JP3930447B2 - Body fat percentage measuring apparatus and method - Google Patents

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となる。
【００３５】
この場合、水位上昇開始部分と終了部分は直線近似となるが、その演算誤差は従来のように浴槽２の内形状を加味しない演算に比較し、遙に誤差を低減することができ、精度の高い水位上昇Δｈ分の体積ΔＱを求めることができる。
【００３６】
ところで、この体積ΔＱには、未水没部分として例えば頭部等の体積が含まれておらず、体内残留空気量として、肺及び腸内の空気等が加わっている。このため、これら未測定部分や加算部分の体積は誤差となるので、情報入力器２０から入力された個別情報、例えば、身長、体重、年齢、性別等の情報から未水没部分の体積、呼吸時の肺及び腸内の残留空気量に相当する体積を演算し、推定値を求める。
【００３７】
例えば、頭部の体積の推定値は、次の通りである。
〔男標準値〕
頭部体積＝５×｛１＋体重÷（身長− 100）｝÷２ ・・・（５）
〔女標準値〕
頭部体積＝ 4.8×｛１＋体重÷（身長− 100）｝÷２ ・・・（６）
【００３８】
また、体内の残留空気量（体積）の推定値は、次の通りである。
〔男３０才未満〕
残留空気量＝ 0.4＋ 0.2×｛１−（30−年齢）÷20｝ ・・・（７）
〔男３０才以上〕
残留空気量＝ 0.4＋ 0.2×｛１−（年齢−30）÷70｝ ・・・（８）
〔女３０才未満〕
残留空気量＝0.45＋ 0.2×｛１−（30−年齢）÷20｝ ・・・（９）
〔女３０才以上〕
残留空気量＝0.45＋ 0.2×｛１−（年齢−30）÷70｝ ・・・（１０）
各係数は、統計的に求められた標準値である。
【００３９】
このように性別、体重、身長、年齢から上記関係式（５）〜（１０）によって求めた体積の２つの推定値（頭部体積は加算値、残留空気量の体積は減算値）と、既に測定している体積とを用いて人体の全体積を演算し、この全体積と体重等を演算情報に用いて体脂肪率が演算される。この体脂肪率は式（１１）より算出することができる。
【００４０】

【００４１】
式（１１）において、全体積（＝測定体積＋α）は全人体の体積、測定体積は水没部分の体積、即ち、上昇水位から求めた体積、αは（α＝未水没部分の体積−体内残留空気量）により演算された体積、即ち、推定値である。この推定値αは個別の演算値の他、予め演算した推定値や統計により与えられる推定値を用いてもよい。
【００４２】
このように、本発明の体脂肪率測定装置及びその方法では、人体の一部を水面から露出させた状態で測定するので、被測定者に不快感を与えることなく、簡易に体脂肪率を測定することができる。
【００４３】
次に、本発明の体脂肪率測定装置及びその方法の実施形態に係る給湯・追焚装置を図７を参照して説明する。図７は、給湯・追焚装置の一例を示している。
【００４４】
測定容器としての浴槽２には循環口５を通して給湯・追焚装置１側の注湯回路４が連結され、即ち、戻り管１３２及び往き管１３４が接続されている。この実施の形態では、給湯及び追焚きについて記載しているが、給湯・追焚装置１は、図示しないが、暖房端末に熱媒としての温水を供給する熱源としても用いることができる。戻り管１３２及び往き管１３４の他端には熱交換器１３６が接続されて浴槽２との循環管路が構成されている。戻り管１３２には浴槽２の湯水を循環させるポンプ１１、水位検出手段としての水位センサ８、浴槽水７の温度を検出する追焚温センサ１４０、往き管１３４側だけから注湯をさせるための二方弁１４３が設けられ、ポンプ１１には動作時、水流の有無を検知するポンプ水流スイッチが併設されている。また、入水管１３９より給水される水Ｗは熱交換器１４１により加熱され、出湯管１４２を介して戻り管１３２に供給される。即ち、入水管１３９、出湯管１４２、戻り管１３２及び往き管１３４より注湯回路４が構成され、出湯管１４２は途中で分岐されて外部に湯ＨＷが供給されている。この出湯管１４２には開閉弁６、浴槽２への注水量を検出する水量センサ１０、浴槽２からの湯水の逆流を防止する逆止弁１４４が設けられている。また、入水管１３９には給水温センサ１４６、熱交換器１４１での加熱水量を検出する給水量センサ１４８が設けられている。また、熱交換器１４１の出口側近傍の出湯管１４２には熱交換器１４１からの出湯温度を検出する出湯温センサ１５０が設けられている。
【００４５】
熱交換器１３６及び熱交換器１４１には加熱手段として個別にバーナ１５２、１５４が設けられており、バーナ１５２、１５４には燃料管１５６、１５８より燃料ガスＧが供給される。燃料管１５６には燃料元弁１６０、燃料開閉弁１６２が設けられ、燃料管１５８には燃料開閉弁１６３、燃料比例弁１６４が設けられ、燃料ガスＧの供給、供給遮断及びその供給量の調整が行われる。また、各バーナ１５２、１５４の燃焼面近傍には点火器１６６、１６８が設けられ、これら点火器１６６、１６８により必要に応じてバーナ１５２、１５４への着火が行われる。この給湯・追焚装置１には制御装置１２及びリモコン装置１７０が設置されており、これら制御装置１２及びリモコン装置１７０は有線、無線等の通信手段により連係している。
【００４６】
そして、図８に示すように、制御装置１２には制御演算部１７２が設けられ、制御演算部１７２には、制御、演算を司る中央処理装置であるＣＰＵ１１００、データを一時記憶させるＲＡＭ１１０２、制御プログラム又は動作データが格納されたＲＯＭ１１０４、身長、体重等の個別情報を停電等から防護するＥＥＰＲＯＭ１１０６、ＴＩＭＥＲ１１０８、電圧等のアナログ信号をデジタル信号に変換するアナログ・デジタル変換器（Ａ／Ｄ変換器）１１１０、入出力ポート１１１２が設けられている。Ａ／Ｄ変換器１１１０には検出回路１１１４を介して水位センサ８、給水温センサ１４６、出湯温センサ１５０、追焚温センサ１４０が接続されている。また、入出力ポート１１１２には検出回路１１１６、駆動回路１１１８、送信回路１１２０、受信回路１１２２、運転切替部１１２３、ＬＥＤ１１２４が接続されており、検出回路１１１６には水量センサ１０、給水量センサ１４８が接続され、駆動回路１１１８にはポンプ１１、開閉弁６、二方弁１４３、燃料元弁１６０、燃料比例弁１６４、燃料開閉弁１６２、１６３、点火器１６６、１６８が接続されている。運転切替部１１２３は、その設定の１つとして試運転モードの開始機能を割り当て、また、別の設定に体積試運転モードの開始機能を割り当て、他に給湯試運転や暖房運転等を開始する機能を有し、又は別個のスイッチを以て構成でき、制御装置１２上に設置することで、施工業者が必要に応じて操作できるものである。ＬＥＤ１１２４は、体積表示の表示等、情報提示手段である。
【００４７】
また、図９に示すように、リモコン装置１７０には制御演算部１１３０が設置され、この制御演算部１１３０はＣＰＵ１１３２、ＲＡＭ１１３４、ＲＯＭ１１３６、ＥＥＰＲＯＭ１１３８、入出力ポート１１４０から構成されている。入出力ポート１１４０には検出回路１１４２、駆動回路１１４４、音声合成回路１１４６、受信回路１１４８、送信回路１１５０が接続されている。受信回路１１４８は制御装置１２側の送信回路１１２０と有線又は無線により接続され、送信回路１１５０は制御装置１２側の受信回路１１２２と有線又は無線により接続されている。検出回路１１４２には、たし湯スイッチ１１５１、自動スイッチ１１５３、その他のぬるく（給水）、追焚き等の指令スイッチや水位、温度等の設定スイッチ等、各種スイッチからなる給湯・追焚操作スイッチ群１１５２や、体脂肪率の測定を指令する体脂肪率測定スイッチ群１１５４が接続されている。自動スイッチ１１５３には、例えば連続５秒間等の所定時間の連続押しで、試運転の開始スイッチの機能（試運転スイッチ２４）が割り当てられ、たし湯スイッチ１５１には、体積試運転の開始スイッチの機能（体積試運転スイッチ２５）が割り当てられ、例えば、連続５秒間等の所定時間の連続押しで体積試運転モードに移行するように設定される。また、駆動回路１１４４には液晶、蛍光表示管、ブラウン管、ＬＥＤ等からなるガイダンス手段としての表示器１１５６が接続されている。また、音声合成回路１１４６には音声データが格納された音声メモリ１１５８、低周波音声信号増幅のための増幅器１１６０、ガイダンス手段としてスピーカ、ブザー等からなる発声器１１６２が接続されている。
