CN111419270A - Wearable fetal sound collection detector, monitoring device, system and method - Google Patents
Wearable fetal sound collection detector, monitoring device, system and method Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
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- A—HUMAN NECESSITIES
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- 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
- A61B5/02411—Detecting, measuring or recording pulse rate or heart rate of foetuses
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- A—HUMAN NECESSITIES
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Abstract
The invention provides a wearable fetal sound collecting detector, a monitoring device, a system and a method. The wearable fetal sound collection detector of the present invention is characterized by comprising: the attaching part is used for attaching the wearable fetal sound collecting detector to the abdomen of the pregnant woman; a fetal sound collecting part for collecting the fetal heart sound in the abdomen of the pregnant woman; and the fetal sound detection part is used for detecting the heart sound collected by the fetal sound collection part and converting the heart sound into an acoustic signal. The wearable fetal sound monitoring device provided by the invention utilizes the plurality of fetal sound collecting detectors, so that the heartbeat of the fetus can be effectively monitored no matter how the fetus moves, and the problems that the heart sound signal of the fetus is weak, and the maximum signal position is difficult to determine and is continuously changed are effectively solved.
Description
Technical Field
The invention relates to the field of sensors, in particular to a wearable fetal sound collecting detector, a monitoring device, a system and a method.
Background
In recent years, with the rapid development of smart phones and mobile internet, wearable devices such as smart bands and smart watches gradually enter our lives. Still further, wearable body characteristic sensors have also begun to be accepted, as disclosed in patent application No. 201410340111.7. The intelligent devices greatly facilitate our lives, and enable a plurality of life layers such as our communication, health monitoring and health management to be changed in a favorable mode. The intelligent bracelet and the intelligent watch can remind people of new information at any time and monitor the daily amount of exercise; the wearable human body characteristic sensor can monitor heart sounds, electrocardio, blood oxygen, blood pressure, body temperature and other physiological indexes.
But the current wearable human body feature sensors are basically used for human body feature monitoring of adults. For monitoring a fetus, especially the heart beat of the fetus, the monitoring is basically performed by using an ultrasonic Doppler method. The low-energy ultrasonic Doppler can accurately detect the heartbeat of the fetus. In a hospital clinic environment, the low energy ultrasound has a substantially negligible impact on the health of the fetus because the fetal heartbeat is occasionally tested. However, pregnant women perform daily monitoring of the fetus in a home environment, and if the monitoring is performed several times a day, the influence cannot be ignored, so that experts generally do not recommend that the pregnant women use an ultrasonic doppler meter at home to frequently measure the heartbeat of the fetus.
Before the absence of an ultrasonic doppler, the doctor uses a stethoscope to detect the fetal heartbeat. Since the stethoscope is completely passive to sense the heart vibration of the fetus, it is not harmful to the health of the fetus. However, the fetal heart beat sound appears very weak as the fetus constantly changes position in the mother, plus other noises of the uterus and the abdominal cavity of the pregnant woman. The obstetrician's use of a stethoscope to detect fetal heart beats often requires years of training and experience accumulation. Experience has shown that the strongest point of fetal sounds is not in the heart of the fetus closest to the mother's abdomen, but in the buttocks of the fetus. It can be simply understood that the fetal heart sound is amplified through the entire fetal spine and buttocks, and is strongest at the fetal buttocks. As the fetus continues to move within the mother, it requires considerable experience and patience to determine where the buttocks are. In addition, due to the movement of the fetus, it is almost impossible to achieve long-term monitoring.
The fetal sound stethoscope specially used for pregnant women is also available in the market, and because the fetal heart sound signal is weak, and the fetus continuously moves, even for professional medical care personnel, years of training and experience are required, and for ordinary pregnant women, the use difficulty is imaginable, so that the actual use effect of the devices is very poor.
Disclosure of Invention
One of the objectives of the present invention is to provide a wearable fetal sound collecting detector, a monitoring device, a system and a method, which can effectively solve the difficult problems of weak fetal heart sound signal, difficult determination of the maximum signal position, continuous variation and the like, and effectively monitor the heartbeat of the pregnant woman and the fetus. Of course, the present invention is not limited to simultaneously achieve all the above technical effects, and may also achieve only one or several of the technical effects.
According to an aspect of the present invention, there is provided a wearable fetal sound collection detector, including: the attaching part is used for attaching the wearable fetal sound collecting detector to the abdomen of the pregnant woman; a fetal sound collecting part for collecting the fetal heart sound in the abdomen of the pregnant woman; and the fetal sound detection part is used for detecting the heart sound collected by the fetal sound collection part and converting the heart sound into an acoustic signal.
