CN111432599A - Heat dissipation control method, terminal and computer readable storage medium - Google Patents
Heat dissipation control method, terminal and computer readable storage medium Download PDFInfo
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- CN111432599A CN111432599A CN202010167097.0A CN202010167097A CN111432599A CN 111432599 A CN111432599 A CN 111432599A CN 202010167097 A CN202010167097 A CN 202010167097A CN 111432599 A CN111432599 A CN 111432599A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a heat dissipation control method, a terminal and a computer readable storage medium, aiming at the problems that the prior terminal heat dissipation scheme adopts a physical heat dissipation mode of attaching auxiliary materials such as graphite sheets and the like, the controllability is very limited, in a few terminals with heat dissipation fans, the control of the fans also needs manual control of the opening and closing of the fans, the control mode is not intelligent enough, the wind speed cannot be controlled, and the continuation of the journey of the terminal is not facilitated, and the like, the obtained data is sent to a central processing unit for judgment by obtaining the residual electric quantity, the temperature and the charging current of a battery of the terminal, the judged result is sent to a micro-processing unit of the fans, the micro-processing unit of the fans adjusts the running state of the fans according to the judged result, the intelligent control of the heat dissipation fans is realized, and the terminal can execute the heat dissipation function of the fans through self logic without human intervention, unnecessary power consumption is reduced, and the use experience of the user is improved.
Description
Technical Field
The present invention relates to the field of terminal heat dissipation, and more particularly, to a heat dissipation control method, a terminal, and a computer-readable storage medium.
Background
With the development of modern society, people can not leave various terminals in daily life. Especially for mobile terminals such as smart phones, since the application of 5G communication and the trend of large screen are more obvious, the power consumption and heat productivity of the terminals are gradually increased, and in order to make up for the disadvantage of short endurance of the terminals, the high-power charging scheme of the terminals becomes a common scheme of various manufacturers. Because the impedance of circuit design is unavoidable, high-power charging means that more high-power generates heat, long-time charging risks damaging the machine, and in addition, when a user uses a game application with higher requirements on the performance of the terminal, the terminal heating value is increased, the service life of terminal parts is influenced, the use experience of the user is also reduced, and therefore, the timely heat dissipation treatment of the machine is particularly important. Traditional heat dissipation generally uses the heat dissipation of mode physics formula of laminating auxiliary materials such as graphite flake, and the controllability is very limited, and in few terminals that possess radiator fan, also need opening and closing of artificial manual control fan to the control of fan, control mode is intelligent inadequately, and can not control the wind speed, still is unfavorable for the continuation of the journey at terminal simultaneously, has reduced user's operation experience.
Disclosure of Invention
The technical problem to be solved by the present invention is how to realize intelligent control of a terminal cooling fan only through data of a terminal's own remaining power, temperature, charging current, etc., so that the terminal can intelligently control cooling through its own logic without considering intervention.
In order to solve the above technical problem, the present invention provides a heat dissipation control method, which is applied to a terminal, wherein at least one fan is arranged in the terminal, and the heat dissipation control method includes:
acquiring the residual battery capacity, temperature and charging current of the terminal;
and adjusting the running state of the fan according to the acquired residual electric quantity, temperature and charging current of the battery.
Optionally, adjusting the operating state of the fan according to the acquired remaining battery power, temperature, and charging current includes:
when the residual electric quantity of the battery is higher than the target electric quantity threshold value and the temperature is higher than the target temperature threshold value, starting the fan;
when the charging current is higher than a first target current threshold value, starting a fan;
and when the charging current is lower than the first target current threshold and higher than the second target current threshold, and the temperature is higher than the target temperature threshold, the fan is started.
Optionally, adjusting the operating state of the fan according to the acquired remaining battery power, temperature, and charging current further includes:
when the residual electric quantity of the battery is lower than the target electric quantity threshold value and the charging current is lower than a second target current threshold value, the fan is turned off;
and when the charging current is lower than the first target current threshold and the temperature is lower than the target temperature threshold, the fan is turned off.
