Battery selection method for battery exchange and battery energy station thereof
By receiving battery exchange requests at the battery power station, obtaining the state of charge, and performing selection operations, the system selects suitable battery packs or individual batteries, thus solving the optimization problem of battery charging and exchange management, improving the ease of use of electric vehicles, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KWANG YANG MOTOR LTD
- Filing Date
- 2024-11-07
- Publication Date
- 2026-05-12
AI Technical Summary
How to effectively manage battery charging and swapping in battery energy stations, especially during peak and off-peak hours and under the different demands of electric vehicles, to optimize battery selection and swapping, thereby improving the ease of use of electric vehicles and reducing costs.
By receiving battery exchange requests, the system obtains the battery's state of charge (SOC), sorts and selects batteries based on their SOC, chooses suitable battery packs or individual batteries to meet the requirements, and controls the battery storage system and energy modules through the processing unit to manage battery exchange and charging.
It enables efficient selection and swapping of batteries under different needs, improves the ease of use of electric vehicles, optimizes the management of battery power stations, and reduces operating costs.
Smart Images
Figure CN122008933A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a battery selection method for battery swapping and a battery power station thereof, and particularly to a method and a battery power station for selecting and swapping batteries based on battery quantity requirements, battery state of charge (SOC), and the current state of charge of the batteries in the battery power station. Background Technology
[0002] In recent years, with rising environmental awareness and advancements in electric vehicle technology, developing electric vehicles to replace traditional vehicles powered by fossil fuels has gradually become a key objective in the automotive industry, leading to the increasing popularity of electric vehicles. To improve the range and user willingness of electric vehicles, many countries and cities have begun planning to install charging stations and battery power stations in public places to provide charging or battery swapping services for electric vehicles and / or electric motorcycles, making the use of electric vehicles more convenient.
[0003] The charging or battery requirements during peak and off-peak hours may differ for different electric vehicles. For example, the battery demand for electric motorcycles is higher during peak hours than during off-peak hours. During peak hours, battery power stations need to charge the batteries at high speeds to quickly bring them to full charge. However, during off-peak hours, because battery demand is lower, battery power stations can charge the batteries slowly to meet specific battery needs while saving costs. Furthermore, different electric vehicles may also have different battery quantity requirements.
[0004] On the other hand, since battery charging takes time, electric motorcycle users often resort to battery swapping during busy commuting hours. Battery swapping is generally a significant cost for battery manufacturers, and rechargeable batteries have a limited lifespan. Therefore, properly managing the charging and swapping of batteries in battery stations has become a pressing issue for the industry. Summary of the Invention
[0005] In view of this, the present invention provides a battery selection method for battery swapping and a battery power station thereof.
[0006] This invention discloses a battery selection method for battery swapping, applicable to a battery power station for storing and charging multiple batteries. First, a battery swapping request is received. Next, the state of charge (SOC) of each battery in the corresponding battery power station is obtained, and the batteries are sorted according to their SOC to become multiple candidate batteries. Corresponding to the battery swapping request, a first selection operation is performed, wherein the first selection operation determines whether there are multiple first candidate batteries with the second highest SOC among the candidate batteries, wherein the SOC of each first candidate battery is the same. When a first candidate battery exists, it is selected to become a candidate battery group, and this candidate battery group is provided according to the battery swapping request. When a first candidate battery does not exist, it is determined whether the difference between the SOC of a second candidate battery and the SOC of a third candidate battery is less than or equal to a first predetermined threshold or ratio, wherein the second candidate battery has the highest SOC among the candidate batteries and the third candidate battery has the second highest SOC among the candidate batteries. When the difference between the state of charge (SOC) of the corresponding second candidate battery and the state of charge (SOC) of the corresponding third candidate battery is less than or equal to a first predetermined threshold or ratio, the second and third candidate batteries are selected to form a candidate battery pack, and this candidate battery pack is provided in accordance with the battery exchange request. When the difference between the SOC of the corresponding second candidate battery and the state of charge (SOC) of the corresponding third candidate battery is not less than or equal to the first predetermined threshold or ratio, the second candidate battery is excluded from the candidate battery list, and the first selection operation is re-executed.
