JP4120300B2 - Information processing equipment for diving - Google Patents

Description

ここで、ｋは実験的に求められる定数である。
【００３７】
次に、比較手段６６により、呼吸気窒素分圧記憶手段６３の結果であるＰＩＮ_２ （ｔ）と体内窒素分圧手段５の結果であるＰＧＴ（ｔ）を比較し、その結果、半飽和時間選択手段６７によって、体内窒素分圧計算手段６４で用いられる半飽和時間Ｔ_Ｈ を可変とする。
【００３８】
たとえば、ｔ＝ｔ_０ 時の呼吸気窒素分圧ＰＩＮ_２ （ｔ_０ ）、体内窒素分圧ＰＧＴ（ｔ_０ ）が、それぞれ呼吸気窒素分圧記憶手段６３と体内窒素分圧記憶手段６５に記憶されているとすると、比較手段６６はこのＰＩＮ_２ （ｔ_０）とＰＧＴ（ｔ_０ ）を比較する。
【００３９】
そして、体内窒素分圧計算手段６４は、半飽和時間選択手段６７により、次のように制御され、ｔ＝ｔ_Ｅ の時の体内窒素分圧ＰＧＴ（ｔ_Ｅ ）が計算される。
【００４０】
【数２】

【数３】

上記２式では、ｋは定数、Ｔ_Ｈ２＜Ｔ_Ｈ１と計算される。
【００４１】
なお、ＰＧＴ（ｔ_０ ）＝ＰＩＮ_２ （ｔ_０ ）のときは、半飽和時間Ｔ_Ｈ＝（Ｔ_Ｈ２＋Ｔ_Ｈ１）／２として計算するのが好ましい。また、これらの時間（ｔ_０やｔ_Ｅ についての計測）は、図２の計時手段６８によって管理される。
【００４２】
ここで、ＰＧＴ（ｔ_０ ）＞ＰＩＮ_２ （ｔ_０ ）のときは、体内から窒素が排出される場合であり、ＰＧＴ（ｔ_０ ）＜ＰＩＮ_２ （ｔ_０ ）のときは、体内へ窒素が吸収される場合である。これらの時に半飽和時間を可変するということは、窒素が排出される場合は、半飽和時間が長く、排出に時間がかかることを意味し、逆に窒素が吸収される場合は半飽和時間が短く、吸収にかかる時間は排出にかかる時間と比較すると短いことになる。このようにすれば、体内窒素量のシミュレーションをより厳密に行うことができる。従って、体内窒素分圧の許容値を設定しておけば、ある水深（水圧）でこの許容値に到達するまでの時間（無減圧潜水可能時間／安全情報）、および水面上で体内窒素分圧が平衡値にまで低下するまでの時間（体内窒素排出時間／安全情報）を精度よく求めることができる。このようにして本形態のダイビング用情報処理装置１には、無減圧潜水可能時間および体内窒素排出時間をダイバーの安全情報として導出する潜水可能時間導出手段９２および体内窒素排出時間導出手段９１が構成されている。
【００４３】
［ダイビングの開始・終了を判定するための構成］ダイビング用情報処理装置１は、ダイビング中、水深の計測、水温の計測、潜水時間の計測、潜水中に体内に蓄積される体内窒素蓄積量の計測、ダイバーの浮上速度の計測などが行われ、これらの計測結果に基づいて、表示や警告などが行われる。また、ダイビング終了時には、これらの計測結果や警告の有無などの潜水情報がログデータとして記録され、後述するログモードで再生されるように構成されている。これらの潜水情報の記録動作は、図２に示す計時手段６８、水深計測手段６１、入水監視スイッチ３０、および制御部５０の機能（ＣＰＵ５１、ＲＯＭ５３、ＲＡＭ５４などの機能）の一部を使用して行われる。
【００４４】
すなわち、図５に示すように、ダイビング用情報処理装置１では、図２に示す水深計測手段６１、計時手段６８、および入水監視スイッチ３０の出力はいずれも制御部５０に入力され、この制御部５０には、潜水開始・終了判定手段８１と、ＲＡＭ５４をメモリとして利用する潜水情報記録手段８５とが構成されている。これらの構成を、図６も参照しながら以下に詳述する。
【００４５】
潜水開始・終了判定手段８１は、時刻Ｔ１１にダイバーが水中に入ったことを入水監視スイッチ３０が検知した以降、時刻Ｔ１２に潜水開始判定用水深値８２として設定されている１．５ｍの水深値よりも深く潜ったときにダイビングが開始されたものと判定する。その結果、潜水時間の計測などが開始される。このようにして計測される潜水時間、平均水深、潜水開始時刻、潜水中の体内窒素量、最大水深、潜水時間、最大水深時の水温、さらには潜水日時、高所ランクなどの潜水情報は、潜水情報記録手段８５において、必要に応じてダイビングの途中で更新されながらＲＡＭ５４に構成されている一時記録領域８６（一時記録部）に記録されていく。
【００４６】
また、潜水開始・終了判定手段８１は、ダイビングを開始した以降、水深計測手段６１の計測結果および計時手段６８の計測結果に基づいて、時刻Ｔ１３に潜水終了判定用水深値８３として設定されている１．５ｍの水深値よりも浅い位置にダイバーが浮上しても、潜水終了判定用時間８４として設定されている１０分間が経過しなれば１回のダイビングが終了したものとして判断しない。このため、潜水開始・終了判定手段８１は、時刻Ｔ１３に１．５ｍの水深値（潜水終了判定用水深値８２）よりも浅い位置にダイバーが浮上しても、１０分（潜水終了判定用時間８４）が経過する前に再び、時刻Ｔ１４に１．５ｍの水深値（潜水終了判定用水深値８２）よりも深い位置まで潜ったときには１回のダイビングが継続しているものと判断する。
【００４７】
すなわち、潜水開始・終了判定手段８１は、時刻Ｔ１５に１．５ｍの水深値（潜水終了判定用水深値８３）よりも浅い位置にダイバーが浮上し、かつ、時刻Ｔ１６に１０分（潜水終了判定用時間８４）が経過したときにはじめてダイビングが終了したものと判断する。そして、潜水情報記録手段８５は、今回のダイビングで最初に潜水開始判定用水深値８２より深い位置に潜水した時点（時刻Ｔ１２）から潜水終了判定用水深値８３より浅い位置に最後に浮上した時点（時刻Ｔ１５）までの一時記録部８６に記録されている潜水情報をダイビング１回分のログデータとして確定し、ＲＡＭ５４に構成されているログデータ記録領域８７にログナンバーを付して記録していく。従って、ログデータ記録領域８７に記録されているログデータを用いれば、図６に示すようなダイビングであっても、時刻Ｔ１２（ダイビング開始時点）から時刻Ｔ１５（ダイビング終了時点）までのダイビングを１回のダイビングとして、そのときの潜水情報を後で表示部１０の液晶表示パネル１１に表示、再生することができる。
【００４８】
ここで、ダイビング中は、液晶表示パネル１１において現在水深、潜水時間、最大水深、無減圧潜水可能時間、体内窒素グラフ、高度ランクなど、ダイビングに必要な潜水情報が表示されるが、本形態では、１．５ｍの水深値（潜水終了判定用水深値８３）よりも浅い位置にダイバーが浮上し、それから１０分（潜水終了判定用時間８４）が経過するまでの間も、液晶表示パネル１１において前記の潜水情報が表示され続ける。前述のように、時刻Ｔ１３に１．５ｍの水深値（潜水終了判定用水深値８２）よりも浅い位置にダイバーが浮上しても、１０分（潜水終了判定用時間８４）が経過する前に再び、時刻Ｔ１４に１．５ｍの水深値（潜水終了判定用水深値８２）よりも深い位置まで潜ったときには１回のダイビングが継続しているものと扱うからである。さらに、１．５ｍの水深値（潜水終了判定用水深値８３）よりも浅い位置にダイバーが浮上し、それから１０分（潜水終了判定用時間８４）が経過した後、ダイバーが水面上に上がって電極３１、３２が絶縁状態に戻るまでの間も、液晶表示パネル１１において前記の各情報が表示され続ける。すなわち、ダイバーが水中に入ったことを電極３１、３２が導通することによって入水監視スイッチ３０が検知してから、ダイバーが水面上に上がって入水監視スイッチ３０の電極３１、３２が絶縁状態に戻るまでの間は、ダイビングモードであるとして同一内容の情報が液晶表示パネル１１に表示され続ける。
【００４９】
また、本形態では、時刻Ｔ１５にダイバーが１．５ｍ（潜水終了判定用水深値８３）より浅い位置に最後に浮上してから時刻Ｔ１６に１０分間（潜水終了判定用時間８４）が経過するまでの間は、所定のスイッチ操作によって、一時記録部８６に記録されている潜水情報を表示部１０の液晶表示パネル１１で表示できるようになっている。それ故、今回のダイビングにおいて潜水情報がログデータとして確定する以前でも、今回のダイビングの潜水情報を再生、表示できるので、便利である。
【００５０】
このように、本形態のダイビング用情報処理装置１によれば、浅い位置まで浮上した後、再び深い位置まで潜った場合でも１回のダイビングと扱われ、誤って複数のダイビングとして扱われることがない。よって、潜水情報が細切れに記録、再生されるということがないなど、実情にあった形態で潜水情報を記録、再生することができる。しかも、素潜りのような不要な潜水情報がログデータ記録領域８７に記録されてしまうことを防ぐことができる。
【００５１】
ここで、ログデータ記録領域８７にログデータをたとえば最大１０回のダイビング分だけしか記録できないことから、それ以上潜水した場合には古いデータから順に自動的に削除される。このように構成しても、本形態では、浅い位置まで浮上した後、再び深い位置まで潜った場合でも、あくまで１回のダイビングと扱われるので、重要なログデータが不用意に更新、削除されることがない。
【００５２】
また、潜水開始・終了判定手段８１は、時刻Ｔ１１にダイバーが水中に入ったことを電極３１、３２が導通することによって入水監視スイッチ３０が検知した以降、時刻Ｔ１２に１．５ｍの水深値（潜水開始判定用水深値８２）よりも深く潜ってから時刻Ｔ１５に１．５ｍの水深値（潜水終了判定用水深値８３）よりも浅いところまで最後に浮上するまでの時間が、潜水判定用時間８８として予め設定されている３分以内であれば、すなわち、ダイビングが３分以上行われなかった場合には、素潜り程度のものであるとして、今回行ったダイビングの潜水情報は、ログデータとしてはログデータ記録領域８７に記録しない。このため、不要な潜水情報はログデータ記録領域８７に記録されないので、ログデータ記録領域８７にログデータを最大１０回のダイビング分だけしか記録できず、それ以上潜水した場合には古いデータから順に自動的に削除される場合でも、重要なログデータが不用意に更新、削除されることがない。
【００５３】
[誤動作時の潜水状態の解除機能構成]全体構成で前述したが、本形態のダイビング情報処理装置１では気圧計測手段６９により定期的に気圧を計測し、高度ランク判定手段９５により予め区分されているどの高度ランクに属するかを判定し、高度ランク比較手段９６により、前回気圧計測後に高度ランク記憶手段９７によってＲＡＭ５４に格納されている前回の高度ランクと比較して、変更があったときには体内窒素量の吸収／排出の演算を開始し、潜水終了後の休息時間に表示するサーフェスモードＳＴ２に遷移するように構成されている。
【００５４】
このような気圧変化の顕著な例として、たとえば、飛行機の搭乗中の高度変化があげられる。ここで、飛行機搭乗中などによる急激な気圧変化の状態と、本発明における誤動作の解除の構成について図１０及び図１１を用いて詳述する。
【００５５】
時刻Ｔ２１に気圧計測手段６９は気圧を計測し、高度ランクとして高度ランク記憶手段９７によりＲＡＭ５４に格納する。時刻Ｔ２２に入水監視スイッチ３０への濡れた手指などの接触などにより導通を検出し、水深計測手段６１により水深計測を開始する。その後、例えば１５００ｍ以上降下した場合、気圧値が高くなる。その差は、水圧にして１．５ｍ相当であり、時刻Ｔ２３には潜水開始終了判定手段８１によって１．５ｍ（潜水開始判定水深値７２）との比較により潜水中と判定される。時刻Ｔ２４に入水監視スイッチ３０の絶縁が検出されるが、時刻Ｔ２３以降、潜水中であると判定されているためダイブモードＳＴ５を継続し、水深計測手段６１による水深計測も行われている。
【００５６】
また、時刻Ｔ２４に入水監視スイッチ３０の電気導通状態が絶縁検出されたことにより、解除手段９３は水面休止時間計測手段８３によって、入水監視スイッチ３０の絶縁している時間を水面休止時間として計時を開始する。解除手段９３は所定時間ごとに水面休止時間と解除判定用時間９４（１０分間）とを比較し、それ以上経過している場合には、ダイブモードＳＴ５による潜水中の状態は誤動作であることを判断し、表示内容はサーフェスモードＳＴ２へ遷移し、表示パネルに表示される。すなわち、解除手段９３は入水監視スイッチ３０の導通検出したのち、潜水開始終了判定手段８１によって潜水中であると判定されていても、時刻Ｔ２５に入水監視スイッチ３０が継続して絶縁検出されている時間が解除判定用時間９４の１０分以上を経過して場合において水深計測及び潜水時間計測を停止し、サーフェスモード２の表示に遷移する。
【００５７】
さらに、誤動作を解除した旨を報音装置３７からのアラームおよび振動発生装置３８での振動によりダイバーへの報知を行う。また、表示部１０を発光体などにより発光させて報知してもよい。すなわち、誤認状態が確実に解除され、表示パネル１１に表示される情報が更新されたことをダイバーに確実に報知する。これらの動作により、ダイバーが飛行機から下りてから気がつくと表示が潜水状態のままで大気中の情報を確認できないということがなく、また身体にかかる圧力の変化を表示部にあらわし、ダイバーの体内不活性ガスが平衡状態になるまでの情報を表示することができるので便利である。
【００５８】
本形態では、解除判定用時間９４は潜水終了判定用時間８５と同様１０分間を適用し、制御部５０のＲＯＭ５３、ＣＰＵ５１の効率化を図っているが、さらに解除動作までの時間を、たとえば潜水判定用時間８８などのより短い時間をもちいるなど、時間カウンタの短いものを適用してもよい。
【００５９】
また、本形態のダイビング用情報処理装置１では、時刻Ｔ２３以降において装置本体に構成されている操作部５の各モードを選択するのとは異なる特定の操作である、ボタンスイッチＡとボタンスイッチＢを同時に押し、且つ同時押しの状態を所定時間以上継続することによって潜水状態を解除できるようにも構成されている。これにより、ダイバーが誤動作状態を確認し、その状態をすぐに解除したい場合には特定の操作を行い解除できるため、勝手がよい。さらに、製造工程において、たとえば気圧調整装置などによって低気圧化した環境での品質検査などの際に、誤動作の潜水状態になることがあり、その時には特定の操作によって潜水状態を解除できるようにも構成されているので、次工程へ効率よく流さなければならないため実用的である。なお、低気圧化した環境とは海抜０メートル地点における標準大気圧値よりも低い状態をさし、たとえば人間が通常生活を営める標高領域（概ね２０００メートルまで）における気圧値をいう。
【００６０】
また、本形態では解除手段９３により誤動作であることを判定し、大気中での表示であるサーフェスモードＳＴ２へ遷移する時刻Ｔ２５において、気圧計測手段６９により気圧を計測し、高度ランク判定手段９５により判定した高度ランクと、高度ランク比較手段９６により前回時刻Ｔ２１に計測し判定した前回高度ランクとを比較し、低い高度ランクへの変更があることが判定される。これにより高度の変化があったとして、単なる時刻表示状態ではなく、体内不活性ガスの吸収／排出演算中を示すサーフェスモードＳＴ２へ遷移する。
【００６１】
すなわち、誤動作中の表示パネル１１の表示情報は水中での表示状態ではあるが、その時の環境圧を常に計測し、その結果をもって体内の不活性ガスの吸収／排出演算は継続されており、誤動作解除後においても引き続き継続され、体内の不活性ガス量に変化があったことを示すサーフェスモードＳＴ２を表示するため、実際の体内で起きている状態をより厳密にシミュレーションし情報提供を行うことができる。その後の潜水の安全性をより高め、また通常状態に復帰した時の表示情報の信頼性を向上させることができる。
【００６２】
［浮上速度監視機能］ダイビング用情報処理装置１は、後述するダイビングモード中、ダイバーの浮上速度を監視するように構成され、この機能は、ＣＰＵ５１、ＲＯＭ５３、ＲＡＭ５４などの機能を利用して以下の構成として実現される。
【００６３】
すなわち、図５に示すように、ダイビング用情報処理装置１では、前記の計時手段６８の計測結果および水深計測手段６１の計測結果に基づいて浮上時の浮上速度を計測する浮上速度計測手段７５と、浮上速度計測手段７５の計測結果と予め設定されている浮上速度上限値７６とを比較して現在の浮上速度が浮上速度上限値７６より速い場合には浮上速度違反との警告を行う浮上速度違反警告手段７７とが構成されている。浮上速度計測手段７５は、図２に示したＣＰＵ５１、ＲＯＭ５３、ＲＡＭ５４の演算機能として実現される一方、浮上速度違反警告手段７７は、図２に示したＣＰＵ５１、ＲＯＭ５３、ＲＡＭ５４、報音装置３７、振動発生装置３８、液晶表示パネル１１での表示などの機能として実現される。