Optionally, when the remaining power of the battery is higher than the target power threshold and the temperature is higher than the target temperature threshold, after the step of turning on the fan, the method further includes:
and acquiring a fan rotating speed value corresponding to the temperature according to the mapping relation between the temperature and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value.
Optionally, when the charging current is higher than the first target current threshold, after the step of turning on the fan, the method further includes:
and acquiring a fan rotating speed value corresponding to the charging current according to the mapping relation between the charging current and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value.
Optionally, when the charging current is lower than the first target current threshold and higher than the second target current threshold, and the temperature is higher than the target temperature threshold, after the step of turning on the fan, the method further includes:
and acquiring a fan rotating speed value corresponding to the temperature according to the mapping relation between the temperature and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value.
Optionally, the remaining battery capacity is obtained by a fuel gauge module inside the terminal; the temperature is obtained from the temperature corresponding to the resistance value of the temperature-sensitive resistor in the terminal; the charging current is obtained by a charging management chip in the terminal through the target resistor and the voltage on the two sides of the target resistor.
Optionally, the mapping relationship between the temperature and the charging current and the fan rotation speed value is stored in a mapping table, and the mapping table is stored in the terminal or the server.
Further, an embodiment of the present invention further provides a terminal, where the terminal includes at least one cooling fan, and the terminal at least includes a processor, a memory, and a communication bus
The communication bus is used for realizing communication connection between the processor and the memory;
the processor is used for executing one or more programs stored in the memory so as to realize the steps of the heat dissipation control method.
Further, an embodiment of the present invention also provides a computer-readable storage medium, where one or more programs are stored, and the one or more programs are executable by one or more processors to implement the steps of the heat dissipation control method described above.
The invention has the advantages of
The invention provides a heat dissipation control method, a terminal and a computer readable storage medium, aiming at the problem that the existing terminal heat dissipation scheme adopts the physical heat dissipation mode of attaching auxiliary materials such as graphite sheets and the like, the controllability is very limited, in a few terminals with heat dissipation fans, the control of the fan also needs manual control of the opening and closing of the fan, the control mode is not intelligent enough, and the wind speed cannot be controlled, meanwhile, the problems of the terminal such as endurance and the like are not facilitated, and by acquiring the residual capacity, the temperature and the charging current of the battery of the terminal, and the running state of the fan is adjusted according to the acquired residual electric quantity, temperature and charging current of the battery, so that the intelligent control of the cooling fan is realized, and the terminal can realize the intelligent control of the cooling fan without human intervention, the heat dissipation function of the fan is executed through self logic, so that unnecessary electric quantity consumption is reduced, and the use experience of a user is improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a diagram illustrating an alternative terminal hardware architecture for implementing various embodiments of the present invention;
fig. 2 is a flowchart of a heat dissipation control method according to a first embodiment of the invention;
FIG. 3 is a schematic diagram of an alternative implementation of various embodiments of the present invention;
FIG. 4 is a diagram illustrating a mapping table according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to a second embodiment of the present invention;
fig. 6 is a flowchart of a heat dissipation control method according to a second embodiment of the present invention;
FIG. 7 is a diagram illustrating a mapping table according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal in a third embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the Radio Frequency unit 101 may be configured to receive and transmit signals during a message transmission or call, specifically, receive downlink information of a base station and then process the received downlink information to the processor 110, and transmit uplink data to the base station. generally, the Radio Frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. furthermore, the Radio Frequency unit 101 may also communicate with a network and other devices through wireless communication, and the wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (wideband Code Division Multiple Access and Code Division Multiple Access, CDMA-synchronization Division Multiple Access, Frequency Division Multiple Access, TDD-Time Division Multiple Access, etc.), TD-SCDMA (synchronization-Time Division Multiple Access, TDD-Time Division Multiple Access, etc.), TDD-Time Division Multiple Access, etc.
