JPH10148661A - Battery warning device - Google Patents

Battery warning device

Info

Publication number
JPH10148661A
JPH10148661A JP8318520A JP31852096A JPH10148661A JP H10148661 A JPH10148661 A JP H10148661A JP 8318520 A JP8318520 A JP 8318520A JP 31852096 A JP31852096 A JP 31852096A JP H10148661 A JPH10148661 A JP H10148661A
Authority
JP
Japan
Prior art keywords
voltage
battery
time
value
load
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.)
Granted
Application number
JP8318520A
Other languages
Japanese (ja)
Other versions
JP2957497B2 (en
Inventor
Motomi Hasegawa
元美 長谷川
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.)
NEC Saitama Ltd
Original Assignee
NEC Saitama 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 NEC Saitama Ltd filed Critical NEC Saitama Ltd
Priority to JP8318520A priority Critical patent/JP2957497B2/en
Publication of JPH10148661A publication Critical patent/JPH10148661A/en
Application granted granted Critical
Publication of JP2957497B2 publication Critical patent/JP2957497B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Transceivers (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a battery warning device that can be used easily where a user can freely set the time until a battery actually runs out after an alarm. SOLUTION: The device has a conversion table 12 that compares a voltage value/a voltage fluctuation value and a usable, remaining time based on the discharge characteristics of a battery. In this case, when a user sets time with an input means 11, a voltage value and a voltage fluctuation value corresponding to the time are inputted to a comparison means 13. In a battery 14, the above voltage value and voltage fluctuation value are detected successively by a voltage detection means 15 and a voltage value/a voltage fluctuation value calculation means 16, and an alarm means 18 is operated by a control means 17 due to the coincidence by the comparison means 13.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は電池警告装置、さら
に詳しくは携帯電話装置等において搭載している電池の
電力低下により使用不可能に近づいたことを知らせる電
池警告装置(いわゆるバッテリ・アラーム)に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery warning device, and more particularly, to a battery warning device (so-called battery alarm) for notifying that a battery mounted in a portable telephone device or the like has become unusable due to a decrease in power of a battery. .

【0002】[0002]

【従来の技術】本発明は電池を使用する機器一般に用い
ることがきる電池警告装置であるが、以下、携帯電話装
置に用いた場合を例に説明する。携帯電話装置に使用さ
れる従来のこの種の電池警告装置は、電池電圧を検出す
る手段を設け、検出される電池電圧が一定電圧以下に下
がった場合、警告を発する構成のものが一般的である。
然しながら携帯電話装置は良く知られているように、待
ち受け時と通話時とでは電力使用量が大きく異なり、ま
た警告を発するレベルは待ち受け時と通話時との両方を
考慮して設定されるため、電力消耗の大きい通話中にお
いては、警報(アラーム)が鳴ってから数秒後に通話が
不可能となり、従って通話中の会話が突然途切れてしま
う等の不都合が生じる場合がある。
2. Description of the Related Art The present invention relates to a battery warning device which can be used for general equipment using a battery. Hereinafter, a case where the present invention is used for a portable telephone device will be described. A conventional battery warning device of this type used for a mobile phone device is generally provided with a means for detecting a battery voltage, and a warning is issued when the detected battery voltage falls below a certain voltage. is there.
However, as is well known, the mobile phone device has a large difference in power consumption between the standby mode and the call mode, and the warning level is set in consideration of both the standby mode and the call mode. During a call that consumes a large amount of power, the call cannot be made a few seconds after the alarm is sounded, so that the conversation during the call may be interrupted suddenly.

【0003】また、送信時には一時的に電池電圧が低下
するため、電池電圧が低下しても実質的に送信が可能な
場合には警報を発しない構成とした特開昭63−267
026号公報「携帯型無線機」、さらに送信時と同じ電
力負荷を持つ擬似負荷を設け、実際には送信していなく
ても常に送信時を想定して警報を発する構成とした特開
平5−129982号公報「携帯用送受信機の電池電圧
低下警告回路」等の先行技術が存在するが、これらの先
行技術でも何時警報を発するかを利用者が自由に設定で
きない。
Further, since the battery voltage temporarily drops during transmission, no alarm is issued if transmission is practically possible even if the battery voltage drops.
Japanese Patent Application Laid-Open No. H5-2626 discloses a configuration in which a pseudo load having the same power load as at the time of transmission is provided and a pseudo load having the same power load as that at the time of transmission is always provided even when transmission is not actually performed. Although there are prior arts such as Japanese Patent No. 129982, “Battery voltage drop warning circuit of portable transceiver”, even in these prior arts, a user cannot freely set when to issue an alarm.