Further, the wearable fetal sound collecting detector as described above, wherein the fetal sound collecting part is a micro-acoustic chamber having a fetal sound collecting port facing an abdominal opening of the pregnant woman; the attaching part is bio-gel avoiding the fetal sound collecting port.
According to another aspect of the present invention, there is provided a wearable fetal sound monitoring apparatus, including: at least one of the aforementioned wearable fetal sound collection detectors; and the at least one central control unit is used for sampling, converting and outputting the acoustic signals output by the wearable fetal sound collection detector.
Further, the wearable fetal sound monitoring device as described above, is characterized by comprising a plurality of said wearable fetal sound collecting detectors arranged in a matrix, and one said central control unit; the wearable fetal sound collecting detectors synchronously detect the acoustic signals and respectively transmit the acoustic signals to the central control unit in a wired or wireless mode.
Further, the wearable fetal sound monitoring device is characterized by comprising a plurality of wearable fetal sound collecting detectors arranged in a matrix, and a plurality of central control units integrated with the wearable fetal sound collecting detectors; the wearable fetal sound collecting detectors synchronously detect the acoustic signals and respectively transmit the acoustic signals to the corresponding central control units in a wired or wireless mode.
Further, the wearable fetal sound monitoring apparatus as described above, wherein the central control unit comprises: the sampling module is used for sampling the acoustic signals output by the fetal sound collecting detector; the conversion module is used for converting the acoustic signals collected by the sampling module into digital signals; the storage module is used for storing the digital signal; the communication module is used for transmitting the digital signals stored by the storage module to the outside; a microprocessor for controlling the modules within the central control unit as a whole.
Further, as aforementioned wearable fetal sound monitoring device, characterized by still includes: at least one ambient sound detection unit, which is provided corresponding to the at least one wearable fetal sound collection detector, and synchronously collects and detects ambient acoustic signals existing in the external environment; the environment acoustic signal is transmitted to the central control unit, converted into a digital signal by the conversion module and stored in the storage module.
Further, as aforementioned wearable fetal sound monitoring device, characterized by still includes: a wireless charging module for receiving wireless energy transmitted from a local power source to provide operating energy for the wearable fetal sound monitoring device.
Another technical solution of the present invention provides a fetal sound monitoring system, including: a wearable fetal sound monitoring device as described above; the intelligent terminal receives the data transmitted by the wearable fetal sound monitoring device, performs correlation analysis on the data corresponding to the wearable fetal sound collecting detectors and outputs an analysis result; and the data center is used for receiving and storing the analysis result transmitted by the intelligent terminal, and performing classification filing and deep data mining.
Another technical solution of the present invention provides a fetal sound monitoring system, including: a wearable fetal sound monitoring device as described above; the data center is used for receiving the data transmitted by the wearable fetal sound monitoring device, performing correlation analysis on the data corresponding to the wearable fetal sound collecting detectors, and performing classification filing and deep data mining on the analysis result; and the intelligent terminal receives and displays the analysis result from the data center.
Another technical solution of the present invention provides a fetal sound monitoring method, including: a step of collecting and detecting fetal sound data of a fetus in the abdomen of the pregnant woman using any one of the aforementioned wearable fetal sound monitoring devices; and performing correlation analysis on fetal sound data corresponding to a plurality of wearable fetal sound collecting detectors in the wearable fetal sound monitoring device, and outputting an analysis result.
Further, the method for monitoring fetal sound as described above, further comprising: and a step of performing noise elimination on the fetal sound data of the wearable fetal sound monitoring device by using the environmental sound detection part to synchronously collect and detect environmental acoustic signals existing in the external environment with the wearable fetal sound monitoring device.
Further, the method for monitoring fetal sound as described above, further comprising: and the intelligent terminal transmits a sampling signal to the sampling module of the fetal sound monitoring device so as to control the start and stop of data acquisition of the fetal sound monitoring device.
Further, the method for monitoring fetal sound as described above, further comprising: and converting and storing the collected and detected fetal sound data.
