Power supply system and power supply destination switching method

Abstract

To switch the facility to which power is supplied from an electric vehicle as needed.SOLUTION: A control system 4 of a charge / discharge system 10 according to one embodiment of the present invention includes a control unit 403 that transmits a command to switch the power supply destination from an electric vehicle 1, when the power supply destination from the electric vehicle 1 is a facility (water supply pump 5) other than an elevator 3 and a remote call is registered from a user terminal 6b. A charge / discharge device 2 includes a control unit 205 that controls the power supply destination from the electric vehicle 1 to be switched from the facility to the elevator 3, on the basis of the command.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a power supply system and a power supply destination switching method. [Background technology]

[0002] Conventionally, there is known a technology that enables the use of lifelines such as electricity, water, and gas using a driving power source from an emergency generator when these facilities are cut off due to the occurrence of a disaster such as an earthquake. For example, Patent Document 1 discloses a technology that, when the supply of lifelines is stopped, starts up the emergency generator and opens an on-off valve of an emergency water supply pipe, thereby supplying tap water stored in a water tank to each dwelling unit in a building from an emergency water supply port by driving a pump using the emergency generator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-333877 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, in the energy sector, efforts are underway to put into practical use V2X (Vehicle to X) systems that connect electric vehicles with homes, buildings, power grids, etc., enabling the mutual supply of electricity between these. For example, by using a V2X-compatible charging / discharging device, even if a building experiences a power outage due to a wide-area disaster, it is possible for an electric vehicle connected to the charging / discharging device to supply power to building facilities such as elevators via the charging / discharging device.

[0005] However, if one charging / discharging device is to supply power to multiple facilities in a building at the same time, it is necessary to prepare a charging / discharging device with a large battery capacity and multiple power systems. However, the installation cost of such a charging / discharging device is high. In addition, the device is large, so a large installation space is required. Therefore, in many cases, the number of facilities to which power is supplied from a charging / discharging device is one.

[0006] However, in this case, for example, during a power outage, while power is being supplied from the electric vehicle to the water pump in the building via the charging / discharging device, no power is being supplied to the elevators in the building, and users cannot use the elevators.

[0007] The present invention has been made in consideration of the above circumstances, and has an object to make it possible to switch equipment to which power is supplied from an electric vehicle as necessary. [Means for solving the problem]

[0008] An electric power supply system according to one aspect of the present invention includes an elevator installed in a building, a charging / discharging device capable of supplying electric power stored in a battery of an electric vehicle to facilities in the building including the elevator, and a server that provides an elevator remote call registration service to a user's mobile terminal. The server of the electric power supply system according to one aspect of the present invention includes a first control unit that transmits a command to switch the destination of the electric power supply from the electric vehicle when the destination of the power supply from the electric vehicle is a facility other than the elevator and a remote call is registered from the user's mobile terminal. The charging / discharging device includes a second control unit that performs control to switch the destination of the power supply from the electric vehicle from the facility to the elevator based on the command. Effect of the Invention

[0009] According to at least one aspect of the present invention, it becomes possible to switch facilities to which power is supplied from an electric vehicle as needed. Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0010] [Figure 1] 2 is a block diagram showing a configuration example of a control system of the charge / discharge system according to one embodiment of the present invention. FIG. [Diagram 2] 2 is a block diagram showing an example of the hardware configuration of each device constituting the charge / discharge system according to the embodiment of the present invention. FIG. [Diagram 3] 5 is a flowchart showing an example of a procedure of a power supply destination switching process performed by the charge / discharge system according to one embodiment of the present invention. [Figure 4] 5 is a flowchart showing an example of a procedure of a power supply destination switching process performed by the charge / discharge system according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, examples of modes for carrying out the present invention (hereinafter referred to as "embodiments") will be described with reference to the accompanying drawings. The present invention is not limited to the embodiments, and various numerical values ​​in the embodiments are merely examples. In addition, in this specification and drawings, the same components or components having substantially the same functions are given the same reference numerals, and duplicated explanations will be omitted.

