CN110138037B - Method and device for reminding user of charging, wearable device and storage medium - Google Patents

Abstract

The embodiment of the application discloses a method and a device for reminding a user of charging, wearable equipment and a storage medium. The method comprises the following steps: receiving electricity consumption parameters corresponding to the use requirement of a terminal, wherein the electricity consumption parameters comprise starting time, use duration and a target electricity consumption mode; calculating the lowest power consumption for implementing the terminal use requirement according to the use duration and the target power consumption mode; calculating a target charging time length required from the current electric quantity to the lowest power consumption; calculating the residual duration from the current time to the starting time; and when the difference between the residual time length and the target charging time length is smaller than a preset reserved time length, carrying out charging reminding. According to the embodiment, the lowest power consumption for implementing the use requirement is determined according to the use duration corresponding to the use requirement of the terminal and the target power consumption mode, the target charging duration is determined, and the charging prompt is carried out before the remaining duration is enough to be charged to meet the use requirement, so that the electric quantity is ensured to meet the use requirement of a user, and the user experience is optimized.

Description

A method, device, wearable device and storage medium for reminding users to charge

Technical field

Embodiments of the present application relate to the field of charging technology, and in particular, to a method, device, wearable device and storage medium for reminding a user to charge.

Background technique

Wearable devices such as smart watches are becoming more and more popular in the market. Currently, most smart watches on the market have batteries in the 200-600mAH range.

The power consumption of watches is increasing, so most smart watches with many functions, such as phone watches with video calling functions, usually do not have a long standby time, which will cause the problem of frequent charging of the watch.

Generally, when the watch needs to be used for a period of time, the user cannot know how much power needs to be reserved. In the existing charging reminder solution, the reminder is usually only issued when the power drops to a certain level or when the power is full, but this method cannot be accurate. Meet the user's actual power usage needs, which will affect the user experience.

Contents of the invention

Embodiments of the present application provide a method, device, wearable device, and storage medium for reminding users to charge, so as to promptly remind users to charge and optimize user experience.

In a first aspect, embodiments of the present application provide a method for reminding users to charge, including:

Receive power consumption parameters corresponding to the terminal usage requirements, where the power consumption parameters include start time, usage duration and target power consumption mode;

Calculate the minimum power consumption required to implement the terminal usage requirements based on the usage duration and target power consumption mode;

Calculate the target charging time required from the current power to the minimum power consumption;

Calculate the remaining time from the current time to the start time;

When the difference between the remaining time and the target charging time is less than the preset reserved time, a charging reminder is provided.

Further, the method further includes: when the charging state continues to the start time, issuing a usage reminder corresponding to the terminal usage requirement.

Further, the method also includes:

After confirming that it has entered the charging state, obtain the current battery capacity;

Calculate the available time according to the current power, current power consumption mode and target power consumption mode;

Display the available time.

Further, the method also includes:

After confirming that it has entered the charging state, the target charging time is displayed.

Further, the method further includes: after issuing the usage reminder, switching the current power consumption mode to the target power consumption mode.

In the second aspect, embodiments of the present application provide a device for reminding users to charge, including a demand acquisition module, a minimum power consumption acquisition module, a target duration determination module, a remaining duration determination module, an analysis module and a reminder module, wherein:

The demand acquisition module is used to receive the power consumption parameters corresponding to the terminal usage requirements. The power consumption parameters include start time, usage duration and target power consumption mode;

The minimum power consumption acquisition module is used to calculate the minimum power consumption to implement the terminal usage requirements according to the usage duration and the target power consumption mode;

The target duration determination module is used to calculate the target charging duration required from the current power to the minimum power consumption;

The remaining duration determination module is used to calculate the remaining duration from the current time to the start time;

An analysis module configured to issue a charging reminder instruction to the reminder module when the difference between the remaining duration and the target charging duration is less than a preset reserved duration;

The reminder module is configured to provide a charging reminder in response to the charging reminder instruction.

