CN112902993B - Heart rate module test platform and heart rate test circuit - Google Patents
Heart rate module test platform and heart rate test circuit Download PDFInfo
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- CN112902993B CN112902993B CN202110066905.9A CN202110066905A CN112902993B CN 112902993 B CN112902993 B CN 112902993B CN 202110066905 A CN202110066905 A CN 202110066905A CN 112902993 B CN112902993 B CN 112902993B
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- 238000012360 testing method Methods 0.000 title claims abstract description 157
- 238000006073 displacement reaction Methods 0.000 claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000005693 optoelectronics Effects 0.000 claims 2
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/28—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
- G01D5/30—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a heart rate module testing platform and a heart rate testing circuit. One of the first test circuit board and the second test circuit board is used for detachably mounting the photoelectric receiving module, and the other is used for detachably mounting the photoelectric transmitting module. The angle adjusting piece is installed on the installation table and supports the first test circuit board. The displacement adjusting piece is arranged on the mounting table and used for supporting the second test circuit board to be arranged, and the displacement adjusting piece is used for adjusting the lifting height and horizontal displacement of the second test circuit board. The technical problem that the optimal optical distance between the LED and the PD can not be determined rapidly is solved by the aid of the scheme.
Description
Technical Field
The invention relates to the technical field of heart rate testing, in particular to a heart rate module testing platform and a heart rate testing circuit.
Background
Along with the continuous enhancement of people's health consciousness, more and more intelligent wearable devices begin to integrate PPG (real-time heart rate value) heart rate modules. The heart rate module is generally composed of a Photo-Diode (PD) and an light-emitting Diode (LED), wherein light emitted by the LED is reflected to the PD by a capillary vessel part in human skin to generate Photo-generated current, and the heart rate and blood oxygen of a user can be measured according to the periodic variation of the Photo-generated current when blood flows. The optical distance between the LED and the PD directly affects the intensity of the PPG signal, and thus affects the measurement accuracy of heart rate and blood oxygen. Therefore, grasping the optimal optical distance of the LED and PD is critical to the packaging of the heart rate module. However, the optical distance will vary according to the packaging scheme, and the optimal optical distance corresponding to different body parts is different, so that it is often necessary in the industry to design multiple modules with different optical distances for testing, which results in a large development period and cost.
Disclosure of Invention
The invention mainly aims to provide a heart rate module testing platform which aims to quickly determine the optimal optical distance between an LED and a PD.
In order to achieve the above objective, the present invention provides a heart rate module testing platform, wherein the heart rate module comprises a photoelectric receiving module and a photoelectric transmitting module, and the heart rate module testing platform comprises:
a mounting table;
the test circuit board comprises a first test circuit board and a second test circuit board; one of the first test circuit board and the second test circuit board is used for detachably mounting the photoelectric receiving module, and the other one is used for detachably mounting the photoelectric transmitting module;
the angle adjusting piece is arranged on the mounting table and used for supporting the first test circuit board to be arranged, and the angle adjusting piece is used for adjusting the inclination angle of the first test circuit board; and
the displacement adjusting piece is arranged on the mounting table and supports the second test circuit board, and the displacement adjusting piece is used for adjusting the lifting height and horizontal displacement of the second test circuit board.
Optionally, the direction of the mounting platform facing the first test circuit board is a first direction;
the displacement adjusting piece is used for adjusting the lifting height of the second test circuit board in the first direction and enabling the lifting height to be equal to the height of the first test circuit board in the first direction.
Optionally, the angle adjusting member includes:
the height block is arranged on the mounting table;
and the inclined table is arranged between the first test circuit board and the height block and is fixedly connected with the height block.
