Battery Management System

Abstract

To provide a storage battery management system in which a storage battery has a communication function and can control various apparatuses.SOLUTION: A storage battery management system 1 of the present disclosure includes: a storage battery pack 10; and a power control apparatus 20 that the storage battery pack 10 is attached to and detached from and that performs power control, which is control of at least one of charging and discharging of the storage battery pack 10. The storage battery pack 10 includes: a first communication unit 12 that receives schedule information indicating a schedule for power control from an information terminal 30 or a server; a second communication unit 15 that communicates with the power control apparatus 20; and a first control unit 13 that transmits execution information for executing power control to the power control apparatus 20 using the second communication unit 15 based on the received schedule information.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a battery management system. [Background technology]

[0002] Conventionally, there exists a home storage battery device that charges at night when electricity rates are low and supplies power during the day when electricity rates are high. Patent Document 1 discloses a storage battery operation method and a power control device that evaluates prediction errors of the power generation of a private power generation device and the power consumption of a load in the past stored in a memory unit, corrects the predicted values ​​of the power generation and the power consumption for the next day, respectively, and calculates the amount of charging power of the storage battery to be charged at night based on the difference power between the corrected predicted values ​​of the power generation and the power consumption. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-213389 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the storage battery in the power control device disclosed in Patent Document 1 does not have a communication function, and the storage battery cannot control various devices.

[0005] In view of this, the present disclosure provides a storage battery management system in which a storage battery has a communication function and can control various devices. [Means for solving the problem]

[0006] A battery management system according to one embodiment of the present disclosure includes a battery pack, and a power control device to which the battery pack is attached and detached and which performs power control, which is control of at least one of charging and discharging the battery pack, and the battery pack includes a first communication unit that receives schedule information indicating a schedule for the power control from an information terminal or a server, a second communication unit that communicates with the power control device, and a first control unit that transmits execution information for executing the power control to the power control device using the second communication unit based on the received schedule information.

[0007] These comprehensive or specific aspects may be realized by an apparatus, a method, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM, or may be realized by any combination of an apparatus, a method, an integrated circuit, a computer program, and a recording medium. Effect of the Invention

[0008] In a storage battery management system according to one aspect of the present disclosure, a storage battery has a communication function and can control various devices. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram of a battery management system according to an embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an example of a battery pack used in the battery management system according to the embodiment. [Diagram 3] FIG. 3 is a block diagram of a case in which a battery pack of a battery management system controls a power control device in an embodiment. [Figure 4] FIG. 4 is a block diagram of a case in which a power control device of a battery management system in an embodiment controls itself. [Diagram 5] FIG. 5 is a diagram illustrating a flow of power during charging in the battery management system according to the embodiment. [Figure 6]FIG. 6 is a diagram illustrating a flow of power during discharging in the battery management system according to the embodiment. [Figure 7] FIG. 7 is a diagram illustrating a charging and discharging pattern of the battery management system according to the embodiment. [Figure 8] FIG. 8 is a flowchart showing the operation of setting a timer or capacity in the battery management system according to the embodiment. [Figure 9] FIG. 9 is a flowchart showing a charging and discharging operation of the battery management system according to the embodiment. [Figure 10] FIG. 10 is a diagram showing the relationship between main components of the battery management system according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (Embodiment) First, an overview of a battery management system according to an embodiment will be described. Fig. 1 is a block diagram of a battery management system 1 according to an embodiment.

[0011] The battery management system 1 includes a battery pack 10, a power control device 20, and an information terminal 30.

[0012] The storage battery pack 10 includes a storage battery unit 11, a first communication unit 12, a first control unit 13, a memory unit 14, a second communication unit 15, a discharge terminal 16, a communication terminal 17, and a charging terminal 18. The power control device 20 includes a second control unit 21, a first switching unit 22, a conversion unit 23, a charging power source 24, a second switching unit 25, an input unit 26, and an output unit 27.

[0013] The storage battery unit 11 is a storage battery that charges electricity. The storage battery unit 11 is, for example, a lithium ion battery, which is a secondary battery that charges and discharges by the movement of lithium ions between a positive electrode and a negative electrode. Lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, or the like may be used for the positive electrode of the storage battery unit 11. The storage battery unit 11 charges or discharges under the control of the second control unit 21. When charging, the storage battery unit 11 receives electricity from the charging terminal 18. When discharging, the storage battery unit 11 sends electricity to the discharging terminal 16.