Further, the device for reminding the user to charge also includes a timing module;

The timing module is configured to issue a usage reminder instruction corresponding to the terminal usage requirements to the reminder module when the charging state continues to the start time;

The reminder module issues a usage reminder in response to the usage reminder instruction.

Further, the device for reminding the user to charge also includes a current power acquisition module, an available time acquisition module and a display module, wherein:

The current power acquisition module is used to obtain the current power after confirming that it has entered the charging state;

The available duration acquisition module calculates the available duration based on the current power, current power consumption mode and target power consumption mode;

A display module is used to display the available duration.

In a third aspect, embodiments of the present application provide a wearable device, including: a display screen, a memory, and one or more processors;

The memory is used to store one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method of reminding the user to charge as described in the first aspect.

In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions that, when executed by a computer processor, are used to perform the method of reminding a user to charge as described in the first aspect. .

The embodiment of this application determines the minimum power consumption to implement the usage requirements according to the usage time and target power consumption mode corresponding to the terminal usage requirements, and determines the target charging time. At the same time, the target charging time is displayed to facilitate the user to understand the charging process, and A charging reminder is provided before the remaining time is enough to charge to meet the usage needs, ensuring that the power meets the user's usage needs, optimizing the user experience, and reminding the user at the start time to remind the user to perform relevant activities in a timely manner.

Description of the drawings

Figure 1 is a flow chart of a method for reminding a user to charge according to an embodiment of the present application;

Figure 2 is a schematic flowchart of another method for reminding the user to charge according to an embodiment of the present application;

Figure 3 is a schematic structural diagram of a device for reminding the user to charge according to an embodiment of the present application;

Figure 4 is a schematic structural diagram of a wearable device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, specific embodiments of the present application will be described in further detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for convenience of description, only part but not all of the content related to the present application is shown in the drawings. Before discussing example embodiments in more detail, it should be mentioned that some example embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe various operations (or steps) as a sequential process, many of the operations may be performed in parallel, concurrently, or simultaneously. Additionally, the order of operations can be rearranged. The process may be terminated when its operation is completed, but may also have additional steps not included in the figures. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

Figure 1 shows a flow chart of a method for reminding the user to charge provided by an embodiment of the present application. The method provided by this embodiment for reminding the user to charge can be executed by a device that reminds the user to charge. The device that reminds the user to charge can be implemented in hardware and/or software and integrated into wearable devices. Among them, the wearable device is a smart watch.

Specifically, the wearable device has a network communication function, which can perform data communication with other wearable devices, mobile phones, servers and other devices through the built-in communication device. Wherein, the communication device includes a wired communication device and/or a wireless communication device.

The following describes a method for a wearable device to remind the user to charge as an example. Referring to Figure 1, the method of reminding the user to charge specifically includes:

S101: Receive power consumption parameters corresponding to terminal usage requirements. The power consumption parameters include start time, usage duration and target power consumption mode.

For example, when there is a demand for use of a terminal such as a wearable device in a certain period of time, select the function selection button on the wearable device corresponding to the terminal usage demand to input the power consumption parameters, and select the power consumption parameter on the wearable device. A power consumption parameter setting interface is displayed on the touch screen, and the wearable device receives settings for power parameters such as start time, usage duration, and target power consumption mode in response to operations on the display screen. In addition, the function selection button of the wearable device corresponding to the terminal usage needs can also be triggered on the mobile phone, server and other devices associated with it, and receive the start time, usage time and target consumption input in the mobile phone, server and other devices. Power consumption parameters such as power mode.

Generally, different power consumption modes of wearable devices are set according to specific needs. Different power consumption models correspond to different performance modes of the device, and their power consumption in the same unit of time corresponds to different values. In this embodiment, three power consumption modes are taken as an example, namely high power consumption mode, medium power consumption mode and low power consumption mode. The corresponding working performance is from high to low. In this embodiment, the target power consumption mode is One of the different power consumption modes.

S102: Calculate the minimum power consumption to implement the terminal usage requirements according to the usage duration and target power consumption mode.