The wearable fetal sound monitoring device disclosed by the invention utilizes the plurality of fetal sound collecting detectors, so that the heartbeat of the fetus can be effectively monitored no matter how the fetus moves, and the harmless continuous monitoring of the heartbeat of the fetus is realized. Meanwhile, the synchronism of data acquisition of the multi-channel sensors is realized, correlation analysis is carried out on the acquired data, the heartbeat of the pregnant woman and the fetus is effectively monitored by utilizing the difference of the heartbeat frequencies of the pregnant woman and the fetus, and the difficult problems that the heart sound signal of the fetus is weak, the maximum signal position is difficult to determine and changes constantly are effectively solved. Because the sensors used are all passively collected and do not actively send energy signals, the fetus is not damaged. And a plurality of conversion modules are adopted, so that the data sampling has high enough frequency. The invention also adds an acoustic sensor for collecting the environmental noise, which is used for offsetting the environmental noise in the data collected by the fetus and ensures higher signal-to-noise ratio.
Drawings
FIG. 1 is a schematic view of one embodiment of a fetal sound monitoring system of the present invention.
Fig. 2 is a schematic structural diagram of one embodiment of the wearable fetal sound monitoring apparatus of the present invention.
Fig. 3 is a schematic structural view of another embodiment of the wearable fetal sound monitoring apparatus of the present invention.
Fig. 4 is a block diagram of the wearable fetal sound monitoring apparatus according to the present invention.
Fig. 5 is a schematic view of an embodiment of a specific application of the wearable fetal sound monitoring apparatus of the present invention.
Detailed Description
Exemplary embodiments of the present invention and features thereof will be described in detail below with reference to the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention, but it will be appreciated by those of ordinary skill in the art that these specific details are not intended to be exhaustive or to be construed as limiting the embodiments of the present invention. Additionally, some well-known methods, procedures, components, and circuits have not been described in detail herein.
First, an outline of the present invention is explained.
The invention provides a wearable fetal sound collecting detector, a monitoring device, a monitoring system and a method. The invention provides a wearable fetal sound monitoring device, which can collect acoustic signals of fetal heartbeat from different positions of the abdomen of a pregnant woman by using acoustic sensors of a plurality of wearable fetal sound collecting detectors, can effectively monitor the fetal heartbeat no matter how a fetus moves, can convert the fetal heartbeat into a digital signal through an analog-to-digital converter, then stores the digital signal and transmits the digital signal to an intelligent terminal or a data center to perform correlation analysis on collected data, and effectively monitors the heartbeat of the pregnant woman and the fetus by using the difference of the heartbeat frequencies of the pregnant woman and the fetus. In the fetal sound monitoring system, the wearable fetal sound monitoring device transmits the obtained data result to a data center or an intelligent terminal through a communication module, wherein the data center can classify and file data and mine deep data, and feed back the data and the analysis result to the intelligent terminal, namely an intelligent mobile phone of a pregnant woman, and can feed back the data and the analysis result to a doctor or a hospital terminal appointed by the pregnant woman and/or a family terminal appointed by the pregnant woman.
The present invention will be described with reference to specific examples.
[ System Structure ]
FIG. 1 is a schematic view of one embodiment of a fetal sound monitoring system of the present invention. As shown in fig. 1, in one embodiment, the system includes a fetal sound monitoring device 10, a smartphone 14, a family end 13, a doctor/hospital end 12, a data center 11, and a wireless network 15. The smart phone 14, the family end 13 and the doctor/hospital end 12 are intelligent terminals. The fetal sound monitoring device 10, the smart phone 14, the family end 13, the doctor/hospital end 12, and the data center 11 may establish communication connection through their respective communication modules via the wireless network 15.
The fetal sound monitoring system of the present invention may include one or more fetal sound monitoring devices 10 to achieve multi-channel data synchronous acquisition. When the fetal sound monitoring system is used, the arrangement shape and the interval of the plurality of fetal sound monitoring devices 10 are not limited, but are preferably in a matrix arrangement mode, so that the effect of effectively monitoring the fetal heartbeat no matter how the fetus moves can be more comprehensively realized.
In this embodiment, the smart phone 14, the family end 13, and the doctor/hospital end 12 are smart terminals, and are configured to receive data transmitted from the fetal sound monitoring apparatus 10, perform correlation analysis on data corresponding to the fetal sound collecting detectors 101 in the multiple fetal sound monitoring apparatuses 10, and output an analysis result to the data center 11 or be configured to receive and display the data and the analysis result from the data center 11.
The data center 11 is configured to receive and store data and analysis results transmitted from the intelligent terminal, and perform classification filing and deep data mining, or is configured to receive data transmitted from the wearable fetal sound monitoring apparatus 10, perform correlation analysis on data corresponding to each of the plurality of wearable fetal sound collecting detectors 101, and perform classification filing and deep data mining on the analysis results.
The wireless network 15 is used for realizing data transmission among the fetal sound monitoring device 10, the data center 11 and each intelligent terminal.