[0014] The first communication unit 12 is a communication circuit that performs wireless communication. The first communication unit 12 may be a communication circuit that can also perform wired communication. The first communication unit 12 performs wireless communication with the information terminal 30, and receives schedule information from the information terminal 30 that indicates a schedule of power control performed by the second control unit 21 of the power control device 20. The schedule of power control is a schedule (schedule information) of charging or discharging performed by the storage battery unit 11. The first communication unit 12 may also communicate with a server device that realizes a cloud that stores schedule information and the like. The first communication unit 12 may communicate with the information terminal 30 that has received information from the server device by communicating with the server device that realizes the cloud, and acquire the information that the information terminal 30 has received from the server device.

[0015] The first control unit 13 is realized by a circuit and a memory. The first control unit 13 transmits execution information for executing power control to the power control device 20 using the second communication unit 15 based on the schedule information received by the first communication unit 12. The first control unit 13 also transmits a command based on the schedule information to the power control device 20 as the execution information.

[0016] The storage unit 14 is realized by a memory. The storage unit 14 stores schedule information received by the first communication unit 12, control information for controlling the power control device 20 that the second communication unit 15 transmits to the second control unit 21, and the like. The information stored in the storage unit 14 may include time information.

[0017] The second communication unit 15 is a communication circuit that performs wired communication. The second communication unit 15 may be a communication circuit that can also perform wireless communication. The second communication unit 15 communicates with the power control device 20. Specifically, the first control unit 13 transmits execution information for executing power control to the power control device 20 using the second communication unit 15 based on the received schedule information.

[0018] The discharge terminal 16 is a terminal that receives electricity discharged from the storage battery unit 11. The discharge terminal 16 may be made of metal. The electricity received by the discharge terminal 16 from the storage battery unit 11 is output from the output unit 27 to an external load device or the like via the first switching unit 22.

[0019] The communication terminal 17 is a terminal through which the second communication unit 15 performs wired communication with the second control unit 21. The communication terminal 17 may be made of metal. The communication terminal 17 may be a terminal through which the second communication unit 15 performs wireless communication with the second control unit 21. The communication terminal 17 may transmit schedule information, control information for controlling the power control device 20, and the like to the second control unit 21.

[0020] The charging terminal 18 is a terminal that supplies electricity for charging the storage battery unit 11. The charging terminal 18 may be made of metal. The charging terminal 18 receives the power from the power grid acquired by the input unit 26 via the second switching unit 25, and supplies the received power to the storage battery unit 11.

[0021] The second control unit 21 is realized by a circuit and a memory. The second control unit 21 receives schedule information, and performs power control on the storage battery pack 10 based on the received schedule information.

[0022] For example, at a timing when the schedule information indicates charging, the second control unit 21 controls the second switching unit 25 to energize the charging terminal 18 and charge the storage battery unit 11. Conversely, at a timing when the schedule information indicates discharging, the second control unit 21 discharges the storage battery unit 11 and sends the electricity received by the discharging terminal 16 to the output unit 27 by controlling the first switching unit 22.

[0023] The first switching unit 22 is a switching unit that switches a path for flowing the power acquired by the input unit 26 from the system power supply directly to the output unit 27. When the power control device 20 wants to send the power acquired by the input unit 26 from the system power supply directly from the output unit 27 to a load device beyond the power supply without sending the power to the storage battery pack 10, the power control device 20 controls the first switching unit 22 to energize the path connecting the input unit 26 to the output unit 27. In addition, when the storage battery unit 11 of the storage battery pack 10 discharges power, the power control device 20 controls the first switching unit 22 to send the power discharged by the storage battery unit 11 to the output unit 27 via the conversion unit 23.

[0024] The conversion unit 23 converts the DC power discharged from the storage battery unit 11 into AC power. The conversion unit 23 is realized by an inverter or the like.

[0025] The charging power source 24 is a power source that drives the power control device 20 and charges the power that the input unit 26 receives from the system power source.

[0026] The second switching unit 25 is a switching unit that switches a path for transmitting the power acquired by the input unit 26 to the storage battery unit 11. When transmitting the power acquired by the input unit 26 from the system power supply to the storage battery pack 10, the power control device 20 switches the second switching unit 25 to transmit the power to the storage battery unit 11 via the charging terminal 18.