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a liquid Crystal Display (L acquired Crystal Display, L CD), an Organic light-Emitting Diode (O L ED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
Based on the above mobile terminal hardware structure, various embodiments of the present invention are proposed.
First embodiment
In order to solve the problems that in the existing terminal heat dissipation scheme, the physical heat dissipation is performed by adopting a mode of attaching auxiliary materials such as graphite sheets, the controllability is very limited, and in a few terminals with heat dissipation fans, the fans are controlled to be manually controlled to be turned on and turned off, the control mode is not intelligent enough, the wind speed cannot be controlled, and the endurance of the terminals is not facilitated, the embodiment provides a heat dissipation control method which can be applied to various electronic terminals with heat dissipation fans, including various mobile terminals, such as mobile phones, flat panels, palmtop computers or notebook computers; the method can also be used for non-mobile terminals such as desktop computers and the like. Fig. 2 is a flowchart of a heat dissipation control method according to an embodiment of the present invention, where the heat dissipation control method includes the following steps:
s201: and acquiring the residual battery capacity, the temperature and the charging current of the terminal.
The terminal generally comprises a module for acquiring the electric quantity of the battery, a module for acquiring the internal temperature of the terminal and a module for acquiring the charging current of the terminal, and the terminal can acquire the residual electric quantity of the battery, the temperature of a specific part in the terminal and the current data in the charging process of the terminal from the modules. As shown in fig. 3, the terminal of the present embodiment includes a fuel gauge module 301 for acquiring battery power data; the temperature detection module 302 is used for acquiring the internal temperature of the terminal; and the charging module 303 is configured to obtain a current charging current of the terminal.
Taking a terminal loaded with a high-pass platform as an example, in the design scheme of the high-pass platform, a special electricity meter module can accurately acquire the charging and electricity consumption conditions of the electric quantity of a battery and provide real-time data to the central processing unit 304, and the central processing unit can be acquired by a UI layer engineer after acquiring the data, so that the visible electric quantity control of a user is realized. The power management chip of the high-pass platform integrates a management module for an NTC (negative temperature coefficient) resistor, and the change of the temperature is acquired by acquiring the change of the resistance value. For the charging current, the high-pass charging management chip obtains the value of the charging current through a resistance in the milliohm level during design, the principle is the well-known ohm law, and when the charging current passes through the certain resistance, the charging management chip obtains the voltage on two sides of the resistance to obtain the current data. The above-mentioned manner of obtaining the remaining battery capacity, the temperature and the charging current of the terminal can be taken as a feasible solution of the embodiment.
It should be understood that the remaining battery capacity, the temperature and the charging current may be obtained in real time, or at preset time intervals. The corresponding obtaining mode may be selected according to actual requirements, which is not limited in this embodiment.
S202: and adjusting the running state of the fan according to the acquired residual electric quantity, temperature and charging current of the battery.
After acquiring the data of the remaining battery capacity, the temperature, the charging current and the like, the terminal inputs the acquired data into the and logic control module of the central processing unit 304, and when the judgment result meets the preset condition through independent judgment or joint judgment of the data of the remaining battery capacity, the temperature, the charging current and the like. The result is transmitted to a MCU (MicrocontrollerUnit) module 305 of the fan, and the MCU module 305 drives the fan 306 according to the obtained result, so as to adjust the operating state of the fan, including the on/off state and the rotation speed of the fan, and return the operating state data of the fan to the cpu. It should be understood that the number of the fans is not limited in this embodiment, and at least one fan may be provided, for example, the fan 307 may be further included in fig. 3.
In this embodiment, the fan turning-on conditions include the following:
(1) and when the residual electric quantity of the battery is higher than the target electric quantity threshold value and the temperature is higher than the target temperature threshold value, the fan is started. It should be understood that the target power threshold and the target temperature threshold may be adjusted by a manufacturer according to the actual application of the terminal, or may be adjusted by a user. For example, when the target electric quantity threshold is set to 30% and the target temperature threshold is set to 40 degrees celsius, if the current residual electric quantity of the terminal is higher than 30% and the temperature is higher than 40 degrees celsius, the central processing unit of the terminal sends a command for turning on the fan to the MCU module of the fan, and the fan is turned on.
