JP6471469B2 - Charging stand and power supply system - Google Patents

Description

  The present invention relates to a charging stand for supplying power to a battery for charging, and a power supply system including the charging stand.

  Plug-in hybrid vehicles (PHEV) and electric vehicles (EV) are becoming widespread. A PHEV or EV user can charge a vehicle battery with a power supply device provided at home.

  In the case of collective housing and public facilities, a power feeding device that can be used jointly is provided. The user connects the power supply plug to the vehicle to charge the battery. Such a power supply device is preferably provided with a mechanism that prevents the power supply plug from being removed illegally, as described in Patent Document 1. For example, the power supply plug lock device described in Patent Literature 1 permits the removal of the power supply plug on the condition that personal authentication with the operator and authentication are established.

JP 2011-238536 A

  By the way, in apartment houses and public facilities, it is difficult to prepare a dedicated power supply device for each vehicle. Therefore, it is conceivable that a plurality of users share one power supply device. For example, in the power plug lock device described in Patent Document 1, the power plug cannot be removed unless personal authentication is established. For this reason, when the power supply plug lock device is in use, the next user cannot perform charging.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a charging stand that can be used without delay by a plurality of users, and a power feeding system including the charging stand.

  The invention disclosed herein employs the following technical means to achieve the above object. Note that the reference numerals in parentheses described in the claims and in this section indicate a corresponding relationship with specific means described in the embodiments described later as one aspect, and limit the technical scope of the invention. Not what you want.

In order to achieve the above object, the present invention provides a power supply plug (21) connected to a power supply target for charging a battery (11) provided in the power supply target (10), and supply of power to the power supply target. A control unit (26) for controlling the power supply, and an authentication unit (22) for performing personal authentication of the user, so that the connection between the power supply plug and the power supply target is not unintentionally released, and The charging stand is locked, and further includes a charge completion detection unit (25) for detecting full battery charge, and the control unit is a first power supply target that is a power supply target owned by the first user. When the connection between the power plug and the power plug is locked, the charging completion detection unit detects that the battery is fully charged, and the authentication unit performs personal authentication of a second user different from the first user. Is established, Even if the personal authentication by the first user is not established, if the lock is released and the connection between the first power supply target and the power supply plug is not released for a predetermined time after the lock is released, When the connection with the power supply plug is locked again , the first power supply target outputs an unlock permission signal for permitting the unlocking when the unlocking is permitted, and the control unit starts from the first power supply target. Receiving the unlock permission signal, detecting that the battery is fully charged by the charging completion detecting unit, and establishing the personal authentication of the second user different from the first user by the authenticating unit. On the condition that the personal authentication by the first user is not established, the lock is released .

  According to this, if the charging of the first power supply target battery is completed, the second user can release the lock regardless of the presence or absence of the personal authentication of the first user. That is, even if the first user does not return to the first power supply target, the second user can start charging the power supply target owned by the second user. Therefore, a plurality of users can charge without delay.

It is a figure which shows schematic structure of the electric power feeding system which concerns on 1st Embodiment. It is a block diagram which shows the detailed structure of an electric power feeding system. It is a figure which shows the control sequence of an electric power feeding system. It is a flowchart which shows the control flow of an electric power feeding system.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same reference numerals are given to the same or equivalent parts.

(First embodiment)
Initially, with reference to FIG. 1, schematic structure of the electric power feeding system which concerns on this embodiment is demonstrated.

  In the present embodiment, a power supply system for supplying power to a plug-in hybrid vehicle (PHEV) or an electric vehicle (EV) will be described.

  As shown in FIG. 1, the power supply system 100 includes a vehicle 10 that is a power supply target, a charging stand 20 that is responsible for supplying power to the vehicle 10, and a management center 30 that manages the operating status of the charging stand 20. A user uses the power supply system 100 by performing user registration with the administrator.

  The charging stand 20 has a power supply plug 21 for transmitting electric power to the vehicle 10. Moreover, the vehicle 10 has the inlet part 12 explained in full detail later. Power supply to the vehicle 10 is performed by connecting the power supply plug 21 to the inlet portion 12.

  The management center 30 is configured to output registration information such as a user ID to the charging stand 20 in response to a power supply request from a user. The charging station 20 collates registration information presented by the user with registration information input from the management center 30. That is, personal authentication is performed. As a result of the verification, if it is authenticated that the user is a regular registrant, the charging station 20 enables power supply to the vehicle 10.

