CN103181757B - Electronic clinical thermometer - Google Patents
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- CN103181757B CN103181757B CN201210491590.3A CN201210491590A CN103181757B CN 103181757 B CN103181757 B CN 103181757B CN 201210491590 A CN201210491590 A CN 201210491590A CN 103181757 B CN103181757 B CN 103181757B
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Abstract
The present invention relates to electronic clinical thermometer.Gauger can not relied on to the operation of electronic clinical thermometer or measures ambient temperature etc., confirm the measuring tempeature stable close to equilibrium temperature when buzz notifies.Electronic clinical thermometer (10) has: temperature measurement unit (11); The memory element (21) of the temperature measured by temperature measurement unit (11) is stored by each sampling time; Based on the measuring tempeature stored in memory element (21), calculate the slope detection unit (23) of the slope of measuring tempeature by each sampling time; Carried out to the timing unit (24) of timing the slope calculated by slope detection unit (23) time that is below setting; More than the continuous setting of the timing time of timing unit (24), produce the stable detection judging unit (25) of notification signal; With control unit (12); The stipulated time of the timing time of timing unit (24) can be changed.
Description
Technical field
The present invention relates to electronic clinical thermometer, particularly relate to and detect the electronic clinical thermometer of inspection body temperature close to the state of equilibrium temperature exactly.
Background technology
For electronic clinical thermometer, be roughly divided into actual measurement formula clinical thermometer and prediction type clinical thermometer according to metering system, be roughly divided into situation about measuring in mouth and situation about measuring at axillary fossa according to measuring point.
Here, body temperature is the temperature of the central part of health, different from the temperature of the skin surface of the impact and the axillary fossa changed that are subject to ambient temperature.But if clinical thermometer is placed on oxter and closes tight oxter heating certain hour, then the temperature shown by clinical thermometer is close to " equilibrium temperature ".This equilibrium temperature is the temperature in portion of body centre, from heating, need more than 10 minutes to reaching equilibrium temperature.
That is, survey formula clinical thermometer in order to Measurement accuracy equilibrium temperature, substantially need the inspection body temperature time of more than 10 minutes.
And prediction type clinical thermometer is based on the temperature measured, predicts the above-mentioned equilibrium temperature of computing by forecast function built-in in clinical thermometer and carry out the clinical thermometer that shows, checking that the body temperature time is significantly shortened to 10 ~ 90 seconds.
As mentioned above, due in actual measurement formula clinical thermometer, measuring tempeature reaches equilibrium temperature needs the long time, so have the temperature in midway to rise become mild time point, sounding notifies to check that body temperature is close to the situation of the notice buzz of equilibrium temperature to gauger.Time average to buzz of giving notice from checking body temperature is 2 points ~ about 5 points.Gauger can know the temperature close to body temperature according to the displays temperature sounded when notifying buzz.In addition, in order to accurately check that body temperature proceeds to measure after also needing.
In actual measurement formula clinical thermometer as described above, buzz of giving notice when which type of condition becomes a technology point.
As the document disclosing this point, there is the electronic clinical thermometer of patent documentation 1.
In the electronic clinical thermometer of patent documentation 1, the measuring tempeature of temperature sensor is stored by each sampling timing, and the rate of change of measuring tempeature is calculated by each sampling timing, during the number of times that the rate of change below setting specifies continuously, be judged as restraining, namely having reached body temperature close to equilibrium temperature.
Specifically, will by each sampling timing 1,2 ..., n-1, n measure measuring tempeature be set to T(1), T(2) ..., T(n-1), T(n) when, be rate of change Δ by the difference definition of the measuring tempeature before the measuring tempeature under certain sampling timing and k sampling timing.That is,
Δ=T（n）-T（n-k）。
And, predetermine the decision content α of rate of change Δ judging convergence, when the hits of the Δ the meeting Δ≤α continuous stipulated number predetermined m time, be judged as restraining.
In patent documentation 1, also peak value is kept to measuring tempeature, only when each sampled value is larger than the peak value measured before this, just upgrade.
Patent documentation 1: Japanese Laid-Open Patent Publication 61-002029 publication
In order to accurately check body temperature under axillary fossa, needing the front end of clinical thermometer with the angle of body axes and clinical thermometer is about 30 ~ 45 ° be inserted into axillary fossa, and make the elbow of the hands clamping clinical thermometer close tight axillary fossa completely near flank, be fixed into clinical thermometer inertia in the measurements.
On the contrary, incorrect at initial laying method, or in the measurements gauger loose health and cause clinical thermometer to offset when, likely become incorrect at the body temperature of time display of notice buzz.
Such as, imagine clinical thermometer temporarily depart from from the accurate location of axillary fossa due to gauger's activity and get back to the situation of position accurately again.Figure 12 represent there occurs such state time the time variations of measuring tempeature.
Under these circumstances, usual measuring tempeature should be passed as the dotted line in figure, but passes as solid line owing to departing from.So, usually the A point of time t2 because slope becomes mild buzz of should giving notice, but owing to also calculating same slope at B point, so worry to give notice buzz at time t1.In this situation, be the T2 close to equilibrium temperature T0 relative to the measuring tempeature that usually should show together with notice buzz, and display deviate from the measuring tempeature T1 of equilibrium temperature T0.
Why this problem occurs is that even if when measuring tempeature curve departs from from common curve, the frequency condition m of convergence state is also fixed, as long as meet this condition at B point, buzz of just giving notice because in the above prior art.
For such problem, namely show inappropriate temperature when notifying and provide for this problem of inaccurate body temperature information to gauger, be not limited to the situation that clinical thermometer departs from from position accurately, incorrect and also can occur when making the rate of rise of measuring tempeature become mild relative to common curve in the method being put into axillary fossa.In addition, the temperature environment when measuring departs from from common temperature section to high direction or low direction, also can occur when the temperature difference of temperature environment and body temperature becomes large.
Such as, if due to the method being put into axillary fossa incorrect; be difficult to transmit the heat of body temperature from the skin surface of axillary fossa to clinical thermometer, so the rate of rise of measuring tempeature becomes mild relative to common curve.In this situation, if frequency condition m is fixed, then identical with during usual on measuring tempeature curve at rate of change part is given notice buzz, but now shown temperature becomes the temperature more departed from from equilibrium temperature.That is, not likely that very stable region have issued notice buzz on measuring tempeature curve, cause reporting inappropriate body temperature information to gauger.
This is also identical in following situation: owing to being subject to the low temperature affecting the skin surface of the axillary fossa also step-down of ambient temperature, the body temperature at the center of health is difficult to pass to temperature sensor by the skin surface of axillary fossa, causes measuring tempeature curve to become mild.
As mentioned above, in the prior art, when in the measurement of bldy temperature employing electronic clinical thermometer, gauger's moving body etc. and when causing the position of clinical thermometer there occurs departing from, or because the method being put into axillary fossa is incorrect and make the ascending curve of measuring tempeature become than time usually mild, or when measures ambient temperature deflection is than the high or low any one party usually envisioned, namely to sum up, when the ascending curve of measuring tempeature departs from from the curve of prediction usually, all in buzz this point of giving notice with appropriate temperature, there is room for improvement.
Summary of the invention
The present invention's background technology in view of the above completes, and its object is to, and can not rely on gauger to the operation of electronic clinical thermometer or measures ambient temperature etc., confirms stable measuring tempeature when buzzer notifies.
In order to solve above-mentioned problem, the feature of electronic clinical thermometer of the present invention is to have: the temperature measurement unit of measuring tempeature; The memory element of the temperature measured by temperature measurement unit is stored by each sampling timing; Based on the measuring tempeature stored in memory element, by the slope detection unit of the slope of each sampling timing computation and measurement temperature; It is the timing unit carrying out time of below the first setting predetermined timing to the slope calculated by slope detection unit; With more than the timing time of the timing unit continuous stipulated time predetermined, produce the stable detection judging unit of notification signal; Can the stipulated time be made to change based on the temperature stored in the temperature measured by temperature measurement unit or memory element.
According to the present invention; even if the situation, i.e. the measuring tempeature curve that make electronic clinical thermometer depart from from the accurate location of axillary fossa at gauger's moving body etc. depart from from the curve of prediction usually; also can making to send determination time of judging from standard value increase and decrease, namely carry out so-called protection to the timing that sends of notice buzz to notice buzz, confirming stable body temperature when notifying.
Preferred slope detection unit calculate from the measuring tempeature current sampling timing deducted the first sampling predetermined several before sampling timing under measuring tempeature and the temperature amplitude that obtains, when temperature amplitude is less than the second setting predetermined below the first setting, stable detection judging unit makes the stipulated time of timing time increase.
In addition, preferred timing unit also possesses the function of initializing making timing time turn back to original state, when temperature amplitude is less than the second setting, also makes the timing time of timing unit initialize.
In addition, be preferably based on measure start after have passed through the time predetermined after calculate, to have deducted from the measuring tempeature current sampling timing the second sampling predetermined several before sampling timing under measuring tempeature and the rate of change that obtains, the stipulated time is increased and decreased.
In this situation, though when measuring tempeature curve due to the laying method of axillary fossa incorrect and become mild, also can show stable temperature when notifying that buzz sends.
In addition, preferably also there is the table having predetermined the relation measured between ambient temperature when starting and the variable value of stipulated time, stable detection judging unit is reference table when measuring beginning, according to the ambient temperature that temperature measurement unit is measured, is increased and decreased the stipulated time.
Now, when the temperature difference of electronic clinical thermometer and ambient temperature is larger, stable temperature can be shown when notifying that buzz sends.In addition, when the temperature difference of electronic clinical thermometer and ambient temperature is less, the timing advance of notice buzz can be made, become the easy-to-use electronic clinical thermometer of gauger.
In addition, preferred slope calculates as the difference after the highest measurement temperature deducted from the measuring tempeature under current sampling timing in the measuring tempeature that was sampled before current sampling timing.
According to electronic clinical thermometer of the present invention, the operation or ambient temperature etc. clinical thermometer carried out by gauger can not relied on, confirm stable body temperature when buzzer notifies.
Accompanying drawing explanation
Fig. 1 is the outside drawing of the electronic clinical thermometer involved by the 1st embodiment of the present invention.
Fig. 2 is the functional block diagram of the electronic clinical thermometer involved by the 1st embodiment of the present invention.
Fig. 3 is the functional block diagram of the pith in Fig. 1.
Fig. 4 is the flow chart of the action of electronic clinical thermometer involved by the 1st embodiment of the present invention.
Fig. 5 is the figure of the detection departed from for illustration of the electronic clinical thermometer involved by the 1st embodiment of the present invention.
Fig. 6 is the figure of the measuring tempeature curve of the inappropriate situation of laying method for illustration of the electronic clinical thermometer involved by the 2nd embodiment of the present invention.
Fig. 7 is the figure detected for illustration of the rate of change of the electronic clinical thermometer involved by the 2nd embodiment of the present invention.
Fig. 8 is the flow chart of the action of electronic clinical thermometer involved by the 2nd embodiment of the present invention.
Fig. 9 is the figure of the change of the measuring tempeature curve caused because of ambient temperature for illustration of the electronic clinical thermometer involved by the 3rd embodiment of the present invention.
Figure 10 is the ambient temperature of the electronic clinical thermometer represented involved by the 3rd embodiment of the present invention and the table of the relation of convergence determination time.
Figure 11 is the flow chart of the action of electronic clinical thermometer involved by the 3rd embodiment of the present invention.
Figure 12 is the figure of the time variations of the measuring tempeature representing the situation that clinical thermometer departs from from the accurate location of axillary fossa.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.
First, be described with reference to the formation of Fig. 1 and Fig. 2 to electronic clinical thermometer 10 involved in the present invention.
In FIG, the outward appearance of electronic clinical thermometer 10 comprise clamped the temperature sensor 11a of take temperature by axillary fossa, the display part 14 of body temperature that display measurement goes out, the switch 16 power supply being set to ON/OFF, main body 19 and form.
With reference to Fig. 2, the hardware of electronic clinical thermometer 10 is formed by with lower component: check that body temperature is close to the buzzer 15 terminated, switch 16 and the CPU12 that is connected with these parts by temperature sensor 11a and the Temperature measuring section 11 formed by the A/D converter 11b that the analogue measurement signal from temperature sensor is converted to digital signal, display part 14, notice.
(the 1st embodiment)
Present embodiment is when electronic clinical thermometer 10 departs from from the accurate location of axillary fossa and is placed back accurate location, also can not the inappropriate timing shown in the B point of Figure 12 to give notice the mode of buzz.
With reference to Fig. 3 and Fig. 4, action during measurement of bldy temperature to electronic clinical thermometer 10 is described.Fig. 3 illustrates the main formation be associated with measurement of bldy temperature of the inside of CPU12.
In figure 3, the temperature measured with digital signal output temperature sensor 11a of Temperature measuring section 11.
Temperature reading part 20 reads in by each sampling timing the temperature that Temperature measuring section 11 measures.
Temperature storage part 21 is arranged at the inside of CPU12, the measured value that storing temperature reading part 20 reads in by each sampling timing, and exports the measured value required for slope calculations to slope measurement portion 23.
Slope detection portion 23 calculate for according to from temperature storage part 21 export measured value judge check body temperature convergence slope and for judging the deviation detection temperature amplitude whether temperature sensor 11a departs from from the appropriate position of axillary fossa.When the slope calculated does not represent the convergence checking body temperature, slope detection portion 23 exports the signal making the count resets of time counter 24.And slope detection portion 23 exports the slope and deviation detection temperature amplitude that calculate to stable detection judging part 25.Further, if up-to-date measured value is greatest measurement, then to greatest measurement storage part 22 outputting measurement value.
Greatest measurement storage part 22 stores the maximum of the temperature measured by each sampling timing.If after calculating slope by slope detection portion 23, the measured value of up-to-date sampling timing becomes maximum, then receive measured value to carry out from slope detection portion 23 upgrade and store.And if the greatest measurement stored is more than 32 DEG C, then greatest measurement storage part 22 exports the signal making the counting of time counter 24 open.
For time counter 24, measure sart point in time counting be reset, start for the signal from greatest measurement storage part 22 to judge the counting of the time of stable detection.And time counter 24 exports counting to stable detection judging part 25.Time counter 24 according to the reset signal exported from slope detection portion 23 by count resets.
Stable detection judging part 25 judges to check whether body temperature is stablized based on the counting of the slope calculated by slope detection portion 23 and time counter 24.Now, stable detection judging part 25, based on the deviation detection temperature amplitude calculated by slope detection portion 23, changes for judging the convergence determination time checking that whether body temperature is stable.And check that body temperature is stablized if be judged to be, then stable detection judging part 25 exports count end signal to buzzer control part 26.
Buzzer control part 26, from stable detection judging part 25 count pick up end signal, makes buzzer 15 pipe.
Next, notify that the formation that buzz sends in inappropriate timing is described to preventing in present embodiment.
The time (interval) that temperature reading part 20 reads the sampling timing of measured value can set arbitrarily.Be set to 1 second in the present embodiment, the measuring tempeature for " i " individual sampling timing is denoted as T(i).That is, T(i) be measuring tempeature after starting to have measured i second.
Measuring tempeature under sampling timing n is set to T(n), the greatest measurement measured before sampling timing n is set to Tmax, is set to T(n-j than the measured value under the sampling timing of sampling timing n forward j second), definition as follows is carried out to required parameter.
" slope " g:g=T(n)-Tmax (DEG C)
" convergence decision content " α (DEG C)
" convergence determination time " t0(second)
" deviation detection temperature amplitude " Δ 1: Δ 1=T(n)-T(n-j) (DEG C)
" deviation detection decision content " β (DEG C)
Here, " deviation detection temperature amplitude ", " deviation detection decision content " " departing from " refer to that the temperature sensor 11a of electronic clinical thermometer departs from from the appropriate position of axillary fossa.
In the present embodiment, to keep the measured value T(n under the measured value Tmax of peak value and sampling timing) difference carry out detected slope g, this slope g become the certain value predetermined namely restrain within decision content α time, be judged as that measuring tempeature curve tends towards stability.That is, in the present embodiment, slope g is used as the temperature amplitude being used for the convergence judging inspection body temperature.
The value of α can set arbitrarily, but below the arithmetic point being set to 0.00 DEG C (for comparing T(n) and Tmax in the present embodiment 2 judge the value not having to rise).
Convergence determination time t0 is stable detection judging part 25 for judging the gate time of the stable time counter 24 checking body temperature, and the time remaining t0 of g≤0.00 is sent timing as notice buzz second.The value of t0 can set arbitrarily, but is set to 8 seconds in the present embodiment.
Wherein, if g > 0.00 sets up, then send reset signal to time counter 24, the time counter 24 that have received this reset signal initializes counting.That is, be judged as that slope g does not also become mild and count resets that is that continue time counter 24, or detect and temporarily become mild but be judged as also unstable and reset.That is, as long as g≤0.00 does not have continuous 8 seconds, always then the counting of time counter 24 is just reset.
In the present embodiment, also there is following characteristics: imported for preventing the deviation detection temperature amplitude Δ 1 notifying that buzz sends in inappropriate timing.If that is, in principle g≤0.00 continue 8 seconds, buzz of giving notice, if but detected by parameter Δ 1 in the counting of time counter 24 and depart from, then CPU12 makes the count resets of time counter 24, and 1 is added to t0, that is, convergence determination time t0 was extended to 9 seconds from 8 seconds.
The value of the j under deviation detection temperature amplitude Δ 1 can set arbitrarily, but establishes j=8 in the present embodiment.In addition, deviation detection decision content β also can be set appropriately, and in the present embodiment β is set to 0.00, if Δ 1 < β=0.00 is set up, is then judged as there occurs departing from.
Fig. 4 is the flow chart of the action that electronic clinical thermometer 10 is described.
If the power supply of electronic clinical thermometer 10 is connected, then first CPU12 makes the count resets (S402) of time counter 24.
Next, temperature reading part 20 reads in the temperature (S404) measured by Temperature measuring section 11 by each sampling timing.
The measuring tempeature of each sampling timing is stored in the memorizer in CPU (S406) by temperature storage part 21.
The slope detection portion 23 of CPU12 calculates slope g and deviation detection temperature amplitude Δ 1(S408).
For the greatest measurement storage part 22 of CPU12, when the measured value of sampling timing up-to-date after detecting slope is maximum, greatest measurement storage part 22 upgrades maximum of T max(S410).
Time counter 24 judges counting whether as ON, in the situation (S412: "No") being counted as OFF of time counter 24, enters into S414, judges Tmax that greatest measurement storage part 22 stores whether as more than 32 DEG C (S414).When the Tmax that greatest measurement storage part 22 stores is more than 32 DEG C (S414: "Yes"), counting is switched to ON(S418 by time counter 24), the Tmax(S420 that the display update of display part 14 stores for greatest measurement storage part 22 by display control unit (not shown)).
On the other hand, when the Tmax that greatest measurement storage part 22 in S414 stores is less than 32 DEG C (S414: "No"), display control unit makes being shown as " L " (S416) and turning back to S404 of display part 14.
When in S412 time counter 24 be counted as ON time (S412: "Yes"), enter into S420, the Tmax that the display update of display part 14 stores for greatest measurement storage part 22 by display control unit.
Next, for the slope g calculated, slope detection portion 23 judges whether g≤0.00 sets up (S422).In the invalid situation in g≤0.00 (S422: "No"), turning back to S402, when setting up (S422: "Yes"), being judged as that measuring tempeature slope of a curve g just tends towards stability and enters into next step.The peak value of the 23 pairs of measuring tempeature in slope detection portion rises or does not change within certain amplitude and monitors.
Then, slope detection portion 23 judges whether Δ 1 < 0.00 sets up (S424).When Δ 1 < 0.00 sets up (S424: "Yes"), be judged as there occurs and depart from, t0 is extended 1 second (S426), then turn back to the count resets that S402 makes time counter 24.
On the other hand, if Δ 1 >=0.00 is set up (S424: "No"), namely do not detected and depart from the s 424, then enter into S428, the stable detection judging part 25 of CPU12 judges whether the counting of time counter 24 reaches t0.
If be judged as 8 seconds being counted as convergence determination time t0 of time counter 24 by stable detection judging part 25 and terminate (S428: "Yes"), then stable detection judging part 25 pairs of buzzer control parts 26 send buzz output signal, and the buzzer control part 26 that have received this signal makes buzzer 15 pipe (S430).As described above, to give notice buzz.
At the end of counting not in S428 (S428: "No"), the counting of time counter 24 is added 1(S432), and turn back to S404, again carry out reading in of measured temperature, repeatedly carry out the action from S404.
Here, if g > 0.00 sets up (S422: "No") in the counting of time counter 24, then turn back to S402, the counting of time counter 24 is reset, and repeatedly carries out the action from the reading of the measured value of S404.
In addition, after have issued notice buzz, as long as gauger does not take out clinical thermometer from axillary fossa, then electronic clinical thermometer 10 can continue measuring tempeature.
Following with reference to Fig. 5, the Cleaning Principle departed from present embodiment and its effect are described.
Fig. 5 is by the figure after amplifying near the B point in Figure 12, illustrates sampling timing n, measuring tempeature T (n) at n-1, n-2, n-8, n-9, n-10 place, T (n-1), T (n-2), T (n-8), T (n-9), T (n-10).Because the accurate location of electronic clinical thermometer 10 from axillary fossa departs from, so the mild ascending curve that experiment curv never departs from from the accurate location of axillary fossa and measures departs from, after temporarily becoming maximum, decline near sampling timing n-2.
Deviation detection temperature amplitude Δ 1 is again pointed out together with deviation detection decision content.In the present embodiment, due to setting j=8, so be judged as detecting when following formula is set up and depart from.
Δ1=T（n）-T（n-8）＜0.00
Here, according to Fig. 5, have passed through the T(n-1 at sampling timing n-1 place)-T(n-9) after > 0.00, T(n is become at sampling timing n)-T(n-8) < 0.00, Δ 1 < 0.00, i.e. Δ 1 < β set up, and are judged as that electronic clinical thermometer 10 there occurs and depart from.That is, for deviation detection temperature amplitude Δ 1, detect because electronic clinical thermometer 10 departs from from the appropriate position of axillary fossa and be judged as that the position of electronic clinical thermometer 10 is departed from the region that the measuring tempeature curve risen declines.
If detect departing from of electronic clinical thermometer 10 by above principle, then as previously mentioned, CPU12 adds 1 to convergence determination time t0 and is become 9 seconds, then makes the count resets of time counter 24.By extending convergence determination time t0, be altered to slope g on measuring tempeature curve at milder region convergence.Be that all the condition of convergence becomes harsher by this change, convergence timing is more to the rear.Therefore, it is possible to during preventing after sampling timing n to reverting to the measuring tempeature curve of usually prediction, buzz of such as giving notice near the B point of Figure 12.
As mentioned above; electronic clinical thermometer 10 according to the present embodiment; even if when making electronic clinical thermometer 10 depart from from the accurate location of axillary fossa at gauger's moving body etc., namely when measuring tempeature curve departs from from the curve of prediction usually; also judgement can be made to notify, and the convergence determination time sending timing of buzz increases from standard value, namely carry out so-called protection to the timing that sends of notice buzz, and confirms stable body temperature when notifying.
In addition, the value added of convergence determination time t0 is not limited to 1 second, can set arbitrarily.In addition, also can such as according to T(n) and poor T(n T(n-1))-T(n-1) judge the degree that temperature declines to decide the value added of t0 according to this difference.Thereby, it is possible to more effectively prevent notice buzz from sending in inappropriate timing.
In the above-described embodiment, carry out the reset both sides of the increase of t0 and the counting of time counter 24, but also only can carry out any one party.Further, in order to the timing of the buzz that prevents from giving notice significantly postpones, also the upper limit can be set to the change number of times of t0.
In addition, after measurement starts after certain hour, owing to thinking that greatest measurement is close to equilibrium temperature, so automatically deviation detection function can be set to OFF.
(the 2nd embodiment)
With reference to Fig. 6 to Fig. 8, the 2nd embodiment of the present invention is described.
Present embodiment be used for measure start time electronic clinical thermometer 10 in the inappropriate situation of laying method of axillary fossa, or when departing from from the accurate location of axillary fossa and keep this state after measurement starting, prevent notice buzz from sending in inappropriate timing.
The formation be associated with measurement of bldy temperature of the 2nd embodiment is the formation for the Fig. 3 illustrated in the 1st embodiment, the Δ 1(deviation detection temperature amplitude calculated in slope detection portion 23) be replaced into the formation of rate of change Δ 2.
Fig. 6 with solid line illustrate measure start time electronic clinical thermometer 10 to the curve of the measuring tempeature in the inappropriate situation of laying method of axillary fossa, and, be represented by dotted lines the measuring tempeature curve of appropriate situation, i.e. normal conditions.As shown in the drawing, if the laying method put to axillary fossa is incorrect, then compare with appropriate situation, the temperature sensor 11a that the heat due to body temperature is difficult to from the skin surface of axillary fossa to electronic clinical thermometer 10 transmits, so measuring tempeature slope of a curve becomes mild.When departing from from the accurate location of axillary fossa and maintain this state after measurement starting, become mild from the midway slope of the dotted line of Fig. 6.
If there is such state, although then usually should to give notice buzz by the some C on dotted line, the display part 14 display measurement temperature T1 of electronic clinical thermometer 10, but can buzz of giving notice with the some D on a solid line of C same slope be had, display part 14 display measurement temperature T2.
So, there is the also not fully stable sampling timing of electronic clinical thermometer 10 on measuring tempeature curve and to give notice buzz, report inappropriate body temperature information this problem to gauger.
Given this, in the present embodiment, calculate have passed through certain hour from measuring the rate of change Δ 2 at time point place of such as 50 seconds, this Δ 2 is compared with rate of change decision content γ, judge measuring tempeature curve whether gently for more than usually predicting.That is, at Δ 2=T(n)-T(n-i) < γ is when setting up, and be judged to be measuring tempeature curve gently for more than usual prediction, added, at the region convergence that slope g is less the time predetermined to convergence determination time t0.
I in Δ 2 can set arbitrarily, but is set to i=8 in the present embodiment.In addition, γ and above-mentioned add time can set arbitrarily, such as, can be set to 0.08 DEG C, 2 seconds respectively.Measure after starting and be certainly not limited to 50 seconds to the time calculated Δ 2, can set arbitrarily.
That this particularly illustrated is Fig. 7.After measurement starts after 50 seconds, be changed to be represented by dotted lines usual time there is the rate of change Δ 2p at a P place, in contrast, there is in the solid line that there occurs the problems referred to above the rate of change Δ 2q at a Q place.Because solid line becomes the curve milder than dotted line, so Δ 2q < Δ 2p.
In the present embodiment, when Δ 2 < 0.08 sets up, be judged as measuring tempeature curve gently for more than usually, 2 are added on t0, the constant time lag that notice buzz is piped is to the less scope of slope g, and shown temperature becomes the more stable temperature on measuring tempeature curve.
Specifically, when not adopting present embodiment, the D point notice temperature T2 of time t2 in figure 6, but when adopting present embodiment, be deferred to the E point of time t3, the temperature that display is close with common notice temperature T1.
Fig. 8 is the flow chart of the action that electronic clinical thermometer 10 is described.
Because the S802 to S806 in Fig. 8 is identical with the S402 to S406 in Fig. 4, so omit the description.
In the present embodiment, in S808, the slope detection portion 23 of CPU12 calculates slope g, and when from measurement through 50 seconds calculate Δ 2.As long as the timing of 50 seconds such as by built-in timer (not shown) in CPU12, sends calculation command signal after timing terminates.
Because ensuing S810 to S820 is identical with the S410 to S420 in Fig. 4, so omit the description.
Next, the slope detection portion 23 of CPU12 judges whether Δ 2 < γ, i.e. Δ 2 < 0.08 set up (S822).This judgement can only be carried out for 50 seconds after measurement starts, and also can substitute into larger value, such as infinity, until calculate Δ 2 to be judged as "No" in S822 to Δ 2 in advance.
Due to when Δ 2 < 0.08 sets up in S822 (S822: "Yes"), be judged as that slope ratio is usually mild, extend (S824) so add 2 to convergence determination time t0, and enter into S826.If be false, then owing to thinking that slope is (S822: "No") in common scope, so directly enter into S826.
In S826, slope detection portion 23 judges whether g≤α, i.e. g≤0.00 set up, and judges convergence situation.Because ensuing S828 to S832 is identical with the S428 to S432 in Fig. 4, so omit the description.
As mentioned above, in the present embodiment, after certain hour, slope is judged according to the rate of change of measuring tempeature curve from measurement, when being judged as to the laying method etc. of axillary fossa that because of electronic clinical thermometer slope g is than usually mild, extend convergence determination time t0 and change at the less region convergence of slope g, preventing the measuring tempeature being notified of the sampling timing of the instability on measuring tempeature curve when notice buzz sends.
In addition, in the present embodiment, the rate of change based on the measuring tempeature curve from measuring after certain hour extends convergence determination time t0, but also can be shortened.Such as, can consider due to when measures ambient temperature is higher, the temperature difference of body temperature and electronic clinical thermometer is less, so the rising of measuring tempeature curve in advance, therefore according to the rate of change of the measuring tempeature curve from measuring after certain hour, it is judged, convergence determination time t0 can be shortened on the contrary the notice buzz that pipes in advance.Below this example is described as the 3rd embodiment.
(the 3rd embodiment)
With reference to Fig. 9 to Figure 11, the 3rd embodiment of the present invention is described.
The measuring tempeature curve that present embodiment contemplates electronic clinical thermometer 10 departs from the situation of common curve due to the difference of body temperature and ambient temperature, when to predict in advance depart from such, the value of increase and decrease convergence determination time t0.
Fig. 9 represents the measuring tempeature curve of the situation that there occurs such state.
Such as, when in the winter time etc. ambient temperature is lower, because the temperature affecting the skin surface of axillary fossa being subject to ambient temperature low is also lower, so the heat at the center of health is difficult to be transmitted to temperature sensor 11a by the skin surface of axillary fossa, therefore as shown in the measuring tempeature curve C 3 of this figure, relative to common measuring tempeature curve C 2, slope becomes mild.In this situation, owing to there is the problem identical with the problem illustrated in the above-described 2nd embodiment, so make t0 increase, by the J point that the I point displays temperature T3 at time t4 is deferred to time t5, show the temperature close to T2.
On the other hand, when the ambient temperatures such as summer are higher, because the temperature of the skin surface of axillary fossa is also higher, so the heat at the center of health is transmitted to temperature sensor 11a easily via the skin surface of axillary fossa, therefore as shown in the measuring tempeature curve C 1 of Fig. 9, relative to curve C 2, slope is very steep.Under these circumstances, due to the time converging on equilibrium temperature in advance, so arrive stable temperature quickly, therefore, it is possible to buzz of giving notice in advance.That is, in fig .9, if do not change the value of convergence determination time t0, then at the G point notice T1 of time t2, but t0 can be made to reduce, at F point (there is the slope larger than the G point) buzz of giving notice of time t1, show the temperature close to T2.
Therefore, in this situation, can reduce convergence determination time t0 on the contrary, buzz of more early giving notice, more easily uses concerning gauger.
Next, the concrete formation of present embodiment and action are described.First, the formation be associated with measurement of bldy temperature of the 3rd embodiment is the formation for the Fig. 3 illustrated in the 1st embodiment, the measured value that temperature reading part 20 reads from Temperature measuring section 11 when measuring and starting is exported to stable detection judging part 25 as ambient temperature measurement value, and stable detection judging part 25 environmentally measured temperature formation that convergence determination time t0 is increased and decreased.
Next, in the present embodiment, determine by experiment etc. the variable value of the convergence determination time t0 relative to ambient temperature in advance, and be stored in the memorizer etc. in CPU12.
Figure 10 is the table representing an one example.As shown in Figure 10, in the present embodiment, ambient temperature is more than 15 DEG C when being less than 35 DEG C, the increase and decrease of t0 is set to 0, increases by 2 seconds when being less than 15 DEG C, reduce 1 second when more than 35 DEG C, but these conditions can set arbitrarily.
Figure 11 is the flow chart of the action that electronic clinical thermometer 10 is described.
And, as shown in figure 11, the measured value measured by temperature sensor 11a when measuring and starting carries out measuring (S102) as ambient temperature by CPU12, and the variable value of t0 obtained by the table of reference Figure 10, is re-set as t0 convergence determination time and adds variable value (S104).This action case if carry out in the self-checking behavior that power supply is continuously ON.Because the explanation in the later flow process and the above-mentioned the 1st of S106, the 2nd embodiment is identical, so omit the description.
As mentioned above, electronic clinical thermometer 10 according to the present embodiment, even if measuring tempeature curve due to body temperature and ambient temperature temperature difference and departing from from common curve, also convergence determination time t0 can be made to increase when temperature difference is large, prevent the temperature of the sampling timing of the instability when notifying that buzz sends on display measurement temperature curve, when temperature difference is little, t0 is reduced in addition, the timing advance of the buzz that makes to give notice, can make gauger easily use.
In the above description, respectively illustrate the 1st to the 3rd embodiment, but these embodiments can be made suitably to combine to form electronic clinical thermometer of the present invention.
Such as, 2nd embodiment and the 3rd embodiment are combined, if according to measures ambient temperature change according to measure start after slope g after certain hour and the variable value of convergence determination time t0 that determines, then displays temperature when notice buzz can be made to send is more appropriate.
Symbol description: 10 ... electronic clinical thermometer; 11 ... Temperature measuring section; 11a ... temperature sensor; 11b ... A/D converter; 12 ... CPU; 14 ... display part; 15 ... buzzer; 16 ... switch; 19 ... main body; 20 ... temperature reading part; 21 ... temperature storage part; 22 ... greatest measurement storage part; 23 ... slope detection portion; 24 ... time counter; 25 ... stable detection judging part; 26 ... buzzer control part.
Claims (5)
1. an electronic clinical thermometer, has:
The temperature measurement unit of measuring tempeature;
The memory element of the temperature measured by this temperature measurement unit is stored by each sampling timing;
Based on the measuring tempeature stored in this memory element, calculate the slope detection unit of the slope of measuring tempeature by each sampling timing;
It is the timing unit carrying out time of below the first setting predetermined timing to the slope calculated by this slope detection unit; With
When the timing time of this timing unit continue for more than the stipulated time predetermined, produce the stable detection judging unit of notification signal; The feature of this electronic clinical thermometer is,
The described stipulated time can change based on the temperature stored in the temperature measured by described temperature measurement unit or described memory element,
By the highest measurement temperature that deducts from the measuring tempeature under current sampling timing in the measuring tempeature that was sampled before current sampling timing and the difference obtained calculates described slope.
2. electronic clinical thermometer according to claim 1, is characterized in that,
Described slope detection unit calculates from the measuring tempeature under the sampling timing before the measuring tempeature current sampling timing deducts the first hits predetermined and the temperature amplitude obtained, when described temperature amplitude is less than the second setting predetermined below described first setting, described stable detection judging unit makes the stipulated time of described timing time increase.
3. electronic clinical thermometer according to claim 2, is characterized in that,
Described timing unit also possesses the function of initializing making described timing time turn back to original state,
When described temperature amplitude is less than described second setting, the timing time of described timing unit is also made to initialize.
4. electronic clinical thermometer according to claim 1, is characterized in that,
Based on measure start after have passed through the time predetermined after calculate, to deduct before the second hits of predetermining sampling timing from the measuring tempeature current sampling timing under measuring tempeature and the rate of change that obtains, the described stipulated time is increased and decreased.
5. electronic clinical thermometer according to claim 1, is characterized in that,
Also there is the table of relation having predetermined and measured between ambient temperature when starting and the variable value of described stipulated time,
Described stable detection judging unit with reference to this table, makes described stipulated time increase and decrease according to the ambient temperature that described temperature measurement unit is measured when measuring beginning.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2011284781A JP5757856B2 (en) | 2011-12-27 | 2011-12-27 | Electronic thermometer |
| JP2011-284781 | 2011-12-27 |
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| CN103181757A CN103181757A (en) | 2013-07-03 |
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| CN201210491590.3A Expired - Fee Related CN103181757B (en) | 2011-12-27 | 2012-11-27 | Electronic clinical thermometer |
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| CN103424207A (en) * | 2013-09-04 | 2013-12-04 | 东阿阿胶阿华医疗器械有限公司 | Electronic clinical thermometer and manufacturing method thereof |
| JP6257970B2 (en) * | 2013-09-09 | 2018-01-10 | 蛇の目ミシン工業株式会社 | Electric press, bending point detection method and program |
| JP2015051453A (en) * | 2013-09-09 | 2015-03-19 | 蛇の目ミシン工業株式会社 | Electric press, inflection point detection method and program |
| JP6278402B2 (en) * | 2014-09-29 | 2018-02-14 | テルモ株式会社 | Electronic thermometer |
| JP6031496B2 (en) * | 2014-12-16 | 2016-11-24 | 白光株式会社 | Temperature measuring apparatus and temperature measuring method |
| CN108236456B (en) * | 2016-12-27 | 2020-12-04 | 北京小米移动软件有限公司 | Method and device for detecting placement of thermometer and electronic thermometer |
| CN106725362A (en) * | 2017-01-14 | 2017-05-31 | 维沃移动通信有限公司 | Body temperature measurement method and mobile terminal |
| CN108414117B (en) * | 2018-06-11 | 2024-04-19 | 衡阳师范学院 | Electronic thermometer capable of regularly storing measurement results and medical body temperature monitoring system |
| CN113970382B (en) * | 2020-07-06 | 2023-01-10 | 浙江宇视科技有限公司 | Temperature detection method, device, medium and electronic equipment |
| CN112179523A (en) * | 2020-09-27 | 2021-01-05 | 成都电科新锐科技有限公司 | Intelligent continuous automatic temperature measuring method and system |
| CN115359610A (en) * | 2022-07-04 | 2022-11-18 | 珠海派诺科技股份有限公司 | Temperature measurement type electrical fire monitoring method, equipment and storage medium |
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| CN101115979A (en) * | 2005-03-29 | 2008-01-30 | 西铁城控股株式会社 | Electronic thermometer |
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| JPS61270630A (en) * | 1985-05-24 | 1986-11-29 | Omron Tateisi Electronics Co | Electronic clinical thermometer |
| JPS61271432A (en) * | 1985-05-27 | 1986-12-01 | Omron Tateisi Electronics Co | Electronic clinical thermometer |
| JPS62265543A (en) * | 1986-05-13 | 1987-11-18 | Omron Tateisi Electronics Co | Electronic clinical thermometer |
| US5259389A (en) * | 1990-10-24 | 1993-11-09 | Terumo Kabushiki Kaisha | Electronic clincal thermometer |
| JPH07119656B2 (en) * | 1990-10-24 | 1995-12-20 | テルモ株式会社 | Electronic thermometer |
| JPH10253464A (en) * | 1997-03-10 | 1998-09-25 | Toshiba Glass Co Ltd | Electronic clinical thermometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101115979A (en) * | 2005-03-29 | 2008-01-30 | 西铁城控股株式会社 | Electronic thermometer |
| CN101115977A (en) * | 2005-03-30 | 2008-01-30 | 西铁城控股株式会社 | Clinical thermometer |
| CN101218491A (en) * | 2005-07-12 | 2008-07-09 | 泰尔茂株式会社 | Electronic clinical thermometer, method of controlling the same, and control program |
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| JP2013134161A (en) | 2013-07-08 |
| JP5757856B2 (en) | 2015-08-05 |
| CN103181757A (en) | 2013-07-03 |
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