JP4180778B2 - Gas meter for battery life estimation device - Google Patents

Gas meter for battery life estimation device Download PDF

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Publication number
JP4180778B2
JP4180778B2 JP2000282238A JP2000282238A JP4180778B2 JP 4180778 B2 JP4180778 B2 JP 4180778B2 JP 2000282238 A JP2000282238 A JP 2000282238A JP 2000282238 A JP2000282238 A JP 2000282238A JP 4180778 B2 JP4180778 B2 JP 4180778B2
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battery
voltage
life
gas meter
estimating
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JP2002093465A (en
Inventor
一生 今
郁雄 前田
浩人 宇山
充典 小牧
剛 森永
一光 温井
健 田代
仁朗 石野
守 鈴木
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東京瓦斯株式会社
株式会社東芝
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    • 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 or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/12Battery technologies with an indirect contribution to GHG emissions mitigation

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、ガスメータの電子部品に用いられる電池の寿命を推定するガスメータ用電池寿命推定装置に関する。 The present invention relates to a gas meter for battery life estimating apparatus for estimating the life of batteries used in electronic components of the gas meter.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
現在既に実用化されているガスメータ(マイコンメータ)は、ガスの流量等を監視する。 Currently already been put to practical use gas meter (microcomputer meter) monitors the flow rate and the like of the gas. 通常の使用状態と異なる大量のガスが流れたり、長時間に渡ってガスが連続して流れた場合や、地震などの異常が発生した場合には、マイコンが異常状態であると判断し、遮断弁に電流を流してガスの供給を停止し、事故を事前に防止するシステムとなっている。 Normal or different large amount of gas flows used state, and when the gas flows continuously over a long period of time, when an abnormality such as an earthquake occurs, it is determined that the microcomputer is in an abnormal state, blocking by applying a current to the valve to stop the supply of gas, it has a system for preventing accidents in advance. また、この制御は、電話回線等を通じて外部から遠隔操作ができるようになっている。 The control is adapted to allow remote operation from the outside through a telephone line or the like.
【0003】 [0003]
このようなガスメータの電子回路には電池により電源が供給される。 Power is supplied by the battery to the electronic circuitry of such gas meter. 電池の電圧は、電圧検出器により定期的に検出され、検出電圧値が規定値以下になったときに、電池が寿命になったものとして遮断や警報等の処理が行われる。 Voltage of the battery is periodically detected by the voltage detector, the detected voltage value when it is below the specified value, the battery is processing such blocking or alarms as became lifetime is performed.
【0004】 [0004]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
ところが、電池の電圧を検出する際に、疑似抵抗へ電流を印加することによって電圧を検出し、これを比較的短い周期で繰り返すので、このときの消費電流分だけ電池の寿命が短くなるという問題があった。 However, problems in detecting the voltage of the battery, detects a voltage by applying a current to the pseudo-resistor, so repeat this in a relatively short period, that is the life of the current consumption amount corresponding to the battery at this time is shortened was there.
【0005】 [0005]
また、検出電圧値が電池の寿命を示す規定値以下になったときに遮断や警報等の処理が行われるようになっていたため、寿命となったことは知ることができるが、寿命となる以前において電池の残存容量や残存する使用可能時間を知ることができず不便であった。 Further, since the detection voltage value has been so processed blocking or alarm or the like when it is below the specified value indicating the life of the battery is performed, but can be known that a life before the life It was inconvenient can not know the remaining capacity and remaining usable time of the battery in.
【0006】 [0006]
本発明は、上記に鑑みてなされたものであり、その目的とするところは、電池の寿命に影響を与えることなく電池の残存容量や使用可能時間を推定することのできるガスメータ用電池寿命推定装置を提供することにある。 The present invention has been made in view of the above, it is an object of the gas meter for battery life estimation device capable of estimating the remaining capacity or the available time of the battery without affecting the service life of the battery It is to provide a.
