Type-specific stored electricity amount calculation device, type-specific stored electricity amount calculation method, and program

Abstract

To make it possible to sell a specific type of power out of power stored in a power storage battery of a moving body.SOLUTION: A power storage calculator for every type comprises: an acquisition part for acquiring charge / discharge history information with which a charge / discharge amount in a power storage battery of a moving body and a power type thereof are associated, and power storage amount information indicating a power storage amount of the power storage battery; and a calculation part for calculating the power storage amount of the power storage battery for every type of power, based on the charge / discharge history information and the power storage amount information.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a type-based power storage amount calculation device, a type-based power storage amount calculation method, and a program.

Background Art

[0002] Technologies related to charging and discharging of storage batteries have been proposed. For example, when charging an electric vehicle and when selling the charging power of an electric vehicle, the power charging / selling device described in Patent Document 1 advertises by obtaining power trading price information from one or more power supply company servers. When the user selects a power supply company, the power charging / selling device described in Patent Document 1 performs charging or selling of charging power between the selected power supply company and the electric vehicle.

[0003] Further, the distributed power source control device described in Patent Document 2 predicts power curves at off-peak and peak times based on the power supply state in the time period when the power consumption from the distribution line goes from peak to off-peak and the power supply state in the time period when it goes from off-peak to peak. Then, the distributed power source control device described in Patent Document 2 controls the charging and discharging of the storage battery connected to the distribution line based on the predicted power curve.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] If a mobile body equipped with a storage battery is used, it becomes possible to sell electricity at the destination of the mobile body. At that time, if the amount of electricity stored for each type of electricity can be calculated, such as calculating the amount of green electricity stored in the storage battery of the mobile body, it becomes possible to sell a specific type of electricity, such as selling green electricity.

[0006] An object of the present invention is to provide a type-specific power storage amount calculation device, a type-specific power storage amount calculation method, and a program that can solve the above-described problems.

Means for Solving the Problems

[0007] According to a first aspect of the present invention, a type-specific power storage amount calculation device includes: an acquisition unit that acquires charge / discharge amount information of a storage battery of a mobile body, charge / discharge history information in which types of power including green power and non-green power are associated, and power storage amount information indicating the power storage amount of the storage battery; based on the charge / discharge history information and the power storage amount information, calculates the power storage amount of the storage battery for each type of power, and when the mobile body moves, for each section of the movement route of the mobile body in which information on the charge amount and discharge amount of the storage battery can be obtained, adds the charge amount in that section to the power storage amount of each type of power before the start of movement in that section for each type of power, and then subtracts the discharge amount in that section for each type of power If a partial section in which only either the charge amount information or the discharge amount information is obtained is included in one of the intervals, for the entire interval including the partial section, after adding the charge amount in that interval to the power type-specific stored power amount before the start of movement of that interval for each power type, subtract the discharge amount in that interval for each power type to calculate the power storage amount of the storage battery at the end of movement in that section for each type of power, and a calculation unit that subtracts the discharge amount from the power storage amount for each type of power on the assumption that non-green power is preferentially consumed for the discharge amount of the storage battery due to the movement of the mobile body.

[0008] According to a second aspect of the present invention, a method for calculating the amount of stored power by type includes obtaining charge / discharge history information in which the charge / discharge amount of a storage battery of a moving body is associated with the types of power including green power and non-green power, and stored power information indicating the amount of stored power of the storage battery, calculating the amount of stored power of the storage battery by type based on the charge / discharge history information and the stored power information, and when the moving body moves, for each section of the moving path of the moving body in which information on the charge amount and discharge amount of the storage battery can be obtained, adding the charge amount in that section to the stored power of that type of power before the start of movement in that section by type of power, and then subtracting the discharge amount in that section by type of power. If a partial section in which only either the charge amount information or the discharge amount information is obtained is included in one of the intervals, for the entire interval including the partial section, after adding the charge amount in that interval to the power type-specific stored power amount before the start of movement of that interval for each power type, subtract the discharge amount in that interval for each power type Thereafter, the amount of stored power of the storage battery at the end of movement in that section is calculated by type of power, and for the discharge amount of the storage battery due to the movement of the moving body, assuming that non-green power is preferentially consumed, the discharge amount is subtracted from the stored power by type of power.

[0009] According to a third aspect of the present invention, a program causes a computer to obtain charge / discharge history information in which the charge / discharge amount of a storage battery of a moving body is associated with the types of power including green power and non-green power, and stored power information indicating the amount of stored power of the storage battery, calculate the amount of stored power of the storage battery by type based on the charge / discharge history information and the stored power information, and when the moving body moves, for each section of the moving path of the moving body in which information on the charge amount and discharge amount of the storage battery can be obtained, adding the charge amount in that section to the stored power of that type of power before the start of movement in that section by type of power, and then subtracting the discharge amount in that section by type of power. If a partial section in which only either the charge amount information or the discharge amount information is obtained is included in one of the intervals, for the entire interval including the partial section, after adding the charge amount in that interval to the power type-specific stored power amount before the start of movement of that interval for each power type, subtract the discharge amount in that interval for each power type Thereafter, the amount of stored power of the storage battery at the end of movement in that section is calculated by type of power, and for the discharge amount of the storage battery due to the movement of the moving body, assuming that non-green power is preferentially consumed, the discharge amount is subtracted from the stored power by type of power, and it is a program for causing the computer to execute these operations.

Advantages of the Invention

[0010] According to this invention, among the power stored in the storage battery of the moving body, a specific type of power can be sold.

Brief Description of the Drawings

[0011]

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DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described. However, the following embodiments do not limit the invention according to the claims. Also, not all combinations of features described in the embodiments are essential for the solution means of the invention. FIG. 1 is a schematic configuration diagram showing an example of the device configuration of a power system according to an embodiment. In the configuration shown in FIG. 1, the power system 1 includes a mobile body owner facility 10, a power supply station facility 20, a business operator facility 30, a mobile body 40, a smartphone 50, a network server device 60, a power company facility 70, a communication network 80, and a power grid 90. The mobile body owner facility 10 includes an owner-side communication master unit 11, an owner-side smart meter 12, an owner-side charger / discharger 13, and a solar power generator 14. The power supply station facility 20 includes a power supply station-side communication master unit 21, a power supply station-side smart meter 22, and a power supply station-side charger / discharger 23. The business operator facility 30 includes a business operator-side communication master unit 31, a business operator-side smart meter 32, a business operator-side charger / discharger 33, a business operator-side storage battery 34, and a business operator-side server device 35. The mobile body 40 includes a communication slave unit 41, a built-in storage battery 42 in the mobile body, and a mobile body control unit 43.

[0013] The power system 1 is a system that conducts power trading using the mobile body 40. The mobile body referred to here is a movable machine. Hereinafter, the case where the mobile body 40 is an electric vehicle will be described as an example. However, the mobile body 40 is not limited to a specific type of machine, and may be manned or unmanned. As the mobile body 40, various movable and chargeable / dischargeable machines can be used. For example, the mobile body 40 may be an aircraft, a drone, a manned or unmanned ship, or an unmanned transport cart.

[0014] The number of mobile bodies 40 used in the power system 1 may be one or more. When there are a plurality of mobile bodies 40 used in the power system 1, the owners of these plurality of mobile bodies 40 may be the same or different. Also, the mobile body 40 may be configured as a part of the power system 1 or may be an external configuration of the power system 1.

[0015] The communication sub-device 41 communicates with other devices. In particular, when the mobile body 40 is located at the mobile body owner's facility 10 and the charge and discharge of the in-vehicle battery 42 are performed, the communication sub-device 41 communicates with the owner-side communication master device 11 to exchange information and instructions for charge and discharge, such as notification of the charge and discharge power amount. When the mobile body 40 is located at the power supply facility 20 and the charge and discharge of the in-vehicle battery 42 are performed, the communication sub-device 41 communicates with the operator-side communication master device 31 to exchange information and instructions for charge and discharge, such as notification of the charge and discharge power amount. When the mobile body 40 is located at the operator's facility 30 and the charge and discharge of the in-vehicle battery 42 are performed, the communication sub-device 41 communicates with the operator-side communication master device 31 to exchange information and instructions for charge and discharge, such as notification of the charge and discharge power amount.

[0016] The in-vehicle battery 42 stores electrical energy. Electrical energy is also referred to as electric power. Therefore, the term "electric power" is used in both the meaning of electrical energy and the meaning of the work done by current per unit time. The electrical energy stored in the in-vehicle battery 42 is used as energy for the movement of the mobile body 40. Also, the electrical energy of the amount of electrical energy regarded as green power among the electrical energy stored in the in-vehicle battery 42 is the subject of selling electricity at the operator's facility 30.

[0017] The movement control unit 43 controls each part of the mobile body 40 to perform various processes, such as controlling the movement of the mobile body 40 and processes for charge and discharge of the in-vehicle battery 42. The movement control unit 43 may be configured using an in-vehicle computer, and the function of the movement control unit 43 may be executed by the CPU (Central Processing Unit) of the in-vehicle computer reading a program from the storage unit of the in-vehicle computer and executing it.

[0018] The mobile body owner's facility 10 is a facility owned by the owner of the mobile body 40. The mobile body owner's facility 10 may be an office or a private house. Therefore, the mobile body 40 may be a business vehicle such as a commercial vehicle or a vehicle for personal use (a vehicle for private use).

[0019] The owner-side communication master device 11 communicates with other devices. In particular, when the mobile body 40 charges and discharges the in-vehicle battery 42 at the mobile body owner's facility 10, the owner-side communication master device 11 communicates with the communication slave device 41 to exchange information and instructions for charging and discharging, such as notification of the amount of charge and discharge power.

[0020] The owner-side smart meter 12 measures the input and output power amounts in each part of the utility facility 30. In particular, the owner-side smart meter 12 measures the amount of power generated by the solar power generator 14 that is used for charging the in-vehicle battery 42. Also, the owner-side smart meter 12 measures the amount of commercial power received by the mobile body owner's facility 10 from the power grid 90 that is used for charging the in-vehicle battery 42.

[0021] For example, the owner-side smart meter 12 may be provided with a slave device that measures the amount of power generated by the solar power generator 14 and a slave device that measures the charge and discharge power between the owner-side charger 13 and the in-vehicle battery 42. And when the amount of power generated by the solar power generator 14 is greater than the amount of power for charging the in-vehicle battery 42, the entire amount of power for charging the in-vehicle battery 42 may be treated as the amount of power generated by the solar power generator 14.

[0022] The owner-side charger 13 is electrically connected to the in-vehicle battery 42 and exchanges power with the in-vehicle battery 42. When the in-vehicle battery 42 charges, a current flows from the owner-side charger 13 to the in-vehicle battery 42. When the in-vehicle battery 42 discharges, a current flows from the in-vehicle battery 42 to the owner-side charger 13. The owner-side charger 13 may be configured as a charging stand.

[0023] The solar power generator 14 generates electricity upon receiving sunlight and outputs the generated electric power. The solar power generator 14 corresponds to an example of a power generation facility that generates green power, and the electric power generated by the solar power generator 14 is treated as green power. However, the green power generation facility provided in the mobile body owner facility 10 is not limited to a specific type of power generation facility. For example, the mobile body owner facility 10 may be provided with a wind power generator in addition to or instead of the solar power generator 14.

