Power supply system and power supply destination switching method

Abstract

The invention relates to a power supply system and a power supply destination switching method. The present invention switches a power supply destination device from an electric vehicle as required. A control system (4) of a charge / discharge system (10) according to one embodiment of the present invention is provided with a control unit (403) for transmitting a command for switching a power supply destination from an electric vehicle (1) when the power supply destination from the electric vehicle (1) is a device (water supply pump (5)) other than an elevator (3) and a remote call is registered from a user terminal (6b). The charging and discharging device (2) is provided with a control part (205) which carries out the following control: the power supply destination from the electric vehicle (1) is switched from equipment to the elevator (3) according to a command.

Description

Technical Field

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

[0002] In the past, the following technology is known: when lifelines such as electricity, tap water, and gas are cut off due to disasters such as earthquakes, these devices can be used using the driving power supply from the emergency generator. For example, Patent Document 1 discloses the following technology: when the supply of the lifeline stops, the emergency generator is started, and the on-off valve of the emergency water supply pipe is opened, thereby driving the pump realized by the emergency generator to supply the tap water stored in the water tank from the emergency water supply port to each resident in the building.

[0003] Prior art literature

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 8-333877 Summary of the invention

[0005] Problems to be solved by the invention

[0006] In recent years, in the energy field, the practical application of V2X (Vehicle to X) systems that enable mutual power supply between electric vehicles and homes, buildings, power grids, etc. has been continuously developed. For example, by using a charging and discharging device compatible with V2X, even if a building loses power due to a large-scale disaster, it is possible to supply power from an electric vehicle connected to the charging and discharging device to building equipment such as elevators through the charging and discharging device.

[0007] However, if you want to supply power to multiple devices in a building from one charging and discharging device at the same time, you need to prepare a charging and discharging device with a large battery capacity and multiple power systems. However, the installation cost of such a charging and discharging device also becomes high. In addition, the device also becomes larger, so a wide installation space is required. Therefore, the number of target devices to which power is supplied from the charging and discharging device is mostly one.

[0008] However, in this case, for example, during a power outage, while power is supplied from the electric vehicle to the water supply pump in the building via the charging and discharging device, power is not supplied to the elevator in the building, so users cannot use the elevator.

[0009] The present invention has been made in consideration of the above situation, and can switch the device to which the electric power is supplied from the electric vehicle as needed.

[0010] Means for solving problems

[0011] A power supply system according to one aspect of the present invention comprises: an elevator installed in a building; a charging and discharging device capable of supplying power stored in a battery of an electric vehicle to equipment in the building including the elevator; and a server providing a remote call registration service for the elevator to a user's portable terminal. The server of the power supply system according to one aspect of the present invention comprises: a first control unit that sends an instruction for switching the power supply destination from the electric vehicle when the power supply destination from the electric vehicle is a device other than the elevator and a remote call is registered from the user's portable terminal. The charging and discharging device comprises: a second control unit that performs control such that, according to the instruction, the power supply destination from the electric vehicle is switched from the device to the elevator.

[0012] Effects of the Invention

[0013] According to at least one aspect of the present invention, it is possible to switch the device to which electric power is supplied from the electric vehicle as needed.

[0014] Other problems, structures, and effects than those described above will become clear from the following description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a block diagram showing a configuration example of a control system of a charge and discharge system according to an embodiment of the present invention.

[0016] Figure 2 This is a block diagram showing a hardware configuration example of each device constituting the charge and discharge system according to one embodiment of the present invention.

[0017] Figure 3 This is a flowchart showing an example of a procedure of a power supply destination switching process of the charge and discharge system according to one embodiment of the present invention.

[0018] Figure 4 This is a flowchart showing an example of a procedure of a power supply destination switching process of the charge and discharge system according to one embodiment of the present invention. DETAILED DESCRIPTION

[0019] Hereinafter, an example of a method for implementing the present invention (hereinafter referred to as an "implementation method") will be described with reference to the accompanying drawings. The present invention is not limited to the implementation methods, and various numerical values ​​and the like in the implementation methods are examples. In addition, in this specification and the accompanying drawings, the same symbols are marked for the same components or components having substantially the same functions, and repeated descriptions are omitted.

