WO2018216478A1

WO2018216478A1 - Electronic device, power management method, and power management system

Info

Publication number: WO2018216478A1
Application number: PCT/JP2018/018040
Authority: WO
Inventors: 征司門田
Original assignee: ソニーセミコンダクタソリューションズ株式会社
Priority date: 2017-05-24
Filing date: 2018-05-10
Publication date: 2018-11-29
Also published as: JPWO2018216478A1; JP7039576B2

Abstract

The present technology relates to an electronic device, a power management method, and a power management system that make it possible to effectively utilize a remaining amount of battery power. According to the present invention, a table management unit manages a table for maintaining a power consumption value related to the power consumption of each function; a determination unit determines, on the basis of a remaining amount of battery power and the table, whether or not a function designated by a user is executable; and when it is determined that the function is executable, an instruction unit instructs execution of the function. The table management unit updates, on the basis of the remaining amount of battery power after the function has been executed, the power consumption value of the executed function in the table. The present technology is applicable to a battery-driven mobile device.

Description

Electronic device, power management method, and power management system

The present technology relates to an electronic device, a power management method, and a power management system, and more particularly, to an electronic device, a power management method, and a power management system that enable effective use of a remaining battery level.

Patent Document 1 discloses an electronic device that displays a battery remaining amount and a work time that can be executed with the remaining battery amount on a screen.

Patent Document 2 discloses that a mobile X-ray apparatus that performs X-ray imaging using a battery as a drive source displays the remaining battery level and the battery consumption required for scheduled imaging.

By the way, recent mobile devices have a function of forcibly terminating operation when the remaining battery level falls below a predetermined level such as 10%.

JP 2002-62955 A International Publication No. 2010/004855

However, even if there is a function that can be executed with a remaining battery level of, for example, 10%, the function cannot be executed on the mobile device unless the battery is charged to some extent.

The present technology has been made in view of such a situation, and makes it possible to effectively use the remaining battery capacity.

Whether the electronic device of the present technology can execute a function specified by the user based on the table management unit that manages a table that holds a power consumption value related to the power consumption for each function, the remaining battery level, and the table. A determination unit that determines whether the function is executable, and an instruction unit that instructs execution of the function when the function is determined to be executable, and the table management unit includes the battery after the function is performed Based on the remaining amount, the power consumption value of the executed function in the table is updated.

According to the power management method of the present technology, an electronic device that manages a table that holds a power consumption value related to power consumption for each function can execute a function specified by the user based on the remaining battery level and the table. If it is determined that the function is executable, the execution of the function is instructed, and the executed in the table is performed based on the remaining battery level after the function is executed. Updating the power consumption value of the function.

A power management system according to an embodiment of the present technology includes an electronic device and a power management device that manages a table that holds a power consumption value regarding power consumption for each function of the electronic device, and the power management device includes a battery of the electronic device. Based on the remaining amount and the table, a determination unit that determines whether or not the function specified by the user can be executed, and if it is determined that the function can be executed, instructs the execution of the function An instruction unit; and a table management unit that updates the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.

In the present technology, it is determined whether or not the function specified by the user can be executed based on the remaining battery level and the table that holds the power consumption value related to the power consumption for each function, and the function can be executed. Is determined, execution of the function is instructed, and the power consumption value of the executed function in the table is updated based on the remaining battery level after the function is executed.

According to this technology, the remaining battery capacity can be used effectively.

It should be noted that the effects described here are not necessarily limited, and may be any of the effects described in the present disclosure.

It is a figure explaining the battery remaining amount and operation state of the conventional electronic device. It is a figure explaining execution of a function of electronic equipment to which this art is applied. It is a figure explaining execution of a function of electronic equipment to which this art is applied. It is a block diagram which shows the structural example of the electronic device to which this technique is applied. It is a block diagram which shows the function structural example of a power management part. It is a figure which shows the example of a power management table. It is a flowchart explaining the flow of the function execution process of an electronic device. It is a flowchart explaining the flow of the function execution process of an electronic device. It is a figure which shows the other example of a power management table. It is a figure which shows the further another example of a power management table. It is a block diagram showing an example of composition of a power management system to which this art is applied.

Hereinafter, modes for carrying out the present disclosure (hereinafter referred to as embodiments) will be described. The description will be given in the following order.

