JP2015179298A - Electronic equipment, power supply method, and power supply control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply power from electronic equipment which supplies power to the other electronic equipment, and to stop the supply of power even when the state of the other electronic equipment to which power is supplied is not noticed.SOLUTION: Electronic equipment 101 includes: a power supply part 109; a power distribution part 105 capable of supplying power supplied from the power supply part 109 to each section requiring power and the other electronic equipment; a power supply power measurement part 102 for measuring a power supply power value to be supplied from the power supply part 109 to the power distribution part 105; an external supply power measurement part 103 for measuring an external supply power value to be supplied from the power distribution part 105 to the other electronic equipment; and a power monitoring control part 106 for, when a value calculated by subtracting the external supply power value from the measured power supply power value is less than a predetermined threshold, allowing the power distribution part 105 to supply power to the other electronic equipment, and for, when the value calculated by subtracting the external supply power value from the power supply power value is equal to or more than the predetermined threshold, allowing the power distribution part 105 to stop the supply of power to the other electronic equipment.

Description

  The present invention relates to an electronic device, a power supply method, and a power supply control program.

  A technique for supplying power from one device to another device and stopping the supply based on a predetermined condition is known.

  For example, in Patent Literature 1, the remaining operation time in the wireless communication terminal 200 and the router device 201 is estimated based on information such as the remaining amount of the charging battery in the wireless communication terminal 200 and the router device 201, and the estimated router A technique for supplying power from the charging battery of the router device 201 to the charging battery of the wireless communication terminal 200 until the remaining operating time of the device 201 becomes equal to or less than the estimated remaining operating time of the wireless communication terminal 200 is disclosed. Yes.

  Patent Document 2 discloses that when an overcurrent is detected in the power supply circuit 26 of the communication terminal 2 to which power is supplied from the router 3 via the communication power line 4, the communication terminal 2 is connected to the communication terminal 2 from the router 3. A technique for stopping the supply of electric power to is disclosed.

  As a related technique, Patent Document 3 discloses a technique in which a mobile router 2 with a built-in rechargeable battery attached to a cradle 3 is charged with a charging voltage supplied from the cradle 3.

JP 2013-0747484 A JP 2008-219277 A JP 2012-044477 A

  However, the techniques described in Patent Documents 1 and 2 have a problem in that it is impossible to determine the supply of power and the stop of the supply unless the state of the wireless terminal 200 or the communication terminal 2 to which the power is supplied is known. .

  Note that Patent Document 3 merely discloses a technique in which the cradle 3 supplies a charging voltage.

  The objective of this invention is providing the electronic device, the power supply method, and the power supply control program which solved the problem mentioned above.

The first electronic device of the present invention is
A power supply,
A power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices;
A power supply power measurement unit that measures a power supply power value that is a value of power supplied from the power supply unit to the power distribution unit;
An external supply power measurement unit that measures an external supply power value that is a value of power supplied from the power distribution unit to another electronic device;
A value obtained by acquiring the power supply power value measured by the power supply power measurement unit and the external power supply value measured by the external power supply measurement unit, and subtracting the external power supply value from the power supply power value Is less than a predetermined threshold value, the power distribution unit supplies power to the other electronic device, while a value obtained by subtracting the external power supply value from the power supply power value is When it is equal to or greater than the threshold value, the power distribution control unit is configured to cause the power distribution unit to stop supplying power to the other electronic devices.

Furthermore, the second electronic device of the present invention is
A power supply,
A power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices;
A power supply power measurement unit that measures a power supply power value that is a value of power supplied from the power supply unit to the power distribution unit;
An external supply power measurement unit that measures an external supply power value that is a value of power supplied from the power distribution unit to another electronic device;
A storage unit that stores a plurality of power value range information indicating ranges of different power values, and an upper limit value corresponding to each of the plurality of power value range information,
Obtaining the power supply power value measured in the power supply power measurement unit and the external supply power value measured in the external supply power measurement unit, referring to the storage unit, from the power supply power value The power value range information indicating a range including a value obtained by subtracting an external power supply value is specified, and the upper limit value stored in the storage unit corresponding to the specified power value range information is stored in the power distribution unit. Power monitoring and control unit
The power distribution unit limits the externally supplied power value to the upper limit value received from the power monitoring control unit.

