CN111035397A - Finger-clip type oxyhemoglobin saturation measuring device and method based on ZigBee technology - Google Patents

Finger-clip type oxyhemoglobin saturation measuring device and method based on ZigBee technology Download PDF

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CN111035397A
CN111035397A CN201911415822.5A CN201911415822A CN111035397A CN 111035397 A CN111035397 A CN 111035397A CN 201911415822 A CN201911415822 A CN 201911415822A CN 111035397 A CN111035397 A CN 111035397A
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oxygen saturation
blood oxygen
pulse wave
finger
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赵瑜
汪玉冰
刘绘
叶慧
王英明
朱玉
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Maanshan College
Hefei Siwill Intelligent Co ltd
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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
    • A61B5/145—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
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    • A—HUMAN NECESSITIES
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    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
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Abstract

The invention provides a finger clip type oxyhemoglobin saturation measuring device based on ZigBee technology, which is characterized by comprising the following components: the device comprises a pulse wave signal acquisition unit, a display unit, a chip control unit and a battery management unit; the pulse wave signal acquisition unit is used for acquiring a blood oxygen saturation detection value; the chip control unit is respectively connected with the display unit and the pulse wave signal acquisition unit; the display unit is used for displaying the blood oxygen saturation detection value acquired by the pulse wave signal acquisition unit under the control of the chip control unit and inputting an editing instruction to the chip control unit; the battery management unit is respectively connected with the pulse wave signal acquisition unit, the display unit and the chip control unit and used for supplying power. The invention enables accurate measurement of blood oxygen and steady-state monitoring to be more convenient and flexible, and enables the system to better serve the development trends of future clinical monitoring, family health and endowment informatization.

Description

Finger-clip type oxyhemoglobin saturation measuring device and method based on ZigBee technology
Technical Field
The invention relates to the technical field of measurement of biomedical science, in particular to a finger-clipped oxyhemoglobin saturation measurement device and method based on a ZigBee technology.
Background
Oximetry is widely used in the field of clinical monitoring for continuously monitoring the pulse and oximetry of surgical, pregnant or critically ill patients. The oximeter is mainly applied to ICU wards and ordinary wards of hospitals, and is integrated with other monitoring equipment to be used as a comprehensive monitoring instrument.
At present, most clinical medical monitoring systems adopt a traditional wiring mode, so that the free movement of patients is limited, and the cavity parts of most existing instruments are difficult to clean and disinfect, so that a lot of inconvenience is caused in practical use. Meanwhile, with the continuous improvement of the development level of social economy, people pay closer attention to health conditions, and the demand on portable measuring instruments such as the blood oxygen saturation degree is larger and larger. Therefore, the portable, wireless and detachable oxyhemoglobin saturation measurement monitoring product has a great market prospect in the aspects of future household use, clinical monitoring and aged-care informatization monitoring.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a finger-clipped oxyhemoglobin saturation measuring device and method based on a ZigBee technology.
The invention provides a finger clip type oxyhemoglobin saturation measuring device based on ZigBee technology, which comprises: the device comprises a pulse wave signal acquisition unit, a display unit, a chip control unit and a battery management unit;
the pulse wave signal acquisition unit is used for acquiring a blood oxygen saturation detection value;
the chip control unit is respectively connected with the display unit and the pulse wave signal acquisition unit; the display unit is used for displaying the blood oxygen saturation detection value acquired by the pulse wave signal acquisition unit under the control of the chip control unit and inputting an editing instruction to the chip control unit;
the battery management unit is respectively connected with the pulse wave signal acquisition unit, the display unit and the chip control unit and used for supplying power.
Preferably, the pulse wave signal acquisition unit comprises an identification module, a calculation module and a denoising module;
the identification module is used for identifying a photoplethysmographic signal transmitted by red light and infrared light after passing through a human finger; the calculation module is used for obtaining the correlation between R and the blood oxygen saturation according to the blood oxygen saturation definition and the Lambert-beer law and obtaining the blood oxygen saturation through the blood oxygen saturation SPO2Obtaining the blood oxygen saturation degree by comparing the light absorption ratio R with a calibration curve; the denoising module is used for removing ambient light interference signals and motion interference signals which occur in the collection process of the photoelectric volume pulse wave signals.
