CN107817397A - Detection method and terminal equipment for abnormal charging heating - Google Patents

Abstract

The embodiment of the present invention relates to the field of terminal technology, and discloses a detection method for abnormal charging heating and a terminal device. The method includes: obtaining a first voltage _U1 and a first current _I1 of a universal serial bus (USB) port of a terminal device being charged, and obtaining a second voltage _U2 of a battery of the terminal device and a second current _I2 flowing into the battery, and then calculating a target charging efficiency according to _U1 , _I1 , _U2 and _I2 , and then determining whether the terminal device is abnormally charged and heated according to the target charging efficiency. It can be seen that by implementing the embodiment of the present invention, the power loss of the terminal device during charging can be monitored according to the power input from the USB to the terminal device and the charging power at the battery, so as to monitor in real time whether the terminal device is abnormally charged and heated.

Description

Detection method and terminal equipment for abnormal charging heating

technical field

The present invention relates to the technical field of terminals, in particular to a method for detecting abnormal heating during charging and a terminal device.

Background technique

It is normal for the terminal device to heat up during charging. However, if the charging heat of the terminal equipment is too high, it will accelerate the aging of the components in the terminal equipment and reduce the service life of the terminal equipment. In severe cases, battery explosion accidents may occur, endangering personal safety.

Therefore, during the charging process of the terminal device, it becomes a necessary measure to detect whether the terminal device is abnormally heated. For example, during charging, a temperature rise tester may be used to measure the temperature rise of the terminal device at intervals to determine whether the terminal device is abnormally heated.

However, the operation of the temperature rise tester is complicated, and it can only determine whether the terminal device is abnormally charged and heated by measuring the temperature change within a period of time, and its real-time monitoring performance is poor.

Contents of the invention

Embodiments of the present invention provide a method for detecting abnormal charging and heating and a terminal device, which can monitor in real time whether the terminal device has abnormal charging and heating.

The first aspect of the embodiment of the present invention discloses a method for detecting abnormal heating during charging, including:

Obtain the first voltage U ₁ and the first current I ₁ of the Universal Serial Bus USB port that the terminal device is charging;

Acquiring the second voltage U2 of the battery of the terminal device and the _second current _I2 flowing into the battery;

calculating a target charging efficiency according to the U ₁ , the I ₁ , the U ₂ and the I ₂ ;

It is determined according to the target charging efficiency whether the terminal device is abnormally heated during charging.

The second aspect of the embodiment of the present invention discloses a terminal device, including:

The first obtaining unit is used to obtain the first voltage U ₁ and the first current I ₁ of the Universal Serial Bus USB port that the terminal device is charging;

A second acquisition unit, configured to acquire a second voltage U2 of the battery of the terminal device and a _second current _I2 flowing into the battery;

A first calculation unit, configured to calculate a target charging efficiency according to the U ₁ , the I ₁ , the U ₂ and the I ₂ ;

The first determining unit is configured to determine whether the terminal device is abnormally heated during charging according to the target charging efficiency.

The third aspect of the embodiment of the present invention discloses a terminal device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to Executed by the processor, the program includes instructions for executing the steps of the method described in the first aspect above.

The fourth aspect of the embodiment of the present invention discloses a computer-readable storage medium, which stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the method described in the first aspect above, and the computer Includes terminal equipment.

The fifth aspect of the embodiment of the present invention discloses a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause the computer to execute the present invention. Part or all of the steps described in any method of the first aspect of the embodiment. The computer program product may be a software installation package, and the computer includes a terminal device.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

In the embodiment of the present invention, the first voltage U ₁ and the first current I ₁ of the USB port of the universal serial bus that the terminal device is charging are obtained, and the second voltage U ₂ of the battery of the terminal device and the second current I flowing into the battery are obtained _2. Then calculate the target charging efficiency according to U ₁ , I ₁ , U ₂ and I ₂ , and then determine whether the terminal device is abnormally heated during charging according to the target charging efficiency. It can be seen that, implementing the embodiment of the present invention, the power loss during charging of the terminal device can be monitored according to the power input from the USB to the terminal device and the charging power at the battery, so as to monitor in real time whether the terminal device is abnormally heated during charging.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic flowchart of a detection method for abnormal charging heating disclosed in an embodiment of the present invention;

Fig. 2 is a line graph of battery power and charging efficiency disclosed in an embodiment of the present invention;

Fig. 3 is a schematic flowchart of another detection method for abnormal charging heating disclosed in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a terminal device disclosed in an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a first determining unit disclosed in an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another terminal device disclosed in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another terminal device disclosed in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another terminal device disclosed in an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods or apparatuses.