【００４８】
次に、図１０及び図１１は、リモコン装置１７０の外観部分を示している。このリモコン装置１７０の装置本体１１６４には、表示器１１５６、体脂肪スイッチ１１７０、上スイッチ１１７２、下スイッチ１１７４、自動スイッチ１１５３等が設置されて情報入力器２０を構成し、その前面部には開閉蓋１１７８が開閉可能に設けられている。体脂肪スイッチ１１７０は、体脂肪率の測定指令スイッチであり、浴槽２に給水され、その水位が設定水位ｈset に到達して設定温度まで沸き上げられたとき、その操作が有効となる。体脂肪スイッチ１１７０を約１秒間押すことにより、個別情報の入力画面に切り換えられる。さらに、体脂肪スイッチ１１７０を押すことにより、表示器１１５６の表示は、「登録番号」、「性別」、「身長」、「体重」、「年齢」等の入力画面に次々に切り換えることができる。図１２は表示器１１５６の初期表示を示している。そして、各入力項目は音声ガイダンスに従って、上スイッチ１１７２又は下スイッチ１１７４を押すことにより、表示器１１５６に表示された数値を切り換え、被測定者の身長、体重等と同一の数値を選択してＲＡＭ１１３４、ＥＥＰＲＯＭ１１３８に記憶することができる。また、記憶された各種個別情報は制御装置１２側のＲＡＭ１１０２、ＥＥＰＲＯＭ１１０６に転送される。各個別情報は制御装置１２、リモコン装置１７０のそれぞれのＥＥＰＲＯＭ１１０６、１１３８により停電等から防護される。個別情報を登録するための登録番号は、例えば０〜１０までの登録番号を選択して各種個別情報を記憶させることができる。プライバシーの保護のため、個別情報の秘匿手段として登録番号「０」をゲストモードとし、人体の体積、体脂肪率を測定、表示してから所定時間後に個別情報を自動消去することもできる。
【００４９】
また、浴槽２の湯張り動作が終了してから体脂肪スイッチ１１７０を軽く押すことにより体脂肪率測定動作に移行する。また、浴槽２の自動湯張り、沸上げは自動スイッチ１１５３を押すことにより実行される。
【００５０】
次に、体積試運転モードを図１３及び図１４を参照して説明する。図１３及び図１４は、体積試運転シーケンスのフローチャートを示している。Ａは、図１３及び図１４に示したフローチャート間の結合子である。
【００５１】
リモコン装置１７０の例えば、浴室リモコンのたし湯スイッチ１１５１を連続５秒押すと、体積試運転モードに入る（ステップＳ３１）。図５に示すフローチャートによって測定された単位水位上昇毎の水量データを、前もって自動試運転を行い、記憶しているか否かをチェックする（ステップＳ３２）。その水量データを記憶していなければ、体積計算できないので、「セット不良」異常停止にする。この場合、異常を表す点滅表示をする（ステップＳ３３）。
【００５２】
水量データの記憶があれば、所定時間だけポンプ１１を動作させて循環を行い（ステップＳ３４）、浴槽２の湯張り確認と、配管内のエアーパージを行う。所定時間の経過、例えば、３０秒の経過の後（ステップＳ３５）、ポンプ水流スイッチがオン（ＯＮ）（ステップＳ３６）しなければ、浴槽２に湯が張られていないので、「セット不良」異常停止にし、異常表示を行う（ステップＳ３７）。浴槽２に循環する湯があるとき、所定時間だけポンプ１１の運転を停止し（ステップＳ３８）、所定時間例えば、３０秒間の経過即ち、水位センサ８の検出値が安定するのを待つ（ステップＳ３９）。水位センサ８の検出値を所定時間毎例えば、０．５秒おきに取り込み、所定時間毎例えば、５秒間の平均が４ＳＬＢ（２ｍｍ相当）以内に安定したならば、その値を０点水位として記憶する（ステップＳ４０、ステップＳ４２）。所定時間例えば、２５秒間安定しない場合には、「セット不良」異常停止にする（ステップＳ４１）。
【００５３】
そして、開閉弁６を開け、所定量の注湯例えば、２４リットルの湯を注湯し、開閉弁６を閉じる（ステップＳ４３、ステップＳ４４及びステップＳ４５）。水位センサ８の検出値が安定化するのを待つため、所定時間例えば、３０秒間の経過の後（ステップＳ４６）、水位センサ８の値を所定時間毎例えば、０．５秒おきに取り込み、５秒間の平均が４ＳＬＢ（２ｍｍ相当）以内に安定したならば、その値と０点の値から既述の体積計算方法を用いて体積を算出する（ステップＳ４７、ステップＳ４９）。所定時間例えば、２５秒間安定しない場合には、「セット不良」異常停止とし、異常表示を行う（ステップＳ４８）。
【００５４】
算出された体積をリモコン装置１７０に表示する（ステップＳ５０）。この表示を所定量の注湯例えば、２４リットルと比較することにより、初期データが正常に記憶されたか確認することができる。再度たし湯スイッチ１１５１を押すか、体積を表示してから所定時間経過例えば、５分経過すると、体積試運転モードを終了する（ステップＳ５１）。
【００５５】
上記は体積試運転モードへの移行、体積表示はリモコン装置１７０で行っているが、運転切替部１１２３及びＬＥＤ１１２４を設けた制御装置１２を装着した製品においては、制御装置１２上の運転切替部１１２３に、体積試運転スイッチ等の設定を設けて、体積表示をＬＥＤ１１２４に表示することでも、体積試運転動作を実現することができる。
【００５６】
次に、この体脂肪率測定装置及びその方法の体脂肪率測定を図１５及び図１６に示すフローチャートを参照して説明する。Ａ、Ｂ及びＣは、図１５及び図１６に示したフローチャート間の結合子である。
【００５７】
自動スイッチ１１５３を押すと、自動湯張り動作が開始される。浴槽２への湯張り及び沸上げ動作が実行され、開閉弁６が開かれて浴槽２への給水が開始され、給水量センサ１４８により流水を検出すると、燃料元弁１６０、燃料開閉弁１６３及び燃料比例弁１６４が開かれ、点火器１６８の放電によってバーナ１５４の燃焼が開始される。浴槽２の水位は水位センサ８により検出され、浴槽２への給水量は水量センサ１０により検出される。戻り管１３２内が水で満たされる水量が注湯されると、水位検知が可能となるので、この時点で、二方弁１４３を閉止して水位センサ８により浴槽２の水位の監視を開始する。設定水位ｈset に到達すると、開閉弁６及び燃料比例弁１６４を閉じ、二方弁１４３を開き、ポンプ１１を動作させた後、燃料開閉弁１６２を開き、点火器１６６を放電させてバーナ１５２を燃焼させ、浴槽２内の湯水の沸上げを行う。
【００５８】
先ず、追焚温センサ１４０の検出温度が設定温度に到達したか否かにより湯張り動作が完了したか否かの判定を行う（ステップＳ６１）。湯張り動作が完了していなければ、体脂肪スイッチ１１７０からの命令をキャンセルする（ステップＳ６２）。湯張り動作が完了している場合には、ポンプ１１を停止し、燃料開閉弁１６２及び燃料元弁１６０を閉止し、バーナ１５２の燃焼を停止し、また、リモコン装置１７０の体脂肪スイッチ１１７０の入力を許可する（ステップＳ６３）。入浴可能な環境が設定されたとき、体脂肪率の測定が許可される。
【００５９】
体脂肪スイッチ１１７０が１秒以上押されて情報入力モードが選択されたか否かが判定される（ステップＳ６４）。情報入力モードが選択されたときには個別情報の入力方法が音声によってガイダンスされる（ステップＳ６５）。例えば、「あなたの登録番号を選択してください」と、告知されたとき、０〜１０の登録番号の何れかを選択し、上スイッチ１１７２又は下スイッチ１１７４を押し、再び、体脂肪スイッチ１１７０を押して登録番号を記憶させる。次に、「身長を選択して下さい」と、告知されたときには同様の操作で身長を選択する。次に、「体重を選択して下さい」、「年齢を選択して下さい」、「性別を選択して下さい」等の告知に従い、被測定者の個別情報が入力される。体脂肪スイッチ１１７０を入力することにより各個別情報の記憶処理を完了する（ステップＳ６６）。
【００６０】
情報入力モードが選択されない場合（ステップＳ６４）、体脂肪スイッチ１１７０が１秒未満押されて体積表示モードが選択されたか否かが判定される（ステップＳ６７）。体積表示モードが選択されたとき、浴槽２への給湯、給水、追焚動作等が実行されているときには強制的に停止させて、体積測定のための水位測定準備動作に移行する（ステップＳ６８）。続いて、被測定者に対し、「浴槽から出てお待ち下さい」等、音声による告知をし、被測定者に浴槽２外に出ることを促す（ステップＳ６９）。次に、浴槽２内の水位測定を開始し、被測定者が浴槽２外に出たことによる水位変動が所定時間内に所定レベルまで沈静化したか否かを判定する（ステップＳ７０）。水位変動が所定時間内に沈静化したときには、浴槽２の現在の水位を測定する（ステップＳ７１）。これが体積測定の基準となる水位であって、設定水位又はそれ以外の水位であり、換言すれば、被測定者が浴槽２外にいるときの浴槽２の水位である。また、所定時間内に水位変動が沈静化していなければ、体積表示モードをキャンセルする（ステップＳ７７）。