In this embodiment, the fetal sound monitoring apparatus 10 may perform data transmission on the collected fetal sound data to the smart phone 14 through the wireless network 15, and may also perform data transmission on the data center 11 through the wireless network 15.
When the fetal sound monitoring device 10 transmits data to the smart phone 14, the smart phone 14 performs correlation analysis on data corresponding to each of the wearable fetal sound collecting detectors 101, displays and stores the data and analysis results, outputs the data and analysis results to the data center 11 through the wireless network 15, and feeds back the data and the updated analysis results to the smart phone 14 of the user side or other ends after the data center 11 performs classification filing and deep data mining. Of course, the smart phone 14 may also transmit the data information and the analysis result to other terminals and the data center 11 through the wireless network 15, and update the data and the updated analysis result to each terminal after the data center 11 performs classification filing and deep data mining.
When the fetal sound monitoring device 10 transmits data to the data center 11, the data center 11 receives and performs correlation analysis on data corresponding to each of the wearable fetal sound collecting detectors 101, and feeds back the data and the analysis results to the user-side smart phone 14 or other terminals after performing classification filing and deep data mining on the analysis results.
Here, although the overall architecture of the fetal sound monitoring system is presented by a hardware structure including the smartphone 14, the family end 13, the doctor/hospital end 12, the data center 11, and the like, the fetal sound monitoring system of the present invention is implemented by the functional units to be described later, and it should be understood by those skilled in the art that the implementation of the functional blocks is not limited by the hardware structure, and therefore, the fetal sound monitoring system of the present invention is not limited to the hardware structure described in the application document, and any structure that covers the functions that can be implemented by the present invention is within the scope of the present invention as claimed.
In the present invention, the smart terminal including the smart phone 14, the family terminal 13, and the doctor/hospital terminal 12 may transmit or receive signals through a manner such as wired or wireless network, or may process or store program instructions in a physical storage state such as a memory. Each smartphone 14, family end 13, doctor/hospital end 12 may be an electronic device including hardware, software, or embedded logic components, or a combination of two or more such components, and capable of performing the appropriate functions implemented or supported by these devices. For example, the smart phone 14, the family member terminal 13, and the doctor/hospital terminal 12 may also be smart phones, tablet computers, portable electronic mail devices, electronic books, handheld game machines and/or game controllers, notebook computers, netbooks, handheld electronic devices, smart bands, and other smart devices, and may also be televisions, outdoor display screens, or other various devices that can be installed with application clients or can use network servers, and so on. The present invention encompasses any suitable user equipment. Each end device may provide access to the network for a user using the end device. Specifically, each end device may include: a processing device including an application processing section and a radio frequency/digital signal processor; a display screen; a keypad that may include physical keys, touch keys overlaid on a display screen, or a combination thereof; a subscriber identity module card; memory devices that may include ROM, RAM, flash memory, or any combination thereof; a Wi-Fi and/or Bluetooth interface; a wireless telephone interface; a power management circuit with an associated battery; a USB interface and a connector; an audio management system with associated microphone, speaker and headphone jack; and various optional accessory components such as digital cameras, global positioning systems, accelerators, etc. In addition, various client applications may be installed on the end devices, which may be used to allow the user device to be used to communicate commands appropriate for operation with other devices. Such applications may be downloaded from a server and installed in the memory of each end device, or may have been previously installed on each end device.
For example, a Server may refer to a single physical processor with associated communications and data storage and database facilities, or it may refer to a networked or clustered collection of processors, associated networks and storage devices, and operates on software and one or more database systems and application software supporting the services provided by the Server.
In the present invention, wireless network 15 encompasses any suitable wireless network, such as, but not limited to, a 4G network, a 3G network, GPRS, Wi-Fi connection, Bluetooth connection, WiMAX connection, Zigbee connection, UWB (ultra-wideband) connection, and other now known or later developed wireless connections, etc. additionally, the network coupling data center 11 and end devices together can also be a wired network, such as, but not limited to, fiber optic broadband, ADS L broadband, etc.
[ wearable fetal sound monitoring device ]
In the present embodiment, the surface of the fetal sound monitoring apparatus 10 that contacts the skin is referred to as the bottom surface, and the direction is downward.
Fig. 2 is a schematic structural diagram of one embodiment of the wearable fetal sound monitoring apparatus of the present invention. Such as
Fig. 2 shows a wearable fetal sound collection detector 101, a wire 104, a central control unit 105 and an ambient acoustic sensor 106. The wearable fetal sound collecting detector 101 includes a ring-shaped bio-gel 100 as an attached part, a micro-acoustic cavity 103 as a fetal sound collecting part, and an acoustic sensor 102 as a fetal sound detecting part. In the present embodiment, the wearable fetal sound collecting detector 101 is a cylindrical device, but the shape is not limited thereto, and may be any shape such as a square shape or a truncated cone shape.
