JPH0743439A - Battery remaining computing apparatus - Google Patents

Battery remaining computing apparatus

Info

Publication number
JPH0743439A
JPH0743439A JP6042223A JP4222394A JPH0743439A JP H0743439 A JPH0743439 A JP H0743439A JP 6042223 A JP6042223 A JP 6042223A JP 4222394 A JP4222394 A JP 4222394A JP H0743439 A JPH0743439 A JP H0743439A
Authority
JP
Japan
Prior art keywords
voltage
time
battery
power supply
warning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP6042223A
Other languages
Japanese (ja)
Inventor
Chiharu Tanaka
千春 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP6042223A priority Critical patent/JPH0743439A/en
Publication of JPH0743439A publication Critical patent/JPH0743439A/en
Withdrawn legal-status Critical Current

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  • Tests Of Electric Status Of Batteries (AREA)
  • Emergency Alarm Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE:To generate a warning when a predetermined time is reached by computing time at which a power source voltage lowers to a reference voltage from a drop in voltage of a battery power source after a fixed time measured passes and a difference between a power source voltage and the reference voltage after the passage of a fixed time. CONSTITUTION:System control circuit controls the measuring, computing and warning of a power source voltage. First, the counting of time is started after the passage of a fixed time is checked and a battery voltage is inputted to measure a voltage by A/D conversion thereof. The power source voltage at this moment is compared with a reference voltage and when it is larger, a power reduction flag is checked. When the flag is H, a returning is made or when it is L, the present voltage drop is calculated from the preceding voltage and a difference between the present voltage and a power source OFF voltage is calculated as remaining voltage. Then, a remaining time is calculated from the remaining voltage and the voltage drop and when the remaining time is smaller than a scheduled alarm time, an alarm display demand and a battery voltage reduction flag are set to complete a processing. Thus, time is determined accurately until the operation of a battery is disabled thereby enabling the keeping of usable time constant after a warning.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、バッテリ−を使用する
装置等におけるバッテリ−の残量演算装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery residual amount calculating device in a device using a battery.

【0002】[0002]

【従来技術】従来、バッテリ−を使用する装置等におけ
るバッテリ−の減電圧警告は、装置の使用の仕方に関係
なく、すなわち電力を多く消費する使い方をしようとあ
まり電力を消費しないような使い方をしようと、バッテ
リ−電圧が一定値以下になったことを検出することによ
り行なわれていた。
2. Description of the Related Art Conventionally, a battery low voltage warning in a device or the like using a battery should be used regardless of how the device is used; Attempts have been made to detect that the battery voltage has dropped below a certain value.

【0003】[0003]

【発明が解決しようとする課題】しかし、上記のような
装置では、装置の使用の仕方によっては警告発生時から
使用不能に達する時間が異なり、バッテッリ−の適切な
交換時期が把握できなかった。一方、警告が発せられる
と同時にバッテッリ−を交換したのではバッテリ−の容
量を十分使いきれないため不経済であり、また、バッテ
リ−の交換頻度も高くなり非常に使いづらかった。
However, in the above-mentioned device, the time from when the warning is issued to when the device becomes unusable varies depending on how the device is used, and it is not possible to grasp the proper replacement time of the battery. On the other hand, if the battery is replaced at the same time as the warning is issued, it is uneconomical because the capacity of the battery cannot be fully used, and the frequency of replacement of the battery is high and it is very difficult to use.

【0004】本発明は、このような課題に着目してなさ
れたものであり、装置の動作モ−ドに応じたバッテリ−
の使用可能時間を把握することが可能なバッテリ−残量
演算装置を提供することを目的とする。
The present invention has been made in view of these problems, and a battery according to the operation mode of the apparatus is used.
It is an object of the present invention to provide a battery-remaining amount calculation device capable of grasping the usable time of a battery.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明に係るバッテリ−残量演算装置は、所定の時
点とそこから一定時間経過した時点におけるバッテリ−
の電源電圧を測定する電源電圧測定手段と、測定値に基
づき上記一定時間における電圧降下および一定時間経過
した時点におけるバッテリ−の電源電圧と基準電圧との
差を求め、上記電圧降下の値および上記一定時間経過し
た時点におけるバッテリ−の電源電圧と基準電圧との差
に基づき電源電圧が基準電圧に降下するまでの時間を演
算する演算手段と、を具備して構成される。
In order to achieve the above object, a battery-remaining amount calculating device according to the present invention is a battery at a predetermined time point and at a time point when a certain time has elapsed from the battery time point.
Power supply voltage measuring means for measuring the power supply voltage of the battery, and the voltage drop at the fixed time and the difference between the power supply voltage of the battery and the reference voltage at the time when the fixed time has elapsed based on the measured value, and the value of the voltage drop and the value And a calculation unit that calculates a time until the power supply voltage drops to the reference voltage based on the difference between the power supply voltage of the battery and the reference voltage at the time when a fixed time has elapsed.

【0006】また、電源電圧が基準電圧に降下するまで
の時間が予め定められた時間と一致したときに、所定の
警告を行う警告手段を具備していてもよい。さらに、予
め定められた時間は、バッテリ−により駆動される装置
の同一条件下の使用における現時点から動作不能時点ま
での時間としてもよい。
A warning means may be provided for issuing a predetermined warning when the time until the power supply voltage drops to the reference voltage matches a predetermined time. Further, the predetermined time may be the time from the present time to the inoperable time when the battery-powered device is used under the same conditions.

【0007】[0007]

【作用】本発明によるバッテリ−残量演算装置によれ
ば、電源電圧測定手段が、所定の時点とそこから一定時
間経過した時点におけるバッテリ−の電源電圧を測定
し、演算手段が、測定値に基づき上記一定時間における
電圧降下および一定時間経過した時点におけるバッテリ
−の電源電圧と基準電圧との差を求め、上記電圧降下の
値および上記一定時間経過した時点におけるバッテリ−
の電源電圧と基準電圧との差に基づき電源電圧が基準電
圧に降下するまでの時間を演算する。
According to the battery-remaining amount calculation device of the present invention, the power supply voltage measuring means measures the power supply voltage of the battery at a predetermined time point and at a time point when a fixed time has elapsed from the predetermined time point, and the calculation means outputs the measured value. Based on the voltage drop at the fixed time and the difference between the power supply voltage of the battery and the reference voltage at the time when the fixed time has elapsed, the value of the voltage drop and the battery at the time when the fixed time has elapsed
The time until the power supply voltage drops to the reference voltage is calculated based on the difference between the power supply voltage and the reference voltage.

【0008】また、警告手段を具備している場合には、
電源電圧が基準電圧に降下するまでの時間が予め定めら
れた時間と一致したときに、所定の警告を行う。また、
警告後同一条件で装置を使用し続けた場合、予め定めら
れた時間が所定の場合、予め定められた時間が経過する
と装置が動作不能となる。
If a warning means is provided,
A predetermined warning is given when the time until the power supply voltage drops to the reference voltage matches a predetermined time. Also,
If the device is continuously used under the same condition after the warning, the device becomes inoperable after the predetermined time has elapsed if the predetermined time is the predetermined time.

【0009】[0009]

【実施例】次に本発明の実施例について図面を参照しな
がら説明する。図1は本発明に係るバッテリ−残量演算
装置が適用された情報再生装置の一例を示す構成図であ
り、VTRへの適用例である。本装置においては、記録
時に入力端子6から入力されたビデオ信号は、ビデオ信
号入力回路5と記録信号処理回路4等の周知回路で所定
の処理が施され、スイッチ3の端子3aと磁気ヘッド2
を介して磁気テ−プ1に記録される。
Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing an example of an information reproducing apparatus to which a battery-remaining amount calculating apparatus according to the present invention is applied, which is an example of application to a VTR. In this apparatus, a video signal input from the input terminal 6 at the time of recording is subjected to predetermined processing by a known circuit such as the video signal input circuit 5 and the recording signal processing circuit 4, and the terminal 3a of the switch 3 and the magnetic head 2 are processed.
Is recorded on the magnetic tape 1 via the.

【0010】再生時には、磁気ヘッド2を介して磁気テ
−プ1から読み出された再生信号が、スイッチ3の端子
3bを通って再生信号処理回路7と再生信号検波回路1
1に送出される。再生信号処理回路7で所定の再生処理
を施された再生信号は、混合回路8において文字信号発
生回路12から発生された文字信号と混合され、ビデオ
信号出力回路9を介して出力端子10に出力ビデオ信号
として送出される。
At the time of reproduction, the reproduction signal read from the magnetic tape 1 through the magnetic head 2 passes through the terminal 3b of the switch 3 and the reproduction signal processing circuit 7 and the reproduction signal detection circuit 1
Sent to 1. The reproduction signal subjected to the predetermined reproduction processing in the reproduction signal processing circuit 7 is mixed with the character signal generated from the character signal generation circuit 12 in the mixing circuit 8 and output to the output terminal 10 via the video signal output circuit 9. It is transmitted as a video signal.

【0011】再生信号検波回路11は、映像信号の記録
部と未記録部を判別するための信号を出力するもので検
波信号をシステムコントロ−ル回路13に送出する。操
作部18は、再生、早送り、巻戻し等の各種動作を操作
により指示するもので、操作信号をシステムコントロ−
ル回路13に送出する。システムコントロ−ル回路13
には、バッテリ−22からの電源が電源電圧インタフェ
−ス回路21を介して供給され、また内部時計動作用の
バックアップ電源20が供給さるとともに、E2 PRO
M19に格納されている各種調整デ−タが供給されてい
る。
The reproduction signal detection circuit 11 outputs a signal for discriminating the recorded portion and the unrecorded portion of the video signal, and sends the detection signal to the system control circuit 13. The operation unit 18 is used to instruct various operations such as reproduction, fast-forward, and rewind by operation, and outputs operation signals to the system controller.
To the circuit 13. System control circuit 13
Is supplied with power from a battery 22 via a power supply voltage interface circuit 21, and is supplied with a backup power supply 20 for operating an internal clock, as well as with E 2 PRO.
Various adjustment data stored in M19 is supplied.

【0012】システムコントロ−ル回路13は、検出さ
れたFG信号に基づいてキャプスタンモ−タ駆動回路1
4を介してキャプスタンモ−タ15を駆動し、同様に、
FG、PG信号に基づいてシリンダモ−タ駆動回路16
を介してシリンダモ−タ17を駆動する。図2には、図
1におけるシステムコントロ−ル回路13の処理手順が
示されている。
The system control circuit 13 is a capstan motor drive circuit 1 based on the detected FG signal.
Drive the capstan motor 15 via 4,
Cylinder motor drive circuit 16 based on FG and PG signals
Cylinder motor 17 is driven via. FIG. 2 shows a processing procedure of the system control circuit 13 in FIG.

【0013】リセット・スタ−ト後、初期設定処理が施
された後(ステップS1)、製造工程における調整モ−
ドであるか否かが判定される(ステップS2)。調整モ
−ドであれば調整処理を行なって(ステップS3)、ス
テップS2の処理に戻り、調整モ−ドでなければ、モニ
タ上に文字を表示させるOSD(On Screen Driver)
の自動調整処理を行なった後(ステップS4)、通常の
メインプログラムをスタ−トさせる(ステップS5)。
After the reset start and after the initial setting process (step S1), the adjustment mode in the manufacturing process is set.
It is determined whether or not it is the mode (step S2). If it is the adjustment mode, the adjustment process is performed (step S3), and the process returns to the step S2. If it is not the adjustment mode, the OSD (On Screen Driver) for displaying characters on the monitor.
After performing the automatic adjustment process (step S4), the normal main program is started (step S5).

【0014】先ず、電源がOFFか否かが判定され(ス
テップS6)、OFFでなければ、OSD表示処理(ス
テップS7)、電源ON時の時計表示処理(ステップS
8)、操作キ−入力処理(ステップS9)、各種センサ
−入力処理(ステップS10)及び再生、早送り、巻き
戻し等のモ−ド変更処理(ステップS11)を実行した
後、所定の計時時間が経過し、外部入力等のメイン処理
の終了を待ち(ステップS12)、終了したらステップ
S6の処理に戻る。
First, it is determined whether or not the power is off (step S6). If not, the OSD display processing (step S7) and the clock display processing when the power is on (step S).
8), operation key input processing (step S9), various sensor input processing (step S10), and mode change processing (step S11) such as reproduction, fast forward, rewind, etc., and then a predetermined time count. After the lapse of time, the main processing such as external input is awaited to be completed (step S12), and when the processing is completed, the processing returns to step S6.

【0015】ステップS6において、電源がOFFの場
合には、電源OFF処理(ステップS13)と電源OF
F時の時計処理を実行した後(ステップS14)、ステ
ップS6の処理に戻る。次に本発明の実施例に係るバッ
テリ−残量警告処理について説明する。本実施例は、バ
ッテリ−電圧の装置の動作停止電圧に至る時間を予測す
ることによりバッテリ−残量に係る警告発生時間を一定
にし、使用者が警告発生からの使用可能時間を容易に把
握できると共に使い勝手を改善するものである。
In step S6, if the power is off, the power off process (step S13) and power off
After the clock processing at F o'clock is executed (step S14), the process returns to step S6. Next, the battery-remaining amount warning processing according to the embodiment of the present invention will be described. In the present embodiment, by predicting the time when the battery-voltage reaches the operation stop voltage of the device, the warning generation time related to the battery-remaining amount is made constant, and the user can easily grasp the usable time from the warning generation. It also improves usability.

【0016】ところで、バッテリ−を電源として用いる
従来のVTRにおいては、バッテリ−電圧がある一定電
圧になると警告を発生し、更に電圧が低下したら自動的
に動作を停止する機能をもち電圧低下時の動作トラブル
を防止している。例えば、図3(A)に示すように消費
電流の少ない場合には、バッテリ−電圧がアラ−ム電圧
まで低下した時点t21から、例えば5分経過後の時点t
22に電源電圧をOFFする。また同図(B)に示すよう
に、消費電流の多い場合には、アラ−ム電圧まで低下し
た時点t23から、例えば3分経過時点t24で電源電圧を
OFFする。
By the way, in a conventional VTR using a battery as a power source, a warning is issued when the battery voltage reaches a certain constant voltage, and when the voltage further decreases, the operation is automatically stopped, and there is a function when the voltage decreases. It prevents operational troubles. For example, when the current consumption is small as shown in FIG. 3 (A), for example, a time t after 5 minutes has elapsed from the time t21 when the battery voltage has dropped to the alarm voltage.
Turn off the power supply voltage to 22. Further, as shown in FIG. 7B, when the current consumption is large, the power supply voltage is turned off at a time point t24 when, for example, 3 minutes have elapsed from the time point t23 when the voltage dropped to the alarm voltage.

【0017】そこで、本実施例では、バッテリ−電圧の
使用時間に伴なう低下カ−ブの傾きを、図4に示す如
く、 ΔVBATT/Δtx=(VB2−VB1)/(tx2 −Ttx1) として求め、電源OFF電圧(VOFF )に至るまでの残
量時間tOFF を tOFF =(VOFF −VB2)/(ΔVBATT/Δtx) として求めることにより、バッテリ−使用時、アラ−ム
(警告)が発せられてから動作停止に至る時間を動作モ
−ドに関わらず一定にして、使用者による警告発生から
の使用可能時間の把握を容易とする。
Therefore, in this embodiment, the slope of the decreasing curve with the use time of the battery voltage is set as ΔVBATT / Δtx = (VB2-VB1) / (tx2-Ttx1) as shown in FIG. Then, the remaining time tOFF until reaching the power-off voltage (VOFF) is calculated as tOFF = (VOFF-VB2) / (ΔVBATT / Δtx). The time from the start of the operation to the stop of the operation is made constant regardless of the operation mode, so that the user can easily grasp the available time after the warning is issued.

【0018】図5はバッテリ−電圧の低下カ−ブが特有
な場合(Ni−Cdバッテリ−を用いた場合)について
の動作を説明するための図である。図示の如く、消費電
流の少ないケ−スと多いケ−スの低下特性から理解され
るように、電源OFF電圧に至るまでは、それぞれ傾き
1と傾き2の直線特性を有するが、電源OFF電圧付近
以下では急激に低下する。そこで、tOFF を求める際に
は、補正値t2 =tα1 =tα2 として考え、 tOFF =tOFF −tα を求める。
FIG. 5 is a diagram for explaining the operation in the case where the battery voltage drop curve is peculiar (when the Ni-Cd battery is used). As shown in the figure, as can be understood from the lowering characteristics of the case where the current consumption is low and the case where the current consumption is high, there are linear characteristics of slope 1 and slope 2 up to the power-off voltage. Below the vicinity, it drops sharply. Therefore, when obtaining tOFF, the correction value t2 = tα1 = tα2 is considered, and tOFF = tOFF-tα is obtained.

【0019】次に、本実施例のバッテリ−電圧検出処理
動作手順を図6を参照して説明する。 これらの処理
は、電源電圧測定手段、演算手段、警告手段を構成する
システムコントロ−ル回路13により行われ、図6
(B)に示すように、図2の各種センサ−処理の過程で
実行される(ステップS151)。同図(A)を参照す
ると、先ず、Δt時間経過したか否かを判定し(ステッ
プS131)、経過していなければリタ−ンとし、経過
していればΔtの計測をスタ−トし(ステップS13
2)、バッテリ−電圧をA/D変換入力してVB を得る
(ステップS133)。次に、VB が基準電圧であるV
OFF より大きいか否かを判定し(ステップS134)、
大きければ減電フラグを確認し、つまり、すでにアラ−
ム動作に入っているか否かを確認し(ステップS13
5)“H”であればリタ−ンとし、“L”であれば前回
デ−タ(VBB)−今回デ−タ(VB )を電圧降下ΔVBA
TTとし(ステップS136)、今回デ−タ(VB )−V
OFF を残電圧Vzとする(ステップS137)。続い
て、VzとΔVBATTから残時間を演算して求め(ステッ
プS138)、残時間と予め定められた時間であるとこ
ろのアラ−ム時間(例えば5分)を比較し(ステップS
139)、残時間がアラ−ム時間より大きければリタ−
ンとし、そうでなければアラ−ム表示要求を設定し、バ
ッテリ−減電圧フラグを“H”に設定して(ステップS
140)、処理を終了する。ステップS134におい
て、VB がVOFF より大きくなければ、つまり、電源が
下がり過ぎている場合には、モ−ド停止要求、電源OF
F要求を設定して(ステップS141)、処理を終了す
る。
Next, the battery-voltage detection processing operation procedure of this embodiment will be described with reference to FIG. These processes are performed by the system control circuit 13 which constitutes a power supply voltage measuring means, a calculating means, and a warning means.
As shown in FIG. 2B, it is executed in the process of various sensors in FIG. 2 (step S151). Referring to FIG. 3A, first, it is judged whether or not Δt time has elapsed (step S131), and if it has not elapsed, a return is made, and if it has elapsed, the measurement of Δt is started ( Step S13
2) Then, the battery voltage is A / D converted and input to obtain VB (step S133). Next, VB is the reference voltage V
It is determined whether it is larger than OFF (step S134),
If it is larger, check the power reduction flag, that is, already
It is confirmed whether or not it is in motion (step S13
5) If it is "H", it is a return, and if it is "L", the voltage drop of the previous data (VBB) -current data (VB) ΔVBA
TT (step S136), this time data (VB) -V
OFF is set to the residual voltage Vz (step S137). Then, the remaining time is calculated from Vz and ΔVBATT (step S138), and the remaining time is compared with the alarm time (for example, 5 minutes) which is a predetermined time (step S138).
139), if the remaining time is greater than the alarm time, return
Otherwise, an alarm display request is set, and the battery-reduction voltage flag is set to "H" (step S
140) and the process ends. In step S134, if VB is not larger than VOFF, that is, if the power supply is too low, a mode stop request and power supply OF are made.
The F request is set (step S141), and the process ends.

【0020】上述のように、本実施例のバッテリ−残量
演算装置によれば、バッテリ−駆動による装置の動作モ
−ドに応じた動作不能までの時間を比較的正確に把握す
ることができる。また、警告後動作不能までの時間を一
定にすることができるので使用勝手が向上する。
As described above, according to the battery-remaining amount computing device of the present embodiment, it is possible to relatively accurately ascertain the time until the device becomes inoperable according to the operation mode of the device driven by the battery. . In addition, since the time from the warning until the operation is disabled can be made constant, the usability is improved.

【0021】[0021]

【発明の効果】本発明によれば、装置の動作モ−ドに応
じたバッテリ−の使用可能時間を比較的正確に知ること
ができるので、使用勝手が向上する。また、警告後、例
えば装置が動作不能となる基準電圧に降下するまでの時
間を一定にすることにより一層使用勝手が向上する。
According to the present invention, since the usable time of the battery according to the operation mode of the apparatus can be known relatively accurately, the usability is improved. Further, the usability is further improved by making the time from the warning to the time when the voltage drops to the reference voltage at which the device becomes inoperable constant.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係るバッテリ−残量演算装置が適用さ
れた情報再生装置の一例を示す構成図である。
FIG. 1 is a configuration diagram showing an example of an information reproducing device to which a battery-remaining amount calculating device according to the present invention is applied.

【図2】図1におけるシステムコントロ−ル回路13の
処理手順を示す図である。
FIG. 2 is a diagram showing a processing procedure of a system control circuit 13 in FIG.

【図3】本実施例に係るバッテリ−残量警告処理につい
て説明するための図である。
FIG. 3 is a diagram for explaining a battery-remaining amount warning process according to the present embodiment.

【図4】本実施例に係るバッテリ−残量警告処理を説明
するための図である。
FIG. 4 is a diagram for explaining a battery-remaining amount warning process according to the present embodiment.

【図5】本実施例に係るバッテリ−残量警告処理を説明
するための図である。
FIG. 5 is a diagram for explaining a battery-remaining amount warning process according to the present embodiment.