The terminal devices involved in the embodiments of the present invention may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal device) and so on. For convenience of description, the devices mentioned above are collectively referred to as terminal devices. Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

Embodiments of the present invention provide a method for detecting abnormal charging and heating and a terminal device, which can monitor in real time whether the terminal device has abnormal charging and heating. Each will be described in detail below.

Please refer to FIG. 1 . FIG. 1 is a schematic flowchart of a method for detecting abnormal heating during charging disclosed in an embodiment of the present invention. Wherein, the abnormal detection method for charging heating shown in FIG. 1 may include the following steps:

101. Acquire a first voltage U ₁ and a first current I ₁ of a USB port of a universal serial bus that a terminal device is charging.

In the embodiment of the present invention, the terminal device may be configured with a fuel gauge at the USB port, so as to acquire the first voltage U ₁ and the first current I ₁ of the USB port in real time.

102. Acquire the second voltage U ₂ of the battery of the terminal device and the second current I ₂ flowing into the battery.

In the embodiment of the present invention, the terminal device can also be configured with a fuel gauge at the electrode of the battery, so as to obtain the second voltage U ₂ of the battery and the second current I ₂ flowing into the battery in real time.

103. Calculate the target charging efficiency according to U ₁ , I ₁ , U ₂ and I ₂ .

As an optional implementation, after obtaining U ₁ , I ₁ , U ₂ and I ₂ , the target charging efficiency can be calculated by the following formula:

Among them, X is the target charging efficiency.

In the above embodiments, by calculating the ratio between the power at the battery and the input power at the USB during charging, the target charging efficiency can be obtained, so as to know the power loss during charging. Analysis of the target charging efficiency shows that the higher the target charging efficiency is, the lower the power loss during the charging process will be, and the lower the heat generation of the terminal equipment will be; The higher the fever. Therefore, by monitoring the target charging efficiency, it is possible to monitor whether the terminal device is abnormally heated during charging.

Furthermore, during the charging process, factors such as the ambient temperature, the usage of the terminal equipment, and the aging of components of the terminal equipment will affect the charging efficiency. In order to make the calculated target charging efficiency more accurately reflect the charging heat loss of the terminal device, a certain correction coefficient may be included in the above calculation method of the target charging efficiency.

For example, if only the influence of ambient temperature is considered, in the normal operating temperature range of terminal equipment (for example, minus 10°C to minus 40°C), the higher the ambient temperature, the higher the charging efficiency; assuming that the parameters introduced by the ambient temperature is α (α is greater than 1), then the calculation formula of the corrected target charging efficiency is:

104. Determine whether the terminal device is abnormally heated during charging according to the target charging efficiency.

As an optional implementation, the terminal device can obtain the current battery power value, then query the standard charging efficiency corresponding to the power value, and then compare the target charging efficiency with the standard charging efficiency. If the target charging efficiency is significantly lower than If the standard charging efficiency is lower than the standard charging efficiency, it is determined that the terminal device is abnormally heated during charging. Wherein, the above-mentioned standard charging efficiency may be pre-measured, and the charging efficiency of the terminal device at the electric power value under the condition that there is no abnormal heating.

As another optional implementation, the terminal device can obtain the current battery power value, and calculate the target proportional relationship between the target charging efficiency and the power value, and then compare it with the preset proportional relationship at the power value to obtain the difference , if the difference is greater than the first preset threshold, it is determined that the terminal device is abnormally heated during charging.

The above implementation manners can be embodied by a line graph of battery power and charging efficiency. Please refer to FIG. 2 . FIG. 2 is a broken line graph of battery power and charging efficiency disclosed in an embodiment of the present invention. In Figure 2, the broken line represented by a square is a schematic diagram of the relationship between the battery power and charging efficiency obtained by the terminal device when there is no abnormal charging and heating; the broken line represented by a rhombus is the relationship between the battery power and charging efficiency obtained by the monitoring terminal device Relationship diagram. Wherein, the horizontal axis represents the battery power percentage, and the vertical axis represents the charging efficiency. For example, if the battery power of the current terminal device is 60%, the difference between the corresponding charging efficiency and X1 and the charging efficiency X2 when the charging efficiency is abnormal without charging is δ, and if δ is greater than 0.1, it is determined that the terminal device is abnormally charging and heating .