[0027] The input unit 26 accepts an input of electric power from a grid power supply. The input unit 26 may be realized by a metal terminal. The input unit 26 acquires electric power from the grid power supply and sends the electric power to the charging power supply 24. Alternatively, the input unit 26 acquires electric power from the grid power supply and sends the electric power to the output unit 27 via the first switching unit 22.

[0028] The output unit 27 outputs electric power to a load device or the like. The output unit 27 may be realized by a metal terminal. The output unit 27 receives the electric power discharged from the storage battery unit 11 via the conversion unit 23 and the first switching unit 22, or receives the electric power acquired by the input unit 26 via the first switching unit 22.

[0029] The information terminal 30 is realized by a smartphone, a tablet terminal, a server terminal, or the like. The information terminal 30 transmits schedule information indicating a schedule for power control to the first communication unit 12 by wireless communication or the like. Furthermore, when the information terminal 30 is a server terminal, the server terminal transmits to the storage battery pack 10 an instruction to update schedule information indicating the timing for charging or discharging the storage battery pack 10, which is included in the charge / discharge information, in an emergency.

[0030] Next, a storage battery pack 10 used in the storage battery management system 1 will be described. Fig. 2 is a diagram showing an example of the storage battery pack 10 used in the storage battery management system 1 in an embodiment. The storage battery pack 10 includes a lithium ion battery and has a communication function such as Bluetooth (registered trademark). The external appearance of the storage battery pack 10 is shown in Fig. 2(a). As shown in Fig. 2(b), the output terminal is a USB port.

[0031] Next, a description will be given of a case where the storage battery pack 10 controls the power control device 20. Fig. 3 is a block diagram of a case where the storage battery pack 10 of the storage battery management system 1 in the embodiment controls the power control device 20.

[0032] First, the information terminal 30 sets schedule information indicating a schedule for charging and discharging the storage battery unit 11, and transmits the set schedule information to the first communication unit 12 of the storage battery pack 10.

[0033] Next, the first control unit 13 of the storage battery pack 10 transmits execution information for executing power control in the power control device 20 to the second control unit 21 using the second communication unit 15. Here, the first control unit 13 generates the execution information based on the schedule information received by the first communication unit 12. By operating the power control device 20, charging and discharging of the storage battery pack 10 are controlled in the storage battery management system 1.

[0034] The execution information may be, for example, information that causes the second control unit 21 to turn on or off the first switching unit 22 and the second switching unit 25 based on the schedule information.

[0035] When the storage battery pack 10 controls the power control device 20, the first control unit 13 uses the second communication unit 15 to transmit only execution information, without transmitting schedule information, to the second control unit 21. The second control unit 21 controls the first switching unit 22, the second switching unit 25, etc., based only on the execution information, not on the schedule information.

[0036] Next, a description will be given of a case where the power control device 20 performs power control based on information transmitted from the storage battery pack 10. Fig. 4 is a block diagram of a case where the power control device 20 of the storage battery management system 1 in the embodiment controls itself.

[0037] First, the information terminal 30 sets schedule information indicating a schedule for charging and discharging the storage battery unit 11, and transmits the set schedule information to the first communication unit 12 of the storage battery pack 10.

[0038] Next, the first control unit 13 of the storage battery pack 10 uses the second communication unit 15 to transmit the schedule information received by the first communication unit 12 to the second control unit 21.

[0039] Next, the second control unit 21 generates execution information based on the received schedule information. As described above, the execution information may be, for example, information that causes the second control unit 21 to turn on or off the first switching unit 22 and the second switching unit 25 based on the schedule information.

[0040] When the power control device 20 performs power control, the first control unit 13 transmits only schedule information to the second control unit 21 using the second communication unit 15. The second control unit 21 generates execution information based on the schedule information, and controls the first switching unit 22, the second switching unit 25, etc. based on the execution information. At this time, the second control unit 21 obtains information regarding date and time from the first control unit 13, which transmits the information using the second communication unit 15.

[0041] Next, a description will be given of the flow of power during charging in the battery management system 1. Fig. 5 is a diagram showing the flow of power during charging in the battery management system 1 according to the embodiment.