Preferably, the chip control unit includes: the device comprises a chip module, an initialization module, a channel selection module and a communication module; the chip module is respectively connected with the denoising module, the display unit, the initialization module, the channel selection module and the communication module; the initialization module is used for initializing and calling communication parameters set in the chip module, the channel selection module is used for selecting a communication channel under the current communication condition according to a preset channel selection mode, and the communication module is used for performing data transmission through the communication channel selected by the channel selection module; and the chip module acquires and processes the data denoised by the denoising module and then transmits the data through the communication module.
Preferably, the chip module adopts a CC2530 chip.
Preferably, the battery management unit comprises a battery module and a charging module, the battery module adopts a lithium battery, and the charging module adopts a USB3.0 interface.
Preferably, the display module adopts an OLED touch display screen.
A finger-clipped oxyhemoglobin saturation measuring method based on ZigBee technology comprises the steps of firstly collecting photoplethysmographic signals transmitted by red light and infrared light after the red light and the infrared light pass through human tissues, and then calculating according to Lambert-beer law to obtain a value of oxyhemoglobin saturation.
Preferably, the method specifically comprises the following steps:
s1, obtaining the absorption quantity of red and infrared light respectively according to the change of artery blood flow by the transmission method, and respectively recording the absorption quantity as AC660nmAnd AC940nm(ii) a And acquiring the red and infrared light absorption amounts of tissues at the transmission part except the artery blood flow, and recording the red and infrared light absorption amounts as DC660nmAnd DC940nm；
S2, calculating the light absorption ratio R according to the obtained multiple light absorption quantities, and according to the preset blood oxygen saturation SPO2And obtaining the blood oxygen saturation degree by a light absorption ratio R calibration curve.
Preferably, in step S2, the light absorption ratio R is calculated by:
firstly, determining a calculation formula of the light absorption rate:
Figure BDA0002351166780000031
then, the light absorption rate is normalized according to the following formula, and the final light absorption rate is obtained as follows:
Figure BDA0002351166780000032
wherein maxR is the R 'value corresponding to the red light signal when taking the peak value mean value, minR is the R' value corresponding to the red light signal when taking the trough value mean value, maxR is the R 'value corresponding to the infrared light signal when taking the peak value mean value, and minIR is the R' value corresponding to the infrared light signal when taking the trough value mean value.
Preferably, the blood oxygen saturation level SPO2And the calibration curve of the light absorption ratio R is as follows:
SPO2＝-20.85R2+0.149R+104.6。
the invention relates to a finger-clipped oxyhemoglobin saturation measuring device and method based on ZigBee technology, which adopts a lithium ion polymer battery and a USB interface for charging, thereby solving the problem of long-time working power supply of an instrument; eliminating interference signals in the measuring process by adopting an analog front end and a built-in function; meanwhile, the ZigBee technology is adopted for transmission, so that the distance, the energy consumption and the reliability of the transmission efficiency of the traditional equipment are improved.
The invention enables accurate measurement of blood oxygen and steady-state monitoring to be more convenient and flexible, and enables the system to better serve the development trends of future clinical monitoring, family health and endowment informatization.
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FIG. 1 is a block diagram of a finger-clip type blood oxygen saturation measuring device based on ZigBee technology according to the present invention;
fig. 2 is a flowchart of a finger-clipped oxyhemoglobin saturation measurement method based on the ZigBee technology.
Detailed Description
Referring to fig. 1, the finger-clipped oxyhemoglobin saturation measuring device based on the ZigBee technology provided by the present invention includes: the device comprises a pulse wave signal acquisition unit, a display unit, a chip control unit and a battery management unit.
The pulse wave signal acquisition unit is used for acquiring a blood oxygen saturation detection value. In this embodiment, the pulse wave signal acquisition unit senses the finger and acquires the optical signal, and processes the optical signal to generate the blood oxygen parameter. Specifically, in this embodiment, the pulse wave signal acquisition unit adopts an optical measurement method of non-invasive blood oxygen measurement, specifically adopts a photoplethysmographic (PPG) signal in which red light and infrared light transmit after passing through human tissue, and then calculates the value of blood oxygen saturation according to a formula derived from Lambert-Beer law.