Optionally, the tilting table includes a first support column, a second support column, a first adjusting screw, a second adjusting screw, a first mounting plate and a second mounting plate, wherein a first end of the first support column is fixedly connected with the height block, and a second end of the first support column is fixedly connected with the first mounting plate; the second support column is rotationally connected with the second mounting plate; the first adjusting screw penetrates through the first mounting plate and is in butt joint with the second mounting plate, and the second adjusting screw penetrates through the first mounting plate and is in butt joint with the second mounting plate; the first adjusting screw and the second adjusting screw are respectively arranged at two ends of the second supporting column and can rotate up and down to change the height and the inclination angle of the second supporting plate in the first direction.
Optionally, the displacement adjusting member includes a triaxial displacement platform and a moving block, and the moving block is disposed on the triaxial displacement platform.
Optionally, the triaxial displacement platform comprises:
the second direction adjusting piece is arranged on the mounting table through a second rotating piece;
the second direction adjusting knob is rotationally connected with the second rotating piece and drives the second direction adjusting piece to move in a second direction when the adjusting knob rotates;
the third direction adjusting piece is arranged on the mounting table through a third rotating piece;
the third-direction adjusting knob is rotationally connected with the third rotating piece and drives the third-direction adjusting piece to move in a third direction when the adjusting knob rotates;
the first direction adjusting piece is arranged on the mounting table through a first rotating piece, and the moving block is arranged on the first direction adjusting piece;
and the first direction adjusting knob is rotationally connected with the first rotating piece and drives the first direction adjusting piece to move in a first direction when the adjusting knob rotates.
Optionally, the first direction, the second direction and the third direction are perpendicular to each other.
Optionally, the mounting stage is a multi-aperture optical backplane.
In order to achieve the above purpose, the invention also provides a heart rate test circuit, which is realized based on the heart rate module test platform, and comprises a photoelectric receiving module arranged on one of the first test circuit board and the second test circuit board and a photoelectric transmitting module arranged in the other.
Optionally, when the photoelectric receiving module is mounted on the first test circuit board and the photoelectric transmitting module is mounted in the second test circuit board, the heart rate test circuit further comprises a control module;
the control module is respectively connected to a photodiode of the photoelectric receiving module and an LED of the photoelectric transmitting module through a rectification feedback control unit of the photoelectric receiving module;
the control unit is used for lighting the LEDs and collecting the electric signals of the photodiodes so as to obtain the distances between the corresponding first test circuit board and the corresponding second test circuit board when the amplitude of the electric signals is maximum.
The heart rate module test platform comprises an installation table, a test circuit board, an angle adjusting piece and a displacement adjusting piece, wherein the test circuit board comprises a first test circuit board and a second test circuit board; one of the first test circuit board and the second test circuit board is used for detachably mounting the photoelectric receiving module, and the other one is used for detachably mounting the photoelectric transmitting module. The angle adjusting piece is installed on the installation table and supports the first test circuit board, and the displacement adjusting piece is installed on the installation table and supports the second test circuit board. The heart rate module comprises a photoelectric receiving module and a photoelectric transmitting module. In the above embodiment, the angle adjusting member is used for adjusting the inclination angle of the first test circuit board, and the displacement adjusting member is used for adjusting the lifting height and the horizontal displacement of the second test circuit board. The height following can be realized through the displacement adjusting piece to guarantee that the first test circuit board and the second test circuit board are on the same horizontal plane, based on the fact, the angle of the first test circuit board and the displacement of the second test circuit board are debugged, data of a plurality of photoelectric receiving modules are collected, at the moment, the data collected by the photoelectric receiving modules are correspondingly recorded, the height and the inclination angle position are correspondingly recorded, and therefore the position with the strongest signal of the photoelectric receiving module (namely the maximum amplitude of the optical feedback signal at the moment) is selected, the inclination angle of the first test circuit board and the optical distance between the first test circuit board and the second test circuit board are correspondingly used as the optimal solution, and when the performance is best, the optimal optical distance between the LED and the PD can be rapidly determined, so that the technical problem that the optimal optical distance between the LED and the PD cannot be rapidly determined is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic top view of an embodiment of a heart rate module testing platform according to the present invention;
FIG. 2 is a schematic side view of an embodiment of a heart rate module testing platform according to the present invention;
FIG. 3 is a schematic circuit diagram of an embodiment of a heart rate testing circuit according to the present invention;
fig. 4 is a schematic diagram of waveforms of a test signal of an embodiment of a heart rate module test platform according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
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 if descriptions of "first", "second", etc. are provided in the embodiments of the present invention, the descriptions of "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying that the number of indicated technical features is indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
The invention provides a rate module test platform, which aims to solve the technical problem that the optimal optical distance between an LED and a PD cannot be determined quickly.
