CN112315457A - Implanted micro-power consumption multi-physiological parameter recording device - Google Patents
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Abstract
The present disclosure provides an implantable micro-power consumption multi-physiological parameter recording device, comprising: the device comprises a biological motion analysis module, a blood oxygen saturation meter, an electrocardiogram analog circuit acquisition module, a microcontroller unit control center, a power management module and a storage module; wherein the storage module includes: static random access memory and secure digital memory cards. This is disclosed to adopt and regards ultra-low power consumption microcontroller unit control center as control core, with microcontroller unit control center and each collection module integration, realizes general multi-module signal acquisition and storage, simultaneously based on the control program of low-power consumption strategy, has gathered and has stored birds at long-time flight in-process multiple physiological parameter and environmental information, and the integrated level is high, small, can carry out direct monitoring and collection to multiple physiological information.
Description
Technical Field
The disclosure relates to the field of microsensors, in particular to an implantable micro-power consumption multi-physiological-parameter recording device.
Background
With the development of microsensor technology in recent years, portable and wearable physiological information monitoring equipment for human beings is gradually developed, but the development of physiological information monitoring equipment for wild animals is still under development, and particularly, various technical difficulties are required to face to free-range birds. On one hand, the activity area of birds is wide, particularly migratory wild birds, the habitat is not fixed, real-time tracking and monitoring are difficult, on the other hand, the movement intensity of the birds is strong, and collected signals are easily interfered by the movement of animals, so that the physiological information collection and monitoring of the wild birds are tried by people all the time.
At present, wild animal information of monitoring equipment used in China is generally limited to GPS (global Positioning system) position information, and the collection of physiological information is tried by few people all the time. Although the monitoring of the related information about wild birds is continuously carried out abroad at present, and the self-designed integrated circuit and the self-designed memory are implanted into the bodies of the birds to collect and record the heart rate and the body temperature of the birds, the working time of the information collection system is generally short, the collected data and the time span are limited, and the collection function of the equipment is single.
Disclosure of Invention
Technical problem to be solved
The present disclosure provides an implantable micro-power consumption multi-physiological parameter recording device to solve the above-mentioned technical problems.
(II) technical scheme
According to an aspect of the present disclosure, there is provided an implantable micro-power consumption multi-physiological parameter recording device, comprising:
the biological motion analysis module is arranged under the skin and/or on the body surface of the detected organism; the biological motion analysis module is used for acquiring the acceleration information of the detected organism so as to analyze the activity state and the intensity of the organism;
the oximeter is used for acquiring the blood oxygen saturation information of the tested living beings, namely calculating through the acquired pulse wave signals to acquire a blood oxygen saturation value;
the electrocardiogram analog circuit acquisition module is used for acquiring a heart rate signal of a detected organism;
the microcontroller unit control center is used for collecting, processing and storing the data of each physiological parameter acquisition module; the microcontroller unit control center includes:
the first communication module is in communication connection with the biological motion analysis module and is used for acquiring acceleration information acquired by the motion analysis module;
the second communication module is in communication connection with the blood oxygen saturation meter and is used for acquiring blood oxygen saturation information acquired by the blood oxygen saturation meter;
the digital-to-analog conversion module is used for receiving the heart rate signal of the detected living being acquired by the electrocardiogram analog circuit acquisition module;
the central processing unit receives the acceleration information sent by the first communication module, the blood oxygen saturation information sent by the second communication module and the heart rate signal sent by the digital-to-analog conversion module; the central processing unit sends an acceleration signal to the first communication module, and the central processing unit sends a blood oxygen saturation signal to the second communication module.
And the storage module is in communication connection with the control center of the microcontroller unit.
In some embodiments of the present disclosure, the biological motion analysis module comprises:
the accelerometer is used for acquiring motion parameters of a detected living being, and the motion parameters comprise any one or more of a movement signal, a posture signal and a living being motion signal;
the barothermometer is used for estimating the altitude of the position of the tested living being;
the magnetometer is used for preliminarily acquiring the geographic position of the detected living being according to the intensity of the terrestrial magnetic field, and the magnetometer is also used for assisting the accelerometer to carry out flight mode analysis and flight path analysis.
