JPH0219704Y2 - - Google Patents
Info
- Publication number
- JPH0219704Y2 JPH0219704Y2 JP1983004793U JP479383U JPH0219704Y2 JP H0219704 Y2 JPH0219704 Y2 JP H0219704Y2 JP 1983004793 U JP1983004793 U JP 1983004793U JP 479383 U JP479383 U JP 479383U JP H0219704 Y2 JPH0219704 Y2 JP H0219704Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- value
- display
- estimated value
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009529 body temperature measurement Methods 0.000 claims description 26
- 230000036760 body temperature Effects 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Description
【考案の詳細な説明】
〔考案の利用分野〕
本考案は、電子式の体温計に関するものであ
る。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an electronic thermometer.
感温素子から得られるアナログ電気信号をデイ
ジタル値にＡ／Ｄ変換し、検温結果を数字表示器
に表示する電子体温計が最近市場に多く見られる
ようになつてきた。電子体温計は、その名称“電
子”という言葉のもつイメージから、医学的知識
の不十分な一般ユーザーにおいては、高速検温が
できるという期待をいだいて見られる傾向があ
る。ところが、検温のプロセスとして、感温素子
の時定数、Ａ／Ｄ変換時間および生体系のもつ体
温伝達特性（たとえば、腋下検温におけるドロー
ダウンによる体表面温度の一時的降下など）など
があるので、正確な検温を行うためには、温度が
収束するまでに多くの時間を費やす必要がある。
そこで、温度が収束するまで待たないで、温度の
上昇特性から予測演算して短時間の検温を可能に
しているケースが見受けられる。上記の推測式検
温では、実際の体温との誤差をいかに少なくする
かという点が技術的な問題であり、これを解決す
るために種々の演算方式が検討されている。
2. Description of the Related Art Electronic thermometers that A/D convert an analog electrical signal obtained from a temperature sensing element into a digital value and display the temperature measurement result on a numerical display have recently become commonplace on the market. Due to the connotation of the word ``electronic'' in the name, electronic thermometers tend to be viewed with the expectation that they can quickly measure body temperature among general users with insufficient medical knowledge. However, the process of temperature measurement involves the time constant of the temperature sensing element, the A/D conversion time, and the body temperature transfer characteristics of the biological system (for example, the temporary drop in body surface temperature due to drawdown during armpit temperature measurement). In order to perform accurate temperature measurements, it is necessary to spend a lot of time until the temperature converges.
Therefore, there are cases in which temperature measurement is made possible in a short period of time by performing predictive calculations based on the temperature rise characteristics, without waiting until the temperature converges. In the above-mentioned temperature estimation method, the technical problem is how to reduce the error from the actual body temperature, and various calculation methods are being considered to solve this problem.
また、実測値と推測値の表示方法については、
検温前に切換スイツチによるどちらか一方を選択
する方式、検温初期の３〜５分程度を推測値表示
するなどの方式があるが、推測値から実測値に表
示が切換わつた時、瞬時に表示値が大きく変化
し、特に推測値が測定開始後15〜20分の温度収束
時の体温を示すため、表示値が低い値にステツプ
ダウンすることになる。そのため、電子体温計が
正常に動作しているにもかかわらず、表示値が大
幅に変動することにより、表示または、体温計が
正常に動作しているのかユーザーに疑問を与える
ことが多かつた。 For information on how to display actual measured values and estimated values,
There are methods such as selecting either one using a switch before taking the temperature, and methods that display the estimated value for about 3 to 5 minutes during the initial temperature measurement, but when the display changes from the estimated value to the actual value, it is displayed instantly. The value changes greatly, and especially because the estimated value indicates the body temperature when the temperature converges 15 to 20 minutes after the start of measurement, the displayed value will step down to a lower value. Therefore, even when the electronic thermometer is operating normally, the displayed value fluctuates significantly, which often leaves the user in doubt as to whether the display or the thermometer is operating normally.
本考案の目的は、上記使用者の検温に対する誤
解によるトラブルを少なくするためになされたも
ので、推測値実測値の表示切換えのときの表示値
の変化をなめらかにするものである。
The purpose of the present invention is to reduce the trouble caused by the user's misunderstanding of the temperature measurement, and to smooth the change in the displayed value when switching between the estimated value and the actual measured value.
上記目的を達成するため、本考案は温度上昇の
勾配、あるいは変化率などの温度上昇推移から演
算によつて被検者の体温を推測値として求める機
能と、検温値の最高実測値を記憶する機能と、前
記両者の検温データを表示する機能を有する電子
体温計において、検温途中における前記推測値と
実測した体温の最高実測値とを比較し、最高実測
値が推測値と等しいか大きくなつたことを判定し
て、最高実測値を表示するように、表示の切換え
を行う切換手段を設けることを特徴とする。
In order to achieve the above objective, the present invention has a function to calculate the subject's body temperature as an estimated value from temperature increase trends such as the temperature increase gradient or rate of change, and to memorize the highest actual temperature value. In an electronic thermometer having a function and a function of displaying temperature measurement data of both the above, the estimated value during the temperature measurement is compared with the highest actual value of the body temperature measured, and the highest actual value is equal to or larger than the estimated value. The present invention is characterized in that a switching means is provided for switching the display so that the highest actual measured value is displayed.
以下、本考案の一実施例を図面により説明す
る。
An embodiment of the present invention will be described below with reference to the drawings.
１はサーミスタとこれを保護するアルミ製のキ
ヤツプとから成る感温素子で、プラスチツク製中
空軸により本体に取付けてある。２は検温開始時
に動作する電源ON−OFF用スライドスイツチで
ある。３は検温結果および検温時間を表示する３
−１／２デイジツトの液晶表示器である。４はプ
ラスチツク製の本体ケースで前記感温素子１が中
空軸端に固着されている。また、本体ケース４の
内部には、第３図に示す測温回路７、計時回路１
０、表示切換処理回路１１などを有するICなど
を含む回路部品５と、本体ケース４内に着脱自在
の電源用小形乾電池６が収納してある。本体ケー
ス４の表面開口部には、前記表示器３およびスイ
ツチ２が操作性を考慮して配設されてある。７は
感温素子１の電気抵抗値から体温を得るための測
温回路で、リニア部と、４／Ｄ変換器と、クロツ
ク信号発生部より成り、一定周期ごとに体温測定
を実行する。８は最高値保持回路で、測温回路７
でデイジタル化された間欠的測定結果の最高実測
値を記憶している。９は推測値演算回路で測温回
路７の温度上昇推移から、従来の水銀式ガラス体
温計で３〜５分検温した場合の温度と合致した演
算を行う。１０は、検温時間を計時する計時回路
である。１１は、前記最高値保持回路８の体温デ
ータ、推測値演算回路９の体温データ、計数回路
１０の時間データのどちらを表示器３に表示させ
るかを弁別して切換える表示切換手段としての表
示切換処理回路で、クロツク周期により検温途中
における最高実測値表示と推測値表示の切換え、
体温と時間を交互に切換えるなどの処理を行う。 1 is a temperature sensing element consisting of a thermistor and an aluminum cap to protect it, which is attached to the main body by a hollow plastic shaft. 2 is a power ON/OFF slide switch that operates at the start of temperature measurement. 3 displays the temperature measurement result and temperature measurement time 3
-1/2 digit liquid crystal display. 4 is a main body case made of plastic, and the temperature sensing element 1 is fixed to the end of the hollow shaft. Also, inside the main body case 4, there is a temperature measuring circuit 7 and a timing circuit 1 shown in FIG.
0, a circuit component 5 including an IC having a display switching processing circuit 11, etc., and a removable small dry cell battery 6 for power supply are housed in the main body case 4. The display 3 and the switch 2 are arranged in the surface opening of the main body case 4 in consideration of operability. Reference numeral 7 denotes a temperature measuring circuit for obtaining body temperature from the electrical resistance value of the temperature sensing element 1, which is composed of a linear section, a 4/D converter, and a clock signal generating section, and executes body temperature measurement at regular intervals. 8 is the highest value holding circuit, and temperature measuring circuit 7
The highest actual value of the digitized intermittent measurement results is stored. Reference numeral 9 denotes an estimated value calculation circuit which performs a calculation based on the temperature rise trend of the temperature measurement circuit 7 to match the temperature when the temperature is measured for 3 to 5 minutes with a conventional mercury type glass thermometer. 10 is a timing circuit that measures the temperature measurement time. Reference numeral 11 denotes a display switching process as a display switching means that discriminates and switches which of the body temperature data of the maximum value holding circuit 8, the body temperature data of the estimated value calculation circuit 9, and the time data of the counting circuit 10 is to be displayed on the display 3. The circuit switches between displaying the highest measured value and displaying the estimated value during temperature measurement depending on the clock cycle.
Processes such as alternating body temperature and time are performed.
本実施例は以上述べたような構成なので、実際
の使用時の動作は次のようになる。第４図は検温
中の電子体温計の表示値と、最高値保持回路８の
もつ検温値を示すグラフで、縦軸に温度、横軸に
時間を目盛つてある。サーミスタ１は時間経過に
従い温度上昇し、電子体温計の表示はt1時間まで
逐次温度を表示する。表示は巨視的にはサーミス
タ温度のアナログ値をデイジタルとして離散値と
して処理しており、また周期的なサンプリングを
行つているため第４図のごとく段階状の温度表示
となる。t1は被検者の個人差等の特性により異な
るが20秒〜90秒である。t1にて温度上昇勾配が所
定の値になつたことを検出してその時の表示値
T1や勾配より推測値演算回路９で体温を算出し、
表示切換手段としての表示切換処理回路１１にて
表示を最高値保持回路８のもつ最高値（実測値）
T1から推測演算回路９のもつ推測値T2に切換え
る。さらに、表示切換処理回路９に内蔵されてい
る、検温途中における逐次最高値に変わる実測値
Ｔと推測値T2とを比較する比較器により、Ｔ
T2となる時間t2から表示する内容を推測値T2か
ら逐次最高実測値Ｔを表示する。推測値T2につ
いては、水銀式ガラス体温計の３〜５分間検温し
たときの結果と合致するようにしておき一般のユ
ーザーの検温に対する観念と一致させておき、３
〜５分以上で推測値から実測値に必ず切換わるよ
うになつている。 Since this embodiment has the configuration described above, the operation during actual use will be as follows. FIG. 4 is a graph showing the displayed value of the electronic thermometer during temperature measurement and the measured temperature value held by the maximum value holding circuit 8, with temperature on the vertical axis and time on the horizontal axis. The temperature of the thermistor 1 increases over time, and the electronic thermometer displays the temperature sequentially until t1 hour. Macroscopically, the analog value of the thermistor temperature is processed as a digital discrete value, and periodic sampling is performed, resulting in a stepwise temperature display as shown in FIG. t1 varies depending on characteristics such as individual differences among subjects, but is between 20 seconds and 90 seconds. Detects that the temperature rise gradient has reached the specified value at t 1 , and displays the displayed value at that time.
The estimated value calculation circuit 9 calculates the body temperature from T 1 and the slope,
The display switching processing circuit 11 serving as display switching means displays the maximum value (actually measured value) of the maximum value holding circuit 8.
Switching is made from T 1 to the estimated value T 2 held by the estimation calculation circuit 9. Furthermore, a comparator built into the display switching processing circuit 9 that compares the estimated value T2 with the actual measured value T, which successively changes to the highest value during the temperature measurement,
The contents to be displayed from time t 2 when T 2 is reached are sequentially displayed from the estimated value T 2 to the highest actual value T. Regarding the estimated value T2 , it should match the result obtained when temperature is measured for 3 to 5 minutes using a mercury type glass thermometer, and it should be consistent with the general user's idea of temperature measurement.
The estimated value is always switched to the actual value in 5 minutes or more.
また、第５図は体温表示と時間表示のタイムチ
ヤートを第４図と関連してグラフ化したものであ
る。実測値T2が求まるまでの時間t1までは、各時
点での実測値Ｔと時間ｔを交互に表示し、推定値
T2が求まつてから最高実測値に切換るまでのt1〜
t2の間は推測値T2を連続表示し、t2からは再び最
高実測値Ｔと時間ｔを表示する。また、体温と時
間とを交互に表示する際には、人体の目の視覚特
性により、体温表示と時間表示との間に適当な長
さの無表示期間を挿入して、切換えの際の見にく
さをなくしている。 Further, FIG. 5 is a graph of a time chart of body temperature display and time display in relation to FIG. 4. Until the time t 1 until the actual measurement value T 2 is determined, the actual measurement value T at each time point and the time t are displayed alternately, and the estimated value is
t 1 ~ from when T 2 is determined until switching to the highest actual measurement value
During t 2 , the estimated value T 2 is continuously displayed, and from t 2 onwards, the highest actual value T and time t are displayed again. Also, when displaying body temperature and time alternately, due to the visual characteristics of the human eye, a non-display period of an appropriate length should be inserted between the body temperature display and time display to make it difficult to see when switching. I'm losing my sense of purpose.
本考案の一実施例は以上に述べたような動作な
ので、外部からの切換えスイツチなどの操作によ
らず内部論理回路の処理により実測値と推測値と
の自動切換えができる。 Since the embodiment of the present invention operates as described above, it is possible to automatically switch between the measured value and the estimated value by processing the internal logic circuit, without relying on an external changeover switch or the like.
また、実測値と推測値の切換え時間を実測値と
推測値が等しく、またそれ以上になつた場合とす
ることにより、表示値が、推測値から実測値に切
換るときに、表示がステツプダウンすることがな
くなり、製品に対する不信感の解消が計れる。 In addition, by setting the switching time between the actual measured value and the estimated value as when the actual measured value and the estimated value are equal or greater, the display will step down when the displayed value switches from the estimated value to the actual measured value. This eliminates the need to do anything, and eliminates distrust towards the product.
さらに、推測方式と実測方式との切換えにユー
ザーがいちいち気を使わずに体温の測定ができる
ようになる。 Furthermore, users will be able to measure their body temperature without having to worry about switching between the estimation method and the actual measurement method.
本考案によれば、温度上昇の勾配、あるいは変
化率などの温度上昇推移から演算によつて被検者
の体温を推測値として求める機能と、検温値の最
高実測値を記憶する機能と、前記両者の検温デー
タを表示する機能を有する電子体温計において、
検温途中における前記推測値と実測した体温の最
高実測値とを比較し、最高実測値が推測値と等し
いか大きくなつたことを判定して、最高実測値を
表示するように、表示の切換えを行う切換手段を
設けることにより、検温値の表示を実測値・推測
値自動切換えを行い、切換え時期を実測値と推測
値が等しくなつたとき、もしくはそれ以上大きく
なつたことを表示切換手段が判定したときとする
ことにより、表示が外部操作なしに切換え可能と
なつた。
According to the present invention, the body temperature of the subject is calculated as an estimated value from the temperature increase transition such as the gradient of temperature increase or the rate of change, and the function of storing the highest actual temperature value; In an electronic thermometer that has the function of displaying temperature measurement data for both parties,
The estimated value during the temperature measurement is compared with the highest actual value of the body temperature measured, and it is determined that the highest actual value is equal to or larger than the estimated value, and the display is switched to display the highest actual value. By providing a switching means that automatically switches the display of the measured temperature value between the actual measured value and the estimated value, the display switching means determines when the switching time is reached when the actual measured value and the estimated value become equal or greater. By doing so, the display can be changed without external operation.
また、本考案によれば短時間で人体の目安体温
で充分なときは推測値を、正確な体温を知りたい
ときは、そのまま検温を続けて実測値を得ること
ができ、このときの表示値切換えによる値のステ
ツプダウンを防止でき表示に対するトラブルが防
止できるようになつた。 In addition, according to this invention, if the human body's standard body temperature is sufficient in a short time, you can get an estimated value, and if you want to know the exact body temperature, you can continue measuring the temperature and get the actual value, and the displayed value at this time. It is now possible to prevent step-downs in values due to switching and to prevent display problems.
図面はすべて本考案の一実施例で、第１図は全
体構成図、第２図は第１図の要部縦断面図、第３
図は回路構成のブロツク図、第４図は検温表示の
時間特性線図、第５図は表示のタイムチヤート図
である。
１……感温素子、２……スイツチ、３……表示
器、４……本体ケース、５……回路部品、６……
乾電池、７……測温回路、８……最高値保持回
路、９……推測値演算回路、１０……計時回路、
１１……表示切換処理回路。
The drawings are all examples of the present invention; Figure 1 is an overall configuration diagram, Figure 2 is a vertical sectional view of the main part of Figure 1, and Figure 3 is a longitudinal sectional view of the main part of Figure 1.
The figure is a block diagram of the circuit configuration, FIG. 4 is a time characteristic diagram of the temperature measurement display, and FIG. 5 is a time chart of the display. 1...Temperature sensing element, 2...Switch, 3...Display unit, 4...Main case, 5...Circuit components, 6...
Dry battery, 7... Temperature measurement circuit, 8... Maximum value holding circuit, 9... Estimated value calculation circuit, 10... Timing circuit,
11...Display switching processing circuit.
Claims (1)
昇推移から演算によつて被検者の体温を推測値と
して求める機能と、検温値の最高実測値を記憶す
る機能と、前記両者の検温データを表示する機能
を有する電子体温計において、検温途中における
前記推測値と実測した体温の最高実測値とを比較
し、最高実測値が推測値と等しいか大きくなつた
ことを判定して、最高実測値を表示するように、
表示の切換えを行う切換手段を設けたことを特徴
とする電子体温計。 A function that calculates the subject's body temperature as an estimated value by calculation from the temperature rise trend such as the gradient of temperature rise or rate of change, a function that stores the highest actual temperature value, and displays the temperature measurement data of both. In an electronic thermometer that has a function to perform temperature measurement, the estimated value during temperature measurement is compared with the highest actual value of the body temperature measured, and it is determined that the highest actual value is equal to or greater than the estimated value, and the highest actual value is displayed. As you do,
An electronic thermometer characterized by being provided with a switching means for switching the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP479383U JPS59112123U (en) | 1983-01-19 | 1983-01-19 | electronic thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP479383U JPS59112123U (en) | 1983-01-19 | 1983-01-19 | electronic thermometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59112123U JPS59112123U (en) | 1984-07-28 |
| JPH0219704Y2 true JPH0219704Y2 (en) | 1990-05-30 |
Family
ID=30136393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP479383U Granted JPS59112123U (en) | 1983-01-19 | 1983-01-19 | electronic thermometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59112123U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008064549A (en) * | 2006-09-06 | 2008-03-21 | Toyo Keiki Co Ltd | Microcomputer gas meter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107374A (en) * | 1978-02-10 | 1979-08-23 | Toshiba Corp | Electronic clinical thermometer |
| JPS5578221A (en) * | 1978-12-09 | 1980-06-12 | Toshiba Corp | Electronic thermometer |
-
1983
- 1983-01-19 JP JP479383U patent/JPS59112123U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107374A (en) * | 1978-02-10 | 1979-08-23 | Toshiba Corp | Electronic clinical thermometer |
| JPS5578221A (en) * | 1978-12-09 | 1980-06-12 | Toshiba Corp | Electronic thermometer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59112123U (en) | 1984-07-28 |
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