JP2007282391A - Electronic equipment and control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To completely determine whether electric equipment can be normally operated by reducing a time of a load test performed before driving the electric equipment by a battery as much as possible. <P>SOLUTION: A first battery voltage is detected in such a state that a constant-current load for making a predetermined constant current flow from the battery is stopped, and a second battery voltage is detected in such a state that the constant-current load operated. When an operation command is inputted from an operation portion, the calculation operation of a battery remaining amount during a remaining amount calculating process is omitted if the first battery voltage is above a predetermined specified voltage. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic device and a method for controlling the electronic device, and more particularly, to a technique suitable for use in determining whether or not the remaining amount of the electronic device that can operate normally remains in the battery before the electronic device is operated. .

  The portable electronic device can accommodate a battery that supplies power for operating the device. Examples of such portable electronic devices include digital cameras, video cameras, and mobile phones.

The portable electronic device as described above accurately grasps the actual remaining capacity. For example, in Patent Document 1, a resistor and a switching element connected in series are connected in parallel to the battery, and the battery voltage detection means is configured by turning on the switching element and causing the battery current to flow through the resistor. It is disclosed that battery control means for acquiring information relating to a change in the battery voltage detected by the battery, and that the battery control means determines the remaining capacity of the battery based on information relating to the battery voltage change. (See Patent Document 1)
On the other hand, when performing an operation with large power consumption, it is known to start the operation after estimating whether or not the operation is possible with the current remaining battery level. As a portable electronic device having a battery remaining amount estimation circuit for performing the estimation, a digital camera is taken as an example, and a block diagram thereof is shown in FIG. Hereinafter, the configuration of the digital camera will be described.

  A battery voltage detection unit 506 and a constant current load unit 505 capable of flowing a constant current are connected to the battery 501 in parallel. The constant current load unit 505 is configured to be capable of ON / OFF control.

  A power supply unit 502 that supplies power to the digital camera system 503 generates and supplies a plurality of types of constant voltages required by the digital camera system 503 by performing voltage conversion from the output voltage of the battery 501. The control unit 504 controls the entire digital camera system 503. FIG. 5 shows only blocks related to the battery remaining amount estimation circuit.

  The power supply control unit 510 controls the power supply unit 502 to turn on the voltage supplied from the power supply unit 502 necessary for the operation of the digital camera and to turn off the unnecessary voltage. .

  The operation switch 508 is a switch for instructing an operation such as a release switch or a mode switch for selecting an operation mode. The switch state detection unit 509 is connected to the operation switch 508 and monitors the state of the operation switch 508. The constant current load control unit 511 controls ON / OFF of the constant current load unit 505 based on the switch state information detected by the switch state detection unit 509.

  The battery voltage detection signal divided by the battery voltage detection unit 506 is supplied to the A / D conversion unit 512, and the voltage information of the battery is converted into a digital value by the A / D conversion unit 512. The remaining amount calculation unit 514 uses the battery voltage information sent from the A / D conversion unit 512 and the coefficient provided for each operation state recorded in the remaining amount calculation information recording unit 513 to estimate the remaining battery level. I do. The remaining amount display unit 507 displays the battery remaining amount estimation result calculated by the remaining amount calculation unit 514.

Next, an operation example of the digital camera configured as described above will be described with reference to the flowchart of FIG.
When the operation is started, the operation waits until a camera operation instruction is input from the operation switch 508 (step S601). When a camera operation instruction is input, the digital camera system 503 acquires the current battery voltage information V0 digitally converted by the A / D converter 512 via the battery voltage detector 506 (step S602).

  After acquiring the battery voltage information V0, the constant current load control unit 511 controls (ON) the constant current load unit 505, and flows a predetermined desired load current IL from the battery (step S603). Then, battery voltage information V1 obtained by digitally converting the battery voltage at that time by the A / D conversion unit 512 is acquired (step S604). After acquiring the battery voltage information V1, the constant current load control unit 511 controls (OFF) the constant current load unit 505 (step S605).