In addition, in the embodiment of the present invention, it is also possible to determine whether the terminal device is abnormally charged and heated in the following manner:

Calculate the target resistance value of the battery according to U ₂ and I ₂ , then obtain the current battery power value, and then obtain the standard resistance value corresponding to the power value; compare the target resistance value with the standard resistance value, if the target resistance value and the standard resistance value If the difference is greater than the second preset threshold, it is determined that the terminal device is abnormally heated during charging.

In the above embodiments, if the resistance of the battery increases (that is, the target resistance is greater than the standard resistance), more power will be lost and converted into heat, resulting in abnormal heating of the terminal device during charging.

It can be seen that using the method described in Figure 1, the power loss during charging of the terminal device can be monitored according to the power input from the USB to the terminal device and the charging power at the battery; since the power loss will mainly be converted into heat energy, by monitoring the power loss It can monitor in real time whether the terminal device is charging and heating abnormally.

Please refer to FIG. 3 . FIG. 3 is a schematic flowchart of another detection method for abnormal charging heating disclosed by an embodiment of the present invention. As shown in Figure 3, the method may include the following steps:

301. Acquire a first voltage U ₁ and a first current I ₁ of a USB port of a universal serial bus that a terminal device is charging.

In the embodiment of the present invention, the terminal device may be configured with a fuel gauge at the USB port, so as to acquire the first voltage U ₁ and the first current I ₁ of the USB port in real time.

302. Acquire the second voltage U ₂ of the battery of the terminal device and the second current I ₂ flowing into the battery.

In the embodiment of the present invention, the terminal device can also be configured with a fuel gauge at the electrode of the battery, so as to obtain the second voltage U ₂ of the battery and the second current I ₂ flowing into the battery in real time.

303. Calculate the target charging efficiency according to U ₁ , I ₁ , U ₂ and I ₂ .

As an optional implementation, after obtaining U ₁ , I ₁ , U ₂ and I ₂ , the target charging efficiency can be calculated by the following formula:

Among them, X is the target charging efficiency.

In the above embodiments, by calculating the ratio between the power at the battery and the input power at the USB during charging, the target charging efficiency can be obtained, so as to know the power loss during charging. Analysis of the target charging efficiency shows that the higher the target charging efficiency is, the lower the power loss during the charging process will be, and the lower the heat generation of the terminal equipment will be; The higher the fever. Therefore, by monitoring the target charging efficiency, it is possible to monitor whether the terminal device is abnormally heated during charging.

304. Determine whether the terminal device is abnormally heated during charging according to the target charging efficiency.

As an optional implementation, the terminal device can obtain the current battery power value, then query the standard charging efficiency corresponding to the power value, and then compare the target charging efficiency with the standard charging efficiency. If the target charging efficiency is significantly lower than If the standard charging efficiency is lower than the standard charging efficiency, it is determined that the terminal device is abnormally heated during charging. Wherein, the above-mentioned standard charging efficiency may be pre-measured, and the charging efficiency of the terminal device at the electric power value under the condition that there is no abnormal heating.

305. In the case that the terminal device is abnormally heated during charging, obtain a running process in the terminal device.

In the embodiment of the present invention, if the terminal device is abnormally heated during charging, methods such as reducing the processes running in the terminal device and reducing the operating power consumption of the processor can be considered to avoid further deterioration of the heat generation of the terminal device.

306. Determine the priority of the process. If the priority of the process is low, terminate the process. If the priority of the process is high, reduce the processor frequency of the terminal device to run the process.

As another optional implementation, the terminal device can also output a prompt message to remind the user to stop charging or stop using the terminal device during charging when the charging heat is abnormal, so as to alleviate the heat generation of the terminal device and prolong the life of the terminal device. To avoid dangerous accidents such as battery explosion.

It can be seen that using the method described in Figure 3, the power loss during charging of the terminal device can be monitored according to the power input from the USB to the terminal device and the charging power at the battery; since the power loss will mainly be converted into heat energy, by monitoring the power loss It can monitor in real time whether the terminal device is charging and heating abnormally.