  Next, with reference to FIG. 2, the detailed structure of the vehicle 10 and charging stand 20 which are electric power feeding objects is demonstrated. Note that both the first vehicle 10 </ b> A and the second vehicle 10 </ b> B include at least the elements described below, and will be described collectively as the vehicle 10.

  The vehicle 10 includes a battery 11 to be charged, an inlet unit 12 to which a power supply plug 21 is connected, and a charge monitoring unit 13 that controls the monitoring and charging operation of the battery 11.

  The battery 11 is a generally known secondary battery, and a lithium ion secondary battery, a nickel hydride battery, or the like can be employed.

  The inlet portion 12 is a connection destination of the power supply plug 21. The inlet portion 12 includes a detection sensor 14 that detects connection of the power plug 21 and a lock mechanism 15 that prevents unintentional removal of the power plug 21.

  The charge monitoring unit 13 is an electronic control device that monitors the charge state of the battery 11 and controls operations related to charging. When the charge monitoring unit 13 detects that the detection sensor 14 is connected to the inlet unit 12 of the power supply plug 21, the charge monitoring unit 13 adjusts the charge amount based on the remaining capacity of the battery 11, and then the power supply plug 21 and the battery 11. Are electrically connected to start charging the battery 11. Further, the charge monitoring unit 13 controls the lock mechanism 15 to lock the connection between the power supply plug 21 and the inlet unit 12. That is, the power supply plug 21 is prevented from being unintentionally removed from the vehicle 10.

  The charging stand 20 includes a power supply plug 21, an authentication unit 22 that performs personal authentication of the user, a display unit 23 that displays the state of the charging stand 20 to the user, and a current supply from the power supply 40 to the power supply plug 21. The switch 24 which turns on / off, the charge completion detection part 25 which detects completion of charge of the battery 11, the authentication part 22, the display part 23, and the control part 26 which controls the switch 24 are provided.

  The power supply plug 21 is configured to be inserted into the inlet portion 12, and current from the power source 40 is supplied to the battery 11 via the power supply plug 21 and the inlet portion 12. The power supply plug 21 has a fixing portion that is fitted and fixed to the lock mechanism 15 formed in the inlet portion 12. In the state where the connection between the power supply plug 21 and the inlet portion 12 is locked, the inlet portion 12 can not be removed.

  The authentication unit 22 performs personal authentication of the user who owns the vehicle 10. Registration information such as a user ID output from the vehicle 10 or the user is input to the authentication unit 22. The authentication unit 22 collates the input registration information with the registration information registered in the management center 30 in advance. That is, personal authentication is performed.

  The display unit 23 displays the state of the charging stand 20 and the state of the connected vehicle 10 to the user. The displayed contents include, for example, whether or not the charging stand 20 can be used, the state of charge of the battery 11 in the vehicle 10, the locked state of the connection between the power supply plug 21 and the inlet portion 12, or the usage fee.

  The switch 24 turns on and off the supply of current from the power supply 40 to the power supply plug 21. If personal authentication is established by the authentication unit 22, the power supply plug 21 is turned on. If the power supply plug 21 is not connected or personal authentication is not established, the authentication unit 22 is turned off. The switch 24 is not always necessary. A configuration in which the switch 24 is not formed and current is constantly supplied from the power supply 40 to the power supply plug 21 may be employed. In that case, on the vehicle 10 side, the electrical connection between the battery 11 and the inlet portion 12 is turned on and off to control the supply of current to the battery 11.

  The charging completion detection unit 25 detects that the full charging of the battery 11 has been completed by wireless or wired via the power supply plug 21. The state of charge of the battery 11 can be obtained, for example, by requesting information from the charge monitoring unit 13 that monitors the battery 11. Note that the state of charge of the battery 11 may be detected by another method.

  The control unit 26 controls the supply of current from the power supply plug 21. When receiving a request for charging from the vehicle 10, the control unit 26 causes the authentication unit 22 to execute personal authentication of the vehicle 10 or the user of the vehicle 10. When personal authentication is established, the switch 24 is controlled to be turned on to energize the power plug 21 from the power source 40.

  Further, the controller 26 requests the vehicle 10 to unlock the connection between the power supply plug 21 and the inlet portion 12 when removing the power supply plug 21. In the present embodiment, in particular, the unlocking is requested on the condition that the personal authentication of the user is established and that the charging completion detection unit 25 detects the charging completion of the battery 11. Upon receiving this request, the charge monitoring unit 13 controls the lock mechanism 15 to unlock the inlet unit 12 and the power supply plug 21.