[0042] When the storage battery unit 11 is being charged, the power passes from the input unit 26 through the charging power source 24, through the second switching unit 25, and reaches the second control unit 21. The power then passes through the charging terminal 18, reaches the first control unit 13, and reaches the storage battery unit 11.

[0043] At this time, a part of the power may be passed from the input unit 26 through the first switching unit 22 to the output unit 27 (hereinafter referred to as pass-through output).

[0044] Furthermore, when the information terminal 30 sets the schedule information, the information terminal 30 may accept the following information input from the user at an input unit included in the information terminal 30. The input information accepted by the information terminal 30 is, for example, the charging start time, the charging end time, the charging capacity, and the presence or absence of a steady setting. When the information terminal 30 is a tablet terminal or a smartphone, the input unit may be a screen.

[0045] Next, a description will be given of the flow of power during discharging in the battery management system 1. Fig. 6 is a diagram showing the flow of power during discharging in the battery management system according to the embodiment.

[0046] When the storage battery unit 11 is discharging, the power passes from the storage battery unit 11 through the discharge terminal 16 and reaches the second control unit 21. The power then passes through the conversion unit 23 and the first switching unit 22 to reach the output unit 27.

[0047] Furthermore, when the information terminal 30 sets the schedule information, the information terminal 30 may receive the following information input from the user at an input unit included in the information terminal 30. The input information received by the information terminal 30 is the discharge start time, the discharge end time, the discharge capacity, and the presence or absence of a steady-state setting. If the information terminal 30 is a tablet terminal or a smartphone, the input unit may be a screen.

[0048] Next, an example of a charge / discharge pattern of the battery management system 1 will be described. Fig. 7 is a diagram showing a charge / discharge pattern of the battery management system 1 in the embodiment. For example, the battery management system 1 starts charging the battery unit 11 at 11pm every night, and charges the battery unit 11 up to a charging rate of 90%. Then, the battery management system 1 starts discharging the battery unit 11 at 10am the next day, and discharges the battery unit 11 up to a charging rate of 40%. At this time, the battery management system 1 discharges power from the grid power from the output unit 27 by pass-through output from 11pm to 10am every night, and outputs power from the battery unit 11 for several hours from 10am. Then, the battery management system 1 stops output from the battery unit 11, and again outputs power from the grid power from the output unit 27 by pass-through output.

[0049] Next, a description will be given of the operation of setting the timer of the battery management system 1 or the charge / discharge capacity of the battery unit 11. Fig. 8 is a flowchart showing the operation of setting the timer or capacity of the battery management system in the embodiment.

[0050] The first control unit 13 determines whether or not to perform timer setting (step S10). The first control unit 13 determines whether or not to perform timer setting for determining the timing of power control performed by the second control unit 21. Here, the timer setting specifically refers to the setting of the charging start time and charging end time, and the discharging start time and discharging end time, etc.

[0051] When the first control unit 13 determines to set the timer (Yes in step S10), the information terminal 30 accepts input of the charging start time and charging end time, and the discharging start time and discharging end time from the user (step S11).

[0052] When the first control unit 13 determines not to set the timer (No in step S10), the process proceeds to step S12.

[0053] Next, the first control unit 13 determines whether to input a condition related to the capacity of charging and discharging (step S12). Here, the capacity of charging and discharging refers to the capacity of power charged to the storage battery unit 11 or the capacity of power discharged from the storage battery unit 11. Inputting the condition related to the capacity of charging and discharging may mean that the information terminal 30 accepts input of information related to the capacity of power charged to the storage battery unit 11 or the capacity of power discharged from the storage battery unit 11. Specifically, the user may set an arbitrary value by himself / herself, or the information terminal 30 or the server device realizing the cloud may present a recommended setting (high power operation, eco mode operation) to the user and allow the user to select, or the information terminal 30 or the server device realizing the cloud may automatically set. Specifically, the capacity of power charged to the storage battery unit 11 or the capacity of power discharged from the storage battery unit 11 may be a charging stop capacity or a discharging stop capacity.

[0054] When the first control unit 13 determines that the conditions related to the charge / discharge capacity are to be input (Yes in step S12), the information terminal 30 accepts the input of the charge stop capacity or the discharge stop capacity (step S13). The information terminal 30 transmits information related to the input of the charge stop capacity or the discharge stop capacity to the first control unit 13 via the first communication unit 12.

[0055] When the first control unit 13 does not determine that the condition related to the charge / discharge capacity is to be input (No in step S12), the battery management system 1 ends the operation.

