Charging device, electronic equipment, charging system, charging method and communication method

Abstract

The charging device includes: a charging unit that charges an electronic device; a remaining power value information acquisition unit that acquires information on a remaining power value of a storage battery provided in the device; an electronic device information acquisition unit that acquires electronic device information from a plurality of electronic devices by wireless communication, the electronic device information including identification information of the electronic devices and information on a battery remaining capacity value of a battery provided in the electronic devices; a charging target information acquisition unit that acquires charging target information, which includes at least identification information of a charging target device, when the charging target device among the plurality of electronic devices is connected to the charging unit; and a charging management unit that generates charging information including a charging priority related to charging of the device to be charged, on the basis of the information on the remaining power value, the electronic device information, and the identification information included in the information to be charged.

Description

Technical Field

[0001] The present application relates to a charging device, an electronic device, a charging system, a charging method, and a communication method. Background Art

[0002] There is known a technique of performing charging according to the conditions of each electronic device in a state where a plurality of electronic devices are connected (for example, refer to Patent Document 1).

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2011-135679 Summary of the Invention

[0006] The technique described in Patent Document 1 determines the state of the electronic device connected to the charging device and performs charging. Therefore, in the prior art, when a plurality of electronic devices are connected to the charging device, it may be difficult to achieve appropriate charging.

[0007] An object of the present application is to provide a charging device, an electronic device, a charging system, a charging method, and a communication method capable of efficiently charging a management target electronic device.

[0008] The charging device of the present application includes: a charging unit that charges an electronic device; a remaining power value information acquisition unit that acquires information on the remaining power value of a storage battery provided in the present device; an electronic device information acquisition unit that acquires electronic device information from a plurality of electronic devices through wireless communication, the electronic device information including identification information of the electronic device and information on the remaining battery charge value of a battery provided in the electronic device; a charging target information acquisition unit that acquires charging target information when a charging target device among the plurality of electronic devices is connected to the charging unit, the charging target information including at least identification information of the charging target device; and a charging management unit that generates charging information based on the information on the remaining power value, the electronic device information, and the identification information included in the charging target information, the charging information including a charging priority related to charging of the charging target device.

[0009] The electronic device of the present application includes: a location information acquisition unit that acquires the location information of the present device; a remaining battery power information acquisition unit that acquires information on the remaining battery power value of the battery provided in the present device; a communication unit that monitors communication signals including the identifier of the other device and the location information of the other device during communication between multiple other devices; a communication control unit that controls the communication unit to send a communication signal including the identifier of the present device and information on the remaining battery power value of the present device; and a transmission destination determination unit that, when the remaining battery power value of the present device is less than a preset threshold, selects, based on the location information of the present device and the location information of the other device at the time point when the remaining battery power value of the present device is less than the threshold, the other device with the smallest distance from the present device as the transmission destination other device, and the communication control unit determines the transmission power value of the communication unit based on the distance from the transmission destination other device, and sends a notification signal including the identifier of the present device and information on the remaining battery power value of the present device from the communication unit to the transmission destination other device at the transmission power value.

[0010] The charging system of the present application includes a charging device; and a plurality of electronic devices capable of communicating with the charging device. The charging device includes: a charging unit that charges the electronic device; a remaining power value information acquisition unit that acquires information on the remaining power value of the storage battery provided in the present device; an electronic device information acquisition unit that acquires electronic device information from the plurality of electronic devices through wireless communication, the electronic device information including the identification information of the electronic device and information on the remaining battery power value of the battery provided in the electronic device; a charging target information acquisition unit that acquires charging target information when a charging target device among the plurality of electronic devices is connected to the charging unit, the charging target information including at least the identification information of the charging target device; and a charging management unit that generates charging information including a charging priority related to the charging of the charging target device based on the remaining power value information, the electronic device information, and the identification information included in the charging target information.

[0011] The charging method of the present application includes the following steps: obtaining information on the remaining power value of the storage battery equipped in this device; obtaining electronic device information from multiple electronic devices through wireless communication, where the electronic device information includes the identification information of the electronic device and information on the remaining battery power value of the battery equipped in the electronic device; when the charging target device among the multiple electronic devices is connected to the charging unit for charging, obtaining charging target information, where the charging target information includes the identification information of the charging target device and the remaining battery power value information; and generating charging information based on the information on the remaining power value, the electronic device information, and the identification information included in the charging target information, where the charging information includes the charging priority related to the charging of the charging target device.

[0012] The communication method of the present application includes the following steps: obtaining the location information of this device; obtaining information on the remaining battery power value of the battery equipped in this device;

[0013] listening through the communication unit for a communication signal sent by another device that includes the identifier of the other device and the location information of the other device; controlling the communication unit to send a communication signal that includes the identifier of this device and information on the remaining battery power value of this device; when the remaining battery power value of this device is less than a preset threshold, based on the location information of this device and the location information of the other device at the time point when the remaining battery power value of this device is less than the threshold, selecting the other device with the smallest distance from this device as the destination other device for sending; and determining the transmission power value of the communication unit based on the distance from the destination other device, and sending a notification signal from the communication unit to the destination other device at the transmission power value, where the notification signal includes the identifier of this device and information on the remaining battery power value of this device.

[0014] The present application can appropriately charge multiple electronic devices. Description of the Drawings

[0015] Figure 1 is a diagram showing a configuration example of the charging system according to the first embodiment.

[0016] Figure 2 is a diagram for explaining the processing outline of the charging system according to the first embodiment.

[0017] Figure 3 is a block diagram showing a configuration example of the charging device according to the first embodiment.

[0018] Figure 4 is a diagram for explaining the connection method between the charging device and the electronic device according to the first embodiment.

[0019] Figure 5 It is a diagram showing an example of electronic device information of the first embodiment.

[0020] Figure 6 It is a flowchart showing the process of acquiring electronic device information of the first embodiment.

[0021] Figure 7 It is a flowchart showing the process of charging management processing of the first embodiment.

[0022] Figure 8 It is a flowchart showing the process of charging management processing of the second embodiment.

[0023] Figure 9 It is a flowchart showing the process of charging management processing of the third embodiment.

[0024] Figure 10 It is a block diagram showing a configuration example of a charging device of the fourth embodiment.

[0025] Figure 11 It is a flowchart showing the process of notification processing of the fourth embodiment.

[0026] Figure 12 It is a block diagram showing a configuration example of an electronic device of the fifth embodiment.

[0027] Figure 13 It is a timing diagram showing the process of a charging system process of the fifth embodiment.

[0028] Figure 14 It is a flowchart showing the process of a first process of an electronic device of the fifth embodiment.

