JP2000350376A - Portable electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute functions suited for a fitted battery by judging the power characteristics of the secondary battery or the battery of the battery being fitted to a fitting means based on power characteristic information that is supplied to a communication means. SOLUTION: A power supply control circuit 25 identifies whether the allowable load power of a battery pack 50 that is fitted to the battery-fitting part of an equipment body 10 is large or small based on allowable load power information that is received from the battery pack 50. When the battery pack 50 is a battery in a large-capacity type, a normal mode for using all functions is selected. On the other hand, when the battery pack 50 is a secondary battery that is not in a large-capacity type, a function limitation mode for limiting the functions of the equipment body 10 is selected, and a power control circuit 25 reads operation information, supplies it to a control circuit 26 for controlling by a microcomputer 21, thus identifying the type of the fitted battery and forcibly limiting the operation of the equipment body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device such as a video camera device, a portable telephone, a portable information terminal device, etc. The present invention relates to a portable electronic device capable of restricting functions of a device main body.

[0002]

2. Description of the Related Art Conventionally, a video camera apparatus has a device main body and a battery pack which is detachable from the device main body. In this battery pack, a battery cell is configured by a secondary battery such as a lithium ion battery, a NiCd battery, or a nickel hydride battery. Many video camera devices using this type of battery pack as a power supply are AC
/ DC power supply can be used in combination, and such a video camera apparatus changes the load control condition for the power supply between a case where a battery pack is used and a case where an AC / DC power supply is used. I have. Normally, when a battery pack is used as a power source, the allowable load power is limited, and thus the use of the video camera device when the load power is large is forcibly prohibited.

[0003] By the way, the battery pack is designed to have a high capacity. The battery pack has the same output terminal shape and output voltage, increases the number of parallel connected battery cells, and increases the allowable load power. There is something. Some video camera apparatuses can mount a plurality of types of battery packs having different allowable load powers on the main body of the apparatus.

[0004]

However, a video camera device capable of mounting a plurality of types of battery packs having different allowable load powers on the main body of the apparatus has a case where a battery pack is used and a case where an AC / DC power supply is used. The load control conditions for the power supply were changed between the two cases, but the load control for the power supply was not performed between battery packs having different allowable load powers.

In addition, when a battery pack having a small allowable load power is attached to the main body of the apparatus, if the functions of the video camera device are executed too much, an overcurrent flows through the battery pack having a small allowable load power, and the load is reduced. It gets bigger. For this reason, when designing this type of video camera device, it is necessary to match the battery pack with the smallest allowable load power among the battery packs that can be mounted on the device main body, and the degree of freedom in design is limited. Was. And
Even when a battery pack having a large allowable load power is mounted, the function of the video camera device is limited.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a portable electronic device capable of executing a function suitable for a mounted battery by identifying a power characteristic of a battery mounted on the device body. I do.

[0007]

In order to solve the above-mentioned problems, a portable electronic device according to the present invention stores a secondary battery cell or battery and power characteristic information of the secondary battery or battery. Mounting means on which a battery having control means is mounted, communication means for receiving power characteristic information from the battery, and secondary power of the battery mounted on the mounting means based on the power characteristic information supplied to the communication means. And control means for judging the battery or the power characteristics of the battery and controlling the operation of the device body. That is, in this portable electronic device, a plurality of batteries having different power characteristics can be mounted, and the control unit reads out the power characteristic information from the battery control unit.
Identifies the type of battery installed and forcibly restricts the operation of the device.

Here, the control means acquires the internal connection information of the secondary battery cell or the battery built in the battery from the power characteristic information, and controls the operation of the device body based on the internal connection information. The control unit has a storage unit in which operation information of the device main body corresponding to the power characteristic information is stored, reads out the operation information based on the power characteristic information from the battery, and controls the operation of the device main body. Further, the control means includes:
Based on the power characteristic information, the number of secondary battery cells or batteries connected in parallel in the battery is identified, and the function of the device body is controlled based on the identification result.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A video camera apparatus 1 to which a portable electronic device according to the present invention is applied will be described below with reference to the drawings.

As shown in FIGS. 1, 2 and 3, the video camera apparatus 1 has a device main body 10 for imaging a subject.
And a battery pack 50 that supplies power to the device main body 10. The device body 10 is formed in a substantially rectangular shape with a portable size. The apparatus main body 10 is provided with an image pickup section 11 for picking up an image of a subject, for example, using a CCD element on the front surface thereof. In addition, an infrared light 12 is provided near the imaging unit 11 on the front surface of the device main body 10 so that an object can be imaged even in a dark environment. In addition, a viewfinder 13 serving as a first display unit is provided on a back surface opposite to the front surface on which the imaging unit 11 is provided. The viewfinder 13 allows the user to see the subject being photographed when the user looks at the eye. On one side surface of the device main body 10, there is provided a recording medium storage unit 14 into which a tape cassette using a magnetic tape as a recording medium or a disk cartridge using a disk-shaped recording medium as a recording medium is provided. On the bottom surface side of the other side surface portion, a battery mounting portion 15 to which a battery pack serving as a power source of the device main body 10 is detachably mounted is provided. The battery mounting portion 15 is provided with a plus battery terminal 18a and a minus battery terminal 18b for supplying power from the battery pack 50, as will be described in detail later, and a communication terminal 19 for transmitting and receiving with the battery pack 50. Is provided.

A liquid crystal display panel 16 is provided on the upper surface side of the other side surface of the apparatus main body 10 as a second display means for displaying a subject being photographed together with the viewfinder 13. The liquid crystal display panel 16 is supported on the other side surface of the device main body 10 via a hinge 17 so as to rotate between an open state shown by a solid line in FIG. 2 and a closed state shown by a dotted line in FIG. I have. The liquid crystal display panel 16 is closed when the photographer uses the viewfinder 13, and when the photographer wants to show the photographed contents to a third party other than the photographer,
It is opened. Specifically, the viewfinder 13 and the liquid crystal display panel 16 include a first mode in which only the viewfinder 13 is used, a second mode in which only the liquid crystal display panel 16 is used, a viewfinder 13 and the liquid crystal display panel 16. On / off switching is performed in the third mode in which both of the display panels 16 are used.