The heart rate module testing platform is used for testing a heart rate module, as shown in fig. 2, and the heart rate module 50 comprises a photoelectric receiving module 501 and a photoelectric transmitting module 502.
In one embodiment, as shown in fig. 1 and 2, the heart rate module 50 test platform includes a mounting table 10, a test circuit board, an angle adjuster 20 and a displacement adjuster 30, wherein the test circuit board includes a first test circuit board 401 and a second test circuit board 402; one of the first test circuit board 401 and the second test circuit board 402 is used for detachably mounting the photo receiver module 501, and the other is used for detachably mounting the photo emitter module 502. The angle adjusting member 20 is mounted on the mounting table 10 and supports the first test circuit board 401, and the displacement adjusting member 30 is mounted on the mounting table 10 and supports the second test circuit board 402.
In the above embodiment, the angle adjuster 20 is used to adjust the inclination angle of the first test circuit board 401, and the displacement adjuster 30 is used to adjust the elevation height and the horizontal displacement of the second test circuit board 402. The height following can be realized through the displacement adjusting member 30, so that the first test circuit board 401 and the second test circuit board are guaranteed to be on the same horizontal plane, based on the fact, the angle of the first test circuit board 401 and the displacement of the second test circuit board 402 are debugged, data of a plurality of photoelectric receiving modules 501 are collected, at the moment, the data collected by the photoelectric receiving modules 501 are correspondingly recorded with the height and the inclination angle, the position with the strongest signal of the photoelectric receiving modules 501 is selected from the position with the strongest signal (namely, the maximum amplitude of the optical feedback signal at the moment), and the inclination angle with the first test circuit board 401 and the optical distance between the first test circuit board 401 and the second test circuit board 402 are correspondingly used as optimal solutions, and therefore, when the best performance is determined, the optimal optical distance between an LED and a PD can be rapidly determined, and the technical problem that the optimal optical distance between the LED and the PD can not be rapidly determined can be solved. By the scheme, cost and design period can be saved, and testing can be performed on the basis of the original packaging module without redesigning and proofing. And the measured data has high reliability, and the measured result is the true optimal optical distance for different packaging schemes. In addition, the adaptability of this scheme is strong, can test different positions of health through angle adjusting piece 20, and need not redesign frock. Optionally, the mounting table 10 is a multi-aperture optical backplane.
Alternatively, the direction of the mounting table 10 toward the first test circuit board 401 is a first direction, and the displacement adjuster 30 is used for adjusting the lifting height of the second test circuit board 402 in the first direction and making the lifting height equal to the height of the first test circuit board 401 in the first direction.
Based on the above embodiment, when the heart rate module 50 is used for testing heart rate at different positions, two components of the heart rate module 50 may need to be at a certain angle to be attached to a user for testing, so the user needs to adjust the angle of the first test circuit board 401 by adjusting the angle adjusting member 20, so that the first test circuit board 401 and the second test circuit board 402 attach to the skin of the user for testing, that is, the photoelectric receiving module 501 and the photoelectric transmitting module 502 are at an angle to simulate the skin state of the user, and then the lifting height of the displacement adjusting member 30 in the first direction is adjusted again, so that the photoelectric receiving module 501 and the photoelectric transmitting module 502 can be ensured to be at the same height, the data to be measured can be reduced, and the accuracy of the measured data can be ensured.
