Multi-battery charging management method, multi-battery discharging management method and external system

Abstract

The invention provides a multi-battery charging management method, a multi-battery discharging management method and an external system. One specific implementation mode of the multi-battery charging management method can be applied to external equipment, the external equipment comprises a plurality of built-in batteries, and the method comprises the steps that for any built-in battery, if the built-in battery meets a charging condition, charging operation is executed on the built-in battery; in the process of executing the charging operation on the built-in battery, the execution of the charging operation on other built-in batteries is forbidden; and if the built-in battery meets the charging stopping condition, stopping the charging operation on the built-in battery, and re-determining the built-in battery which is subsequently charged. The method can improve the charging efficiency.

Description

Technical Field

[0001] The present application relates to the field of charge and discharge management, and specifically, to a multi-battery charge management method, a multi-battery discharge management method, and an external system. Background Art

[0002] In order to facilitate field operations, operators often need to carry external equipment, and the external equipment is usually equipped with multiple built-in batteries to facilitate power supply in the field. The above-mentioned external equipment may include outdoor lighting equipment, intercom equipment, photography equipment, etc.

[0003] In the related art, multiple internal batteries of an external device are often charged in parallel. As the charging process progresses, the multiple internal batteries are prone to different changes, which will cause the charging currents of the internal batteries to be different, resulting in low charging efficiency of the external device. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a multi-battery charging management method, a multi-battery discharging management method, and an external system to improve charging efficiency.

[0005] In the first aspect, an embodiment of the present application provides a multi-battery charging management method, the method comprising: being applied to an external device, the external device comprising a plurality of built-in batteries, the method comprising: for any of the built-in batteries, if the built-in battery meets the charging condition, then charging the built-in battery is performed; and, in the process of performing the charging operation on the built-in battery, charging operations are prohibited for other built-in batteries; and, if the built-in battery meets the stop charging condition, then charging the built-in battery is stopped, and the built-in battery for subsequent charging operations is re-determined. In this way, the external device can perform the above steps repeatedly to control the multiple built-in batteries therein to be charged separately. In this way, as the charging process continues to advance, even if different changes occur in each built-in battery, it will not affect the charging current of each built-in battery, thereby not affecting the overall charging efficiency of the external device, and the charging efficiency is improved relative to the parallel charging method. In addition, there is no need to limit the capacity, type, state, etc. of each built-in battery to be the same or close, thereby broadening the selection space of the built-in battery.

[0006] In the second aspect, the embodiment of the present application provides a multi-battery discharge management method, which can be applied to the external device provided in the first aspect, and the method includes: for any built-in battery of the external device, if the built-in battery meets the discharge condition, the built-in battery is discharged; and if the built-in battery meets the stop discharge condition, the built-in battery is stopped from being discharged, and the built-in battery for subsequent discharge operation is re-determined. In this way, when any built-in battery meets the discharge condition, the built-in battery can be used for discharge, thereby improving the discharge power. In addition, when any built-in battery meets the stop discharge condition, the discharge is stopped in time, reducing the risk of damage to the built-in battery due to over-discharge or under-voltage, and improving discharge safety.

[0007] In a third aspect, an embodiment of the present application provides an external system, comprising: an external device, the external device having a built-in solar panel; an external solar panel, the external solar panel being connected to the external device; wherein the external device performs a charging operation through the built-in solar panel and / or the external solar panel to run the method provided in the first aspect or the second aspect above. In this way, the external solar panel can be flexibly arranged according to the actual environment to store more solar energy, obtain more electrical energy, and increase the charging power.

[0008] In a fourth aspect, an embodiment of the present application provides an external device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect or the second aspect are executed.

[0009] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method provided in the first aspect or the second aspect are performed.

[0010] In a sixth aspect, an embodiment of the present application provides a computer program product, which includes a computer program or instructions, and when the computer program or instructions are executed by a processor, the method described in the first aspect or the second aspect is executed.

[0011] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A flowchart of a multi-battery charging management method provided in an embodiment of the present application;

[0014] Figure 2 A flowchart of a multi-battery discharge management method provided in an embodiment of the present application;

[0015] Figure 3 A schematic diagram of the overall structure of a circuit provided in an embodiment of the present application;

[0016] Figure 4 A schematic diagram of the structure of a combining control circuit provided in an embodiment of the present application;

[0017] Figure 5 A schematic diagram of the structure of a protection circuit provided in an embodiment of the present application;

[0018] Figure 6 A schematic diagram of the structure of a charging control circuit and a discharging management circuit provided in an embodiment of the present application;

[0019] Figure 7 A structural block diagram of an external system provided in an embodiment of the present application;

[0020] Figure 8 A structural block diagram of another external system provided in an embodiment of the present application;

[0021] Fig. 9 A structural block diagram of a multi-battery charging management device provided in an embodiment of the present application;

[0022] Fig.10 A structural block diagram of a multi-battery discharge management device provided in an embodiment of the present application;

[0023] Fig.11 A schematic diagram of the structure of an external device for executing a multi-battery charging management method or a multi-battery discharging management method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that the embodiments in this application or the technical features in the embodiments may be combined if there is no conflict.

[0027] In the related art, the charging efficiency of external devices is low; in order to solve this problem, the present application provides a multi-battery charging management method; further, the method controls multiple built-in batteries in the external device to be charged separately, so that as the charging process continues to advance, even if different changes occur in each built-in battery, it will not affect the charging current of each built-in battery, thereby not affecting the charging efficiency of the external device, and improving the charging efficiency compared to the parallel charging method.

[0028] The defects existing in the solutions in the above-mentioned related technologies are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned problems and the solutions proposed in the embodiments of the present invention below for the above-mentioned problems should all be the contributions made by the inventor to the present invention during the process of the present invention.

[0029] It should be noted that the multi-battery charging management method provided in the present application is mainly applied to external devices, and the external devices may include multiple built-in batteries. That is, the external device may include two or more built-in batteries, so that the charging process of multiple built-in batteries can be managed by this method.

[0030] Please refer to Figure 1 , which shows a flow chart of a multi-battery charging management method provided by an embodiment of the present application. Figure 1 As shown, the multi-battery charging management method includes the following steps 101 to 103.

