Warehouse management systems and methods for managing warehouses.

Abstract

A parking facility management system (1A) comprises: a plurality of parking facility management devices (100A to 400A) respectively managing a plurality of parking facilities (10 to 40) which have a plurality of parking spaces and chargers; and a power supply management device (50A). The plurality of parking facility management devices each have: a first entrance / exit processing unit that determines whether an object can be accommodated or not; a first power supply allocation request unit that transmits, to the power supply management device (50A), a power supply allocation request relating to the object; and a charger control unit that, upon obtaining a power supply allocation permission notification determined in response to the transmission of the power supply allocation request, switches the relevant charger to a power supply available state. The power supply management device (50A) has a power supply allocation determination unit that, upon obtaining the power supply allocation request from a shelter management device, determines whether a power supply allocation for the obtained request is possible or not.

Description

Hangar management system and hangar management method

[0001] The present invention relates to a hangar management system and a hangar management method.

[0002] BACKGROUND ART In recent years, electric vehicles powered by battery power have become popular. As electric vehicles become more popular, there is a demand for facilities (charging facilities) for charging the batteries of electric vehicles.

[0003] The charging facility described above is installed in a parking lot of an apartment building or a large facility, for example, so that an electric vehicle can be charged while parked in the parking lot.

[0004] Patent No. 5544196

[0005] Some apartment buildings and large facilities have multiple parking lots. In these cases, management of entry and exit and management of charging processes may be performed separately for each parking lot, or may be performed centrally for all parking lots. In these various management situations, there has been a demand for technology that can appropriately coordinate entry management and charging management.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a hangar management system and a hangar management method that are capable of appropriately coordinating entry management and charging management for multiple hangars in which charging equipment is installed.

[0007] In order to achieve the above object, the hangar management system of the present invention comprises a plurality of hangar management devices that manage a plurality of hangars each having a plurality of storage spaces and chargers installed in the storage spaces, and a power management device connected to the plurality of hangar management devices, and each of the plurality of hangar management devices includes a first entry / exit processing unit that, when a stored object is generated that requests entry into a managed hangar, determines whether the stored object can be entered, a first power allocation request unit that, when the first entry / exit processing unit determines that the stored object that can be entered is an object that requires charging while being entered, sends a power allocation request for the stored object to the power management device, and, when the first power allocation request unit receives a power allocation permission notice sent from the power management device in response to sending the power allocation request, and a charger control unit that switches a charger installed in the storage to a state where it can supply power, and the power management device has an available power amount memory unit that stores available power amount information which is an upper limit of the amount of power that can be used simultaneously in the multiple storages, an in-use power amount memory unit that stores in-use power amount information which is information on the amount of power currently being used in the multiple storages, a power allocation determination unit that, when it receives the power allocation request from any of the storage management devices, determines whether or not power can be allocated for the received request based on the available power amount information stored in the available power amount memory unit and the in-use power amount information stored in the in-use power amount memory unit, and a determination result notification unit that, when it determines that power can be allocated for the received request, generates a power allocation permission notice for the stored object and sends the notice to the corresponding storage management device.

[0008] The hangar management system of the present invention is communicatively connected to a plurality of hangar management devices that respectively manage a plurality of hangars having a plurality of storage spaces and chargers installed in the storage spaces, and comprises: an available power amount memory unit that stores available power amount information, which is an upper limit of the amount of power that can be used simultaneously, for each of the plurality of hangars; an in-use power amount memory unit that stores in-use power amount information, which is information on the amount of power currently being used, for each of the plurality of hangars; a power allocation determination unit that, when a stored object is generated that requests storage and charging at one of the plurality of managed hangars, determines a hangar that can allocate power to the stored object based on the available power amount information stored in the available power amount memory unit and the in-use power amount information stored in the in-use power amount memory unit; and a second entry / exit processing unit that determines a hangar to which the stored object is to be stored from among the hangars that the power allocation determination unit has determined to be able to allocate power to the stored object, and sends an entry notification and a power allocation permission notification for the stored object to the hangar management device corresponding to the determined hangar.

[0009] Furthermore, the hangar management method of the present invention includes a hangar management system including a plurality of hangar management devices each managing a plurality of hangars having a plurality of storage spaces and chargers installed in the storage spaces, and a power management device connected to the plurality of hangar management devices and storing available power information, which is an upper limit of the amount of power that can be used simultaneously in the plurality of hangars, and in-use power information, which is information on the amount of power currently being used in the plurality of hangars. When a stored object requests to be stored in a hangar under management, each of the plurality of hangar management devices in the hangar management system determines whether the stored object can be stored, and determines that the stored object that is determined to be able to be stored is an object that requires charging while stored. Once this is determined, a power allocation request for the stored object is sent to the power management device, and when the power management device acquires the power allocation request from one of the storage facility management devices, it determines whether or not power can be allocated for the acquired request based on the stored available power information and power in use information, and if it determines that power can be allocated for the acquired request, it generates a power allocation permission notice for the stored object and sends it to the corresponding storage facility management device, and in response to sending the power allocation request, the storage facility management device that acquires the power allocation permission notice sent from the power management device switches the charger installed in the storage space where the stored object is stored to a power supply capable state.

[0010] In addition, the hangar management method of the present invention involves a hangar management system that is communicatively connected to a plurality of hangar management devices that respectively manage a plurality of hangars having a plurality of storage spaces and chargers installed in the storage spaces, storing available power information, which is the upper limit of the amount of power that can be used simultaneously, and in-use power information, which is information on the amount of power currently being used, for each of the plurality of hangars, and when a stored object is generated that requires storage and charging in one of the plurality of managed hangars, the system determines a hangar that can allocate power to the stored object based on the stored available power information and in-use power information, and determines a hangar to store the stored object from among the hangars determined to be able to allocate power to the stored object, and sends a storage entry notification and a power allocation permission notification for the stored object to the hangar management device corresponding to the determined hangar.

[0011] According to the hangar management system and hangar management method of the present invention, it is possible to appropriately perform warehousing management and charging management for multiple hangars in which charging equipment is installed.