【図6】図5に示すバッテリ−電圧検出処理動作手順を
示す図である。
6 is a diagram showing a battery-voltage detection processing operation procedure shown in FIG. 5;

【符号の説明】[Explanation of symbols]

13 システムコントロ−ル回路 18 操作部 21 電源電圧インタ−フェ−ス回路 22 バッテリ− 13 system control circuit 18 operation unit 21 power supply voltage interface circuit 22 battery

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】所定の時点とそこから一定時間経過した時
点におけるバッテリ−の電源電圧を測定する電源電圧測
定手段と、 測定値に基づき上記一定時間における電圧降下および一
定時間経過した時点におけるバッテリ−の電源電圧と基
準電圧との差を求め、上記電圧降下の値および上記一定
時間経過した時点におけるバッテリ−の電源電圧と基準
電圧との差に基づき電源電圧が基準電圧に降下するまで
の時間を演算する演算手段と、 を具備したことを特徴とするバッテリ−残量演算装置。
1. A power supply voltage measuring means for measuring a power supply voltage of a battery at a predetermined time point and a time point after a predetermined time has passed, and a voltage drop at the predetermined time point based on the measured value and a battery at a time point when the predetermined time has passed. The difference between the power supply voltage and the reference voltage, and the time until the power supply voltage drops to the reference voltage based on the value of the voltage drop and the difference between the power supply voltage of the battery and the reference voltage at the time when the fixed time has elapsed. A battery-remaining amount computing device comprising: a computing unit for computing.
【請求項2】電源電圧が基準電圧に降下するまでの時間
が予め定められた時間と一致したときに、所定の警告を
行う警告手段を具備したことを特徴とする請求項1記載
のバッテリ−残量演算装置。
2. The battery according to claim 1, further comprising warning means for issuing a predetermined warning when the time until the power supply voltage drops to the reference voltage matches a predetermined time. Remaining amount calculation device.
【請求項3】予め定められた時間が、バッテリ−により
駆動される装置の同一条件下の使用における現時点から
動作不能時点までの時間であることを特徴とする請求項
2記載のバッテリ−残量演算装置。
3. The battery-remaining amount according to claim 2, wherein the predetermined time is a time from a current time point to a non-operation time point when the device driven by the battery is used under the same conditions. Arithmetic unit.
JP6042223A 1994-03-14 1994-03-14 Battery remaining computing apparatus Withdrawn JPH0743439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6042223A JPH0743439A (en) 1994-03-14 1994-03-14 Battery remaining computing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6042223A JPH0743439A (en) 1994-03-14 1994-03-14 Battery remaining computing apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP4353550A Division JPH06208743A (en) 1992-12-14 1992-12-14 Information reproduction unit

Publications (1)

Publication Number Publication Date
JPH0743439A true JPH0743439A (en) 1995-02-14

Family

ID=12630043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6042223A Withdrawn JPH0743439A (en) 1994-03-14 1994-03-14 Battery remaining computing apparatus

Country Status (1)

Country Link
JP (1) JPH0743439A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009253343A (en) * 2008-04-01 2009-10-29 Rion Co Ltd Hearing aid device
CN102147450A (en) * 2010-12-22 2011-08-10 航天恒星科技有限公司 Monitoring system for electric quantity of lithium battery
CN107167739A (en) * 2017-05-17 2017-09-15 力信(江苏)能源科技有限责任公司 A kind of electrokinetic cell life-span prediction method
CN108429312A (en) * 2018-03-28 2018-08-21 北京小米移动软件有限公司 Charge control method and device
JP2020108223A (en) * 2018-12-26 2020-07-09 株式会社Jvcケンウッド Charging control device, charging case, charging system, charging control method, and program

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009253343A (en) * 2008-04-01 2009-10-29 Rion Co Ltd Hearing aid device
CN102147450A (en) * 2010-12-22 2011-08-10 航天恒星科技有限公司 Monitoring system for electric quantity of lithium battery
CN107167739A (en) * 2017-05-17 2017-09-15 力信(江苏)能源科技有限责任公司 A kind of electrokinetic cell life-span prediction method
CN107167739B (en) * 2017-05-17 2019-11-05 力信(江苏)能源科技有限责任公司 A kind of power battery life-span prediction method
CN108429312A (en) * 2018-03-28 2018-08-21 北京小米移动软件有限公司 Charge control method and device
JP2020108223A (en) * 2018-12-26 2020-07-09 株式会社Jvcケンウッド Charging control device, charging case, charging system, charging control method, and program

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