[0007] An embodiment of the present invention provides a battery power station comprising a battery storage system including multiple batteries, an energy module for charging the batteries, and a processing unit. The processing unit is coupled to the battery storage system and the energy module and receives a battery exchange request. The processing unit obtains the state of charge (SOC) of each battery in the corresponding battery power station and sorts the batteries according to their SOC to form multiple candidate batteries. In response to the battery exchange request, the processing unit performs a first selection operation. In the first selection operation, the processing unit determines whether there are multiple first candidate batteries with the second highest SOC among the candidate batteries, wherein each first candidate battery has the same SOC. When a first candidate battery exists, the processing unit selects the first candidate battery to form a candidate battery group and provides this candidate battery group in response to the battery exchange request. When the first candidate battery is not available, the processing unit determines whether the difference between the state of charge (SOC) of a second candidate battery and the SOC of a third candidate battery is less than or equal to a first predetermined threshold or ratio, wherein the second candidate battery has the highest SOC among the candidate batteries and the third candidate battery has the second highest SOC among the candidate batteries. When the difference between the SOC of the second and third candidate batteries is less than or equal to the first predetermined threshold or ratio, the processing unit selects the second and third candidate batteries to form a candidate battery pack and provides this candidate battery pack according to the battery exchange request. When the difference between the SOC of the second and third candidate batteries is not less than or equal to the first predetermined threshold or ratio, the processing unit excludes the second candidate battery from the candidate battery list and re-executes the first selection operation.
[0008] In some embodiments, a battery quantity requirement can be obtained based on the battery exchange request. When the battery quantity requirement is 2 batteries, a first selection operation is performed. When the battery quantity requirement is 1 battery, a second selection operation is performed, wherein the second selection operation selects a fourth candidate battery with the highest state of charge from the candidate batteries and provides this fourth candidate battery in accordance with the battery exchange request.
[0009] In some embodiments, for each battery, it is determined whether the state of charge of the corresponding battery is higher than a second predetermined threshold or ratio, and when the state of charge of the corresponding battery is not higher than the second predetermined threshold or ratio, the battery is excluded from the first selected operation.
[0010] In some embodiments, a specific battery can be received via a battery slot to generate the battery exchange request. The processing unit reads the specific battery to obtain its state of charge (SOC), and for each battery, determines whether its SOC is higher than a predetermined value or ratio for that specific battery. If the SOC of a battery is not higher than the predetermined value or ratio for that specific battery, the battery is excluded from the first selected operation.
[0011] In some embodiments, in response to the battery exchange request, the candidate battery pack is provided via at least two specific battery slots, and it is determined whether an abnormal state occurs in at least one of the specific battery slots when providing the candidate battery pack. When an abnormal state occurs in at least one of the specific battery slots when providing the candidate battery pack, the candidate battery located in the specific battery slot where the abnormal state occurred is excluded, and the first selection operation is re-executed, in which the determination of the corresponding first predetermined threshold value or ratio is cancelled.
[0012] The method described above can exist in the form of program code. When the program code is loaded into and executed by a machine, the machine becomes an apparatus for implementing the present invention.
[0013] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description
[0014] Figure 1 This is a schematic diagram illustrating a battery power station according to an embodiment of the present invention.
[0015] Figure 2 This is a schematic diagram illustrating a battery power station connected to a remote server via a network according to another embodiment of the present invention.
[0016] Figure 3 The flowchart illustrates a battery selection method for battery swapping according to an embodiment of the present invention.
[0017] Figure 4 A flowchart is shown to illustrate the first selected operation according to an embodiment of the present invention.
[0018] Figure 5 The flowchart illustrates a battery selection method for battery swapping according to another embodiment of the present invention.
[0019] Figure 6 A flowchart is shown to illustrate a second selected operation according to an embodiment of the present invention.
[0020] Figure 7 The flowchart illustrates a battery selection method for battery swapping according to another embodiment of the present invention.
[0021] Figure 8 The flowchart illustrates a battery selection method for battery swapping according to another embodiment of the present invention.
