Charging management method, system and device based on temperature correction and storage medium

Abstract

The invention discloses a charging management method, system and device based on temperature correction and a storage medium, and relates to the technical field of charging management, and the method comprises the steps: obtaining a voltameter zero offset value according to an onboard temperature sensor and a voltameter when an intelligent wearable device supplies power for the first time; correcting the voltameter according to the zero offset value of the voltameter; based on the corrected voltameter, detecting the battery temperature in the charging process of the intelligent wearable device; and controlling the charging process according to the detected change of the battery temperature and a preset battery charging strategy. Through the above mode, during charging management based on temperature correction, the voltameter is corrected, the accurate temperature of the battery is obtained, and the charging process is accurately controlled through accurate detection of the temperature of the battery and the preset battery charging strategy, so that the battery charging efficiency is improved in the charging management process based on temperature correction, and the charging efficiency of the battery is improved. The battery overheating risk is prevented, and the charging safety and the user experience are improved.

Description

Technical Field

[0001] The present application relates to the field of charging management, and in particular to a charging management method, system, device and storage medium based on temperature correction. Background Art

[0002] The battery charging process of smart wearable products, such as smart watches, is an important part of product use. It not only affects the user experience, but also may pose a safety hazard of thermal runaway.

[0003] During the charging process, mainstream smart wearable products primarily use fuel gauges or charge management chips to detect temperature and adjust charging strategies accordingly. However, charge management chips can only identify battery temperature ranges but cannot provide precise temperature values. Dedicated fuel gauge chips exhibit significant systematic temperature measurement deviations. Furthermore, existing fuel gauge calibration solutions require specialized equipment and manual operation or rely on large amounts of training data. This lack of temperature detection accuracy leads to inaccurate charging strategy execution, resulting in reduced charging efficiency, abnormal battery temperature rises that accelerate battery life degradation, and an increased risk of thermal runaway.

[0004] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of this application is to provide a charging management method, system, device and storage medium based on temperature correction, aiming to solve the technical problems in the existing charging management based on temperature correction, such as large battery temperature detection error, inaccurate charging strategy execution leading to low charging efficiency, abnormal battery temperature rise accelerating life decay and increased risk of thermal runaway.

[0006] To achieve the above objectives, the present application proposes a charging management method based on temperature correction, which is applied to smart wearable devices. The method includes:

[0007] When the smart wearable device is powered on for the first time, obtaining a zero bias value of the fuel gauge according to the onboard temperature sensor and the fuel gauge;

[0008] calibrating the fuel gauge according to the fuel gauge zero offset value;

[0009] Detecting the battery temperature of the smart wearable device during charging based on the calibrated fuel gauge;

[0010] The charging process is controlled according to the detected battery temperature change and a preset battery charging strategy.

[0011] In one embodiment, when the smart wearable device is powered on for the first time, the step of obtaining a zero bias value of the fuel gauge according to the onboard temperature sensor and the fuel gauge includes:

[0012] Synchronously read the temperature values ​​of the onboard temperature sensor and fuel gauge;

[0013] Calculating a zero bias value of the fuel gauge according to the temperature values ​​of the onboard temperature sensor and the fuel gauge;

[0014] The fuel gauge zero bias value is written into a non-volatile memory.

[0015] In one embodiment, the step of calibrating the fuel meter according to the fuel meter zero offset value includes:

[0016] When detecting that the smart wearable device is powered on, obtaining the zero bias value of the fuel gauge from a non-volatile memory;

[0017] Get the battery temperature collected by the fuel gauge;

[0018] The fuel gauge is calibrated based on the battery temperature collected by the fuel gauge and the fuel gauge zero offset value.

[0019] In one embodiment, the step of controlling the charging process according to the detected battery temperature change and a preset battery charging strategy includes:

[0020] According to the preset battery charging strategy, determine the temperature range of the current battery temperature;

[0021] According to the change of the battery temperature, the state of the wireless receiver and the charging current are adjusted.

[0022] In one embodiment, the preset battery charging strategy includes:

[0023] When the battery temperature is in the first temperature range, the wireless receiver is enabled to receive energy wirelessly transmitted by the charging base, and the charging current is adjusted to be less than the standard charging current;

[0024] When the battery temperature is in the second temperature range, the wireless receiver is enabled to receive energy wirelessly transmitted by the charging base, and the charging current is adjusted to a standard charging current;

[0025] When the battery temperature is within a third temperature range, the wireless receiver is enabled to receive energy wirelessly transmitted by the charging base, and the charging current is cut off;

[0026] When the battery temperature is within a fourth temperature range, disabling the wireless receiver and cutting off the charging current;

[0027] The temperatures corresponding to the first temperature interval, the second temperature interval, the third temperature interval, and the fourth temperature interval increase in sequence.

