JP2004333192A - Analog radio correction watch, and method for displaying the same - Google Patents

Analog radio correction watch, and method for displaying the same Download PDF

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Publication number
JP2004333192A
JP2004333192A JP2003126342A JP2003126342A JP2004333192A JP 2004333192 A JP2004333192 A JP 2004333192A JP 2003126342 A JP2003126342 A JP 2003126342A JP 2003126342 A JP2003126342 A JP 2003126342A JP 2004333192 A JP2004333192 A JP 2004333192A
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Prior art keywords
time
reception
display
internal clock
hands
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JP2003126342A
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Japanese (ja)
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JP4542750B2 (en
Inventor
Koji Baba
康治 馬場
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Seiko Time Creation Inc
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Seiko Clock Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an analog radio correction watch that inspects the disagreement between the time of an internal clock and time indicated by electronic clock hands for correction when possible, and warms a user that time display is not based on standard time even if standard time radio waves are successfully received when it cannot be corrected. <P>SOLUTION: The analog radio correction watch comprises the internal watch A-2 for generating internal time; electronic clock hands B for displaying display time while being driven by the internal watch; a reception circuit G for receiving standard time radio waves; a means L for displaying the result of the reception success of the standard time radio waves in the reception circuit; a control unit A-1 that is a means for correcting the internal time of the internal watch and the display time of the electronic clock hands, based on the standard time when the reception circuit succeeds in reception; a means D for detecting agreement/disagreement between the internal time of the internal watch and the display time of the electronic clock hands; and the control unit A-1 that is a means for setting the display of a means for displaying the result of the reception success as the display of reception failure, when disagreement is detected by a detection means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、標準時刻電波を受信して内部時計を修正するアナログ式電波修正時計及びアナログ式電波修正時計の表示方法に関する。
【0002】
【従来の技術】
従来のアナログ式電波修正時計としては、特許文献1に開示されるように、定期的に標準時刻電波を受信して内部時計を修正し、この内部時計により駆動される時針、分針、秒針等の指針による表示時刻を修正する動作を行ない、受信が成功した場合はたとえば緑のLED、失敗した場合は赤のLED表示をするなどして受信成否の結果をユーザが確認できるようにしたものがある。
【0003】
【特許文献1】
特開2000−249777号(段落[0029][0033]参照)
【0004】
【発明が解決しようとする課題】
従来のアナログ式電波修正時計は、アナログ式電波修正時計のリセット時や電池交換時にのみ内部時計の時刻と時針、分針、秒針等の指針による表示時刻との一致を確認して修正する動作をし、それ以外の通常運針中は内部時計の時刻と時針、分針、秒針の指針による表示時刻は一致をしているものと推定し、標準時刻電波の受信に成功して標準時刻を獲得すると、標準時刻に合わせて内部時計の時刻を修正し、そして、この内部時計の修正をそのまま時針、分針、秒針等の指針による表示時刻の修正に反映している。
【0005】
しかし、従来のアナログ式電波修正時計の通常運針中になんらかの理由(例えば、時針、分針、秒針を駆動するモータの電池消耗、振動)で、内部時計の時刻と時針、分針、秒針等の指針による表示時刻との間にずれが生ずると、そのずれを検出・修正することなく標準時刻に合わせて内部時計の時刻を修正し、そして、この内部時計の修正をずれを有する時針、分針、秒針等の指針による表示時刻の修正に反映するため、ずれのため誤った表示時刻を指針が表示しているにもかかわらず、受信成功の緑のLED表示をする。この結果、受信成功の緑のLED表示を見たユーザは、ずれによる誤った指針の表示時刻を標準時刻に合った時刻と誤解するおそれがある。
【0006】
【課題を解決するための手段】
本発明は、上記した従来の課題を解決することを目的としている。本発明は上記課題を解決するために、簡単に言えば、アナログ式電波修正時計の通常運針中に内部時計と時針、分針、秒針等の指針による表示時刻との間にずれがあると判断した場合、そのずれを修正して内部時計に指針を一致させる動作を行う。
【0007】
また、本発明は上記課題を解決するために、簡単に言えば、アナログ式電波修正時計の通常運針中に内部時計と時針、分針、秒針等の指針による表示時刻との間のずれ量を検出し、そのずれ量が修正可能な場合には補正して、その後の標準時刻電波の受信に成功して内部時計の時刻を修正した時は、受信成功の表示をする。そのずれ量が検出できず及び/又は補正できない場合は、その後たとえ標準時刻電波の受信に成功しても、受信失敗の表示をする。
【0008】
すなわち、請求項1に記載の本発明によれば、内部時計の特定時刻に標準時刻電波を受信し、当該標準時刻電波の時刻コード信号に基づいて前記内部時計の時刻と指針の示す時刻とを修正する時刻修正動作を行うアナログ式電波修正時計において、所定位置において上記指針の位置検出を行う位置検出手段と、通常運針中に上記位置検出手段の出力に応じた上記内部時計の時刻に基づいて上記指針の位置を修正する動作を行う制御手段を有することを特徴とするアナログ式電波修正時計が提供される。
【0009】
この請求項1に記載のアナログ式電波修正時計によれば、内部時計の内部時刻と指針の表示時刻との間の不一致が検出された場合は指針を内部時計に合わせる修正動作を行う。この結果、ユーザがより正確な時刻を取得することが可能となる。
【0010】
請求項2に記載の本発明によれば、請求項1記載のアナログ式電波修正時計において、上記内部時計の時刻と上記指針位置の一致・不一致の表示手段を有し、前記制御手段は、上記内部時計の所定範囲時間において上記指針の位置検出ができなかった場合は、上記表示手段において不一致の表示を行うことを特徴とする請求項1に記載のアナログ式電波修正時計が提供される。
【0011】
この請求項2に記載のアナログ式電波修正時計によれば、指針が内部時計とずれていることを検出してユーザに報知する。
