CN112137609A - Multi-physiological index acquisition device - Google Patents
Multi-physiological index acquisition device Download PDFInfo
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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
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0008—Temperature signals
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- 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
- A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—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
- A61B5/02055—Simultaneously evaluating both cardiovascular condition and temperature
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
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Abstract
The invention provides a multi-physiological index acquisition device, which comprises: the sensor comprises a main shell, a fixing piece, a sensor window, a sensor assembly, a data acquisition module, a processor module, a wireless transmission module and a power supply assembly. Many physiological index collection system detects based on single finger, wears the convenience, portable. By detecting a single finger, particularly enabling the positions of the first and second bioelectricity collecting electrodes to respectively correspond to a proximal joint bone and a distal joint of the single finger, the accuracy of the collected physiological index data is higher, and the representation level is better. Meanwhile, the signal amplification circuit is additionally arranged in the circuit structure, so that the detected physiological index data signal is clearer.
Description
Technical Field
The invention relates to the technical field of ergonomic human factor engineering physiological signal detection, in particular to a multi-physiological-index acquisition device.
Background
In the prior art, a plurality of physiological indexes mostly adopt special medical detection instruments, but the special equipment is large in size, inconvenient to move and carry, only can be used in medical care places, and cannot adapt to other application scenes. For the acquisition of physiological indexes in a mobile application scene, the representation levels of the physiological index data generated by different body parts are different, and the detection precision is challenged. For example, the skin electricity data is used for reflecting the emotion change level, and when different parts of a human body are detected, the detection values of the skin electricity data are greatly different along with the emotion change level. Therefore, in order to realize detection under various scenes and obtain accurate physiological indexes, improvement on detection equipment is needed.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a multi-physiological-index acquisition device, which uses a fingertip of a single finger as a measurement point, and optimizes a circuit structure, so as to solve the problems that the existing physiological-index acquisition device is inconvenient to wear and detect based on multiple fingers, and has low detection precision.
The technical scheme of the invention is as follows:
the invention provides a multi-physiological index acquisition device, which comprises:
the detection end face of the main shell is provided with a groove for matching with a finger;
the fixing pieces are arranged on two sides of the main shell and used for fixing fingers;
the sensor window is arranged in the groove;
the sensor component is arranged in the sensor window and comprises a first bioelectricity collecting electrode, a second bioelectricity collecting electrode, an infrared light emitter, a red light emitter, a photoelectric sensor and a skin temperature sensor, wherein the photoelectric sensor is used for receiving light beams reflected by the infrared light emitter and the red light emitter through the skin to detect the heart rate and the blood oxygen saturation; the position of the first bioelectricity collecting electrode corresponds to a proximal knuckle of a finger, and the position of the second bioelectricity collecting electrode corresponds to a distal knuckle of the finger;
the data acquisition module is arranged in the main shell and used for acquiring data information generated by the first and second bioelectricity acquisition electrodes, the photoelectric sensor and the skin temperature sensor;
the processor module is used for analyzing and processing the data information obtained by the data acquisition module;
the wireless transmission module is connected with the processor module and used for data transmission;
and the power supply assembly is arranged inside the main shell and used for supplying power.
In some embodiments, the fastener includes a strap disposed on the first side of the main housing, and a clasp disposed on the second side of the main housing; and the binding band is provided with a button hole for fixedly connecting the buckle.
In some embodiments, the infrared light emitter and the red light emitter are respectively disposed on two sides of the photoelectric sensor, the infrared light emitter, the red light emitter and the photoelectric sensor are located at positions corresponding to middle knuckle, and the skin temperature sensor is disposed on a side of the first skin electricity collecting electrode close to the palm.
In some embodiments, the infrared light emitter is a 850nm wavelength LED lamp and the red light emitter is a 660nm wavelength LED lamp.
In some embodiments, the data acquisition module comprises a picoelectricity acquisition module, a pulse acquisition module and a picotemperature acquisition module, the picoelectricity acquisition module is connected with the first and second picoelectricity acquisition electrodes through a first signal amplification circuit, and the pulse acquisition module is connected with the photoelectric sensor through the first signal amplification circuit; the skin temperature acquisition module is connected with the skin temperature sensor through a second signal amplification circuit.