The battery pack 50 mounted on the battery mounting portion 15 has a rechargeable battery cell such as a lithium ion battery disposed therein.
A positive terminal 56a and a negative terminal 56b for supplying power to the device and a communication terminal 57 for transmitting and receiving to and from the device main body 10 are provided. The battery pack 50 is connected to the plus / minus battery terminals 18a, 1
8b and the communication terminal 19 so that the plus terminal 5
A plurality of types of battery packs having the same terminal shape of 6a, minus terminal 56b, and communication terminal 57, having the same output voltage, and different allowable load power are used. That is, this allowable load power increases as the number of parallel cells of the battery cells increases, and decreases as the number of parallel cells of the battery cells decreases. Here, two types of battery packs having different allowable load powers are used. The video camera device 1 as described above is used in a state where the battery pack 50 is mounted on the battery mounting portion 15.

As described above, the video camera device 1 includes the device main body 10 and the battery pack 50. Then, as shown in FIG.
Of the battery pack 50, and detects the type of the battery pack 50 to limit the function.
Is provided.

Here, a battery pack 50 is attached to the battery mounting portion 15 of the device body 10.
5, a plus battery terminal 18a to which a plus terminal on the battery pack 50 side is connected and a minus battery terminal 18b to which a minus terminal on the battery pack 50 side are connected. And the device body 1
0, the plus battery terminal 18a and the battery pack 5
0 positive terminal is connected, negative battery terminal 1
Power is supplied by connecting the negative terminal of the battery pack 50 to 8b.

The battery mounting portion 15 of the device body 10
Is provided with a communication terminal 19 for transmitting and receiving the battery pack 50. The communication terminal 19 is connected to a communication terminal on the battery pack 50 side. When the battery pack 50 is mounted, the device body 10 transmits a request signal for requesting information about the battery pack 50 to the battery pack 50 amplified by the buffer amplifier 19a via the communication terminal 19, and the battery pack 50 A signal relating to the battery pack 50 is transmitted to the device main body 10 in response to a request signal from the device main body 10, and is amplified by the buffer amplifier 19b.

The microcomputer 21 constituting the device main body 10 includes:
A communication circuit 22 for receiving information on the battery cells from the battery pack 50; a calculation circuit 23 for generating remaining amount information of the battery pack 50 based on the information on the battery pack 50 received by the communication circuit 22; A display control circuit 24 for generating a display signal based on the remaining amount information generated in 23.

A battery pack 50 is attached to the battery mounting portion 15.
Is mounted, the communication terminal on the battery pack 50 side is connected to the communication terminal 19 formed on the battery mounting portion 15, and battery information relating to the battery pack 50 is supplied. Is supplied to a calculation circuit 23 constituting the microcomputer 21 via the communication circuit 22.

The calculation circuit 23 is supplied with the discharge current integrated remaining amount obtained by multiplying the discharge time of the battery pack constituting the battery information by the discharge time, and temperature information indicating the temperature of the battery cells arranged in the battery pack 50. Is done. The calculation circuit 23 uses power consumption information when the viewfinder 13 is used in advance, second power consumption information when the liquid crystal display panel 16 is used, and the viewfinder 13 and the liquid crystal display panel 16. And the third power consumption information at the time of execution.

When the battery pack 50 is discharged with constant power consumption, the integrated amount of the discharge current with respect to the discharge time is substantially proportional to the discharge time as shown in FIG. Here, when the lowest usable voltage (battery end voltage) of the video camera device 1 is determined, the point of the battery end voltage in FIG. 4 is between the start of discharge and the complete discharge (state in which there is no energy in the battery cell 51). Located between.

As shown in FIG. 5 to FIG. 7, the remaining amount of the integrated discharge current until the complete discharge with respect to the discharge time is determined by taking the end of the battery as the origin and drawing the coordinate axis, the vertical axis indicates the discharge until the end of the battery. The remaining amount of current is the remaining amount, and the horizontal axis is the remaining time until battery termination. Therefore, the remaining battery time can be calculated if the accumulated discharge current remaining until the end of the battery is known.

FIG. 5 is a diagram showing discharge characteristics when the viewfinder 13 is used, and FIG.
FIG. 7 is a diagram showing discharge characteristics when the liquid crystal display panel 16 is used, and FIG. 7 shows discharge characteristics when the viewfinder 13 and the liquid crystal display panel 16 are used. The power consumption of the device body 10 is larger when only the liquid crystal display panel 16 is used than when only the viewfinder 13 is used. It is larger when used with the display panel 16. Therefore, as shown in FIGS. 5 to 7, as the power consumption increases, the slope becomes steeper, and the ratio of the remaining time to the discharge current integrated remaining amount decreases. When the power consumption is large, the integrated remaining discharge current from the end of the battery to the complete discharge also changes due to the influence of the internal impedance of the battery pack 50.

This can be expressed by the following equation (1).
It becomes as shown in.

R = Qd × f (W ₁₋₃ ) = (Q−g (W ₁₋₃ )) × f (W ₁₋₃ ) (1) In the equation (1), R represents the time until the battery is stopped. Time (remaining time)
, Qd indicates the integrated amount of discharge current up to the end of the battery, W1 to ₃ indicate the power consumption (fixed value) of the video camera device 1, and f (W1 to ₃ ) indicates the fixed value and the power dependence. Q is a coefficient, and indicates a discharge current integrated remaining amount, and is g ( _W1-3 ).
Is a fixed value indicating the remaining battery power at the time of battery termination. Note that W
₁ is a power consumption value (fixed value) in the first mode using the viewfinder 13, and W ₂ is a power consumption value (fixed value) in the second mode using only the liquid crystal display panel 16. W ₃ is a power consumption value (fixed value) in the third mode used together with the viewfinder 13 and the liquid crystal display panel 16.

When calculating the time until battery termination (remaining time) (R) shown in the above equation (1), considering the temperature change of the battery cells built in the battery pack 50, the following equation (1) is used. It looks like 2).

R = Qd × f (W _1-3 ) × h ₁ (T) = (Q−g (W _1-3 ) × h ₂ (T)) × f (W _1-3 ) × h ₁ ( T) (2) Here, T in the equation (2) represents the temperature of the battery cell.
h ₁ (T) and h ₂ (T) indicate the temperature-dependent coefficients of the battery cells. Further, the discharge current integrated remaining amount Q, the temperature-dependent coefficient h _{1
(T), h 2 (T} ) is transmitted from the battery pack _{50, f (W 1~3),} g (W 1~3) are pre-stored in the calculation circuit 23. From equation (2), f
(W _{1 to 3),} respectively, h (W _{1 to 3)} temperature dependence coefficient h ₁
(T) and h ₂ (T) are multiplied.

