a first noise level according to the first vehicle speed, the first gear and preset noise level corresponding relation information. The noise level correspondence information is used for representing correspondence of vehicle speed, gear and noise level. The electronic device adjusts the rotating speed of the fan to the first rotating speed according to the first noise level, wherein the first rotating speed is smaller than or equal to the second rotating speed corresponding to the first noise level, and the fan is used for radiating heat of the electronic equipment. Therefore, the rotating speed of the fan is regulated according to the noise level in the noise level corresponding relation information (or simply called a noise level table), the noise generated by the fan can be covered, and the interference of the noise generated when the fan dissipates heat to a user is avoided.

The noise levels in the noise level table may be noise levels corresponding to the speed of the vehicle and/or the gear of the air conditioner, or may be noise levels corresponding to the gear of the air conditioner and/or the speed of the vehicle when noise generated when the fan is at different rotational speeds is masked. The following describes in detail a method for adjusting a rotational speed of a fan according to an embodiment of the present application for different situations:

In the first case, each noise level in the noise level table is a noise level corresponding to the speed of the vehicle and/or the gear of the air conditioner. That is, the noise level table is determined based on the vehicle speed and the gear of the air conditioner.

In a first embodiment, the electronic device adjusts the rotational speed of the fan based on the vehicle speed and noise generated by the gear of the air conditioner. Specifically, the electronic device queries a first noise level corresponding to the first speed and/or the first gear in the noise level table according to the first speed and the first gear. The electronic device adjusts the rotating speed of the fan to the first rotating speed according to the first noise level. For example, assume that: the noise level table records that the speed of the vehicle is within the range of 30km/h < V less than or equal to 50km/h, and the air conditioner is not started, and the corresponding noise level is 1 level; the speed of the vehicle is within the range of 30km/h < V less than or equal to 50km/h, the air conditioner is started at 2 gears, and the corresponding noise level is 3 stages. When the first speed is 40km/h and the air conditioner is started at the 2 nd gear, the electronic device can find that the noise level corresponding to the first speed and the 2 nd gear is 3 rd in the noise level table. Then, the electronic device adjusts the rotation speed of the fan to the rotation speed corresponding to the 3-stage noise.

In this case, the electronic device adjusts the rotation speed of the fan to the first rotation speed according to the first noise level, and the following implementation manner may exist:

In the first mode, the electronic device adjusts the charging power of the wireless charging module according to the noise level, and adjusts the rotating speed of the fan according to the charging power. Specifically, the electronic device configures a first charging power for the wireless charging module according to the first noise level. The electronic device adjusts the third rotating speed corresponding to the first charging power according to the first charging power and the corresponding relation between the preset charging power and the rotating speed of the fan.

Illustratively, assume that: the charging power of the wireless charging module is 40W. When the wireless charging module is charged with 40W of power, the fan is required to dissipate heat at the maximum rotation speed. When the wireless charging module uses 32W of power to charge, the fan is required to dissipate heat at a rotation speed of 80% of the maximum rotation speed. And so on. Assume that the corresponding relationship between the noise level and the charging power of the wireless charging module is as follows: the noise level is 3, and correspondingly, the charging power of the wireless charging module is 80% by 40W; the noise level is 5 grades, and correspondingly, the charging power of the wireless charging module is 100% by 40W. As above, the electronic device adjusts the rotation speed of the fan to the rotation speed corresponding to the 3-stage noise. Specifically, the electronic device adjusts the charging power of the wireless charging module to 32W. Let the charging power and the rotational speed of the fan be in a linear relationship, for example ax=by, where a is the maximum charging power of the wireless charging module, B is the maximum rotational speed of the fan, and X, Y is the duty cycle. For example, the charging power of the wireless charging module is 80% by 40W, and accordingly, the rotation speed of the fan is 80% by maximum rotation speed. In this way, the charging power, the fan heat dissipation and the noise level can be dynamically adjusted, the heat dissipation can be satisfied during the maximum efficiency charging, and the generated noise can not cause complaints of users.

And in the second mode, the electronic device determines the noise level according to the background noise (such as the speed of the vehicle and the noise generated by the air conditioner) and the noise generated by the fan, and adjusts the rotating speed of the fan. Specifically, the electronic device obtains a fourth rotation speed of the fan. And the electronic device searches a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table according to the fourth rotating speed. The fan tachometer is used for representing the corresponding relation between the fan rotational speed and the noise level. When the second noise level is greater than the first noise level, the electronic device adjusts the fourth rotation speed to the first rotation speed.