Specifically, the wearable device records and saves the power consumption per unit time in different power consumption modes. Its initial power consumption per unit time in different power consumption modes can be uniformly confirmed by the manufacturer based on experimental data during production testing, and also The wearable device can be recorded and saved when testing different power consumption modes during factory testing. During the use of wearable devices, the usage time and power consumption of each different power consumption mode are recorded, and the power consumption per unit time is corrected to reduce the damage per unit time due to battery aging during long-term use. There are changes in power consumption.

Further, the minimum power consumption is calculated as the product of the power consumption per unit time corresponding to the target power consumption mode and the usage time. After the wearable device receives the settings of the usage time and target power consumption mode, it retrieves the corresponding power consumption per unit time according to the target power consumption mode to facilitate the calculation of the minimum power consumption.

S103: Calculate the target charging time required from the current power to the minimum power consumption.

Specifically, the required target charging time can be calculated based on the charging efficiency of the wearable device, current power and minimum power consumption. The charging efficiency of the wearable device can be calculated based on the charging voltage and current. According to the minimum power consumption and The difference in current power can be used to calculate the amount of power that needs to be charged, and then the target charging time can be obtained based on the quotient of the amount of power that needs to be charged and the charging efficiency.

Furthermore, the current power of the wearable device is a value that is constantly changing, and its corresponding target charging time is also constantly changing with the use or charging of the wearable device. After receiving the settings of the power consumption parameters, the corresponding target charging time is changed. The current power of the wearable device is periodically collected at preset time intervals, and the target charging time is recalculated, thereby continuously updating the target charging time.

S104: Calculate the remaining time from the current time to the start time.

S105: When the difference between the remaining time and the target charging time is less than the preset reserved time, perform a charging reminder.

Specifically, each time the current power is collected and the target charging time is recalculated, the remaining time is calculated based on the current time and the start time, and then the difference between the remaining time and the target charging time is calculated, and the difference is calculated with the reserved time. When the difference between the remaining time and the target charging time is greater than the reserved time, it is considered that there is still enough margin between the current time and the time required to charge, and no charging reminder is needed for the time being; when the remaining time is different from the target charging time, When the difference in duration is less than the reserved duration, it is considered that the wearable device should be charged in time at the current time to meet the terminal usage needs, and a charging reminder is issued.

Among them, the reminder methods for battery reaching the standard include pop-up reminders, sound reminders and vibration reminders. The specific reminder methods can be selected or combined according to usage habits.

The preset reservation time can be set by the terminal or the backend server, and the reservation time can also be set when setting the power consumption parameters.

As mentioned above, according to the usage duration and target power consumption mode corresponding to the terminal usage requirements, the minimum power consumption for implementing the usage requirements is determined, and the target charging duration is determined, and a charging reminder is issued before the remaining time is enough to charge to meet the usage requirements to ensure that the power is met. User needs and optimize user experience.

Based on the above embodiment, FIG. 2 shows a schematic flowchart of another method for reminding the user to charge according to the embodiment of the present application. This method of reminding the user to charge is a specific embodiment of the above method of reminding the user to charge. Referring to Figure 2, the method of reminding the user to charge includes:

S201: Receive power consumption parameters corresponding to terminal usage requirements. The power consumption parameters include start time, usage duration and target power consumption mode.

For example, when there is a demand for use of a terminal such as a wearable device in a certain period of time, select the function selection button on the wearable device corresponding to the terminal usage demand to input the power consumption parameters, and select the power consumption parameter on the wearable device. A power consumption parameter setting interface is displayed on the touch screen, and the wearable device receives settings for power parameters such as start time, usage duration, and target power consumption mode in response to operations on the display screen.

In addition, the function selection button of the wearable device corresponding to the terminal usage needs can also be triggered on the mobile phone, server and other devices associated with it, and receive the start time, usage time and target consumption input in the mobile phone, server and other devices. Power consumption parameters such as power mode.

In addition, the reserved time used to determine whether to issue a charging reminder can also be set. When the reserved time is not reset, the wearable device defaults to the last used reserved time and the latest reserved time used for this judgment. The preset reservation time can be set by the terminal or the backend server, and the reservation time can also be set when setting the power consumption parameters.