[0022] List of reference numerals
[0023] 100: Battery Power Station
[0024] 110: Battery Storage System
[0025] 112: Battery
[0026] 120: Energy Module
[0027] 130: Network Connection Unit
[0028] 140: Processing Unit
[0029] 200: Remote Server
[0030] 210: Internet
[0031] S310, S320, S330, S340, S350: Steps
[0032] S410, S420, S430, S440, S450: Steps
[0033] S510, S520, S530: Steps
[0034] S610, S620: Steps
[0035] S710, S720, S730, S740, S750: Steps
[0036] S810, S820, S830: Steps. Detailed Implementation
[0037] Figure 1This diagram illustrates a battery power station according to an embodiment of the present invention. The battery power station 100 according to an embodiment of the present invention can be applied to an electronic device. As shown, the battery power station 100 includes at least a battery storage system 110, an energy module 120, a network connection unit 130, and a processing unit 140. The battery storage system 110 has a specific mechanism (not shown) for storing multiple batteries 112 and selectively locking or releasing these batteries. Note that the battery storage system 110 may have multiple battery slots to store the batteries 112. The battery power station 100 can provide batteries to at least one electrical device, such as an electric motorcycle or electric vehicle. The energy module 120 can be electrically coupled to a power grid (not shown) to obtain a total current to supply power to the battery power station and charge the batteries 112 according to signals from the processing unit 140. It must be noted that the battery storage system 110 may include a charging module for each battery 112, and the charging module has an upper current limit and / or a lower current limit to charge the corresponding battery. It is worth noting that in some embodiments, the energy module 120 can actively detect the total current supplied by the grid to the battery power station 100 and notify the processing unit 140 of the corresponding total current information. The network connection unit 130 can be connected to a network, thereby enabling the battery power station 100 to have network connectivity. In some embodiments, the network can be a wired network, a telecommunications network, or a wireless network, such as a Wi-Fi network. The processing unit 140 can control the operation of all hardware and software in the battery power station 100 and execute the battery exchange method based on battery state of charge of this invention, the details of which will be described later.
[0038] Figure 2 This illustrates a battery power station connected to a remote server via a network according to another embodiment of the present invention. Similarly, the battery power station 100 according to an embodiment of the present invention can be applied to an electronic device having multiple batteries that can supply power to at least one power-consuming device, such as an electric motorcycle or electric vehicle. The battery power station 100 may have, for example... Figure 1Similar components will not be described in detail here. Battery power station 100 can connect to a remote server 200 via a network 210, such as a wired network, telecommunications network, or wireless network, such as Wi-Fi, using network connection unit 130. It should be noted that in some embodiments, remote server 200 can simultaneously manage other battery power stations located in the same or different locations. As mentioned earlier, the energy module 120 of battery power station 100 can actively detect the total current supplied to battery power station 100 by the power grid and notify processing unit 140 of the corresponding total current information. In some embodiments, remote server 200 can also notify battery power station 100 of the corresponding total current information via network 210. In some embodiments, remote server 200 can also transmit relevant information for different time periods, such as peak hours and off-peak hours, to battery power station 100 via network 210. In some embodiments, the remote server 200 may also transmit information about relevant users to the battery power station 100 via the network 210. The battery power station 100 can then perform relevant operations based on the received information.
[0039] Figure 3 This invention illustrates a battery selection method for battery swapping according to an embodiment of the present invention. The battery selection method for battery swapping according to an embodiment of the present invention is applicable to an electronic device for storing and charging multiple batteries, such as… Figure 1 Battery power station.
[0040] First, as in step S310, a battery exchange request is received, and a battery quantity requirement is obtained based on the battery exchange request. It is worth noting that in some embodiments, the battery storage system of the battery power station may have at least one battery slot to receive a specific battery placed by the user, thus generating this battery exchange request. In some embodiments, the battery exchange request may include a model of the corresponding electric vehicle and / or the number of batteries required for that model. Next, as in step S320, a state of charge (SOC) of each battery in the corresponding battery power station is obtained, and the batteries are sorted according to their SOC to become multiple candidate batteries. It is important to note that the battery power station can charge the batteries within it. In some embodiments, the SOC of the corresponding battery can be obtained from a Battery Management System (BMS) within the battery. It is worth noting that in some embodiments, the SOC may represent the battery's charge level. Next, as in step S330, it is determined whether the battery quantity requirement is 1 battery or 2 batteries. When the battery quantity requirement is 2 batteries, as in step S340, a first selection operation is performed. When the battery quantity requirement is 1 battery, as in step S350, a second selection operation is performed. It should be noted that the first and second selection operations will be described separately later.
[0041] Figure 4 This displays a first selected operation according to an embodiment of the present invention. The first selected operation according to an embodiment of the present invention is applicable to an electronic device for housing and charging multiple batteries, such as... Figure 1 The battery power station. It's important to note that the batteries within the power station are sorted according to their state of charge (SOC) to become multiple candidate batteries.