The time (remaining time) (R) until the end of the battery generated by the calculation circuit 23 is calculated by the display control circuit 24.
Is supplied to the display control circuit 24 as shown in FIG.
Is based on the time until the battery is terminated (remaining time) (R), that is, the viewfinder 13 based on the remaining battery signal.
And / or generates battery remaining amount display information to be displayed on the liquid crystal display panel 16.

As shown in FIG. 1, the microcomputer 21 supplies a power supply to which allowable load power information, which is battery information of the battery pack 50 mounted on the battery mounting unit 15, is supplied together with the above-described accumulated discharge current. Control circuit 25
Is provided. The power supply control circuit 25 is supplied with allowable load power information according to the type of the battery pack 50 mounted on the battery mounting unit 15. The power supply control circuit 25 records first operation information on a normal mode in which all functions of the device main body 10 can be used and first operation information on a function restriction mode for restricting functions of the device main body 10. It has a storage unit 25a. Here, the normal mode is a mode in which the infrared light 12 and the liquid crystal display panel 16 can be used at the same time, that is, a mode in which the functions provided in the device main body 10 are not restricted at all. The apparatus body 1 for selectively prohibiting the use of the infrared light 12, the viewfinder 13, and the liquid crystal display panel 16 so that the subject can be imaged.
In this mode, the yesterday of 0 is forcibly restricted. In the function restriction mode, the power consumption of the device main body 10 is reduced by restricting the functions of the device main body 10, and when the battery pack 50 having a small allowable load power is mounted on the battery mounting portion 15, the battery pack This is a mode for reducing the load of 50.

When the battery pack 50 having a large allowable load power is mounted on the battery mounting portion 15, the power supply control circuit 25 selects a normal mode in which all functions of the device body 10 can be used, and When the low-power battery pack 50 is mounted, the power consumption is reduced, and the function restriction mode for restricting the functions of the device body 10 is selected. Then, the power supply control circuit 25 switches the drive of the viewfinder 13, the liquid crystal display panel 16, and the infrared light 12 based on either the first operation information or the second operation information indicating whether the normal mode is the function restriction mode. It is supplied to the control circuit 26.

The control circuit 26 constituting the microcomputer 21 comprises:
The photographer uses the viewfinder 13 from an eyepiece sensor 13a that is provided at a portion of the viewfinder 13 where the peripheral part of the photographer's eye is in contact and identifies whether the photographer is using the viewfinder 13 or not. Identification information is provided as to whether or not the information is being read. The eyepiece sensor 13a is a pressing switch, which is turned on when the photographer is in contact with the viewfinder 13 and the pressing element is pressed, and transmits identification information indicating that the photographer is using the viewfinder 13 to the control circuit 26. When the photographer is not looking at the viewfinder 13, the pressing element is turned off, and the switching circuit 29 is supplied with identification information indicating that the photographer is not using the viewfinder 13. Then, the control circuit 26
The on / off control of a changeover switch 32 for switching the power supply to the drive circuit 27 of the viewfinder 13 is controlled.

The control circuit 26 controls the liquid crystal display panel 1
Identification information as to whether or not the photographer has opened and used the liquid crystal display panel 16 is supplied from an open / close detection switch 17a provided on the hinge portion 17 supporting the liquid crystal display panel 6 and detecting the opening and closing of the liquid crystal display panel 16. This open / close detection switch 17a
Is a push switch, for example, which is turned on when the photographer opens the liquid crystal display panel 16, supplies identification information indicating that the photographer is using the liquid crystal display panel 16 to the control circuit 26, Is turned off when the liquid crystal display panel 16 is in the closed state and is not being used, and supplies the switching circuit 29 with identification information indicating that the photographer is not using the liquid crystal display panel 16. Then, the control circuit 26 controls on / off of a changeover switch 33 for switching power supply to the drive circuit 28 of the liquid crystal display panel 16.

Further, the control circuit 26 controls the infrared light 12
An operation signal for driving the infrared light 12 is supplied from an operation unit 31 composed of, for example, a press operation type button for inputting ON / OFF of the operation. Then, when an operation signal for driving the infrared light 12 is supplied to the control circuit 26, the control circuit 26 controls on / off of a switch 34 for switching the power supply of the infrared light 12.

The device body 10 having the microcomputer 21 as described above further includes a drive circuit 27 for driving the viewfinder 13, a drive circuit 28 for driving the liquid crystal display panel 16, and a drive circuit 28 for the viewfinder 13. DC / D for supplying power to the drive circuit 28 of the liquid crystal display panel 16
And a C converter 29.

The DC / DC converter 29 is connected to the plus / minus battery terminal 1 provided on the battery mounting portion 15.
8a and 18b, and power is supplied from the battery pack 50. And the DC / DC converter 29 is
It is connected to a drive circuit 27 of the viewfinder 13 and is connected to a changeover switch 32 for switching the drive circuit 27 on and off. The DC / DC converter 29 supplies power to the drive circuit 27 when the changeover switch 32, which is controlled to be on and off by the control circuit 26, is on, and makes the viewfinder 13 usable.

The DC / DC converter 29 is connected to the drive circuit 28 of the liquid crystal display panel 16 and
8 is connected to a changeover switch 33 for switching on and off. The DC / DC converter 29 supplies power to the drive circuit 28 when the changeover switch 33, whose on / off is controlled by the control circuit 26, is turned on.
To a usable state.

Further, the DC / DC converter 29 is connected to the infrared light 12 and is connected to a changeover switch 34 for switching the infrared light 12 on and off. When an operation signal indicating that the infrared light 12 is to be used is supplied from the operation unit 31 to the control circuit 26, the DC / DC converter 29 turns on the changeover switch 34 and supplies power to the infrared light 12. Enables shooting in dark environments. The DC / DC converter 29 is
When an operation signal indicating that the infrared light 12 is not used is supplied from the operation unit 31 to the control circuit 26, the changeover switch 34 is turned off.