【0004】[0004]

【発明が解決しようとする課題】上記のような従来の電
池警告装置では、例えば上述の先行技術のように送信時
を想定して警報を発する構成のものであっても、利用者
の意志とは無関係に電圧低下により警報が発せられるた
め、使い勝手が悪いという問題点がある。例えば携帯電
話装置で通話中の場合には、実際の電池切れがアラーム
から1分経過後になるようにアラームを設定できれば、
アラームが鳴った場合、利用者は「電池切れになるの
で、少し後でかけ直します」等を相手先に伝えることが
できるが、アラームが鳴ってから数秒後に通話が途切れ
た場合には、電池切れを知らない相手先に不愉快な思い
をさせる等の不都合がある。従って、使用する機器およ
び利用者の慣習や使用態様によってアラームから実際の
電池切れまでの時間が自由に設定できれば使い勝手の良
い装置となる。
In the conventional battery warning device as described above, even if the warning is issued on the assumption of the time of transmission as in the above-mentioned prior art, for example, the user's will and However, there is a problem that the usability is poor because an alarm is issued regardless of the voltage drop regardless of the voltage. For example, if you are talking on a mobile phone, if you can set the alarm so that the battery runs out one minute after the alarm,
If the alarm sounds, the user can tell the other party that the battery runs out, so call back a little later, but if the call is interrupted a few seconds after the alarm sounds, the battery runs out. There are inconveniences, such as causing an unpleasant feeling to a partner who does not know the information. Therefore, if the time from the alarm to the actual running out of the battery can be set freely according to the equipment to be used and the customs and usage of the user, the device is easy to use.

【0005】本発明はかかる問題点を解決するためにな
されたものであり、警報から実際の電池切れまでの時間
を利用者が自由に設定できる使い勝手の良い電池警告装
置を提供することを目的としている。
The present invention has been made to solve such a problem, and has as its object to provide an easy-to-use battery warning device in which a user can freely set the time from an alarm to actual running out of the battery. I have.

【0006】[0006]

【課題を解決するための手段】電池の放電特性は使用さ
れている負荷が同じであれば一律であり、現在使用中の
電池がこの電池放電特性のどの点にあるかによって使用
可能残存時間を割り出すことができる。また現在使用中
の電池がこの電池放電特性のどの点にあるかは、定期的
に電圧値を検出し、電圧値と単位時間毎の電圧変動値と
によって特定することができる。本発明はこれらの原則
を基に、警報から実際の電池切れまでの時間を利用者が
自由に設定できる電池警告装置を構成する。
The discharge characteristics of a battery are uniform as long as the used load is the same, and the remaining usable time depends on the point of the battery currently used in the battery discharge characteristics. You can figure it out. Further, the point of the battery currently in use in the battery discharge characteristics can be specified by periodically detecting the voltage value and determining the voltage value and the voltage fluctuation value per unit time. The present invention constitutes a battery warning device that allows a user to freely set the time from an alarm to the actual battery exhaustion based on these principles.