For example, assume that the current rotational speed of the fan is the maximum rotational speed, and accordingly, the noise level of the fan is 5 stages; the speed of the vehicle is within the range of 30km/h < V less than or equal to 50km/h, the air conditioner is started at 2 grades, and the corresponding background noise level is 3 grades. In this case, the electronic device may determine that the noise level of the fan is greater than the background noise level. Thus, noise generated from the fan affects the user. At this time, the electronic device will adjust the rotational speed of the fan. Specifically, the electronic device adjusts the rotation speed of the fan to the rotation speed corresponding to the background noise level, that is, the electronic device adjusts the rotation speed of the fan from the maximum rotation speed to 80% of the maximum rotation speed. Thus, the background noise masks noise generated by the fan, and interference of the noise generated by the fan in heat dissipation to a user is avoided.

In the second case, when noise generated when the fan is at different rotational speeds is masked, the gear of the air conditioner and/or the noise level corresponding to the speed of the vehicle. That is, the noise level table is determined based on the rotational speed of the fan, the vehicle speed, and the gear of the air conditioner.

Specifically, the electronic device obtains a first noise spectrum curve at the human ear when the air conditioner in the vehicle is in different gears. The electronic device obtains a second noise spectrum curve at the human ear when the vehicle is at different speeds. The electronic device obtains a third noise spectrum curve at the human ear when the fan is at different rotational speeds. The electronic device determines the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotating speeds is masked according to the first noise spectrum curve, the second noise spectrum curve, the third noise spectrum curve and the noise masking principle. The electronic device determines a noise level according to a gear of the air conditioner when noise generated when the fan is at different rotational speeds is masked, a speed of the vehicle, and obtains a noise level table.

For example, the electronic device may determine a noise level corresponding to each rotation speed, a noise level corresponding to each vehicle speed, and a noise level corresponding to each gear according to the first noise spectrum curve, the second noise spectrum curve, and the second noise spectrum curve. The electronic device can determine the maximum level among a noise level corresponding to a rotating speed, a noise level corresponding to a vehicle speed and a noise level corresponding to a gear according to the noise masking principle. For example, the fan corresponds to 5-level noise at the maximum rotation speed, the vehicle speed corresponds to 1-level noise within the range of 30km/h < V < 50km/h, and the air conditioner corresponds to 3-level noise when 2-level is opened. Thus, the noise level is 5 grades when the air conditioner is opened for 2 grades in the range that the maximum rotation speed of the fan and the vehicle speed are 30km/h < V.ltoreq.50 km/h. For example, the fan corresponds to 5-level noise at the maximum rotation speed, the vehicle speed corresponds to 1-level noise within the range of 30km/h < V < 50km/h, and the air conditioner corresponds to 5-level noise when the air conditioner is opened for more than 3 gears. Thus, when the maximum rotation speed of the fan, the vehicle speed of 30km/h < V is less than or equal to 50km/h and the air conditioner is opened for more than 3 gears, the noise level is 5 levels. For another example, the fan corresponds to 0 level noise at 50% of maximum rotation speed, the vehicle speed corresponds to 1 level noise within the range of 30km/h < V less than or equal to 50km/h, and the air conditioner corresponds to 3 level noise when 2 levels are opened. Thus, in the range of 50% of maximum rotation speed of the fan, vehicle speed of 30km/h < V.ltoreq.50 km/h, and when the air conditioner is turned on for 2 gear, the noise level is 3 stages. And so on. The electronic device obtains the gear of the air conditioner and the noise level corresponding to the speed of the vehicle when the noise generated when the fan is at different speeds is masked. For example, as above, the vehicle speed is in the range of 30km/h < V.ltoreq.50 km/h, and the air conditioner corresponds to 5-level noise when the air conditioner is opened for more than 3 gears; and when the air conditioner is opened for 2 gears, the noise level is 3 stages within the range that the speed of the vehicle is 30km/h < V and less than or equal to 50 km/h. From this, a noise level table is obtained.

In this case, the electronic device may query the noise level table for the first noise level according to the first vehicle speed and the first gear. The electronic device adjusts the rotating speed of the fan to the first rotating speed according to the first noise level. Thus, the noise generated by the fan can be masked by adjusting the rotation speed of the fan according to the noise level in the noise level table. Therefore, the noise level table is generated in advance, and the rotating speed of the fan is adjusted by using the noise level table, so that the adjusting efficiency of the rotating speed of the fan can be effectively improved.

The following describes a method for adjusting the rotation speed of a fan according to an embodiment of the present application in detail.