【0012】
請求項3に記載の本発明によれば、請求項1又は2記載のアナログ式電波修正時計において、上記制御手段は、上記内部時計の所定時間範囲内における上記位置検出手段からの出力に応じて上記指針の位置のずれ量を検出する手段と、上記修正する動作として、上記指針が上記内部時計より進んでいる場合は、該ずれ量に応じて上記指針の駆動ステップモータを駆動するステップパルスの出力を停止し、上記指針が内部時計より遅れている場合は、該ずれ量に応じたステップパルスを追加して出力することで上記指針の位置を修正する動作を行う修正手段とを有することを特徴とするアナログ式電波修正時計が提供される。
【0013】
この請求項3に記載のアナログ式電波修正時計によれば、内部時計の時刻と指針の表示時刻との間のずれ量を検出し、ずれ量が検出された場合は指針のずれ量を補正するためステップモータの駆動ステップパルスの出力を停止あるいは追加する。したがって、修正するための複雑な修正機構を持たなくても指針の修正動作が可能となる。
【0014】
請求項4に記載の本発明によれば、請求項2又は3記載のアナログ式電波修正時計において、上記一致・不一致の表示手段は上記標準時刻電波の受信の成功又は失敗を表示し、不一致あるいは失敗の場合は不一致の表示を行うことを特徴とする請求項3に記載のアナログ式電波修正時計が提供される。
【0015】
この請求項4に記載のアナログ式電波修正時計によれば、標準時刻電波の受信の成功又は不成功と指針の内部時計との一致・不一致の表示を共用としていて、不一致あるいは受信失敗の場合は不一致の表示を行うことで指針が正確でないことをユーザに報知することが出来る。
【0016】
請求項5に記載の本発明によれば、請求項1乃至4に記載のアナログ式電波修正時計において、上記位置検出手段は複数あり、通常運針中に一の位置検出手段の出力に応じて上記内部時計の時刻に基づいて上記指針を修正する動作を行った後、他の位置検出手段により上記指針が修正されているか否かを検出することを特徴とするアナログ式電波修正時計が提供される。
【0017】
この請求項5に記載のアナログ式電波修正時計によれば、運針中の修正動作後に、次の位置検出手段により前回の修正動作により指針が確実に修正されているか確認することが可能となる。これによりユーザはアナログ式電波修正時計上で正しい表示時間を確認できる。
【0018】
請求項6に記載の本発明によれば、標準時刻電波の受信を試みてその受信の成功又は失敗を表示するステップと、受信に成功した場合は上記内部時計と上記指針による表示時刻の時刻修正をするステップと、通常運針中に内部時計と指針による表示時刻との間にずれがあるかどうかを検出するステップと、ずれがあると検出した場合は受信失敗の表示をするステップとを含むことを特徴とするアナログ式電波修正時計の表示方法が提供される。
【0019】
この請求項6に記載の方法によれば、内部時計の時刻と指針の表示時刻との間のずれを検出して、ずれが検出された場合はその後に受信回路が受信に成功した時でも結果を表示する手段が受信失敗の結果を表示することにより、ユーザが受信失敗の表示を見て警告を受け、この結果、ユーザが内部時計の時刻に対してずれを有する表示時刻が標準時刻に合った時刻と誤解することがなくなる。そして、ユーザが表示時刻のずれを無くするために必要なリセット動作や電池交換等をアナログ式電波修正時計に対して行なうことができる。
【0020】
請求項7に記載の本発明によれば、上記ずれがあるかどうかを検出するステップは、補正可能なずれ量と補正不可能なずれ量を検出するサブステップと、補正可能なずれ量を検出した場合は上記指針のずれ量を補正する動作を行い受信成功の表示をするサブステップとを含み、補正不可能なずれ量を検出した場合は上記受信失敗の表示をするステップを行なうことを特徴とする請求項6に記載のアナログ式電波修正時計の表示方法が提供される。
【0021】
この請求項7に記載の方法によれば、補正可能なずれ量が検出された場合は指針のずれ量を補正し、補正不可能なずれ量を検出した場合はその後に標準時刻電波の受信に成功した時でも受信失敗の結果を表示する。この結果、ずれ量を補正する動作を行ったならば、内部時計の時刻修正で表示時刻も同様に修正できたものとして標準時刻電波の受信の成功はそのまま成功表示をし、ずれ量が補正できなかった場合は、ユーザが受信失敗の表示を見て警告を受けることでずれを有する表示時刻が標準時刻に合った時刻と誤解するおそれがなくなる。そして、ユーザが表示時刻のずれを無くするために必要なリセット動作や電池交換等をアナログ式電波修正時計に対して行なうことができる。
【0022】
【発明の実施の形態】
以下、添付図面を参照して本発明をその好適な実施の形態について詳細に説明する。図1は、本発明の1つの実施の形態によるアナログ式電波修正時計の要部を示すブロック図である。
【0023】
図1に示される本実施の形態のアナログ式電波修正時計は、図示しない発信局から電波送信される標準時刻電波の時刻コード信号を、特定時刻に受信アンテナF及び受信回路Gを介して中央制御装置(CPU)Aに受信する。受信回路Gを介して標準時刻コードが受信できた場合は、中央制御装置Aは受信成否を示すLED等の表示灯Lの表示を成功を示す緑色で表示し、標準時刻コードが受信できなかった場合は表示灯Lの表示を失敗を示す赤色で表示する。なお、標準時刻電波を受信する特定の時刻は、内部時計A−2の内部時刻が毎日、午前2時になる時刻等であってよい。受信回路Gにより受信された信号は中央制御装置(CPU)A内の判定手段である制御部A−1から内部電子時計A−2に供給される。この時刻コード信号に基づいて、内部時計A−2の内部時刻を修正すると共に、輪列Cを駆動してアナログ時計の指針B(図3に図示)が指す表示時刻を修正する時刻修正動作を行う。
【0024】
アナログ時計の指針Bを駆動する時計機械体の輪列C(図2に図示)には、指針Bが所定位置にずれがない状態にあることを検出する位置検出機構Dが備わっている。後で詳細に説明するが、通常運針のときに内部時計A−2の内部時刻の所定時間(例えば、午前12時と午後12時とすると、指針Bが午前12時と午後12時を表示する位置が上記所定位置となる)に、内部電子時計A−2の内部時刻が午前12時のときに指針Bが所定位置である午前12時の位置にあるか否か、同様に内部時刻が午後12時のときに指針Bが午後12時の位置にあるか否かを位置検出機構Dを用いて制御部A−1により判定する。指針Bが所定時間内に位置検出機構Dの所定位置を通過しない場合は、指針Bを内部時刻のと一致する位置に補正ができないと判定して、内部時計の現在時刻と指針の表示時刻が合っていないことをユーザに警告するため、表示灯Lの表示を受信成否結果の失敗表示とする。すなわち、表示灯Lの表示を赤にする。
【0025】
この表示灯Lの失敗表示は、この後にたとえ受信回路Gが標準時刻電波の受信に成功して制御部A−1が標準時刻コードに基づいて内部時計A−2の内部時刻を修正し、その修正量に対応して指針Bを補正するように移動しても、内部時計の時刻と指針Bの表示時刻とは一致していないものであるため継続される。なお、ユーザが図示しないアナログ式電波修正時計のリセットボタンを押すか又は電源Eを交換することで制御部のリセット動作を行なうことができる。この場合は、後で詳述するように制御部A−1が輪列Cと位置検出機構Dを使用して、標準電波を受信して標準時刻コードで修正された内部時計A−2の内部時刻に対して指針Bの表示時刻を一致させて両時刻のずれを解消させ、表示灯Lの表示は受信成功を示す緑色に変える。
【0026】
次に図2を参照して位置検出機構Dにより検出された指針Bの指す表示時刻と、内部電子時計A−2の内部時刻とが一致しているか否かの検出方法を詳細に説明する。図2はアナログ式時計機械体の輪列Cの要部の断面図であり、秒針はスイープ運針、時分針は10秒ステップ運針を行うように構成してある。下ケース10と中ケース11との間に、電源E(図1図示)から電源の供給を受けて動作する第1の10秒ステップ駆動モータ1により回転駆動される時分針車駆動輪列が設けてある。即ち、モータのロータ1、駆動車2、中間車3、分針車4、日の裏車5及び時針車6がそれぞれ回転自在に軸支され、順次噛合して減速輪列を構成している。また、中ケース11と上ケース12との間に、図示しない第2のスイープ駆動モータにより回転駆動される秒針車駆動輪列が設けてある。即ち、モータ歯車に噛合する不図示の2番車、3番車7及び秒針車8が回転自在に軸支され、順次噛合して減速輪列を構成している。分針車4と時針車6と秒針車8とは、中ケース11に一体的に設けてあるパイプ11bにそれぞれ回転可能に嵌合し、下ケース10からの突出端に、図3に示す分針、時針、秒針からなる指針Bが取り付けられ、指針Bが同心的に回転する所謂中3針式のアナログ時計に構成してある。
【0027】
輪列C(すなわち、指針B)の位置検出機構Dについて説明する。3番車7には、位置検出用の小さい透孔7aと、この透孔7aよりも小径で回転中心から近距離でかつ透孔7aと180度離れた位置に輪列組み込み用の位置決め孔7bが形成してある。
【0028】
図4に示すように秒針車8には、同一円周上で180度離れた位置に位置検出用の透孔8aと反射板からなる反射部8bが形成してある。また透孔8aを中心に両側に2ヶづつ60度間隔で透孔8c、8d、8e、8fが開いている。中間車3には同一円周上に120度間隔で3つの透孔3aが、分針車4には前記の透孔8aと同一半径の円周上に120度間隔で3つの透孔4aが形成してある。時針車6には前記の透孔8aと同一半径の円周上に7つの透孔6aが形成してある。後述のように8つの基準時刻があるので、透孔6aは8つ必要であるが、2つの透孔を繋いでいるので7つの透孔6aを設ければよい。また、中ケース11には位置検出用の透孔7a,8a,3a,4a,6aと上下に一直線上に揃うように透孔11aが形成してある。これらの位置検出用の透孔が上下に一直線上に揃う時刻は、12:00,1:40,3:00,5:40,6:00,8:20,9:00,11:00の8回あり、これを基準時刻としている。隣り合う基準時刻との時間間隔は全て異なっている。この異なる時間間隔により、リセット時に指針Bの絶対的位置を制御部A−1が検出できる。