In some embodiments of the present disclosure, at least one surface of the oximeter is a transparent glass protection cover, and the transparent glass protection cover of the transparent glass protection cover needs to be directly contacted with a measurement target area during use; the blood oxygen saturation meter comprises a reflection type blood oxygen probe.
In some embodiments of the present disclosure, the electrocardiogram analog circuit acquisition module comprises:
the first electrocardio-electrode, the second electrocardio-electrode and the third electrocardio-electrode are arranged on the surface of the detected organism and are used for acquiring the original weak electrocardiosignals of the organism;
the input end of the right leg driving circuit is connected with the output end of the third electrocardio electrode;
the input end of the pre-amplification circuit is connected with the output ends of the first electrocardio electrode and the second electrocardio electrode; one output end of the preamplification circuit is connected with the right leg driving circuit; the preamplification circuit is used for carrying out difference on input signals of the first electrocardio electrode and the second electrocardio electrode and amplifying the input signals;
the input end of the secondary amplifying circuit is connected with the output end of the pre-amplifying circuit; and the output end of the secondary amplifying circuit is connected with the control center of the microcontroller unit.
In some embodiments of the present disclosure, the ecg analog circuit acquisition module further comprises:
the input end of the filter circuit is connected with the other output end of the pre-amplification circuit; the output end of the filter circuit is connected with the input end of the secondary amplifying circuit; the filter circuit is a Sallen-key type low-pass filter.
In some embodiments of the present disclosure, further comprising:
the power management module is used for triggering the control center of the microcontroller unit; the power supply management module comprises a plurality of voltage conversion modules with different voltage standards;
the microcontroller unit control center further comprises:
and the power consumption management module is in communication connection with the central processing unit and the power management module.
In some embodiments of the present disclosure, the storage module comprises:
the static random access memory is in communication connection with the control center of the microcontroller unit and is used for temporarily storing data generated in the signal acquisition process;
and the secure digital storage card is in communication connection with the second communication module and is used for storing after the static random access memory is full.
In some embodiments of the present disclosure, the microcontroller unit control center further comprises:
the first timing management module is used for managing the work flow of the central processing unit, and sequentially enables the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer in an interrupt mode of the first timing management module, so that the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer work in a time-sharing manner, and the normal operation of the implanted micro-power consumption multi-physiological parameter recording device is ensured, and the work power consumption of the central processing unit is reduced;
and the second timing management module is used for enabling the digital-to-analog conversion module to trigger the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer to sample.
In some embodiments of the present disclosure, the first communication module is an IIC communication module, and the second communication module is an SPI communication module.
In some embodiments of the present disclosure, the magnetometer is an anisotropic magnetoimpedance magnetometer; the signal of the magnetometer is input in three axes, the sampling precision of the magnetometer is 12 bytes, and 5 bytes are sampled each time; the accelerometer is a three-axis accelerometer, three axes of the three-axis accelerometer collect movement signals, posture signals and biological motion signals of a tested organism, the sampling precision is 12 bytes, and 5 bytes are sampled each time; the barometric thermometer samples 20 bytes each time.
(III) advantageous effects
According to the technical scheme, the implantable micro-power consumption multi-physiological parameter recording device disclosed by the invention has at least one or part of the following beneficial effects:
(1) the present disclosure concerns the collection of physiological information during biological motion, where the blood oxygen saturation information reflects primarily the biogas transport and energy consumption characteristics, the primary collection target signal. The blood oxygen saturation degree detection function is integrated, the blood oxygen saturation degree meter can be directly placed on the surface of a biological body or implanted under the skin to measure the blood oxygen saturation degree by adopting a photoplethysmography method, more accurate and real-time blood oxygen saturation degree values are obtained, the estimation of the blood oxygen saturation degree is not needed according to the heart volume and the weight of a living being, and the defects in the prior art are overcome.
(2) The central electrogram analog circuit acquisition module disclosed by the invention adopts a three-lead mode, and a right leg driving circuit is added to remove power frequency interference in an initial acquisition signal. The three electrocardio-electrodes are arranged on the surface of the measured organism, and the common-mode signal is amplified and output reversely from the third electrocardio-electrode and then is equivalent to strong negative feedback on the common-mode signal existing in a large range in the measured organism, so that the common-mode noise can be eliminated, and the common-mode rejection ratio of the circuit is improved.