[0012] FIG. 1 is an overall diagram showing the configuration of a parking lot management system according to a first embodiment of the present invention. FIG. 2 is a block diagram showing the detailed configurations of a parking lot management device and a power supply management device of the parking lot management system according to the first embodiment of the present invention. FIG. 3 is a sequence diagram showing operations performed within the parking lot management system according to the first embodiment of the present invention. FIG. 4 is an overall diagram showing the configuration of a parking lot management system according to a second embodiment of the present invention. FIG. 5 is a block diagram showing the detailed configurations of a parking lot management device and a power supply management device of the parking lot management systems according to the second and third embodiments of the present invention. FIG. 6 is a sequence diagram showing operations performed within the parking lot management system according to the second embodiment of the present invention. FIG. 7 is an overall diagram showing the configuration of a parking lot management system according to a third embodiment of the present invention. FIG. 8 is an overall diagram showing the configuration of a parking lot management system according to a fourth embodiment of the present invention. FIG. 9 is a block diagram showing the detailed configurations of a parking lot management device, a power supply management device, and a parking entry management device of the parking lot management system according to the fourth embodiment of the present invention. FIG. 10 is a sequence diagram showing operations performed within the parking lot management system according to the fourth embodiment of the present invention.

[0013] Below, several embodiments of the hangar management system of the present invention will be described using a parking lot management system as an example. As described below, the parking lot management system includes multiple parking lot management devices, which are an example of multiple hangar management devices, and a power management device connected to the multiple parking lot management devices. Each parking lot management device manages a parking lot, which is an example of a hangar. Electric vehicles, which are an example of stored objects to be charged, are parked in the parking lot.

[0014] 1 is an overall view showing the configuration of a parking lot management system 1A according to a first embodiment of the present invention. The parking lot management system 1A includes various devices installed in four parking lots, namely a first parking lot 10, a second parking lot 20, a third parking lot 30, and a fourth parking lot 40, a first parking lot management device 100A that manages the first parking lot 10, a second parking lot management device 200A that manages the second parking lot 20, a third parking lot management device 300A that manages the third parking lot 30, a fourth parking lot management device 400A that manages the fourth parking lot 40, and a power management device 50A.

[0015] The first parking lot 10 is a mechanical parking lot. The first parking lot 10 has a plurality of shelves 11 that are parking spaces, pallets 12 that are carriers for loading vehicles that are installed on each shelf 11, chargers 13 that are installed on each pallet 12, an entrance / exit gate 14, an operation panel 15 that is installed near the entrance / exit gate 14, and a drive device 16 that moves the pallet 12 between the corresponding shelf 11 and the entrance / exit gate 14. While FIG. 1 shows a case where the number of shelves 11 in the first parking lot 10 is eight, the number of shelves 11 is not limited to eight and may be one to seven, or nine or more.

[0016] FIG. 2 is a block diagram showing the detailed configuration of the first parking lot management device 100A to the fourth parking lot management device 400A and the power management device 50A.

[0017] The first parking lot management device 100A has a first storage unit 110, a first communication unit 120, and a first CPU 130A. The first storage unit 110 has a first shelf information storage unit 111 as a first storage space information storage unit that stores shelf information as storage space information indicating the current presence or absence of a vehicle for each shelf 11. The first communication unit 120 communicates with the power management device 50A.

[0018] The first CPU 130A has a first inventory processing unit 131, an operation control unit 132, a first power source allocation request unit 133, and a charger control unit 134.

[0019] When the first entry / exit processing unit 131 detects that a vehicle has requested entry into the first parking lot 10 based on operation information from the operation panel 15, it determines whether the vehicle can be entered into the first parking lot 10 based on the shelf information stored in the first shelf information memory unit 111.

[0020] The operation control unit 132 controls the opening and closing of the equipment in the first parking lot 10, specifically the drive unit 16 and the door (not shown) of the entrance / exit gate 14. When the first entrance / exit processing unit 131 determines that the vehicle that it has determined to be able to enter is an electric vehicle that has a storage battery and requires charging during entry (i.e., after entry), the first power source allocation request unit 133 transmits a power source allocation request for the electric vehicle to the power source management device 50A.

[0021] When the charger control unit 134 acquires a power supply allocation permission notification sent from the power supply management device 50A in response to the first power supply allocation request sent by the first power supply allocation request unit 133, it switches the charger 13 installed on the shelf 11 where the electric vehicle is stored to a state where it can supply power.

[0022] The second parking lot 20, the third parking lot 30, and the fourth parking lot 40 have the same configuration as the first parking lot 10, so detailed explanations will be omitted.

[0023] The power management device 50A has a second memory unit 51A, a second communication unit 52, and a second CPU 53A. The second memory unit 51A has an available power amount memory unit 511A and an in-use power amount memory unit 512A. The available power amount memory unit 511A stores available power amount information, which is the upper limit of the amount of power that can be used simultaneously in all of the first parking lot 10 to the fourth parking lot 40. The in-use power amount memory unit 512A stores in-use power amount information, which is information on the amount of power currently being used by the chargers in the first parking lot 10 to the fourth parking lot 40.

[0024] The second communication unit 52 communicates with the first parking lot management device 100A of the first parking lot 10, the second parking lot management device 200A of the second parking lot 20, the third parking lot management device 300A of the third parking lot 30, and the fourth parking lot management device 400A of the fourth parking lot 40.

[0025] The second CPU 53A has a power source allocation determination unit 531A and a determination result notification unit 532A. The power source allocation determination unit 531A acquires a power source allocation request from one of the parking lot management devices, and determines whether or not to allocate power in response to the acquired request based on the available power amount information stored in the available power amount storage unit 511A and the power amount information in use stored in the power amount storage unit 512A.

[0026] When the power source allocation determination unit 531A determines that power source allocation is possible for the acquired request, the determination result notification unit 532A generates a power source allocation permission notice for the electric vehicle and sends it to the corresponding parking lot management device. On the other hand, when the power source allocation determination unit 531A determines that power source allocation is not possible for the acquired request, the determination result notification unit 532A generates a power source allocation denial notice for the electric vehicle and sends it to the corresponding parking lot management device.

[0027] <Operation of Parking Lot Management System> As an example of the operation of the parking lot management system 1A according to this embodiment, a process executed when the electric vehicle E0 enters the first parking lot 10 will be described.

[0028] In this embodiment, the available power storage unit 511A of the power management device 50A stores, as available power information, the number of electric vehicles that can be charged simultaneously across the first parking lot 10 to the fourth parking lot 40. In this embodiment, this number is 12.