[0031] Step 101, for any of the built-in batteries, if the built-in battery meets the charging condition, a charging operation is performed on the built-in battery;

[0032] The above-mentioned charging conditions may include, for example, that the charging time of the built-in battery has not reached a preset charging time, the power of the built-in battery is less than a preset power, etc., which can substantially confirm that the built-in battery needs to be charged first.

[0033] In some application scenarios, the built-in battery can be charged by using an external power source, which may include a charging pile or a solar panel, which is not limited in this application.

[0034] Step 102: During the charging operation on the built-in battery, charging operations on other built-in batteries are prohibited; that is, the external device only charges one built-in battery within a period of time.

[0035] Step 103: If the built-in battery meets the charging stop condition, the charging operation on the built-in battery is stopped, and a built-in battery for subsequent charging operation is re-determined.

[0036] The above-mentioned charging stop condition may include, for example, the charging time of the built-in battery reaches a preset charging time, the power of the built-in battery reaches a preset power, and other conditions that can substantially confirm that the charging of the built-in battery can be delayed.

[0037] It should be noted that when or after the external device stops charging the current built-in battery, it can, for example, re-execute step 101 to determine the next built-in battery to perform the charging operation, thereby charging the re-determined built-in battery.

[0038] Furthermore, in order to charge in parallel, the related art often requires that the types, capacities and states of the multiple built-in batteries charged in parallel be the same, so that the charging current can be evenly distributed to the multiple built-in batteries during the parallel charging process. However, in the actual charging process, different changes are inevitably produced between the various built-in batteries, which will lead to uneven charging current distributed to the various built-in batteries, affecting the overall charging efficiency.

[0039] In the present application, the external device repeatedly executes the above steps 1-3, and can control the multiple built-in batteries therein to be charged separately. In this way, as the charging process continues to advance, even if different changes occur in each built-in battery, it will not affect the charging current of each built-in battery, and thus will not affect the overall charging efficiency of the external device. Compared with the parallel charging method, the charging efficiency is improved. In addition, there is no need to limit the capacity, type, state, etc. of each built-in battery to be the same or close, thereby broadening the selection space of built-in batteries.

[0040] In some application scenarios, the charging condition of the built-in battery is related to its state. Therefore, in some optional implementations, for any of the built-in batteries described in step 101 above, if the built-in battery meets the charging condition, before performing the charging operation on the built-in battery, the method further includes: determining whether each of the built-in batteries is in a feeding state;

[0041] In some application scenarios, for example, it is possible to determine whether a built-in battery is in a feeding state by detecting the voltage, current and / or resistance of the battery. For example, the terminal voltage of the built-in battery can be detected, and then the SOD value (i.e., State of Discharge, the percentage of the battery's released power to its total capacity) corresponding to the terminal voltage can be determined from a known voltage-power curve. If the SOD value is not 0, it means that the built-in battery is in a feeding state.

[0042] Thus, in the above step 101, for any of the built-in batteries, if the built-in battery meets the charging condition, a charging operation is performed on the built-in battery, including:

[0043] Step 1: for any built-in battery in a non-powered state, if the built-in battery meets a non-powered charging condition, a charging operation is performed on the built-in battery.

[0044] The non-power-supply charging condition is a condition for charging the built-in battery when the built-in battery is not in a power-supply state.

[0045] Step 2: for any built-in battery in a power feeding state, if the built-in battery meets the power feeding charging condition, a charging operation is performed on the built-in battery;

[0046] The above-mentioned power feeding charging condition is also the condition for charging the built-in battery when it is in the power feeding state.

[0047] In this implementation, it is possible to determine whether the built-in battery meets the corresponding charging conditions in different states according to whether it is in the feeding state, thereby determining whether to perform the charging operation. In this way, unnecessary charging operations can be reduced, energy waste can be avoided, and charging efficiency can be improved.

[0048] In some optional implementations, the above step 1 describes that for any built-in battery in an unpowered state, if the built-in battery meets the unpowered charging condition, a charging operation is performed on the built-in battery, including: for any built-in battery in an unpowered state, if the current flowing through the built-in battery is greater than the current of any other built-in battery, a charging operation is performed on the built-in battery; that is, the current unpowered charging condition is that the current of the built-in battery is the largest, so that the built-in battery with a larger current is charged preferentially.

[0049] In this way, if the built-in battery meets the charging stop condition described in the above step 103, the charging operation on the built-in battery is stopped, including: if the charging time of the built-in battery is greater than the preset charging time, the charging operation on the built-in battery is stopped.

[0050] The preset charging time may include, for example, a substantially shorter time such as 1 hour or 2 hours. In this way, after charging the built-in battery with a larger current for a period of time, the next built-in battery with a larger current may be switched to, and the cycle may be repeated to charge the built-in battery with a larger current in turn.

[0051] In this implementation, the built-in batteries with larger current can be charged preferentially through circulation, so that these built-in batteries can be restored to full charge in a shorter time, thus reducing the overall charging time. In addition, by charging a certain built-in battery with concentrated charging power and current in a shorter time, the charging resources can be used more efficiently, thus improving the charging efficiency.

[0052] In some optional implementations, the above step 1 describes that for any built-in battery in an unpowered state, if the built-in battery meets the unpowered charging condition, a charging operation is performed on the built-in battery, including: for any built-in battery in an unpowered state, if the voltage of the built-in battery is lower than the voltage of any other built-in battery, a charging operation is performed on the built-in battery; that is, the current unpowered charging condition is that the voltage of the built-in battery is the lowest, so that the built-in battery with the smaller voltage is charged preferentially.

[0053] Thus, if the built-in battery meets the charging stop condition described in step 103, then the charging operation on the built-in battery is stopped, including: if the voltage of the built-in battery reaches the first preset voltage, then the charging operation on the built-in battery is stopped.

[0054] The first preset voltage may include, for example, a preset full charge voltage of the built-in battery, or a voltage close to the preset full charge voltage. Thus, when the built-in battery reaches the first preset voltage, the charging operation may be stopped.

[0055] In this implementation, when the built-in battery is not in the power feeding state, continuing to feed power will have little effect on it. However, as the charging process continues, the voltage of the current built-in battery will gradually increase, causing the charging efficiency to gradually decrease. Therefore, the built-in battery with a smaller voltage can be charged first, thereby improving the overall charging efficiency. In addition, when the voltage of the built-in battery reaches the first preset voltage, charging is stopped in time, thereby improving charging safety.