In some embodiments, a blood oxygen calculating module is further disposed in the main housing, and the blood oxygen calculating module is connected to the pulse collecting module and the processor module to convert blood oxygen parameters according to the data information acquired by the pulse collecting module.
In some embodiments, an acceleration sensor and an acceleration acquisition module are further arranged in the main shell, and the acceleration acquisition module is respectively connected with the acceleration sensor and the processor module.
In some embodiments, the main housing is further provided with a data interface, and the data interface is connected with the processor module and the power supply assembly and used for data processing acquisition, transmission and power supply.
In some embodiments, a direct current battery is further arranged in the main shell, and the direct current battery is connected with the power supply assembly for supplying power; the main shell is further provided with a power key, and the power key is connected with the power supply assembly.
In some embodiments, the wireless transmission module is a bluetooth module, a WiFi communication module, or a zigbee communication module.
The multi-physiological-index acquisition device has the beneficial effects that the multi-physiological-index acquisition device is used for detecting based on a single finger, and is convenient to wear and carry. By detecting a single finger, particularly enabling the positions of the first and second bioelectricity collecting electrodes to respectively correspond to a proximal joint bone and a distal joint of the single finger, the accuracy of the collected physiological index data is higher, and the representation level is better. Meanwhile, the signal amplification circuit is additionally arranged in the circuit structure, so that the detected physiological index data signal is clearer.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. For purposes of illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary apparatus actually manufactured according to the present invention. In the drawings:
fig. 1 is a schematic structural diagram of a multi-physiological-index collecting device according to an embodiment of the present invention;
FIG. 2 is a perspective view of FIG. 1;
fig. 3 is a schematic structural diagram of a part of sensors in the multi-physiological-index collecting device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a connection structure of the multi-physiological-index collecting device according to an embodiment of the present invention;
fig. 5 is a schematic view of a connection structure of the multi-physiological-index collecting device according to another embodiment of the present invention.
Description of the labeling:
101: a main housing; 1011: binding bands; 1012: a buttonhole;
1013: buckling; 102: a groove; 103: a sensor window;
104: a sensor assembly; 1041: a first electrodermal acquisition electrode; 1042: a second electrodermal acquisition electrode;
1043: an infrared light emitter; 1044: a red light emitter; 1045: a photosensor;
1046: a skin temperature sensor; 1047: an acceleration sensor; 201: a data acquisition module;
2011: a galvanic collection module; 2012: a pulse acquisition module; 2013: a skin temperature acquisition module;
202: a processor module; 203: a wireless transmission module; 204: a power supply component;
2041: a power key; 301: a first signal amplifying circuit; 302: and a second signal amplifying circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It is also noted herein that the term "coupled," if not specifically stated, may refer herein to not only a direct connection, but also an indirect connection in which an intermediate is present.
It should be noted that, in the present application, the proximal knuckle is a knuckle close to one end of the palm, and the distal knuckle is a knuckle far from one end of the palm. The subject is a user who wears the multi-physiological-index acquisition device and performs physiological characteristic data detection and acquisition.
In the process of in vitro detection of physiological index data, due to the difference of structures and functions of different positions of a human body, detection values obtained at different parts have obvious difference. Therefore, in order to obtain more accurate physiological index data, detection is required at a position where the physiological index data is sensitive to change. For example, the galvanic data is resistance or conductance data of the skin, which varies with changes in the function of the sweat glands in the skin, and can be used to reflect emotional changes in the subject, increased sweat gland secretion in the case of emotional stress, fear, or anxiety, and increased sweat on the surface of the skin, resulting in increased electrical conductivity. And the sweat gland secretion quantity of different parts of the human body has obvious difference, so that the representation levels of the skin electricity data collected by different parts are inconsistent, for example, under the same condition, the skin electricity change level of the wrist is obviously lower than that of the palm, and the skin electricity change of the palm is obviously lower than that of the fingertip.
In the prior art, the special medical equipment generally carries out physiological index data detection through a plurality of fingers, and is complex in wearing and complex in detection flow. While wearable intelligent detection equipment generally detects the wrist or earlobe part, the detection is still not sharp enough.
