Battery management system, battery management method, and terminal device

Abstract

[Problem] To enable increased user convenience by guiding the user to a battery station where the user can replace a battery and outputting an alert for prompting the user to replace the battery in a manner tailored to the user's preferences and situation. [Solution] A management server 4 acquires profile information (setting information) related to a user demand for battery replacement in response to a user operation performed on a user terminal 5, analyzes history information related to the conditions of past battery replacement at battery stations, acquires an indicator of the degree of an non-lendable state for each battery station, and, when an event related to battery replacement, specifically an event related to guiding the user to a battery station where the user can replace a battery or issuing an alert prompting the user to replace the battery occurs, refers to the profile information and the indicator to display, on the user terminal, a station guidance screen or an alert screen as a notification screen related to the event.

Description

Technical Field

[0001] The present disclosure relates to a battery management system and a battery management method for managing a battery station and a battery device, and a terminal device possessed by a user, in a battery replacement service in which a user such as an electric vehicle replaces a battery device at a battery station.

Background Art

[0002] In recent years, electric vehicles such as electric motorcycles have attracted attention from the perspective of solving air pollution caused by exhaust gases and fuel cost problems. In such electric vehicles, although the cruising range has been extended by improving the performance of the battery device, there is an inconvenience that charging of the battery device becomes an obstacle and continuous running for a long time is not possible.

[0003] Therefore, in order to solve such inconveniences, conventionally, an electric vehicle is equipped with a detachable battery device so that at a battery station, a battery device with a low remaining amount can be replaced with a fully charged battery device to realize continuous running for a long time. A battery replacement service is known (see Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Now, the technology disclosed in Patent Document 1 estimates the range in which the user should replace the battery based on real-time information such as the remaining capacity of the battery device and the direction of travel of the electric vehicle, and controls the charging of the battery device at the battery station. Furthermore, this technology guides the user to a battery station near their current location.

[0006] On the other hand, the technology disclosed in Patent Document 2 informs the user whether there are any fully charged, available battery devices at the battery station, and if there are no fully charged, available battery devices, it obtains the waiting time until a fully charged and available battery device is prepared. In particular, this technology obtains the waiting time based on past statistical information. Furthermore, this technology guides the user to a battery station suitable for them based on the time required to reach the battery station and the waiting time at the battery station.

[0007] However, conventional technology unilaterally guides users to battery stations deemed suitable by the system, which is insufficient when considering user convenience. For example, when guiding users to battery stations, users may want to be directed to stations where they can replace their batteries according to their preferences and circumstances. Also, when alerts prompting users to replace their batteries are output on the user terminal, users may want the alerts to be controlled in a way that reflects their preferences and circumstances. However, conventional technology has not taken any of these requests into consideration.

[0008] Therefore, the main purpose of this disclosure is to provide a battery management system, a battery management method, and a terminal device that enhance user convenience by providing guidance to battery stations where users can replace their batteries, and outputting alerts prompting users to replace their batteries, in a manner that suits the user's preferences and convenience. [Means for solving the problem]

[0009] The battery management system of this disclosure comprises: a plurality of battery exchange devices located at battery stations that receive and charge battery devices returned by users, and lend charged battery devices to users in exchange for the returned battery devices; a server device connected to the plurality of battery exchange devices via a network to manage the battery exchange status at the battery exchange devices; and a terminal device owned by the user and connected to the server device via a network. The server device analyzes historical information regarding past battery exchange status at each battery station to obtain an index representing the degree of unavailability for lending at each battery station, and when a battery exchange event occurs, it refers to setting information regarding the user's request for battery exchange and the index to display a notification screen regarding the event on the terminal device.

[0010] Furthermore, the battery management method disclosed herein is a battery management method for a server device that manages battery stations where users replace battery devices and battery devices, and is configured to analyze historical information regarding past battery replacement status at each battery station to obtain an index representing the degree of unavailability for each battery station, and when a battery replacement event occurs, to refer to setting information regarding the user's request for battery replacement and the index, and to display a notification screen regarding the event on the terminal device. [Effects of the Invention]

[0012] According to this disclosure, user convenience can be enhanced because guidance to battery stations where users can replace their batteries, and alerts prompting users to replace their batteries, are delivered in a manner that suits the user's preferences and convenience. Furthermore, by referring to an indicator that shows the degree of unavailability at each battery station, notification screens regarding events can be displayed appropriately. [Brief explanation of the drawing]

[0013] [Figure 1] Overall configuration diagram of the battery sharing system according to this embodiment [Figure 2] Block diagram showing the schematic configurations of the battery exchanger 3, management server 4, and user terminal 5 [Figure 3] Explanatory diagram showing the outline of the processing performed by the management server 4 [Figure 4] Explanatory diagram showing the content of the profile information for each user [Figure 5] Explanatory diagram showing the usage status confirmation screen displayed on the management terminal 6 [Figure 6] Explanatory diagram showing the login screen and start screen displayed on the user terminal 5 [Figure 7] Explanatory diagram showing the profile setting screen and profile registration completion screen displayed on the user terminal 5 [Figure 8] Explanatory diagram showing the detailed search screen displayed on the user terminal 5 [Figure 9] Explanatory diagram showing the station guidance screen displayed on the user terminal 5 [Figure 10] Explanatory diagram showing the station guidance screen displayed on the user terminal 5 [Figure 11] Explanatory diagram showing the reservation screen and reservation completion screen displayed on the user terminal 5 [Figure 12] Explanatory diagram showing the alert screen displayed on the user terminal 5 [Figure 13] Sequence diagram showing the operation procedures of the user terminal 5 and the management server 4 at the time of login and profile setting [Figure 14] Sequence diagram showing the operation procedures of the user terminal 5 and the management server 4 at the time of automatic search selection and detailed search selection [Figure 15] Sequence diagram showing the operation procedures of the user terminal 5 and the management server 4 at the time of reservation

Mode for Carrying Out the Invention

[0014] A first invention made to solve the above problems is a battery management system having a plurality of battery exchange devices arranged at a battery station, accommodating and charging a battery device returned by a user, and lending out a charged battery device in exchange for the returned battery device to the user, a server device connected to the plurality of battery exchange devices via a network and managing the exchange status of the battery device at the battery exchange device, and a terminal device owned by the user and connected to the server device via a network. The server device analyzes history information regarding the past battery exchange status at each battery station, obtains an index representing the degree of the unavailable state for lending for each battery station, and when an event related to battery exchange occurs, refers to setting information regarding the user's desire for battery exchange and the index, and displays a notification screen regarding the event on the terminal device.

[0015] According to this, since the guidance of the battery station where the user performs battery exchange and the output of an alert prompting the user to perform battery exchange are implemented in a method according to the user's preference and convenience, the convenience of the user can be improved. Furthermore, since an index representing the degree of the unavailable state for lending at each battery station is referred to, a notification screen regarding the event can be appropriately displayed.

[0016] In addition, a second invention is configured such that the server device obtains, for each battery station, the appearance time of the unavailable state for lending per unit time as the index.