[0029] Figure 15 It is a flowchart showing the process of a second process of an electronic device of the fifth embodiment.

[0030] Figure 16 It is a block diagram showing a configuration example of a modified example of an electronic device of the fifth embodiment. Detailed Embodiments

[0031] Hereinafter, embodiments of the present application will be described in detail with reference to the drawings. It should be noted that the following embodiments do not limit the present application, and the same parts are denoted by the same reference numerals in each embodiment and repeated descriptions are omitted.

[0032] First Embodiment

[0033] Use Figure 1 To describe a configuration example of the charging system of the first embodiment. Figure 1 It is a diagram showing a configuration example of the charging system of the first embodiment.

[0034] As shown Figure 1 in FIG. 1, the charging system 1 includes a charging device 10 and a plurality of electronic devices 12.

[0035] The charging device 10 is a device for charging the battery of the electronic device 12. The charging device 10 can be, for example, a portable charging device for outdoor use, but is not limited thereto. The charging device 10 has a communication function capable of communicating with the electronic device 12.

[0036] The electronic device 12 is an electronic device having a communication function capable of communicating with the charging device 10. The electronic device 12 can be, for example, a business-use wireless communication terminal, a smart phone, a tablet terminal, a mobile phone, etc., but is not limited thereto.

[0037] The charging device 10 and the electronic device 12 are connected via the network N in a communicable manner. The network N is a wireless communication network, the Internet, a mobile phone network, etc., but is not limited thereto.

[0038] Figure 2 FIG. 2 is a diagram for explaining the outline of the charging system process of the first embodiment. In Figure 2 the example shown in FIG. 2, as the electronic device 12, a wireless terminal 12a and a wireless terminal 12b are shown. The wireless terminal 12a transmits a transmission signal 13 to the wireless terminal 12b to start communication with the wireless terminal 12b. At this time, the wireless terminal 12a includes electronic device information in the transmission signal 13, and the electronic device information includes: a terminal ID for self-identification, and battery remaining power information related to the remaining power of the battery.

[0039] The charging device 10 continuously monitors the transmission signal 13, thereby obtaining the battery remaining power information of the wireless terminal 12a included in the transmission signal 13. Alternatively, the wireless terminal 12a may transmit the transmission signal 13 to the charging device 10. The charging device 10 obtains the battery remaining power information from each wireless terminal, and determines the charging priority of the wireless terminal 12a and the wireless terminal 12b, and the charging priority indicates the priority order of charging. Thus, the charging device 10 can appropriately charge the wireless terminal 12a and the wireless terminal 12b.

[0040] [Charging Device]

[0041] Use Figure 3 to illustrate a configuration example of the charging device according to the first embodiment. Figure 3 FIG. 3 is a diagram showing a configuration example of the charging device according to the first embodiment.

[0042] As Figure 3 shown in FIG. 3, the charging device 10 includes: a charging unit 20, a communication unit 22, a storage unit 24, a display unit 26, an operation unit 28, a measurement unit 30, and a control unit 32.

[0043] The charging unit 20 is configured to charge the battery of the electronic device 12 connected to the charging device 10. The charging unit 20 includes a battery (storage battery) or the like that stores electric power for charging the electronic device 12. Figure 4 This is a diagram for explaining the connection method between the charging device and the electronic device according to the first embodiment. As Figure 4 shown, the charging device 10 is connected to the wireless terminal 12a through, for example, a connection cable 14. The charging unit 20 supplies power to the battery of the wireless terminal 12a via the connection cable 14, thereby charging the battery of the wireless terminal 12a. In addition, the charging unit 20 may also be configured to charge the electronic device 12 in a non-contact manner by bringing the electronic device 12 close to the charging device 10, but it is not limited thereto.

[0044] The communication unit 22 is a communication interface that performs communication between the charging device 10 and an external device. For example, the communication unit 22 performs communication between the charging device 10 and the electronic device 12.

[0045] The storage unit 24 stores various types of information. The storage unit 24 stores information such as the operation content and programs of the control unit 32. The storage unit 24 includes, for example, at least one of main storage devices such as RAM (Random Access Memory) and ROM (Read Only Memory), or external storage devices such as HDD (Hard Disk Drive).

[0046] The storage unit 24 stores electronic device information 24a. Figure 5 This is a diagram showing an example of the electronic device information according to the first embodiment. As Figure 5 shown, the electronic device information 24a includes fields such as "terminal ID", "remaining battery level", and "update time".

[0047] The "terminal ID" is identification information that uniquely identifies the electronic device 12. The "remaining battery level" represents battery remaining power information related to the remaining battery level of the battery of the corresponding electronic device 12. The "update time" represents the date and time when the battery remaining power information is obtained from the corresponding electronic device 12. For example, at 10:30:24 on January 20, 2023, the remaining battery level of the electronic device 12 with a terminal ID of 1 is 80% of full charge.

[0048] The display unit 26 displays various types of images. The display unit 26 is, for example, a liquid crystal display or a display including organic EL (electroluminescence).

[0049] The operation unit 28 receives various operation inputs for the charging device 10. For example, the operation unit 28 receives from the user an operation to start charging the electronic device 12. The operation unit 28 is implemented by a switch, a button, a touch panel, etc.

[0050] The measurement unit 30 measures the remaining power value of the charging device 10.

[0051] The control unit 32 controls each part of the charging device 10. The control unit 32 includes information processing devices such as a CPU (Central Processing Unit) and an MPU (Micro Processing Unit), and storage devices such as a RAM (Random Access Memory) or a ROM (Read Only Memory). The control unit 32 executes a program for controlling the operation of the charging device 10. The control unit 32 can be implemented by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). The control unit 32 can also be implemented by a combination of hardware and software.

[0052] The control unit 32 includes: a charging control unit 40, a communication control unit 42, an operation control unit 44, a remaining power value information acquisition unit 46, an electronic device information acquisition unit 48, a charging target information acquisition unit 50, and a charging management unit 52.

[0053] The charging control unit 40 controls the operation of the charging unit 20. The charging control unit 40 controls the charging unit 20 to charge the battery of the electronic device 12 connected to the charging unit 20.

[0054] The communication control unit 42 controls the communication unit 22 to control the communication between the charging device 10 and an external device. For example, the communication control unit 42 controls the communication unit 22 to receive a transmission signal sent by the electronic device 12. For example, the communication control unit 42 controls the communication unit 22 to send a transmission signal to the electronic device 12.

[0055] The operation control unit 44 receives various operation information received by the operation unit 28. For example, the operation control unit 44 receives a charging start operation received by the operation unit 28 for starting the charging of the electronic device 12.

