CN113576444A - Pulse rate measuring device - Google Patents
Pulse rate measuring device Download PDFInfo
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- CN113576444A CN113576444A CN202111007723.0A CN202111007723A CN113576444A CN 113576444 A CN113576444 A CN 113576444A CN 202111007723 A CN202111007723 A CN 202111007723A CN 113576444 A CN113576444 A CN 113576444A
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- pulse rate
- pulse signal
- pulse
- infrared detection
- processor
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- 238000001514 detection method Methods 0.000 claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000009532 heart rate measurement Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000036555 skin type Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- A61B5/024—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
- A61B5/7445—Display arrangements, e.g. multiple display units
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
Abstract
The embodiment of the invention provides a pulse rate measuring device which comprises a first infrared detection pair tube, a second infrared detection pair tube, a first filter amplifier, a second filter amplifier, a processor and a display. The first infrared detection geminate transistor and the second infrared detection geminate transistor respectively measure the pulse rate of the user, and the influence of skin color, skin quality and measurement angle can be reduced by comparing and analyzing the measurement results of the two ways of detection, so that the pulse rate measurement precision is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of measurement, in particular to a pulse rate measuring device.
Background
The pulse rate, i.e. the frequency of the arterial pulse, is an important measure for measuring the health status of the body during physical examination. The pulse rate of normal people is usually kept within a certain range, and the possibility of illness of the body is indicated by too high or too low pulse rate. Therefore, the measurement of pulse rate is an essential part of physical examination.
In the prior art, methods for measuring pulse rate are various, and an infrared detection technology is one of the widely used technologies. The equipment for measuring pulsation by using an infrared detection technology generally comprises a pair of infrared detection geminate transistors, wherein the infrared detection geminate transistors emit infrared light to the skin of a human body, the infrared light penetrates through the skin to reach blood vessels, and blood in the blood vessels is in periodic pulsation due to the pulsation of the heart of the human body, so that the infrared light reflected by the blood also comprises the periodic characteristic of the pulsation of the human body. By processing the received infrared light, the pulse rate can be measured and obtained.
However, when the pulse rate is measured by using the infrared detection technology in the prior art, the emission and the reception of infrared light are influenced to a certain extent due to the fact that skin colors and skin types of different people are different and the measuring angles are different, and the measured pulse rate is low in precision.
Disclosure of Invention
The embodiment of the invention provides a pulse rate measuring device, which aims to solve the problem of low pulse rate measuring precision in the prior art.
The embodiment of the invention provides a pulse rate measuring device, which comprises: the system comprises a first infrared detection pair transistor, a second infrared detection pair transistor, a first filter amplifier, a second filter amplifier, a processor and a display;
the first infrared detection pair transistor is connected with the processor through the first filter amplifier, the second infrared detection pair transistor is connected with the processor through the second filter amplifier, and the display is connected with the processor;
the first infrared detection pair transistor is used for collecting a first pulse signal of a user;
the second infrared detection pair transistor is used for collecting a second pulse signal of the user;
the first filtering amplifier is used for filtering and amplifying the first pulse signal and acquiring a third pulse signal;
the second filter amplifier is used for filtering and amplifying the second pulse signal and acquiring a fourth pulse signal;
the processor is used for acquiring the pulse rate of the user according to the third pulse signal and the fourth pulse signal;
the display is used for displaying the pulse rate of the user.
Optionally, the processor is specifically configured to, when an absolute value of a difference between the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal is smaller than a first threshold, take an average value of the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal as the pulse rate of the user.
Optionally, the processor is specifically configured to prompt, through the display, to re-measure when an absolute value of a difference between the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal is greater than or equal to a first threshold.
Optionally, the apparatus further comprises: an alarm;
the alarm is connected with the processor;
the alarm is used for giving an alarm when the pulse rate of the user is larger than a preset first pulse rate or smaller than a preset second pulse rate.
The pulse rate measuring device provided by the embodiment of the invention comprises a first infrared detection pair tube, a second infrared detection pair tube, a first filter amplifier, a second filter amplifier, a processor and a display. The first infrared detection geminate transistor and the second infrared detection geminate transistor respectively measure the pulse rate of the user, and the influence of skin color, skin quality and measurement angle can be reduced by comparing and analyzing the measurement results of the two ways of detection, so that the pulse rate measurement precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pulse rate measuring device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another pulse rate measuring device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problem of low pulse rate measurement precision in the prior art, the pulse rate measurement device provided by the embodiment of the invention improves the pulse rate measurement precision by arranging two detection paths for simultaneous measurement and carrying out contrastive analysis on the measurement results of the two detection paths.