【００６１】
水位の測定が終了すると、「浴槽に静かにお入り下さい」等、音声による告知により、水面に変動を生じさせないように入浴を促す（ステップＳ７２）。次に、「あなたの登録番号を選択して下さい」等、音声により告知し、体脂肪スイッチ１１７０を押して個別情報が格納された登録番号を選択するように案内する（ステップＳ７３）。このとき、前述したゲストモードによる個別情報の入力を行うこともできる。被測定者の登録番号を確認し、登録された各個別情報を読み込む（ステップＳ７４）。
【００６２】
次に、「測定を始めます。体を動かさないで下さい。」等、音声による告知を行い、水位測定を開始する（ステップＳ７５）。浴槽２内の水位変動が所定時間内に所定レベルまで沈静化したか否かを判定する（ステップＳ７６）。所定時間内に水位変動が沈静化していないときには、体積測定が不能と判断して、体積表示モードをキャンセルさせ（ステップＳ７７）、ステップＳ６４に移行させる。また、所定時間内に水位が安定したとき、「３、２、１、ピピ」等の水位測定終了を予告する音声を発し（ステップＳ７８）、かつ水位の測定を記憶する（ステップＳ７９）。この水位測定終了を告知することにより被測定者は体積測定のための静止状態から開放される。
【００６３】
そして、被測定者が浴槽２に入る前の水位と被測定者が浴槽２に入ったときの上昇水位との差から被測定者の水没部分の体積を演算し、表示器１１５６に表示する。
【００６４】
次に、体脂肪率表示モードが選択されたか否かが判定される（ステップＳ８０）。所定時間内に体脂肪スイッチ１１７０の入力が確認されたときには、ステップＳ８１以下の体脂肪率表示モードに移行する。所定時間内に体脂肪スイッチ１１７０の入力がなければ、体積表示モードを終了させ（ステップＳ７７）、ステップＳ６４に移行する。また、所定時間経過したら体脂肪率表示モードに移行させてもよい。この場合、所定時間内に体脂肪スイッチ１１７０の入力が検出されたときには、体積表示モードを終了させてステップＳ６４に移行させてもよい。
【００６５】
被測定者の個別情報、例えば身体データから頭部体積を表す推定値と、通常呼吸時の肺及び腸内の残留空気量に相当する体積を表す推定値を式（５）〜（１０）を用いて演算する。この推定値については、予め設定した統計値等を推定値とし、その推定値を選択してもよい。
【００６６】
水没部分の体積と演算又は選択した推定値とを用いて人体の全体積を演算し（ステップＳ８１）、この全体積と体重等を用いて式（１１）より体脂肪率を演算し、表示器１１５６に表示する（ステップＳ８２）。被測定者が、測定時の深呼吸や動揺により測定誤差を懸念し、再測定を希望する場合がある。この再測定のため、浴槽２外に出ることは面倒であり、その場合には、ステップＳ８３に移行し、体脂肪率の再測定命令が成されたか否かを判定する。所定時間内に体脂肪スイッチ１１７０が押された場合には、ステップＳ７５に移行し、入浴状態における水位測定を再び実行して体積又は体脂肪率を表示させることができる。ステップＳ８３において、所定時間内に体脂肪スイッチ１１７０の入力が検出されなければ、体脂肪率表示モードを終了するとともに、ゲストモードが実行されているときには、登録番号「０」に記憶された個別情報を消去してステップＳ６４に移行する。なお、ゲストモードで登録された個別情報はステップＳ７６からステップＳ６４に移行するとき、ステップＳ８０からステップＳ６４に移行するときにも消去してもよい。
【００６７】
なお、本発明の体脂肪率測定装置及びその方法は図１５及び図１６に示すフローチャートに開示された制御動作に限定されるものではなく、任意のステップを選択して実行したり、あるいはステップの順序を変えて実行したり、また、任意のステップを省いて実行させてもよい。
【００６８】
また、本発明の体脂肪率測定方法において、体脂肪率測定は、浴槽水中に所定時間だけ人体を沈めたとき、水位の上昇開始点から上昇終了点までの体積を単位水位当たりの水量の加算により算出している。この場合、被測定者が呼吸をすると、人体の体積が変動して測定誤差を生じるおそれがあるが、所定時間だけ人体を浴槽水中に沈めて体積を測定すれば、呼吸による体積変動が平均化されるので、体積の真値が得られる。このため、被測定者に呼吸を止める等の無理を強いることなく、体脂肪率の測定精度を高めることができる。
【００６９】
また、浴槽２の内形状として段部２６が存在するものについて説明したが、本発明は、凹凸部のない浴槽でもよく、複雑な凹凸形状を持つものでもよく、アームレスト等の段部２６を持つものに限定されるものではない。
【００７０】
【発明の効果】
以上説明したように、本発明によれば、次の効果が得られる。
ａ 本発明の体脂肪率測定装置及びその方法によれば、浴槽の内形状が複雑であっても、その浴槽の水中に人体を可能な限り入れて体積測定を行うだけで正確な体脂肪率を測定することができるとともに、施工時に施工業者が、試運転を行い、体脂肪率を計算するのに必要な、初期データを記憶した後、実際に浴槽に入浴しなくても、初期データが正常に記憶されたことを確認することができる。しかも、実際に使用者が入浴し、体脂肪率を計ろうとしたときに、初期データの取込みが正常に行われていなかったために、体脂肪率の表示がおかしいというトラブルを回避することができる。
【００７１】
ｂ 制御手段に注湯体積の試運転測定制御動作の開始スイッチを備えた構成にすれば、施工時に開始スイッチを操作することで、容易に体脂肪率測定の試運転モードに移行させ、初期データの真偽を確認することができる。
【図面の簡単な説明】
【図１】本発明の実施形態に係る体脂肪率測定装置を示す図である。
【図２】浴槽を示す図である。
【図３】施工作業を示すフローチャートである。
【図４】水位の測定プログラムを示すフローチャートである。
【図５】浴槽形状を記憶するための試運転動作プログラムを示すフローチャートである。
【図６】浴槽水中の人体の体積の測定方法を示す図である。
【図７】本発明の実施形態に係る給湯・追焚装置の一例を示す図である。
【図８】制御装置を示すブロック図である。
【図９】リモコン装置を示すブロック図である。
【図１０】リモコン装置の外観構成を示す正面図である。
【図１１】開閉蓋を開いたリモコン装置の開閉蓋内の構成を示す正面図である。
【図１２】表示器を示す図である。
【図１３】体積試運転モードを示すフローチャートである。
【図１４】図１３に続く体積試運転モードを示すフローチャートである。
【図１５】体脂肪率測定動作を示すフローチャートである。
【図１６】図１５に続く体脂肪率測定動作を示すフローチャートである。
【符号の説明】
１ 給湯・追焚装置
２ 浴槽
４ 注湯回路
８ 水位センサ（水位検出手段）
１２ 制御装置（制御手段）
２２ 表示装置（情報提示手段）
２５ 体積試運転スイッチ（開始スイッチ）[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a body fat percentage measuring apparatus and method using a hot water supply / remedy apparatus used for hot water supply, bath water reheating or heating, and more particularly, trial operation for body fat percentage measurement, such as during construction. The present invention relates to a body fat percentage measuring apparatus and method that can confirm whether or not the basic data necessary for body fat percentage measurement is accurate.