[0028] In one embodiment, the step of controlling the charging process according to the detected battery temperature change and a preset battery charging strategy includes:

[0029] When the battery temperature changes across multiple temperature intervals, the battery charging strategy is adjusted after determining that the difference between the battery temperature and the corresponding endpoint value of the temperature interval exceeds a preset temperature return difference value.

[0030] In one embodiment, the step of detecting the battery temperature of the smart wearable device during charging based on the calibrated fuel gauge includes:

[0031] According to different temperature ranges, different preset time intervals for obtaining the battery temperature are set; wherein the temperature value and the preset time interval are negatively correlated;

[0032] The battery temperature is acquired at corresponding preset time intervals according to the temperature range in which the current battery temperature is located.

[0033] In addition, to achieve the above objectives, the present application also proposes a charging management system based on temperature correction, the charging management system based on temperature correction comprising:

[0034] A fuel gauge, used to detect the battery temperature of the smart wearable device during charging;

[0035] An onboard temperature sensor, used to read a temperature value used to calculate a zero bias value of the fuel gauge when the smart wearable device is powered on for the first time;

[0036] A wireless receiver is used to receive energy wirelessly transmitted by the charging base and provide power for charging the battery;

[0037] A charging management chip, used to adjust the working state and charging current of the wireless receiver;

[0038] a microprocessor configured to obtain, when the smart wearable device is powered on for the first time, a zero bias value of the fuel gauge based on the onboard temperature sensor and the fuel gauge, calibrate the fuel gauge based on the zero bias value of the fuel gauge, and control the charging process based on a detected battery temperature change and a preset battery charging strategy;

[0039] A storage module is used to store the zero bias value of the fuel gauge.

[0040] In addition, to achieve the above-mentioned purpose, the present application also proposes a charging management device based on temperature correction, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is configured to implement the steps of the charging management method based on temperature correction as described above.

[0041] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the temperature correction-based charging management method as described above are implemented.

[0042] One or more technical solutions proposed in this application have at least the following technical effects: when the smart wearable device is powered on for the first time, the zero bias value of the fuel gauge is obtained based on the onboard temperature sensor and the fuel gauge; the fuel gauge is calibrated based on the zero bias value of the fuel gauge; the battery temperature during the charging process of the smart wearable device is detected based on the calibrated fuel gauge; and the charging process is controlled based on the detected battery temperature change and the preset battery charging strategy. Through the above method, during the charging management based on temperature correction, the fuel gauge is calibrated to obtain the precise battery temperature. Through accurate detection of the battery temperature and the preset battery charging strategy, the charging process is accurately controlled, thereby achieving improved battery charging efficiency, preventing the risk of battery overheating, and improving charging safety and user experience during the charging management based on temperature correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0045] Figure 1 A flow chart illustrating an embodiment of a charging management method based on temperature correction according to the present application;

[0046] Figure 2 This is a schematic diagram of the module structure of a charging management system based on temperature correction according to an embodiment of the present application;

[0047] Figure 3 Schematic diagram of the device structure of the hardware operating environment involved in the temperature correction-based charging management method in the embodiment of the present application.

[0048] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, mobile phone, etc., or an electronic device capable of implementing the above functions, a temperature-correction-based charging management device, etc. The following uses a temperature-correction-based charging management device as an example to illustrate this embodiment and the following embodiments.

[0050] Based on this, the embodiment of the present application provides a charging management method based on temperature correction, which is applied to smart wearable devices (such as smart watches). Figure 1 , Figure 1 This is a flow chart of an embodiment of a charging management method based on temperature correction in this application.

[0051] In this embodiment, the charging management method based on temperature correction includes steps S10 to S40:

[0052] Step S10: When the smart wearable device is powered on for the first time, a zero bias value of the electric meter is obtained according to the onboard temperature sensor and the electric meter.

[0053] Understandably, during the use of smart wearable devices, the battery temperature can differ significantly from the ambient temperature due to heat generation. When powered on for the first time, the battery is in its initial operating state and its temperature is close to the ambient temperature, making it suitable for fuel gauge calibration.