【００６４】
本形態において、浮上速度違反警告手段７７は、前記の浮上速度上限値７６としてＲＯＭ５３に格納されている水深範囲毎の浮上速度上限値と現在の浮上速度とを比較して、現在の浮上速度が現在水深に対応する浮上速度上限値７６より速い場合には液晶表示パネル１１での表示、報音装置３７からのアラーム音の発生、さらに振動発生装置３８からダイバーへの振動の伝達などの方法で浮上速度違反の警告を行い、浮上速度が浮上速度上限値７６より遅い状態に戻った時点で浮上速度違反の警告を停止する。本形態では、前記の浮上速度上限値７６として各水深範囲において以下に示す値
今回の水深計測値 浮上速度上限値
１．８ｍ未満 警告なし
１．８ｍ〜 ５．９ｍ ８ｍ／分（約０．８ｍ／６秒）
６．０ｍ〜１７．９ｍ １２ｍ／分（約１．２ｍ／６秒）
１８．０ｍ以上 １６ｍ／分（約１．６ｍ／６秒）
が設定されている。すなわち、水深が深いところでは、同じ浮上速度で浮上しても単位時間当たりの浮上前後の水圧比が小さいので、比較的大きな浮上速度を許容しても減圧症を十分に防止できるからである。これに対して、水深が浅いところでは、同じ浮上速度で浮上しても単位時間当たりの浮上前後の水圧比が大きいので、比較的小さな浮上速度しか許容しないようになっている。
【００６５】
本形態では、浮上速度上限値として６秒当たりの水深値がＲＯＭ５３に格納されている。これは、図７に示すように、水深の計測は１秒毎に行うが、ダイビング用情報処理装置１を装着した腕の動きが浮上速度に影響を及ぼすことを防ぐために、浮上速度計測の方は６秒毎に行っており、今回の水深計測値と６秒前の前回の水深計測値との差分を算出し、この差分を浮上速度として見做して上記の浮上速度上限値（ｍ／６秒）とを比較するからである。
【００６６】
また、本形態のダイビング用情報処理装置１には、潜水情報（ダイビングの日付、潜水時間、最大水深などの様々なデータ）をＲＡＭ５４のログデータ記録領域８７に記憶、保持しておく潜水情報記録手段８５が構成されているが、この潜水情報記録手段８５は、浮上速度違反警告手段７７から警告が発せられたか否かもログデータとしてログデータ記録領域８７に記録しておく。従って、今回のダイビング中に浮上速度違反があったか否かも、後に液晶表示パネル１１で再生、表示される。但し、潜水情報記録手段８５は、１回のダイビング中に連続して２回以上の警告を発したときのみ浮上速度違反があったとログデータとしてログデータ記録領域８７に記録する。従って、ダイバーの腕の動きによって浮上速度が誤って速く計測されてしまったような場合には、浮上速度違反があった旨はログデータとして記録されない。
【００６７】
また、本形態のダイビング用情報処理装置１では、水深が１．５ｍより深い状態が３分以上続いたときに初めてダイビングを行ったものとして扱うため、水深が１．５ｍより浅い位置まで浮上したときには、水深が０ｍと見做され、その表示はあくまで０ｍである。従って、このような浅い所でも深い所と同様に浮上速度違反警告手段７７が浮上速度違反警告を発すると、水深が１．５ｍよりわずかに深いところで数ｃｍの腕の動きがあって、水深が１．５ｍよりわずかでも浅く、０ｍと見做されると、浮上速度を守っているにもかかわらず、浮上速度違反警告が発せられることになる。その結果、ダイバーは浮上速度違反警告の信頼性に疑問を抱いてしまう。しかるに本形態では、現在水深が所定値（１．５ｍ）よりも浅いときには、浮上速度にかかわらず、浮上速度違反の警告を発しない。それ故、上記の不自然な警告が発せられることがないので、この警告への信頼感を高めることができる。すなわち、図７に示すように、たとえば、浮上中に前回計測した水深が１．８ｍで、この位置から実線Ｌ１１で示すように浮上して、６秒経過後に計測した現在の水深が１．５ｍ（潜水終了判定用水深値）以浅であれば、浮上速度違反との警告を発しない。
【００６８】
［水面休止時間の計測機能］このように、ダイビング中にはダイバーの体内には過剰な窒素が蓄積されるため、急速な浮上は、体内窒素が気泡となって減圧症の原因となる。同様に、ダイビングの終了後、体内に過剰な窒素が蓄積されている状態で飛行機に搭乗して高所に移動したときにも気圧が急激に低下するので、体内窒素が気泡となって減圧症を引き起こすことがある。従って、ダイビングの終了後は、２４時間、好ましくは４８時間が経過した後に飛行機に搭乗すべきである。そこで、図５に示すように、本形態のダイビング用情報処理装置１では、水深計測手段６１の計測結果および計時手段６８の計測結果に基づいて、ダイビングを終了してからの経過時間を水面休止時間として計測する水面休止時間計測手段８９が構成されている。すなわち、水面休止時間計測手段８９は、水深計測手段６１の計測結果および計時手段６８の計測結果に基づいて潜水開始・終了判定手段８１がダイビング終了と判断したときからの経過時間を水面休止時間として計測する。
【００６９】
従って、ダイビング終了後、水面休止時間計測手段８９によって求めた水面休止時間を液晶表示パネル１１に表示すれば、ダイバーに対して、十分な休止時間をとって体内から過剰な窒素が排出された後、飛行機に搭乗するように警告することができる。
【００７０】
［各モードの説明］このように構成したダイビング用情報処理装置１は、図８を参照して以下に説明する各モード（時刻モードＳＴ１、サーフェスモードＳＴ２、プランニングモードＳＴ３、設定モードＳＴ４、ダイビングモードＳＴ５、ログモードＳＴ６）で使用される。
【００７１】
（時刻モードＳＴ１）時刻モードＳＴ１は、スイッチ操作を行わず、かつ、体内窒素が平衡状態時、陸上で携帯するときの機能であり、液晶表示パネル１１には現在月日１００、現在時刻１０１、高度ランク１０３（図１を参照。／高度ランクがランク０の場合にはマークが表示されない。）が表示される。高度ランク１０３は、現在の場所の高度を自動的に計測し、３つのランクで表示するようになっている。現在時刻１０１はコロンが点滅することによって、この表示が現在時刻１０１である旨を知らせる。たとえば、図８に示す状態では、現在１２月５日の１０時０６分であると表示されている。
【００７２】
また、海抜の高い所、低い所を上下したときも気圧が変化するので、過去のダイビングの有無にかかわらず、体内への窒素の溶け込みや窒素の排出が起きる。そこで、本形態のダイビング用情報処理装置１では、時刻モードＳＴ１であってもこのような高度変化があったときには減圧計算を自動的に開始し、表示が変わる。すなわち、図示を省略するが、高度が変わってからの時間、体内窒素が平衡状態になるまでの時間、現在から平衡状態になるまで排出または溶け込む窒素量が表示される。
【００７３】
この時刻モードＳＴ１では、スイッチＡを押すとプランニングモードＳＴ３に直接、移行し、スイッチＢを押すとログモードＳＴ６に直接、移行する。また、スイッチＡを押した後、スイッチＡを押したままスイッチＢを５秒間押し続けると、設定モードＳＴ４に移行する。
【００７４】
この時刻モードＳＴ１の間に、図１、図２に示した入水監視スイッチ３０を介して入水したことを検出したときには自動的に機能チェックを行い、センサなどが正常であることが確認できれば、ダイビングモードＳＴ５に自動的に移行する。このときセンサなどに異常があったときには、その旨を図２に示した報音装置３７からのアラーム音などで報知する。
【００７５】
また、この時刻モードＳＴ１の間に、
（サーフェスモードＳＴ２）ダイビング用情報処理装置１は、ダイビングの終了後、導通していた入水監視スイッチ３０が絶縁状態になると自動的にサーフェスモードＳＴ２に移行する。このサーフェスモードＳＴ２は、前回のダイビングから４８時間経過するまで、陸上で携帯するときの機能である。このサーフェスモードＳＴ２では、時刻モードＳＴ１で表示するデータ（現在月日１００、現在時刻１０１、高度ランク）の他に、ダイビング終了後における体内窒素量の変化の目安などを表示する。すなわち、体内に溶け込んだ過剰な窒素が排出され、平衡状態になるまでの時間が体内窒素排出時間２０１として表示される。この体内窒素排出時間２０１は、平衡状態になるまでの時間をカウントダウンする。体内窒素排出時間２０１が０時間００分になった以降は、無表示となる。また、潜水後の経過時間が水面休止時間２０２として表示され、この水面休止時間２０２は、ダイビングモードＳＴ５において水深が１．５ｍよりも浅いところに最後に浮上した時点をダイビングの終了として計時が開始され、４８時間まで計測した後、無表示となる。従って、ダイビング用情報処理装置１において、ダイビング終了後、４８時間が経過するまでは陸上においてこのサーフェスモードＳＴ２となり、それ以降は時刻モードＳＴ１である。なお、図８に示す状態では、現在、１２月５日の１１時５８分であり、ダイビング終了後、１時間１３分経過していると表示されている。また、これまで行ったダイビングにより体内に溶け込んだ窒素量が体内窒素グラフ２０３の４個分に相当することが表示され、この状態から体内の過剰な窒素が排出されて平衡状態になるまでの時間（体内窒素排出時間２０１）が、たとえば１０時間５５分であると表示されている。
【００７６】
このサーフェスモードＳＴ２では、スイッチＡを押すとプランニングモードＳＴ３に直接、移行し、スイッチＢを押すとログモードＳＴ６に直接、移行する。また、スイッチＡを押した後、スイッチＡを押したままスイッチＢを５秒間押し続けると、設定モードＳＴ４に移行する。
【００７７】
このサーフェスモードＳＴ２の間に、入水監視スイッチ３０を介して入水したことを検出したときには自動的に機能チェックを行い、センサなどが正常であることを確認できれば、ダイビングモードＳＴ５に自動的に移行する。このときセンサなどに異常があったときにはその旨を報音装置３７からのアラーム音などで報知する。
【００７８】
（設定モードＳＴ４）設定モードＳＴ４は、月日１００、現在時刻１０１の設定の他に、警告アラームのＯＮ／ＯＦＦ設定、セーフティレベルの設定をも行うための機能である。この設定モードＳＴ４では、現在月日１００、年１０６、現在時刻１０１、セーフティレベル（図示せず。）、アラームのＯＮ／ＯＦＦ（図示せず。）、高度ランクが表示され、これらの項目のうち、セーフティレベルは、通常の減圧計算を行うレベルと、ダイビング後に１ランク高い高度ランクの場所へ移動することを前提とした減圧計算を行うレベルの２つのレベルに設定できる。アラームのＯＮ／ＯＦＦは、報音装置３７から各種警告のアラームを鳴らすか否かを設定するための設定であり、アラームをＯＦＦに設定しておけば、アラームが鳴らない。従って、ダイビング用情報処理装置１のように電池切れが特に致命的である装置では、アラームのために消費される電力を削減でき、都合がよい。
【００７９】
この設定モードＳＴ４では、スイッチＡを押す度に設定項目が時、秒、分、年、月、日、セーフティレベル、アラームＯＮ／ＯＦＦの順に切り換わり、それに相当する部分の表示が点滅する。このとき、スイッチＢを押すと設定項目の数値または文字が変わり、押し続けると数値や文字が早く変わる。アラームのＯＮ／ＯＦＦが点滅しているときにスイッチＡを押すと、サーフェスモードＳＴ２または時刻モードＳＴ１に戻る。また、スイッチＡ、Ｂのいずれもが１分〜２分間押されなければ、サーフェスモードＳＴ２または時刻モードＳＴ１に自動的に戻る。
【００８０】
この設定モードＳＴ４の間に、入水監視スイッチ３０を介して入水したことを検出したときにも自動的に機能チェックを行い、センサなどが正常であることを確認できれば、ダイビングモードＳＴ５に自動的に移行する。このときセンサなどに異常があったときにはその旨を報音装置３７からのアラーム音などで報知する。
【００８１】
（プランニングモードＳＴ３）プランニングモードＳＴ３とは、次に行うダイビングの最大水深と潜水時間の目安を入力するためのモードである。このモードでは、水深ランク３０１、無減圧潜水可能時間３０２、セーフティレベル、高度ランク、水面休止時間２０２、体内窒素グラフ２０３が表示される。水深ランク３０１のランクは、低ランクから高ランクへと順次、表示が変わっていくとともに、各水深ランク３０１での無減圧潜水可能時間３０２が表示される。たとえば、水深ランク３０１は、９ｍ、１２ｍ、１５ｍ、１８ｍ、２１ｍ、２４ｍ、２７ｍ、３０ｍ、３３ｍ、３６ｍ、３９ｍ、４２ｍ、４５ｍ、４８ｍの順に５秒毎に切り換わる。このとき、時刻モードＳＴ１からプランニングモードＳＴ３に移行したのであれば、過去の潜水によって体内に過剰な窒素蓄積がない初回潜水の計画であるため、体内窒素グラフ２０３が０であり、水深が１５ｍのときに無減圧潜水可能時間３０２が６６分と表示される。それ故、水深１２ｍ以上、１５ｍ以下のところで６６分未満まで無減圧潜水が可能であることがわかる。これに対して、サーフェスモードＳＴ２からプランニングモードＳＴ３に移行したのであれば、過去の潜水によって体内に過剰の窒素蓄積がある反復潜水の計画であるため、体内窒素グラフ２０３が４つ分であり、最大水深が１５ｍのときであれば、無減圧潜水可能時間３０２は４９分と表示される。それ故、水深１２ｍ以上、１５ｍ以下のところで４９分未満まで無減圧潜水が可能であることがわかる。
【００８２】
このプランニングモードＳＴ３では、水深ランク３０１が４８ｍと表示されるまでの間にスイッチＡを２秒以上押し続けると、サーフェスモードＳＴ２に直接、移行する。また、水深ランク３０１が４８ｍと表示された後には時刻モードＳＴ１またはサーフェスモードＳＴ２に自動的に移行する。さらに、所定の期間、スイッチ操作がないときにはサーフェスモードＳＴ２または時刻モードＳＴ１に自動的に移行するので、その都度、スイッチ操作を行う必要がない分、便利である。これに対して、スイッチＢを押すとログモードＳＴ６に直接、移行する。
【００８３】
また、プランニングモードＳＴ３の間に、入水監視スイッチ３０を介して入水したことを検出したときには自動的に機能チェックを行い、センサなどが正常であることを確認できれば、ダイビングモードＳＴ５に自動的に移行する。このときセンサなどに異常があったときにはその旨を報音装置３７からのアラーム音などで報知する。
【００８４】
（ダイビングモードＳＴ５）ダイビングモードＳＴ５とは、潜水時のモードであり、無減圧潜水モードＳＴ５１では、現在水深５０１、潜水時間５０２、最大水深５０３、無減圧潜水可能時間３０２、体内窒素グラフ２０３、高度ランクなど、ダイビングに必要な情報が表示される機能である。たとえば、図８に示す状態では、ダイビングを開始してから１２分経過し、水深が１６．８ｍのところにおり、この水深ではあと４２分間無減圧潜水を続けることができる旨が表示されている。また、現在までの最大水深は２０．０ｍである旨が表示され、さらに現在の体内窒素量は体内窒素グラフ２０３のマークが４つ点灯しているレベルである旨が表示される。
【００８５】
ここで、ダイビングモードＳＴ５に移行したことをダイバーに知らせる目的で、現在水深５０１の表示などを点滅させてもよい。このように構成すると、ダイビングモードＳＴ５での処理を行っている旨を液晶表示パネル１１での表示で視認できるので、ダイバーは、ダイビングモードＳＴ５が正常に機能しているか否かを心配する必要がないので、便利である。
【００８６】
このダイビングモードＳＴ５では、浮上速度監視機能として前記したとおり、急激な浮上は減圧症の原因となることから、６秒毎に現在の浮上速度を求めるとともに、この浮上速度と現在水深に対応する浮上速度許容値とを比較し、今回求めた浮上速度が浮上速度許容値よりも速い場合には、報音装置３７から４ｋＨｚの周波数でアラーム音（浮上速度違反警告）を３秒間発するとともに、浮上速度を落とすように液晶表示パネル１１において「ＳＬＯＷ」との表示と、現在水深の表示とを１Ｈｚ周期で交互に点滅させ、浮上速度違反警告を行う。そして、浮上速度が正常なレベルにまで低下したときには前記の浮上速度違反警告を停止する。
【００８７】
なお、ダイビングモードＳＴ５では、スイッチＡを押すと、それが押し続けられている間だけ、現在時刻表示モードＳＴ５２として、現在時刻１０１と現在水温５０４が表示される。図８に示す状態では、現在、時刻が１０時１８分であり、水温が２３℃であると表示されている。このように、ダイビングモードＳＴ５においてその旨のスイッチ操作があったときには所定の期間だけ現在時刻１０１や現在水温の表示を行うため、小さな表示面内で常時はダイビングに必要なデータだけを表示するように構成したとしても（無減圧潜水モードＳＴ５１）、現在時刻１０１などを必要に応じて表示できるので（現在時刻表示モードＳＴ５２）、便利である。しかも、このようにダイビングモードＳＴ５においても、表示の切り換えにスイッチ操作を用いたので、ダイバーが知りたい情報を適正なタイミングで表示できる。