S202: Calculate the minimum power consumption to implement the terminal usage requirements according to the usage duration and the target power consumption mode.

Specifically, the wearable device records and saves the power consumption per unit time in different power consumption modes. Its initial power consumption per unit time in different power consumption modes can be uniformly confirmed by the manufacturer based on experimental data during production testing, and also The wearable device can be recorded and saved when testing different power consumption modes during factory testing. During the use of wearable devices, the usage time and power consumption of each different power consumption mode are recorded, and the power consumption per unit time is corrected to reduce the damage per unit time due to battery aging during long-term use. There are changes in power consumption.

Further, the calculation of the minimum power consumption is the product of the power consumption per unit time corresponding to the target power consumption mode and the usage time. After the wearable device receives the settings of the usage time and the target power consumption mode, it adjusts the power consumption according to the target power consumption mode. Get the corresponding power consumption per unit time to facilitate the calculation of the minimum power consumption.

Further, after calculating the minimum power consumption, compare the minimum power consumption with the maximum power consumption of the terminal (wearable device). If the minimum power consumption is not greater than the maximum power consumption, proceed to the next step; otherwise, issue an expected excess power Battery reminder reminds the user that the maximum battery capacity of the device cannot meet the terminal usage needs. The expected overload reminder can be in the form of a pop-up box, vibration and/or sound reminder. And after the expected excess reminder is issued, you can choose to reset the power consumption parameters or cancel the charging reminder function on the wearable device or the control device associated with it.

S203: Calculate the target charging time required from the current power to the minimum power consumption.

Specifically, the required target charging time can be calculated based on the charging efficiency of the wearable device, current power and minimum power consumption. The charging efficiency of the wearable device can be calculated based on the charging voltage and current. According to the minimum power consumption and The difference in current power can be used to calculate the amount of power that needs to be charged, and then the target charging time can be obtained based on the quotient of the amount of power that needs to be charged and the charging efficiency.

Furthermore, the current power of the wearable device is a value that is constantly changing, and its corresponding target charging time is also constantly changing with the use or charging of the wearable device. After receiving the settings of the power consumption parameters, the corresponding target charging time is changed. The current power of the wearable device is periodically collected at preset time intervals (such as 15s), and the target charging time is recalculated, thereby continuously updating the target charging time.

S204: Calculate the remaining time from the current time to the start time.

S205: When the difference between the remaining time and the target charging time is less than the preset reserved time, perform a charging reminder.

Specifically, each time the current power is collected and the target charging time is recalculated, the remaining time is calculated based on the current time and the start time, and then the difference between the remaining time and the target charging time is calculated, and the difference is calculated with the reserved time. When the difference between the remaining time and the target charging time is greater than the reserved time, it is considered that there is still enough margin between the current time and the time required to charge, and no charging reminder is needed for the time being; when the remaining time is different from the target charging time, When the difference in duration is less than the reserved duration, it is considered that the wearable device should be charged in time at the current time to meet the terminal usage needs, and a charging reminder is issued.

S206: After confirming that it has entered the charging state, display the target charging time.

Specifically, the wearable device detects its charging status. After detecting that the wearable device is in the charging status, that is, after confirming that it has entered the charging status, the calculated target charging time is displayed on the display screen in real time to facilitate the user to arrange work plans.

S207: Obtain the current power, calculate the available time based on the current power, the current power consumption mode and the target power consumption mode, and display the available time.

Specifically, after detecting and confirming that the wearable device enters the charging state, the wearable device retrieves its current power, current power consumption mode, and target power consumption mode.