Specifically, in this embodiment, the pulse wave signal acquisition unit includes an identification module, a calculation module, and a denoising module. The identification module is used for identifying the photoplethysmographic signals transmitted by the red light and the infrared light after passing through the human finger. The calculation module is used for obtaining the correlation between R and the blood oxygen saturation according to the blood oxygen saturation definition and the Lambert-beer law and obtaining the blood oxygen saturation through the blood oxygen saturation SPO2And obtaining the blood oxygen saturation degree by a light absorption ratio R calibration curve. Specifically, in the present embodiment, the blood oxygen saturation level SPO2And the calibration curve of the light absorption ratio R is as follows:
SPO2＝-20.85R2+0.149R+104.6。
in the present embodiment, when calculating the light absorption rate, first, a calculation formula of the light absorption rate is determined:
Figure BDA0002351166780000051
then, the light absorption rate is normalized according to the following formula, and the final light absorption rate is obtained as follows:
Figure BDA0002351166780000052
wherein maxR is the R 'value corresponding to the red light signal when taking the peak value mean value, minR is the R' value corresponding to the red light signal when taking the trough value mean value, maxR is the R 'value corresponding to the infrared light signal when taking the peak value mean value, and minIR is the R' value corresponding to the infrared light signal when taking the trough value mean value.
The denoising module is used for removing ambient light interference signals and motion interference signals which occur in the acquisition process of the photoplethysmographic (PPG) signals. Specifically, in the embodiment, an ambient light denoising function in the blood oxygen simulation front end is adopted, and after a PPG signal of red light or infrared light is acquired once, a PPG signal acquired by a probe without a light emitting photodiode, that is, an ambient light interference signal, is acquired once, and the ambient light interference signal is subtracted from the collected PPG signal to obtain the PPG signal without ambient light interference. In this embodiment, a Wden function in MATLAB is used to realize wavelet automatic noise removal of the signal threshold, so as to realize removal of the motion interference signal.
The chip control unit is respectively connected with the display unit and the pulse wave signal acquisition unit; the display unit is used for displaying the blood oxygen saturation detection value acquired by the pulse wave signal acquisition unit under the control of the chip control unit and inputting an editing instruction to the chip control unit. Therefore, in the embodiment, the pulse wave signal acquisition unit can obtain the real-time display of the blood oxygen saturation detection value through the display module, and meanwhile, the man-machine interaction of the measuring device is realized through the input of the display unit to the chip control unit, so that the measuring device is more flexible in work. Specifically, in the embodiment, the display module adopts an OLED touch display screen which is self-luminous, low in energy consumption, ultra-thin and light-weight.
In this embodiment, the chip control unit includes: the device comprises a chip module, an initialization module, a channel selection module and a communication module. The chip module is respectively connected with the denoising module, the display unit, the initialization module, the channel selection module and the communication module. The initialization module is used for initializing and calling communication parameters set in the chip module, the channel selection module is used for selecting a communication channel under the current communication condition according to a preset channel selection mode, and the communication module is used for performing data transmission through the communication channel selected by the channel selection module. The communication module is connected with the denoising module, and the blood oxygen saturation detection value obtained by the pulse wave signal acquisition unit is directionally transmitted through the denoising arc of the denoising module and the communication module. And the chip module acquires and processes the data denoised by the denoising module and then transmits the data through the communication module.
Specifically, in this embodiment, the chip control unit implements ZigBee transmission by parameter initialization of the initialization module and selection of the channel selection module, that is, the communication module transmits the acquired data through ZigBee.
In this embodiment, a CC2530 chip is used as a chip module. To meet the requirements of short distance, low power consumption, high reliability and high integration level
The battery management unit is respectively connected with the pulse wave signal acquisition unit, the display unit and the chip control unit and used for supplying power. Specifically, the battery management unit comprises a battery module and a charging module, wherein the battery module adopts a lithium battery, and the charging module adopts a USB3.0 interface.
Referring to fig. 2, the invention also provides a finger-clipped oxyhemoglobin saturation measuring method based on the ZigBee technology, which includes collecting photoplethysmographic (PPG) signals transmitted by red light and infrared light after passing through human tissues, and calculating a value of oxyhemoglobin saturation according to Lambert-Beer law.
The finger-clip type oxyhemoglobin saturation measuring method of the ZigBee technology in the embodiment specifically includes the following steps:
s1, according to transmissionThe absorption amounts of red light and infrared light respectively obtained by the change of arterial blood flow are respectively recorded as AC660nmAnd AC940nm. And acquiring the red and infrared light absorption amounts of tissues at the transmission part except the artery blood flow, and recording the red and infrared light absorption amounts as DC660nmAnd DC940nm。
S2, calculating the light absorption ratio R according to the obtained multiple light absorption quantities, and according to the preset blood oxygen saturation SPO2And obtaining the blood oxygen saturation degree by a light absorption ratio R calibration curve.