【００８８】
このダイビングモードＳＴ５の間に、水深が１．５ｍより浅いところにまで浮上したときには、ダイビングが終了したものとして処理され、導通していた入水監視スイッチ３０が絶縁状態になった時点でサーフェスモードＳＴ２に自動的に移行する。この間、図３に示した潜水情報記録手段７８は、水深が１．５ｍ以深になったときから最後に１．５ｍ以浅になったときまでを１回のダイビングとしてこの間の潜水情報（ダイビングの日付、潜水時間、最大水深などの様々なデータ）を潜水情報記録手段７８（ＲＡＭ５４）に記憶、保持しておく。併せて、今回のダイビング中に前記の浮上速度違反警告が連続して２回以上あったときには、その旨も潜水情報として記録する。
【００８９】
本形態のダイビング用情報処理装置１は、あくまで無減圧潜水を前提に構成されているものであるが、万が一、減圧潜水の状態になったときには、その旨のアラーム音でダイバーに報知するとともに、以下の減圧潜水表示モードＳＴ５３に切り換わる。すなわち、減圧潜水表示モードＳＴ５３では、現在水深５０１、潜水時間５０２、体内窒素グラフ２０３、高度ランク、減圧停止深度５０５、減圧停止時間５０６、総浮上時間５０７が表示される。図８に示す状態では、潜水開始から２４分経過し、水深が２９．５ｍのところにいる旨が表示されている。また、体内窒素量が最大許容値を越え、危険であるため、安全な浮上速度を守りながら、水深３ｍのところまで浮上し、そこで１分間の減圧停止をするようにとの指示が表示される。また、安全な浮上速度として水面までには最低でも５分かけるようにとの指示が表示される。さらに、現在、体内窒素量が増大傾向にある旨が上向きの矢印５０８で表示される。そこで、ダイバーは、上記の表示内容に基づいて減圧停止した後、浮上するが、この減圧を行っている間、体内窒素量が減少傾向にある旨が下向きの矢印５０９で表示される。
【００９０】
（ログモードＳＴ６）時刻モードＳＴ１またはサーフェスモードＳＴ２においてスイッチＢを押すと、ログモードＳＴ６に直接、移行する。ログモードＳＴ６は、前記のとおり、ダイビングモードＳＴ５に入った状態で３分以上、水深１．５ｍよりも深く潜水したときの各種潜水情報を潜水情報記録手段８５がログデータ記録領域８７に記憶していたものを表示、再生する機能である。このようなダイビングのデータは、ログデータとして潜水毎に順次記憶され、最大１０本のログデータが記憶、保持され、それ以上潜水した場合には古いデータから順に削除され、常に最新の１０本分のダイビングが記憶されている。
【００９１】
このログモードＳＴ６において、ログデータは４秒毎に切り換わる２つの画面で表示される。第１の画面ＳＴ６１では、潜水月日６０１、平均水深５０９、潜水開始時刻６０３、潜水終了時刻６０４、高度ランク、潜水を終了したときの体内窒素グラフ２０３が表示される。第２の画面ＳＴ６２では、その日での潜水ナンバーであるログナンバー６０５、最大水深６０８、潜水時間６０６、最大水深時の水温６０７、高度ランク、潜水を終了したときの体内窒素グラフ２０３が表示される。たとえば、図８に示す状態では、高度ランクが０のところで、１２月５日の２本目のダイビングは潜水が１０時０７分に開始された以降、１０時４５分で終了し、３８分間の潜水であった旨が表示されている。このときのダイビングでは、平均水深が１４．６ｍ、最大水深が２６．０ｍ、最大水深時の水温が２３℃であり、ダイビング終了後、体内窒素グラフ２０３が４つ分の窒素が体内に溶け込んだ旨を表示している。このように、ログモードＳＴ６では２画面を自動的に切り換えながら各種の情報を表示するので、表示面が小さくても表示できる情報量が多い。
【００９２】
また、ログモードＳＴ６では、今回表示しているダイビング中に前記の速度違反警告が２回以上あったときには、その旨を、たとえば液晶表示パネル１１の第７の表示領域１１７において「ＳＬＯＷ」と表示する。
【００９３】
このログモードＳＴ６ではスイッチＢを押す度に、新しいデータから古いデータに切り換わり、最も古いデータが表示された後は、時刻モードＳＴ１またはサーフェスモードＳＴ２に移行する。その途中にスイッチＢを２秒以上押し続けた場合も時刻モードＳＴ１またはサーフェスモードＳＴ２に移行する。さらに、スイッチＡ、Ｂのいずれもが１分〜２分間押されない場合も、サーフェスモードＳＴ２または時刻モードＳＴ１に自動的に戻るので、その都度、スイッチ操作を行う必要がない分、便利である。これに対して、スイッチＡを押すと、プランニングモードＳＴ３に直接、移行する。このように、本形態では、プランニングモードＳＴ３、サーフェスモードＳＴ２、ログモードＳＴ６のうち、いずれのモード間でも１回のスイッチ操作で相互の直接移行が可能である。従って、各モードへの移行ルートの自由度が高いので、プランニングモードＳＴ３とログモードＳＴ６との間でも１回の操作で相互に、直接移行できるため、過去の潜水記録を参照しながら潜水計画を立てるのに手間がかからず、便利である。
【００９４】
また、ログモードＳＴ６の間に、入水監視スイッチ３０を介して入水したことを検出したときには自動的に機能チェックを行い、センサなどが正常であることを確認できれば、ダイビングモードＳＴ５に自動的に移行する。このときセンサなどに異常があったときにはその旨を報音装置３７からのアラーム音などで報知する。
【００９５】
このように、プランニングモードＳＴ３、サーフェスモードＳＴ２（時刻モードＳＴ１）、ログモードＳＴ６、設定モードＳＴ４のいずれのモードからもダイビングモードＳＴ５に自動的に移行することができるので、たとえば、ログモードＳＴ６において過去の潜水記録を確認した後、あるいはプランニングモードＳＴ３で潜水計画を設定した後、そのまますぐに潜水を開始することができるなど、便利である。また、いずれもモードからでも入水監視スイッチ３０を介して入水したことを検出したときには、自動的にダイビングモードＳＴ５に移行できるので、例えば、手動でダイビングモードに切替るなどの操作を必要としない。すなわち、ダイビングモードＳＴ５に移行する準備ができていないときに、ダイビングモードＳＴ５に移行し損ねたことを、潜水を開始した後にはじめて知るという失敗がないので、使い勝手がよい。しかも、ダイビングモードＳＴ５に移行する際には予め機能チェックを行い、該機能チェックにおいて異常を検出したときにはダイビングモードＳＴ５への移行を自動的に停止するとともに、その旨の報知を行うため、異常があるままダイビングモードＳＴ５に移行するという失敗がなく、しかも異常にすぐ気付くので、便利である。また、潜水中に体内に蓄積される不活性ガスの量を監視し損なうということがないので、減圧症を防止するという観点から安全でもある。
【００９６】
【発明の効果】
以上説明したように、本発明によれば、大気中において誤って潜水状態となった場合には、その誤認状態を解除できるため、ダイバー（使用者）によって、解除のためのわずらわしい操作なども必要としない。
【００９７】
従って、本発明によれば、大気中において誤って潜水状態となった以降、潜水状態として扱い続けることがなく、大気中での情報提供状態に自動的に遷移するため、実使用に沿った形態で情報提供を行うことができ、信頼性をより向上させる効果を有する。また、ダイバー（使用者）によって、解除のためのわずらわしい操作なども必要としない。さらに、解除判定手段はＲＯＭ５３に格納されているプログラムにより実施されるので、従来の電子回路による制御に頼らないので、回路基板の実装面積を縮小化でき、装置の小型化、薄型化などに貢献する。
【図面の簡単な説明】
【図１】 （Ａ）は、本発明を適用したダイビング用情報処理装置の装置本体および腕バンドの一部を示す平面図、（Ｂ）は、その装置本体を腕時計の６時の方からみたときの側面図である。
【図２】 本発明を適用したダイビング用情報処理装置全体のブロック図である。
【図３】 本発明を適用したダイビング用情報処理装置に構成した安全情報導出手段の機能ブロック図である。
【図４】 本発明を適用したダイビング用情報処理装置において、体内窒素量を計測する際に用いる半飽和時間の意味を示す説明図である。
【図５】 本発明を適用したダイビング用情報処理装置において、ダイビングの開始・終了の判定、浮上速度違反警告、および水面休止時間の計測を行うための構成を示す機能ブロック図である。
【図６】 本発明を適用したダイビング用情報処理装置において、ダイビングの開始・終了を判定するための処理内容を示す説明図である。
【図７】 本発明を適用したダイビング用情報処理装置において浮上速度を監視するために行う浮上速度の計測のタイミング、および浅いところでは浮上速度違反警告を発しない理由を示す説明図である。
【図８】 本発明を適用したダイビング用情報処理装置で行われる各モードを説明するためのフローチャートである。
【図９】 従来のダイビング用情報処理装置において、ダイビングの開始・終了を判定するための処理内容を示す説明図である。
【図１０】 本発明を適用したダイビング用情報処理装置において潜水状態の解除を判定するための構成を示すブロック図である。
【図１１】 本発明を適用したダイビング用情報処理装置において誤動作の潜水状態と、潜水状態の解除を判定するための処理タイミングと内容を示す説明図である。
【符号の説明】
１ ・・・ダイビング用情報処理装置
５ ・・・操作部
１０・・・表示部
１１・・・液晶表示パネル
３０・・・入水監視スイッチ
３４・・・圧力センサ
３７・・・報音装置
３８・・・振動発生装置
５０・・・制御部
５１・・・ＣＰＵ
５３・・・ＲＯＭ
５４・・・ＲＡＭ
６１・・・水深計測手段
６８・・・計時手段
６９・・・気圧計測手段
８１・・・潜水開始終了判定手段
８２・・・潜水開始判定用水深値
８３・・・潜水終了判定用水深値
８４・・・潜水終了判定用時間
８５・・・潜水情報記録手段
８８・・・潜水判定用時間
８９・・・水面休止時間計測手段
９３・・・解除手段
９４・・・解除判定時間
９５・・・高度ランク判定手段
９６・・・高度ランク比較手段
９７・・・高度ランク記憶手段
ＳＴ１・・・時刻モード
ＳＴ２・・・サーフェスモード
ＳＴ３・・・プランニングモード
ＳＴ５・・・ダイビングモード
ＳＴ６・・・ログモード[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for canceling malfunction of an information processing apparatus for diving, which is also called a dive computer.
[0002]
[Prior art]
Information equipment with water depth measurement and timekeeping functions is used during diving, but recently, based on those measurements, changes in water pressure during diving and changes in atmospheric pressure during high-altitude movements are performed, and inert gas ( A diving information processing device called a dive computer, in which a diver avoids decompression sickness and displays information for diving safely by simulating the absorption / discharge amount of (nitrogen) by calculation, is also becoming popular in divers.
[0003]
Conventionally, as proposed in Japanese Patent Application Laid-Open No. 8-327355, pressure measurement is performed every predetermined time in an information device having a water depth measurement function, and detection of continuity by entering a water detection switch composed of two electrodes. Thus, from any display mode, the state immediately shifts to the diving state, that is, the diving mode, and the water pressure measurement is started by setting the atmospheric pressure value per predetermined time to 0 meter. Moreover, if the water detection switch is continuously turned off after detecting water entry and after detecting a predetermined depth or more, the water depth display is canceled and the time is displayed. There is also a proposal that the input state of the water sensing switch is checked by a switch-on count circuit after detection of water entry and after detection of a predetermined depth or more.
[0004]
[Problems to be solved by the invention]
However, even after detecting a water depth of more than a predetermined depth after the start of diving, temporary water is generated due to adhesion of breathing air bubbles exhaled by the diver, or formation of an insulating film on the surface of the conduction switch terminal that detects water entry. Insulation of the detection switch may be detected, and in such a case, there is a problem that the diving information is not displayed even underwater. This is considered to be a fatal problem of being an information device that allows divers to conduct safe diving management.
[0005]
