Power supply system and method for switching power supply destinations

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 Art】 【0002】 Conventionally, in the event of a disaster such as an earthquake, when lifelines such as electricity, water, and gas are cut off, there is a known technology that enables the use of these facilities using a driving power source from an emergency generator. For example, Patent Document 1 discloses a technology in which when the supply of a lifeline stops, an emergency generator is started and a water supply valve of an emergency water supply pipe is opened, so that tap water stored in a water storage tank is pumped by the emergency generator and supplied from an emergency water supply port to each household in a building. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 8-333877 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 In recent years, in the energy field, the practical application of a V2X (Vehicle to X) system that enables mutual power supply between an electric vehicle and a house, a building, a power grid, etc. by connecting them has been promoted. For example, by using a V2X-compatible charge / discharge device, even when a building loses power due to a wide-area disaster or the like, power can be supplied from an electric vehicle connected to the charge / discharge device to building facilities such as an elevator via the charge / discharge device. 【0005】 By the way, if you want to supply power to multiple pieces of equipment in a building simultaneously from a single charge / discharge device, you need to prepare a charge / discharge device with a large battery capacity and multiple power systems. However, such charge / discharge devices are expensive to install. Also, because the devices are large, they require a vast installation space. Therefore, the number of pieces of equipment to which power is supplied from a charge / discharge device is often limited to one. 【0006】 However, in this case, for example, while power is being supplied from an electric vehicle to the building's water pumps via a charging / discharging device during a power outage, power is not being supplied to the building's elevators, making it impossible for users to use them. 【0007】 This invention was made in consideration of the above circumstances, and aims to enable switching the equipment to which electricity is supplied from an electric vehicle as needed. [Means for solving the problem] 【0008】 A power supply system according to one aspect of the present invention is a power supply system comprising an elevator installed in a building, a charge / discharge device capable of supplying power stored in the battery of an electric vehicle to the building's equipment, including the elevator, and a server that provides a remote call registration service for the elevator to the user's mobile terminal. The server of the power supply system according to one aspect of the present invention includes a first control unit that transmits a command to switch the power supply destination from the electric vehicle when the power supply destination from the electric vehicle is equipment other than the elevator and a remote call is registered from the user's mobile terminal. Based on the command, the charge / discharge device switches the power supply destination from the electric vehicle, Other than elevators It includes a second control unit that performs control to switch from equipment to elevator. [Effects of the Invention] 【0009】 According to at least one aspect of the present invention, the equipment to which electricity is supplied from an electric vehicle can be switched as needed. Other issues, configurations, and effects not mentioned above will be clarified by the following description of the embodiments. [Brief explanation of the drawing] 【0010】 [Figure 1] This is a block diagram showing an example configuration of the control system for a charge / discharge system according to one embodiment of the present invention. [Figure 2] This is a block diagram showing an example of the hardware configuration of each device constituting a charge / discharge system according to one embodiment of the present invention. [Figure 3] This flowchart shows an example of the procedure for switching the power supply destination by a charge / discharge system according to one embodiment of the present invention. [Figure 4] This flowchart shows an example of the procedure for switching the power supply destination by a charge / discharge system according to one embodiment of the present invention. [Modes for carrying out the invention] 【0011】 Hereinafter, examples of embodiments 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 these embodiments, and various numerical values ​​and the like in the embodiments are illustrative. Furthermore, in this specification and drawings, the same reference numerals will be used for identical components or components having substantially the same function, and redundant explanations will be omitted. 【0012】 <Outline configuration of the charging / discharging system> First, with reference to Figure 1, the configuration of the charge / discharge system 10 according to one embodiment of the present invention will be described. Figure 1 is a block diagram showing an example of the configuration of the control system of the charge / discharge system 10. 