[0056] The remaining power value information acquisition unit 46 acquires remaining power value information related to the remaining power value of the battery of the charging device 10. For example, the remaining power value information acquisition unit 46 acquires the remaining power value information of the battery of the charging device 10 from the measurement unit 30.

[0057] The electronic device information acquisition unit 48 acquires electronic device information including the identification information and the remaining battery power information of the plurality of electronic devices 12 through wireless communication. For example, the electronic device information acquisition unit 48 acquires the electronic device information included in the transmission signal received by the communication unit 22 from the electronic device 12. The electronic device information acquisition unit 48 associates the identification information, the remaining battery power information, and the acquisition date and time of the identification information and the remaining battery power information, and stores them as the electronic device information 24a in the storage unit 24.

[0058] The charging target information acquisition unit 50 determines the electronic device 12 connected to the charging unit 20 among the plurality of electronic devices 12 as the charging target device. The charging target information acquisition unit 50 acquires charging target information including the identification information and the remaining battery power information of the charging target device via the connection cable 14 (see Figure 4 ).

[0059] Based on the remaining power value information acquired by the remaining power value information acquisition unit 46, the electronic device information 24a stored in the storage unit 24, and the charging target information acquired by the charging target information acquisition unit 50, the charging management unit 52 determines the charging priority related to the charging of each electronic device 12. For example, the charging management unit 52 determines that the lower the remaining battery power of the electronic device 12, the higher the charging priority. Based on the remaining power value information acquired by the remaining power value information acquisition unit 46, the electronic device information 24a stored in the storage unit 24, and the charging target information acquired by the charging target information acquisition unit 50, the charging management unit 52 generates charging information including the charging priority related to the charging of the charging target device. The charging management unit 52 presents the generated charging information to the user.

[0060] (Electronic device information acquisition process)

[0061] Use Figure 6 to describe the electronic device information acquisition process of the first embodiment. Figure 6 is a flowchart showing the process of the electronic device information acquisition process of the first embodiment.

[0062] The communication control unit 42 controls the communication unit 22 to receive the transmission signal transmitted by the electronic device 12 (step S10). Subsequently, it proceeds to step S12.

[0063] The electronic device information acquisition unit 48 acquires the electronic device information (step S12). Specifically, the electronic device information acquisition unit 48 acquires the electronic device information of the electronic device 12 included in the transmission signal received by the communication unit 22. Subsequently, it proceeds to step S14.

[0064] The electronic device information acquisition unit 48 associates the acquired electronic device information with the acquisition date and time and stores it in the electronic device information 24a in the storage unit 24 (step S14). Subsequently, the Figure 6 processing ends.

[0065] (Charging management processing)

[0066] Use Figure 7 to describe the charging management processing of the first embodiment. Figure 7 FIG. is a flowchart showing the flow of the charging management processing of the first embodiment.

[0067] The charge target information acquisition unit 50 detects a charge target device among a plurality of electronic devices 12 (step S20). Specifically, the charge target information acquisition unit 50 detects the electronic device 12 connected to the charging unit 20 as the charge target device. Subsequently, it proceeds to step S22.

[0068] The charge target information acquisition unit 50 acquires charge target information including identification information and battery remaining power information from the charge target device (step S22). Subsequently, it proceeds to step S24.

[0069] The charge management unit 52 updates the electronic device information stored in the storage unit 24 (step S24). Specifically, the charge management unit 52 updates the battery remaining power of the electronic device 12 with the same terminal ID as the charge target information to the battery remaining power included in the charge target information. Subsequently, it proceeds to step S26.

[0070] The charge target information acquisition unit 50 determines the charging priority of the charge target device (step S26). Subsequently, it proceeds to step S28.

[0071] The charge management unit 52 displays charging information including the charging priority of the charge target device on the display unit 26 (step S28). Specifically, the charge management unit 52 displays charging information on the display unit 26 to prompt the user to stop charging the charge target device. For example, the charge management unit 52 displays a string such as "There is an electronic device 12 with a higher charging priority than the charge target device. Do you want to start charging?" on the display unit 26. For example, the charge management unit 52 can display charging information on the display unit 26, which includes information related to the electronic device 12 with a battery remaining power less than that of the charge target device and information related to the remaining power value of the charging device 10. For example, the charge management unit 52 displays a string such as "There are also three electronic devices 12 with a low battery remaining power. The electronic device 12 with the least battery remaining power is the electronic device 12 with terminal ID 2, and the battery remaining power is 20%. There is still enough power in this device to fully charge 2 electronic devices 12. Are you sure you want to start charging?" on the display unit 26.

[0072] The operation control unit 44 determines whether the operation unit 28 has received a charging start operation from the user (step S30). If it is determined that the charging start operation has been received (step S30: Yes), the process proceeds to step S32; if the charging start operation has not been received (step S30: No), the process ends. Figure 7 That is, in the first embodiment, when the user does not input a charging start operation through the operation unit 28 or inputs an operation to abort charging through the operation unit 28, charging of the device to be charged is not performed, and the process ends. Figure 7 By stopping charging of the electronic device 12 with a lower charging priority, the remaining power in the battery of the charging device 10 is effectively utilized for the electronic device 12 with a higher charging priority.

[0073] If it is determined as "Yes" in step S30, the charging control unit 40 starts charging the device to be charged according to the charging start operation received by the operation unit 28 from the user (step S32). Subsequently, the process proceeds to step S34.

[0074] The charging control unit 40 determines whether the charging of the device to be charged is completed (step S34). For example, when the device to be charged is fully charged, the charging control unit 40 determines that the charging of the device to be charged is completed. If it is determined that the charging of the device to be charged is completed (step S34: Yes), the process proceeds to step S36. If it is determined that the charging of the device to be charged is not completed (step S34: No), the process of step 4 is repeated.

[0075] If it is determined as "Yes" in step S34, the charging management unit 52 updates the electronic device information 24a stored in the storage unit 24 (step S36). Specifically, the charging management unit 52 updates the remaining battery power of the electronic device 12 with the same terminal ID and charging target information to the remaining battery power after charging. Subsequently, the process ends. Figure 7 of the process.

[0076] As described above, in the first embodiment, after presenting charging information including the charging priority of the device to be charged to the user, charging of the device to be charged is started only when a charging start operation is received from the user. Thus, the first embodiment can appropriately charge multiple electronic devices.

[0077] Modification Example of the First Embodiment

[0078] In the first embodiment, the charging device 10 displays charging information through the display unit 26. However, the information displayed by the display unit 26 is not limited to charging information.