In addition, continuity may be detected by handling the device body in the atmosphere with a wet device or by contacting the water detection switch with a part of the body. If a change in atmospheric pressure due to a drop in altitude occurs after a transition to dive mode due to such an erroneous operation during high altitude movement, a malfunction may occur in which the pressure difference is measured and displayed as the water depth. At this time, simply releasing the dive mode and returning to the original display state before moving to a high altitude will clear all of the inert gas absorption / exhaustion calculations to the initial state, and the body pressure changes due to the high altitude movement. There is a problem that the continuous measurement that is an advantage of the portable device and the calculation of the amount of inert gas in the body based on the measurement result are not performed.
[0006]
Therefore, the present invention determines that the vehicle is moving at high altitude according to the detection state of the water detection switch, the amount of pressure change, and the elapsed time of these states when the diving display state is entered during high altitude movement, and releases the dive mode. Even after returning from the malfunctioning state to the display state in the atmosphere, the absorption / exhaustion simulation of inert gas in the body is continuously performed and displayed, so that divers can safely dive more accurately and reliably. The purpose is to provide sexual information.
[0007]
[Means for Solving the Problems]
The diving information processing apparatus of the present invention
A water depth measuring means and a pressure measuring means for measuring a water depth value during diving and a pressure value during non-diving by the same pressure sensor or separate pressure sensors;
A time measuring means for measuring the diving elapsed time;
A display unit for displaying various information such as the water depth and the diving elapsed time;
Safety information deriving means for calculating the amount of inert gas absorbed / exhausted into the body by the depth value and the dive time;
An external input means for detecting the start and end of diving by a water detection sensor;
When the detection result of the external input means and the water depth value measured by the water depth measurement means are deeper than a preset water depth value for diving determination, the diver is considered to be diving and the display state of the display unit is set to the diving mode. A diving determination means for determining to shift to a diving information processing device,
When the information processing apparatus for diving is used in the atmosphere, when water is attached to the water detection sensor and the display state shifts to the diving mode, a release means for releasing the display state is provided. Features.
[0008]
In the present invention, after the water depth measurement function operation is started by the conduction of the inflow monitoring switch (external input means) in the atmosphere, for example, in the state where the intrusion monitoring switch is touched with a wet finger or the like while boarding the airplane, Even if the barometric pressure value changes and the display unit continues to display the diving status, it is possible to check the information in the atmosphere to automatically release the diving status after a predetermined time. It is ready for diving when you want to use it, increasing the reliability of information. Further, even when the diver himself is unconscious and has not recognized the transition to the diving state in the atmosphere, the release is automatically performed, so the diver's hand is not bothered.
[0009]
Further, the information processing apparatus for diving according to the present invention includes an altitude rank determination unit that determines each time a diver belongs to a predetermined altitude rank based on a periodic measurement result of the atmospheric pressure measurement unit, and the altitude rank An altitude rank storage unit that stores a determination result by the determination unit, and the calculation is continued based on the transition of the altitude rank stored in the altitude rank storage unit even when the release unit is operated. It is characterized by.
[0010]
That is, since the information processing device for diving is a device that simulates the amount of inert gas in the diver by calculation as needed, it measures the atmospheric pressure value even after the malfunction is released, and the inert gas ( Nitrogen) absorption / discharge calculation is continued to improve accuracy and improve information display reliability.
[0011]
Further, the present invention is characterized in that it has a plurality of operation units in addition to the external input means, and is configured to cancel the diving state when a specific input from the operation unit is performed. When the diver recognizes the misidentified state, the display mode can be consciously returned to the state in the atmosphere. Further, when the pressure value is changed in the inspection in the manufacturing process, it may be erroneously recognized, and it is efficient because it can be arbitrarily selected to return to the normal state.
[0012]
Furthermore, the present invention is characterized by comprising means for notifying that when the release means operates. By notifying by visual, auditory, or tactile sensation, the diver is surely notified that the calculation of the inert gas (nitrogen) absorption / excretion in the body is continued assuming that the altitude rank has changed. To do.
[0013]
Furthermore, in the present invention, when the release means operates, recording by the diving information recording means is not performed. As a result, even if it falls under the condition of recording diving information in the air in a misidentified state, it can be distinguished from the actual diving in the water, and erroneous recording can be prevented by not recording diving information. it can.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The best mode of the present invention will be described below with reference to the drawings.
[0015]
[Overall Configuration] FIGS. 1A and 1B are a plan view showing a part of an apparatus main body and an arm band of an information processing apparatus for diving according to this embodiment, and a view of the apparatus main body from 6 o'clock, respectively. It is a side view. FIG. 2 is a block diagram thereof.
[0016]
In FIG. 1, the diving information processing apparatus 1 of this embodiment is also called a so-called dive computer, measures the amount of nitrogen accumulated in the body during diving (in-body nitrogen partial pressure), and from this measurement result, It displays the downtime that should be taken on land after diving. This diving information processing apparatus 1 has a rectangular device body 2 with arm bands 3 and 4 connected to the 6 o'clock side and the 12 o'clock side of the wristwatch, respectively. Similarly, it can be worn on the arm. In the apparatus main body 2, the upper case 21 and the lower case 22 are fixed by a method such as screwing in a completely watertight state, and a substrate (not shown) on which various electronic components and the like are mounted is housed therein. Yes. The power supply for the entire apparatus is a button-type battery (not shown) built in the apparatus body 2.