[0029] As shown in FIG. 1 , before electric vehicle E0 enters the parking lot, electric vehicles E1 to E10 and non-electric vehicles C1 to C6 are parked in one of the first to fourth parking lots 10 to 40. Specifically, six electric vehicles E1 to E6 are stored and charging in the first parking lot 10. Two electric vehicles E7 and E8 are stored and charging in the second parking lot 20, and one non-electric vehicle C1 is stored in the parking lot. Two electric vehicles E9 and E10 are stored and charging in the third parking lot 30, and three non-electric vehicles C2, C3, and C4 are stored in the parking lot. Two non-electric vehicles C5 and C6 are stored in the fourth parking lot 40. In other words, a total of ten electric vehicles E1 to E10 are charging in the first to fourth parking lots 10 to 40. The in-use energy storage unit 512A stores "10," the number of electric vehicles currently being charged, as in-use energy information.

[0030] 3 is a sequence diagram showing the operation executed in the parking lot management system 1A according to this embodiment. First, when a user of an electric vehicle E0 operates the operation panel 15 of the first parking lot 10 to request entry of the electric vehicle E0, the first entry / exit processing unit 131 of the first parking lot management device 100A acquires the corresponding operation information and detects that a vehicle has requested entry into the first parking lot 10 ("YES" in step S1).

[0031] When the first entry / exit processing unit 131 detects that a vehicle has requested entry into the first parking lot 10, it determines whether the electric vehicle E0, which is the vehicle requesting entry, can be entered into the first parking lot 10 based on the shelf information stored in the first shelf information memory unit 111 (step S2).

[0032] 1 , two of the eight shelves 11 are currently vacant in the first parking lot 10, and the first loading / unloading processing unit 131 recognizes that there is a vacant shelf 11 based on the shelf information and determines that electric vehicle E0 can be loaded into the first parking lot 10 ("YES" in step S2). When the first loading / unloading processing unit 131 determines that electric vehicle E0 can be loaded into the first parking lot 10, the operation control unit 132 controls the drive device 16 to move the pallet 12 carrying electric vehicle E0 to the loading / unloading entrance 14 and open the door of the loading / unloading entrance 14.

[0033] The user moves the electric vehicle E0 onto the pallet 12, gets off, and connects the charger 13 and the electric vehicle E0 with a cable to charge the vehicle while it is parked. When the user then operates the operation panel 15 to instruct the door to close, the operation control unit 132 closes the door of the entrance / exit gate 14 based on that operation.

[0034] The operation control unit 132 moves the pallet 12 carrying the electric vehicle E0 from the entrance / exit 14 to the storage shelf 11 (step S3). When the pallet 12 arrives at the predetermined shelf 11, the charger 13 is attached to a power supply facility (not shown) in the first parking lot 10.

[0035] Furthermore, when the first storage / retrieval processing unit 131 determines that the electric vehicle E0 that it has determined can be stored is an electric vehicle equipped with a storage battery and therefore a vehicle that requires charging while stored ("YES" in step S4), the first power source allocation request unit 133 transmits a power source allocation request for the electric vehicle E0 to the power source management device 50A (step S5). The first power source allocation request unit 133 may be configured to transmit a power source allocation request to the power source management device 50A when the electric vehicle E0 is an electric vehicle and the user of the electric vehicle E0 performs an operation to instruct charging processing while the vehicle is parked.

[0036] In the power management device 50A, the power allocation determination unit 531A acquires the power allocation request sent from the first parking lot management device 100A, and determines whether or not to allocate power for the acquired request based on the available power amount information stored in the available power amount memory unit 511A and the currently used power amount information stored in the currently used power amount memory unit 512A (step S6).

[0037] Here, the power source allocation determination unit 531A determines that the number of electric vehicles currently being charged, "10 vehicles," which is the information on the amount of electric energy in use stored in the power source storage unit 512A, does not reach the number of electric vehicles that can be charged simultaneously, "12 vehicles," which is the information on the amount of available electric energy stored in the available electric energy storage unit 511A, and therefore determines that a power source can be allocated to electric vehicle E0.

[0038] When the power source allocation determination unit 531A determines that a power source can be allocated to the electric vehicle E0, it generates a power source allocation permission notice as an allocation determination result notice for the electric vehicle E0. The determination result notifying unit 532A transmits the generated power source allocation permission notice to the corresponding first parking lot management device 100A (step S7).

[0039] In the first parking lot management device 100A, the charger control unit 134 receives the power supply allocation permission notice sent from the power supply management device 50A ("YES" in step S8). Upon receiving the power supply allocation permission notice, the charger control unit 134 switches the charger 13 installed on the shelf 11 storing the electric vehicle E0 to a state where power can be supplied. Specifically, the charger control unit 134 switches the power supply equipment to which the corresponding charger 13 is attached to the ON state (step S9).

[0040] If the first entry / exit processing unit 131 determines that the electric vehicle E0 cannot enter the first parking lot 10 ("NO" in step S2), the entry processing is not executed and the process returns to step S1.

[0041] Furthermore, if the first power source allocation request unit 133 determines that the vehicle requesting storage is not an electric vehicle equipped with a storage battery ("NO" in step S4), it does not make a power source allocation request and terminates the processing.

[0042] Furthermore, when the charger control unit 134 receives a power supply allocation denial notification ("NO" in step S8), the process does not switch to a power supply possible state, and ends the process.

[0043] When a vehicle requests entry into the second parking lot 20, the third parking lot 30, or the fourth parking lot 40, the same processing as steps S1 to S9 above is executed.

[0044] According to the first embodiment described above, for multiple parking lots where charging equipment is installed, the charging equipment in the multiple parking lots can be managed by determining whether or not entry is permitted for each parking lot, while also managing the charging equipment in the multiple parking lots collectively to determine whether or not charging is permitted. As a result, even if an upper limit on the amount of power usage is set based on the contracted power amount for all of the multiple parking lots, it is possible to appropriately determine whether or not entry is permitted and whether or not charging is permitted at the time of entry.

[0045] In the first embodiment described above, the number of electric vehicles that can be charged simultaneously is stored as available energy information in the available energy storage unit 511A, the number of electric vehicles that are currently being charged is stored as in-use energy information in the in-use energy storage unit 512A, and the power source allocation determination unit 531A has determined that charging of the electric vehicle E0 to be stored is possible when the number of electric vehicles that are currently being charged does not reach the number of electric vehicles that can be charged simultaneously. However, the present invention is not limited to this processing. The available power storage unit 511A may store an upper limit value of the amount of power (kW) that can be used simultaneously as available power information, the power usage storage unit 512A may store the total amount of power (kW) used by charging that is currently allocated as the power usage information, and the power source allocation determination unit 531A may determine that charging of the electric vehicle E0 to be stored is possible if the value obtained by subtracting the total amount of power (kW) used by charging that is currently allocated from the upper limit value of the amount of power (kW) that can be used simultaneously is greater than the amount of power used to charge the electric vehicle E0 to be stored.

