CN106539578A - A kind of physio-parameter detection method and device - Google Patents
A kind of physio-parameter detection method and device Download PDFInfo
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
- A61B5/02427—Details of sensor
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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
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
- A61B5/14552—Details of sensors specially adapted therefor
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- 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
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- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
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- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
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Abstract
The invention discloses a kind of physio-parameter detection method and device.Wherein, physio-parameter detection method includes：When physiological parameter error-detecting event is monitored, the humidity value at the PPG sensors is detected by the humidity sensor being arranged at photoplethysmographic tracing PPG sensors；If the humidity value that the humidity sensor is detected exceedes the humidity threshold of setting, the prompting that there is physiological parameter measurement error is sent.Technical scheme provided in an embodiment of the present invention, when there is the liquid such as perspiration at the position of the photosensitive sensors for solving intelligent terminal, affects the problem of normal physiological parameter measurement.
Description
Technical field
The present invention relates to wireless mobile product development technical field, more particularly to a kind of physio-parameter detection method and dress
Put.
Background technology
As the intelligent terminal such as developing rapidly for wireless mobile product development technology, present intelligent watch are except work(of conversing
Energy is outer, also the function such as amusement, navigation, study, or even can also measure acceleration, measure blood pressure and heart rate of user etc., right
The health of user is monitored, and has great importance for old man and child.
Many intelligent terminal have the function of measurement heart rate, and existing widest using method is using light volume pulsation
Ripple tracing (Photo Plethysmo Graphy, PPG) sensor is detected.For example, for intelligent watch, in handss
Table bottom contact arm segment arrange PPG sensors, PPG sensors using follow the trail of reflection of the visible ray in tissue or
Project to measure the pulse of human body, generally, pulse is consistent with heart rate, so being combined by PPG sensors
Certain algorithm is obtained the heart rate value of user.PPG sensors can be also used for measuring oxygen content, the kinestate to user
It is analyzed, the cardiovascular and respiratory disorder of user is prevented.
But, because reflection and the physiology ginseng that reflect measure people of the PPG sensors according to blood or tissue to light
Number.So when user's arm has water or antiperspirant, the reflection of light will be affected, and so as to the accuracy for affecting to measure, then cannot be accurate
Ground is monitored to the health of user.For example, if user's heart rate occurs burst change, intelligent terminal cannot be carried out to which
Accurately detect, then user probably occurs life danger.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of physio-parameter detection method and device, to solve intelligent terminal's
When there is the liquid such as perspiration at the position of photosensitive sensors, the problem of normal physiological parameter measurement is affected.
In a first aspect, a kind of physio-parameter detection method is embodiments provided, including：
When physiological parameter error-detecting event is monitored, by being arranged on photoplethysmographic tracing PPG sensings
Humidity sensor at device detects the humidity value at the PPG sensors；
If the humidity value that the humidity sensor is detected exceedes the humidity threshold of setting, send and there is physiological parameter survey
The prompting of amount error.
Second aspect, the embodiment of the present invention additionally provide a kind of physiological parameter detecting device, including：
Humidity detecting module, for when physiological parameter error-detecting event is monitored, by being arranged on photoelectricity volume arteries and veins
The humidity sensor fought at ripple tracing PPG sensors detects the humidity value at the PPG sensors；
Prompting sends module, if exceeding the humidity threshold of setting for the humidity value that the humidity sensor is detected,
Send the prompting that there is physiological parameter measurement error.
Physio-parameter detection method and device provided in an embodiment of the present invention, is monitoring physiological parameter error-detecting event
When, the humidity value of PPG sensors is detected by being arranged on the humidity sensor at PPG sensors, and in the temperature value for detecting
During more than setting humidity threshold, the prompting that there is physiological parameter measurement error is sent, point out user to be given birth to after being adjusted again
The measurement of reason parameter.Realize the accuracy to physiological parameter measurement to exercise supervision automatically, solve at the position of PPG sensors
When there is the liquid such as perspiration, the problem of normal physiological parameter measurement affected, it is to avoid because entering to the condition of user
Row is accurately supervised, so as to cause situation about causing danger.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, other of the invention
Feature, objects and advantages will become more apparent upon：
Fig. 1 a are a kind of flow charts of physio-parameter detection method that the embodiment of the present invention one is provided；
Fig. 1 b are the intelligent watch structure charts that the embodiment of the present invention one is provided；
Fig. 2 is a kind of flow chart of physio-parameter detection method that the embodiment of the present invention two is provided；
Fig. 3 is a kind of structure chart of physiological parameter detecting device that the embodiment of the present invention three is provided.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than full content are illustrate only in description, accompanying drawing.
