TWI790742B - Thermometer and measurement method thereof and temperature measurement system - Google Patents

Abstract

A method of measuring body temperature, including: performing a first round of body temperature measurement on a subject to obtain a first body temperature value in a first time period; obtaining a second body temperature value of the subject in a second time period; calculating a correction value based on the difference between the second body temperature value and the first body temperature value; performing a second round of body temperature measurement on the subject to obtain a third body temperature value, and the third period is later than the first period and the second period; calibrating the third body temperature value with the correction value to obtain a calibrated body temperature value, and displaying the calibrated body temperature value.

Description

Thermometer, measuring method thereof, and body temperature measuring system

The present invention relates to a body temperature measuring method, in particular to a thermometer with automatic calibration function and its measuring method.

The design logic of the conventional predictive thermometer is to correspond to different objects to be measured, and the accuracy and measurement time of different objects to be measured are similar to each other, so a fast and standardized measurement process can be achieved.

The measurement of the predictive thermometer is still based on the calculation of the temperature rise curve, and various types of algorithms with different preset formulas have been developed to improve the accuracy or shorten the measurement time. However, in reality, the temperature rise curve is very easy to be inaccurate due to differences in the target object to be measured, the measurement location, or the current body temperature.

The method for measuring body temperature according to an embodiment of the present invention includes: performing a first round of body temperature measurement on a subject to be measured in a first period of time to obtain a first body temperature value; A second body temperature value of the person being measured; a correction value is calculated based on the difference between the second body temperature value and the first body temperature value; in a third period of time, a second round of body temperature measurement is performed on the person to be measured to obtain a first body temperature value Three body temperature values, the third time period is later than the first time period and the second time period; the third body temperature value is corrected by the correction value to obtain a calibrated body temperature value; and the calibrated body temperature value is displayed.

The measurement method as described above, wherein the second body temperature value is a reference temperature value measured by the subject to be measured, or the second body temperature value is touched by a temperature probe for a second period of time longer than the first period of time The measured body temperature.

The measuring method as described above, wherein when the second body temperature value is the body temperature value measured by the temperature probe touching the subject during the second time period longer than the first time period, the first body temperature value and the third body temperature value It is generated by a predictive thermometer containing a temperature probe according to the unit time change rate of the subject's body temperature in the first period and the third period respectively.

The measurement method as described above, wherein the second period includes the first period.

The measuring method as described above, wherein the first body temperature value, the second body temperature value and the third body temperature value are generated by measuring the same part of the person to be measured by a predictive thermometer including a temperature probe.

In the measurement method described above, the operation of calculating the calibration value includes: dividing the difference between the second body temperature and the first body temperature by a preset constant to obtain the calibration value, and the preset constant is a positive integer.

The measurement method as described above, wherein the operation of generating the first body temperature value includes: calculating the temperature change rate per unit time in a first sub-period of the first period to obtain a first slope; calculating the temperature change rate in the first period of time The rate of temperature change per unit time in the second sub-period obtains a second slope; calculates the rate of temperature change per unit time in the third sub-period in the first period to obtain a third slope; for the first slope, the second The second slope and the third slope are averaged to obtain an average slope; and a first body temperature value is generated according to the average slope.

The measurement method as described above, wherein when the second body temperature value is the base temperature value measured by the subject, the first body temperature value and the third body temperature value are determined by an infrared thermometer or a body temperature sensing patch The measurement is obtained, and the second body temperature value is obtained by measuring with a rectal thermometer.

The measurement method as described above, wherein when the second body temperature value is the reference temperature value measured by the subject to be measured, the first body temperature value and the third body temperature value are measured at the first part of the subject to be measured, and The second body temperature is measured at the second site of the subject, and the first site is different from the second site.

A thermometer according to an embodiment of the present invention includes a temperature sensor and a microcontroller. The temperature sensor is used to detect the body temperature of a subject. The execution of the microcontroller includes: in a first period, receiving the result of a first round of temperature measurement from the temperature sensor to obtain a first body temperature; in a second period, obtaining a first Two body temperature values; in a third period, receiving the result of a second round of body temperature measurement from the temperature sensor to obtain a third body temperature value, the third period is later than the first period and the second period; according to the first period calculating a calibration value based on the difference between the second body temperature and the first body temperature; correcting the third body temperature with the calibration value to obtain a calibration body temperature; and displaying the calibration body temperature.

The above-mentioned thermometer, wherein the second body temperature value is a reference temperature value measured by the subject to be tested, or the second body temperature value is measured by contact with the subject during a second period longer than the first period temperature value.

The above-mentioned thermometer, wherein when the second body temperature value is the body temperature value of the subject measured by contact during the second period longer than the first period, the thermometer is a predictive thermometer with a temperature probe It is used to conduct the temperature value of the subject to be measured to the temperature sensor. The first body temperature value and the third body temperature value are generated by the thermometer according to the unit time change rate of the body temperature value of the subject within the first period and the third period respectively.

The thermometer as above, wherein the second period includes the first period.

The above-mentioned thermometer, wherein the first body temperature, the second body temperature and the third body temperature are generated by the thermometer measuring the same part of the subject to be measured.

The above-mentioned thermometer, wherein when the second body temperature is the reference temperature value measured by the subject, the thermometer is an infrared thermometer. The first body temperature value and the third body temperature value are obtained by measuring with a thermometer, and the second body temperature value is obtained by measuring with a rectal thermometer.

The above-mentioned thermometer, wherein the thermometer and the rectal thermometer respectively include a communication port, so that the thermometer and the rectal thermometer can be electrically coupled through the communication ports of each other, and The thermometer is adapted to receive a second body temperature value from the rectal thermometer.

A body temperature measurement system according to an embodiment of the present invention includes: a thermometer, a rectal thermometer, and a cloud device. The thermometer includes a radio transceiver. The thermometer performs body temperature measurement on a subject to be measured to obtain a first body temperature value, and outputs the first body temperature value through the radio transceiver. Rectal thermometers include a radio transmitter. The rectal thermometer measures the body temperature of the subject to obtain a second body temperature value, and outputs the second body temperature value through the radio transmitter. The thermometer measures the body temperature of the subject to obtain and output a third body temperature value. The time period for obtaining the third body temperature by the thermometer is later than the time period for obtaining the first body temperature by the thermometer and the time period for obtaining the second body temperature by the rectal thermometer. The cloud device receives the first body temperature value, the second body temperature value and the third body temperature value, and performs the following steps: obtaining a correction value based on the difference between the second body temperature value and the first body temperature value; correcting the third body temperature value with the correction value , obtaining a calibrated body temperature value; and outputting the calibrated body temperature value to the thermometer.

S100, S102, S104: steps

S106, S108, S110: steps

A: Predicted body temperature value

A': Calibrated body temperature value

B, B': measure body temperature

C, C': final body temperature

tp1,tp3,tp4,tp1',tp3',tp4': time period

t2, t5, t2', t5': time points

T1, T2, T3, T4, T5: temperature

T1’, T2’, T3’, T4’, T5’: temperature

0: measurement time zero

300: Thermometer

302: temperature probe

304: temperature sensor

306: microcontroller

308: display unit

310: storage

312: Buzzer

320: thermal conductor

330: temperature data

340: display interface

350: access interface

360: control signal

400: infrared thermometer

402: rectal thermometer

410: temperature sensor

412: microcontroller

414: display unit

416: Storage

418,420: communication port

430: temperature data

440: display interface

450: access interface

460: communication interface

500: Body temperature measurement system

502: Thermometer

504: rectal thermometer

506: cloud device

510,512: Radio communication interface

520: radio transceiver

522:Radio transmitter

FIG. 1 is a flowchart of a body temperature measurement method according to an embodiment of the present invention.

FIG. 2A is a schematic diagram of a temperature rise curve obtained by performing an initial measurement in the body temperature measuring method in FIG. 1 according to an embodiment of the present invention.

FIG. 2B is a schematic diagram of a temperature rise curve obtained by performing the next measurement in the body temperature measurement method in FIG. 1 according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of a thermometer implementing the body temperature measurement method in FIG. 1 according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a thermometer implementing the body temperature measurement method in FIG. 1 according to another embodiment of the present invention.

FIG. 5 is a schematic diagram of a body temperature measurement system implementing the body temperature measurement method in FIG. 1 according to an embodiment of the present invention.

The present invention is described with reference to the accompanying drawings, wherein like reference numerals designate similar or identical elements throughout. The above drawings are not drawn according to actual scale, and they are only provided to illustrate the present invention. Some aspects of the invention are described below as references to illustrate exemplary applications. This means that numerous specific details, relationships and methods are set forth to provide a complete understanding of the invention. However, one having ordinary knowledge in the relevant art will recognize that the invention can still be practiced without one or more of the specific details or otherwise.

In other instances, well-known structures or operations are not listed in detail to avoid obscuring the invention. The invention is not limited by the illustrated acts or sequence of events, as some acts may occur in a different order or concurrently with other acts or events. Furthermore, not all recited acts or events need be performed in the same manner as a prior invention.

FIG. 1 is a flowchart of a method for measuring body temperature according to an embodiment of the present invention. As shown in FIG. 1 , in step S100 of the body temperature measuring method of the present invention, a first round of body temperature measurement is performed on a subject to be measured in a first period of time to obtain a first body temperature value. In some embodiments, the measurement object of the body temperature measuring method of the present invention is a pet or a human, but the present invention is not limited thereto. Afterwards, in step S102, the body temperature measurement method of the present invention obtains a second body temperature value of a subject to be measured in a second period. In step S104, the body temperature measurement method of the present invention calculates a correction value based on the difference between the second body temperature value in step S102 and the first body temperature value in step S100. Then, in a third period, the body temperature measurement method of the present invention performs a second round of body temperature measurement to obtain a third body temperature value, and the third period is later than the first period and step in step S100 The second time period in S102 (step S106). Next, in step S108 , the body temperature measuring method of the present invention corrects the third body temperature value in step S106 with the correction value in step S104 to obtain a calibrated body temperature value.

In detail, in step S106, the body temperature measuring method of the present invention performs the body temperature measurement as in step S100 in a third period to generate a third body temperature value. Since step S106 is related to the next amount The measurement (for example, the second round of body temperature measurement) is performed, so the third time period in step S106 is of course later than the second time period in step S102 and the first time period in step S100. Furthermore, in step S108, the body temperature measurement method of the present invention adds the third body temperature value obtained in step S106 to the correction obtained in step S104 to obtain a calibrated body temperature value (that is, a calibrated body temperature value). temperature value). Finally, in step S110, the body temperature measurement method of the present invention displays the calibrated body temperature value on a display unit of a thermometer. In some embodiments, the thermometer for performing steps S100 to S110 in FIG. 1 can be a predictive thermometer, a combination of an infrared thermometer and a rectal thermometer, and a thermometer, a rectal thermometer and a cloud device. integrated body temperature measurement system.

In other words, step S108 can make the gap between the body temperature (such as the first body temperature, the third body temperature) obtained by the body temperature measurement method of the present invention and an actual body temperature (such as the second body temperature) gradually increase. Small, so that the subject can quickly obtain more accurate body temperature information during body temperature measurement. In some embodiments, the second body temperature value in step S102 is a reference temperature value measured by the subject, such as core temperature such as rectal temperature and hypothalamic temperature of the subject. When the second body temperature value in step S102 is the reference temperature value measured by the subject, the first body temperature value and the third body temperature value are measured by an infrared thermometer or a body temperature sensing patch, and the second Body temperature is measured by a rectal thermometer. In some embodiments, when the second body temperature value in step S102 is the reference temperature value measured by the subject, the first body temperature value and the third body temperature value are measured at the first part of the subject, and the second The second body temperature is measured at the second site of the subject, and the first site is different from the second site.

In some embodiments, the second body temperature value in step S102 is the body temperature value measured by a temperature probe touching the subject during a second time period longer than the first time period. When the second body temperature value in step S102 is the body temperature value measured by the temperature probe contacting the subject during the second time period longer than the first time period, the first body temperature value and the third body temperature value include one of the temperature probe The predictive thermometer is generated according to the change rate per unit time of the body temperature of the subject during the first period and the third period respectively. In some embodiments, when the second body temperature value in step S102 is measured by the temperature probe touching the subject during a second period longer than the first period When obtaining body temperature values, the first body temperature value, the second body temperature value and the third body temperature value are generated by measuring the same part of the subject to be measured by the predictive thermometer containing the temperature probe.

FIG. 2A is a schematic diagram of a temperature rise curve obtained by implementing the body temperature measuring method in FIG. 1 according to an embodiment of the present invention. FIG. 2A is an example of a predictive thermometer. Referring to Fig. 1 and Fig. 2A at the same time, the body temperature measurement method of the present invention contacts the predictive thermometer to a subject at the measurement time 0 o'clock in Fig. 2A, and starts a first round of body temperature measurement. As the measurement time elapses, the measurement data obtained from the predictive thermometer forms a temperature rise curve as shown in FIG. 2A. In some embodiments, the body temperature measurement method of the present invention performs the body temperature measurement in step S100 during a period tp1 after the period tp3 of the first round of body temperature measurement.

For example, according to the temperature rise curve, when the measurement time is the start time point of the period tp1, the corresponding temperature is T4. When the measurement time is the end time point of the period tp1, the corresponding temperature is T5. Therefore, the body temperature measuring method of the present invention can obtain the rate of temperature change per unit time (or the slope of the temperature rise curve in FIG. 2A during the time period tp1) by the formula |T5-T4|/(tp1).

More specifically, the body temperature measurement method of the present invention further divides the period tp1 in FIG. 2A into three sub-periods. For example, the period tp1 may include a first sub-period (not shown), a second sub-period (not shown), and a third sub-period (not shown). Wherein, the start time point of the first sub-period is overlapped with the start time point of period tp1, the end time point of the third sub-period is overlapped with the end time point of period tp1, and the second sub-period is between the first sub-period and the first sub-period. between the three sub-periods. In other words, the second sub-period follows the first sub-period and the third sub-period follows the second sub-period. In some embodiments, the body temperature measurement method of the present invention can calculate the temperature change rate per unit time of the temperature data received in the first sub-period of the period tp1 to obtain a first slope. The body temperature measurement method of the present invention can calculate the temperature change rate per unit time of the temperature data received in the second sub-period of the period tp1 to obtain a second slope. Furthermore, the body temperature measurement method of the present invention can calculate the temperature change rate per unit time of the temperature data received in the third sub-period of the period tp1 to obtain a third slope. Next, the body temperature measuring method of the present invention has a different effect on the first slope, the second The second slope and the third slope are averaged to obtain an average slope. Finally, the body temperature measurement method of the present invention generates the predicted body temperature value A in FIG. 2A according to the average slope.

Next, the body temperature measurement method of the present invention obtains a predicted body temperature value A at the end time point of the time period tp1 according to the temperature change rate per unit time of the temperature data in the time period tp1. In the example shown in FIG. 2A , the temperature value of the predicted body temperature value A is T1. Then, at the time point t2, that is, the time point after the time period tp4 after the end time point of the time period tp1, the body temperature measurement method of the present invention generates a measured body temperature value B( Step S102 in Fig. 1). In the embodiment shown in FIG. 2A , the measured temperature value B is T2. Although in the embodiment in FIG. 2A, the predicted body temperature value A is smaller than the measured body temperature value B, that is, the temperature T1 is smaller than the temperature T2, the present invention does not limit the relationship between the predicted body temperature value A and the measured body temperature value B. In some embodiments, the predicted body temperature value A is greater than the measured body temperature value B, that is, the temperature T1 is greater than the temperature T2.

Afterwards, the body temperature measurement method of the present invention subtracts the measured body temperature value B and the predicted body temperature value A in FIG. 2A to obtain a temperature difference ΔT. The body temperature measurement method of the present invention obtains a correction value according to the temperature difference ΔT (step S104 in FIG. 1 ). In some embodiments, the body temperature measurement method of the present invention stores the correction value in a memory of the predictive thermometer for use in the next measurement. In some embodiments, the body temperature measurement method of the present invention can measure a final body temperature value C at the time point t5. In the example shown in FIG. 2A, the final body temperature value C has a temperature magnitude of T3. The final body temperature value C will be greater than the measured body temperature value B. In the first round of body temperature measurement, the body temperature measurement method of the present invention divides the temperature difference ΔT between the measured body temperature value B and the predicted body temperature value A by a preset constant N to obtain a correction value. In some embodiments, the preset constant N is a positive integer, such as 2 or 3, but the invention is not limited thereto.

Generally speaking, in a predictive thermometer that focuses on rapid body temperature measurement, the subject will not patiently continue to measure until the time point t5. In practice, the subject can still receive the predicted body temperature value A obtained at the end time point of the time period tp1 as the final body temperature result. Therefore, the body temperature measuring method of the present invention utilizes the correction value in the first round of body temperature measurement in step S104, so that the next measurement (second round of body temperature) The predicted body temperature value in the measurement) can gradually converge to the measured body temperature value in the next measurement, so as to achieve the dual purpose of fast and accurate measurement.

When the time point of obtaining the predicted body temperature value A is closer to the time point of obtaining the measured body temperature value B (for example, the predicted body temperature value A is obtained at any time point in the period tp4), the body temperature measuring method of the present invention The calculated temperature difference ΔT between the predicted body temperature value A and the measured body temperature value B will be smaller, but it will make the waiting time of the subject longer for the measurement. In other words, there is a trade-off between measurement accuracy and measurement speed. The body temperature measurement method of the present invention achieves a balance between measurement accuracy and measurement speed.

In some embodiments, the period tp3 of FIG. 2A is 7 seconds, the period tp1 is 2 seconds, and the period tp4 is 11 seconds. In other words, the body temperature measurement method of the present invention obtains the predicted body temperature value A at the 9th second after starting the initial measurement, and obtains the measured body temperature value B at the 20th second after the start of the measurement (i.e. time point t2), and The final body temperature value C is obtained at the 180th second after the start of the measurement (ie time point t5). In practical application, when the predicted temperature A converges (or approaches) more and more to the measured body temperature value B, the subject can obtain an accurate body temperature measurement result in the 9th second after the measurement.

In some embodiments, in the first round of measurement, when the body temperature measurement method of the present invention detects that the body temperature measured by the predictive thermometer is lower than a predetermined temperature within a predetermined period of time, then the The invented body temperature measurement method judges that the predictive thermometer has left the body of the subject, thus knowing that the initial measurement has ended. Similarly, when the body temperature measuring method of the present invention detects that the body temperature measured by the predictive thermometer is higher than the preset temperature within a preset period of time, the body temperature measuring method of the present invention judges that the predictive thermometer has been in contact with the preset temperature. Therefore, it is known that the first round of temperature measurement or the second round of temperature measurement has started.

FIG. 2B is a schematic diagram of a temperature rise curve obtained by performing the next measurement in the body temperature measurement method in FIG. 1 according to an embodiment of the present invention. FIG. 2B also takes a predictive thermometer as an example. In the next measurement (step S106 in Fig. 1), the body temperature measurement method of the present invention contacts the predictive thermometer to the same subject at the measurement time 0 o'clock in Fig. 2B to obtain another temperature rise curve . In the body temperature measurement method of the present invention, the steps are performed during a period tp1' (for example, a period of time period tp3' after performing the next measurement) The temperature prediction in S106 generates a predicted body temperature value (the third body temperature value in step S106 in FIG. 1 ). Next, in the body temperature measurement method of the present invention, the predicted body temperature value obtained in the next measurement is added to the correction value obtained in step S104 of the first round of body temperature measurement, and a calibrated body temperature is correspondingly obtained value A' (step S108 in FIG. 1).

In the second round of body temperature measurement (step S106), the body temperature measurement method of the present invention displays the calibrated body temperature value A' on the display unit of the predictive thermometer (step S110 in Figure 1), so that the subject will calibrate Body temperature value A' is used as the final body temperature result. When the body temperature measurement method of the present invention does not detect that the second round of body temperature measurement has ended at the time point t2' in the next measurement, another actual temperature measurement can be performed at the time point t2', and Generate a measured body temperature value B'. Since the difference between the measured body temperature value B' and the calibrated body temperature value A' in the next measurement will be smaller than the temperature difference △T between the measured body temperature value B and the predicted body temperature value A' in the initial measurement, that is, the subject The calibrated body temperature value A' obtained in the next measurement is more convergent to the measured body temperature value B', so that the final body temperature result obtained by the subject (ie, the calibrated body temperature value A') is more accurate.

In the initial measurement, since the correction value in step S104 is equal to the temperature difference ΔT between the predicted body temperature value A and the measured body temperature value B divided by the preset constant N, the body temperature value A' will be calibrated in the next measurement The speed of converging on the measured body temperature value B' depends on the value of the preset constant N. For example, when the preset constant N is smaller, the compensation value is larger, so that the calibration body temperature value A' converges to the measured body temperature value B' faster (that is, the number of rounds of body temperature measurement required to be performed is smaller) . When the preset constant N is larger, the compensation value is smaller, so that the calibration body temperature value A' converges to the measured body temperature value B' slower (that is, the number of rounds of body temperature measurement required to be performed is more).

FIG. 3 is a schematic diagram of a thermometer implementing the body temperature measurement method in FIG. 1 according to an embodiment of the present invention. As shown in FIG. 3 , the thermometer 300 includes a temperature probe 302 , a temperature sensor 304 , a microcontroller 306 , a display unit 308 , a memory 310 , and a buzzer 312 . In some embodiments, thermometer 300 is a predictive thermometer. In some embodiments, the temperature probe 302 is in contact with a subject to conduct the body temperature of the subject to the temperature sensor 304 through the thermal conductor 320 . The temperature sensor 304 takes a The preset sampling rate detects the body temperature of the subject on the thermal conductor 320 and correspondingly generates temperature data 330 corresponding to the body temperature of the subject. In some embodiments, the temperature data 330 can be a raw data, which records the body temperature information of the subject at each sampling time point. The temperature sensor 304 then sends the temperature data 330 to the microcontroller 306 .

In some embodiments, the temperature probe 302 and the thermal conductor 320 can be made of metal or other materials with good thermal conductivity. In some embodiments, the preset sampling rate of the temperature sensor 304 can be set through the microprocessor 306 . In some embodiments, the microcontroller 306 can be, for example, a central processing unit (CPU), a digital signal processor (DSP), a field programmable logic array (FPGA), or an application-specific integrated circuit (ASIC). limited to this. In some embodiments, the storage 310 can be any non-volatile memory.

In some embodiments, the microcontroller 306 executes a temperature calibration algorithm 314, so that the microcontroller 306 performs a first round of body temperature measurement (steps S100, S102, S104 in FIG. 1), and a second round Body temperature measurement (step S106 in FIG. 1 ). In the first round of body temperature measurement, microcontroller 306 generates a predicted body temperature value (such as the first time period in FIG. Body temperature value and predicted body temperature value A) in Figure 2A (corresponding to step S100 in Figure 1); according to the temperature data obtained during a second period of time (for example, the period from time point 0 to time point t2 in Figure 2A) , generate a measured body temperature value (such as the second body temperature value in Figure 1 and the measured body temperature value B in Figure 2A) (corresponding to step S102 in Figure 1); based on the difference between the measured body temperature value and the predicted body temperature value value (such as temperature difference ΔT) to obtain a correction value (corresponding to step S104 in Fig. 1).

The microcontroller 306 executes the temperature calibration algorithm 314, so that the microcontroller 306 executes step S106, including: in the second round of body temperature measurement, according to the temperature data in a third period (for example, the period tp1' in FIG. 2B ) The temperature change rate per unit time produces a second predicted body temperature value (corresponding to the third body temperature value in step S106 of the first figure); the second predicted body temperature value is added to the correction value to obtain a calibration body temperature value (such as the above-mentioned Calibration body temperature value A') in implementation (corresponding to step S108 of Fig. 1); and output calibration body temperature value (corresponding to step S110 in Fig. 1).

In some embodiments, the microcontroller 306 transmits a data signal corresponding to the calibrated body temperature value to the display unit 308 through a display interface 340 , so that the display unit 308 displays the calibrated body temperature value. In some embodiments, at the end of the first period (such as the end time point of the period tp1 in FIG. 2A ), the microprocessor 306 sends a data signal corresponding to the predicted body temperature value (such as the predicted body temperature value A in FIG. 2A ). The output is sent to the display unit 308, so that the display unit 308 displays the predicted body temperature value. In some embodiments, in the first round of body temperature measurement, the microprocessor 306 stores the correction value to the memory 310 through an access interface 350 . In the second round of body temperature measurement, the microprocessor 306 reads the correction value from the memory 310 to calculate the calibration body temperature value.

In a word, the microprocessor 306 uses the correction value of the current measurement round to calibrate the predicted value of the next measurement round during each body temperature measurement. In other words, the microprocessor 306 will correspondingly update the correction value stored in the memory 310 as the number of measurement rounds increases, so that the predicted body temperature value in subsequent measurement rounds can be closer and closer to the measured temperature value.

In some embodiments, when the first period ends (for example, the end time point of the period tp1 in FIG. 2A ), the microprocessor 306 outputs a control signal 360 to the buzzer 312, so that the buzzer 312 emits a first Appropriate sound, such as two short beeps. At the end of the second period (such as time point t2 in FIG. 2A), the microprocessor 306 outputs a control signal 360 to the buzzer 312, so that the buzzer 312 emits a second sound, such as three long beeps . The way that the microcontroller 306 of the present invention calculates the temperature change rate per unit time of the temperature data received in the first period (or the third period), and the way of calculating the correction value in the first round of body temperature measurement is the same as that of the present invention The temperature measurement method is the same, so it will not be repeated here.

In the practical application of the present invention, the thermometer 300 can be configured and sold in veterinary hospitals or pet supply stores. For example, after a customer purchases the thermometer 300 for his pet, the staff in the veterinary hospital or pet supply store can assist the customer to use the thermometer 300 to perform steps S100-S104 in FIG. 1, so that the customer can use the thermometer 300 when returning home. When measuring the body temperature of the pet, the thermometer 300 has a built-in correction value. That is, as the number of temperature measurements of the same pet by the thermometer 300 increases, the body temperature increases. The measurement accuracy of the thermometer 300 is also higher.

FIG. 4 is a schematic diagram of a thermometer implementing the body temperature measurement method in FIG. 1 according to another embodiment of the present invention. As shown in FIG. 4 , the infrared thermometer 400 includes a temperature sensor 410 , a microcontroller 412 , a display unit 414 , a storage 416 , and a communication port 418 . The rectal thermometer 402 includes a communication port 420 . In some embodiments, the temperature sensor 410 is used to detect the infrared energy reflected from the subject, and obtain the corresponding body temperature value according to the reflected infrared energy, and correspondingly generate a temperature corresponding to the subject's body temperature Data 430. In some embodiments, the temperature data 430 can be raw data, which records the body temperature information of the subject at each sampling time point. The temperature sensor 410 then sends the temperature data 430 to the microcontroller 412 . In some embodiments, the preset sampling rate of the temperature sensor 410 can be set through the microprocessor 412 . In some embodiments, the microcontroller 412 can be, for example, a central processing unit (CPU), a digital signal processor (DSP), a field programmable logic array (FPGA), or an application-specific integrated circuit (ASIC). limited to this. In some embodiments, the storage 416 can be any non-volatile memory.

Referring to FIG. 1 and FIG. 4 at the same time, when the infrared thermometer 400 performs a first round of body temperature measurement on a subject during the first period, the microcontroller 412 obtains the temperature from the temperature sensor 410 during the first period. Data 430, obtain a first body temperature value (corresponding to step S100 in FIG. 1). Next, when the rectal thermometer 402 measures the body temperature of the subject during the second period, a reference temperature value, that is, a second body temperature value is obtained (corresponding to step S102 in FIG. 1 ). In some embodiments, the present invention does not limit the order of the first time period and the second time period. The rectal thermometer can transmit the measured reference temperature value to the infrared thermometer 400 through its communication port 420 . In practical applications, the rectal thermometer 402 can be connected to the communication port 418 of the infrared thermometer 400 through the communication port 420 . In other words, the rectal thermometer 402 can be physically spliced and electrically connected to the infrared thermometer 400 . Afterwards, the reference temperature value is transmitted to the microprocessor 412 through the communication interface 460 . In some embodiments, when the rectal thermometer 402 and the infrared thermometer 400 are connected to each other within a preset time, the reference temperature value can be transmitted to the microprocessor through the communication interface 460 412.

Next, the microcontroller 412 calculates a correction value according to the difference between the second body temperature and the first body temperature (corresponding to step S104 in FIG. 1 ). In some embodiments, the method for calculating the correction value by the infrared thermometer 400 is the same as that of the thermometer 300 in FIG. 3 , so it will not be repeated here. Moreover, when the infrared thermometer 400 performs a second round of body temperature measurement of the subject in the third period, the microprocessor 412 obtains the temperature from the temperature sensor 410 in the third period (later than the first period and the second period). temperature data 430 to obtain a third body temperature value (corresponding to step S106 in FIG. 1 ). Afterwards, the microcontroller 412 calibrates the third body temperature value with the correction value to obtain a calibrated body temperature value (corresponding to step S108 in step 1 of FIG. 1 ). In some embodiments, the method for the microcontroller 412 to calculate and calibrate the body temperature is the same as that of the thermometer 300 in FIG. 3 , so details are not repeated here.

Finally, the microcontroller 412 transmits the data signal corresponding to the calibrated body temperature value to the display unit 414 through a display interface 440 , so that the display unit 414 displays the calibrated body temperature value. In some embodiments, in the first round of body temperature measurement, the microprocessor 412 stores the correction value to the memory 416 through an access interface 450 . In the second round of body temperature measurement, the microprocessor 412 reads the correction value from the memory 416 to calculate the calibration body temperature value.

FIG. 5 is a schematic diagram of a body temperature measurement system implementing the body temperature measurement method in FIG. 1 according to an embodiment of the present invention. As shown in FIG. 5 , the body temperature measurement system 500 includes a thermometer 502 , a rectal thermometer 504 , and a cloud device 506 . In some embodiments, thermometer 502 includes a radio transceiver 520 . Rectal thermometer 504 includes a radio transmitter 522 . The thermometer 502 performs a first round of body temperature measurement on a subject during the first period to obtain a first body temperature value (corresponding to step S100 in FIG. 1 ). In addition, the thermometer 502 further outputs the first body temperature value through the radio transceiver 520 . For example, the first body temperature value is sent to the cloud device 506 through the wireless communication interface 510 .

The rectal thermometer 504 measures the body temperature of the subject during the second period to obtain a second body temperature value (corresponding to step S102 in FIG. 1 ). In some embodiments, the radio transmitter 522 of the rectal thermometer 504 transmits the second body temperature value to the cloud device 506 through the wireless communication interface 512 . In Figure 5 the actual In an embodiment, the present invention does not limit the order of the first time period and the second time period. Next, the thermometer 502 performs a second round of body temperature measurement on the subject during the third period to obtain a third body temperature value (corresponding to step S106 in FIG. 1 ). The third time period is later than the first time period and the second time period. The cloud device 506 receives the first and third body temperature values from the thermometer 502 and the second body temperature value from the rectal thermometer 504 through the wireless communication interfaces 510 and 512 . In some embodiments, the cloud device 506 can be any mobile device that can be connected to the Internet, but the present invention is not limited thereto.

Next, the cloud device 506 obtains a correction value according to the difference between the second body temperature and the first body temperature (corresponding to step S104 in FIG. 1 ). In some embodiments, the method for calculating the correction value by the cloud device 506 is the same as that of the thermometer 300 in FIG. 3 and the infrared thermometer 400 in FIG. 4 , so it will not be repeated here. Furthermore, the cloud device 506 corrects the third body temperature value with the correction value to obtain a calibrated body temperature value (corresponding to step S108 in FIG. 1 ). In some embodiments, the method for calculating and calibrating the body temperature by the cloud device 506 is the same as that of the thermometer 300 in FIG. 3 and the infrared thermometer 400 in FIG. 4 , so details are not repeated here. Finally, the cloud device 506 transmits the calibrated body temperature value back to the thermometer 502 through the radio communication interface 510, so that the thermometer 502 can display the calibrated body temperature value (corresponding to step S110 in FIG. 1 ).

While embodiments of the present invention have been described above, it should be understood that the foregoing has been presented by way of example only, and not limitation. Many changes of the above exemplary embodiments according to this embodiment can be implemented without departing from the spirit and scope of the invention. Therefore, the breadth and scope of the present invention should not be limited by the above-described embodiments. Rather, the scope of the present invention should be defined by the following claims and their equivalents.

While the above invention has been illustrated and described by one or more pertinent implementations, equivalent alterations and modifications will occur to others skilled in the art in light of the above specification and drawings. Furthermore, although a particular feature of an embodiment of the invention has been demonstrated by one of the associated implementations, the aforementioned feature may be combined with one or more other features such that it may be desirable and helpful to any known or particular Applications.

Unless otherwise defined, all terms (including technical or scientific terms) used herein can be commonly understood by those having ordinary skill in the art pertaining to the above inventions. We should be more aware that the above terms, such as those defined in commonly used dictionaries, should be interpreted as the same meanings in the context of related technologies. Unless expressly defined herein, the above terms are not to be interpreted in an idealized or overly formal sense.

S100, S102, S104: steps

S106, S108, S110: steps

Claims (16)

A method for measuring body temperature, comprising: performing a first round of body temperature measurement on a subject to be measured in a first period of time to obtain a first body temperature value; obtaining a first temperature value of a subject to be measured in a second period Two body temperature values; divide the difference between the second body temperature value and the first body temperature value by a preset constant to calculate a correction value; wherein, the preset constant is a positive integer; The examiner performs a second round of body temperature measurement to obtain a third body temperature value, wherein the third time period is later than the first time period and the second time period; the third body temperature value is corrected by the correction value to obtain a calibration a body temperature value; and displaying the calibrated body temperature value. The method for measuring body temperature according to claim 1, wherein the second body temperature value is a reference temperature value measured for the subject, or the second body temperature value is within the second time period longer than the first time period The temperature value measured by a temperature probe touching the subject. The method for measuring body temperature according to claim 2, wherein when the second body temperature value is the body temperature value measured by the temperature probe touching the subject during the second time period longer than the first time period, the The first body temperature value and the third body temperature value are generated according to the rate of change of the subject's body temperature value per unit time during the first period and the third period respectively by a predictive thermometer including the temperature probe. The method for measuring body temperature according to claim 3, wherein the second time period includes the first time period. The method for measuring body temperature according to claim 3, wherein the first body temperature value, the second body temperature value and the third body temperature value are measured at the same part of the subject by the predictive thermometer containing the temperature probe produced by the test. The method for measuring body temperature according to claim 3, wherein the operation of generating the first body temperature value includes: Calculate the temperature change rate per unit time in a first sub-period of the first period to obtain a first slope; calculate the temperature change rate per unit time in a second sub-period of the first period to obtain a second Slope; calculate the temperature change rate per unit time in a third sub-period of the first period to obtain a third slope; average the first slope, the second slope, and the third slope to obtain a an average slope; and generating the first body temperature value according to the average slope. The method for measuring body temperature as in claim 2, wherein when the second body temperature is the reference temperature value measured for the subject, the first body temperature and the third body temperature are determined by an infrared ray The second body temperature is measured by a thermometer or a body temperature sensing patch, and the second body temperature is measured by a rectal thermometer. The method for measuring body temperature according to claim 2, wherein when the second body temperature value is the reference temperature value measured for the subject, the first body temperature value and the third body temperature value are for the subject to be measured The second body temperature is measured at a first site of the subject, and the second body temperature is measured at a second site of the subject, the first site being different from the second site. A thermometer comprising: a temperature sensor for detecting the body temperature of a person to be measured; As a result of body temperature measurement, a first body temperature value is obtained; in a second period, a second body temperature value of the person to be measured is obtained; in a third period, a second round is received from the temperature sensor body temperature measurement As a result, a third body temperature value is obtained; wherein the third time period is later than the first time period and the second time period; according to dividing the difference between the second body temperature value and the first body temperature value by a preset constant, a A correction value; wherein, the preset constant is a positive integer; correcting the third body temperature value with the correction value to obtain a calibrated body temperature value; and displaying the calibrated body temperature value. The thermometer according to claim 9, wherein the second body temperature value is a reference temperature value measured for the subject, or the second body temperature value is obtained by contacting the second time period longer than the first time period The measured body temperature of the subject. The thermometer according to claim 10, wherein when the second body temperature value is the body temperature value of the subject measured by contact during the second period longer than the first period, the thermometer is a predictive thermometer , having a temperature probe for transmitting the body temperature value of the subject to the temperature sensor; the first body temperature value and the third body temperature value are the thermometer in the first period and the third period respectively generated according to the unit time change rate of the subject's body temperature. The thermometer according to claim 11, wherein the second time period includes the first time period. The thermometer according to claim 11, wherein the first body temperature, the second body temperature and the third body temperature are generated by the thermometer measuring the same part of the subject. The thermometer according to claim 10, wherein, when the second body temperature is the reference temperature value measured for the subject, the thermometer is an infrared thermometer; the first body temperature and the third body temperature are obtained by measuring with the thermometer, and the second body temperature value is obtained by measuring with a rectal thermometer. The thermometer according to claim 14, wherein the thermometer and the rectal thermometer respectively include a communication port, so that the thermometer and the rectal thermometer can be electrically coupled through the communication ports of each other, and the thermometer receiving the second body temperature value from the rectal thermometer. A body temperature measurement system, comprising: a thermometer, including a radio transceiver; wherein the thermometer performs body temperature measurement on a subject to be measured, obtains a first body temperature value, and outputs the first body temperature value through the radio transceiver The rectal thermometer includes a radio transmitter; wherein the rectal thermometer performs body temperature measurement on the subject to obtain a second body temperature value, and outputs the second body temperature value through the radio transmitter; The thermometer measures the body temperature of the person to be measured, obtains and outputs a third body temperature value, and the time period for the thermometer to obtain the third body temperature value is later than the time period for the thermometer to obtain the first body temperature and the rectal thermometer The time period for obtaining the second body temperature; and a cloud device receiving the first body temperature value, the second body temperature value, and the third body temperature value for performing operations including: based on the second body temperature value and the first body temperature value dividing the difference by a preset constant to obtain a correction value; wherein, the preset constant is a positive integer; correcting the third body temperature value with the correction value to obtain a calibrated body temperature value; and outputting the calibrated body temperature value to the thermometer .

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