[0024] The power supply facility 20 supplies power to the mobile body 40. The power supply facility 20 may be configured as a commercial charging station. The power supply side communication master unit 21 communicates with other devices. In particular, when the mobile body 40 charges the in-vehicle battery 42 at the power supply facility 20, the power supply side communication master unit 21 communicates with the communication slave unit 41 to exchange information and instructions for charging, such as notification of the amount of charging power.

[0025] The power supply side smart meter 22 measures the amount of input and output power at the power supply facility 20. In particular, the power supply side smart meter 22 measures the amount of charging power to the in-vehicle battery 42 at the power supply facility 20. The power supply side charger / discharger 23 is electrically connected to the in-vehicle battery 42 and exchanges power with the in-vehicle battery 42. In particular, a current flows from the power supply side charger / discharger 23 to the in-vehicle battery 42 to charge the in-vehicle battery 42. The power supply side charger / discharger 23 may be configured as a charging stand.

[0026] Hereinafter, a case where all the charging power from the power supply side charger / discharger 23 to the in-vehicle battery 42 is treated as non-green power will be described as an example. However, when the charging power from the power supply side charger / discharger 23 to the in-vehicle battery 42 can be associated with the power generation source, part or all of the charging power may be treated as green power according to the power generation source of this charging power.

[0027] The operator facility 30 is the facility of the operator who purchases electricity, and purchases the discharge power of the in-vehicle built-in battery 42. Hereinafter, a case where the operator facility 30 purchases only green power among the stored power of the in-vehicle built-in battery 42 will be described as an example. However, the operator facility 30 may also purchase non-green power. In that case, the purchase prices may differ between green power and non-green power. In addition, the operator facility 30 may not only receive the discharge power of the in-vehicle built-in battery 42 but also be able to charge the in-vehicle built-in battery 42.

[0028] The operator-side communication master unit 31 communicates with other devices. In particular, when the moving body 40 performs charging and discharging of the in-vehicle built-in battery 42 at the operator facility 30, the operator-side communication master unit 31 communicates with the communication slave unit 41 to exchange information and instructions for charging and discharging, such as notification of the amount of charging and discharging power. The operator-side smart meter 32 measures the input and output power amounts in the operator facility 30. In particular, the operator-side smart meter 32 measures the discharge power amount of the in-vehicle built-in battery 42 in the operator facility 30.

[0029] The operator-side charger 33 is electrically connected to the in-vehicle built-in battery 42 and exchanges power with the in-vehicle built-in battery 42. In particular, when the in-vehicle built-in battery 42 discharges, a current flows from the in-vehicle built-in battery 42 to the operator-side charger 33. The operator-side charger 33 may be configured as a charging stand. The operator-side battery 34 stores power. In particular, the operator-side charger 33 is charged with the discharge power of the in-vehicle built-in battery 42 (the power purchased by the operator) to store the discharge power of the in-vehicle built-in battery 42.

[0030] The smartphone 50 is a smartphone owned by the owner of the mobile body 40. The smartphone 50 communicates with the communication slave unit 41 and functions as a user interface for charging and discharging the mobile body 40. However, the mobile body 40 may be provided with another user interface in addition to or instead of the smartphone 50. For example, the mobile body 40 may be provided with a touch panel on the driver's seat as a user interface.

[0031] The network server device 60 stores charge and discharge history information in which the charge and discharge power amounts of the in-vehicle battery 42 in each of the mobile body owner facilities 10, the power supply station facilities 20, and the operator facilities 30 are associated with the distinction between green power and non-green power, and the charge and discharge date and time. Further, the network server device 60 calculates the amount of green power among the stored power amounts of the in-vehicle battery 42 based on the charge and discharge history information, and determines the power selling amount from the in-vehicle battery 42 at the operator facilities 30. The network server device 60 corresponds to an example of a type-specific power storage amount calculation device. The network server device 60 is configured using a computer such as a workstation or a personal computer (PC), for example.

[0032] The electric power company facilities 70 are facilities provided by the electric power company. The electric power company facilities 70 include a power plant and supply commercial power. Further, the electric power company facilities 70 are provided with a server device and perform processes such as determining the validity of the solar power generator ID, which is the identification information of the solar power generator. The communication network 80 provides a communication path between each device. For example, the communication network 80 mediates communication between the owner-side communication master unit 11, the power supply station-side communication master unit 21, the operator-side communication master unit 31, the network server device 60, and the smartphone 50. The power grid 90 is a distribution network for commercial power. Hereinafter, a case where all the power supplied by the power grid 90 is treated as non-green power will be described as an example. However, a part of the power supplied by the power grid 90 may be treated as green power.

[0033] Hereinafter, a case will be described as an example in which the mobile body 40 that has departed from the mobile body owner facility 10 is charged at the power supply station facility 20 and then arrives at the operator facility 30 to sell green power. However, the route of the mobile body 40 is not limited to a specific route. Also, the location where the mobile body 40 performs charging and discharging is not limited to a specific location. Moreover, the number of mobile body owner facilities 10, the number of power supply station facilities 20, and the number of operator facilities 30 included in the power system 1 may each be one or more, and are not limited to a specific number.

[0034] FIG. 2 is a schematic block diagram showing an example of the functional configuration of the network server device 60. In the configuration shown in FIG. 2, the network server device 60 includes a communication unit 61, a storage unit 62, and a control unit 63. The control unit 63 includes an acquisition unit 64 and a calculation unit 65. The communication unit 61 performs communication with other devices. In particular, the communication unit 61 communicates with the owner-side communication master unit 11 to acquire information on the charging and discharging of the in-vehicle battery 42 in the mobile body owner facility 10. Also, the communication unit 61 communicates with the power supply station-side communication master unit 21 to acquire information on the charging and discharging of the in-vehicle battery 42 in the power supply station facility 20. Also, the communication unit 61 communicates with the operator-side communication master unit 31 to acquire information on the charging and discharging of the in-vehicle battery 42 in the operator facility 30.

[0035] The storage unit 62 stores various information. For example, the storage unit 62 stores the charging and discharging history information described above. The storage unit 62 is configured using a storage device included in the network server device 60. The control unit 63 controls each part of the network server device 60 to perform various processes. The functions of the control unit 63 are executed by the CPU included in the network server device 60 reading a program from the storage unit 62 and executing it.

[0036] The acquisition unit 64 acquires charge / discharge history information. For example, the acquisition unit 64 collates the charge / discharge information of the in-vehicle battery 42 received by the communication unit 61 from the owner-side communication master unit 11, the power supply station-side communication master unit 21, and the operator-side communication master unit 31 into the charge / discharge history information. The acquisition unit 64 acquires the charge / discharge history information and stores it in the storage unit 62.

[0037] The acquisition unit 64 may acquire charge / discharge history information in which the amount of green power charged to the in-vehicle battery 42 is associated with the identification information of the power generation facility that generated the green power. For example, when the in-vehicle battery 42 is charged with the power generated by the solar power generator 14, the amount of charge of the in-vehicle battery 42 and the solar power generator ID of the solar power generator 14 may be associated in the charge / discharge history information.

[0038] Further, the acquisition unit 64 acquires power storage amount information indicating the power storage amount of the in-vehicle battery 42. For example, the acquisition unit 64 may acquire information on the amount of power stored calculated by the in-vehicle battery 42 itself based on the SOC (State Of Charge). Alternatively, the acquisition unit 64 may calculate the current power storage of the in-vehicle battery 42 based on information on the past power storage amount of the in-vehicle battery 42 and the charge / discharge information of the in-vehicle battery 42.

[0039] When the moving body 40 is equipped with a generator or generates power by regenerative power generation or the like, the acquisition unit 64 may further acquire power generation amount information indicating the power generation amount of the moving body 40. The acquisition unit 64 may further acquire a measured value of the charge / discharge amount of the in-vehicle battery 42 measured by a sensor provided in the moving body 40 when the moving body 40 moves. For example, the amount of power discharged by the in-vehicle battery 42 as the driving power of the moving body 40 may be measured, and the acquisition unit 64 may acquire this measured value of the power amount. Also, when the generated power of the moving body 40 is charged to the in-vehicle battery 42, the sensor may measure the amount of charge of the in-vehicle battery 42, and the acquisition unit 64 may acquire this measured value of the power amount.

[0040] The sensor for measuring the charging power amount and discharging power amount of the in-vehicle battery 42 may be configured as one sensor. Alternatively, a sensor for measuring the charging power amount and a sensor for measuring the discharging power amount may be provided respectively. The sensor for measuring the charging power amount and discharging power amount of the in-vehicle battery 42 may be used not only when the moving body 40 is moving but also when the moving body 40 is stopped. For example, the sensor for measuring the charging power amount may also measure the charging power amount when the in-vehicle battery 42 is charged at the power supply facility 20.

[0041] The calculation unit 65 calculates the power storage amount of the in-vehicle battery 42 by power type based on the charge / discharge history information and the power storage amount information. The types of power here may be, for example, green power and non-green power, but are not limited thereto. Also, when the moving body 40 generates power, the calculation unit 65 may further calculate the power storage amount of the battery by power type based on the power generation amount information. In this case, the generated power of the moving body 40 may be treated as green power or non-green power.

[0042] The calculation unit 65 may further calculate the power storage amount of the in-vehicle battery 42 by power type based on the charging power amount and discharging power amount of the in-vehicle battery 42 when the moving body 40 is moving. Thereby, the power storage amount (remaining power storage amount) of the moving body 40 can be calculated more accurately by power type.

[0043] When the in-vehicle battery 42 is charged at the power supply facility on the moving route of the moving body 40, the calculation unit 65 may be used to calculate the power storage amount of the in-vehicle battery 42 at the end of charging at the power supply facility by power type based on the power storage amount by power type before the start of movement of the moving body 40 and the power storage amount at the power supply facility.

[0044] For example, the calculation unit 65 may acquire information on the amount of power stored in the in-vehicle battery 42 of the moving body 40 when the moving body 40 departs from the moving body owner facility 10 for each type of power (by type). Then, the calculation unit 65 may calculate information on the amount of power stored in the in-vehicle battery 42 of the moving body 40 when charging of the in-vehicle battery 42 at the power supply facility 20 is completed for each type of power. Further, the calculation unit 65 may calculate information on the amount of power stored in the in-vehicle battery 42 of the moving body 40 when the moving body 40 arrives at the power supply facility 20 for each type of power.

[0045] In this way, by the calculation unit 65 acquiring information on the state of charge of the in-vehicle battery 42 of the moving body 40 during the movement of the moving body 40 and calculating the state of charge of the in-vehicle battery 42 when the moving body 40 arrives at the carrier facility 30, information indicating a state of charge that is more in line with the actual situation can be obtained than when calculating the state of charge of the in-vehicle battery 42 when the moving body 40 arrives at the carrier facility 30 using only the information at the time of departure of the moving body 40.

[0046] With reference to FIGS. 3 to 6, an example of the calculation of the amount of stored power by the calculation unit 65 will be described. FIG. 3 is a diagram showing a first example of the calculation of the amount of power for each type of power by the calculation unit 65. In the example of FIG. 3, when the moving body 40 departs from the moving body owner facility 10, the in-vehicle battery 42 stores 5 kilowatt-hours (kWh) of green power and 3 kilowatt-hours of non-green power, for a total of 8 kilowatt-hours of stored power. Also, the in-vehicle battery 42 is charged with 10 kilowatt-hours of non-green power at the power supply facility 20. Further, the power consumption of the moving body 40 on the movement route from the moving body owner facility 10 to the carrier facility 30 is 10 kilowatt-hours.