The technical scheme of the pulse rate measuring device provided by the invention is described in detail below with reference to several specific embodiments. Several of the following embodiments may be combined with each other, and details of the same or similar concepts and processes may not be repeated in some embodiments.
Fig. 1 is a schematic structural diagram of a pulse rate measuring device according to an embodiment of the present invention. As shown in fig. 1, the apparatus of the present invention may include: the device comprises a first infrared detection pair tube 11, a second infrared detection pair tube 13, a first filter amplifier 12, a second filter amplifier 14, a processor 15 and a display 16.
The first infrared detection pair transistor 11 is connected with the processor 15 through the first filter amplifier 12, the second infrared detection pair transistor 13 is connected with the processor 15 through the second filter amplifier 14, and the display 16 is connected with the processor 15.
The first infrared detection pair tube 11 is used for collecting a first pulse signal of the user.
The second infrared detection pair transistor 13 is used for collecting a second pulse signal of the user.
The first pair of infrared detecting tubes 11 and the second pair of infrared detecting tubes 13 may have the same structure, and may, for example, each include an infrared emitting tube for receiving infrared light and an infrared receiving tube for receiving reflected infrared light. The specific structure of the infrared detection pair transistor can refer to the prior art, and details are not repeated in this embodiment.
The first infrared detection pair transistor 11 and the second infrared detection pair transistor 13 can simultaneously measure the pulse of the user, the first infrared detection pair transistor 11 measures a first pulse signal of the user, and the second infrared detection pair transistor 13 measures a second pulse signal of the user.
The first filter amplifier 12 is configured to filter and amplify the first pulse signal, and obtain a third pulse signal.
The circuit structure of the first filter amplifier 12 can perform filtering and amplification processing on the first pulse signal, and the circuit structure may include a filtering circuit and an amplifying circuit, or may be a single circuit structure that simultaneously performs filtering and amplifying functions. And filtering and amplifying the first pulse signal to obtain a third pulse signal.
The second filter amplifier 14 is configured to filter and amplify the second pulse signal, and obtain a fourth pulse signal.
The second filter amplifier 14 can refer to the first filter amplifier 12, and will not be described in detail here.
The processor 15 is configured to obtain a pulse rate of the user according to the third pulse signal and the fourth pulse signal.
For example, the processor 15 may be a minimum system of a single chip, and the third pulse signal and the fourth pulse signal may be obtained by obtaining pulse rates of the third pulse signal and the fourth pulse signal through calculation after analog signals are converted into digital signals through analog-to-digital converters (a/D converters) of the single chip, and obtaining the pulse rate measured by the first infrared detection pair transistor 11 and the pulse rate measured by the second infrared detection pair transistor 13.
The display 16 is used to display the pulse rate of the user. Illustratively, the display 16 may be a liquid crystal display.
In one possible implementation, an average of the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal may be taken as the pulse rate of the user.
In another possible implementation manner, when the absolute value of the difference between the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal is smaller than the first threshold, it indicates that the measured pulse rate is more accurate, and at this time, the average value of the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal may be used as the pulse rate of the user. Wherein the first threshold is determined according to actual conditions.
When the absolute value of the difference between the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal is greater than or equal to the first threshold, it indicates that the measured pulse rate is inaccurate, and the display 16 may prompt to re-measure.
The pulse rate measuring device provided by the embodiment of the invention comprises a first infrared detection pair tube, a second infrared detection pair tube, a first filter amplifier, a second filter amplifier, a processor and a display. The first infrared detection geminate transistor and the second infrared detection geminate transistor respectively measure the pulse rate of the user, and the influence of skin color, skin quality and measurement angle can be reduced by comparing and analyzing the measurement results of the two ways of detection, so that the pulse rate measurement precision is improved.
Fig. 2 is a schematic structural diagram of another pulse rate measuring device according to an embodiment of the present invention. As shown in fig. 2, on the basis of fig. 1, the apparatus may further include: and an alarm 17.
Wherein the alarm 17 is connected to the processor 15.
The alarm 17 is used for giving an alarm when the pulse rate of the user is greater than a preset first pulse rate or less than a preset second pulse rate.