Wherein the ring-shaped bio-gel 100 is located at the bottom of the fetal sound collecting detector 101 for contacting the skin of the pregnant woman to stick the fetal sound collecting detector 101 to the abdomen of the pregnant woman. At a position above the ring-shaped bio-gel 100 and in the middle of the fetal sound collecting detector 101 is a micro-acoustic chamber 103 having a fetal sound collecting port opened to face the abdomen of the pregnant woman for collecting fetal heart sounds emitted from the abdominal cavity of the pregnant woman. Here, in order to avoid the bio-gel from affecting the micro-acoustic chamber 103 to collect the sound emitted from the abdominal cavity of the pregnant woman, the ring-shaped bio-gel 100 should avoid the fetal sound collecting port of the micro-acoustic chamber 103 and cannot cover the micro-acoustic chamber 103, and of course, the ring-shaped bio-gel 100 may be in the shape of a circular ring, an elliptical ring, a square ring or other shapes, wherein the size of the inner diameter of the ring and the difference between the inner diameter and the outer diameter, i.e., the width of the ring, are not limited, and the inner diameter is preferably. An acoustic sensor 102 is disposed above the micro-acoustic cavity 103 for detecting heart sounds collected by the micro-acoustic cavity 103 and converting the heart sounds into acoustic signals. The acoustic sensor 102 is connected to the central control unit 105 via a wire 104, but of course, the acoustic sensor 102 and the central control unit 105 may be connected not by wire but by wireless. The central control unit 105 is configured to sample, convert, and output an acoustic signal output from the acoustic sensor 102 of the fetal sound collecting detector 101. The central control unit 105 further includes an environmental acoustic sensor 106 as an environmental sound detecting unit, which is disposed corresponding to the fetal sound collecting detector 101, and is configured to synchronously collect and detect environmental acoustic signals existing in the environment facing the external environment, and of course, the environmental acoustic sensor 106 may be disposed in the wearable fetal sound collecting detector 101, or may be disposed separately. The ambient acoustic signal is transmitted to the central control unit 105, converted into a digital signal by a conversion module, i.e., an analog-to-digital converter 404, and stored in a flash 406.
In this embodiment, it should be noted that the ring-shaped bio-gel 100, the micro-acoustic cavity 103, and the acoustic sensor 102 form the collection detector 101, the central control unit 105 and the collection detector 101 are designed separately in this embodiment, and in a specific application, a plurality of wearable fetal sound collection detectors 101 and a central control unit 105 may be arranged in a matrix, and the plurality of wearable fetal sound collection detectors 101 detect acoustic signals synchronously and transmit the acoustic signals to the central control unit 105 through the wires 104, or transmit the acoustic signals to the central control unit 105 in a wireless manner, or naturally, in a specific application, a plurality of central control units 105 may be provided, and a specific application manner will be described in detail below in an embodiment. Here, both the central control unit 105 and the collecting detector 101 may also be designed in one piece, as will be described in detail in another embodiment below.
Fig. 3 is a schematic structural view of another embodiment of the wearable fetal sound monitoring apparatus of the present invention. Such as
As shown in fig. 3, the central control unit 105 and the collecting detectors 101 are designed as a whole, in this embodiment, the same structures as those in the previous embodiment are denoted by the same reference numerals, and are not repeated herein, and the differences from the previous embodiment will be mainly described herein, wherein the central control unit 105 further includes a power switch 107 for turning on or off the power supply of the wearable fetal sound monitoring device 10, an indication L ED lamp 108 for displaying the current state of the power switch, and here, the ambient acoustic sensor 106 is disposed on the top of the central control unit 105.
Fig. 4 is a block diagram of the wearable fetal sound monitoring apparatus 10 according to the present invention. As shown in fig. 4, the functional modules of wearable fetal sound monitoring apparatus 10 include micro-acoustic cavity 401(103), acoustic sensor 402(102), sampling module or sample holder 403, conversion module or analog-to-digital converter 404, microprocessor 405, storage module or flash406, wireless charging module 407, and communication module or bluetooth communication module 408. All the modules except the micro-acoustic cavity 401(103) and the acoustic sensor 402(102) are integrated in the central control unit 105.