[0047] In the example of FIG. 3, the power consumption of the moving body 40 on the movement route is obtained, but the individual power consumptions such as the power consumption before arriving at the power supply facility 20 and the power consumption after departing from the power supply facility 20 are unknown. In this case, it is impossible to accurately know the state of charge of the in-vehicle battery 42 when the moving body 40 arrives at or departs from the power supply facility 20. Therefore, the calculation unit 65 may calculate the amount of stored power of the in-vehicle battery 42 by power type when the moving body 40 arrives at the operator facility 30 based on the total value of the amount of stored power of the in-vehicle battery 42 by power type when the moving body 40 departs from the moving body owner facility 10 and the amount of power supplied at the power supply facility 20.

[0048] In the case of the example in FIG. 3, the calculation unit 65 calculates the total value of the non-green power amount of 3 kWh of the in-vehicle battery 42 when the moving body 40 departs from the moving body owner facility 10 and the non-green power amount of 10 kW supplied at the power supply facility 20 as 13 kWh. Then, for the power consumption amount of 10 kWh of the moving body 40, assuming that non-green power is preferentially consumed, it subtracts from the 13 kWh of the non-green power amount.

[0049] As a result, the calculation unit 65 calculates the green power amount of the in-vehicle battery 42 when the moving body 40 arrives at the operator facility 30 as 5 kWh and the non-green power amount as 3 kWh. In this way, even when the power consumption amount of the moving body 40 is not clear before and after power supply during the route, the calculation unit 65 can calculate the amount of stored power of the in-vehicle battery 42 by power type when the moving body 40 arrives at the operator facility 30.

[0050] FIG. 4 is a diagram showing a second example of the calculation of the amount of power by power type by the calculation unit 65. In the example of FIG. 4, when the moving body 40 departs from the moving body owner facility 10, the in-vehicle battery 42 stores 5 kWh of green power and 3 kWh of non-green power, for a total of 8 kWh of stored power. Also, the in-vehicle battery 42 is charged with 10 kWh of non-green power at the power supply facility 20.

[0051] Also, different from the case of FIG. 3, in the example of FIG. 4, the power consumption of the moving body 40 is obtained before arriving at the power supply facility 20 and after the power supply facility 20 departs, respectively. The power consumption amount of the moving body 40 before arriving at the power supply facility 20 is 5 kWh. The power consumption amount of the moving body 40 after the power supply facility 20 departs is also 5 kWh.

[0052] In the case of the example of FIG. 4, for the power consumption amount of 5 kWh of the moving body 40 before arriving at the power supply facility 20, it is assumed that 3 kWh of non-green power is preferentially consumed, and the shortage of 2 kWh is consumed from 5 kWh of green power. Thereby, the calculation unit 65 calculates the stored power amount of the in-vehicle battery 42 of the moving body 40 when arriving at the power supply facility 20 as 3 kWh of green power amount and 0 kWh of non-green power amount.

[0053] Adding the 10 kWh of non-green power supplied by the power supply facility 20 to this, the calculation unit 65 calculates the stored power amount of the in-vehicle battery 42 of the moving body 40 when the power supply facility 20 departs as 3 kWh of green power amount, 10 kWh of non-green power amount, and a total of 13 kWh.

[0054] And, for the power consumption amount of 5 kWh of the moving body 40 after the power supply facility 20 departs, it is assumed that non-green power is preferentially consumed. Thereby, the calculation unit 65 calculates the stored power amount of the in-vehicle battery 42 of the moving body 40 when arriving at the business operator facility 30 as 3 kWh of green power amount, 5 kWh of non-green power amount, and a total of 8 kWh.

[0055] Comparing the example of FIG. 3 and the example of FIG. 4, in the example of FIG. 4, before the moving body 40 arrives at the power supply facility 20, the calculation result reflects the situation where the stored power amount of non-green power reaches the bottom and the green power amount is also consumed. In this regard, it can be said that the example of FIG. 4 has a calculation result that conforms to the actual situation.

[0056] FIG. 5 is a diagram showing a third example of calculating the amount of power consumption by power type by the network server device 60. In the example of FIG. 5, in addition to the power consumption amount of the moving body 40, the power generation amount is also obtained. In this case, the generated power of the moving body 40 may be treated as green power or non-green power. For example, the calculation unit 65 may treat the regenerative power as green power and the power generated using fossil fuels as non-green power.

[0057] In the example of FIG. 5, when the moving body 40 departs from the moving body owner facility 10, the in-vehicle battery 42 stores 5 kilowatt-hours (kWh) of green power and also stores 5 kilowatt-hours of non-green power, for a total of 10 kilowatt-hours of stored power. Also, the in-vehicle battery 42 is charged with 10 kilowatt-hours of non-green power at the power supply facility 20.

[0058] Also, in the example of FIG. 5, the power consumption amount of the moving body 40 before arriving at the power supply facility 20 is 7 kilowatt-hours, and the power generation amount is 2 kilowatt-hours. The power consumption amount of the moving body 40 after departing from the power supply facility 20 is 7 kilowatt-hours, and the power generation amount is 2 kilowatt-hours. FIG. 5 shows an example in which the calculation unit 65 treats the generated power of the moving body 40 as non-green power.

[0059] In the example of FIG. 5, for the power consumption amount of 7 kilowatt-hours of the moving body 40 before arriving at the power supply facility 20, the calculation unit 65 assumes that 5 kilowatt-hours of non-green power and 2 kilowatt-hours of generated non-green power are preferentially consumed. Thereby, the calculation unit 65 calculates the stored power amount of the in-vehicle battery 42 of the moving body 40 when arriving at the power supply facility 20 as 5 kilowatt-hours of green power amount and 0 kilowatt-hours of non-green power amount.

[0060] Adding the 10 kilowatt-hours of non-green power supplied at the power supply facility 20 to this, the calculation unit 65 calculates the stored power amount of the in-vehicle battery 42 of the moving body 40 when departing from the power supply facility 20 as 5 kilowatt-hours of green power amount, 10 kilowatt-hours of non-green power amount, and a total of 15 kilowatt-hours.

[0061] Then, the calculation unit 65 assumes that non-green power is preferentially consumed for the power consumption of 7 kilowatt-hours of the mobile body 40 after departing from the power supply facility 20. The calculation unit 65 subtracts the power consumption of 7 kilowatt-hours from the sum of the non-green power storage amount of 10 kilowatt-hours in the in-vehicle battery 42 of the mobile body 40 at the time of departure from the power supply facility 20 and the generated power of 2 kilowatt-hours, and calculates the non-green power storage amount in the in-vehicle battery 42 of the mobile body 40 when arriving at the operator facility 30 as 5 kilowatt-hours. Further, the calculation unit 65 calculates the green power storage amount in the in-vehicle battery 42 of the mobile body 40 when arriving at the operator facility 30 to be the same as 5 kilowatt-hours at the time of departure from the power supply facility 20, and calculates the total power amount of green power and non-green power to be 10 kilowatt-hours.

[0062] In the example of FIG. 5, the calculation unit 65 can reflect the generated power amount of the mobile body 40 in the calculation of the power amount of each type of power in the in-vehicle battery 42 of the mobile body 40, and in this regard, the power amount can be calculated with higher accuracy.

[0063] FIG. 6 is a diagram showing a fourth example of the calculation of the power amount of each type of power by the network server device 60. The example of FIG. 6 is different from the case of FIG. 5 in that the calculation unit 65 treats the generated power of the mobile body 40 as green power. Otherwise, the example of FIG. 6 is the same as the case of FIG. 5. Before the mobile body 40 arrives at the power supply facility 20, the calculation unit 65 assumes that 5 kilowatt-hours of non-green power is preferentially consumed, and 2 kilowatt-hours of the shortage is treated as consumed by green power. As a result, the calculation unit 65 calculates the stored power amount in the in-vehicle battery 42 of the mobile body 40 at the time of departure from the power supply facility 20 as 5 kilowatt-hours of green power amount, 10 kilowatt-hours of non-green power amount, and a total of 15 kilowatt-hours.

[0064] On the other hand, after the mobile body 40 departs from the power supply facility 20, it is assumed that all 7 kilowatt-hours of the power consumption of the mobile body 40 is consumed from non-green power. Then, the calculation unit 65 treats the generated power amount of 2 kilowatt-hours of the mobile body 40 as being charged into the in-vehicle battery 42 as green power amount.

[0065] As a result, the calculation unit 65 calculates the amount of stored power in the in-vehicle battery 42 of the mobile body 40 when the mobile body 40 arrives at the operator's facility 30 as 7 kilowatt-hours of green power, 5 kilowatt-hours of non-green power, and a total of 10 kilowatt-hours. Also in the example of FIG. 6, the calculation unit 65 can reflect the power generation amount of the mobile body 40 in calculating the amount of power of each type of power in the in-vehicle battery 42 of the mobile body 40, and in this regard, the amount of power can be calculated with higher accuracy.

[0066] As described above, the mobile body 40 may include a sensor that measures the amount of charged power of the in-vehicle battery 42 and a sensor that measures the amount of discharged power of the in-vehicle battery 42. FIG. 7 is a schematic configuration diagram showing another configuration example of the mobile body 40. In the configuration shown in FIG. 7, the mobile body 40 includes a communication slave unit 41, an in-vehicle battery 42, a movement control unit 43, a charge amount sensor 44, and a discharge amount sensor 45. The mobile body 40 shown in FIG. 7 is different from the case of FIG. 1 in that it includes a charge amount sensor 44 and a discharge amount sensor 45. In other respects, the mobile body 40 shown in FIG. 7 is the same as the case of FIG. 1.

[0067] The charge amount sensor 44 measures the charge amount of the in-vehicle battery 42. For example, the charge amount sensor 44 may measure the input current to the in-vehicle battery 42, multiply the voltage, calculate the charging power, and obtain the amount of charged power by calculating the time integral of the charging power. The discharge amount sensor 45 measures the discharge amount of the in-vehicle battery 42. For example, the discharge amount sensor 45 may measure the output current from the in-vehicle battery 42, multiply the voltage, calculate the discharge power, and obtain the amount of discharged power by calculating the time integral of the discharge power.

[0068] By the mobile body 40 including the charge amount sensor 44 and the discharge amount sensor 45, the amount of charged power and the amount of discharged power of the in-vehicle battery 42 can be grasped more accurately. As a result, the amount of stored power in the in-vehicle battery 42 can also be calculated more accurately.

[0069] FIG. 8 is a first diagram showing an example of the processing of the power system 1 when the owner-side charger 13 charges the mobile body 40 with green energy. (Step S111) The owner-side communication master unit 11 requests communication with the communication slave unit 41, and the owner-side communication master unit 11 and the communication slave unit 41 are communicatively connected.

[0070] (Step S112) The communication slave unit 41 requests the in-vehicle built-in battery 42 to prepare for charging or discharging. The timing for the in-vehicle built-in battery 42 to charge or discharge is not limited to a specific one. For example, the in-vehicle built-in battery 42 may be configured to charge or discharge in response to a user operation. Alternatively, the in-vehicle built-in battery 42 may be configured to charge or discharge in response to a request from an energy management system such as a HEMS (Home Energy Management System).