As shown in FIG. 8, the viewfinder 13 and / or the liquid crystal display panel 16 display the display screen 35 with the time until the battery ends (the remaining time) generated by the display control circuit 24 constituting the microcomputer 21 described above. (R), that is, the remaining battery level is displayed based on the remaining battery level display information. That is, on the display screen 35, a time display section 36 indicating the remaining usable time by a number or the like, and the battery pack 5
A ratio display section 37 indicating the ratio of the current remaining battery level to the fully charged state of 0 is displayed. For example, the time display unit 3
6 is displayed as characters “40 minutes” (“40 min” in English) when the remaining time is 40 minutes, and the ratio display section 37
Is four or more depending on the remaining battery time,
Further, the remaining battery level is displayed by changing the level steplessly.

As shown in FIGS. 1 and 9, the battery pack 50 mounted on the battery mounting portion 15 of the device body 10 and supplying power to the device body 10 has a plurality of cells connected in parallel. A battery cell 51; a voltage detection circuit 52 for detecting a voltage between terminals of the battery cell 51; and a temperature detection sensor 53 for detecting a temperature of the battery cell 51
A charge / discharge current detection circuit 54 for detecting a charge / discharge current of the battery cell 51; and battery information relating to the battery pack 50 in accordance with signals from the voltage detection circuit 52, the temperature detection sensor 53, and the charge / discharge current detection circuit 54. And a microcomputer 55 for performing the operation.

As shown in FIG. 1, the battery pack 50 includes a plus terminal 56a and a minus terminal 5a formed in a fitting portion fitted in the battery mounting portion 15 of the device body 10.
6b, the fitting portion is fitted to the battery mounting portion 15, the plus terminal 56a is connected to the plus battery terminal 18a provided on the battery mounting portion 15 of the device body 10, and the minus end 56b is connected to the battery mounting portion. The power is supplied to the device main body 10 by being connected to the minus battery terminal 18b provided in the device 15. Also, the battery pack 5
In the fitting portion provided with the plus terminal 56a and the minus terminal 56b, the device body 10 and the battery pack 5 are provided.
Communication terminal 5 for communication of battery information related to 0
The communication terminal 57 is connected to the communication terminal 19 provided on the battery mounting portion 15 of the device body 10 when the fitting portion is fitted to the battery mounting portion 15. When the battery pack 50 is mounted on the battery mounting section 15 of the device main body 10, the request signal transmitted from the device main body 10 via the communication terminals 19 and 56 is amplified by the buffer amplifier 57 a and then supplied to the microcomputer 55. The microcomputer 5 amplifies battery information relating to the battery pack 50 by the buffer amplifier 57b in response to the request signal, and supplies the amplified battery information to the microcomputer 21 of the device body 10 via the communication terminals 57 and 19.

The battery pack 50 is provided with a plurality of battery packs having different allowable load powers, in this case, two types of battery packs. These battery packs are connected to the plus battery terminal 18a regardless of the type. The plus terminal 56a and the minus terminal 56b are formed in the same terminal shape so that they can be connected to the minus battery terminal 18b. The output voltages of the battery packs 50 having different allowable load powers are the same.

The battery cell 51 has a plurality of cells connected in parallel. The battery cell 51 is a battery cell having a large number of cells connected in parallel and having a large allowable load power, and a battery cell having a small number of cells connected in parallel and having a small allowable load power.

The voltage detecting circuit 52 for detecting the voltage between the terminals of the battery cell 51 is a voltage dividing resistor composed of resistors 58 and 59, as shown in FIG. The voltage between terminals of the battery cell 51 is detected by the resistor. When detecting the voltage between the terminals of the battery cell 51, the voltage detection circuit 52 supplies the detected voltage value to the voltage detection input terminal of the microcomputer 55.

The temperature detecting sensor 53 is composed of, for example, a temperature detecting thermistor, and is disposed near or in contact with the battery cell 51. When detecting the temperature of the battery cell 51, the temperature detection sensor 53 outputs the detected temperature value to the microcomputer 5.
5 is supplied to the temperature detection input terminal.

The charging / discharging current detecting circuit 54 for detecting the charging / discharging current of the battery cell 51, as shown in FIG.
An operational amplifier 61 for detecting a charging current and an operational amplifier 62 for detecting a discharging current are provided.

The non-inverting input terminal of the operational amplifier 61 for detecting the charging current is connected to the resistor 63 and the resistor 6 for detecting the current and voltage.
4 is connected to the negative electrode of the battery cell 51, and the inverting input terminal is connected to a negative feedback resistor 65 for setting an amplification factor and a resistor 6
6 and is connected to. The output terminal of the operational amplifier 61 is connected to the charging current detection input terminal of the microcomputer 55. Therefore, the operational amplifier 61 for detecting the charging current
Is the ratio of the current flowing through the battery pack 50 from the output terminal to the resistance value of the resistors 65 and 66 (the resistor 65
(The resistance value of the resistor 66 / the resistance value of the resistor 66).

The non-inverting input terminal of the operational amplifier 62 for detecting the discharge current is connected to the negative electrode of the battery cell 51 via the resistor 67 and the resistor 64 for detecting the current and voltage, and the inverting input terminal is connected to the negative feedback resistor. Is connected to the resistor 68 and the resistor 69. The output terminal of the operational amplifier 62 is connected to the discharge current detection input terminal of the microcomputer 55. Therefore, the operational amplifier 62 for detecting the discharge current uses the ratio of the resistance value of the resistors 68 and 69 (the resistance value of the resistor 68 / the resistance value of the resistor 69) to the current value flowing into the battery pack 50 at the time of discharging from the output terminal. And outputs the amplified voltage value.

Then, the voltage detection circuit 52 as described above,
The microcomputer 55 that generates information about the battery pack 50 in response to signals from the temperature detection sensor 53 and the charge / discharge current detection circuit 54 receives signals from the voltage detection circuit 52, the temperature detection sensor 53, and the charge / discharge current detection circuit 54 as input. An information generating circuit 71 for generating information on the battery pack 50; a storage unit 72 storing the type of the battery pack 50; and a communication circuit 73 for transmitting information on the battery pack 50 generated by the information generating circuit 71. Having.