For example, the available duration includes the current mode duration and the target mode duration, which respectively correspond to the first duration from the current power level to the start time and the second duration from the start time. First calculate the first power consumption in the current power consumption mode for the remaining duration from the current time to the start time. When the first power consumption is greater than or equal to the current power consumption, the second duration is zero and the first duration is the current power consumption. The working time in the current power consumption mode; when the first power consumption is less than the current power consumption, the first time duration is the remaining time duration, and the second time duration is the working time in the target mode based on the power difference between the current power consumption and the first power consumption; The sum of the first duration and the second duration is the available duration. When calculating the available time, the available time is displayed on the display in real time in a format similar to "the current battery life is available for XX minutes" to facilitate the user's work plan.

S208: When the charging state continues to the start time, issue a usage reminder corresponding to the terminal usage requirements.

Specifically, the wearable device detects its charging status. When detecting that the wearable device is in the charging status, the current time is compared with the start time. When the current time reaches the start time or exceeds the start time for a certain period of time (such as 5s), Issue usage reminders, such as text reminders, voice reminders or vibration reminders of "The start time of usage requirements has been reached, please pay attention to the usage plan".

S209: After issuing the usage reminder, switch the current power consumption mode to the target power consumption mode.

For example, after the wearable device sends a usage reminder, its current power consumption mode is detected. When the current power consumption mode is consistent with the target power consumption mode, the current power consumption mode is maintained; when the current power consumption mode is consistent with the target power consumption mode, When the modes are inconsistent, the current power consumption mode is switched to the target power consumption mode, and a corresponding power consumption mode switching reminder is issued.

As mentioned above, according to the usage time and target power consumption mode corresponding to the terminal usage requirements, the minimum power consumption for implementing the usage requirements is determined, and the target charging time is determined. At the same time, the target charging time is displayed to facilitate the user to understand the charging process and use the remaining time. A charging reminder will be issued before the battery is fully charged to meet the usage needs, ensuring that the power meets the user's usage needs, optimizing the user experience, and reminding the user at the start time to remind the user to perform relevant activities in a timely manner.

Based on the above embodiments, FIG. 3 is a schematic structural diagram of a device for reminding a user to charge according to an embodiment of the present application. Referring to Figure 3, the device for reminding the user to charge provided in this embodiment includes a demand acquisition module 301, a minimum power consumption acquisition module 302, a target duration determination module 303, a remaining duration determination module 304, an analysis module 305 and a reminder module 306.

Among them, the demand acquisition module 301 is used to receive the power consumption parameters corresponding to the terminal usage requirements. The power consumption parameters include start time, usage duration and target power consumption mode; the minimum power consumption acquisition module 302 is used to receive power consumption according to the usage duration. and the target power consumption mode to calculate the minimum power consumption required to implement the terminal usage requirements; the target duration determination module 303 is used to calculate the target charging duration required from the current power to the minimum power consumption; the remaining duration determination module 304 is used to calculate Calculate the remaining duration from the current time to the start time; the analysis module 305 is configured to issue a charging reminder instruction to the reminder module 306 when the difference between the remaining duration and the target charging duration is less than the preset reserved duration; reminder Module 306: perform charging reminder in response to the charging reminder instruction.

As mentioned above, according to the usage duration and target power consumption mode corresponding to the terminal usage requirements, the minimum power consumption for implementing the usage requirements is determined, and the target charging duration is determined, and a charging reminder is issued before the remaining time is enough to charge to meet the usage requirements to ensure that the power is met. User needs and optimize user experience.

Further, the device for reminding the user to charge also includes a timing module; the timing module is configured to issue a usage reminder instruction corresponding to the terminal usage requirements to the reminder module 306 when the charging state continues to the start time; so The reminder module 306 issues a usage reminder in response to the usage reminder instruction.

Further, the device that reminds the user to charge also includes a current power acquisition module, an available time acquisition module and a display module, wherein: the current power acquisition module is used to obtain the current power after confirming that it has entered the charging state; the available time acquisition module is based on The current power, current power consumption mode and target power consumption mode calculate the available time; the display module is used to display the available time.

The device for reminding the user to charge provided in the embodiment of the present application can be used to perform the method for reminding the user to charge provided in the above embodiment, and has corresponding functions and beneficial effects.