The sample holder 403 is used for sampling the acoustic signal output by the acoustic sensor 402 (102). The analog-to-digital converter 404 is connected to the sample holder 403 for converting the acoustic signal collected by the sample holder 403 into a digital signal. The microprocessor 405 is connected to the analog-to-digital converter 404, and is configured to receive the digital signal output by the analog-to-digital converter 404 and transmit the digital signal to the flash406 for storage, and simultaneously control other modules on the link through the analog-to-digital converter 404, and simultaneously the microprocessor 405 is also connected to the flash406, the bluetooth communication module 408, and the wireless charging module 407, and is configured to generally control each module inside the central control unit 105. The flash406 is used for receiving and storing the digital signal converted by the analog-to-digital converter 404. The bluetooth communication module 408 is used for transmitting the data stored in the flash406 to the outside. The wireless charging module 407 is configured to receive wireless energy transmitted from a local power source (not shown) to provide operating energy for the wearable fetal sound monitoring apparatus 10.
Here, the operation method and the specific function implementation between the respective modules and structures will be described in detail in the following fetal sound monitoring method.
[ fetal sound monitoring method ]
The flow of the fetal sound monitoring method is described in detail below. In one embodiment, a fetal sound monitoring method includes:
a collecting step of collecting and detecting fetal sound data of a fetus in the abdomen of the pregnant woman by using the fetal sound monitoring device 10, specifically, adhering a fetal sound collecting detector 101 to the abdomen of the pregnant woman by using the ring-shaped bio-gel 100, and collecting heart sound emitted by the fetus in the abdomen of the pregnant woman by using the micro-acoustic cavity 103 and converting the heart sound into an acoustic signal by using the acoustic sensor 102.
A sampling signal transmission step, in which the smart terminal, i.e. the smart phone 14, transmits the sampling signal to the sampling holder 403 of the fetal sound monitoring devices 10 through the wireless network 15 to control the start and stop of data collection of the plurality of fetal sound monitoring devices 10.
Here, the plurality of fetal sound monitoring apparatuses 10 receive and transmit the command transmitted from the smartphone 14 to the microprocessor 405 through the bluetooth communication module 408 in the bluetooth broadcast/advertisement mode, and the microprocessor 405 transmits a sample-and-hold signal to the sample holder 403. When the fetal sound monitoring apparatus 10 is of the split design shown in the first embodiment, the microprocessor 405 sends a sample-and-hold signal to each acoustic sensor 102 through the wires 104 in a unified manner; when the fetal sound monitoring apparatus 10 is of the integral design shown in the second embodiment, a sample-and-hold signal is sent by each microprocessor 405 directly to the lower acoustic sensor 102.
Here, the ambient acoustic sensor 106 collects and detects the ambient acoustic signal present in the external environment in synchronization with the fetal sound monitoring apparatus 10, and specifically, the ambient acoustic sensor 106 and the fetal sound acoustic sensor 102 perform the following steps from the sampling signal transmission step to the storage step described below at the same time, and the operations performed by the acoustic sensor 102 in this process are also applicable to the ambient acoustic sensor 106.
A sampling step of sampling the acoustic signal output by the acoustic sensor 102 after the sampling signal is received by the sample holder 403.
Here, the smartphone 14 sends a start acquisition command at a fixed frequency (e.g., every second), and the fetal sound monitoring apparatus 10 acquires a certain amount of data (e.g., 8 kilo data) at a higher fixed frequency (e.g., 8 khz) after receiving the start acquisition command, stores the acquired data in the flash406, and waits for the next start acquisition command. After sufficient data has been collected (typically for one to two minutes), the fetal sound monitoring device 10 proceeds to the next step.
In the conversion step, the microprocessor 405 sends a conversion command to the analog-to-digital converter 404, and the analog-to-digital converter 404 converts the acoustic signal collected by the sample holder 403 into a digital signal.
In the storage step, the microprocessor 405 sends a storage command to the flash406, and the flash406 reads the digital signals one by one and stores the digital signals.
A transmission feedback step, in which correlation analysis is performed on fetal sound data corresponding to each of the wearable fetal sound collecting detectors 101 in the fetal sound monitoring device 10, and an analysis result is output for feedback and display, specifically, the microprocessor 405 sends an information transmission command to the bluetooth communication module 408, and the bluetooth communication module 408 transmits data stored in the flash406 to the outside for feedback and analyzes and displays the data by the smart phone 14.
The fetal sound monitoring device 10 can transmit the collected fetal heart sound data to the smart phone 14 through the bluetooth communication module 408, and certainly can also transmit the data to the data center 11 through the wireless network 15.