Wherein the predetermined first pulse rate and the predetermined second pulse rate are determined by a threshold value of the normal pulse rate range. Through setting up alarm 17, can be when user's pulse rate is unusual, through reporting to the police and indicate that user's rhythm of the heart is unusual, improve user experience.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A pulse rate measurement device, the device comprising: the system comprises a first infrared detection pair transistor, a second infrared detection pair transistor, a first filter amplifier, a second filter amplifier, a processor and a display;
the first infrared detection pair transistor is connected with the processor through the first filter amplifier, the second infrared detection pair transistor is connected with the processor through the second filter amplifier, and the display is connected with the processor;
the first infrared detection pair transistor is used for collecting a first pulse signal of a user;
the second infrared detection pair transistor is used for collecting a second pulse signal of the user;
the first filtering amplifier is used for filtering and amplifying the first pulse signal and acquiring a third pulse signal;
the second filter amplifier is used for filtering and amplifying the second pulse signal and acquiring a fourth pulse signal;
the processor is used for acquiring the pulse rate of the user according to the third pulse signal and the fourth pulse signal;
the display is used for displaying the pulse rate of the user.
2. The apparatus of claim 1, wherein the processor is specifically configured to determine an average of the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal as the pulse rate of the user when an absolute value of a difference between the pulse rate of the third pulse signal and the pulse rate of the fourth pulse signal is less than a first threshold.
3. The apparatus of claim 1, wherein the processor is specifically configured to prompt, via the display, a re-measurement when an absolute value of a difference between a pulse rate of the third pulse signal and a pulse rate of the fourth pulse signal is greater than or equal to a first threshold.
4. The apparatus of any of claims 1-3, further comprising: an alarm;
the alarm is connected with the processor;
the alarm is used for giving an alarm when the pulse rate of the user is larger than a preset first pulse rate or smaller than a preset second pulse rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007723.0A CN113576444A (en) | 2021-08-30 | 2021-08-30 | Pulse rate measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007723.0A CN113576444A (en) | 2021-08-30 | 2021-08-30 | Pulse rate measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN113576444A true CN113576444A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111007723.0A Pending CN113576444A (en) | 2021-08-30 | 2021-08-30 | Pulse rate measuring device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971930A (en) * | 1997-10-17 | 1999-10-26 | Siemens Medical Systems, Inc. | Method and apparatus for removing artifact from physiological signals |
| US20020188210A1 (en) * | 2001-06-11 | 2002-12-12 | Nobuyuki Aizawa | Pulse wave sensor and pulse rate detector |
| CN102098961A (en) * | 2008-05-14 | 2011-06-15 | 埃斯潘美国控股有限责任公司 | Physical activity monitor and data collection unit |
| CN103720467A (en) * | 2013-12-27 | 2014-04-16 | 北京超思电子技术股份有限公司 | Wrist pulse-rate meter |
| CN104382574A (en) * | 2014-11-06 | 2015-03-04 | 李久朝 | Method and system for monitoring sleep quality based on pulse wave data |
| CN105208924A (en) * | 2013-05-15 | 2015-12-30 | 普尔赛昂公司 | Portable pulse measuring device |
| CN112294271A (en) * | 2019-07-30 | 2021-02-02 | 深圳迈瑞生物医疗电子股份有限公司 | Monitor and irregular pulse rate identification method thereof |
-
2021
- 2021-08-30 CN CN202111007723.0A patent/CN113576444A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971930A (en) * | 1997-10-17 | 1999-10-26 | Siemens Medical Systems, Inc. | Method and apparatus for removing artifact from physiological signals |
| US20020188210A1 (en) * | 2001-06-11 | 2002-12-12 | Nobuyuki Aizawa | Pulse wave sensor and pulse rate detector |
| CN102098961A (en) * | 2008-05-14 | 2011-06-15 | 埃斯潘美国控股有限责任公司 | Physical activity monitor and data collection unit |
| CN105208924A (en) * | 2013-05-15 | 2015-12-30 | 普尔赛昂公司 | Portable pulse measuring device |
| CN103720467A (en) * | 2013-12-27 | 2014-04-16 | 北京超思电子技术股份有限公司 | Wrist pulse-rate meter |
| CN104382574A (en) * | 2014-11-06 | 2015-03-04 | 李久朝 | Method and system for monitoring sleep quality based on pulse wave data |
| CN112294271A (en) * | 2019-07-30 | 2021-02-02 | 深圳迈瑞生物医疗电子股份有限公司 | Monitor and irregular pulse rate identification method thereof |
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