【0007】本発明に係わる電池警告装置は具体的に
は、電池で動作する各種機器に使用され、この機器に搭
載している電池の電力低下により当該機器が使用不可能
に近づいたことを警報する電池警告装置において、前記
搭載している電池の種別と当該機器の使用状態(負荷)
とで予め特定される放電特性曲線から、当該電池の使用
可能残存時間に対比する電圧値および微少単位時間
(t)当たりの電圧変動値を、複数個記憶させた使用可
能残存時間/電圧・電圧変動値変換テーブルと、利用者
が時間(使用可能残存時間)を設定するための入力手段
と、利用者が前記入力手段を用いて時間(使用可能残存
時間)を設定した場合、前記使用可能残存時間/電圧・
電圧変動値変換テーブルから当該時間に対応する電圧値
S および電圧変動値ΔVS が読み出されて比較手段に
設定される手段と、搭載している電池の前記使用状態
(負荷)における電圧を前記微少単位時間(t)毎に逐
次検出し、前回読み出した電圧値および今回読み出した
電圧値とから現時点の電圧値Vn および電圧変動値ΔV
n を逐次算出し前記比較手段にこの情報を出力する電圧
・電圧変動値算出手段と、前記比較手段では前記Vn
S ,および前記ΔVn とΔVS とを逐次比較し、Vn
=VS でありΔVn =ΔVS となった場合に、警報手段
を制御して警報を発する制御手段とを備えたことを特徴
とする。
The battery warning device according to the present invention is specifically used for various devices operated by a battery, and warns that the device is almost unusable due to a decrease in power of a battery mounted on the device. Battery warning device, the type of the installed battery and the use state (load) of the device
And a plurality of usable remaining time / voltage / voltage in which a plurality of voltage values corresponding to the remaining usable time of the battery and voltage fluctuation values per minute unit time (t) are stored from the discharge characteristic curve specified in advance. A fluctuation value conversion table, input means for the user to set a time (remaining usable time), and when the user sets the time (remaining usable time) using the input means, the usable remaining time is set. Time / voltage
Means the voltage value V S and the voltage change value [Delta] V S corresponding the voltage variation value conversion table to the time is set to read and comparison means, the voltage at the use state of the battery that is mounted (loaded) the sequentially detected for each infinitesimal unit time (t), the voltage value and the voltage value of the current from the read voltage value and current V n and voltage variation value ΔV previously read
a voltage-voltage change value calculating means n sequentially calculates and outputs this information to the comparison means, said comparison means compares said V n and V S, and said [Delta] V n and [Delta] V S sequentially, V n
= If it becomes [Delta] V n = [Delta] V S is V S, is characterized in that a control means for issuing an alarm and controls the alarm means.

【0008】また、当該機器の使用状態(負荷)が複数
の場合、現在どの負荷を当該電池が動作しているかを検
出する負荷検出手段と、前記使用可能残存時間/電圧・
電圧変動値変換テーブルからは、前記負荷検出手段で検
出された負荷で特定される放電特性曲線による前記利用
者が設定した使用可能残存時間に対する電圧値Vn およ
び電圧変動値ΔVn が前記比較手段に設定されることを
特徴とする。
When there are a plurality of use states (loads) of the device, load detection means for detecting which load the battery is currently operating, and the remaining usable time / voltage
From the voltage variation value conversion table, the load detecting means at the detected voltage value V n and voltage variation value [Delta] V n is the comparison means for said available user has set the remaining time due to the discharge characteristic curve that is specified by the load Is set.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施形態を図面を
用いて説明する、図1は、本発明の電池警告装置の装置
構成の一実施形態を説明するためのブロック図である。
図において、11は入力手段であり、この入力手段11
を用いて利用者は警報が発せられてから実際に動作不能
になるまでの時間(使用可能残存時間となる)を設定す
る。12は設定された時間(使用可能残存時間)からこ
の時間に対応する電圧値VS および電圧変動値ΔVS
出力する使用可能残存時間/電圧・電圧変動値変換テー
ブルである。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram for explaining an embodiment of a device configuration of a battery warning device of the present invention.
In the figure, reference numeral 11 denotes an input means.
Using, the user sets the time from when the alarm is issued to when the operation is actually disabled (the remaining usable time). Reference numeral 12 denotes a usable remaining time / voltage / voltage fluctuation value conversion table for outputting a voltage value V S and a voltage fluctuation value ΔV S corresponding to the set time (remaining usable time).

【0010】図2は変換テーブル12を説明するための
図であり、図において、20はある電池のある使用状態
(負荷)における電池放電特性を示す図である。すなわ
ち使用される電池と、使用中の負荷とが予め判っていれ
ば、電池の放電特性は一律と考えられ、且つこの放電特
性から使用可能残存時間を算出できる。例えば図2の点
(A)においては、この負荷でこのまま使用を続けると
約2分後に動作不可能になり、点(B)においては約1
分後に、点(C)においては約10秒後に動作不可能に
なることを予め知ることができる。
FIG. 2 is a diagram for explaining the conversion table 12. In the drawing, reference numeral 20 denotes a battery discharge characteristic in a certain use state (load) of a certain battery. That is, if the battery to be used and the load during use are known in advance, the discharge characteristics of the battery are considered to be uniform, and the remaining usable time can be calculated from the discharge characteristics. For example, at point (A) in FIG. 2, if the load is continued as it is, operation becomes impossible after about 2 minutes, and at point (B), about 1 minute.
After a minute, it can be known in advance that at point (C), operation will be disabled after about 10 seconds.