The first power supply method of the present invention is as follows.
A power supply power measurement step of measuring a power supply power value that is a value of power supplied from a power supply unit provided in the first electronic device to a power distribution unit provided in the first electronic device;
External supply power value that is a value of power supplied from the power distribution unit capable of supplying power to each unit in the first electronic device and the second electronic device that require power to the second electronic device An external power supply measurement step for measuring,
When a value obtained by subtracting the external supply power value measured in the external supply power measurement step from the power supply power value measured in the power supply power measurement step is less than a predetermined threshold, the power distribution unit When power supplied to the second electronic device is performed and the value obtained by subtracting the external power supply value from the power supply power value is equal to or greater than the predetermined threshold, the power distribution unit is configured to perform the first power supply. And a power supply control step for stopping the supply of power to the electronic device.

Furthermore, the second power supply method of the present invention includes:
A power supply power measurement step of measuring a power supply power value that is a value of power supplied from a power supply unit provided in the first electronic device to a power distribution unit provided in the first electronic device;
External supply power value that is a value of power supplied from the power distribution unit capable of supplying power to each unit in the first electronic device and the second electronic device that require power to the second electronic device An external power supply measurement step for measuring,
A plurality of power value range information indicating different power value ranges provided in the first electronic device, and an upper limit value corresponding to each of the plurality of power value range information, with reference to a storage unit; Specifying the power value range information indicating a range including a value obtained by subtracting the external supply power value measured in the external supply power measurement step from the power supply power value measured in the power supply power measurement step; The upper limit value stored in the storage unit corresponding to the specified power value range information is sent to the power distribution unit, and the external power supply value is limited to the received upper limit value to the power distribution unit. And a power supply control step.

The first power supply control program of the present invention is
A power supply unit, a power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices, and a value of power supplied from the power supply unit to the power distribution unit A power supply power measurement unit that measures a power supply power value; and an external power supply measurement unit that measures an external power supply value that is a value of power supplied from the power distribution unit to the first electronic device. In the computer provided in the electronic equipment of 2,
A value obtained by acquiring the power supply power value measured by the power supply power measurement unit and the external power supply value measured by the external power supply measurement unit, and subtracting the external power supply value from the power supply power value Is less than a predetermined threshold value, the power distribution unit supplies power to the first electronic device, while a value obtained by subtracting the external supply power value from the power supply power value is the predetermined power supply value. If the threshold value is equal to or greater than the threshold value, the power distribution control process is executed to cause the power distribution unit to stop supplying power to the first electronic device.

Furthermore, the second power supply control program of the present invention provides:
A power supply unit, a power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices, and a value of power supplied from the power supply unit to the power distribution unit A power supply power measurement unit that measures a certain power supply power value is different from an external power supply measurement unit that measures an external supply power value that is a value of power supplied from the power distribution unit to the first electronic device. A computer provided in a second electronic device including a plurality of power value range information indicating a range of power values and a storage unit that stores an upper limit value corresponding to each of the plurality of power value range information,
Obtaining the power supply power value measured in the power supply power measurement unit and the external supply power value measured in the external supply power measurement unit, referring to the storage unit, from the power supply power value The power value range information indicating a range including a value obtained by subtracting an external power supply value is specified, and the upper limit value stored in the storage unit corresponding to the specified power value range information is stored in the power distribution unit. Sending, and causing the power distribution unit to execute a power supply control process for limiting the externally supplied power value to the received upper limit value.

  The present invention has an effect that power can be supplied to and stopped from another electronic device that supplies power without knowing the state of the other electronic device to which power is supplied. There is.

It is a block diagram which shows the 1st Embodiment of this invention. It is a flowchart figure which shows operation | movement of the electric power monitoring control part in 1st Embodiment. It is a block diagram which shows the 2nd Embodiment of this invention. It is a figure which shows the external supply electric power upper limit setting table in the memory | storage part which concerns on 2nd Embodiment. It is a flowchart which shows operation | movement of the electric power monitoring control part in 2nd Embodiment.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
<First Embodiment>
First, a first embodiment of the present invention will be described.

  FIG. 1 is a block diagram showing a first embodiment of the present invention.

  Referring to FIG. 1, the present embodiment includes an electronic device 101 such as a mobile router, and the electronic device 101 includes a power distribution unit 105, a power monitoring control unit 106, a power supply unit 109 such as a rechargeable battery, and a power supply. The power measuring unit 102 and the externally supplied power measuring unit 103 are configured.

  The power distribution unit 105 supplies power supply power, which is power supplied from the power supply unit 109, to each unit in the electronic device 101 that requires power, and in accordance with an instruction from the power monitoring control unit 106, the portable terminal To other electronic devices (not shown).

  Below, the sum total of the electric power supplied to each part which needs electric power in the electronic device 101 is called total internal supply electric power, and the electric power supplied to another electronic device is called external supply electric power.

  Further, the value of externally supplied power that can be supplied to other electronic devices by the power distribution unit 105 is limited to a predetermined upper limit power value.