The invention provides a multi-physiological index acquisition device, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, comprising: main casing 101, mounting, sensor window 103, sensor assembly 104, data acquisition module 201, processor module 202, wireless transmission module 203 and power supply assembly 204.
The detection end face of the main shell 101 is provided with a groove 102 for matching with a finger.
Fixing members (not shown) are provided at both sides of the main housing 101 for fixing fingers.
And a sensor window 103 disposed within the recess 102.
The sensor assembly 104 is arranged in the sensor window 103 and comprises a first bioelectricity collecting electrode 1041, a second bioelectricity collecting electrode 1042, an infrared light emitter 1043, a red light emitter 1044, a photoelectric sensor 1045 and a skin temperature sensor 1046, wherein the photoelectric sensor 1045 is used for receiving light beams reflected by the infrared light emitter 1043 and the red light emitter 1044 through the skin to detect the heart rate and the blood oxygen saturation; the first electrodermal acquisition electrode 1041 is positioned to correspond to the proximal knuckle of the finger and the second electrodermal acquisition electrode 1042 is positioned to correspond to the distal knuckle of the finger.
The data acquisition module 201 is disposed inside the main housing 101 and is configured to acquire data information generated by the first and second electrodess acquisition electrodes 1041, 1042, the photosensor 1045, and the skin temperature sensor 1046.
The processor module 202 is configured to analyze and process the data information obtained by the data acquisition module 201.
And a wireless transmission module 203 connected with the processor module 202 for data transmission.
And a power supply unit 204 disposed inside the main casing 101 for supplying power.
In the embodiment, the present invention is based on single finger detection, and the main housing 101 may have a rectangular structure, and one side for disposing the sensor is a detection end face. Because human finger is cylindrical, in order to agree with the finger shape and be convenient for wear to make the sensor that sets up at the detection terminal surface can laminate the finger and detect, set up recess 102 at the detection terminal surface of main casing body 101, make and wear more stable. The grooves 102 may be of equal width, or may be wider near the proximal knuckle and narrower near the distal knuckle, depending on the finger shape.
The fixing part is used for fixing the main shell 101 on the finger of the subject, and fixing parts with different structures can be arranged according to the requirements of different use scenes. In some embodiments, as shown in fig. 1 and 2, the fixing member includes a strap 1011 disposed on a first side of the main housing 101, and a catch 1013 disposed on a second side of the main housing 101; the strap 1011 is provided with a grommet 1012 for fixedly connecting the buckle 1013. During wearing, the subject places the fingers in the grooves 102, passes the strap 1011 around the fingers, and is secured by the buckle 1013 connected to the grommet 1012 on the strap 1011. In other embodiments, the securing member may also be a cleat member that is attached to the main housing 101 by a spring for gripping the subject's finger.
The sensor window 103 is disposed in the groove 102 for the sensor assembly 104, and specifically, a plurality of sensor windows 103 may be disposed according to the number of sensors in the sensor assembly 104, or only one sensor window 103 may be disposed for mounting the sensor assembly 104. Further, in some embodiments, a cover plate made of transparent material such as glass sheet may be disposed on the sensor window 103 corresponding to the infrared light emitter 1043, the red light emitter 1044 and the photoelectric sensor 1045 for protecting the internal optical devices and the optical sensor. The first and second skin temperature collecting electrodes 1041 and 1042 and the skin temperature sensor 1046 may be provided with a metal cover plate having good electrical and thermal conductivity, such as a copper plate, for protecting the internal sensor, in correspondence to the sensor window 103.