A voltage value is input to the information generating circuit 71 from an operational amplifier 61 for detecting a charging current and an operational amplifier 62 for detecting a discharging current. The information generation circuit 71 includes a voltage value at the time of charging, which is input from the charging current detection operational amplifier 61 to the charging current detection input terminal, and the discharging current detection operational amplifier 6.
2, the level of the voltage value at the time of discharge inputted to the discharge current detection input terminal is detected, and charge / discharge current information is generated based on the voltage value at the time of charge / discharge and the resistance value of the resistor 64. The information generation circuit 71 has a timer 75 for counting the charging time and the discharging time. Then, the information generation circuit 71 generates a discharge current integrated remaining amount by multiplying the discharge current information by the discharge time counted by the timer 75. The temperature detection value supplied from the voltage detection circuit 52 to the voltage detection input terminal and the temperature detection value supplied from the temperature detection sensor 53 to the temperature detection input terminal are supplied to the information generation circuit 71. Then, the information generation circuit 71 generates a temperature dependence coefficient based on the detected temperature value.

The storage unit 72 stores internal connection information indicating the number of parallel connections of the cells constituting the battery cell 51, that is, allowable load power information indicating the allowable load power of the battery pack 50. When the battery 50 is mounted on the battery mounting portion 15 of the device main body 10, the information generating circuit 71 reads out the allowable load power information.

The battery pack 50 includes a nonvolatile memory 76. The nonvolatile memory 76 has an EEP-R
The OM stores data (cycle data) of the maximum number of charge / discharge cycles that the battery cell 51 can use. The information generation circuit 71 measures the number of charge / discharge cycles of the battery cell 51 based on the data (cycle data) of the maximum number of charge / discharge cycles from the nonvolatile memory 76 and the detected voltage from the voltage detection circuit 52. When the number of charge / discharge cycles 51 reaches the maximum number of charge / discharge cycles, battery life information is transmitted to the microcomputer 21 of the device body 10. When receiving the battery life information transmitted from the battery pack 50, the viewfinder 13 and / or the liquid crystal display panel 16 of the device main body 10 perform, for example, a display for urging the user to replace the battery pack 50. For example, a message such as "This battery is out of date, please replace it" is displayed on the viewfinder 13 and / or the liquid crystal display panel 16. Thus, a user such as a photographer can easily recognize the product life of the battery pack 50.

When the battery pack 50 is mounted on the battery mounting section 15, the communication circuit 73 relates to the battery pack 50 such as the integrated charge / discharge current value, temperature detection value, and allowable load power information supplied from the information generation circuit 71. The battery information is transmitted to the microcomputer 21 of the device main body 10.

The microcomputer 55 includes a microcomputer power supply 75
It is driven by supplying more power.

When the battery pack 50 is mounted on the battery mounting portion 15 of the apparatus main body 10 and used, the video camera device 1 having the above-described configuration is used as follows. The remaining battery level of the battery pack 50 is displayed. That is, as shown in FIG. 10, the microcomputer 21 of the device body 10
At 01, when the power of the device main body 10 is turned on, it is determined at step S102 whether or not communication with the battery pack 50 is possible. The microcomputer 21 transmits a request signal for requesting information on the battery pack 50 to the microcomputer 55 on the battery pack 50 side via the communication terminals 19 and 57. Then, the microcomputer 2 on the device body 10 side
1 receives a response signal from the microcomputer 55 of the battery pack 50, determines that communication with the battery pack 50 is possible, and proceeds to step S103. If there is no response signal, communication with the battery pack 50 is disabled. And terminates the process.

In step S103, the microcomputer 21
The communication circuit 22 receives the accumulated discharge current remaining amount and the temperature dependency coefficient generated by the information generation circuit 71 included in the microcomputer 55 of the battery pack 50, and executes Step S
Proceed to 104.

In step S104, the microcomputer 21
The control circuit 26 which configures the viewfinder 13 determines whether the current state is the first mode in which only the viewfinder 13 is used or the second mode in which only the liquid crystal display panel 16 is used. It is determined whether it is the third mode in which both of the liquid crystal display panels 16 are used. Specifically, the control circuit 26 determines the first mode when the eyepiece sensor 13a provided on the viewfinder 13 is on and the open / close switch 17a provided on the hinge 17 of the liquid crystal display panel 16 is off. . The control circuit 26
Means that the eyepiece sensor 13a is off and the open / close switch 17a
Is turned on, the mode is determined to be the second mode. Further, the control circuit 26 includes an eyepiece sensor 13a and an open / close switch 17a.
Are both on, it is determined to be the third mode.

In step S105, when the control circuit 26 determines that the current mode of the device main body 10 is the first mode, the control circuit 26 sends information indicating that the device main body 10 is currently in the first mode to the calculation circuit 23. Supply. Then, in step S106, the calculation circuit 23
Time until battery shutdown in remaining mode (remaining time)
(R) is calculated. Specifically, as shown in FIG. 5, the calculation circuit 23 previously stores the discharge current integrated remaining amount (Q) and the temperature-dependent coefficients h ₁ (T) and h ₂ (T) transmitted to the communication circuit 22. Using the power dependence coefficient f (W ₁ ) and the remaining battery remaining time g (W ₁ ), the time (remaining time) (R) until the battery is terminated is calculated.

R = (Q−g (W ₁ ) × h ₂ (T)) × f
(W ₁ ) × h ₁ (T) Then, in step S107, the calculation circuit 23
The display control circuit 24 displays the remaining time (R) in the first mode.
To supply. Then, the display control circuit 24 generates the remaining battery level display information to be displayed on the viewfinder 13 based on the time (remaining time) (R) until the battery ends in the first mode, as shown in FIG. Is displayed on the viewfinder 13 as shown in FIG.

If it is determined in step S104 that the control circuit 26 is in the second mode in which only the liquid crystal display panel 16 is used, the control circuit 26 determines in step S108 that the device main body 10 is currently in the second mode. Information indicating the mode is supplied to the calculation circuit 23. Then, in step S109, the calculation circuit 23
Time until battery shutdown in remaining mode (remaining time)
(R) is calculated. Specifically, as shown in FIG. 6, the calculation circuit 23 previously stores the discharge current integrated remaining amount (Q) and the temperature dependence coefficients h ₁ (T) and h ₂ (T) transmitted to the communication circuit 22. Using the power dependence coefficient f (W ₂ ) and the remaining battery remaining time g (W ₂ ), the time (remaining time) (R) until the battery is terminated is calculated.