  The power monitoring control unit 106 performs a predetermined control operation described later.

  The power supply power measurement unit 102 measures a power supply power value that is the value of power supplied from the power supply unit 109 and notifies the control unit 106 of the power supply power value.

  The external power supply measuring unit 103 measures the external power supply value, which is the value of the external power supply, and notifies the control unit 106 of it.

  Next, the operation of this embodiment will be described.

  FIG. 2 is a flowchart showing an operation flow of the power monitoring control unit 106.

  First, the power monitoring control unit 106 acquires a power supply power value and an external supply power value from the power supply power measurement unit 102 and the external supply power measurement unit 103, respectively (step S301).

  Next, the power monitoring control unit 106 subtracts the acquired external supply power value from the acquired power supply power value to obtain a total internal supply power value that is a value of the total internal supply power (step S302).

  The power monitoring control unit 106 compares the total internal supply power value obtained in step 302 with a predetermined threshold value (step S303).

  The predetermined threshold is a value smaller than a value obtained by subtracting the predetermined upper limit power value from a maximum supply power value that is a value of the maximum power that can be supplied by the power supply unit 109.

  In the following description, as an example, it is assumed that the maximum supply power value in the power supply unit 109 is 5 W (watts), the predetermined threshold value is 2.5 W, and the predetermined upper limit power value is 2 W.

  In step S303, if the total internal supply power value is less than a predetermined threshold (2.5W) (for example, if the total internal supply power value is 2.0W) (YES in step S303), the power monitoring control unit 106 transmits a power supply instruction signal to the power distribution unit 105 via the control signal line 107, and causes the power distribution unit 105 to supply externally supplied power (step S304).

  Thereafter, immediately or after a predetermined time has elapsed, the power monitoring control unit 106 returns to the process of step S301.

  On the other hand, in step S303, if the total internal supply power value is equal to or greater than a predetermined threshold (2.5W) (for example, if the total internal supply power value is 3.0W) (NO in step S303), power monitoring is performed. The control unit 106 transmits a power supply stop instruction signal to the power distribution unit 105 via the control signal line 107, and causes the power distribution unit 105 to stop supplying externally supplied power (step S305).

  Thereafter, immediately or after a predetermined time has elapsed, the power monitoring control unit 106 returns to the process of step S301.

  Note that the power monitoring control unit 106 may be realized by dedicated hardware, or may be realized by a computer such as a microprocessor that operates under program control.

  As described above, in the present embodiment, even if the state of other electronic devices to which power is supplied is not known, power supply from the electronic device 101 that supplies power to other electronic devices is stopped. There is an effect that can be.

The reason is that the supply of power to other electronic devices and the stop of the supply are based only on the total internal supply power value that is the value of the total internal supply power supplied to each part in the electronic device 101 and a predetermined threshold value. This is because judgment is made.
<Second Embodiment>
Next, a second embodiment of the present invention will be described.

  FIG. 3 is a block diagram showing a second embodiment of the present invention.

  Referring to FIG. 3, the present embodiment includes an electronic device 201 such as a mobile router. The electronic device 201 includes a power distribution unit 505, a power monitoring control unit 506, a storage unit 510, and a power supply unit such as a rechargeable battery. 109, a power supply power measurement unit 102, and an external power supply measurement unit 103.

  The power distribution unit 505 supplies power supply power, which is power supplied from the power supply unit 109, to each unit in the electronic device 201 that requires power, and in accordance with an instruction from the power monitoring control unit 506, the portable terminal To other electronic devices (not shown).

  Below, the sum total of the electric power supplied to each part in the electronic device 201 which requires electric power is called total internal supply electric power, and the electric power supplied to another electronic device is called external supply electric power.

  Further, it is assumed that the maximum supply power value that is the value of the maximum power that can be supplied by the power supply unit 109 is 5 W.

  Further, the value of the external supply power that can be supplied to the other electronic devices by the power distribution unit 505 is, as will be described later, up to a predetermined upper limit power value corresponding to the total internal supply power value that is the value of the total internal supply power. Limited.

  Further, the power monitoring control unit 506 performs a predetermined control operation described later.

  The power supply power measurement unit 102 measures a power supply power value that is a value of power supplied from the power supply unit 109 and notifies the control unit 506 of the power supply power value.

  The external supply power measurement unit 103 measures the external supply power value, which is the value of the external supply power, and notifies the control unit 506 of it.

  Storage unit 510 stores an external supply power upper limit setting table shown in FIG.

  Referring to FIG. 4, the external supply power upper limit value setting table includes a “total internal supply power value” column and an “external supply power upper limit” column.