[0054] It's important to note that onboard temperature sensors are typically used as high-precision ambient temperature measurement devices. A typical onboard temperature sensor has a zero bias controlled within ±0.5°C, with measurement accuracy within ±0.1°C. In contrast, fuel gauges have significant temperature measurement zero bias, and this bias varies significantly between individual fuel gauges. For example, the RT9426 fuel gauge has a zero bias of ±3°C. The zero bias of the onboard temperature sensor is smaller than that of the fuel gauge, so it can be used to calibrate the fuel gauge. Calibrating the fuel gauge not only reduces the zero bias and addresses charging strategy failures caused by individual differences, but also enables hardware resource reuse, effectively reducing hardware costs.

[0055] Furthermore, step S10 includes: synchronously reading temperature values ​​of an onboard temperature sensor and a power meter; calculating a zero bias value of the power meter according to the temperature values ​​of the onboard temperature sensor and the power meter; and writing the zero bias value of the power meter into a non-volatile memory.

[0056] It should be noted that one feasible method for calculating the zero bias value of the fuel gauge is to collect the temperature values ​​of the onboard temperature sensor and the fuel gauge when the smart wearable device is powered on for the first time, calculate the difference between the two temperature values, mark the difference as the zero bias value of the fuel gauge, and write it into the non-volatile memory.

[0057] It is understood that non-volatile memory refers to a type of storage device that can retain data after power failure. There are many types of non-volatile memory, including but not limited to Flash Memory, EEPROM and other storage devices.

[0058] Step S20: calibrating the fuel meter according to the fuel meter zero offset value.

[0059] It is understandable that a typical method for calibrating the fuel meter is to apply the stored fuel meter zero bias value to perform real-time compensation correction on the battery temperature collected by the fuel meter during the battery charging process, thereby obtaining the accurate battery temperature after reducing the zero bias error.

[0060] Furthermore, step S20 includes: when detecting that the smart wearable device is turned on, obtaining the zero bias value of the fuel meter from a non-volatile memory; obtaining the battery temperature collected by the fuel meter; and calibrating the fuel meter based on the battery temperature collected by the fuel meter and the zero bias value of the fuel meter.

[0061] It can be understood that the zero offset value of the calibrated fuel gauge is reduced to within the zero offset value of the onboard temperature sensor, and is suitable for accurate measurement of the battery temperature.

[0062] Step S30: detecting the battery temperature of the smart wearable device during charging based on the calibrated fuel gauge.

[0063] It should be noted that a thermistor is usually integrated inside the battery. The thermistor is connected in series with an external reference resistor through a dedicated wire and then connected to the fuel meter. The fuel meter detects the battery temperature by detecting the voltage divider value of the voltage divider network formed by the thermistor and the external reference resistor.

[0064] Furthermore, step S30 includes: setting different preset time intervals for obtaining the battery temperature according to different temperature ranges; wherein the temperature value is negatively correlated with the preset time interval; and obtaining the battery temperature according to the corresponding preset time interval according to the temperature range in which the current battery temperature is located.

[0065] It is understood that the different preset time intervals for acquiring battery temperature are empirical values ​​derived from long-term operation and maintenance experience and historical data analysis and optimization. The preset time intervals are negatively correlated with the battery temperature value, that is, the higher the battery temperature value, the shorter the preset time interval. The specific value can be set according to needs and is not limited by this application. In addition, this negative correlation ensures more frequent sampling when the battery temperature rises, thereby quickly responding to temperature changes and adjusting the charging strategy in a timely manner, effectively reducing the risk of battery overheating and thermal runaway.

[0066] Step S40 , controlling the charging process according to the detected battery temperature change and a preset battery charging strategy.

[0067] It should be noted that by setting a set of temperature ranges and dynamically adjusting different battery charging strategies according to the temperature range in which the battery temperature is located, refined control of the charging process can be achieved.

[0068] Furthermore, step S40 includes: determining the temperature range of the current battery temperature according to a preset battery charging strategy; and adjusting the state of the wireless receiver and the charging current according to the change of the battery temperature.

[0069] It should be noted that the wireless receiver is used to receive the energy wirelessly transmitted by the charging stand, and adjusting the charging current can directly control the battery charging power. Adjusting the state of the wireless receiver and the charging current can control the battery charging power and thus effectively regulate the battery temperature.