[0017]
The display unit 10 using the liquid crystal display panel 11 is configured on the upper surface side of the apparatus main body 2, and switches A and B including two push buttons are configured on the 6 o'clock side of the wristwatch. For this reason, switch operation is easy even during diving. The switches A and B are operation units 5 for selecting and switching each mode performed in the information processing apparatus 1 for diving, as will be described later. Of the upper surface side of the apparatus main body 2, on the 9 o'clock side of the wristwatch, a water incoming monitoring switch 30 (moisture detection sensor) for monitoring whether or not diving is started is configured. The incoming water monitoring switch 30 includes two electrodes 31 and 32 exposed on the upper surface of the apparatus main body, and these electrodes 31 and 32 are conducted with seawater or the like, and the resistance value between the electrodes 31 and 32 is reduced. It is determined that water has occasionally entered. However, the incoming monitoring switch 30 is used only to detect that water has entered, and to shift to a diving mode to be described later, and does not detect that one tie has been started. That is, the arm equipped with the information processing device for diving 1 may have just been immersed in seawater, and in such a case, it should not be treated as having started diving. Therefore, in the diving information processing apparatus 1 of the present embodiment, the water depth (water pressure) is greater than a certain level by the pressure sensor built in the apparatus body, for example, in this embodiment, the water depth is deeper than 1.5 m (water depth value for diving start determination) It is assumed that diving started when
[0018]
As shown in FIG. 2, the diving information processing apparatus 1 of the present embodiment includes a liquid crystal display panel 11 for displaying various types of information and notifying a user, and a display unit 10 including a liquid crystal driver 12 for driving the liquid crystal display panel 11. And a control unit 50 (control means) that performs processing in each mode and causes the liquid crystal display panel 11 to perform display according to each mode. To the control unit 50, outputs from the switches A and B and the water monitoring switch 30 are input.
[0019]
Since the diving information processing apparatus 1 displays normal time and measures diving time, the clock output from the oscillation circuit 31 is input to the control unit 50 via the frequency dividing circuit 32, and the time The time counter 68 is configured by the counter 33 for measuring time in units of one second.
[0020]
The diving information processing apparatus 1 measures and displays the water depth during diving, and measures the amount of nitrogen gas (inert gas) accumulated in the body from the water depth (water pressure) and the diving time. The pressure sensor 34 (semiconductor pressure sensor), the amplification circuit 35 for the output signal of the pressure sensor 34, and the analog signal output from the amplification circuit 35 is converted into a digital signal and output to the control unit 50. A water depth measuring means 61 including a conversion circuit 36 is configured. Here, the pressure sensor 34 may be a combination of water depth measurement and atmospheric pressure measurement, or may be a separate body. If the combination of water depth measurement and barometric pressure measurement is used, the portable size can be reduced, and the difference in the reference value of the pressure value at a water depth of 0 meter and an altitude of 0 meter can be easily adjusted. Note that the pressure sensor 34 configured in this embodiment is configured to be used for both water depth measurement and atmospheric pressure measurement, and the water monitoring switch 30 is insulated, which will be described later, a surface mode ST2, a planning mode ST3, and a log mode. In the atmospheric mode of ST4, the atmospheric pressure is periodically measured by the atmospheric pressure measuring means 69 at every predetermined time, and the altitude rank determining means 95 determines which altitude rank is classified in advance.
[0021]
Furthermore, the diving information processing apparatus of the present embodiment can cope with a sudden change in atmospheric pressure due to high altitude movement, etc., and absorption / discharge of inert gas (nitrogen gas) into the body accompanying a change in altitude. Later, when there is a change compared with the altitude rank previously measured by altitude rank comparison means 96, calculation of absorption / excretion of the amount of nitrogen in the body is started, and the elapsed time and the inert gas adaptation time after the altitude rank change are displayed It is comprised so that it may change to surface mode ST2 to do.
[0022]
Further, the present embodiment includes a sound reporting device 37 and a vibration generating device 38, which can issue a warning acoustically by the sound reporting device 37 and tactilely by the vibration generating device 38. As the amount of nitrogen dissolved in the body increases, nitrogen has an anesthetic action, so divers themselves may become conscious and in a state of consciousness. Therefore, with these warning functions, safer diving is possible. It becomes possible. Especially for a body whose situation judgment / danger recognition is dull, the vibration generator 38 can issue a warning to a diver as a more powerful stimulus than other warning functions.
[0023]
In this embodiment, the control unit 50 includes a CPU 51 that controls the entire apparatus, a control circuit 52 that controls the liquid crystal driver 12 and the time counter 33 under the control of the CPU 51, a ROM 53, and a RAM 54. Each mode to be described later is realized by each process performed by the CPU 51 based on a program stored in the ROM 53. The RAM 54 is used as a memory for temporarily recording various data (diving information) obtained during diving, a memory for recording log data for reproducing diving information in a log mode described later, and the like.
[0024]
[Description of Display Unit] Referring again to FIG. 1A, the display surface of the liquid crystal display panel 11 includes eight display areas. Of these eight display areas, the first display area 111 located on the 12 o'clock side of the wristwatch is the largest of the display areas, and includes a diving mode, a surface mode (time mode) described later. ), Current depth, current date, depth, and diving date (log number) are displayed in the planning mode and log mode, respectively. The second display area 112 located at 3 o'clock from the first display area 111 has a dive time, a current time, and no decompression in diving mode, surface mode (time mode), planning mode, and log mode, respectively. The dive time and dive start time (dive time) are displayed. The third display area 113 located on the 6 o'clock side from the first display area 111 has a maximum water depth, a body nitrogen draining time, a diving mode, a surface mode (time mode), a planning mode, and a log mode, The safety level and maximum water depth (average water depth) are displayed. The fourth display area 114 located on the 3 o'clock side from the third display area 113 has a no-decompression dive time and a water surface pause in diving mode, surface mode (time mode), planning mode, and log mode, respectively. The time, temperature, and dive end time (maximum depth water temperature) are displayed. In the fifth display area 115 located at the 6 o'clock side from the third display area 113, a power capacity capacity warning 104 and a high place rank 103 are displayed. In the sixth display area 116 located closest to the 6 o'clock side of the liquid crystal display panel 11, the amount of accumulated nitrogen in the body is displayed in a graph. Further, in the seventh display area 117 located at 3 o'clock side from the sixth display area 116, whether nitrogen (inert gas) tends to be absorbed or not when exhausted in a diving mode in the diving mode. An area indicating whether there is a tendency, an area displaying “SLOW” as one of the ascent speed warnings indicating that the ascent speed is too high, and “DECO” as an alert indicating that a decompression dive has been reached during diving The area to be displayed is configured.
[0025]
In this way, the display surface of the liquid crystal display panel 11 has the largest area (first display area 111) for displaying the current water depth in the diving mode. The display of is easy to see. Moreover, since the display surface of the liquid crystal display panel 11 is recessed from the upper surface of the upper case 21, even if there is a step due to the upper case 21 around the display surface of the liquid crystal display panel 11, it is displayed in the diving mode. Since the display area of the current water depth (the first display area 111) is arranged on the 12 o'clock side, the display of the current water depth is not hidden by the step. Therefore, also from this point, in the information processing apparatus 1 of this embodiment, it is easy to visually recognize the display of the current water depth that is important data.
[0026]
[Configuration of Safety Information Deriving Means] FIG. 3 shows the amount of accumulated nitrogen in the body (the accumulated amount of inert gas in the body) in the information processing apparatus 1 for diving according to the present embodiment. It is a functional block diagram of safety information deriving means for deriving safety information such as decompression dive possible time.
[0027]
In FIG. 3, the diving information processing apparatus 1 simulates the state in which nitrogen contained in inhalation is absorbed and discharged into the body, and calculates the amount of nitrogen in the body (partial nitrogen partial pressure). An information deriving means 60 is configured, and the safety information deriving means 60 is able to dive for no decompression diving at a certain depth based on the amount of nitrogen in the body (no decompression dive possible time), and excessive in the body by the previous diving. It is configured to derive how much time the nitrogen dissolved in the water is discharged on the surface of the water (in-body nitrogen discharging time / in-body inert gas discharging time) as safety information for diving safely. Yes. The calculation of the amount of nitrogen in the body described below is merely an example, and various methods can be used. Therefore, here, an example will be briefly described.
[0028]
The safety information deriving means 60 first calculates the water depth measuring means 61 using the pressure sensor 34, the amplification circuit 35, and the A / D conversion circuit 36 shown in FIG. 2 is realized as a function of the CPU 51, ROM 53, and RAM 54 shown in FIG. 2, respiratory air nitrogen partial pressure storage means 63 using the RAM 54 shown in FIG. 2, CPU 51, ROM 53 shown in FIG. FIG. 2 shows a partial pressure calculation means 64 for nitrogen in the body realized as a function of the RAM 54, a nitrogen partial pressure storage means 65 using the RAM 54 shown in FIG. 2, a time counting means 68 using the time counter 33 shown in FIG. Data realized as functions of the CPU 51, the ROM 53, and the RAM 54 shown in FIG. 2, and stored in the respiratory nitrogen partial pressure storage means 63 and the body nitrogen partial pressure storage means 65 Comparing means 66 for performing compare, half-saturation time selecting means 67 is configured to be implemented as a function of the CPU 51, ROM 53, RAM 54 shown in FIG.
[0029]
Among these components, the respiratory nitrogen partial pressure calculation means 62, the in-vivo nitrogen partial pressure calculation means 64, the comparison means 66, and the half-saturation time selection means 67 are implemented as software in the CPU 51, ROM 53, and RAM 54 of FIG. Although it can be realized, it is also possible to realize only by a logic circuit which is hardware or a combination of a logic circuit and a processing circuit including a CPU and software.
[0030]
In this configuration example, the water depth measuring means 61 measures and outputs the water pressure P (t) corresponding to the time t.
[0031]
The respiratory air nitrogen partial pressure calculating means 62 is based on the water pressure P (t) output from the water depth measuring means 61, and the respiratory air nitrogen partial pressure PIN. ₂ Calculate (t) and output. Respiratory nitrogen partial pressure PIN ₂ (T) is the following formula from the water pressure P (t) during diving:
PIN ₂ (T) = 0.79 × P [bar]
Can be obtained by calculation.
[0032]
The respiratory air nitrogen partial pressure storage means 63 stores the PIN calculated by the respiratory air nitrogen partial pressure calculation means 62 as shown in the above equation. ₂ Store the value of (t).
[0033]
The body nitrogen partial pressure calculation means 64 calculates the body nitrogen partial pressure PGT (t) for each tissue having different nitrogen absorption / extraction rates. Taking one organization as an example, diving time t = t ₀ To t _E The partial pressure of nitrogen PGT (t _E ) Is t ₀ Body nitrogen partial pressure PGT (t ₀ ) And dive time t _E And half-saturation time T _H Calculated by
[0034]
Half-saturation time T here _H As shown in FIG. 4, the nitrogen partial pressure PGT (t _E ) Is t ₀ Body nitrogen partial pressure PGT (t ₀ ) To reach the partial pressure of respiratory air nitrogen PIIG under this water pressure ₀ ) And the partial pressure of respiratory nitrogen pressure PIIG (half time).
[0035]
Then, as shown in FIG. _E ) Is stored in the nitrogen partial pressure storage means 65 in the body. The calculation formula for this is as follows.
[0036]
[Expression 1]

Here, k is a constant obtained experimentally.
[0037]
Next, the comparison unit 66 uses the result of the respiratory nitrogen partial pressure storage unit 63 as the PIN. ₂ (T) is compared with PGT (t) which is the result of the body nitrogen partial pressure means 5, and as a result, the half saturation time T used by the body nitrogen partial pressure calculation means 64 by the half saturation time selection means 67. _H Is variable.
[0038]
For example, t = t ₀ Breathing nitrogen partial pressure PIN ₂ (T ₀ ), Partial nitrogen pressure PGT (t ₀ ) Are stored in the respiratory nitrogen partial pressure storage means 63 and the internal nitrogen partial pressure storage means 65, respectively, ₂ (T ₀ ) And PGT (t ₀ ).
[0039]
The nitrogen partial pressure calculation means 64 in the body is controlled by the half-saturation time selection means 67 as follows: t = t _E Body nitrogen partial pressure PGT (t _E ) Is calculated.
[0040]
[Expression 2]

[Equation 3]

In the above two equations, k is a constant and T _H2 <T _H1 Is calculated.
[0041]
Note that PGT (t ₀ ) = PIN ₂ (T ₀ ), Half-saturation time T _H = (T _H2 + T _H1 ) / 2. These times (t ₀ And t _E Is measured by the time measuring means 68 of FIG.
[0042]
Where PGT (t ₀ ) ＞ PIN ₂ (T ₀ ) Is when nitrogen is excreted from the body and PGT (t ₀ ) <PIN ₂ (T ₀ ) Is when nitrogen is absorbed into the body. Changing the half-saturation time at these times means that when nitrogen is discharged, the half-saturation time is long and it takes time to discharge, and conversely, when nitrogen is absorbed, the half-saturation time is long. The time required for absorption is short compared to the time required for discharge. In this way, the simulation of the amount of nitrogen in the body can be performed more strictly. Therefore, if the permissible value of nitrogen partial pressure in the body is set, the time required to reach this value at a certain depth (water pressure) (no decompression dive time / safety information) and the nitrogen partial pressure in the body on the water surface Can be obtained with high accuracy the time until the pressure falls to the equilibrium value (intracorporeal nitrogen excretion time / safety information). In this way, the diving information processing apparatus 1 according to the present embodiment includes the dive time deriving means 92 and the in-vivo nitrogen discharge time deriving means 91 for deriving the no-decompression diving possible time and the in-vivo nitrogen discharge time as safety information for the diver. Has been.
