JP4932099B2 - Battery replacement time determination method and battery replacement time determination device - Google Patents

Battery replacement time determination method and battery replacement time determination device Download PDF

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JP4932099B2
JP4932099B2 JP2001256866A JP2001256866A JP4932099B2 JP 4932099 B2 JP4932099 B2 JP 4932099B2 JP 2001256866 A JP2001256866 A JP 2001256866A JP 2001256866 A JP2001256866 A JP 2001256866A JP 4932099 B2 JP4932099 B2 JP 4932099B2
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battery
replacement time
battery replacement
voltage
monitoring
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JP2003068312A (en
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辰之 佐藤
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Kyocera Corp
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Kyocera Corp
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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Description

【０００１】
【発明の属する技術分野】
本発明は、電池交換時期判別方法及び電池交換時期判別装置に係り、特に一次電池を使用した無線テレメータシステム等の通信手段を備えた計測システムにおける電池交換時期を判別するための電池交換時期判別方法及び電池交換時期判別装置に関する。
【０００２】
【従来の技術】
近年、自動販売機、料金検出装置等の販売量、使用量、料金等のデータ収集に無線通信を利用したテレメータが用いられるようになってきた。このようなシステムにおいて、テレメータ内には、電気エネルギー供給源として一次電池が用いられている。この一次電池の交換時期を判別する方法としては従来、電池残量に基づいて行っていた。すなわち上記一次電池の電池電圧をアナログ／ディジタル変換器（以下、Ａ／Ｄ変換器と記す。）によりディジタル情報に変換し、演算器（ＣＰＵ）でＡ／Ｄ変換器の出力として得られる電池電圧のデータを取り込み、このデータを平均化等の処理をすることにより電池残量を監視し、一次電池の交換時期の判別をしていた。
【０００３】
【発明が解決しようとする課題】
一次電池は図２に示すように放電深度が高くなるにつれて内部抵抗が増加し、例えば、タイミングｔ0におけるように重負荷時（例えば、急激な放電時）に電圧降下が発生する。上記従来例においては、Ａ／Ｄ変換器及び演算器（ＣＰＵ）を用いる為、演算器（ＣＰＵ）が最大周波数で動作中となり、このとき一次電池の電圧降下が一時的に大きくなるが、このような重負荷となるタイミングｔ0において一次電池の電池電圧を検出し、その監視を行っていたために、正確に電池交換時期を判別することができないという問題があった。
【０００４】
また、電池交換までの期間を長く（例えば、１０年）要求されるテレメータにおいては、図６に示すように一次電圧の電池残量の変化が非常に緩やかな為、一次電池交換時期の判別に必要な電池電圧をＡ／Ｄ変換器の精度上、正確に監視することが困難であるという問題があった。
【０００５】
本発明はこのような事情に鑑みてなされたものであり、負荷やＡ／Ｄ変換器の精度の影響を受けることなく、一次電池交換時期の判別を行うことが可能な電池交換時期判別装置及び電池交換時期判別方法を提供することを目的とする。
また、本発明は、低消費電力化を図った電池交換時期判別装置及び電池交換時期判別方法を提供することを目的とする。
【０００６】
上記目的を達成するために、以下の手段を採用した。
本発明に係る電池交換時期判別方法は、一次電池を使用し、かつ通信手段を備えた計測システムの電池交換時期判別方法において、前記一次電池の電池電圧と、予め設定された電池交換時期を示す基準電圧とを比較し、該比較結果に基づいて前記電池電圧が前記基準電圧より低い状態が所定の間継続するか否かを監視し、前記電池電圧が前記基準電圧より低い状態が所定の間継続した場合に電池交換時期であると判定し、電池交換時期であると判定すると、前記監視する手段への電源供給をＯＦＦして前記電池交換時期であることを示す判定の回数をカウントし、当該カウント後に前記監視する手段を駆動させる場合には前記監視回路への電源供給をＯＮにし、前記電池交換時期であることを示す判定が予め定めた所定回数以上、行われた場合に電池交換時期であることを報知する。