[0017] According to this, the administrator can easily grasp the degree of the unavailable state for lending at each battery station. The appearance time of the unavailable state for lending per unit time can be processed as corresponding to the waiting time for the user to wait at the battery station until a battery device that has completed charging and is available for lending can be prepared.

[0018] Furthermore, the third invention is configured such that, when the server device guides the user to a battery station as an event related to battery replacement, it displays the notification screen on the terminal device, which superimposes on a map the battery stations capable of performing battery replacement that meet the user's requirements.

[0019] According to this, it becomes possible to clearly guide users to battery stations where they can have their batteries replaced in a way that meets their needs.

[0020] Furthermore, the fourth invention is configured such that the server device acquires information regarding battery replacement reservations in response to user operations on the notification screen displayed on the terminal device.

[0021] According to this, it will be possible to accept reservations from users for battery replacement.

[0022] Furthermore, the fifth invention is configured such that the server device acquires and stores the setting information relating to at least one item of the following: exchange timing, waiting time, presence or absence of alerts, and display settings of the notification screen, in response to user operations on the terminal device.

[0023] According to this, it is possible to obtain setting information regarding user preferences concerning replacement timing, waiting time, whether or not to include alerts, and the display settings of the notification screen.

[0024] Furthermore, the sixth invention relates to a battery management method for a server device, which includes a battery station where a user replaces a battery device and a battery device management method, wherein the method analyzes historical information regarding the status of past battery replacements at each battery station to obtain an index representing the degree of unavailability for each battery station, and when a battery replacement event occurs, it refers to the setting information regarding the user's request for battery replacement and the index to display a notification screen regarding the event on the terminal device.

[0025] According to this, similar to the first invention, guidance to battery stations where users can replace batteries, and the output of alerts prompting users to replace batteries, are carried out in a manner that suits the user's preferences and convenience, thereby improving user convenience. Furthermore, by referring to an indicator that shows the degree of unavailability at each battery station, notification screens regarding events can be displayed appropriately.

[0028] The embodiments of this disclosure will be described below with reference to the drawings.

[0029] Figure 1 is an overall diagram of the battery sharing system according to this embodiment.

[0030] This battery sharing system provides a service (battery exchange service) that allows multiple users to share a battery pack 2 (battery device) installed in an electric vehicle 1 such as an electric motorcycle. It comprises a battery exchange machine 3 (battery exchange device), a management server 4 (server device), a user terminal 5 (terminal device), a management terminal 6, and a maintenance terminal 7.

[0031] The battery replacement unit 3, management server 4, user terminal 5, management terminal 6, and maintenance terminal 7 are connected via a network such as the Internet. The battery replacement unit 3 and user terminal 5 are connected via wireless communication such as a mobile communication network or Wi-Fi.

[0032] The electric vehicle 1 is equipped with a battery pack 2 and runs on the power of the battery pack 2. In the example shown in Figure 1, the electric vehicle 1 is an electric motorcycle, but it could also be a four-wheeled automobile. Alternatively, it could be a mobility device that is not intended for road use, such as an electric wheelchair, electric cart, or a passenger cart used in theme parks or golf courses.

[0033] The battery exchange machine 3 receives and charges the battery pack 2 returned by the user, and also lends the user a fully charged battery pack 2 in exchange for the returned battery pack 2. This battery exchange machine 3 is installed at battery stations attached to facilities (stores) such as convenience stores and gas stations. In addition, multiple battery exchange machines 3 are installed at a single battery station.

[0034] The management server 4 registers individuals who subscribe to the battery replacement service and use battery pack 2 as users (members), and manages the relationship between battery pack 2 and the users to whom it is borrowed. The management server 4 also manages the replacement status of battery pack 2 at the battery replacement machine 3. Furthermore, the management server 4 monitors the status of the battery replacement machine 3 (online or not) and the status of the battery pack 2 housed in the battery replacement machine 3 (charged or not), and distributes status information of the battery replacement machine 3 and battery pack 2 to the management terminal 6 and maintenance terminal 7. In addition, the management server 4 distributes information regarding the operating status of the battery station to the user terminal 5.

[0035] User terminal 5 is a smartphone or tablet device, and is owned by the user of the electric vehicle 1. This user terminal 5 displays various screens based on information distributed from the management server 4. These screens guide the user to the location and operating status of battery stations, and allow them to make reservations for battery replacements.

[0036] The management terminal 6 is installed in facilities that serve users or in management centers, and is operated by the administrator. The administrator can perform user registration operations using this management terminal 6. Furthermore, the administrator can view information distributed from the management server 4.

[0037] Maintenance terminal 7 is installed in facilities such as dedicated maintenance facilities or stores equipped with battery stations, and is operated by maintenance personnel. On this maintenance terminal 7, maintenance personnel can view information distributed from management server 4.

[0038] In this embodiment, a battery pack 2 mounted on an electric vehicle 1 is used as an example, but the battery mounting device on which the battery pack 2 is mounted is not limited to an electric vehicle 1, and may be, for example, a portable power supply device.

[0039] Next, we will describe the general configuration of the battery replacement unit 3, the management server 4, and the user terminal 5. Figure 2 is a block diagram showing the general configuration of the battery replacement unit 3, the management server 4, and the user terminal 5. Figure 3 is an explanatory diagram showing an overview of the processing performed by the management server 4.

[0040] The battery replacement device 3 includes a sensor 31, a drive unit 32, a charging unit 33, a communication unit 34, an input / output unit 35, a display unit 36, a storage unit 37, and a control unit 38.

[0041] Sensor 31 can be configured, for example, as a motion sensor to detect a person who comes in to have the battery replaced.

[0042] Furthermore, user authentication may be implemented to identify users who have come in for battery replacement. In this case, the user may be identified by facial recognition from the image captured by the camera. Alternatively, the user may be identified by an RFID (Radio Frequency Identifier) ​​tag, a contactless IC card, or by communication with a user terminal 5 equipped with NFC (Near Field Communication) functionality. In addition, the system may detect that a user is attempting to return the battery pack 2 by reading a 2D code attached to the battery pack 2 from the image captured by the camera.

[0043] The drive unit 32, in response to instructions from the control unit 38, drives the opening and closing mechanism of the opening and closing door at the timing of the return and lending of the battery pack 2, and also drives the storage and ejection mechanism to store the returned battery pack 2 and eject the battery pack 2 to be lent to the user.

[0044] The charging unit 33 charges the battery pack 2 via the slot 21 (tray).

[0045] The communications unit 34 communicates with the management server 4 via the network.

[0046] The input / output unit 35 performs information input and output with the battery pack 2. For example, the serial number, alerts, and degradation information of the battery pack 2 are input from the battery pack 2.

[0047] The display unit 36 ​​displays a guidance screen that provides the user with instructions on how to replace the battery pack 2.

[0048] The memory unit 37 stores programs and other data executed by the processor that constitutes the control unit 38.

[0049] The control unit 38 consists of a processor and controls various parts of the battery exchange machine 3. For example, it controls the replacement of the battery pack 2, that is, it controls the drive unit 32 to perform operations such as storing the battery pack 2 returned by the user and lending a fully charged battery pack 2 to the user. In particular, when the sensor 31 detects a user, it starts the battery exchange operation, opens the door, and allows the user to return the battery pack 2.