[0043]
[Configuration for Determining Start / End of Diving] The diving information processing apparatus 1 measures the depth of water, the measurement of water temperature, the measurement of diving time, and the amount of accumulated nitrogen in the body during diving. Measurement, measurement of diver's ascent speed, and the like are performed, and display and warning are performed based on these measurement results. Further, at the end of diving, diving information such as the measurement results and the presence / absence of a warning is recorded as log data and is reproduced in a log mode to be described later. These diving information recording operations use a part of the functions of the time measuring means 68, the water depth measuring means 61, the incoming water monitoring switch 30, and the control unit 50 (functions of the CPU 51, ROM 53, RAM 54, etc.) shown in FIG. Done.
[0044]
That is, as shown in FIG. 5, in the diving information processing apparatus 1, the outputs of the water depth measuring means 61, the time measuring means 68, and the incoming water monitoring switch 30 shown in FIG. 50 includes a diving start / end determination unit 81 and a diving information recording unit 85 using the RAM 54 as a memory. These configurations will be described in detail below with reference to FIG.
[0045]
The diving start / end determination means 81 has a water depth value of 1.5 m set as the water diving start determination water depth value 82 at time T12 after the water ingress monitoring switch 30 detects that the diver has entered the water at time T11. It is determined that diving is started when diving deeper. As a result, measurement of diving time and the like are started. Diving information such as diving time, average water depth, diving start time, body nitrogen amount in diving, maximum water depth, diving time, water temperature at maximum water depth, diving date and time, altitude rank, etc. In the diving information recording means 85, it is recorded in the temporary recording area 86 (temporary recording unit) configured in the RAM 54 while being updated during the diving as necessary.
[0046]
Further, the diving start / end determination means 81 is set as the diving end determination water depth value 83 at time T13 based on the measurement result of the water depth measurement means 61 and the measurement result of the time measuring means 68 after starting diving. Even if a diver ascends to a position shallower than the water depth value of 1.5 m, it is not determined that one dive has been completed if 10 minutes set as the dive end determination time 84 have not elapsed. For this reason, the diving start / end determination means 81 is 10 minutes (time for diving end determination) even if the diver ascends to a position shallower than the water depth value of 1.5 m (water depth value for diving end determination 82) at time T13. 84), when diving to a position deeper than the water depth value of 1.5 m (water depth value 82 for diving completion determination) at time T14, it is determined that one dive continues.
[0047]
In other words, the diving start / end determination means 81 has the diver surfaced at a position shallower than the water depth value of 1.5 m (the water depth value for diving end determination 83) at time T15, and 10 minutes (time of diving completion determination at time T16). It is determined that the diving is finished only when the operation time 84) has elapsed. Then, the diving information recording means 85 finally floats to a position shallower than the diving end determination water depth value 83 from the time when diving first at a position deeper than the diving start determination water depth value 82 (time T12). The diving information recorded in the temporary recording unit 86 until (time T15) is determined as log data for one dive, and is recorded with a log number in the log data recording area 87 configured in the RAM 54. . Therefore, if the log data recorded in the log data recording area 87 is used, diving from time T12 (dive start time) to time T15 (dive end time) is 1 even for diving as shown in FIG. The diving information at that time can be displayed and reproduced on the liquid crystal display panel 11 of the display unit 10 later.
[0048]
Here, during diving, the liquid crystal display panel 11 displays the current water depth, diving time, maximum water depth, no decompression dive time, body nitrogen graph, altitude rank, and other diving information necessary for diving. In the liquid crystal display panel 11, the diver ascends at a position shallower than the water depth value of 1.5 m (water depth value 83 for dive completion determination) and until 10 minutes (time 84 for dive completion determination) elapses thereafter. The diving information continues to be displayed. As described above, even if the diver ascends to a position shallower than the water depth value of 1.5 m (diving end determination depth value 82) at time T13, before 10 minutes (diving end determination time 84) elapses. Again, when diving to a position deeper than the water depth value of 1.5 m (water depth value 82 for diving completion determination) at time T14, it is treated that one dive continues. Furthermore, the diver ascends to a position shallower than the water depth value of 1.5 m (water depth value 83 for diving completion determination), and after 10 minutes (time 84 for diving completion determination time), the diver rises above the water surface. Until the electrodes 31 and 32 return to the insulated state, the above-described information continues to be displayed on the liquid crystal display panel 11. That is, after the incoming water monitoring switch 30 detects that the diver has entered the water by the conduction of the electrodes 31 and 32, the diver rises above the water surface and the electrodes 31 and 32 of the incoming water monitoring switch 30 return to the insulated state. Until that time, the same information as the diving mode is continuously displayed on the liquid crystal display panel 11.
[0049]
Further, in this embodiment, the diver at the time T15 last ascends to a position shallower than 1.5 m (the diving end determination water depth value 83) until ten minutes (the diving end determination time 84) elapses at the time T16. In the meantime, the diving information recorded in the temporary recording unit 86 can be displayed on the liquid crystal display panel 11 of the display unit 10 by a predetermined switch operation. Therefore, since the diving information of the current diving can be reproduced and displayed even before the diving information is confirmed as log data in the current diving, it is convenient.
[0050]
Thus, according to the diving information processing device 1 of the present embodiment, even if the diving surface is ascended to a shallow position and then dives to a deep position again, it is treated as a single dive and may be treated as a plurality of divings by mistake. Absent. Accordingly, the diving information can be recorded and reproduced in a form suitable to the actual situation, such as the diving information is not recorded and reproduced in small pieces. In addition, it is possible to prevent unnecessary diving information such as elementary diving from being recorded in the log data recording area 87.
[0051]
Here, since log data can be recorded in the log data recording area 87 only for a maximum of 10 dives, for example, when diving further, old data is automatically deleted in order. Even if configured in this way, in this embodiment, even if it dives to a shallow position and then dives to a deep position again, it is treated as a single dive, so important log data is inadvertently updated and deleted. There is nothing to do.
[0052]
Further, the diving start / end determining means 81 detects that the diver has entered the water at time T11 and the electrodes 31 and 32 are turned on to detect that the water inflow monitoring switch 30 detects that the water depth value of 1.5 m at time T12 ( The time until the last ascending to a place shallower than the water depth value of 1.5 m (the water depth value 83 for diving completion determination) at time T15 after diving deeper than the water depth value 82 for diving start determination) If it is within 3 minutes preset as 88, that is, if diving has not been performed for more than 3 minutes, it is assumed that the diving is performed for about the time of diving. It is not recorded in the log data recording area 87. For this reason, since unnecessary diving information is not recorded in the log data recording area 87, log data can be recorded in the log data recording area 87 only for a maximum of 10 dives. Even if it is automatically deleted, important log data is not inadvertently updated or deleted.
[0053]
[Function for canceling diving state during malfunction] As described above in the overall configuration, in the diving information processing apparatus 1 of this embodiment, the atmospheric pressure is measured regularly by the atmospheric pressure measuring means 69 and is classified in advance by the altitude rank determining means 95. The altitude rank comparing means 96 compares the previous altitude rank stored in the RAM 54 by the altitude rank storing means 97 after the previous atmospheric pressure measurement, and when there is a change, The calculation of the amount absorption / discharge is started, and a transition is made to the surface mode ST2 for displaying the rest time after the dive is completed.
[0054]
A remarkable example of such a change in atmospheric pressure is, for example, an altitude change during boarding of an airplane. Here, a state of a sudden change in atmospheric pressure caused by boarding an airplane or the like and a configuration for canceling malfunction in the present invention will be described in detail with reference to FIGS.
[0055]
At time T21, the atmospheric pressure measuring means 69 measures the atmospheric pressure and stores it as an altitude rank in the RAM 54 by the altitude rank storage means 97. At time T <b> 22, continuity is detected by contact of a wet finger or the like with the water entry monitoring switch 30, and water depth measurement is started by the water depth measuring means 61. Thereafter, for example, when the air pressure drops by 1500 m or more, the atmospheric pressure value increases. The difference is equivalent to 1.5 m in water pressure, and at time T23, the diving start / end determining means 81 determines that the water is diving by comparison with 1.5m (diving start determination water depth value 72). Although the insulation of the water monitoring switch 30 is detected at time T24, since it is determined that the vehicle is diving after time T23, the dive mode ST5 is continued, and the water depth is measured by the water depth measuring means 61.
[0056]
Further, when the electrical conduction state of the incoming monitoring switch 30 is detected as being insulated at time T24, the release means 93 uses the water surface downtime measuring means 83 to measure the time during which the incoming water monitoring switch 30 is insulated as the water surface downtime. Start. The release means 93 compares the water surface pause time with the release determination time 94 (10 minutes) every predetermined time, and if the time has passed, the dive mode ST5 indicates that the dive state is malfunctioning. Judgment is made, and the display content transits to the surface mode ST2 and is displayed on the display panel. That is, after detecting the continuity of the incoming monitoring switch 30, the release means 93 continues to detect the insulation of the incoming monitoring switch 30 at time T25 even if it is determined that the diving start / end determining means 81 is diving. When the time has passed 10 minutes or more of the release determination time 94, the water depth measurement and the dive time measurement are stopped, and the display shifts to the surface mode 2 display.
[0057]
Furthermore, the diver is notified that the malfunction has been canceled by an alarm from the sound reporting device 37 and a vibration at the vibration generating device 38. Moreover, you may alert | report by making the display part 10 light-emit with a light-emitting body. That is, the diver is surely released and the diver is surely notified that the information displayed on the display panel 11 has been updated. With these operations, if a diver notices after descending from the airplane, the display remains diving and the information in the atmosphere cannot be confirmed, and the change in the pressure applied to the body is displayed on the display unit. This is convenient because information until the active gas reaches an equilibrium state can be displayed.
[0058]
In the present embodiment, the release determination time 94 is applied for 10 minutes as with the dive end determination time 85 to improve the efficiency of the ROM 53 and the CPU 51 of the control unit 50. For example, a shorter time counter such as a determination time 88 may be used.
[0059]
Further, in the diving information processing apparatus 1 according to the present embodiment, the button switch A and the button switch B, which are specific operations different from selecting each mode of the operation unit 5 configured in the apparatus main body after time T23. The dive state can also be canceled by simultaneously pressing and simultaneously pressing the buttons simultaneously for a predetermined time. Thereby, when a diver confirms a malfunctioning state and wants to cancel the state immediately, it can be canceled by performing a specific operation. In addition, in the manufacturing process, for example, in the case of quality inspection in an environment where the atmospheric pressure is lowered by an atmospheric pressure adjusting device or the like, a malfunctioning diving state may occur, and at that time, the diving state can be canceled by a specific operation. Since it is configured, it is practical because it must be efficiently flowed to the next process. In addition, the environment where the atmospheric pressure is lowered refers to a state lower than the standard atmospheric pressure value at a point of 0 meters above sea level, for example, an atmospheric pressure value in an altitude region (up to about 2000 meters) where a person can live a normal life.
[0060]
Further, in this embodiment, it is determined that the malfunction is caused by the canceling means 93, the atmospheric pressure is measured by the atmospheric pressure measuring means 69, and the altitude rank determining means 95 is measured at the time T25 when the surface mode ST2 is displayed in the atmosphere. The determined altitude rank is compared with the previous altitude rank measured and determined at the previous time T21 by the altitude rank comparing means 96, and it is determined that there is a change to a lower altitude rank. As a result, even if there is a change in altitude, the state transitions to the surface mode ST2 indicating that the calculation of absorption / extraction of the inert gas in the body is performed, not just the time display state.
[0061]
That is, the display information of the malfunctioning display panel 11 is in the display state in water, but the ambient pressure at that time is always measured, and the calculation of absorption / exhaust of inert gas in the body is continued with the result, and malfunctions occur. In order to display the surface mode ST2 indicating that there has been a change in the amount of inert gas in the body, even after the release, it is possible to provide information by simulating the actual situation occurring in the body more closely. it can. Subsequent diving safety can be further improved, and the reliability of the display information when returning to the normal state can be improved.
[0062]
[Ascent Speed Monitoring Function] The diving information processing apparatus 1 is configured to monitor a diver's ascent speed during a diving mode, which will be described later. This function uses the functions of the CPU 51, ROM 53, RAM 54, and the like as follows. Realized as a configuration.
[0063]
That is, as shown in FIG. 5, the diving information processing apparatus 1 includes an ascent speed measuring means 75 that measures the ascent speed during ascent based on the measurement result of the time measuring means 68 and the measurement result of the water depth measuring means 61. Then, the measurement result of the ascent speed measuring means 75 is compared with a preset ascent speed upper limit 76, and when the current ascent speed is faster than the ascent speed upper limit 76, an ascent speed warning is issued. Violation warning means 77 is configured. The ascent speed measuring means 75 is realized as the calculation function of the CPU 51, ROM 53, and RAM 54 shown in FIG. 2, while the ascent speed violation warning means 77 is the CPU 51, ROM 53, RAM 54, sounding device 37, shown in FIG. This is realized as a function such as display on the vibration generator 38 and the liquid crystal display panel 11.
