JP6687257B2 - Power supply device, power supply system, power supply device control method, and power supply device control program - Google Patents

Description

  The present disclosure relates to a power supply device, a power supply system, a power supply device control method, and a power supply device control program.

  Patent Documents 1 to 5 disclose the configurations of devices that monitor the power supply of electrical devices such as routers. For example, Patent Document 1 discloses a configuration of a device that supplies electric power from an electric storage system to an electric device when a commercial power supply fails. Patent Document 2 discloses a configuration of a device that switches a power supply when a sign of failure of a power supply unit is detected. Patent Document 3 discloses the configuration of a device that can control the power supply of a server from a remote location via a line. Patent Document 4 discloses a configuration of a device that activates a backup device when power supply from a commercial power source to a server device is stopped. Patent Document 5 discloses a configuration of a device that supplies power from a power storage unit to a normally functioning power line when power supply from outdoor power is stopped.

International Publication No. 2016/017005 JP, 2014-160326, A JP, 2014-106945, A JP 2012-181606 A JP, 2011-067034, A

  Connecting a wireless communication terminal to the router may allow a user at a remote location to access the router via wireless communication. At this time, a small wireless communication terminal may be used for structural reasons. Many of such small wireless communication terminals are configured to operate by obtaining power from a router. However, when such a wireless communication terminal is used, the power supply of the wireless communication terminal is stopped due to the power failure of the router. Therefore, there is a problem in that it is not possible to notify by wireless communication that a power failure has occurred in the router.

  In view of the above problems, an object of the present disclosure is to provide a power supply device, a power supply system, a power supply device control method, and a power supply device control program capable of notifying a power failure of a router via a wireless communication terminal. It is in.

  A power supply device according to the present disclosure includes a first USB interface unit that can be connected to a router, a second USB interface unit that can be connected to a wireless communication terminal, a detection unit that detects a power supply abnormality of the router, and the detection unit that supplies the power. When an abnormality is detected, a notification unit that notifies the wireless communication terminal of the power supply abnormality via the second USB interface unit, and electricity can be stored from the router via the first USB interface unit, and 2 A power supply unit capable of supplying the stored power to the wireless communication terminal via the USB interface unit.

  A power supply system according to the present disclosure includes a power supply device, the router connected to the power supply device via the first USB interface unit, the router connected to the power supply device via the second USB interface unit, and the detection unit. The wireless communication terminal that performs wireless communication by supplying power from the power supply unit when the power supply abnormality is detected.

  A method of controlling a power supply device according to the present disclosure includes a step of storing power from a router in a power supply section via a first USB interface section, a step of detecting a power failure of the router, and a second USB method when the power failure is detected. Feeding the electric power stored in the power feeding unit to the mobile communication terminal via the interface unit and notifying the power source abnormality.

  A power supply device control program according to the present disclosure includes a step of storing power from a router in a power supply unit via a first USB interface unit, a step of detecting a power supply abnormality of the router, and a second USB when the power supply abnormality is detected. The computer is made to execute the step of supplying the power stored in the power supply section to the mobile communication terminal via the interface section and notifying the power supply abnormality.

  According to the present disclosure, it is possible to provide a power supply device, a power supply system, a power supply device control method, and a power supply device control program capable of notifying a power failure of a router via a wireless communication terminal.

It is a block diagram of the power supply device which concerns on 1st Embodiment. It is a block diagram of the power supply device which concerns on 2nd Embodiment. FIG. 9 is a schematic diagram showing a state of the power supply device according to the second embodiment when the router has no power supply abnormality. FIG. 9 is a schematic diagram showing a state of the power supply device according to the second embodiment when a power failure occurs in the router. It is a flowchart which shows the processing flow of the power supply device which concerns on 2nd Embodiment. It is a block diagram of the power supply device which concerns on 3rd Embodiment.

  Hereinafter, specific embodiments will be described in detail with reference to the drawings. In each drawing, the same or corresponding elements are denoted by the same reference numerals, and duplicated explanations are omitted as necessary for the sake of clarity.

  The plurality of embodiments described below may be implemented independently or may be implemented in combination as appropriate. The plurality of embodiments have novel features different from each other. Therefore, these plurality of embodiments contribute to solving different purposes or problems and contribute to different effects.