1. 1. Overview of conventional technology and this technology First embodiment (electronic device)
3. Second embodiment (power management system)

<1. Overview of conventional technology and this technology>
In recent electronic devices, there is a function for forcibly terminating operation when the remaining battery level falls below a predetermined level.

For example, as shown in FIG. 1, when the remaining battery level BL exceeds 10%, the electronic device is in operation, but when the remaining battery level BL falls below 10%, the electronic device is in operation. It ends.

In this case, even if there is a function that can be executed with the battery remaining amount BL of 10%, the function cannot be executed in the electronic device unless the battery is charged to some extent.

Therefore, as shown in FIG. 2, the electronic device to which the present technology is applied compares the battery remaining amount BL with the power consumption amount W1 of the function A1 designated by the user, and the battery remaining amount BL is that of the function A1. If the power consumption amount W1 is exceeded, the function A1 is executed.

In addition, as shown in FIG. 3, in the electronic device to which the present technology is applied, when the remaining battery level BL is lower than the power consumption amount W1 of the function A1, the remaining battery level BL is equal to the function A1 or The power consumption amount W2 (W2 <W1) of the similar function A2 is compared, and if the remaining battery power BL exceeds the power consumption amount W2 of the function A2, the function A2 is executed.

In the present technology, the power consumption amount of each function is managed by a table that holds the power consumption amount for each function. After a function is executed, the power consumption of the function in the table is updated based on the remaining battery level after execution.

<2. First Embodiment>
(Configuration example of electronic equipment)
FIG. 4 is a block diagram illustrating a configuration example of an electronic device to which the present technology is applied.

4 is configured as a battery-driven mobile device such as an IoT (Internet of Things) camera that can be connected to the Internet.

In FIG. 4, a CPU (Central Processor Unit) 31 has various functions provided in the electronic device 10 according to a program stored in a ROM (Read Only Memory) 32 or a program loaded in a RAM (Random Access Memory) 33. The process for realizing is executed. The RAM 33 also appropriately stores data necessary for the CPU 31 to execute various processes.

The CPU 31, the ROM 32, and the RAM 33 are connected to each other via a bus 34. An input / output interface 35 is also connected to the bus 34.

An input unit 36, an output unit 37, a storage unit 38, a communication unit 39, and a sensor unit 40 are connected to the input / output interface 35.

The input unit 36 includes keys, buttons, a touch panel, and a microphone, and the output unit 37 includes a display, a speaker, and the like. The storage unit 38 is configured by a hard disk or the like, and the communication unit 39 is configured by an antenna or the like that performs various types of wireless communication.

The sensor unit 40 includes various sensors such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor for imaging, a human sensor, an acceleration sensor, and an illuminance sensor.

Also, a drive 41 is connected to the input / output interface 35 as necessary, and a removable medium 42 composed of a semiconductor memory or the like is appropriately attached. The computer program read from the removable medium 42 is installed in the storage unit 38 as necessary.

The power from the battery 44 is supplied to each part of the electronic device 10 by the power supply control unit 43. In addition, in a state where a device capable of supplying power is connected to the electronic device 10, the battery 44 is charged via the power control unit 43.

(Example of functional configuration of power management unit)
FIG. 5 is a block diagram illustrating a functional configuration example of the power management unit realized by a predetermined program being executed by the CPU 31.

The power management unit 50 includes a table management unit 61, a battery remaining amount acquisition unit 62, an input control unit 63, a determination unit 64, an execution instruction unit 65, an output control unit 66, and a charge control unit 67.

The table management unit 61 manages a power management table that holds power consumption values related to power consumption for each function executed by the electronic device 10. Further, after the function is executed, the table management unit 61 updates the power consumption value of the function when the power consumption value of the function is the initial value. Details of the power management table will be described later.

The battery remaining amount acquisition unit 62 acquires the battery remaining amount of the battery 44 via the power supply control unit 43 and supplies it to the determination unit 64.

The input control unit 63 receives a user input to the input unit 36 and supplies input information indicating the contents to the determination unit 64. For example, the input control unit 63 receives designation of a function desired by the user and supplies input information indicating the designated function to the determination unit 64.

The determination unit 64 determines whether any function can be executed based on the remaining battery level from the remaining battery level acquisition unit 62 and the power management table managed by the table management unit 61. Moreover, the determination part 64 determines whether the function shown by the input information from the input control part 63 is executable, when any function is executable. The determination result by the determination unit 64 is appropriately supplied to the execution instruction unit 65, the output control unit 66, and the charge control unit 67.

When the determination unit 64 determines that the function specified by the user can be executed, the execution instruction unit 65 instructs each unit for executing the function to execute the function.

When it is determined by the determination unit 64 that the function designated by the user is not executable, or when it is determined that none of the functions can be performed, the output control unit 66 is notified (alert) to that effect. Control the output.

The charging control unit 67 controls the charging of the battery 44 by controlling the power supply control unit 43 when it is determined by the determination unit 64 that none of the functions can be executed.

(Details of power management table)
Here, the details of the power management table will be described with reference to FIG.

In the power management table TB1 of FIG. 6, a power consumption value (necessary power value) necessary for executing the function is associated with each function. In the example of FIG. 6, the required power value of any function is set as an initial value. This initial value is set, for example, when the electronic device 10 is shipped.

According to the power management table TB1 of FIG. 6, the required power values of “start”, “end”, “standby”, and “return”, which are the most basic functions of the electronic device 10, are 5, 2, 1, respectively. 3.

The required power values of “humanity sensing”, “image sensing”, “acceleration sensing”, and “illuminance sensing” which are functions executed by the sensor unit 40 of the electronic device 10 are 3, 10, 3, and 3, respectively. Is done.

The necessary power value of “imaging (high rate)”, which is a function for the sensor unit 40 to capture and record a moving image at a high frame rate, is 1000. The required power value of “low rate” is set to 500.

The necessary power value of “image transmission (LTE)”, which is a function for the communication unit 39 to transmit an image using the LTE (Long Term Term Evolution) method, is set to 1000. “Image” is a function for transmitting an image using Wi-Fi. The required power value of “transmission (Wi-Fi)” is 500. The required power value of “image transmission (infrared)”, which is a function of transmitting an image by infrared communication, is set to 100.

The required power value of “alert transmission (LTE)”, which is a function for the communication unit 39 to transmit the above-described alert to a predetermined server or the like in the LTE system, is 10, and is a function for transmitting an alert using Wi-Fi. The required power value of “image transmission (Wi-Fi)” is set to 5. Further, the required power value of “image transmission (BLE)” which is a function of transmitting an image by BLE (Bluetooth (registered trademark) Low Energy) is set to 1.

As described above, the functions of the electronic device 10 include equivalent or similar functions that can be executed with different required power values, such as imaging, image transmission, and alert transmission functions.

In addition, the required power value of each function of the electronic device 10 may vary depending on the time zone in which the function is executed, the season, the climate, and the like. Therefore, as shown in FIG. 6, for example, power management tables TB1, TB2, and TB3 for each time zone are prepared. Of course, a power management table for each situation such as a power management table for each season and a power management table for each climate may be prepared.

The required power value managed in the power management table indicates the power consumption amount required for executing each function, but may indicate the current consumption, or other values related to the power consumption. It may be shown.

(Function execution process flow)
Next, the function execution processing flow of the electronic device 10 will be described with reference to the flowcharts of FIGS. 7 and 8. For example, the function execution process is periodically executed at predetermined timings, but may be executed at an arbitrary timing according to a user instruction.

In step S11, the table management unit 61 acquires a power management table corresponding to the current situation (time zone, season, climate, etc.) and supplies it to the determination unit 64.

In step S 12, the remaining battery level acquisition unit 62 acquires the remaining battery level of the battery 44 and supplies it to the determination unit 64.

In step S 13, the determination unit 64 can execute any function based on the remaining battery level acquired by the remaining battery level acquisition unit 62 and the power management table acquired by the table management unit 61. Determine whether or not.

If it is determined in step S13 that any of the functions can be executed, the process proceeds to step S14. At this time, the output control unit 66 may cause the output unit 37 to present information indicating an executable function to the user according to the determination result of the determination unit 64.

In step S14, the input control unit 63 receives a function designation by the user.

In step S15, the determination unit 64 compares the remaining battery level with the power consumption value of the function specified by the user in the power management table.

In step S16, the determination unit 64 determines whether or not the specified function is executable as a result of the comparison between the remaining battery level and the power consumption value of the function specified by the user.

If it is determined in step S16 that the specified function is executable, the process proceeds to step S17.

In step S17, the execution instruction unit 65 instructs each unit for executing the specified function to execute the function.

On the other hand, if it is determined in step S16 that the designated function is not executable, the process proceeds to step S18.

In step S18, the determination unit 64 determines whether a similar function (equivalent or similar function) of the function specified by the user can be executed.

For example, when the function designated by the user is “imaging (high rate)”, “imaging (low rate)” having a smaller required power value than “imaging (high rate)” is executed based on the remaining battery level. It is determined whether it is possible.

Further, when the function designated by the user is “image transmission (LTE)”, “image transmission (Wi-Fi)” having a smaller required power value than “image transmission (LTE)” based on the remaining battery level. Alternatively, it is determined whether or not “image transmission (infrared)” can be executed.

If it is determined in step S18 that a similar function of the specified function can be executed, the process proceeds to step S19.

In step S19, the execution instructing unit 65 instructs each unit for executing a similar function of the designated function to execute the function.

After step S17 or step S19, the process proceeds to step S20.

In step S 20, the remaining battery level acquisition unit 62 acquires the remaining battery level of the battery 44 after execution of the instructed function and supplies it to the table management unit 61.

In step S 21, the table management unit 61 specifically determines the difference between the remaining battery level acquired before executing the function and the remaining battery level acquired after executing the function based on the remaining battery level before and after executing the function. Is used to update the power consumption value of the executed function in the power management table, and the process ends.

Thus, when one function is executed, the required power value of the function in the power management table is updated to the power consumption value actually required for executing the function.

On the other hand, if it is determined in step S18 that a similar function of the designated function cannot be executed, the process proceeds to step S22.

In step S22, the output control unit 66 causes the output unit 37 to output an alert to the effect that the function designated by the user is not executable, and ends the process. At this time, an alert that the function designated by the user is not executable may be transmitted to a predetermined server connected to the electronic device 10.

As described above, when the function designated by the user is not executable, the user is notified of the fact.

By the way, when it is determined in step S13 that none of the functions can be executed, the process proceeds to step S23.

In step S23, the output control unit 66 causes the output unit 37 to output an alert indicating that no function is executable. At this time, an alert indicating that none of the functions can be executed may be transmitted to a predetermined server connected to the electronic device 10.

Subsequently, in step S 24, the charging control unit 67 starts charging the battery 44 by controlling the power supply control unit 43. That is, the electronic device 10 forcibly ends the operation and transitions to a standby state.

In step S25, the charging control unit 67 determines whether or not the charging of the battery 44 is completed. The process of step S25 is repeated until charging of the battery 44 is completed.

If it is determined in step S25 that charging of the battery 44 has been completed, the process proceeds to step S26. At this time, the electronic device 10 automatically returns from the standby state. The charging of the battery 44 may be performed until all the functions of the electronic device 10 are executable, or may be performed until at least one of the functions is executable. .

In step S26, the table management unit 61 initializes the power management table acquired in step S11 and ends the process.

As described above, when none of the functions can be executed, the state transits to the standby state until the function can be executed, and the battery 44 is charged. Note that the alert output, the charging of the battery 44, and the initialization of the power management table in steps S23 to S26 may be performed in an order other than the illustrated order, or may be performed in parallel. .

According to the above processing, the electronic device 10 does not forcibly end the operation even when the remaining battery level is low, and if the function designated by the user can be executed, Can be executed. Therefore, the remaining battery capacity can be used effectively.

Furthermore, even if the function specified by the user is not executable, the function can be executed if a function equivalent to or similar to the function can be executed. It is possible to use the remaining battery amount more effectively.

Also, since the necessary power value of the executed function is updated in the power management table corresponding to the situation at that time, it becomes possible to keep the power management table for each situation in the latest state.

(Other examples of power management table)
In the example described above, the electronic device 10 is configured as an IoT camera, but may be configured as a battery-driven mobile device having other functions. In this case, a power management table managed by the table management unit 61 is prepared differently from that shown in FIG.

FIG. 9 shows an example of a power management table when the electronic device 10 is configured as an audio player, for example.

Also in the power management table TB11 of FIG. 9, a necessary power value for executing the function is associated with each function.

According to the power management table TB11 of FIG. 9, the required power values of “start”, “end”, “standby”, and “return”, which are the most basic functions of the electronic device 10 configured as an audio player, are respectively 4, 2, 1, and 3.

The required power value of “sound reproduction (high sound quality)”, which is a function for the output unit 37 to reproduce sound with high sound quality, is 600, and “sound reproduction (low sound quality)”, which is a function for reproducing sound with low sound quality, is set. The required power value is 300.

The required power value of “voice recording (high sound quality)”, which is a function in which the input unit 36 and the storage unit 38 record sound with high sound quality, is set to 500, and “voice recording (low The required power value of “sound quality)” is 250.

Note that the alert transmission function by the communication unit 39 is the same as that in the example of FIG.

As described above, when the electronic device 10 is configured as an audio player, the functions include equivalent or similar functions that can be executed with different required power values, such as voice playback, voice recording, and alert transmission functions. It is included.

FIG. 10 shows an example of a power management table when the electronic device 10 is configured as a smartphone (mobile phone).

Also in the power management table TB12 of FIG. 10, a necessary power value for executing the function is associated with each function.

According to the power management table TB12 of FIG. 10, the required power values of “start”, “end”, “standby”, and “return”, which are the most basic functions of the electronic device 10 configured as a smartphone, are 8 respectively. , 3, 2, 5.

The required power value of “voice call (4G)”, which is a function in which the communication unit 39 performs a voice call in the 4G (4th generation) system, is 500, and “voice” is a function in which a voice call is performed in the 3G (3rd generation) system. The required power value of “call (3G)” is 300.

The required power value of “data communication (LTE)”, which is a function for performing data communication by the LTE method by the communication unit 39, is 400, and “data communication (Wi-Fi) is a function for performing data communication using Wi-Fi. The required power value of “)” is 250.

The required power value of “moving image reproduction (high image quality)”, which is a function of the output unit 37 for reproducing moving images with high image quality, is 600, and “moving image reproduction (low image quality)” is a function for reproducing moving images with low image quality. The required power value of "is 300.

As described above, when the electronic device 10 is configured as a smartphone, the functions thereof are equivalent or similar that can be executed with different required power values, such as voice call, data communication, video playback, and alert transmission functions. Features are included.

Although not shown, in the examples of FIGS. 9 and 10, power management tables for each situation such as a power management table for each time zone, a power management table for each season, and a power management table for each climate are prepared. You can make it.

<3. Second Embodiment>
(Configuration example of power management system)
FIG. 11 is a block diagram illustrating a configuration example of a power management system to which the present technology is applied.

11 includes an electronic device 110 and a power management device 120.

The electronic device 110 and the power management apparatus 120 are connected to each other via a predetermined network such as the Internet.

The electronic device 110 is configured as a battery-driven mobile device, similar to the electronic device 10 described with reference to FIG.

The power management apparatus 120 is configured as a predetermined server, for example, and manages the state of the battery (electric power) of the electronic device 110. In the power management apparatus 120, the power management unit 50 is realized by a CPU (not shown) executing a predetermined program.

That is, the power management unit 50 in FIG. 11 can execute the function execution process described with reference to FIGS. 7 and 8 for the electronic device 110.

According to such a configuration, the electronic device 110 does not forcibly end the operation even when the remaining battery level is low, and if the function designated by the user can be executed, The function can be executed. Therefore, the remaining battery capacity can be used effectively.

In the example of FIG. 11, the power management apparatus 120 can manage the power states of the plurality of electronic devices 110. That is, the present technology can also be applied to cloud computing.

In the example of FIG. 11, the alert may be output from the electronic device 110 or may be output from the power management apparatus 120.

Embodiments of the present technology are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present technology.

Furthermore, this technique can take the following structures.
(1)
A table management unit that manages a table that holds power consumption values related to power consumption for each function;
A determination unit that determines whether or not a function designated by a user can be executed based on a remaining battery level and the table;
An instruction unit for instructing execution of the function when it is determined that the function is executable;
The table management unit updates the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.
(2)
When the determination unit determines that the first function designated by the user is not executable, the determination unit is a function equivalent to or similar to the first function, and has a power consumption value higher than that of the first function. Determine whether a small second function can be performed,
The electronic device according to (1), wherein the instruction unit instructs execution of the second function when it is determined that the second function is executable.
(3)
When it is determined that the second function is not executable, or when it is determined that none of the functions is executable, an output control unit that controls the output of a notification to that effect is further provided in (2) The electronic device described.
(4)
When it is determined that none of the functions can be executed, the battery control device further includes a charge control unit that controls charging of the battery until at least one of the functions can be executed. (1) to (3) The electronic device as described in.
(5)
The table management unit manages the table holding the power consumption value for each time zone,
The determination unit determines whether or not the function can be executed based on the remaining battery level and the table of a time zone including the current time. (1) to (4) Electronics.
(6)
The table management unit manages the table holding the power consumption value for each season,
The electronic device according to any one of (1) to (4), wherein the determination unit determines whether the function is executable based on the remaining battery level and the table of the current season.
(7)
The table management unit manages the table holding the power consumption value for each climate,
The electronic device according to any one of (1) to (4), wherein the determination unit determines whether the function is executable based on the remaining battery level and the table of a current climate.
(8)
The table management unit calculates the power consumption value of the executed function using a difference between the remaining battery level before the function is executed and the remaining battery level after the function is executed. The electronic device according to any one of (1) to (7) to be updated.
(9)
An electronic device that manages a table that holds power consumption values related to power consumption for each function
Based on the remaining battery level and the table, it is determined whether or not the function specified by the user can be executed,
If it is determined that the function is executable, the execution of the function is instructed,
A power management method including a step of updating the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.
(10)
Electronic equipment,
A power management device that manages a table that holds a power consumption value related to power consumption for each function of the electronic device, and
The power management device includes:
A determination unit that determines whether or not a function specified by a user can be executed based on a remaining battery level of the electronic device and the table;
When it is determined that the function is executable, an instruction unit that instructs execution of the function;
A table management unit that updates the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.

10 electronic devices, 31 CPU, 36 input unit, 37 output unit, 38 storage unit, 39 communication unit, 40 sensor unit, 43 power supply control unit, 44 battery, 50 power management unit, 61 table management unit, 62 battery remaining amount acquisition Unit, 63 input control unit, 64 determination unit, 65 execution instruction unit, 66 output control unit, 67 charge control unit, 100 power management system, 110 electronic device, 120 power management device

Claims

A table management unit that manages a table that holds power consumption values related to power consumption for each function;
A determination unit that determines whether or not a function designated by a user can be executed based on a remaining battery level and the table;
An instruction unit for instructing execution of the function when it is determined that the function is executable;
The table management unit updates the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.
When the determination unit determines that the first function designated by the user is not executable, the determination unit is a function equivalent to or similar to the first function, and has a power consumption value higher than that of the first function. Determine whether a small second function can be performed,
The electronic device according to claim 1, wherein the instruction unit instructs execution of the second function when it is determined that the second function is executable.
The output control part which controls the output of the notification to that effect when it determines with the said 2nd function not being executable, or when it is determined that none of the said functions are executable. The electronic device described.
The electronic device according to claim 3, further comprising: a charge control unit that controls charging of the battery until at least any one of the functions can be executed when it is determined that none of the functions can be executed.
The table management unit manages the table holding the power consumption value for each time zone,
The electronic device according to claim 1, wherein the determination unit determines whether or not the function is executable based on the remaining battery level and the table of a time zone including a current time.
The table management unit manages the table holding the power consumption value for each season,
The electronic device according to claim 1, wherein the determination unit determines whether the function is executable based on the remaining battery level and the table of the current season.
The table management unit manages the table holding the power consumption value for each climate,
The electronic device according to claim 1, wherein the determination unit determines whether the function is executable based on the remaining battery level and the table of a current climate.
The table management unit calculates the power consumption value of the executed function using a difference between the remaining battery level before the function is executed and the remaining battery level after the function is executed. The electronic device according to claim 1 to be updated.
An electronic device that manages a table that holds power consumption values related to power consumption for each function
Based on the remaining battery level and the table, it is determined whether or not the function specified by the user can be executed,
If it is determined that the function is executable, the execution of the function is instructed,
A power management method including a step of updating the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.
Electronic equipment,
A power management device that manages a table that holds a power consumption value related to power consumption for each function of the electronic device, and
The power management device includes:
A determination unit that determines whether or not a function specified by a user can be executed based on a remaining battery level of the electronic device and the table;
When it is determined that the function is executable, an instruction unit that instructs execution of the function;
A table management unit that updates the power consumption value of the executed function in the table based on the remaining battery level after the function is executed.