【0029】
下ケース10には、この一直線上に揃った透孔6aと対向する位置に発光ダイオード9が固定してあり、3番車7の上部に配設してある基板13には、この一直線上に揃った透孔7aと対向する位置に発光素子と受光素子とを備えた反射型センサ14が固定してある。
【0030】
リセット時等の初期の指針Bの位置検出は、先ず秒針の位置検出を秒針車8の反射板8bと反射型センサ14で行い、位置検出ができたら秒針Bを0秒の位置まで移動して止める。0秒の位置では3番車7の透孔7aと秒針車8の透孔8aとが上下に揃っている。次に発光ダイオード9を発光させて時分針を回転させると、中間車3、分針車4、時針車6の透孔3a,4a,6aが重なった時に発光ダイオード9の光が反射型センサ14に届く。この位置は前記の8つの基準時刻のいずれかであるので、時分針の回転を続けて再び透孔が重なって反射型センサ14に光が届く位置に来た時に、最初に透孔が一致した時との時間間隔を確認して2度目に透孔が重なったときの位置を割り出す。これで時分秒針の全てがどの位置にあるかが認識でき、リセット時において初期の指針Bの絶対的な位置検出が終了する。
【0031】
次に図5を図2と併せて参照して、本発明の実施の形態のアナログ式電波修正時計の通常運針時において、内部時計A−2の内部時刻に対する指針Bに表示時刻の位置検出を午前12時と午後12時の2回おこなう方法を説明する。まず、内部電子時計A−2の内部時刻が所定の時刻(午前12時と午後12時)の正時20秒前になった時(すなわち、午前11時59分40秒又は午後11時59分40秒)に発光ダイオード9を点灯させて、本実施の形態の方法を開始する。そして反射型センサ14の入力を確認する(S1)。
【0032】
内部電子時計A−2が所定の時刻(午前12時と午後12時)の正時(12:00:00秒乃至12:00:09の間)にちょうど発光ダイオード9から発した光が、一直線に揃った全ての透孔6a,4a,3a,11a,8a,7aを通過して反射型センサ14で検出できれば、時針、分針、秒針からなる指針Bの指す表示時刻と内部電子時計A−2の内部時刻とが一致している、即ち、正常状態であると制御部A−1により判定される(S4)。従って、受信結果表示を示す表示灯Lを受信成功の緑表示にする(S7)。
【0033】
しかし、制御部A−1が、内部時計の内部時刻の正時の1秒前乃至10秒前(11:59:50〜11:59:59)に光を検出した場合は指針Bが10秒進んでいると判断する(S3)。従って、10秒ステップ駆動モータ1への駆動パルスの発信を1パルス止める(S8)。その後に受信結果表示を示す表示灯Lを受信成功の緑表示にする(S7)。
【0034】
制御部A−1が、内部時計の内部時刻の正時の11秒前乃至20秒前(11:59:40〜11:59:49)に光を検出した場合は指針Bが20秒進んでいると判断する(S2)。従って、10秒ステップ駆動モータ1への駆動パルスの発信を2パルス止める(S9)。その後に受信結果表示を示す表示灯Lを受信成功の緑表示にする(S7)。
【0035】
逆に、制御部A−1が、内部時計の内部時刻の正時の10秒後乃至19秒後(12:00:10〜12:00:19)に光を検出した場合は指針Bが10秒遅れていると判断する(S5)。従って、10秒ステップ駆動モータ1への駆動パルスを1パルス追加する(S10)。その後に受信結果表示を示す表示灯Lを受信成功の緑表示にする(S7)。
【0036】
また、20秒後乃至29秒後(12:00:20〜12:00:29)に光を検出した場合は指針Bは20秒遅れていると判断して、10秒ステップ駆動モータ1への駆動パルスを2パルス追加する(S6)。その後に受信結果表示を示す表示灯Lを受信成功の緑表示にする(S7)。
【0037】
もし、反射型センサ14による光の検出が正時から30秒を経過しても行なわれない場合(S11)は、内部時計の内部時刻に対する指針Bのずれが±20秒を超えているため通常運針中に補正不可能と判定して、受信結果表示を示す表示灯Lを受信失敗の赤表示にする(S12)。
【0038】
このように、内部時計の内部時刻に対する指針Bのずれ量(±10秒又は±20秒)が判断できた場合は指針Bを内部電子時計合うように指針位置を補正する動作を行う。また±20秒以内で反射型センサ14で光が検出できないときは、内部電子時計A−2の時刻と指針Bの指している表示時刻とが一致しておらず、また補正も出来ないので、制御部A−1により不一致と判定する。そして、表示灯Lを受信失敗の赤表示にする。
【0039】
この表示灯Lの受信失敗の赤表示は、前述の通り、そして以下に、図6を参照して詳細に説明するように、ユーザが図示しないアナログ式電波修正時計のリセットボタンを押すか又は電源Eを交換することで、後で詳述するように制御部A−1が輪列Cと位置検出機構Dを使用して、標準電波を受信して標準時刻コードで修正された内部時計A−2の内部時刻に対して指針Bの表示時刻を一致させて両時刻のずれを解消させるリセット動作をする場合に、表示灯Lの表示は受信成功を示す緑色に変えることができる。
【0040】
図6を図1と併せて参照すると、アナログ式電波修正時計では、制御部A−1は内部時計A−2が所定時刻(例えば、午前2時)になると受信回路GをオンにしてアンテナFから標準時刻電波を受信して標準時刻コードを制御回路A−1が獲得して、標準時刻コードに基づいて内部時計A−2の内部時刻及び指針Bの表示時刻を修正する。この際、本実施の形態のアナログ式電波修正時計では、制御部A−1は、受信開始後に受信回路Gが標準時刻電波の受信に成功したかどうかを判定する(S21)。この判定で、もし、標準時刻電波の受信に失敗したならば、表示灯Lを赤にする。ユーザに内部時刻及び指針Bの表示時刻がもはや標準時刻に基づいて修正されていないことを警告する(S22)。もし、標準時刻電波の受信に成功したならば、図5に示した方法により、直前の検査で内部時計A−2の内部時刻に対する指針Bの位置確認ができたか判定する(S23)。もし、位置確認ができなかった場合は、表示灯Lの表示を赤ににする。これによりユーザは内部時刻と指針Bの表示時刻が一致しておらず、指針Bは表示時刻は標準時刻に基づいて修正されていないことがわかる(S22)。直前の検査で内部時計A−2の内部時刻に対する指針Bの位置が確認できた場合は、受信に成功し、しかも指針Bによる表示時刻は標準時刻に基づいて修正動作をされていることを示すために、表示灯Lの表示を緑にする(S24)。
【0041】
なお、図5で説明した実施の形態の方法では、指針Bの位置検出を所定時間の前後20秒間とし、前後20秒若しくは前後10秒のずれ量が判断できれば修正動作を行うようにしてあるが、特定の時間(例えば、午前及び午後12時の正時の両方又は一方)のみ位置検出を行ない、その時に検出できなければ不一致と判断してもよい。
【0042】
なお、図2と図5の説明については正確に言えば例外があり、一致と判定される位置が前記の通り8つあるのであるが、位置検出の時刻である12時に対して、丁度60分遅れているとか、丁度100分進んでいるなどということは有り得ないので、12時に行う毎日の位置検出に問題は生じない。
【0043】
また、図2で説明した3番車7の透孔7aと秒針車8の図4の透孔8aの大きさを調整して、約1秒間で光路を横切るように設定してある。このために、内部電子時計A−2の時刻と指針Bの指している時刻とが一致している場合には、全ての透孔6a,4a,3a,11a,8a,7aが12時に約1秒間上下に一直線上に重なるので、この間に発光ダイオード9からの光の通過が、反射型センサ14により確実に検出できる。
【0044】
なお、本実施の形態では、受信結果表示の例として、表示灯Lを2色LEDとし、受信成功の場合は緑、失敗の場合は赤点灯させてユーザーに知らせると説明したが、これに限らずさまざまな方法や色表示で受信成否の結果の表示を行うことかできる。また、受信結果と、指針の位置検出の結果を別体の表示とすることや指針の運針方法等のLEDによらないユーザへの報知手段をとることも可能である。さらに、表示方法を常時表示するのではなく、ユーザの指示があった場合、例えば表示スイッチを配置して、表示スイッチがオンされたときのみ表示することも可能である。
【0045】
一度、受信成否結果表示を指針Bの位置の検出が出来なかったことにより失敗とした場合にはその後受信に成功しても、常に受信失敗の赤のままとする。しかし、その後の定期的な指針Bの位置検出動作で位置検出ができた場合や、ユーザがリセットボタンの押圧あるいは電池交換によりリセット動作を行った場合は、受信の成否及び指針の位置検出の可否により、表示灯が成功表示の青又は失敗表示の赤に変わる。
【0046】
なお、電波による時刻の修正は、通常24時間毎に行っており、内部時計で午前・午後の判別を行って、例えば、午前2時に行うようにしている。しかし、午前2時に受信が正しく行えなかった場合には、午前5時、午後2時、または午後5時に行うようにしている。
【0047】
位置検出機構Dを作動させる時刻は、前記のように内部電子時計A−2が12時としたが、通常は内部時計A−2により午前・午後の判別を行って午後12時のみの24時間毎としてもよい。しかし、更に精度を上げるために前記の基準時刻毎に8回行うように設定してもよい。