Fig. 3A to fig. 3D are schematic partial flow diagrams of a method for adjusting a rotational speed of a fan according to an embodiment of the present application. As shown in fig. 3A to 3D, taking an example in which the execution subject of the method is an electronic device as an example, the method can be described in the following stages, specifically as follows:

In the first stage, a noise level table is constructed. As shown in fig. 3A:

S301, the electronic device acquires a first noise spectrum curve of the human ear when the air conditioner in the vehicle is in different gears.

Specifically, the electronic device determines the noise level corresponding to each gear of the air conditioner according to the first noise spectrum curve.

S302, the electronic device acquires a second noise spectrum curve at the human ear when the vehicle is at different speeds.

Specifically, the electronic device determines the noise level corresponding to each speed of the vehicle according to the second noise spectrum curve. Preferably, in order to simplify the design and improve the use experience, the electronic device may grade the speed of the vehicle according to a first gradient. Wherein the first gradient may be understood as a specified value. For example, 10km/h, 5km/h, 20km/h.

For example, taking 20km/h as an example, the electronics can grade the vehicle speed in a gradient of 20 km/h. The obtained vehicle speed gear may be as follows: v is more than 30km/h and less than or equal to 50km/h, V is more than 50km/h and less than or equal to 70km/h, and V is more than 70km/h and less than or equal to 90km/h.

S303, the electronic device acquires a third noise spectrum curve of the human ear when the fan is at different rotating speeds.

Specifically, the electronic device determines the noise level corresponding to each rotation speed of the fan according to the second noise spectrum curve.

Preferably, in order to simplify the design and improve the use experience, the electronic device may step the rotation speed of the fan according to the second gradient. Wherein the second gradient may be understood as specifying the duty cycle. For example, 10%, 5%, 20%.

For example, taking 10% as an example, the electronics can step the speed of the fan in a 10% gradient. The rotational speed gear may be obtained as follows: 0. 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% total 11 gear positions.

In practical applications, when the wireless charging module works and the heat dissipation of electronic equipment (such as a mobile phone) is comprehensively considered, the fan rotation speed of the lower gear is not adopted, for example, the gear below 50% (excluding 50%) is adopted.

S304, the electronic device determines the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotating speeds is masked according to the first noise spectrum curve, the second noise spectrum curve, the third noise spectrum curve and the noise masking principle.

Specifically, the electronic device determines a noise level corresponding to each gear of the air conditioner, a noise level corresponding to each speed of the vehicle, and a noise level corresponding to each rotation speed of the fan according to the first noise spectrum curve, the second noise spectrum curve, and the third noise spectrum curve. The following is described in detail below:

In the first case, the electronic device is used for adjusting the gear of the air conditioner and/or the noise level corresponding to the speed of the vehicle according to the noise masking principle. Example:

The vehicle speed and its corresponding noise level are as follows: v is less than or equal to 30km/h, and the corresponding noise level is 0; v is more than 30km/h and less than or equal to 50km/h, and the corresponding noise level is 1; v is more than 50km/h and less than or equal to 70km/h, and the corresponding noise level is 2; v is more than 70km/h and less than or equal to 90km/h, and the corresponding noise level is 3; v is more than 90 and less than or equal to 100km/h, and the corresponding noise level is 4; > 100km/h, corresponding to a noise level of 5.

The gear of the air conditioner and the corresponding noise level are as follows: air conditioner grade 0, corresponding, noise grade 0; air conditioner 1 grade, corresponding to noise grade 1; air conditioner 2 grade, corresponding, the noise level is 2; and the air conditioner is above 3 grades, and the corresponding noise level is 5.

And selecting the maximum noise level corresponding to the gear of the air conditioner and the speed of the vehicle according to the noise masking principle. For example, the vehicle speed is in the range of 30km/h < V.ltoreq.50 km/h, and the air conditioner is not turned on, and the noise level is determined to be 1; the speed of the vehicle is within the range of 30km/h < V less than or equal to 50km/h, and the air conditioner is 2 gears, and the noise level is determined to be 3. And so on.

And secondly, the electronic device determines the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotating speeds is masked according to the noise masking principle.

The vehicle speed and its corresponding noise level, the gear of the air conditioner and its corresponding noise level as described in case one. And combining the noise levels corresponding to the rotating speeds of the fans. Exemplary:

The noise level corresponding to each rotation speed of the fan is as follows: the fan rotating speed duty ratio is 50%, and the corresponding noise level is 0; the fan rotating speed duty ratio is 60%, and the corresponding noise level is 1; the fan rotation speed duty ratio is 70%, and the corresponding noise level is 2; the fan rotating speed duty ratio is 80%, and the corresponding noise level is 3; the fan rotation speed duty ratio is 90%, and the corresponding noise level is 4; the fan speed duty cycle is 100% and correspondingly the noise level is 5.