(3) In the present disclosure, the frequency band of the electromyographic interference found by measurement is wide, generally ranging from 0.1Hz to over 1000Hz, and the frequency of the environmental electromagnetic interference except the power frequency interference is high, generally over 1 kHz. Because the frequency band of the electrocardiogram signal is narrow and the overall frequency is low, a filter circuit is added between the front amplifier and the rear amplifier to filter high-frequency interference.
(4) The parallel static random access memory with low power consumption is selected as the intermediate memory, so that the large current caused by the repeated starting of the secure digital memory card is reduced, and the power consumption optimization is realized.
(5) According to the difference of day and night activities of birds as research objects in the flying process, the central electrograph analog circuit acquisition module switches the working mode to select to enter the standby mode to reduce the running power consumption when the birds do not acquire and store; the sensors and the electrocardiogram analog circuit acquisition module adopt an intermittent acquisition working mode, and the sensors work in a time-sharing mode through the timing management module so as to finish acquisition targets with multiple parameters and low power consumption.
(6) This openly can real-time supervision and record birds physiological information when freely moving under the wild environment, improves the efficiency to birds research and protection.
(7) The method can be applied to monitoring other non-avian wild animals, and has certain promotion and reference significance for constructing a modern wild animal information monitoring platform.
Drawings
Fig. 1 is a schematic diagram of an implantable micro-power consumption multi-physiological parameter recording device according to an embodiment of the disclosure.
Fig. 2 is a schematic diagram of a control center of the microcontroller unit of fig. 1.
Fig. 3 is a schematic diagram of an acquisition module of the central electrogram analog circuit of fig. 1.
Fig. 4 is a schematic diagram of an implanted micro-power consumption multi-physiological parameter recording method according to an embodiment of the disclosure.
Detailed Description
In an exemplary embodiment of the present disclosure, an implantable micro-power consumption multi-physiological parameter recording device is provided. Fig. 1 is a schematic diagram of an implantable micro-power consumption multi-physiological parameter recording device according to an embodiment of the disclosure. As shown in fig. 1, the implantable micro-power consumption multi-physiological parameter recording device of the present disclosure includes: the device comprises a biological motion analysis module, a blood oxygen saturation meter, an Electrocardiogram (ECG) analog circuit acquisition module, a Microcontroller Unit (MCU) control center, a power management module and a storage module. Wherein the storage module includes: static Random-Access Memory (SRAM) and Secure Digital Memory (SD) cards. Each sensor in the oximeter and the biological motion analysis module is respectively in communication connection with the microcontroller unit control center, the electrocardiogram analog circuit acquisition module and the storage module are in communication connection with the microcontroller unit control center, and the power management module enables the electrocardiogram analog circuit acquisition module, the biological motion analysis module and the microcontroller unit control center.
The following describes each component of the implantable micro-power consumption multi-physiological parameter recording device provided in this embodiment in detail.
The blood oxygen saturation meter is implanted under the skin and/or on the body surface of the tested living being and calculates and obtains the blood oxygen saturation value of the tested living being through the obtained pulse wave signals. At least one surface of the oximeter is a transparent glass protective cover, and the transparent glass protective cover of the transparent glass protective cover needs to be in direct contact with a measurement target area when the oximeter is used. The blood oxygen saturation meter in this embodiment uses a reflective blood oxygen probe.
In the embodiment, attention is paid to information acquisition of birds in the migration process, and attention is paid to signals reflecting gas transportation, energy consumption and metabolic speed of the birds, wherein the blood oxygen saturation information mainly reflects gas transportation and energy consumption characteristics of the birds and is a main acquisition target signal. The blood oxygen saturation degree detection function is integrated, and the blood oxygen saturation degree can be measured by directly placing the blood oxygen saturation meter on the surface of a biological body or implanting the blood oxygen saturation meter under the skin by adopting a photo-plethysmometry method, so that a more accurate and real-time blood oxygen saturation degree value is obtained. The embodiment adopts an implanted measurement mode, on one hand, the acquired high-quality signals are guaranteed, particularly, the interference of ambient light is reduced aiming at light reflection type oxyhemoglobin saturation measurement, and on the other hand, the implanted measurement can avoid the loss and damage of the device by considering the environmental load of birds in the migration process. The present disclosure eliminates the need to estimate blood oxygen saturation based on the heart volume and weight of the living being, and overcomes the deficiencies of the prior art.