【0048】
図2で説明した本実施の形態では、位置検出機構Dを輪列Cを構成する歯車に設けた透孔を用いて検出する構成としているが、これに限られるものでなく、輪列Cとは別に、指針Bが所定の位置にあるか判定できる機構や、ずれ検出機構を設けてもよい。この場合には、前記の基準時刻に限られるものではなく、任意の時刻に検出時刻を設定することが可能である。
また、本実施例に拠れば、指針を修正するパルスを出力した後の指針の修正動作の確認は次回の位置検出時となる。しかし、例えば位置検出の数分後に次回の位置検出を行う位置検出手段を設けることで、指針の修正動作の確認ができ、さらに修正が不十分であった場合には、再度の修正動作を行うことができる。
【0049】
【発明の効果】
本発明によれば、内部時計に対して指針がずれていることにより表示時間が正確に表示できない場合は、受信成否結果表示を成功表示としないため、ユーザーが表示時間が正しいと誤認識することが無くなる。そして、リセットボタンの押圧あるいは電池交換により内部時計に対する指針のずれを解消する適切な作業を促進できる。
【図面の簡単な説明】
【図1】本発明の1つの実施の形態によるアナログ式電波修正時計の要部を示すブロック図。
【図2】本発明の1つの実施の形態によるアナログ式電波修正時計の輪列を示す概略断面図。
【図3】本発明の1つの実施の形態によるアナログ式電波修正時計の指針と表示灯を示す正面図。
【図4】本発明の1つの実施の形態によるアナログ式電波修正時計の秒針位置を検出するために秒針車に設けられた透孔と反射部を示す正面図。
【図5】本発明の1つの実施の形態によるアナログ式電波修正時計の表示方法を示すフローチャート。
【図6】本発明の1つの実施の形態によるアナログ式電波修正時計の表示方法を示すフローチャート。
【符号の説明】
8 秒針車
8a、8c、8d、8e、8f 透孔
8b 反射部
9 発光ダイオード
14 反射型センサ
A−1 制御部
A−2 内部時計
B 指針
C 輪列
D 位置検出機構
L 表示灯
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an analog radio-controlled timepiece that corrects an internal clock by receiving a standard time radio wave, and a display method of the analog radio-controlled timepiece.
[0002]
[Prior art]
As a conventional analog radio-controlled timepiece, as disclosed in Patent Document 1, a standard time radio wave is periodically received to correct an internal clock, and an hour hand, a minute hand, a second hand, and the like driven by the internal clock are used. There is an operation in which the display time is corrected by the pointer, and a green LED is displayed when the reception is successful, and a red LED is displayed when the reception is unsuccessful, so that the result of the reception success or failure can be confirmed by the user. .
[0003]
[Patent Document 1]
JP-A-2000-249777 (see paragraphs [0029] and [0033])
[0004]
[Problems to be solved by the invention]
Conventional analog radio-controlled watches operate only when the analog radio-controlled timepiece is reset or when the battery is replaced, confirming that the time on the internal clock matches the time displayed by the hands such as the hour hand, minute hand, and second hand. During other normal hand movements, it is assumed that the time of the internal clock and the time indicated by the hands of the hour hand, minute hand, and second hand match, and when the standard time signal is successfully received and the standard time is acquired, The time of the internal clock is corrected in accordance with the time, and the correction of the internal clock is directly reflected on the correction of the displayed time by hands such as the hour hand, minute hand, and second hand.
[0005]
However, during the normal hand movement of a conventional analog radio-controlled timepiece, the time of the internal clock and the hands of the hour hand, minute hand, second hand, etc. may be changed for some reason (for example, the battery running out of the motor driving the hour hand, minute hand, and second hand, and vibration). If there is a deviation from the displayed time, the time of the internal clock is adjusted to the standard time without detecting or correcting the deviation, and the correction of the internal clock is performed by the hour hand, minute hand, second hand, etc. In order to reflect the correction of the display time by the pointer, the green LED display of the successful reception is performed even though the pointer displays the wrong display time due to the deviation. As a result, the user who sees the green LED display indicating successful reception may misunderstand the display time of the wrong hand due to the deviation as a time that matches the standard time.
[0006]
[Means for Solving the Problems]
An object of the present invention is to solve the above-mentioned conventional problems. In order to solve the above problem, the present invention simply determined that there was a difference between the internal clock and the time displayed by the hands such as the hour hand, minute hand, and second hand during normal operation of the analog radio-controlled timepiece. In such a case, an operation of correcting the deviation and matching the hands with the internal clock is performed.