[0046] By determining whether or not a power source can be allocated in this manner, an appropriate determination can be made even when the amount of output power during charging differs depending on the electric vehicle.

[0047] Second Embodiment <Configuration of Parking Lot Management System> Figure 4 is an overall diagram showing the configuration of a parking lot management system 1B according to a second embodiment of the present invention. The parking lot management system 1B according to the second embodiment has the same configuration as the parking lot management system 1A described in the first embodiment, except that instead of the first parking lot management device 100A, the second parking lot management device 200A, the third parking lot management device 300A, the fourth parking lot management device 400A, and the power management device 50A, it has a first parking lot management device 100B, a second parking lot management device 200B, a third parking lot management device 300B, a fourth parking lot management device 400B, and a power management device 50B. Therefore, a detailed description of parts having the same functions will be omitted.

[0048] 5 is a block diagram showing the detailed configuration of the first to fourth parking lot management devices 100B to 400B and the power management device 50B. The power management device 50B has a second storage unit 51B and a second CPU 53B.

[0049] The second storage unit 51B includes the same components as the second storage unit 51A, and further includes an allocation waiting information storage unit 513B. The allocation waiting information storage unit 513B stores power supply allocation waiting information, which will be described later, in response to instructions from the second CPU 53B.

[0050] The second CPU 53B has a power source allocation determination unit 531B and a determination result notification unit 532B. When the power source allocation determination unit 531B determines that power source allocation is not possible in response to an acquired power source allocation request, it generates power source allocation waiting information for the corresponding electric vehicle and stores it in the allocation waiting information storage unit 513B. When the power source allocation determination unit 531B determines that charging of an electric vehicle in a parking lot has been completed, thereby reducing the amount of electricity currently in use and making it possible to allocate a power source to the electric vehicle corresponding to the power source allocation waiting information stored in the allocation waiting information storage unit 513B, it sends this determination result to the determination result notification unit 532B and deletes the power source allocation waiting information stored in the allocation waiting information storage unit 513B.

[0051] When the power source allocation determination unit 531B determines that power source allocation is possible for the electric vehicle corresponding to the power source allocation waiting information, the determination result notification unit 532B generates a power source allocation permission notification for the electric vehicle and sends it to the corresponding parking lot management device.

[0052] <Operation of Parking Lot Management System> As an example of the operation of the parking lot management system 1B according to this embodiment, a process executed when the electric vehicle E0 enters the first parking lot 10 will be described.

[0053] In this embodiment, the number of electric vehicles that can be charged simultaneously, "12 vehicles", is stored as available power information in the available power storage unit 511B of the power management device 50B.

[0054] 4, before electric vehicle E0 enters the parking lots, electric vehicles E1 to E10 are stored and being charged in the first to fourth parking lots 10 to 40, as in the first embodiment, and general vehicles C1 to C6 are also stored there. In addition, charging vehicles E11 and E12 are stored and being charged in the fourth parking lot 40. Furthermore, electric vehicle E13 is stored in the first parking lot 10, and electric vehicle E14 is stored in the second parking lot 20, and these electric vehicles E13 and E14 are waiting to be charged.

[0055] Due to this storage state, the number of electric vehicles currently being charged, "12 vehicles", is stored as the electric energy in use information in the electric energy in use storage unit 512B.

[0056] In addition, the allocation waiting information storage unit 513B stores information about the electric vehicle E13 as power supply waiting information for the first parking lot 10, and stores information about the electric vehicle E14 as power supply waiting information for the second parking lot 20.

[0057] As described above, various information is stored in the power management device 50B, and when vehicles are stored in each parking lot, when a user of the electric vehicle E0 performs an operation on the operation panel 15 of the first parking lot 10 to request the entry of the electric vehicle E0, the corresponding first parking lot management device 100B performs processing similar to steps S1 to S5 described in the first embodiment and sends a power allocation request to the power management device 50B.

[0058] When the power source allocation determination unit 531B of the power management device 50B receives a power source allocation request for electric vehicle E0, it determines that the number of electric vehicles currently being charged, "12," which is the information on the amount of electric energy in use stored in the energy in use memory unit 512B, has reached the number of electric vehicles that can be charged simultaneously, "12," which is the information on the amount of electric energy available stored in the energy available memory unit 511B, and that it is impossible to allocate a power source to electric vehicle E0 ("YES" in step S11).

[0059] If the power source allocation determination unit 531B determines that it is not possible to allocate power to the electric vehicle E0, it generates power source allocation waiting information for the electric vehicle E0 and stores it in the allocation waiting information storage unit 513B, and also generates a power source allocation denial notification as an allocation determination result notification for the electric vehicle E0 and sends it to the corresponding first parking lot management device 100B (step S7).

[0060] In the first parking lot management device 100B, the charger control unit 134 receives the power supply non-allocation permission notice sent from the power supply management device 50B ("NO" in step S8). When the charger control unit 134 receives the power supply non-allocation permission notice, it causes the power supply equipment to which the charger 13 installed on the shelf 11 storing the electric vehicle E0 is attached to be kept in an OFF state.

[0061] Thereafter, the power management process executed by the parking lot management system 1B will be described with reference to the sequence diagram of FIG.

[0062] In the first to fourth parking lots 10 to 40, each electric vehicle to be charged is charged for a preset time (for example, two hours), and when this time has elapsed, the charger control unit switches the power supply equipment to which the corresponding charger is attached to the OFF state. For example, when the charging time for electric vehicle E10 in the third parking lot 30 has elapsed, the charger control unit 334 switches the corresponding power supply equipment to the OFF state ("YES" in step S11).

[0063] When the charger control unit 334 switches the power supply equipment to the OFF state, it generates a charging completion notification for the electric vehicle E10 and transmits it to the power management device 50B (step S12). In the power management device 50B, the power source allocation determination unit 531B acquires the charging completion notification for the electric vehicle E10 transmitted from the third parking lot management device 300B, and updates the number of electric vehicles currently being charged, which is the information on the amount of electric energy in use stored in the amount of electric energy in use storage unit 512B, by decrementing it by one (step S13).