[0056] Next, a description will be given of the charging and discharging operation of the battery management system 1. Fig. 9 is a flowchart showing the charging and discharging operation of the battery management system 1 according to the embodiment.

[0057] First, the first control unit 13 determines whether or not the storage battery pack 10 is set in the power control device 20 (step S20). Here, the power control device 20 may be, for example, a charger / discharger.

[0058] When the first control unit 13 determines that the storage battery pack 10 has been set in the power control device 20 (Yes in step S20), the first control unit 13 determines whether the current time is within the charge / discharge start time (step S21). The first control unit 13 has a clock function and determines whether the current time is within the charge / discharge start time set in the received schedule information.

[0059] When the first control unit 13 has not determined that the storage battery pack 10 has been set in the power control device 20 (No in step S20), the process returns to step S20. When the first control unit 13 has not determined that the storage battery pack 10 has been set in the power control device 20, the first control unit 13 again determines whether or not the storage battery pack 10 has been set in the power control device 20.

[0060] Next, the second control unit 21 starts power control (step S22). Specifically, the power control here is charging the storage battery unit 11 or discharging the storage battery unit 11. Note that the first control unit 13 may start the power control instead of the second control unit 21.

[0061] Next, the second control unit 21 continues the power control (step S23). Specifically, the power control here refers to charging the storage battery unit 11 or discharging the storage battery unit 11. Note that the first control unit 13 may continue the power control instead of the second control unit 21.

[0062] Next, the first control unit 13 determines whether the capacity of the storage battery unit 11 is the end capacity of the power control (step S24). Specifically, the first control unit 13 determines whether the capacity of the storage battery unit 11 that has been subjected to the power control is the end capacity of the power control set in the schedule information acquired by the first control unit 13.

[0063] When the first control unit 13 determines that the capacity of the storage battery unit 11 is not the end capacity for power control (No in step S24), the first control unit 13 determines whether it is the end time for power control for the storage battery unit 11 (step S25). The first control unit 13 has a clocking function, and determines whether the current time in step S25 is the end time for power control for the storage battery unit 11. Here, power control refers to charging to the storage battery unit 11 and discharging from the storage battery unit 11.

[0064] When the first control unit 13 determines that the capacity of the storage battery unit 11 is the end capacity for power control (Yes in step S24), the storage battery management system 1 ends the operation.

[0065] When the first control unit 13 determines that it is time to end the power control on the storage battery unit 11 (Yes in step S25), the storage battery management system 1 ends the operation.

[0066] When the first control unit 13 has not determined that it is time to end the power control for the storage battery unit 11 (No in step S25), the process returns to step S23.

[0067] Next, there will be described relationships between the operations of the main components of the storage battery management system 1. Fig. 10 is a diagram showing relationships between the main components of the storage battery management system 1 according to the embodiment.

[0068] As shown in 1-1 and 1-2 of FIG. 10, the schedule information or execution information is wirelessly transmitted from the information terminal 30 or the server to the first communication unit 12 of the storage battery pack 10.

[0069] Then, the schedule information or execution information transmitted to the second control unit 21 in 1-1 and 1-2 in Fig. 10 is transmitted from the second communication unit 15 of the storage battery pack to the power control device 20. The power control device is a charger, a discharger, or a charger / discharger, and communication of schedule information and the like with each of the above is represented by 2-1, 2-2, and 2-3 in Fig. 10.

[0070] The second control unit 21 of the power control device 20 may communicate with the pass-through charge / discharge mechanism and perform pass-through output when the above-mentioned 2-1, 2-2, and 2-3 are transmitted. The instructions 1-1, 1-2, and 1-3, as well as 2-1, 2-2, and 2-3 may include information on the charging capacity of the storage battery unit 11 or information on the discharging capacity from the storage battery unit 11.

[0071] Moreover, the device that executes the instructions 2-1, 2-2, and 2-3 may be the battery pack 10 or the power control device 20 (a charger, a discharger, or a charger / discharger).

[0072] As shown in 3-1, 3-2, and 3-3, the charger, the discharger, and the charger / discharger may control the pass-through charge / discharge mechanism to execute pass-through output.