Next, the remaining calculation section 514 performs the following calculation process and comparison (step S606).
Vth <V0−KΔV (1 formula)
ΔV = V0−V1 (2 formulas)
Here, Vth is a predetermined lower limit for camera operation, K is an arbitrary coefficient predetermined for each camera operation input from the operation switch 508, and is stored in the remaining amount calculation information recording unit 513. Yes.

  If it is determined in step S606 that the remaining amount calculation unit 514 performs the above calculation processing and comparison, and the calculation processing result is determined to be greater than the lower limit value Vth, it is determined that the operation input in step S601 is executable. The operation is started (step S607), and when the desired operation is completed, the operation is completed (step S608).

  In step S606, if the calculation process result and the comparison (step S606) are performed and the calculation process result is determined to be equal to or lower than the lower limit value Vth, it is determined that the operation input in step S601 is not executable. The battery replacement mark is displayed on the remaining amount display unit 507 (step S609), and the power supply control unit 510 controls (OFF) the power supply unit 502 (step S610).

JP 2004-150951 A

  In the case of a conventional battery management circuit, even when the remaining battery level is sufficient, a predetermined load current is passed before operation to always estimate the remaining battery level. For this reason, there has been a problem that a large power loss occurs due to the estimation of the remaining battery capacity.

  In view of the above-mentioned problems, the present invention aims to reduce the number of load tests performed before driving an electronic device with a battery as much as possible, and to reliably determine whether or not the device can operate normally. Yes.

  An electronic apparatus according to the present invention includes a power supply unit that converts a voltage supplied from a battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and the constant current load. A battery voltage detection unit that detects a first battery voltage in a state in which the unit is stopped and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation instruction for operating the electronic device When the operation instruction is input from the operation unit, the comparison unit that compares the first battery voltage with a predetermined voltage set in advance, and the comparison result by the comparison unit is the first comparison result. When the battery voltage is equal to or lower than a preset specified voltage, the first battery voltage detected by the battery voltage detector and the second battery And having a remaining amount calculating section for calculating a remaining battery capacity based on the pressure.

  An electronic apparatus according to the present invention includes a power supply unit that converts a voltage supplied from a battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and the constant current load. A battery voltage detection unit that detects a first battery voltage in a state in which the unit is stopped and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation instruction for operating the electronic device The remaining battery level is calculated based on the first battery voltage and the second battery voltage detected by the battery voltage detection unit when an operation instruction is input from the operation unit. The remaining amount calculating unit and the remaining amount calculating unit calculate the remaining battery amount until a predetermined time elapses. And having a control unit for prohibiting the operation of calculating Teri remaining.

An electronic apparatus according to the present invention includes a power supply unit that converts a voltage supplied from a battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and the constant current load. A battery voltage detection unit that detects a first battery voltage in a state in which the unit is stopped and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation instruction for operating the electronic device And the remaining battery power based on the first battery voltage and the second battery voltage detected by the battery voltage detection unit when a first operation instruction is input from the operation unit. A remaining amount calculation unit for calculating the amount, and a time until a second operation instruction is input from the operation unit after the remaining battery amount is calculated by the remaining amount calculation unit When the time portion, the second operation instruction, and the first operation instruction are the same, and the time measured by the time measurement unit is equal to or less than a predetermined time, the remaining amount calculation unit And a control unit that prohibits the operation of calculating the remaining battery level.
An electronic apparatus according to the present invention includes a power supply unit that converts a voltage supplied from a battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and the constant current load. A battery voltage detection unit that detects a first battery voltage in a state in which the unit is stopped and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation instruction for operating the electronic device And the remaining battery power based on the first battery voltage and the second battery voltage detected by the battery voltage detection unit when a first operation instruction is input from the operation unit. A remaining amount calculation unit for calculating the amount, and a time until a second operation instruction is input from the operation unit after the remaining battery amount is calculated by the remaining amount calculation unit The power consumption for executing the time part and the second operation instruction is less than or equal to the power consumption for executing the first operation instruction, and the time measured by the time measurement part is a predetermined time. In the case of the following, it has a control unit that prohibits the battery remaining amount calculating operation by the remaining amount calculating unit.