An embodiment of the present application provides a wearable device. The wearable device is a smart watch, and the wearable device can integrate the device for reminding the user to charge provided in the embodiment of the present application. Figure 4 is a schematic structural diagram of a wearable device provided by an embodiment of the present application. Referring to Figure 4, the wearable device includes: a display screen 44, a communication module 43, an input device 45, an output device 46, a memory 42, and one or more processors 41. In Figure 4, one processor 41 is taken as an example; so The memory 42 is used to store one or more programs; the display screen 44, communication module 43, input device 45, output device 46, memory 42 and processor 41 of the wearable device can be connected through a bus or other means, Figure 4 In the example, connection via bus is used. When the one or more programs are executed by the one or more processors 41, the one or more processors 41 are caused to implement the method of reminding the user to charge as provided in the above embodiment.

As a computer-readable storage medium, the memory 42 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the method of reminding the user to charge as described in any embodiment of the present application (for example, reminding the user to charge The demand acquisition module 301, the minimum power consumption acquisition module 302, the target duration determination module 303, the remaining duration determination module 304, the analysis module 305 and the reminder module 306) in the device. The memory 42 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system and at least one application program required for a function; the stored data area may store data created according to the use of the device, etc. In addition, memory 42 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, memory 42 may further include memory located remotely relative to processor 41, and these remote memories may be connected to the device through a network. Examples of the above-mentioned networks include but are not limited to the Internet, intranets, local area networks, mobile communication networks and combinations thereof.

The communication device is used to establish wireless connections with other wearable devices, mobile phones, servers and other devices and transmit data. The display screen 44 is provided on the wearable device. The display screen 44 can be used to display images controlled by the processor 41 and also to display other messages sent by the processor 41 .

The input device 45 may be used to receive input numeric or character information, and the output device 46 may include a speaker or the like. It should be noted that the specific composition of the input device 45 and the output device 46 can be set according to actual conditions.

The processor 41 executes the software programs, instructions and modules stored in the memory 42 to execute various functional applications and data processing of the device, that is, to implement the above method of reminding the user to charge.

The wearable device provided above can be used to perform the method of reminding the user to charge provided in the above embodiment, and has corresponding functions and beneficial effects.

Embodiments of the present application also provide a storage medium containing computer-executable instructions. When executed by the computer processor 41, the computer-executable instructions are used to perform a method of reminding the user to charge. The method of reminding the user to charge includes: Receive power consumption parameters corresponding to the terminal usage requirements, the power usage parameters including start time, usage duration and target power consumption mode; calculate the minimum power consumption to implement the terminal usage requirements based on the usage duration and target power consumption mode; Calculate the target charging time required from the current power to the minimum power consumption; calculate the remaining time from the current time to the start time; when the difference between the remaining time and the target charging time is less than the preset reserved time, Provide charging reminder.

Storage media – Any memory device or storage device of any type. The term "storage media" is intended to include: installation media, such as CD-ROM, floppy disks, or tape devices; computer system memory or random access memory, such as DRAM, DDRRAM, SRAM, EDORAM, Rambus RAM, etc.; non- Volatile memory, such as flash memory, magnetic media (such as hard disk or optical storage); registers or other similar types of memory elements, etc. Storage media may also include other types of memory or combinations thereof. Additionally, the storage medium may be located in the first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network, such as the Internet. The second computer system may provide program instructions to the first computer for execution. The term "storage media" may include two or more storage media that may reside in different locations (eg, in different computer systems connected by a network). Storage media may store program instructions (eg, embodied as a computer program) executable by one or more processors.

Of course, the embodiments of the present application provide a storage medium containing computer-executable instructions. The computer-executable instructions are not limited to the method of reminding the user to charge as described above, and can also execute the method of reminding the user provided by any embodiment of the application. Related operations in the charging method.

The device, wearable device, and storage medium for reminding the user to charge provided in the above embodiments can perform the method for reminding the user to charge provided in any embodiment of the present application. For technical details that are not described in detail in the above embodiments, please refer to this application. Any embodiment provides a method for reminding the user to charge.