【0007】 [0007]
【課題を解決するための手段】 In order to solve the problems]
上記目的を達成するため、 本発明は、ガスメータに用いられる電池の寿命を推定するガスメータ用電池寿命推定装置であって、定常状態における平均消費電流量および異常が発生したときの1回当たりの消費電流量を記憶しておく記憶手段と、定常状態の経過時間を計測する計測手段と、異常の発生回数を計数する計数手段と、前記平均消費電流量と計測された経過時間との乗算値および前記1回当たりの消費電流量と計数された発生回数との乗算値を、前記電池の初期電流容量から減算することにより前記電池の残存容量を推定する推定手段と、を有することを特徴とする。 To achieve the above object, the present invention provides a gas meter for a battery life estimating apparatus for estimating the life of batteries used in the gas meter, consumption per once, when the average current consumption and abnormality occurs in the steady state a storage means for storing the amount of current, a measuring means for measuring an elapsed time steady state, a counting means for counting the number of occurrences of abnormal multiplication value of the elapsed time during which the measured and the average current consumption and a multiplication value of the consumption current amount and counted number of occurrences per the one, characterized by having a, and estimation means for estimating a remaining capacity of the battery by subtracting from the initial current capacity of the battery .
【0008】 [0008]
本発明にあっては、前記平均消費電流量と計測された経過時間とを乗算することによって定常状態における消費電流量を算出するとともに、前記1回当たりの消費電流量と計数された発生回数とを乗算することによって異常状態における電池の消費電流量を算出し、これらを電池の初期電流容量から減算するようにしたことで、疑似抵抗を用いて電池の電圧を直接検出する必要がないので、電池の寿命に影響を与えることなく電池の残存容量を推定することができる。 In the present invention, it calculates the consumed amount of current in the steady state by multiplying the elapsed time and said measured as the average current consumption, the current consumption and counted number of occurrences per the single the calculated current consumption amount of the battery in an abnormal state by multiplying, these by you is subtracted from the initial current capacity of the battery, it is not necessary to detect the voltage of the battery directly using pseudo resistance, it is possible to estimate the remaining capacity of the battery without affecting the battery life.
【0009】 [0009]
また、本発明は、 上記のガスメータ用電池寿命推定装置において、前記電池の電圧を検出する検出手段を有することを特徴とする。 Further, the present invention provides a gas meter for battery life estimating apparatus described above, characterized by having a detecting means for detecting a voltage of said battery.
【0010】 [0010]
本発明にあっては、電池の電圧を検出する検出手段を備えたことで、例えば短絡等の動作不良が発生して電池の残存容量を正確に推定できない場合に、補助的に電池の電圧を検出することができる。 In the present invention, by providing the detecting means for detecting a voltage of the battery, for example, when a malfunction such as a short circuit can not be accurately estimated remaining capacity of the battery occurs, the voltage of the auxiliary to the battery it is possible to detect.
【0011】 [0011]
また、本発明は、ガスメータに用いられる電池の寿命を推定するガスメータ用電池寿命推定装置であって、経過時間に対する前記電池の電圧変化について記憶しておく記憶手段と、前記電池の電圧を検出する電圧検出手段と、前回の検出電圧値と今回の検出電圧値とを用いて傾きを算出する傾き算出手段と、算出された傾きと前記電圧変化とを対応させて経過時間を求める経過時間求出手段と、求めた経過時間を前記電池の寿命期間から減算して使用可能時間を推定する推定手段と、を有することを特徴とする。 Further, the present invention provides a gas meter for a battery life estimating apparatus for estimating the life of batteries used in the gas meter, storage means for storing the voltage change of the battery with respect to the elapsed time, detecting the voltage of said battery a voltage detecting means, the detected voltage value of the previous and the inclination calculation means for calculating the inclination using the present detected voltage value, and the calculated slope the voltage change and the elapsed time determining the elapsed time in correspondence with Motomede characterized in that it comprises means, and estimation means for estimating the elapsed time is subtracted from the life of the battery usable time obtained, the.
【0012】 [0012]
本発明にあっては、前回の検出電圧値と今回の検出電圧値とを用いて傾きを算出し、この傾きと経過時間に対する電池の電圧変化とを対応させて経過時間を求め、この経過時間を電池の寿命期間から減算して使用可能時間を推定するようにしたことで、電圧の検出回数を従来に比して大幅に低減することができ、電池の寿命を長くすることができる。 In the present invention, to calculate the slope by using the detected voltage value and the current detected voltage of the last calculated elapsed time in correspondence with the voltage change of the battery with respect to the elapsed time and the inclination, the elapsed time the by was to estimate to available time subtracted from the life of the battery, can be significantly reduced compared to the number of times of detection of the voltage in the conventional, it is possible to extend the life of the battery.