[0002]
[Prior art]
A method by measuring the specific gravity of the human body is known for measuring the body fat percentage, which is an index of obesity. The body fat percentage based on this specific gravity measurement is obtained from the following calculation formula, for example.
Body fat percentage = (4.570 / body specific gravity-4.142) x 100 (1)
[0003]
In such a specific gravity measurement method, a human body is submerged in water, a volume is obtained from the submerged portion, a body specific gravity is obtained from the volume and body weight, and a body fat percentage is obtained from equation (1).
[0004]
The following patent documents exist in such a body fat percentage measuring apparatus and method.
[0005]
[Patent Document 1]
JP 2002-45349 A
[0006]
Patent Document 1 discloses a body fat percentage measurement method and its apparatus by specific gravity measurement using a bathtub.
[0007]
Therefore, if an existing bathtub or hot water supply / remedy device is used, this body fat percentage measurement can be easily performed.
[0008]
[Problems to be solved by the invention]
By the way, although the volume of the bathtub is known, it has various internal shapes such as a handrail and an armrest, and the relationship between the rise in water level and the amount of water is not usually linear because of this shape. Obtaining the amount and volume of water assuming a simple rise in water level causes an error between the actual volume and cannot obtain an accurate body fat percentage. For this reason, in the measurement of the body fat percentage, a trial operation for measuring the shape data of the bathtub in advance is performed, and the shape data is used as the basic data for the calculation of the body fat percentage. However, even if a trial run is performed, whether the shape data of the bathtub is correctly measured or not is to know whether the shape data is correct or not by comparing with the true body fat percentage. There was a problem that could not. Even the invention disclosed in Patent Document 1 does not solve this problem.
[0009]
Therefore, the present invention facilitates confirmation of whether or not the basic data necessary for body fat percentage measurement is accurate during trial operation, such as during construction, and improves the body fat percentage measurement accuracy. It is an object of the present invention to provide a measuring apparatus and method.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the body fat percentage measuring device of the present invention is a body fat percentage measuring device using a hot water supply / remedy device used for hot water supply, bath water replenishment or heating water heating. Water level detection means (water level sensor 8) for detecting the water level in the bathtub, Storage means (storage device 18) for storing the amount of water per unit water level of the bathtub; Detection of the water level detection means by pouring a certain amount of hot water into the bathtub through the pouring circuit of the hot water supply / remembrance device The amount of water corresponding to the water level is obtained from the storage means, The control means (control device 12) that calculates the pouring volume from the amount of change in the water level before and after pouring and generates a display output thereof, and the pouring volume for the fixed amount of pouring by the display output of the control means. It is set as the structure provided with the information presentation means (display device 22) which presents the information showing.
[0011]
According to such a configuration, the body fat percentage can be measured using an existing bathtub and a hot water supply / remedy device, and a fixed amount of hot water is poured into the bathtub at the time of construction, etc. It is easy to determine whether the basic data used to measure the body fat percentage is accurate by determining the pouring volume from the change in the water level before and after and displaying the pouring volume for a certain amount of pouring on the information presentation means. Can be confirmed.
[0012]
Moreover, in order to achieve the said objective, it is good also as a structure provided with the start switch (Volume trial run switch 25, the operation switching part 1123) of the trial flow measurement control operation of the pouring volume in the said control means. For example, there are products equipped with a function for two-way communication with a heating terminal in a heating / bath water heater, etc. In such a device, a function (LED 1124) for displaying an abnormal state is provided in the device body. Since it is installed, if a start switch for volume test run measurement control operation, such as a pushbutton switch, is installed on the control board, a certain amount of pouring operation can be started and the volume calculation result displayed by operating the switch. This can be done and the volume test run operation is simplified.
[0013]
In order to achieve the above object, the body fat percentage measuring method of the present invention is a body fat percentage measuring method using a hot water supply / remedy device used for hot water supply, bath water reheating or heating water heating. A process for detecting the water level in the bathtub 2; A process for storing the amount of water per unit water level of the bathtub in a storage means; , A certain amount of hot water is poured into the bathtub through the hot water supply circuit of the hot water supply / remedy device, Obtaining the amount of water corresponding to the detected water level of the bathtub from the storage means, It is configured to include a process for calculating the pouring volume from the amount of change in the water level before and after pouring and a process for presenting the pouring volume for a certain amount of pouring.
[0014]
Also by this body fat percentage measurement method, the same trial operation processing can be performed, and it can be easily confirmed whether or not the shape data of the bathtub necessary for measuring the body fat percentage is accurate.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a body fat percentage measuring apparatus according to an embodiment of the body fat percentage measuring apparatus and method of the present invention. This body fat percentage measuring apparatus is provided with a hot water supply / remedy apparatus 1 used for hot water supply, bath water tracking or heating water heating, and the bathtub 2 as a measurement container is necessary for body fat percentage measurement. Hot water HW or water W is poured from the circulation port 5 through the pouring circuit 4 of the hot water supply / remedy device 1 as water. In this case, the hot water poured through the circulation port 5 may be cold water. In this pouring circuit 4, as a water level detecting means for detecting the water level of the bathtub water 7 and an on-off valve 6 such as a pouring solenoid valve for controlling water pouring, a water level sensor for detecting the water level from the pressure because the water level appears in the pressure. 8. A water amount sensor 10 as a means for detecting the amount of water injected into the bathtub 2 and a pump 11 as a means for pumping hot water or water are provided.
[0016]
A control device 12 is provided as means for executing control for measuring the body fat percentage or opening / closing control of the on-off valve 6 based on detection information such as the detected water amount and the detected water level, and the control device 12 includes a water level sensor 8. , A detection circuit 14 such as a water amount sensor 10, a drive circuit 16 that drives the on-off valve 6, a pressure indicating the detected water level, each measurement data such as a detected water amount, a storage device 18 that stores input data, information necessary for calculation, etc. An information input device 20 for inputting information, a display device 22 for displaying information, a test operation switch 24, a volume test operation switch 25, and the like are connected. The storage device 18 can be composed of, for example, a RAM or an EEPROM that prevents memory loss due to a power failure. Further, the volume test run switch 25 is a switch for starting transition to the volume test run mode.
[0017]
A test run command is given to the control device 12 through the test run switch 24, and a volume test run command is given through the volume test run switch 25. Individual information of the person to be measured, for example, the registration number of the human body, height, Information such as weight, age, and sex is input. Further, the display device 22 visually or audibly displays guidance such as the measured body fat percentage and the measurement procedure of the body fat percentage.
[0018]
In the case of this embodiment, for example, as shown in FIG. 2, a bathtub 2 in which a step portion 26 is provided as a protruding portion such as an armrest on the inner wall is used.
[0019]
Next, construction work of this body fat percentage measuring apparatus and method will be described with reference to FIG. FIG. 3 shows the procedure of the construction work before the product installation work is performed, the product operation is confirmed, and the product is delivered to the user.
[0020]
The product is installed and installation work for connecting gas, water, and hot water pipes is performed (step S1). Next, hot water combustion or additional combustion operation is performed, gas pressure adjustment is performed to confirm the combustion relationship (step S2), and a bath automatic test operation described later is performed (step S3). After this automatic test run (step S3), before the volume test run, the bath water is drained to the actual water level, and the volume test run is prepared. And by this volume test run operation | movement, it is confirmed whether the water quantity for every unit water level rise is a normal value (step S4), and construction is completed.
[0021]
And in this body fat percentage measuring device and its method, control including trial run operation for memorizing the internal shape of a bathtub is performed. This measurement control will be described with reference to FIG. FIG. 4 shows an example of the measurement control.
[0022]
In this control, it is determined whether or not the internal shape storage trial operation of the bathtub 2 is performed (step S11). In this case, it is determined whether or not the trial operation switch 24 is operated. When the test operation switch 24 is ON, the internal shape of the bathtub 2 is shifted to the memory test operation mode (step S12). When the test operation switch 24 is OFF, the operation mode is shifted to the normal control operation mode (step S13). .
[0023]
In the memory test operation mode (step S12), the water level is detected together with water injection into the bathtub 2, and the water level detection is taken at a constant time interval, for example, 100 μs, and there is a relationship between the water level and the water amount. It is taken into the storage device 18.
[0024]
In the normal control operation mode (step S13), it is determined whether or not normal water level control or body fat percentage measurement is performed. In the case of normal water level control or body fat percentage measurement, the timing for taking in water level detection is constant. The water level is detected at a time interval that is coarser than the memory trial operation mode of the internal shape of the bathtub 2, for example, 0.5 s (step S14).
[0025]
And the trial run operation mode for memorize | storing the internal shape of the bathtub 2 is demonstrated with reference to FIG. FIG. 5 shows the process in the test run mode. Processing for obtaining the amount of water per unit water level is performed in this trial operation mode. By this process, the measurement error of the detected water amount (ie, volume) due to the inner shape of the bathtub 2 by the stepped portion 26 such as an armrest can be eliminated.
[0026]
It is determined whether or not the test operation switch 24 is turned on (step S21). When the test operation switch 24 is turned on, automatic pouring (automatic water injection) into the bathtub 2 is started (step S22). Since this automatic pouring is performed through the circulation port 5 of the bathtub 2, when the water pouring proceeds by continuous pouring, the circulation port 5 is submerged in the bath water 7. When the circulation port 5 is submerged, a pressure change indicating submergence is detected by the water level sensor 8, and the submergence water level of the circulation port 5 is set as the reference water level Lr, and it is determined whether or not it is equal to or higher than this reference water level (step S23).
[0027]
A predetermined unit water level obtained by continuous pouring, for example, the amount of water detected by the water amount sensor 10 is taken in every 1 cm of water level rise, and the water amount per unit water level is stored in the storage device 18, for example, RAM or EEPROM (step S24). . From the relationship between the unit water level and the amount of water, the amount of water corresponding to the unit water level is obtained according to the inner shape of the bathtub 2, so that the detected amount of water corresponds to the inner shape of the bathtub 2.
[0028]
Then, as a result of continuous water injection, it is determined whether or not the detected water level of the water level sensor 8 has changed, and when the change stops (step S25), the water level of the bathtub 2 reaches the upper limit Lm, and an overflow condition is detected. It will be. When the water level sensor 8 detects this overflow state, the automatic pouring (automatic pouring) is terminated (step S26).
[0029]
If the water level is measured every time the water level rises at a predetermined water level, for example, 1 cm, while water is continuously poured in this way, and the water level and the water level are stored in the storage device 18, the bathtub 2 can be determined from the relationship between the water level and the water level. Are stored in the storage device 18.
[0030]
Here, a method for measuring the body fat percentage of the human body using the inner shape of the bathtub 2 as calculation data will be described with reference to FIG. 6, for example. = Measurement of volume is required to determine (weight / total volume). In this volume measurement, since the water level is measured by submerging the human body, the on-off valve 6 is opened and water W is supplied from the pouring circuit 4 to the set water level hset. Next, when a human body is put into the bathtub water 7 of the bathtub 2, the water level rises by Δh, and the water amount ΔQ corresponding to the rising water level Δh is a submerged portion of the human body, and the volume of the submerged portion is calculated from the water amount ΔQ. can do.
[0031]
This volume can be determined from the relationship between the water level representing the internal shape of the bathtub 2 and the amount of water. Therefore, as shown in FIG. 6, the water level of the bath water 7 before the human body is submerged, that is, the water level at the start point of the water level rise is hs, and the water level after the human body is submerged, that is, the water level at the end point of the water level rise. If he is, the volume ΔQ of the water level rise Δh between the water levels hs and he can be obtained from the water amounts Q1 to Q7 at the unit water level h, and the water level is the fractional water level on the starting point side when the unit water level and the changed water level do not match If the volume of h1 is Q11 and the volume of the water level h2 at the end point side is Q77,
[0032]
Q11 = Q1 × (h−h1) / h (2)
Q77 = Q7 × h2 / h (3)
[0033]
Therefore, the volume ΔQ is an added value corresponding to the volume Q2-Q6 of each unit water level h of the water level rise Δh,
[0034]

It becomes.
[0035]
In this case, the water level rise start portion and end portion are linear approximations, but the calculation error can be greatly reduced compared to the calculation that does not take into account the inner shape of the bathtub 2 as in the prior art. A volume ΔQ corresponding to a high water level rise Δh can be obtained.
[0036]
By the way, this volume ΔQ does not include, for example, the volume of the head or the like as a non-submerged portion, and adds air in the lungs and intestines as the amount of air remaining in the body. For this reason, since the volume of the unmeasured part and the addition part becomes an error, the volume of the unsubmerged part and the time of breathing are obtained from individual information input from the information input device 20, for example, information such as height, weight, age, and sex. The volume corresponding to the amount of residual air in the lungs and intestines is calculated to obtain an estimated value.
[0037]
For example, the estimated value of the volume of the head is as follows.
[Male standard value]
Head volume = 5 × {1 + weight ÷ (height−100)} ÷ 2 (5)
[Female standard value]
Head volume = 4.8 x {1 + body weight / (height-100)} / 2 (6)
[0038]
Moreover, the estimated value of the residual air amount (volume) in the body is as follows.
[Male under 30 years old]
Residual air volume = 0.4 + 0.2 x {1-(30-age) ÷ 20} (7)
[Male over 30 years old]
Residual air volume = 0.4 + 0.2 x {1-(age-30) ÷ 70} (8)
[Women under 30 years old]
Residual air volume = 0.45 + 0.2 x {1-(30-age) ÷ 20} (9)
[Female 30 years and over]
Residual air volume = 0.45 + 0.2 x {1-(age -30) ÷ 70} (10)
Each coefficient is a standard value obtained statistically.
[0039]
Thus, two estimated values (the head volume is an addition value and the residual air volume is a subtraction value) of the volume obtained by the above relational expressions (5) to (10) from gender, weight, height, and age, and already The total volume of the human body is calculated using the volume being measured, and the body fat percentage is calculated using the total volume, weight, and the like as calculation information. This body fat percentage can be calculated from equation (11).
[0040]

[0041]
In equation (11), the total volume (= measured volume + α) is the volume of the whole human body, the measured volume is the volume of the submerged part, that is, the volume obtained from the rising water level, and α is (α = volume of the unsubmerged part−inside the body. It is a volume calculated by (air amount), that is, an estimated value. As the estimated value α, in addition to individual calculated values, estimated values calculated in advance or estimated values given by statistics may be used.
[0042]
Thus, in the body fat percentage measuring apparatus and method of the present invention, since the measurement is performed with a part of the human body exposed from the water surface, the body fat percentage can be easily calculated without causing discomfort to the subject. Can be measured.
[0043]
Next, a hot water supply / remedy apparatus according to an embodiment of the body fat percentage measuring apparatus and method of the present invention will be described with reference to FIG. FIG. 7 shows an example of a hot water supply / remembrance device.
[0044]
The bathtub 2 as a measurement container is connected to the hot water supply / remedy device 1 side pouring circuit 4 through the circulation port 5, that is, the return pipe 132 and the forward pipe 134 are connected. Although this embodiment describes hot water supply and reheating, although not shown, the hot water supply / reheating device 1 can also be used as a heat source for supplying hot water as a heat medium to the heating terminal. A heat exchanger 136 is connected to the other ends of the return pipe 132 and the forward pipe 134 to constitute a circulation pipe line with the bathtub 2. The return pipe 132 has a pump 11 for circulating hot water in the bathtub 2, a water level sensor 8 as water level detection means, a reheating temperature sensor 140 for detecting the temperature of the bathtub water 7, and pouring hot water only from the side of the outgoing pipe 134. A two-way valve 143 is provided, and the pump 11 is provided with a pump water flow switch that detects the presence or absence of a water flow during operation. Further, the water W supplied from the inlet pipe 139 is heated by the heat exchanger 141 and supplied to the return pipe 132 via the hot water outlet pipe 142. That is, the pouring circuit 4 is constituted by the water inlet pipe 139, the hot water outlet pipe 142, the return pipe 132, and the outgoing pipe 134. The hot water outlet pipe 142 is branched in the middle, and the hot water HW is supplied to the outside. The outlet pipe 142 is provided with an on-off valve 6, a water amount sensor 10 for detecting the amount of water injected into the bathtub 2, and a check valve 144 for preventing a back flow of hot water from the bathtub 2. Further, the water intake pipe 139 is provided with a water supply temperature sensor 146 and a water supply amount sensor 148 for detecting the amount of water heated by the heat exchanger 141. Further, a hot water temperature sensor 150 that detects the temperature of the hot water from the heat exchanger 141 is provided in the hot water pipe 142 near the outlet side of the heat exchanger 141.
[0045]
The heat exchanger 136 and the heat exchanger 141 are individually provided with burners 152 and 154 as heating means, and the fuel gas G is supplied to the burners 152 and 154 from the fuel pipes 156 and 158. The fuel pipe 156 is provided with a fuel main valve 160 and a fuel on-off valve 162, and the fuel pipe 158 is provided with a fuel on-off valve 163 and a fuel proportional valve 164 to supply, shut off, and adjust the supply amount of the fuel gas G. Is done. In addition, igniters 166 and 168 are provided in the vicinity of the combustion surfaces of the burners 152 and 154, and the igniters 166 and 168 ignite the burners 152 and 154 as necessary. The hot water supply / memorial device 1 is provided with a control device 12 and a remote control device 170, and the control device 12 and the remote control device 170 are linked by a communication means such as wired or wireless.
[0046]
As shown in FIG. 8, the control device 12 is provided with a control calculation unit 172. The control calculation unit 172 includes a CPU 1100 that is a central processing unit that controls and calculates, a RAM 1102 that temporarily stores data, and a control program. Alternatively, a ROM 1104 storing operation data, an EEPROM 1106 that protects individual information such as height and weight from a power failure or the like, a TIMER 1108, and an analog / digital converter (A / D converter) 1110 that converts an analog signal such as a voltage into a digital signal. , An input / output port 1112 is provided. The A / D converter 1110 is connected to a water level sensor 8, a feed water temperature sensor 146, a tapping water temperature sensor 150, and a reheating temperature sensor 140 via a detection circuit 1114. The input / output port 1112 is connected to a detection circuit 1116, a drive circuit 1118, a transmission circuit 1120, a reception circuit 1122, an operation switching unit 1123, and an LED 1124. The detection circuit 1116 includes a water amount sensor 10 and a water supply amount sensor 148. The pump 11, the on-off valve 6, the two-way valve 143, the fuel main valve 160, the fuel proportional valve 164, the fuel on-off valves 162 and 163, and the igniters 166 and 168 are connected to the drive circuit 1118. The operation switching unit 1123 has a function of starting a trial operation mode as one of the settings, assigning a start function of the volume trial operation mode to another setting, and starting a hot water supply test operation, a heating operation, and the like. Alternatively, it can be configured with a separate switch, and can be operated as necessary by a contractor by installing it on the control device 12. The LED 1124 is information presentation means such as a volume display.
[0047]
As shown in FIG. 9, the remote control device 170 is provided with a control calculation unit 1130, and the control calculation unit 1130 includes a CPU 1132, RAM 1134, ROM 1136, EEPROM 1138, and input / output port 1140. A detection circuit 1142, a drive circuit 1144, a voice synthesis circuit 1146, a reception circuit 1148, and a transmission circuit 1150 are connected to the input / output port 1140. The receiving circuit 1148 is connected to the transmitting circuit 1120 on the control device 12 side by wire or wirelessly, and the transmitting circuit 1150 is connected to the receiving circuit 1122 on the control device 12 side by wire or wirelessly. The detection circuit 1142 includes a hot water switch 1151, an automatic switch 1153, other lukewarm (water supply), a command switch for reheating, a setting switch for water level, temperature, etc. 1152 and a body fat percentage measurement switch group 1154 for instructing measurement of the body fat percentage are connected. The automatic switch 1153 is assigned with the function of the trial operation start switch (trial operation switch 24) by, for example, continuous pressing for a predetermined time such as 5 seconds, and the hot water switch 151 has the function of the volume trial operation start switch ( A volume test run switch 25) is assigned, and is set to shift to the volume test run mode by, for example, continuously pressing for a predetermined time such as 5 seconds. The driving circuit 1144 is connected to a display 1156 as a guidance means including a liquid crystal, a fluorescent display tube, a cathode ray tube, an LED and the like. The voice synthesis circuit 1146 is connected to a voice memory 1158 in which voice data is stored, an amplifier 1160 for amplifying a low-frequency voice signal, and a voice generator 1162 including a speaker and a buzzer as guidance means.
[0048]
Next, FIG. 10 and FIG. 11 show the external part of the remote control device 170. A display 1156, a body fat switch 1170, an upper switch 1172, a lower switch 1174, an automatic switch 1153, and the like are installed in the device main body 1164 of the remote control device 170 to constitute the information input device 20, and the front portion thereof is opened and closed. A lid 1178 is provided so as to be openable and closable. The body fat switch 1170 is a body fat percentage measurement command switch, and when the water level is supplied to the bathtub 2 and the water level reaches the set water level hset and is raised to the set temperature, the operation becomes effective. By pressing the body fat switch 1170 for about 1 second, the screen is switched to the individual information input screen. Further, by pressing the body fat switch 1170, the display on the display 1156 can be switched to input screens such as “registration number”, “sex”, “height”, “weight”, “age” and so on. FIG. 12 shows an initial display on the display 1156. Each input item is switched according to voice guidance by pressing the upper switch 1172 or the lower switch 1174 to switch the numerical value displayed on the display 1156, and selects the same numerical value as the height, weight, etc. of the person to be measured, and the RAM 1134. Can be stored in the EEPROM 1138. The stored individual information is transferred to the RAM 1102 and the EEPROM 1106 on the control device 12 side. Each individual information is protected from a power failure or the like by the respective EEPROMs 1106 and 1138 of the control device 12 and the remote control device 170. As the registration number for registering the individual information, for example, a registration number from 0 to 10 can be selected and various individual information can be stored. In order to protect the privacy, the registration number “0” can be set to the guest mode as a means for concealing the individual information, and the individual information can be automatically deleted after a predetermined time after measuring and displaying the volume and body fat percentage of the human body.
[0049]
Moreover, after the hot water filling operation of the bathtub 2 is finished, the body fat switch 1170 is lightly pressed to shift to the body fat percentage measurement operation. In addition, automatic filling and boiling of the bathtub 2 are performed by pressing an automatic switch 1153.
[0050]
Next, the volume trial operation mode will be described with reference to FIGS. 13 and 14 show flowcharts of the volume test run sequence. A is a connector between the flowcharts shown in FIGS. 13 and 14.
[0051]
When, for example, the hot water switch 1151 of the remote controller 170 of the remote controller 170 is continuously pressed for 5 seconds, the volume trial operation mode is entered (step S31). It is checked whether or not the water amount data for each unit water level rise measured by the flowchart shown in FIG. 5 is stored in advance by performing an automatic test run (step S32). If the water volume data is not stored, the volume cannot be calculated. In this case, a blinking display indicating abnormality is performed (step S33).
[0052]
If there is storage of the water amount data, the pump 11 is operated for a predetermined time to circulate (step S34), and the hot water filling of the bathtub 2 is confirmed and the air purge in the pipe is performed. If the pump water flow switch is not turned on (ON) (step S36) after elapse of a predetermined time, for example, 30 seconds (step S35), the bathtub 2 is not filled with hot water. Stop and display an abnormality (step S37). When there is hot water circulating in the bathtub 2, the operation of the pump 11 is stopped for a predetermined time (step S38), and waiting for a predetermined time, for example, 30 seconds, that is, until the detection value of the water level sensor 8 is stabilized (step S39). ). The detection value of the water level sensor 8 is taken every predetermined time, for example, every 0.5 seconds, and if the average for every predetermined time, for example, 5 seconds is stabilized within 4 SLB (equivalent to 2 mm), the value is stored as a zero point water level. (Step S40, Step S42). If it is not stable for a predetermined time, for example, 25 seconds, a “set failure” abnormal stop is set (step S41).
[0053]
Then, the on-off valve 6 is opened, a predetermined amount of hot water, for example, 24 liters of hot water is poured, and the on-off valve 6 is closed (step S43, step S44 and step S45). In order to wait for the detection value of the water level sensor 8 to stabilize, after the elapse of a predetermined time, for example, 30 seconds (step S46), the value of the water level sensor 8 is taken in every predetermined time, for example, every 0.5 seconds. If the average for the second is stabilized within 4 SLB (equivalent to 2 mm), the volume is calculated from the value and the value of 0 point using the volume calculation method described above (steps S47 and S49). If it is not stable for a predetermined time, for example, 25 seconds, “abnormal set” is abnormally stopped and an abnormality is displayed (step S48).
[0054]
The calculated volume is displayed on the remote controller 170 (step S50). By comparing this display with a predetermined amount of pouring, for example, 24 liters, it can be confirmed whether the initial data has been stored normally. The volume test run mode is terminated when the predetermined time elapses, for example, 5 minutes elapses after pressing the tap water switch 1151 again or displaying the volume (step S51).
[0055]
The above is the transition to the volume test operation mode, and the volume display is performed by the remote controller 170. However, in the product equipped with the operation switching unit 1123 and the control device 12 provided with the LED 1124, the operation switching unit 1123 on the control device 12 is displayed. The volume test run operation can also be realized by setting the volume test run switch or the like and displaying the volume display on the LED 1124.
[0056]
Next, the body fat percentage measurement of this body fat percentage measuring apparatus and method will be described with reference to the flowcharts shown in FIGS. A, B, and C are connectors between the flowcharts shown in FIGS. 15 and 16.
[0057]
When the automatic switch 1153 is pressed, an automatic filling operation is started. Hot water filling and boiling operation to the bathtub 2 are executed, the on-off valve 6 is opened and water supply to the bathtub 2 is started, and when flowing water is detected by the water supply amount sensor 148, the fuel source valve 160, the fuel on-off valve 163, The fuel proportional valve 164 is opened and combustion of the burner 154 is started by the discharge of the igniter 168. The water level of the bathtub 2 is detected by the water level sensor 8, and the amount of water supplied to the bathtub 2 is detected by the water amount sensor 10. When the amount of water that fills the return pipe 132 with water is poured, the water level can be detected. At this point, the two-way valve 143 is closed and the water level sensor 8 starts monitoring the water level of the bathtub 2. . When the set water level hset is reached, the on-off valve 6 and the fuel proportional valve 164 are closed, the two-way valve 143 is opened, the pump 11 is operated, the fuel on-off valve 162 is opened, the igniter 166 is discharged, and the burner 152 is discharged. Burn and boil hot water in bathtub 2.
[0058]
First, it is determined whether or not the hot water filling operation is completed depending on whether or not the temperature detected by the memory temperature sensor 140 has reached the set temperature (step S61). If the hot water filling operation has not been completed, the command from the body fat switch 1170 is canceled (step S62). When the hot water filling operation is completed, the pump 11 is stopped, the fuel on-off valve 162 and the fuel main valve 160 are closed, the combustion of the burner 152 is stopped, and the body fat switch 1170 of the remote control device 170 is turned off. Input is permitted (step S63). When the bathing environment is set, measurement of body fat percentage is allowed.
[0059]
It is determined whether or not the body fat switch 1170 has been pressed for 1 second or longer to select the information input mode (step S64). When the information input mode is selected, an individual information input method is guided by voice (step S65). For example, when “Please select your registration number” is notified, select one of the registration numbers from 0 to 10, press the upper switch 1172 or the lower switch 1174, and turn the body fat switch 1170 again. Press to store the registration number. Next, when “Please select your height” is notified, select your height by the same operation. Next, the individual information of the person to be measured is input in accordance with notifications such as “Please select your weight”, “Please select your age”, and “Please select your gender”. By inputting the body fat switch 1170, the storage process of each individual information is completed (step S66).
[0060]
When the information input mode is not selected (step S64), it is determined whether the body fat switch 1170 is pressed for less than 1 second and the volume display mode is selected (step S67). When the volume display mode is selected, when hot water supply, water supply, or a remedy operation for the bathtub 2 is being executed, the operation is forcibly stopped, and the process proceeds to a water level measurement preparation operation for volume measurement (step S68). . Subsequently, the person to be measured is notified by voice, such as “please wait out of the bathtub” to urge the person to be measured to go out of the bathtub 2 (step S69). Next, the water level measurement in the bathtub 2 is started, and it is determined whether or not the water level fluctuation due to the person to be measured going out of the bathtub 2 has settled down to a predetermined level within a predetermined time (step S70). When the water level fluctuation has settled within a predetermined time, the current water level of the bathtub 2 is measured (step S71). This is the water level serving as a reference for volume measurement, which is the set water level or other water level, in other words, the water level of the bathtub 2 when the person to be measured is outside the bathtub 2. If the water level fluctuation has not settled within the predetermined time, the volume display mode is canceled (step S77).