[0071] (Step S113) The in-vehicle built-in battery 42 notifies the communication slave unit 41 of the completion of charging preparation in response to the request for charging or discharging preparation in Step S112. The communication slave unit 41 transfers the charging preparation completion notification from the in-vehicle built-in battery 42 to the solar power generator 14 via the owner-side communication master unit 11.

[0072] (Step S114) The solar power generator 14 responds to the owner-side communication master unit 11 that it is capable of power supply in response to the charging preparation completion notification in Step S113. Further, the solar power generator 14 notifies the owner-side communication master unit 11 of the solar power generator ID, which is the identification information of the solar power generator 14 itself. For example, the solar power generator 14 may transmit a power supply capable response signal including the solar power generator ID of the solar power generator 14 itself to the owner-side communication master unit 11.

[0073] (Step S115) Upon receiving the power supply available response from the solar power generator 14, the owner-side communication master unit 11 requests the start of charging for the in-vehicle built-in battery 42. Specifically, the owner-side communication master unit 11 transmits a charging start request and the solar power generator ID of the solar power generator 14 to the communication slave unit 41. The owner-side communication master unit 11 may transmit a charging start request signal including the solar power generator ID of the solar power generator 14 to the communication slave unit 41.

[0074] (Step S116) In response to the charging start request from the owner-side communication master unit 11, the communication slave unit 41 requests to start charging the in-vehicle built-in battery 42. The communication slave unit 41 may also transmit a charging start request signal to the in-vehicle built-in battery 42.

[0075] (Step S117) In response to the charging start request from the communication slave unit 41, the in-vehicle built-in battery 42 notifies the communication slave unit 41 that it has completed the transition to the charging standby state and the chargeable capacity. The in-vehicle built-in battery 42 may also transmit a charging standby completion signal including the information on the chargeable capacity to the communication slave unit 41.

[0076] (Step S118) Upon receiving the notification of the completion of the transition to the charging standby state of the in-vehicle built-in battery 42, the communication slave unit 41 responds to the owner-side communication master unit 11 with the start of charging for the charging start request and notifies the solar power generator ID of the solar power generator 14. The communication slave unit 41 may also transmit a charging start response including the solar power generator ID of the solar power generator 14 to the owner-side communication master unit 11.

[0077] (Step S119) Prepare for charging from the owner-side charger 13 to the moving body 40 and operate the charging lever of the owner-side charger 13. For example, the user may connect the charging connector of the owner-side charger 13 to the charging port of the moving body 40 and operate the charging lever.

[0078] (Step S120) Upon receiving the charging start response from the communication slave unit 41, the owner-side communication master unit 11 requests the owner-side smart meter 12 to set the power line route. Here, the owner-side communication master unit 11 requests the owner-side smart meter 12 to set the power supply path from the solar generator 14 to the in-vehicle battery 42.

[0079] (Step S121) In response to the request from the owner-side communication master unit 11, the owner-side smart meter 12 sets the power supply path from the solar generator 14 to the in-vehicle battery 42. (Step S122) The owner-side smart meter 12 notifies the owner-side communication master unit 11 that the setting of the power line route has been completed.

[0080] (Step S123) The owner-side communication master unit 11 requests the owner-side charger 13 to start charging. (Step S124) In response to the charging start request from the owner-side communication master unit 11, the owner-side charger 13 responds that it can start charging. After the process in FIG. 8, the process of the power system 1 transitions to the process in FIG. 9.

[0081] FIG. 9 is a second diagram showing an example of the process of the power system 1 when the owner-side charger 13 charges the mobile body 40 with green energy. (Step S131) In response to the response from the owner-side charger 13 in step S124 of FIG. 8 indicating that charging can start, the owner-side communication master unit 11 notifies the owner-side smart meter 12 and the solar generator 14 of the charging start and the solar generator ID of the solar generator 14.

[0082] (Step S132) Upon receiving the charging start notification from the owner-side communication master device 11, the owner-side smart meter 12 starts meter reading of the amount of green power. The owner-side smart meter 12 may distinguish between green power and non-green power for meter reading based on whether there is a notification of the solar power generator ID from the owner-side communication master device 11. Alternatively, the owner-side smart meter 12 may perform meter reading without distinguishing between green power and non-green power, and a device other than the owner-side smart meter 12, such as the network server device 60 or the owner-side communication master device 11, may distinguish between green power and non-green power. The amount of green power is also referred to as the green power amount. The amount of non-green power is also referred to as the non-green power amount.

[0083] (Step S133) The solar power generator 14 starts transmitting green power to the in-vehicle built-in battery 42. (Step S134) When the communication between the owner-side communication master device 11 and the communication slave device 41 has ended, for the process of ending the charging of the in-vehicle built-in battery 42, the owner-side communication master device 11 requests communication with the communication slave device 41, and the owner-side communication master device 11 and the communication slave device 41 are communicatively connected. Also, the owner-side communication master device 11 notifies the communication slave device 41 of the solar power generator ID of the solar power generator 14.

[0084] (Step S135) When the charge amount of the in-vehicle built-in battery 42 reaches a planned charge amount such as full charge, the in-vehicle built-in battery 42 requests the communication slave device 41 to end the charging. (Step S136) The communication slave device 41 transfers the charging end request from the in-vehicle built-in battery 42 to the owner-side communication master device 11. At the same time, the communication slave device 41 notifies the owner-side communication master device 11 of the solar power generator ID of the solar power generator 14. The communication slave device 41 may transmit a charging end request signal including the solar power generator ID of the solar power generator 14 to the owner-side communication master device 11.

[0085] (Step S137) Complete the charging from the owner-side charger 13 to the moving body 40, and operate the charging lever of the owner-side charger 13. For example, the user may return the charging lever of the owner-side charger 13 and remove the charging connector of the owner-side charger 13 from the charging port of the moving body 40.

[0086] (Step S138) The owner-side communication master unit 11 transfers the charging completion request from the communication slave unit 41 and the solar generator ID of the solar power generator 14 to the owner-side smart meter 12 and the solar power generator 14. (Step S139) The solar power generator 14 stops transmitting green power in response to the charging completion request from the owner-side communication master unit 11.

[0087] (Step S140) The owner-side smart meter 12 stops measuring the green power amount in response to the charging completion request from the owner-side communication master unit 11 and releases the power line route. (Step S141) The owner-side smart meter 12 notifies the owner-side communication master unit 11 of the green power amount measurement value and the solar generator ID of the solar power generator 14. The owner-side communication master unit 11 transfers the green power amount measurement value and the solar generator ID of the solar power generator 14 to the communication slave unit 41. (Step S142) The communication slave unit 41 stores the notified green power amount in association with the charging time (date and time) information as the charging power amount to the in-vehicle battery 42.

[0088] (Step S143) The owner-side communication master unit 11 notifies the network server device 60 of the green power amount measurement value, the solar generator ID of the solar power generator 14, and the power transmission direction. Here, the power transmission direction is the charging of the in-vehicle battery 42.

[0089] (Step S144) The network server device 60 stores the information notified from the owner-side communication master unit 11. For example, the network server device 60 stores the green power consumption meter value, the solar power generator ID of the solar power generator 14, and the power transmission direction in association with the charging time information. The network server device 60 may use the reception time of the notification from the owner-side communication master unit 11 as the charging time. Alternatively, the network server device 60 may obtain the charging time information from the owner-side communication master unit 11.

[0090] When a person who wishes to purchase green power purchases green power from the mobile body 40, by obtaining the information stored in the communication slave unit 41 and making an inquiry to the network server device 60, it is possible to confirm that the mobile body built-in battery 42 has been charged with green power. In addition, the charging power amounts stored in the communication slave unit 41 and the network server device 60 can be used to calculate the amount of green power among the stored power amounts of the mobile body built-in battery 42.

[0091] In addition to the green power consumption meter value, the solar power generator ID of the solar power generator 14, the power transmission direction, and the charging time information, the network server device 60 may store the identification information of the mobile body 40, the identification information of the mobile body built-in battery 42, the stored power amount of the mobile body built-in battery 42, any one of the breakdowns of the stored power amount of the mobile body built-in battery 42 into green power and non-green power, or a combination of these. After step S144, the power system 1 ends the process when the owner-side charger 13 charges the mobile body 40 with green energy.

[0092] FIG. 10 is a first diagram showing an example of the process of the power system 1 when the owner-side charger 13 charges the mobile body 40 with non-green energy. Steps S211 to S213 are the same as steps S111 to S113 in FIG. 8.

[0093] (Step S214) The solar power generator 14 responds to the charging preparation completion notice in step S213 by informing the owner-side communication master device 11 that power supply is impossible. Further, the solar power generator 14 notifies the owner-side communication master device 11 of the solar power generator ID, which is its own identification information. For example, the solar power generator 14 may transmit a power supply impossible response signal including its own solar power generator ID to the owner-side communication master device 11.

[0094] (Step S215) Upon receiving the power supply impossible response from the solar power generator 14, the owner-side communication master device 11 notifies the owner-side smart meter 12 and the power company facility 70 to start charging. Note that the power company facility 70 may be not only the facilities of the power company but also the facilities of power generation businesses other than the power company that have entered into a power supply contract and are connected by a power line (for example, the power grid 90). Thereby, the owner-side communication master device 11 attempts to charge the in-vehicle built-in battery 42 using commercial power.

[0095] (Step S216) In response to the charging start notice from the owner-side communication master device 11, the power company facility 70 notifies the owner-side communication master device 11 that it cancels the charging start and also provides its own identification information, which is the power company ID. The power company ID here is also referred to as the power company ID of the power company facility 70.

[0096] (Step S217) Upon receiving the charging start approval notice from the power company facility 70, the owner-side communication master device 11 requests the communication slave device 41 to start charging and notifies the power company ID of the power company facility 70. Steps S218 and S219 are the same as steps S116 and S117 in FIG. 8.

[0097] (Step S220) Upon receiving the notification of the completion of the transition to the charging standby state of the in-vehicle battery 42, the communication slave unit 41 responds to the charging start request to the owner-side communication master unit 11 and notifies the power company ID of the power company facility 70. The communication slave unit 41 may transmit a charging start response including the power company ID of the power company facility 70 to the owner-side communication master unit 11.

[0098] Step S221 is the same as step S119 in FIG. 8. Steps S222 and S223 are the same as steps S123 and S124 in FIG. 8. After the process of FIG. 10, the process of the power system 1 transitions to the process of FIG. 11.

[0099] FIG. 11 is a second diagram showing an example of the process of the power system 1 when the owner-side charger 13 charges the mobile body 40 with non-green energy. (Step S231) The owner-side communication master unit 11 instructs the owner-side smart meter 12 to start metering non-green power.

[0100] (Step S232) The owner-side smart meter 12 sets a power line route in response to the instruction from the owner-side communication master unit 11 and starts metering the amount of non-green power. Here, the owner-side smart meter 12 sets a power supply path from the commercial power supplied from the power company facility 70 via the power grid 90 to the in-vehicle battery 42. (Step S233) The owner-side smart meter 12 notifies the owner-side communication master unit 11 that the setting of the power line route has been completed.

[0101] (Step S234) The commercial power supplied by the power company facility 70 is supplied to the in-vehicle battery 42. (Step S235) When the communication between the owner-side communication master unit 11 and the communication slave unit 41 has ended, for the process of ending the charging of the in-vehicle built-in battery 42, the owner-side communication master unit 11 requests communication with the communication slave unit 41, and the owner-side communication master unit 11 and the communication slave unit 41 are communicatively connected.

[0102] (Step S236) When the charge amount of the in-vehicle built-in battery 42 reaches a planned charge amount such as full charge, the in-vehicle built-in battery 42 requests the communication slave unit 41 to end charging. The communication slave unit 41 transfers the charging end request from the in-vehicle built-in battery 42 to the owner-side communication master unit 11. Step S237 is the same as step S137 in FIG. 9.

[0103] (Step S238) The owner-side communication master unit 11 transfers the charging end request from the communication slave unit 41 to the owner-side smart meter 12 and the network server device 60. In addition, the owner-side communication master unit 11 notifies the owner-side smart meter 12 and the network server device 60 of the solar power generator ID of the solar power generator 14 and the power company ID of the power company facility 70. The owner-side communication master unit 11 may transmit a charging end request signal including the solar power generator ID of the solar power generator 14 and the power company ID of the power company facility 70 to the owner-side smart meter 12 and the facilities of the power grid 90.

[0104] (Step S239) The owner-side smart meter 12 receives the charging end request from the owner-side communication master unit 11, releases the setting of the power line route, and reads the non-green power amount meter value. (Step S240) The owner-side smart meter 12 notifies the owner-side communication master unit 11 of the non-green power amount meter value. The owner-side communication master unit 11 transfers the non-green power amount meter value to the communication slave unit 41.

[0105] (Step S241) The communication slave unit 41 stores the notified non-green power amount as the charging power amount to the in-vehicle built-in battery 42, in association with the charging time information. (Step S242) The communication slave unit 41 instructs the mobile control unit 43 to move the mobile body 40 if it is possible to do so.

[0106] (Step S243) The owner-side communication master unit 11 notifies the network server device 60 of the non-green power consumption meter value, the power company ID of the power company facility 70, and the power transmission direction. Here, the power transmission direction is the charging of the in-vehicle battery 42.

[0107] (Step S244) The network server device 60 stores the information notified from the owner-side communication master unit 11. For example, the network server device 60 stores the non-green power consumption meter value, the solar power generator ID of the solar power generator 14, and the power transmission direction in association with the charging time information. The network server device 60 may use the reception time of the notification from the owner-side communication master unit 11 as the charging time. Alternatively, the network server device 60 may obtain the charging time information from the owner-side communication master unit 11.

[0108] The information stored by the network server device 60 can be used to confirm the charge and discharge information of the in-vehicle battery 42 stored by the communication slave unit 41. For example, using the information stored by the network server device 60, it is possible to confirm whether the power charged in the in-vehicle battery 42 is green power or non-green power. In addition, the information stored by the communication slave unit 41 and the network server device 60 can be used to calculate the breakdown of the green power amount and the non-green power amount in the stored power amount of the in-vehicle battery 42.

[0109] The network server device 60 may store, in addition to the non-green power consumption meter value, the power company ID of the power company facility 70, the power transmission direction, and the charging time information, any one of the identification information of the mobile body 40, the identification information of the in-vehicle battery 42, the stored power amount of the in-vehicle battery 42, the breakdown of the green power and non-green power in the stored power amount of the in-vehicle battery 42, or a combination of these. After step S244, the power system 1 ends the process when the owner-side charger 13 charges the mobile body 40 with green energy.

[0110] FIG. 12 is a first diagram showing an example of the process of the power system 1 when the power supply-side charger 23 charges the mobile body 40 with non-green energy. (Step S311) The power supply-side communication master unit 21 requests communication with the communication slave unit 41, and the power supply-side communication master unit 21 and the communication slave unit 41 are communicatively connected.

[0111] (Step S312) The communication slave unit 41 requests communication with the smartphone 50, and the communication slave unit 41 and the smartphone 50 are communicatively connected. (Step S313) The smartphone 50 responds to the communication slave unit 41 to charge the in-vehicle battery 42. For example, the smartphone 50 notifies the communication slave unit 41 of the intention to charge the in-vehicle battery 42 and the amount of charging power according to a user operation. Instead of the smartphone 50, the in-vehicle battery 42 or the vehicle control unit 43 may notify the communication slave unit 41 of the intention to charge and the amount of charging power.

[0112] (Step S314) The communication slave unit 41 transfers the response from the smartphone 50 to charge the in-vehicle battery 42 to the power supply-side communication master unit 21. At the same time, the communication slave unit 41 notifies the power supply-side communication master unit 21 of the solar power generator ID of the solar power generator 14. For example, the communication slave unit 41 may store the solar power generator ID of the solar power generator 14 when receiving green power from the solar power generator 14 at the mobile body owner's facility 10 and notify the power supply-side communication master unit 21 when receiving power at the power supply facility 20. The solar power generator ID of the solar power generator 14 can be used as a search key when querying the network server device 60 for the charging information of the in-vehicle battery 42.

[0113] (Step S315) The communication slave unit 41 inquires of the in-vehicle battery 42 about the battery capacity (the amount of electric power at full charge) of the in-vehicle battery 42. (Step S316) The in-vehicle battery 42 answers with the battery capacity.

[0114] (Step S317) In response to the response from the communication slave unit 41 to perform charging, the power supply side communication master unit 21 transmits an instruction to start metering to the power supply side smart meter 22 and the network server device 60. At the same time, the power supply side communication master unit 21 notifies the power supply side smart meter 22 and the network server device 60 of the solar power generator ID of the solar power generator 14.

[0115] (Step S318) The power supply side communication master unit 21 notifies the power supply side charger / discharger 23 of the start of charging notification and the solar power generator ID of the solar power generator 14. (Step S319) Prepare for charging from the power supply side charger / discharger 23 to the moving body 40 and operate the charging lever of the power supply side charger / discharger 23. For example, the user may connect the charging connector of the power supply side charger / discharger 23 to the charging port of the moving body 40 and operate the charging lever.

[0116] (Step S320) The power supply side smart meter 22 sets the power line route and starts metering non-green power. Here, the power supply side smart meter 22 sets the power line route in response to the metering start instruction from the power supply side communication master unit 21 and starts metering the amount of non-green power. Here, the power supply side smart meter 22 sets the power supply route from the commercial power supplied from the power company facility 70 via the power grid 90 to the in-vehicle battery 42.

[0117] (Step S321) The commercial power supplied by the power company facility 70 is charged into the in-vehicle battery 42. After the process of FIG. 12, the process of the power system 1 transitions to the process of FIG. 13.

[0118] FIG. 13 is a second diagram showing an example of the processing of the power system 1 when the substation-side charger 23 charges the moving body 40 with non-green energy. (Step S331) Complete the charging from the substation-side charger 23 to the moving body 40, and operate the charging lever of the substation-side charger 23. For example, the user may return the charging lever of the substation-side charger 23 and remove the charging connector of the substation-side charger 23 from the charging port of the moving body 40.

[0119] (Step S332) Upon receiving the completion of charging in Step S331, the substation-side charger 23 notifies the substation-side communication master unit 21 of the completion of charging and the solar generator ID of the solar power generator 14. (Step S333) The substation-side communication master unit 21 notifies the substation-side smart meter 22 and the network server device 60 of the completion of charging from the substation-side charger 23 and the notification of the solar generator ID of the solar power generator 14.

[0120] (Step S334) In response to the completion-of-charging notification from the substation-side communication master unit 21, the substation-side smart meter 22 releases the power line route and reads the meter reading value of the non-green power amount. (Step S335) The substation-side smart meter 22 notifies the substation-side communication master unit 21 of the read meter reading value.

[0121] (Step S336) The substation-side communication master unit 21 notifies the communication slave unit 41 of the completion of charging, the non-green power amount meter reading value, and the solar generator ID of the solar power generator 14. (Step S337) The communication slave unit 41 stores the non-green power amount for this charging as the charging power amount to the in-vehicle battery 42, associated with the charging time information. After the processing of FIG. 13, the processing of the power system 1 transitions to the processing of FIG. 14.

[0122] FIG. 14 is a third diagram showing an example of the processing of the power system 1 when the substation-side charger 23 charges the moving body 40 with non-green energy. (Step S341) The communication slave unit 41 transmits a read request for the total capacity of the in-vehicle battery 42 and the amount of power generated by the moving body 40 itself to the smartphone 50 and the in-vehicle battery 42.

[0123] (Step S342) The in-vehicle battery 42 reads and responds with the total capacity of the in-vehicle battery 42 (the amount of power at full charge) and the amount of power generated by the moving body 40. For example, the in-vehicle battery 42 periodically measures and stores the amount of power at full charge. In addition, the moving body 40 is equipped with a sensor for measuring the amount of power generated by the moving body 40 itself, and the in-vehicle battery 42 stores the measured value of the amount of power generated by the moving body 40 by the sensor. The moving body 40 may be equipped with a generator, and the sensor may measure the amount of power generated by the generator. Alternatively, the regenerative energy when the moving body 40 stops may be measured by the sensor.

[0124] (Step S343) The communication slave unit 41 stores the total capacity of the in-vehicle battery 42 and the amount of power generated by the moving body 40 in association with the time. (Step S344) The substation-side communication master unit 21 requests the communication slave unit 41 to notify the amount of power. At the same time, the substation-side communication master unit 21 notifies the communication slave unit 41 of the solar power generator ID of the solar power generator 14.

[0125] (Step S345) The communication slave unit 41 responds to the substation-side communication master unit 21 with the solar power generator ID of the solar power generator 14, the amount of green power, the amount of non-green power, and the amount of power generated by the moving body 40. The communication slave device 41 may notify the power supply station side communication master device 21 of charge and discharge records such as the amount of green power charged and stored in step S142 of FIG. 9, the amount of non-green power charged and stored in step S241 of FIG. 11, and the amount of non-green power charged and stored in step S337 of FIG. 13. Alternatively, the communication slave device 41 may calculate the remaining charge amount obtained by subtracting the total amount of discharged power from the total amount of charged power for each of green power and non-green power based on the charge and discharge records, and notify the power supply station side communication master device 21 thereof.

[0126] (Step S346) The network server device 60 requests the power supply station side communication master device 21 to notify the power amount. At the same time, the network server device 60 notifies the power supply station side communication master device 21 of the solar power generator ID of the solar power generator 14.

[0127] (Step S347) The power supply station side communication master device 21 responds to the network server device 60 with the solar power generator ID of the solar power generator 14, the amount of green power, the amount of non-green power, and the generated power amount of the moving body 40. The power supply station side communication master device 21 may store the information obtained in step S345, and when receiving a request from the network server device 60, read out the stored information and answer the network server device 60.

[0128] (Step S348) The network server device 60 notifies the power supply station side communication master device 21 of the solar power generator ID of the solar power generator 14 and that the moving body 40 may move.

[0129] (Step S349) The power supply station side communication master device 21 transfers the solar power generator ID of the solar power generator 14 and the notification that the moving body 40 may move to the communication slave device 41 and the smartphone 50.

[0130] (Step S350) The network server device 60 stores the information notified from the power supply station side communication master unit 21. For example, the network server device 60 stores the non-green power quantity metering value, the solar power generator ID of the solar power generator 14, and the power transmission direction in association with the charging time information. The network server device 60 may use the reception time of the notification from the power supply station side communication master unit 21 as the charging time. Alternatively, the network server device 60 may acquire the charging time information from the power supply station side communication master unit 21.