  According to the present invention, when the operation instruction is input from the operation unit, if the battery voltage is equal to or higher than a preset specified voltage, the battery remaining amount calculation operation is omitted. It is possible to solve the problem that power loss is caused by performing the battery remaining amount estimation operation despite the sufficient amount, and to provide a battery remaining amount estimating method with less power loss.

(First embodiment)
A first embodiment of the present invention will be described below. An example of the configuration of the digital camera of this embodiment is shown in the block diagram of FIG. Hereinafter, the configuration of the digital camera of this embodiment will be described.
A battery voltage detection unit 406 and a constant current load unit 405 capable of flowing a constant current are connected to the battery 401 in parallel. The constant current load unit 405 is configured to be capable of ON / OFF control.

  A power supply unit 402 that supplies power to the digital camera system 403 generates and supplies a plurality of types of constant voltages required by the digital camera system 403 by performing voltage conversion from the voltage of the battery 401. The control unit 404 controls the entire digital camera system. FIG. 1 shows only the blocks related to the battery remaining amount estimation circuit.

  The power supply control unit 410 controls the power supply unit 402 so that the voltage supplied from the power supply unit 402 required by the operation of the digital camera is turned on and the unnecessary voltage is turned off. .

  The operation switch 408 is a switch for giving an operation instruction such as a release switch or a mode switch for selecting an operation mode. The switch state detection unit 409 is connected to the operation switch 408 and monitors the state of the operation switch 408. The constant current load control unit 411 performs ON / OFF operation control of the constant current load unit 405 according to the switch state information detected by the switch state detection unit 409.

  The battery voltage detection signal divided by the battery voltage detection unit 406 is supplied to the A / D conversion unit 412, and the A / D conversion unit 412 converts the battery voltage information into a digital value.

  The remaining amount calculation unit 414 uses the battery voltage information sent from the A / D conversion unit 412 and the reference value provided for each operation state recorded in the remaining amount calculation information recording unit 413. The amount is calculated. The remaining amount display unit 407 displays the battery remaining amount estimation result calculated by the remaining amount calculation unit 414.

Next, the operation of the digital camera of this embodiment will be described using the flowchart of FIG.
First, it waits until a camera operation instruction is input from the operation switch 408 (step S101). When a camera operation instruction is input from the operation switch 408, the digital camera system 403 acquires the current battery voltage information V′0 digitally converted by the A / D converter 412 via the battery voltage detector 406. (Step S102).

  Next, after the battery voltage information V′0 is acquired, the remaining battery level estimation unit 414 stores the battery voltage information V′0 and the remaining battery level calculation information recording unit 413, which will be described later. Comparison is made with the lower limit value V′th0 for which the test is not performed (step S103). As a result of the comparison in step S103, if V′th0 <V′0, it is determined that the operation input in step S101 can be executed, and the camera operation corresponding to the camera operation instruction input from the operation switch 408 is performed. The operation is started (step S104), and when the desired operation is completed, the operation is completed (step S105). Thereafter, the process returns to step S101 to enter a standby state for the next input.

  On the other hand, as a result of the comparison in step S103, if V′th0> = V′0, the constant current load control unit 411 controls (ON) the constant current load unit 405 to set a predetermined desired load current. I′L is flowed from the battery (step S106). Then, battery voltage information V′1 obtained by digitally converting the battery voltage at that time by the A / D conversion unit 412 is acquired (step S107).