【0011】また現在使用中の電池が点(A)の状態に
あるか、点(B)の状態にあるか、あるいは点(C)の
状態にあるかは(すなわち電池放電特性20のどの位置
にあるかは)、その時の電圧値Vn および単位時間当た
りの電圧変動値ΔVn で正確に判断することができる。
なお、使用される負荷が1つだけであれば、電圧値だけ
でもある程度の使用可能残存時間の割り出しが可能と言
えるが、例えば携帯電話装置では、図3に示すように通
話時の電池放電特性21と待ち受け時の電池放電特性2
2とでは全く異なる等、複数の負荷の使用に対応させる
必要性と正確さを期すために、本発明では電圧値および
電圧変動値と使用可能残存時間とを対比させる構成とし
ている。すなわち利用者が入力手段11を用いて例えば
「2分」を設定した場合、点(A)の電圧値V2 ,電圧
変動値ΔV1 が変換テーブル12から読み出されて、比
較手段13にこの情報が格納される。
Whether the battery currently in use is in the state of point (A), in the state of point (B), or in the state of point (C) (that is, in which position of the battery discharge characteristic 20) or in the), it can be accurately determined by the voltage variation value [Delta] V n per voltage value V n and the unit time at that time.
If only one load is used, it can be said that a certain amount of usable remaining time can be determined by using only the voltage value. For example, in the case of a mobile phone device, as shown in FIG. 21 and battery discharge characteristics 2 in standby
In order to ensure the necessity and accuracy to cope with the use of a plurality of loads, for example, completely different from 2, the present invention is configured to compare the voltage value and the voltage fluctuation value with the usable remaining time. That is, when the user sets, for example, “two minutes” using the input unit 11, the voltage value V 2 and the voltage fluctuation value ΔV 1 at the point (A) are read from the conversion table 12, and Information is stored.

【0012】一方、搭載され使用されている電池14の
電圧は、電圧検出手段15で微少単位時間(t)毎に読
み出されており、前回読み出された電圧値と今回読み出
された電圧値とにより、現在の電圧値Vn および電圧変
動値ΔVn が電圧・電圧変動値算出手段16により算出
されて比較手段13に逐次入力され、変換テーブル12
から読み出された電圧値VS (上述の説明ではV2 ),
電圧変動値ΔVS (上述の説明ではΔV1 )と比較され
る。そして両者が一致した場合(すなわちVn =VS
あり、ΔVn =ΔVS となった場合)、制御手段17に
情報が出力され、制御手段17は警報手段18を動作さ
せて利用者が設定した時間(使用可能残存時間:上述の
点(A)の場合使用不可能になる2分前)に警報を発す
る。なお利用者が「1分」を設定した場合、VS =V
4 ,ΔVS =ΔV3 が比較手段13に設定され、電圧・
電圧変動値算出手段16から出力される電圧値Vn およ
び電圧変動値ΔVn が、Vn =V4 およびΔVn =ΔV
3 となった(B)点で警報が発せられ、「10秒」が設
定された場合、電圧値V5 ,電圧変動値ΔV4で警報が
発せられることになる。なお、使用可能残存時間/電圧
・電圧変動値変換テーブル12,比較手段13および電
圧・電圧変動値算出手段16は全体を制御する制御手段
17によって制御される。
On the other hand, the voltage of the battery 14 mounted and used is read by the voltage detecting means 15 every minute unit time (t), and the voltage value read last time and the voltage read this time are used. the value is sequentially input to the current voltage value V n and voltage variation value [Delta] V n is compared is calculated by the voltage and voltage fluctuation value calculating means 16 means 13, the conversion table 12
Voltage value V S (V 2 in the above description) read from
This is compared with the voltage fluctuation value ΔV S (ΔV 1 in the above description). And (a i.e. V n = V S, when a ΔV n = ΔV S) when they match, outputs the information to the control means 17, the control unit 17 the user operates the alarm means 18 is An alarm is issued at a set time (remaining usable time: two minutes before the point becomes unusable in the case of the above point (A)). If the user sets “1 minute”, V S = V
4 , ΔV S = ΔV 3 is set in the comparing means 13, and the voltage
The voltage value V n and voltage variation value [Delta] V n output from the voltage fluctuation value calculating means 16, V n = V 4 and [Delta] V n = [Delta] V
3 as it becomes time (B) an alarm is issued in the case where "10 seconds" is set, the voltage value V 5, so that the alarm voltage variation value [Delta] V 4 emitted. The available remaining time / voltage / voltage fluctuation value conversion table 12, comparison means 13, and voltage / voltage fluctuation value calculation means 16 are controlled by a control means 17 for controlling the whole.