[First Embodiment]
First, the first embodiment of the present disclosure will be described using FIG. 1. FIG. 1 is a block diagram of a power supply device 1 according to the first embodiment. As shown in FIG. 1, the power supply device 1 includes a first USB (Universal Serial Bus) interface unit 11, a second USB interface unit 12, a power supply unit 13, a detection unit 14, and a notification unit 15.

  The first USB interface unit 11 can be connected to a router. The second USB interface unit 12 can be connected to a wireless communication terminal. The power supply unit 13 can store electricity from the router via the first USB interface unit 11. Further, the power feeding unit 13 can feed the stored power to the wireless communication terminal via the second USB interface unit 12. The detection unit 14 detects a power failure of the router. The notification unit 15 notifies the wireless communication terminal of the power failure of the router via the second USB interface unit 12 when the detection unit 14 detects the power failure of the router.

  That is, when the power supply device 1 according to the present embodiment detects a power supply abnormality of the router, the power supply device 1 supplies power to the wireless communication terminal and notifies the power supply abnormality of the router. Therefore, the power supply device 1 can notify the power failure of the router via the wireless communication terminal.

[Second Embodiment]
Next, a second embodiment of the present disclosure will be described with reference to FIGS. FIG. 2 is a block diagram of the power supply device 2 according to the present embodiment. As shown in FIG. 2, the power supply device 2 includes a first USB interface unit 21, a second USB interface unit 22, a power supply unit 23, a detection unit 24, a notification unit 25, and a storage unit 26.
The first USB interface unit 21, the second USB interface unit 22, the power supply unit 23, the detection unit 24, the notification unit 25, and the storage unit 26 are electrically connected to each other.

In this embodiment, the power supply device 2 is used by being connected to the router 3 and the wireless communication terminal 4.
The router 3 is, for example, a router used for a commercial wireless or wired network line, and relays communication of network equipment and the like. The router 3 has a USB port 31 and a power supply unit 32.
The wireless communication terminal 4 uses a wireless line of a communication standard such as 3G (3rd generation), 4G (4th generation), and LTE (Long Term Evolution) based on the acquired power source and electric signal, without passing through the router 3. It is a terminal capable of wireless communication. The wireless communication terminal 4 has a USB connector 41 and a communication unit 42.

The first USB interface unit 21 is a USB connector connected to the USB port 31 of the router 3. The first USB interface unit 21 performs data communication based on USB standards such as USB 2.0, USB 3.0, USB 3.1, and USB 3.2. Since the data communication conforming to the USB standard is the same as the known method, detailed description will be omitted.
The power supply device 2 can exchange electric signals with the router 3 via the first USB interface unit 21. Further, the power supply device 2 can also obtain a power supply conforming to the USB standard from the router 3 via the first USB interface unit 21.

The second USB interface unit 22 is a USB port connected to the USB connector 41 of the wireless communication terminal 4. The second USB interface unit 22 performs data communication conforming to the USB standard.
The power supply device 2 can exchange electric signals with the wireless communication terminal 4 via the second USB interface unit 22. In addition, the power supply device 2 can also supply power conforming to the USB standard to the wireless communication terminal 4 via the second USB interface unit 22.

  The power supply unit 23 includes electronic components such as a capacitor and a secondary battery that can store electricity. The power supply unit 23 can store electricity from the router 3 via the first USB interface unit 21. Further, the power feeding unit 23 can feed power stored in a capacitor, a secondary battery, or the like to the wireless communication terminal 4 via the second USB interface unit 22.

The detection unit 24 detects a power failure of the router 3. For example, the detection unit 24 determines that a power failure has occurred in the router 3 when the power supply from the router 3 to the power supply device 2 is interrupted. Alternatively, the detection unit 24 may monitor the electric signal received from the router 3 and determine that a power failure has occurred in the router 3 when the electric signal is interrupted.
The detection unit 24 outputs a detection signal when detecting the power failure of the router 3. The detection signal is a signal notifying that the detection unit 24 has detected the power failure of the router 3. The detection unit 24 may include information on the time when the power failure of the router 3 is detected in the detection signal.