【０００７】
前記監視する手段への電源供給を停止するように制御する手段が動作状態となる直前のタイミングで取り込んだ前記比較結果に基づいて前記電池交換時期であるか否かを判定することを特徴とする。
【０００９】
本発明に係る電池交換時期判別方法は、一次電池を使用し、かつ通信手段を備えた計測システムの電池交換時期判別装置において、前記一次電池の電池電圧と、予め設定された電池交換時期を示す基準電圧とを比較する比較手段と、前記比較結果に基づいて前記電池電圧が前記基準電圧より低い状態が所定の間継続するか否かを監視し、前記電池電圧が前記基準電圧より低い状態が所定の間継続した場合に電池交換時期であると判定する状態監視手段と、前記状態監視手段が電池交換時期であると判定すると、前記監視する手段への電源供給をＯＦＦして前記電池交換時期であることを示す判定の回数をカウントし、当該カウント後に前記監視する手段を駆動させる場合には、前記監視回路への電源供給をＯＮにする制御手段と、前記電池交換時期であることを示す判定が予め定めた所定回数以上、行われた場合に電池交換時期であることを報知する報知手段と、を有することを特徴とする。
【００１０】
前記状態監視手段は、前記制御手段が動作状態となる直前のタイミングで取り込んだ前記比較手段の比較結果に基づいて前記電池交換時期であるか否かを判定することを特徴とする。
【００１２】
【発明の実施の形態】
以下、本発明の実施形態について図面を参照して詳細に説明する。本発明が適用される無線テレメータ装置の構成を図１に示す。本実施の形態では、無線テレメータ装置を一例として示しているが、本発明をこれらに限定する趣旨ではない。
無線テレメータ装置は、一次電池１０と、電源回路１２と、比較回路１４と、監視回路１６と、電源供給回路１８と、制御回路２０と、無線部２２と、外部インタフェース２４とを有している。
【００１３】
電源回路１２は一次電池１０の電池出力に基づいて各部に電源供給する。また、比較回路１４は、一次電池１０の電池電圧と電池交換時期における電池残量を示す基準電圧とを比較する機能を有する。
監視回路１６は、予め定めた所定の間間隔毎に比較回路１４の出力を取り込み、監視する機能を有する。電源供給回路１８は、制御回路２０の制御下に監視回路１６への電源供給を行い、又は電源供給を停止する機能を有する。制御回路２０は、各部を制御する。無線部２２は、図２に示すようにアンテナ１を介してセンタと所定の間間隔で、通信する機能を有する。
本実施の形態において、比較回路１４は、本発明の比較手段に、監視回路１６は、本発明の状態監視手段に、制御回路２０は、本発明の制御手段に、それぞれ相当する。
【００１４】
次に、図２は図１における回路の動作モード及び負荷状態を示す。同図において、Ｔsは省電力化の為にスリープしているスリープ時間、Ｔｒはウェイクアップ状態にある時間を示している。ここで、ウェイクアップ状態とはＣＰＵが動作する状態、例えば、送受信時の状態を意味する。また、ｔiは、前記比較回路の比較結果を予め定めた所定の間間隔毎に算出するタイミングである。
【００１５】
次に、監視回路１６及びその周辺回路の詳細構成を図３に示す。同図において、監視回路１６はカウンタで構成され、比較回路１４はコンパレータ１４０と、基準電圧発生回路１４１とで構成されている。基準電圧発生回路１４１は、一次電池１０の電池交換時期を示す基準電圧を発生する回路である。
【００１６】
コンパレータ１４０は、一次電池１０（図１）の電池電圧ＶBと、基準電圧ＶREFとを比較し、その比較結果をカウンタ１６のDATA端子に出力する。
カウンタ１６は、例えば送受信時であるウェイクアップのタイミングｔi（図２）における動作信号をトリガ信号としてカウントアップ動作し、DATA端子の入力を監視する。Ｎ（本実施の形態では例えば、Ｎ＝８）カウントするまでにDATA端子の入力状態に変化が無い場合にはＮカウントした時点で、DATA端子に入力された信号を出力端子から出力するようになっている。Ｎカウントするまでに、入力状態が変化した場合には、カウンタ１６はリセットされ、カウントアップを開始する。すなわち、カウンタ１６は、DATA端子の入力状態をカウント毎に所定の間、監視し、Ｎカウントした場合に電池の交換時期になったか否かを示す判別信号を制御回路２０に出力する。この動作タイミングを図４に示す。
【００１７】
上記構成において、一次電池１０の電池電圧ＶBと予め定めた電池交換時期を示す基準電圧ＶREFとを比較する比較回路１４は、常に一次電池１０の電池電圧ＶBの検出、比較を行っている。本実施形態では、一次電池１０の電池電圧ＶBが電池交換時期を示す基準電圧ＶREFより高い場合はハイレベル（Ｈｉ）の信号を、上記基準電圧ＶREFより低い場合はローレベル（Ｌｏ）の信号を出力する。
一次電池１０の電池電圧ＶBが基準電圧ＶREFより低くなると前記比較回路１４の比較結果を予め定めた所定の間、監視する監視回路１６としてのカウンタがリセット解除され、計数可能な状態となる（図４：タイミングｔ1）。
【００１８】
監視回路１６が計数可能な状態中に図２で示した省電力化の為にスリープしている時間Ｔsから例えば、送受信等によりＣＰＵが動作する時間Ｔrへ遷移するタイミングｔiでトリガ信号が制御回路２０から監視回路１６に出力され、１回カウントされる。設定されたカウント回数（Ｎ＝８）に達するまで電池電圧ＶBと予め定めた電池交換時期を示す基準電圧ＶREFと比較する比較回路１４の出力がローレベルを保持していた場合のみ、監視回路（カウンタ）１６は制御回路２０へ電池交換時期である旨の判定信号を出力する（図４：タイミングｔ2）。
【００１９】
次に制御回路の処理内容について図５を参照して説明する。制御回路２０は監視回路１６からの判定信号を取り込み、一次電池１０の電池電圧ＶBが基準電圧ＶREFより低くなったこと示す判定信号を監視回路１６から受けると（ステップ１００）、電力供給回路１８を、電源回路１２を介して駆動し、監視回路１６への電力供給を停止する（ステップ１０２）。
【００２０】
次いで、測定回数ｎをカウントアップし、ｎ＝ｉ（ｉは予め設定した測定回数）であるか否かを判定する（ステップ１０３）。測定回数ｎがｉ未満である場合には、監視回路（カウンタ）１６をリセットした後、電源供給回路１８により監視回路１６を駆動し（ステップ１０４）、処理はステップ１００に戻る。このような処理ステップ（１００〜１０４）を繰り返し、複数回、電池電圧ＶBが基準電圧ＶREFより低くなったことを測定する。
さらに、ステップ１０３で測定回数ｎがｉ以上であると判定された場合、すなわち一次電池１０の電池電圧ＶBが基準電圧ＶREFより低くなったことをｉ回以上測定した場合に、一次電池１０の電池交換時期がきたことを電池交換者へ通知する（ステップ１０５）。
【００２１】
【発明の効果】
本発明によれば、一次電池の電池電圧と、予め設定された電池交換時期における電池残量を示す基準電圧とを比較し、該比較結果に基づいて前記電池電圧が前記基準電圧より低い状態が所定の間（Ｎカウント）継続するか否かを監視し、前記電池電圧が前記基準電圧より低い状態が所定の間継続した場合に電池交換時期であると判定し、監視する手段への電源供給を停止するように制御するので、負荷変動による一時的な電圧降下要素は排除され、簡易な構成で正確に電池交換時期を判別することができる。
また、電池交換時期であることを複数回検出した後に電池交換者へ通知することにより、電池交換者は的確な電池交換を行うことができる。
【００２２】
また、本発明によれば、前記一次電池の電池電圧と、予め設定された電池交換時期における電池残量を示す基準電圧とを比較する比較手段と、前記比較結果に基づいて前記電池電圧が前記基準電圧より低い状態が所定の間継続するか否かを監視し、前記電池電圧が前記基準電圧より低い状態が所定の間継続した場合に電池交換時期であると判定する状態監視手段と、前記状態監視手段が電池交換時期であると判定した場合に、前記状態監視手段への電源供給を停止する制御手段とを有し、前記状態監視手段は、制御手段（ＣＰＵ）の動作に依存しないコンパレータやボルテージディテクタを用いることで、前記制御手段が動作状態となる直前のタイミングで取り込んだ前記比較手段の比較結果に基づいて前記電池交換時期であるか否かを判定するようにしたので、アナログ／ディジタル変換器を用いずに、低消費電力化が図れる。
また、電池交換時期判別後は状態監視手段への電力供給を停止するので、より低消費電力化が図れる。
【図面の簡単な説明】
【図１】 本発明が適用される無線テレメータ装置の構成を示すブロック図。
【図２】 図１に示した無線テレメータ装置の動作モード及び負荷状態を示すタイミングチャート。
【図３】 図１における監視回路及びその周辺回路の詳細構成を示すブロック図。
【図４】 図３に示す監視回路の動作を示すタイミングチャート。
【図５】 図１における制御 回路の処理内容を示すフローチャート。
【図６】 一次電池における負荷と電池電圧との関係を示す特性図。
【符号の説明】
１０ 一次電池
１２ 電源回路
１４ 比較回路
１６ 監視回路
１８ 電源供給回路
２０ 制御回路
２２ 無線部
２４ 外部インターフェース[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery replacement time determination method and a battery replacement time determination device, and more particularly to a battery replacement time determination method for determining a battery replacement time in a measurement system equipped with a communication means such as a wireless telemeter system using a primary battery. And a battery replacement time determination device.
[0002]
[Prior art]
In recent years, telemeters using wireless communication have been used to collect data on sales volume, usage volume, charges, and the like of vending machines and fee detection devices. In such a system, a primary battery is used as an electric energy supply source in the telemeter. Conventionally, the primary battery replacement period is determined based on the remaining battery level. That is, the battery voltage of the primary battery is converted into digital information by an analog / digital converter (hereinafter referred to as an A / D converter), and the battery voltage obtained as an output of the A / D converter by an arithmetic unit (CPU). The remaining amount of battery is monitored by processing such as averaging this data and determining the replacement time of the primary battery.
[0003]
[Problems to be solved by the invention]
As shown in FIG. 2, the internal resistance of the primary battery increases as the depth of discharge increases. For example, a voltage drop occurs during heavy load (for example, during rapid discharge) as at timing t0. In the above conventional example, since the A / D converter and the arithmetic unit (CPU) are used, the arithmetic unit (CPU) is operating at the maximum frequency, and at this time, the voltage drop of the primary battery temporarily increases. Since the battery voltage of the primary battery is detected and monitored at such a heavy load timing t0, there is a problem that the battery replacement time cannot be accurately determined.
[0004]
Also, in telemeters that require a long period of time for battery replacement (for example, 10 years), the change in the remaining battery level of the primary voltage is very gradual as shown in FIG. There is a problem that it is difficult to accurately monitor the required battery voltage due to the accuracy of the A / D converter.
[0005]
The present invention has been made in view of such circumstances, and a battery replacement time determination device capable of determining a primary battery replacement time without being affected by the load or the accuracy of the A / D converter, and It is an object to provide a battery replacement time determination method.
It is another object of the present invention to provide a battery replacement time determination device and a battery replacement time determination method that achieve low power consumption.
[0006]
In order to achieve the above object, the following means were adopted.
The battery replacement time determination method according to the present invention shows a battery voltage of the primary battery and a preset battery replacement time in the battery replacement time determination method of a measurement system using a primary battery and provided with communication means. A comparison is made with a reference voltage, and based on the comparison result, it is monitored whether or not the state where the battery voltage is lower than the reference voltage continues for a predetermined period, and the state where the battery voltage is lower than the reference voltage is a predetermined period If it is determined that it is time to replace the battery, and if it is determined that it is time to replace the battery, turn off the power supply to the means for monitoring and count the number of determinations indicating that it is time to replace the battery, If the driving means for the monitoring after the count oN the power supply to the monitoring circuit, the determination indicating that the a battery replacement timing is preset predetermined number of times or more, made the field To inform that it is a battery replacement time to.
[0007]
It is determined whether or not it is the battery replacement time based on the comparison result taken at the timing immediately before the means for controlling the power supply to the monitoring means to stop operating. .