[0064] When the power source allocation determination unit 531B determines that the amount of electricity currently being used has decreased due to a decrease in the number of electric vehicles currently being charged, and that it is now possible to allocate a power source to an electric vehicle corresponding to the power source allocation waiting information stored in the allocation waiting information storage unit 513B ("YES" in step S14), it sends this determination result to the determination result notification unit 532B and deletes the power source allocation waiting information stored in the allocation waiting information storage unit 513B (step S15).

[0065] Based on the determination result by the power source allocation determination unit 531B, the determination result notification unit 532B generates a power source allocation permission notification for the electric vehicle E13, which has the highest priority among the power source vehicles waiting for power, and sends it to the corresponding first parking lot management device 100B (step S16).

[0066] In the first parking lot management device 100B, when a power supply allocation permission notification for the electric vehicle E13 sent from the power supply management device 50B is received, the charger control unit 134 switches the power supply equipment for the charger 13 installed on the shelf 11 where the electric vehicle E13 is stored to the ON state (step S17).

[0067] In the above-mentioned step S14, when the power source allocation determination unit 531B determines that it is not possible to allocate a power source to the electric vehicle corresponding to the power source allocation waiting information stored in the allocation waiting information storage unit 513B ("NO" in step S14), the processing is terminated.

[0068] According to the second embodiment described above, when an amount of electricity close to the contracted amount of electricity is being used in multiple parking lots and it is not possible to charge a newly entering electric vehicle, a charging wait process is performed, so that the charging process can be started when it becomes possible to charge the electric vehicle.

[0069] <Third embodiment> <Configuration of parking lot management system> Figure 7 is an overall diagram showing the configuration of a parking lot management system 1C according to a third embodiment of the present invention. The parking lot management system 1C according to the third embodiment has the same configuration as the parking lot management system 1B described in the second embodiment, except that instead of the first parking lot management device 100B, the second parking lot management device 200B, the third parking lot management device 300B, the fourth parking lot management device 400B, and the power supply management device 50B, there are a first parking lot management device 100C, a second parking lot management device 200C, a third parking lot management device 300C, a fourth parking lot management device 400C, and a power supply management device 50C. Therefore, a detailed description of parts having the same functions will be omitted.

[0070] The available power storage unit 511C of the power management device 50C stores available power information for each parking lot group into which multiple parking lots are classified and / or for each parking lot. The in-use power storage unit 512C stores the in-use power information for each parking lot group or for each parking lot. The allocation waiting information storage unit 513C stores power source allocation waiting information for each parking lot.

[0071] When the power source allocation determination unit 531C receives a power source allocation request from any of the parking lot management devices, it determines whether or not power can be allocated in response to the received request based on the available power amount information and in-use power amount information of the corresponding parking lot group or parking lot. Furthermore, when the power source allocation determination unit 531C detects that charging of any electric vehicle in any of the parking lots has been completed, it determines whether or not power can be allocated to the electric vehicle corresponding to the power source allocation waiting information based on the available power amount information, in-use power amount information, and power source allocation waiting information of the corresponding parking lot group or parking lot.

[0072] <Operation of Parking Lot Management System> As an example of the operation of the parking lot management system 1C according to this embodiment, a process executed when the electric vehicle E0 enters the first parking lot 10 will be described.

[0073] In this embodiment, the power management device 50C classifies and manages the first parking lot 10 and the second parking lot 20 as parking lots in the first parking lot group G1, and the third parking lot 30 and the fourth parking lot 40 as parking lots in the second parking lot group G2, out of the first parking lot 10 to the fourth parking lot 40 that it manages.

[0074] In this embodiment, the available energy storage unit 511C of the power management device 50C stores the number of electric vehicles that can be charged simultaneously, "6," as the available energy information for the first parking lot group G1, and the number of electric vehicles that can be charged simultaneously, "4," as the available energy information for the second parking lot group G2. In addition to the available energy information for the first parking lot group G1 and the second parking lot group G2, the available energy storage unit 511C also stores the number of electric vehicles that can be charged simultaneously, "2," as available energy information specific to the first parking lot 10. The available energy information specific to the first parking lot 10 is information on the amount of available energy allocated to a specific user through a contract that allows constant charging, and is not included in the available energy information for the first parking lot group G1.

[0075] 7, before electric vehicle E0 enters the first parking lot 10, six electric vehicles E1 to E6 are stored and being charged. Of the electric vehicles E1 to E6, two electric vehicles E1 and E2 are being charged using the available power amount allocated specifically to the first parking lot 10, and four electric vehicles E3 to E6 are being charged using the available power amount allocated to the first parking lot group G1.

[0076] Two electric vehicles E7 and E8 are stored and being charged in the second parking lot 20, and one general vehicle C1 is also stored in the second parking lot 20. The electric vehicles E7 and E8 are being charged using the available power allocated to the first parking lot group G1.

[0077] The third parking lot 30 houses two electric vehicles E9 and E10 that are being charged, as well as three general vehicles C2, C3, and C4. The electric vehicles E9 and E10 are being charged using the available power allocated to the second parking lot group G2. The fourth parking lot 40 houses two general vehicles C5 and C6.

[0078] Due to this storage status, the in-use power amount storage unit 512C stores the number of electric vehicles being charged with the available power amount allocated to the first parking lot group G1 as the amount of power being used for the first parking lot group G1, which is "6 vehicles." Furthermore, the in-use power amount storage unit 512C stores the number of electric vehicles being charged with the available power amount allocated to the second parking lot group G2 as the amount of power being used for the second parking lot group G2, which is "2 vehicles." Furthermore, the in-use power amount storage unit 512C stores the number of electric vehicles being charged with the available power amount allocated specifically to the first parking lot 10, which is "2 vehicles."

[0079] As described above, various information is stored in the power management device 50C, and when vehicles are stored in each parking lot, when a user of the electric vehicle E0 performs an operation on the operation panel 15 of the first parking lot 10 to request the entry of the electric vehicle E0, the corresponding first parking lot management device 100C performs processing similar to steps S1 to S5 described in the first embodiment and sends a power allocation request to the power management device 50C.

[0080] When the power source allocation determination unit 531C of the power management device 50C receives a power source allocation request for the electric vehicle E0 in the first parking lot 10, it determines whether or not to allocate power in response to the received request based on the available energy information of the first parking lot group G1 corresponding to the first parking lot 10 and the available energy information specific to the first parking lot 10, as well as the energy usage information of the first parking lot group G1 and the energy usage information specific to the first parking lot 10 (step S6).