【0013】 As shown in Figure 1, the charging and discharging system 10 (an example of a power supply system) includes an electric vehicle 1, a charging and discharging device 2, an elevator 3 installed 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 charging / discharging device 2 and the control system 4 are connected via network N1, and the elevator 3 and the control system 4 are connected via network N2. Networks N1 and N2 consist of dedicated lines, etc. The control system 4 and the administrator terminal 6a are connected via communication line N3, and the control system 4 and the user terminal 6b are connected via communication line N4. Communication lines N3 and N4 consist of public lines such as the Internet or mobile communication networks, etc. 【0015】 Electric vehicle 1 has a battery (not shown) and receives power from the charging / discharging device 2, and also supplies the power stored in the battery to the charging / discharging device 2. Electric vehicle 1 may be permanently installed in a building's parking lot or the like, and in the event of a disaster, electric vehicles belonging to condominium management companies, hospitals, elevator maintenance service companies, etc., may be moved to the building's premises. Furthermore, if the battery charge of electric vehicle 1 connected to the charging / discharging device 2 is insufficient, another electric vehicle may be moved from the above facility and kept on standby. 【0016】 The charging / discharging device 2 is a device that enables charging of the electric vehicle 1 and supplying electricity discharged from the battery of the electric vehicle 1 to building facilities such as the water supply pump 5, and is also called a hybrid PCS (Power Conditioning System). The charging / discharging device 2 stores electricity generated by the solar power generation equipment (not shown) installed in the building into the battery of the electric vehicle 1, and also supplies the electricity stored in the battery of the electric vehicle 1 to the building facilities. 【0017】 Elevator 3 moves up and down within an unillustrated hoistway located within the building, transporting its users, such as building residents, to their desired destination floor. Under normal circumstances, elevator 3 is powered by electricity supplied from commercial power or solar power generation equipment, and in the event of a power outage, it is powered by electricity supplied from the battery of electric vehicle 1 via charge / discharge device 2. 【0018】 The control system 4 (an example of a server) monitors the operating state of the elevator 3 and the operating status of various facilities such as the air conditioning equipment in the building. Further, the control system 4 provides a service for displaying the operating status information of the building facilities to the administrator terminal 6a owned by the building administrator, owner, etc. Further, the control system 4 also provides a service (hereinafter, also referred to as "call registration service") for registering a call to the elevator 3 based on the information of the remote call of the elevator 3 transmitted from the user terminal 6b owned by the user of the elevator 3. 【0019】 Also, in the present embodiment, the control system 4 performs control to switch the power supply destination from the electric vehicle 1 during a power outage according to the situation. The switching control by the control system 4 is performed by transmitting a power supply destination switching command to the charge / discharge device 2. 【0020】 Furthermore, when implementing the switching of the power supply destination, the control system 4 transmits various notifications to the administrator terminal 6a or the user terminal 6b. 【0021】 The water supply pump 5 is a device that supplies the water stored in a water receiving tank (not shown) to each faucet provided in the tenant or residence in the building. The water supply pump 5 is normally driven by the power supplied from the commercial power supply, and is driven by the power supplied from the battery of the electric vehicle 1 via the charge / discharge device 2 during a power outage. 【0022】 In the present embodiment, an example is given in which the facility other than the elevator 3 that receives power supply from the charge / discharge device 2 during a power outage is the water supply pump 5, but the present invention is not limited to this. The facility that receives power supply from the charge / discharge device 2 during a power outage may be other facilities such as lighting facilities as long as it is a facility that requires power supply. 【0023】 The administrator terminal 6a is a portable terminal possessed and operated by the building manager or owner. The display unit (not shown) of the administrator terminal 6a displays information on the operating status of the building's equipment transmitted from the control system 4 in response to operations performed by the operator. The display unit (not shown) of the administrator terminal 6a also displays the content of various notifications transmitted from the control system 4. 【0024】 The user terminal 6b is a portable terminal owned and operated by residents of the building who use elevator 3. When the operator inputs an operation to register a call for elevator 3, the user terminal 6b transmits a call registration request (hereinafter also referred to as "remote call") to the control system 4. In addition, the display unit (not shown) of the administrator terminal 6a displays the contents of various notifications transmitted from the control system 4. 