[0061]
When the measurement of the water level is completed, bathing is urged so as not to cause fluctuations in the water surface by voice notification such as “Please enter the bathtub gently” (step S72). Next, a notification such as “Please select your registration number” is given by voice, and the body fat switch 1170 is pressed to guide the user to select a registration number in which individual information is stored (step S73). At this time, it is also possible to input individual information in the guest mode described above. The registration number of the person to be measured is confirmed, and each registered individual information is read (step S74).
[0062]
Next, a voice notification such as “Start measurement. Do not move your body” is made, and water level measurement is started (step S75). It is determined whether or not the water level fluctuation in the bathtub 2 has settled down to a predetermined level within a predetermined time (step S76). When the fluctuation of the water level has not settled within the predetermined time, it is determined that the volume measurement is impossible, the volume display mode is canceled (step S77), and the process proceeds to step S64. Further, when the water level is stabilized within a predetermined time, a sound for notifying the end of the water level measurement such as “3, 2, 1, Phi” is issued (step S78), and the measurement of the water level is stored (step S79). By notifying the end of the water level measurement, the subject is released from the stationary state for volume measurement.
[0063]
Then, the volume of the submerged portion of the measurement subject is calculated from the difference between the water level before the measurement subject enters the bathtub 2 and the rising water level when the measurement subject enters the bathtub 2, and is displayed on the display 1156.
[0064]
Next, it is determined whether or not the body fat percentage display mode has been selected (step S80). When the input of the body fat switch 1170 is confirmed within a predetermined time, the process proceeds to the body fat percentage display mode after step S81. If there is no input from the body fat switch 1170 within the predetermined time, the volume display mode is terminated (step S77), and the process proceeds to step S64. Moreover, you may make it transfer to a body fat percentage display mode when predetermined time passes. In this case, when the input of the body fat switch 1170 is detected within a predetermined time, the volume display mode may be terminated and the process may proceed to step S64.
[0065]
Expressions (5) to (10) are used to calculate an estimated value representing the head volume from individual information of the subject, for example, body data, and an estimated value representing the volume corresponding to the residual air volume in the lungs and intestines during normal breathing. Use to calculate. For this estimated value, a preset statistical value or the like may be used as the estimated value, and the estimated value may be selected.
[0066]
The total volume of the human body is calculated using the volume of the submerged portion and the calculated or selected estimated value (step S81), the body fat percentage is calculated from the formula (11) using the total volume and the body weight, and the display. 1156 is displayed (step S82). The measurement subject may be concerned about measurement errors due to deep breathing or shaking during measurement, and may wish to remeasure. For this re-measurement, it is troublesome to go out of the bathtub 2, and in this case, the process proceeds to step S83 to determine whether or not a body fat percentage re-measurement command has been issued. If the body fat switch 1170 is pressed within the predetermined time, the process proceeds to step S75, and the water level measurement in the bathing state is executed again to display the volume or the body fat percentage. In step S83, if the input of the body fat switch 1170 is not detected within a predetermined time, the body fat percentage display mode is terminated, and when the guest mode is executed, the individual information stored in the registration number “0” And the process proceeds to step S64. The individual information registered in the guest mode may be deleted when the process proceeds from step S76 to step S64 or when the process proceeds from step S80 to step S64.
[0067]
The body fat percentage measuring apparatus and method according to the present invention are not limited to the control operation disclosed in the flowcharts shown in FIGS. 15 and 16, and can be executed by selecting any step or The order may be changed, or an arbitrary step may be omitted.
[0068]
In the body fat percentage measurement method of the present invention, the body fat percentage measurement is performed by adding the amount of water per unit water level to the volume from the rising start point to the rising end point when the human body is submerged in the bath water for a predetermined time. It is calculated by. In this case, if the subject breathes, the human body volume may fluctuate and cause measurement errors, but if the human body is submerged in the bath water for a predetermined time and the volume is measured, the volume fluctuation due to breathing is averaged. As a result, the true value of the volume is obtained. For this reason, the measurement accuracy of the body fat percentage can be enhanced without forcing the subject to stop breathing.
[0069]
Moreover, although what has the step part 26 exists as an internal shape of the bathtub 2, this invention may be a bathtub without an uneven | corrugated | grooved part, may have a complicated uneven | corrugated shape, and has the step parts 26, such as an armrest. It is not limited to things.
[0070]
【The invention's effect】
As described above, according to the present invention, the following effects can be obtained.
a According to the body fat percentage measuring apparatus and method of the present invention, even if the inner shape of the bathtub is complicated, an accurate body fat percentage can be obtained simply by placing the human body in the water of the bathtub as much as possible and performing volume measurement. After the initial data necessary for the trial run and calculation of the body fat percentage is memorized at the time of construction, the initial data is normal even without actually taking a bath. Can be confirmed. In addition, when the user actually takes a bath and tries to measure the body fat percentage, the initial data is not normally taken in, so the trouble that the body fat percentage is displayed incorrectly can be avoided.
[0071]
b If the control means is provided with a start switch for the trial run measurement control operation of the pouring volume, by operating the start switch during construction, it is possible to easily shift to the trial run mode for body fat percentage measurement and You can confirm fake.
[Brief description of the drawings]
FIG. 1 is a diagram showing a body fat percentage measuring apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing a bathtub.
FIG. 3 is a flowchart showing construction work.
FIG. 4 is a flowchart showing a water level measurement program.
FIG. 5 is a flowchart showing a test operation program for storing a bathtub shape.
FIG. 6 is a diagram showing a method for measuring the volume of a human body in bathtub water.
FIG. 7 is a diagram showing an example of a hot water supply / remembrance device according to an embodiment of the present invention.
FIG. 8 is a block diagram showing a control device.
FIG. 9 is a block diagram showing a remote control device.
FIG. 10 is a front view showing an external configuration of a remote control device.
FIG. 11 is a front view showing a configuration inside the opening / closing lid of the remote control device with the opening / closing lid opened.
FIG. 12 is a diagram showing a display device.
FIG. 13 is a flowchart showing a volume test operation mode.
FIG. 14 is a flowchart showing a volume test operation mode following FIG. 13;
FIG. 15 is a flowchart showing a body fat percentage measurement operation.
FIG. 16 is a flowchart showing a body fat percentage measurement operation following FIG.
[Explanation of symbols]
1 Hot water supply / memorial equipment
2 Bathtub
4 Pouring circuit
8 Water level sensor (water level detection means)
12 Control device (control means)
22 Display device (information presentation means)
25 Volume test run switch (start switch)

Claims (3)

A body fat percentage measuring device that uses a hot water supply / remedy device used for hot water supply, bath water pursuit or heating water heating,
Water level detection means for detecting the water level in the bathtub;
Storage means for storing the amount of water per unit water level of the bathtub;
A predetermined amount of hot water is poured into the bathtub through the pouring circuit of the hot water supply / remembrance device, the amount of water corresponding to the detected water level of the water level detecting means is obtained from the storage means, and the amount of water level change before and after pouring is poured. Control means for calculating the hot water volume and generating its display output;
Information presenting means for presenting information representing the pouring volume for the fixed amount of pouring by the display output of the control means;
A body fat percentage measuring apparatus comprising:   2. The body fat percentage measuring apparatus according to claim 1, wherein the control means includes a start switch for a trial run measurement control operation for a molten metal volume. A body fat percentage measurement method using a hot water supply / remedy device used for hot water supply, bath water pursuit or heating water heating,
Processing to detect the water level in the bathtub;
Processing to store the amount of water per unit water level of the bathtub in the storage means;
A certain amount of hot water is poured into the bathtub through the pouring circuit of the hot water supply / remedy device, the amount of water corresponding to the detected water level of the bathtub is obtained from the storage means, and the pouring volume from the amount of change in the water level before and after pouring Processing to calculate
A process of presenting the pouring volume for a certain amount of pouring;
A body fat percentage measuring method comprising:

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