Alternatively, as shown in fig. 2, the angle adjusting member 20 includes a height block 201 and an inclined table, and the height block 201 is provided on the mount table 10. The tilting table is disposed between the first test circuit board 401 and the height block 201, and is fixedly connected with the height block 201.
The height block 201 is used for raising the height of the tilting table, so that the height of the tilting table can be kept consistent with the displacement adjusting member 30, the tilting table is used for adjusting the inclination angle of the first test circuit board 401 on the tilting table according to the skin state of a user to be measured, the tilting table is attached to the skin of the user, and the adjusting angle adjusting member 20 simulates the condition that the photoelectric transmitting assembly and the photoelectric receiving assembly form a certain angle.
Optionally, as shown in fig. 2, the tilting table includes a first support column 2011, a second support column 2013, a first adjusting screw 2015, a second adjusting screw 2014, a first mounting plate 2012 and a second mounting plate 2016, wherein a first end of the first support column 2011 is fixedly connected to the height block 201, and a second end of the first support column 2011 is fixedly connected to the first mounting plate 2012; the second support post 2013 is rotatably coupled to the second mounting plate 2016; a first adjustment screw 2015 passes through the first mounting plate 2012 and abuts the second mounting plate 2016, and a second adjustment screw 2014 passes through the first mounting plate 2012 and abuts the second mounting plate 2016; the first adjusting screw 2015 and the second adjusting screw 2014 are respectively disposed at two ends of the second supporting column 2013.
Wherein, the first adjusting screw 2015 and the second adjusting screw 2014 respectively support two ends of the second support pillar 2013, so that the height and the inclination angle of the second support pillar in the first direction can be changed by rotating one or both of the first adjusting screw 2015 and the second adjusting screw 2014.
Alternatively, as shown in fig. 2, the displacement adjuster 30 includes a triaxial displacement platform and a moving block 311, the moving block 311 is disposed on the triaxial displacement platform, and a second test circuit board 402 is fixedly mounted on the moving block 311.
The triaxial displacement platform is used for precisely controlling the movement of the second test circuit board 402 in three directions, and can conveniently mark the movement distance in each direction, so that each test signal and each movement distance can be conveniently corresponding.
Alternatively, as shown in fig. 2, the triaxial displacement platform includes a second direction adjusting member 306, a second direction adjusting knob 301, a third direction adjusting member 307, a third direction adjusting knob 302, a first direction adjusting member 307, and a first direction adjusting knob 303, the second direction adjusting member 306 is mounted on the mounting table 10 through a second rotating member 304, the second direction adjusting knob 301 is rotationally connected with the second rotating member 304, the third direction adjusting member 307 is mounted on the mounting table 10 through a third rotating member, and the third direction adjusting knob 302 is rotationally connected with the third rotating member. The first direction adjusting member 307 is mounted on the mounting table 10 by a first rotating member, and the moving block 311 is provided on the first direction adjusting member 307. The first direction adjusting knob 303 is rotatably connected to the first rotating member.
Wherein, the second direction adjusting knob 301 drives the second direction adjusting member 306 to move in the second direction when the adjusting knob is turned. The third direction adjusting knob 302 and when the adjusting knob is turned, the third direction adjusting member 307 is driven to move in the third direction. The first direction adjustment knob 303 and when turned, drives the first direction adjustment member 307 to move in a first direction. The motion of the second test circuit board 402 in each direction can be realized through the scheme, and the rotation principle can refer to the vernier caliper measurement and calculation principle.
Optionally, the first direction, the second direction and the third direction are perpendicular to each other.
When the first direction, the second direction and the third direction are perpendicular to each other, the last measured data can be directly input into the test table and the test signal standard without other processing, and the optical distance between the two blocks of the heart rate module 50 can be obtained without other conversion. Thereby simplifying the testing procedure.