When the fetal sound monitoring device 10 transmits data to the smart phone 14, the smart phone 14 performs correlation analysis on data corresponding to each of the wearable fetal sound collecting detectors 101, displays and stores the data and analysis results, outputs the data and analysis results to the data center 11 through the wireless network 15, and feeds back the data and the updated analysis results to the smart phone 14 of the user side or other ends after the data center 11 performs classification filing and deep data mining. Of course, the smart phone 14 may also transmit the data information and the analysis result to other terminals and the data center 11 through the wireless network 15, and update the data and the updated analysis result to each terminal after the data center 11 performs classification filing and deep data mining.
When the fetal sound monitoring device 10 transmits data to the data center 11, the data center 11 receives and performs correlation analysis on data corresponding to each of the wearable fetal sound collecting detectors 101, and feeds back the data and the analysis results to the user-side smart phone 14 or other terminals after performing classification filing and deep data mining on the analysis results.
Wherein, in the correlation analysis process, still include the environmental sound analysis step, analyze the external environment signal that environmental acoustic sensor 106 detected promptly to carry out the noise elimination to wearable fetal sound monitoring device's fetal sound data, offset the environmental noise in the foetus data of gathering, ensure better signal-to-noise ratio.
The analysis method adopts fast Fourier transform, extracts relevant frequency bands aiming at the mother heartbeat and the fetus heartbeat in an analysis result, and finds out the maximum value of the two frequency bands in the multipath signals as the monitoring values of the mother heartbeat and the fetus heartbeat. It is worth noting that the difference between the heart beats of the mother and the fetus is very large, the heart beats of the mother being typically 60 to 90 beats per minute, and the heart beats of the fetus being typically higher than 140 beats per minute. Due to the large difference in signal frequency, the maternal and fetal heartbeats are relatively easily identifiable in a signal with sufficient fetal heart beat intensity.
Here, in the transmitting feedback step, the user of the smartphone 14 may specify the scope of the feedback client, e.g., may specify a husband, mother, etc. that is fed back to the pregnant woman.
In the above, the general concept of the present invention has been described, but it should be noted that the sequence of the steps is not fixed, and the sequence of the steps can be properly changed according to specific needs within the scope not departing from the spirit of the present invention, and the changed flow still belongs to the protection scope of the present invention.
[ wearable fetal sound monitoring underwear ]
Fig. 5 is a schematic view of an embodiment of a specific application of the wearable fetal sound monitoring apparatus of the present invention. As shown in fig. 5, the wearable fetal sound monitoring underwear comprises a central control unit 105, an ambient acoustic sensor 106, and a collection detector 101. In the present embodiment, only one central control unit 105 is provided, but of course, a plurality of central control units 105 may be provided. An ambient acoustic sensor 106 is provided on the central control unit 105 to collect acoustic signals of the external environment. The 9 collecting detectors 101 are disposed outside the central control unit 105, and the 9 collecting detectors 101 are disposed in a matrix arrangement, but the collecting detectors 101 may be in other numbers and may be disposed in other shape arrangements, wherein the central control unit 105 and the 9 collecting detectors 101 are connected by the wires 104.
The wearable fetal sound monitoring undergarment of the present embodiment is an example of practical use of the fetal sound monitoring apparatus 10 of the first embodiment, and performs the above-described fetal sound monitoring method together with other devices in the fetal sound monitoring system to determine the fetal sound monitoring result.
The wearable fetal sound monitoring underwear adopts a plurality of sampling and holding circuits, one trigger signal and a plurality of paths of sampling and holding work synchronously, and the multi-path synchronism of the acquisition is effectively ensured.
While various concepts have been described in detail, it will be appreciated by those skilled in the art that various modifications and alternatives to those concepts may be developed in light of the overall teachings of the disclosure.
Furthermore, while the invention is described in the context of functional modules and illustrated in the form of functional block diagrams, it should be understood that, unless otherwise stated to the contrary, one or more of the described functions and/or features may be integrated into a single physical device and/or software module or one or more functions and/or features may be implemented in a separate physical device or software module. It will also be appreciated that a detailed discussion of the actual implementation of each module is not necessary for an understanding of the present invention. Rather, the actual implementation of the various functional modules in the system disclosed herein will be understood within the ordinary skill of an engineer, given the nature, function, and inter-relationships of the modules. Accordingly, those skilled in the art can, using ordinary skill, practice the invention as set forth in the claims without undue experimentation. It is also to be understood that the specific concepts disclosed are merely illustrative of and not intended to limit the scope of the invention, which is defined by the appended claims and their full scope of equivalents.