[0064]
In this embodiment, the ascent speed violation warning means 77 compares the ascent speed upper limit value for each water depth range stored in the ROM 53 as the ascent speed upper limit value 76 with the current ascent speed to determine the current ascent speed. If it is faster than the ascending speed upper limit 76 corresponding to the current water depth, the display on the liquid crystal display panel 11, the generation of an alarm sound from the sound reporting device 37, and the transmission of vibration from the vibration generating device 38 to the diver are used. The ascent speed violation warning is issued, and the ascent speed violation warning is stopped when the ascent speed returns to a state lower than the ascent speed upper limit 76. In this embodiment, the values shown below in each water depth range as the ascent rate upper limit 76 described above.
Current water depth measurement Ascent rate
Less than 1.8m No warning
1.8m to 5.9m 8m / min (about 0.8m / 6sec)
6.0m-17.9m 12m / min (about 1.2m / 6sec)
18.0m or more 16m / min (approximately 1.6m / 6 seconds)
Is set. That is, when the water depth is deep, the water pressure ratio before and after ascending per unit time is small even when ascending at the same ascending speed, and decompression sickness can be sufficiently prevented even if a relatively large ascending speed is allowed. On the other hand, when the water depth is shallow, the water pressure ratio before and after ascending per unit time is large even when ascending at the same ascending speed, so that only a relatively small ascending speed is allowed.
[0065]
In this embodiment, a water depth value per 6 seconds is stored in the ROM 53 as the ascent rate upper limit value. As shown in FIG. 7, the water depth is measured every second, but in order to prevent the movement of the arm wearing the diving information processing device 1 from affecting the ascent rate, the ascent rate measurement method is used. Is performed every 6 seconds, and the difference between the current water depth measurement value and the previous water depth measurement value 6 seconds ago is calculated, and this difference is regarded as the ascent rate and the above ascent rate (m / 6 seconds).
[0066]
Further, in the diving information processing apparatus 1 of this embodiment, diving information (various data such as diving date, diving time, maximum water depth, etc.) is stored and retained in the log data recording area 87 of the RAM 54. Although the means 85 is configured, the diving information recording means 85 records whether or not a warning is issued from the ascent speed violation warning means 77 in the log data recording area 87 as log data. Accordingly, whether or not the ascent rate has been violated during the current dive is reproduced and displayed later on the liquid crystal display panel 11. However, the diving information recording means 85 records in the log data recording area 87 as log data that there has been an ascent rate violation only when two or more warnings are issued continuously during one dive. Therefore, when the ascent speed is erroneously measured due to the movement of the diver's arm, the fact that the ascent speed violation has occurred is not recorded as log data.
[0067]
Moreover, in the information processing apparatus 1 for diving in this embodiment, since the water depth is higher than 1.5 m, it is treated as the first time when diving is continued for 3 minutes or more, so the water depth has risen to a position where the water depth is shallower than 1.5 m. Sometimes the water depth is assumed to be 0 m and the display is only 0 m. Therefore, when the ascent speed violation warning means 77 issues an ascent speed warning, even in such a shallow place, there is an arm movement of several centimeters where the water depth is slightly deeper than 1.5 m. If it is slightly shallower than 1.5 m and is regarded as 0 m, an ascent speed warning will be issued even though the ascent speed is maintained. As a result, divers question the reliability of the ascent rate warning. However, in this embodiment, when the current water depth is shallower than the predetermined value (1.5 m), the warning of the ascent rate violation is not issued regardless of the ascent rate. Therefore, since the above-mentioned unnatural warning is not issued, the reliability of the warning can be increased. That is, as shown in FIG. 7, for example, the depth of water measured last time during ascent is 1.8 m, and as shown by the solid line L11 from this position, the current depth measured after 6 seconds has elapsed is 1.5 m. If it is less than (water depth value for determining the end of diving), a warning that the ascent rate is violated is not issued.
[0068]
[Water Surface Rest Time Measurement Function] Thus, during diving, excessive nitrogen accumulates in the diver's body, so rapid ascent causes air bubbles in the body to cause decompression sickness. Similarly, after diving is completed, when the air pressure is drastically lowered when boarding an airplane with excessive nitrogen accumulated in the body and moving to a high place, nitrogen in the body becomes bubbles and decompression syndrome May cause. Therefore, after diving, the aircraft should be boarded after 24 hours, preferably 48 hours. Therefore, as shown in FIG. 5, in the diving information processing apparatus 1 according to the present embodiment, the elapsed time after the dive is finished based on the measurement result of the water depth measuring means 61 and the measurement result of the time measuring means 68 is stopped on the water surface. A water surface downtime measuring means 89 that measures time is configured. That is, the water surface downtime measuring means 89 uses the elapsed time from when the diving start / end determination means 81 determines that the dive is completed based on the measurement result of the water depth measurement means 61 and the measurement result of the timekeeping means 68 as the water surface downtime. measure.
[0069]
Therefore, after the diving is completed, if the water surface rest time obtained by the water surface rest time measuring means 89 is displayed on the liquid crystal display panel 11, after the diver has taken a sufficient rest time, excess nitrogen is discharged from the body. Can warn you to board an airplane.
[0070]
[Description of Each Mode] The diving information processing apparatus 1 configured as described above has modes (time mode ST1, surface mode ST2, planning mode ST3, setting mode ST4, diving mode) described below with reference to FIG. Used in ST5, log mode ST6).
[0071]
(Time mode ST1) The time mode ST1 is a function when the switch is not operated and the body nitrogen is in an equilibrium state and is carried on land. The liquid crystal display panel 11 has a current date 100, a current time 101, The altitude rank 103 (see FIG. 1 / If the altitude rank is rank 0, no mark is displayed) is displayed. The altitude rank 103 automatically measures the altitude of the current location and displays it in three ranks. The current time 101 informs that this display is the current time 101 by blinking a colon. For example, in the state shown in FIG. 8, it is displayed that it is 10:06 on December 5 at present.
[0072]
In addition, since the atmospheric pressure changes even when going up and down above and below the sea level, nitrogen melts into and discharges from the body regardless of whether or not you have dived in the past. Therefore, in the diving information processing apparatus 1 according to the present embodiment, even when the time mode ST1 is used, when such an altitude change occurs, the decompression calculation is automatically started and the display changes. That is, although illustration is omitted, the time after the altitude changes, the time until the body nitrogen reaches an equilibrium state, and the amount of nitrogen discharged or dissolved from the present until the equilibrium state is displayed.
[0073]
In this time mode ST1, when the switch A is pressed, the mode directly shifts to the planning mode ST3, and when the switch B is pressed, the mode directly shifts to the log mode ST6. If the switch A is pressed and then the switch B is kept pressed for 5 seconds while the switch A is being pressed, the mode shifts to the setting mode ST4.
[0074]
During this time mode ST1, when it is detected that water has entered through the incoming water monitoring switch 30 shown in FIGS. 1 and 2, a function check is automatically performed. It automatically shifts to mode ST5. At this time, if there is an abnormality in the sensor or the like, the fact is notified by an alarm sound from the sound reporting device 37 shown in FIG.
[0075]
In addition, during this time mode ST1,
(Surface Mode ST2) The diving information processing apparatus 1 automatically shifts to the surface mode ST2 when the incoming water monitoring switch 30 that has been conducted is in an insulated state after the diving is finished. This surface mode ST2 is a function for carrying on land until 48 hours have passed since the last dive. In this surface mode ST2, in addition to the data displayed in the time mode ST1 (current month and day 100, current time 101, altitude rank), an indication of changes in the amount of nitrogen in the body after the end of diving is displayed. That is, the time until the excess nitrogen dissolved in the body is discharged and the equilibrium state is reached is displayed as the body nitrogen discharging time 201. This in-vivo nitrogen excretion time 201 counts down the time until equilibrium is reached. No display is made after the body nitrogen excretion time 201 has reached 0:00. In addition, the elapsed time after diving is displayed as a water surface downtime 202, and this water surface downtime 202 starts counting when the last ascent of the water surface in the diving mode ST5 is shallower than 1.5 m and the dive ends. Then, after measuring up to 48 hours, there is no display. Accordingly, in the information processing apparatus 1 for diving, the surface mode ST2 is set on land until 48 hours have elapsed after the diving is completed, and thereafter, the time mode ST1 is set. In the state shown in FIG. 8, it is currently displayed as 11:58 on December 5, and 1 hour and 13 minutes have passed since the end of diving. In addition, it is displayed that the amount of nitrogen dissolved in the body by the diving performed so far corresponds to four in the in-vivo nitrogen graph 203, and the time from this state to the exhaust of excess nitrogen in the body to the equilibrium state (Natural nitrogen excretion time 201) is displayed as 10 hours 55 minutes, for example.
[0076]
In the surface mode ST2, when the switch A is pressed, the mode directly shifts to the planning mode ST3, and when the switch B is pressed, the mode directly shifts to the log mode ST6. If the switch A is pressed and then the switch B is kept pressed for 5 seconds while the switch A is being pressed, the mode shifts to the setting mode ST4.
[0077]
During this surface mode ST2, when it is detected that water has entered through the incoming water monitoring switch 30, a function check is automatically performed, and if it can be confirmed that the sensor or the like is normal, it automatically shifts to the diving mode ST5. . At this time, if there is an abnormality in the sensor or the like, the fact is notified by an alarm sound from the sound reporting device 37 or the like.
[0078]
(Setting Mode ST4) The setting mode ST4 is a function for setting ON / OFF of a warning alarm and setting of a safety level in addition to setting of the date 100 and the current time 101. In this setting mode ST4, the current date 100, year 106, current time 101, safety level (not shown), alarm ON / OFF (not shown), and altitude rank are displayed. The safety level can be set to two levels: a level at which normal decompression calculation is performed and a level at which decompression calculation is performed on the premise of moving to a place of an altitude rank that is one rank higher after diving. Alarm ON / OFF is a setting for setting whether or not various warning alarms are sounded from the sound report device 37. If the alarm is set to OFF, the alarm does not sound. Therefore, an apparatus that is particularly fatal, such as the information processing apparatus 1 for diving, can reduce the power consumed for the alarm, which is convenient.
[0079]
In this setting mode ST4, each time the switch A is pressed, the setting item is switched in the order of hour, second, minute, year, month, day, safety level, alarm ON / OFF, and the display of the corresponding portion flashes. At this time, when the switch B is pressed, the numerical value or character of the setting item changes, and when the switch B is kept pressed, the numerical value or character changes quickly. When the switch A is pressed while the alarm ON / OFF is blinking, the mode returns to the surface mode ST2 or the time mode ST1. If neither switch A or B is pressed for 1 to 2 minutes, the mode automatically returns to the surface mode ST2 or the time mode ST1.
[0080]
During this setting mode ST4, when it is detected that water has entered through the incoming water monitoring switch 30, the function is automatically checked, and if it can be confirmed that the sensor is normal, the diving mode ST5 is automatically entered. Transition. At this time, if there is an abnormality in the sensor or the like, the fact is notified by an alarm sound from the sound reporting device 37 or the like.
[0081]
(Planning mode ST3) The planning mode ST3 is a mode for inputting the maximum depth of the next dive to be performed and a guide for the dive time. In this mode, a water depth rank 301, a no-decompression diving possible time 302, a safety level, an altitude rank, a water surface pause time 202, and a body nitrogen graph 203 are displayed. The display of the rank of the water depth rank 301 is sequentially changed from the low rank to the high rank, and the no-decompression diving possible time 302 at each water depth rank 301 is displayed. For example, the depth rank 301 is switched every 5 seconds in the order of 9 m, 12 m, 15 m, 18 m, 21 m, 24 m, 27 m, 30 m, 33 m, 36 m, 39 m, 42 m, 45 m, and 48 m. At this time, if the mode is shifted from the time mode ST1 to the planning mode ST3, the plan is a first-time diving in which there is no excessive nitrogen accumulation in the body due to past diving, so the in-body nitrogen graph 203 is 0 and the water depth is 15 m. Sometimes the no-decompression dive possible time 302 is displayed as 66 minutes. Therefore, it can be seen that non-decompression diving is possible up to less than 66 minutes at a depth of 12 m or more and 15 m or less. On the other hand, if the transition is made from the surface mode ST2 to the planning mode ST3, it is a plan for repeated diving with excessive nitrogen accumulation in the body due to past diving, so the in-body nitrogen graph 203 is for four, If the maximum water depth is 15 m, the no-decompression diving possible time 302 is displayed as 49 minutes. Therefore, it can be seen that no-decompression diving is possible up to less than 49 minutes at a depth of 12 m or more and 15 m or less.
[0082]
In the planning mode ST3, if the switch A is kept pressed for 2 seconds or more until the water depth rank 301 is displayed as 48 m, the mode is directly shifted to the surface mode ST2. Further, after the water depth rank 301 is displayed as 48 m, the mode automatically shifts to the time mode ST1 or the surface mode ST2. Further, when there is no switch operation for a predetermined period, the mode automatically shifts to the surface mode ST2 or the time mode ST1, so that it is convenient because there is no need to perform the switch operation each time. On the other hand, when the switch B is pressed, the log mode ST6 is entered directly.
[0083]
Also, during the planning mode ST3, when it is detected that water has entered through the incoming water monitoring switch 30, a function check is automatically performed, and if it can be confirmed that the sensor or the like is normal, it automatically shifts to the diving mode ST5. To do. At this time, if there is an abnormality in the sensor or the like, the fact is notified by an alarm sound from the sound reporting device 37 or the like.
