Server device

Abstract

The present invention relates to a server device capable of improving convenience for a user of an electric vehicle. The server device includes: a communication unit; and a control unit that performs communication via the communication unit, and that transmits permission information for enabling the sell of the predetermined amount of power from the battery when the sell price corresponding to the predetermined amount of power of the battery of the vehicle is equal to or greater than the purchase price corresponding to the predetermined amount of power.

Description

Technical Field

[0001] The present disclosure relates to a server device. Background Art

[0002] In communities managed by municipalities, enterprises, etc., the concept of a community EMS (Energy Management System) is being promoted to manage the charging and discharging of various power sources distributed in the community, the power supply involved in the power system of the power company, and the power demand generated in the community as a whole. Various technologies for managing the supply and demand of electricity in the community have been proposed. The power sources in the community include not only power generation facilities installed in the community, but also electric vehicles moving in the community. Patent document 1 discloses a technology for controlling the charging and discharging of electric vehicles. In addition, patent document 2 discloses a technology for controlling the power sources in the community according to the requirements of the power company.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2018-207590

[0004] Patent Document 2: Japanese Patent No. 6997289

[0005] When charging or discharging the battery of an electric vehicle to supply electricity to the power company's system, a price is incurred. That is, the user of the electric vehicle pays the price of the electricity required for charging when charging, and receives the price of the electricity discharged from the system when discharging. Here, there is room for improving the convenience of users of electric vehicles. Summary of the invention

[0006] The present disclosure relates to a server device and the like that can improve the convenience of users of electric vehicles.

[0007] The server device in the present disclosure comprises: a communication unit; and a control unit, which communicates through the above-mentioned communication unit. When the selling price of electricity corresponding to the specified amount of electricity of the vehicle's battery is higher than the buying price of electricity corresponding to the above-mentioned specified amount of electricity, the above-mentioned control unit sends permission information for selling electricity of the above-mentioned specified amount of electricity from the above-mentioned battery.

[0008] According to the server device and the like of the present disclosure, it is possible to improve the convenience of users of electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a diagram showing a configuration example of an information processing system.

[0010] Figure 2 This is a sequence diagram showing an operation example of the information processing system.

[0011] Figure 3This is a sequence diagram showing an operation example of the information processing system. DETAILED DESCRIPTION

[0012] Hereinafter, embodiments will be described.

[0013] [System Configuration]

[0014] Figure 1 : is a diagram showing an example of the configuration of an information processing system in one embodiment. The information processing system 1 assists the efficient buying and selling of electricity with power companies in the community. The community is an arbitrary block or regional unit managed by a municipality, a company, etc. A charging and discharging device 14 for charging and discharging the power of a vehicle 12 driven by battery power is dispersedly installed in the community. In the community, in addition to charging the vehicle 12, the power is also consumed by various power loads 15 such as electrical products, lighting, and air conditioning equipment installed in residences, commercial facilities, etc. The power consumed in the community is supplied by purchasing (buying electricity) from the system 18 of the power company, or by generating electricity by a distributed power source 16 such as a power generation device based on alternative energy such as solar energy and wind power, a fuel cell, and a storage battery. In addition, the excess power generated in the community is sold (selling electricity) to the system 18. The purchase of electricity involved in the vehicle 12 is borne by the right holder of the vehicle 12, such as the user or owner (hereinafter collectively referred to as the user). In addition, the sales revenue of the sale of electricity involved in the vehicle 12 is enjoyed by the user of the vehicle 12. The information processing system 1 includes one or more server devices 10, vehicles 12, terminal devices 13, and charging and discharging devices 14, which are connected to each other via a network 11 so as to be able to communicate information with each other. The server device 10 controls charging (buying electricity) from the system 18 to the vehicle 12 and discharging (selling electricity) from the vehicle 12 to the system 18 via the charging and discharging device 14 according to the power supply and demand in the community.

[0015] The server device 10 belongs to a cloud computing system or other computing system, for example, and is a server computer that acts as a CEMS (CommunityEMS) server and a vehicle information server that manages information related to the vehicle 12. The vehicle 12 has a control / communication function, and is a passenger car, a multi-purpose vehicle, etc. that is driven by battery power, such as an electric vehicle (BEV; Battery Electric Vehicle), a hybrid electric vehicle (HEV; Hybrid Electric Vehicle), a plug-in hybrid electric vehicle (PHEV; Plug-in Hybrid Electric Vehicle), etc. The terminal device 13 is an information processing device with a communication function used by the user of the vehicle 12, such as a smartphone, a tablet terminal, etc. The network 11 is, for example, the Internet, but includes an ad hoc network, a LAN, a MAN (Metropolitan Area Network), or other networks or any combination thereof. The charging and discharging device 14 is a charging and discharging station set up in the community, including a charging and discharging pile for the vehicle 12 to be electrically connected, and is configured to be able to communicate with the server device 10 via the network 11. Among them, power conditioners, smart meters, etc. that are connected to the network 11 and configured to perform information communication transmit and receive information related to the operation of power loads 15 and distributed power sources 16 distributed in the community between the server device 10 via the network 11.

[0016] In this embodiment, the server device 10 has a communication unit 101 and a control unit 103 that communicates through the communication unit 101. When the price of electricity sold to the system 18 corresponding to the specified amount of electricity of the battery 128 of the vehicle 12 is higher than the price of electricity purchased from the system 18, the control unit 103 sends permission information for enabling electricity to be sold from the battery 128 to the system 18. By discharging from the vehicle 12 to the system 18 via the charging and discharging device 14 based on the permission information, the user of the vehicle 12 can enjoy the corresponding benefit of the electricity selling price exceeding the electricity purchasing price, or at least can prevent the excessive expenditure caused by purchasing electricity. Therefore, the convenience of the user of the electric vehicle can be improved.

[0017] [Configuration of Server Device 10]

[0018] The server device 10 has a communication unit 101, a storage unit 102, and a control unit 103. The server device 10 is, for example, a server computer. Alternatively, the server device 10 may be composed of two or more computers connected to communicate information and operate in coordination. In this case, Figure 1 The configuration shown can be appropriately configured on two or more computers.

[0019] The communication unit 101 includes one or more communication interfaces. The communication interface is, for example, a LAN interface. The communication unit 101 receives information used in the operation of the server device 10, and transmits information obtained by the operation of the server device 10. The server device 10 is connected to the network 11 through the communication unit 101, and performs information communication with the vehicle 12 or the charging and discharging device 14 via the network 11.

[0020] The storage unit 102 includes, for example, a main storage device, an auxiliary storage device, or one or more semiconductor memories functioning as a buffer memory, one or more magnetic memories, one or more optical memories, or a combination of at least two of them. The semiconductor memory is, for example, a RAM (Random Access Memory) or a ROM (Read Only Memory). The RAM is, for example, an SRAM (Static RAM) or a DRAM (Dynamic RAM). The ROM is, for example, an EEPROM (Electrically Erasable Programmable ROM). The storage unit 102 stores information used in the operation of the server device 10 and information obtained through the operation of the server device 10.

[0021] The control unit 103 includes one or more processors, one or more dedicated circuits, or a combination thereof. The processor is, for example, a general-purpose processor such as a CPU (Central Processing Unit), or a dedicated processor such as a GPU (Graphics Processing Unit) customized for specific processing. The dedicated circuit is, for example, an FPGA (Field-Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), etc. The control unit 103 performs information processing related to the operation of the server device 10 while controlling each unit of the server device 10.

[0022] The functions of the server device 10 are realized by executing a control program by a processor included in the control unit 103. The control program is a program for causing a computer to realize a function corresponding to the processing of the step by causing the computer to execute the processing of the step included in the operation of the server device 10. That is, the control program is a program for causing a computer to function as the server device 10. In addition, a part or all of the functions of the server device 10 may be realized by a dedicated circuit included in the control unit 103. In addition, the control program may be stored in a non-temporary recording / storage medium readable by the server device 10, and read from the medium by the server device 10.

[0023] [Configuration of the terminal device 13]

[0024] The terminal device 13 includes a communication unit 131, a storage unit 132, a control unit 133, a positioning unit 134, an input unit 135, and an output unit 136. The terminal device 13 is, for example, an information processing device such as a smartphone or a tablet terminal.

[0025] The communication unit 131 includes a communication module corresponding to a wired or wireless LAN standard, a module corresponding to a mobile communication standard such as LTE (Long Term Evolution), 4G (4th Generation), or 5G (5th Generation), etc. The terminal device 13 is connected to the network 11 via a nearby router device or a mobile communication base station through the communication unit 131, and performs information communication with other devices via the network 11.

[0026] The storage unit 132 includes one or more semiconductor memories, one or more magnetic memories, one or more optical memories, or a combination of at least two of them. The semiconductor memory is, for example, a RAM or a ROM. The RAM is, for example, an SRAM or a DRAM. The ROM is, for example, an EEPROM. The storage unit 132 functions as, for example, a main storage device, an auxiliary storage device, or a buffer memory. The storage unit 132 stores information used in the operation of the control unit 133 and information obtained by the operation of the control unit 133.

[0027] The control unit 133 has, for example, one or more general-purpose processors such as a CPU or an MPU (Micro Processing Unit), or one or more dedicated processors customized for specific processing. Alternatively, the control unit 133 may have one or more dedicated circuits such as an FPGA or an ASIC. The control unit 133 operates according to a control / processing program or according to an operation flow installed as a circuit, thereby uniformly controlling the operation of the terminal device 13. In addition, the control unit 133 sends and receives various information to the server device 10 or the like via the communication unit 131, and performs the operations involved in this embodiment.

[0028] The positioning unit 134 includes one or more GNSS (Global Navigation Satellite System) receivers. GNSS includes, for example, at least one of GPS (Global Positioning System), QZSS (Quasi-Zenith Satellite System), BeiDou, GLONASS (Global Navigation Satellite System), and Galileo. The positioning unit 134 obtains the location information of the terminal device 13 and transmits it to the control unit 133.

[0029] The input unit 135 includes one or more input interfaces. The input interface includes, for example, a physical key, an electrostatic capacitance key, a pointing device, a touch screen integrated with a display, a camera for acquiring a captured image or an image code, or an IC card reader. The input interface may include a microphone for receiving voice input. The input unit 135 receives input of information used in the operation of the control unit 133 and transmits the input information to the control unit 133.

[0030] The output unit 136 includes one or more output interfaces. The output interface is, for example, a display or a speaker. The display is, for example, an LCD (Liquid Crystal Display) or an organic EL (Electro-Luminescence) display. The output unit 136 outputs information obtained by the operation of the control unit 133.

[0031] The functions of the control unit 133 are realized by executing a control program by a processor included in the control unit 133. The control program is a program for causing the processor to function as the control unit 133. In addition, a part or all of the functions of the control unit 133 may be realized by a dedicated circuit included in the control unit 133.

[0032] [Configuration of Vehicle 12]

[0033] The vehicle 12 has a control device 120, a battery 128, and a driving unit 129 driven by the power of the battery 128, and the driving unit 129 is driven and travels under the control of the control device 120. The control device 120 has a configuration equivalent to the communication unit 131, storage unit 132, control unit 133, positioning unit 134, input unit 135 and output unit 136 of the terminal device 13, for example, including ECU (Electronic Control Unit) and the like. The control device 120 can be composed of two or more devices including a communicator. The communicator includes, for example, DCM (Data Communication Module) and the like. In addition, the control device 120 can be configured to include a personal computer, a smart phone, a tablet terminal, a navigation device, and the like. The battery 128 is, for example, a lithium-ion battery. The driving unit 129 has a motor and a control circuit thereof for driving a driving wheel, a brake mechanism, and the like. The vehicle 12 also has a detection unit 127. The detection unit 127 has sensors for detecting the remaining amount of the battery 128, the temperature of the motor of the drive unit 129, the current value, etc. Each unit is connected to each other or to other devices and apparatuses of the vehicle 12 via an in-vehicle network based on a standard such as CAN (Controller Area Network) so that information communication is possible. The control device 120 performs various information processing for controlling each unit of the vehicle 12 based on the information received from the detection unit 127.

[0034] [Configuration of the Charge and Discharge Device 14]

[0035] The charging and discharging device 14 has a control device 140 and a charging and discharging unit 48. The control device 120 has a configuration equivalent to the communication unit 131, the storage unit 132, the control unit 133, the input unit 135, and the output unit 136 of the terminal device 13. The charging and discharging unit 48 includes a connector and a power supply cable connected to the inlet of the vehicle 12, a switch for opening and closing the connection with the power load 15 or the power line of the system 18 in the community, and a charging and discharging station having a battery or a capacitor for storing electricity. The charging and discharging unit 48 can switch the switch according to the instruction from the control device 140, charge the battery 128 of the vehicle 12 with the power supplied from the system 18, or supply the power discharged from the battery 128 of the vehicle 12 to the power load 15 or the system 18.

[0036] [Operation of Information Processing System 1]

[0037] Figure 2 , Figure 3 It is a sequence diagram showing an operation example of the information processing system 1 . Figure 2 , Figure 3FIG. 2 shows the flow of cooperative operations involving the server device 10, the vehicle 12, the terminal device 13, and the charging and discharging device 14. Figure 2 , Figure 3 In the above, the steps involved in various information processing of the server device 10, the vehicle 12, the terminal device 13, and the charging and discharging device 14 are executed by the respective control units 103 or 133. In addition, the steps involved in the transmission and reception of various information of the server device 10, the vehicle 12, the terminal device 13, and the charging and discharging device 14 are executed by the respective control units 103 or 133 transmitting and receiving information to each other via the communication unit 101 or 131. In the server device 10, the vehicle 12, the terminal device 13, and the charging and discharging device 14, the respective control units 103 or 133 store the information to be transmitted and received in the storage unit 102 or 132 as appropriate. Furthermore, the respective control units 133 of the vehicle 12, the terminal device 13, and the charging and discharging device 14 receive input of various information through the input unit 135, and output various information through the output unit 136.

[0038] Figure 2 The process is executed, for example, when a user of the vehicle 12 charges the battery 128 of the vehicle 12 .

[0039] In step S21, the vehicle 12 or the terminal device 13 transmits a charging request to the server device 10. The charging request is information requesting permission to charge the vehicle 12, including identification information for determining the user and the vehicle 12. The control device 120 of the vehicle 12 or the terminal device 13, for example, displays a screen urging the user to input identification information and charging requirements. The user inputs identification information, information on charging requirements, etc., for example, by touching the touch panel. The identification information may be stored in advance in the storage unit 132. The control device 120 or the terminal device 13 transmits the charging request including the identification information input or read from the storage unit 132 to the server device 10. Alternatively, the charging request may be transmitted from the charging and discharging device 14 to the server device 10. For example, a user who drives the vehicle 12 into the charging and discharging station may operate the control device 140 to input information for the charging request, and the charging and discharging device 14 sends the charging request.

[0040] In step S22, the server device 10 transmits a charging permission to the charging and discharging device 14 in response to the charging request. The server device 10 determines the supply source of the power used for charging and generates information for specifying the supply source. The supply source is the system 18 or the distributed power source 16. The charging permission includes information for specifying the supply source of the power and information for allowing the charging and discharging device 14 to charge.

[0041] In step S23, the vehicle 12 charges the battery 128. The vehicle 12 is charged by the charging and discharging device 14 that can discharge in response to the charging permission. In the charging and discharging device 14, the control device 140 uses the power supplied from the system 18 to the charging and discharging unit 148, or instead of or in addition to this, uses the power generated and supplied by the distributed power source 16 to charge the battery 128 of the vehicle 12. Alternatively, for example, in the case where the user owns one of the distributed power sources 16 such as solar energy, the vehicle 12 can be charged by self-generated power achieved by the distributed power source 16 owned by the user. In this case, steps S21 and S22 can be omitted.

[0042] In step S25, the vehicle 12 transmits charging information to the server device 10. The charging information includes identification information of the vehicle 12 and information indicating the amount of electric power that has been charged (hereinafter referred to as the charge amount). In the vehicle 12, the control device 120 transmits the information of the charge amount obtained by the detection unit 127 to the server device 10. For example, the charge amount is calculated based on the difference in the SOC (State of Charge) value before and after charging. The charging information can be transmitted from the control device 120 of the vehicle 12 to the server device 10 via the terminal device 13. Alternatively, when the vehicle 12 is charged from the charging and discharging device 14, the charging and discharging device 14 can transmit the information of the charge amount derived from the integrated value of the current to the server device 10. When the vehicle 12 is charged by self-generated power, information indicating that the power supply source is self-generated power is added to the charging information.

[0043] In step S26, the server device 10 derives and stores the electricity purchase price information for each vehicle 12. The server device 10 derives the electricity purchase price information for each vehicle 12 specified by the identification information. The electricity purchase price information includes the amount of charge charged by the vehicle 12 in step S23 and its purchase price. The purchase price is obtained, for example, by multiplying the purchase price of electricity during charging (for example, the price per kWh) by the amount of charged electricity. The purchase price of electricity during charging is, for example, the purchase price of electricity provided by the power company, or the purchase price of electricity generated by the distributed power source 16 in the community when purchased from the application coordinator. The server device 10 obtains the purchase price of electricity from the server of the power company, the server of the application coordinator, and the like. The purchase price of electricity varies, for example, in each arbitrary time period, or varies according to the conditions of power generation of the distributed power source 16, such as weather conditions. For example, the server device 10 obtains the purchase price of electricity for the time period from when the charging request is received in step S21 to when the charging information is received in step S25. When the vehicle 12 is charged by self-generated electricity, the server device 10 sets the electricity purchase price to an arbitrary price (e.g., 0 yen to 50 yen / kWh). When the electricity purchase price changes during the time period for obtaining the electricity purchase price, the server device 10 uses, for example, a simple average of a plurality of electricity purchase prices or an average weighted according to the duration of each price. The server device 10 associates the derived electricity purchase price information with the identification information of each vehicle 12 and stores them in the storage unit 102.

[0044] Figure 3 The process is executed, for example, when the user of the vehicle 12 discharges the battery 128 of the vehicle 12 .

[0045] In step S31, the vehicle 12 or the terminal device 13 transmits a discharge request to the server device 10. The discharge request is information requesting permission for the vehicle 12 to discharge to sell electricity to the system 18, including identification information of the user and the vehicle 12 and the amount of electricity to be discharged (hereinafter referred to as the discharge amount). The control device 120 of the vehicle 12 or the terminal device 13, for example, displays a screen urging the user to input identification information, discharge amount, and discharge request. The user inputs identification information, discharge amount, discharge request information, etc., for example, by touching the touch panel. The identification information can be stored in advance in the storage unit 132. In addition, the discharge amount can be calculated, for example, based on the current battery remaining amount and an arbitrary target SOC value. The control device 120 or the terminal device 13 transmits the discharge request including the identification information input or read from the storage unit 132 to the server device 10. Alternatively, the discharge request can be transmitted from the charging and discharging device 14 to the server device 10. For example, a user who drives the vehicle 12 into a charging and discharging station can operate the control device 140 to input information for a discharge request, and the charge and discharge device 14 sends a discharge request.

[0046] In step S33, the server device 10 determines whether to sell electricity. The server device 10 determines whether to sell electricity for each vehicle 12 specified by the identification information. The server device 10 uses the discharge amount included in the discharge request and the Figure 2 The power purchase price information derived in step S26 is used to determine whether the power can be sold.

[0047] The server device 10 derives the selling price obtained by the user of the vehicle 12 through discharge. The selling price is obtained, for example, by multiplying the selling price of electricity at the time of discharge (for example, the price per kWh) by the discharge amount. The selling price of electricity at the time of discharge is, for example, the price at which an electric power company or an application coordinator purchases electricity. The server device 10 obtains the selling price of electricity from a server of an electric power company or an application coordinator. The selling price of electricity varies, for example, in each arbitrary time period according to the supply and demand of electricity. The server device 10 obtains, for example, the selling price of electricity in a time period of arbitrary length from the current moment (for example, a time obtained by adding an arbitrary blank time to a general discharge time corresponding to the discharge amount). When the selling price of electricity varies during the time period in which the selling price of electricity is obtained, the server device 10 uses, for example, a simple average of multiple selling prices of electricity or an average weighted according to the duration of each price. In addition, when selling electricity through the application coordinator, when the selling price of electricity varies according to the power generation of the distributed power source 16 in the community, since the power generation of the distributed power source 16 based on solar energy is affected by weather and location, the server device 10 can estimate the change of the selling price of electricity based on one or more of weather information, the location of the distributed power source 16, etc., and adjust the selling price of electricity. Acquire weather information from a server that provides weather information.

[0048] In addition, the server device 10 derives the purchase price of the discharged electricity. Figure 2 The power purchase price is derived from the power purchase price derived in step S26. In the case where power has been purchased at multiple power purchase prices in the past, the server device 10 derives the average of the power purchase prices weighted according to the amount of power purchased corresponding to the power purchase price as the power purchase price. The server device 10 multiplies the derived power purchase price by the discharge amount to derive the power purchase price.

[0049] The server device 10 determines that the user's electricity selling is permitted when the electricity selling price is higher than the electricity buying price, and determines that the user's electricity selling is not permitted when the electricity selling price is lower than the electricity buying price.

[0050] In step S34, the server device 10 transmits the discharge permission information to the charging and discharging device 14, or in addition to the vehicle 12 or the terminal device 13. The discharge permission information in the case of discharge includes information that the charging and discharging device 14 can accept the discharge from the vehicle 12 and information urging the user to execute the discharge. The control device 140 of the charging and discharging device 14, or in addition to the control device 120 of the vehicle 12 or the terminal device 13, prompts the user that the discharge is possible and urges the execution of the discharge. In this case, the discharge permission information may include information about the sales profit that the user can expect to enjoy by executing the discharge to sell electricity. On the other hand, the discharge permission information in the case of non-discharge includes information for prohibiting the charging and discharging device 14 from accepting the discharge from the vehicle 12 and information urging the user to stop the discharge. The control device 140 of the charging and discharging device 14, or in addition to the control device 120 of the vehicle 12 or the terminal device 13, prompts the user that the discharge is not possible and urges the termination of the discharge. In this case, the discharge permission information may include information about the sales loss that the user may suffer due to the discharge to sell electricity.

[0051] If discharge is possible, in step S35, the vehicle 12 discharges the battery 128. The vehicle 12 is discharged toward the charge-discharge device 14 that can receive the discharge. In the charge-discharge device 14, the control device 140 receives the electric power discharged from the battery 128 of the vehicle 12 through the charge-discharge unit 148 and transmits it to the system 18. If discharge is not possible, step S35 is omitted.

[0052] According to the above process, the user of the vehicle 12 can enjoy the corresponding benefit of the electricity selling price exceeding the electricity buying price, or at least can prevent the excessive expenditure caused by buying electricity. Therefore, the convenience of the user of the electric vehicle can be improved.

[0053] In a modified example, when determining whether electricity can be sold in step S33, the server device 10 generates an electricity selling plan that prompts electricity selling at an arbitrary time after the specified electricity selling price rises when predicting an increase in the electricity selling price based on information from the power company within an arbitrary set time. In addition, the server device 10 includes the electricity selling plan in the discharge information and transmits it to the vehicle 12 or the terminal device 13. In this way, the user of the vehicle 12 can know that if the discharge is delayed to a certain extent, further sales revenue will be obtained. Therefore, the convenience of the user is further improved.

[0054] In other variations, when determining whether electricity can be sold in step S33, the server device 10 adjusts the electricity purchase price taking into account the change when predicting a change in the electricity purchase price based on information from the power company after an arbitrarily set elapsed time. The user of the vehicle 12 can foresee that after selling electricity, it is necessary to recharge an amount of electricity equal to the amount discharged. In this case, depending on the change in the electricity purchase price when recharging, the user's long-term sales revenue may increase or be compressed. Therefore, the server device 10 derives the electricity purchase price, for example, using the average of the past unit price of electricity purchase and the unit price of electricity purchase expected after discharge. In this way, the cost of long-term electricity purchase can be averaged to evaluate the sales revenue expected through the user's selling of electricity in the long term. Therefore, the sales revenue can be pursued more meticulously.

[0055] In the above-mentioned embodiment, the processing / control program that specifies the actions of the control unit 133 of the control device 120 of the vehicle 12, the terminal device 13, or the control unit 133 of the control device 140 of the charging and discharging device 14 can be stored in the storage unit 102 of the server device 10 or the storage unit of other server devices and downloaded to each device via the network 11, or it can be stored in a non-temporary recording / storage medium readable by each device and read from the medium by each device.

[0056] In the above, the implementation mode is described based on the drawings and embodiments, but it should be noted that it is easy for a person skilled in the art to make various deformations and modifications based on the present disclosure. Therefore, it should be noted that these deformations and modifications are included in the scope of the present disclosure. For example, the functions included in each mechanism, each step, etc. can be reconfigured in a logically non-contradictory manner, and multiple mechanisms, steps, etc. can be combined into one, or divided.

[0057] Description of reference numerals:

[0058] 1…information processing system; 10…server device; 11…network; 12…vehicle; 13…terminal device; 14…charging and discharging device; 15…power load; 16…distributed power source; 18…system; 101, 131…communication unit; 102, 132…storage unit; 103, 133…control unit; 127…detection unit; 128…battery; 129…drive unit; 134…positioning unit; 135…input unit; 136…output unit; 148…charging and discharging unit.

Claims

1. A server device, wherein: have: Ministry of Communications; and a control unit, communicating through the communication unit, The control unit sends permission information for enabling the battery to sell the predetermined amount of electric power when a selling price of electric power corresponding to a predetermined amount of electric power of the battery of the vehicle is equal to or higher than a buying price of electric power corresponding to the predetermined amount of electric power.

2. The server device according to claim 1, wherein: The control unit sends out a power selling plan indicating a period of time when the battery sells the predetermined amount of power.

3. The server device according to claim 2, wherein: The control unit predicts a change in the electricity selling price based on one or more of a time, a place, and weather at which the electricity selling is performed.

4. The server device according to claim 1, wherein: The control unit derives the electricity purchase price using a price when the predetermined amount of electricity is charged or a price predicted when the predetermined amount of electricity is purchased after the electricity is sold.

5. The server device according to claim 1, wherein: When a plurality of electricity selling prices are associated with the electricity selling of the predetermined amount of electric power, the control unit uses an average of the plurality of electricity selling prices.

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