【0025】 [Charge / discharge device] As shown in Figure 1, the charge / discharge device 2 includes an AC / DC conversion unit 201, a charging unit 202, a charge / discharge switching unit 203, a discharge unit 204, a control unit 205, a power measurement unit 206, an elevator transmitting / receiving 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 the 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 converted from 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 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 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 the discharge to the discharge 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 part that constitutes the charge / discharge device 2. For example, based on a power supply destination switching command transmitted from the control system 4, the control unit 205 controls the power 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 measurement unit 206 measures the amount of power consumed by the water supply pump 5 when the power supplied by the charge / discharge device 2 is to the water supply pump 5. 【0029】 The elevator transceiver unit 207 transmits and receives various signals or data to and from the elevator 3. Based on control by the control unit 205, the power switching unit 208 switches the power source for the building equipment between the commercial power supply and the battery of the electric vehicle 1, and outputs the power supplied from the switched power source to the power destination switching unit 209. 【0030】 The power supply switching unit 209 switches the equipment to which power is supplied from the power switching unit 208 between the water supply pump 5 and the elevator 3, based on control by the control unit 205. However, when there is no power outage and power is being supplied from the commercial power source, the power supply switching unit 209 does not switch the power supply destination and supplies power to all equipment in the building that requires power. 【0031】 The external communication unit 210 controls the transmission and reception of various signals or data between it and the control system 4 via the network N1. 【0032】 [Elevator] As shown in Figure 1, 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 power input from the power supply 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 it and the charge / discharge device 2. The elevator control unit 303 controls the operation of each device or equipment that makes up the elevator 3, including the movement of the elevator car (not shown) to the registered floor or destination floor. The external communication unit 304 controls the transmission and reception of various signals or data between it and the control system 4 via the network N2. 【0034】 [Air traffic control system] As shown in Figure 1, the control system 4 includes an elevator communication unit 401, a charge / discharge device communication unit 402, a control unit 403, an administrator 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 it 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 it and the charge / discharge device 2 via the network N1. 【0036】 The control unit 403 (an example of the first control unit) monitors the operating status of elevator 3 and the operating status of various facilities within the building, and controls them remotely as needed. The control unit 403 also controls the display operation on the display unit (not shown) of the administrator terminal 6a or user terminal 6a regarding the provision of an operating status information display service or a call registration service. 【0037】 Furthermore, when the control unit 403 receives a remote call transmitted from the user terminal 6b and the elevator 3 has stopped operating due to a power outage or the like, it performs control to transmit a power supply destination switching command to the charge / discharge device 2. The power supply destination switching command transmitted to the charge / discharge device 2 here is a command to switch the power supply destination from the water supply pump 5 to the elevator 3. 【0038】 Furthermore, when the control unit 403 detects the completion of service by the elevator 3 based on a remote call, it performs control to send a power supply destination switching command to the charge / discharge device 2, which switches the power supply destination from the elevator 3 to the water supply pump 5. 【0039】 Furthermore, the control unit 403 also performs control to send various notifications to the administrator terminal 6a or the user terminal 6b before or after the power supply destination is switched. 【0040】 The administrator terminal communication unit 404 controls the transmission and reception of various signals or data between it and the administrator terminal 6a via the communication line N3. The user terminal communication unit 405 controls the transmission and reception of various signals or data between it and the user terminal 6b via the communication line N4. 【0041】 <Example of computer hardware configuration> Next, the configuration of the control systems (hardware configuration) of each device constituting the charge / discharge system 10 shown in Figure 1 will be explained with reference to Figure 2. 