After acquiring the battery voltage information V′1, the constant current load control unit 411 controls (OFF) the constant current load unit 405 (step S108), and the remaining amount calculation unit 414 performs the following arithmetic processing and comparison ( Step S109).
V′th1 <V′0−K ′ ΔV ′ (3 formulas)
ΔV ′ = V′0−V′1 (4 formulas)

  Here, V′th1 is a predetermined lower limit for camera operation, K ′ is an arbitrary coefficient predetermined for each camera operation input from the operation switch 408, and is stored in the remaining amount calculation information recording unit 413. Stored.

  When the remaining amount calculation unit 414 performs the above calculation processing and comparison (step S109), and it is determined that the calculation processing result is greater than the lower limit V′th1 at which the camera can operate, it is input in step S101. The operation is determined to be executable (step S110), and when a desired operation is completed, the operation is completed (step S111). Thereafter, the process returns to step S101 to enter a standby state for the next input.

  If it is determined in step S109 that the calculation processing result is equal to or lower than the lower limit value V′th1 at which the camera can operate as a result of the calculation processing and comparison, the operation input in step S101 cannot be executed. The battery replacement mark is displayed on the remaining amount display unit 407 after determination (step S112). Next, the power supply control unit 410 controls (turns OFF) the power supply unit 402 (step S113).

  Note that the lower limit value V′th0 at which the remaining battery amount estimation test is not performed and the predetermined lower limit value V′th1 at which the camera can be operated may be changed for each type of camera operation input by the operation switch 408.

  Further, it may be changed by an arbitrary coefficient K ′ predetermined for each camera operation input from the operation switch 408. For example, when performing a battery remaining amount estimation test for performing an operation of flowing a large current to charge a lens barrel or strobe, the lower limit value K ′ is set to a large value. Further, the control may be performed so as to increase the lower limit value V′th0 for which the battery remaining amount estimation test is not performed and the predetermined lower limit value V′th1 for camera operation. These variable reference values are also stored in the remaining amount calculation information recording unit 413.

  As described above, it is possible to reduce the battery power estimation test before each operation is performed and to reduce power consumption.

(Second Embodiment)
A second embodiment of the present invention will be described below. FIG. 3 is a block diagram illustrating a configuration example of the digital camera of this embodiment. Hereinafter, the configuration will be described.
A battery voltage detection unit 206 and a constant current load unit 205 capable of passing a constant current are connected in parallel to the battery 201. The constant current load unit 205 is configured to be capable of ON / OFF control.

  A power supply unit 202 that supplies power to the digital camera system 203 supplies a plurality of constant voltages required by the digital camera system 203 by performing voltage conversion from the voltage of the battery 201. The control unit 204 controls the entire digital camera system. FIG. 3 shows only the blocks related to the battery remaining amount estimation circuit.

  The power supply control unit 210 controls the power supply unit 202 to turn on the voltage supplied from the power supply unit 202 required by the operation of the digital camera and to turn off the unnecessary voltage. The operation switch 208 is a switch for giving an operation instruction such as a release switch or a mode switch for selecting an operation mode. The switch state detection unit 209 is connected to the operation switch 208 and monitors the state of the operation switch 208.

  The constant current load control unit 211 controls ON / OFF of the constant current load unit 205 based on the switch state information detected by the switch state detection unit 209. The battery voltage detection signal divided by the battery voltage detection unit 206 is supplied to the A / D conversion unit 212. The A / D conversion unit 212 converts the voltage information of the battery into a digital value.

  The remaining amount calculation unit 214 uses the battery voltage information sent from the A / D conversion unit 212 and the coefficient provided for each operating state recorded in the remaining amount calculation information recording unit 213 to estimate the remaining battery level. I do. The remaining amount display unit 207 displays the battery remaining amount estimation result calculated by the remaining amount calculation unit 214. Reference numeral 215 denotes a timer circuit which counts the time from the end of the operation input from the operation switch 208 until the next operation instruction is input.