[0042] First, as in step S410, it is determined whether there are multiple first candidate batteries with the second highest state of charge (SOC), wherein each of the first candidate batteries has the same SOC. Note that in some embodiments, the number of first candidate batteries may be two; in other words, there are two first candidate batteries with the second highest SOC among the candidate batteries. When the first candidate batteries exist (yes in step S410), as in step S420, these first candidate batteries are selected to form a candidate battery group, and this candidate battery group is provided in accordance with the battery exchange request. When the first candidate batteries do not exist (no in step S410), as in step S430, it is determined whether the difference between the SOC of a second candidate battery and the SOC of a third candidate battery is less than or equal to a first predetermined threshold or ratio, wherein the second candidate battery has the highest SOC among the candidate batteries and the third candidate battery has the second highest SOC among the candidate batteries. In some embodiments, the first predetermined threshold or ratio may be 20%. In one example, the state of charge (SOC) difference between the second candidate battery with the highest SOC and the third candidate battery with the second highest SOC is less than or equal to 20%. If the SOC difference between the corresponding second candidate battery and the corresponding third candidate battery is less than or equal to a first predetermined threshold or ratio (Yes in step S430), as in step S440, the second and third candidate batteries are selected to form a candidate battery pack, and this candidate battery pack is provided according to the battery exchange request. If the SOC difference between the corresponding second candidate battery and the corresponding third candidate battery is not less than or equal to the first predetermined threshold or ratio (No in step S430), as in step S450, the second candidate battery is excluded from the candidate batteries, and the process returns to step S410, where the first selection operation is re-executed for the candidate batteries after excluding the second candidate battery.
[0043] Figure 5 This invention illustrates a battery selection method for battery swapping according to another embodiment of the present invention. In this embodiment, the battery slot status of the selected battery is monitored to perform subsequent management operations in the event of an abnormal state.
[0044] First, as in step S510, in response to the battery exchange request, a candidate battery pack containing the selected replacement battery is provided via at least two specific battery slots. As in step S520, it is determined whether an abnormal state occurs when at least one of the specific battery slots is provided with the candidate battery pack. If no abnormal state occurs when at least one of the specific battery slots is provided with the candidate battery pack (No in step S520), the process ends. If an abnormal state occurs when at least one of the specific battery slots is provided with the candidate battery pack (Yes in step S520), as in step S530, the candidate battery located in the specific battery slot where the abnormal state occurred is excluded, and the first selection operation is re-executed, in which the determination of the corresponding first predetermined threshold value or ratio is cancelled.
[0045] Figure 6 This displays a second selected operation according to an embodiment of the present invention. The second selected operation according to an embodiment of the present invention is applicable to an electronic device for storing and charging multiple batteries, such as... Figure 1 The battery power station. It should be noted that the batteries within the battery power station are sorted according to their state of charge (SOC) to become multiple candidate batteries. First, as in step S610, a fourth candidate battery with the highest SOC is selected from the candidate batteries, and as in step S620, this fourth candidate battery is provided according to the battery exchange request.
[0046] Figure 7 This invention illustrates a battery selection method for battery swapping according to another embodiment of the present invention. The battery selection method for battery swapping according to an embodiment of the present invention is applicable to an electronic device for storing and charging multiple batteries, such as… Figure 1 The battery power station. In this embodiment, the state of charge (SOC) of the selected battery must be greater than that of the user's specific battery.
[0047] First, as in step S710, a specific battery is received via a battery slot in the battery power station to generate a battery exchange request. As in step S720, this specific battery is read to obtain its state of charge (SOC). Next, as in step S730, for each battery, it is determined whether the SOC of that battery is higher than a predetermined value or ratio, such as 20% of the SOC of the specific battery. It should be noted that the aforementioned predetermined value or ratio is merely an example in this case, and the invention is not limited thereto. When the SOC of the corresponding battery is higher than the predetermined value or ratio of the SOC of the specific battery (Yes in step S740), the process ends. In other words, when the SOC of the corresponding battery is higher than the predetermined value or ratio of the SOC of the specific battery, this battery is selected as a subsequent battery. When the SOC of the corresponding battery is not higher than the predetermined value or ratio of the SOC of the specific battery (No in step S740), as in step S750, the battery is excluded from the first selection process.