【0042】 Figure 2 is a block diagram showing an example of the hardware configuration of each device constituting the charge / discharge system 10. The computer 20 shown in Figure 2 is an example of hardware used as a computer capable of operating as the charge / discharge device 2 and control system 4 of the charge / discharge system 10 according to this embodiment. These devices constituting the charge / discharge system 10 according to this embodiment realize the processing related to the power supply destination switching method of the present invention by having the computer 20 (computer) execute a program and by having each functional block shown in Figure 1 work together. 【0043】 The computer 20 comprises a control unit 21, a non-volatile storage 22, a display unit 23, an operation input unit 24, and a communication interface 25, all connected to bus B. 【0044】 The control unit 21 includes a CPU (Central Processing Unit) 211, a ROM (Read Only Memory) 212, and a RAM (Random Access Memory) 213. 【0045】 The CPU 211 reads the program code of the software that implements each function according to this embodiment from the ROM 212, loads it into the RAM 213, and executes it. Note that the computer 20 may also include a processing unit such as an MPU (Micro-Processing Unit) instead of the CPU 211, and the CPU 211 and MPU may be used in combination in the computer 20. 【0046】 RAM213 temporarily stores variables and parameters that occur during calculations performed by CPU211. 【0047】 Examples of non-volatile storage 22 include HDDs (Hard Disk Drives), SSDs (Solid State Drives), NVRAMs (Non-Volatile Random Access Memory), flexible disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, and non-volatile memory cards. This non-volatile storage 22 stores the OS (Operating System), various parameters, and programs necessary for the computer 20 to function. The programs may also be stored in ROM 212. 【0048】 The program is stored in the form of computer-readable program code, and the CPU 211 sequentially executes operations according to that program code. In other words, the ROM 212 or non-volatile storage 22 is used as an example of a computer-readable, non-transient recording medium that stores a program executed by the computer. 【0049】 The display unit 23 is a monitor, for example, composed of an LCD (Liquid Crystal Display), and displays the results of processing performed by the computer 20. The operation input unit 24 is composed of, for example, a keyboard, mouse, or touch sensor, and generates operation signals in response to user operations and supplies them to the CPU 211. The display unit 23 and the operation input unit 24 may be integrated as a single touch panel. 【0050】 Communication I / F25 consists of communication devices and the like that control communication between other devices. 【0051】 <Power supply destination switching process> Next, the power supply destination switching process by the charge / discharge system 10 according to this embodiment will be described with reference to Figures 3 and 4. Figures 3 and 4 are flowcharts showing an example of the procedure for the power supply destination switching process by the charge / discharge system 10. 【0052】 Note that the process shown in Figure 3 is initiated when the building is experiencing a power outage and the power supply from the charge / discharge device 2 is directed to the water supply pump 5. First, the control unit 403 of the control system 4 (see Figure 1) determines whether or not it has received a remote call for elevator 3 from the user terminal 6b (step SA1). If step SA1 determines that no remote call has been received (step SA1 is determined to be 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 transmits a power supply destination switching command to the charge / discharge device 2 via the charge / discharge device communication unit 402, instructing it 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 control system 4 notifies the administrator terminal 6a via the administrator terminal communication unit 404 that there is a user of elevator 3 (step SA3). Then, the control unit 403 notifies the user terminal 6b via the user terminal communication unit 405 that it is requesting that users refrain from using water (step SA4). For example, the control unit 403 sends a message to the user terminal 6b such as, "We are switching the power supply source of the emergency power supply from the water pump to the elevator, so please refrain from using water." Through this process, the building's residents will be able to understand that they will not be able to use water in the future and will be able to take action to refrain from using water. 【0055】 Furthermore, if the equipment to which the power supplied from the electric vehicle 1 is supplied is lighting equipment within a building, the control unit 403 can notify the administrator terminal 6a and the user terminal 6b of the notice that the lighting equipment will become unusable. In other words, the control unit 403 will notify users of any inconvenience caused by the loss of power supply before the power supply destination is switched over. 【0056】 Next, the control unit 403 transmits information to the charge / discharge device 2 via the charge / discharge device communication unit 402 indicating that notification to the administrator terminal 6a and the user terminal 6b has been completed (step SA5). 【0057】 The external communication unit 210 of the charge / discharge device 2 receives a power supply destination switching command transmitted from the control system 4 in step SA2 (step SB1). Next, the control unit 205 of the charge / discharge device 2 reads out the power supplied to the water supply pump 5, as 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 water after seeing the notification requesting them to refrain from using water 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 a predetermined threshold. 