[0056] In some optional implementations, the above step 1, for any built-in battery in a non-powered state, if the built-in battery meets the non-powered charging condition, then charging the built-in battery includes: for any built-in battery in a non-powered state, if the current charging sequence of the built-in battery is a preset charging sequence position, then charging the built-in battery;

[0057] That is to say, the external device can pre-set the charging sequence, and then charge each built-in battery in sequence according to the charging sequence. It should be noted that the charging sequence set by the external device can be the sequence for each charging position, so that the built-in batteries located at each charging position can be charged according to the charging sequence. Further, for example, the charging position can be set according to the installation space of the charging position, for example, the priority of the charging position for installing a larger built-in battery is set higher.

[0058] Thus, if the built-in battery meets the charging stop condition described in step 103, then the charging operation on the built-in battery is stopped, including: if the voltage of the built-in battery reaches the second preset voltage, then the charging operation on the built-in battery is stopped.

[0059] The second preset voltage may also include, for example, a preset full charge voltage of the built-in battery, or a voltage close to the preset full charge voltage. Thus, when the built-in battery reaches the second preset voltage, the charging operation may be stopped.

[0060] In this implementation, the charging sequence can be preset according to actual needs, so that the external device can be equipped with built-in batteries of different sizes, types, capacities, etc., which broadens the selection space of built-in batteries. In addition, charging is stopped in time when the voltage of the built-in battery reaches the second preset voltage, which improves charging safety.

[0061] In some optional implementations, the above step 2 describes that for any built-in battery in the power feeding state, if the built-in battery meets the power feeding charging condition, a charging operation is performed on the built-in battery, including: for any built-in battery in the power feeding state, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, a charging operation is performed on the built-in battery; that is, the current power feeding charging condition is that the voltage of the built-in battery is the largest, so that the built-in battery with the larger voltage is charged preferentially.

[0062] Thus, if the built-in battery meets the charging stop condition described in step 103, then the charging operation on the built-in battery is stopped, including: if the voltage of the built-in battery reaches the third preset voltage, then the charging operation on the built-in battery is stopped.

[0063] The third preset voltage may include, for example, a preset full charge voltage of the built-in battery, or a voltage close to the preset full charge voltage. Thus, when the built-in battery reaches the third preset voltage, the charging operation may be stopped.

[0064] It should be noted that the first preset voltage, the second preset voltage, and the third preset voltage may be the same or different, and the present application does not impose any limitation on this.

[0065] In this implementation, considering that the built-in battery in the power feeding state may be in an undervoltage state or an undervoltage damaged state, and the charging efficiency of the built-in battery in the undervoltage state is low, and the probability that the built-in battery in the undervoltage damaged state can be normally charged is low, then for the multiple built-in batteries in the power feeding state, the built-in battery with a larger voltage can be charged first, thereby improving the overall charging efficiency. In addition, when the voltage of the built-in battery reaches the third preset voltage, the charging is stopped in time, thereby improving the charging safety.

[0066] In some optional implementations, the above step 2, for any built-in battery in the power feeding state, if the built-in battery meets the power feeding charging condition, then charging the built-in battery includes: for any built-in battery in the power feeding state, if the built-in battery is located at a default charging position, then charging the built-in battery;

[0067] That is to say, the external device can reserve a default charging position so that the built-in battery located at the default charging position can be charged preferentially.

[0068] It should be noted that the above-mentioned default charging position can be, for example, a charging position randomly selected in advance, or a charging position that is easy for users to install and selected in advance based on the installation space of the charging position, or a charging position that is easy for users to identify, etc. This application does not impose any restrictions on this.

[0069] Thus, if the built-in battery meets the charging stop condition described in the above step 103, the charging operation on the built-in battery is stopped, including: if it is detected that the external device is started, the charging operation on the built-in battery is stopped.

[0070] In this implementation, a built-in battery can be locked for charging until the external device is started. In this way, the locked built-in battery can recover power faster, reducing the overall charging time and improving charging efficiency. In addition, it can avoid unnecessary charging operations on other built-in batteries that are already nearly fully charged in non-default charging positions, reducing the number of charging times and reducing energy waste.

[0071] In some application scenarios, in order to improve the portability of external devices, the size of the external devices is usually designed to be smaller. Therefore, the capacity of their built-in batteries is usually smaller. This means that the built-in batteries may not be sufficient to support the external devices to meet the needs of certain field operations. Therefore, a larger external battery can be added to provide power together.

[0072] Therefore, in some optional implementations, the external device can be powered by an external battery and the multiple internal batteries. In this way, the method further includes: if the external battery meets the external charging condition, charging the external battery; wherein, when the external battery is in a fully charged state, for any of the internal batteries, if the internal battery meets the charging condition, charging the internal battery is performed.

[0073] The above charging condition may include, for example, that the external battery is normally installed in the corresponding charging position and is not in a fully charged state.

[0074] In this implementation, the external device can give priority to charging the external battery with a larger capacity, and after the external battery is fully charged, the internal battery with a smaller capacity can be charged. In this way, the charging power and current can be concentrated on the external battery, so that the external battery can be restored to a full charge state in a shorter time, thereby reducing the overall charging time. In addition, the external battery with a larger capacity can provide power support for a longer time after each charge, thereby reducing the number of charging times and improving the overall charging efficiency.

[0075] It should be noted that the number of external batteries can be one or more, and one or more external batteries can be installed on the external device through the external battery interface, or connected to the external device through the external battery interface and wires, so that the external battery can be directly installed on the external device, or installed at a certain distance from the external device. Then, different installation methods can be flexibly selected according to the actual needs of field operations.

[0076] In some application scenarios, in order to facilitate the supply of power to external devices, solar panels are usually built into the external devices (referring to the external devices with their own solar panels, not the solar panels being located inside the devices). However, the energy that can be stored in the built-in solar panels is limited by the lighting conditions in the outdoor environment, and because the external devices are small in size, the built-in solar panels are also small in size, which can easily lead to low charging power when there is insufficient light. Therefore, external solar panels can be added, which can be mounted on external devices through external charging ports and extension wires (optional). In this way, external solar panels can be flexibly arranged according to actual environmental conditions to store more solar energy, obtain more electrical energy, and increase charging power.