【0013】19は負荷検出手段であり、使用される機
器に複数種類の負荷モードがある場合、現在使用中の負
荷を検出して制御手段にこれを通知する。例えば上述の
ように携帯電話装置では、図3に示すように通話時と待
ち受け時ではその電池放電特性が異なる。従って負荷検
出手段19は例えば発信キー(図示せず)入力があった
か否か等により待ち受け時か通話時かを判断して制御手
段17にその情報を入力し、制御手段17ではこの情報
に基づいて変換テーブル12に複数格納されている電池
放電特性のうち、現在の負荷状態に対応する電池放電特
性を選択し、選択した電池放電特性における利用者が設
定した時間(使用可能残存時間)に対応する電圧値V
S ,電圧変動値ΔVS が使用可能残存時間/電圧・電圧
変動値変換テーブル12から読み出されて比較手段13
に設定される。従ってどの負荷モードにあっても(携帯
電話装置の場合には通話時であっても待ち受け時であっ
ても)利用者が設定した時間(使用可能残存時間)に警
報を発する構成とできる。
Reference numeral 19 denotes a load detecting means for detecting a load currently in use and notifying the control means when a device to be used has a plurality of types of load modes. For example, as described above, in the portable telephone device, as shown in FIG. 3, the battery discharge characteristics are different between a call and a standby. Accordingly, the load detecting means 19 determines whether the apparatus is in a standby state or a telephone call by inputting a transmission key (not shown) or the like, and inputs the information to the control means 17. A battery discharge characteristic corresponding to the current load state is selected from among a plurality of battery discharge characteristics stored in the conversion table 12, and the selected battery discharge characteristic corresponds to a time set by the user (remaining usable time). Voltage value V
S, comparison is read from the voltage variation value [Delta] V S is available remaining time / voltage and voltage fluctuation value conversion table 12 means 13
Is set to Therefore, in any load mode (in the case of a mobile phone device, whether it is during a call or standby), an alarm can be issued at a time set by the user (remaining usable time).

【0014】[0014]

【発明の効果】以上説明したように本発明の電池警告装
置は、電池の放電特性に基づき電圧・電圧変動値と使用
可能残存時間とを対比させた変換テーブルを備えること
としたので、利用者は警報が鳴ってから動作不能になる
までの時間を自由に設定でき、使用する機器および利用
者の慣習や使用態様に応じて警報を発する時間の設定が
可能な使い勝手の良い装置が得られるという効果があ
る。
As described above, the battery warning device of the present invention is provided with the conversion table in which the voltage / voltage fluctuation value and the remaining usable time are compared based on the discharge characteristics of the battery. Can freely set the time from when an alarm sounds until it becomes inoperable, and obtain a user-friendly device that can set the time to issue an alarm according to the equipment used and the customs and usage of the user. effective.

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

【図1】本発明の装置構成の一実施形態を示すブロック
図である。
FIG. 1 is a block diagram showing an embodiment of the device configuration of the present invention.

【図2】図1に示す変換テーブルを説明するための図で
ある。
FIG. 2 is a diagram for explaining a conversion table shown in FIG. 1;

【図3】負荷の相違により同じ電池でも放電特性が異な
ることを示す図である。
FIG. 3 is a diagram showing that the same battery has different discharge characteristics due to a difference in load.

【符号の説明】[Explanation of symbols]

11 入力手段 12 使用可能残存時間/電圧・電圧変動値変換テーブ
ル 13 比較手段 14 電池 15 電圧検出手段 16 電圧・電圧変動値算出手段 17 制御手段 18 警報手段 19 負荷検出手段
DESCRIPTION OF SYMBOLS 11 Input means 12 Usable remaining time / voltage / voltage fluctuation value conversion table 13 Comparison means 14 Battery 15 Voltage detection means 16 Voltage / voltage fluctuation value calculation means 17 Control means 18 Alarm means 19 Load detection means

フロントページの続き (51)Int.Cl.6 識別記号 FI H04B 1/40 H04B 1/40 Continued on the front page (51) Int.Cl. 6 Identification code FI H04B 1/40 H04B 1/40