Please refer to FIG. 4 . FIG. 4 is a schematic structural diagram of a terminal device 400 disclosed in an embodiment of the present invention. As shown in Figure 4, the terminal equipment may include:

The first obtaining unit 401 is configured to obtain a first voltage U ₁ and a first current I ₁ of a USB port of a USB port that the terminal device is charging.

In the embodiment of the present invention, the first acquisition unit 401 may be a fuel gauge, so as to acquire the first voltage U ₁ and the first current I ₁ of the USB port in real time.

The second obtaining unit 402 is configured to obtain the second voltage U ₂ of the battery of the terminal device and the second current I ₂ flowing into the battery.

In the embodiment of the present invention, the second acquisition unit 402 may be a fuel gauge, so as to acquire the second voltage U ₂ of the battery and the second current I ₂ flowing into the battery in real time.

The first calculation unit 403 is configured to calculate the target charging efficiency according to U ₁ , I ₁ , U ₂ and I ₂ .

In the embodiment of the present invention, after obtaining U ₁ , I ₁ , U ₂ and I ₂ , the target charging efficiency can be calculated by the following formula:

Among them, X is the target charging efficiency.

Wherein, by calculating the ratio between the power at the battery and the input power at the USB during charging, the target charging efficiency can be obtained, so as to know the power loss during charging. Analysis of the target charging efficiency shows that the higher the target charging efficiency is, the lower the power loss during the charging process will be, and the lower the heat generation of the terminal equipment will be; The higher the fever. Therefore, by monitoring the target charging efficiency, it is possible to monitor whether the terminal device is abnormally heated during charging.

The first determining unit 404 is configured to determine whether the terminal device is abnormally heated during charging according to the target charging efficiency.

As an optional implementation, the terminal device can obtain the current battery power value, then query the standard charging efficiency corresponding to the power value, and then compare the target charging efficiency with the standard charging efficiency. If the target charging efficiency is significantly lower than If the standard charging efficiency is lower than the standard charging efficiency, it is determined that the terminal device is abnormally heated during charging. Wherein, the above-mentioned standard charging efficiency may be pre-measured, and the charging efficiency of the terminal device at the electric power value under the condition that there is no abnormal heating.

As another optional implementation, the terminal device can obtain the current battery power value, and calculate the target proportional relationship between the target charging efficiency and the power value, and then compare it with the preset proportional relationship at the power value to obtain the difference , if the difference is greater than the first preset threshold, it is determined that the terminal device is abnormally heated during charging.

The above implementation manners can be embodied by a line graph of battery power and charging efficiency. Please refer to FIG. 2 . FIG. 2 is a broken line graph of battery power and charging efficiency disclosed in an embodiment of the present invention. In Figure 2, the broken line represented by a square is a schematic diagram of the relationship between the battery power and charging efficiency obtained by the terminal device when there is no abnormal charging and heating; the broken line represented by a rhombus is the relationship between the battery power and charging efficiency obtained by the monitoring terminal device Relationship diagram. Wherein, the horizontal axis represents the battery power percentage, and the vertical axis represents the charging efficiency. For example, if the battery power of the current terminal device is 60%, the difference between the corresponding charging efficiency and X1 and the charging efficiency X2 when the charging efficiency is abnormal without charging is δ, and if δ is greater than 0.1, it is determined that the terminal device is abnormally charging and heating .

As an optional implementation manner, the first determining unit 404 may include: an acquiring subunit 4041 , a calculating subunit 4042 , a comparing subunit 4043 and a determining subunit 4044 . Please refer to FIG. 5 , which is a schematic structural diagram of a first determination unit 404 disclosed in an embodiment of the present invention. in:

Obtaining subunit 4041, used to obtain the current battery power value;

Calculation subunit 4042, used to calculate the target proportional relationship between the target charging efficiency and the power value;

A comparing subunit 4043, configured to compare the target proportional relationship with the preset proportional relationship;

The determining subunit 4044 is configured to determine that the terminal device is abnormally heated during charging if the difference between the target proportional relationship and the preset proportional relationship is greater than a first preset threshold.

It can be seen that the terminal device described in Figure 4 can monitor the power loss when the terminal device is charging according to the power input from the USB to the terminal device and the charging power at the battery; It can monitor in real time whether the terminal device is charging and heating abnormally.