【0058】 If, in step SB3, it is determined that the power supplied to the water supply pump 5 is not below a predetermined threshold (if step SB3 is determined to be NO), the control unit 205 determines whether a predetermined threshold time has elapsed since receiving the power supply destination switching command in step SB1 (step SB4). The threshold time can be set to a value of approximately 3 to 5 minutes, but the present invention is not limited thereto, and a time other than this may be set for the threshold time. If, in step SB4, it is determined that the threshold time has not elapsed (if step SB4 is determined to be NO), the control unit 205 returns to step SB2 to process. 【0059】 On the other hand, if it is determined in step SB4 that the threshold time has elapsed (if step SB4 is determined to be YES), the control unit 205 instructs the power supply destination switching unit 209 to switch the power supply destination from the water supply pump 5 to the elevator 3 (step SB5). Based on the instruction in step SB5, the power supply destination switching unit 209 switches the power supply destination from the water supply pump 5 to the elevator 3, and power supply to the elevator 3 begins. 【0060】 Then, the elevator 3, powered by the charging / discharging device 2, starts up (step SC1). 【0061】 Next, the control unit 205 of the charge / discharge device 2 transmits information that the power supply destination switchover is complete to the control system 4 via the external communication unit 210 (step SB6 in Figure 4). Then, the charge / discharge device communication unit 402 of the control system 4 receives the information that the power supply destination switchover is complete transmitted from the charge / discharge device 2 in step SB6 (step SA6). 【0062】 Next, the control unit 403 of the control system 4 notifies the administrator terminal 6a via the communication line N3 that the switchover to elevator 3, 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 water is temporarily unavailable (step SA8). Through these notifications, the resident of the building who possesses the user terminal 6b can understand that water is unavailable. 【0063】 Furthermore, in step SB5 of Figure 3, the power supply destination is switched to elevator 3, causing elevator 3 to start up (step SC1). Next, the elevator control unit 303 of elevator 3 performs the elevator operation service (step SC2). The elevator operation service is a service that, based on a remote call from the user terminal 6b, moves the elevator car (not shown) to the registered floor of the call, and after the user boards the car, transports the user to the destination floor. 【0064】 Next, the elevator control unit 303 determines whether the service has been completed (step SC3). That is, the elevator control unit 303 determines whether the elevator car has arrived at the destination floor and the passengers have disembarked. If it is determined in step SC3 that the service has not been completed (if step SC3 is determined to be NO), the elevator control unit 303 returns to step SC2 to continue processing. That is, it continues to provide the service. 【0065】 On the other hand, if it is determined in step SC3 that the service is complete (if step SC3 is determined to be YES), the elevator control unit 303 puts elevator 3 into a pause and transmits an elevator pause signal to the charge / discharge device 2 via the charge / discharge device communication unit 302 (step SC4). The elevator transceiver unit 207 of the charge / discharge device 2 then receives the elevator pause signal transmitted from elevator 3 in step SC4 (step SB7). 【0066】 Next, the control unit 205 of the charge / discharge device 2 instructs the power supply destination switching unit 209 to switch the power supply destination from elevator 3 to water supply pump 5 (step SB8). Based on this instruction, the power supply destination switching unit 209 performs the switch, and power supply to water supply pump 5 is resumed. Next, the control unit 205 transmits information that the power supply destination switchover is complete to the control system 4 via the external communication unit 210 (step SB9). Then, the charge / discharge device communication unit 402 of the control system 4 receives the information that the power supply destination switchover is complete, which was transmitted from the charge / discharge device 2 in step SB9 (step SA9). 【0067】 Next, the control unit 403 of the control system 4 notifies the administrator terminal 6a via the communication line N3 that the switchover to the water supply pump 5 is complete (step SA10). The control unit 403 also notifies the user terminal 6b via the communication line N4 that the switchover to the water supply pump 5 is complete (step SA11). Through this process, both the building owner or administrator and the users can be aware that the water supply is available again. 【0068】 In the embodiment described above, the control unit 403 of the control system 4 transmits a power supply destination switching command to the charge / discharge device 2 when the power supply destination from the electric vehicle 1 is a facility other than the elevator 3 (water supply pump 5) and a remote call is registered from the user terminal 6b. The control unit 205 of the charge / discharge device 2 then performs control to switch the power supply destination from the electric vehicle 1 from the water supply pump 5 to the elevator 3 based on the power supply destination switching command. Therefore, according to this embodiment, the facility to which the electric vehicle 1 supplies power can be switched as needed. 【0069】 Furthermore, in this embodiment, since the battery of the electric vehicle 1 is used as a power source during a power outage, it is possible to control the system by, for example, stopping the operation of the power supply equipment, such as elevator 3, first when the battery level drops, and then stopping the power supply. Therefore, unlike emergency power supplies, there is no momentary power interruption when the power supply runs out, thus preventing the elevator 3 from stopping midway through operation. 【0070】 Furthermore, if the battery level of electric vehicle 1 decreases, it can be replaced with another electric vehicle with sufficient charge, thereby ensuring a continuous supply of power to the building's equipment. 【0071】 Furthermore, in this embodiment, the control unit 403 of the control system 4 performs control to send a notification to the user terminal 6b requesting that users refrain from using the equipment, or a notification informing users that the equipment will become unavailable, either before or after sending a command to switch the power supply destination to the charge / discharge device 2. Therefore, residents of the building who possess the user terminal 6b can be aware in advance that the equipment will become unavailable and can take actions such as refraining from using the water. 【0072】 Furthermore, in this embodiment, the control unit 205 of the charge / discharge device 2 controls the power supply from the electric vehicle 1 to the elevator 3 when the power supplied to the building's equipment, such as the water supply pump 5, falls below a predetermined threshold. In other words, when a large number of residents have received notification and are refraining from using water, the power supply to the water supply pump 5 is stopped, thus preventing a situation where water use suddenly becomes impossible when many residents are using water. 【0073】 Furthermore, in this embodiment, even if the power supplied to equipment such as the water supply pump 5 is not below a predetermined threshold, if the elapsed time since receiving the power supply destination switching command exceeds a predetermined threshold time, the control unit 205 of the charge / discharge device 2 performs control to switch the power supply destination 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 that has registered a remote call to the elevator 3 from having to wait for the elevator 3 to start up for a long time. 【0074】 Furthermore, in this embodiment, when the control unit 205 of the charging / discharging device 2 receives an elevator stop signal from the elevator 3, it performs control to switch the power supply destination from the electric vehicle 1 from the elevator 3 to equipment such as the water supply pump 5. Therefore, according to this embodiment, when the operation of the elevator 3 based on the remote call ends, power supply to equipment such as the water supply pump 5 is resumed, so the time during which the building's residents cannot use the equipment can be limited to the minimum necessary. 【0075】 Furthermore, in this embodiment, the control unit 403 of the control system 4 performs control to notify the building manager or owner's administrator terminal 6a of the upcoming switchover of the power supply from the electric vehicle 1 and the completion of the switchover. Therefore, according to this embodiment, the building manager or owner possessing the administrator terminal 6a can appropriately grasp information on whether the building's facilities are usable or unusable during a power outage. 【0076】 In the embodiment described above, an example was given in which no restrictions were placed on remote calls from the user terminal 6b, but the present invention is not limited thereto. In order to prevent the registration of unnecessary remote elevator calls, the call registration floor, destination floor, etc. that can be registered in a remote call may be limited. For example, the control unit 403 of the control system 4 may only accept remote call registrations from the entrance floor or parking floor to tenant floors and residential floors, and for remote elevator call registrations from tenant floors and residential floors to the entrance floor or parking floor, a message such as the one encouraging the use of stairs (means of transportation other than elevator 3) may be sent. By performing such processing, the use of unnecessary elevator 3 during power outages will be reduced, thereby preventing frequent situations in which water cannot be used. 【0077】 Furthermore, after sending a message, the control unit 403 may accept a restricted remote call if it is registered again. This prevents situations where elevator 3 operation services are not provided to wheelchair users or users with disabilities. 【0078】 The embodiments described above are intended to explain the configuration of the apparatus and system in detail and concretely in order to make the present invention easier to understand, and are not necessarily limited to those comprising all the configurations described. 【0079】 Furthermore, the control lines or information lines shown as solid lines in Figures 1 and 2 are those deemed necessary for explanation and do not necessarily represent all control lines or information lines in the actual product. In reality, it can be assumed that almost all components are interconnected. 【0080】 Furthermore, in this specification, processing steps describing chronological processing include not only processing performed chronologically in the order described, but also processing that is not necessarily performed chronologically but is executed in parallel or individually (for example, parallel processing or processing by objects). 【0081】 Furthermore, each component of the charge / discharge system according to the above-described embodiment may be implemented on any hardware, as long as the respective hardware can send and receive information from each other via a network. Also, the processing performed by a certain functional block may be implemented by a single piece of hardware, or by distributed processing by multiple pieces of hardware. [Explanation of symbols] 【0082】 1...Electric vehicle, 2...Charging and discharging device, 3...Elevator, 4...Control system, 5...Water supply pump, 6a...Administrator terminal, 6b...User terminal, 10...Charging and discharging system, 201...AC / DC converter, 202...Charging unit, 203...Charging and discharging switching unit, 204...Discharging unit, 205...Control unit, 206...Power measurement unit, 207...Elevator transmission / reception 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...Administrator terminal communication unit, 405...User terminal communication unit

Claims

[Claim 1] A power supply system comprising an elevator installed within a building, a charging and discharging device capable of supplying power stored in an electric vehicle battery to the building's facilities, including the elevator, and a server that provides a remote call registration service for the elevator to a user's mobile terminal, The aforementioned server, When the power supply destination from the electric vehicle is equipment other than the elevator, and the remote call is registered from the user's mobile terminal, the system includes a first control unit that transmits a command to switch the power supply destination from the electric vehicle. The charging and discharging device is The system includes a second control unit that performs control to switch the power supply destination from the electric vehicle to the elevator from equipment other than the elevator, based on the aforementioned command. Power supply system. [Claim 2] The first control unit performs control to send a notification to the user's mobile terminal before or after transmitting the command to the charging / discharging device, requesting the user to refrain from using the equipment, or informing the user that the equipment will be unavailable. The power supply system according to claim 1. [Claim 3] The second control unit performs control to switch the power supply destination from the electric vehicle to the elevator when the power supplied to the equipment falls below a predetermined threshold. The power supply system according to claim 2. [Claim 4] Even if the power supplied to the equipment is not below a predetermined threshold, the second control unit performs control to switch the power supply destination from the electric vehicle to the elevator if the elapsed time since receiving the command exceeds a predetermined threshold time. The power supply system according to claim 3. [Claim 5] When the second control unit detects that the operation of the elevator based on the remote call, powered by the electric vehicle, has ended, it performs control to switch the power supply destination from the electric vehicle from the elevator to the equipment. The power supply system according to claim 4. [Claim 6] The first control unit performs control to notify the building manager or owner's mobile terminal of the upcoming switchover of the power supply from the electric vehicle and the completion of the switchover. A power supply system according to any one of claims 2 to 5. [Claim 7] The first control unit, when the power supply destination from the electric vehicle is a facility other than the elevator, and when the remote call is registered from the user's mobile terminal, performs control to send a message to the mobile terminal recommending the use of stairs, which is a means of transportation other than the elevator. A power supply system according to any one of claims 2 to 5. [Claim 8] A power supply system comprising an elevator installed in a building, a charging and discharging device capable of supplying power stored in an electric vehicle battery to the building's facilities including the elevator, and a server that provides a remote call registration service for the elevator to a user's mobile terminal, is used for switching the power supply destination. The first control unit of the server transmits a command to switch the power supply destination from the electric vehicle when the power supply destination from the electric vehicle is equipment other than the elevator and the remote call is registered from the user's mobile terminal, The procedure includes: the second control unit of the charging / discharging device performing control to switch the power supply destination from the electric vehicle from equipment other than the elevator to the elevator, based on the command. How to switch power supply providers.

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