The notification unit 25 outputs the notification signal when the detection signal is acquired. The notification signal is a signal for notifying the power failure of the router 3, and is output to the wireless communication terminal 4 via the second USB interface unit 22.
Note that the notification unit 25 may include, in the notification signal, information on the time when the detection unit 24 detects the power failure of the router 3 based on the acquired detection signal. Further, the notification unit 25 may include the information stored in the storage unit 26 described later in the notification signal.

  The storage unit 26 is a device that can store information such as electric signals acquired from the router 3 and the wireless communication terminal 4. The storage unit 26 may store information such as the detection signal acquired from the detection unit 24 and the notification signal acquired from the notification unit 25. A storage medium such as a volatile memory or a non-volatile memory is used for the storage unit 26.

The USB port 31 is a USB port that can be connected to the first USB interface unit 21 of the power supply device 2. The router 3 can supply power to the power supply device 2 and can also exchange electric signals with the power supply device 2 via the USB port 31.
The power supply unit 32 is connected to a commercial power supply and acquires commercial power as the power supply of the router 3. The commercial power is, for example, a voltage of 100 V or 200 V, an AC power having a frequency of 50 Hz or 60 Hz, and the like. The power supply unit 32 includes, for example, a power plug connected to an outlet that outputs commercial power.

The USB connector 41 is a USB connector that can be connected to the second USB interface unit 22 of the power supply device 2. The wireless communication terminal 4 can be supplied with power from the power supply device 2 and can also exchange electric signals with the power supply device 2 via the USB connector 41.
The communication unit 42 performs wireless communication based on the acquired electric signal.

Here, the operation of the power supply device 2 will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic diagram showing a state of the power supply device 2 when the router 3 has no power supply abnormality. FIG. 4 is a schematic diagram showing a state of the power supply device 2 when the router 3 has a power supply abnormality.
The management terminal 5 shown in FIGS. 3 and 4 is a communication terminal managed by the user.

  When there is no power failure in the router 3, the wireless communication terminal 4 acquires power from the router 3 via the power supply device 2. That is, the wireless communication terminal 4 acquires power through the power supply unit 32, the USB port 31, the first USB interface unit 21, the second USB interface unit 22, and the USB connector 41, as indicated by the thick arrow in FIG. . Therefore, by using the power supplied from the router 3, the wireless communication terminal 4 can perform wireless communication with the management terminal 5 via the communication unit 42 without using the power stored in the power supply unit 23. .

  Further, the router 3 and the wireless communication terminal 4 can bidirectionally exchange electric signals via the power supply device 2. Further, the wireless communication terminal 4 and the management terminal 5 can also bidirectionally exchange electric signals via wireless communication. Therefore, the management terminal 5 can bidirectionally send and receive electric signals to and from the router 3 even when the management terminal 5 is arranged at a place distant from the router 3.

  On the other hand, when a power failure occurs in the router 3 due to a power failure or the like, power cannot be supplied from the power supply unit 32 to the power supply device 2 as indicated by a cross mark in FIG. In this case, the power supply unit 23 of the power supply device 2 supplies the stored power to the wireless communication terminal 4 via the second USB interface unit 22. Therefore, the wireless communication terminal 4 can perform wireless communication with the management terminal 5 via the communication unit 42 by using the electric power stored in the power supply unit 23.

  The notification unit 25 also outputs a notification signal to the wireless communication terminal 4 using the electric power stored in the power supply unit 23. The wireless communication terminal 4 transmits the acquired notification signal to the management terminal 5. Since the notification signal is a signal notifying the power failure of the router 3, the management terminal 5 can detect the power failure of the router 3 by acquiring the notification signal. In this way, the notification unit 25 can notify the power failure of the router 3 via the wireless communication terminal 4.

  Further, when the notification signal includes information on the time when the detection unit 24 detects the power failure of the router 3, the management terminal 5 can obtain the time when the power failure of the router 3 occurs. In this way, the notification unit 25 can notify the time when the detection unit 24 detects the power failure of the router 3.

When the notification signal includes the information stored in the storage unit 26, the management terminal 5 can acquire the information stored in the storage unit 26. In this way, the notification unit 25 can notify the management terminal 5 of the information stored in the storage unit 26.
In this case, the management terminal 5 can acquire information regarding the operation of the power supply device 2, the router 3, and the wireless communication terminal 4 before the power failure occurs in the router 3. Therefore, the information can be utilized for investigating the cause of the power supply abnormality.