[0073] Furthermore, the server transmits to the storage battery pack 10 an instruction to update schedule information indicating the timing of charging or discharging the storage battery pack 10, which is included in the charge / discharge information, in an emergency, and the storage battery pack 10 updates the schedule information included in the charge / discharge information based on the instruction. For example, in an emergency such as a typhoon or flood in a nearby area, the server may cancel discharging from the storage battery unit 11 and prioritize charging to the storage battery unit 11. Specifically, the server may update the schedule for discharging from the storage battery unit 11, set it as a schedule for charging the storage battery unit 11, and transmit it to the first communication unit 12 of the storage battery pack 10. Information on the typhoon or flood may be determined by the server with reference to external information such as a weather forecast or disaster warning information, or an administrator of the server may determine an emergency and register the information in the server.

[0074] [Effects, etc.] The battery management system 1 of the present disclosure comprises a battery pack 10, and a power control device 20 to which the battery pack 10 is attached and detached, and which performs power control, which is control of at least one of charging and discharging of the battery pack 10. The battery pack 10 comprises a first communication unit 12 that receives schedule information indicating a schedule for power control from an information terminal 30 or a server, a second communication unit 15 that communicates with the power control device 20, and a first control unit 13 that transmits execution information for executing power control to the power control device 20 using the second communication unit 15 based on the received schedule information.

[0075] As a result, in the storage battery management system 1 of the present disclosure, the storage battery pack 10 can transmit schedule information to the power control device 20. Therefore, the storage battery pack 10 itself can control the power to the storage battery unit 11.

[0076] Also, for example, in the battery management system 1 of the present disclosure, the first control unit 13 transmits to the power control device 20 a command based on the schedule information as the execution information.

[0077] As a result, the battery management system 1 of the present disclosure can perform power control by controlling the battery packs 10. Therefore, the battery packs 10 themselves can control the power supplied to the battery unit 11.

[0078] Also, for example, in the battery management system 1 disclosed herein, the first control unit 13 transmits schedule information as execution information, and the power control device 20 includes a second control unit 21 that receives the schedule information and performs power control based on the received schedule information.

[0079] As a result, the storage battery management system 1 of the present disclosure can perform power control under the control of the power control device 20. Therefore, the storage battery packs themselves can indirectly control the power to the storage battery unit 11 by transmitting schedule information to the power control device 20.

[0080] Also, for example, in the battery management system 1 disclosed herein, the first communication unit 12 receives schedule information through wireless communication, and the second communication unit 15 transmits execution information through wired communication.

[0081] This allows the storage battery management system 1 of the present disclosure to use an appropriate communication method depending on the installation location and the connection relationship of the devices.

[0082] Also, for example, in the battery management system 1 disclosed herein, the first communication unit 12 receives schedule information from the information terminal 30.

[0083] As a result, in the battery management system 1 of the present disclosure, the battery pack 10 can receive schedule information through communication. Therefore, the battery pack itself can directly or indirectly control power to the battery unit 11 by transmitting schedule information to the power control device.

[0084] Also, for example, in the storage battery management system 1 of the present disclosure, the first communication unit 12 receives schedule information from the server.

[0085] As a result, in the battery management system 1 of the present disclosure, the battery pack 10 can receive schedule information through communication. Therefore, the battery pack itself can directly or indirectly control power to the battery unit 11 by transmitting schedule information to the power control device.

[0086] Also, for example, in the storage battery management system 1 of the present disclosure, the information terminal 30 and the server each determine charge / discharge information for at least one storage battery pack 10 among the multiple storage battery packs 10.

[0087] This allows the battery management system 1 of the present disclosure to control a plurality of battery packs 10.

[0088] Also, for example, in the battery management system 1 disclosed herein, in the event of an emergency, the server transmits to the battery pack 10 an instruction to update schedule information indicating the timing for charging or discharging the battery pack 10, which is included in the charge / discharge information for the battery pack 10, and the battery pack 10 updates the schedule information included in the charge / discharge information based on the instruction.

[0089] This allows the battery management system 1 of the present disclosure to perform charging and discharging at an appropriate timing in the event of an emergency.

[0090] Also, for example, in the storage battery management system 1 of the present disclosure, the information terminal 30 is a mobile terminal.

[0091] This allows the storage battery management system 1 of the present disclosure to set schedule information and the like using a mobile terminal such as a smartphone.

[0092] Also, for example, in the storage battery management system 1 of the present disclosure, the server is a dedicated terminal.