  Next, with reference to FIGS. 1-4, the operation | movement flow and effect of the electric power feeding system 100 containing the charging stand 20 which concern on this embodiment are demonstrated.

  FIG. 3 shows a control sequence of the power supply system 100. FIG. 4 shows an operation flow of the vehicle 10 and the charging stand 20. Note that the flowchart shown in FIG. 4 shows an operation flow after time t5 in FIG.

  In the present embodiment, as illustrated in FIG. 1, a description will be given assuming a situation in which a plurality of vehicles 10 are assigned to one charging stand 20 in a parking space or the like. More specifically, after the first user parks the first vehicle 10A as the first power supply target in the parking space, the first user connects the power plug 21 to the first vehicle 10A and starts charging, and then the second user A situation is assumed in which the user parks a second vehicle 10B different from the first vehicle 10A in a parking space and charges the vehicle. The users in the claims refer to the first user and the second user in the present embodiment.

  First, at time t1 shown in FIG. 3, the first user parks the first vehicle 10A in the parking space. Then, the first user makes a request for personal authentication to the charging stand 20. As a method for requesting personal authentication, for example, a method of holding a dedicated card over a card reader provided in the charging stand 20, or manually inputting registration information such as a user ID can be considered. As another method, when the detection sensor 14 detects that the power supply plug 21 is connected to the inlet 12, the charge monitoring unit 13 transmits the registered information registered in advance via the power supply plug 21 or wirelessly. You may comprise so that it may output to the authentication part 22 with a wire communication. Here, an example will be described in which personal authentication is performed before insertion of the power supply plug 21 into the inlet portion 12.

  The authentication unit 22 in the charging station 20 collates the input registration information with the registration information registered in the management center 30 in advance. When the personal authentication is established, for example, the display unit 23 notifies that the authentication has been established. On the other hand, when the personal authentication is not established, the switch 24 is turned off, and charging cannot be started even if the power supply plug 21 is inserted into the inlet portion 12.

  Next, at time t2, the first user inserts the power supply plug 21 into the inlet portion 12 of the first vehicle 10A. The detection sensor 14 in the first vehicle 10 </ b> A detects the insertion of the power supply plug 21 and notifies the charge monitoring unit 13 to that effect.

  Next, at time t <b> 3, the charge monitoring unit 13 of the first vehicle 10 </ b> A locks the connection between the power supply plug 21 and the inlet unit 12 with respect to the lock mechanism 15 using the insertion of the power supply plug 21 by the detection sensor 14 as a trigger. To instruct. The lock mechanism 15 locks the power supply plug 21 and the inlet portion 12 so that the power supply plug 21 cannot be removed. Then, the control unit 26 in the charging stand 20 switches the switch 24 to the on state, and supplies power from the power source 40 to the battery 11 via the power supply plug 21. In addition, the control unit 26 causes the display unit 23 to display that the charging stand is being used, so that the user can be notified that the charging stand 20 is being used. While the battery 11 is being charged, the charge monitoring unit 13 monitors the state of charge of the battery 11 and controls the voltage and current supplied to the battery 11 according to the state of charge.

  Next, when the battery 11 is fully charged at time t <b> 4, the charge monitoring unit 13 in the first vehicle 10 </ b> A stops charging, such as by disconnecting the electrical connection between the inlet unit 12 and the battery 11. The charge monitoring unit 13 notifies the request from the charging completion detection unit 25 in the charging stand 20 or actively notifies the charging completion detection unit 25 that the charging of the battery 11 has been completed. Thereby, the charge completion detection unit 25 detects that the battery 11 is fully charged.

  After time t5, description will be made with reference to the flowchart shown in FIG. 4 in addition to the sequence shown in FIG.

  At time t5, the second user parks the second vehicle 10B in the parking space. Then, the second user makes a request for personal authentication to the charging stand 20 to charge the battery 11 of the second vehicle 10B.

  The power feeding system 100 executes Step S1 illustrated in FIG. Step S1 is a step in which the authentication unit 22 determines the presence or absence of external personal authentication. If there is no request for personal authentication, the power supply system 100 ends this control flow. In the example described here, as described above, since there is a request for personal authentication by the second user, the process proceeds to step S2.