[0081] Here, the power source allocation determination unit 531C recognizes that the number of currently charging electric vehicles ("6"), which is the electric energy usage information for the first parking lot group G1 stored in the electric energy usage storage unit 512C, has reached the number of simultaneously chargeable electric vehicles ("6"), which is the available electric energy usage information for the first parking lot group G1 stored in the available electric energy storage unit 511C. The power source allocation determination unit 531C also recognizes that the number of currently charging electric vehicles ("2") with respect to the available electric energy specific to the first parking lot 10 has reached the number of simultaneously chargeable electric vehicles ("2") with respect to the available electric energy specific to the first parking lot 10. Based on the recognized information, the power source allocation determination unit 531C determines that it is impossible to allocate a power source to the electric vehicle E0 in the first parking lot 10, even if there is still surplus electric energy usage for the first parking lot 10 to the fourth parking lot 40 as a whole.

[0082] When the power source allocation determination unit 531C determines that it is not possible to allocate power to the electric vehicle E0, it generates power source allocation waiting information for the electric vehicle E0 and stores it in the allocation waiting information storage unit 513C, and also generates a power source allocation denial notification as an allocation determination result notification for the electric vehicle E0 and sends it to the corresponding first parking lot management device 100C (step S7).

[0083] In the first parking lot management device 100C, the charger control unit 134 receives the power supply non-allocation permission notice sent from the power supply management device 50C ("YES" in step S8). When the charger control unit 134 receives the power supply non-allocation permission notice, it causes the power supply equipment to which the charger 13 installed on the shelf 11 storing the electric vehicle E0 is attached to be kept in an OFF state.

[0084] Thereafter, while the electric vehicle E0 is parked in the first parking lot 10, when the charging process for any of the electric vehicles in the first parking lot 10 to the fourth parking lot 40 is completed, the corresponding charger control unit switches the power supply equipment to which the corresponding charger is attached to the OFF state ("YES" in step S11), and generates and transmits a charging completion notification for the electric vehicle to the power management unit 50C (step S12).

[0085] When the power source allocation determination unit 531C receives a charging completion notification from the corresponding parking lot management device, it updates the number of electric vehicles currently being charged in the corresponding parking lot stored in the power usage memory unit 512C by decrementing it by one (S13). For example, when the charging process for electric vehicle E1 in the first parking lot 10 is completed and a charging completion notification for electric vehicle E1 is sent from the parking lot management device 100C to the power source management device 50C, the power source allocation determination unit 531C decrements the number of electric vehicles currently being charged specific to the first parking lot 10 stored in the power usage memory unit 512C to "1."

[0086] When the power source allocation determination unit 531C determines that the amount of electricity currently in use has decreased due to a decrease in the number of electric vehicles currently charging in the first parking lot 10, and that it is now possible to allocate power to the electric vehicle corresponding to the power source allocation waiting information for the first parking lot 10 stored in the allocation waiting information storage unit 513C ("YES" in step S14), it sends this determination result to the determination result notification unit 532C and deletes the power source waiting information for electric vehicle E0, which is one piece of power source allocation waiting information corresponding to the first parking lot 10 stored in the allocation waiting information storage unit 513C (S15).

[0087] The determination result notification unit 532C generates a power source allocation permission notification for the electric vehicle E0 based on the determination result by the power source allocation determination unit 531C, and transmits the notification to the corresponding first parking lot management device 100C (S16).

[0088] In the first parking lot management device 100C, when the power supply allocation permission notification for the electric vehicle E0 sent from the power supply management device 50C is obtained, the charger control unit 134 switches the power supply equipment for the charger 13 installed on the shelf 11 where the electric vehicle E0 is stored to the ON state (step S17).

[0089] In the above-described embodiment, if the contract allowing constant charging for the first parking lot 10 is terminated, the number of electric vehicles that can be charged simultaneously, which is stored as the available power information specific to the first parking lot 10, is changed from "two" to "one."

[0090] According to the third embodiment described above, by setting a power source allocation in advance for each of a plurality of groups into which a plurality of parking lots are classified and for each parking lot, power management can be performed according to the usage pattern. For example, in a commercial facility, parking lots may be grouped into parking lots used by employees and parking lots used by visitors, and the number of power sources allocated to each parking lot may be different. In this case, the amount of available power for each group or parking lot may be different depending on the time of day or day of the week, etc.

[0091] <Fourth embodiment> <Configuration of parking lot management system> Figure 8 is an overall diagram showing the configuration of a parking lot management system 1D according to a fourth embodiment of the present invention. The parking lot management system 1D according to the fourth embodiment has a first parking lot management device 100D, a second parking lot management device 200D, a third parking lot management device 300D, a fourth parking lot management device 400D, and a power supply management device 50D instead of the first parking lot management device 100A, the second parking lot management device 200A, the third parking lot management device 300A, the fourth parking lot management device 400A, and the power supply management device 50A, and further has a warehousing management device 60. Other than this, the parking lot management system 1D has the same configuration as the parking lot management system 1A described in the first embodiment, and therefore detailed description of parts having the same functions will be omitted.

[0092] FIG. 9 is a block diagram showing the detailed configuration of the first parking lot management device 100D to the fourth parking lot management device 400D, the power supply management device 50D, and the entry management device 60.

[0093] The first parking lot management device 100D includes a first communication unit 120 and a first CPU 130D. The first CPU 130D includes an operation control unit 132 and a charger control unit 134.

[0094] The power management device 50D has a second memory unit 51D and a second CPU 53D. The second memory unit 51D has an available power amount memory unit 511D and an in-use power amount memory unit 512D. The available power amount memory unit 511D stores the number of electric vehicles that can be charged simultaneously across the first parking lot 10 to the fourth parking lot 40 as available power amount information for the entire first parking lot 10 to the fourth parking lot 40. The available power amount memory unit 511D also stores the number of electric vehicles that can be charged simultaneously in each parking lot as available power amount information for each of the first parking lot 10 to the fourth parking lot 40.

[0095] The in-use power amount storage unit 512D stores the number of electric vehicles currently being charged in all of the first parking lot 10 to the fourth parking lot 40 as in-use power amount information for all of the first parking lot 10 to the fourth parking lot 40. The in-use power amount storage unit 512D also stores the number of electric vehicles currently being charged in each of the first parking lot 10 to the fourth parking lot 40 as in-use power amount information for each of the first parking lot 10 to the fourth parking lot 40.