The sensor assembly 104 is used to collect a variety of physiological metric data, and may include a variety of sensors, wherein the first electrodermal collection electrode 1041 and the second electrodermal collection electrode 1042 are used to collect electrodermal data. The current between the first electrodermal collection electrode 1041 and the second electrodermal collection electrode 1042 is detected, and the electrodermal data information is processed to reflect the emotional change of the subject. Because this application detects based on single finger, in order to make the accurate emotion change that reflects of skin electricity data, require that two electrodes can not too near or too far away, lead to the variable of skin electricity data to detect. In this embodiment, the position of the first galvanic skin collection electrode 1041 corresponds to the proximal knuckle of the finger, and the position of the second galvanic skin collection electrode 1042 corresponds to the distal knuckle of the finger, so that accurate detection of galvanic skin data can be effectively ensured. The external light emitter, the red light emitter 1044 and the photoelectric sensor 1045 detect the heart rate by photoplethysmography, and detect the heart rate by irradiating light into the skin and measuring the light scattering due to blood flow, so that when the blood flow dynamics changes, such as the blood pulse rate (heart rate) or the blood volume (cardiac output), the light entering the human body can be predictably scattered, and the heart rate data can be obtained by the change of the scattered light. Similarly, the blood vessel distribution of the fingers is denser than that of other positions of the human body, so that the data obtained by taking the fingers as the detection points is more accurate.
The data acquisition module 201 may be a single chip, a PCB (printed circuit board) or other electronic device capable of operating a program to acquire sensor data.
The processor block may be a Micro Controller Unit (MCU), a single chip, a PCB (printed circuit board) or other devices capable of storing and running programs, and is configured to process data information acquired by the data acquisition module 201, including calculating heart rate, skin current, body temperature, and converted blood oxygen concentration, and may also package data acquired by the data acquisition module 201 for transmission.
The wireless transmission module 203 may adopt a short-range communication module including a bluetooth module or a zigbee communication module, and the like, for connecting to a mobile device such as a mobile phone or a PC, and may also adopt a WiFi communication module for accessing to the internet.
The power supply component 204 can be powered by a lithium battery, and a 4.2V to 3.3V direct current circuit is used for directly connecting alternating current; a direct current battery pack can also be arranged for supplying power.
In some embodiments, the infrared light emitter 1043 and the red light emitter 1044 are respectively disposed on two sides of the photoelectric sensor 1045, the positions of the infrared light emitter 1043, the red light emitter 1044 and the photoelectric sensor 1045 correspond to a middle knuckle, and the skin temperature sensor 1046 is disposed on a side of the first skin temperature collecting electrode 1041 close to the palm.
In some embodiments, infrared light emitter 1043 is a 850nm wavelength LED lamp and red light emitter 1044 is a 660nm wavelength LED lamp.
In the measurement of blood oxygen concentration, HbO is caused by oxyhemoglobin contained in blood2And hemoglobin Hb in a certain ratio, i.e., blood oxygen concentration. Based on the light absorption characteristics of oxyhemoglobin HbO2 and hemoglobin Hb to the wavelength of 600-1000 nm, the Hb absorption coefficient is higher between 600-800 nm, and the HbO2 absorption coefficient is higher between 800-1000 nm. Therefore, the red light (600-800 nm) and the light close to the IR (800-1000 nm) can be used for respectively detecting the PPG signals of HbO2 and Hb, and then the corresponding specific values are calculated through program processing, so that the blood oxygen concentration value is obtained.
In order to ensure the detection level, in this embodiment, through experimental detection, a 805nm wavelength LED lamp is preferably used as the infrared light emitter 1043, and a 660nm wavelength LED lamp is preferably used as the red light emitter 1044, so that the detection effect based on the finger is the best.
In some embodiments, the data acquisition module 201 includes a pico-electricity acquisition module 2011, a pulse acquisition module 2012, and a pico-temperature acquisition module 2013, the pico-electricity acquisition module 2011 is connected to the first pico-electricity acquisition electrode 1041 and the second pico-electricity acquisition electrode 1042 through the first signal amplification circuit 301, and the pulse acquisition module 2012 is connected to the photoelectric sensor 1045 through the first signal amplification circuit 301; the skin temperature acquisition module 2013 is connected with the skin temperature sensor 1046 through the second signal amplification circuit 302.
In this embodiment, in order to improve the detection efficiency of each physiological characteristic data, the data acquisition module 201 is respectively configured to be a pico-cell acquisition module 2011, a pulse acquisition module 2012 and a pico-cell acquisition module 2013 which are specially used for acquiring pico-cell, pulse and pico-cell data, so as to realize synchronous acquisition of multiple data. Further, by providing the first signal amplification circuit 301 or the second signal amplification circuit 302, the amplitude of variation of the detected signal is increased, so that the detection level and accuracy are higher.