[0020] <Charge and discharge system schematic structure>

[0021] First, refer to Figure 1 The configuration of a charge and discharge system 10 according to an embodiment of the present invention will be described. Figure 1 1 is a block diagram showing a configuration example of a control system of the charging and discharging system 10 .

[0022] like Figure 1 As shown, the charging and discharging system 10 (an example of a power supply system) includes: an electric car 1, a charging and discharging device 2, an elevator 3 installed in a building (structure) not shown in the figure, a control system 4 for the elevator 3, a water supply pump 5 in the building, a terminal 6a for an administrator, and a terminal 6b for a user.

[0023] The charging and discharging device 2 and the control system 4 are connected to each other via a network N1 so as to be communicable, and the elevator 3 and the control system 4 are connected to each other via a network N2 so as to be communicable. The networks N1 and N2 are composed of dedicated lines or the like. The control system 4 and the administrator terminal 6a are connected to each other via a communication line N3 so as to be communicable, and the control system 4 and the user terminal 6b are connected to each other via a communication line N4 so as to be communicable. The communication lines N3 and N4 are composed of public lines such as the Internet, mobile communication networks, or the like.

[0024] The electric vehicle 1 has a battery (not shown), receives power from the charging and discharging device 2, and supplies the power stored in the battery to the charging and discharging device 2. In addition, the electric vehicle 1 can be always set up in the parking lot of the building, etc., and the electric vehicles of the apartment management company, hospital, elevator maintenance service company, etc. can be moved to the site of the building when a disaster occurs. In addition, when the battery remaining power of the electric vehicle 1 connected to the charging and discharging device 2 is insufficient, other electric vehicles can be moved from the above facilities and put on standby.

[0025] The charging and discharging device 2 is a device that can charge the electric vehicle 1 and supply the power discharged from the battery of the electric vehicle 1 to the equipment in the building such as the water supply pump 5, and is also called a hybrid PCS (Power Conditioning System). The charging and discharging device 2 stores the power generated by the solar power generation equipment (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 equipment in the building.

[0026] The elevator 3 is moved up and down in an elevator shaft (not shown) provided in the building, and transports users of the elevator 3, such as residents of the building, to a desired destination floor. The elevator 3 is normally driven by power supplied from a commercial power source or a solar power generation device, and is driven by power supplied from a battery of the electric vehicle 1 via the charging and discharging device 2 during a power outage.

[0027] The control system 4 (an example of a server) monitors the operating status of the elevator 3 and the operating status of various equipment such as air conditioners in the building. In addition, the control system 4 provides a service for displaying the operating status information of the building equipment to the manager terminal 6a held by the manager or owner of the building. In addition, the control system 4 also provides a service for registering a call to the elevator 3 based on the information of the remote call of the elevator 3 sent from the user terminal 6b held by the user of the elevator 3 (hereinafter also referred to as "call registration service").

[0028] In the present embodiment, the control system 4 performs control to switch the supply destination of the electric power supplied from the electric vehicle 1 during a power outage according to the situation. The switching control of the control system 4 is performed by sending a power supply destination switching command to the charging and discharging device 2 .

[0029] Furthermore, when switching the power supply destination, the control system 4 sends various notifications to the manager terminal 6a or the user terminal 6b.

[0030] The water supply pump 5 is a device that supplies water stored in a water receiving tank (not shown) to each faucet installed in the tenants in the building or the residence. The water supply pump 5 is normally driven by power supplied from a commercial power source, and is driven by power supplied from the battery of the electric vehicle 1 via the charging and discharging device 2 during a power outage.