[0070] Further, step S40 includes: when the battery temperature is in the first temperature range, enabling the wireless receiver to receive the energy wirelessly transmitted by the charging stand, and adjusting the charging current to less than the standard charging current; when the battery temperature is in the second temperature range, enabling the wireless receiver to receive the energy wirelessly transmitted by the charging stand, and adjusting the charging current to the standard charging current; when the battery temperature is in the third temperature range, enabling the wireless receiver to receive the energy wirelessly transmitted by the charging stand, and cutting off the charging current; when the battery temperature is in the fourth temperature range, disabling the wireless receiver and cutting off the charging current; wherein the temperatures corresponding to the first temperature range, the second temperature range, the third temperature range, and the fourth temperature range increase sequentially.

[0071] It's understandable that when the battery temperature is in the first temperature range, the battery is relatively low. The low temperature reduces the activity of the battery's internal chemical compounds, slowing the diffusion of lithium ions in the electrolyte. Excessive charging current at this time can cause lithium ions to embed into the negative electrode material, leading to precipitation and formation of lithium dendrites. This can pierce the battery separator and cause a short circuit, making high-current charging unsuitable. The specific charge current below the standard charge current can be controlled based on the battery temperature, such as setting the charge current to one-third or one-half of the standard charge current. When the battery temperature is in the second temperature range, the battery is in optimal charging conditions and can be charged using the standard charge current, typically 1C. When the battery temperature is in the third temperature range, the battery begins to overheat. The wireless receiver continues to receive energy from the charging station, but the charging current is stopped to prevent further temperature increases. When the battery temperature is in the fourth temperature range, the battery temperature is high, and the risk of overheating and thermal runaway is already present. Disabling the wireless receiver to cut off energy reception and cool the battery temperature.

[0072] For example, a method for setting the endpoint values ​​of the temperature intervals may be that the first temperature interval is a battery temperature less than 5°C, the second temperature interval is a battery temperature between 5°C and 45°C, the third temperature interval is a battery temperature between 45°C and 60°C, and the fourth temperature interval is a battery temperature greater than 60°C.

[0073] Furthermore, step S40 includes: when the battery temperature changes across multiple temperature intervals, determining that the difference between the battery temperature and the corresponding endpoint value of the temperature interval exceeds a preset temperature return difference value, and then adjusting the battery charging strategy.

[0074] For example, the third temperature range is set to a battery temperature of 45°C to 60°C, and the fourth temperature range is set to a battery temperature greater than 60°C. The preset temperature differential is 2°C. During battery charging, if the battery temperature rises above 60°C, the charging strategy is adjusted to disable the wireless receiver, allowing the battery temperature to drop. When the battery temperature drops to 58°C, the charging strategy is adjusted again to enable the wireless receiver.

[0075] It is understood that setting the temperature hysteresis value can effectively suppress the frequent switching of charging strategies near the end points of the temperature range, thereby improving the operational stability of the system. In addition, the temperature hysteresis value is an empirical value derived from long-term operation and maintenance experience and historical data analysis and optimization. The specific value can be set according to needs and is not limited by this application.

[0076] In this embodiment, when the smart wearable device is powered on for the first time, the fuel gauge zero offset value is obtained based on the onboard temperature sensor and fuel gauge; the fuel gauge is calibrated based on the fuel gauge zero offset value; the battery temperature during the charging process of the smart wearable device is detected based on the calibrated fuel gauge; and the charging process is controlled based on the detected battery temperature change and the preset battery charging strategy. Through the above method, during the charging management based on temperature correction, the fuel gauge is calibrated to obtain the precise battery temperature. Through accurate detection of the battery temperature and the preset battery charging strategy, the charging process is precisely controlled, thereby achieving improved battery charging efficiency, preventing the risk of battery overheating, and improving charging safety and user experience during the charging management based on temperature correction.

[0077] This application also provides a charging management system based on temperature correction, please refer to Figure 2 , the temperature correction-based charging management system includes:

[0078] A fuel gauge, used to detect the battery temperature of the smart wearable device during charging;

[0079] An onboard temperature sensor is used to collect a temperature value when the smart wearable device is powered on for the first time, so as to calculate a zero bias value of the fuel gauge;

[0080] The wireless receiver is used to receive the energy transmitted wirelessly by the charging station and convert it into battery charging power. A typical battery charging power supply has a voltage of 5V.