[0131] The information stored by the network server device 60 can be used to confirm the charge and discharge information of the in-vehicle built-in battery 42 stored by the communication slave unit 41. For example, using the information stored by the network server device 60, it is possible to confirm whether the power charged in the in-vehicle built-in battery 42 is green power or non-green power. In addition, the information stored by the communication slave unit 41 and the network server device 60 can be used to calculate the breakdown of the green power quantity and the non-green power quantity in the stored power quantity of the in-vehicle built-in battery 42.

[0132] In addition to the non-green power quantity metering value, the power company ID of the power company facility 70, the power transmission direction, and the charging time information, the network server device 60 may store the identification information of the moving body 40, the identification information of the in-vehicle built-in battery 42, the stored power quantity of the in-vehicle built-in battery 42, any one of the breakdowns of the green power and the non-green power in the stored power quantity of the in-vehicle built-in battery 42, or a combination of these. After step S350, the power system 1 ends the process when the power supply station side charger 23 charges the moving body 40 with non-green energy.

[0133] FIG. 15 is a first diagram showing an example of the process of the power system 1 when the moving body 40 discharges green energy to the operator side charger 33. (Step S411) The operator side communication master unit 31 requests communication with the communication slave unit 41, and the operator side communication master unit 31 and the communication slave unit 41 are communicatively connected.

[0134] (Step S412) The communication slave unit 41 requests the in-vehicle built-in battery 42 of the moving body to prepare for charging or discharging. (Step S413) In response to the request for preparation for charging or discharging in Step S412, the in-vehicle built-in battery 42 of the moving body notifies the communication slave unit 41 that the discharge preparation is complete.

[0135] (Step S414) The communication slave unit 41 notifies the business operator side communication master unit 31 of the completion of discharge preparation and the discharge amount. The communication slave unit 41 may transmit a discharge preparation completion signal including the discharge amount information to the business operator side communication master unit 31.

[0136] (Step S415) The business operator side communication master unit 31 notifies the business operator side battery 34 and the network server device 60 of the completion of discharge preparation and the solar power generator ID of the solar power generator 14. The business operator side communication master unit 31 may transmit a discharge preparation completion signal including the solar power generator ID of the solar power generator 14 to the business operator side battery 34 and the network server device 60.

[0137] (Step S416) The network server device 60 confirms the validity of the solar power generator ID of the solar power generator 14 with the power company facility 70. (Step S417) The power company facility 70 responds to the network server device 60 regarding the validity of the solar power generator ID of the solar power generator 14. In the example of FIG. 15, it is answering the network server device 60 that the solar power generator ID of the solar power generator 14 is valid.

[0138] (Step S418) The network server device 60 confirms the power amount of the in-vehicle built-in battery 42 in the moving body owner facility 10. For example, the network server device 60 uses the solar power generator ID of the solar power generator 14 as a search key to obtain the amount of green power a0 charged in the in-vehicle built-in battery 42 in the moving body owner facility 10 and the amount of non-green power b0と Read out the total capacity X of the in-vehicle battery 42 and the charging date and time t0. Then, the network server device 60 checks that X≥a0 + b0.

[0139] That is, based on the history information of the power amount of the in-vehicle battery 42, the network server device 60 calculates the green power amount a0 and the non-green power amount b0 of the in-vehicle battery 42 when the moving body 40 is located at the moving body owner's facility 10. Then, the network server device 60 checks that the sum of the green power amount a0 and the non-green power amount b0 is less than or equal to the total capacity X of the in-vehicle battery 42 and that charging is possible.

[0140] (Step S419) The network server device 60 checks the power amount of the in-vehicle battery 42 after movement from the moving body owner's facility 10. For example, the network server device 60 uses the solar power generator ID of the solar power generator 14 as a search key to read out the green power amount a1, the non-green power amount b1, the total capacity X1, and the charging time t1 of the in-vehicle battery 42 charged at the power supply facility after the time t when the moving body 40 departs from the moving body owner's facility 10. In the case of the example in FIG. 1, the network server device 60 reads out the green power amount a1, the non-green power amount b1 charged to the in-vehicle battery 42 at the power supply facility 20, the total capacity X1 of the in-vehicle battery 42 at that time, and the charging time t1 which is the time at that time. Then, the network server device 60 checks that X≥X1. That is, it is considered that the total capacity of the in-vehicle battery 42 decreases over time, and the network server device 60 checks this point. If X≤X1, the accuracy of the information on the total capacity of the in-vehicle battery 42 is considered to be relatively low.

[0141] (Step S420) The network server device 60 notifies the in-vehicle built-in battery 42 of the solar power generator ID of the solar power generator 14 via the operator-side communication master unit 31 and the communication slave unit 41, and requests the state information of the in-vehicle built-in battery 42. Specifically, the network server device 60 requests the in-vehicle built-in battery 42 for the stored power amount Y of the in-vehicle built-in battery 42 at the current time t2, the total capacity X2, and the self-generated power amount s by the moving body 40.

[0142] (Step S421) In response to the request from the network server device 60, the in-vehicle built-in battery 42 responds with the state information of the in-vehicle built-in battery 42. For example, as described above, the in-vehicle built-in battery 42 periodically measures and stores the power amount at full charge. Further, the moving body 40 is provided with a sensor for measuring its own generated power amount, and the in-vehicle built-in battery 42 stores the measured value of the generated power amount of the moving body 40 by the sensor. The moving body 40 may be provided with a generator, and the sensor may measure the generated power amount of the generator. Alternatively, the regenerative energy when the moving body 40 stops may be measured by the sensor.

[0143] Regarding the stored power amount Y of the in-vehicle built-in battery 42, the moving body 40 may be provided with a charge amount sensor 44 and a discharge amount sensor 45 to measure the charge power amount to the in-vehicle built-in battery 42 and the discharge power amount from the in-vehicle built-in battery 42, and calculate the stored power amount based on the charge power amount and the discharge power amount.

[0144] (Step S422) The network server device 60 confirms the total capacity of the in-vehicle built-in battery 42. Specifically, in addition to X≧X1 confirmed in step S419, the network server device 60 confirms X1≧X2 and that the total capacity of the in-vehicle built-in battery 42 is decreasing over time. After the processing of FIG. 15, the processing of the power system 1 transitions to the processing of FIG. 16.

[0145] FIG. 16 is a second diagram showing an example of the processing of the power system 1 when the mobile body 40 discharges green energy to the operator-side charger / discharger 33. (Step S431) The network server device 60 determines the amount of green power discharged from the in-vehicle battery 42 to the operator-side battery 34.

[0146] (Step S432) The network server device 60 notifies the operator-side master communication device 31 of the solar generator ID of the solar power generator 14 and instructs the amount of green power discharged from the in-vehicle battery 42. The operator-side master communication device 31 transfers the solar generator ID of the solar power generator 14 and the instruction of the amount of green power discharged to the communication slave device 41.

[0147] (Step S433) The network server device 60 notifies the power company facility 70 of the solar generator ID of the solar power generator 14 and pre-notifies the amount of green power discharged. (Step S434) The operator-side master communication device 31 transfers the notification of the solar generator ID of the solar power generator 14 and the instruction of the amount of green power discharged to the operator-side battery 34.

[0148] (Step S435) The operator-side battery 34 notifies the operator-side master communication device 31 of the solar generator ID of the solar power generator 14 and responds to the instruction of the amount of green power discharged. Here, the operator-side battery 34 determines that it can accept the instructed amount of power and notifies the operator-side master communication device 31 that it can accept it.

[0149] (Step S436) Upon receiving the response from the operator-side battery 34, the operator-side master communication device 31 notifies the operator-side server device 35 of the solar generator ID of the solar power generator 14 and requests the start of discharge. The operator-side master communication device 31 may transmit a discharge start request signal including the solar generator ID of the solar power generator 14 to the operator-side server device 35.

[0150] (Step S437) The operator-side server device 35 receives a discharge application for green power indicating the solar power generator ID. (Step S438) The operator-side server device 35 confirms the availability of responding to the discharge of the applied green power (the availability of charging the green power into the operator-side storage battery 34) by indicating the solar power generator ID (the solar power generator ID of the solar power generator 14 in the example of FIG. 16) to the power company facility 70.

[0151] (Step S439) The power company facility 70 notifies the operator-side server device 35 of the response regarding the availability of responding to the discharge of green power. Specifically, the power company facility 70 notifies the operator-side server device 35 of the solar power generator ID (here, the solar power generator ID of the solar power generator 14) and answers that it is possible to respond to the discharge of green power, and notifies the amount of green power to be discharged from the in-vehicle storage battery 42 to the operator-side storage battery 34. The power company facility 70 may transmit a response signal including the solar power generator ID and the information on the amount of green power to the operator-side server device 35. After the process of FIG. 16, the process of the power system 1 transitions to the process of FIG. 17.

[0152] FIG. 17 is a third diagram showing an example of the process of the power system 1 when the moving body 40 discharges green energy to the operator-side charger 33. (Step S451) The operator-side server device 35 confirms the validity of the applied amount of green power identified by the solar power generator ID. For example, the operator-side server device 35 may present the solar power generator ID to the network server device 60 and confirm whether the applied amount of charge for the green power identified by the solar power generator ID conforms to the power transaction.

[0153] (Step S452) The operator-side server device 35 notifies the operator-side communication master unit 31 of the solar power generator ID and the discharge power amount of the solar power generator 14, and instructs the start of green power charging. The operator-side server device 35 may transmit a green power charging start instruction signal including the solar power generator ID of the solar power generator 14 and the information on the discharge power amount to the operator-side communication master unit 31.

[0154] (Step S453) The operator-side communication master unit 31 transfers the notification of the solar power generator ID and the discharge power amount of the solar power generator 14 and the green power charging start instruction from the operator-side server device 35 to the operator-side storage battery 34.

[0155] (Step S454) In response to the green power charging start instruction from the operator-side communication master unit 31, the operator-side storage battery 34 notifies the storage battery ID of the operator-side storage battery 34, which is its own identification information, and responds that it can discharge, that is, it can be charged. The operator-side storage battery 34 may transmit a discharge-capable response signal including the storage battery ID of the operator-side storage battery 34 to the operator-side communication master unit 31.

[0156] (Step S455) The operator-side communication master unit 31 requests the start of discharge to the in-vehicle built-in battery 42 via the communication slave unit 41. (Step S456) The in-vehicle built-in battery 42 notifies the communication slave unit 41 that the discharge waiting is completed.

[0157] (Step S457) The communication slave unit 41 responds to the operator-side communication master unit 31 with the start of discharge. (Step S458) The operator-side communication master unit 31 requests the setting of the power line route from the operator-side smart meter 32. Here, the operator-side communication master unit 31 requests the operator-side smart meter 32 to set the power line path from the in-vehicle built-in battery 42 to the operator-side storage battery 34.

[0158] (Step S459) The operator-side smart meter 32 sets the power line route in response to a request for setting the power line route from the operator-side communication master unit 31. (Step S460) The operator-side smart meter 32 notifies the operator-side communication master unit 31 that the setting of the power line route has been completed. After the processing of FIG. 17, the processing of the power system 1 transitions to the processing of FIG. 18.

[0159] FIG. 18 is a fourth diagram showing an example of the processing of the power system 1 when the mobile body 40 discharges green energy to the operator-side charger / discharger 33.