[0096] When the power source allocation determination unit 531D receives a chargeable device determination request (described later) from the entry management device 60, it extracts parking lots that can allocate power to the electric vehicle that is requesting entry and power source allocation, based on the available power amount information stored in the available power amount memory unit 511D and the power amount information in use stored in the power amount memory unit 512D.

[0097] The determination result notification unit 532D transmits the chargeable device determination result generated by the power source allocation determination unit 531D to the inventory management device 60.

[0098] The inventory management device 60 has a third storage unit 61, an input unit 62, an output unit 63, a third communication unit 64, and a third CPU 65. The third storage unit 61 has a second shelf information storage unit 611 as a second storage space information storage unit that stores, for each shelf 11, shelf information as storage space information indicating the current presence or absence of a vehicle.

[0099] The input unit 62 inputs operation information from the user. The output unit 63 outputs information obtained from the third CPU 65 as audio or display information. The input unit 62 and the output unit 63 may be integrated into a touch panel. The third communication unit 64 communicates with the first parking lot management device 100D to the fourth parking lot management device 400D and the power management device 50D.

[0100] The third CPU 65 has a second entry / exit processing unit 651, a second power source allocation request unit 652, and a display control unit 653. When the second entry / exit processing unit 651 detects that a vehicle has entered a parking lot and is requesting charging, it generates a chargeable device determination request to obtain information about parking lots where charging is available and transmits the request to the power management device 50D. The second entry / exit processing unit 651 also obtains a chargeable device determination result transmitted from the power management device 50D in response to the transmitted chargeable device determination request, and determines a parking lot where the vehicle should be entered based on the obtained chargeable device determination result and the information stored in the second shelf information storage unit 611.

[0101] The display control unit 653 causes the output unit 63 to output information about the parking lot to be entered as determined by the second entry / exit processing unit 651 and information about power allocation obtained from the power management device 50D.

[0102] <Operation of Parking Lot Management System> As an example of the operation of the parking lot management system 1D according to this embodiment, the process executed when the electric vehicle E0 enters one of the first to fourth parking lots 10 to 40 will be described.

[0103] In this embodiment, the usable energy storage unit 511D of the power management device 50D stores, as usable energy information for the entire first parking lot 10 to the fourth parking lot 40, the number of electric vehicles that can be charged simultaneously in the entire first parking lot 10 to the fourth parking lot 40, which is "12 vehicles." The usable energy storage unit 511D also stores, as usable energy information for each of the first parking lot 10 to the fourth parking lot 40, the number of electric vehicles that can be charged simultaneously in each parking lot, which is "6 vehicles."

[0104] 8, before electric vehicle E0 enters the parking lot, six electric vehicles E1 to E6 are stored and being charged in the first parking lot 10. Two electric vehicles E7 and E8 are stored and being charged in the second parking lot 20, and one general vehicle C1 is also stored. Two electric vehicles E9 and E10 are stored and being charged in the third parking lot 30, and three general vehicles C2, C3, and C4 are stored. Two general vehicles C5 and C6 are stored in the fourth parking lot 40. In other words, a total of 10 electric vehicles are currently charging in the first parking lot 10 to the fourth parking lot 40, and the number of electric vehicles currently charging in all of the first parking lot 10 to the fourth parking lot 40 ("10 vehicles"), the number of electric vehicles currently charging in the first parking lot 10 ("6 vehicles"), the number of electric vehicles currently charging in the second parking lot 20 ("2 vehicles"), the number of electric vehicles currently charging in the third parking lot 30 ("2 vehicles"), and the number of electric vehicles currently charging in the fourth parking lot 40 ("0 vehicles") are stored as information on the amount of electric power currently being charged in the electric power in use memory unit 512D.

[0105] 10 is a sequence diagram showing the operation of the parking lot management system 1D according to this embodiment. First, when a user of the electric vehicle E0 requests the entry of the electric vehicle E0 from the input unit 62 of the entry management device 60, the second entry / exit processing unit 651 acquires the corresponding operation and detects that a vehicle has requested entry into one of the first parking lot 10 to the fourth parking lot 40 ("YES" in step S21).

[0106] When the second entry / exit processing unit 651 detects that a vehicle has requested entry, it determines whether the electric vehicle E0 can be entered into any of the first parking lot 10 to the fourth parking lot 40 based on the shelf information stored in the second shelf information storage unit 611 (step S22).

[0107] The second storage / retrieval processing unit 651 recognizes, based on the shelf information, that there is an available shelf in any of the first parking lot 10 to the fourth parking lot 40, and determines that the electric vehicle E0 can be stored therein ("YES" in step S22). When the second storage / retrieval processing unit 651 determines that the electric vehicle E0 can be stored therein, it recognizes that the vehicle is an electric vehicle and therefore requires charging ("YES" in step S23), and generates a charger availability determination request to obtain information about parking lots where the electric vehicle E0 can be charged, and transmits the request to the power management device 50D (step S24).

[0108] In the power management device 50D, the power source allocation determination unit 531D acquires the chargeable device determination request transmitted from the entry management device 60, and extracts parking lots capable of charging the electric vehicle E0 based on the available energy information stored in the available energy storage unit 511D and the in-use energy information stored in the in-use energy storage unit 512D. In this example, the power source allocation determination unit 531D extracts the second parking lot 20, the third parking lot 30, and the fourth parking lot 40, where the number of charging vehicles is less than six, as parking lots capable of charging, and generates a chargeable device determination result including identification information for these parking lots. The determination result notification unit 532D transmits the chargeable device determination result generated by the power source allocation determination unit 531D to the entry management device 60 (step S25).

[0109] In the entry management device 60, the second entry / exit processing unit 651 acquires the chargeable device determination result sent from the power supply management device 50D, and determines the parking lot where the electric vehicle E0 is to be entered from among the information on the second parking lot 20, the third parking lot 30, and the fourth parking lot 40, based on the acquired chargeable device determination result and the information stored in the second shelf information storage unit 611. Here, the second entry / exit processing unit 651 determines the second parking lot 20, which is included in the chargeable device determination result and has an available shelf, as the parking lot where the electric vehicle E0 is to be entered.

[0110] When the second entry / exit processing unit 651 determines that the electric vehicle E0 will be stored in the second parking lot 20, it generates an entry notification notifying the second parking lot management device 200D that the electric vehicle E0 will be stored in the second parking lot management device 200D (step S26).