[0007]
In addition, the present invention, in order to solve the above-mentioned problem, simply detects the amount of deviation between the internal clock and the time indicated by the hands such as the hour hand, minute hand, and second hand during normal operation of the analog radio-controlled timepiece. If the deviation can be corrected, it is corrected. If the subsequent standard time radio wave is successfully received and the time of the internal clock is corrected, a message indicating that the reception was successful is displayed. If the shift amount cannot be detected and / or cannot be corrected, the reception failure is displayed even if the standard time radio wave is successfully received thereafter.
[0008]
That is, according to the first aspect of the present invention, a standard time radio wave is received at a specific time of the internal clock, and the time of the internal clock and the time indicated by the hands are determined based on the time code signal of the standard time radio wave. In an analog radio-controlled timepiece that performs a time correction operation for correcting, based on a time of the internal clock corresponding to an output of the position detection means during a normal hand operation, and a position detection means for detecting the position of the hands at a predetermined position. An analog radio-controlled timepiece having control means for performing an operation of correcting the position of the hands is provided.
[0009]
According to the analog radio-controlled timepiece of the first aspect, when a mismatch between the internal time of the internal clock and the displayed time of the hands is detected, a correction operation of adjusting the hands to the internal clock is performed. As a result, the user can obtain a more accurate time.
[0010]
According to the second aspect of the present invention, in the analog radio-controlled timepiece according to the first aspect, there is provided a display means for indicating whether or not the time of the internal clock and the position of the pointer match or not, and wherein the control means includes: The analog radio-controlled timepiece according to claim 1, wherein when the position of the hands is not detected within a predetermined range of time of the internal timepiece, a mismatch is displayed on the display means.
[0011]
According to the analog radio-controlled timepiece according to the second aspect, the fact that the hands are shifted from the internal timepiece is detected and the user is notified.
[0012]
According to the third aspect of the present invention, in the analog radio-controlled timepiece according to the first or second aspect, the control means responds to an output from the position detection means within a predetermined time range of the internal clock. The means for detecting the amount of deviation of the position of the pointer, and the operation of correcting the step pulse for driving the driving step motor of the pointer according to the deviation when the pointer is ahead of the internal clock. Output means for stopping the output and, when the pointer is behind the internal clock, correcting the position of the pointer by adding and outputting a step pulse corresponding to the deviation amount. An analog radio-controlled timepiece is provided.
[0013]
According to the analog radio-controlled timepiece according to the third aspect, the amount of deviation between the time of the internal clock and the display time of the hands is detected, and when the amount of deviation is detected, the amount of deviation of the hands is corrected. Therefore, the output of the drive step pulse of the step motor is stopped or added. Therefore, the pointer can be corrected without having a complicated correction mechanism for correction.
[0014]
According to the fourth aspect of the present invention, in the analog type radio-controlled timepiece according to the second or third aspect, the coincidence / mismatch display means indicates success or failure of reception of the standard time radio wave, and indicates whether or not the reception is the same. An analog radio-controlled timepiece according to claim 3, wherein a mismatch is displayed in the case of failure.
[0015]
According to the analog radio-controlled timepiece according to the fourth aspect, the display of the success or failure of reception of the standard time radio wave and the indication of the match / mismatch with the internal clock of the hands are shared. By displaying the mismatch, the user can be notified that the pointer is not accurate.
[0016]
According to a fifth aspect of the present invention, in the analog radio-controlled timepiece according to any one of the first to fourth aspects, there are a plurality of the position detecting means, and the position detecting means is provided in accordance with an output of one position detecting means during normal hand movement. An analog radio-controlled timepiece is provided in which after performing an operation of correcting the hands based on the time of an internal clock, another position detecting means detects whether or not the hands are corrected. .
[0017]
According to the analog type radio-controlled timepiece according to the fifth aspect, after the correction operation during the movement of the hands, it is possible to confirm by the next position detection means whether or not the hands are surely corrected by the previous correction operation. This allows the user to confirm the correct display time on the analog radio-controlled timepiece.
[0018]
According to the present invention as set forth in claim 6, a step of attempting to receive the standard time radio wave and displaying the success or failure of the reception, and, if the reception is successful, adjusting the display time by the internal clock and the hands. And a step of detecting whether there is a difference between the internal clock and the time displayed by the hands during normal hand movement, and a step of displaying a reception failure when the difference is detected. A method for displaying an analog radio-controlled timepiece is provided.
[0019]
According to the method described in claim 6, a difference between the time of the internal clock and the display time of the hands is detected, and if a difference is detected, the result is obtained even when the receiving circuit succeeds in receiving thereafter. Means for displaying the reception failure result, the user sees the reception failure display and is warned, and as a result, the display time that is shifted from the time of the internal clock by the user matches the standard time. It will not be misunderstood as time. Then, the user can perform a reset operation, battery replacement, and the like necessary for eliminating a difference in display time for the analog radio-controlled timepiece.
[0020]
According to the present invention described in claim 7, the step of detecting whether there is a shift includes the sub-step of detecting a shift amount that can be corrected and an uncorrectable shift amount, and the step of detecting a shift amount that can be corrected. And a sub-step of performing an operation of correcting the deviation amount of the pointer and displaying a successful reception, and performing a step of displaying the reception failure when an uncorrectable deviation amount is detected. A method for displaying an analog radio-controlled timepiece according to claim 6 is provided.
[0021]
According to the method described in claim 7, when a shift amount that can be corrected is detected, the shift amount of the pointer is corrected, and when a shift amount that cannot be corrected is detected, the standard time radio wave is thereafter received. Even if successful, the result of reception failure is displayed. As a result, if the operation of correcting the shift amount was performed, the success of the reception of the standard time radio wave is displayed as it was, assuming that the display time was similarly corrected by adjusting the time of the internal clock, and the shift amount could be corrected. If there is no such time, there is no danger that the user may receive a warning while seeing the display of the reception failure and misunderstand that the display time having a deviation is a time that matches the standard time. Then, the user can perform a reset operation, battery replacement, and the like necessary for eliminating a difference in display time for the analog radio-controlled timepiece.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a main part of an analog radio-controlled timepiece according to one embodiment of the present invention.
[0023]
The analog radio-controlled timepiece of the present embodiment shown in FIG. 1 centrally controls a time code signal of a standard time radio wave transmitted from a transmitting station (not shown) at a specific time via a receiving antenna F and a receiving circuit G. It is received by the device (CPU) A. When the standard time code can be received via the receiving circuit G, the central control unit A displays the display lamp L such as an LED indicating the success or failure of reception in green indicating success, and the standard time code could not be received. In this case, the indicator L is displayed in red indicating failure. The specific time at which the standard time radio wave is received may be a time at which the internal time of the internal clock A-2 becomes 2:00 am every day, or the like. The signal received by the receiving circuit G is supplied to the internal electronic timepiece A-2 from the control unit A-1 which is the determination means in the central control unit (CPU) A. Based on this time code signal, the time correction operation of correcting the internal time of the internal clock A-2 and driving the wheel train C to correct the display time indicated by the hands B (shown in FIG. 3) of the analog clock. Do.
[0024]
The wheel train C (shown in FIG. 2) of the timepiece mechanical body that drives the hands B of the analog timepiece is provided with a position detection mechanism D that detects that the hands B are not in a predetermined position. As will be described in detail later, when a normal hand operation is performed, if the internal time of the internal clock A-2 is a predetermined time (for example, 12:00 am and 12:00 pm), the pointer B displays 12:00 am and 12:00 pm When the internal time of the internal electronic timepiece A-2 is 12:00 am, it is determined whether or not the pointer B is at the predetermined position of 12:00 am. The control unit A-1 determines whether or not the pointer B is at the position of 12:00 pm at 12:00 using the position detection mechanism D. If the hand B does not pass through the predetermined position of the position detecting mechanism D within the predetermined time, it is determined that the hand B cannot be corrected to a position that matches the internal time, and the current time of the internal clock and the display time of the hand are changed. In order to warn the user that they do not match, the display of the indicator lamp L is set as a failure display of the reception success / failure result. That is, the display of the indicator light L is red.