[0081] A charging management chip, configured to dynamically adjust the operating state, charging current, and charging voltage of the wireless receiver according to the battery temperature during the charging process;

[0082] a microprocessor configured to obtain, when the smart wearable device is powered on for the first time, a zero bias value of the fuel gauge based on the onboard temperature sensor and the fuel gauge, calibrate the fuel gauge based on the zero bias value of the fuel gauge, and control the charging process based on a detected battery temperature change and a preset battery charging strategy;

[0083] A storage module is used to store the zero bias value of the electricity meter, and can retain the zero bias value of the electricity meter without losing it after power failure. The storage module can be a non-volatile memory.

[0084] Furthermore, the temperature-corrected charging management system may further include a battery and a reference resistor, wherein the reference resistor is used to form a voltage divider network with a thermistor integrated inside the battery.

[0085] In this embodiment, when the smart wearable device is powered on for the first time, the fuel gauge zero offset value is obtained based on the onboard temperature sensor and fuel gauge; the fuel gauge is calibrated based on the fuel gauge zero offset value; the battery temperature during the charging process of the smart wearable device is detected based on the calibrated fuel gauge; and the charging process is controlled based on the detected battery temperature change and the preset battery charging strategy. Through the above method, during the charging management based on temperature correction, the fuel gauge is calibrated to obtain the precise battery temperature. Through accurate detection of the battery temperature and the preset battery charging strategy, the charging process is precisely controlled, thereby achieving improved battery charging efficiency, preventing the risk of battery overheating, and improving charging safety and user experience during the charging management based on temperature correction.

[0086] The temperature-correction-based charging management system provided in this application, which employs the temperature-correction-based charging management method of the aforementioned embodiment, can address the technical issues inherent in existing temperature-correction-based charging management, such as large battery temperature detection errors, inaccurate charging strategy execution leading to low charging efficiency, abnormal battery temperature rises that accelerate battery life degradation, and increased risk of thermal runaway. Compared to the prior art, the temperature-correction-based charging management system provided in this application has the same beneficial effects as the temperature-correction-based charging management method of the aforementioned embodiment, and the other technical features of the temperature-correction-based charging management system are the same as those disclosed in the aforementioned embodiment method, and are not further elaborated here.

[0087] The present application provides a charging management device based on temperature correction, and the charging management device based on temperature correction includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the charging management method based on temperature correction in the above-mentioned embodiment.

[0088] Reference below Figure 3 , which shows a schematic diagram of the structure of a temperature-corrected charging management device suitable for implementing an embodiment of the present application. The temperature-corrected charging management device in the embodiment of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 3The temperature correction-based charging management device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0089] like Figure 3 As shown, the temperature-corrected charge management device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a ROM (Read Only Memory) 1002 or a program loaded from a storage device 1003 into a RAM (Random Access Memory) 1004. Various programs and data required for the operation of the temperature-corrected charge management device are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the temperature-corrected charge management device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a temperature-corrected charge management device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have instead.

[0090] In particular, according to the embodiments disclosed herein, the processes described above with reference to the flowcharts can be implemented as computer software programs. The computer programs contain program code for executing the methods shown in the flowcharts. In such embodiments, the computer programs can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer programs are executed by processing device 1001, the above-described functions defined in the methods of the embodiments disclosed herein are performed.

[0091] The temperature-correction-based charging management device provided in this application adopts the temperature-correction-based charging management method of the above-mentioned embodiment, which can solve the technical problems in existing temperature-correction-based charging management, such as large battery temperature detection errors, low charging efficiency caused by inaccurate charging strategy execution, abnormal battery temperature rise accelerating life decay, and increased risk of thermal runaway. Compared with the existing technology, the beneficial effects of the temperature-correction-based charging management device provided in this application are the same as the beneficial effects of the temperature-correction-based charging management method provided in the above-mentioned embodiment, and the other technical features of the temperature-correction-based charging management device are the same as the features disclosed in the previous embodiment method, and are not further described here.

[0092] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0094] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, a computer program) stored thereon, wherein the computer-readable program instructions are used to execute the temperature correction-based charging management method in the above-mentioned embodiment.

[0095] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0096] The computer-readable storage medium may be included in the temperature-correction-based charging management device; or may exist independently without being incorporated into the temperature-correction-based charging management device.

[0097] Computer program code for performing the operations of the present application may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0098] The flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems and methods according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment, or a part of code, and the module, program segment, or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0099] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0100] The readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., a computer program) for executing the above-mentioned temperature-corrected charging management method. This computer-readable storage medium can solve the technical problems in existing temperature-corrected charging management, such as large battery temperature detection errors, low charging efficiency caused by inaccurate charging strategy execution, abnormal battery temperature rise that accelerates life decay, and increased risk of thermal runaway. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the temperature-corrected charging management method provided in the above-mentioned embodiment, and will not be elaborated here.