(2) When the charging current is higher than a first target current threshold value, starting a fan; the first target current threshold is a charging current which is easy to cause the internal temperature of the terminal to exceed a certain limit value in the charging process of the terminal. For example, when the charging current of a certain terminal exceeds 5A during charging, the internal temperature of the terminal is higher than 40 degrees celsius, and when the charging current of the certain terminal does not exceed 5A, the internal temperature of the terminal is not higher than 40 degrees celsius, 5A is taken as the first target current threshold. When the first target current threshold is 5A, if the charging current is higher than 5A, the central processing unit of the terminal sends a command for starting the fan to the MCU module of the fan, and the fan is started. It should be understood that the first target current threshold may be adjusted by the manufacturer according to the actual application of the terminal, or may be adjusted by the user.
(3) And when the charging current is lower than the first target current threshold and higher than the second target current threshold, and the temperature is higher than the target temperature threshold, the fan is started. The second target current threshold is a current meeting the most basic charging requirement, and can be adjusted by a manufacturer according to the actual application condition of the terminal or can be adjusted by a user. For example, when the second target current threshold is set to 1A and the first target current threshold is set to 5A, the target temperature is set to 40 degrees celsius, and if the current charging current of the terminal is greater than 1A and less than 5A and the current temperature of the terminal is greater than 40 degrees celsius, the central processing unit of the terminal sends a command for turning on the fan to the MCU module of the fan, and the fan is turned on. The second target current threshold is set to prevent the terminal from starting a fan to cause a slower charging speed or even stop charging when the terminal is in a special charging state and the charging current is too small, for example, when the terminal is connected with other devices through a USB (Universal Serial Bus) for charging, the charging current is very small, and if the terminal is started to dissipate heat, the charging time is longer.
In this embodiment, after the fan is turned on, the turning-off conditions of the fan include the following conditions:
(1) and when the residual capacity of the battery is lower than the target capacity threshold and the charging current is lower than a second target current threshold, the fan is turned off. When the current battery residual capacity of the terminal is lower than the target electric quantity threshold value and the charging current is lower than the second target current threshold value, in order to guarantee the cruising ability of the terminal, the terminal is prevented from being shut down due to the fact that the electric quantity is exhausted too fast, the use experience of a user is further influenced, if the terminal fan is in an opening state at the moment, the central processing unit of the terminal sends a command of closing the fan to the MCU module of the fan, and the fan is closed. It should be understood that the charging current being lower than the second target current threshold value does not only refer to a state where the charging current is too small, but also includes a state where the terminal is not charged, where the charging current of the terminal is 0.
(2) And when the charging current is lower than the first target current threshold and the temperature is lower than the target temperature threshold, the fan is turned off. For example, when the first target current threshold of the terminal is set to 5A, and the target temperature is set to 40 degrees celsius, if the current charging current of the terminal is less than 5A, and the current temperature of the terminal is lower than 40 degrees celsius, because the current charging current does not cause the interior of the terminal to overheat, and the temperature of the terminal at this time is not higher than 40 degrees, if the fan of the terminal at this time is in an on state, the central processing unit of the terminal sends an instruction for turning off the fan to the MCU module of the fan, and the fan is turned off.
In some embodiments of the present application, the method further includes performing rotation speed control on the started fan according to data such as the current battery remaining capacity and temperature of the terminal, and the specific implementation manner is as follows:
when the residual electric quantity of the battery is higher than a target electric quantity threshold value and the temperature is higher than a target temperature threshold value, after the fan is started, obtaining a fan rotating speed value corresponding to the temperature according to the mapping relation between the temperature and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value;
when the charging current is higher than a first target current threshold value, after the fan is started, obtaining a fan rotating speed value corresponding to the charging current according to the mapping relation between the charging current and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value;
when the charging current is lower than the first target current threshold and higher than the second target current threshold, and the temperature is higher than the target temperature threshold, after the fan is started, the fan rotating speed value corresponding to the temperature is obtained according to the mapping relation between the temperature and the fan rotating speed value, and the rotating speed of the fan is adjusted to the fan rotating speed value.