Next, the operation of the digital camera of this embodiment will be described using the flowchart of FIG.
First, it waits until the camera operation instruction 1 is input from the operation switch 208 (step S301). When the camera operation instruction 1 is input from the operation switch 208, the digital camera system 203 acquires the current battery voltage information V ″ 0 digitally converted by the A / D converter 212 via the battery voltage detector 206. (Step S302).

  Next, after acquiring the battery voltage information V ″ 0, the remaining amount calculation unit 214 stores the battery voltage information V ″ 0 and the remaining amount calculation information recording unit 213, which will be described later, and is determined in advance. Comparison is made with the lower limit value V ″ th0 for which the test is not performed (step S303).

  As a result of the comparison in step S303, if V "th0 <V" 0, it is determined that the operation input in step S301 is executable, and the camera operation corresponding to the camera operation instruction input from the operation switch 408 is performed. The operation is started (step S304), and when the desired operation is completed, the operation is completed (step S305). Thereafter, the process returns to step S301 to enter a standby state for the next input.

  Further, as a result of the comparison in step S303, if V "th0≥V" 0, the constant current load control unit 211 controls (ON) the constant current load unit 205, and a predetermined desired load current I "is determined. L is supplied from the battery (step S306), and battery voltage information V ″ 1 obtained by digitally converting the battery voltage at that time by the A / D converter 212 is acquired (step S307).

After acquiring the battery voltage information V ″ 1, the constant current load control unit 211 controls (OFF) the constant current load unit 205 (step S308), and the remaining amount calculation unit 214 performs the following arithmetic processing and comparison (step) S309).
V "th1 <V" 0-K "ΔV" (5 formulas)
ΔV "= V" 0-V "1 (Expression 6)

  Here, V "th1 is a predetermined lower limit value for camera operation, K" is an arbitrary coefficient predetermined for each camera operation input from the operation switch 208, and is stored in the remaining amount calculation information recording unit 213. Stored.

  In the remaining amount calculation unit 214, when the calculation process result and the comparison (step S309) are performed and the calculation process result is determined to be V "th1 or less, the operation input in step S301 is determined to be unexecutable. Then, a battery replacement mark is displayed on the remaining amount display unit 207 (step S310), and the power supply control unit 210 controls (OFF) the power supply unit 202 (step S311).

  If it is determined in step S309 that the arithmetic processing result is greater than V "th1 as a result of the arithmetic processing and comparison, it is determined that the operation input in step S301 is executable, and the operation switch The camera operation corresponding to the camera operation instruction input from 408 is started (step S312), and when the desired operation is completed, the operation is completed (step S313). 203 controls (ON) the timer circuit, and then starts counting the time until the camera operation input is performed from the operation switch 208 (step S314).

  Next, the process proceeds to step S315 to enter a standby state for an operation instruction. When the camera operation instruction 2 is input from the operation switch 208, the digital camera system 203 controls (OFF) the timer circuit (step S316), and compares whether the operation instruction 2 is the same operation as the operation instruction 1 or not. Is performed (step S317).

  If the operation instruction 2 is an operation different from the operation instruction 1 as a result of the comparison in step S317, the process returns to step S302, the battery voltage V "0 is measured again, and the process according to the above-described flow is executed again.

When the operation instruction 2 is the same operation as the operation instruction 1 as a result of the comparison in step S317, the time T "th from step S314 to step S316 and the remaining amount calculation information recording unit 213 are determined in advance. Comparison is made with the given arbitrary time T ″ _ON (step S318).

As a result of the comparison in step S318, if it is determined that T " _ON is longer than T" th, the process returns to step S302, the battery voltage V "0 is measured again, and the process according to the above-described flow is performed again. .

On the other hand, as a result of the comparison in step S318, when it is determined that T " _ON is shorter than T" th, it is determined that the operation instruction 2 can be executed, and the operation is started (step S319). When finished, the operation is completed (step S313).