[0077] Then, in some optional implementations, the external device can perform the charging operation through an external solar panel and a built-in solar panel. That is, the external device can output electrical energy through the built-in solar panel and / or the external solar panel, thereby charging the built-in battery and the external battery.

[0078] In this way, the method further includes: controlling the external solar panel and / or the internal solar panel to perform a charging operation.

[0079] In some application scenarios, the external device can control the external solar panel to output power first, or control the internal solar panel to output power first, or control both to output power together, which is not limited in this application. Furthermore, the number of external solar panels can be one or more, and the types of multiple external solar panels can be the same or different, which is not limited in this application.

[0080] It should be noted that if the external solar panel and the internal solar panel are connected in parallel to supply power to the outside, the power supply efficiency can be improved. If only the external solar panel or the internal solar panel is used to supply power to the outside, the selection can be flexibly made to meet actual needs.

[0081] In some optional implementations, for example, the external solar panel or the internal solar panel may be controlled to perform a charging operation through the following steps.

[0082] Specifically, if the voltage output by the built-in solar panel is not greater than the preset charging protection voltage, determining whether the voltage output by the external solar panel is greater than the preset charging protection voltage;

[0083] The above-mentioned preset charging protection voltage may be, for example, the maximum power point voltage, that is, the working voltage of the solar panel at the maximum power output, wherein the maximum power point voltage of different types of solar panels is different, so it can be flexibly set according to the type of solar panel used. In addition, the above-mentioned preset charging protection voltage may also be, for example, the open circuit voltage, the maximum voltage that the charging circuit can withstand, etc., which is not limited in this application.

[0084] It should be noted that when the voltage output by the built-in solar panel is not greater than the preset charging protection voltage, the charging power provided by the built-in solar panel cannot meet the charging requirements. Therefore, it can be further determined whether the voltage output by the external solar panel is greater than the preset charging protection voltage.

[0085] Among them, if the voltage output by the external solar panel is greater than the preset charging protection voltage, it means that the charging power that the external solar panel can provide can meet the charging requirements, so the external solar panel can be controlled to perform the charging operation first.

[0086] If the voltage output by the external solar panel is not greater than the preset charging protection voltage, the output voltages of the external solar panel and the internal solar panel are compared, and the one with the larger output voltage is controlled to perform a charging operation.

[0087] Here, if the voltage output by the external solar panel is not greater than the preset charging protection voltage, it means that the charging power provided by the external solar panel cannot meet the charging requirements. At this time, if the output voltage of the external solar panel is larger, the external solar panel is controlled to perform the charging operation; if the output voltage of the internal solar panel is larger, the internal solar panel is controlled to perform the charging operation. In this way, more solar energy can be used by the external device, improving the overall energy utilization rate.

[0088] In this implementation, one of the external solar panel and the internal solar panel can be flexibly selected for charging according to whether the external solar panel and the internal solar panel can meet the charging needs, so as to improve the overall energy utilization and charging efficiency.

[0089] Please refer to Figure 2 , which shows a flow chart of a multi-battery discharge management method for the above-mentioned external device provided by an embodiment of the present application. Figure 2 As shown, the multi-battery discharge management method includes the following steps 201 to 202.

[0090] Step 201, for any built-in battery of the external device, if the built-in battery meets the discharge condition, a discharge operation is performed on the built-in battery;

[0091] The above-mentioned discharge conditions may include, for example, that the power of the built-in battery is greater than a preset power, the discharge time is less than a preset discharge time, and other conditions that can substantially confirm that the built-in battery can be discharged preferentially.

[0092] It should be noted that when each built-in battery is discharged, it can power various loads of the external device, or it can power other devices other than the external device, and this application does not limit this.

[0093] Furthermore, if there is only one built-in battery that meets the discharge condition, the built-in battery is controlled to discharge to supply the load. If there are multiple built-in batteries that meet the discharge condition, the multiple built-in batteries are discharged in parallel to improve the discharge efficiency.

[0094] Step 202: If the built-in battery meets the stop discharging condition, the discharge operation on the built-in battery is stopped, and a built-in battery for subsequent discharge operation is re-determined.

[0095] The above-mentioned discharging stop condition may include, for example, the discharge time of the built-in battery being greater than a preset discharge time, the power of the built-in battery being less than a preset power, and other conditions that can substantially confirm that the built-in battery needs to stop discharging.

[0096] In this implementation, when any built-in battery meets the discharge condition, the built-in battery can be used for discharge, thereby increasing the discharge power. In addition, when any built-in battery meets the stop discharge condition, the discharge is stopped in time, reducing the risk of damage of the built-in battery due to over-discharge or under-voltage, and improving discharge safety.

[0097] In some optional implementations, the step 201 described above performs a discharge operation on any built-in battery of the external device if the built-in battery meets the discharge condition, including: performing a discharge operation on any built-in battery of the external device if the voltage of the built-in battery is greater than the voltage of any other built-in battery;

[0098] That is, the current discharge condition is that the voltage of the built-in battery is the largest, so the built-in battery with a larger voltage is discharged first. In this way, by discharging the built-in battery with a higher voltage first, the external device can provide more power when a high discharge power is required, thereby improving the discharge efficiency. In addition, the internal resistance of the high-voltage built-in battery is relatively low, and the energy loss during discharge is also less, which helps to improve the overall energy utilization efficiency.

[0099] Thus, if the built-in battery meets the stop discharging condition described in step 202, the discharge operation on the built-in battery is stopped, including: if the voltage of the built-in battery is lower than the first preset voltage lower limit, the discharge operation on the built-in battery is stopped.

[0100] The first preset voltage lower limit may include, for example, an undervoltage protection voltage of the built-in battery. In this way, when the built-in battery is lower than the preset voltage lower limit, it can be controlled to stop discharging to protect the built-in battery from over-discharging. In addition, the first preset voltage lower limit may also be, for example, other protection voltages, such as the voltage corresponding to the highest temperature that the built-in battery can withstand, which is not limited in this application.

[0101] Then, when the voltage of a built-in battery is lower than the first preset voltage lower limit, the built-in battery can be controlled to stop discharging. In this way, the built-in battery can be protected, the discharge safety can be improved, and the battery life can be extended.