[0012] <Outline of charging / discharging system configuration> First, the configuration of a charge / discharge system 10 according to an embodiment of the present invention will be described with reference to Fig. 1. Fig. 1 is a block diagram showing an example of the configuration of a control system of the charge / discharge system 10.

[0013] As shown in FIG. 1, a charge / discharge system 10 (an example of a power supply system) includes an electric vehicle 1, a charge / discharge device 2, an elevator 3 provided in a building (not shown), a control system 4 for the elevator 3, a water supply pump 5 in the building, an administrator terminal 6a, and a user terminal 6b.

[0014] The charge / discharge device 2 and the control system 4 are communicatively connected via a network N1, and the elevator 3 and the control system 4 are communicatively connected via a network N2. The networks N1 and N2 are configured with dedicated lines or the like. The control system 4 and the manager terminal 6a are communicatively connected via a communication line N3, and the control system 4 and the user terminal 6b are communicatively connected via a communication line N4. The communication lines N3 and N4 are configured with public lines such as the Internet, mobile communication networks, or the like.

[0015] Electric vehicle 1 has a battery (not shown), receives power from charging / discharging device 2, and supplies power stored in the battery to charging / discharging device 2. Electric vehicle 1 may be permanently installed in a parking lot of a building, or in the event of a disaster, electric vehicles of an apartment management company, a hospital, an elevator maintenance service company, or the like may be moved to the premises of a building. Also, if the remaining battery power of electric vehicle 1 connected to charging / discharging device 2 is insufficient, another electric vehicle may be moved from the facility and placed on standby.

[0016] The charging / discharging device 2 is a device that enables charging of the electric vehicle 1 and supplying the power discharged from the battery of the electric vehicle 1 to facilities in the building such as a water supply pump 5, and is also called a hybrid PCS (Power Conditioning System). The charging / discharging device 2 stores the power generated by a solar power generation facility (not shown) installed in the building in the battery of the electric vehicle 1, and supplies the power stored in the battery of the electric vehicle 1 to the facilities in the building.

[0017] The elevator 3 transports users of the elevator 3, such as building residents, to their desired destination floors by ascending and descending in a hoistway (not shown) provided in the building. The elevator 3 is normally powered by electricity supplied from a commercial power source or a solar power generation facility, and in the event of a power outage, is powered by electricity supplied from the battery of the electric vehicle 1 via the charging / discharging device 2.

[0018] The control system 4 (an example of a server) monitors the operating status of the elevator 3 and the operating conditions of various facilities in the building, such as the air conditioning system. The control system 4 also provides a service of displaying operating status information of the building's facilities to a manager's terminal 6a held by the building manager, owner, etc. The control system 4 also provides a service of registering a call to the elevator 3 based on remote call information for the elevator 3 transmitted from a user's terminal 6b held by a user of the elevator 3 (hereinafter also referred to as a "call registration service").

[0019] In this embodiment, the control system 4 controls the switching of the supply destination of the power supplied from the electric vehicle 1 during a power outage according to the situation. The control of the switching by the control system 4 is performed by transmitting a power supply destination switching command to the charging / discharging device 2.

[0020] Furthermore, when switching the power supply destination, the control system 4 transmits various notifications to the manager terminal 6a or the user terminal 6b.

[0021] The water supply pump 5 is a device that supplies water stored in a water tank (not shown) to each faucet installed in the tenants or residences in the building. The water supply pump 5 is normally driven by power supplied from a commercial power source, and in the event of a power outage, is driven by power supplied from the battery of the electric vehicle 1 via the charging / discharging device 2.

[0022] In this embodiment, the target equipment other than the elevator 3 that receives power supply from the charging / discharging device 2 during a power outage is the water supply pump 5, but the present invention is not limited to this. The equipment that receives power supply from the charging / discharging device 2 during a power outage may be other equipment such as lighting equipment, as long as it is equipment that requires a power supply.