In some embodiments of the present application, as shown in fig. 4, the mapping relationship between the temperature and the fan speed value, and the mapping relationship between the charging current and the fan speed value may be stored in respective mapping tables, or may be stored in a mapping table, and when the mapping table is stored, the temperature and the charging current conditions need to be satisfied at the same time, so that the corresponding fan speed value can be selected. It should be understood that the mapping table in fig. 4 is only one possible mapping table in the present embodiment, and the specific content of the mapping table in the present embodiment is not limited, and any possible mapping table may be used. The mapping table can be stored locally in the terminal or stored in the server side and acquired by the terminal when needed. The mapping relation in the mapping table can be modified by a manufacturer or a user according to specific situations. For example, when the maximum rotation speed of the fan is 5000r/min, if the terminal temperature is 42 degrees, the corresponding rotation speed of the fan in the original mapping table is 3000r/min, and if the user wants to achieve a better cooling effect, the corresponding rotation speed of the fan when the temperature is 42 degrees in the mapping table can be modified to 4000 r/min.
The embodiment provides a heat dissipation control method, which is applied to a terminal with at least one heat dissipation fan, and the heat dissipation control method comprises the following steps: the method comprises the steps of obtaining data such as the residual battery capacity, the temperature and the charging current of a terminal, sending the obtained data to a central processing unit for judgment, sending a judgment result to a micro-processing unit of a fan, and adjusting the running state of the fan by the micro-processing unit of the fan according to the judgment result. The fan is comprehensively controlled through data such as battery residual capacity, temperature and charging current according to the terminal, self-adaption heat dissipation management of the terminal fan is achieved, terminal heat dissipation does not need human intervention, the terminal is more intelligent, electric quantity consumption caused by long-term opening of the fan is reduced, and user experience is improved.
Second embodiment
In order to solve the problems that in the existing terminal heat dissipation scheme, heat dissipation is physically performed by adopting a mode of attaching auxiliary materials such as graphite sheets, controllability is very limited, and in a few terminals with heat dissipation fans, the fans are controlled to be manually controlled to be turned on and off, the control mode is not intelligent enough, the wind speed cannot be controlled, and the like, and meanwhile, the terminal is not beneficial to endurance and the like, the embodiment provides the heat dissipation control method which can be applied to various electronic terminals with a plurality of heat dissipation fans, including various mobile terminals such as mobile phones, flat panels, palm computers or notebook computers; the method can also be used for non-mobile terminals such as desktop computers and the like.
Next, a heat dissipation control method in the present embodiment will be described by taking a terminal provided with two fans in fig. 5 as an example. Where the fan 501 is close to the processor 503 of the terminal and the fan 502 is close to the battery 504 of the terminal.
Fig. 6 is a flowchart of a heat dissipation control method according to an embodiment of the present invention, where the heat dissipation control method includes the following steps:
s601: and acquiring the residual battery capacity, the temperature and the charging current of the terminal.
The terminal generally comprises a module for acquiring the electric quantity of the battery, a module for acquiring the internal temperature of the terminal and a module for acquiring the charging current of the terminal, and the terminal can acquire the residual electric quantity of the battery, the temperature of a specific part in the terminal and the current data in the charging process of the terminal from the modules. As shown in fig. 3, the terminal of the present embodiment includes a fuel gauge module 301 for acquiring battery power data; the temperature detection module 302 is used for acquiring the internal temperature of the terminal; and the charging module 303 is configured to obtain a current charging current of the terminal.