  In the “total internal supply power value range information” column, a plurality of total internal supply power value range information indicating ranges of different total internal supply power values are registered.

  In the “external supply power upper limit value” column, the upper limit power value of the external supply power corresponding to each of the plurality of total internal supply power value range information registered in the “total internal supply power value” column is registered.

  The upper limit power value of the external supply power is determined from the maximum supply power value, which is the maximum power value that can be supplied by the power supply unit 109, in accordance with the upper limit value and the total internal power value registered in the “total internal supply power value” column. The value is smaller than the value obtained by subtracting the upper limit value of the range indicated by the supply power value range information.

  For example, when the total internal supply power value is 1.5 W, among the plurality of ranges indicated by the plurality of total internal supply power value range information registered in the “total internal supply power value range information” column of FIG. Since 1.5 W is included in the range of “1.0 W or more to less than 2.0 W”, it is registered in the “external supply power upper limit” column corresponding to the total internal supply power value range information indicating the range. “3.0 W” is the upper limit value of power that can be supplied from the power distribution unit 505 to other electronic devices.

  Next, the operation of this embodiment will be described.

  FIG. 5 is a flowchart showing an operation flow of the power monitoring control unit 506.

  First, the power monitoring control unit 506 acquires a power supply power value and an external supply power value from the power supply power measurement unit 102 and the external supply power measurement unit 103, respectively (step S701).

  Next, the power monitoring control unit 506 subtracts the acquired external supply power value from the acquired power supply power value to obtain a total internal supply power value (step S702).

  Now, it is assumed that the total internal supply power value thus obtained is 2.5 W.

  The power monitoring control unit 506 refers to each total internal supply power value range information registered in the “total internal supply power value range information” column of the external supply power upper limit setting table, and determines the total internal supply obtained in step 702. The total internal supply power value range information indicating the range including the power value (2.5 W) (“2.0 W or more to less than 3.0 W”) is specified, and the total internal supply power value range information thus specified is supported. Then, the upper limit power value (“2 W”) of the external supply power registered in the “external supply power upper limit value” field of the external supply power upper limit value setting table is acquired (step S703).

  The power monitoring control unit 506 transmits an upper limit value setting signal indicating the acquired upper limit power value (“2W”) to the power distribution unit 505 via the control signal line 507 (step S704).

  The power distribution unit 505 that has received the upper limit value setting signal limits the externally supplied power value to the upper limit power value (“2 W”) indicated by the upper limit value setting signal (step S705).

  Thereafter, immediately or after a predetermined time has elapsed, the power monitoring control unit 506 returns to the process of step S701.

  The power monitoring control unit 506 may be realized by dedicated hardware, or may be realized by a computer such as a microprocessor that operates under program control.

  As described above, according to the present embodiment, it is possible to optimally supply power from the electronic device 201 that supplies power to the other electronic device without knowing the state of the other electronic device to which power is supplied. effective.

  The reason is that the upper limit value of the external supply power supplied to other electronic devices is determined in accordance with the value of the total internal supply power supplied into the electronic device 201 that supplies power.

DESCRIPTION OF SYMBOLS 101 Electronic device 102 Power supply power measurement part 103 External supply power measurement part 105 Power distribution part 106 Power monitoring control part 107 Control signal line 109 Power supply part 201 Electronic device 505 Power distribution part 506 Power monitoring control part 507 Control signal line 510 Storage part

Claims (10)