[0160] (Step S471) The operator-side communication master unit 31 requests the start of discharge from the operator-side charger / discharger 33 and the communication slave unit 41. (Step S472) The operator-side communication master unit 31 answers that it can start discharging in response to a request for starting discharge from the operator-side charger / discharger 33.

[0161] (Step S473) Upon receiving a request for starting discharge from the operator-side charger / discharger 33, the communication slave unit 41 instructs the start of discharge to the in-vehicle battery 42. (Step S474) The in-vehicle battery 42 responds to the discharge instruction from the communication slave unit 41.

[0162] (Step S475) The communication slave unit 41 transfers the discharge instruction response from the in-vehicle battery 42 to the operator-side communication master unit 31 and also notifies the operator-side communication master unit 31 of the solar generator ID of the solar power generator 14. The communication slave unit 41 may transmit a discharge instruction response signal including the solar generator ID of the solar power generator 14 to the operator-side communication master unit 31.

[0163] (Step S476) The operator-side communication master unit 31 notifies the operator-side smart meter 32 of the start of discharging. Also, the operator-side communication master unit 31 notifies the operator-side smart meter 32 of the discharge amount. The operator-side communication master unit 31 may transmit a discharge start notification signal including information on the discharge amount to the operator-side smart meter 32.

[0164] (Step S477) The operator-side smart meter 32 starts the metering of green power. (Step S478) The in-vehicle built-in battery 42 starts discharging green power. The green power discharged by the in-vehicle built-in battery 42 reaches the operator-side battery 34 via the operator-side charger / discharger 33 and the operator-side smart meter 32, and the operator-side battery 34 is charged. After the process of FIG. 18, the process of the power system 1 transitions to the process of FIG. 19.

[0165] FIG. 19 is a fifth diagram showing an example of the process of the power system 1 when the moving body 40 discharges green energy to the operator-side charger / discharger 33.

[0166] (Step S481) When the discharge of green power from the in-vehicle built-in battery 42 reaches a predetermined amount of electricity, the operator-side smart meter 32 stops the metering of green power and releases the power line route.

[0167] (Step S482) The operator-side smart meter 32 notifies the operator-side charger / discharger 33 of the end of discharging via the operator-side communication master unit 31.

[0168] (Step S483) When the communication between the operator-side communication master unit 31 and the communication slave unit 41 has ended, for the process of ending the discharge of the in-vehicle built-in battery 42, the operator-side communication master unit 31 requests communication with the communication slave unit 41, and the operator-side communication master unit 31 and the communication slave unit 41 are communicatively connected. After the communication connection, the operator-side communication master unit 31 requests the in-vehicle built-in battery 42 to end the discharge via the communication slave unit 41.

[0169] (Step S484) The in-vehicle built-in battery 42 stops transmitting green power to the operator-side battery 34 in response to the discharge end request from the operator-side communication master unit 31. (Step S485) The operator-side communication master unit 31 requests the end of discharge by notifying the operator-side battery 34 of the solar power generator ID of the solar power generator 14 via the operator-side smart meter 32. The operator-side communication master unit 31 may transmit a discharge end request signal including the solar power generator ID of the solar power generator 14 to the operator-side smart meter 32 and the operator-side battery 34.

[0170] (Step S486) The operator-side battery 34 stops receiving green power from the in-vehicle built-in battery 42 upon receiving the discharge end request from the operator-side communication master unit 31. (Step S487) The operator-side smart meter 32 notifies the operator-side communication master unit 31 of the green power quantity meter reading value.

[0171] (Step S488) The operator-side communication master unit 31 notifies the network server device 60 of the green power quantity meter reading value, the solar power generator ID of the solar power generator 14, and the power transmission direction. Here, the power transmission direction is the discharge of the in-vehicle built-in battery 42.

[0172] (Step S489) The network server device 60 stores the information notified from the operator-side communication master unit 31. For example, the network server device 60 stores the green power quantity meter reading value, the solar power generator ID of the solar power generator 14, and the power transmission direction in association with the charging time information. The network server device 60 may use the reception time of the notification from the operator-side communication master unit 31 as the charging time. Alternatively, the network server device 60 may obtain the charging time information from the operator-side communication master unit 31.

[0173] The information stored in the network server device 60 can be used to check the charge and discharge information of the in-vehicle battery 42 stored in the communication slave device 41. For example, using the information stored in the network server device 60, it is possible to check whether the power charged in the in-vehicle battery 42 is green power or non-green power. In addition, the information stored in the communication slave device 41 and the network server device 60 can be used to calculate the breakdown of the green power amount and the non-green power amount in the stored power amount of the in-vehicle battery 42.

[0174] In addition to the non-green power amount meter value, the power company ID of the power company facility 70, the power transmission direction, and the charging time information, the network server device 60 may store the identification information of the moving body 40, the identification information of the in-vehicle battery 42, the stored power amount of the in-vehicle battery 42, any one of the breakdowns of the green power and the non-green power in the stored power amount of the in-vehicle battery 42, or a combination of these. After step S489, the power system 1 ends the process when the moving body 40 discharges green energy to the operator-side charger 33.

[0175] FIG. 20 is a flowchart showing an example of a processing procedure for the network server device 60 to determine the discharge amount of green power from the in-vehicle battery 42 to the operator-side battery 34. The network server device 60 performs the process of FIG. 20 in step S431 of FIG. 16.

[0176] (Step S511) The network server device 60 determines whether the stored power amount Y of the in-vehicle battery 42 is less than or equal to the sum of the green power amount a0 of the stored power amount of the in-vehicle battery 42 in the moving body owner facility 10 and the green power amount a1 of the charging power amount to the in-vehicle battery 42 in the substation facility 20 (Y ≦ a0 + a1).

[0177] If it is possible to measure the amount of power s generated by the moving body 40 itself, the amount of power corresponding thereto shall be included in either the amount of green power a1 or the amount of non-green power b1. That is, when the power generated by the moving body 40 itself is treated as green power, the network server device 60 includes the amount of power in the amount of green power a1 and calculates the amount of green power a1. On the other hand, when the power generated by the moving body 40 itself is treated as non-green power, the network server device 60 includes the amount of power in the amount of non-green power b1 and calculates the amount of non-green power b1.

[0178] Regarding whether the power generated by the moving body 40 itself is green power or non-green power, various treatments are possible. For example, it may be assumed that all the power generated by the moving body 40 is non-green power. Alternatively, when it is possible to measure the amount of power by distinguishing between the power generated by the generator using the power of the engine by burning fossil fuel and the regenerative power among the power generated by the moving body 40, as described above, it may be assumed that the power generated by the generator is non-green power and the regenerative power is green power. Alternatively, when it is possible to measure or calculate the amount of power by distinguishing between the regenerative power when the moving body 40 is running on green power and the regenerative power when the moving body 40 is running on non-green power among the regenerative power, it may be assumed that the regenerative power during running on green power is green power and the regenerative power during running on non-green power is non-green power.

[0179] When it is determined that Y ≤ a0 + a1 (step S511: YES), the process proceeds to step S512. When it is determined that Y > a0 + a1 (step S511: NO), the process proceeds to step S517.

[0180] (Step S512) The network server device 60 determines whether the green power amount a0 among the stored power amounts of the in-vehicle battery 42 in the mobile body at the mobile body owner facility 10 is 0 or less (a0 ≦ 0). When the green power amount a0 is 0 or less, it is considered that the mobile body 40 has consumed all of the green power amount a0 stored in the in-vehicle battery 42 at the time of departure from the mobile body owner facility 10 during travel.

[0181] When it is determined that ao ≦ 0 (step S512: YES), the process proceeds to step S513. When it is determined that ao > 0 (step S512: NO), the process proceeds to step S515.

[0182] (Step S513) The power generated by the mobile body 40 itself is regarded as green power. (Step S514) The network server device 60 determines the green power amount discharged from the in-vehicle battery 42 of the mobile body to the operator-side battery 34 as the stored power amount Y of the in-vehicle battery 42 of the mobile body.

[0183] In this case, since Y ≦ a0 + a1 and a0 ≦ 0, the stored power amount Y of the in-vehicle battery 42 of the mobile body is considered to be due to the green power amount a1, and the stored power amount Y is considered to be entirely the power amount of green power. In particular, based on the concept that the power for traveling of the mobile body 40 is consumed from non-green power, and from Y ≦ a0 + a1 in step S511, it can be considered that all of the non-green power amounts b0 and b1 have been consumed. Further, considering a0 ≦ 0 in step S512, even if the power generated by the mobile body 40 itself remains in the stored power amount Y, the amount of power treated as non-green power is consumed for the traveling of the mobile body 40, and it is considered that the power due to the green power amount a1 remains.

[0184] Therefore, the stored power amount Y is due to the green power amount a1 (or a part thereof) and the green power amount resulting from the green power amount a1, and as described above, it is considered to be entirely the power amount of green power. Therefore, the network server device 60 has determined to discharge all of the stored power amount Y of the in-vehicle battery 42 to the operator-side battery 34.

[0185] Alternatively, the network server device 60 may determine the amount of green power for discharging the in-vehicle battery 42 to the operator-side battery 34 as the remaining stored power amount obtained by subtracting a predetermined power amount, which is the power amount required for the movement of the in-vehicle battery 42 itself, from the stored power amount Y of the in-vehicle battery 42. After step S514, the network server device 60 ends the process of FIG.

[0186] (Step S515) The power generated by the moving body 40 itself is regarded as non-green power. (Step S516) The network server device 60 determines the amount of green power for discharging the in-vehicle battery 42 to the operator-side battery 34 as the power amount (Y - s) obtained by subtracting the self-generated power amount s of the moving body 40 from the stored power amount Y of the in-vehicle battery

[0187] In this case, since the amount of green power a0 stored in the in-vehicle battery 42 when the moving body 40 departs from the moving body owner facility 10 remains in the in-vehicle battery 42, part or all of the power (power amount s) generated by the moving body 40 itself may also remain in the in-vehicle battery 42. Since there is a possibility that the power generated by the moving body 40 itself is non-green power, the network server device 60 has determined to discharge the power amount Y - s, which is obtained by subtracting the self-generated power amount s of the moving body 40 from the stored power amount Y of the in-vehicle battery 42, to the operator-side battery 34. After step S516, the network server device 60 ends the process of FIG.

[0188] (Step S517) The network server device 60 determines the amount of green power discharged from the in-vehicle battery 42 to the operator-side battery 34 as the total (a0 + a1) of the amount of green power a0 in the power storage amount of the in-vehicle battery 42 in the vehicle owner's facility 10 and the amount of green power a1 in the amount of power charged to the in-vehicle battery 42 in the power supply facility 20. After step S517, the network server device 60 ends the process of FIG. 20.

[0189] As described above, the acquisition unit 64 acquires the charge / discharge history information in which the charge / discharge amount of the in-vehicle battery 42 and the type of power are associated, and the power storage amount information indicating the power storage amount of the in-vehicle battery 42. The calculation unit 65 calculates the power storage amount of the in-vehicle battery 42 for each type of power based on the charge / discharge history information and the power storage amount information.

[0190] Thereby, in the network server device 60, the power storage amount of the in-vehicle battery 42 can be calculated for each type of power such as green power and non-green power, and a specific type of power can be sold, such as selling green power among the power stored in the in-vehicle battery 42.