[0111] In the second parking lot management device 200D, the operation control unit 232 acquires the entry notification sent from the entry management device 60, controls the drive device 26 to move the pallet 22 carrying the electric vehicle E0 to the entry / exit entrance 24, and opens the door of the entry / exit entrance 24.

[0112] The user moves the electric vehicle E0 onto the pallet 22 in the second parking lot 20, gets off, and connects the charger 23 and the electric vehicle E0 with a cable to charge the vehicle while it is parked. When the user then operates the operation panel 25 to instruct the door to close, the operation control unit 232 closes the door of the entrance / exit gate 24.

[0113] The operation control unit 232 moves the pallet 22 carrying the electric vehicle E0 from the entrance / exit 24 to the shelf 21 where the electric vehicle E0 is to be stored (step S27). When the pallet 22 arrives at the predetermined shelf 21, the charger 23 is attached to a power supply facility (not shown) in the second parking lot 20.

[0114] Furthermore, since the entering vehicle is recognized as an electric vehicle in step S23 and the second entry / exit processing unit 651 has determined in step S26 that a parking lot where charging is possible is the entry destination, the second power source allocation request unit 652 determines to perform charging processing for the entering electric vehicle E0 ("YES" in step S28). The second power source allocation request unit 652 generates a power source allocation request for electric vehicle E0 for the second parking lot 20 that has been determined as the entry destination for electric vehicle E0, and transmits the request to the power management device 50D.

[0115] In the power management device 50D, the power source allocation determination unit 531D acquires the power source allocation request transmitted from the entry management device 60, updates the information in the in-use power amount storage unit 512D based on the acquired request, and generates a power source allocation notification for the electric vehicle E0 for the second parking lot 20. The determination result notification unit 532D transmits the generated power source allocation notification to the corresponding second parking lot management device 200D (step S30).

[0116] In the second parking lot management device 200D, the charger control unit 234 acquires the power supply allocation notification transmitted from the power supply management device 50D ("YES" in step S31). Upon acquiring the power supply allocation notification, the charger control unit 234 switches the charger 23 installed on the shelf 21 storing the electric vehicle E0 to a state where it can supply power. Specifically, the charger control unit 234 switches the power supply equipment to which the corresponding charger 23 is attached to the ON state (step S32).

[0117] If the second entry / exit processing unit 651 determines that the electric vehicle E0 cannot be entered into any of the parking lots ("NO" in step S22), the entry processing is not executed and the process returns to step S21.

[0118] Furthermore, if the second entry / exit processing unit 651 determines that the vehicle requesting entry is not an electric vehicle ("NO" in step S23), the processing proceeds to step S26 without proceeding to step S25, and the parking lot into which the electric vehicle E0 will be entered is determined based on the information stored in the second shelf information storage unit 611.

[0119] Furthermore, if charging processing is not performed on the entering vehicle, specifically, if it is recognized in step S23 that the entering vehicle is not an electric vehicle, if the second entry / exit processing unit 651 determines in step S26 that there is no parking lot where charging is possible as a destination for the electric vehicle E0, or if a parking lot where charging is not possible is determined as the destination for the entry, the processing ends without performing charging processing ("NO" in step S28).

[0120] According to the above fourth embodiment, when the entry / exit management device centrally determines whether an electric vehicle can enter a plurality of parking lots where charging equipment is installed, it can take into account the charging processing status at the plurality of parking lots and determine a parking lot where charging processing is possible as the entry destination.

[0121] In the fourth embodiment described above, the case where the power management device 50D extracts information about a plurality of parking lots in response to the acquired chargeable device determination request and transmits the extracted information to the entry management device as a chargeable device determination result has been described, but the power management device 50D may determine one optimal parking lot in response to the chargeable device determination request and transmit the result as a chargeable device determination to the entry management device 60. By configuring in this manner, the processing load on the entry management device 60 can be reduced.

[0122] The power management device 50D and the inventory management device 60 described in the fourth embodiment may be configured as an integrated device.

[0123] In the first to fourth embodiments described above, the parking lots managed by the parking lot management systems 1A to 1D are described as being mechanical parking lots, but this is not limited to this and the parking lots may also be self-driving parking lots or surface parking lots.

[0124] Furthermore, in the first to fourth embodiments described above, the hangar management system is a parking lot management system, the managed hangar is a parking lot, and the stored object is a vehicle; however, this is not limited to this. The stored object in the parking lot may be a kick scooter or a bicycle. The hangar may also be a parking facility for a drone or a robot, and the stored object may be a drone or a robot equipped with a storage battery. The charger may be equipment that supplies power to the stored drone or robot. The hangar management device may be a management device that manages these. Other items that the hangar can store and power may be any item that can be stored in the hangar and has a storage battery, such as electronic devices such as portable power supply devices, or containers or storage boxes that have a storage battery and use the power supplied by the battery for refrigeration or ventilation.

[0125] Although the embodiments of the present invention have been described above, the embodiments can be modified or varied based on the above disclosure. All components of the above embodiments and all features described in the claims may be individually extracted and combined, unless they contradict each other.

[0126] DESCRIPTION OF SYMBOLS 1A, 1B, 1C, 1D Parking lot management system 10, 20, 30, 40 Parking lot 11, 21, 31, 41 Shelf 12, 22, 32, 42 Pallet 13, 23, 33, 43 Charger 14, 24, 34, 44 Entrance / exit gate 15, 25, 35, 45 Operation panel 16, 26, 36, 46 Drive device 50A, 50B, 50C, 50D Power supply management device 51A, 51B, 51C, 51D Second memory unit 52 Second communication unit 53A, 53B, 53C, 53D Second CPU 60 Intake management device 61 Third memory unit 62 Input unit 63 Output unit 64 Third communication unit 65 Third CPU DESCRIPTION OF SYMBOLS 100A to 100D, 200A to 200D, 300A to 300D, 400A to 400D Parking lot management device 110 First memory unit 111 First shelf information memory unit 120 First communication unit 130A to 130D First CPU 131 First entry / exit processing unit 132, 232 Operation control unit 133 First power source allocation request unit 134, 234 Charger control unit 511A, 511B, 511C, 511D Available power amount memory unit 512A, 512B, 512C, 512D Power amount in use memory unit 513B, 513C Allocation waiting information memory unit 531A, 531B, 531C, 531D Power source allocation determination unit 532A, 532B, 532C, 532D Determination result notification unit 611 Second shelf information storage unit 651 Second storage / retrieval processing unit 652 Second power supply allocation request unit 653 Display control unit

Images