Please refer to FIG. 6 together. FIG. 6 is a schematic structural diagram of another terminal device 600 disclosed in an embodiment of the present invention. Wherein, the terminal equipment shown in FIG. 6 is obtained by optimizing the terminal equipment shown in FIG. 4. Compared with the terminal equipment shown in FIG. 4, the terminal equipment shown in FIG. 6 also includes:

The fifth obtaining unit 405 is used to obtain the process running in the terminal device when the terminal device is abnormally heated during charging;

A third determining unit 406, configured to determine the priority of the process;

The control unit 407 is configured to terminate the process if the priority of the process is low, and reduce the processor frequency of the terminal device to run the process if the priority of the process is high.

In the embodiment of the present invention, if the terminal device is abnormally heated during charging, methods such as reducing the processes running in the terminal device and reducing the operating power consumption of the processor can be considered to avoid further deterioration of the heat generation of the terminal device.

In addition, terminal equipment can also include:

The _second calculation unit is used to calculate the target resistance value of the battery according to U2 and _I2 ;

The third acquisition unit is used to acquire the current battery power value;

The fourth acquisition unit is used to acquire the standard resistance value corresponding to the electric quantity value;

A comparison unit, used to compare the target resistance value with the standard resistance value;

The second determination unit is configured to determine that the terminal device is abnormally heated during charging if the difference between the target resistance value and the standard resistance value is greater than a second preset threshold.

The aforementioned second calculation unit, third acquisition unit, fourth acquisition unit, comparison unit and second determination unit are not shown in the drawings.

In addition, terminal equipment can also include:

The fourth determining unit is used to determine whether the terminal device is in a wake-up state when the terminal device is abnormally heated during charging;

The notification unit is configured to output a prompt message to remind the user that the terminal device is abnormally heated during charging if the terminal device is in the wake-up state.

The above fourth determination unit and notification unit are not shown in the drawings.

In the embodiment of the present invention, the terminal device can also output a prompt message to remind the user to stop charging or stop using the terminal device during charging when the charging heat is abnormal, so as to alleviate the heat generation of the terminal device and prolong the service life of the terminal device. Avoid dangerous accidents such as battery explosion.

It can be seen that the terminal device described in Figure 6 can monitor the power loss when the terminal device is charging according to the power input from the USB to the terminal device and the charging power at the battery; since the power loss will mainly be converted into heat energy, by monitoring the power loss It can monitor in real time whether the terminal device is charging and heating abnormally.

Please refer to FIG. 7 , which is a schematic structural diagram of another terminal device 700 disclosed in an embodiment of the present invention. As shown in the figure, the terminal device includes a processor 701, a memory 702, a communication interface 703, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the above method embodiments.

By way of example, the program includes instructions for performing the following steps:

Obtain the first voltage U ₁ and the first current I ₁ of the Universal Serial Bus USB port that the terminal device is charging;

Acquiring the second voltage U2 of the battery of the terminal device and the _second current _I2 flowing into the battery;

calculating a target charging efficiency according to the U ₁ , the I ₁ , the U ₂ and the I ₂ ;

It is determined according to the target charging efficiency whether the terminal device is abnormally heated during charging.

Wherein, the calculation method of the target charging efficiency is:

Wherein, X is the target charging efficiency.

As an optional implementation manner, in terms of determining whether the terminal device is abnormally charged and heated according to the target charging efficiency, the program includes instructions specifically for performing the following steps:

Obtain the power value of the current battery;

calculating a target proportional relationship between the target charging efficiency and the electric quantity;

The target proportional relationship is compared with a preset proportional relationship, and if the difference between the target proportional relationship and the preset proportional relationship is greater than a first preset threshold, it is determined that the terminal device is abnormally heated during charging.

It can be seen that the terminal device described in Figure 7 can monitor the power loss when the terminal device is charging according to the power input from the USB to the terminal device and the charging power at the battery; It can monitor in real time whether the terminal device is charging and heating abnormally.

Please refer to FIG. 8 , which is a schematic structural diagram of a terminal device 800 disclosed in an embodiment of the present invention. As shown in FIG. 8 , for the convenience of description, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The terminal can be any terminal device including mobile phone, tablet computer, PDA (Personal Digital Assistant, personal digital assistant), POS (Point of Sales, sales terminal), vehicle-mounted computer, etc. Taking the terminal device as a mobile phone as an example:

FIG. 8 is a block diagram showing a partial structure of a mobile phone related to a terminal device provided by an embodiment of the present invention. Referring to FIG. 8 , the mobile phone includes: a radio frequency (Radio Frequency, RF) circuit 801, a memory 802, an input unit 803, a display unit 804, a sensor 805, an audio circuit 806, a wireless fidelity (wireless fidelity, WiFi) module 807, and a processor 808 , and power supply 809 and other components. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 8 does not constitute a limitation to the mobile phone, and may include more or less components than shown in the figure, or combine some components, or arrange different components.