[0023] The manager terminal 6a is a mobile terminal carried and operated by a manager or owner of the building. The display unit (not shown) of the manager terminal 6a displays information on the operation status of the building's facilities transmitted from the control system 4 in response to operations by the operator. In addition, the display unit (not shown) of the manager terminal 6a displays the contents of various notifications transmitted from the control system 4.

[0024] The user terminal 6b is a portable terminal carried and operated by a resident of the building who uses the elevator 3. When an operation to register a call for the elevator 3 is input by an operator, the user terminal 6b transmits a call registration request (hereinafter also referred to as a "remote call") to the control system 4. In addition, the contents of various notifications transmitted from the control system 4 are displayed on the display unit (not shown) of the manager terminal 6a.

[0025] [Charge / discharge device] As shown in FIG. 1 , the charge / discharge device 2 includes an AC / DC conversion unit 201, a charging unit 202, a charge / discharge switching unit 203, a discharging unit 204, a control unit 205, a power measurement unit 206, an elevator transceiver unit 207, a power switching unit 208, a supply destination switching unit 209, and an external communication unit 210.

[0026] The AC / DC conversion unit 201 converts AC power supplied from a commercial power source into DC power and supplies it to the charging unit 202. The AC power supplied from the commercial power source also includes AC power obtained by converting DC power obtained from a solar power generation facility (not shown). The AC / DC conversion unit 201 also converts DC power supplied from the electric vehicle 1 into AC power and outputs it to the power switching unit 208. The charging unit 202 outputs the DC power supplied from the AC / DC conversion unit 201 to the charge / discharge switching unit 203 .

[0027] The charge / discharge switching unit 203 supplies the DC power supplied from the charging unit 202 to the electric vehicle 1. Furthermore, the charge / discharge switching unit 203 discharges the power stored in the battery of the electric vehicle 1 during a power outage, and outputs the DC power supplied from the battery by discharging to the discharging unit 204. The discharge unit 204 outputs the DC current supplied from the charge / discharge switching unit 203 to the AC / DC conversion unit 201 .

[0028] The control unit 205 (an example of a second control unit) controls the operation of each unit constituting the charging / discharging device 2. For example, based on a power supply destination switching command transmitted from the control system 4, the control unit 205 controls the supply destination switching unit 209 to switch the power supply destination from the water supply pump 5 to the elevator 3. Information on the amount of power consumed by the water supply pump 5 is measured by the power measurement unit 206. The power measuring unit 206 measures the amount of power consumed by the water supply pump 5 when the destination of the power supply from the charging / discharging device 2 is the water supply pump 5 .

[0029] The elevator transmitter / receiver unit 207 transmits and receives various signals or data to and from the elevator 3. Based on the control by the control unit 205, the power switching unit 208 switches the power source that powers the building facilities between a commercial power source and the battery of the electric vehicle 1, and outputs the power supplied from the switched power source to the supply destination switching unit 209.

[0030] Based on the control by the control unit 205, the supply destination switching unit 209 switches the equipment to which the power input from the power switching unit 208 is supplied between the water supply pump 5 and the elevator 3. Note that when there is no power outage or the like and power is being supplied from a commercial power source, the supply destination switching unit 209 does not switch the power supply destination and supplies power to all equipment in the building that requires a power supply.

[0031] The external communication unit 210 controls the transmission and reception of various signals or data between the control system 4 and the external communication unit 210 via the network N1.

[0032] [Elevator] As shown in FIG. 1 , the elevator 3 includes a power input unit 301, a charge / discharge device communication unit 302, an elevator control unit 303, and an external communication unit 304.

[0033] The power input unit 301 receives an input of the power output from the supply destination switching unit 209 of the charge / discharge device 2 . The charge / discharge device communication unit 302 controls the transmission and reception of various signals or data between the charge / discharge device 2 . The elevator control unit 303 controls the operation of each device or equipment constituting the elevator 3, including the movement operation of a car (not shown) to a call-registered floor or a destination floor. The external communication unit 304 controls the transmission and reception of various signals or data between the control system 4 and the external communication unit 304 via the network N2.