In some embodiments, a blood oxygen calculating module is further disposed in the main housing 101, and the blood oxygen calculating module is connected to the pulse acquisition module 2012 and the processor module 202 to convert blood oxygen parameters according to the data information acquired by the pulse acquisition module 2012.
In this embodiment, based on the light sensing data of the photosensor 1045 collected by the pulse data collecting module 201, the blood oxygen calculating module is arranged to detect the blood oxygen concentration in real time. Specifically, the blood oxygen calculating module may be a single chip, a PCB (printed circuit board) or other electronic devices capable of running programs.
In some embodiments, an acceleration sensor 1047 and an acceleration acquisition module are further disposed in the main housing 101, and the acceleration acquisition module is respectively connected to the acceleration sensor 1047 and the processor module 202.
In the present embodiment, acceleration data is also detected by providing an acceleration sensor 1047 to detect the motion state of the subject. The acceleration sensor 1047 may employ a three-axis acceleration sensor 1047. The acceleration acquisition module can adopt a single chip microcomputer, a PCB (printed circuit board) or other electronic equipment capable of operating programs to acquire sensor data.
In some embodiments, the main housing 101 further has a data interface, which connects the processor module 202 and the power supply module 204 for data processing acquisition, transmission and power supply.
In this embodiment, a data interface connected to the processor module 202 is provided to directly derive the physiological characteristic data through a data line, and further, the data interface is connected to the power supply module 204 to realize wired power supply. The data interface can adopt micro USB, TYPE-C or other interface models.
In some embodiments, a dc battery is also provided in the main housing 101, and the dc battery is connected to the power supply assembly 204 for supplying power; the main housing 101 is further provided with a power key 2041, and the power key 2041 is connected to the power supply component 204. In the embodiment, through the arrangement of the direct-current battery and the power key, the movable work is realized, the automatic start and stop are realized, and the use scene and the working range are greatly expanded.
In other embodiments, the present invention consists essentially of main housing 101, strap 1011, and sensor window 103. The main physiological indicators measured include: galvanic data (EDA), skin temperature (SKT), blood oxygen saturation (SpO2), pulse PPG (photoplethysmograph), heart rate bpm (Beat Per Minute), acceleration data (ACC).
As shown in the attached fig. 1 and 5, 101 is a main shell, 102 is a groove for placing fingers, and one finger can be placed in the groove at will; 1011 is a binding band, is made of silica gel and has skin-friendly property; 1012 is a button hole, which is used for fixing the finger with the 1013 lock catch after bypassing the finger; 1041 and 1042 are skin electric test collecting electrodes, 103 is collecting window for collecting pulse PPG and blood oxygen SpO 2; ACC acceleration is collected inside the circuit.
The sensor for acquiring the pulse PPG and the blood oxygen SPO2 is divided into three parts, as shown in fig. 3, 1043 is an infrared light emitter, 1044 is a red light emitter, and 1045 is a photoelectric sensor. The pulse and blood oxygen measurement uses the wavelength combination of 660nm and 805nm, and as a result of multiple experiments, the coefficients of absorbed light of HbO2 and Hb near the wavelength of 660nm are greatly different, the detection sensitivity is high, the coefficients of absorbed light of HbO2 and Hb near the wavelength of 805nm are approximately equal, the gradient of the absorption coefficient along with the change of the wavelength is large, and the detection is sensitive.