According to the noise masking principle, the gear of an air conditioner, the speed of a vehicle, for example, when noise generated when a fan is at different rotational speeds is masked:

In example 1, the fan rotation speed duty ratio is 100% and corresponds to 5-level noise, the vehicle speed is in the range of 30km/h < V less than or equal to 50km/h and corresponds to 1-level noise, and the air conditioner is opened for 2-level noise and corresponds to 3-level noise. Thus, when the fan rotating speed duty ratio is 100%, the vehicle speed is 30km/h < V.ltoreq.50 km/h, and the air conditioner is turned on for 2 gear, the noise level is 5 stages.

In example 2, the fan duty ratio is 100% and corresponds to 5-level noise, the vehicle speed is in the range of 30km/h < V less than or equal to 50km/h and corresponds to 1-level noise, and when the air conditioner is opened for more than 3 gears, the air conditioner corresponds to 5-level noise. Thus, when the fan duty ratio is 100%, the vehicle speed is 30km/h < V.ltoreq.50 km/h, and the air conditioner is turned on for 3 or more steps, the noise level is 5 steps.

Example 3, fan duty ratio is 70% corresponding to level 2 noise, vehicle speed is 30km/h < V.ltoreq.50 km/h range corresponding to level 1 noise, air conditioner opening level 2 corresponds to level 3 noise. Thus, when the fan duty ratio is 70%, the vehicle speed is 30km/h < V.ltoreq.50 km/h, and the air conditioner is turned on for 2 steps, the noise level is 3 steps.

As can be seen, in examples 2 and 3, the noise generated by the fan is masked, and the noise level is determined by the maximum noise level corresponding to the gear of the air conditioner and the vehicle speed of the vehicle. In this case, the electronic device can determine the gear of the air conditioner, the speed of the vehicle, when noise generated when the fan is at different rotational speeds is masked. Thereafter, the electronic device may perform the following S305, in detail:

S305, the electronic device determines a noise level according to the gear of the air conditioner when the noise generated when the fan is at different rotational speeds is masked, the speed of the vehicle, and obtains a noise level table (such as the noise level correspondence information described above).

In a specific implementation, the preset condition may include a notification, as shown in fig. 3B, S305 includes: s3051, S3052, S3053 and S3054. S3051, S3052, S3053 and S3054 may be specifically implemented as: s3051, when noise generated when the fan is at different rotation speeds is masked by the electronic device, the air conditioner is at a second gear, and the vehicle is at a second speed. S3052, the electronic device determines that the second gear corresponds to a third noise level and the second vehicle speed corresponds to a fourth noise level. And S3053, when the third noise level is greater than or equal to the fourth noise level, the electronic device determines that the second gear and the second vehicle speed correspond to the third noise level. S3054, when the third noise level is smaller than the fourth noise level, the electronic device determines that the second gear and the second vehicle speed correspond to the fourth noise level.

Along with the above-described examples, in examples 2 and 3, the noise generated by the fan was masked, and the noise level was determined by the maximum noise level corresponding to the gear of the air conditioner and the vehicle speed of the vehicle. The electrical device may obtain a noise level table as shown in table 1. As shown in table 1:

TABLE 1

Vehicle speed/air conditioner gear

Air conditioner 0 gear

Air conditioner 1 gear

Air conditioner 2 gear

Air conditioner 3 shelves and above

V≤30km/h	0	2	3	5
30＜V≤50km/h	1	2	3	5
50＜V≤70km/h	2	2	3	5
70＜V≤90km/h	3	3	3	5
90＜V≤100km/h	4	4	4	5
＞100km/h	5	5	5	5

Of course, the noise level table may be adjusted according to other situations, for example, other devices capable of generating noise are added in the vehicle, and the noise level table may be adjusted in combination with noise generated by other devices. The embodiment of the present application is not particularly limited.

In summary, it can be obtained that the noise generated when the fan is at different rotational speeds is masked by the background noise (or noise generated by the vehicle speed and the air conditioner gear), and the background noise level is shown in table 2:

TABLE 2

Background noise level	0	1	2	3	4	5
Fan speed duty cycle	50％	60％	70％	80％	90％	100％

In the second stage, a noise level table is used. As shown in fig. 3C:

And S306, when the wireless charging module in the vehicle is detected to wirelessly charge the electronic equipment, the electronic device acquires a first speed of the vehicle and a first gear of an air conditioner in the vehicle.

For example, when the wireless charging module wirelessly charges the electronic device, the distance sensor on the vehicle may collect the driving distance of the vehicle and send the driving distance of the vehicle to the electronic device, and the electronic device receives the driving distance of the vehicle and determines the speed of the vehicle according to the driving distance.