[0050] Furthermore, the control unit 38 monitors the charge and empty status of the battery packs 2 installed in each slot and reports this information to the management server 4. This allows the management server 4 to manage the charge and empty status of the battery packs 2 in the battery exchange machine 3. The management server 4 then generates a list of battery pack 2 lending order, etc., according to lending rules based on the charge status of the battery packs 2 and sends it to the battery exchange machine 3, enabling the battery exchange machine 3 to perform efficient lending control when a user is exchanging or reserving a battery pack 2. Alternatively, the battery exchange machine 3 may control the lending order of the battery packs 2 according to lending rules based on the charge status of the battery packs 2, independently of the management server 4.

[0051] Here, the electric vehicle 1 is equipped with one or more battery packs 2. The battery exchanger 3 can accommodate multiple (for example, eight) battery packs 2, and if the electric vehicle 1 is equipped with multiple battery packs 2, the user can replace all of them simultaneously. In the examples shown in Figures 1 and 2, the electric vehicle 1 is equipped with two battery packs 2, but it may also be equipped with one or three or more battery packs 2.

[0052] The management server 4 comprises a communication unit 41, a storage unit 42, and a control unit 43.

[0053] The communication unit 41 communicates with the battery exchanger 3, user terminal 5, management terminal 6, and maintenance terminal 7 via the network.

[0054] The memory unit 42 stores programs executed by the processor that constitutes the control unit 43. The memory unit 42 also stores management information such as user registration information and linking information that links the battery pack 2 with the user who borrowed it.

[0055] The control unit 43 comprises a user management unit 51, a station management unit 52, a battery management unit 53, a station information display unit 54, a system management unit 55, a notification management unit 56, a reservation management unit 57, a history analysis unit 58, and a guidance suitability determination unit 59. This control unit 43 is composed of a processor, and each part of the control unit 43 is realized by executing a program stored in the storage unit 42 using the processor.

[0056] The user management unit 51 manages users who use the battery pack 2. For example, when an administrator receives a new registration request from a user, they operate the management terminal 6 to obtain and manage the user's information (user ID, name, address, type of electric vehicle 1 used, etc.) (user registration).

[0057] Furthermore, the user management unit 51 displays a profile setting screen (see Figure 7(A)) on the user terminal 5, which allows the user to input information regarding their requests for battery replacement (such as their preferences and circumstances). The user management unit 51 then acquires and manages profile information (setting information) regarding the user's requests for battery replacement based on the user's actions on the profile setting screen.

[0058] The station management unit 52 manages each battery station and the battery exchange machines 3 installed at each battery station. Specifically, the station management unit 52 collects and manages information regarding the status (operating status, etc.) of the battery exchange machines 3 located at each battery station. The station management unit 52 also collects and manages information regarding the status (charged status, empty status, etc.) of the battery packs 2 housed in the battery exchange machines 3. In addition, information regarding the status of the battery packs 2, such as deterioration status, usage period, and number of replacements, may be collected and managed.

[0059] The battery management unit 53 manages the battery packs 2 housed in the battery exchange machine 3 and the battery packs 2 currently on loan to users.

[0060] The station information display unit 54 presents battery station information to the user. In this embodiment, information regarding a station guidance screen (see Figures 9 and 10) that guides the user to a battery station is generated and distributed to the user terminal 5, causing the station guidance screen to be displayed on the user terminal 5. This station guidance screen displays the location of the battery station and the number of battery packs 2 that can be replaced at the battery station.

[0061] Furthermore, the station information display unit 54 searches for a map of the target area from the overall map of the battery replacement service (map search). In this case, if the user specifies a location in the detailed search, the target area is set with the specified location as the reference position. In the case of an automatic search, or if the user does not specify a location in the detailed search, the target area is set with the current location of the electric vehicle 1 as the reference position.

[0062] Furthermore, the station information display unit 54 acquires information about battery stations that are the target of guidance, that is, battery stations that the guidance suitability determination unit 59 has determined to be capable of battery replacement that meets the user's needs and for which the user should be guided to battery replacement (battery station information acquisition).

[0063] Specifically, the system obtains location information for the battery stations to be guided. In addition, in the case of an automated search or when the user does not specify a date and time in an advanced search, the system uses the current date and time as the reference point to obtain information regarding the current charging status of Battery Pack 2 at the target battery stations, specifically information such as the number of fully charged Battery Pack 2 available for loan.

[0064] The system management unit 55 monitors the system status and presents it to administrators and maintenance personnel. For example, it generates a management screen that displays the system status and distributes it to the management terminal 6 and maintenance terminal 7, causing the management screen to be displayed on the management terminal 6 and maintenance terminal 7. This allows administrators and maintenance personnel to view the system status.

[0065] The notification management unit 56 manages notifications to users. Specifically, it distributes notifications to user terminals 5 regarding the establishment or closure of battery stations, maintenance work performed at battery stations, and notifications that battery replacement reservations cannot be made at battery stations due to network failures, etc.

[0066] Furthermore, the notification management unit 56 determines whether or not predetermined alarm conditions are met (alarm determination), and if the predetermined alarm conditions are met, it issues an alert (battery replacement notification). This alert is issued when specified by the user. In this embodiment, as an alert is issued, an alert screen (see Figure 12) is displayed on the user terminal 5.

[0067] Furthermore, in this embodiment, an alert is issued when it is predicted that there will be no more battery stations that are the target of guidance, i.e., battery stations that the guidance suitability determination unit 59 has determined to be capable of battery replacement that meets the user's needs and for which the user should be guided to battery replacement, within a predetermined time. At this time, the guidance suitability determination unit 59 performs a guidance suitability determination based on the present time, and also performs a guidance suitability determination based on a future time after a predetermined time, and determines whether or not there are any battery stations that are the target of guidance after the predetermined time.

[0068] The reservation management unit 57 manages user battery replacement reservations. Specifically, it accepts battery replacement reservations when a user performs a reservation operation on the user terminal 5. It also cancels battery replacement reservations when a user performs a cancellation operation on the user terminal 5. Furthermore, if a battery replacement is not performed after a predetermined period of time has elapsed since the battery replacement reservation was accepted, the battery replacement reservation is forcibly canceled.

[0069] The history analysis unit 58 analyzes historical information regarding the charging and replacement status of battery packs 2 at each battery station and obtains a sold-out index as an analysis result. This sold-out index evaluates the degree of opportunity loss at each battery station when it was not possible to provide battery replacement services to users, that is, the degree to which a state occurs where there are no fully charged and available battery packs 2 for loan (unavailable for loan).

[0070] In this embodiment, the time spent in an unavailable state per unit of time (e.g., 1 hour) is obtained as the sold-out indicator. This time spent in an unavailable state per unit of time corresponds to the average waiting time a user waits at a battery station until a battery pack 2 that has been fully charged and is ready for rental is available. Therefore, in this embodiment, the time spent in an unavailable state for each time period is processed as the estimated waiting time for each time period. The analysis of historical information is performed for a period specified by the user (e.g., 1 week, 1 month, 1 year).