[0009]
A battery replacement time determination method according to the present invention is a battery replacement time determination device for a measurement system that uses a primary battery and includes a communication means, and shows a battery voltage of the primary battery and a preset battery replacement time. Comparing means for comparing with a reference voltage, and monitoring whether or not the state where the battery voltage is lower than the reference voltage continues for a predetermined period based on the comparison result, and the state where the battery voltage is lower than the reference voltage If the state monitoring means determines that it is time to replace the battery when it continues for a predetermined time, and if the state monitoring means determines that it is time to replace the battery , the power supply to the monitoring means is turned off and the battery replacement time is determined. It counts the number of times of determination indicating that this is, in case of driving the means for the monitoring after the count control means turns oN the power supply to the monitoring circuit, the battery exchange Predetermined number of times or more a predetermined determination indicating that it is time, characterized by having a a informing means for informing that the battery replacement timing when done.
[0010]
The state monitoring means determines whether or not it is the battery replacement time based on the comparison result of the comparison means taken in immediately before the control means enters the operating state.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the configuration of a radio telemeter device to which the present invention is applied. In the present embodiment, a radio telemeter device is shown as an example, but the present invention is not limited to these.
The wireless telemeter device includes a primary battery 10, a power supply circuit 12, a comparison circuit 14, a monitoring circuit 16, a power supply circuit 18, a control circuit 20, a wireless unit 22, and an external interface 24. .
[0013]
The power supply circuit 12 supplies power to each unit based on the battery output of the primary battery 10. The comparison circuit 14 has a function of comparing the battery voltage of the primary battery 10 with a reference voltage indicating the remaining battery level at the time of battery replacement.
The monitoring circuit 16 has a function of taking in and monitoring the output of the comparison circuit 14 at predetermined intervals. The power supply circuit 18 has a function of supplying power to the monitoring circuit 16 under the control of the control circuit 20 or stopping the power supply. The control circuit 20 controls each part. As shown in FIG. 2, the wireless unit 22 has a function of communicating with the center at a predetermined interval via the antenna 1.
In the present embodiment, the comparison circuit 14 corresponds to the comparison means of the present invention, the monitoring circuit 16 corresponds to the state monitoring means of the present invention, and the control circuit 20 corresponds to the control means of the present invention.
[0014]
Next, FIG. 2 shows an operation mode and a load state of the circuit in FIG. In the figure, Ts indicates a sleep time during which the user sleeps for power saving, and Tr indicates a time during which the wake-up state is established. Here, the wake-up state means a state where the CPU operates, for example, a state during transmission / reception. Further, ti is a timing for calculating the comparison result of the comparison circuit at predetermined intervals.
[0015]
Next, a detailed configuration of the monitoring circuit 16 and its peripheral circuits is shown in FIG. In the figure, the monitoring circuit 16 is composed of a counter, and the comparison circuit 14 is composed of a comparator 140 and a reference voltage generation circuit 141. The reference voltage generation circuit 141 is a circuit that generates a reference voltage indicating the battery replacement time of the primary battery 10.
[0016]
The comparator 140 compares the battery voltage V B of the primary battery 10 (FIG. 1) with the reference voltage V REF and outputs the comparison result to the DATA terminal of the counter 16.
The counter 16 counts up using, for example, an operation signal at a wake-up timing ti (FIG. 2) at the time of transmission / reception as a trigger signal, and monitors the input of the DATA terminal. When there is no change in the input state of the DATA terminal until N (in this embodiment, for example, N = 8), the signal input to the DATA terminal is output from the output terminal when N counts. It has become. If the input state changes before counting N, the counter 16 is reset and starts counting up. That is, the counter 16 monitors the input state of the DATA terminal for a predetermined time every count, and outputs a determination signal to the control circuit 20 indicating whether or not it is time to replace the battery when N counts. The operation timing is shown in FIG.
[0017]
In the above configuration, the comparator circuit 14 for comparing the reference voltage V REF indicating the predetermined battery replacement timing and the battery voltage V B of the primary battery 10 is always detected in the battery voltage V B of the primary battery 10, performs comparison Yes. In the present embodiment, when the battery voltage V B of the primary battery 10 is higher than the reference voltage V REF indicating the battery replacement time, a high level (Hi) signal is indicated. When the battery voltage V B is lower than the reference voltage V REF , the low level (Lo) is indicated. The signal is output.
When the battery voltage V B of the primary battery 10 becomes lower than the reference voltage V REF , the counter as the monitoring circuit 16 that monitors the comparison result of the comparison circuit 14 is released from the reset state and becomes countable. (FIG. 4: Timing t1).