  It should be noted that the lower limit value V "th0 at which the battery remaining amount estimation test is not performed, the predetermined lower limit value V" th1 at which the camera can operate, the time T "th from step S314 to step S316, and the like are input by the operation switch 208. It may be changed according to each camera operation.

  Further, it may be changed by an arbitrary coefficient K ″ determined in advance for each camera operation input from the operation switch 208. For example, a battery for performing an operation of flowing a large current to charge a lens barrel or a strobe When performing the remaining amount estimation test, K "is set to a large value, and the lower limit value V" th0 for which the remaining battery amount estimation test is not performed and the predetermined lower limit value V "th1 for camera operation are increased. Take control. Conversely, control may be performed so that the time T "th from step S314 to step S316 is shortened.

These variable reference values are also stored in the remaining amount calculation information recording unit 213. Even when the operation instruction 2 is different from the operation instruction 1 in step S317, if the operation instruction 2 can operate with lower power than the operation instruction 1, the flow may proceed to step S318.
By performing the procedure as described above, it is possible to reduce the number of executions of the battery remaining amount estimation test before each operation is performed, and it is possible to reduce power consumption.

(Other embodiments according to the present invention)
Each means constituting the electronic device and each step of the control method of the electronic device in the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable recording medium recording the program are included in the present invention.

  In addition, the present invention can be implemented as, for example, a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be applied to a system including a plurality of devices. The present invention may be applied to an apparatus composed of a single device.

  In the present invention, a software program (in the embodiment, a program corresponding to the flowcharts shown in FIGS. 2 and 4) for realizing the functions of the above-described embodiments is directly or remotely supplied to the system or apparatus. In addition, this includes a case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, and the like.

  Examples of the recording medium for supplying the program include a floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

1 is a block diagram illustrating a configuration example of a digital camera according to a first embodiment of the present invention. 5 is a flowchart illustrating the operation of the digital camera according to the first exemplary embodiment of the present invention. It is a block diagram which shows the 2nd Embodiment of this invention and demonstrates the structural example of a digital camera. It is a flowchart which shows the 2nd Embodiment of this invention. It is a block diagram explaining the structural example of the digital camera which shows a prior art example. It is a flowchart explaining the operation example of the digital camera of a prior art example.

Explanation of symbols

201 battery 202 power supply unit 203 digital camera system 204 control unit 205 constant current load unit 206 battery voltage detection unit 207 remaining amount display unit 208 operation switch 209 switch state detection unit 210 power supply control unit 211 constant current load control unit 212 A / D conversion Unit 213 remaining amount calculation information recording unit 214 remaining amount calculation unit 215 timer circuit

Claims (18)

A power supply unit that converts a voltage supplied from the battery into a preset voltage;
A constant current load for passing a predetermined constant current from the battery; and
A battery voltage detection unit for detecting a first battery voltage in a state where the constant current load unit is stopped, and detecting a second battery voltage in a state where the constant current load unit is operated;
An operation unit for inputting an operation instruction to operate the electronic device;
A comparison unit that compares the first battery voltage with a preset voltage when an operation instruction is input from the operation unit;
The first battery voltage detected by the battery voltage detection unit and the second battery voltage when the comparison result by the comparison unit is equal to or lower than a predetermined voltage set in advance. An electronic apparatus comprising: a remaining amount calculating unit that calculates a remaining battery amount based on the electronic device. A power supply unit that converts a voltage supplied from the battery into a preset voltage;
A constant current load for passing a predetermined constant current from the battery; and
A battery voltage detection unit for detecting a first battery voltage in a state where the constant current load unit is stopped, and detecting a second battery voltage in a state where the constant current load unit is operated;
An operation unit for inputting an operation instruction to operate the electronic device;
A remaining amount calculation unit that calculates a remaining battery level based on the first battery voltage and the second battery voltage detected by the battery voltage detection unit when an operation instruction is input from the operation unit. When,
A control unit that prohibits the battery remaining amount calculating operation by the remaining amount calculating unit until a predetermined time elapses after the remaining amount calculating unit calculates the remaining battery amount. Electronic equipment. A power supply unit that converts a voltage supplied from the battery into a preset voltage;
A constant current load for passing a predetermined constant current from the battery; and
A battery voltage detection unit for detecting a first battery voltage in a state where the constant current load unit is stopped, and detecting a second battery voltage in a state where the constant current load unit is operated;
An operation unit for inputting an operation instruction to operate the electronic device;
When the first operation instruction is input from the operation unit, the remaining battery charge is calculated based on the first battery voltage detected by the battery voltage detection unit and the second battery voltage. A quantity calculator;
A time measuring unit for measuring the time until the second operation instruction is input from the operation unit after the remaining battery amount is calculated by the remaining amount calculating unit;
When the second operation instruction and the first operation instruction are the same and the time counted by the time measuring unit is equal to or less than a predetermined time, the remaining battery level is calculated by the remaining amount calculating unit. An electronic apparatus comprising: a control unit that prohibits a quantity calculation operation. A power supply unit that converts a voltage supplied from the battery into a preset voltage;
A constant current load for passing a predetermined constant current from the battery; and
A battery voltage detection unit for detecting a first battery voltage in a state where the constant current load unit is stopped, and detecting a second battery voltage in a state where the constant current load unit is operated;
An operation unit for inputting an operation instruction to operate the electronic device;
When the first operation instruction is input from the operation unit, the remaining battery charge is calculated based on the first battery voltage detected by the battery voltage detection unit and the second battery voltage. A quantity calculator;
A time measuring unit for measuring the time until the second operation instruction is input from the operation unit after the remaining battery amount is calculated by the remaining amount calculating unit;
When the power consumption for executing the second operation instruction is less than or equal to the power consumption for executing the first operation instruction, and the time measured by the time measuring unit is less than or equal to a predetermined time The electronic apparatus further includes a control unit that prohibits the battery remaining amount calculating operation by the remaining amount calculating unit.   The electronic apparatus according to claim 2, wherein the predetermined time is determined for each operation input from the operation unit.   The electronic device according to claim 2, wherein the predetermined time is variable by an arbitrary coefficient determined for each operation input from the operation unit.   The electronic device according to claim 1, wherein the predetermined voltage set in advance is determined for each operation instruction input from the operation unit.   The electronic device according to claim 1, wherein the predetermined voltage set in advance is variable by an arbitrary coefficient determined for each operation instruction input from the operation unit. .   The remaining amount calculation unit has a remaining amount calculation information recording unit for storing a reference value used for calculating the presence or absence of a remaining battery level that can operate according to the operation instruction input from the operation unit. The electronic device according to any one of claims 1 to 8, wherein: A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A device control method,
A comparison step of comparing the first battery voltage with a preset specified voltage when an operation instruction is input from the operation unit;
When the comparison result of the comparison step is that the first battery voltage is equal to or lower than a preset specified voltage, the first battery voltage detected by the battery voltage detection unit, and the second battery voltage And a remaining amount calculating step for calculating a remaining battery amount based on the electronic device. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A device control method,
A remaining amount calculating step of calculating a remaining battery level based on the first battery voltage and the second battery voltage detected by the battery voltage detecting unit when an operation instruction is input from the operation unit. When,