Taking a terminal loaded with a high-pass platform as an example, in the design scheme of the high-pass platform, a special electricity meter module can accurately acquire the charging and electricity consumption conditions of the electric quantity of a battery and provide real-time data to a Central Processing Unit (CPU), and the central processing unit can be acquired by a User Interface (UI) layer engineer after acquiring the data, so that the visible electric quantity control of a user is realized. The power management chip of the high-pass platform integrates a management module for an NTC (negative temperature coefficient) resistor, and the change of the temperature is acquired by acquiring the change of the resistance value. For the charging current, the high-pass charging management chip obtains the value of the charging current through a resistance in the milliohm level during design, the principle is the well-known ohm law, and when the charging current passes through the certain resistance, the charging management chip obtains the voltage on two sides of the resistance to obtain the current data. The above-mentioned manner of obtaining the remaining battery capacity, the temperature and the charging current of the terminal can be taken as a feasible solution of the embodiment.
It should be understood that the remaining battery capacity, the temperature and the charging current may be obtained in real time, or at preset time intervals. The corresponding obtaining mode may be selected according to actual requirements, which is not limited in this embodiment.
S602: and determining the target fan according to the acquired temperature and the charging current.
In this step, if the temperature of the terminal is higher than the target temperature threshold, which indicates that the processor portion of the terminal generates a large amount of heat at this time, the fan 501 is determined to be the target fan; if the charging current of the terminal is greater than the first target current threshold, which indicates that the terminal is performing high-power charging at the moment, determining the fan 502 as a target fan; if the temperature of the terminal is higher than the target temperature threshold and the charging current of the terminal is greater than the first target current threshold, the fan 501 and the fan 502 are determined as the target fans.
S603: and adjusting the target fan according to the acquired residual electric quantity, temperature and charging current of the battery.
In this embodiment, the turning-on conditions of the target fan include the following:
(1) and when the residual electric quantity of the battery is higher than the target electric quantity threshold value and the temperature is higher than the target temperature threshold value, starting the target fan. It should be understood that the target power threshold and the target temperature threshold may be adjusted by a manufacturer according to the actual application of the terminal, or may be adjusted by a user. For example, when the target electric quantity threshold is set to 30% and the target temperature threshold is set to 40 ℃, if the current residual electric quantity of the terminal is higher than 30% and the temperature is higher than 40 ℃, the central processing unit of the terminal sends a command for starting the fan to the MCU module of the target fan, and the target fan is started.
(2) When the charging current is higher than a first target current threshold value, starting a target fan; the first target current threshold is a charging current which is easy to cause the internal temperature of the terminal to exceed a certain limit value in the charging process of the terminal. For example, when the charging current of a certain terminal exceeds 5A during charging, the internal temperature of the terminal is higher than 40 degrees celsius, and when the charging current of the certain terminal does not exceed 5A, the internal temperature of the terminal is not higher than 40 degrees celsius, 5A is taken as the first target current threshold. When the first target current threshold is 5A, if the charging current is higher than 5A, the central processing unit of the terminal sends a command for starting the fan to the MCU module of the target fan, and the target fan is started. It should be understood that the first target current threshold may be adjusted by the manufacturer according to the actual application of the terminal, or may be adjusted by the user.
(3) And when the charging current is lower than the first target current threshold and higher than the second target current threshold, and the temperature is higher than the target temperature threshold, the target fan is started. The second target current threshold is a current meeting the most basic charging requirement, and can be adjusted by a manufacturer according to the actual application condition of the terminal or can be adjusted by a user. For example, when the second target current threshold is set to 1A and the first target current threshold is set to 5A, the target temperature is set to 40 degrees celsius, and if the current charging current of the terminal is greater than 1A and less than 5A and the current temperature of the terminal is greater than 40 degrees celsius, the central processing unit of the terminal sends a command for turning on the fan to the MCU module of the target fan, and the target fan is turned on. The second target current threshold is set to prevent the terminal from starting a fan to cause a slower charging speed or even stop charging when the terminal is in a special charging state and the charging current is too small, for example, when the terminal is connected with other devices through a USB (Universal Serial Bus) for charging, the charging current is very small, and if the terminal is started to dissipate heat, the charging time is longer.