It also should be noted that, for the ease of description, illustrate only in accompanying drawing part related to the present invention rather than
Full content.It should be mentioned that some exemplary embodiments are described before exemplary embodiment is discussed in greater detail
Into the process or method described as flow chart.Although operations (or step) to be described as flow chart the process of order,
Be many of which operation can by concurrently, concomitantly or while implement.Additionally, the order of operations can be by again
Arrange.The process when its operations are completed can be terminated, it is also possible to have the additional step being not included in accompanying drawing.
The process can correspond to method, function, code, subroutine, subprogram etc..
Embodiment one
Fig. 1 a are a kind of flow charts of physio-parameter detection method that the embodiment of the present invention one is provided.The method of the present embodiment
Can be performed by physiological parameter detecting device, described device can be realized by way of software and/or hardware, and typically can be integrated
In intelligent terminal.As shown in Figure 1a, the physio-parameter detection method that the present embodiment is provided is specifically included：
S110, when physiological parameter error-detecting event is monitored, by being arranged on photoplethysmographic tracing PPG
Humidity sensor at sensor detects the humidity value at the PPG sensors.
The intelligent terminal such as intelligent watch, motion bracelet, mobile phone are more and more containing various measurement blood glucose, blood pressure, heart rate
Deng sensor.Realize and in daily life the physiological parameter of user is measured.Physiological parameter is blood glucose, blood pressure, the heart
Rate and respiratory frequency etc. can represent the parameter of user's body state.PPG is a kind of typical non-intrusion measurement technology and side
Method, it is based on Biomedical Sensor Techonlogy, by trace the light pipette at tested position (finger tip, ear-lobe, wrist etc.) in real time come
Obtain the microvascular volumetric blood in periphery to change with the pulsating nature that heartbeat is produced.PPG technologies can be to cardiovascular disease
Carry out more early stage, more comprehensively, more accurately predictive diagnosis, particularly can play more effectively in personal health care monitoring
The effect that preventing cardiovascular events occur.In simple terms, PPG sensors are in the reflection or refraction using visible ray in blood
The change of light transmittance, is converted to the signal of telecommunication, the measurement of correspondence physiological parameter.Exemplary, PPG sensors can measure blood oxygen and satisfy
With degree, heart rate, blood pressure, breathing and the isoparametric numerical value of pulse output.
Concrete principle is：When the light beam of certain wavelength is irradiated to skin surface, light beam will be by transmission or reflection mode
Photelectric receiver is sent to, in the process due to the attenuation by absorption effect by integumentary musculature and blood, detector is detected
Light intensity will weaken.Wherein the absorption to light such as skin, muscular tissue be to maintain in whole blood circulation it is invariable,
And the blood in skin, volume changes in pulsation under key role, and material composition also has certain change in blood
Change, then cause absorption of the blood to light to change.It is exemplary, when heart rate is measured, periphery blood volume when the heart contracts
At most, absorbing amount is also maximum, and the light intensity for detecting is minimum.And in diastole, contrast, the light intensity for detecting
Maximum, makes the light intensity that optical receiver is received change in pulsating nature therewith.
In view of PPG sensors are installed on bracelet or wrist-watch measured by wrist vein, light be not easy through,
The measurement of physiological parameter is carried out using reflected light then.Specifically, it is assumed that the luminous numerical value of PPG sensors is 100, integumentary musculature group
Knit and absorb constant 10, blood is always absorbed as 15, be 100-10*2-15=65 after that reflection, then arterial blood comes, erythrocyte
Oxygen-containing to increase, blood always absorbs and becomes 2 times, is 50 after that reflection, and reflected light can be constantly in 65-50-65-50-65- afterwards
The such values of 50-65-50-65-50 ..., by calculating how many times pulse change per second, just draw the heart rate of human body.
But the principle of PPG sensors determines its shortcoming, if having many perspiration, Jiu Huiying between wrist-watch and skin
Ring the reflection of light, then measured value will be inaccurate, and in the present embodiment, intelligent terminal is provided with humidity sensor, described
Whether humidity sensor is arranged on PPG sensing stations sentences and detects PPG sensors and press close at human body skin containing excessive
Moisture.
Specifically, with reference to Fig. 1 b, Fig. 1 b be the embodiment of the present invention one provide intelligent watch structure chart, humidity sensor 2
It is positioned close at the light sensation position 11 of PPG sensors 1 so that humidity sensor 2 can detect that the humidity at light sensation position 11
Value.As shown in Figure 1 b, visible ray can be sent at two light sensation positions 11 when physiological parameter is measured, in order to accurately detect humidity
Value, then arrange two humidity sensors 2 and detect the humidity value at two light sensation positions 11 respectively.The number of humidity sensor can root
According to needing to be configured, can also be able to be multiple for one, the present embodiment is not limited to which.
The light that PPG sensor light sensations part sends is preferably green glow, the green glow signal drift that temperature change is caused to external world
It is minimum, so the visible ray for being used for measuring in the present embodiment physiological parameter is green glow.
Humidity sensor can be electric resistance moisture sensor or capacitance type humidity sensor.Electric resistance moisture sensor
The characteristics of be on substrate cover one layer with film made by wet sensory material, when the water vapor adsorption in air is on humidity-sensitive film,
The resistivity and resistance value of humistor can all change, and be measurable humidity using this characteristic；Condenser type humidity sensor
The humicap of device usually with made by macromolecule membrane electric capacity, conventional macromolecular material have polystyrene, polyimides,
Butyric acid acetate fiber etc..When ambient humidity changes, the dielectric constant of humicap changes so as to which capacitance is also sent out
Changing, its capacitance change are directly proportional to relative humidity.
If the humidity value that S120, the humidity sensor are detected exceedes the humidity threshold of setting, send and there is physiology
The prompting of parameter measurement error.
If the humidity value that humidity sensor is detected exceedes the humidity threshold of setting, send and there is physiological parameter measurement mistake
Poor prompting, points out user to be measured after being adjusted again.
Specifically, sending the prompting that there is physiological parameter measurement error includes：Sent by sound and there is physiological parameter survey
The prompting of amount error；Or the prompting that there is physiological parameter measurement error is sent by warning lamp.
It is exemplary, if the humidity value that humidity sensor is detected has exceeded threshold value, intelligent terminal can send " too "
Caution sound or send the voice of " measurement wrong, please remeasure after adjusting "；Or, by lighting screen or lighting warning
Lamp is reminding user.
On the basis of above-described embodiment, the intelligent terminal can carry out physiological parameter error for a period of time every identical
Detecting event, to detect to the humidity value at PPG sensing stations for a long time；Or can when physio-parameter detection is carried out,
Carry out physiological parameter error-detecting event；Furthermore it is also possible to after physio-parameter detection instruction is received, carry out physiological parameter mistake
Difference detecting event, when humidity value is confirmed not less than the temperature threshold for setting, then the detection for carrying out physiological parameter.
The physio-parameter detection method that the embodiment of the present invention one is provided, when physiological parameter error-detecting event is monitored,
The humidity value of PPG sensors is detected by being arranged on the humidity sensor at PPG sensors, and is exceeded in the temperature value for detecting
During setting humidity threshold, the prompting that there is physiological parameter measurement error is sent, point out user physiology ginseng to be carried out again after being adjusted
Several measurements.Realize the accuracy to physiological parameter measurement to exercise supervision automatically, solve
During the liquid such as perspiration, the problem of normal physiological parameter measurement affected, it is to avoid because carrying out standard to the condition of user
True supervision, so as to cause situation about causing danger.
Embodiment two
Fig. 2 is a kind of flow chart of physio-parameter detection method that the embodiment of the present invention two is provided.The present embodiment is to above-mentioned
Embodiment one is optimized, and specifically, in the present embodiment, when physio-parameter detection instruction is received, produces the life
Reason parameter error detecting event, the physio-parameter detection method include：
S210, when receiving physio-parameter detection and instructing, produce the physiological parameter error-detecting event.
S220, the humidity sensor detection PPG by being arranged at photoplethysmographic tracing PPG sensors
Humidity value at sensor.
If after receiving physio-parameter detection instruction, carrying out the detection of physiological parameter error, obtain in humidity sensor
Humidity value not less than setting humidity threshold when, then carry out the detection of physiological parameter, this process is time-consuming longer, inefficient.
If carrying out physiological parameter error-detecting event at intervals, may there is high humidity in humidity within interval time
The situation of threshold value, then intelligent terminal may measure physiological parameter within interval time so that the physiological parameter data of acquisition is not
It is enough accurate.Exemplary, if the measurement of a humidity value was carried out every 3 minutes, in the interval of 3 minutes, it is possible to carry out
The measurement of physiological parameter, then now may humidity value exceeded temperature threshold, but intelligent terminal fails to detect.
In the present embodiment, when physio-parameter detection instruction is received, physiological parameter error-detecting event is produced so that raw
The detection of reason parameter and the detection of physiological parameter error are simultaneously carried out, save intelligent terminal obtain precise physiological parameter value when
Between, while accurate physiologic parameter value can be obtained.
The physiologic parameter value that S230, the acquisition PPG sensors are detected.
The physiologic parameter value include it is following at least one：Respiratory frequency value, heart rate value and blood oxygen levels.
For blood oxygen levels, because under user's different conditions, in blood the content of oxygen be it is different, it is blood red using tremulous pulse
The albumen characteristic different to the absorbance of light with hemoglobin, can be with through the attenuation degree of the different light of blood by measurement
Converse their contents in blood.So as to obtain the blood oxygen levels of user.The motion shape of user be may determine that according to blood oxygen levels
State, for example, user whether carrying out aerobatic exercise or anaerobic exercise, and to user's cardiovascular disease and respiratory system disease
Prevented.
The also measurable respiratory frequency value of PPG sensors, sent out using digital filtering, wavelet transformation and power spectrum etc., from pulse
Respiratory frequency is demodulated in ripple, so as to realize the measurement of respiratory frequency.Respiratory frequency is that the handicapped sensitivity of acute respiration refers to
Mark, and weigh people's cardiac function quality and the whether normal important indicator of gas exchange.So filling on intelligent terminal
The PPG sensors of measurement respiratory frequency value are carried, is easy to user to be monitored and prevent respiratory disorder and cardiac function disease.
If the humidity value that S240, the humidity sensor are detected exceedes the humidity threshold, pass according to the humidity
The humidity value that sensor is detected, is modified to the physiologic parameter value.
The physiologic parameter value that PPG sensors are detected, and the humidity value that humidity sensor is detected are obtained respectively, if humidity
Value has exceeded humidity threshold, then according to the humidity value of humidity sensor detection, physiologic parameter value is modified, then can obtain standard
True physiologic parameter value.
Before the method for the present embodiment is carried out, humidity value can be obtained through test of many times corresponding with physiologic parameter value
Relation.For example, can survey by same person when humidity value is not less than humidity threshold and the DIFFERENT WET angle value more than humidity threshold
The physiologic parameter value that amount is obtained, obtains the change curve of humidity value and physiologic parameter value.And according to the curve acquisition physiological parameter
Numerical relation between value and humidity value, and the correction formula of physiologic parameter value is obtained according to the numerical relation.
The present embodiment can not be sent and there is physiology ginseng when the humidity value that humidity sensor is detected exceedes humidity threshold
The prompting of measurement error is counted, directly the physiologic parameter value to measuring is modified.User need to only check the numerical value of last display i.e.
Can.The scheme of the present embodiment so that in the case that user has perspiration between PPG sensors and skin, can directly obtain
Accurate physiologic parameter value, it is not necessary to perspiration is cleaned out, the measurement of heart rate is carried out again.
The present embodiment two when physio-parameter detection instruction is received, produces physiology ginseng on the basis of above-described embodiment
Number error-detecting event so that the detection of physiological parameter and the detection of physiological parameter error are carried out simultaneously, improve physiological parameter
Measurement efficiency, and when the humidity value that humidity sensor is detected exceedes humidity threshold, it is wet that foundation humidity sensor is detected
Angle value, the physiologic parameter value to being detected by PPG sensors are modified, and make user when measurement has error, can be fast
Speed obtains revised physiologic parameter value, without re-starting the adjustment such as wiping, then measures again, convenient
The use of user, improves Consumer's Experience.
Embodiment three
Fig. 3 is a kind of structure chart of physiological parameter detecting device that the embodiment of the present invention three is provided, and the device is configured in
In intelligent terminal.As shown in figure 3, described device can include：Humidity detecting module 31 and prompting send module 32.
Wherein, humidity detecting module 31, for when physiological parameter error-detecting event is monitored, by being arranged on photoelectricity
Humidity sensor at volume pulsation wave tracing PPG sensors detects the humidity value at the PPG sensors；
Prompting sends module 32, if exceeding the humidity threshold of setting for the humidity value that the humidity sensor is detected,
The prompting that there is physiological parameter measurement error is sent then.
The physiological parameter detecting device that the embodiment of the present invention three is provided, when physiological parameter error-detecting event is monitored,
The humidity value of PPG sensors is detected by being arranged on the humidity sensor at PPG sensors, and is exceeded in the temperature value for detecting
During setting humidity threshold, the prompting that there is physiological parameter measurement error is sent, point out user physiology ginseng to be carried out again after being adjusted
Several measurements.Realize the accuracy to physiological parameter measurement to exercise supervision automatically, solve
During the liquid such as perspiration, the problem of normal physiological parameter measurement affected, it is to avoid because carrying out standard to the condition of user
True supervision, so as to cause situation about causing danger.
In an example of the present embodiment, optionally, described device can also include：
Event generation module, for when physio-parameter detection instruction is received, producing the physiological parameter error-detecting
Event.
Optionally, described device can also include：
Parameter acquisition module, for detecting the PPG sensors by being arranged on the humidity sensor at PPG sensors
After the humidity value at place, the physiologic parameter value that the PPG sensors are detected is obtained；
Parameters revision module, if exceeding the humidity threshold for the humidity value that the humidity sensor is detected, according to
According to the humidity value that the humidity sensor is detected, the physiologic parameter value is modified.
Optionally, the physiologic parameter value include it is following at least one：Respiratory frequency value, heart rate value and blood oxygen levels.
Optionally, the prompting sends module, specifically for：
The prompting that there is physiological parameter measurement error is sent by sound；Or
The prompting that there is physiological parameter measurement error is sent by warning lamp.
Device described in the present embodiment produces physiological parameter error-detecting thing when physio-parameter detection instruction is received
Part so that the detection of physiological parameter and the detection of physiological parameter error are carried out simultaneously, the measurement efficiency of raising physiological parameter, and
When the humidity value that humidity sensor is detected exceedes humidity threshold, the humidity value detected according to humidity sensor, to by PPG
The physiologic parameter value that sensor is detected is modified, and makes user when measurement has error, can quick obtaining it is revised
Physiologic parameter value, without re-starting the adjustment such as wiping, is then measured again, and the use of convenient user is carried
High Consumer's Experience.
Said apparatus can perform the physio-parameter detection method provided by any embodiment of the present invention, possess execution method phase
The functional module answered and beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of physio-parameter detection method, it is characterised in that include：
When physiological parameter error-detecting event is monitored, by being arranged at photoplethysmographic tracing PPG sensors
Humidity sensor detect the humidity value at the PPG sensors；
If the humidity value that the humidity sensor is detected exceedes the humidity threshold of setting, send and there is physiological parameter measurement mistake
Poor prompting.
2. method according to claim 1, it is characterised in that include：
When physio-parameter detection instruction is received, the physiological parameter error-detecting event is produced.
3. method according to claim 2, it is characterised in that by the humidity sensor inspection being arranged at PPG sensors
After the humidity value surveyed at the PPG sensors, including：
Obtain the physiologic parameter value that the PPG sensors are detected；
If the humidity value that the humidity sensor is detected exceedes the humidity threshold, detect according to the humidity sensor
Humidity value, the physiologic parameter value is modified.
4. method according to claim 3, it is characterised in that the physiologic parameter value include it is following at least one：
Respiratory frequency value, heart rate value and blood oxygen levels.
5. the method according to any one of claim 1-4, it is characterised in that send and there is carrying for physiological parameter measurement error
Show, including：
The prompting that there is physiological parameter measurement error is sent by sound；Or
The prompting that there is physiological parameter measurement error is sent by warning lamp.
6. a kind of physiological parameter detecting device, it is characterised in that include：
Humidity detecting module, for when physiological parameter error-detecting event is monitored, by being arranged on photoplethysmographic
Humidity sensor at tracing PPG sensors detects the humidity value at the PPG sensors；
Prompting sends module, if exceeding the humidity threshold of setting for the humidity value that the humidity sensor is detected, sends
There is the prompting of physiological parameter measurement error.
7. device according to claim 6, it is characterised in that also include：
Event generation module, for when physio-parameter detection instruction is received, producing the physiological parameter error-detecting event.
8. device according to claim 7, it is characterised in that also include：
Parameter acquisition module, for detecting at the PPG sensors in the humidity sensor by being arranged at PPG sensors
After humidity value, the physiologic parameter value that the PPG sensors are detected is obtained；
Parameters revision module, if exceeding the humidity threshold for the humidity value that the humidity sensor is detected, according to institute
The humidity value that humidity sensor is detected is stated, the physiologic parameter value is modified.
9. device according to claim 8, it is characterised in that the physiologic parameter value include it is following at least one：
Respiratory frequency value, heart rate value and blood oxygen levels.
10. the device according to any one of claim 6-9, it is characterised in that the prompting sends module, specifically for：
The prompting that there is physiological parameter measurement error is sent by sound；Or
The prompting that there is physiological parameter measurement error is sent by warning lamp.
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