[0034] [Control System] As shown in FIG. 1, the control system 4 includes an elevator communication unit 401, a charge / discharge device communication unit 402, a control unit 403, a manager terminal communication unit 404, and a user terminal communication unit 405.

[0035] The elevator communication unit 401 controls the transmission and reception of various signals or data between the elevator 3 and the elevator 3 via the network N2. The charge / discharge device communication unit 402 controls the transmission and reception of various signals or data between the charge / discharge device 2 and the charge / discharge device 2 via the network N1.

[0036] The control unit 403 (an example of a first control unit) monitors the operation status of the elevator 3 and the operating status of various facilities in the building, and controls remote operation of these as necessary. The control unit 403 also controls the display operation on the display unit (not shown) of the manager terminal 6a or the user terminal 6a regarding the provision of the operation status information display service or the call registration service.

[0037] Furthermore, when the control unit 403 receives a remote call transmitted from the user terminal 6b and the operation of the elevator 3 has stopped due to a power outage or the like, the control unit 403 performs control to transmit a power supply destination switching command to the charging / discharging device 2. The power supply destination switching command transmitted to the charging / discharging device 2 here is a command to switch the power supply destination from the water supply pump 5 to the elevator 3.

[0038] In addition, when the control unit 403 detects the completion of service by the elevator 3 based on a remote call, it controls the transmission of a power supply destination switching command to the charging / discharging device 2 to switch the power supply destination from the elevator 3 to the water supply pump 5.

[0039] The control unit 403 also performs control to transmit various notifications to the manager terminal 6a or the user terminal 6b before or after switching of the power supply destination.

[0040] The manager terminal communication unit 404 controls the transmission and reception of various signals or data to and from the manager terminal 6a via the communication line N3. The user terminal communication unit 405 controls the transmission and reception of various signals or data between the user terminal 6b and the user terminal 6b via the communication line N4.

[0041] <Example of computer hardware configuration> Next, the configuration (hardware configuration) of a control system of each device constituting the charge / discharge system 10 shown in FIG. 1 will be described with reference to FIG.

[0042] Fig. 2 is a block diagram showing an example of the hardware configuration of each device constituting the charging / discharging system 10. A calculator 20 shown in Fig. 2 is an example of hardware used as a computer capable of operating as the charging / discharging device 2 and the control system 4 of the charging / discharging system 10 according to this embodiment. These devices constituting the charging / discharging system 10 according to this embodiment realize the processing related to the power supply destination switching method of the present invention by the calculator 20 (computer) executing a program and the respective functional blocks shown in Fig. 1 cooperating with each other.

[0043] The computer 20 includes a control unit 21, a non-volatile storage 22, a display unit 23, an operation input unit 24, and a communication I / F (Interface) 25, which are all connected to a bus B.

[0044] The control unit 21 includes a central processing unit (CPU) 211, a read only memory (ROM) 212, and a random access memory (RAM) 213.

[0045] The CPU 211 reads out program code of software for implementing each function according to this embodiment from the ROM 212, and loads and executes the program code in the RAM 213. Note that the computer 20 may include a processing device such as an MPU (Micro-Processing Unit) instead of the CPU 211, and the computer 20 may use both the CPU 211 and an MPU.

[0046] In the RAM 213, variables and parameters generated during the arithmetic processing by the CPU 211 are temporarily written.

[0047] The non-volatile storage 22 may be, for example, a hard disk drive (HDD), a solid state drive (SSD), a non-volatile random access memory (NVRAM), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a non-volatile memory card, etc. In addition to an operating system (OS) and various parameters, programs for operating the computer 20, etc. are recorded in the non-volatile storage 22. The programs may be stored in the ROM 212.

[0048] The program is stored in the form of a computer-readable program code, and the CPU 211 sequentially executes operations according to the program code. In other words, the ROM 212 or the non-volatile storage 22 is used as an example of a computer-readable non-transitory recording medium that stores a program executed by a computer.

