Charging reservation management apparatus and charging reservation management method

Abstract

To provide a charging reservation management apparatus which suppresses reservation for using a charger which is less likely to be used, and eliminates congestion due to queuing for chargers.SOLUTION: A charging reservation management apparatus equipped in a charger of an electric vehicle includes an authentication information acquisition unit which acquires authentication information for authenticating a user of a charger, an operation unit, a display unit, and a processing unit. The processing unit is configured to: authenticate a user of a charger based on the authentication information acquired by the authentication information acquisition unit, receives a reservation for using the charger through the operation unit, allocates, when the authentication of the user is successful, based on the received reservation for using the charger, a reserved charging start time for the charger in the order of reservations, and displays, on the display unit, status of reservations for using the charger made by one or more users who made the reservations.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a charging reservation management device and a charging reservation management method. [Background technology]

[0002] As the use of electric vehicles (EVs) becomes more widespread, it is expected that long queues of vehicles will form in front of chargers installed at highway service areas and other locations during periods of increased traffic volume, such as the Obon holiday and the New Year holidays. As a technology for solving this problem, Patent Document 1 discloses a reservation system for efficiently operating charging stations. The reservation system in Patent Document 1 includes a navigation device that generates charging reservation information and sends it to a charger, and a charger that uses the reservation information to create a schedule and charges according to the created schedule, and the charger is configured to create a new schedule based on the arrival time of the reserved vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-149030 Summary of the Invention [Problem to be solved by the invention]

[0004] However, reservation systems that allow users to reserve charger usage over the Internet have a technical issue in that chargers that are unlikely to actually be used are provisionally reserved, hindering the efficient operation of chargers.

[0005] An object of the present disclosure is to provide a charging reservation management device and a charging reservation management method that can suppress reservations for use of chargers that are unlikely to be available and eliminate congestion caused by waiting in line for chargers. [Means for solving the problem]

[0006] A charging reservation management device according to one aspect of the present disclosure is a charging reservation management device that is provided in a charger for an electric vehicle or that is attached to the charger, and includes an authentication information acquisition unit that acquires authentication information for authenticating a user of the charger, an operation unit that accepts a reservation to use the charger, a display unit that displays information related to the reservation to use the charger, and a processing unit that executes processing related to the reservation to use the charger, wherein the processing unit authenticates the user of the charger based on the authentication information acquired by the authentication information acquisition unit, accepts the reservation to use the charger at the operation unit, and if authentication of the user is successful, assigns a reserved charging start time for the charger in the order of the reservation to use the charger based on the accepted reservation to use the charger, and causes the display unit to display the status of the reservation to use the charger by one or more users who have made the reservation to use the charger.

[0007] A charging reservation management method according to one aspect of the present disclosure is a charging reservation management method using an input / output device provided in or adjacent to a charger for an electric vehicle, which obtains authentication information for authenticating a user of the charger, authenticates the user of the charger based on the obtained authentication information, accepts a reservation to use the charger, and if the authentication of the user is successful, assigns a reserved charging start time for the charger in order of the reservation based on the accepted reservation to use the charger, and displays the status of the reservation to use the charger by one or more users who have made the reservation. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to suppress reservations for use of chargers that are unlikely to be available and to eliminate congestion caused by waiting in line for chargers. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram illustrating a configuration example of a charging system according to a first embodiment. [Figure 2] 1 is a block diagram showing an example of the configuration of a charging system according to a first embodiment. [Figure 3] 4 is a flowchart showing a processing procedure of a charging reservation management method according to the first embodiment. [Figure 4] 4 is a flowchart showing a processing procedure of a charging reservation management method according to the first embodiment. [Figure 5] FIG. 10 is a schematic diagram showing an example of a reservation status display screen for a charger. [Figure 6] FIG. 10 is a schematic diagram showing an example of a list of reservations whose priorities have been lowered; [Figure 7] FIG. 10 is a schematic diagram illustrating a configuration example of a charging system according to a second embodiment. [Figure 8] FIG. 10 is a block diagram showing a configuration example of a charging system according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] A charging reservation management device and a charging reservation management method according to embodiments of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. Furthermore, at least some of the embodiments described below may be combined in any manner.