[0079] For example, the charging device 10 can display, on the display unit 26, the electronic device information 24a stored in the storage unit 24 in response to a user operation. Thus, the user can understand the remaining battery levels of the respective electronic devices 12. Therefore, the user of the electronic device 12 with a low remaining battery level can be urged to charge the electronic device 12. As a result, the modified example of the first embodiment can also appropriately charge a plurality of electronic devices.

[0080] Second Embodiment

[0081] (Charging Management Process)

[0082] Use Figure 8 Describe the charging management process of the second embodiment. Figure 8 is a flowchart showing the process of the charging management process of the second embodiment. The configuration of the charging device of the second embodiment is the same as that of the Figure 3 charging device 10 shown, and thus the description thereof is omitted.

[0083] The processes of steps S40 to S46 are respectively the same as those of the Figure 7 steps S20 to S26 shown, and thus the description thereof is omitted.

[0084] The charging management unit 52 determines whether the state of the device to be charged satisfies a predetermined condition (step S48). For example, the charging management unit 52 can determine whether the charging priority of the device to be charged is the highest. For example, the charging management unit 52 can determine whether the charging priority of the device to be charged is above a predetermined order. For example, the charging management unit 52 can determine whether the remaining battery level of the device to be charged is below a predetermined value. Whether the charging priority is above a predetermined order and whether the remaining battery level is below a predetermined value can be changed according to the remaining power value of the battery of the charging device 10. For example, the smaller the remaining power value of the battery of the charging device 10, the more the charging priority can be raised above a predetermined order, or the remaining battery level can be reduced below a predetermined value. When it is determined that the state of the device to be charged satisfies the predetermined condition (step S48: Yes), the process proceeds to step S50. If it is determined that the state of the device to be charged does not satisfy the predetermined condition (step S48: No), the process proceeds to step S52.

[0085] When it is determined as "Yes" in step S48, the charging control unit 40 automatically starts charging the device to be charged (step S50). That is, in the second embodiment, when the state of the device to be charged satisfies a predetermined condition, charging of the device to be charged can be automatically started without a user's start charging operation. Subsequently, the process proceeds to step S58.

[0086] The processes of steps S52 to S60 are respectively the same as those of the Figure 7The processing from step S28 to step S36 shown above is the same, so the description thereof is omitted.

[0087] As described above, in the second embodiment, charging of the device to be charged is automatically started when the state of the device to be charged satisfies a predetermined condition. In addition, in the second embodiment, when the state of the object does not satisfy the predetermined condition, after presenting charging information including the charging priority of the device to be charged to the user, charging of the device to be charged is started only when a charging start operation is received from the user. Thus, the second embodiment can charge multiple electronic devices more appropriately.

[0088] Third Embodiment

[0089] (Charging Management Processing)

[0090] Use Figure 9 to describe the charging management processing of the third embodiment. Figure 9 is a flowchart showing the flow of the charging management processing of the third embodiment. The configuration of the charging device in the third embodiment is the same as that of Figure 3 the charging device 10 shown, so the description thereof is omitted.

[0091] The processing from step S70 to step S80 is respectively the same as that of Figure 8 the steps S40 to S50 shown, so the description thereof is omitted.

[0092] The charging management unit 52 displays charging information including information that the device to be charged is not currently being charged on the display unit 26 (step S82). Specifically, the charging management unit 52 displays a string such as "The state of the device to be charged does not satisfy the predetermined condition, so it is not currently being charged" on the display unit 26. Subsequently, the Figure 9 processing ends. That is, in the third embodiment, when the state of the device to be charged does not satisfy the predetermined condition, the battery of the charging device is not charged, and the Figure 9 processing ends.

[0093] The processing from step S84 to step S86 is respectively the same as that of Figure 8 the steps S58 to S60 shown, so the description thereof is omitted.

[0094] As described above, in the third embodiment, when the state of the device to be charged satisfies the predetermined condition, charging of the device to be charged is automatically started. In addition, in the third embodiment, when the state of the object does not satisfy the predetermined condition, charging of the device to be charged is automatically aborted. Thus, the third embodiment can charge multiple electronic devices more appropriately.

[0095] Fourth Embodiment

[0096] (Charging Device)

[0097] Use Figure 10 To illustrate a configuration example of the charging device of the fourth embodiment. Figure 10 It is a block diagram showing a configuration example of the charging device of the fourth embodiment.

[0098] As Figure 10 shown, the charging device 10A is different from the charging device 10 shown in that the notification unit 54 is provided in the control unit 32A. Figure 3 shown in that the notification unit 54 is provided in the control unit 32A.

[0099] The notification unit 54 notifies various information to the electronic device 12 via the communication unit 22. For example, the notification unit 54 notifies the electronic device 12 that needs to be charged of information urging charging via the communication unit 22.

[0100] (Notification Processing)

[0101] Use Figure 11 , to illustrate the notification processing of the fourth embodiment. Figure 11 It is a flowchart showing the process of the notification processing of the fourth embodiment.

[0102] The processes of steps S90 to S94 are the same as the processes of steps S10 to S14 shown respectively, so the description is omitted. Figure 6 shown respectively, so the description is omitted.

[0103] The charging management unit 52 determines whether there is an electronic device 12 with a remaining battery power of a predetermined level or less (step S96). Specifically, the charging management unit 52 determines whether there is an electronic device with a remaining battery power of a predetermined level or less based on the remaining power value of the battery of the charging device 10 and the electronic device information 24a stored in the storage unit 24. If it is determined that there is an electronic device 12 with a remaining battery power of a predetermined level or less (step S96: Yes), the process proceeds to step S98. If it is not determined that there is an electronic device 12 with a remaining battery power of a predetermined level or less (step S96: No), the Figure 11 processing ends.

[0104] If it is determined to be "Yes" in step S96, the notification unit 54 notifies the electronic device 12 with a remaining battery power of a predetermined level or less of information indicating that it should be charged (step S98). Specifically, for example, the notification unit 54 notifies the electronic device 12 of information for displaying a string such as "The remaining battery power has decreased. Please charge" on the display unit of the electronic device 12. For example, the notification unit 54 may also notify the electronic device 12 of information including that the remaining power value of the battery of the charging device 10 is below a predetermined value and it may not be possible to charge. Then, the Figure 11 processing ends.

[0105] As described above, the fourth embodiment notifies the electronic device 12 with a remaining battery level equal to or less than a predetermined level of the information indicating that charging should be performed. Thus, the user of the electronic device 12 with a remaining battery level equal to or less than a predetermined level can recognize that the electronic device 12 in use needs to be charged, and thus can appropriately charge the electronic device 12 with a small remaining battery level.