[0071] On the other hand, the waiting time for users at battery stations can be estimated based on real-time information regarding the current battery charging status at each battery station. Specifically, the remaining time until the battery pack 2 being charged at the battery station is fully charged (charging completion time) can be obtained as the user's waiting time. Therefore, the estimated waiting time may be obtained based on both the waiting time obtained from such real-time information (charging completion time) and the waiting time obtained from historical information (sold-out indicator).

[0072] Specifically, the waiting time obtained from real-time information may be compared with the waiting time obtained from historical information, and the larger value may be adopted as the estimated waiting time. For example, if the waiting time obtained from real-time information is 3 minutes and the waiting time obtained from historical information is 7 minutes, the estimated waiting time may be set to 7 minutes.

[0073] The guidance suitability determination unit 59 determines, based on the user's profile information, whether a battery station is eligible for guidance, that is, whether it is a battery station where battery replacement is possible that meets the user's needs and where the user should be guided to replace the battery.

[0074] Specifically, the system determines whether the battery configuration matches the user's requirements, that is, whether there are enough charged battery packs available for loan for the electric vehicle 1 the user will be using (battery configuration determination). If the system does not match the user's battery configuration, that is, if the required number of battery packs 2 cannot be loaned out, it is determined that the battery station is not suitable for the user.

[0075] In this embodiment, the battery configuration of the electric vehicle 1 is defined as the number of batteries installed, assuming that there is only one type of battery pack 2 used in the battery replacement service. However, multiple types of battery packs 2 (for example, different battery capacities) may be used in the battery replacement service. In this case, the battery configuration will include not only the number of batteries installed but also the types of battery packs 2.

[0076] In this embodiment, it is determined whether or not a battery station is located within the area (drivable area) on which the electric vehicle 1 used by the user can travel (area determination). At this time, the drivable distance of the electric vehicle 1 is obtained based on the allowable remaining capacity of the battery pack 2 based on the replacement timing specified by the user (the lower limit of the remaining capacity that the user can accept), the actual remaining capacity of the battery pack 2 installed in the electric vehicle 1 used by the user, and the energy consumption of the electric vehicle 1 used by the user (drivable distance per unit capacity of the battery pack 2). A circular area with this drivable distance as its radius becomes the drivable area.

[0077] Furthermore, in this embodiment, based on the estimated waiting time for each battery station acquired by the history analysis unit 58, it is determined whether a charged, loanable battery pack 2 can be prepared within the range of the waiting time requested by the user (acceptable waiting time) (waiting time determination). Specifically, if the estimated waiting time of a battery station is shorter than the user's acceptable waiting time, it is determined to be a battery station that can be guided. On the other hand, if the estimated waiting time of a battery station is longer than the user's acceptable waiting time, it is determined not to be a battery station that can be guided.

[0078] The determination of whether or not a battery station is eligible for guidance performed by the guidance suitability determination unit 59 can be based on either the current time or a future time. Specifically, in the case of an automatic search, if the user's acceptable waiting time is 0 minutes, the current time becomes the reference time. On the other hand, in the case of an automatic search, if the user's acceptable waiting time is not 0 minutes, or if a future time is used as the reference time for the search in an advanced search, the future time becomes the reference time.

[0079] The user terminal 5 includes a display unit 61, an operation unit 62, a communication unit 63, a storage unit 64, and a control unit 65.

[0080] The display unit 61 displays various screens, such as a screen guiding users to a battery station or a screen for making a battery replacement reservation. The operation unit 62 performs various screen operations on the screen displayed on the display unit 61. Alternatively, the display unit 61 may be configured as a display panel and the operation unit 62 as a touch panel, which are integrated into a single touch panel display.

[0081] The communications unit 63 communicates with the management server 4 via the network.

[0082] The memory unit 64 stores programs and other data executed by the processor that constitutes the control unit 65.

[0083] The control unit 65 is composed of a processor and performs various processes related to providing information about battery stations and making battery replacement reservations. Specifically, in response to user screen operations via the operation unit 62, it controls the display unit 61 to display screens that provide information such as the location of battery stations and screens for making battery replacement reservations, based on information distributed from the management server 4.

[0084] Next, we will explain the profile information managed by the user management unit 51 of the management server 4. Figure 4 is an explanatory diagram showing the contents of the profile information for each user.

[0085] The user management unit 51 of the management server 4 manages profile information for each user. This profile information concerns the user's requests (preferences, circumstances, etc.) regarding battery replacement. The profile information is acquired from the user terminal 5 in response to user operations on the user terminal 5 and stored in the storage unit 42 of the management server 4.

[0086] Profile information includes the user ID and settings related to replacement timing, waiting time, vehicle type, alert settings, and screen display settings. Furthermore, assuming the battery replacement service fee tier is set, the profile information can also include information such as battery age (degree of degradation), favorite region, favorite battery station, and membership type.

[0087] The User ID field registers the User ID (user number) that identifies the user. This User ID allows us to obtain membership information and billing methods (payment each time, fixed-rate payment, etc.) related to the user who is having their battery replaced. Furthermore, based on the user's billing method, we can determine the user's behavioral characteristics regarding battery replacement, such as the frequency of battery replacement.

[0088] In the "Replacement Timing" section, users can register their preferences (likes or conveniences) regarding the timing of battery replacement, either "Replace frequently" (setting value: 0) or "Ride for extended periods" (setting value: 1). "Replace frequently" is for when the user wants to replace the battery when there is still sufficient remaining capacity in battery pack 2. "Ride for extended periods" is for when the user wants to replace the battery when the remaining capacity of battery pack 2 is near its limit. In this embodiment, the user's acceptable remaining capacity (the lower limit of the remaining capacity that the user can tolerate) is determined by the replacement timing. For example, with "Replace frequently," the timing for battery replacement is when the acceptable remaining capacity reaches 50% and the remaining capacity of battery pack 2 reaches 50%. On the other hand, with "Ride for extended periods," the timing for battery replacement is when the acceptable remaining capacity reaches, for example, 30% and the remaining capacity of battery pack 2 reaches 30%. Note that this user-specific replacement timing can also be estimated from the remaining capacity of battery pack 2 that have been returned in the past.

[0089] In the waiting time section, the user's preferences (likes, circumstances, etc.) regarding waiting time are registered, specifically the length of the acceptable waiting time. The acceptable waiting time is the maximum waiting time that the user can tolerate when waiting at the battery station until the required number of fully charged, loanable battery packs 2 are available. In this embodiment, the user is asked to select one of the following as the acceptable waiting time: for example, 0 minutes, 5 minutes, 10 minutes, or 15 minutes.

[0090] The vehicle type field registers information about the type of electric vehicle 1 used by the user. Vehicle types include, for example, a small car equipped with one battery pack 2 (setting value: 1), a medium-sized car equipped with two battery packs 2 (setting value: 2), and a large car equipped with four battery packs 2 (setting value: 3). This vehicle type information allows the user to obtain the number of battery packs 2 installed in their electric vehicle 1, i.e., the number of battery packs 2 the user will need when replacing the battery. Additionally, depending on the vehicle type, a simplified energy consumption (driving distance per unit capacity of battery pack 2) can be obtained.