A power supply,
A power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices;
A power supply power measurement unit that measures a power supply power value that is a value of power supplied from the power supply unit to the power distribution unit;
An external supply power measurement unit that measures an external supply power value that is a value of power supplied from the power distribution unit to another electronic device;
A value obtained by acquiring the power supply power value measured by the power supply power measurement unit and the external power supply value measured by the external power supply measurement unit, and subtracting the external power supply value from the power supply power value Is less than a predetermined threshold value, the power distribution unit supplies power to the other electronic device, while a value obtained by subtracting the external power supply value from the power supply power value is An electronic device comprising: a power monitoring control unit that causes the power distribution unit to stop supplying power to the other electronic device when the threshold is equal to or greater than a threshold value. The upper limit value of power supplied from the power distribution unit to the other electronic device is a value smaller than a value obtained by subtracting the threshold value from a value of maximum power that can be supplied by the power supply unit. 1. The electronic device according to 1. A power supply,
A power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices;
A power supply power measurement unit that measures a power supply power value that is a value of power supplied from the power supply unit to the power distribution unit;
An external supply power measurement unit that measures an external supply power value that is a value of power supplied from the power distribution unit to another electronic device;
A storage unit that stores a plurality of power value range information indicating ranges of different power values, and an upper limit value corresponding to each of the plurality of power value range information,
Obtaining the power supply power value measured in the power supply power measurement unit and the external supply power value measured in the external supply power measurement unit, referring to the storage unit, from the power supply power value The power value range information indicating a range including a value obtained by subtracting an external power supply value is specified, and the upper limit value stored in the storage unit corresponding to the specified power value range information is stored in the power distribution unit. Power monitoring and control unit
The electronic device characterized in that the power distribution unit limits the externally supplied power value to the upper limit value received from the power monitoring control unit. The upper limit value stored in the storage unit is the upper limit value of the range indicated by the power value range information stored in the storage unit corresponding to the upper limit value from the value of the maximum power that can be supplied by the power supply unit. The electronic device according to claim 3, wherein the electronic device has a value smaller than a value obtained by subtracting. A power supply power measurement step of measuring a power supply power value that is a value of power supplied from a power supply unit provided in the first electronic device to a power distribution unit provided in the first electronic device;
External supply power value that is a value of power supplied from the power distribution unit capable of supplying power to each unit in the first electronic device and the second electronic device that require power to the second electronic device An external power supply measurement step for measuring,
When a value obtained by subtracting the external supply power value measured in the external supply power measurement step from the power supply power value measured in the power supply power measurement step is less than a predetermined threshold, the power distribution unit When power supplied to the second electronic device is performed and the value obtained by subtracting the external power supply value from the power supply power value is equal to or greater than the predetermined threshold, the power distribution unit is configured to perform the first power supply. And a power supply control step for stopping supply of power to the electronic device. The upper limit value of power supplied from the power distribution unit to the second electronic device is a value smaller than a value obtained by subtracting the threshold value from a value of maximum power that can be supplied by the power supply unit. Item 6. The power supply method according to Item 5. A power supply power measurement step of measuring a power supply power value that is a value of power supplied from a power supply unit provided in the first electronic device to a power distribution unit provided in the first electronic device;
External supply power value that is a value of power supplied from the power distribution unit capable of supplying power to each unit in the first electronic device and the second electronic device that require power to the second electronic device An external power supply measurement step for measuring,
A plurality of power value range information indicating different power value ranges provided in the first electronic device, and an upper limit value corresponding to each of the plurality of power value range information, with reference to a storage unit; Specifying the power value range information indicating a range including a value obtained by subtracting the external supply power value measured in the external supply power measurement step from the power supply power value measured in the power supply power measurement step; The upper limit value stored in the storage unit corresponding to the specified power value range information is sent to the power distribution unit, and the external power supply value is limited to the received upper limit value to the power distribution unit. And a power supply control step. The upper limit value stored in the storage unit is the upper limit value of the range indicated by the power value range information stored in the storage unit corresponding to the upper limit value from the value of the maximum power that can be supplied by the power supply unit. The power supply method according to claim 7, wherein the value is smaller than a value obtained by subtracting. A power supply unit, a power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices, and a value of power supplied from the power supply unit to the power distribution unit A power supply power measurement unit that measures a power supply power value; and an external power supply measurement unit that measures an external power supply value that is a value of power supplied from the power distribution unit to the first electronic device. In the computer provided in the electronic equipment of 2,
A value obtained by acquiring the power supply power value measured by the power supply power measurement unit and the external power supply value measured by the external power supply measurement unit, and subtracting the external power supply value from the power supply power value Is less than a predetermined threshold value, the power distribution unit supplies power to the first electronic device, while a value obtained by subtracting the external supply power value from the power supply power value is the predetermined power supply value. A power supply control program that causes the power distribution unit to stop supplying power to the first electronic device when the power distribution unit is equal to or greater than the threshold value. A power supply unit, a power distribution unit capable of supplying power supplied from the power supply unit to each unit that requires power and other electronic devices, and a value of power supplied from the power supply unit to the power distribution unit A power supply power measurement unit that measures a certain power supply power value is different from an external power supply measurement unit that measures an external supply power value that is a value of power supplied from the power distribution unit to the first electronic device. A computer provided in a second electronic device including a plurality of power value range information indicating a range of power values and a storage unit that stores an upper limit value corresponding to each of the plurality of power value range information,
Obtaining the power supply power value measured in the power supply power measurement unit and the external supply power value measured in the external supply power measurement unit, referring to the storage unit, from the power supply power value The power value range information indicating a range including a value obtained by subtracting an external power supply value is specified, and the upper limit value stored in the storage unit corresponding to the specified power value range information is stored in the power distribution unit. A power supply control program for sending and causing the power distribution unit to execute a power supply control process for limiting the externally supplied power value to the received upper limit value.

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