  Step S2 is a step in which the authentication unit 22 determines whether personal authentication is established. The authentication unit 22 collates the registration information input from the second user or the second vehicle 10 </ b> B with the registration information registered in the management center 30. If personal authentication of the second user is established, the process proceeds to step S3, and if not established, this control flow is terminated.

  Step S3 is a step in which the control unit 26 determines whether or not the charging of the first vehicle 10A is completed. At time t4, if the charging completion detection unit 25 receives a notification from the charging monitoring unit 13 that the charging of the first vehicle 10A has been completed, the determination in step S3 is Yes and the process proceeds to step S4. If the notification has not been received, the first vehicle 10A is continuing to charge, and thus the control flow ends.

  In step S3, the control unit 26 may be configured to instruct the charging completion detection unit 25 again to inquire about the charging state of the battery 11 of the first vehicle 10A. The charge monitoring unit 13 of the first vehicle 10 </ b> A outputs the charge state of the battery 11 in response to a request from the charge completion detection unit 25. Here, if the battery 11 is in a fully charged state, the charge monitoring unit 13 outputs a charge completion signal to the control unit 26. The control unit 26 of the charging station 20 determines that the charging of the first vehicle 10A has been completed by receiving a charging completion signal at time t4 and receiving a charging completion signal again. That is, step S3 is Yes determination.

  If comprised in this way, the charge completion of a 1st vehicle 10A grasped | ascertained by the charging stand 20 side and the charge state grasped | ascertained by 1st vehicle 10A itself can be checked double. In the power supply system 100 having such a configuration, for example, when the time t5 is reached after a relatively long time from the time t4, that is, after the first vehicle 10A outputs the charging completion notification to the charging stand 20, the second use This is effective when it takes a long time before the person requests personal authentication. In such a case, it is considered that discharging of the battery 11 has progressed after notification of completion of charging, and charging may continue again at time t5. In step S <b> 3, it is possible to determine whether or not the first vehicle 10 </ b> A is fully charged by inquiring about the charge state of the battery 11 again with respect to the first vehicle 10 </ b> A.

  Moreover, if it is Yes determination in step S3, it will be preferable to display on the display part 23 that charge is completed or a charging stand is usable. According to this, the user can easily determine whether or not the charging stand 20 can be used.

  Step S1 to step S3 correspond to time t5 shown in FIG.

  If YES in step S3, the process proceeds to step S4. Step S <b> 4 is a step in which the control unit 26 requests the charge monitoring unit 13 of the first vehicle 10 </ b> A to release the lock between the inlet unit 12 and the power supply plug 21, that is, unlock it.

  Next, the charge monitoring unit 13 executes Step S5. Step S <b> 5 is a step in which the charge monitoring unit 13 controls the lock mechanism 15 in response to a request from the control unit 26 of the charging stand 20 to release the lock between the inlet unit 12 and the power supply plug 21.

  In the present embodiment, in addition to the establishment of the personal authentication of the second user in step S2, the personal authentication of the first user is performed on the condition that the charging of the battery 11 of the first vehicle 10A is completed in step S3. Unlocking is executed without the need for. That is, even if the first user does not return to the first vehicle 10A, the second user can start charging the second vehicle 10B owned by the second user. Therefore, a plurality of users can charge without delay.

  Next, the control unit 26 of the charging stand 20 executes Step S6. Step S6 is a step in which the control unit 26 confirms whether or not the unlocking between the inlet unit 12 and the power supply plug 21 has been reliably performed.

  If unlocking is not performed for some reason, the process proceeds to step S9. Step S9 is a step in which the control unit 26 compares the accumulated time from the execution of the unlock request in step S4 for the first time to step S9 with a preset time limit. If execution of step S9 is within the said time limit, step S9 will become No determination, will return to step S4 again, and the control part 26 will try release of a lock | rock. On the other hand, when the execution of step S9 is executed exceeding the time limit, a timeout occurs and the control flow ends.

  If unlocking is surely performed in step S5, step S6 is Yes and the process proceeds to step S7. The time limit is set to several minutes, for example.

  Step S <b> 7 is a step in which the control unit 26 instructs the display unit 23 to display that the lock between the inlet unit 12 and the power supply plug 21 has been released. The display unit 23 indicates to the user that the power plug can be removed or that the power plug 21 can be removed by displaying a message such as “unlocking”. Thereby, the user can visually recognize that the power supply plug 21 can be removed.