[0091] In the alert settings section, users can register whether or not they need to receive an alert prompting them to replace their battery (battery replacement notification). In this embodiment, as an alert, an alert screen (see Figure 12) is displayed on the user terminal 5 notifying the user that the battery will soon be unavailable for replacement at a battery station that meets their requirements.

[0092] The screen display settings register whether or not the user needs to display the area where their electric vehicle 1 can travel (drivable area). In this embodiment, the drivable area can be displayed on the area map 151 (road map) that shows the surrounding road conditions on the station guidance screen (see Figures 9 and 10).

[0093] Next, we will explain the usage status confirmation screen displayed on the management terminal 6. Figure 5 is an explanatory diagram showing the usage status confirmation screen.

[0094] In this embodiment, by accessing the management server 4 from the management terminal 6 and logging in, the usage status confirmation screen is displayed on the management terminal 6 as the management screen.

[0095] The usage status confirmation screen includes a menu selection unit 71, a target period setting unit 72, and an analysis result display unit 73.

[0096] The menu selection unit 71 is provided with multiple tabs 76 representing different menus. In the example shown in Figure 5, there are tabs 76 for Battery Station, Battery Pack, User, Notifications, Error Alerts, and Usage Status Confirmation.

[0097] The usage status confirmation screen shown in Figure 5 can be displayed by operating the usage status confirmation tab 76.

[0098] Operating tab 76 of the battery station displays the station information list screen (not shown). This station information list screen displays a list of information about the battery station. Specifically, it displays information such as the battery station number, the battery station name, the number of battery exchange machines 3 installed, the operating status, the network status, the number of charged packs (number of charged battery packs 2), any malfunctions in battery exchange machine 3, and any malfunctions in battery pack 2.

[0099] Operating tab 76 on the battery pack will take you to the battery pack list screen (not shown). This battery pack list screen displays information about the battery pack 2 currently in use, specifically the serial number of battery pack 2 and information about the location of battery pack 2 (the user using it, the battery replacement machine 3 containing it).

[0100] Operating the user tab 76 will take you to the user list screen (not shown). This user list screen displays information about the registered user, specifically the user ID, name, age, gender, ID of the electric vehicle 1 being used, information about the battery pack 2 being used (such as the battery pack ID), and registration date.

[0101] Operating the Notifications tab 76 will take you to the Notifications list screen (not shown). This Notifications list screen displays historical information about previously sent notifications, specifically the notification date and time and notification content. You can also transition from the Notifications list screen to the Notification Registration screen. On this Notification Registration screen, you can register a new notification. Specifically, you enter the title, display period, and notification content to register it.

[0102] Operating the Error / Alert tab 76 will take you to the Error / Alert List screen (not shown). This Error / Alert List screen displays historical information about errors and alerts previously output for the battery replacement machine 3, specifically the output date and time and the output content.

[0103] In addition, you may also include tabs that allow you to search for user usage history and system operation history (history search), and tabs that allow you to configure settings related to maintenance work such as parts replacement (maintenance settings).

[0104] In the target period setting unit 72, the administrator can specify the target period. In the example shown in Figure 5, the target period can be selected from one week, one month, one year, or a specified period using a pull-down menu. When the administrator specifies the target period and operates the execute button 77, the analysis is performed for the specified target period, and the analysis results are displayed in the analysis results display unit 73.

[0105] The analysis result display unit 73 is provided with a number display field 81, a name display field 82, a number of exchange units display field 83, and a sold-out indicator display field 84.

[0106] The number display field 81 shows the number assigned to each battery station. The name display field 82 shows the name of the battery station. The number of battery exchange units display field 83 shows the number of battery exchange units 3 installed at each battery station.

[0107] The sold-out indicator display section 84 shows the sold-out indicator for each battery station by time period. In this embodiment, the sold-out indicator for each time period displays the time during which the battery is unavailable for rental. This time during which the battery is unavailable for rental corresponds to the average waiting time that users wait at the battery station until a battery pack 2 that has been fully charged and is available for rental becomes available.

[0108] The sold-out indicator display area 84 is provided with a vertical scroll bar 85 and a horizontal scroll bar 86. When the user operates the vertical scroll bar 85, the sold-out indicator for battery stations outside the main display area can be displayed in the sold-out indicator display area 84. Similarly, when the user operates the horizontal scroll bar 86, the sold-out indicator for time periods outside the main display area can be displayed in the sold-out indicator display area 84.

[0109] In this embodiment, the time period is set to one hour, and the sell-out indicator is displayed for each one-hour interval. However, the time period is not limited to this, and the sell-out indicator may be displayed for shorter intervals than one hour, or for longer intervals than one hour.

[0110] Furthermore, in this embodiment, the time during which the battery station was unavailable for rental was displayed as an indicator (sold-out indicator) representing the degree of unavailability at each battery station. However, the percentage of time during which the battery station was unavailable for rental could also be displayed.

[0111] Next, we will explain the login screen and start screen displayed on user terminal 5. Figure 6 is an explanatory diagram showing the login screen and start screen.

[0112] The login screen shown in Figure 6(A) is displayed on user terminal 5 when it accesses the management server 4. This login screen and subsequent screens are displayed by a station guidance application installed on user terminal 5 (for example, a mobile OS-compatible app or a web browser).

[0113] The login screen is equipped with a user ID input section 101, a password input section 102, and a login button 103. When a user enters their user ID and password and operates the login button 103, the management server 4 performs user authentication based on the user ID and password.

[0114] If user authentication is successful, the user terminal 5 will transition to the start screen (see Figure 6(B)).

[0115] The start screen (menu screen) shown in Figure 6(B) has buttons 111, 112, and 113 for "Automatic Search," "Advanced Search," and "Profile Settings," respectively.

[0116] When the user operates the "Automatic Search" button 111 on the start screen, the management server 4 searches for battery stations based on default search conditions derived from user-specific profile information acquired in advance, and transitions to a station guidance screen (see Figures 9 and 10) that displays the battery stations found in the search results to the user.

[0117] When the "Advanced Search" button 112 is pressed, the user is taken to an advanced search screen (see Figure 8) where they can enter their own search criteria and have the management server 4 search for battery stations.

[0118] When the "Profile Settings" button 113 is pressed, the user is taken to the profile settings screen (see Figure 7(A)) where they can set their preferences and needs as a profile.

[0119] Next, we will explain the profile settings screen and the profile registration completion screen displayed on user terminal 5. Figure 7 is an explanatory diagram showing the profile settings screen and the profile registration completion screen.

[0120] The profile settings screen shown in Figure 7(A) can be displayed by selecting "Profile Settings" on the Start screen (see Figure 6(B)).

[0121] The profile settings screen includes a user ID display unit 121, a replacement timing selection unit 122, a waiting time selection unit 123, a vehicle type selection unit 124, an alert necessity selection unit 125, an area display necessity selection unit 126, a confirm button 127, and a cancel button 128.

[0122] The User ID display unit 121 displays the User ID (User Number) of the logged-in user.