The following is a specific introduction to each component of the mobile phone in conjunction with Figure 8:

The RF circuit 801 can be used for sending and receiving information or receiving and sending signals during a call. In particular, after receiving the downlink information of the base station, it is processed by the processor 808; in addition, the designed uplink data is sent to the base station. Generally, the RF circuit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, and the like. In addition, the RF circuit 801 can also communicate with networks and other devices through wireless communication. The above-mentioned wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile Communication (Global System of Mobile communication, GSM), General Packet Radio Service (General Packet Radio Service, GPRS), Code Division Multiple Access (Code Division Multiple Access) , CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (Long Term Evolution, LTE), email, Short Messaging Service (Short Messaging Service, SMS), etc.

The memory 802 can be used to store software programs and modules, and the processor 808 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 802 . The memory 802 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); Data created by the use of mobile phones (such as audio data, phonebook, etc.), etc. In addition, the memory 802 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The input unit 803 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the mobile phone. Specifically, the input unit 803 may include a touch panel 8031 . The touch panel 8031, also referred to as a touch screen, can collect touch operations of the user on or near it (for example, the user uses any suitable object or accessory such as a finger, a stylus, etc. on the touch panel 8031 or near the touch panel 8031 operation), and drive the corresponding connection device according to the preset program. Optionally, the touch panel 8031 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 808, and can receive and execute commands from the processor set 808. In addition, the touch panel 8031 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave.

The display unit 804 can be used to display information input by the user or provided to the user and various menus of the mobile phone. The display unit 804 may include a display panel 8041. Optionally, the display panel 8041 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like. Furthermore, the touch panel 8031 can cover the display panel 8041. When the touch panel 8031 detects a touch operation on or near it, it sends it to the processor set 808 to determine the type of the touch event, and then the processor set 808 according to the touch The type of event provides a corresponding visual output on the display panel 8041. Although in FIG. 8 , the touch panel 8031 and the display panel 8041 are used as two independent components to realize the input and input functions of the mobile phone, in some embodiments, the touch panel 8031 and the display panel 8041 can be integrated and Realize the input and output functions of the mobile phone.

The handset may also include at least one sensor 805, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 8041 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 8041 and/or when the mobile phone is moved to the ear. or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of mobile phone posture (such as horizontal and vertical screen switching, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; as for other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. repeat.

The audio circuit 806, the speaker 8061, and the microphone 8062 can provide an audio interface between the user and the mobile phone. The audio circuit 806 can transmit the electrical signal converted from the received audio data to the speaker 8061, and the speaker 8061 converts it into an audio signal for output; After being received, it is converted into audio data, and then the audio data is processed by the output processor set 808, and then sent to another mobile phone through the RF circuit 801, or the audio data is output to the memory 802 for further processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 807. It provides users with wireless broadband Internet access.

The processor 808 is the control center of the mobile phone. The processor 808 utilizes various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and/or modules stored in the memory 802, and calling the Data, perform various functions of the mobile phone and process data, so as to monitor the mobile phone as a whole. Optionally, the processor 808 may include one or more processing units; preferably, the processor 808 may integrate an application processor and a modem processor, wherein the application processor mainly processes operating systems, user interfaces, and application programs, etc. , the modem processor mainly handles wireless communications. It can be understood that the foregoing modem processor may not be integrated into the processor 808 .

The mobile phone also includes a power supply 809 (such as a battery) for supplying power to each component. Preferably, the power supply can be logically connected to the processor 808 through the power management system, so that functions such as charging, discharging, and power consumption management can be realized through the power management system.

Although not shown, the mobile phone may also include a camera, a Bluetooth module, etc., which will not be repeated here.

In the aforementioned embodiment shown in FIG. 1 or FIG. 3 , the method flow of each step can be realized based on the structure of the mobile phone.

In the aforementioned embodiments shown in FIG. 4 to FIG. 6 , the functions of each unit can be realized based on the structure of the mobile phone.