[0025]
This failure display of the indicator L is performed after this even if the receiving circuit G succeeds in receiving the standard time radio wave and the control unit A-1 corrects the internal time of the internal clock A-2 based on the standard time code. Even if the pointer B is moved so as to be corrected according to the correction amount, the time of the internal clock does not match the displayed time of the pointer B, so that the operation is continued. The reset operation of the control unit can be performed by the user pressing a reset button of an analog radio-controlled timepiece (not shown) or replacing the power supply E. In this case, as will be described in detail later, the control unit A-1 uses the train wheel C and the position detection mechanism D to receive the standard radio wave and to adjust the internal time of the internal clock A-2 corrected by the standard time code. The display time of the hand B is matched with the time to eliminate the difference between the two times, and the display of the indicator L is changed to green indicating successful reception.
[0026]
Next, a method of detecting whether or not the display time indicated by the pointer B detected by the position detection mechanism D and the internal time of the internal electronic timepiece A-2 match will be described in detail with reference to FIG. FIG. 2 is a cross-sectional view of the main part of the wheel train C of the analog timepiece mechanical body, in which the second hand performs sweep hand movement and the hour and minute hands perform 10-second step movement. Between the lower case 10 and the middle case 11, there is provided an hour and minute wheel drive train that is rotationally driven by a first 10-second step drive motor 1 that operates by receiving power from a power supply E (shown in FIG. 1). It is. That is, the rotor 1, the drive wheel 2, the intermediate wheel 3, the minute hand wheel 4, the minute wheel 5 and the hour wheel 6 of the motor are rotatably supported on the respective shafts, and are sequentially meshed to form a reduction gear train. Further, between the middle case 11 and the upper case 12, there is provided a second hand wheel drive wheel train that is rotationally driven by a second sweep drive motor (not shown). That is, a second wheel, third wheel 7 and second hand wheel 8 (not shown) that mesh with the motor gear are rotatably supported on the shaft, and sequentially mesh with each other to form a reduction gear train. The minute hand wheel 4, the hour hand wheel 6, and the second hand wheel 8 are rotatably fitted to a pipe 11 b provided integrally with the middle case 11, and the minute hand shown in FIG. A so-called middle three-hand type analog timepiece, in which a hand B composed of an hour hand and a second hand is attached, and the hand B rotates concentrically, is configured.
[0027]
The position detecting mechanism D of the wheel train C (that is, the pointer B) will be described. The third wheel 7 has a small through hole 7a for position detection, and a positioning hole 7b for assembling a train wheel at a position smaller in diameter than the through hole 7a, at a short distance from the center of rotation, and 180 degrees away from the through hole 7a. Is formed.
[0028]
As shown in FIG. 4, the second hand wheel 8 is provided with a through hole 8a for position detection and a reflecting portion 8b formed of a reflecting plate at a position 180 degrees apart on the same circumference. Also, two through holes 8c, 8d, 8e, 8f are opened at two intervals of 60 degrees on both sides of the through hole 8a. The intermediate wheel 3 has three through holes 3a on the same circumference at 120 ° intervals, and the minute hand wheel 4 has three through holes 4a at 120 ° intervals on the circumference of the same radius as the through hole 8a. I have. The hour wheel 6 has seven through-holes 6a formed on a circumference having the same radius as the through-hole 8a. Since there are eight reference times as described later, eight through-holes 6a are required. However, since two through-holes are connected, seven through-holes 6a may be provided. The middle case 11 is formed with a through hole 11a vertically aligned with the through holes 7a, 8a, 3a, 4a, 6a for position detection. The times when these through holes for position detection are aligned vertically are 12:00, 1:40, 3:00, 5:40, 6:00, 8:20, 9:00, and 11:00. There are eight times, and this is the reference time. The time intervals between adjacent reference times are all different. With these different time intervals, the controller A-1 can detect the absolute position of the pointer B at the time of reset.
[0029]
A light emitting diode 9 is fixed to the lower case 10 at a position facing the aligned holes 6a, and a substrate 13 disposed above the third wheel & pinion 7 has a light emitting diode 9 fixed thereto. A reflection type sensor 14 having a light emitting element and a light receiving element is fixed at a position facing the aligned through holes 7a.
[0030]
Initial position detection of the pointer B at the time of resetting or the like is performed by first detecting the position of the second hand by the reflection plate 8b of the second hand wheel 8 and the reflection type sensor 14, and moving the second hand B to the position of 0 second when the position detection is completed. stop. At the position of 0 second, the through hole 7a of the third wheel & pinion 7 and the through hole 8a of the second hand wheel 8 are aligned vertically. Next, when the light emitting diode 9 emits light and the hour and minute hands are rotated, when the through holes 3a, 4a and 6a of the intermediate wheel 3, the minute wheel 4 and the hour wheel 6 overlap, the light of the light emitting diode 9 is transmitted to the reflection type sensor 14. reach. Since this position is any of the above eight reference times, when the hour and minute hands continue to rotate and the through holes overlap again to reach a position where light reaches the reflective sensor 14, the through holes match at first. By checking the time interval with the hour, the position when the through holes overlap for the second time is determined. With this, it is possible to recognize the position of all the hour, minute, and second hands, and the initial absolute position detection of the pointer B ends at the time of reset.
[0031]
Next, referring to FIG. 5 in conjunction with FIG. 2, at the time of normal hand operation of the analog radio-controlled timepiece according to the embodiment of the present invention, the position of the displayed time is detected by the hands B relative to the internal time of the internal clock A-2. The method of performing twice at 12:00 am and 12:00 pm will be described. First, when the internal time of the internal electronic timepiece A-2 is 20 seconds before the predetermined time (12:00 am and 12:00 pm) (that is, 11:59:40 am or 11:59 pm) At 40 seconds), the light emitting diode 9 is turned on to start the method of the present embodiment. Then, the input of the reflection type sensor 14 is confirmed (S1).
[0032]
The light emitted from the light-emitting diode 9 just before the internal electronic timepiece A-2 at a predetermined time (12:00 am and 12:00 pm) at an hour (between 12:00:00 and 12:00:09) is straightened. If it can be detected by the reflection type sensor 14 through all the through holes 6a, 4a, 3a, 11a, 8a, 7a aligned with the display time indicated by the hand B composed of the hour hand, minute hand and second hand, and the internal electronic timepiece A-2 Is determined by the control unit A-1 to be in a normal state (S4). Therefore, the display lamp L indicating the reception result display is set to a green display indicating successful reception (S7).
[0033]
However, if the control unit A-1 detects light 1 second to 10 seconds before the internal time of the internal clock (11:59:50 to 11:59:59), the hand B indicates 10 seconds. It is determined that it is proceeding (S3). Therefore, the transmission of the drive pulse to the 10-second step drive motor 1 is stopped by one pulse (S8). After that, the display lamp L indicating the reception result display is set to a green display indicating successful reception (S7).
[0034]
When the control unit A-1 detects light 11 seconds to 20 seconds before the internal time of the internal clock (11:59:40 to 11:59:49), the hand B advances by 20 seconds. It is determined that there is (S2). Therefore, the transmission of the drive pulse to the 10-second step drive motor 1 is stopped by two pulses (S9). After that, the display lamp L indicating the reception result display is set to a green display indicating successful reception (S7).