To achieve the above objective, as shown in fig. 3, the present invention further provides a heart rate testing circuit, which is implemented based on the heart rate module 50 testing platform, and includes a photoelectric receiving module 501 mounted on one of the first testing circuit board 401 and the second testing circuit board 402, and further includes a photoelectric transmitting module 502 mounted on the other.
It should be noted that, because the heart rate testing circuit of the present invention includes all embodiments of the heart rate module 50 testing platform, the heart rate testing circuit of the present invention has all the advantages of the heart rate module 50 testing platform, and will not be described herein.
Optionally, as shown in fig. 2, when the photoelectric receiving module 501 is mounted on the first test circuit board 401 and the photoelectric transmitting module 502 is mounted in the second test circuit board 402, the heart rate test circuit further includes a control module. The control module is connected to the photodiode of the photoelectric receiving module 501 and the LED of the photoelectric emitting module 502 through the rectifying and feedback unit of the photoelectric receiving module 501.
The control unit lights the LEDs on the first test circuit board 401, collects the test signals of the photodiodes on the second test circuit board 402, places the skin of the part to be tested above the heart rate module 50, adjusts the position of the displacement adjusting member 30 for multiple times, records the photo-generated current waveform collected by the photodiodes, finds the position with the strongest AC (alternating current) signal, and measures the distance between the LEDs of the photoelectric transmitting module 502 and the photodiodes of the photoelectric receiving module 501, which is the optimal optical distance under the packaging scheme. At this time, the position where the AC (alternating current) signal is strongest represents the position where the amplitude of the test signal is largest, the position where the amplitude is largest is determined by the test signal, and then the optical distance between the first test circuit board 401 and the second test circuit board 402 is determined by the test lookup table. The data is the optimal optical distance between the photoelectric receiving module 501 and the photoelectric transmitting module 502 of the heart rate module 50 when the skin of the user is currently tested, and the data comprises the displacement and the angle parameters between the two.
It should be noted that, as shown in fig. 2, when testing, the photoelectric receiving module 501 and the photoelectric transmitting module 502 of the heart rate module 50 are respectively mounted on the first test circuit board 401 and the second test circuit board 402, the photodiode is located at the edge of the main first test circuit board 401, the LED is located at the edge of the second test circuit board 402, and pins of the two modules are LED out by pins.
At this time, it should be noted that when the components of the Photo-emission module 502 and the Photo-receiving module 501 are the circuits as shown in the figure, the circuits of the two modules are the same, and each module includes a rectifying and controlling unit, an LED and a Photo-Diode (PD), at this time, the rectifying and controlling unit (AFE) of the Photo-emission module 502 and the LED of the Photo-receiving module 501 need to be disconnected, the driving pins of the LEDs of the two modules are connected by a flying wire, the AFE of the main PCB module is controlled by the bluetooth development board to drive the LEDs of the sub PCB module to work, and the PD of the main PCB module is synchronously sampled.
The foregoing description of the embodiments of the present invention is merely an optional embodiment of the present invention, and is not intended to limit the scope of the invention, and all equivalent structural modifications made by the present invention in the light of the present invention, the description of which and the accompanying drawings, or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (9)
1. Heart rate module test platform, heart rate module includes photoelectric receiving module and photoelectricity emission module, its characterized in that, heart rate module test platform includes:
a mounting table;
the test circuit board comprises a first test circuit board and a second test circuit board; one of the first test circuit board and the second test circuit board is used for detachably mounting the photoelectric receiving module, and the other one is used for detachably mounting the photoelectric transmitting module;
the angle adjusting piece is arranged on the mounting table and used for supporting the first test circuit board to be arranged, and the angle adjusting piece is used for adjusting the inclination angle of the first test circuit board; and
the displacement adjusting piece is arranged on the mounting table and used for supporting the second test circuit board to be arranged, and the displacement adjusting piece is used for adjusting the lifting height and the horizontal displacement of the second test circuit board;
the direction of the mounting table towards the first test circuit board is a first direction;
the displacement adjusting piece is used for adjusting the lifting height of the second test circuit board in the first direction and enabling the lifting height to be equal to the height of the first test circuit board in the first direction.
2. The heart rate module testing platform of claim 1, wherein the angle adjustment member comprises:
the height block is arranged on the mounting table;
and the inclined table is arranged between the first test circuit board and the height block and is fixedly connected with the height block.
3. The heart rate module testing platform of claim 2, wherein the tilt table comprises a first support column, a second support column, a first adjustment screw, a second adjustment screw, a first mounting plate, and a second mounting plate, wherein a first end of the first support column is fixedly connected to the height block, and a second end of the first support column is fixedly connected to the first mounting plate; the second support column is rotationally connected with the second mounting plate; the first adjusting screw penetrates through the first mounting plate and is in butt joint with the second mounting plate, and the second adjusting screw penetrates through the first mounting plate and is in butt joint with the second mounting plate; the first adjusting screw and the second adjusting screw are respectively arranged at two ends of the second supporting column and can rotate up and down to change the height and the inclination angle of the second supporting plate in the first direction.
4. The heart rate module testing platform of claim 2, wherein the displacement adjustment member comprises a triaxial displacement platform and a moving block, the moving block being disposed on the triaxial displacement platform.
5. The heart rate module testing platform of claim 4, wherein the triaxial displacement platform comprises:
the second direction adjusting piece is arranged on the mounting table through a second rotating piece;
the second direction adjusting knob is rotationally connected with the second rotating piece and drives the second direction adjusting piece to move in a second direction when the adjusting knob rotates;
the third direction adjusting piece is arranged on the mounting table through a third rotating piece;
the third-direction adjusting knob is rotationally connected with the third rotating piece and drives the third-direction adjusting piece to move in a third direction when the adjusting knob rotates;
the first direction adjusting piece is arranged on the mounting table through a first rotating piece, and the moving block is arranged on the first direction adjusting piece;
and the first direction adjusting knob is rotationally connected with the first rotating piece and drives the first direction adjusting piece to move in a first direction when the adjusting knob rotates.
6. The heart rate module testing platform of claim 5, wherein the first direction, the second direction, and the third direction are perpendicular to each other.
7. The heart rate module testing platform of claim 1, wherein the mounting platform is a porous optical backplane.
8. Heart rate test circuit, characterized in that it is realized based on a heart rate module test platform according to any one of claims 1-7, comprising a photo-electric receiving module mounted in one of the first and second test circuit boards, and further comprising a photo-electric transmitting module mounted in the other.
9. The heart rate test circuit of claim 8, wherein when the optoelectronic receiving module is mounted on the first test circuit board and the optoelectronic transmitting module is mounted in the second test circuit board, the heart rate test circuit further comprises a control module;
the control module is respectively connected to a photodiode of the photoelectric receiving module and an LED of the photoelectric transmitting module through a rectification feedback control unit of the photoelectric receiving module;
the control unit is used for lighting the LEDs and collecting the electric signals of the photodiodes so as to obtain the distances between the corresponding first test circuit board and the corresponding second test circuit board when the amplitude of the electric signals is maximum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110066905.9A CN112902993B (en) | 2021-01-19 | 2021-01-19 | Heart rate module test platform and heart rate test circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110066905.9A CN112902993B (en) | 2021-01-19 | 2021-01-19 | Heart rate module test platform and heart rate test circuit |
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| CN112902993A CN112902993A (en) | 2021-06-04 |
| CN112902993B true CN112902993B (en) | 2023-06-23 |
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| CN113729669A (en) * | 2021-10-14 | 2021-12-03 | 湖南可孚芯驰医疗科技有限公司 | PPG pulse wave simulator |
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