[0102] In some optional implementations, the step 201 described above performs a discharge operation on any built-in battery of the external device if the built-in battery meets the discharge condition, including: performing a discharge operation on any built-in battery of the external device if the voltage of the built-in battery is greater than the voltage of any other built-in battery;

[0103] Thus, if the built-in battery meets the stop discharging condition described in the above step 202, the discharge operation on the built-in battery is stopped, including: if the voltage of any other built-in battery is greater than the voltage of the built-in battery, the discharge operation on the built-in battery is stopped.

[0104] That is, as long as there are other built-in batteries with a voltage higher than that of the currently discharged built-in battery, the current built-in battery is controlled to stop discharging, and then the discharge can be switched to the other built-in batteries with a higher voltage.

[0105] In this implementation, in addition to improving the discharge efficiency and energy utilization efficiency, the built-in battery for discharge can be switched in time so that the external device can continue to be in a good operating state under different loads.

[0106] In some optional implementations, the step 201 described above, for any built-in battery of the external device, if the built-in battery meets the discharge condition, then performing a discharge operation on the built-in battery, includes: for any built-in battery of the external device, if the current discharge sequence of the built-in battery is a preset discharge sequence position, then performing a discharge operation on the built-in battery;

[0107] Similarly, the external device can also pre-set the discharge sequence, and then discharge each built-in battery in sequence according to the discharge sequence. In some application scenarios, for example, the batteries can be sorted according to their capacity, and the built-in batteries with larger capacity are discharged first, so as to obtain a preset discharge sequence, and then the built-in batteries can be discharged in sequence.

[0108] In this way, the discharge sequence can be preset according to actual needs, so that external devices can be installed with built-in batteries of different sizes, types, capacities, etc., expanding the selection space of built-in batteries.

[0109] In addition, if the built-in battery meets the stop discharging condition described in the above step 202, the discharge operation on the built-in battery is stopped, including: if the voltage of the built-in battery is lower than the second preset voltage lower limit, the discharge operation on the built-in battery is stopped.

[0110] The second preset voltage lower limit may also include, for example, an undervoltage protection voltage of the built-in battery. In this way, when the built-in battery is lower than the preset voltage lower limit, it can be controlled to stop discharging to protect the built-in battery from over-discharging. In addition, the second preset voltage lower limit may also be, for example, other protection voltages, such as the voltage corresponding to the highest temperature that the built-in battery can withstand, which is not limited in this application. Furthermore, the second preset voltage lower limit may be the same as or different from the first preset voltage lower limit, which is not limited in this application.

[0111] Then, when the voltage of a built-in battery is lower than the second preset voltage lower limit, the built-in battery can be controlled to stop discharging. In this way, the built-in battery can also be protected, the discharge safety can be improved, and the battery life can be extended.

[0112] In some optional implementations, if the external device is also powered by an external battery, the voltage of the external battery is compared with a preset discharge protection voltage; if the voltage of the external battery is greater than the preset discharge protection voltage, a discharge operation is performed on the external battery; if the voltage of the external battery is not greater than the preset discharge protection voltage, a discharge operation is performed on any built-in battery of the external device if the built-in battery meets the discharge conditions.

[0113] The preset discharge protection voltage may include, for example, a maximum voltage that the discharge circuit can withstand, an undervoltage protection voltage, and the like, which are voltages substantially used to protect the circuit and the built-in battery.

[0114] Then, if the voltage of the external battery is greater than the preset discharge protection voltage, it means that the external battery can be discharged safely, so the external battery can be controlled to discharge; if the voltage of the external battery is less than the preset discharge protection voltage, it means that there is a safety risk in the discharge of the external battery, so the internal battery can be controlled to discharge. The specific process of controlling which internal batteries to discharge can refer to the relevant parts mentioned above, which will not be repeated here.

[0115] In this implementation, the external battery or the internal battery can be flexibly controlled to discharge based on the preset discharge protection voltage, thereby improving the safety of the discharge process and extending the service life of the battery.

[0116] Those skilled in the art will appreciate that, in the above method of a specific embodiment, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0117] In order to jointly implement any of the above-mentioned multi-battery charging management methods and multi-battery discharging management methods, the present application provides a method as follows: Figure 3 The overall structure diagram of the circuit is shown.

[0118] like Figure 3 As shown, the external solar panel can be connected to the input end of the combining control circuit through the external charging port, the output end of the built-in solar panel is connected to the input end of the combining control circuit, the output end of the combining control circuit is connected to multiple built-in batteries through the charging control circuit, the power output ends of the multiple built-in batteries are all connected to the input end of the discharge management circuit, the external battery is connected to the discharge management circuit through the external battery interface, and then the discharge management circuit is connected to the load of the external device.

[0119] It should be noted that the combining control circuit is used to control the charging operation through the external solar panel and / or the internal solar panel, the charging control circuit is used to control whether a certain internal battery and / or external battery is charged. The discharge management circuit is used to control whether a certain internal battery and / or external battery is discharged.

[0120] For further information, see Figure 4 , which shows a schematic diagram of the structure of a combining control circuit provided by an embodiment of the present application. Figure 4 As shown, the external charging port can be connected to one end of the first protection circuit, and the other end of the first protection circuit is connected to one end of the first control switch. One end of the voltage comparator is connected to the first control switch, and the other end is connected to the second control switch. The built-in solar panel is connected to one end of the second protection circuit, and the other end of the second protection circuit is connected to one end of the second control switch. The first control switch and the second control switch are respectively connected to the load of the external device.

[0121] The first protection circuit and the second protection circuit may be the same or similar, and may be used to implement overcurrent protection, undervoltage protection, and the like. In some application scenarios, the first protection circuit may be, for example, Figure 5 The circuit structure diagram is shown in Figure 1. Figure 5As shown, a gas discharge tube (GDT) can be grounded to a varistor, and then the positive terminal of the GDT is connected to an overcurrent protection resistor, the overcurrent protection resistor is connected to a first control switch, and an undervoltage detection circuit and an overvoltage detection circuit are connected in parallel to the first control switch.