As shown in fig. 2, 2041 is a power switch, which controls the switches of the system; the bottom is a TYPE-C USB interface (not shown in the figure), the interface comprises two functions of data transmission and power supply, and the skin electricity can be measured by a single finger or by the standard form of USB interface connection;
as shown in fig. 5, the signals collected by the first and second electrodermal collection electrodes 1041 and 1042 pass through the first signal amplification circuit 301, then enter the belt and your collection module 2011 for filtering the electrodermal data, and after the filtering is completed, enter the processor module 202 for data processing, convert the analog data signals into digital signals, and then send the signals of the electrodermal data through the wireless transmission module 203; after acquiring optical signals, the photoelectric sensor 1045 of the pulse PPG and blood oxygen SPO2 enters the first signal amplifying circuit 301 for analog signal amplification, and after the amplification of the signals is completed, the signals enter the pulse acquisition module 2012 for pulse signal processing, and the pulse signals are analog signals generated by the photoelectric sensor 1045 through the light beam of the red light emitter 1044, and are transmitted to the processor module 202 after being filtered; after converting the analog signal into a digital signal, the processor module 202 transmits the raw data of the PPG to a PC for display through a wireless transmission module 203 (bluetooth module); the processor module 202 calculates the pulse frequency of the subject according to the original data of the pulse PPG, calculates the heart rate frequency according to the peak time interval of the original data, and sends the heart rate frequency to the PC for display through the wireless transmission module 203. In addition, the blood oxygen calculating module 2015 also collects the ratio of the analog signal generated by the photoelectric sensor 1045 through the light beam of the infrared emitter 1043 to the red light intensity collected by the red light emitter 1044, obtains the blood oxygen concentration value of the subject through calculation, processes the blood oxygen concentration value through the processor module 202, and transmits the blood oxygen concentration value to the PC through the wireless transmission module 203 (bluetooth module) for display;
the skin temperature sensor 1046 is used for collecting skin temperature, the skin temperature is measured in a heat conduction mode in the temperature collection, a window corresponding to the skin temperature sensor 1046 is covered with a heat conduction material made of copper skin, the skin temperature of a finger can be rapidly led into the temperature probe, the skin temperature sensor 1046 outputs an analog signal, the analog signal passes through the second signal amplifying circuit 302 and then is transmitted into the skin temperature collecting module 2013, the skin temperature collecting module 2013 is used for filtering the signal, the obtained resistance value corresponds to the corresponding temperature value and is transmitted to the processor module 202, and the processor module 202 transmits the obtained temperature value to a PC (personal computer) for display after data package; the acceleration sensor 1047 outputs acceleration data of three axes of XYZ, the acceleration sensor 1047 transmits the acquired acceleration data to the acceleration acquisition module 2014, the acceleration acquisition module 2014 transmits the data to the processor module 202 after filtering, the processor module 202 transmits the data to the PC for display through the wireless transmission module 203 (bluetooth module) after data packaging, and the acceleration data can analyze what the finger posture of the subject is in the current state and calculate the angle information of the finger of the subject.
The application optimizes the measurement position and the circuit of the skin electricity. The traditional skin electricity measurement is to carry out data acquisition through the fingertip position of arbitrary two fingers, because two fingers interval is far away, and equipment is worn inconveniently. This application will gather two electrodes of skin electricity and concentrate on a finger, measure through the proximal knuckle and the distal knuckle of finger, compare traditional skin electricity measuring method, measuring method is more convenient, and the test effect is the same with traditional skin electricity measured data trend. When a person is subjected to emotional fluctuation again, the most obvious part is the finger tip, the main characteristic is sweating, and the skin resistance is reduced due to the sweat discharge, so that the skin electricity level is increased. Because the sensitive position that people perspire is in the fingertip, and the next knuckle position is difficult to perspire, the range of the response numerical value of the skin electricity of surveying like this is on the low side, and this application sets up the change that tracks the skin electricity response through increasing the signal amplifier that sets up 10 times, makes the reaction trend more obvious.
Furthermore, the invention also detects whether the finger is on-line, and when the testee detects the finger is on-line, the invention can detect whether the finger is on-line, namely whether the finger is worn effectively. Can carry out the detection of 3 dimensions, the detection of skin electricity, pulse detection and skin temperature detection. Assume that the detected value of the skin electricity is E1; the detection value of the pulse is P1; the skin temperature detection value is T1; starting the test, if the detected value E1 of the skin electricity is equal to 0, the finger is not put well, the measurement of other indexes is stopped, and the finger is put well; if the pulse detection value P1 is more than 200 or P1 is less than 40, the finger is not put well, the measurement of other indexes is stopped, and the finger is put well; if the skin temperature detection value T1 is less than 30, the finger is not put well, the measurement of other indexes is stopped, and the finger is put well; if the finger is not placed well for more than 1 minute, the system is dormant.