  Next, the processing flow of the power supply device 2 will be described with reference to FIG. FIG. 5 is a flowchart showing a processing flow of the power supply device 2 connected to the router 3 and the wireless communication terminal 4. When the power supply 2 detects the power supply from the router 3, the power supply 2 starts the process of step S10 shown in FIG.

  First, in step S10, the detection unit 24 of the power supply device 2 determines whether the router 3 has a power supply abnormality. When the detection unit 24 does not detect the power supply abnormality of the router 3 (NO in step S10), the process proceeds to step S20, and when the detection unit 24 detects the power supply abnormality of the router 3 (YES in step S10), the process proceeds to step S40. move on.

  When the process proceeds to step S20 and the power supply unit 23 can store electricity (YES in step S20), the process proceeds to step S25. When the power supply unit 23 is fully charged and further power storage is not possible (NO in step S20), the process proceeds to step S30.

  When the process proceeds to step S25, the power feeding unit 23 stores a part of the power source acquired from the router 3. Then, it progresses to step S30.

  When the process proceeds to step S30, the power supply device 2 supplies the power acquired from the router 3 to the wireless communication terminal 4. In addition, when the power supply device 2 acquires an electric signal from the router 3, the power supply device 2 transmits the electric signal to the wireless communication terminal 4. When the wireless communication terminal 4 acquires an electric signal from the router 3 via the power supply device 2, the wireless communication terminal 4 wirelessly communicates with the management terminal 5 based on the electric signal. Then, it returns to step S10 and continues a series of processes.

  On the other hand, when the process proceeds from step S10 to step S40, the power feeding unit 23 feeds the stored power to the wireless communication terminal 4 via the second USB interface unit 22. The wireless communication terminal 4 can operate using the electric power stored in the power feeding unit 23. Then, it progresses to step S50.

  In step S50, the notification unit 25 outputs the notification signal to the wireless communication terminal 4 via the second USB interface unit 22 using the electric power stored in the power supply unit 23. The wireless communication terminal 4 transmits the acquired notification signal to the management terminal 5. Then, it returns to step S10 and continues a series of processes.

  As described above, the power supply device 2 supplies the power from the router 3 to the wireless communication terminal 4 when the router 3 has no power failure. When the router 3 has a power failure, the power supply apparatus 2 supplies the stored power to the wireless communication terminal 4 and outputs a notification signal. By doing so, the power supply device 2 can notify the power failure of the router 3 via the wireless communication terminal 4.

  In the above example, the power supply device 2 has described the configuration that starts the process of step S10 when the power supply from the router 3 is detected, but the power supply device 2 detects the connection with the router 3. Alternatively, the process of step S10 may be started. Alternatively, the power supply device 2 may start the process of step S10 when the connection with the wireless communication terminal 4 is detected.

  Further, the configuration in which the wireless communication terminal 4 transmits the notification signal to the management terminal 5 and then returns to step S10 in step S50 has been described. However, a series of processing is performed after the wireless communication terminal 4 transmits the notification signal to the management terminal 5. You may finish. Alternatively, after the wireless communication terminal 4 transmits the notification signal to the management terminal 5, the series of processes may be ended when the power stored in the power feeding unit 23 becomes a certain value or less. With such a configuration, the power consumption of the power supply device 2 can be suppressed.

[Third Embodiment]
Next, a third embodiment of the present disclosure will be described with reference to FIG. FIG. 6 is a block diagram of the power supply device 6 according to the present embodiment. As shown in FIG. 6, the power supply device 6 includes a first USB interface unit 61, a plurality of second USB interface units 62_1, ..., 62_n, a power supply unit 63, a detection unit 64, a notification unit 65, and a determination unit 67. , Is provided.

  The power supply device 6 according to the third embodiment has the same configuration as the power supply device 1 according to the first embodiment, except that the power supply device 6 includes a plurality of second USB interface units 62_1, ..., 62_n and a determination unit 67. That is, the first USB interface unit 61, the power supply unit 63, the detection unit 64, and the notification unit 65 correspond to the first USB interface unit 11, the power supply unit 13, the detection unit 14, and the notification unit 15 in the first embodiment. And perform the same processing.