[0122] For further information, see Figure 6 , which shows a schematic diagram of the structure of a charging control circuit and a discharging management circuit provided by an embodiment of the present application. Figure 6 As shown, the charging management IC1, the external switching switch, and the over-voltage and under-voltage protection circuit are connected in sequence, the external battery is connected to the over-voltage and under-voltage protection circuit, the over-voltage and under-voltage protection circuit is connected to the voltage comparison circuit, and one end of the voltage comparison circuit is connected to the external discharge switching switch. The charging management IC2 is respectively connected to multiple built-in charging switching switches, and multiple built-in charging switching switches are connected in parallel and respectively connected to the corresponding built-in batteries. The unified output end of multiple built-in batteries is connected to the other end of the voltage comparison circuit through the built-in discharge switching switch. The built-in discharge switching switch and the external discharge switching switch are respectively connected to the load of the external device. Among them, the control center is connected to each built-in battery, charging switching switch, external switching switch, etc. to facilitate the control of the closure of each switching switch. In addition, in order to monitor the current information, a fuel meter is added to the built-in battery, and a coulomb meter is added to the over-voltage and under-voltage protection circuit.

[0123] Then, those skilled in the art can Figures 3 to 6 A circuit structure diagram is provided to implement any implementation of the above-mentioned multi-battery charging management method and multi-battery discharging management method.

[0124] Please refer to Figure 7 , which shows a structural block diagram of an external system provided by an embodiment of the present application. As shown in the figure, the external system includes:

[0125] An external device 701, wherein the external device 701 is installed with a built-in solar panel;

[0126] An external solar panel 702, wherein the external solar panel 702 is connected to the external device 701;

[0127] The external device 701 performs charging operation via the built-in solar panel and / or the external solar panel 702 to run any of the implementation methods described above.

[0128] In some application scenarios, the process of the external device 701 controlling the built-in solar panel and / or the external solar panel 702 to charge the above-mentioned built-in battery and / or external battery may be the same or similar to the relevant part of the previous text, and will not be repeated here.

[0129] It should be noted that the number of external solar panels 702 can be one or more, and one or more external solar panels 702 can be installed on an external device 701 through an external charging port, or can be connected to the external device 701 through an external charging port and a wire. In this way, the external solar panel 702 can be directly installed on the external device 701, or can be connected to the external device 701 at a certain distance.

[0130] In this implementation, an external solar panel 702 can be added, and these external solar panels 702 can be connected to the external device 701 through an extension wire or an external charging port. In this way, the external solar panel 702 can be flexibly arranged according to the actual environment to store more solar energy, obtain more electric energy, and improve the charging power.

[0131] See also Figure 8 , which shows a structural block diagram of another external system provided by an embodiment of the present application. The external system includes a plurality of external devices 701, and the plurality of external devices 701 share the external solar panel 702 to perform charging operations.

[0132] In this implementation, considering that there are usually many obstructions in the wild environment, an external solar panel 702 can be deployed in a location with sufficient light, and then it can be connected to multiple external devices 701 by extending the wire. In this way, even if there are many obstructions, the probability of these obstructions simultaneously blocking the built-in solar panel in the external device 701 and the external solar panel 702 is also small, and then more solar energy can be stored, increasing the energy storage and improving the charging efficiency.

[0133] In some outdoor work scenarios (such as cliffs, caves, etc.), there may be a problem of limited working space, which may result in the inability to install solar panels on each external device one by one. Therefore, by sharing solar panels with multiple external devices, the occupied space can be reduced and the overall utilization rate of the working space can be improved, so that operators have more space to operate.

[0134] Furthermore, since multiple external devices 701 share the external solar panel 702, the external solar panel 702 can be flexibly controlled to charge one or more of the external devices 701, thereby improving the charging flexibility.

[0135] Specifically, when the power output of the external solar panel is insufficient to simultaneously meet the power needs of multiple external devices, for example, the importance of each external device in the current operation scenario can be determined according to the purpose of each external device, so that the external devices that are charged first can be determined according to the importance. For example, when monitoring data in the field, the data transmission device needs to transmit data safely and timely. Compared with the heating device, the data transmission device has a higher importance, and then the data transmission device can be charged first.

[0136] In addition, for example, the charging priority level can also be determined according to the current power consumption of each external device. For example, external devices with lower power consumption can be charged first, so that more external devices can work and the convenience of field work is improved.

[0137] In addition, for example, the charging priority can also be determined based on the energy consumption of the external devices. For example, external devices with higher energy efficiency can be charged first. These external devices generate higher benefits per unit time, so charging them first can bring higher benefits.

[0138] In addition, for example, the charging priority can also be determined according to the working time of the external devices. For example, the external solar panel can give priority to charging the devices that work during the day (such as light sensors) during the day, and give priority to charging the emergency communication equipment and monitoring equipment that work at night.

[0139] Furthermore, when the power output of the external solar panel exceeds the power demand of multiple external devices, for example, each external device can be charged according to its current demand. That is, when the power of any external device decreases, the external device can be charged, thereby improving energy utilization.

[0140] Please refer to Fig. 9 , which shows a structural block diagram of a multi-battery charging management device provided in an embodiment of the present application. The multi-battery charging management device can be a module, program segment or code on an external device. It should be understood that the device is similar to the above Figure 1 The method embodiment corresponds to and can be executed Figure 1 The method embodiment involves various steps.

[0141] Optionally, the multi-battery charging management device includes a charging module 901, a prohibition module 902, and a stop charging module 903. The charging module 901 is used to charge any of the built-in batteries if the built-in battery meets the charging condition; the prohibition module 902 is used to prohibit other built-in batteries from being charged during the charging process; the stop charging module 903 is used to stop charging the built-in battery if the built-in battery meets the stop charging condition, and re-determine the built-in battery to be charged subsequently.

[0142] Optionally, the device also includes a determination module, which is used to: determine whether each of the built-in batteries is in a power-feeding state before performing a charging operation on the built-in battery if the built-in battery meets the charging condition; in this way, the charging module 901 is further used to: for any built-in battery in a non-powered state, if the built-in battery meets the non-powered charging condition, perform a charging operation on the built-in battery; for any built-in battery in a power-feeding state, if the built-in battery meets the power-feeding charging condition, perform a charging operation on the built-in battery.

[0143] Optionally, the charging module 901 is further used for: for any built-in battery that is in an unpowered state, if the current flowing through the built-in battery is greater than the current of any other built-in battery, then charging operation is performed on the built-in battery; in this way, the charging stop module 903 is further used for: if the charging time of the built-in battery is greater than the preset charging time, then stopping the charging operation on the built-in battery.

[0144] Optionally, the charging module 901 is further used for: for any built-in battery in an unpowered state, if the voltage of the built-in battery is lower than the voltage of any other built-in battery, then charging operation is performed on the built-in battery; thus, the charging stop module 903 is further used for: if the voltage of the built-in battery reaches a first preset voltage, then charging operation is stopped on the built-in battery.

[0145] Optionally, the charging module 901 is further used to: for any built-in battery that is in an unpowered state, if the current charging sequence of the built-in battery is a preset charging sequence position, perform a charging operation on the built-in battery; in this way, the charging stop module 903 is further used to: if the voltage of the built-in battery reaches a second preset voltage, stop charging the built-in battery.

[0146] Optionally, the charging module 901 is further used for: for any built-in battery in the power feeding state, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, then charging operation is performed on the built-in battery; in this way, the stop charging module 903 is further used for: if the voltage of the built-in battery reaches a third preset voltage, then stopping charging operation on the built-in battery.

[0147] Optionally, the charging module 901 is further used to: for any built-in battery in the power feeding state, if the built-in battery is located in the default charging position, perform a charging operation on the built-in battery; in this way, the stop charging module 903 is further used to: if it is detected that the external device is started, stop the charging operation on the built-in battery.

[0148] Optionally, the external device is powered by an external battery and the multiple built-in batteries, the capacity of each built-in battery is smaller than the capacity of the external battery, and the device also includes an external module, which is used to: if the external battery meets the external charging condition, perform a charging operation on the external battery; wherein the charging module 901 is used to: when the external battery is in a fully charged state, for any of the built-in batteries, if the built-in battery meets the charging condition, perform a charging operation on the built-in battery.

[0149] Optionally, the external device performs the charging operation through an external solar panel and a built-in solar panel; and the device also includes a control module, which is used to control the external solar panel and / or the built-in solar panel to perform the charging operation.

[0150] Optionally, the control module is further used to: if the voltage output by the built-in solar panel is not greater than a preset charging protection voltage, determine whether the voltage output by the external solar panel is greater than the preset charging protection voltage; if the voltage output by the external solar panel is greater than the preset charging protection voltage, control the external solar panel to perform a charging operation; if the voltage output by the external solar panel is not greater than the preset charging protection voltage, compare the output voltages of the external solar panel and the built-in solar panel, and control the one with the larger output voltage to perform a charging operation.

[0151] Please refer to Fig.10 , which shows a structural block diagram of a multi-battery discharge management device provided in an embodiment of the present application. The multi-battery discharge management device can be a module, program segment or code on an external device. It should be understood that the device is similar to the above Figure 2 The method embodiment corresponds to and can be executed Figure 2 The method embodiment involves various steps.

[0152] Optionally, the multi-battery discharge management device includes a discharge module 1001 and a stop discharge module 1002. The discharge module 1001 is used to: for any built-in battery of the external device, if the built-in battery meets the discharge condition, perform a discharge operation on the built-in battery; the stop discharge module 1002 is used to: if the built-in battery meets the stop discharge condition, stop performing the discharge operation on the built-in battery, and re-determine the built-in battery to perform the discharge operation subsequently.

[0153] Optionally, the discharge module 1001 is further used to: for any built-in battery of the external device, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, perform a discharge operation on the built-in battery; in this way, the stop discharge module 1002 is used to: if the voltage of the built-in battery is lower than a first preset voltage lower limit, stop performing a discharge operation on the built-in battery.

[0154] Optionally, the discharge module 1001 is further used for: for any built-in battery of the external device, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, then the discharge operation is performed on the built-in battery; in this way, the stop discharge module 1002 is used for: if the voltage of any other built-in battery is greater than the voltage of the built-in battery, then the discharge operation is stopped on the built-in battery.

[0155] Optionally, the discharge module 1001 is further used to: for any built-in battery of the external device, if the current discharge order of the built-in battery is a preset discharge order position, then perform a discharge operation on the built-in battery; in this way, the stop discharge module 1002 is used to: if the voltage of the built-in battery is lower than a second preset voltage lower limit, then stop performing a discharge operation on the built-in battery.

[0156] Optionally, the device also includes an external charging module, which is used to: if the external device is also powered by an external battery, compare the voltage of the external battery with a preset discharge protection voltage; if the voltage of the external battery is greater than the preset discharge protection voltage, perform a discharge operation on the external battery; if the voltage of the external battery is not greater than the preset discharge protection voltage, then for any built-in battery of the external device, if the built-in battery meets the discharge conditions, perform a discharge operation on the built-in battery.

[0157] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system or device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0158] Please refer to Fig.11 , Fig.11A schematic diagram of the structure of an external device for executing a multi-battery charging management method or a multi-battery discharging management method provided in an embodiment of the present application, the external device may include: at least one processor 1101, such as a CPU, at least one communication interface 1102, at least one memory 1103 and at least one communication bus 1104. Among them, the communication bus 1104 is used to realize the direct connection and communication of these components. Among them, the communication interface 1102 of the device in the embodiment of the present application is used to communicate signaling or data with other node devices. The memory 1103 can be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as at least one disk storage. The memory 1103 can also be at least one storage device located away from the aforementioned processor. Computer-readable instructions are stored in the memory 1103. When the computer-readable instructions are executed by the processor 1101, the external device can execute any of the methods provided in the above-mentioned method embodiments.

[0159] Understandably, Fig.11 The structure shown is for illustration only. The external device may also include Fig.11 More or fewer components as shown, or with Fig.11 Different configurations are shown. Fig.11 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0160] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, any method provided in the above method embodiments can be executed.

[0161] An embodiment of the present application provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute any of the methods provided in the above-mentioned method embodiments.

[0162] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0163] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0164] Furthermore, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0165] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0166] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-battery charging management method, characterized in that: Applied to an external device, the external device includes a plurality of built-in batteries, the method includes: For any of the built-in batteries, if the built-in battery meets a charging condition, a charging operation is performed on the built-in battery; and During the charging operation of the built-in battery, charging operations on other built-in batteries are prohibited; and If the built-in battery meets the charging stop condition, the charging operation on the built-in battery is stopped, and a built-in battery for subsequent charging operation is re-determined.