[0049] The display unit 23 is, for example, a monitor configured with an LCD (Liquid Crystal Display) or the like, and displays the results of the processing performed by the computer 20, and the like. The operation input unit 24 is configured with, for example, a keyboard, a mouse, a touch sensor, etc., and generates an operation signal according to an operation by a user and supplies it to the CPU 211. Note that the display unit 23 and the operation input unit 24 may be integrated as a touch panel.

[0050] The communication I / F 25 is configured with a communication device that controls communication with other devices.

[0051] <Power supply destination switching process> Next, the power supply destination switching process performed by the charging / discharging system 10 according to the present embodiment will be described with reference to Fig. 3 and Fig. 4. Fig. 3 and Fig. 4 are flowcharts showing an example of the procedure of the power supply destination switching process performed by the charging / discharging system 10.

[0052] 3 is started when the building is in a power outage state and the destination of the power supply from the charging / discharging device 2 is the water supply pump 5. First, the control unit 403 (see FIG. 1) of the control system 4 determines whether or not a remote call for the elevator 3 has been received from the user terminal 6b (step SA1). If it is determined in step SA1 that a remote call has not been received (if the determination in step SA1 is NO), the control unit 403 repeats the determination in step SA1.

[0053] On the other hand, if it is determined in step SA1 that a remote call has been received (if step SA1 is determined to be YES), the control unit 403 sends a power supply destination switching command to the charging / discharging device 2 via the charging / discharging device communication unit 402, instructing the charging / discharging device 2 to switch the power supply destination from the water supply pump 5 to the elevator 3 (step SA2).

[0054] Next, the control unit 403 of the management system 4 notifies the manager terminal 6a via the manager terminal communication unit 404 that there is a user in the elevator 3 (step SA3). Next, the control unit 403 notifies the user terminal 6b via the user terminal communication unit 405 of a request to refrain from using water (step SA4). For example, the control unit 403 transmits a message to the user terminal 6b such as "Please refrain from using water as the power supply destination of the emergency power supply will be switched from the water supply pump to the elevator." By carrying out such processing, the residents of the building can understand that the water will not be available in the future, and can take action to refrain from using water.

[0055] If the facility to which the power is supplied from the electric vehicle 1 is a lighting device in a building, the control unit 403 can notify the manager terminal 6a and the user terminal 6b of a notice that the lighting device will be unavailable. In other words, the control unit 403 notifies the manager terminal 6a and the user terminal 6b of inconveniences that will occur due to the power supply being cut off before switching the power supply destination.

[0056] Next, the control unit 403 transmits information indicating that the notification to the manager terminal 6a and the user terminal 6b has been completed to the charging / discharging device 2 via the charging / discharging device communication unit 402 (step SA5).

[0057] The external communication unit 210 of the charging / discharging device 2 receives the power supply destination switching command transmitted from the control system 4 in step SA2 (step SB1). Next, the control unit 205 of the charging / discharging device 2 reads out the power supplied to the water supply pump 5 measured by the power measurement unit 206 (step SB2). Next, the control unit 205 determines whether the power supplied to the water supply pump 5 has fallen below a predetermined threshold (step SB3). If many users stop using the water supply after seeing the notification of the request to refrain from using the water supply transmitted to the user terminal 6b in step SA4, it is expected that the power supplied to the water supply pump 5 will fall below the predetermined threshold.

[0058] If it is determined in step SB3 that the power supply to the water supply pump 5 is not equal to or lower than the predetermined threshold (if the determination is NO in step SB3), the control unit 205 determines whether or not a predetermined threshold time has elapsed since the power supply destination switching command was received in step SB1 (step SB4). The threshold time can be set to a value of about 3 to 5 minutes, but the present invention is not limited to this, and other times may be set as the threshold time. If it is determined in step SB4 that the threshold time has not elapsed (if the determination is NO in step SB4), the control unit 205 returns to step SB2 and performs processing.

[0059] On the other hand, if it is determined in step SB4 that the threshold time has elapsed (if step SB4 is determined as YES), control unit 205 instructs supply destination switching unit 209 to switch the power supply destination from the feedwater pump 5 to the elevator 3 (step SB5). Based on the instruction in step SB5, supply destination switching unit 209 switches the power supply destination from the feedwater pump 5 to the elevator 3, and power supply to the elevator 3 is started.