In connection with the optical plethysmography, use is made of the different absorptions of light of a specific wavelength band when propagating in different components of different tissues of the animal body. The commonly used measuring light has high absorptivity in arterial blood, which makes the residual light intensity after the light in the measuring wave band is transmitted in the animal body and is closely related to the optical path of the light transmitted in the arterial blood.
The biological motion analysis module is arranged under the skin and/or on the body surface of the detected organism and is used for acquiring the acceleration information of the detected organism so as to analyze the activity state and the intensity of the organism. Wherein, biological motion analysis module specifically includes: an accelerometer, a barometer, and a magnetometer. The following are introduced separately:
the accelerometer is used for acquiring motion parameters of the detected living beings, and the motion parameters comprise any one or more of a movement signal, a posture signal and a living body motion signal. The accelerometer is a three-axis accelerometer, the three axes of the three-axis accelerometer are used for acquiring the movement signal, the attitude signal and the biological motion signal of the tested organism, the sampling precision is 12 bytes, and 5 bytes are sampled each time.
For example: the three-axis accelerometer collects the motion parameter signals of the measured living beings in three axes, wherein the three-axis accelerometer collects any one of the conditions of collecting a moving signal, collecting a posture signal, collecting a living body motion signal, collecting a moving signal and a posture signal, collecting a moving signal and a living body motion signal, collecting a posture signal and a living body motion signal and collecting a moving signal, and the measured living body parameter signals can be obtained according to the needs of the technicians in the field for adjustment, which is not illustrated one by one. The embodiment is mainly suitable for researching the adaptive relevant shapes of the birds in the highland in the field environment, and the biological motion signal is specifically a flapping frequency signal.
And the barometric thermometer is used for estimating the altitude of the position of the tested living being. The barometric thermometer samples 20 bytes at a time. Specifically, the currently collected barometer is greatly influenced by external factors, and the influence factors are many, such as temperature and the like. Therefore, the barothermometer reads the temperature when reading the data, performs a second-order temperature compensation, and adopts a relational formula of altitude and barometric pressure:
wherein, P0Is standard atmospheric pressure, P is measured atmospheric pressure, Altitude is Altitude.
The magnetometer is used for preliminarily acquiring the geographic position of the detected living being according to the intensity of the terrestrial magnetic field, and the magnetometer is also used for assisting the accelerometer to carry out flight mode analysis and flight path analysis. Wherein the magnetometer is an anisotropic magnetoresistive magnetometer; the signal of the magnetometer is input in three axes, the sampling precision of the magnetometer is 12 bytes, each time the magnetometer and the barometer are sampled by 5 bytes, the magnetometer and the barometer are used for acquiring current environmental information, and the accelerometer is used for measuring the motion state of the organism, such as distinguishing the flying state of birds, flapping wings or sliding. Because of the influence of complex environments such as air interference airflow and the like, the simple acceleration signal is used for identifying the subdivided flight mode and the attitude change of birds, so that information such as a magnetic field and altitude can be introduced as assistance, and preliminary classification can be obtained through a subsequent data processing algorithm.
The microcontroller unit control center is used for collecting, processing and storing data of each physiological parameter acquisition module. The microcontroller unit control center includes: the first communication module, the second communication module, the digital-to-analog conversion module, and the central processing unit are respectively described in detail below.
The first communication module is in communication connection with the biological motion analysis module and is used for acquiring the acceleration information acquired by the motion analysis module. The first communication module is selected as the IIC communication module.
The second communication module is in communication connection with the blood oxygen saturation meter, and the second communication module is used for acquiring the blood oxygen saturation information acquired by the blood oxygen saturation meter. And the second communication module is selected as an SPI communication module.
And the digital-to-analog conversion module receives the heart rate signal of the detected living being acquired by the electrocardiogram analog circuit acquisition module.
The central processing unit receives the acceleration information sent by the first communication module, the blood oxygen saturation information sent by the second communication module and the heart rate signal sent by the digital-to-analog conversion module; the central processing unit sends an acceleration signal to the first communication module, and the central processing unit sends a blood oxygen saturation signal to the second communication module.
The microcontroller unit control center further comprises: the first timing management module, the second timing management module and the power consumption management module are respectively described in detail below.
The first timing management module is used for managing the work flow of the central processing unit, and under the interrupt mode of the first timing management module, the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer are sequentially enabled to work in a time-sharing mode, so that the normal operation of the implanted micro-power-consumption multi-physiological-parameter recording device is ensured, and the work power consumption of the central processing unit is reduced.
The second timing management module is used for enabling the digital-to-analog conversion module to trigger the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer to sample.
And the power consumption management module is respectively in communication connection with the central processing unit and the power management module. Specifically, after the system or the power supply is reset, the control center of the microcontroller unit is in a running state, the clock in the system provides a clock for the central processing unit, and the kernel executes the program code. When the central processing unit does not need to continuously run, the microcontroller unit can be used for controlling the sleep mode in the running mode of the central processing unit, and the power consumption of the system is reduced in the standby mode.
The acquisition module of the electrocardiogram analog circuit comprises: the device comprises a first electrocardio electrode, a second electrocardio electrode, a third electrocardio electrode, a right leg driving circuit, a preamplifier circuit, a filter circuit and a secondary amplifier circuit. The first electrocardio-electrode, the second electrocardio-electrode and the third electrocardio-electrode are arranged on the surface of the detected organism and are used for acquiring the original weak electrocardiosignals of the organism; the input end of the right leg driving circuit is connected with the output end of the third electrocardio electrode; the input end of the preamplification circuit is connected with the output ends of the first electrocardio electrode and the second electrocardio electrode; the output end of the preamplification circuit is connected with the right leg driving circuit; the preamplification circuit is used for carrying out difference on input signals of the first electrocardio electrode and the second electrocardio electrode and amplifying the input signals; the input end of the filter circuit is connected with the output end of the preamplifier circuit; the input end of the second-stage amplifying circuit is connected with the output end of the filter circuit; the output end of the secondary amplifying circuit is connected with the MCU control center; the second-stage amplifying circuit is used for amplifying the signal output by the filter circuit.
The electrocardiogram analog circuit acquisition module of the embodiment uses a three-lead mode, and a right leg driving circuit is added to remove power frequency interference in an initial acquisition signal. The three electrocardio-electrodes are arranged on the surface of the measured organism, and the common-mode signal is amplified and output reversely from the third electrocardio-electrode and then is equivalent to strong negative feedback on the common-mode signal existing in a large range in the measured organism, so that the common-mode noise can be eliminated, and the common-mode rejection ratio of the circuit is improved. The frequency band of the electromyographic interference found by measurement is wide, generally ranges from 0.1Hz to over 1000Hz, and the frequency of the environmental electromagnetic wave interference except the power frequency interference is high, generally over 1 kHz. Because the frequency band of the electrocardiogram signal is narrow and the overall frequency is low, a filter circuit is added between the front amplifier and the rear amplifier to filter high-frequency interference. In this embodiment, the filter circuit may be selected as a salen-key type low-pass filter, or may be selected as another filter that can achieve the same effect and is available to those skilled in the art, and is not limited specifically here.
The power management module is used for triggering the microcontroller unit control center. The power management module includes a plurality of voltage conversion modules of different voltage standards.
And the static random access memory is in communication connection with the control center of the microcontroller unit and is used for temporarily storing data generated in the signal acquisition process. The static random access memory is connected with the control center of the microcontroller unit through an 8-bit data line and a 20-bit address line, does not need additional clock line connection, and completes data reading work through the enabling pin controlled by a software program.
And the secure digital storage card is in communication connection with the second communication module and is used for storing after the static random access memory is full.
In an exemplary embodiment of the disclosure, an implantable micro-power consumption multi-physiological parameter recording method is also provided. The method comprises the following steps:
starting a power management module, entering an operation mode, enabling an ECG analog circuit acquisition module and an implanted micro-power consumption multi-physiological parameter recording device to carry out initialization work, and simultaneously starting a first timing management module;
and step two, the system selects to enter a standby mode, and the second timing management module is started to enable the digital-to-analog conversion module to trigger the biological motion analysis module to sample under the condition that the first timing management module finishes timing. And if the standby mode is not entered, returning to the step one. And if the system selects to enter the standby mode, the first timing management module continues to work in the standby mode under the condition that the timing is not finished.
And step three, under the condition that the first timing management module is interrupted, the first timing management module sequentially enables the accelerometer, the blood oxygen saturation meter, the magnetometer and the barothermometer to enable the accelerometer, the blood oxygen saturation meter, the magnetometer and the barothermometer to work in a time-sharing mode so as to ensure the normal operation of the implanted micro-power-consumption multi-physiological-parameter recording device and reduce the working power consumption of the central processing unit. The data collected by each sensor specifically includes:
the accelerometer acquires motion parameters of the tested living beings, wherein the motion parameters comprise any one or more of movement signals, posture signals and biological motion signals.
The barothermometer estimates the altitude of the location of the measured creature.
The magnetometer preliminarily acquires the geographic position of the detected living being according to the intensity of the terrestrial magnetic field, and is also used for assisting the accelerometer to carry out flight mode and flight path analysis.
The blood oxygen saturation meter is used for acquiring the blood oxygen saturation value of the tested living beings.
And step four, the accelerometer, the blood oxygen saturation meter, the magnetometer and the barometer complete sampling, the SRAM is fully stored, the SD card is not fully stored, the acquired data are stored in the SD card, and the storage space of the SRAM is emptied.
Another example of storage is that the accelerometer, oximetry, magnetometer, and barothermometer have all completed sampling, the SRAM is not full, and the collected data is stored in the SRAM.
Yet another example of storage is that the accelerometer, oximetry, magnetometer, and barothermometer have all completed sampling, the SRAM has been full and the SD card has also been full, entering a stop mode, waiting for the user to read the data.
Fig. 4 is a schematic diagram of an implanted micro-power consumption multi-physiological parameter recording method according to an embodiment of the disclosure. As shown in fig. 4, the implanted micro-power consumption multi-physiological parameter recording method according to the embodiment of the present disclosure includes:
step a, starting a power management module, entering a running mode, enabling an electrocardiogram analog circuit acquisition module, controlling each communication module in a center to carry out initialization work by a microcontroller unit, and starting a Real Time Clock (RTC) for timing.
And b, selecting to enter a standby mode.
And c, judging whether the timing of the real-time clock is finished, entering the step d if the timing of the real-time clock is finished, and continuing to work in the standby mode if the timing of the real-time clock is not finished.
And d, starting a second timing management module, enabling a digital-to-analog conversion module to sample, and triggering the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer to sample.
Step e, judging whether the first timing management module generates interruption or not; if the first timing management module does not generate interruption, staying in the step e for waiting; and f, if the first timing management module generates an interrupt, entering the step f.
And f, utilizing the first timing management module to enable the accelerometer, the blood oxygen saturation meter, the magnetometer and the barometer to acquire data in sequence.
Step g, judging whether the accelerometer, the blood oxygen saturation meter, the magnetometer and the barometer are completely collected or not; if the sampling is not completed, entering the step e; and if the sampling is finished, entering the step h.
H, judging whether the storage space of the static random access memory is full; if the storage space of the static random access memory is not full, storing the data in the static random access memory, and then entering the step b; if the storage space of the SRAM is full, step i is entered.
Step i, judging whether the storage space of the secure digital storage card is full; if the storage space of the secure digital storage card is not full, the storage data of the static random access memory is transferred into the secure digital storage card, then the step b is returned, if the storage space of the secure digital storage card is full, the shutdown mode is directly entered, and the user is waited to read the data.
So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Further, the above definitions of the various elements and methods are not limited to the various specific structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by those of ordinary skill in the art.
From the above description, those skilled in the art should clearly understand that the implantable micro-power consumption multi-physiological parameter recording device of the present disclosure is provided.
In summary, the present disclosure provides a method for implementing universal multi-module signal acquisition and storage by using an MCU with ultra-low power consumption as a control core, assisting peripheral functional modules, and integrating the MCU with each acquisition module, which has high system integration level, small volume, capability of directly measuring corresponding physiological information, and wide application prospect in the field of biological signal acquisition.
It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure.
Unless otherwise indicated, the numerical parameters set forth in the specification and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by the present disclosure. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". Generally, the expression is meant to encompass variations of ± 10% in some embodiments, 5% in some embodiments, 1% in some embodiments, 0.5% in some embodiments by the specified amount.
Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.
In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various disclosed aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, disclosed aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this disclosure.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. An implantable micro-power consumption multi-physiological parameter recording device, comprising:
the biological motion analysis module is arranged under the skin and/or on the body surface of the detected organism; the biological motion analysis module is used for acquiring the acceleration information of the detected organism so as to analyze the activity state and the intensity of the organism;
the oximeter is used for acquiring the blood oxygen saturation information of the tested living beings, namely calculating through the acquired pulse wave signals to acquire a blood oxygen saturation value;
the electrocardiogram analog circuit acquisition module is used for acquiring a heart rate signal of a detected organism;
the microcontroller unit control center is used for collecting, processing and storing the data of each physiological parameter acquisition module; the microcontroller unit control center includes:
the first communication module is in communication connection with the biological motion analysis module and is used for acquiring acceleration information acquired by the motion analysis module;
the second communication module is in communication connection with the blood oxygen saturation meter and is used for acquiring blood oxygen saturation information acquired by the blood oxygen saturation meter;
the digital-to-analog conversion module is used for receiving the heart rate signal of the detected living being acquired by the electrocardiogram analog circuit acquisition module;
the central processing unit receives the acceleration information sent by the first communication module, the blood oxygen saturation information sent by the second communication module and the heart rate signal sent by the digital-to-analog conversion module; the central processing unit sends an acceleration signal to the first communication module, and the central processing unit sends a blood oxygen saturation signal to the second communication module.
And the storage module is in communication connection with the control center of the microcontroller unit.
2. The implantable micro-power multi-physiological parameter recording device according to claim 1, wherein the biological motion analysis module comprises:
the accelerometer is used for acquiring motion parameters of a detected living being, and the motion parameters comprise any one or more of a movement signal, a posture signal and a living being motion signal;
the barothermometer is used for estimating the altitude of the position of the tested living being;
the magnetometer is used for preliminarily acquiring the geographic position of the detected living being according to the intensity of the terrestrial magnetic field, and the magnetometer is also used for assisting the accelerometer to carry out flight mode analysis and flight path analysis.
3. An implantable micro-power consumption multi-physiological parameter recording device according to claim 1, wherein at least one surface of the blood oxygen saturation meter is a transparent glass protection cover, and the transparent glass protection cover of the transparent glass protection cover is required to be in direct contact with a measurement target area during use; the blood oxygen saturation meter comprises a reflection type blood oxygen probe.
4. The implantable micro-power consumption multi-physiological parameter recording device according to claim 1, wherein the electrocardiogram analog circuit acquisition module comprises:
the first electrocardio-electrode, the second electrocardio-electrode and the third electrocardio-electrode are arranged on the surface of the detected organism and are used for acquiring the original weak electrocardiosignals of the organism;
the input end of the right leg driving circuit is connected with the output end of the third electrocardio electrode;
the input end of the pre-amplification circuit is connected with the output ends of the first electrocardio electrode and the second electrocardio electrode; one output end of the preamplification circuit is connected with the right leg driving circuit; the preamplification circuit is used for carrying out difference on input signals of the first electrocardio electrode and the second electrocardio electrode and amplifying the input signals;
the input end of the secondary amplifying circuit is connected with the output end of the pre-amplifying circuit; and the output end of the secondary amplifying circuit is connected with the control center of the microcontroller unit.
5. The implantable micro-power consumption multi-physiological parameter recording device according to claim 4, wherein the ECG analog circuit acquisition module further comprises:
the input end of the filter circuit is connected with the other output end of the pre-amplification circuit; the output end of the filter circuit is connected with the input end of the secondary amplifying circuit; the filter circuit is a Sallen-key type low-pass filter.
6. The implantable micro-power multi-physiological parameter recording device according to claim 1, further comprising:
the power management module is used for triggering the control center of the microcontroller unit; the power supply management module comprises a plurality of voltage conversion modules with different voltage standards;
the microcontroller unit control center further comprises:
and the power consumption management module is in communication connection with the central processing unit and the power management module.
7. The implantable micro-power multi-physiological parameter recording device according to claim 1, wherein the storage module comprises:
the static random access memory is in communication connection with the control center of the microcontroller unit and is used for temporarily storing data generated in the signal acquisition process;
and the secure digital storage card is in communication connection with the second communication module and is used for storing after the static random access memory is full.
8. The implantable micro-power consumption multi-physiological parameter recording device according to claim 1, wherein the micro-controller unit control center further comprises:
the first timing management module is used for managing the work flow of the central processing unit, and sequentially enables the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer in an interrupt mode of the first timing management module, so that the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer work in a time-sharing manner, and the normal operation of the implanted micro-power consumption multi-physiological parameter recording device is ensured, and the work power consumption of the central processing unit is reduced;
and the second timing management module is used for enabling the digital-to-analog conversion module to trigger the accelerometer, the blood oxygen saturation meter, the magnetometer and the air pressure thermometer to sample.
9. The implantable micro-power consumption multi-physiological parameter recording device according to claim 1, wherein the first communication module is an IIC communication module, and the second communication module is an SPI communication module.
10. The implantable micro-power consumption multi-physiological parameter recording device according to claim 2, wherein the magnetometer is an anisotropic magneto-resistive magnetometer; the signal of the magnetometer is input in three axes, the sampling precision of the magnetometer is 12 bytes, and 5 bytes are sampled each time; the accelerometer is a three-axis accelerometer, three axes of the three-axis accelerometer collect movement signals, posture signals and biological motion signals of a tested organism, the sampling precision is 12 bytes, and 5 bytes are sampled each time; the barometric thermometer samples 20 bytes each time.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1056772A (en) * | 1964-02-05 | 1967-01-25 | United Aircraft Corp | Physiological measuring apparatus |
| CN201641977U (en) * | 2010-03-29 | 2010-11-24 | 张鑫 | Portable sleeping physiological parameter recording device |
| CN201814572U (en) * | 2010-06-18 | 2011-05-04 | 上海理工大学 | Portable electrocardiogram data real time acquisition device |
| CN204600458U (en) * | 2015-02-11 | 2015-09-02 | 上海夏先机电科技发展有限公司 | A kind of portable general type three leads electrocardioscanner |
| CN105193408A (en) * | 2015-11-04 | 2015-12-30 | 恩识医疗科技(上海)有限公司 | Attached dynamic electrocardiogram recorder and system thereof |
| CN211270704U (en) * | 2019-11-28 | 2020-08-18 | 苏州百慧华业精密仪器有限公司 | Portable developments electrocardio blood pressure respiratory wave record appearance |
-
2020
- 2020-11-03 CN CN202011212859.0A patent/CN112315457B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1056772A (en) * | 1964-02-05 | 1967-01-25 | United Aircraft Corp | Physiological measuring apparatus |
| CN201641977U (en) * | 2010-03-29 | 2010-11-24 | 张鑫 | Portable sleeping physiological parameter recording device |
| CN201814572U (en) * | 2010-06-18 | 2011-05-04 | 上海理工大学 | Portable electrocardiogram data real time acquisition device |
| CN204600458U (en) * | 2015-02-11 | 2015-09-02 | 上海夏先机电科技发展有限公司 | A kind of portable general type three leads electrocardioscanner |
| CN105193408A (en) * | 2015-11-04 | 2015-12-30 | 恩识医疗科技(上海)有限公司 | Attached dynamic electrocardiogram recorder and system thereof |
| CN211270704U (en) * | 2019-11-28 | 2020-08-18 | 苏州百慧华业精密仪器有限公司 | Portable developments electrocardio blood pressure respiratory wave record appearance |
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