【0013】 [0013]
また、グラフデータとして疑似抵抗を用いない開放電圧を検出したときのデータを記憶しておくようにすれば、電圧を検出する際に疑似抵抗を用いる必要がなくなるので、電池の寿命に影響を与えることなく電池の使用可能時間を推定することができる。 Further, if such stored data upon detection of the open circuit voltage without using a pseudo resistor as graph data, since it is not necessary to use the pseudo-resistor when detecting the voltage affects the life of the battery it is possible to estimate the available time of the battery without.
【0014】 [0014]
また、本発明は、 上記のガスメータ用電池寿命推定装置において、前記記憶手段は、温度を変えたときの複数のグラフデータを記憶したものであって、温度を検出する温度検出手段と、検出された温度に基づいて前記経過時間算出手段で用いられるグラフデータを選択する選択手段と、を有することを特徴とする。 Further, the present invention provides a gas meter for battery life estimating apparatus described above, the storage means, there is stored a plurality of graph data when changing the temperature, a temperature detecting means for detecting a temperature is detected selecting means for selecting the graph data to be used by the elapsed time calculating means is based on the temperature, characterized by having a.
【0015】 [0015]
本発明にあっては、検出された温度に基づいて適切なグラフデータを選択するようにしたことで、温度変動に対応した正確な使用可能時間を推定することができる。 In the present invention, it was to select the appropriate chart data based on the detected temperature, it is possible to estimate the exact available time corresponding to the temperature variations.
【0016】 [0016]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明を適用した実施の形態について図面を用いて説明する。 Hereinafter, it will be described with reference to the drawings the embodiments according to the present invention.
【0017】 [0017]
[第1の実施の形態] First Embodiment
図1は、一実施の形態に係るガスメータ及びこれに用いる電池寿命推定装置の構成を示す図である。 Figure 1 is a diagram showing a configuration of a battery life estimation device for use in gas meter and this according to one embodiment. 同図のガスメータは、演算制御部2に計量部1と、駆動回路3と、地震検知部8と、圧力検知部9と、通信インタフェース(I/F)部10がそれぞれ接続され、駆動回路3には遮断部4と表示部11が接続された構成である。 Gas meter of this figure, the weighing unit 1 to the calculation control unit 2, a drive circuit 3, an earthquake detection section 8, a pressure detection unit 9, a communication interface (I / F) section 10 are respectively connected, the drive circuit 3 cut-off portion 4 and the display unit 11 is a configuration connected to.
【0018】 [0018]
定常状態で動作し消費電力の比較的小さい計量部1、演算制御部2、地震検知部8、圧力検知部9、通信I/F部10には電池5により電源が供給される。 Relatively small metering section 1 of the power operating in a steady state, the calculation control unit 2, earthquake detection section 8, the pressure detecting portion 9, power is supplied by the battery 5 to the communication I / F unit 10. 異常が発生したときに遮断弁を閉じるために作動する駆動回路3と遮断部4は消費電力が比較的大きく電池12により電源が供給される。 Abnormality is cut-off portion 4 and a drive circuit 3 which operates to close the shut-off valve upon the occurrence power is supplied by a relatively large cell 12 consumes power.
【0019】 [0019]
同図の電池寿命推定装置は、残存容量推定部6が演算制御部2に接続され、電圧検出部7が電池5と演算制御回路2に接続された構成である。 Battery life estimating apparatus of the figure, the remaining capacity estimating section 6 is connected to the calculation control unit 2 is configured such that the voltage detector 7 is connected to the battery 5 to the arithmetic control circuit 2.
【0020】 [0020]
計量部1は、ガスの流量を検出する流量センサを備え、ガスの流量を演算制御部2に知らせる。 Weighing unit 1 is provided with a flow rate sensor for detecting the flow rate of the gas, informing the flow rate of the gas to the arithmetic and control unit 2. 流量センサとしては、例えば半導体フローセンサが用いられる。 The flow rate sensor, for example, a semiconductor flow sensor is used.
【0021】 [0021]
地震検知部8は、地震を検知する感震器を備え、この感震器からの地震検知信号を演算制御部2に送出する。 Earthquake detection unit 8 is provided with a seismic to detect an earthquake, and sends the earthquake detection signal from the seismic vessel to the arithmetic and control unit 2.
【0022】 [0022]
圧力検知部9は、ガスの圧力を検知する圧力センサを備え、ガス圧力信号を演算制御部2に送出する。 Pressure detecting portion 9 is provided with a pressure sensor for detecting the pressure of the gas, delivering the gas pressure signal to the arithmetic and control unit 2.
【0023】 [0023]
演算制御部2は、図示していないCPU、ROM、RAM、タイマ、不揮発性メモリなどを有する構成であり、計量部1からのガス流量信号を所定サイクル毎に読み取り、このガス流量信号からガス使用状態の異常判定を行い、異常の際には警報・遮断信号を出力する。 Calculation control unit 2, CPU (not shown), ROM, a structure having RAM, a timer, a non-volatile memory, a gas flow rate signals from the weighing unit 1 reads every predetermined cycle, gas used from the gas flow signal It performs abnormality determination of the state, at the time of abnormal outputs an alarm and blocking signals. また、地震検知部8からの地震検知信号に基づいて地震発生の判定を行うとともに、圧力検知部9からのガス圧力信号に基づいてガス圧力の異常判定を行い、異常の際には警報・遮断信号を出力する。 Also, with a determination of the earthquake based on the earthquake detection signal from the earthquake detection section 8 performs an abnormality determination of the gas pressure based on the gas pressure signal from the pressure detection unit 9, alarm-blocked during abnormal and it outputs the signal. 警報・遮断の発生履歴等については不揮発性メモリに記憶しておく。 It is stored in a nonvolatile memory for generating history of alarm and blocking.
【0024】 [0024]
駆動回路3は、演算制御部2からの警報・遮断信号に応じて駆動信号を出力する。 Drive circuit 3 outputs a drive signal in response to the warning and shut-off signal from the calculation control unit 2.
【0025】 [0025]
遮断部4は、駆動回路3からの駆動信号を受けてガス流路を遮断する。 Cut-off portion 4 blocks the gas passage by receiving a driving signal from the driving circuit 3.
【0026】 [0026]
表示部11は、駆動回路3からの駆動信号を受けて警報・遮断モードとなったことをLCDに表示する。 Display unit 11 displays that receives a drive signal from the drive circuit 3 becomes an alarm-blocking mode on the LCD.
【0027】 [0027]
通信インタフェース(I/F)部10は、演算制御部2に記憶された警報・遮断の発生履歴等を外部に通信したり、外部設定器との通信を行うための入出力回路である。 The communication interface (I / F) section 10, to communicate the occurrence history, etc. to an external alarm and blocking stored in the operation control unit 2, an input-output circuit for communicating with an external setter.
【0028】 [0028]
電池5としては、例えば、リチウム電池などが用いられ、その初期電流容量は6000[mAH]程度とする。 The battery 5, for example, a lithium battery is used, the initial current capacity to 6000 [mAH] degree. 同様に、電池12にもリチウム電池などが用いられるが、その初期電流容量は2000[mAH]程度である。 Similarly, such a lithium battery is used in cell 12, the initial current capacity is about 2000 [mAH]. 電池12の容量の方が電池5よりも小さいのは、遮断部4や駆動回路3で消費される電流量は演算制御部2等で消費されるものよりも大きいのであるが、遮断部4等は年間を通じてほとんど作動することがないことによるものである。 The direction of the capacity of the battery 12 is less than the battery 5 is the amount of current consumed by the cut-off portion 4 and the drive circuit 3 is greater than that consumed by the operation control unit 2 and the like, cut-off portion 4, etc. is due to the absence of that almost operate throughout the year.
【0029】 [0029]
残存容量推定部6は、独自の演算部、記憶部、タイマ、計数カウンタ等を有し、演算制御回路2の動作状態を把握することにより、各部で消費された電流量を算出して、電池5の残存容量を推定する。 Remaining capacity estimating section 6 has its own arithmetic unit, a storage unit, a timer, a count counter or the like, by grasping the operating state of the arithmetic and control circuit 2 calculates the amount of current consumed by each unit, battery the remaining capacity of 5 to estimate. この推定処理の詳細については後述する。 Details of the estimation process will be described later.
【0030】 [0030]
電圧検出部7は、電池5の電圧を検出する電圧検出器を備え、短絡等の動作不良が発生して残存容量推定部6で正確に推定値を算出することができないときに補助的に電池5の電圧を検出する。 Voltage detecting unit 7 includes a voltage detector for detecting a voltage of the battery 5, supplementarily battery when it is not possible to accurately calculate the estimated value in the remaining capacity estimating section 6 malfunctioning of a short circuit or the like occurs 5 of voltage to detect.
【0031】 [0031]
次に、残存容量推定部6における推定処理について図2及び図3を用いて説明する。 Will now be described with reference to FIGS. 2 and 3 for the estimation process in the remaining capacity estimating section 6. 図2(a)は演算制御部2で消費される電流の状態、同図(b)は遮断部4で消費される電流の状態を示す。 2 (a) is a state of current consumed by the operation control unit 2, (b) shows the state of the current consumed by the cut-off portion 4.
【0032】 [0032]
定常状態においては、演算制御部2は周期的に動作するので、演算制御部2により制御される計量部1や圧力検知部9等の各部も周期的に動作する。 In the steady state, the calculation control unit 2 is so operated cyclically, also periodically operating units such as the metering section 1 and the pressure detecting portion 9 which is controlled by the arithmetic and control unit 2. しかし、ガスの流量が増加した場合等の異常状態においては、警報・遮断モードとなり普段使用していない駆動回路3や遮断部4が作動するため演算制御部2の消費電流量は増加する。 However, in the abnormal state such as a case where the flow rate of the gas increases, current consumption of the arithmetic and control unit 2 for driving circuit 3 and the cut-off portion 4 to an alarm-blocking mode becomes not usually used to operate it is increased.
【0033】 [0033]
残存容量推定部6の記憶部では、定常状態において電池5により動作する各部で消費される単位時間当たりの平均電流量を記憶しておく。 The storage unit of the remaining capacity estimating section 6 stores the average current amount per unit time that is consumed by each unit to operate by the battery 5 in the steady state. また、異常が発生したときの1回当たりに電池5により動作する各部で消費される消費電流量(消費電流値とその駆動時間との乗算値)についても予め記憶しておく。 Also, previously stored also the amount consumed current abnormality is consumed in each section operated by a battery 5 per once, when that occurred (multiplied value of the current consumption value and its drive time).
【0034】 [0034]
図3は、残存容量推定部6での処理手順を示すフローチャートである。 Figure 3 is a flowchart showing a processing procedure in the remaining capacity estimating section 6.
【0035】 [0035]
まず、Step1で、異常状態の発生回数をカウントする。 First, in Step1, to count the number of occurrences of abnormal states. このカウントは、演算制御部2に大電流が流れた時の回数をカウントしてもよいし、駆動回路3や遮断部4の作動回数をカウントしてもよい。 This count may be to count the number of times when a large current to the calculation control unit 2 flows may count the number of operations of the driving circuit 3 and the cut-off portion 4.
【0036】 [0036]
Step2で、異常状態において電池5により動作する各部で消費した消費電流量を算出する。 In step2, it calculates a consumed amount of current consumed by each unit to operate by the battery 5 in the abnormal state. この算出は、カウントされた異常状態の発生回数と、予め記憶されていた1回当たりの消費電流量とを乗算することにより行う。 This calculation is performed by multiplying the number of occurrences of counted abnormal state, and a consumption current amount per one previously stored.
【0037】 [0037]
Step3で、定常状態において電池5により動作する各部で消費した消費電流量を算出する。 In step3, it calculates a consumed amount of current consumed by each unit to operate by the battery 5 in the steady state. この算出は、演算制御部2の動作時間を計測し、この動作時間と予め記憶しておいた平均電流値とを乗算することにより行う。 This calculation measures the operating time of the arithmetic and control unit 2 is performed by multiplying the average current value which has been previously stored the operating time.
【0038】 [0038]
Step4で、電池5の残存容量を推定する。 In step4, it estimates the remaining capacity of the battery 5. この推定は、電池5の初期電流容量からStep2で算出した異常状態における消費電流量とStep3で算出した正常状態における消費電流量を減算することにより行う。 This estimation is performed by subtracting the consumed amount of current in the normal state calculated by the amount of current consumption and Step3 in abnormal condition calculated in Step2 from the initial current capacity of the battery 5.
【0039】 [0039]
したがって、本実施の形態によれば、残存容量推定部6で、平均消費電流量と計測された動作時間とを乗算することによって定常状態における消費電流量を算出するとともに、異常が発生したときの1回当たりの消費電流量と計数された発生回数とを乗算することによって異常状態における消費電流量を算出し、これらを電池5の初期電流容量から減算するようにしたことで、疑似抵抗を用いて電池5の電圧を直接検出する必要がないので、電池5の寿命に影響を与えることなく電池5の残存容量を推定することができる。 Therefore, according to this embodiment, in the remaining capacity estimating unit 6, and calculates a consumed amount of current in the steady state by multiplying the operation was measured to average current consumption time, when abnormality occurs calculating a consumed amount of current in an abnormal state by multiplying the current consumption and counted number of occurrences per time, these by you is subtracted from the initial current capacity of the battery 5, using a pseudo-resistor it is not necessary to directly detect the voltage of the battery 5 Te, it is possible to estimate the remaining capacity of the battery 5 without affecting the service life of the battery 5.
【0040】 [0040]
また、電圧検出部7を併用したことにより、短絡等の動作不良が発生して電池5の残存容量を正確に推定できない場合に、補助的に電池5の電圧を検出することができる。 Also, by a combination of the voltage detection unit 7 can detect when a malfunction such as a short circuit can not be accurately estimated remaining capacity of the battery 5 is generated, the voltage of the auxiliary to the battery 5.
【0041】 [0041]
なお、駆動回路3や遮断部4に電源を供給する電池12についても残存容量を推定するようにしてもよい。 Incidentally, it may be also estimated remaining capacity for the battery 12 for supplying power to the drive circuit 3 and the cut-off portion 4. この場合には、図4に示すように、残存容量推定部15を遮断部4および演算制御部に接続し、電圧検出部14を電池12および演算制御部2に接続する。 In this case, as shown in FIG. 4, it is connected to the cut-off portion 4 and the arithmetic and control unit the remaining capacity estimating unit 15, connects the voltage detection unit 14 to the battery 12 and the arithmetic and control unit 2.
【0042】 [0042]
残存容量推定部15は、駆動回路3と遮断部4とが作動したときの1回当たりの消費電流値量を記憶しておき、駆動回路3と遮断部4の作動回数をカウントする。 Remaining capacity estimating unit 15 stores the consumption current value per one when the drive circuit 3 and the cut-off portion 4 is activated, it counts the number of operations of the cut-off portion 4 and the driving circuit 3. そして、演算制御部2からの指示に従って電池12の初期電流容量から1回当たりの消費電流量と作動回数との乗算値を減算することにより、電池12の残存容量を推定するようにする。 Then, by subtracting the multiplied value of the current consumption amount and the operating frequency per once from the initial current capacity of the battery 12 according to an instruction from the arithmetic control unit 2, so as to estimate the remaining capacity of the battery 12.
【0043】 [0043]
[第2の実施の形態] Second Embodiment
図5は、一実施の形態に係るガスメータ及びこれに用いる電池寿命推定装置の構成を示す図である。 Figure 5 is a diagram showing a configuration of a battery life estimation device for use in gas meter and this according to one embodiment. 同図の電池寿命推定装置は、図1の残存容量推定部6の代わりに使用可能時間推定部16を用い、この使用可能時間推定部16を電圧検出部17と演算制御部2に接続した構成となっている。 The battery life estimation device in FIG, using the available time estimation unit 16 instead of the remaining capacity estimating section 6 of FIG. 1, was connected to the available time estimating unit 16 and the voltage detection unit 17 to the calculation control unit 2 configured It has become. 電圧検出部17の基本的な構成は電圧検出部7と同様である。 The basic configuration of the voltage detection unit 17 is the same as the voltage detecting section 7. この使用可能時間推定部16は、図7のような経過時間に対する電池の電圧変化を示すグラフデータを記憶している。 The available time estimating unit 16 stores graph data indicating the voltage change of the battery with respect to the elapsed time as shown in FIG. 7. なお、その他、図1と同一物には同一の符号を付すこととし、ここでは説明を省略する。 The other, the same components as in FIG. 1 and that the same reference numerals, and a description thereof will be omitted.
【0044】 [0044]
図6は、使用可能時間推定部16での処理手順を示すフローチャートである。 Figure 6 is a flowchart showing a processing procedure in the available time estimating unit 16.
【0045】 [0045]
Step11で、電圧検出部17により検出された電池5の電圧を用いて、前回の検出電圧値と今回の検出電圧値との差分を分子とし、前回の電圧検出から今回の電圧検出までの経過時間を分母として傾きを算出する。 In Step11, using a voltage of the battery 5 detected by the voltage detection unit 17, an elapsed time of a difference between the detected voltage value and the detected voltage value of the current preceding and molecules, until the current of the voltage detection from the previous voltage detection to calculate the slope as the denominator.