R = (Q−g (W ₂ ) × h ₂ (T)) × f
(W ₂ ) × h ₁ (T) Then, in step S110, the calculation circuit 23
The display control circuit 24 displays the remaining time (R) in the second mode.
To supply. Then, the display control circuit 24 generates battery remaining amount display information to be displayed on the liquid crystal display panel 16 based on the time (remaining time) (R) until the battery ends in the second mode. 8 is displayed on the liquid crystal display panel 16.

If the control circuit 26 determines in the step S111 that the mode is the third mode in which both the viewfinder 13 and the liquid crystal display panel 16 are used,
In step S111, the control circuit 26 supplies information indicating that the device body 10 is currently in the third mode to the calculation circuit 23. Then, in step S112,
The calculation circuit 23 calculates the time (remaining time) (R) until the battery ends in the third mode. Specifically, as shown in FIG. 7, the calculation circuit 23 calculates the discharge current integrated remaining amount (Q) and the temperature dependent coefficient h transmitted to the communication circuit 22.
Time until the battery ends (remaining time) (R) using ₁ (T), h ₂ (T), the power dependence coefficient f (W ₃ ) and the remaining battery remaining time g (W ₃ ) stored in advance. Is calculated.

Then, in step S113, the calculation circuit 23 supplies the remaining time (R) in the third mode to the display control circuit 24. Then, the display control circuit 24
Generates battery remaining amount display information to be displayed on the viewfinder 13 and the liquid crystal display panel 16 based on the time (remaining time) (R) until the battery ends in the third mode. The display as shown is displayed on the viewfinder 13 and the liquid crystal display panel 16.

As described above, when the video camera device 1 is used with the battery pack 50 mounted on the battery mounting portion 15 of the device main body 10, the calculation circuit 23 constituting the microcomputer 21 in the device main body 10 uses the view circuit. Finder 13
And / or power dependence coefficient f ( _W1-3 ), which is the load power when the liquid crystal display panel 16 is used, and the remaining charge g at the time of battery termination.
(W ₁ to ₃ ) are stored in advance, and the power dependence coefficient f
(W _{1 to 3)} and the battery termination time remaining g (W _{1 to 3)} times until the battery termination using (remaining time) since it calculates the (R), if the liquid crystal display panel 16 by the user Thus, even when the opening / closing operation is performed continuously, it is possible to prevent the remaining battery level display displayed on the viewfinder 13 and / or the liquid crystal display panel 16 from varying.

As described above, the first mode using only the viewfinder 13, the second mode using only the liquid crystal display panel 16, and the third mode using both the viewfinder 13 and the liquid crystal display panel 16. Although the calculation circuit 23 stores the first to third power consumption values, which are fixed values, for each of the modes and describes the battery remaining amount method, the number of modes is determined by the first mode and the second mode described above. May be switched alone, and when additional display means is provided, more modes may be provided, and the remaining battery level information may be generated based on the power consumption information corresponding to each mode. Also, even in combination with other functions of the device main body, the battery remaining amount information corresponding to the combination may be displayed.

By the way, the video camera device 1 is of the type of the battery pack 50, that is, the battery pack 5
The normal mode and the functions of the device main body 10 in which all the functions provided in the device main body 10 can be used by identifying the allowable load power information determined by the number of cells in parallel that constitute the battery cell 51 of 0 Is switched to a function restriction mode for restricting the operation.

Specifically, as shown in FIG. 11, when the battery pack 50 is mounted on the battery mounting portion 15 of the device body 10, in step S121, the power supply control circuit 25 constituting the microcomputer 21 The allowable load power information stored in the storage unit 72 constituting the microcomputer 55 of the battery pack 50 together with the current integrated remaining amount (Q) and the temperature dependence coefficients h ₁ (T) and h ₂ (T) is transmitted to the communication circuits 73 and 2.
Read out via 2. Then, the power supply control circuit 25 proceeds to step S122 when the allowable load power information is obtained from the battery pack 50, and proceeds to step S122 when the allowable load power information is not obtained from the battery pack 50.
Proceeding to 123, the communication with the microcomputer 55 of the battery pack 50 is repeated.

In step S122, the power supply control circuit 25, based on the allowable load power information transmitted from the battery pack 50,
Of the battery pack 50 mounted on the battery pack is of a type having a large allowable load power or a type having a small allowable load power.

The power supply control circuit 25 is
When the battery pack 50 mounted on the device main body is of a large capacity type, the process proceeds to step S124, and the normal mode in which all the functions provided in the device main body 10 can be used is selected. Then, the power supply control circuit 25 controls the first mode in the normal mode.
Is read from the storage unit 25a, and the control circuit 26
To supply.

When the battery pack 50 mounted on the battery mounting section 15 is not of a large capacity type, the power supply control circuit 25 proceeds to step S125 and selects a function restriction mode for restricting the functions of the device body 10. Then, the power supply control circuit 25 reads the second operation information of the function restriction mode from the storage unit 25a and supplies the second operation information to the control circuit 26.

In the function restriction mode, only one of the liquid crystal display panel 16 and the infrared light 12 of the apparatus main body 10 can be used. In the function restriction mode, the viewfinder 13 and the liquid crystal display panel 16 can be used simultaneously.

As shown in FIG. 12, the control circuit 26 for controlling the changeover switch 34 of the infrared light 12 and the changeover switch 33 of the liquid crystal display panel 16 performs step S141.
In step S142, it is determined whether the open / closed detection switch 17a for detecting the open / closed state of the liquid crystal display panel 16 is on, that is, in a closed state. When the open / closed detection switch 17a is on, the process proceeds to step S142. The process proceeds to step S146.

In step S142, control circuit 26
Determines whether the infrared light flag indicating the on / off state of the operation unit 31 of the infrared light 12 is “1” indicating that the operation unit 31 is on. Then, the control circuit 26
When the infrared light flag is "1", the step S1
Proceeding to 43, when the infrared light flag is "0" indicating an off state, proceeding to step S144.

In step S143, control circuit 26
Sets the liquid crystal display panel flag indicating the on / off state of the open / close switch 17a of the liquid crystal display panel 16 to "1" indicating that the open / close switch 17a is on. When the infrared light flag is “0” in step S142, the control circuit 26 proceeds to step S14.
At 4, the liquid crystal display panel flag is set to "1", the changeover switch 33 is turned on, the liquid crystal display panel 16 is driven, and the process proceeds to step S146.