[0018]
In the state in which the monitoring circuit 16 can count, the trigger signal is sent to the control circuit at the timing t i when the CPU transitions to the time Tr during which the CPU operates due to transmission / reception or the like, for example, from the sleep time Ts shown in FIG. 20 is output to the monitoring circuit 16 and counted once. Only when the output of the comparison circuit 14 that compares the battery voltage VB with the reference voltage V REF indicating the predetermined battery replacement time is kept at a low level until the set count number (N = 8) is reached, the monitoring circuit The (counter) 16 outputs a determination signal indicating that it is time to replace the battery to the control circuit 20 (FIG. 4: timing t2).
[0019]
Next, processing contents of the control circuit will be described with reference to FIG. When the control circuit 20 receives the determination signal from the monitoring circuit 16 and receives a determination signal from the monitoring circuit 16 indicating that the battery voltage V B of the primary battery 10 has become lower than the reference voltage V REF (step 100), the power supply circuit 18 is driven via the power supply circuit 12, and the power supply to the monitoring circuit 16 is stopped (step 102).
[0020]
Next, the number of measurements n is counted up, and it is determined whether n = i (i is a preset number of measurements) (step 103). If the number of measurements n is less than i, the monitoring circuit 16 is reset, then the monitoring circuit 16 is driven by the power supply circuit 18 (step 104), and the process returns to step 100. Such processing steps (100 to 104) are repeated to measure that the battery voltage V B has become lower than the reference voltage V REF a plurality of times.
Further, when it is determined in step 103 that the number of measurements n is i or more, that is, when it is measured i or more times that the battery voltage V B of the primary battery 10 is lower than the reference voltage V REF , the primary battery 10 The battery replacement is notified to the battery replacement time (step 105).
[0021]
【Effect of the invention】
According to the present invention, the battery voltage of the primary battery is compared with a reference voltage indicating a remaining battery level at a preset battery replacement time, and the battery voltage is lower than the reference voltage based on the comparison result. Whether or not to continue for a predetermined period (N count) is monitored, and when the state where the battery voltage is lower than the reference voltage continues for a predetermined period, it is determined that it is time to replace the battery, and power is supplied to the monitoring means Therefore, a temporary voltage drop element due to load fluctuation is eliminated, and the battery replacement time can be accurately determined with a simple configuration.
Further, by notifying the battery exchanger after detecting that it is time to replace the battery a plurality of times, the battery exchanger can perform an accurate battery replacement.
[0022]
According to the invention, the battery voltage of the primary battery is compared with a reference voltage indicating a remaining battery level at a preset battery replacement time, and the battery voltage is calculated based on the comparison result. State monitoring means for monitoring whether or not a state lower than a reference voltage continues for a predetermined period, and determining that it is a battery replacement time when the state where the battery voltage is lower than the reference voltage continues for a predetermined period; and And a control means for stopping power supply to the state monitoring means when the state monitoring means determines that it is a battery replacement time, and the state monitoring means is a comparator independent of the operation of the control means (CPU). Or using a voltage detector, it is determined whether or not it is the battery replacement time based on the comparison result of the comparison means captured at the timing immediately before the control means enters the operating state. Since the so that, without using an analog / digital converter, power consumption can be reduced.
Further, since the power supply to the state monitoring unit is stopped after the battery replacement time is determined, the power consumption can be further reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a radio telemeter device to which the present invention is applied.
FIG. 2 is a timing chart showing an operation mode and a load state of the radio telemeter device shown in FIG.
3 is a block diagram showing a detailed configuration of a monitoring circuit and its peripheral circuits in FIG. 1. FIG.
4 is a timing chart showing the operation of the monitoring circuit shown in FIG.
FIG. 5 is a flowchart showing processing contents of a control circuit in FIG. 1;
FIG. 6 is a characteristic diagram showing a relationship between a load and a battery voltage in a primary battery.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Primary battery 12 Power supply circuit 14 Comparison circuit 16 Monitoring circuit 18 Power supply circuit 20 Control circuit 22 Radio | wireless part 24 External interface

Claims (4)

一次電池を使用し、かつ通信手段を備えた計測システムの電池交換時期判別方法において、
前記一次電池の電池電圧と、予め設定された電池交換時期を示す基準電圧とを比較し、該比較結果に基づいて前記電池電圧が前記基準電圧より低い状態が所定の間継続するか否かを監視し、前記電池電圧が前記基準電圧より低い状態が所定の間継続した場合に電池交換時期であると判定し、
電池交換時期であると判定すると、前記監視する手段への電源供給をＯＦＦして前記電池交換時期であることを示す判定の回数をカウントし、当該カウント後に前記監視する手段を駆動させる場合には前記監視回路への電源供給をＯＮにし、前記電池交換時期であることを示す判定が予め定めた所定回数以上行われた場合には、電池交換時期であることを報知する電池交換時期判別方法。In a battery replacement time determination method for a measurement system using a primary battery and having a communication means,
The battery voltage of the primary battery is compared with a reference voltage indicating a preset battery replacement time, and whether or not the state where the battery voltage is lower than the reference voltage continues for a predetermined period based on the comparison result. Monitoring and determining that it is time to replace the battery when the battery voltage is lower than the reference voltage for a predetermined period of time;
When it is determined that it is time to replace the battery, the power supply to the monitoring means is turned off, the number of determinations indicating that it is the battery replacement time is counted, and the monitoring means is driven after the count. A battery replacement time determination method for notifying that the battery replacement time is reached when the power supply to the monitoring circuit is turned on and the determination indicating that it is the battery replacement time is made a predetermined number of times or more. 前記監視する手段への電源供給を停止するように制御する手段が動作状態となる直前のタイミングで取り込んだ前記比較結果に基づいて前記電池交換時期であるか否かを判定する請求項１に記載の電池交換時期判別方法。  The determination unit according to claim 1, wherein it is determined whether or not it is time to replace the battery based on the comparison result acquired at a timing immediately before the means for controlling the power supply to the monitoring means to stop operating. Battery replacement time determination method. 一次電池を使用し、かつ通信手段を備えた計測システムの電池交換時期判別装置において、
前記一次電池の電池電圧と、予め設定された電池交換時期を示す基準電圧とを比較する比較手段と、
前記比較結果に基づいて前記電池電圧が前記基準電圧より低い状態が所定の間継続するか否かを監視し、前記電池電圧が前記基準電圧より低い状態が所定の間継続した場合に電池交換時期であると判定する状態監視手段と、
前記状態監視手段が電池交換時期であると判定すると、前記監視する手段への電源供給をＯＦＦして前記電池交換時期であることを示す判定の回数をカウントし、当該カウント後に前記監視する手段を駆動させる場合には、前記監視回路への電源供給をＯＮにする制御手段と、
前記電池交換時期であることを示す判定が予め定めた所定回数以上、行われた場合に電池交換時期であることを報知する報知手段と、
を有する電池交換時期判別装置。In the battery replacement time determination device of the measurement system using the primary battery and equipped with a communication means,
Comparison means for comparing the battery voltage of the primary battery with a reference voltage indicating a preset battery replacement time;
Based on the comparison result, it is monitored whether or not the state where the battery voltage is lower than the reference voltage continues for a predetermined period. When the state where the battery voltage is lower than the reference voltage continues for a predetermined period, the battery replacement time State monitoring means for determining that
When the state monitoring means determines that it is a battery replacement time, the power supply to the monitoring means is turned off, the number of determinations indicating that it is the battery replacement time is counted, and the monitoring means is provided after the count. In the case of driving, control means for turning on the power supply to the monitoring circuit ;
Informing means for notifying that it is the battery replacement time when the determination indicating that it is the battery replacement time is performed a predetermined number of times or more,
A battery replacement time discriminating device. 前記状態監視手段は、前記制御手段が動作状態となる直前のタイミングで取り込んだ前記比較手段の比較結果に基づいて前記電池交換時期であるか否かを判定する請求項３に記載の電池交換時期判別装置。  4. The battery replacement time according to claim 3, wherein the state monitoring unit determines whether or not it is the battery replacement time based on a comparison result of the comparison unit captured at a timing immediately before the control unit enters an operation state. Discriminator.
JP2001256866A 2001-08-27 2001-08-27 Battery replacement time determination method and battery replacement time determination device Expired - Fee Related JP4932099B2 (en)

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