[0035]
Conversely, if the control unit A-1 detects light 10 seconds to 19 seconds after the hour of the internal time of the internal clock (12:00:10 to 12:00:19), the pointer B indicates 10 It is determined that there is a second delay (S5). Therefore, one drive pulse to the 10-second step drive motor 1 is added (S10). After that, the display lamp L indicating the reception result display is set to a green display indicating successful reception (S7).
[0036]
When light is detected after 20 seconds to 29 seconds (12:00:20 to 12:00:29), it is determined that the pointer B is delayed by 20 seconds, and the pointer B is supplied to the step-drive motor 1 for 10 seconds. Two drive pulses are added (S6). After that, the display lamp L indicating the reception result display is set to a green display indicating successful reception (S7).
[0037]
If the light is not detected by the reflective sensor 14 even after 30 seconds have passed since the hour (S11), the deviation of the pointer B with respect to the internal time of the internal clock exceeds ± 20 seconds. It is determined that the correction is not possible during the operation of the hand, and the indicator L indicating the reception result display is displayed in red indicating the reception failure (S12).
[0038]
As described above, when the amount of deviation (± 10 seconds or ± 20 seconds) of the pointer B with respect to the internal time of the internal clock can be determined, the operation of correcting the pointer position so that the pointer B matches the internal electronic clock is performed. If no light can be detected by the reflective sensor 14 within ± 20 seconds, the time of the internal electronic timepiece A-2 does not match the display time indicated by the pointer B, and correction cannot be performed. The control unit A-1 determines that they do not match. Then, the indicator L is displayed in red indicating that the reception has failed.
[0039]
The red display of the reception failure of the indicator light L may be performed by the user pressing the reset button of the analog radio-controlled timepiece (not shown) or by turning on the power supply as described above and as described in detail below with reference to FIG. By exchanging E, the control unit A-1 uses the wheel train C and the position detecting mechanism D to receive the standard radio wave and correct the internal clock A- In the case where a reset operation is performed to match the display time of the hands B with the internal time of No. 2 to eliminate the difference between the two times, the display of the indicator light L can be changed to green indicating successful reception.
[0040]
Referring to FIG. 6 in conjunction with FIG. 1, in the analog radio-controlled timepiece, when the internal clock A-2 reaches a predetermined time (for example, 2:00 am), the control unit A-1 turns on the receiving circuit G and turns on the antenna F. The control circuit A-1 obtains a standard time code from the control circuit A-1 and corrects the internal time of the internal clock A-2 and the display time of the hands B based on the standard time code. At this time, in the analog radio-controlled timepiece according to the present embodiment, the control unit A-1 determines whether or not the reception circuit G has successfully received the standard time radio wave after the start of the reception (S21). In this determination, if the reception of the standard time radio wave fails, the indicator L is turned red. The user is warned that the internal time and the displayed time of the hands B are no longer corrected based on the standard time (S22). If the standard time radio wave is successfully received, it is determined by the method shown in FIG. 5 whether or not the position of the hand B with respect to the internal time of the internal clock A-2 has been confirmed in the immediately preceding inspection (S23). If the position cannot be confirmed, the indicator L is displayed in red. Thus, the user knows that the internal time does not match the display time of the hands B, and that the display time of the hands B is not corrected based on the standard time (S22). If the position of the pointer B with respect to the internal time of the internal clock A-2 can be confirmed in the immediately preceding inspection, the reception is successful, and the display time of the pointer B indicates that the corrective operation has been performed based on the standard time. Therefore, the display of the indicator light L is set to green (S24).
[0041]
In the method according to the embodiment described with reference to FIG. 5, the position of the pointer B is set to 20 seconds before and after a predetermined time, and a correction operation is performed if a shift amount of 20 seconds before and after or 10 seconds before and after can be determined. Alternatively, the position may be detected only at a specific time (for example, both or one of the hours of 12:00 am and 12:00 pm), and if the position cannot be detected at that time, it may be determined that there is a mismatch.
[0042]
There is an exception in the description of FIGS. 2 and 5 to be precise, and there are eight positions that are determined to be coincident as described above. Since it is unlikely that the vehicle is late or just 100 minutes ahead, there is no problem in the daily position detection performed at 12:00.
[0043]
The size of the through hole 7a of the third wheel & pinion 7 described in FIG. 2 and the size of the through hole 8a in FIG. 4 of the second hand wheel 8 are adjusted so as to cross the optical path in about one second. For this reason, when the time of the internal electronic timepiece A-2 and the time pointed by the hands B match, all the through holes 6a, 4a, 3a, 11a, 8a, 7a are set to about 12:00 at 12:00. The light passes from the light-emitting diode 9 during this time, so that the reflection sensor 14 can reliably detect the passage of light.
[0044]
In the present embodiment, as an example of the display of the reception result, the indication lamp L is a two-color LED, and when the reception is successful, the user is informed by lighting green, and when the reception is failed, the user is notified by lighting red, but the present invention is not limited to this. The result of the reception success or failure can be displayed by various methods and color display. It is also possible to display the reception result and the result of the position detection of the pointer as separate displays, or to provide a means for notifying the user, such as a method of moving the pointer, which does not rely on the LED. Furthermore, instead of always displaying the display method, it is also possible to arrange a display switch, for example, when a user's instruction is given, and to display only when the display switch is turned on.
[0045]
Once the reception success or failure result display is determined to be unsuccessful due to the inability to detect the position of the pointer B, even if the reception succeeds thereafter, the reception failure is always displayed in red. However, when the position can be detected by the subsequent periodic position detection operation of the pointer B, or when the user performs the reset operation by pressing the reset button or replacing the battery, the success or failure of the reception and the possibility of the position detection of the pointer are determined. As a result, the indicator light changes to blue for success indication or red for failure indication.
[0046]
The correction of the time by radio waves is normally performed every 24 hours, and the internal clock is used to determine whether the time is in the morning or afternoon, for example, at 2:00 am. However, if reception cannot be performed properly at 2:00 am, the reception is performed at 5:00 am, 2:00 pm, or 5:00 pm.
[0047]
The time when the position detection mechanism D is activated is set to 12:00 in the internal electronic clock A-2 as described above, but usually, the internal clock A-2 discriminates between morning and afternoon, and 24 hours only at 12:00 pm It may be every time. However, in order to further improve the accuracy, the setting may be performed eight times at each of the reference times.
[0048]
In the present embodiment described with reference to FIG. 2, the position detection mechanism D is configured to detect using the through holes provided in the gears constituting the wheel train C. However, the present invention is not limited to this. Separately, a mechanism that can determine whether the pointer B is at a predetermined position or a deviation detection mechanism may be provided. In this case, the detection time is not limited to the reference time, and the detection time can be set at an arbitrary time.
Further, according to the present embodiment, the confirmation of the operation of correcting the pointer after outputting the pulse for correcting the pointer is the next position detection. However, for example, by providing the position detecting means for performing the next position detection several minutes after the position detection, the correction operation of the pointer can be confirmed, and if the correction is insufficient, the correction operation is performed again. be able to.
[0049]
【The invention's effect】
According to the present invention, when the display time cannot be accurately displayed due to the deviation of the hands from the internal clock, the reception success / failure result display is not regarded as a success display, so that the user may erroneously recognize that the display time is correct. Disappears. Then, it is possible to promote an appropriate operation for canceling the deviation of the hands from the internal clock by pressing the reset button or replacing the battery.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a main part of an analog radio-controlled timepiece according to one embodiment of the present invention.
FIG. 2 is a schematic sectional view showing a wheel train of the analog radio-controlled timepiece according to one embodiment of the present invention.
FIG. 3 is a front view showing the hands and indicators of the analog radio-controlled timepiece according to one embodiment of the present invention.