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 電池で動作する各種機器に使用され、こ
の機器に搭載している電池の電力低下により当該機器が
使用不可能に近づいたことを警報する電池警告装置にお
いて、 前記搭載している電池の種別と当該機器の使用状態(負
荷)とで予め特定される放電特性曲線から、当該電池の
使用可能残存時間に対比する電圧値および微少単位時間
(t)当たりの電圧変動値を、複数個記憶させた使用可
能残存時間/電圧・電圧変動値変換テーブルと、 利用者が時間(使用可能残存時間)を設定するための入
力手段と、 利用者が前記入力手段を用いて時間(使用可能残存時
間)を設定した場合、前記使用可能残存時間/電圧・電
圧変動値変換テーブルから当該時間に対応する電圧値V
S および電圧変動値ΔVS が読み出されて比較手段に設
定される手段と、 搭載している電池の前記使用状態(負荷)における電圧
を前記微少単位時間(t)毎に逐次検出し、前回読み出
した電圧値および今回読み出した電圧値とから現時点の
電圧値Vn および電圧変動値ΔVn を逐次算出し前記比
較手段にこの情報を出力する電圧・電圧変動値算出手段
と、 前記比較手段では前記Vn とVS ,および前記ΔVn
ΔVS とを逐次比較し、Vn =VS でありΔVn =ΔV
S となった場合に、警報手段を制御して警報を発する制
御手段とを備えたことを特徴とする電池警告装置。
1. A battery warning device that is used for various devices that operate on a battery and that warns that the device is about to become unusable due to a decrease in the power of a battery mounted on the device. From a discharge characteristic curve specified in advance by the type of battery and the use state (load) of the device, a plurality of voltage values and voltage fluctuation values per minute unit time (t) relative to the remaining usable time of the battery are determined. The remaining usable time / voltage / voltage fluctuation value conversion table stored by the user, input means for the user to set the time (remaining usable time), and the user using the input means for the time (usable time) When the remaining time is set, the voltage value V corresponding to the time is obtained from the usable remaining time / voltage / voltage fluctuation value conversion table.
Means S and the voltage variation value [Delta] V S is set to read and comparison means sequentially detects a voltage in the usage state of the battery is mounted (loaded) in the infinitesimal unit time (t) for each previous a voltage-voltage change value calculation means for outputting the information on the read voltage value and sequentially calculated the comparison means from the read voltage value and current voltage values V n and voltage variation value [Delta] V n at the present time, in the comparison means wherein V n and V S, and sequentially comparing the [Delta] V n and [Delta] V S, is V n = V S ΔV n = ΔV
A battery warning device comprising: a control unit that controls a warning unit and issues a warning when the state becomes S.
【請求項2】 当該機器の使用状態(負荷)が複数の場
合、現在どの負荷を当該電池が動作しているかを検出す
る負荷検出手段と、 前記使用可能残存時間/電圧・電圧変動値変換テーブル
からは、前記負荷検出手段で検出された負荷で特定され
る放電特性曲線による前記利用者が設定した使用可能残
存時間に対する電圧値Vn および電圧変動値ΔVn が前
記比較手段に設定されることを特徴とする請求項第1項
記載の電池警告装置。
2. A load detection means for detecting which load the battery is currently operating when there are a plurality of use states (loads) of the device, and a usable remaining time / voltage / voltage fluctuation value conversion table. from, the voltage value V n and voltage variation value [Delta] V n for the user can remain time use set by the discharge characteristic curve specified by the detected load by the load detecting means is set to said comparison means The battery warning device according to claim 1, wherein:
JP8318520A 1996-11-15 1996-11-15 Battery warning device Expired - Fee Related JP2957497B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8318520A JP2957497B2 (en) 1996-11-15 1996-11-15 Battery warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8318520A JP2957497B2 (en) 1996-11-15 1996-11-15 Battery warning device

Publications (2)

Publication Number Publication Date
JPH10148661A true JPH10148661A (en) 1998-06-02
JP2957497B2 JP2957497B2 (en) 1999-10-04

Family

ID=18100034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8318520A Expired - Fee Related JP2957497B2 (en) 1996-11-15 1996-11-15 Battery warning device

Country Status (1)

Country Link
JP (1) JP2957497B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367480A1 (en) * 2002-05-29 2003-12-03 AboCom Systems, Inc. Portable computer capable of setting a data keeping time
JP2007027671A (en) * 2005-06-17 2007-02-01 Matsushita Electric Ind Co Ltd Laser device and residual battery capacitance detection method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367480A1 (en) * 2002-05-29 2003-12-03 AboCom Systems, Inc. Portable computer capable of setting a data keeping time
JP2007027671A (en) * 2005-06-17 2007-02-01 Matsushita Electric Ind Co Ltd Laser device and residual battery capacitance detection method

Also Published As

Publication number Publication date
JP2957497B2 (en) 1999-10-04

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