[0031] In addition, in this embodiment, the target equipment other than the elevator 3 that receives power from the charging and discharging device 2 during a power outage is an example of a water supply pump 5, but the present invention is not limited to this. The equipment that receives power from the charging and discharging device 2 during a power outage can be any equipment that requires power supply, for example, other equipment such as lighting equipment.

[0032] The administrator terminal 6a is a portable terminal held and operated by the administrator or owner of the building. The display unit (not shown) of the administrator terminal 6a displays the operating status information of the building equipment transmitted from the control system 4 according to the operation of the operator. In addition, the display unit (not shown) of the administrator terminal 6a displays the contents of various notifications transmitted from the control system 4.

[0033] The user terminal 6b is a mobile terminal held and operated by a building resident who uses the elevator 3. When an operation of registering a call of the elevator 3 is input by the operator, the user terminal 6b transmits a request for call registration (hereinafter also referred to as "remote call") to the control system 4. In addition, the contents of various notifications transmitted from the control system 4 are displayed on a display unit (not shown) of the manager terminal 6a.

[0034] [Charging and discharging device]

[0035] like Figure 1As shown, the charge and discharge device 2 includes: an AC / DC conversion unit 201, a charging unit 202, a charge and discharge switching unit 203, a discharge 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.

[0036] The AC / DC converter 201 converts the AC power supplied from the commercial power source into DC power and supplies it to the charging unit 202. The AC power supplied from the commercial power source includes AC power obtained by converting DC power obtained from a solar power generation device (not shown). In addition, the AC / DC converter 201 converts the DC power supplied from the electric vehicle 1 into AC power and outputs it to the power switching unit 208.

[0037] Charging unit 202 outputs the DC power supplied from AC / DC conversion unit 201 to charging and discharging switching unit 203 .

[0038] The charge-discharge switching unit 203 supplies the DC power supplied from the charging unit 202 to the electric vehicle 1. In addition, 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 discharge to the discharge unit 204.

[0039] The discharge unit 204 outputs the DC current supplied from the charge and discharge switching unit 203 to the AC / DC conversion unit 201 .

[0040] The control unit 205 (an example of the second control unit) controls the operation of each unit constituting the charging and discharging device 2. For example, the control unit 205 controls the supply destination switching unit 209 to switch the supply destination of power from the water supply pump 5 to the elevator 3 according to the power supply destination switching instruction sent from the control system 4. The power consumption information of the water supply pump 5 is measured by the power measuring unit 206.

[0041] When the destination of power supply from the charging and discharging device 2 is the water supply pump 5 , the power measuring unit 206 measures the power consumption of the water supply pump 5 .

[0042] The elevator transceiver 207 transmits and receives various signals or data with the elevator 3 .

[0043] The power switching unit 208 switches the power source serving as the power source of the building equipment between the commercial power source and the battery of the electric vehicle 1 under the control of the control unit 205 , and outputs the power supplied from the switching side power source to the supply destination switching unit 209 .

[0044] The supply destination switching unit 209 switches the device of the power supply destination input from the power switching unit 208 between the water supply pump 5 and the elevator 3 under the control of the control unit 205. In addition, when power is supplied from the commercial power supply without a power outage, the supply destination switching unit 209 supplies power to all devices in the building that need power supply without switching the power supply destination.

[0045] The external communication unit 210 controls transmission and reception operations of various signals and data with the control system 4 via the network N1.

[0046] [elevator]

[0047] like Figure 1 As shown, the elevator 3 includes: a power input unit 301, a charging and discharging device communication unit 302, an elevator control unit 303, and an external communication unit 304.

[0048] The power input unit 301 receives input of electric power output from the supply destination switching unit 209 of the charging and discharging device 2 .

[0049] The charging and discharging device communication unit 302 controls the transmission and reception operations of various signals and data with the charging and discharging device 2 .

[0050] 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) before the floor where a call is registered and the destination floor.

[0051] The external communication unit 304 controls the transmission and reception of various signals and data with the control system 4 via the network N2.

[0052] [Control System]

[0053] like Figure 1 As shown, the control system 4 includes an elevator communication unit 401 , a charging and discharging device communication unit 402 , a control unit 403 , a manager terminal communication unit 404 , and a user terminal communication unit 405 .

[0054] The elevator communication unit 401 controls transmission and reception operations of various signals and data with the elevator 3 via the network N2.

[0055] The charging and discharging device communication unit 402 controls transmission and reception operations of various signals and data with the charging and discharging device 2 via the network N1.

[0056] The control unit 403 (an example of the first control unit) performs the following control: monitoring the operating status of the elevator 3 and the operating status of various devices in the building, and remotely operating them as needed. In addition, the control unit 403 controls the display operation on the display unit (not shown) of the administrator terminal 6a or the user terminal 6a related to the display service of the operating status information or the provision of the call registration service.

[0057] In addition, the control unit 403 performs the following control: when a remote call is received from the user terminal 6b and the operation of the elevator 3 is stopped due to a power outage, etc., a power supply destination switching instruction is sent to the charging and discharging device 2. Here, the power supply destination switching instruction sent to the charging and discharging device 2 is an instruction to switch the power supply destination from the water supply pump 5 to the elevator 3.

[0058] Furthermore, the control unit 403 performs control to transmit a power supply destination switching instruction for switching the power supply destination from the elevator 3 to the water supply pump 5 to the charging and discharging device 2 when it is detected that the service of the elevator 3 by the remote call is completed.

[0059] Furthermore, the control unit 403 also performs control to transmit various notifications to the manager terminal 6 a or the user terminal 6 b before and after switching of the power supply destination is performed.

[0060] The administrator terminal communication unit 404 controls transmission and reception operations of various signals and data with the administrator terminal 6 a via the communication line N3 .

[0061] The user terminal communication unit 405 controls transmission and reception operations of various signals and data with the user terminal 6 b via the communication line N4 .

[0062] <Computer hardware configuration example>

[0063] Next, refer to Figure 2 Composition Figure 1 The configuration (hardware configuration) of the control system of each device of the charging and discharging system 10 shown will be described.

[0064] Figure 2 It is a block diagram showing a hardware configuration example of each device constituting the charging and discharging system 10 . Figure 2 The computer 20 shown is an example of hardware used as a computer capable of operating the charge and discharge device 2 and the control system 4 of the charge and discharge system 10 of this embodiment. These devices constituting the charge and discharge system 10 of this embodiment execute a program through the computer 20 (computer). Figure 1 The functional blocks shown cooperate with each other to realize the processing of the power supply destination switching method of the present invention.

[0065] The computer 20 includes a control unit 21 , a nonvolatile storage device 22 , a display unit 23 , an operation input unit 24 , and a communication I / F (Interface) 25 , each of which is connected to the bus B.

[0066] The control unit 21 includes a CPU (Central Processing Unit) 211 , a ROM (Read Only Memory) 212 , and a RAM (Random Access Memory) 213 .

[0067] CPU 211 reads software program codes for realizing various functions of the present embodiment from ROM 212, expands and executes the codes in RAM 213. In addition, computer 20 may include a processing device such as MPU (Micro-Processing Unit) instead of CPU 211, or CPU 211 and MPU may be used together in computer 20.

[0068] Variables, parameters, and the like generated during the calculation process of the CPU 211 are temporarily written into the RAM 213 .

[0069] As the nonvolatile storage device 22, for example, a HDD (Hard Disk Drive), an SSD (Solid State Drive), an NVRAM (Non-Volatile Random Access Memory), a floppy disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a nonvolatile memory card, etc. can be used. In addition to the OS (Operating System) and various parameters, the nonvolatile storage device 22 also stores programs for making the computer 20 function. In addition, the program can also be stored in the ROM 212.

[0070] 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. That is, the ROM 212 or the nonvolatile storage device 22 is used as an example of a computer-readable non-transitory recording medium storing a program executed by a computer.

[0071] The display unit 23 is a monitor composed of, for example, an LCD (Liquid Crystal Display) and displays the results of processing performed by the computer 20 and the like.

[0072] The operation input unit 24 is composed of, for example, a keyboard, a mouse, a touch sensor, etc., generates an operation signal corresponding to a user operation, and supplies it to the CPU 211. Alternatively, the display unit 23 and the operation input unit 24 may be integrally configured as a touch panel.

[0073] The communication I / F 25 is constituted by a communication device that controls communication with other devices, and the like.

[0074] <Power supply destination switching process>

[0075] Next, refer to Figure 3 and Figure 4 The power supply destination switching process of the charge and discharge system 10 according to the present embodiment will be described. Figure 3 and Figure 4 1 is a flowchart showing an example of a procedure of a power supply destination switching process of the charging and discharging system 10 .

[0076] In addition, when the building is in a power outage state and the power supply destination from the charging and discharging device 2 is the water supply pump 5, the Figure 3 First, the control unit 403 of the control system 4 (see Figure 1 ) determines whether a remote call of the elevator 3 is received from the user terminal 6b (step SA1). If it is determined in step SA1 that no remote call is received (if the determination in step SA1 is No), the control unit 403 repeats the determination in step SA1.

[0077] On the other hand, when it is determined in step SA1 that a remote call has been received (when step SA1 is determined to be yes), the control unit 403 sends a power supply destination switching instruction to the charging and discharging device 2 via the charging and discharging device communication unit 402 to instruct the power supply destination to be switched from the water supply pump 5 to the elevator 3 (step SA2).

[0078] Next, the control unit 403 of the control system 4 notifies the manager terminal 6a of the presence of the user of the elevator 3 via the manager terminal communication unit 404 (step SA3). Next, the control unit 403 notifies the user terminal 6b of the request to restrict the use of tap water via the user terminal communication unit 405 (step SA4). For example, the control unit 403 sends a message such as "Please restrict the use of tap water in order to switch the power supply destination of the emergency power supply from the water supply pump to the elevator" to the user terminal 6b. By performing such processing, the building occupants can grasp the situation that tap water cannot be used in advance, and can take actions such as restricting the use of tap water.

[0079] Furthermore, when the destination device of the power supplied from the electric vehicle 1 is a lighting device in a building, the control unit 403 can notify the administrator terminal 6a and the user terminal 6b of a notice that the lighting device cannot be used, etc. That is, the control unit 403 notifies the adverse situation caused by not supplying power before switching the power supply destination.

[0080] Next, the control unit 403 transmits information indicating completion of notification to the administrator terminal 6a and the user terminal 6b to the charge and discharge device 2 via the charge and discharge device communication unit 402 (step SA5).

[0081] The external communication unit 210 of the charging and discharging device 2 receives the power supply destination switching instruction transmitted from the control system 4 in step SA2 (step SB1). Next, the control unit 205 of the charging and discharging device 2 reads the power supplied to the water supply pump 5 measured by the power measuring unit 206 (step SB2). Next, the control unit 205 determines whether the power supplied to the water supply pump 5 is below a predetermined threshold value (step SB3). In step SA4, the notification of the request for restricting the use of tap water transmitted from the user terminal 6b is seen. If many users stop using tap water, it is considered that the power supplied to the water supply pump 5 is below the predetermined threshold value.

[0082] If it is determined in step SB3 that the power supplied to the water supply pump 5 is not less than the predetermined threshold value (if the determination in step SB3 is No), the control unit 205 determines whether a predetermined threshold time has passed since the power supply destination switching instruction 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 thereto, and the threshold time can also be set to a time other than this. If it is determined in step SB4 that the threshold time has not passed (if the determination in step SB4 is No), the control unit 205 returns to step SB2 for processing.

[0083] On the other hand, when it is determined in step SB4 that the threshold time has passed (when the determination in step SB4 is yes), the control unit 205 instructs the supply destination switching unit 209 to switch the power supply destination from the water supply pump 5 to the elevator 3 (step SB5). According to the instruction of step SB5, the power supply destination is switched from the water supply pump 5 to the elevator 3 by the supply destination switching unit 209, thereby starting to supply power to the elevator 3.

[0084] Then, the elevator 3 supplied with electric power from the charging and discharging device 2 starts up (step SC1).

[0085] Next, the control unit 205 of the charging and discharging device 2 transmits information ( ) that the power supply destination switching is completed to the control system 4 via the external communication unit 210. Figure 4 Then, the charge / discharge device communication unit 402 of the control system 4 receives the information on the completion of the switching of the power supply destination transmitted from the charge / discharge device 2 in step SB6 (step SA6).

[0086] Next, the control unit 403 of the control system 4 notifies the administrator terminal 6a via the communication line N3 that the switching to the elevator 3 of the power supply destination is completed (step SA7). In addition, the control unit 403 notifies the user terminal 6b via the communication line N4 that the tap water cannot be used temporarily (step SA8). By making such a notification, the building occupant holding the user terminal 6b can understand the situation that the tap water cannot be used.

[0087] In addition, through Figure 3 In step SB5, the power supply destination of the power source is switched to the elevator 3, and the elevator 3 starts (step SC1). Next, the elevator control unit 303 of the elevator 3 implements the elevator operation service (step SC2). The elevator operation service is a service that moves the car (not shown) to the registered floor of the call in response to a remote call from the user terminal 6b, and after the user gets on the car, the user is transported to the destination floor.

[0088] Next, the elevator control unit 303 determines whether the service is completed (step SC3). That is, the elevator control unit 303 determines whether the car has reached the destination floor and the passenger has gotten off the elevator. If it is determined in step SC3 that the service is not completed (if step SC3 is determined to be no), the elevator control unit 303 returns to step SC2 for processing. That is, the service continues to be provided.

[0089] On the other hand, when it is determined in step SC3 that the service is completed (when it is determined to be yes in step SC3), the elevator control unit 303 stops the elevator 3 and sends an elevator stop signal to the charging and discharging device 2 via the charging and discharging device communication unit 302 (step SC4). Then, the elevator transceiver 207 of the charging and discharging device 2 receives the elevator stop signal sent from the elevator 3 in step SC4 (step SB7).

[0090] Next, the control unit 205 of the charging and 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). According to the instruction, the supply destination switching unit 209 switches, thereby restarting the supply of power to the water supply pump 5. Next, the control unit 205 transmits information on the completion of the power supply destination switching to the control system 4 via the external communication unit 210 (step SB9). Then, the charging and discharging device communication unit 402 of the control system 4 receives the information on the completion of the power supply destination switching transmitted from the charging and discharging device 2 in step SB9 (step SA9).

[0091] Next, the control unit 403 of the control system 4 notifies the administrator terminal 6a via the communication line N3 that the switching of the water supply pump 5 to the power supply destination is completed (step SA10). In addition, the control unit 403 notifies the user terminal 6b via the communication line N4 that the switching of the water supply pump 5 to the power supply destination is completed (step SA11). By performing such processing, both the owner or manager of the building and the user can understand the situation in which tap water can be reused.

[0092] In the above-described embodiment, when the destination of power supply from the electric vehicle 1 is a device (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 instruction for switching the destination of power supply from the electric vehicle 1 to the charging and discharging device 2. And, the control unit 205 of the charging and discharging device 2 performs control such that the destination of power supply from the electric vehicle 1 is switched from the water supply pump 5 to the elevator 3 according to the power supply destination switching instruction. Therefore, according to the present embodiment, the device of the destination of power supply from the electric vehicle 1 is switched as needed.

[0093] In addition, in the present embodiment, the battery of the electric vehicle 1 is used as a power source during a power outage. Therefore, for example, the following control can be performed: when the battery remaining power is reduced, the operation of the power supply destination device, such as the elevator 3, is first stopped, and then the power supply is stopped. Therefore, unlike the emergency power supply, there is no instantaneous interruption at the time when the power is exhausted, so the elevator 3 can be prevented from stopping during operation.

[0094] Furthermore, when the remaining battery level of the electric vehicle 1 is reduced, the electric vehicle 1 can be replaced with another electric vehicle with a sufficient amount of power, thereby continuing to supply power to the equipment in the building.

[0095] In addition, in the present embodiment, the control unit 403 of the control system 4 performs control such that a notification for requesting restriction of use of equipment or a notification for notifying that equipment cannot be used is sent to the user terminal 6b before or after sending a power supply destination switching instruction to the charging and discharging device 2. Therefore, the building occupant who holds the user terminal 6b can know in advance that equipment cannot be used, and can take actions such as restricting the use of tap water.

[0096] In addition, in the present embodiment, the control unit 205 of the charging and discharging device 2 performs control such that, when the power supplied to the in-building equipment such as the water supply pump 5 is below a predetermined threshold, the power supply destination from the electric vehicle 1 is switched from the equipment to the elevator 3. That is, when the number of residents who are notified to restrict the use of tap water increases, the power supply to the water supply pump 5 is stopped, thereby preventing a situation where tap water cannot be used suddenly when many residents are using tap water.

[0097] In addition, in the present embodiment, the control unit 205 of the charging and discharging device 2 performs control such that, even if the power supplied to the equipment such as the water supply pump 5 is not less than the predetermined threshold value and the elapsed time from the reception of the power supply destination switching instruction exceeds the predetermined threshold time, the power supply destination from the electric vehicle 1 is switched from the equipment to the elevator 3. Therefore, according to the present embodiment, it is possible to prevent the operator of the user terminal 6b who has registered a remote call for the elevator 3 from having to wait for the operation of the elevator 3 for a long time.

[0098] In addition, in the present embodiment, the control unit 205 of the charging and discharging device 2 performs control such that, when receiving an elevator stop signal from the elevator 3, the destination of power supply from the electric vehicle 1 is switched from the elevator 3 to the water supply pump 5 and other equipment. Therefore, according to the present embodiment, at the time point when the operation of the elevator 3 based on the remote call ends, the power supply to the water supply pump 5 and other equipment is restarted, so that the time when the building occupants cannot use the equipment can be limited to the necessary minimum time.

[0099] Furthermore, in the present embodiment, the control unit 403 of the control system 4 performs control such that the manager terminal 6a of the building manager or owner is notified of the notice of switching the power supply destination from the electric vehicle 1 and the completion of the switching. Therefore, according to the present embodiment, the manager or owner of the building who holds the manager terminal 6a can appropriately grasp the information on whether the equipment in the building can be used or not used during the power outage.

[0100] In addition, in the above-mentioned embodiment, an example is given in which no restriction is set for the remote call from the user terminal 6b, but the present invention is not limited to this. In order to prevent the registration of unnecessary elevator remote calls, the call registration floors, destination floors, etc. that can be registered in the remote calls can also be limited. For example, the control unit 403 of the control system 4 can only accept remote call registrations from the entrance floor, parking floor, etc. to the tenant floor, living room floor, and can send a message to remind the use of stairs (a means of movement other than the elevator 3) for elevator remote call registrations from the tenant floor, living room floor to the entrance floor, parking floor, etc. By performing such processing, unnecessary use of the elevator 3 during power outages can be reduced, and frequent situations where tap water cannot be used can be prevented.

[0101] In addition, after the message is sent, if the restricted remote call is registered again, the control unit 403 may accept the remote call. This can prevent the situation where the operation service of the elevator 3 is not provided to wheelchair users or physically disabled users.

[0102] In addition, the above-mentioned embodiment is an embodiment in which the structure of a device and a system is described in detail and specifically in order to explain the present invention easily, and it is not limited to necessarily having all the described structures.