2. The method according to claim 1, characterized in that: For any of the built-in batteries, if the built-in battery meets the charging condition, before performing the charging operation on the built-in battery, the method further includes: determining whether each of the built-in batteries is in a power supply state; and For any of the built-in batteries, if the built-in battery meets the charging condition, a charging operation is performed on the built-in battery, including: For any built-in battery in a non-powered state, if the built-in battery meets the non-powered charging condition, a charging operation is performed on the built-in battery; For any built-in battery in the power feeding state, if the built-in battery meets the power feeding charging condition, a charging operation is performed on the built-in battery.

3. The method according to claim 2, characterized in that For any built-in battery in a non-powered state, if the built-in battery meets the non-powered charging condition, a charging operation is performed on the built-in battery, including: For any built-in battery in a non-powered state, if the current flowing through the built-in battery is greater than the current of any other built-in battery, charging the built-in battery; and If the built-in battery meets the stop charging condition, then stopping the charging operation on the built-in battery includes: If the charging time of the built-in battery is longer than the preset charging time, stopping the charging operation of the built-in battery; or, For any built-in battery in a non-powered state, if the built-in battery meets the non-powered charging condition, a charging operation is performed on the built-in battery, including: For any built-in battery in a non-powered state, if the voltage of the built-in battery is lower than the voltage of any other built-in battery, charging the built-in battery; and If the built-in battery meets the stop charging condition, then stopping the charging operation on the built-in battery includes: If the voltage of the built-in battery reaches a first preset voltage, stopping the charging operation on the built-in battery; or, For any built-in battery in a non-powered state, if the built-in battery meets the non-powered charging condition, a charging operation is performed on the built-in battery, including: For any built-in battery in a non-powered state, if the current charging sequence of the built-in battery is a preset charging sequence position, a charging operation is performed on the built-in battery; and If the built-in battery meets the stop charging condition, then stopping the charging operation on the built-in battery includes: If the voltage of the built-in battery reaches a second preset voltage, the charging operation on the built-in battery is stopped.

4. The method according to claim 2, characterized in that: For any built-in battery in a power feeding state, if the built-in battery meets the power feeding charging condition, a charging operation is performed on the built-in battery, including: For any built-in battery in a power feeding state, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, charging the built-in battery; and If the built-in battery meets the stop charging condition, then stopping the charging operation on the built-in battery includes: If the voltage of the built-in battery reaches a third preset voltage, stopping the charging operation on the built-in battery; or, For any built-in battery in a power feeding state, if the built-in battery meets the power feeding charging condition, a charging operation is performed on the built-in battery, including: For any built-in battery in a power feeding state, if the built-in battery is located at a default charging position, a charging operation is performed on the built-in battery; and If the built-in battery meets the stop charging condition, then stopping the charging operation on the built-in battery includes: If it is detected that the external device is started, the charging operation of the built-in battery is stopped.

5. The method according to claim 1, characterized in that The external device is powered by an external battery and the multiple internal batteries, and the capacity of each of the internal batteries is smaller than the capacity of the external battery. The method further includes: If the external battery meets the external charging condition, performing a charging operation on the external battery; Wherein, when the external battery is in a fully charged state, for any of the built-in batteries, if the built-in battery meets the charging condition, a charging operation is performed on the built-in battery.

6. The method according to any one of claims 1 to 5, characterized in that: The external device performs the charging operation through an external solar panel and a built-in solar panel; as well as The method further comprises: Control the external solar panel and / or the internal solar panel to perform a charging operation.

7. A multi-battery discharge management method, characterized in that: Applied to the external device according to any one of claims 1 to 6, the method comprises: For any built-in battery of the external device, if the built-in battery meets the discharge condition, a discharge operation is performed on the built-in battery; and If the built-in battery meets the stop discharging condition, the discharge operation on the built-in battery is stopped, and a built-in battery for subsequent discharge operation is re-determined.

8. The method according to claim 7, characterized in that For any built-in battery of the external device, if the built-in battery meets the discharge condition, a discharge operation is performed on the built-in battery, including: For any built-in battery of the external device, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, performing a discharge operation on the built-in battery; and If the built-in battery meets the stop-discharging condition, stopping the discharge operation on the built-in battery includes: If the voltage of the built-in battery is lower than the first preset voltage lower limit, stopping the discharge operation on the built-in battery; or, For any built-in battery of the external device, if the built-in battery meets the discharge condition, a discharge operation is performed on the built-in battery, including: For any built-in battery of the external device, if the voltage of the built-in battery is greater than the voltage of any other built-in battery, performing a discharge operation on the built-in battery; and If the built-in battery meets the stop-discharging condition, stopping the discharge operation on the built-in battery includes: If the voltage of any other built-in battery is greater than the voltage of the built-in battery, then the discharge operation of the built-in battery is stopped; or, For any built-in battery of the external device, if the built-in battery meets the discharge condition, a discharge operation is performed on the built-in battery, including: For any built-in battery of the external device, if the current discharge sequence of the built-in battery is a preset discharge sequence position, a discharge operation is performed on the built-in battery; and If the built-in battery meets the stop-discharging condition, stopping the discharge operation on the built-in battery includes: If the voltage of the built-in battery is lower than the second preset voltage lower limit, the discharge operation of the built-in battery is stopped.

9. The method according to any one of claims 7-8, characterized in that: The method further comprises: If the external device is also powered by an external battery, comparing the voltage of the external battery with a preset discharge protection voltage; Wherein, if the voltage of the external battery is greater than the preset discharge protection voltage, a discharge operation is performed on the external battery; If the voltage of the external battery is not greater than the preset discharge protection voltage, then for any built-in battery of the external device, if the built-in battery meets the discharge condition, a discharge operation is performed on the built-in battery.

10. A system for external use, characterized in that: include: An external device, wherein the external device has a built-in solar panel; An external solar panel, wherein the external solar panel is connected to the external device; Wherein, the external device performs charging operation through the built-in solar panel and / or the external solar panel to run the method according to any one of claims 1-9.

11. An external device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 9 is executed.

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