CN109549635A - Body temperature on-line dynamic measurement method and wearable device - Google Patents
Body temperature on-line dynamic measurement method and wearable device Download PDFInfo
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- CN109549635A CN109549635A CN201811324581.9A CN201811324581A CN109549635A CN 109549635 A CN109549635 A CN 109549635A CN 201811324581 A CN201811324581 A CN 201811324581A CN 109549635 A CN109549635 A CN 109549635A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
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Abstract
The invention discloses a kind of body temperature on-line dynamic measurement method and wearable devices, the environment temperature near body surface temperature and shell temperature temperature measuring point is acquired simultaneously, and body temperature: body temperature=A* shell temperature * shell temperature+B* shell temperature+C* (shell temperature-environment temperature)-D is calculated using following formula；Wherein, A, B, C, D are constant.The present invention uses two o'clock thermometry, according to the measurement data of a large amount of crowds, it is proposed real-time dynamic body temperature optimization computational algorithm, effectively compensate for the limitation that the method for body temperature is measured in single-point room, the dynamic for realizing body temperature accurately measures, and can accurately respond body temperature situation of the human body in different temperatures environment.
Description
Technical field
The present invention relates to body temperature monitoring field, specifically a kind of body temperature on-line dynamic measurement method and wearable
Equipment.
Background technique
The measurement method of existing body temperature, either electronic thermometer or mercury clinical thermometer are all based on single-point survey
It measures and basis is generally applicable in the method that the difference of most crowds compensates estimation, the method including infrared forehead measurement body temperature.It is such
Body temperature measurement method requires that tested crowd is under room temperature state 7 to 10 minutes or more substantially, could reduce outdoor temperature ring
Influence of the border to human body, Estimation and Measurement value are just relatively accurate.
Current body temperature measurement method there are certain requirements tested crowd's local environment, and difference estimation is also based on general
All over applicable empirical value evaluation method, body temperature shape of the human body in different temperatures environment dynamically cannot be accurately measured and reacted
Condition.
Summary of the invention
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, it is online to provide a kind of body temperature dynamic
Measurement method and wearable device realize that the dynamic of body temperature accurately measures, body of the accurate response human body in different temperatures environment
Warm situation.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of body temperature on-line dynamic measurement
Method, while acquiring the environment temperature near body surface temperature and shell temperature temperature measuring point；Using including but not limited to as follows
Formula calculates body temperature: body temperature=A* shell temperature * shell temperature+B* shell temperature+C* (shell temperature-environment temperature)-
D；Wherein, A, B, C, D are constant.
A=-0.0252；B=2.5814；C=-0.01~-0.02；D=16~24.
When measurement be human body forehead, wrist, the temperature at ankle position when, D is respectively between 20 to 24,18 to 22 it
Between, between 16 to 20.
The determination method of D value are as follows: under 20~40 DEG C of environment temperatures, using standard body temp meter, pass through comparison actual measurement calibration
It obtains.
Correspondingly, the present invention also provides a kind of wearable devices, including ontology；The side of described consideration human skin
It is fixed with the first temperature sensor；The ontology remaining at least side is fixed with second temperature sensor；First temperature passes
Sensor, second temperature sensor are connect with MCU；The MCU calculates body temperature according to the following formula: body temperature=A* shell temperature *
Shell temperature+B* shell temperature+C* (shell temperature-environment temperature)-D；Wherein, A, B, C, D are constant.
Near temperature measuring point of the present invention, refer to second temperature sensor as close to the first temperature sensor.
Compared with prior art, the advantageous effect of present invention is that: the present invention using interface two sides two o'clock temperature survey
Amount method proposes real-time dynamic body temperature optimization computational algorithm, effectively compensates for single-point room according to the measurement data of a large amount of crowds
The limitation of interior body temperature measurement method, the dynamic for realizing body temperature of the people in daily activities in space accurately measure, can be with
Body temperature situation of the accurate response human body in different temperatures environment.
Detailed description of the invention
Fig. 1 is that wear-type multiple spot of the present invention compensates human body temperature measuring device；
Fig. 2 is that Wrist belt-type multiple spot of the present invention compensates human body temperature measuring device.
Specific embodiment
Wear or wrist wear equipment two o'clock temperature sensor and structure it is as shown in Figs. 1-2.
1. multiple spot compensation temperature sensor catenation principle figure
Hardware circuit of the present invention combines one using nRF52 series the low-power consumption bluetooth MCU, the MCU of Nordic
64MHz, 32 Cotex-M4F processors and a 2.4GHz multi-protocols radio have -96dB RX sensitivity, and
512kB flash memory and 64kB RAM.
Two temperature sensor model SON1421 digital temperature sensors that the present invention uses have user-programmable
7 (2 DEG C) to 13 (0.03125 DEG C) resolution ratio, and it is upper and lower with the non-volatile temperature that can be arranged by user program
Limit temperature alarming value.Communication interface uses Single-Line interface, it is only necessary to which single pin can be communicated.