[0123] The replacement timing selection unit 122 allows the user to select either "Replace frequently" (setting value: 0) or "Ride for a long time" (setting value: 1) via a pull-down menu, according to the user's preferences (likes or convenience) regarding the timing of battery replacement. For example, if the user does not want to worry about running out of power (a state where the battery pack 2 has no remaining capacity and the vehicle becomes inoperable), they can select "Replace frequently." Also, if the user's billing method involves paying each time the battery is replaced, they can reduce the cost of battery replacement by using the battery until the limit is reached, in which case they should select "Ride for a long time."

[0124] In the waiting time selection section 123, the user can select the acceptable waiting time length (for example, 0 minutes, 5 minutes, 10 minutes, or 15 minutes) from a pull-down menu according to the user's needs (preferences, circumstances, etc.).

[0125] In the vehicle selection section 124, the user can select the type of electric vehicle 1 to be used by the user via a pull-down menu. The vehicle types include, for example, a small vehicle equipped with one battery pack 2 (setting value: 1), a medium-sized vehicle equipped with two battery packs 2 (setting value: 2), and a large vehicle equipped with four battery packs 2 (setting value: 3).

[0126] In the alert selection unit 125, the user can select whether or not to issue an alert prompting the user to replace the battery (ON or OFF) using a pull-down menu.

[0127] In the area display requirement selection unit 126, the user can select whether or not to display the drivable area on the station guidance screen (see Figures 9 and 10) using a pull-down menu (ON or OFF). Furthermore, if the membership type can be identified based on the user ID, etc., the profile settings screen may display pre-selected recommended settings (popular settings), allowing the user to change them according to their preferences. Additionally, the profile settings screen may allow the user to select an acceptable charge level for lending battery packs 2 that are not fully charged but have completed a predetermined charge level (e.g., 80% charged).

[0128] Here, when the user makes selections in various parts of the profile settings screen and presses the OK button 127, the management server 4 processes the user's input information as profile information. Accordingly, the user terminal 5 transitions to the profile registration completion screen (see Figure 7(B)). On the other hand, pressing the cancel button 128 returns to the start screen (see Figure 6(B)).

[0129] The profile registration completion screen shown in Figure 7(B) includes text 131 indicating that profile registration is complete, and a button 132 that instructs the user to return to the start screen.

[0130] Next, we will explain the detailed search screen displayed on user terminal 5. Figure 8 is an explanatory diagram showing the detailed search screen.

[0131] The advanced search screen can be accessed by selecting "Advanced Search" on the Start screen (see Figure 6(B)).

[0132] The detailed search screen includes a date input section 141, a time input section 142, a location input section 143, a search button 144, and a cancel button 145.

[0133] In the date input section 141, the user can enter a date (year, month, day) as a search criterion. Alternatively, the user may be able to select a date using a calendar screen or similar. In the time input section 142, the user can enter a time as a search criterion. Initially, the current date and time (date and time) may be displayed, and if the user does not specify a date and time, the battery station search may be performed using the current date and time. In the location input section 143, the user can enter a location as a search criterion. Alternatively, the user may be able to select a district within the service area using a pull-down menu or similar, or specify a location from a map of the entire service area.

[0134] When the user enters search criteria (date, time, location) and operates the search button 144, the management server 4 performs a battery station search based on the entered search criteria, and the user terminal 5 displays a station guidance screen (see Figures 9 and 10) that guides the user to the battery stations as a result of the search results. On the other hand, when the user operates the cancel button 145, they return to the start screen (see Figure 6(B)).

[0135] Next, we will explain the station information screen displayed on user terminal 5. Figures 9 and 10 are explanatory diagrams showing the station information screen.

[0136] The station information screen is displayed by selecting "Automatic Search" on the start screen (see Figure 6(B)). Alternatively, the station information screen can be displayed by entering search criteria (date, time, location) on the detailed search screen (see Figure 8) and pressing the search button 144.

[0137] The station information screen displays a guide map with battery station icons 152 superimposed on the area map 151 (road map). The battery station icon 152 displays the number of fully charged battery packs 2 available for loan at the corresponding battery station.

[0138] Furthermore, the station information screen displays an icon 153 of the electric vehicle, representing the current location of electric vehicle 1, superimposed on the area map 151. The management server 4 obtains location information from the user terminal 5 and displays the electric vehicle icon 153 based on that location information.

[0139] Furthermore, on the station information screen, users can select a battery station icon 152. When the battery station icon 152 is selected (for example, by tapping it), detailed information about the corresponding battery station (such as its location and contact information) will be displayed. Additionally, when the battery station icon 152 is selected (for example, by long-pressing it) on the station information screen, the user will be taken to the reservation screen (see Figure 11(A)).

[0140] Furthermore, on the station guidance screen, the drivable area 154 is displayed on the area map 151 (road map). This drivable area 154 is the area in which the electric vehicle 1 used by the user can travel without changing the battery. In the examples shown in Figures 9 and 10, the drivable area is displayed as a circular region with a radius equal to the drivable distance based on the remaining capacity of the battery pack 2 installed in the electric vehicle 1, relative to the current location of the electric vehicle 1 used by the user. Also, on the station guidance screen, areas outside the drivable area are displayed in gray. In addition, the drivable area 154 will not be displayed if the user disables the display on the profile settings screen (see Figure 7(A)).

[0141] The driving range is the distance that the electric vehicle 1 can travel before the battery pack 2 installed in the electric vehicle 1 used by the user reaches the user's allowable remaining capacity based on the replacement timing specified by the user. Therefore, the size of the driving area differs depending on the setting of the replacement timing. In other words, if the setting is "frequent replacement," the driving range will be shorter, and the driving area will be smaller, while if the setting is "longer rides," the driving range will be longer, and the driving area will be larger.

[0142] Furthermore, on the station guidance screen, the status of the battery station icon 152 changes depending on the result of the determination (guidance suitability determination) of whether or not it is a battery station that can perform battery replacement that meets the user's needs and should be guided to perform battery replacement.

[0143] Specifically, if the battery station is one that is eligible for guidance, icon 152 will be enabled and displayed in a color that indicates it is enabled (for example, blue). On the other hand, if the battery station is unable to perform a battery replacement that meets the user's needs and therefore should not guide the user to a battery replacement, icon 152 will be disabled and displayed in a color that indicates it is disabled (for example, gray).

[0144] Furthermore, in this embodiment, when the battery station icon 152 is enabled, it is possible to select the icon 152, which allows for the display of detailed information about the battery station or transitions to a reservation screen (see Figure 11(A)) for making a battery replacement reservation at the battery station. On the other hand, when the icon 152 is disabled, it is not possible to select the icon 152.

[0145] The example shown in Figure 9(A) is when the user's acceptable waiting time is 0 minutes and the user requires 2 battery packs 2. In this case, the suitability of the guidance is determined based on the number of currently charged and available battery packs 2. Specifically, of the battery stations BS2, BS3, and BS4 within the driving area, only battery station BS3 has 2 currently charged and available battery packs 2, so battery station BS3 is displayed in a color indicating that it is in a valid state.