[0103] In addition, Figure 1 as well as Figure 2 The control lines or information lines shown by the solid lines are those that are considered necessary for explanation, and may not represent all the control lines or information lines in the product. In fact, it can be considered that almost all the structures are connected to each other.

[0104] In addition, in this specification, the processing steps that describe processing in a time series naturally include processing performed in a time series in the order described, processing that is not necessarily performed in a time series, and processing performed in parallel or individually (for example, parallel processing or target processing).

[0105] Furthermore, the components of the charging and discharging system of one embodiment of the present invention described above can be installed in any hardware as long as the hardware can send and receive information to each other via a network. In addition, the processing implemented by a certain functional module can be implemented by a single hardware or by distributed processing of multiple hardware.

[0106] Explanation of symbols

[0107] 1 ... electric vehicle, 2 ... charging and discharging device, 3 ... elevator, 4 ... control system, 5 ... water supply pump, 6a ... terminal for administrator, 6b ... terminal for user, 10 ... charging and discharging system, 201 ... AC / DC conversion unit, 202 ... charging unit, 203 ... charging and discharging switching unit, 204 ... discharging unit, 205 ... control unit, 206 ... power measurement unit, 207 ... elevator transceiver unit, 208 ... power switching unit, 209 ... supply destination switching unit, 210 ... external communication unit, 301 ... power input unit, 302 ... charging and discharging device communication unit, 303 ... elevator control unit, 304 ... external communication unit, 401 ... elevator communication unit, 402 ... charging and discharging device communication unit, 403 ... control unit, 404 ... terminal communication unit for administrator, 405 ... terminal communication unit for user.

Claims

1. A power supply system comprising: an elevator installed in a building; a charging and discharging device capable of supplying power stored in a battery of an electric vehicle to equipment in the building including the elevator; and a server providing a remote call registration service of the elevator to a user's portable terminal, characterized in that: The server includes a first control unit that transmits a command for switching the destination of power supply from the electric vehicle when the destination of power supply from the electric vehicle is a device other than the elevator and the remote call is registered from the portable terminal of the user, The charging and discharging device includes a second control unit configured to perform control such that, in accordance with the command, a destination of power supply from the electric vehicle is switched from the device to the elevator.

2. The power supply system according to claim 1, characterized in that: The first control unit performs control to transmit a notification requesting restriction of use of the device or a notification notifying that the device cannot be used to the portable terminal of the user before or after the instruction is transmitted to the charge / discharge device.

3. The power supply system according to claim 2, characterized in that: The second control unit performs control to switch the destination of power supply from the electric vehicle from the device to the elevator when the power supplied to the device is equal to or less than a predetermined threshold value.

4. The power supply system according to claim 3, characterized in that: The second control unit performs control such that, even if the power supplied to the device is not less than a predetermined threshold and the elapsed time from the receipt of the command exceeds a predetermined threshold time, the power supply destination from the electric car is switched from the device to the elevator.

5. The power supply system according to claim 4, characterized in that: The second control unit performs control to switch the destination of power supply from the electric vehicle from the elevator to the device when it is detected that the operation of the elevator based on the remote call by power supply from the electric vehicle has ended.

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

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

8. A method for switching a power supply destination executed by a power supply system, the power supply system comprising: an elevator installed in a building; a charging and discharging device capable of supplying power stored in a battery of an electric vehicle to equipment in the building including the elevator; and a server providing a remote call registration service of the elevator to a user's portable terminal, characterized in that: The power supply destination switching method includes the following steps: A process in which, when the destination of power supply from the electric vehicle is a device other than the elevator and the remote call is registered from the portable terminal of the user, the first control unit of the server transmits an instruction for switching the destination of power supply from the electric vehicle; and The second control unit of the charging and discharging device performs a control process in which, in accordance with the command, a destination of power supply from the electric vehicle is switched from the device to the elevator.

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