[0011] (Embodiment 1) Fig. 1 is a schematic diagram illustrating an example of the configuration of a charging system according to the first embodiment, and Fig. 2 is a block diagram illustrating an example of the configuration of the charging system according to the first embodiment. The charging system according to the first embodiment includes a charger 1 that charges an electric vehicle 4, a charging reservation management device 2 incorporated in the charger 1, and an authentication server 3. The charger 1 is connected to the authentication server 3 via a communication network N, and is configured to authenticate a user of the charger 1 using the authentication server 3. The charging system according to this embodiment aims to solve the problem of vehicles lining up in front of the charger 1 waiting to be charged by providing the charger 1 with a reservation reception function that accepts on-site charging reservations in the order in which the electric vehicles 4 arrive.

[0012] The charger 1 is installed in expressway service areas (SAs) and parking areas (PAs), car accessory stores, other commercial facilities, accommodation facilities, public facilities, etc., and is a device for charging electric vehicles 4. The charger 1 is intended to be used by an unspecified number of users. The electric vehicle 4 is a vehicle equipped with an electric motor as a power source and a storage battery 41 that supplies power to the electric motor, and includes not only so-called battery-powered electric vehicles that are powered only by an electric motor, but also hybrid vehicles that also have an internal combustion engine, plug-in hybrid vehicles, etc. The electric vehicle 4 includes four-wheeled vehicles, three-wheeled vehicles, two-wheeled vehicles, etc.

[0013] 1 and 2, the charger 1 includes a charging cable 10, a charging connector 10a, a processing unit 11, a display unit (input / output device) 12, an operation unit (input / output device) 13, an authentication information acquisition unit 14, a storage unit 15, a communication unit 16, and a power supply unit 17. The processing unit 11, the display unit 12, the operation unit 13, and the authentication information acquisition unit 14, which are surrounded by a two-dot chain line in FIG. 1, and the communication unit 16 shown in FIG. 2, function as main components of the charging reservation management device 2.

[0014] The charging cable 10 includes a power line and a communication line. One end of the charging cable 10 is connected to the power supply unit 17, and the other end of the charging cable 10 is provided with a charging connector 10a. The charging connector 10a connects the electric vehicle 4 and the charger 1, and when the charging connector 10a is connected to the plug-in connector of the electric vehicle 4, the storage battery 41 mounted on the electric vehicle 4 is connected to the power supply unit 17 via the power line. The electric vehicle 4 connected to the charging cable 10 charges the storage battery 41 with power supplied from the power supply unit 17 via the power line of the charging cable 10.

[0015] The processing unit 11 is a microcomputer having one or more arithmetic processing units such as a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit), and controls the operation of the charger 1. For example, the processing unit 11 performs charging control, charging reservation management processing, etc. by reading and executing a computer program (not shown) stored in the storage unit 15. The processing unit 11 recognizes a user's operation via the operation unit 13, and controls the output of DC power by the power supply unit 17 in accordance with the user's operation. The processing unit 11 also performs communication processing with the authentication server 3 by the communication unit 16, display processing by the display unit 12, etc.

[0016] Each functional unit of the processing unit 11 may be realized by software, by hardware such as an FPGA or an ASIC, or by a combination thereof. Furthermore, the processing unit 11 may be a multi-computer consisting of multiple computers, or may be a virtual machine virtually constructed by software. The processing performed by the processing unit 11 may be a distributed processing configuration consisting of multiple computers, or may be realized using a cloud server.

[0017] The display unit 12 is a display device such as a liquid crystal display or an organic EL display, and displays information provided by the processing unit 11. The display unit 12 is provided on the front surface of the housing 1a of the charger 1. For example, the display unit 12 displays the reservation status of the charger 1 and accepts a reservation status display screen 112 (see FIG. 5 ) that accepts reservations for use of the charger 1, operations to start charging, and the like.

[0018] The operation unit 13 is an input device that accepts various operations by the user of the charger 1 and outputs the operation contents as operation signals to the processing unit 11. The operation unit 13 is provided on the front surface of the housing 1a of the charger 1. The operation unit 13 is, for example, an operation panel arranged on the display unit 12, and together with the display unit 12, forms a touch panel display. The operation unit 13 may be provided with hardware keys such as a start button that instructs the start of charging, a stop button that stops charging, an emergency stop button, and the like. Note that the operation means provided in the operation unit 13 are not limited to these.

[0019] The authentication information acquisition unit 14 is a card reader for reading authentication information required to authenticate a user from a personal authentication information recording medium such as a credit card, My Number card, or driver's license held by the user. The authentication information acquisition unit 14 is provided on the front surface of the housing 1a of the charger 1. Card readers include magnetic card readers, IC card readers, contactless card readers, etc. Note that a credit card or the like is an example of a personal authentication information recording medium of a user, and the configuration of the authentication information acquisition unit 14 is not limited to a card reader.

[0020] The storage unit 15 includes, for example, a main storage unit and an auxiliary storage unit. The main storage unit is a temporary storage area such as a static random access memory (SRAM), a dynamic random access memory (DRAM), or a flash memory, and temporarily stores data required for the processing unit 11 to execute arithmetic processing. The auxiliary storage unit is a storage device such as a hard disk or an electrically erasable programmable read only memory (EEPROM). The storage unit 15 stores computer programs executed by the processing unit 11. The storage unit 15 also stores the contents of one or more charging reservations in the charging reservation management process.

[0021] The communication unit 16 is a communication circuit for transmitting and receiving various information to and from the authentication server 3 via the communication network N. The transmission and reception of various information by the communication unit 16 is controlled by the processing unit 11. For example, the communication unit 16 transmits authentication information of the user of the charger 1 to the authentication server 3, and receives the authentication result transmitted from the authentication server 3.

[0022] Power supply unit 17 is a power supply circuit that outputs DC power in response to a command from processing unit 11. Power supply unit 17 includes, for example, a converter and a smoothing circuit. The converter converts AC power input from power system A into DC power in response to a command from processing unit 11. The smoothing circuit smoothes the DC power output by the converter and supplies the smoothed DC power to electric vehicle 4 via charging cable 10. Note that the specific configuration of power supply unit 17 is not limited to this configuration, and any circuit configuration that can output DC power may be used.

[0023] 3 and 4 are flowcharts showing the processing steps of the charging reservation management method according to the first embodiment. The processing unit 11 of the charger 1 reads out reservation information for the charger 1 stored in the storage unit 15 (step S11), and displays the reservation status display screen 112 of the charger 1 based on the read reservation information (step S12). The reservation information is information created by the processing of steps S13 to S18. The reservation information is information including, for example, identification information indicating the electric vehicle 4 of each of one or more users who have made a reservation for use of the charger 1, a reserved charging start time assigned to each user according to the priority of the reservation order, and reserving party identification information. The identification information is, for example, a four-digit vehicle number. The reserving party identification information may be the user's authentication information itself, or may be a hash value of the authentication information, etc. In other words, the reserving party identification information may be information that can determine whether the user at the time of reservation and the person who intends to use the charger 1 are the same person.

[0024] 5 is a schematic diagram showing an example of a reservation status display screen 112 of the charger 1. The reservation status display screen 112 includes, for example, a reservation list 112a, a charging information display section 112b, a charging waiting status display section 112c, a charging start button 112d, and a reservation button 112e.

[0025] The reservation list 112a is a list containing, as column items, a reception number assigned to a user or an electric vehicle 4 in the order in which reservations for the charger 1 are received, the vehicle number (vehicle number) for which the reservation for the charger 1 is made, the charging start time, and the waiting time for use of the charger 1. Each row of the reservation list 112a stores a record of a reservation for use of the charger 1. For example, the reservation details for reception number "1" include the vehicle number "12-34," the charging start time "13:00," and the waiting time for use "0" minutes.

[0026] The charging guidance display unit 112b is used to provide information about electric vehicles 4 that can currently use the charger 1. The charging guidance display unit 112b displays the reception number and vehicle number indicated by the record where the waiting time for use has become "0" minutes, and also displays a guidance message such as "Charging is available."

[0027] The charging waiting status display unit 112c displays the number of vehicles currently waiting to use the charger 1 and the waiting time for using the charger 1 if a reservation is made at the current time.

[0028] The charge start button 112d is a soft key for starting use of the charger 1. The reservation button 112e is a soft key for starting reservation of use of the charger 1.

[0029] 3, after completing the process of step S12, the processing unit 11 determines whether the reservation button 112e has been operated (step S13). If the reservation button 112e has not been operated (step S13: NO), the processing unit 11 proceeds to the process of step S20. If it is determined that the reservation button 112e has been operated (step S13: YES), the processing unit 11 acquires the authentication information of the user using the authentication information acquisition unit 14 (step S14).

[0030] The processing unit 11 authenticates the user based on the acquired authentication information (step S15) and determines whether the authentication is successful or not (step S16). For example, the processing unit 11 authenticates the user using the authentication server 3. Specifically, the processing unit 11 transmits the authentication information to the authentication server 3 via the communication unit 16 and requests authentication. The authentication server 3 receives the authentication information transmitted from the charger 1, performs authentication processing based on the received authentication information and the information recorded in the authentication information database 31, and transmits the authentication result to the charger 1. The charger 1 receives the authentication result transmitted from the authentication server 3. The processing unit 11 can determine whether the authentication of the user is successful or not by referring to the received authentication result. The authentication information is, for example, information for performing credit card billing authentication, and the authentication server 3 is a billing authentication server. If the billing authentication process is successful, the processing unit 11 determines that the authentication of the user has been successful. By performing the billing authentication process when a user reserves and uses the charger 1, it is possible to prevent fraudulent reservations and fraudulent uses of the charger 1.

[0031] If the authentication fails (step S16: NO), the process related to the reservation of use of the charger 1 is terminated, and the process proceeds to step S20. Note that the user can redo the reservation by operating the reservation button 112e again. If it is determined that the authentication is successful (step S16: YES), the processing unit 11 accepts the vehicle number through the operation unit 13 (step S17). The processing unit 11 assigns charging start times in the order of reservations for use of the charger 1 (step S18) and stores the reservation information in the storage unit 15 (step S19). Specifically, the processing unit 11 associates the reception number issued in the order of reservations, the vehicle number accepted in step S17, the charging start time assigned in step S18, and the reservation user identification information, and stores them in the storage unit 15. The reservation user identification information is the authentication information acquired in step S14 or a hash value of the authentication information calculated by the processing unit 11.

[0032] After completing the process of step S19, the processing unit 11 determines whether the charging start button 112d has been operated (step S20). If the charging start button 112d has not been operated (step S20: NO), the processing unit 11 proceeds to step S26. If it is determined that the charging start button 112d has been operated (step S20: YES), the processing unit 11 acquires the authentication information of the user using the authentication information acquisition unit 14 (step S21).

[0033] The processing unit 11 authenticates the user based on the acquired authentication information (step S22). Then, the processing unit 11 determines whether the authentication of the user is successful and whether the authenticated user is a reserving user who is allowed to use the charger 1 (step S23). Specifically, the processing unit 11 determines whether the authentication information of the successfully authenticated user is the same as the reserving user identification information included in the record with a usage waiting time of "0" minutes. If the reserving user identification information is a hash value of the authentication information of the reserving user, the processing unit 11 calculates the hash value of the authentication information acquired in step S21, and determines whether the calculated hash value is the same as the reserving user identification information included in the record with a usage waiting time of "0" minutes.

[0034] If the authentication fails or if it is determined that the authenticated user is not the person who made the reservation (step S23: NO), the processing related to starting charging is terminated, and the processing proceeds to step S26. The user can restart the charging start operation by operating the charging start button 112d again. If it is determined that the authenticated user is a legitimate person who made the reservation and can use the charger 1 (step S23: YES), the processing unit 11 permits use of the charger 1 (step S24). For example, the processing unit 11 stores permission data or a permission flag indicating that use of the charger 1 is permitted in the storage unit 15. The permission data or the permission flag is retained for at least the usage period assigned to the user. When the usage period has elapsed, the permission data or the permission flag is erased. In a state in which use is permitted, the processing unit 11 starts power supply by controlling the output of the power supply unit 17 (step S25).

[0035] Next, the processing unit 11 determines whether there is a usage reservation record whose usage start deadline has expired, based on the reservation information stored in the storage unit 15 (step S26). The usage start deadline may be the same as the charging start time, or may be the charging start time plus a grace period. The grace period is, for example, 10 minutes (see FIG. 5). If it is determined that there is no usage reservation record whose usage start deadline has expired (step S26: NO), the processing unit 11 returns the process to step S11. If it is determined that there is a usage reservation record whose usage start deadline has expired (step S26: YES), the processing unit 11 updates the reservation information by lowering the priority of the usage reservation record whose usage start deadline has expired (step S27), and returns the process to step S11.

[0036] FIG. 6 is a schematic diagram showing an example of a reservation list in which the priority has been lowered. The method of lowering the priority in step S27 will be described. For example, the processing unit 11 changes the priority of the usage reservation record whose usage start deadline has passed to the end, and raises the priority of the other reservation records. Specifically, among the usage reservation records excluding the usage reservation record whose usage start deadline has passed, the processing unit 11 changes the charging start time of the usage reservation record with the earliest charging start time to the current time. In addition, the processing unit 11 changes the charging start time of the other usage reservation records to an earlier time by the amount that the charging start time of the previous usage reservation record has been advanced. The charging start time of the usage reservation record whose usage start deadline has passed is changed to the time after all charging indicated in the other usage reservation records has been completed. The processing unit 11 updates the usage waiting time in a similar manner.

[0037] In the example shown in Figure 5, the reservation record with reception number "1" is moved down to the last reservation record, and the priority of the reservation record with reception number "2" is raised from second to first. The charging start time of reception number "2" is changed from "13:30" to "13:10", and the waiting time for use is changed to "0" minutes. Similarly, the priority of the reservation record with reception number "3" is raised from third to second. The charging start time of reception number "3" is changed from "14:00" to "13:40", and the waiting time for use is changed to "30" minutes. The charging start time of reception number "1", which had the highest priority, is changed from "13:00" to "14:10", and the waiting time for use is changed to "60" minutes.

[0038] According to the charging system and the like configured in this manner according to the first embodiment, it is possible to suppress reservations for use of chargers 1 that are unlikely to be available, and to eliminate congestion caused by waiting in line for the chargers 1. The charger 1 according to the first embodiment is configured to accept reservations for use of the charger 1 on-site, which can prevent excessive provisional reservations that are not actually used. Furthermore, users can ascertain the waiting time for use of the charger 1 by referring to the reservation list 112a displayed on the display unit 12. This reduces the number of electric vehicles 4 waiting in line near the charger 1, preventing the formation of a queue of vehicles waiting for the charger 1. When multiple chargers 1 are installed, users can ascertain the waiting time for use of the charger 1 and can also search for an available charger 1. Furthermore, users can wait their turn at their leisure in a distant parking lot instead of waiting in line near the charger 1, allowing them to make effective use of their time for resting, eating, shopping, etc.

[0039] If the usage start deadline for the charger 1 is exceeded, the priority of the usage reservation record is lowered and the charging start time of other users who have reserved the charger 1 is brought forward. This reduces the time that the charger 1 is not in use, allowing the charger 1 to operate efficiently.

[0040] The charger 1 is configured to authenticate the user when reserving use and when using the charger, and to confirm that the user is the same, preventing unauthorized users from using the charger 1. It also prevents unauthorized reservations for use of the charger 1 from being made and the order of reservations from being changed, eliminating problems such as people cutting in line while waiting.

[0041] Furthermore, in the first embodiment, the user of the charger 1 is authenticated by authentication processing using a personal authentication information recording medium, such as credit card billing authentication, so there is no need for user registration to use the charger 1, and authentication processing can be performed using the personal authentication information recording medium that the user normally uses. Therefore, the charger 1 can be used by a wide variety of users.

[0042] The charger 1 may be configured to receive contact information such as email addresses of users via the operation unit 13 and record the information as a usage reservation record. When the charging start time is changed due to an increase in priority, the processing unit 11 may be configured to notify each user of the changed charging start time or usage waiting time using the contact information recorded as the usage reservation record. When the charging start time is changed for other reasons, such as the charging work being cut short early, the processing unit 11 may also be configured to notify each user of the changed charging start time. The user can be aware of the change in the charging start time or the waiting time for use, and can use the charger 1 more efficiently.

[0043] (Embodiment 2) Fig. 7 is a schematic diagram illustrating a configuration example of a charging system according to a second embodiment, and Fig. 8 is a block diagram illustrating a configuration example of the charging system according to the second embodiment. The charging system according to the second embodiment includes a charging reservation management device 5 configured separately from a charger 201. The charging reservation management device 5 is provided adjacent to the charger 201. That is, the charging reservation management device 5 is installed at a location where the charger 201 is used, for example, within the same premises. One or more chargers 201 are connected to the charging reservation management device 5. Fig. 7 shows an example in which a plurality of chargers 201 are connected to the charging reservation management device 5. Furthermore, the charging reservation management device 5 is connected to an authentication server 3 via a communication network N.

[0044] 8, the charging reservation management device 5 according to the second embodiment includes a processing unit 51, a display unit 52, an operation unit 53, an authentication information acquisition unit 54, a storage unit 55, a communication unit 56, and a local communication unit 57. The local communication unit 57 is a communication circuit that is connected to one or more chargers 201 and transmits and receives information related to charging reservations to and from the chargers 201. The other configurations are the same as those of the charger 201 according to the first embodiment, and therefore detailed description thereof will be omitted.

[0045] The configuration of the charger 201 according to the second embodiment is the same as that of the charger 201 according to the first embodiment, but differs in that the charger 201 is not connected to the authentication server 3 but is connected to the charging reservation management device 5. The charger 201 includes a communication circuit for transmitting and receiving information related to charging reservations to and from the charging reservation management device 5.

[0046] The charging reservation management device 5 manages charging reservations for one charger 201 or each of multiple chargers 201 by executing the same processes as those shown in Figures 3 and 4. However, in step S24, the processing unit 51 executes a process of transmitting permission data indicating that use of the charger 201 is permitted to the corresponding charger 201.

[0047] When the charger 201 receives permission data transmitted from the charging reservation management device 5, it stores the permission data or permission flag in memory. The permission data or permission flag is retained for at least the usage period assigned to the user. When the usage period has elapsed, the permission data or permission flag is erased. When usage is permitted, the control unit (not shown) of the charger 201 starts power supply by controlling the output of the power supply unit.

[0048] When a plurality of chargers 201 are connected to the charging reservation management device 5, the processing unit 51 displays, in step S22, charger identification information indicating each of the plurality of chargers 201 and a reservation list for each charger 201. The charger identification information is, for example, a number displayed on the charger 201 itself. The method for displaying the reservation list of each charger 201 is not particularly limited, but for example, the charging reservation management device 5 may be configured to accept input of charger identification information and display a reservation list of the input charger identification information.

[0049] As described above, according to the charging system of the second embodiment, similarly to the first embodiment, it is possible to provide a charging reservation management device 5 and a charging reservation management method that can suppress reservations for use of a charger 201 with low availability and eliminate congestion caused by waiting in line for the charger 201. [Explanation of symbols]

[0050] 1: Charger, 2, 5: Charging reservation management device, 3: Authentication server, 4: Electric vehicle, 5: Charging reservation management device, 11, 51: Processing unit, 12, 52: Display unit (input / output device), 13, 53: Operation unit (input / output device), 14, 54: Authentication information acquisition unit, 15, 55: Storage unit, 16, 56: Communication unit, 17: Power supply unit, 57: Local communication unit, 112: Reservation status display screen

Claims

1. A charging reservation management device provided in a charger for an electric vehicle or attached to the charger, an authentication information acquisition unit that acquires authentication information for authenticating a user of the charger; an operation unit for accepting a reservation for use of the charger; a display unit that displays information related to the reservation; a processing unit that executes a process related to a reservation for use of the charger; Equipped with The processing unit authenticating a user of the charger based on the authentication information acquired by the authentication information acquisition unit; When the operation unit accepts a reservation for use of the charger and the user is successfully authenticated, the operation unit allocates a reserved charging start time for the charger in the order of the reservation based on the accepted reservation for use of the charger; The display unit displays the status of the reservation for use of the charger by one or more users who have made a reservation for use. Charging reservation management device.

2. The display unit Displaying identification information indicating the electric vehicle of one or more users who have made a reservation, and the reserved charging start time or the waiting time for use of the charger, which are assigned in order of reservation. The charging reservation management device according to claim 1 .

3. The processing unit If use of the charger is not started by the reserved charging start time of the charger or by a use start deadline corresponding to the reserved charging start time, the order of use reservations related to the reserved charging start time is moved down. The charging reservation management device according to claim 1 .

4. The processing unit When a user who has made a reservation for use of the charger for the reserved charging start time is authenticated by the reserved charging start time of the charger or by a usage start deadline corresponding to the reserved charging start time, the use of the charger is permitted. The charging reservation management device according to claim 1 .

5. The processing unit The user is authenticated through a billing authentication process based on the authentication information acquired by the authentication information acquisition unit. The charging reservation management device according to any one of claims 1 to 4.

6. A charging reservation management method using an input / output device provided in a charger for an electric vehicle or attached to the charger, acquiring authentication information for authenticating a user of the charger; authenticating a user of the charger based on the acquired authentication information; When a reservation for use of the charger is accepted and user authentication is successful, a reserved charging start time for the charger is allocated in the order of use reservations based on the accepted reservation for use of the charger; Displaying the status of reservations for use of the charger by one or more users who have made reservations How to manage charging reservations.

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