2. wear-type multiple spot body temperature measuring device；
Specific distribution of the two-way digital temperature sensor on this wear-type multiple spot body temperature measuring device is as shown in Figure 1.Tightly
Lagging skin side is shell temperature measurement point, and separate one is ambient temperature measurement point.
3. Wrist belt-type multiple spot body temperature measuring device；
Specific distribution of the two-way digital temperature sensor on this Wrist belt-type multiple spot body temperature measuring device is as shown in Figure 2.Tightly
Lagging skin side is shell temperature measurement point, and separate one is ambient temperature measurement point.
4. the temperature-compensating body temperature algorithm of multimetering；
Device described in the invention establishes a specific people by acquisition body surface temperature and environment temperature
Body typical case's body temperature computational algorithm formula is as follows:
Body temperature=- 0.0252* shell temperature * shell temperature+2.5814* shell temperature -0.0139* (shell temperature-environment
Temperature)-D；In the present embodiment, D=22.2556 (forehead position).The value of D can be under 20-40 DEG C of environment temperatures, by right
It is obtained than actual measurement calibration.
Shell temperature general range is at 30 degree to 40 degree, and variation of ambient temperature range is in -40 degree to 50 degree of ranges.
Body temperature algorithmic formula is the Fitting curve equation formula of the quadratic equation with one unknown of shell temperature, in addition shell temperature and ring
The unitary single compensation calculating formula of border temperature gap, and the compensation constant for forehead and foot wrist portion.
The present invention is to verify optimized coefficients by mathematical model according to the round-the-clock real-time data using acquisition of large-tonnage product
Obtained from the mild shell temperature of real-time volume and environment temperature relational expression.Human body physical sign is carried out to based on body temperature data
Analysis provides the accurate body temperature calculated value of dynamic in real time, has positive meaning for human health assessment.
The present invention is as follows: for one group of test data error of different personnel
The measurement of bldy temperature mean error of this group of data is 0.3455648.
Claims (7)
1. a kind of body temperature on-line dynamic measurement method, which is characterized in that while acquiring body surface temperature and shell temperature
Environment temperature near temperature measuring point；Body temperature: body temperature=A* shell temperature * shell temperature+B* body surface is calculated using following formula
Temperature+C* (shell temperature-environment temperature)-D；Wherein, A, B, C, D are constant.
2. body temperature on-line dynamic measurement method according to claim 1, which is characterized in that A=- 0.0252；B=
2.5814；C=- 0.01~-0.02；Between D=16 to 24.
3. body temperature on-line dynamic measurement method according to claim 2, which is characterized in that it is when measurement is human body volume
When head, wrist, the temperature at ankle position, D is respectively between 20 to 24, between 18 to 22, between 16 to 20.
4. body temperature on-line dynamic measurement method described according to claim 1~one of 3, which is characterized in that the determination of D value
Method are as follows: under 20~40 DEG C of environment temperatures, using standard body temp meter, obtained by comparison actual measurement calibration.
5. a kind of wearable device, including ontology；It is characterized in that, the side of described consideration human skin is fixed with the first temperature
Spend sensor；The ontology remaining at least side is fixed with second temperature sensor；First temperature sensor, second temperature
Sensor is connect with MCU；The MCU calculates body temperature according to the following formula: body temperature=A* shell temperature * shell temperature+B* body surface
Temperature+C*(shell temperature-environment temperature)-D；Wherein, A, B, C, D are constant.
6. wearable device according to claim 5, which is characterized in that A=- 0.0252；B=2.5814；C=- 0.01~-
0.02；Between D=16 to 24.
7. wearable device according to claim 6, which is characterized in that it is when measurement is human body forehead, wrist, ankle portion
When the temperature of position, D is respectively between 20 to 24, between 18 to 22, between 16 to 20.
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| CN201811324581.9A CN109549635B (en) | 2018-11-08 | 2018-11-08 | Dynamic online measuring method for human body temperature and wearable equipment |
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| CN201811324581.9A CN109549635B (en) | 2018-11-08 | 2018-11-08 | Dynamic online measuring method for human body temperature and wearable equipment |
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Cited By (5)
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|---|---|---|---|---|
| CN110246589A (en) * | 2019-05-07 | 2019-09-17 | 深圳市谷德科技有限公司 | A kind of body temperature bearing calibration and device based on human body individual difference |
| CN111458042A (en) * | 2020-04-14 | 2020-07-28 | 清华大学 | Human body temperature measuring device, non-contact measuring method and temperature control method |
| CN112050950A (en) * | 2020-10-09 | 2020-12-08 | 浙江福祉科创有限公司 | Wearable device and human body temperature measuring method for same |
| CN112577611A (en) * | 2019-09-29 | 2021-03-30 | 华为技术有限公司 | Human body temperature measuring method, electronic equipment and computer readable storage medium |
| CN113509153A (en) * | 2020-04-10 | 2021-10-19 | 广东小天才科技有限公司 | Wearable terminal, body temperature measuring method thereof and computer-readable storage medium |
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| CN109549635B (en) | 2022-04-19 |
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