When the liquid crystal display panel flag is set to "1" in step S143, the control circuit 26 proceeds to step S145.
In step S146, the changeover switch 33 is turned on to drive the liquid crystal display panel 16, and the changeover switch 34 for performing the on / off control of the infrared light 12 when the infrared light flag is "1" is turned off.
Proceed to.

In step S146, control circuit 26
Determines whether the operation unit 31 of the infrared light 12 is on. The control circuit 26 proceeds to step S147 when the operation unit 31 is on, and ends the process when the changeover switch 34 is off.

At step S147, the control circuit 26
Determines whether the liquid crystal display panel flag is "1". Then, when the liquid crystal display panel flag is “1”, the control circuit 26 proceeds to step S148, and when the liquid crystal display panel flag is “0”, the control circuit 26 proceeds to step S149.

At step S148, the control circuit 26
Sets the infrared light flag to “1” and sets the value in step S15
At 0, the changeover switch 33 is turned on to drive the liquid crystal display panel 16, and the changeover switch 34 for performing the on / off control of the infrared light 12 with the infrared light flag being "1" is turned off.

When the liquid crystal display panel flag is "0" in step S147, the control circuit 26 sets the infrared light flag to "1" in step S149, and turns on the changeover switch 34 for performing on / off control of the infrared light 12. And the infrared light 12 is driven.

That is, the control circuit 26 prioritizes the driving of the liquid crystal display panel 16 over the driving of the infrared light 12 in the function restriction mode. Further, the control circuit 26
When the liquid crystal display panel 16 is driven, the changeover switch 34 is turned off with the infrared light flag set to “1”, so that, for example, the liquid crystal display panel 16 is closed and the open / close detection switch 17a is turned off. By turning on the changeover switch 34, the infrared light 12 can be driven.

As described above, when the battery pack 50 having a small allowable load power is mounted, the video camera apparatus 1 is set to the function restriction mode and the use of the infrared light 12 is forcibly restricted. Excessive load on the battery pack 50 can be prevented. Further, in the video camera device 1, there is no need to design the function of the device body 10 according to the battery pack 50 having a small allowable load power, so that the degree of freedom in the function design is increased. In addition, since the video camera device 1 can use a plurality of types of battery packs 50,
Convenience can be improved.

Although the case where the selective function is restricted between the liquid crystal display panel 16 and the infrared light 12 in the function restriction mode has been described above, the restricted function is not limited to this. Further, the type of the battery pack 50 mounted on the device main body 10, that is, the type of the battery pack having different allowable load power is not limited to two types, and may be more.

The video camera apparatus 1 to which the present invention has been applied has been described with reference to the drawings. However, the present invention is not limited to this, and may be applied to, for example, portable telephones and portable information terminal apparatuses. It can also be applied to electronic devices.

[0081]

According to the portable electronic device of the present invention,
By reading the power characteristic information from the battery control means, the control means can identify the type of the attached battery and forcibly restrict the operation of the device body. Therefore, for example, when a battery with a small allowable load power is mounted, by restricting the operation of the device main body, it is possible to prevent an excessive load from being applied to the battery with a small allowable load power. In addition, since the operation of the portable electronic device is restricted depending on the type of the battery to be mounted, it is not necessary to design the device body in accordance with the battery having the smallest allowable load power. In addition, since the portable electronic device can be equipped with batteries having different power characteristics, the convenience can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a video camera device to which the present invention has been applied.

FIG. 2 is an external perspective view of the video camera device as viewed from the front side.

FIG. 3 is a rear view of the video camera device, and is an external perspective view of the video camera device showing a state where a liquid crystal display panel is opened.

FIG. 4 is a diagram showing a relationship between an integrated amount of discharge current of a battery and time.

FIG. 5 is a diagram illustrating a relationship between a discharge current integrated remaining amount of a battery and time in a first mode using only a viewfinder.

FIG. 6 is a diagram showing a relationship between a discharge current integrated remaining amount of a battery and time in a second mode using only a liquid crystal display panel.

FIG. 7 is a diagram showing a relationship between a discharge current integrated remaining amount of a battery and time in a third mode using both a viewfinder and a liquid crystal display panel.

FIG. 8 is a diagram showing battery remaining amount information displayed on a viewfinder and a liquid crystal display panel.

FIG. 9 is a block diagram of a battery pack mounted on the device main body.

FIG. 10 is a flowchart illustrating a procedure for calculating remaining battery capacity information.

FIG. 11 is a flowchart showing a procedure for identifying a normal mode and a function restriction mode.

FIG. 12 is a flowchart illustrating a procedure for restricting a function of the device main body in the function restriction mode.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Video camera apparatus, 10 apparatus main body, 13 viewfinder, 15 battery mounting part, 16 liquid crystal display panel, 21 microcomputer, 23 calculation circuit, 24 display control circuit, 25 power control circuit, 25a storage section, 31 operation section, 50 battery Pack, 51 battery cells, 5
2 voltage detection circuit, 53 temperature detection sensor, 54 charge / discharge detection circuit, 55 microcomputer, 71 information generation circuit, 7
2 Storage unit

[Procedure amendment]

[Submission date] July 22, 1999 (July 7, 1999
2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

As described above, the video camera device 1 includes the device main body 10 and the battery pack 50. Then, as shown in FIG. 1, the device main body 10
Of the battery pack 50, and detects the type of the battery pack 50 to limit the function.
Is provided.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

The battery mounting portion 15 of the device body 10
Is provided with a communication terminal 19 for transmitting and receiving the battery pack 50. The communication terminal 19 is connected to a communication terminal on the battery pack 50 side. When the battery pack 50 is mounted, the device body 10 transmits a request signal for requesting information about the battery pack 50 to the battery pack 50 amplified by the buffer amplifier 19b via the communication terminal 19, and the battery pack 50 A signal related to the battery pack 50 is transmitted to the device main body 10 in response to a request signal from the device main body 10, and this signal is amplified by the buffer amplifier 19a.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