And a control step of prohibiting the battery remaining amount calculating operation by the remaining amount calculating unit until a predetermined time elapses after the remaining battery amount is calculated in the remaining amount calculating step. To control electronic equipment. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A device control method,
When the first operation instruction is input from the operation unit, the remaining battery charge is calculated based on the first battery voltage detected by the battery voltage detection unit and the second battery voltage. A quantity calculating step;
A time measuring step of measuring a time until a second operation instruction is input from the operation unit after calculating the battery remaining amount by the remaining amount calculating step;
An operation instruction determination step for determining whether or not the second operation instruction and the first operation instruction are the same;
When the second operation instruction and the first operation instruction are the same and the time measured in the time measuring step is equal to or less than a predetermined time, the remaining battery amount is calculated by the remaining amount calculating unit. And a control step for prohibiting the amount calculating operation. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A device control method,
When the first operation instruction is input from the operation unit, the remaining battery charge is calculated based on the first battery voltage detected by the battery voltage detection unit and the second battery voltage. A quantity calculating step;
A time measuring step of measuring a time until a second operation instruction is input from the operation unit after calculating the battery remaining amount by the remaining amount calculating step;
A power consumption determination step for determining whether power consumption for executing the second operation instruction is equal to or less than power consumption for executing the first operation instruction;
When the power consumption for executing the second operation instruction is less than or equal to the power consumption for executing the first operation instruction, and the time measured by the time measuring unit is less than or equal to a predetermined time And a control step of prohibiting the battery remaining amount calculating operation by the remaining amount calculating unit. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A program characterized by causing a computer to execute a device control method,
A comparison step of comparing the first battery voltage with a preset specified voltage when an operation instruction is input from the operation unit;
When the comparison result of the comparison step is that the first battery voltage is equal to or lower than a preset specified voltage, the first battery voltage detected by the battery voltage detection unit, and the second battery voltage A program for causing a computer to execute a method for controlling an electronic device, comprising: a remaining amount calculating step for calculating a remaining amount of a battery based on the computer. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A program characterized by causing a computer to execute a device control method,
A remaining amount calculating step of calculating a remaining battery level based on the first battery voltage and the second battery voltage detected by the battery voltage detecting unit when an operation instruction is input from the operation unit. When,
And a control step of prohibiting the battery remaining amount calculating operation by the remaining amount calculating unit until a predetermined time elapses after the remaining battery amount is calculated in the remaining amount calculating step. A program for causing a computer to execute a control method for an electronic device. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A program characterized by causing a computer to execute a device control method,
When the first operation instruction is input from the operation unit, the remaining battery charge is calculated based on the first battery voltage detected by the battery voltage detection unit and the second battery voltage. A quantity calculating step;
A time measuring step of measuring a time until a second operation instruction is input from the operation unit after calculating the battery remaining amount by the remaining amount calculating step;
An operation instruction determination step for determining whether or not the second operation instruction and the first operation instruction are the same;
When the second operation instruction and the first operation instruction are the same and the time measured in the time measuring step is equal to or less than a predetermined time, the remaining battery amount is calculated by the remaining amount calculating unit. A program for causing a computer to execute a method for controlling an electronic device, comprising: a control step for prohibiting a quantity calculating operation. A power supply unit that converts a voltage supplied from the battery into a preset voltage, a constant current load unit for flowing a predetermined constant current from the battery, and a state in which the constant current load unit is stopped An electronic device having a battery voltage detection unit that detects a battery voltage of 1 and detects a second battery voltage in a state in which the constant current load unit is operated, and an operation unit for inputting an operation instruction to operate the electronic device A program characterized by causing a computer to execute a device control method,
When the first operation instruction is input from the operation unit, the remaining battery charge is calculated based on the first battery voltage detected by the battery voltage detection unit and the second battery voltage. A quantity calculating step;
A time measuring step of measuring a time until a second operation instruction is input from the operation unit after calculating the battery remaining amount by the remaining amount calculating step;
A power consumption determination step for determining whether power consumption for executing the second operation instruction is equal to or less than power consumption for executing the first operation instruction;
When the power consumption for executing the second operation instruction is less than or equal to the power consumption for executing the first operation instruction, and the time measured by the time measuring unit is less than or equal to a predetermined time A program for causing a computer to execute a method of controlling an electronic device, comprising: a control step of prohibiting the battery remaining amount calculating operation by the remaining amount calculating unit.   A computer-readable recording medium on which the program according to any one of claims 14 to 17 is recorded.

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