[0106] Fifth Embodiment

[0107] The fifth embodiment will be described. According to the foregoing embodiments, the charging device intercepts a communication signal between electronic devices including the remaining battery level information, for example, a transmission signal based on a call, to obtain the remaining battery level information of the electronic device. That is, communication solely for obtaining the remaining battery level information does not occur. Thus, the battery of the electronic device is not consumed for notifying the remaining battery level information to the charging device. On the other hand, the charging device cannot obtain the remaining battery level information of an electronic device that infrequently communicates with other electronic devices. In particular, if the charging device can obtain without omission the remaining battery level information of an electronic device with a decreasing remaining battery level, it is expected that each electronic device can be managed more appropriately. Therefore, in the fifth embodiment, in an electronic device in which the remaining battery level has decreased to less than a predetermined threshold, a unit is provided that suppresses the consumption of the battery of the electronic device and provides the remaining battery level information to the charging device.

[0108] (Electronic device)

[0109] Use Figure 12 , a configuration example of the electronic device according to the fifth embodiment will be described. Figure 12 FIG. is a block diagram showing a configuration example of the electronic device according to the fifth embodiment.

[0110] As Figure 12 shown, the electronic device 12 includes an input unit 60, a voice input unit 62, a display unit 64, a voice output unit 66, a communication unit 68, a storage unit 70, a GNSS (Global Navigation Satellite System) reception unit 72, and a control unit 74.

[0111] The input unit 60 accepts various operations on the electronic device 12. The input unit 60 is implemented by various input devices such as switches, buttons, and touch panels.

[0112] The voice input unit 62 detects the voice of the user using the electronic device 12. The voice input unit 62 converts the detected voice into a voice signal. The voice input unit 62 is implemented by a microphone.

[0113] The display unit 64 displays various types of information. The display unit 64 is implemented by a display such as a liquid crystal display or an organic EL (Electro-Luminescence) display, for example.

[0114] The sound output unit 66 is a speaker that outputs various sounds. The sound output unit 66 outputs, for example, the sound of the communication partner.

[0115] The communication unit 68 is a communication interface that performs communication between the electronic device 12 and an external device. The communication unit 68 performs communication between the electronic device 12 and the charging device 10, for example. The communication unit 68 performs communication between the electronic device 12 and other electronic devices 12, for example. The communication unit 68 monitors the communication signals of the voice communication performed between other electronic devices 12. The communication signals are, for example, voice signals or data signals. The communication unit 68 is implemented by long-distance wireless communication, wireless LAN, Wi-Fi (registered trademark), etc., for example.

[0116] The storage unit 70 stores various types of information. The storage unit 70 stores information indicating a threshold value of the remaining battery power, for example. The storage unit 70 stores the location information of other electronic devices 12, for example. The storage unit 70 stores information such as the calculation content and programs of the control unit 74. The storage unit 70 includes at least one of a main storage device such as a RAM and a ROM, and an external storage device such as an HDD, for example.

[0117] The GNSS receiving unit 72 is composed of a GNSS receiver that receives GNSS signals from GNSS satellites, etc. The GNSS receiving unit 72 outputs the GNSS signals received regularly to the location information acquisition unit 80 of the control unit 74.

[0118] The control unit 74 controls each unit of the electronic device 12. The control unit 74 has an information processing device such as a CPU and an MPU, and a storage device such as a RAM or a ROM, for example. The control unit 74 executes a program for controlling the operation of the electronic device 12 of the present application. The control unit 74 can also be implemented by an integrated circuit such as an ASIC or an FPGA, for example. The control unit 74 can also be implemented by a combination of hardware and software.

[0119] The control unit 74 includes: a location information acquisition unit 80, an other device information acquisition unit 82, a remaining battery power information acquisition unit 84, a transmission destination determination unit 86, and a communication control unit 88.

[0120] The location information acquisition unit 80 acquires the current location information of the electronic device 12 as the device itself. Specifically, the location information acquisition unit 80 acquires the current location information of the electronic device 12 based on the GNSS signals received by the GNSS receiving unit 72.

[0121] The other device information acquisition unit 82 acquires various information of the other electronic device 12 that is another device. The other device information acquisition unit 82 acquires an identifier of the other electronic device 12, location information, battery remaining power information indicating the remaining battery power, etc. included in a sound signal or the like transmitted by the other electronic device 12 monitored by the communication unit 68. The other device information acquisition unit 82 stores the identifier of the other electronic device 12 and the location information of the other electronic device 12 in the storage unit 70 in a corresponding manner.

[0122] The battery remaining power information acquisition unit 84 acquires battery remaining power information indicating the current remaining battery power of the electronic device 12. The battery remaining power information acquisition unit 84 determines whether the remaining battery power of the electronic device 12 is less than a preset threshold based on the acquired battery remaining power information.

[0123] The transmission destination determination unit 86 determines the other electronic device 12 that becomes the transmission destination of the battery remaining power information of this device. When there are multiple other electronic devices 12, the transmission destination determination unit 86 determines the other electronic device 12 closest to this device as the transmission destination based on the location information of this device acquired by the location information acquisition unit 80 and the location information of the multiple other electronic devices 12 stored in the storage unit 70.

[0124] The communication control unit 88 controls the communication unit 68 to perform communication with an external device. For example, when making a voice call with the other electronic device 12, the communication control unit 88 causes the communication unit 68 to transmit a communication signal to the other electronic device 12 with a normal transmission output, and the communication signal includes an identifier of this device, the location information detected by the location information acquisition unit 80, and the battery remaining power information acquired by the battery remaining power information acquisition unit 84. For example, when the remaining battery power of this device is less than the threshold, the communication control unit 88 causes the communication unit 68 to transmit an information transfer request signal (notification signal) with a minimum transmission output necessary for transmission to the other electronic device 12 determined by the transmission destination determination unit 86, and the information transfer request signal includes an identifier of this device and the battery remaining power information acquired by the battery remaining power information acquisition unit 84.

[0125] (Processing of the charging system)

[0126] Use Figure 13 , the processing flow of the charging system of the fifth embodiment will be described. Figure 13 is a timing chart showing the processing flow of the charging system according to the fifth embodiment.

[0127] Figure 13Shows the processing of the charging device 10, the first electronic device 12-1, the second electronic device 12-2, and the third electronic device 12-3. Specifically, Figure 13 Shows the processing in which the third electronic device 12-3 sends the remaining battery power information when the first electronic device 12-1 and the second electronic device 12-2 are in a voice call. The structures of the first electronic device 12-1, the second electronic device 12-2, and the third electronic device 12-3 are the same as Figure 12 the electronic device 12 shown.