[0093] As a result, the battery management system 1 according to the present disclosure can set schedule information and the like using a dedicated terminal such as a server.

[0094] Also, for example, in the battery management system 1 of the present disclosure, the power control device 20 performs both charging and discharging of the battery pack 10 as power control.

[0095] This allows the storage battery management system 1 of the present disclosure to charge and discharge the storage battery unit 11 of the storage battery pack 10.

[0096] Also, for example, in the battery management system 1 disclosed herein, the power control device 20 includes an input unit 26 to which a first power for charging the battery pack 10 is input, an output unit 27 to which a second power obtained by discharging the battery pack 10 is output, and a first switching unit 22 that switches whether the first power input to the input unit 26 is output as is to the output unit 27, or the second power is output.

[0097] This allows the storage battery management system 1 of the present disclosure to output electric power from the output unit 27 while charging the storage battery unit 11 of the storage battery pack 10.

[0098] (others) Although the embodiments have been described above, the present disclosure is not limited to the above-described embodiments.

[0099] For example, in the above embodiment, the process executed by a specific processing unit may be executed by another processing unit. Also, the order of multiple processes may be changed, or multiple processes may be executed in parallel.

[0100] In the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

[0101] Furthermore, each component may be realized by hardware. For example, each component may be a circuit (or an integrated circuit). These circuits may form a single circuit as a whole, or each may be a separate circuit. Furthermore, each of these circuits may be a general-purpose circuit, or a dedicated circuit.

[0102] In addition, the general or specific aspects of the present disclosure may be realized in a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM. In addition, the general or specific aspects of the present disclosure may be realized in any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0103] For example, the present disclosure may be realized as a program for causing a computer to execute the lighting control method according to the above embodiment. The present disclosure may be realized as a computer-readable non-transitory recording medium having such a program recorded thereon.

[0104] In addition, the present disclosure also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art may conceive, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present disclosure. [Explanation of symbols]

[0105] 10 Battery pack 12 First Communications Department 13 First Control Section 15 Second Communications Department 20 Power control device 21 Second Control Section 22 First switching section 26 Input section 27 Output section 30 Information terminal

Claims

1. A battery pack; a power control device to which the storage battery pack is detached and which performs power control, which is control of at least one of charging and discharging of the storage battery pack; The battery pack includes: a first communication unit that receives schedule information indicating a schedule of the power control from an information terminal or a server; A second communication unit that communicates with the power control device; a first control unit that transmits execution information for executing the power control to the power control device using the second communication unit based on the received schedule information. Battery management system.

2. The first control unit transmits a command based on the schedule information as the execution information to the power control device. The battery management system according to claim 1 .

3. The first control unit transmits the schedule information as the execution information, The power control device includes: a second control unit that receives the schedule information and performs the power control based on the received schedule information; The battery management system according to claim 1 .

4. The first communication unit receives the schedule information through wireless communication, The second communication unit transmits the execution information by wired communication. The battery management system according to any one of claims 1 to 3.

5. The first communication unit receives schedule information from the information terminal. The battery management system according to any one of claims 1 to 4.

6. The first communication unit receives schedule information from the server. The battery management system according to any one of claims 1 to 4.

7. the information terminal and the server each determine charge / discharge information for at least one of the plurality of storage battery packs; The battery management system according to any one of claims 1 to 4.

8. the server transmits to the storage battery pack an instruction to update schedule information indicating a timing for charging or discharging the storage battery pack, the schedule information being included in the charge / discharge information, in an emergency; the storage battery pack updates the schedule information included in the charge / discharge information based on the instruction. The battery management system according to claim 7.

9. The information terminal is a mobile terminal. The battery management system according to any one of claims 1 to 8.

10. The server is a dedicated terminal. The battery management system according to any one of claims 1 to 9.

11. The first control unit transmits a command based on charging capacity information as the execution information to the power control device. The battery management system according to any one of claims 1 to 10.

12. The power control device performs both charging and discharging of the storage battery pack as the power control. The battery management system according to any one of claims 1 to 11.

13. The power control device includes: an input unit to which a first power for charging the storage battery pack is input; an output unit that outputs a second electric power obtained by discharging the storage battery pack; The output unit includes a switching unit that switches between outputting the first power input to the input unit as is or outputting the second power. The battery management system according to claim 12.

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