The control circuit 26 constituting the microcomputer 21 comprises:
The photographer uses the viewfinder 13 from an eyepiece sensor 13a that is provided at a portion of the viewfinder 13 where the peripheral part of the photographer's eye is in contact and identifies whether the photographer is using the viewfinder 13 or not. Identification information is provided as to whether or not the information is being read. The eyepiece sensor 13a is a pressing switch, which is turned on when the photographer touches the viewfinder 13 and the pressing element is pressed, and outputs identification information indicating that the photographer is using the viewfinder 13 to the control circuit 26. When the photographer is not looking at the viewfinder 13, the pressing element is turned off, and identification information indicating that the photographer is not using the viewfinder 13 is supplied to the control circuit 26. Then, the control circuit 26
The on / off control of a changeover switch 32 for switching the power supply to the drive circuit 27 of the viewfinder 13 is controlled.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0030

[Correction method] Change

[Correction contents]

The control circuit 26 controls the liquid crystal display panel 1
Identification information as to whether or not the photographer has opened and used the liquid crystal display panel 16 is supplied from an open / close detection switch 17a provided on the hinge portion 17 supporting the liquid crystal display panel 6 and detecting the opening and closing of the liquid crystal display panel 16. This open / close detection switch 17a
Is a push switch, for example, which is turned on when the photographer opens the liquid crystal display panel 16, supplies identification information indicating that the photographer is using the liquid crystal display panel 16 to the control circuit 26, Is turned off when the liquid crystal display panel 16 is in the closed state and is not in use, and supplies the control circuit 26 with identification information indicating that the photographer is not using the liquid crystal display panel 16. Then, the control circuit 26 controls on / off of a changeover switch 33 for switching power supply to the drive circuit 28 of the liquid crystal display panel 16.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction contents]

As shown in FIG. 1, the battery pack 50 includes a plus terminal 56a and a minus terminal 5a formed in a fitting portion fitted in the battery mounting portion 15 of the device body 10.
6b, the fitting portion is fitted to the battery mounting portion 15, the plus terminal 56a is connected to the plus battery terminal 18a provided on the battery mounting portion 15 of the device body 10, and the minus end 56b is connected to the battery mounting portion. The power is supplied to the device main body 10 by being connected to the minus battery terminal 18b provided in the device 15. Also, the battery pack 5
In the fitting portion provided with the plus terminal 56a and the minus terminal 56b, the device body 10 and the battery pack 5 are provided.
Communication terminal 5 for communication of battery information related to 0
The communication terminal 57 is connected to the communication terminal 19 provided on the battery mounting portion 15 of the device body 10 when the fitting portion is fitted to the battery mounting portion 15. When the battery pack 50 is mounted on the battery mounting portion 15 of the device body 10, the request signal transmitted from the device body 10 via the communication terminals 19 and 57 is amplified by the buffer amplifier 57 a and then supplied to the microcomputer 55. The microcomputer 5 amplifies battery information relating to the battery pack 50 by the buffer amplifier 57b in response to the request signal, and supplies the amplified battery information to the microcomputer 21 of the device body 10 via the communication terminals 57 and 19.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction contents]

A voltage value is input to the information generating circuit 71 from an operational amplifier 61 for detecting a charging current and an operational amplifier 62 for detecting a discharging current. The information generation circuit 71 includes a voltage value at the time of charging, which is input from the charging current detection operational amplifier 61 to the charging current detection input terminal, and the discharging current detection operational amplifier 6.
2, the level of the voltage value at the time of discharge inputted to the discharge current detection input terminal is detected, and charge / discharge current information is generated based on the voltage value at the time of charge / discharge and the resistance value of the resistor 64. Further, the information generation circuit 71 has a timer 74 for counting the charging time and the discharging time. Then, the information generating circuit 71 generates a discharge current integrated remaining amount by multiplying the discharge current information by the discharge time counted by the timer 74. The temperature detection value supplied from the voltage detection circuit 52 to the voltage detection input terminal and the temperature detection value supplied from the temperature detection sensor 53 to the temperature detection input terminal are supplied to the information generation circuit 71. Then, the information generation circuit 71 generates a temperature dependence coefficient based on the detected temperature value.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0059

[Correction method] Change

[Correction contents]

If the control circuit 26 determines in the step S104 that the mode is the third mode in which both the viewfinder 13 and the liquid crystal display panel 16 are used,
In step S111, the control circuit 26 supplies information indicating that the device body 10 is currently in the third mode to the calculation circuit 23. Then, in step S112,
The calculation circuit 23 calculates the time (remaining time) (R) until the battery ends in the third mode. Specifically, as shown in FIG. 7, the calculation circuit 23 calculates the discharge current integrated remaining amount (Q) and the temperature-dependent coefficient h1 transmitted to the communication circuit 22.
Using (T), h2 (T), the power dependence coefficient f (W3) stored in advance, and the remaining battery remaining time g (W3), the time (remaining time) (R) until the battery is terminated is calculated.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0069

[Correction method] Change

[Correction contents]

As shown in FIG. 12, the control circuit 26 for controlling the changeover switch 34 of the infrared light 12 and the changeover switch 33 of the liquid crystal display panel 16 performs step S141.
In step S142, it is determined whether the open / closed detection switch 17a for detecting the open / closed state of the liquid crystal display panel 16 is on, that is, in an open state. The process proceeds to step S146.

[Procedure amendment 9]

[Document name to be amended] Drawing

[Correction target item name] Fig. 9

[Correction method] Change

[Correction contents]

FIG. 9

Claims (4)

[Claims] 1. A mounting means for mounting a battery having a secondary battery cell or battery, and control means storing power characteristic information of the secondary battery or battery, and receiving power characteristic information from the battery. Control means for determining the power characteristics of the secondary battery or the battery of the battery mounted on the mounting means based on the power characteristic information supplied to the communication means, and controlling the operation of the device body Portable electronic device comprising: 2. The control unit acquires internal connection information of the secondary battery cell or the battery built in the battery from the power characteristic information, and controls the operation of the device main body based on the internal connection information. The portable electronic device according to claim 1, wherein: 3. The control means has a storage unit in which operation information of a device corresponding to the power characteristic information is stored, reads out the operation information based on the power characteristic information from the battery, and The portable electronic device according to claim 1, wherein the operation is controlled. 4. The control means identifies the number of secondary battery cells or batteries connected in parallel in the battery based on the power characteristic information, and controls the function of the device main body based on the identification result. The portable electronic device according to claim 1, wherein: