CN111000545A - Wearable device heart rate metering device and method for simulating blood pulsation - Google Patents
Wearable device heart rate metering device and method for simulating blood pulsation Download PDFInfo
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- A—HUMAN NECESSITIES
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- 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
- A61B5/024—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
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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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- 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
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Abstract
The invention discloses a wearable device heart rate metering device and method for simulating blood pulsation, wherein the device comprises a bionic wrist, a heart rate testing module, a rotating speed monitoring module, a power supply module and a display and control system; the heart rate test module includes dwang, shaft coupling, motor and speed governing module, bionical wrist is used for fixed wearable equipment, bionical wrist is connected with the dwang, and the dwang passes through the shaft coupling to be connected with the motor, through the rotational speed of speed governing module control motor, the dwang includes an cambered surface and a cross-section, and cambered surface and cross-section have different absorptivities, and wearable equipment measures the different wave forms light intensity of reflection and calculates and measure the heart rate value. According to the invention, the light absorption rate is changed by the motor rotating rod to simulate a regular heart rate signal to the wearable device, then the rotating speed of the rotating rod is measured to obtain a standard heart rate value, and the standard heart rate value and the heart rate display value of the wearable device are calculated to judge whether the heart rate indication value meets the requirement or not, so that the problem of tracing the wearable device is solved.
Description
Technical Field
The invention belongs to the technical field of wearable equipment, and particularly relates to a wearable equipment heart rate metering device and method for simulating blood pulsation.
Background
With the advent of more and more wearable devices, the smart wearable market is held to great promise. Compared with the market growth speed of the blowout type, the industry standard of wearable products is in serious shortage. However, no application standard specially aiming at the intelligent wearable equipment exists at present, and the intelligent wearable products are supervised by various countries according to related standards and specifications mainly from the fields of communication and medical appliances. When entering the U.S. market, electronic intelligent wearable devices generally apply for FCC authentication like smart watches, smart bracelets, smart glasses, and the like. In order to freely circulate in the European Union market, the consumer electronic intelligent wearable equipment needs to pass CE authentication and be attached with a 'CE' mark.
At present, no national or industrial standard related to intelligent wearing is published in China. In view of the requirements of safety and environmental protection, China restricts and prohibits toxic and harmful substances in electronic information products to adopt a 'catalog management' mode, and products entering the catalog are required to be subjected to 3C authentication. Because the field of the intelligent wearable equipment is relatively advanced, the national technical detection standard is not provided at home at present, and the wearable equipment industry is not classified into catalogues. But in most channel promotions, the product will still be required to be 3C certified.
Most wearable products on the market at present have the related functions of health and sports, and the heart rate is one of the main functions. The principle of heart rate monitoring is generally ppg (photoplethysmography), which is a principle in which a sensor in contact with the skin of a bracelet emits a beam of light that impinges on the skin and measures the reflected/transmitted light. When the user's heart beats, more blood flows through the user's wrist and the amount of green light absorbed is greater. In the beating interval of the heart, the blood flow is reduced, so that the absorption of green light is reduced, and the heartbeat can be determined. However, the disadvantage is that it consumes a lot of power and is also disturbed by ambient light. The function of smart bracelet or wrist-watch monitoring heart rate on the market at present has mostly adopted the photoelectricity transmission measurement method.
The accuracy of wearable equipment measurement is mainly detected by adopting manual evaluation and a wrist blood circulation simulation device in the prior art, but certain defects exist:
the manual evaluation is the main test method at present, and the manual evaluation is mainly carried out in a clinical medicine mode and has three main defects: firstly, measuring points can not be selected according to needs, and the number of the measured points is the number of the measured points; secondly, the value cannot be traced by taking the human body signal as a standard, and the measurement requirement cannot be met; thirdly, the comparison is carried out through the human body, the error of the measured heart rate value is large, and the influence of personal body difference factors cannot be eliminated.
The main drawbacks of the analog wrist device are: firstly, complex and expensive facilities such as pipelines, pumps, human wrist tissues and the like need to be constructed, and the price is high and complicated; secondly, the device is large and not easy to carry; thirdly, the heart rate tracing source is transmitted to the wrist tissue of the simulated human body through the rotation frequency of the pump, and the accuracy of the heart rate tracing source is influenced due to the pipeline, the pressure and other reasons.
Disclosure of Invention
The invention mainly aims to overcome the defects in the prior art, provides a wearable device heart rate metering device for simulating blood pulsation, and solves the problem that the heart rate value of the wearable device cannot be traced.
Another object of the present invention is to provide a metering method of a wearable heart rate meter device simulating blood pulsation.
In order to achieve the first purpose, the invention adopts the following technical scheme:
a wearable device heart rate metering device capable of simulating blood pulsation comprises a bionic wrist, a heart rate testing module, a rotating speed monitoring module, a power supply module and a display and control system, wherein the bionic wrist is connected with the heart rate testing module, the rotating speed monitoring module is connected with the heart rate monitoring module, the display and control system is connected with the heart rate testing module and the rotating speed monitoring module, and the power supply module supplies power to the heart rate monitoring module, the rotating speed monitoring module and the display and control system; the heart rate test module includes dwang, shaft coupling, motor and speed governing module, bionical wrist is used for fixed wearable equipment, bionical wrist is connected with the dwang, and the dwang passes through the shaft coupling to be connected with the motor, through the rotational speed of speed governing module control motor, the dwang includes an cambered surface and a cross-section, and cambered surface and cross-section have different absorptivities, and wearable equipment measures the different wave forms light intensity of reflection and calculates and measure the heart rate value.
According to a preferable technical scheme, the rotating speed monitoring system comprises a rotating speed measuring probe and a rotating speed measuring module, the rotating speed measuring module measures the rotating speed of the motor through the rotating speed probe, and measured data serve as a standard heart rate value.
As the preferred technical scheme, a bionic blood vessel is arranged inside the bionic wrist, and the rotating shaft is inserted into the bionic blood vessel.
As preferred technical scheme, the dwang stretches into bionical intravascular rotation, and wearable equipment transmission green glow shines to the dwang, has different light absorption rate because of cambered surface and cross-section, reflects back wearable equipment photosensitive sensor and forms regular strong light signal weak.
As a preferred technical scheme, the front section rod of the rotating rod is cut along the sagittal plane to obtain one section, and the section of the front section rod is polished and sprayed with black paint to form a section with different light absorption rate from the rest cambered surfaces.
As the preferred technical scheme, the motor drives the treated rotating rod connected to the coupler to coaxially rotate, and the rotating rod rotates to change the light absorption rate in the bionic blood vessel.
As a preferred technical scheme, the display and control module is used for displaying the information of the rotating speed standard heart rate value and controlling the speed regulating module to regulate the rotating speed of the motor.
In order to achieve the other purpose, the invention adopts the following technical scheme:
a metering method of a wearable device heart rate metering device simulating blood pulsation comprises the following steps:
fixing the wearable device on the bionic wrist, and aligning the bottom optical sensor to the position above the bionic blood vessel;
the rotating rod extends into the bionic blood vessel, and is connected with the motor through the coupler to coaxially rotate together;
adjusting the rotating speed to be the lowest, turning on a power supply, and starting the motor to rotate;
controlling the rotating speed to the point to be measured, and rotating the rotating rod in the bionic blood vessel to obtain a measurement heart rate value of the wearable device;
the rotating speed measuring module measures the rotating speed of the motor through a rotating speed probe, and measured data are used as standard heart rate values;
and comparing the standard heart rate value with the wearable equipment measurement heart rate value to obtain a heart rate error, and judging whether the wearable equipment is qualified or not according to the heart rate error.
As a preferred technical solution, the measured heart rate value is obtained by the following method:
the motor drives the rotating rod to rotate inside the bionic blood vessel, so that the light absorption rate in the bionic blood vessel is changed, reading records are carried out for many times after the rotation of the motor is stable, and the optical sensor in the wearable equipment calculates a corresponding measurement heart rate value by reflecting different strength signals;
as a preferable technical scheme, the method further comprises the following steps:
and generating corresponding tables and curves by using the standard heart rate value, the measured heart rate value and the measurement error.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the method, the light absorption rate is changed by the motor rotating rod to simulate the regular heart rate signal to the wearable device, the rotating speed of the rotating rod is measured to obtain the standard heart rate value, the standard heart rate value and the heart rate display value of the wearable device are calculated to judge whether the heart rate indication value meets the requirement or not, the heart rate metering method of the wearable device is completed, and the problem of tracing the wearable device is solved.
(2) The method can accurately calculate the heart rate value of the wearable device, greatly reduce errors and has strong reliability.
(3) The method avoids the use of a clinical medical method for heart rate comparison, is simple and easy to operate, and can measure the equipment by connecting the wearable equipment to the calibrator without using a human body as an experimental object.
Drawings
FIG. 1 is a block schematic diagram of a wearable device heart rate metering device of the present invention;
FIG. 2 is a schematic diagram of a hardware structure device of a wearable device heart rate metering device of the invention;
FIG. 3 is a schematic view of a biomimetic blood vessel and a wearable device secured thereto in accordance with the present invention;
FIG. 4 is a view of the treated rotating shaft of the present invention connected to a coupling;
fig. 5 is a flow chart of a method of the wearable device heart rate metering device of the present invention.
The reference numbers illustrate: 1-bionic wrist; 2-heart rate testing module; 21-rotating rod; 22-a coupling; 23-a motor; 24-a speed regulation module; 3-a rotation speed monitoring module; 31-a rotational speed measuring probe; 32-a rotation speed measuring module; 4-a speed regulating module; 5-a display and control system; 6-a wearable device; 7-a biomimetic blood vessel; 8-cambered surface; 9-section.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Examples
As shown in fig. 1 and 2, the wearable device heart rate metering device for simulating blood pulsation in the embodiment includes a bionic wrist 1, a heart rate testing module 2, a rotation speed monitoring module 3, a power supply module 4 and a display and control system 5, wherein the bionic wrist 1 is connected with the heart rate testing module 2, the rotation speed monitoring module 3 is connected with the heart rate monitoring module 2, the display and control system 5 is connected with the heart rate testing module 2 and the rotation speed monitoring module 3, and the power supply module 4 supplies power to the heart rate monitoring module 2, the rotation speed monitoring module 3 and the display and control system 5; the heart rate testing module 2 comprises a rotating rod 21, a coupler 22, a motor 23 and a speed regulating module 24, the bionic wrist is used for fixing the wearable device 6, the bionic wrist 1 is connected with the rotating rod 21, the rotating rod 21 is connected with the motor 23 through the coupler 22, and the rotating speed of the motor 23 is controlled through the speed regulating module 24; the rotating speed monitoring module 3 comprises a rotating speed measuring probe 31 and a rotating speed measuring module 32, the rotating speed measuring module measures the rotating speed of the motor through the rotating speed probe, and measured data serve as a standard heart rate value. The method changes the light absorption rate to simulate regular heart rate signals to the wearable equipment through the rotating rod of the motor, measures the rotating speed of the rotating rod to obtain a standard heart rate value, and calculates the standard heart rate value and the heart rate display value of the wearable equipment to judge whether the heart rate display value meets the requirement or not
Further, as shown in fig. 3, the bionic wrist 1 provides a fixing function of a wearable device 6, in which a bionic blood vessel 7 (the bionic blood vessel is a general device, such as an arm wrist of an infusion injection model) is contained, a rotating rod can be inserted into the bionic blood vessel for rotating, and a photosensitive sensor of the wearable device is aligned with the bionic blood vessel 7 so as to sense the change of an optical signal.
Further, as shown in fig. 4, the rotating rod is an arc surface 8 and a section 9, the arc surface 8 and the section 9 have different absorbances, and the wearable device measures reflected light with different waveform light intensities to calculate a measurement heart rate value; the different absorption rates of the rotating rods are processed by the following method:
the anterior segment pole of dwang cuts along the sagittal plane and gets one of them section, polishes, spouts black lacquer on its cross-section, forms the cross-section that has different light absorptance with other cambered surfaces. The dwang stretches into bionical intravascular rotation, and wearable equipment transmits green glow and shines to the dwang, has different light absorption rate because of cambered surface and cross-section, reflects back wearable equipment photosensitive sensor and forms regular strong weak light signal, and this principle leads to the regular change of intravascular light absorption rate unanimous with human blood pulsation), so imitate human blood pulsation through this method. The optical sensor in the wearable device can calculate the corresponding measured heart rate value by reflecting back signals with different intensities. When the motor drives the treated rotating rod connected to the coupler to coaxially rotate, the rotating rod rotates to change the light absorption rate in the bionic blood vessel.
Furthermore, the motor and the speed regulation module can provide continuous, stable and adjustable mechanical rotation according to measurement requirements, and the transmission rod is driven through the coupler. The rotating speed measuring module measures the rotating speed of the motor through the rotating speed probe, and measured data serve as standard values to be compared with measured values of the wearable device.
Furthermore, the power module supplies power to the metering device, the display and control panel can display the standard value information of the rotating speed, and the speed regulating module is controlled to regulate the rotating speed of the motor.
In this embodiment, the whole set of metering device controls the motor to provide a standard rotating speed through the speed regulating module, and the rotating speed measuring module measures the rotating speed standard value to obtain the standard heart rate value. The motor drives the treated rotating rod connected to the coupler to rotate coaxially, and the rotating rod rotates to change the light absorption rate in the bionic blood vessel. Wearable equipment measures and reflects different wave forms light intensity and calculates the measurement heart rate value, compares with the standard heart rate mark that the rotational speed standard value calculated and calculates, reachs heart rate measurement error, judges whether meet the demands.
As shown in fig. 5, another embodiment of the present invention further provides a metering method of a wearable device heart rate metering device simulating blood pulsation, comprising the following steps:
s101, fixing wearable equipment on a bionic wrist, and aligning a bottom optical sensor to the position above a bionic blood vessel;
s102, extending a rotating rod into the bionic blood vessel, wherein the rotating rod is connected with a motor through a coupler and coaxially rotates together;
s103, adjusting the rotating speed to be the lowest, turning on a power supply, and starting the motor to rotate;
s104, controlling the rotating speed to a point to be measured, and rotating the rotating rod in the bionic blood vessel to obtain a measurement heart rate value of the wearable device; the measured heart rate value is calculated by:
the motor drives the rotating rod to rotate inside the bionic blood vessel, so that the light absorption rate in the bionic blood vessel is changed, reading records are carried out for many times after the rotation of the motor is stable, and the optical sensor in the wearable equipment calculates a corresponding measurement heart rate value by reflecting different strength signals;
s105, the rotating speed measuring module measures the rotating speed of the motor through a rotating speed probe, and measured data serve as a standard heart rate value;
s106, comparing the standard heart rate value with the wearable device measurement heart rate value to obtain a heart rate error, and judging whether the wearable device is qualified or not according to the heart rate error.
S107, generating a corresponding table and a corresponding curve by using the standard heart rate value, the measured heart rate value and the measurement error;
wearable device display value-standard heart rate value
The standard heart rate value is the measured value of the rotating speed measuring module, the heart rate value is set to be the rotating speed of the motor, a table and a curve graph are generated, and data are integrated into the table and the curve.
According to the method, the light absorption rate is changed by the motor rotating rod to simulate the regular heart rate signal to the wearable device, the rotating speed of the rotating rod is measured to obtain the standard heart rate value, and the standard heart rate value and the heart rate display value (the measured heart rate value) of the wearable device are calculated to judge whether the heart rate display value meets the requirement or not, so that the heart rate metering method of the wearable device is completed, and the problem of traceability of the wearable device is solved.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A wearable device heart rate metering device for simulating blood pulsation is characterized by comprising a bionic wrist, a heart rate testing module, a rotating speed monitoring module, a power supply module and a display and control system, wherein the bionic wrist is connected with the heart rate testing module, the rotating speed monitoring module is connected with the heart rate monitoring module, the display and control system is connected with the heart rate testing module and the rotating speed monitoring module, and the power supply module supplies power to the heart rate monitoring module, the rotating speed monitoring module and the display and control system; the heart rate test module includes dwang, shaft coupling, motor and speed governing module, bionical wrist is used for fixed wearable equipment, bionical wrist is connected with the dwang, and the dwang passes through the shaft coupling to be connected with the motor, through the rotational speed of speed governing module control motor, the dwang includes an cambered surface and a cross-section, and cambered surface and cross-section have different absorptivities, and wearable equipment measures the different wave forms light intensity of reflection and calculates and measure the heart rate value.
2. The wearable device heart rate metering device for simulating blood pulsation according to claim 1, wherein the rotation speed monitoring system comprises a rotation speed measuring probe and a rotation speed measuring module, the rotation speed measuring module measures the rotation speed of the motor through the rotation speed measuring probe, and the measured data is used as a standard heart rate value.
3. The wearable device heart rate measurement device for simulating blood pulsation according to claim 1, wherein a bionic blood vessel is disposed inside the bionic wrist, and the rotation shaft is inserted into the bionic blood vessel.
4. The wearable device heart rate metering device for simulating blood pulsation according to claim 3, wherein the rotating rod extends into the bionic blood vessel to rotate, the wearable device transmits green light to irradiate the rotating rod, and the green light and the cross section of the rotating rod have different light absorption rates and are reflected back to the photosensitive sensor of the wearable device to form regular strong and weak light signals.
5. The wearable device heart rate measuring device for simulating blood pulsation according to claim 1, wherein a front section of the rotating rod is cut along a sagittal plane to obtain one section, and the section of the rotating rod is polished and sprayed with black paint to form a section with different light absorption rate from the rest of arc surfaces.
6. The wearable device heart rate metering device for simulating blood pulsation according to claim 1, wherein the motor drives a treated rotating rod connected to the coupler to coaxially rotate, and the rotating rod rotates to change the light absorption rate in the bionic blood vessel.
7. The wearable device heart rate measuring device for simulating blood pulsation according to claim 1, wherein the display and control module is configured to display information of a rotational speed standard heart rate value and control the speed regulation module to regulate the rotational speed of the motor.
8. Method of metering a wearable device heart rate meter simulating blood pulsation according to claims 1-7, characterized in that it comprises the following steps:
fixing the wearable device on the bionic wrist, and aligning the bottom optical sensor to the position above the bionic blood vessel;
the rotating rod extends into the bionic blood vessel, and is connected with the motor through the coupler to coaxially rotate together;
adjusting the rotating speed to be the lowest, turning on a power supply, and starting the motor to rotate;
controlling the rotating speed to the point to be measured, and rotating the rotating rod in the bionic blood vessel to obtain a measurement heart rate value of the wearable device;
the rotating speed measuring module measures the rotating speed of the motor through a rotating speed probe, and measured data are used as standard heart rate values;
and comparing the standard heart rate value with the wearable equipment measurement heart rate value to obtain a heart rate error, and judging whether the wearable equipment is qualified or not according to the heart rate error.
9. The method of claim 8, wherein the measured heart rate value is obtained by:
the motor drives the dwang and rotates at bionical intravascular light absorption rate, and then changes bionical intravascular light absorption rate, carries out reading record many times after the motor rotational stabilization, and optical sensor calculates corresponding measurement heart rate value through reflecting back different intensity signals in the wearable equipment.
10. The method of claim 8, further comprising the steps of:
and generating corresponding tables and curves by using the standard heart rate value, the measured heart rate value and the measurement error.
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Application publication date: 20200414 |