For example, when the wireless charging module wirelessly charges the electronic device, the temperature sensor in the vehicle may detect the temperature in the vehicle and transmit the driving distance of the vehicle to the electronic device, and the electronic device receives the temperature of the vehicle and determines the gear of the air conditioner according to the temperature.

S307, the electronic device determines a first noise level according to the first vehicle speed, the first gear and a preset noise level table.

The noise level table is used for representing the corresponding relation among the vehicle speed, the gear and the noise level. The noise level table may be as shown in table 1 above, for example.

And S308, the electronic device adjusts the rotating speed of the fan to the first rotating speed according to the first noise level, wherein the first rotating speed is smaller than or equal to the second rotating speed corresponding to the first noise level.

The fan is used for radiating heat for the electronic equipment. Or, the fan is used for radiating heat for the electronic equipment charged by the wireless charging module.

After the electronic device determines the first noise level, the electronic device may adjust a rotational speed of the fan according to the first noise level. For example, the electronic device may adjust the rotation speed of the fan according to the correspondence relationship of table 2.

In a specific implementation, based on the second scenario in the first phase, as shown in fig. 3D, S308 includes: s3081 and S3082. S3081 and S3082 may be embodied as:

S3081, the electronic device configures a first charging power for the wireless charging module according to the first noise level.

The electronic device stores the corresponding relation between the noise level and the charging power. Since the greater the charging power, the greater the rotational speed of the fan is required. Therefore, the correspondence between the noise level and the charging power may be equivalent to the correspondence between the noise level and the fan rotation speed. As described above, the charging power is linearly related to the rotational speed of the fan. It is understood that the charging power is adjusted in synchronization with the rotational speed of the fan.

For example, when the electronic device determines that the first noise level is 3, the electronic device may adjust the charging power of the wireless charging module to a power corresponding to the noise level 3. Assume that: the maximum charging power of the wireless charging module is 40W. When the first noise level is 3, the electronic device may adjust the charging power to 80% by 40W.

S3082, the electronic device adjusts the first charging power to a third rotating speed corresponding to the first charging power according to the first charging power and the preset corresponding relation information of the charging power and the rotating speed of the fan, wherein the third rotating speed is the first rotating speed.

The preset corresponding relation information of the charging power and the fan rotating speed is used for representing the corresponding relation of the charging power and the fan rotating speed.

As described above, the charging power is linearly related to the rotational speed of the fan. Along with the above example, assume: the charging power of the wireless charging module is 40W. When the wireless charging module uses 32W of power to charge, the fan is required to dissipate heat at a rotation speed of 80% of the maximum rotation speed.

In another specific implementation, based on the first scenario in the first stage, as shown in fig. 3D, S308 includes: s3083, S3084 and S3085. S3083, S3084 and S3085 can be implemented specifically as:

s3083, the electronic device obtains a fourth rotating speed of the fan.

Specifically, the fan may send the rotational speed to the electronic device, and the electronic device receives the rotational speed sent by the fan. Or the sensor of the electronic device may collect rotational speed information of the fan.

S3084, the electronic device searches a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table according to the fourth rotating speed.

The fan tachometer is used for representing the corresponding relation between the fan rotating speed and the noise level. By way of example, the fan tachometer may be as described in table 1 above.

S3085, when the second noise level is greater than the first noise level, the electronic device adjusts the fourth rotation speed to the first rotation speed.

That is, according to the noise masking principle, when the noise generated by the fan is greater than the background noise (such as the noise generated by the vehicle speed and the air conditioner gear), the electronic device adjusts the rotation speed of the fan down so that the noise generated by the rotation speed of the fan is less than or equal to the background noise.

The current rotation speed of the fan is the maximum rotation speed, and correspondingly, the noise level of the fan is 5 levels; the speed of the vehicle is within the range of 30km/h < V less than or equal to 50km/h, the air conditioner is started at 2 grades, and the corresponding background noise level is 3 grades. In this case, the electronic device may adjust the rotation speed of the fan so that the noise level of the fan is equal to or less than the background noise level. In this way, noise generated by the fan does not affect the user.

In various embodiments of the application, where no special description or logic conflict exists, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments based on their inherent logic.

Embodiments of the present application also provide an apparatus for implementing any of the above methods, for example, an apparatus including means for implementing the steps performed by the electronic apparatus in any of the above methods. As another example, another apparatus is provided that includes means for performing the steps performed by the vehicle in any of the methods above.