In this embodiment, when the fan is in the on state, the off condition of the fan includes the following:
(1) and when the residual capacity of the battery is lower than the target capacity threshold and the charging current is lower than a second target current threshold, the fan is turned off. When the current battery residual capacity of the terminal is lower than the target electric quantity threshold value and the charging current is lower than the second target current threshold value, in order to guarantee the cruising ability of the terminal, the terminal is prevented from being shut down due to the fact that the electric quantity is exhausted too fast, the use experience of a user is further influenced, if the terminal fan is in an opening state at the moment, the central processing unit of the terminal sends a command of closing the fan to the MCU module of the fan, and the fan is closed. It should be understood that the charging current being lower than the second target current threshold value does not only refer to a state where the charging current is too small, but also includes a state where the terminal is not charged, where the charging current of the terminal is 0.
(2) And when the charging current is lower than the first target current threshold and the temperature is lower than the target temperature threshold, the fan is turned off. For example, when the first target current threshold of the terminal is set to 5A, and the target temperature is set to 40 degrees celsius, if the current charging current of the terminal is less than 5A, and the current temperature of the terminal is lower than 40 degrees celsius, because the current charging current does not cause the interior of the terminal to overheat, and the temperature of the terminal at this time is not higher than 40 degrees, if the fan of the terminal at this time is in an on state, the central processing unit of the terminal sends an instruction for turning off the fan to the MCU module of the fan, and the fan is turned off.
In some embodiments of the present application, the method further includes performing rotation speed control on the started fan according to data such as the current battery remaining capacity and temperature of the terminal, and the specific implementation manner is as follows:
when the residual electric quantity of the battery is higher than the target electric quantity threshold value and the temperature is higher than the target temperature threshold value, after the target fan is started, obtaining a fan rotating speed value corresponding to the temperature according to the mapping relation between the temperature and the fan rotating speed value, and adjusting the rotating speed of the target fan to the fan rotating speed value;
when the charging current is higher than a first target current threshold value, after a target fan is started, obtaining a fan rotating speed value corresponding to the charging current according to the mapping relation between the charging current and the fan rotating speed value, and adjusting the rotating speed of the target fan to the fan rotating speed value;
when the charging current is lower than a first target current threshold value and higher than a second target current threshold value, and the temperature is higher than a target temperature threshold value, after the target fan is started, a fan rotating speed value corresponding to the temperature is obtained according to the mapping relation between the temperature and the fan rotating speed value, and the rotating speed of the target fan is adjusted to the fan rotating speed value.
In some embodiments of the present application, as shown in fig. 7, the mapping relationship between the temperature and the target fan speed value, and the mapping relationship between the charging current and the fan speed value may be stored in different mapping tables, or may be stored in the same mapping table. It should be understood that the mapping table in fig. 7 is only one possible mapping table in the present embodiment, and the specific content of the mapping table in the present embodiment is not limited, and any possible mapping table may be used. The mapping table can be stored locally in the terminal or stored in the server side and acquired by the terminal when needed. The mapping relation in the mapping table can be modified by a manufacturer or a user according to specific situations. For example, when the maximum rotation speed of the fan is 5000r/min, if the terminal temperature is 42 degrees, the corresponding rotation speed of the fan 501 in the original mapping table is 3000r/min, and if the user wants to achieve a better cooling effect, the corresponding rotation speed of the fan 501 when the temperature is 42 degrees in the mapping table may be modified to 4000 r/min.