[0084]
(Diving mode ST5) The diving mode ST5 is a diving mode. In the no-decompression diving mode ST51, the current water depth 501, the diving time 502, the maximum water depth 503, the no-decompression diving possible time 302, the in-body nitrogen graph 203, the altitude This function displays information necessary for diving, such as rank. For example, in the state shown in FIG. 8, 12 minutes have passed since the start of diving and the water depth is 16.8 m, and it is displayed that no decompression diving can be continued for another 42 minutes at this water depth. . In addition, it is displayed that the maximum water depth up to the present is 20.0 m, and further, it is displayed that the current amount of nitrogen in the body is at a level where four marks of the body nitrogen graph 203 are lit.
[0085]
Here, the display of the current water depth 501 and the like may be blinked for the purpose of notifying the diver of the transition to the diving mode ST5. With this configuration, the fact that the processing in the diving mode ST5 is being performed can be visually recognized by the display on the liquid crystal display panel 11, so that the diver needs to worry about whether or not the diving mode ST5 is functioning normally. Not so convenient.
[0086]
In this diving mode ST5, as described above as the ascent rate monitoring function, rapid ascent causes decompression sickness, so the current ascent rate is obtained every 6 seconds and the ascent rate corresponding to the ascent rate and the current water depth is obtained. When the ascent rate determined this time is faster than the allowable ascent rate, an alarm sound (alarming rate violation warning) is emitted for 3 seconds at a frequency of 4 kHz from the sounding device 37, and the ascending rate is determined. In the liquid crystal display panel 11, the display of “SLOW” and the display of the current water depth are alternately blinked at a cycle of 1 Hz so as to alert the ascending speed violation. Then, when the ascent speed drops to a normal level, the ascent speed warning is stopped.
[0087]
In the diving mode ST5, when the switch A is pressed, the current time 101 and the current water temperature 504 are displayed as the current time display mode ST52 only while the switch A is pressed. In the state shown in FIG. 8, it is currently displayed that the time is 10:18 and the water temperature is 23.degree. As described above, when the switch operation to that effect is performed in the diving mode ST5, the current time 101 and the current water temperature are displayed only for a predetermined period, so that only data necessary for diving is always displayed within a small display surface. Even if configured (non-decompression diving mode ST51), the present time 101 and the like can be displayed as needed (current time display mode ST52), which is convenient. Moreover, even in the diving mode ST5 as described above, since the switch operation is used to switch the display, information that the diver wants to know can be displayed at an appropriate timing.
[0088]
During the diving mode ST5, when the water surface ascends to a depth of less than 1.5 m, the surface mode ST2 is processed when the diving is completed and the incoming water monitoring switch 30 that has been conducted is in an insulated state. Automatically transition to. During this time, the diving information recording means 78 shown in FIG. 3 sets the diving information (dive date) as one dive from the time when the water depth becomes 1.5 m or more until the last time when the water depth becomes 1.5 m or less. , Various data such as diving time and maximum water depth) are stored in the diving information recording means 78 (RAM 54). At the same time, if there are two or more consecutive ascent speed warnings during the current dive, this is also recorded as diving information.
[0089]
The diving information processing apparatus 1 of the present embodiment is configured on the premise of no decompression diving, but in the unlikely event of being in a decompression diving state, it notifies the diver with an alarm sound to that effect, It switches to the following decompression diving display mode ST53. That is, in the decompression diving display mode ST53, the current water depth 501, the diving time 502, the in-vivo nitrogen graph 203, the altitude rank, the decompression stop depth 505, the decompression stop time 506, and the total ascent time 507 are displayed. In the state shown in FIG. 8, it is displayed that 24 minutes have passed since the start of diving and the water depth is 29.5 m. In addition, because the amount of nitrogen in the body exceeds the maximum allowable value and is dangerous, an instruction is displayed to ascend to a depth of 3 m while maintaining a safe ascent rate and to stop decompression for 1 minute there. . In addition, an instruction to take at least 5 minutes to reach the water surface as a safe ascent speed is displayed. Further, an upward arrow 508 indicates that the amount of nitrogen in the body is currently increasing. Therefore, the diver flies after stopping the decompression based on the above-mentioned display contents, and while performing this decompression, a downward arrow 509 indicates that the amount of nitrogen in the body is decreasing.
[0090]
(Log mode ST6) When the switch B is pressed in the time mode ST1 or the surface mode ST2, the mode directly shifts to the log mode ST6. In the log mode ST6, as described above, the diving information recording unit 85 stores various diving information when the diving is deeper than 1.5 m in the diving mode ST5 for 3 minutes or more in the log data recording area 87. This is a function to display and play back what has been recorded. Such diving data is sequentially stored as log data for each dive, and a maximum of 10 log data is stored and retained. When diving further, older data is deleted in order, and the latest 10 data are always stored. Diving is remembered.
[0091]
In this log mode ST6, the log data is displayed on two screens that switch every 4 seconds. In the first screen ST61, a diving date 601, an average water depth 509, a diving start time 603, a diving end time 604, an altitude rank, and a body nitrogen graph 203 when the diving is finished are displayed. On the second screen ST62, the log number 605, which is the diving number for the day, the maximum water depth 608, the diving time 606, the water temperature 607 at the maximum water depth, the altitude rank, and the body nitrogen graph 203 when the diving is finished are displayed. . For example, in the state shown in FIG. 8, when the altitude rank is 0, the second dive on December 5 starts at 10:07 and ends at 10:45, and the 38-minute dive. Is displayed. In this diving, the average water depth is 14.6m, the maximum water depth is 26.0m, and the water temperature at the maximum water depth is 23 ° C. Is displayed. In this way, in the log mode ST6, various information is displayed while automatically switching between the two screens, so that a large amount of information can be displayed even if the display surface is small.
[0092]
Further, in the log mode ST6, when the speed violation warning has occurred twice or more during the currently displayed diving, for example, “SLOW” is displayed in the seventh display area 117 of the liquid crystal display panel 11 to that effect. To do.
[0093]
In this log mode ST6, every time the switch B is pressed, the new data is switched to the old data, and after the oldest data is displayed, the mode is shifted to the time mode ST1 or the surface mode ST2. Even when the switch B is continuously pressed for 2 seconds or more in the middle, the mode shifts to the time mode ST1 or the surface mode ST2. Further, even when neither of the switches A and B is pressed for 1 to 2 minutes, the mode automatically returns to the surface mode ST2 or the time mode ST1, so that it is convenient because there is no need to perform the switch operation each time. On the other hand, when the switch A is pressed, the mode directly shifts to the planning mode ST3. As described above, in the present embodiment, it is possible to perform direct transition between each mode by one switch operation among the planning mode ST3, the surface mode ST2, and the log mode ST6. Therefore, since the degree of freedom of the transition route to each mode is high, it is possible to directly shift between the planning mode ST3 and the log mode ST6 by one operation, so that the diving plan can be made while referring to the past diving records. It is convenient because it does not take time to stand.
[0094]
Also, during the log mode ST6, when it is detected that water has entered through the incoming water monitoring switch 30, a function check is automatically performed, and if it can be confirmed that the sensor is normal, it automatically shifts to the diving mode ST5. To do. At this time, if there is an abnormality in the sensor or the like, the fact is notified by an alarm sound from the sound reporting device 37 or the like.
[0095]
As described above, since any of the planning mode ST3, the surface mode ST2 (time mode ST1), the log mode ST6, and the setting mode ST4 can be automatically shifted to the diving mode ST5, for example, in the log mode ST6. Conveniently, after confirming past diving records or setting a diving plan in the planning mode ST3, diving can be started immediately. Moreover, since it can transfer to diving mode ST5 automatically when it has detected that water entered via the inflow monitoring switch 30 from any mode, for example, an operation such as switching to the diving mode manually is not required. That is, when there is no preparation for shifting to the diving mode ST5, there is no failure to know for the first time after diving that the shift to the diving mode ST5 has failed, so it is convenient. In addition, a function check is performed in advance when shifting to the diving mode ST5. When an abnormality is detected in the function check, the shift to the diving mode ST5 is automatically stopped and a notification to that effect is given. This is convenient because there is no failure to shift to the diving mode ST5 as it is, and an abnormality is immediately noticed. Moreover, since it does not fail to monitor the amount of inert gas accumulated in the body during diving, it is safe from the viewpoint of preventing decompression sickness.
[0096]
【The invention's effect】
As described above, according to the present invention, when a diving state is accidentally entered in the atmosphere, the misidentification state can be canceled, so that it is necessary for the diver (user) to perform troublesome operations for the cancellation. And not.
[0097]
Therefore, according to the present invention, after the diving state is accidentally entered in the atmosphere, it does not continue to be treated as a diving state, and automatically transitions to the information providing state in the atmosphere. Can provide information and has the effect of further improving the reliability. In addition, the diver (user) does not need annoying operation for release. Furthermore, since the release determination means is implemented by a program stored in the ROM 53, the circuit board mounting area can be reduced because it does not rely on conventional electronic circuit control, contributing to the downsizing and thinning of the device. To do.
[Brief description of the drawings]
FIG. 1A is a plan view showing a part of an apparatus main body and an arm band of an information processing apparatus for diving to which the present invention is applied, and FIG. 1B is a view of the apparatus main body viewed from 6 o'clock of a wristwatch. FIG.
FIG. 2 is a block diagram of the entire information processing apparatus for diving to which the present invention is applied.
FIG. 3 is a functional block diagram of safety information deriving means configured in an information processing apparatus for diving to which the present invention is applied.
FIG. 4 is an explanatory diagram showing the meaning of half-saturation time used when measuring the amount of nitrogen in the body in the information processing apparatus for diving to which the present invention is applied.
FIG. 5 is a functional block diagram showing a configuration for performing diving start / end determination, ascent speed violation warning, and water surface downtime measurement in the diving information processing apparatus to which the present invention is applied.
FIG. 6 is an explanatory diagram showing processing contents for determining start / end of diving in the diving information processing apparatus to which the present invention is applied;
FIG. 7 is an explanatory diagram showing the timing of ascent speed measurement performed for monitoring the ascent speed in the information processing apparatus for diving to which the present invention is applied and the reason why the ascent speed warning is not issued at a shallow place.
FIG. 8 is a flowchart for explaining each mode performed in the information processing apparatus for diving to which the present invention is applied.
FIG. 9 is an explanatory diagram showing processing details for determining the start / end of diving in a conventional information processing apparatus for diving.
FIG. 10 is a block diagram showing a configuration for determining release of a diving state in an information processing apparatus for diving to which the present invention is applied.
FIG. 11 is an explanatory diagram showing the processing timing and contents for determining the malfunctioning diving state and the release of the diving state in the information processing apparatus for diving to which the present invention is applied.
[Explanation of symbols]
1 ... Information processing device for diving
5 ... Operation part
10 ... Display section
11 ... Liquid crystal display panel
30 ... Incoming water monitoring switch
34 ... Pressure sensor
37 ... Reporting device
38 ... Vibration generator
50 ... Control unit
51 ... CPU
53 ... ROM
54 ... RAM
61 ... Water depth measuring means
68 ... Time measuring means
69 ... Pressure measuring means
81: Diving start / end determining means
82: Depth start depth value
83 ... Water depth value for determining the end of diving
84 ... Dive completion time
85 ... Diving information recording means
88 ... Dive time
89 ... Water surface downtime measuring means
93 ... Release means
94: Release judgment time
95 ... Altitude rank judgment means
96 ... Altitude rank comparison means
97 ... Altitude rank storage means
ST1 Time mode
ST2 ... Surface mode
ST3 ... Planning mode
ST5 ... Diving mode
ST6 ... Log mode

Claims (5)

A water depth measuring means and a pressure measuring means for measuring a water depth value during diving and a pressure value during non-diving by the same pressure sensor or a separate pressure sensor, a time measuring means for measuring a diving elapsed time, the water depth and A display unit for displaying various information such as diving elapsed time, safety information deriving means for calculating the amount of inert gas absorbed / exhausted into the body by the water depth value and the diving time,
An external input means for detecting the start and end of diving by a water detection sensor;
When the detection result of the external input means and the water depth value measured by the water depth measurement means are deeper than a preset water depth value for diving start determination, the diver is considered to be diving and the display state of the display unit is diving. A diving determination means for determining to shift to a mode, an information processing device for diving,
When the information processing apparatus for diving is used in the atmosphere, when water is attached to the water detection sensor and the display state shifts to the diving mode, a release means for releasing the display state is provided. An information processing device for diving. The information processing apparatus for diving according to claim 1,
Altitude rank determining means for determining each time a diver belongs to a predetermined altitude rank based on a periodic measurement result of the atmospheric pressure measuring means, and an altitude rank storing means for storing a determination result by the altitude rank determining means And
An information processing apparatus for diving characterized by continuing the calculation based on the transition of the altitude rank stored in the altitude rank storage means even when the canceling means is operated. The information processing apparatus for diving according to claim 1 or 2,
An information processing apparatus for diving having a plurality of operation units in addition to the external input unit, wherein the release unit operates when an input from the operation unit is performed.   4. The information processing apparatus for diving according to claim 1, further comprising a notification means for notifying that when the release means operates.   5. The diving information processing apparatus according to claim 1, wherein when the release means operates, recording by the diving information recording means is not performed.

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