FIG. 4 is a front view showing a through hole and a reflection portion provided in a second hand wheel for detecting a second hand position of the analog radio-controlled timepiece according to one embodiment of the present invention.
FIG. 5 is a flowchart showing a display method of the analog radio-controlled timepiece according to one embodiment of the present invention.
FIG. 6 is a flowchart showing a display method of the analog radio-controlled timepiece according to one embodiment of the present invention.
[Explanation of symbols]
8 Second hand wheel
8a, 8c, 8d, 8e, 8f Through-hole
8b Reflector
9 Light emitting diode
14 Reflection type sensor
A-1 control unit
A-2 Internal clock
B Guidelines
C wheel train
D Position detection mechanism
L indicator light

Claims (7)

内部時計の特定時刻に標準時刻電波を受信し、当該標準時刻電波の時刻コード信号に基づいて前記内部時計の時刻と指針の示す時刻とを修正する時刻修正動作を行うアナログ式電波修正時計において、
所定位置において上記指針の位置検出を行う位置検出手段と、
通常運針中に上記位置検出手段の出力に応じた上記内部時計の時刻に基づいて上記指針の位置を修正する動作を行う制御手段を有することを特徴とするアナログ式電波修正時計。
An analog radio-controlled timepiece that receives a standard time radio wave at a specific time of the internal clock and performs a time correction operation of correcting the time of the internal clock and the time indicated by the hands based on the time code signal of the standard time radio wave,
Position detection means for detecting the position of the pointer at a predetermined position,
An analog radio-controlled timepiece having control means for performing an operation of correcting the position of the hands based on the time of the internal clock according to the output of the position detection means during normal hand movement.
請求項1記載のアナログ式電波修正時計において、
上記内部時計の時刻と上記指針の位置の一致・不一致の表示手段を有し、
前記制御手段は、上記内部時計の所定範囲時間において上記指針の位置検出ができなかった場合は、上記表示手段において不一致の表示を行うことを特徴とするアナログ式電波修正時計。
The analog radio-controlled timepiece according to claim 1,
Display means for indicating whether the time of the internal clock matches the position of the hands,
An analog radio-controlled timepiece according to claim 1, wherein said control means displays a non-coincidence on said display means when the position of said hands cannot be detected within a predetermined range time of said internal timepiece.
請求項1又は2記載のアナログ式電波修正時計において、
上記制御手段は、
上記内部時計の所定時間範囲内における上記位置検出手段からの出力に応じて上記指針の位置のずれ量を検出する手段と、
上記修正する動作として、上記指針が上記内部時計より進んでいる場合は、該ずれ量に応じて上記指針の駆動ステップモータを駆動するステップパルスの出力を停止し、上記指針が上記内部時計より遅れている場合は、該ずれ量に応じたステップパルスを追加して出力することで上記指針の位置を修正する動作を行う修正手段とを有することを特徴とするアナログ式電波修正時計。
The analog radio-controlled timepiece according to claim 1 or 2,
The control means includes:
Means for detecting a shift amount of the position of the hands in accordance with an output from the position detecting means within a predetermined time range of the internal clock;
As the correcting operation, when the pointer is ahead of the internal clock, the output of the step pulse for driving the driving step motor of the pointer is stopped according to the deviation amount, and the pointer is delayed from the internal clock. A correction means for performing an operation of correcting the position of the hands by adding and outputting a step pulse corresponding to the shift amount.
請求項2又は3記載のアナログ式電波修正時計において、
上記一致・不一致の表示手段は上記標準時刻電波の受信の成功又は失敗を表示し、不一致あるいは失敗の場合は不一致の表示を行うことを特徴とするアナログ式電波修正時計。
The analog radio-controlled timepiece according to claim 2 or 3,
An analog radio-controlled timepiece according to claim 1, wherein said coincidence / non-coincidence display means displays the success or failure of reception of said standard time radio wave, and displays a non-coincidence in case of inconsistency or failure.
請求項1乃至4のいずれかに記載のアナログ式電波修正時計において、
上記位置検出手段は複数あり、
通常運針中に一の位置検出手段の出力に応じて上記内部時計の時刻に基づいて上記指針を修正する動作を行った後、他の位置検出手段により上記指針が修正されているか否かを検出することを特徴とするアナログ式電波修正時計。
An analog radio-controlled timepiece according to any one of claims 1 to 4,
There are a plurality of the position detecting means,
After performing the operation of correcting the pointer based on the time of the internal clock according to the output of one position detecting means during normal hand movement, it is detected whether or not the pointer is corrected by another position detecting means. An analog radio-controlled watch characterized by the following:
標準時刻電波の受信を試みてその受信の成功又は失敗を表示するステップと、受信に成功した場合は内部時計と指針による表示時刻の時刻修正をするステップと、通常運針中に上記内部時計と上記指針による表示時刻との間にずれがあるかどうかを検出するステップと、ずれがあると検出した場合は受信失敗の表示をするステップとを含むことを特徴とするアナログ式電波修正時計の表示方法。Attempting to receive the standard time radio wave and displaying the success or failure of the reception, and, if the reception is successful, correcting the time displayed by the internal clock and the hands. A method of displaying an analog radio-controlled timepiece, comprising: a step of detecting whether there is a difference between the time displayed by the hands and a step of displaying a reception failure when the time is detected to be different. . 上記ずれがあるかどうかを検出するステップは、補正可能なずれ量と補正不可能なずれ量を検出するサブステップと、補正可能なずれ量を検出した場合は上記指針のずれ量を補正する動作を行い受信成功の表示をするサブステップとを含み、補正不可能なずれ量を検出した場合は上記受信失敗の表示をするステップを行なうことを特徴とする請求項6に記載のアナログ式電波修正時計の表示方法。The step of detecting whether or not there is a shift includes a sub-step of detecting a correctable shift amount and an uncorrectable shift amount, and an operation of correcting the shift amount of the pointer when the correctable shift amount is detected. 7. The analog radio wave correction according to claim 6, further comprising the sub-step of performing a reception success display and performing a step of displaying said reception failure when an uncorrectable deviation amount is detected. How to display the clock.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147570A (en) * 2005-11-30 2007-06-14 Rhythm Watch Co Ltd Timepiece
JP2010190714A (en) * 2009-02-18 2010-09-02 Casio Computer Co Ltd Analog electronic clock
KR101286764B1 (en) * 2011-11-25 2013-08-23 주식회사 후크앤타임 Analog slave clock with automatic time setup and correction in time synchronizing system and control method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002071847A (en) * 2000-08-31 2002-03-12 Rhythm Watch Co Ltd Automatic correction clock
JP2002257956A (en) * 2001-03-06 2002-09-11 Seiko Clock Inc Analog radio-correctable clock
JP2002357678A (en) * 2001-05-31 2002-12-13 Rhythm Watch Co Ltd Automatic correcting timepiece

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002071847A (en) * 2000-08-31 2002-03-12 Rhythm Watch Co Ltd Automatic correction clock
JP2002257956A (en) * 2001-03-06 2002-09-11 Seiko Clock Inc Analog radio-correctable clock
JP2002357678A (en) * 2001-05-31 2002-12-13 Rhythm Watch Co Ltd Automatic correcting timepiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147570A (en) * 2005-11-30 2007-06-14 Rhythm Watch Co Ltd Timepiece
JP2010190714A (en) * 2009-02-18 2010-09-02 Casio Computer Co Ltd Analog electronic clock
KR101286764B1 (en) * 2011-11-25 2013-08-23 주식회사 후크앤타임 Analog slave clock with automatic time setup and correction in time synchronizing system and control method thereof

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