[0146] The example shown in Figure 9(B) is for a case where the user's acceptable waiting time is 5 minutes and the user requires 2 battery packs 2. In this case, the suitability of the guidance is determined based on the number of charged and available battery packs 2 5 minutes from now. Specifically, among the battery stations BS2, BS3, and BS4 within the driving area, battery stations BS3 and BS4 will have 2 charged and available battery packs 2 5 minutes from now, so battery stations BS3 and BS4 will be displayed in a color indicating that they are available.

[0147] The example shown in Figure 10(A) is for a case where the user's acceptable waiting time is 10 minutes and the user requires two battery packs 2. In this case, the suitability of the guidance is determined based on the number of charged and available battery packs 2 10 minutes from now. Specifically, all of the battery stations BS2, BS3, and BS4 within the driving area will have two charged and available battery packs 2 10 minutes from now, so battery stations BS2, BS3, and BS4 will be displayed in a color indicating that they are available.

[0148] The example shown in Figure 10(B) is for a case where the user's acceptable waiting time is 0 minutes and the user requires 4 battery packs 2. In this case, the suitability of the guidance is determined based on the number of currently charged and available battery packs 2. Specifically, of the battery stations BS4 and BS5 within the driving area, only battery station BS5 can currently provide 4 charged and available battery packs 2, so battery station BS4 is displayed in a color indicating that it is available.

[0149] In this embodiment, if the user's acceptable waiting time is 0 minutes, only battery stations that can immediately lend the required number of batteries will be guided. Furthermore, even if a battery station currently has no batteries available for loan, it may still be guided if the user's acceptable waiting time is not 0 minutes. In addition, as the user's acceptable waiting time increases, the number of battery stations that can be guided may increase.

[0150] By the way, the station information screen displays the number of fully charged, available Battery Pack 2 units for each battery station. This information is obtained from real-time data on the charging status of Battery Pack 2 units at each battery station. In other words, when using the automatic search function or when no date and time are specified on the detailed search screen, and the station information screen is displayed using the current date and time as the reference point, the number of fully charged, available Battery Pack 2 units for each battery station will be displayed.

[0151] On the other hand, if a future date and time is specified on the detailed search screen, it is difficult to predict the number of fully charged, available battery packs 2 at that future date and time, so the number of fully charged, available battery packs 2 is not displayed. However, by analyzing historical information on past battery exchange status at each battery station, it is possible to obtain an estimated waiting time at each battery station at each time, and this estimated waiting time may be displayed on the station information screen.

[0152] Next, we will explain the reservation screen and reservation completion screen displayed on user terminal 5. Figure 11 is an explanatory diagram showing the reservation screen and reservation completion screen.

[0153] The reservation screen shown in Figure 11(A) is displayed by selecting a battery station on the station information screen (see Figures 9 and 10), specifically by operating (tapping) the battery station icon 152.

[0154] The reservation screen includes a station information display unit 161, a reservation button 162, and a cancel button 163. The station information display unit 161 displays information about the battery station, specifically the name of the battery station and the number of charged, available battery packs 2 (remaining battery count).

[0155] When the user checks the battery station information and presses the reservation button 162, the management server 4 processes the battery replacement reservation. Once the reservation is completed on the management server 4, the user terminal 5 transitions to the reservation completion screen (see Figure 11(B)). Pressing the cancel button 163 returns the user to the station information screen (see Figures 9 and 10).

[0156] The reservation completion screen shown in Figure 11(B) includes a reservation completion notification unit 171, a battery station information display unit 172, and a button 173 that instructs the user to return to the start screen. The reservation completion notification unit 171 displays text informing the user that the reservation is complete. The battery station information display unit 172 displays information about the battery station, specifically the name of the battery station. After the user confirms that the reservation is complete, they operate button 173 to return to the start screen (see Figure 6(B)).

[0157] Next, we will explain the alert screen displayed on user terminal 5. Figure 12 is an explanatory diagram showing the alert screen.

[0158] When predetermined alarm conditions are met, the management server 4 issues an alert (battery replacement notification). In this embodiment, the alert screen shown in Figure 12 is displayed on the user terminal 5 as an alert is issued.

[0159] The alert screen displays a notification box 181. The notification box 181 may appear as a pop-up superimposed on the standby screen, for example. The notification box 181 displays text indicating that the battery will soon be unavailable for replacement at a battery station that meets the user's requirements, and text prompting the user to make a battery replacement reservation.

[0160] This avoids the inconvenience of running out of power before reaching a battery station, even though such stations are available.

[0161] Furthermore, the system may compare the allowable remaining capacity based on the replacement timing specified by the user with the actual remaining capacity of the battery pack 2 installed in the electric vehicle 1 used by the user. If the actual remaining capacity falls below the allowable remaining capacity, an alert may be issued. In this case, the alert screen should display text prompting the user to replace the battery immediately.

[0162] Next, the operating procedures for user terminal 5 and management server 4 will be described. Figure 13 is a sequence diagram showing the operating procedures for user terminal 5 and management server 4 during login and profile setup. Figure 14 is a sequence diagram showing the operating procedures for user terminal 5 and management server 4 when selecting automatic search and advanced search. Figure 15 is a sequence diagram showing the operating procedures for user terminal 5 and management server 4 during reservation.

[0163] First, let's explain the login process. In this case, as shown in Figure 13(A), when the user terminal 5 starts the station guidance application, it displays the login screen (see Figure 6(A)). When the user performs the login operation on this login screen, a login request is sent to the management server 4.

[0164] When the management server 4 receives a login request from the user terminal 5, it performs user authentication based on the user ID and password included in the request and sends a login response to the user terminal 5.

[0165] When user terminal 5 receives a login response from management server 4, if user authentication is successful and login is approved, the start screen (see Figure 6(B)) is displayed. If user authentication fails, an error screen (not shown) is displayed.

[0166] Next, we will explain the process when setting up a profile. In this case, as shown in Figure 13(B), when the user selects a profile setting on the start screen (see Figure 6(B)) on the user terminal 5, a profile setting request is sent to the management server 4.

[0167] When the management server 4 receives a profile setting request from the user terminal 5, it retrieves the profile information if the user has already set up a profile. The management server 4 then sends a profile setting response to the user terminal 5. This response includes the user's profile information. Note that for the first time a profile is set up, a response without profile information is sent.

[0168] When user terminal 5 receives a profile setting response from management server 4, it displays the profile setting screen (see Figure 7(A)) based on the information contained in the response. Next, when the user performs a selection operation on the profile setting screen and instructs the user to register the profile, user terminal 5 sends a profile registration request to management server 4. This request includes the user's screen operation information (input information) on the profile setting screen.

[0169] When the management server 4 receives a profile registration request from the user terminal 5, it updates the profile information of the corresponding user based on the information contained in the request. Note that when a profile is set up for the first time, new profile information is registered. The management server 4 then sends a profile registration response to the user terminal 5.

[0170] When user terminal 5 receives a profile registration response from management server 4, it displays a profile registration completion screen (see Figure 7(B)). Then, when the user performs an operation to transition to the start screen (see Figure 6(B)), user terminal 5 returns to the start screen.

[0171] Next, we will explain the case when the automatic search is selected. In this case, as shown in Figure 14(A), when the user selects automatic search on the start screen (see Figure 6(B)) on the user terminal 5, an automatic search request is sent to the management server 4.