【0046】 [0046]
Step12で、この傾きとグラフデータとを対応させて経過時間を求める。 In Step12, determine the elapsed time in correspondence with the this slope and graph data.
【0047】 [0047]
Step13で、電池の寿命期間からこの経過時間を減算することにより、残存する使用可能時間を推定する。 In Step13, by subtracting the elapsed time from the life of the battery, estimating the available time remaining.
【0048】 [0048]
したがって、本実施の形態によれば、使用可能時間推定部16で、前回の検出電圧値と今回の検出電圧値との差分を用いて傾きを算出し、この傾きとグラフデータとを対応させて経過時間を求め、この経過時間を電池5の寿命期間から減算するようにしたことで、電圧の検出回数を従来に比して大幅に低減することができ、電池の寿命を長くすることができる。 Therefore, according to this embodiment, in the available time estimation unit 16 calculates the slope using the difference between the detected voltage value and the detected voltage value of this last, a the slope and graph data in association obtains the elapsed time, it was so as to subtract the elapsed time from the life of the battery 5 can be significantly reduced compared to the number of times of detection of the voltage in the conventional, it is possible to extend the life of the battery .
【0049】 [0049]
また、グラフデータとして疑似抵抗を用いない開放電圧を検出したときのデータを記憶しておくようにすれば、電圧を検出する際に疑似抵抗を用いる必要がなくなるので、電池5の寿命に影響を与えることなく電池の使用可能時間を推定することができる。 Further, if such stored data upon detection of the open circuit voltage without using a pseudo resistor as graph data, since it is not necessary to use the pseudo-resistor when detecting the voltage, the affect battery life 5 it is possible to estimate the available time of the battery without giving.
【0050】 [0050]
なお、使用可能時間を推定する際に、温度補正を行うようにしてもよい。 Incidentally, when estimating the available time, it may be performed temperature compensation. この場合は、温度を変えたときの複数のグラフデータを使用可能時間推定部16に記憶しておくとともに、温度センサを設け、この温度センサにより検出された温度に基づいて適切なグラフデータを選択するようにする。 In this case, selection with stored to enable time estimation unit 16 a plurality of graph data when changing the temperature, the temperature sensor is provided, an appropriate graph data based on the temperature detected by the temperature sensor to be in.
【0051】 [0051]
この構成により、温度変動に対応した正確な使用可能時間を推定することができる。 With this configuration, it is possible to estimate an accurate usable time corresponding to the temperature variations.
【0052】 [0052]
もちろん、温度の他、電池の種類や、直列・並列の接続手法、電池の本数等を変えたときのグラフデータを保持し、これらを変更したときに適切に補正できるようにしてもよい。 Of course, other temperatures, and the type of battery, the series-parallel connection techniques, holds the graph data when changing the number of the battery may be able to appropriately correct when changing them.
【0053】 [0053]
【発明の効果】 【Effect of the invention】
以上、説明したように、本発明のガスメータ用電池寿命推定装置によれば、定常状態および異常状態における電池の消費電流量をそれぞれ算出し、これらを電池の初期電流容量から減算するようにしたことで、疑似抵抗を用いて電池の電圧を直接検出する必要がないので、電池の寿命に影響を与えることなく電池の残存容量を推定することができる。 As described hereinabove, according to the gas meter battery life estimating apparatus of the present invention, the current consumption amount of the battery in the steady state and the abnormal state is calculated respectively, so as to subtract them from the initial current capacity of the battery in, it is not necessary to detect the voltage of the battery directly using pseudo resistance, it is possible to estimate the remaining capacity of the battery without affecting the battery life.