  Next, the control unit 26 executes Step S8. Step S <b> 8 is a step in which the control unit 26 determines whether the connection between the power supply plug 21 and the inlet portion 12 is released, that is, whether the power supply plug 21 is removed from the inlet portion 12. If the power plug 21 has been removed by the second user, a Yes determination is made, and this control flow ends.

  On the other hand, if the power plug 21 has not been removed even though the lock between the inlet portion 12 and the power plug 21 has been released, the determination is No and the process proceeds to step S10.

  Step S10 is a step in which the control unit 26 compares the accumulated time from the time when the Yes determination is first made in Step S6 to Step S10 with a preset time limit. If the execution of step S10 is within the above time limit, step S10 is No, returns to step S7 again, and waits for the user to remove the power plug 21. On the other hand, if the execution of step S10 is executed exceeding the time limit, a timeout occurs. If a timeout occurs in step S10, the process proceeds to step S11.

  Step S <b> 11 is a step in which the control unit 26 instructs the charge monitoring unit 13 to lock the inlet unit 12 and the power supply plug 21 again. The charge monitoring unit 13 controls the lock mechanism 15 to lock the inlet unit 12 and the power supply plug 21 again, and this control flow ends. As in step S9, the time limit is set to several minutes, for example. By setting a timeout for the removal of the power plug 21, even if the second user does not remove the power plug 21 for some reason, the power plug 21 and the inlet portion 12 of the first vehicle 10A again. The connection with can be locked. Therefore, unintentional removal of the power plug 21 can be prevented, and crime prevention and the like can be improved.

  Steps S4 to S11 correspond to time t6 shown in FIG. If the second user has removed the power plug 21 from the first vehicle 10A after step S7, the second user will connect the power plug 21 to the inlet 12 of the second vehicle 10B at time t7 shown in FIG. Can be inserted.

(Modification)
In the above embodiment, as a condition for unlocking the inlet portion 12 and the power supply plug 21, the establishment of personal authentication of the second user and the battery 11 of the first vehicle 10 </ b> A being fully charged are required. . On the other hand, the fact that the permission of the first user is obtained may be added to the unlocking condition. Conversely, if the first user does not permit the power plug 21 to be removed, personal authentication of the second user is established, and the battery 11 of the first vehicle 10A is fully charged. However, the control unit 26 does not request the charge monitoring unit 13 to unlock.

  The first user selects in advance whether to permit removal of the power plug 21 and instructs the first vehicle 10A. If removal of the power supply plug 21 is permitted, the first vehicle 10 </ b> A outputs an unlock permission signal to the control unit 26 of the charging station 20. The control unit 26 satisfies three conditions: establishment of personal authentication of the second user, that the battery 11 of the first vehicle 10A is fully charged, and that an unlock permission signal is input. In this case, an unlock request is made to the charge monitoring unit 13.

  The determination of whether or not the unlock permission signal is input may be executed at a timing before step S4 in the control flow shown in FIG. If the unlock permission signal has not been input, the control flow ends.

  Note that the selection of whether or not to permit removal of the power supply plug 21 is not necessarily performed in advance. For example, a 1st user may select via portable information terminals, such as a mobile phone and a tablet terminal.

  In this case, first, when the second user performs personal authentication with respect to the charging stand 20, the charge monitoring unit 13 in the first vehicle 10A uses a method such as e-mail to the first user to connect the power plug 21. Asks for the choice of whether or not to allow removal. When permitting, the first user transmits an output permission signal from the portable information terminal to the first vehicle 10A. Then, the charge monitoring unit 13, and thus the first vehicle 10 </ b> A, outputs an unlock permission signal to the control unit 26 triggered by the reception of the output permission signal.

  According to this, the 1st user can choose permission or non-permission for removal of power feeding plug 21 each time.

(Other embodiments)
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In the above-described embodiment and modification, the vehicle is described as an example of the power supply target, but the power supply target is not limited to the vehicle. The present invention can be applied to any mobile body that needs to be charged. For example, portable information terminals such as mobile phones and tablet terminals, vehicles other than automobiles such as electric assist bicycles and electric scooters, and the like can be targeted for power supply.