[0060] Then, the elevator 3 supplied with power from the charge / discharge device 2 starts up (step SC1).

[0061] Next, the control unit 205 of the charging / discharging device 2 transmits information on the completion of switching of the power supply destination to the control system 4 via the external communication unit 210 (step SB6 in FIG. 4). Then, the charging / discharging device communication unit 402 of the control system 4 receives the information on the completion of switching of the power supply destination transmitted from the charging / discharging device 2 in step SB6 (step SA6).

[0062] Next, the control unit 403 of the control system 4 notifies the manager terminal 6a via the communication line N3 that the switch to the elevator 3 as the power supply destination has been completed (step SA7). The control unit 403 also notifies the user terminal 6b via the communication line N4 that the water supply is temporarily unavailable (step SA8). By receiving such a notification, the resident of the building who owns the user terminal 6b can understand that the water supply is now unavailable.

[0063] 3, the power supply destination of the power source is switched to the elevator 3, so that the elevator 3 starts up (step SC1). Next, the elevator control unit 303 of the elevator 3 performs the elevator operation service (step SC2). The elevator operation service is a service in which, based on a remote call from the user terminal 6b, a car (not shown) is moved to the registered floor of the call, and after the user gets on the car, the user is transported to the destination floor.

[0064] Next, the elevator control unit 303 judges whether the service has been completed (step SC3). That is, the elevator control unit 303 judges whether the car has arrived at the destination floor and the passenger has disembarked. If it is judged in step SC3 that the service has not been completed (if the judgment in step SC3 is NO), the elevator control unit 303 returns to step SC2 and performs processing. That is, the provision of the service is continued.

[0065] On the other hand, if it is determined in step SC3 that the service is completed (if a YES determination is made in step SC3), elevator control unit 303 pauses elevator 3 and transmits an elevator pause signal to the charge / discharge device 2 via the charge / discharge device communication unit 302 (step SC4). Then, elevator transceiver unit 207 of the charge / discharge device 2 receives the elevator pause signal transmitted from elevator 3 in step SC4 (step SB7).

[0066] Next, the control unit 205 of the charging / discharging device 2 instructs the supply destination switching unit 209 to switch the power supply destination from the elevator 3 to the water supply pump 5 (step SB8). Based on this instruction, the supply destination switching unit 209 performs switching, and power supply to the water supply pump 5 is resumed. Next, the control unit 205 transmits information about the completion of power supply destination switching to the management system 4 via the external communication unit 210 (step SB9). Then, the charging / discharging device communication unit 402 of the management system 4 receives the information about the completion of power supply destination switching transmitted from the charging / discharging device 2 in step SB9 (step SA9).

[0067] Next, the control unit 403 of the management system 4 notifies the manager terminal 6a via the communication line N3 that the switching of the power supply destination to the water supply pump 5 has been completed (step SA10). The control unit 403 also notifies the user terminal 6b via the communication line N4 that the switching of the power supply destination to the water supply pump 5 has been completed (step SA11). By carrying out such processing, both the building owner or manager and the users can understand that the water supply is once again available.

[0068] In the above-described embodiment, when the destination of power supply from the electric vehicle 1 is a facility (the water supply pump 5) other than the elevator 3 and a remote call is registered from the user terminal 6b, the control unit 403 of the control system 4 transmits a power supply destination switching command to the charging / discharging device 2 to switch the destination of power supply from the electric vehicle 1. Then, based on the power supply destination switching command, the control unit 205 of the charging / discharging device 2 performs control to switch the destination of power supply from the electric vehicle 1 from the water supply pump 5 to the elevator 3. Therefore, according to this embodiment, the facility to which power is supplied from the electric vehicle 1 can be switched as necessary.

[0069] In addition, in this embodiment, since the battery of the electric vehicle 1 is used as a power source during a power outage, for example, when the remaining battery power level becomes low, it becomes possible to perform control such as first stopping the operation of the facility to which the power is supplied, such as the elevator 3, and then stopping the supply of power. Therefore, unlike an emergency power source, a momentary power cut does not occur when the power source runs out, and it is possible to prevent the elevator 3 from stopping mid-operation.

[0070] Furthermore, when the remaining charge in the battery of electric vehicle 1 becomes low, it is possible to continuously supply power to the facilities in the building by replacing it with another electric vehicle with a sufficient amount of stored power.

[0071] Furthermore, in this embodiment, the control unit 403 of the management system 4 performs control to transmit, to the user terminal 6b, a notification requesting the user to refrain from using the facility or a notification informing the user that the facility will be unavailable, before or after transmitting a power supply destination switching command to the charging / discharging device 2. Therefore, a resident of the building who has the user terminal 6b can know in advance that the facility will be unavailable, and can take action such as refraining from using the water supply.

[0072] Furthermore, in this embodiment, when the power provided to facilities in the building, such as the water supply pump 5, falls below a predetermined threshold, the control unit 205 of the charge / discharge device 2 performs control to switch the destination of the power supply from the electric vehicle 1 from the facilities to the elevator 3. In other words, when the number of residents who have received the notification and refrain from using the water supply increases, the power supply to the water supply pump 5 is stopped, thereby preventing the occurrence of a situation in which the use of the water supply is suddenly disabled when many residents are using the water supply.

[0073] Furthermore, in this embodiment, even if the power provided to equipment such as the water supply pump 5 is not equal to or lower than a predetermined threshold, if the time elapsed since receiving a power supply destination switching command exceeds a predetermined threshold time, the control unit 205 of the charging / discharging device 2 performs control to switch the destination of the power supply from the electric vehicle 1 from the equipment to the elevator 3. Therefore, according to this embodiment, it is possible to prevent the operator of the user terminal 6b who has registered a remote call to the elevator 3 from having to wait a long time for the elevator 3 to start operating.

[0074] Furthermore, in this embodiment, when the control unit 205 of the charging / discharging device 2 receives an elevator suspension signal from the elevator 3, it performs control to switch the destination of the power supply from the electric vehicle 1 from the elevator 3 to equipment such as the water supply pump 5. Therefore, according to this embodiment, the power supply to equipment such as the water supply pump 5 is resumed at the point when the elevator 3 operation based on the remote call ends, so the time during which the equipment is unavailable to the building residents can be kept to a necessary minimum.

[0075] Furthermore, in this embodiment, the control unit 403 of the control system 4 performs control to notify the manager's terminal 6a of the building manager or owner of the advance notice of switching of the power supply destination from the electric vehicle 1 and the completion of the switching. Therefore, according to this embodiment, the building manager or owner who possesses the manager's terminal 6a can properly grasp information on whether the facilities in the building are available or unavailable during a power outage.

[0076] In the above embodiment, an example was given in which no restrictions were placed on the remote calls from the user terminal 6b, but the present invention is not limited to this. In order to prevent unnecessary elevator remote calls from being registered, the call registration floors, destination floors, etc. that can be registered in the remote calls may be limited. For example, the control unit 403 of the control system 4 may only accept remote call registrations from the entrance floor, parking floor, etc. to tenant floors and residential floors, and may transmit a message encouraging the use of stairs (a means of transportation other than the elevator 3) for elevator remote call registrations from tenant floors and residential floors to the entrance floor, parking floor, etc. By performing such processing, unnecessary use of the elevator 3 during a power outage is reduced, thereby preventing frequent occurrence of situations in which water cannot be used.

[0077] Furthermore, if a restricted remote call is registered again after the message is sent, the control unit 403 may accept the remote call. This can prevent a situation in which the elevator 3 operation service is not provided to wheelchair users or physically disabled users.

[0078] In addition, the above-described embodiment describes in detail and specifically the configuration of the device and system in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to having all of the configurations described.