For example, please refer to fig. 4, which is a schematic diagram of an electronic device according to an embodiment of the present application, the device 400 may include:

A first obtaining unit 401, configured to obtain a first vehicle speed of a vehicle and a first gear of an air conditioner in the vehicle when detecting that a wireless charging module in the vehicle wirelessly charges an electronic device; the first obtaining unit 401 may perform the step of S306 described above, for example.

A first determining unit 402, configured to determine a first noise level according to a first vehicle speed, a first gear, and preset noise level correspondence information; the noise level corresponding relation information is used for representing the corresponding relation of the vehicle speed, the gear and the noise level; the first determining unit 402 may perform the steps of S307 described above, for example.

The adjusting unit 403 is configured to adjust a rotation speed of the fan to a first rotation speed according to the first noise level, where the first rotation speed is less than or equal to a second rotation speed corresponding to the first noise level, and the fan is configured to dissipate heat of the electronic device. Illustratively, the adjusting unit 403 may perform the step of S308 described above.

In a specific implementation, the adjusting unit 403 is further configured to: according to the first noise level, configuring first charging power for the wireless charging module; according to the first charging power and the preset corresponding relation information of the charging power and the fan rotating speed, adjusting the rotating speed of the fan to a third rotating speed corresponding to the first charging power, wherein the third rotating speed is the first rotating speed; the preset corresponding relation information of the charging power and the fan rotating speed is used for representing the corresponding relation of the charging power and the fan rotating speed. Illustratively, the conditioning unit 403 performs the steps of S3081 and S3082 described above.

In some implementations, the apparatus 400 further includes:

A second obtaining unit 404, configured to obtain a first noise spectrum curve at the ear when the air conditioner is in different gear in the vehicle; illustratively, the second obtaining unit 404 performs the step of S301 described above.

A third acquiring unit 405, configured to acquire a second noise spectrum curve at the human ear when the vehicle is at different vehicle speeds; the third acquisition unit 405, illustratively, performs the steps of S302 described above.

A fourth obtaining unit 406, configured to obtain a third noise spectrum curve at the ear when the fan is at different rotational speeds; the fourth acquisition unit 406, illustratively, performs the steps of S303 described above.

A second determining unit 407 for determining a gear of the air conditioner, a vehicle speed of the vehicle when noise generated when the fan is at different rotational speeds is masked, according to the first noise spectrum curve, the second noise spectrum curve, the third noise spectrum curve, and the noise masking principle; the second determination unit 407 performs the step of S304 described above, for example.

The third determining unit 408 is configured to determine a noise level according to a gear of the air conditioner when noise generated when the fan is at different rotational speeds is masked, a speed of the vehicle, and obtain noise level correspondence information. The third determination unit 408, illustratively, performs the steps of S305 described above.

In a specific implementation manner, the third determining unit 408 is further configured to: when the noise generated when the fan is at different rotating speeds is masked, the air conditioner is at a second gear, and the vehicle is at a second speed; determining that the second gear corresponds to a third noise level and the second vehicle speed corresponds to a fourth noise level; when the third noise level is greater than or equal to the fourth noise level, the second gear and the second vehicle speed correspond to the third noise level; when the third noise level is less than the fourth noise level, the second gear and the second vehicle speed correspond to the fourth noise level. The third determination unit 408 also performs the steps of S3051, S3052, S3053, and S3054 described above, for example.

In a specific implementation, the adjusting unit 403 is further configured to: acquiring a fourth rotating speed of the fan; according to the fourth rotating speed, searching a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table; the fan tachometer is used for representing the corresponding relation between the fan rotational speed and the noise level;

And when the second noise level is greater than the first noise level, the fourth rotation speed is adjusted to the first rotation speed. Illustratively, the adjusting unit 403 also performs the steps of S3083, S3084, and S3085 described above.

In some implementations, the apparatus 400 further includes:

A shift unit 409 for shifting the speed of the vehicle according to a first gradient; the rotational speed of the fan is stepped according to a second gradient.

It should be understood that the division of the units in the above apparatus is only a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units in the apparatus may be implemented in the form of processor-invoked software; the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is either internal to the device or external to the device. Or the units in the device may be implemented in the form of hardware circuits, where some or all of the functions of the units may be implemented by a design of hardware circuits, and where the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable GATE ARRAY, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units. All units of the above device may be realized in the form of processor calling software, or in the form of hardware circuits, or in part in the form of processor calling software, and in the rest in the form of hardware circuits.

In the embodiment of the application, the processor is a circuit with signal processing capability, and in one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit CPU, a microprocessor, a graphics processor GPU (which may be understood as a microprocessor), or a digital signal processor DSP, etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuitry that is fixed or reconfigurable, e.g., a hardware circuit implemented by a processor being an application specific integrated circuit ASIC or a programmable logic device PLD, such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units. Furthermore, a hardware circuit designed for artificial intelligence may be also be used, which may be understood as an ASIC, such as a neural network Processing Unit NPU tensor Processing Unit (Tensor Processing Unit, TPU), a deep learning Processing Unit (DEEP LEARNING Processing Unit, DPU), and the like.