[0048] Figure 8 This invention illustrates a battery selection method for battery swapping according to another embodiment of the present invention. The battery selection method for battery swapping according to an embodiment of the present invention is applicable to an electronic device for storing and charging multiple batteries, such as… Figure 1 The battery power station. In this embodiment, batteries can be pre-screened based on their state of charge / capacity before the selected operation.
[0049] First, as in step S810, for each battery, it is determined whether the state of charge (SCC) of the corresponding battery is higher than a predetermined threshold or ratio. Note that the predetermined threshold and ratio can be set according to different applications and requirements. For example, the predetermined threshold ratio can be 60% of the battery's maximum saturated capacity. It should be noted that the aforementioned predetermined threshold ratio is only an example in this case, and the invention is not limited thereto. When the battery capacity of the corresponding battery is higher than the predetermined threshold or ratio (yes in step S820), the process ends. In other words, when the battery capacity of the corresponding battery is higher than the predetermined threshold or ratio, this battery is selected as a candidate battery. When the SCC of the corresponding battery is not higher than the predetermined threshold or ratio (no in step S820), as in step S830, the battery is excluded from the battery selection process.
[0050] Therefore, the battery selection method of the battery power station and its battery exchange in this case can select batteries for exchange based on the battery quantity requirement, the battery state of charge, and the current state of charge of the batteries in the battery power station, thereby increasing user convenience while meeting the battery swapping needs.
[0051] The method, or a specific form or part thereof, of the present invention may exist in the form of program code. The program code may be contained in physical media, such as floppy disks, optical discs, hard disks, or any other machine-readable (e.g., computer-readable) storage media, or may be a computer program product, not limited to an external form. When the program code is loaded and executed by a machine, such as a computer, that machine becomes an apparatus for participating in the present invention. The program code may also be transmitted via transmission media, such as wires or cables, optical fibers, or any transmission method. When the program code is received, loaded, and executed by a machine, such as a computer, that machine becomes an apparatus for participating in the present invention. When implemented in a general-purpose processing unit, the program code, in conjunction with the processing unit, provides a unique apparatus that operates similarly to an application-specific logic circuit.
[0052] Although the present invention has been disclosed with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be defined by the claims.
Claims
1. A battery selection method for battery swapping, characterized in that, A battery power station suitable for storing and charging multiple batteries includes the following steps: Receive a battery exchange request; Obtain a state of charge (SOC) for each battery in the corresponding battery power station, and sort the batteries according to the SOC to become multiple candidate batteries; as well as In response to the battery swapping request, a first selection operation is performed, wherein the first selection operation includes the following steps: Determine whether there are multiple first candidate batteries among the candidate batteries that have the second highest state of charge, wherein the state of charge of each corresponding first candidate battery is the same; When the first candidate battery exists, the first candidate battery is selected to become a candidate battery pack, and the candidate battery pack is provided in accordance with the battery exchange request; When the first candidate battery is not present, determine whether the difference between the state of charge of a second candidate battery and the state of charge of a third candidate battery is less than or equal to a first predetermined threshold or ratio. The second candidate battery has the highest state of charge among the candidate batteries and the third candidate battery has the second highest state of charge among the candidate batteries; When the difference between the state of charge of the corresponding second candidate battery and the state of charge of the corresponding third candidate battery is less than or equal to the first predetermined threshold or ratio, the second candidate battery and the third candidate battery are selected to form a candidate battery pack, and the candidate battery pack is provided in accordance with the battery exchange request. as well as When the difference between the state of charge of the corresponding second candidate battery and the state of charge of the corresponding third candidate battery is not less than or equal to the first predetermined threshold or ratio, the second candidate battery is excluded from the list of candidate batteries, and the first selection operation is re-executed.
2. The battery selection method for battery swapping according to claim 1, characterized in that, It also includes the following steps: A battery quantity requirement is obtained based on the battery exchange requirements; When the required number of batteries is 2, execute the first selected job; as well as When the battery quantity requirement is 1 battery, a second selection operation is performed, wherein the second selection operation includes the following steps: A fourth candidate battery with the highest state of charge is selected from the candidate batteries. as well as The fourth candidate battery is provided in accordance with the battery exchange requirement.
3. The battery selection method for battery swapping according to claim 1, characterized in that, It also includes the following steps: For each of the batteries, determine whether the state of charge of the corresponding battery is higher than a second predetermined threshold or ratio; and When the state of charge of the corresponding battery is not higher than the second predetermined threshold or ratio, the battery is excluded from the first selected operation.