[0128] In the communication between the first electronic device 12-1 and the second electronic device 12-2, the communication signal (voice signal or data signal) sent to the second electronic device 12-2 includes the identifier of the first electronic device 12-1, the current remaining battery power information of the first electronic device 12-1, and the current location information of the first electronic device 12-1 and is sent (step S100).

[0129] The charging device 10 listens to the communication signal sent by the first electronic device 12-1 to the second electronic device 12-2, obtains the identifier of the first electronic device 12-1 and the remaining battery power information of the first electronic device 12-1, and stores them in the electronic device information 24a of the storage unit 24 (step S102).

[0130] The third electronic device 12-3 listens to the communication signal sent by the first electronic device 12-1 to the second electronic device 12-2, obtains the identifier of the first electronic device 12-1 and the location information of the first electronic device 12-1, and stores them in the storage unit 70 (step S104).

[0131] In the communication between the second electronic device 12-2 and the first electronic device 12-1, the communication signal sent to the first electronic device 12-1 includes the identifier of the second electronic device 12-2, the current remaining battery power information of the second electronic device 12-2, and the current location information of the second electronic device 12-2 and is sent (step S106).

[0132] The charging device 10 listens to the communication signal sent by the second electronic device 12-2 to the first electronic device 12-1, obtains the identifier of the second electronic device 12-2 and the remaining battery power information of the second electronic device 12-2, and stores them in the electronic device information 24a of the storage unit 24 (step S108).

[0133] The third electronic device 12-3 listens to the communication signal sent by the second electronic device 12-2 to the first electronic device 12-1, obtains the identifier of the second electronic device 12-2 and the location information of the second electronic device 12-2, and stores them in the storage unit 70 (step S110).

[0134] The third electronic device 12-3 determines that the remaining battery power of the third electronic device 12-3 is less than the threshold value (step S112). For example, the remaining battery power value predicted to be unable to transmit to other electronic devices for more than 5 minutes at the normal transmission power value is set as the threshold value.

[0135] Based on the location information of its own device, the location information of the first electronic device 12-1 and the second electronic device 12-2 obtained, the third electronic device 12-3 determines that the distance from the third electronic device 12-3 to the second electronic device 12-2 is shorter than the distance from the third electronic device 12-3 to the first electronic device 12-1 (step S114). The third electronic device 12-3 determines the transmission destination of the remaining battery power information as the second electronic device 12-2 that is closer to its own device (step S116). The third electronic device 12-3 determines the transmission power value when transmitting the remaining battery power information through the communication unit 68 based on the distance to the second electronic device 12-2 (step S118). The transmission power value is determined, for example, as the minimum value required for the communication signal transmitted from the third electronic device 12-3 to be received by the second electronic device 12-2 without problems. For example, the relationship between the transmission power value and the distance at which information can be received without problems between electronic devices is measured in advance and stored in the storage unit 70. The third electronic device 12-3 transmits an information transfer request signal including the identifier of the third electronic device 12-3 and the remaining battery power information of the third electronic device 12-3 as an information transfer request signal designating the second electronic device 12-2 as the destination (step S120).

[0136] In the next communication with the first electronic device 12-1, the second electronic device 12-2 that has received the information transfer request signal transmits, in the communication signal transmitted to the first electronic device 12-1, in addition to including the identifier of the second electronic device 12-2, the current remaining battery power information of the second electronic device 12-2, and the current location information of the second electronic device 12-2, also includes the identifier of the third electronic device received in step S120 and the remaining battery power information of the third electronic device 12-3 (step S122).

[0137] The charging device 10 monitors the communication signal sent by the second electronic device 12-2 to the first electronic device 12-1, obtains the remaining battery power information of the second electronic device 12-2 and the remaining battery power information of the third electronic device 12-3, and stores them in the electronic device information 24a of the storage unit 24 (step S124). Thus, when the remaining battery power of the third electronic device 12-3 is less than the threshold, the consumption of the battery of this device can be suppressed, and the remaining battery power information of the third electronic device 12-3 is sent to the charging device 10. Moreover, the charging device 10 can grasp the situation where the remaining battery power of the third electronic device 12-3 that does not communicate frequently is in short supply.

[0138] The third electronic device 12-3 monitors the communication signal sent by the second electronic device 12-2 to the first electronic device 12-1. When the communication signal contains the identifier of the third electronic device 12-3 and the remaining battery power information of the third electronic device 12-3, it is determined that the remaining battery power information of the third electronic device 12-3 has been sent to the charging device 10 (step S126). Then, the Figure 13 processing ends.

[0139] (First Processing of Electronic Device)

[0140] Use Figure 14 to illustrate the process of the first processing of the electronic device in the fifth embodiment. Figure 14 It is a flowchart showing the process of the first processing of the electronic device in the fifth embodiment.

[0141] Figure 14 It shows the processing performed by the electronic device 12 with the remaining battery power less than the threshold. For example, since the voice call is not frequently made with other electronic devices 12, the electronic device 12 for which the charging device 10 cannot obtain the remaining battery power information performs the processing to notify the charging device 10 that the remaining battery power has decreased.

[0142] The position information acquisition unit 80 detects the current position of the electronic device 12 based on the GNSS signal received by the GNSS reception unit 72 (step S200). Then, it proceeds to step S202.

[0143] The other device information acquisition unit 82 acquires the position information of a plurality of other electronic devices 12 included in the communication signals sent by the plurality of other electronic devices 12 monitored by the communication unit 68 (step S202). Specifically, the other device information acquisition unit 82 acquires the identifiers and position information of the plurality of other electronic devices 12. The other device information acquisition unit 82 stores the identifiers and position information of the plurality of other electronic devices 12 in the storage unit 70 in a corresponding manner. Then, it proceeds to step S204.

[0144] The remaining battery power information acquisition unit 84 detects the current remaining battery power of the electronic device 12 (step S204). Then, it proceeds to step S206.

[0145] The remaining battery power information acquisition unit 84 determines whether the current remaining battery power of the electronic device 12 is less than a preset threshold value (step S206). Specifically, the remaining battery power information acquisition unit 84 determines whether the current remaining battery power of the electronic device 12 is less than a preset threshold value based on the remaining battery power detected by the remaining battery power information acquisition unit 84 and the threshold value of the remaining battery power pre-stored in the storage unit 70. If it is determined that the current remaining battery power is less than the preset threshold value (step S206: Yes), it proceeds to step S208. If it is not determined that the current remaining battery power is less than the preset threshold value (step S206: No), the Figure 14 processing ends.

[0146] The transmission destination determination unit 86 determines the other electronic device 12 located at the position closest to the electronic device 12 based on the current position of the electronic device 12 detected by the position information acquisition unit 80 and the position information of the other electronic device 12 acquired by the other device information acquisition unit 82 (step S208). Then, it proceeds to step S210.

[0147] The transmission destination determination unit 86 determines the other electronic device 12 located at the position closest to the electronic device 12 as the transmission destination of the remaining battery power information of this device (step S210). Then, it proceeds to step S212.

[0148] The transmission destination determination unit 86 determines the transmission method of the remaining battery power information of the electronic device 12 based on the distance to the electronic device 12 that is the transmission destination determined in step S208 (step S212). The transmission destination determination unit 86 determines, for example, the transmission power value of the communication unit 68 based on the distance to the electronic device 12 that is the transmission destination. Then, it proceeds to step S214.

[0149] The communication control unit 88 transmits the identifier and the remaining battery power information of the electronic device 12 as an information transmission request signal, which is a signal designating the electronic device at the transmission destination as the destination (step S214). Then, the Figure 14 processing ends.

[0150] (Second processing of the electronic device)

[0151] Using Figure 15 , the process of the second processing of the electronic device according to the fifth embodiment will be described. Figure 15 is a flowchart showing the process of the second processing of the electronic device according to the fifth embodiment.

[0152] Figure 15 Shows the processing executed when the electronic device 12 that makes a voice call, for example, receives an information transfer request signal sent to this device from another electronic device 12 other than the voice call object, the information transfer request signal including the identifier of the other electronic device 12 and the remaining battery power information.

[0153] The position information acquisition unit 80 detects the current position of the electronic device 12 based on the GNSS signal received by the GNSS reception unit 72 (step S220). Then, it proceeds to step S222.

[0154] The remaining battery power information acquisition unit 84 detects the current remaining battery power of the electronic device 12 (step S222). Then, it proceeds to step S228.

[0155] The communication control unit 88 determines whether it has received, by any communication method provided in the communication unit 68, an information transfer request signal sent to this device from another electronic device 12, the information transfer request signal including the identifier of the other electronic device 12 and the remaining battery power information (step S228). When it is determined that the information transfer request signal has been received from the other electronic device 12 (step S228: Yes), it proceeds to step S230. When it is not determined that the information transfer request signal has been received from the other electronic device 12 (step S228: No), it proceeds to step S232.

[0156] When it is determined as "Yes" in step S230, the communication control unit 88 sends the following communication signal to the other electronic device 12 that is the communication destination. The communication signal includes, in addition to the identifier of this device, the current position information of this device, and the remaining battery power information of this device, the identifier of the other electronic device 12 and the remaining battery power information included in the information transfer request signal sent to this device from the other electronic device 12 (step S230). The communication signal sent in step S230 is, for example, a voice call with the electronic device 12 that is the communication destination. The charging device 10 can acquire the identifier and the remaining battery power information of the electronic device 12 that sent the information transfer request signal by listening to the communication signal sent in step S230. Then, it proceeds to step S234.

[0157] When it is determined as "No" in step S228, the communication control unit 88 sends a communication signal including the identifier of this device, the current position information of this device, and the remaining battery power information of this device to the other electronic device 12 that is the communication destination (step S232). The communication signal sent in step S232 is, for example, a voice call with the electronic device 12 that is the communication destination. Then, it proceeds to step S234.

[0158] The control unit 74 determines whether to end the process (step S234). For example, when the voice call with the communication destination ends, or when an operation to turn off the power is accepted, the control unit 74 determines that the process ends. When it is determined that the process ends (step S234: Yes), the Figure 15 process ends. When it is not determined that the process ends (step S234: No), the process proceeds to step S220 and the process is repeated.

[0159] As described above, in the fifth embodiment, when the remaining battery power of an electronic device other than the electronic device performing the voice call is less than the threshold value, the charging device can acquire the remaining battery power information of the electronic device. Thus, the fifth embodiment can appropriately manage the remaining battery power of the electronic devices included in the charging system.

[0160] Modification example of the fifth embodiment

[0161] (Electronic device)

[0162] Use Figure 16 to describe a configuration example of the electronic device of the modification example of the fifth embodiment. Figure 16 FIG. is a block diagram showing a configuration example of the electronic device of the modification example of the fifth embodiment.

[0163] As Figure 16 shown, the electronic device 12A is different from the Figure 12 shown electronic device 12 in that it includes a first communication unit 68a and a second communication unit 68b.

[0164] The first communication unit 68a is a communication unit that performs long-distance wireless communication. Examples of long-distance wireless communication include, but are not limited to, communication based on digital service radio and communication based on a mobile phone network.

[0165] The second communication unit 68b is a communication unit that performs short-distance wireless communication. Examples of short-distance wireless communication include, but are not limited to, communication based on Wi-Fi (registered trademark) and Bluetooth (registered trademark).

[0166] The transmission destination determination unit 86A of the control unit 74A selects which of the first communication unit 68a and the second communication unit 68b to use to transmit the remaining battery power information. For example, when the distance to another electronic device is within the communication range of the second communication unit 68b, the transmission destination determination unit 86A selects the second communication unit 68b as the communication unit for transmitting the remaining battery power information.

[0167] In Figure 14In step S212, the transmission destination determination unit 86A may also compare the power consumption values of the first communication unit 68a and the second communication unit 68b when transmitting the battery remaining power information, and select either the first communication unit 68a or the second communication unit 68b. Specifically, regarding the first communication unit 68a and the second communication unit 68b, the relationship between the distance at which the electronic device 12 at the transmission destination can receive information without problems and the power consumption value for transmission relative to the transmission power value is measured in advance and stored in the storage unit 70. The transmission destination determination unit 86A determines the communication method with the least power consumption value and the transmission power value according to the distance to the electronic device 12 at the transmission destination.

[0168] As described above, in the modification of the fifth embodiment, by comparing the transmission power values of the first communication unit and the second communication unit, the battery remaining power information can be transmitted to other electronic devices by a method with less power consumption when transmitting the battery remaining power information. Thus, the modification of the fifth embodiment can appropriately transmit the battery remaining power information to other electronic devices even in a state where the remaining battery power is less.

[0169] Each component of each device shown in the figure is a functional concept, and it is not necessarily physically configured as shown in the figure. That is, the specific manner of dispersion and combination of each device is not limited to the manner shown in the figure, and all or part of it can be functionally or physically dispersed and combined in any unit according to various loads, usage conditions, etc. In addition, the configuration based on this dispersion / combination can also be performed dynamically.