The above are only the preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present application, and the present application The scope of is determined by the scope of the claims.

Claims (8)

1. A method for reminding users to charge, which is characterized by including: Receive power consumption parameters corresponding to the terminal usage requirements, where the power consumption parameters include start time, usage duration and target power consumption mode; Calculate the minimum power consumption to implement the terminal usage requirements according to the usage duration and the target power consumption mode, wherein the target power consumption mode includes a high power consumption mode, a medium power consumption mode and a low power consumption mode, where for different Record the usage time and power consumption of the target power consumption mode, correct the power consumption per unit time, retrieve the corresponding power consumption per unit time according to the target power consumption mode, and calculate the minimum power consumption; Calculate the target charging time required from the current power to the minimum power consumption, which includes: periodically collecting the current power at preset time intervals, recalculating the target charging time, and updating the target charging time; Calculate the remaining time from the current time to the start time; When the difference between the remaining time and the target charging time is less than the preset reserved time, a charging reminder is performed; When the charging state continues to the start time, a usage reminder corresponding to the terminal usage demand is issued, and after the usage reminder is issued, the current power consumption mode is switched to the target power consumption mode. 2. The method for reminding the user to charge according to claim 1, characterized in that the method further includes: After confirming that it has entered the charging state, obtain the current battery capacity; Calculate the available time according to the current power, current power consumption mode and target power consumption mode; Display the available time. 3. The method for reminding the user to charge according to claim 1, characterized in that the method further includes: After confirming that it has entered the charging state, the target charging time is displayed. 4. A device that reminds users to charge, characterized by including a demand acquisition module, a minimum power consumption acquisition module, a target duration determination module, a remaining duration determination module, an analysis module and a reminder module, wherein: The demand acquisition module is used to receive the power consumption parameters corresponding to the terminal usage requirements. The power consumption parameters include start time, usage duration and target power consumption mode; The minimum power consumption acquisition module is used to calculate the minimum power consumption to implement the terminal usage requirements according to the usage duration and the target power consumption mode, where the target power consumption mode includes a high power consumption mode, a medium power consumption mode and a low power consumption mode. mode, specifically used to record the usage time and power consumption of different target power consumption modes, correct the power consumption per unit time, retrieve the corresponding power consumption per unit time according to the target power consumption mode, and calculate the minimum power consumption quantity; The target duration determination module is used to calculate the target charging duration required from the current power to the minimum power consumption. The current power is periodically collected at a preset time interval, and the target charging duration is recalculated; The remaining duration determination module is used to calculate the remaining duration from the current time to the start time; An analysis module configured to issue a charging reminder instruction to the reminder module when the difference between the remaining duration and the target charging duration is less than a preset reserved duration; A reminder module that provides a charging reminder in response to the charging reminder instruction; The timing module is configured to issue a usage reminder instruction corresponding to the terminal usage requirements to the reminder module when the charging state continues to the start time; The device is also used to switch the current power consumption mode to the target power consumption mode after issuing a usage reminder; The device is also used to update the target charging duration. 5. The device for reminding the user to charge according to claim 4, characterized in that the device for reminding the user to charge further includes a timing module; The timing module is configured to issue a usage reminder instruction corresponding to the terminal usage requirements to the reminder module when the charging state continues to the start time; The reminder module issues a usage reminder in response to the usage reminder instruction. 6. The device for reminding the user to charge according to claim 4, characterized in that the device for reminding the user to charge also includes a current power acquisition module, an available time acquisition module and a display module, wherein: The current power acquisition module is used to obtain the current power after confirming that it has entered the charging state; The available duration acquisition module calculates the available duration based on the current power, current power consumption mode and target power consumption mode; A display module is used to display the available duration. 7. A wearable device, characterized by comprising: a display screen, a memory and one or more processors; The memory is used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method of reminding the user to charge as described in any one of claims 1-3. 8. A storage medium containing computer-executable instructions, characterized in that, when executed by a computer processor, the computer-executable instructions are used to perform the method of reminding a user to charge according to any one of claims 1-3.