Specifically, in the present embodiment, the light absorption ratio R is calculated by:
firstly, determining a calculation formula of the light absorption rate:
Figure BDA0002351166780000071
then, the light absorption rate is normalized according to the following formula, and the final light absorption rate is obtained as follows:
Figure BDA0002351166780000072
wherein maxR is the R 'value corresponding to the red light signal when taking the peak value mean value, minR is the R' value corresponding to the red light signal when taking the trough value mean value, maxR is the R 'value corresponding to the infrared light signal when taking the peak value mean value, and minIR is the R' value corresponding to the infrared light signal when taking the trough value mean value.
In the present embodiment, the blood oxygen saturation level SPO2And the calibration curve of the light absorption ratio R is as follows:
SPO2＝-20.85R2+0.149R+104.6。
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims (10)

1. The utility model provides a indicate double-layered oxyhemoglobin saturation measuring device based on zigBee technique which characterized in that includes: the device comprises a pulse wave signal acquisition unit, a display unit, a chip control unit and a battery management unit;
the pulse wave signal acquisition unit is used for acquiring a blood oxygen saturation detection value;
the chip control unit is respectively connected with the display unit and the pulse wave signal acquisition unit; the display unit is used for displaying the blood oxygen saturation detection value acquired by the pulse wave signal acquisition unit under the control of the chip control unit and inputting an editing instruction to the chip control unit;
the battery management unit is respectively connected with the pulse wave signal acquisition unit, the display unit and the chip control unit and used for supplying power.
2. The finger-clip type blood oxygen saturation measurement device based on the ZigBee technology as claimed in claim 1, wherein the pulse wave signal acquisition unit comprises an identification module, a calculation module and a de-noising module;
the identification module is used for identifying a photoplethysmographic signal transmitted by red light and infrared light after passing through a human finger; the calculation module is used for obtaining the correlation between R and the blood oxygen saturation according to the blood oxygen saturation definition and the Lambert-beer law and obtaining the blood oxygen saturation through the blood oxygen saturation SPO2Obtaining the blood oxygen saturation degree by comparing the light absorption ratio R with a calibration curve; the denoising module is used for removing ambient light interference signals and motion interference signals which occur in the collection process of the photoelectric volume pulse wave signals.
3. The finger-clip type oximetry device based on ZigBee technology of claim 2, wherein the chip control unit comprises: the device comprises a chip module, an initialization module, a channel selection module and a communication module; the chip module is respectively connected with the denoising module, the display unit, the initialization module, the channel selection module and the communication module; the initialization module is used for initializing and calling communication parameters set in the chip module, the channel selection module is used for selecting a communication channel under the current communication condition according to a preset channel selection mode, and the communication module is used for performing data transmission through the communication channel selected by the channel selection module; and the chip module acquires and processes the data denoised by the denoising module and then transmits the data through the communication module.
4. The finger-clip type blood oxygen saturation measurement device based on ZigBee technology as claimed in claim 3, wherein the chip module adopts CC2530 chip.
5. The finger-clipped oxyhemoglobin saturation measurement device based on ZigBee technology as claimed in claim 1, wherein the battery management unit comprises a battery module and a charging module, the battery module adopts a lithium battery, and the charging module adopts a USB3.0 interface.
6. The finger-clipped oxyhemoglobin saturation measurement device based on ZigBee technology as claimed in claim 1, wherein the display module adopts an OLED touch display screen.
7. A finger-clipped oxyhemoglobin saturation measuring method based on a ZigBee technology is characterized in that photoplethysmographic signals transmitted after red light and infrared light pass through human tissues are collected, and then the value of oxyhemoglobin saturation is calculated according to the Lambert-beer law.
8. The method for measuring oxygen saturation level of blood by finger clip of ZigBee technology as claimed in claim 7, comprising the following steps:
s1, obtaining the absorption quantity of red and infrared light respectively according to the change of artery blood flow by the transmission method, and respectively recording the absorption quantity as AC660nmAnd AC940nm(ii) a And acquiring the red and infrared light absorption amounts of tissues at the transmission part except the artery blood flow, and recording the red and infrared light absorption amounts as DC660nmAnd DC940nm；
S2, calculating the light absorption ratio R according to the obtained multiple light absorption quantities, and according to the preset blood oxygen saturation SPO2And obtaining the blood oxygen saturation degree by a light absorption ratio R calibration curve.