[0170] The embodiments of the present application have been described above, but the present application is not limited to the content of these embodiments. In addition, the above-mentioned components include components that can be easily thought of by those skilled in the art, substantially the same components, and components within the so-called equivalent range. And, the above-mentioned components can be appropriately combined. And, various omissions, substitutions, or changes of the components can be made without departing from the gist of the above embodiments.

[0171] This application contributes to the achievement of "specific measures against climate change" of the SDGs (Sustainable Development Goals) and contributes to the reduction of GHG emissions.

[0172] Industrial applicability

[0173] The charging device, electronic device, charging system, charging method, and communication method of the present application can be used for a portable charging device for charging an electronic device with a communication function and an electronic device with a communication function.

[0174] Symbol description

[0175] 1 Charging system

[0176] 10 Charging device

[0177] 12, 12A Electronic device

[0178] 12a, 12b Wireless terminal

[0179] 20 Charging unit

[0180] 22, 68 Communication unit

[0181] 24a Electronic device information

[0182] 26, 64 Display unit

[0183] 28 Operation unit

[0184] 30 Measurement unit

[0185] 32, 74, 74A Control unit

[0186] 40 Charging control unit

[0187] 42 Communication control unit

[0188] 44 Operation control unit

[0189] 46 Remaining power value information acquisition unit

[0190] 48 Electronic device information acquisition unit

[0191] 50 Charging object information acquisition unit

[0192] 52 Charging management unit

[0193] 54 Notification unit

[0194] 60 Input unit

[0195] 62 Voice input unit

[0196] 66 Voice output unit

[0197] 68a First communication unit

[0198] 68b Second communication unit

[0199] 80 Location information acquisition unit

[0200] 82 Other device information acquisition unit

[0201] 84 Battery remaining power information acquisition unit

[0202] 86, 86A Transmission destination determination unit

[0203] 88 Communication control unit

Claims

1. A charging device, comprising: A charging unit for charging an electronic device; A remaining power value information acquisition unit for acquiring information on the remaining power value of a storage battery provided in this device; An electronic device information acquisition unit for acquiring electronic device information from a plurality of electronic devices through wireless communication, the electronic device information including identification information of the electronic device and information on the remaining battery power value of a battery provided in the electronic device; A charging target information acquisition unit for acquiring charging target information when a charging target device among the plurality of electronic devices is connected to the charging unit, the charging target information at least including identification information of the charging target device; And A charging management unit for generating charging information based on the information on the remaining power value, the electronic device information, and the identification information included in the charging target information, the charging information including a charging priority related to the charging of the charging target device.

2. The charging device according to claim 1, wherein The charging management unit compares the plurality of pieces of electronic device information acquired by the charging target information acquisition unit, and if there is another electronic device whose remaining battery power is less than that of the charging target device connected to this device, it is determined that the charging priority of the other electronic device is higher than that of the charging target device, and charging information including the charging power required by the other electronic device is generated based on the remaining battery power value included in the electronic device information.

3. The charging device according to claim 1 or 2, further comprising: A display unit for providing information to the user; An operation unit for receiving an operation by the user; And A charging control unit for controlling the charging of the charging target device, The charging management unit displays the charging target information including the charging priority on the display unit, The charging control unit starts charging the charging target device based on a selection operation received by the operation unit from the user.

4. The charging device according to claim 1 or 2, wherein The charging management unit determines whether the remaining battery power value of the charging target device is less than or equal to a predetermined value based on the electronic device information and the charging target information, The charging device further includes a charging control unit that starts charging the charging target device when the charging management unit determines that the remaining battery power value of the charging target device is less than or equal to the predetermined value.

5. An electronic device, comprising: A position information acquisition unit for acquiring the position information of this device; A remaining battery power information acquisition unit for acquiring information on the remaining battery power value of a battery provided in this device; A communication unit for monitoring a communication signal including an identifier of the other device and the position information of the other device that is communicated between a plurality of other devices; A communication control unit for controlling the communication unit to send a communication signal including the identifier of this device and information on the remaining battery power value of this device; And A transmission destination determination unit, when the remaining battery power value of the present device is less than a preset threshold, selects, based on the location information of the present device and the location information of the other device at the time point when the remaining battery power value of the present device is less than the threshold, the other device with the smallest distance from the present device as the transmission destination other device. The communication control unit determines the transmission power value of the communication unit based on the distance from the transmission destination other device, and transmits a notification signal containing the identifier of the present device and the information of the remaining battery power value of the present device from the communication unit to the transmission destination other device at the transmission power value.

6. A charging system, comprising: A charging device; And a plurality of electronic devices capable of communicating with the charging device, The charging device includes: A charging unit for charging the electronic device; A remaining power value information acquisition unit for acquiring information on the remaining power value of the storage battery provided in the present device; An electronic device information acquisition unit for acquiring electronic device information from a plurality of the electronic devices through wireless communication, the electronic device information including the identification information of the electronic device and the information of the remaining battery power value of the battery provided in the electronic device; A charging target information acquisition unit for acquiring charging target information when a charging target device among the plurality of electronic devices is connected to the charging unit, the charging target information including at least the identification information of the charging target device; and A charging management unit for generating charging information based on the identification information included in the remaining power value information, the electronic device information, and the charging target information, the charging information including a charging priority related to the charging of the charging target device.

7. A charging method, comprising the following steps: Acquiring information on the remaining power value of the storage battery provided in the present device; Acquiring electronic device information from a plurality of electronic devices through wireless communication, the electronic device information including the identification information of the electronic device and the information of the remaining battery power value of the battery provided in the electronic device; When a charging target device among the plurality of electronic devices is connected to the charging unit for charging, acquiring charging target information, the charging target information including the identification information and the remaining battery power value information of the charging target device; And Generating charging information based on the identification information included in the remaining power value information, the electronic device information, and the charging target information, the charging information including a charging priority related to the charging of the charging target device.

8. A communication method, comprising the following steps: Acquiring the location information of the present device; Acquiring information on the remaining battery power value of the battery provided in the present device; Listening, through the communication unit, to a communication signal transmitted by another device and containing the identifier of the other device and the location information of the other device; Controlling the communication unit to transmit a communication signal containing the identifier of the present device and the information of the remaining battery power value of the present device. When the remaining battery power value of the present device is less than a preset threshold value, based on the location information of the present device and the location information of the other device at the time point when the remaining battery power value of the present device is less than the threshold value, select the other device with the smallest distance from the present device as the destination other device for sending; And Determine the transmission power value of the communication unit based on the distance from the destination other device, and send a notification signal from the communication unit to the destination other device at the transmission power value, where the notification signal includes the identifier of the present device and the information of the remaining battery power value of the present device.

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