【0054】 [0054]
また、本発明のガスメータ用電池寿命推定装置によれば、前回の検出電圧値と今回の検出電圧値とを用いて傾きを算出し、この傾きと経過時間に対する電池の電圧変化とを対応させて経過時間を求め、この経過時間を電池の寿命期間から減算して使用可能時間を推定するようにしたことで、電圧の検出回数を従来に比して大幅に低減することができ、電池の寿命への影響を低減することができる。 Further, according to the gas meter battery life estimating apparatus of the present invention to calculate the slope by using the detected voltage value and the current detected voltage value of the previous, corresponding to the voltage change of the battery with respect to the elapsed time and the inclination obtains the elapsed time, it was to estimate the to enable time subtracting the elapsed time from the life of the battery, can be significantly reduced compared to the number of detected voltages in a conventional, battery life it is possible to reduce the influence of the.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】第1の実施の形態に係るガスメータ及びこれに用いる電池寿命推定装置の構成を示すブロック図である。 1 is a block diagram showing a configuration of a battery life estimation apparatus used gas meter and thereto according to the first embodiment.
【図2】(a)は演算制御部2での消費される電流の状態、(b)は遮断部4での消費される電流の状態を示す図である。 2 (a) is a state of current consumption in the arithmetic control unit 2 is a diagram showing a state of the current consumed at (b) is cut-off portion 4.
【図3】残存容量推定値6における処理手順を示すフローチャートである。 3 is a flowchart showing a processing procedure in the remaining capacity estimated value 6.
【図4】電池寿命推定装置の他の構成例を示す図である。 4 is a diagram showing another configuration example of the battery life estimator.
【図5】第2の実施の形態に係るガスメータ及び電池寿命推定装置の構成を示すブロック図である。 5 is a block diagram showing the configuration of a gas meter and battery life estimation apparatus according to the second embodiment.
【図6】残存容量推定値16における処理手順を示すフローチャートである。 6 is a flowchart illustrating a processing procedure in the remaining capacity estimated value 16.
【図7】経過時間に対する電池の電圧変化を示すグラフである。 7 is a graph showing a voltage change of the battery with respect to the elapsed time.
【符号の説明】 DESCRIPTION OF SYMBOLS
1…計量部2…演算制御部3…駆動回路4…遮断部5,12…電池6,15…残存容量推定部7,14,17…電圧検出部8…地震検知部9…圧力検知部10…通信I/F部11…表示部16…使用可能時間推定部 1 ... weighing unit 2 ... arithmetic and control unit 3 ... driving circuit 4 ... cutoff portion 5 and 12 ... battery 6,15 ... remaining capacity estimating section 7,14,17 ... voltage detection unit 8 ... earthquake detection section 9 ... pressure detecting portion 10 ... communication I / F unit 11 ... display unit 16 ... available time estimation unit

Claims (2)

  1. ガスメータに用いられる電池の寿命を推定するガスメータ用電池寿命推定装置であって、 A gas meter battery life estimating apparatus for estimating the life of batteries used in the gas meter,
    経過時間に対する前記電池の電圧変化について記憶しておく記憶手段と、 A storage means for storing the voltage change of the battery with respect to the elapsed time,
    前記電池の電圧を検出する電圧検出手段と、 Voltage detecting means for detecting a voltage of said battery,
    前回の検出電圧値と今回の検出電圧値とを用いて傾きを算出する傾き算出手段と、 And inclination calculation means for calculating an inclination with previous detection voltage value and the current detection voltage value,
    算出された傾きと前記電圧変化とを対応させて経過時間を求める経過時間求出手段と、 Calculated as the slope of said voltage changes and elapsed time Motomede means for determining the elapsed time in correspondence,
    求めた経過時間を前記電池の寿命期間から減算して使用可能時間を推定する推定手段と、 And estimating means for estimating the elapsed time the subtraction to the time allowed from the life of the battery determined,
    を有することを特徴とするガスメータ用電池寿命推定装置。 Gas meter battery life estimation apparatus characterized by having a.
  2. 前記記憶手段は、温度を変えたときの複数のグラフデータを記憶したものであって、 Wherein the storage unit, there is stored a plurality of graph data when changing the temperature,
    温度を検出する温度検出手段と、 Temperature detecting means for detecting the temperature,
    検出された温度に基づいて前記経過時間算出手段で用いられるグラフデータを選択する選択手段と、 Selecting means for selecting the graph data to be used by the elapsed time calculating means based on the detected temperature,
    を有することを特徴とする請求項記載のガスメータ用電池寿命推定装置。 Gas meter battery life estimating apparatus according to claim 1, wherein a.
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US10065082B2 (en) 2014-07-22 2018-09-04 Taylor Made Golf Company, Inc. Golf club
USD772996S1 (en) 2015-07-16 2016-11-29 Taylor Made Golf Company, Inc. Golf club head

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