For example, the processor 808 can invoke a computer program stored in the memory 802 for performing the following operations:

Obtain the first voltage U ₁ and the first current I ₁ of the Universal Serial Bus USB port that the terminal device is charging;

Acquiring the second voltage U2 of the battery of the terminal device and the _second current _I2 flowing into the battery;

calculating a target charging efficiency according to the U ₁ , the I ₁ , the U ₂ and the I ₂ ;

It is determined according to the target charging efficiency whether the terminal device is abnormally heated during charging.

As an optional implementation, the calculation method of the target charging efficiency is:

Wherein, X is the target charging efficiency.

As an optional implementation manner, in terms of determining whether the terminal device is abnormally charged and heated according to the target charging efficiency, the processor 808 may call a computer program stored in the memory 802, specifically for performing the following operations:

Obtain the power value of the current battery;

calculating a target proportional relationship between the target charging efficiency and the electric quantity;

The target proportional relationship is compared with a preset proportional relationship, and if the difference between the target proportional relationship and the preset proportional relationship is greater than a first preset threshold, it is determined that the terminal device is abnormally heated during charging.

As an optional implementation manner, the processor 808 may invoke a computer program stored in the memory 802, and is also configured to perform the following operations:

Calculate the target resistance value of the battery according to the U2 and the _{I2 ;}

Obtain the power value of the current battery;

Obtaining a standard resistance value corresponding to the electric quantity value;

The target resistance value is compared with the standard resistance value, and if the difference between the target resistance value and the standard resistance value is greater than a second preset threshold, it is determined that the terminal device is abnormally heated during charging.

As an optional implementation manner, the processor 808 may invoke a computer program stored in the memory 802, and is also configured to perform the following operations:

When the terminal device is abnormally heated during charging, obtain the process running in the terminal device;

Determine the priority of the process, if the priority of the process is low, end the process, and if the priority of the process is high, reduce the processor frequency of the terminal device to run the process.

As an optional implementation manner, the processor 808 may invoke a computer program stored in the memory 802, and is also configured to perform the following operations:

When the terminal device is abnormally heated during charging, determine whether the terminal device is in a wake-up state;

If the terminal device is in the wake-up state, a prompt message is output to remind the user that the terminal device is abnormally heated during charging.

It can be seen that the terminal device described in Figure 8 can monitor the power loss of the terminal device during charging according to the power input from the USB to the terminal device and the charging power at the battery; since the power loss will mainly be converted into heat energy, by monitoring the power loss It can monitor in real time whether the terminal device is charging and heating abnormally.

An embodiment of the present invention also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables the computer to execute some or all of the steps of any method described in the above method embodiments , the computer includes a mobile terminal.

An embodiment of the present invention also provides a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to enable a computer to execute the method described in the above method embodiments. Some or all of the steps of any method. The computer program product may be a software installation package, and the computer includes a mobile terminal.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory. Several instructions are included to make a computer device (which may be a personal computer, server or network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The above-mentioned memory includes: various media capable of storing program codes such as USB flash drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, abbreviated: ROM), random access device (English: Random Access Memory, abbreviated: RAM), magnetic disk or optical disk, etc.

The embodiments of the present invention have been described in detail above, and specific examples have been used in this paper to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only used to help understand the method and core idea of the present invention; at the same time, for Those skilled in the art will have changes in the specific implementation and scope of application according to the idea of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (14)