[0191] Further, the acquisition unit 64 further acquires the power generation amount information indicating the power generation amount of the moving body 40. The calculation unit 65 further calculates the power storage amount of the in-vehicle battery 42 for each type of power based on the power generation amount information. According to the network server device 60, the power storage amount of the in-vehicle battery 42 can be calculated for each type of power, reflecting the power generation amount of the moving body 40. According to the network server device 60, in this regard, the power storage amount of the in-vehicle battery 42 for each type of power can be calculated with higher accuracy. Further, the in-vehicle battery 42 can calculate the power storage amount of the in-vehicle battery 42 for each type of power, corresponding to both the case where the generated power of the moving body 40 is treated as green power and the case where it is treated as non-green power.

[0192] In addition, the acquisition unit 64 further acquires measurement values of the charge and discharge amounts of the storage battery measured by the charge amount sensor 44 and the discharge amount sensor 45 provided in the moving body 40 when the moving body 40 moves. The calculation unit 65 further calculates the stored power amount of the in-vehicle storage battery 42 by power type based on the measurement values of the charge and discharge amounts of the storage battery measured when the moving body 40 moves.

[0193] According to the network server device 60, the charge and discharge power amounts of the in-vehicle storage battery 42 when the moving body 40 moves can be obtained more accurately using the sensors. In this regard, according to the network server device 60, the stored power amount of the in-vehicle storage battery 42 by power type can be calculated with higher accuracy.

[0194] In addition, the acquisition unit 64 acquires charge and discharge history information in which the charge amount of green power to the in-vehicle storage battery 42 is associated with the identification information of the power generation facility that generated the green power. Thereby, in the network server device 60, it is possible to confirm the validity of the record of charging of green power, such as searching for the record of green power using the identification information of the power generation facility.

[0195] When charging to the in-vehicle storage battery 42 is performed at the power supply facility 20 on the movement route of the moving body 40, the calculation unit 65 calculates, based on the stored power amount by power type before the start of movement of the moving body 40 and the stored power amount at the power supply facility 20, the stored power amount of the in-vehicle storage battery 42 at the end of charging at the power supply facility 20 by power type.

[0196] In the network server device 60, by calculating the information on the state of charge of the in-vehicle battery 42 in the power supply facility 20, it is possible to reflect the power consumption status during the movement of the moving body 40 in the calculation of the stored power amount by type of power of the in-vehicle battery 42 when the moving body 40 arrives at the operator's facility 30. According to the network server device 60, in this regard, it is possible to calculate the stored power amount by type of power of the in-vehicle battery 42 more in line with the actual situation. For example, according to the network server device 60, it is possible to reflect in the stored power amount by type of power of the in-vehicle battery 42 that the power consumption of the moving body 40 is not sufficient with only non-green power amount and that green power amount has also been consumed.

[0197] FIG. 21 is a diagram showing an example of the configuration of the type-based power amount calculation device according to the embodiment. In the configuration shown in FIG. 21, the type-based power amount calculation device 610 includes an acquisition unit 611 and a calculation unit 612.

[0198] With such a configuration, the acquisition unit 611 acquires charge / discharge history information in which the charge / discharge amount and the type of power of the battery of the moving body are associated, and state-of-charge information indicating the state of charge of the battery. The calculation unit 612 calculates the state of charge of the battery by type of power based on the charge / discharge history information and the state-of-charge information. Thereby, in the type-based power amount calculation device 610, it is possible to calculate the stored power amount of the battery by type of power such as green power and non-green power, and it is possible to sell a specific type of power such as selling green power among the power stored in the battery.

[0199] FIG. 22 is a flowchart showing an example of the processing procedure in the type-based power amount calculation method according to the embodiment. The processing shown in FIG. 22 includes a step of acquiring charge / discharge history information and state-of-charge information, and a step of calculating the state of charge by type of power. In the step of acquiring charge / discharge history information and stored power amount information, charge / discharge history information in which the charge / discharge amount of the storage battery of the moving body is associated with the type of power, and stored power amount information indicating the stored power amount of the storage battery are acquired. In the step of calculating the stored power amount by type of power, the stored power amount of the storage battery is calculated by type of power based on the charge / discharge history information and the stored power amount information. In the processing method of FIG. 22, the stored power amount of the storage battery can be calculated by type of power such as green power and non-green power, and a specific type of power can be sold, such as selling green power among the power stored in the storage battery.

[0200] FIG. 23 is a schematic block diagram showing the configuration of a computer according to at least one embodiment. In the configuration shown in FIG. 23, the computer 700 includes a CPU (Central Processing Unit) 710, a main storage device 720, an auxiliary storage device 730, and an interface 740.

[0201] Any one or more of the above network server device 60 and the power amount calculation device 610 by type may be implemented in the computer 700. In that case, the operations of the respective processing units described above are stored in the auxiliary storage device 730 in the form of a program. The CPU 710 reads the program from the auxiliary storage device 730, expands it in the main storage device 720, and executes the above processing according to the program. Further, the CPU 710 secures a storage area corresponding to each of the above storage units in the main storage device 720 according to the program.

[0202] When the network server device 60 is implemented in the computer 700, the control unit 63 and the operations of its respective units are stored in the auxiliary storage device 730 in the form of a program. The CPU 710 reads the program from the auxiliary storage device 730, expands it in the main storage device 720, and executes the above processing according to the program.

[0203] Further, the CPU 710 secures a storage area corresponding to the storage unit 62 in the main storage device 720 according to the program. The communication by the communication unit 61 is executed by the interface 740 having a communication function and performing communication according to the control of the CPU 710.

[0204] When the type-based power amount calculation device 610 is implemented in the computer 700, the operations of the acquisition unit 611 and the calculation unit 612 are stored in the auxiliary storage device 730 in the form of a program. The CPU 710 reads the program from the auxiliary storage device 730, expands it in the main storage device 720, and executes the above processing according to the program.

[0205] Note that a program for realizing all or part of the functions of the network server device 60 and the type-based power amount calculation device 610 may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed to perform the processing of each part. Here, the "computer system" includes hardware such as an OS (Operating System) and peripheral devices. The "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM (Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), or a storage device such as a hard disk built into a computer system. Further, the above program may be for realizing a part of the above-described functions, and may also be a program that can be realized in combination with a program already recorded in the computer system for realizing the above-described functions.

Explanation of Signs

[0206] 1 Power system 10 Mobile body owner equipment 11 Owner-side communication master unit 12 Owner-side smart meter 13 Owner-side charger / discharger 14 Solar power generator 20 Substation equipment 21 Substation-side communication master unit 22 Substation-side smart meter 23 Power supply and charger on the substation side 30 Operator's equipment 31 Main communication device on the operator's side 32 Smart meter on the operator's side 33 Power supply and charger on the operator's side 34 Battery on the operator's side 35 Server device on the operator's side 40 Mobile body 41 Communication slave device 42 Built-in battery in the mobile body 43 Mobile body control unit 44 Charge amount sensor 45 Discharge amount sensor 50 Smartphone 60 Network server device 61 Communication unit 62 Memory unit 63 Control unit 64, 611 Acquisition unit 65, 612 Calculation unit 70 Electric power company equipment 80 Communication network 90 Power grid 610 Type-specific electric power amount calculation device

Claims

1. An acquisition unit that acquires charge / discharge history information in which the charge / discharge amount of a battery of a moving body is associated with the types of power including green power and non-green power, and power storage amount information indicating the power storage amount of the battery; Based on the charge / discharge history information and the power storage amount information, calculate the power storage amount of the battery by type of power. When the moving body is moving, for each section of the moving route of the moving body where information on the charge amount and discharge amount of the battery can be obtained, add the charge amount by type of power to the power storage amount by type of power before the start of movement in that section, and then subtract the discharge amount by type of power in that section. If a partial section where only one of the charge amount information or the discharge amount information can be obtained is included in one such section, for the entire section including that partial section, add the charge amount by type of power in that section to the power storage amount by type of power before the start of movement in that section, and then subtract the discharge amount by type of power in that section to calculate the power storage amount of the battery at the end of movement in that section by type of power. Regarding the discharge amount of the battery due to the movement of the moving body, assuming that non-green power is preferentially consumed, a calculation unit that subtracts the discharge amount from the power storage amount by type of power; A type-specific power storage amount calculation device comprising the above.

2. The acquisition unit further acquires power generation amount information indicating the power generation amount of the moving body; The calculation unit further calculates the power storage amount of the battery by type of power based on the power generation amount information; The type-specific power storage amount calculation device according to Claim 1.

3. The acquisition unit further acquires a measured value of the charge / discharge amount of the battery measured by a sensor provided on the moving body when the moving body is moving; The calculation unit further calculates the power storage amount of the battery by type of power based on the measured value; The type-specific power storage amount calculation device according to Claim 1 or Claim 2.

4. The acquisition unit acquires the charge / discharge history information in which the charge amount of green power to the battery is associated with the identification information of the power generation facility that generated the green power; The type-specific power storage amount calculation device according to any one of Claims 1 to 3.

5. When charging of the storage battery is performed at a power supply facility on the moving path of the moving body, the calculation unit calculates, for each type of power, the amount of power stored in the storage battery at the end of charging at the power supply facility based on the amount of power stored for each type of power before the start of movement of the moving body and the amount of power stored at the power supply facility. The type-specific power storage amount calculation device according to any one of claims 1 to 4.

6. Obtaining the charge and discharge amount of the storage battery of the moving body, charge and discharge history information in which the types of power including green power and non-green power are associated, and power storage amount information indicating the amount of power stored in the storage battery; Based on the charge and discharge history information and the power storage amount information, calculating the amount of power stored in the storage battery for each type of power. When the moving body is moving, for each section on the moving path of the moving body where information on the charge amount and discharge amount of the storage battery can be obtained, to the amount of power stored for each type of power before the start of movement in that section, adding the charge amount for each type of power in that section, and then subtracting the discharge amount for each type of power in that section. When a partial section in which only one of the charge amount information or the discharge amount information is obtained is included in one of the sections, for the entire section including that partial section, to the amount of power stored for each type of power before the start of movement in that section, adding the charge amount for each type of power in that section, and then subtracting the discharge amount for each type of power in that section to calculate the amount of power stored in the storage battery at the end of movement in that section for each type of power. Regarding the discharge amount of the storage battery due to the movement of the moving body, assuming that non-green power is preferentially consumed, subtracting the discharge amount from the amount of power stored for each type of power. A type-specific power storage amount calculation method including the above.

7. In a computer, Obtaining the charge and discharge amount of the storage battery of the moving body, charge and discharge history information in which the types of power including green power and non-green power are associated, and power storage amount information indicating the amount of power stored in the storage battery; Based on the charge / discharge history information and the power storage amount information, calculate the power storage amount of the storage battery by power type. When the moving body is moving, for each section of the moving path of the moving body where information on the charge amount and discharge amount of the storage battery can be obtained, add the charge amount of that section to the power storage amount by power type before the start of movement in that section, and then subtract the discharge amount of that section by power type. If a partial section where only one of the charge amount information or discharge amount information can be obtained is included in one of the sections, for the entire section including that partial section, add the charge amount of that section to the power storage amount by power type before the start of movement in that section, and then subtract the discharge amount of that section by power type, and calculate the power storage amount of the storage battery at the end of movement in that section by power type. Regarding the discharge amount of the storage battery due to the movement of the moving body, assume that non-green power is preferentially consumed, and subtract the discharge amount from the power storage amount by power type. A program for executing the above.

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