4. The battery selection method for battery swapping according to claim 1, characterized in that, It also includes the following steps: The battery exchange request is generated by receiving a specific battery through a battery slot in the battery power station. Read the specific battery to obtain the state of charge of the corresponding specific battery; For each of the batteries, determine whether the state of charge of the corresponding battery is higher than a predetermined value or ratio of the state of charge of the corresponding specific battery; as well as When the state of charge of the corresponding battery is not higher than the predetermined value or ratio of the state of charge of the corresponding specific battery, the battery is excluded from the first selected operation.
5. The battery selection method for battery swapping according to claim 1, characterized in that, It also includes the following steps: In accordance with the battery swapping requirements, the candidate battery pack is provided by at least two specific battery slots of the battery power station; Determine whether an abnormal state occurs in at least one of the specific battery slots when the candidate battery pack is provided; as well as When at least one of the specific battery slots experiences the abnormal state while providing the candidate battery pack, the candidate battery located in the specific battery slot where the abnormal state occurred is excluded, and the first selection operation is re-executed, and the judgment of the corresponding first predetermined threshold value or ratio is cancelled in the first selection operation.
6. A battery power station, characterized in that, include: A battery storage system, comprising multiple batteries; An energy module for charging the battery; as well as A processing unit, coupled to the battery storage system and the energy module, receives a battery exchange request, obtains the state of charge (SOC) of each battery, and sorts the batteries according to their SOC to form multiple candidate batteries. In response to the battery exchange request, a first selection operation is performed. In this first selection operation, it is determined whether there are multiple first candidate batteries with the second highest SOC among the candidate batteries, wherein the SOC of each first candidate battery is the same. When a first candidate battery exists, it is selected to form a candidate battery group, and the candidate battery group is provided according to the battery exchange request. When a first candidate battery does not exist, it determines the SOC of a second candidate battery and the SOC of a third candidate battery among the candidate batteries. The difference in the state of charge (SOC) of the candidate batteries is less than or equal to a first predetermined threshold or ratio, wherein the second candidate battery has the highest SOC among the candidate batteries and the third candidate battery has the second highest SOC among the candidate batteries. When the difference in the SOC of the corresponding second candidate battery and the corresponding third candidate battery is less than or equal to the first predetermined threshold or ratio, the second candidate battery and the third candidate battery are selected to form a candidate battery group, and the candidate battery group is provided in accordance with the battery exchange request. When the difference in the SOC of the corresponding second candidate battery and the corresponding third candidate battery is not less than or equal to the first predetermined threshold or ratio, the second candidate battery is excluded from the candidate batteries, and the first selection operation is re-executed.
7. The battery power station according to claim 6, characterized in that, The processing unit also obtains a battery quantity requirement based on the battery exchange requirement. When the battery quantity requirement is 2 batteries, the first selection operation is executed, and when the battery quantity requirement is 1 battery, a second selection operation is executed. The second selection operation is to select a fourth candidate battery with the highest state of charge from the candidate batteries and provide the fourth candidate battery in accordance with the battery exchange requirement.
8. The battery power station according to claim 6, characterized in that, The processing unit further determines, for each of the batteries, whether the state of charge of the corresponding battery is higher than a second predetermined threshold or ratio, and excludes the battery from the first selected operation when the state of charge of the corresponding battery is not higher than the second predetermined threshold or ratio.
9. The battery power station according to claim 6, characterized in that, It also includes a battery slot for receiving a specific battery to generate the battery exchange request, and the processing unit further reads the specific battery to obtain the state of charge of the corresponding specific battery. For each battery, it determines whether the state of charge of the corresponding battery is higher than a predetermined value or ratio of the state of charge of the corresponding specific battery, and when the state of charge of the corresponding battery is not higher than the predetermined value or ratio of the state of charge of the corresponding specific battery, the battery is excluded from the first selected operation.
10. The battery power station according to claim 6, characterized in that, It also includes at least two specific battery slots, and the processing unit provides the candidate battery pack through the at least two specific battery slots in response to the battery exchange request. It determines whether an abnormal state occurs when at least one of the specific battery slots is provided with the candidate battery pack. When the abnormal state occurs when at least one of the specific battery slots is provided with the candidate battery pack, the candidate battery located in the specific battery slot where the abnormal state occurred is excluded, and the first selection operation is re-executed. In the first selection operation, the determination of the corresponding first predetermined threshold value or ratio is cancelled.