The embodiment provides a heat dissipation control method, which is applied to a terminal at least provided with a plurality of heat dissipation fans, and the heat dissipation control method comprises the following steps: the method comprises the steps of obtaining data such as the residual battery capacity, the temperature and the charging current of a terminal, determining a target fan according to the obtained data, sending the obtained data to a central processing unit for judgment, sending a judgment result to a micro-processing unit of the target fan, and adjusting the running state of the fan by the micro-processing unit of the target fan according to the judgment result. The target fan is comprehensively controlled through data such as the battery residual capacity, the temperature and the charging current according to the terminal, self-adaptive heat dissipation management of each fan in the terminal is achieved, the terminal does not need human intervention for heat dissipation, the terminal is more intelligent, the power consumption caused by long-term opening of the fan is reduced, and the user experience is improved.
Third embodiment
The present embodiment provides a terminal comprising at least one fan, and further comprising, as shown in fig. 8, a processor 81, a memory 82 and a communication bus 83, wherein:
the communication bus 83 is used for realizing connection communication between the processor 81 and the memory 82;
the processor 81 is configured to execute one or more programs stored in the memory 82 to implement the steps of the heat dissipation control method in the first embodiment and/or the second embodiment described above.
The present embodiment also provides a computer-readable storage medium, where one or more programs are stored, and the one or more programs may be executed by one or more processors to implement steps in the heat dissipation control method as in the first embodiment and/or the second embodiment, which are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A heat dissipation control method is applied to a terminal, at least one fan is arranged in the terminal, and the heat dissipation control method is characterized by comprising the following steps:
acquiring the residual battery capacity, the temperature and the charging current of the terminal;
and adjusting the running state of the fan according to the acquired residual battery capacity, the acquired temperature and the acquired charging current.
2. The heat dissipation control method according to claim 1, wherein the adjusting the operating state of the fan according to the acquired remaining battery power, the acquired temperature, and the acquired charging current includes:
when the residual electric quantity of the battery is higher than a target electric quantity threshold value and the temperature is higher than a target temperature threshold value, the fan is started;
turning on the fan when the charging current is higher than a first target current threshold;
and when the charging current is lower than a first target current threshold and higher than a second target current threshold, and the temperature is higher than a target temperature threshold, the fan is started.
3. The heat dissipation control method of claim 1, wherein the adjusting the operating state of the fan according to the acquired remaining battery power, the acquired temperature, and the acquired charging current further comprises:
when the residual battery capacity is lower than a target capacity threshold and the charging current is lower than a second target current threshold, turning off the fan;
turning off the fan when the charging current is below a first target current threshold and the temperature is below a target temperature threshold.
4. The method as claimed in claim 2, wherein the step of turning on the fan when the remaining battery power is higher than the target power threshold and the temperature is higher than the target temperature threshold further comprises:
and acquiring the fan rotating speed value corresponding to the temperature according to the mapping relation between the temperature and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value.
5. The heat dissipation control method of claim 2, wherein after the step of turning on the fan when the charging current is higher than a first target current threshold, further comprising:
and acquiring the fan rotating speed value corresponding to the charging current according to the mapping relation between the charging current and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value.
6. The heat dissipation control method of claim 2, wherein when the charging current is lower than a first target current threshold and higher than a second target current threshold, and the temperature is higher than a target temperature threshold, after the step of turning on the fan, further comprising:
and acquiring the fan rotating speed value corresponding to the temperature according to the mapping relation between the temperature and the fan rotating speed value, and adjusting the rotating speed of the fan to the fan rotating speed value.
7. The heat dissipation control method according to claims 1 to 6, wherein the battery remaining capacity is acquired by a fuel gauge module inside the terminal; the temperature is obtained from the temperature corresponding to the resistance value of the temperature-sensitive resistor in the terminal; the charging current is obtained by a charging management chip in the terminal through a target resistor and voltages on two sides of the target resistor.
8. The heat dissipation control method of claim 7, wherein the mapping relationship between the temperature and the charging current and the fan speed value is stored in a mapping table, and the mapping table is stored in a terminal or a server.
9. A terminal comprising at least one cooling fan, characterized in that the terminal further comprises a processor, a memory and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the heat dissipation control method according to any one of claims 1 to 8.
10. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps of the heat dissipation control method according to any one of claims 1 to 8.
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