  The determining unit 67 determines whether or not a wireless communication terminal (not shown in FIG. 6) connected to the plurality of second USB interface units 62_1, ..., 62_n can communicate. For example, the determination unit 67 determines whether or not each wireless communication terminal can communicate by analyzing the communication history.

  When the detection unit 64 detects a power failure of the router, the notification unit 65 notifies the wireless communication terminal, which the determination unit 67 determines that communication is possible, of the power failure. In such a configuration, since wireless communication can be performed using a plurality of wireless communication terminals, the wireless communication line can be made redundant.

  Note that the notification unit 65 may not notify the wireless communication terminal that the determination unit 67 has determined that communication is impossible to the power supply abnormality. In such a configuration, since the power supply device 6 does not output the notification signal to the wireless communication terminal that cannot communicate, unnecessary power consumption can be suppressed.

  It should be noted that the present disclosure is not limited to the above embodiment, and can be modified as appropriate without departing from the spirit of the present disclosure.

  Further, in the above-described embodiment, each element illustrated in the drawings as a functional block that performs various processes can be configured with a CPU, a memory, and other circuits in terms of hardware, and in terms of software, It is realized by a program loaded in the memory. Therefore, it is understood by those skilled in the art that these functional blocks can be realized in various forms by only hardware, only software, or a combination thereof, and the present invention is not limited to either.

  Further, the above program can be stored using various types of non-transitory computer readable media and supplied to the computer. Non-transitory computer readable media include various types of tangible storage media. Examples of the non-transitory computer readable medium include a magnetic recording medium (for example, flexible disk, magnetic tape, hard disk drive), magneto-optical recording medium (for example, magneto-optical disk), CD-ROM (Compact Disc-Read Only Memory), CD. -R (CD-Recordable), CD-R / W (CD-ReWritable), semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)) Including. In addition, the program may be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer-readable media include electrical signals, optical signals, and electromagnetic waves. The transitory computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

1, 2 and 6 Power supply device 3 Router 4 Wireless communication terminal 5 Management terminal 11, 21, 61 First USB interface unit 12, 22, 62_1, ... 62_n Second USB interface unit 13, 23, 63 Power supply unit 14, 24, 64 Detection Parts 15, 25, 65 notification part 26 storage part 31 USB port 41 USB connector 32 power supply part 42 communication part 67 judgment part

Claims (8)

A first USB interface unit connectable to a router,
A second USB interface unit connectable to the wireless communication terminal;
A detection unit for detecting a power failure of the router,
A notification unit for notifying the wireless communication terminal of the power supply abnormality via the second USB interface unit when the detection unit detects the power supply abnormality;
A power supply unit capable of storing power from the router via the first USB interface unit and capable of supplying stored power to the wireless communication terminal via the second USB interface unit;
Power supply. The notification unit notifies the time when the detection unit detects the power supply abnormality,
The power supply device according to claim 1. Further comprising a storage unit for storing the information acquired from the router,
The notification unit notifies the information stored in the storage unit,
The power supply device according to claim 1. A plurality of the second USB interface units,
A determination unit that determines whether the wireless communication terminals connected to the respective second USB interface units can communicate.
The power supply device according to claim 1. When the detection unit detects the power supply abnormality, the notification unit notifies the wireless communication terminal that the determination unit has determined that communication is possible, of the power supply abnormality,
The power supply device according to claim 4. A power supply device according to any one of claims 1 to 5,
The router connected to the power supply device via the first USB interface unit;
A wireless communication terminal that is connected to the power supply device through the second USB interface unit and that performs wireless communication by power supply from the power supply unit when the detection unit detects the power supply abnormality.
Power system. Charging the power supply unit from the router via the first USB interface unit;
Detecting a power failure of the router,
When detecting the power supply abnormality, supplying the power stored in the power supply unit to the mobile communication terminal via the second USB interface unit and notifying the power supply abnormality.
Power supply control method. Charging the power supply unit from the router via the first USB interface unit;
Detecting a power failure of the router,
When the power supply abnormality is detected, the computer is caused to execute the step of supplying the power stored in the power supply unit to the mobile communication terminal via the second USB interface unit and notifying the power supply abnormality.
Power supply control program.

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