To sum up, many physiological index collection system detects based on single finger, wears the convenience, portable. By detecting a single finger, particularly enabling the positions of the first and second bioelectricity collecting electrodes to respectively correspond to a proximal joint bone and a distal joint of the single finger, the accuracy of the collected physiological index data is higher, and the representation level is better. Meanwhile, the signal amplification circuit is additionally arranged in the circuit structure, so that the detected physiological index data signal is clearer.
These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.
A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
Claims (10)
1. A multi-physiological-index acquisition device is characterized by comprising:
the detection end face of the main shell is provided with a groove for matching with a finger;
the fixing pieces are arranged on two sides of the main shell and used for fixing fingers;
the sensor window is arranged in the groove;
the sensor component is arranged in the sensor window and comprises a first bioelectricity collecting electrode, a second bioelectricity collecting electrode, an infrared light emitter, a red light emitter, a photoelectric sensor and a skin temperature sensor, wherein the photoelectric sensor is used for receiving light beams reflected by the infrared light emitter and the red light emitter through the skin to detect the heart rate and the blood oxygen saturation; the position of the first bioelectricity collecting electrode corresponds to a proximal knuckle of a finger, and the position of the second bioelectricity collecting electrode corresponds to a distal knuckle of the finger;
the data acquisition module is arranged in the main shell and used for acquiring data information generated by the first and second bioelectricity acquisition electrodes, the photoelectric sensor and the skin temperature sensor;
the processor module is used for analyzing and processing the data information obtained by the data acquisition module;
the wireless transmission module is connected with the processor module and used for data transmission;
and the power supply assembly is arranged inside the main shell and used for supplying power.
2. The multi-physiological-index acquisition device according to claim 1, wherein the fixing member comprises a strap disposed on a first side of the main housing, and a buckle disposed on a second side of the main housing; and the binding band is provided with a button hole for fixedly connecting the buckle.
3. The multi-physiological-index acquisition device according to claim 1, wherein the infrared light emitter and the red light emitter are respectively arranged at two sides of the photoelectric sensor, the infrared light emitter, the red light emitter and the photoelectric sensor are positioned corresponding to the middle knuckle, and the skin temperature sensor is arranged at one side of the first skin electricity acquisition electrode close to the palm.
4. The multi-physiological-index collection device according to claim 3, wherein the infrared light emitter is an 850nm wavelength LED lamp and the red light emitter is a 660nm wavelength LED lamp.
5. The multi-physiological-index collecting device according to claim 4, wherein the data collecting module comprises a pico-electricity collecting module, a pulse collecting module and a pico-temperature collecting module, the pico-electricity collecting module is connected with the first pico-electricity collecting electrode and the second pico-electricity collecting electrode through a first signal amplifying circuit, and the pulse collecting module is connected with the photoelectric sensor through the first signal amplifying circuit; the skin temperature acquisition module is connected with the skin temperature sensor through a second signal amplification circuit.
6. The multi-physiological-index acquisition device according to claim 5, wherein a blood oxygen calculation module is further disposed in the main housing, and the blood oxygen calculation module is connected to the pulse acquisition module and the processor module to convert blood oxygen parameters according to the data information acquired by the pulse acquisition module.
7. The multi-physiological-index acquisition device according to claim 6, wherein an acceleration sensor and an acceleration acquisition module are further arranged in the main shell, and the acceleration acquisition module is respectively connected with the acceleration sensor and the processor module.
8. The multi-physiological-index collection device according to claim 7, wherein the main housing is further provided with a data interface, and the data interface is connected with the processor module and the power supply assembly and used for data processing collection, transmission and power supply.
9. The multi-physiological-index collection device according to claim 8, wherein a dc battery is further disposed in the main housing, and the dc battery is connected to the power supply assembly for supplying power; the main shell is further provided with a power key, and the power key is connected with the power supply assembly.
10. The multi-physiological-index collection device of claim 9, wherein the wireless transmission module is a bluetooth module, a WiFi communication module, or a zigbee communication module.
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