1. A method for detecting abnormal heating during charging, comprising: Obtain the first voltage U ₁ and the first current I ₁ of the Universal Serial Bus USB port that the terminal device is charging; Acquiring the second voltage U2 of the battery of the terminal device and the _second current _I2 flowing into the battery; calculating a target charging efficiency according to the U ₁ , the I ₁ , the U ₂ and the I ₂ ; It is determined according to the target charging efficiency whether the terminal device is abnormally heated during charging. 2. The method according to claim 1, wherein the calculation method of the target charging efficiency is: <mrow><mi>X</mi><mo>=</mo><mfrac><mrow><msub><mi>U</mi><mn>2</mn></msub><msub><mi>I</mi><mn>2</mn></msub></mrow><mrow><msub><mi>U</mi><mn>1</mn></msub><msub><mi>I</mi><mn>1</mn></msub></mrow></mfrac></mrow> Wherein, X is the target charging efficiency. 3. The method according to claim 2, wherein the determining whether the terminal device is abnormally heated during charging according to the target charging efficiency comprises: Obtain the power value of the current battery; calculating a target proportional relationship between the target charging efficiency and the electric quantity; The target proportional relationship is compared with a preset proportional relationship, and if the difference between the target proportional relationship and the preset proportional relationship is greater than a first preset threshold, it is determined that the terminal device is abnormally heated during charging. 4. The method according to claim 1, wherein the method further comprises: Calculate the target resistance value of the battery according to the U2 and the _{I2 ;} Obtain the power value of the current battery; Acquiring a standard resistance value corresponding to the electric quantity value; The target resistance value is compared with the standard resistance value, and if the difference between the target resistance value and the standard resistance value is greater than a second preset threshold, it is determined that the terminal device is abnormally heated during charging. 5. The method according to any one of claims 1 to 4, characterized in that the method further comprises: When the terminal device is abnormally heated during charging, obtain the process running in the terminal device; Determine the priority of the process, if the priority of the process is low, end the process, and if the priority of the process is high, reduce the processor frequency of the terminal device to run the process. 6. The method according to any one of claims 1 to 4, wherein the method further comprises: When the terminal device is abnormally heated during charging, determine whether the terminal device is in a wake-up state; If the terminal device is in the wake-up state, a prompt message is output to remind the user that the terminal device is abnormally heated during charging. 7. A terminal device, characterized in that, comprising: The first obtaining unit is used to obtain the first voltage U ₁ and the first current I ₁ of the Universal Serial Bus USB port that the terminal device is charging; A second acquisition unit, configured to acquire a second voltage U2 of the battery of the terminal device and a _second current _I2 flowing into the battery; A first calculation unit, configured to calculate a target charging efficiency according to the U ₁ , the I ₁ , the U ₂ and the I ₂ ; The first determining unit is configured to determine whether the terminal device is abnormally heated during charging according to the target charging efficiency. 8. The terminal device according to claim 7, wherein the calculation method of the target charging efficiency is: <mrow><mi>X</mi><mo>=</mo><mfrac><mrow><msub><mi>U</mi><mn>2</mn></msub><msub><mi>I</mi><mn>2</mn></msub></mrow><mrow><msub><mi>U</mi><mn>1</mn></msub><msub><mi>I</mi><mn>1</mn></msub></mrow></mfrac></mrow> Wherein, X is the target charging efficiency. 9. The terminal device according to claim 8, wherein the first determining unit comprises: Obtaining a subunit, used to obtain the power value of the current battery; a calculation subunit, configured to calculate the target proportional relationship between the target charging efficiency and the electric quantity; A comparing subunit, configured to compare the target proportional relationship with a preset proportional relationship; A determining subunit, configured to determine that the terminal device is abnormally heated during charging if the difference between the target proportional relationship and the preset proportional relationship is greater than a first preset threshold. 10. The terminal device according to claim 7, further comprising: A _second calculation unit, configured to calculate the target resistance value of the battery according to the U2 and the _I2 ; a third acquiring unit, configured to acquire the current electric quantity value of the battery; A fourth acquisition unit, configured to acquire a standard resistance value corresponding to the electric quantity; a comparison unit, configured to compare the target resistance value with the standard resistance value; The second determination unit is configured to determine that the terminal device is abnormally heated during charging if the difference between the target resistance value and the standard resistance value is greater than a second preset threshold. 11. The terminal device according to any one of claims 7-10, wherein the terminal device further comprises: The fifth obtaining unit is used to obtain the running process in the terminal device when the terminal device is abnormally heated during charging; a third determining unit, configured to determine the priority of the process; The control unit is configured to end the process if the priority of the process is low, and reduce the processor frequency of the terminal device to run the process if the priority of the process is high. 12. The terminal device according to any one of claims 7-10, wherein the terminal device further comprises: The fourth determining unit is configured to determine whether the terminal device is in a wake-up state when the terminal device is abnormally heated during charging; The notification unit is configured to, if the terminal device is in a wake-up state, output a prompt message to remind the user that the terminal device is abnormally heated during charging. 13. A terminal device, characterized in that it includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the Executed by a processor, the program includes instructions for performing the steps in any one of the methods of claims 1 to 6. 14. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the method according to any one of claims 1 to 6, the Computers include terminal devices.