DESCRIPTION OF SYMBOLS 10 ... Power supply object (vehicle), 11 ... Battery, 12 ... Inlet part, 13 ... Charge monitoring part, 20 ... Charging stand, 21 ... Feed plug, 25 ... Charging Completion detection unit, 30 ... management center

Claims (9)

A power supply plug (21) connected to the power supply target for charging a battery (11) provided in the power supply target (10), and a control unit (26) for controlling the supply of power to the power supply target; An authentication unit (22) for performing personal authentication of the user,
A charging stand in which the connection between the power supply plug and the power supply target is locked so that the connection between the power supply plug and the power supply target is not unintentionally released.
Furthermore, a charge completion detection unit (25) for detecting full charge of the battery is provided,
In the state where the connection between the power feeding plug and the first power feeding target that is the power feeding target owned by the first user is locked in the control unit,
Detecting that the battery is fully charged by the charge completion detector;
Personal authentication of a second user different from the first user is established by the authentication unit;
If the personal authentication by the first user is not established, the lock is released,
If the connection between the first power supply target and the power supply plug is not released for a predetermined time after the lock is released, the connection between the first power supply target and the power supply plug is locked again ,
The first power supply target outputs an unlock permission signal for permitting release of the lock when permitting release of the lock;
The control unit receives the unlock permission signal from the first power supply target, the charge completion detection unit detects that the battery is fully charged, and the authentication unit detects the first The charging stand is characterized in that the lock is released even if personal authentication by the first user is not established, on condition that personal authentication of a second user different from the user is established . The control unit, when the condition is satisfied, requests the first power supply target to release the lock, and checks whether the lock is released or not. If the unlocking has not been performed, if the accumulated time since the first request to release the lock is within a preset time limit, request again to release the lock, if it exceeded the time limit, the charging stand according to claim 1, characterized in that to cancel the request to release the lock. A power supply plug (21) connected to the power supply target for charging a battery (11) provided in the power supply target (10), and a control unit (26) for controlling the supply of power to the power supply target; An authentication unit (22) for performing personal authentication of the user,
A charging stand in which the connection between the power supply plug and the power supply target is locked so that the connection between the power supply plug and the power supply target is not unintentionally released.
Furthermore, a charge completion detection unit (25) for detecting full charge of the battery is provided,
In the state where the connection between the power feeding plug and the first power feeding target that is the power feeding target owned by the first user is locked in the control unit,
Detecting that the battery is fully charged by the charge completion detector;
Personal authentication of a second user different from the first user is established by the authentication unit;
If the personal authentication by the first user is not established, the lock is released,
If the connection between the first power supply target and the power supply plug is not released for a predetermined time after the lock is released, the connection between the first power supply target and the power supply plug is locked again ,
The control unit, when the condition is satisfied, requests the first power supply target to release the lock, and checks whether the lock is released or not. If the unlocking has not been performed, if the accumulated time since the first request to release the lock is within a preset time limit, request again to release the lock, If the time limit is exceeded , the charging stand is stopped, and the request for releasing the lock is stopped . The first power supply target outputs an unlock permission signal for permitting release of the lock when permitting release of the lock;
The control unit receives the unlock permission signal from the first power supply target, the charge completion detection unit detects that the battery is fully charged, and the authentication unit detects the first and that another of the second user of the personal authentication is established from the user, the condition, without personal authentication established by the first user, according to claim 3, characterized in that to release the lock Charging stand as described in The unlock permission signal, the first power supply object is, according to claim 1, wherein the output to the trigger receiving an output permission signal transmitted from the portable information terminal owned by the first user The charging stand according to any one of 2, 4 and 4 . The first power supply target outputs, to the control unit, a charge completion signal indicating that the battery has been fully charged,
The control unit is configured to receive the charge completion signal from the first power supply target and to establish personal authentication of a second user different from the first user by the authentication unit. The charging stand according to any one of claims 1 to 5 , wherein the lock is released even if personal authentication by the first user is not established. Furthermore, a display unit (23) is provided,
7. The control unit according to claim 1, wherein the display unit displays a message indicating completion of charging on condition that the charging completion detection unit detects that the battery is fully charged. 8 . The charging stand according to any one of the above. Furthermore, a display unit (23) is provided,
Wherein, on condition that the lock is released, according to any one of claims 1 to 7, characterized in that to display the fact that the lock on the display unit is released Charging stand. The charging stand according to any one of claims 1 to 8 ,
The power supply target;
A management center for managing the operating status of the charging station,
The power supply system, wherein the authentication unit performs personal authentication based on information registered in advance in the management center.

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