[0101] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A charging management method based on temperature correction, characterized in that: Applied to a smart wearable device, the method includes: When the smart wearable device is powered on for the first time, obtaining a zero bias value of the fuel gauge according to the onboard temperature sensor and the fuel gauge; calibrating the fuel gauge according to the fuel gauge zero offset value; Detecting the battery temperature of the smart wearable device during charging based on the calibrated fuel gauge; The charging process is controlled according to the detected battery temperature change and a preset battery charging strategy.

2. The method according to claim 1, wherein The step of obtaining a zero bias value of the fuel gauge according to the onboard temperature sensor and the fuel gauge when the smart wearable device is powered on for the first time includes: Synchronously read the temperature values ​​of the onboard temperature sensor and fuel gauge; Calculating a zero bias value of the fuel gauge according to the temperature values ​​of the onboard temperature sensor and the fuel gauge; The fuel gauge zero bias value is written into a non-volatile memory.

3. The method according to claim 1, wherein The step of calibrating the fuel meter according to the fuel meter zero offset value includes: When detecting that the smart wearable device is powered on, obtaining the zero bias value of the fuel gauge from a non-volatile memory; Get the battery temperature collected by the fuel gauge; The fuel gauge is calibrated based on the battery temperature collected by the fuel gauge and the fuel gauge zero offset value.

4. The method according to claim 1, wherein The step of controlling the charging process according to the detected battery temperature change and a preset battery charging strategy includes: According to the preset battery charging strategy, determine the temperature range of the current battery temperature; According to the change of the battery temperature, the state of the wireless receiver and the charging current are adjusted.

5. The method according to claim 4, wherein The preset battery charging strategy includes: When the battery temperature is in the first temperature range, the wireless receiver is enabled to receive energy wirelessly transmitted by the charging base, and the charging current is adjusted to be less than the standard charging current; When the battery temperature is in the second temperature range, the wireless receiver is enabled to receive energy wirelessly transmitted by the charging base, and the charging current is adjusted to a standard charging current; When the battery temperature is within a third temperature range, the wireless receiver is enabled to receive energy wirelessly transmitted by the charging base, and the charging current is cut off; When the battery temperature is within a fourth temperature range, disabling the wireless receiver and cutting off the charging current; The temperatures corresponding to the first temperature interval, the second temperature interval, the third temperature interval, and the fourth temperature interval increase in sequence.

6. The method according to claim 4, wherein The step of controlling the charging process according to the detected battery temperature change and a preset battery charging strategy includes: When the battery temperature changes across multiple temperature intervals, the battery charging strategy is adjusted after determining that the difference between the battery temperature and the corresponding endpoint value of the temperature interval exceeds a preset temperature return difference value.

7. The method according to claim 4, wherein The step of detecting the battery temperature during the charging process of the smart wearable device based on the calibrated fuel gauge includes: According to different temperature ranges, different preset time intervals for obtaining the battery temperature are set; wherein the temperature value and the preset time interval are negatively correlated; The battery temperature is acquired at corresponding preset time intervals according to the temperature range in which the current battery temperature is located.

8. A charging management system based on temperature correction, operating based on the charging management method based on temperature correction according to any one of claims 1 to 7, characterized in that: The temperature-corrected charging management system includes: A fuel gauge, used to detect the battery temperature of the smart wearable device during charging; An onboard temperature sensor, used to read a temperature value used to calculate a zero bias value of the fuel gauge when the smart wearable device is powered on for the first time; A wireless receiver is used to receive energy wirelessly transmitted by the charging base and provide power for charging the battery; A charging management chip, used to adjust the working state and charging current of the wireless receiver; a microprocessor configured to obtain, when the smart wearable device is powered on for the first time, a zero bias value of the fuel gauge based on the onboard temperature sensor and the fuel gauge, calibrate the fuel gauge based on the zero bias value of the fuel gauge, and control the charging process based on a detected battery temperature change and a preset battery charging strategy; A storage module is used to store the zero bias value of the fuel gauge.

9. A charging management device based on temperature correction, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the temperature correction-based charging management method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the temperature-correction-based charging management method according to any one of claims 1 to 7 are implemented.

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