9. The method for measuring oxygen saturation level of blood by finger clip of ZigBee technique as claimed in claim 8, wherein in step S2, the light absorption ratio R is calculated by:
firstly, determining a calculation formula of the light absorption rate:
Figure FDA0002351166770000021
then, the light absorption rate is normalized according to the following formula, and the final light absorption rate is obtained as follows:
Figure FDA0002351166770000022
wherein maxR is the R 'value corresponding to the red light signal when taking the peak value mean value, minR is the R' value corresponding to the red light signal when taking the trough value mean value, maxR is the R 'value corresponding to the infrared light signal when taking the peak value mean value, and minIR is the R' value corresponding to the infrared light signal when taking the trough value mean value.
10. The ZigBee-based fingerclip-on oximetry method of claim 9, wherein the oximetry SPO2And the calibration curve of the light absorption ratio R is as follows:
SPO2＝-20.85R2+0.149R+104.6。
CN201911415822.5A 2019-12-31 2019-12-31 Finger-clip type oxyhemoglobin saturation measuring device and method based on ZigBee technology Pending CN111035397A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1985764A (en) * 2005-12-23 2007-06-27 深圳迈瑞生物医疗电子股份有限公司 Blood oxygen measuring method and device capable of eliminating moving inteference
CN203000912U (en) * 2012-10-12 2013-06-19 浙江大学城市学院 Wearable multi-physiological-signal collection and locating device
CN104644181A (en) * 2013-11-21 2015-05-27 哈尔滨功成科技创业投资有限公司 Wireless blood oxygen saturation degree detection system based on ZigBee technology
CN104739424A (en) * 2015-03-17 2015-07-01 中国人民解放军第二军医大学 Wireless and wearable type blood oxygen monitoring system
CN105726041A (en) * 2014-12-12 2016-07-06 哈尔滨米米米业科技有限公司 CC2430-based wireless blood oxygen saturation degree detection system
CN106344042A (en) * 2016-10-27 2017-01-25 北京雷致科技有限公司 Fingerstall type blood oxygen measuring device and blood oxygen monitoring system
CN106510659A (en) * 2016-10-27 2017-03-22 北京雷致科技有限公司 Blood oxygen and heart rate measuring method, measuring device and measuring system
EP3491999A2 (en) * 2017-07-20 2019-06-05 Commissariat à l'énergie atomique et aux énergies alternatives Device for estimating spo2 and method of estimating spo2
US10362999B1 (en) * 2015-10-24 2019-07-30 Maxim Integrated Products, Inc. Gated physiologial monitoring system and method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1985764A (en) * 2005-12-23 2007-06-27 深圳迈瑞生物医疗电子股份有限公司 Blood oxygen measuring method and device capable of eliminating moving inteference
CN203000912U (en) * 2012-10-12 2013-06-19 浙江大学城市学院 Wearable multi-physiological-signal collection and locating device
CN104644181A (en) * 2013-11-21 2015-05-27 哈尔滨功成科技创业投资有限公司 Wireless blood oxygen saturation degree detection system based on ZigBee technology
CN105726041A (en) * 2014-12-12 2016-07-06 哈尔滨米米米业科技有限公司 CC2430-based wireless blood oxygen saturation degree detection system
CN104739424A (en) * 2015-03-17 2015-07-01 中国人民解放军第二军医大学 Wireless and wearable type blood oxygen monitoring system
US10362999B1 (en) * 2015-10-24 2019-07-30 Maxim Integrated Products, Inc. Gated physiologial monitoring system and method
CN106344042A (en) * 2016-10-27 2017-01-25 北京雷致科技有限公司 Fingerstall type blood oxygen measuring device and blood oxygen monitoring system
CN106510659A (en) * 2016-10-27 2017-03-22 北京雷致科技有限公司 Blood oxygen and heart rate measuring method, measuring device and measuring system
EP3491999A2 (en) * 2017-07-20 2019-06-05 Commissariat à l'énergie atomique et aux énergies alternatives Device for estimating spo2 and method of estimating spo2

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
秦颖等: ""基于交直流分离的反射式血氧饱和度测量***的设计"", 《传感技术学报》 *
胡平平等: ""无创血氧饱和度的测量原理和计算方法"", 《微处理机》 *
范丛山: ""基于FPGA 的数字式血氧饱和度测量仪设计"", 《电子器件》 *

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