[0079] 1 and 2, the control lines or information lines shown by solid lines are those considered necessary for explanation, and do not necessarily show all the control lines or information lines in the product. In reality, it can be considered that almost all components are connected to each other.

[0080] In addition, in this specification, the processing steps describing chronological processing include not only processing that is performed chronologically in the order described, but also processing that is not necessarily performed chronologically but is performed in parallel or individually (for example, parallel processing or processing by objects).

[0081] Furthermore, each component of the charging / discharging system according to the embodiment of the present invention described above may be implemented in any hardware as long as the respective hardware can transmit and receive information to each other via a network. Furthermore, the processing performed by a certain functional block may be realized by a single piece of hardware, or may be realized by distributed processing by multiple pieces of hardware. [Explanation of symbols]

[0082] 1...electric vehicle, 2...charging / discharging device, 3...elevator, 4...control system, 5...water supply pump, 6a...administrator terminal, 6b...user terminal, 10...charging / discharging system, 201...AC / DC conversion unit, 202...charging unit, 203...charging / discharging switching unit, 204...discharging unit, 205...control unit, 206...power measurement unit, 207...elevator transmitting / receiving unit, 208...power switching unit, 209...supply destination switching unit, 210...external communication unit, 301...power input unit, 302...charging / discharging device communication unit, 303...elevator control unit, 304...external communication unit, 401...elevator communication unit, 402...charging / discharging device communication unit, 403...control unit, 404...administrator terminal communication unit, 405...user terminal communication unit

Claims

1. A power supply system including an elevator installed in a building, a charging / discharging device capable of supplying power stored in a battery of an electric vehicle to facilities in the building including the elevator, and a server that provides a remote call registration service of the elevator to a mobile terminal of a user, The server, a first control unit that transmits a command to switch a destination of the power supply from the electric vehicle when the destination of the power supply from the electric vehicle is a facility other than the elevator and the remote call is registered from the mobile terminal of the user, The charging / discharging device is a second control unit that controls switching a destination of power supply from the electric vehicle from the facility to the elevator based on the command; Power supply system.

2. The first control unit controls to transmit, to a mobile terminal of the user, a notification requesting the user to refrain from using the facility or a notification informing the user that the facility will be unavailable before or after transmitting the command to the charging / discharging device. The power supply system according to claim 1 .

3. The second control unit performs control to switch a destination of power supply from the electric vehicle from the facility to the elevator when the power supplied to the facility becomes equal to or lower than a predetermined threshold. The power supply system according to claim 2 .

4. The second control unit performs control to switch the destination of the power supply from the electric vehicle to the elevator from the facility when the elapsed time from receiving the command exceeds a predetermined threshold time even if the power supplied to the facility is not equal to or less than a predetermined threshold. The power supply system according to claim 3 .

5. When the second control unit detects that the operation of the elevator based on the remote call by the power supply from the electric vehicle has ended, the second control unit performs control to switch the destination of the power supply from the electric vehicle from the elevator to the facility. The power supply system according to claim 4.

6. The first control unit performs control to notify a mobile terminal of a manager or owner of the building of a notice of switching of a power supply destination from the electric vehicle and a completion of the switching. The power supply system according to any one of claims 2 to 5.

7. The first control unit, when a destination of power supply from the electric vehicle is a facility other than the elevator and the remote call is registered from the mobile terminal of the user, controls to transmit a message to the mobile terminal recommending the use of a means of transportation other than the elevator. The power supply system according to any one of claims 2 to 5.

8. A method for switching power supply destination by a power supply system including an elevator installed in a building, a charging / discharging device capable of supplying power stored in a battery of an electric vehicle to facilities in the building including the elevator, and a server that provides a remote call registration service of the elevator to a mobile terminal of a user, a step of transmitting, by a first control unit of the server, a command to switch the destination of the power supply from the electric vehicle when the destination of the power supply from the electric vehicle is a facility other than the elevator and the remote call is registered from the mobile terminal of the user; and a step of controlling a second control unit of the charging / discharging device to switch a destination of power supply from the electric vehicle from the facility to the elevator based on the command. Power supply switching method.

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