[0172] When the management server 4 receives an automated search request from the user terminal 5, it sets the target area using the current location of the electric vehicle 1 as the reference location and searches the map of that target area (map search). Next, the management server 4 obtains the location information of battery stations located within the target area, as well as information on the current charging status of the battery pack 2 at those battery stations (battery station information acquisition). Then, the management server 4 sends the automated search response to the user terminal 5. This response includes a map of the target area and information on the battery stations located within that target area.

[0173] When user terminal 5 receives a response from management server 4 for automated search, it displays a station information screen (see Figures 9 and 10) based on the information contained in that response.

[0174] Next, we will explain what happens when an advanced search is selected. In this case, as shown in Figure 14(B), when the user selects an advanced search on the start screen (see Figure 6(B)) on the user terminal 5, an advanced search request is sent to the management server 4.

[0175] When the management server 4 receives a detailed search request from the user terminal 5, if the user has already performed a detailed search, it retrieves the detailed search information from that time. Then, the management server 4 sends the detailed search response to the user terminal 5. This response contains the detailed search information for the user.

[0176] When user terminal 5 receives a detailed search response from management server 4, it displays the detailed search screen (see Figure 8) based on the information contained in the response. On this detailed search screen, when the user enters search conditions (date and time of use, location of use) and initiates a search, it sends a request to register detailed search information to management server 4. This request includes information about the user's screen operations (input information) on the detailed search screen.

[0177] When the management server 4 receives a request for registration of detailed search information from the user terminal 5, it updates the detailed search information for the relevant user based on the information contained in the request. The management server 4 also sets a target area using the location specified by the user as the reference location and searches the map of that target area (map search). Next, the management server 4 obtains information (location information, etc.) about battery stations located within the target area (battery station information acquisition). Finally, the management server 4 sends a response for registration of detailed search information to the user terminal 5. This response includes a map of the target area and information about battery stations located within the target area.

[0178] When user terminal 5 receives a response from management server 4 for registration of detailed information, it displays a station guidance screen (see Figures 9 and 10) based on the information contained in that response.

[0179] Next, we will explain the reservation process. In this case, as shown in Figure 15, when the user terminal 5 selects a battery station on the station guidance screen (see Figures 9 and 10), it sends a reservation guidance request to the management server 4. This request includes information about the battery station selected by the user.

[0180] When the management server 4 receives a reservation guidance request from the user terminal 5, it retrieves the reservation information (information regarding battery replacement reservations) for the battery station selected by the user based on the information contained in the request. The management server 4 then sends a reservation guidance response to the user terminal 5. This response includes the reservation information for the corresponding battery station, specifically the name of the battery station and the number of charged, available batteries (remaining battery count).

[0181] When user terminal 5 receives a reservation notification response from management server 4, it displays the reservation screen (see Figure 11(A)) based on the information contained in the response. Next, when the user performs an operation to instruct the reservation on the reservation screen, user terminal 5 sends a reservation request to management server 4.

[0182] When the management server 4 receives a reservation request from the user terminal 5, it updates (confirms) the reservation information for the corresponding battery station. The management server 4 then sends a reservation response to the user terminal 5. In addition, along with updating (confirming) the reservation information, the battery pack 2 lending order list and other information are also updated and sent to the battery exchange machine 3, thereby enabling control over the lending of battery packs 2 to users.

[0183] When user terminal 5 receives a reservation response from management server 4, it displays a reservation completion screen (see Figure 11(B)). Then, when the user performs an operation to transition to the start screen (see Figure 6(B)), user terminal 5 returns to the start screen.

[0184] In this embodiment, when the management server 4 receives an event related to battery replacement, specifically an event guiding the user to a battery station where they can replace their battery, or an event notifying the user of an alert prompting them to replace their battery, it refers to the configuration information (profile information) regarding the user's request for battery replacement and the sold-out indicator, and displays a station guidance screen or an alert screen as a notification screen related to the event on the user terminal 5.

[0185] This allows for guidance to battery stations where users can replace their batteries, and the output of alerts prompting users to replace their batteries, to be done in a way that suits the user's preferences and circumstances, thereby improving user convenience. Furthermore, by referring to an indicator that shows the degree of unavailability at each battery station, notification screens regarding events can be displayed appropriately.

[0186] As described above, embodiments have been explained as examples of the technology disclosed in this application. However, the technology in this disclosure is not limited to these embodiments and can be applied to embodiments that have been modified, replaced, added, or omitted. Furthermore, it is possible to create new embodiments by combining the components described in the above embodiments. [Industrial applicability]

[0187] The battery management system, battery management method, and terminal device related to this disclosure have the effect of enhancing user convenience by providing guidance to battery stations where users can replace batteries and outputting alerts prompting users to replace batteries in a manner that suits the user's preferences and convenience. They are useful as a battery management system and battery management method for managing battery stations and battery devices, as well as as a terminal device carried by the user, in battery replacement services where users of electric vehicles and the like replace battery devices at battery stations. [Explanation of Symbols]

[0188] 1. Electric Vehicle 2. Battery pack (battery device) 3. Battery replacement machine (battery replacement device) 4. Management Server (Server Device) 5. User terminal (terminal device) 51 User Management Department 54 Station Information Display Unit 56 Notification Management Department 58. History Analysis Department 59 Guidance suitability determination unit

Claims

1. Multiple battery exchange devices are located at the battery station, which receive and charge battery devices returned by users, and also lend charged battery devices to users in exchange for the returned battery devices. A server device is connected to these multiple battery replacement devices via a network to manage the battery replacement status of the battery devices in the battery replacement devices, A terminal device owned by the user and connected to the server device via a network, A battery management system having, The server device is By analyzing historical information on past battery replacement status at each battery station, an index representing the degree of unavailability is obtained for each battery station. A battery management system characterized in that, when a battery replacement event occurs, it displays a notification screen regarding the event on the terminal device by referring to setting information regarding the user's request for battery replacement and the aforementioned indicator.

2. The server device is The battery management system according to claim 1, characterized in that, as the aforementioned indicator, the time during which the battery is unavailable for loan per unit of time is obtained for each battery station.

3. The server device is The battery management system according to claim 1, characterized in that, when guiding a user to a battery station as an event related to battery replacement, the terminal device displays a notification screen on which battery stations capable of performing battery replacement that meet the user's requirements are superimposed on a map.

4. The server device is The battery management system according to claim 3, characterized in that it acquires information regarding battery replacement reservations in response to user operations on the notification screen displayed on the terminal device.

5. The server device is The battery management system according to claim 1, characterized in that it acquires and stores the setting information relating to at least one item of replacement timing, waiting time, presence or absence of alerts, and display settings of the notification screen, in response to user operations on the terminal device.

6. A battery management method for a server device, which includes a battery station where a user replaces a battery device and a battery device management method, By analyzing historical information on past battery replacement status at each battery station, an index representing the degree of unavailability is obtained for each battery station. A battery management method characterized in that, when a battery replacement event occurs, a notification screen regarding the event is displayed on the terminal device by referring to setting information regarding the user's request for battery replacement and the aforementioned indicator.

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