It will be seen that each of the units in the above apparatus may be one or more processors (or processing circuits) configured to implement the above method, for example: CPU, GPU, NPU, TPU, DPU, microprocessors, DSP, ASIC, FPGA, or a combination of at least two of these processor forms.

Furthermore, the units in the above apparatus may be integrated together in whole or in part, or may be implemented independently. In one implementation, these units are integrated together and implemented in the form of a system-on-a-chip (SOC). The SOC may include at least one processor for implementing any of the methods above or for implementing the functions of the units of the apparatus, where the at least one processor may be of different types, including, for example, a CPU and an FPGA, a CPU and an artificial intelligence processor, a CPU and a GPU, and the like.

Alternatively, in this possible design, all relevant contents related to each step of the method embodiment shown in fig. 1 to 3D in the foregoing description may be referred to the functional descriptions of the corresponding functional modules, which are not repeated herein. The electronic device described in this possible design is used to perform the function of the electronic device in the method for adjusting the rotational speed of the fan shown in fig. 1 to 3D, and thus the same effects as those of the method for adjusting the rotational speed of the fan described above can be achieved.

The embodiment of the application provides a vehicle, which comprises: the fan speed adjusting device comprises a processor and a memory, wherein the memory is coupled with the processor, the memory is used for storing computer program codes, and the computer program codes comprise computer instructions, and when the processor reads the computer instructions from the memory, the electronic device is enabled to execute the fan speed adjusting method shown in fig. 3A-3D.

The vehicle provided by the embodiment of the application comprises the electronic device shown in fig. 4.

The embodiment of the application provides a computer program product, which enables a computer to execute a method for adjusting the rotating speed of a fan shown in fig. 1-3D when the computer program product runs on the computer.

The embodiment of the application provides a computer readable storage medium, which comprises computer instructions, wherein when the computer instructions run on a terminal, network equipment is enabled to execute a method for adjusting the rotating speed of a fan shown in fig. 1-3D.

The chip system provided by the embodiment of the application comprises one or more processors, and when the one or more processors execute instructions, the one or more processors execute the method for adjusting the rotating speed of the fan shown in fig. 1-3D.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

In the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

It will be appreciated that the communication device or the like described above, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

The embodiment of the present application may divide the functional modules of the communication device and the like according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

Claims

A method of adjusting a rotational speed of a fan, the method comprising:

When detecting that a wireless charging module in a vehicle carries out wireless charging on electronic equipment, acquiring a first vehicle speed of the vehicle and a first gear of an air conditioner in the vehicle;

Determining a first noise level according to the first vehicle speed, the first gear and preset noise level corresponding relation information; the noise level corresponding relation information is used for representing the corresponding relation among the vehicle speed, the gear and the noise level;

and adjusting the rotating speed of a fan to a first rotating speed according to the first noise level, wherein the first rotating speed is smaller than or equal to a second rotating speed corresponding to the first noise level, and the fan is used for radiating heat for the electronic equipment.
The method of claim 1, wherein adjusting the rotational speed of the fan to the first rotational speed based on the first noise level comprises:

According to the first noise level, configuring first charging power for the wireless charging module;

According to the first charging power and preset corresponding relation information of the charging power and the fan rotating speed, adjusting the rotating speed of the fan to a third rotating speed corresponding to the first charging power, wherein the third rotating speed is the first rotating speed;

The preset corresponding relation information of the charging power and the fan rotating speed is used for representing the corresponding relation of the charging power and the fan rotating speed.
The method according to claim 1 or 2, characterized by, before determining a first noise level according to the first vehicle speed, the first gear, and preset noise level correspondence information, further comprising:

Acquiring a first noise spectrum curve of a human ear when the air conditioner in the vehicle is in different gears;

acquiring a second noise spectrum curve of the human ear when the vehicle is at different speeds;

acquiring a third noise spectrum curve of the human ear when the fan is at different rotating speeds;

Determining a gear of the air conditioner and a speed of the vehicle when noise generated when the fan is at different rotating speeds is masked according to the first noise spectrum curve, the second noise spectrum curve and the third noise spectrum curve;

And determining the noise level according to the gear of the air conditioner and the speed of the vehicle when the noise generated when the fan is at different rotating speeds is masked, and obtaining the noise level corresponding relation information.
A method according to claim 3, wherein said determining a noise level based on a gear of the air conditioner when the noise generated when the fan is at different rotational speeds is masked, a speed of the vehicle, comprises:

When the noise generated when the fan is at different rotating speeds is masked, the air conditioner is at a second gear, and the vehicle is at a second vehicle speed;

Determining that the second gear corresponds to a third noise level and the second vehicle speed corresponds to a fourth noise level;

when the third noise level is greater than or equal to the fourth noise level, the second gear and the second vehicle speed correspond to the third noise level;

when the third noise level is less than the fourth noise level, the second gear and the second vehicle speed correspond to the fourth noise level.
The method of claim 1, wherein adjusting the rotational speed of the fan to the first rotational speed based on the first noise level comprises:

Acquiring a fourth rotating speed of the fan;

According to the fourth rotating speed, searching a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table; the fan tachometer is used for representing the corresponding relation between the fan rotating speed and the noise level;

And when the second noise level is greater than the first noise level, the fourth rotation speed is adjusted to the first rotation speed.
The method of any one of claims 1-5, further comprising:

the speed of the vehicle is graded according to a first gradient;

And grading the rotating speed of the fan according to a second gradient.
An electronic device, the electronic device comprising:

The first acquisition unit is used for acquiring a first vehicle speed of the vehicle and a first gear of an air conditioner in the vehicle when the wireless charging module in the vehicle is detected to wirelessly charge the electronic equipment;

The first determining unit is used for determining a first noise level according to the first vehicle speed, the first gear and preset noise level corresponding relation information; the noise level corresponding relation information is used for representing the corresponding relation among the vehicle speed, the gear and the noise level;

the adjusting unit is used for adjusting the rotating speed of the fan to be a first rotating speed according to the first noise level, the first rotating speed is smaller than or equal to a second rotating speed corresponding to the first noise level, and the fan is used for radiating heat for the electronic equipment.
The electronic device of claim 7, wherein the adjustment unit is further configured to:

According to the first noise level, configuring first charging power for the wireless charging module;

According to the first charging power and preset corresponding relation information of the charging power and the fan rotating speed, adjusting the rotating speed of the fan to a third rotating speed corresponding to the first charging power, wherein the third rotating speed is the first rotating speed;

The preset corresponding relation information of the charging power and the fan rotating speed is used for representing the corresponding relation of the charging power and the fan rotating speed.
The electronic device of claim 7 or 8, further comprising:

The second acquisition unit is used for acquiring a first noise spectrum curve of the human ear when the air conditioner in the vehicle is in different gears;

A third acquisition unit for acquiring a second noise spectrum curve at the human ear when the vehicle is at different speeds;

a fourth acquisition unit for acquiring a third noise spectrum curve at the human ear when the fan is at different rotation speeds;

a second determining unit configured to determine a gear of the air conditioner and a speed of the vehicle when noise generated when the fan is at different rotational speeds is masked, according to the first noise spectrum curve, the second noise spectrum curve, the third noise spectrum curve, and a noise masking principle;

And a third determining unit, configured to determine a noise level according to the gear of the air conditioner and the vehicle speed when the noise generated when the fan is at different rotational speeds is masked, and obtain the noise level correspondence information.
The electronic device of claim 9, wherein the third determining unit is further configured to:

When the noise generated when the fan is at different rotating speeds is masked, the air conditioner is at a second gear, and the vehicle is at a second vehicle speed;

Determining that the second gear corresponds to a third noise level and the second vehicle speed corresponds to a fourth noise level;

when the third noise level is greater than or equal to the fourth noise level, the second gear and the second vehicle speed correspond to the third noise level;

when the third noise level is less than the fourth noise level, the second gear and the second vehicle speed correspond to the fourth noise level.
The electronic device of claim 7, wherein the adjustment unit is further configured to:

Acquiring a fourth rotating speed of the fan;

According to the fourth rotating speed, searching a second noise level corresponding to the fourth rotating speed in a preset fan rotating speed table; the fan tachometer is used for representing the corresponding relation between the fan rotating speed and the noise level;

And when the second noise level is greater than the first noise level, the fourth rotation speed is adjusted to the first rotation speed.
The electronic device of any one of claims 7-11, further comprising:

A gear shifting unit for shifting the speed of the vehicle according to a first gradient; and grading the rotating speed of the fan according to a second gradient.
A vehicle, characterized by comprising: a processor and a memory coupled to the processor, the memory for storing computer program code comprising computer instructions that, when read from the memory by the processor, cause the vehicle to perform the method of any of claims 1-6.
A computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-6.
A computer readable storage medium comprising computer instructions, the computer readable storage medium comprising computer instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-6.