Claims (14)
1. A wearable fetal sound collection detector, comprising:
the attaching part is used for attaching the wearable fetal sound collecting detector to the abdomen of the pregnant woman;
a fetal sound collecting part for collecting the fetal heart sound in the abdomen of the pregnant woman;
and the fetal sound detection part is used for detecting the heart sound collected by the fetal sound collection part and converting the heart sound into an acoustic signal.
2. The wearable fetal sound collection detector of claim 1,
the fetal sound collecting part is a micro acoustic cavity and is provided with a fetal sound collecting port facing the opening of the abdomen of the pregnant woman;
the attaching part is bio-gel avoiding the fetal sound collecting port.
3. A wearable fetal sound monitoring device, comprising:
at least one wearable fetal sound collection detector of claim 1; and
and the at least one central control unit is used for sampling, converting and outputting the acoustic signals output by the wearable fetal sound collection detector.
4. The wearable fetal sound monitoring apparatus of claim 3,
the wearable fetal sound collecting detector is arranged in a matrix, and the central control unit is used for controlling the fetal sound collecting detector to be in a wearable state;
the wearable fetal sound collecting detectors synchronously detect the acoustic signals and respectively transmit the acoustic signals to the central control unit in a wired or wireless mode.
5. The wearable fetal sound monitoring apparatus of claim 3,
the device comprises a plurality of wearable fetal sound collecting detectors arranged in a matrix manner, and a plurality of central control units integrated with the wearable fetal sound collecting detectors respectively;
the wearable fetal sound collecting detectors synchronously detect the acoustic signals and respectively transmit the acoustic signals to the corresponding central control units in a wired or wireless mode.
6. The wearable fetal sound monitoring apparatus of claim 4 or 5, wherein the central control unit comprises:
the sampling module is used for sampling the acoustic signals output by the fetal sound collecting detector;
the conversion module is used for converting the acoustic signals collected by the sampling module into digital signals;
the storage module is used for storing the digital signal;
the communication module is used for transmitting the digital signals stored by the storage module to the outside;
a microprocessor for controlling the modules within the central control unit as a whole.
7. The wearable fetal sound monitoring apparatus of claim 4 or 5, further comprising:
at least one ambient sound detection unit, which is provided corresponding to the at least one wearable fetal sound collection detector, and synchronously collects and detects ambient acoustic signals existing in the external environment;
the environment acoustic signal is transmitted to the central control unit, converted into a digital signal by the conversion module and stored in the storage module.
8. The wearable fetal sound monitoring apparatus of claim 3, further comprising: a wireless charging module for receiving wireless energy transmitted from a local power source to provide operating energy for the wearable fetal sound monitoring device.
9. A fetal sound monitoring system, comprising:
the wearable fetal sound monitoring apparatus of claim 4 or 5;
the intelligent terminal receives the data transmitted by the wearable fetal sound monitoring device, performs correlation analysis on the data corresponding to the wearable fetal sound collecting detectors and outputs an analysis result;
and the data center is used for receiving and storing the analysis result transmitted by the intelligent terminal, and performing classification filing and deep data mining.
10. A fetal sound monitoring system, comprising:
the wearable fetal sound monitoring apparatus of claim 4 or 5;
the data center is used for receiving the data transmitted by the wearable fetal sound monitoring device, performing correlation analysis on the data corresponding to the wearable fetal sound collecting detectors, and performing classification filing and deep data mining on the analysis result;
and the intelligent terminal receives and displays the analysis result from the data center.
11. A fetal sound monitoring method, comprising:
a step of collecting and detecting fetal sound data of a fetus in the abdomen of the pregnant woman using the wearable fetal sound monitoring device of any one of claims 4 or 5;
and performing correlation analysis on fetal sound data corresponding to a plurality of wearable fetal sound collecting detectors in the wearable fetal sound monitoring device, and outputting an analysis result.
12. The fetal sound monitoring method of claim 11, further comprising: a step of performing noise elimination on the fetal sound data of the wearable fetal sound monitoring apparatus by using the ambient sound detection unit according to claim 7 to collect and detect an ambient acoustic signal present in the external environment in synchronization with the wearable fetal sound monitoring apparatus.
13. The fetal sound monitoring method of claim 11, further comprising: and the intelligent terminal transmits a sampling signal to the sampling module of the fetal sound monitoring device so as to control the start and stop of data acquisition of the fetal sound monitoring device.
14. The fetal sound monitoring method of claim 13, further comprising: and converting and storing the collected and detected fetal sound data.
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| CN201910019925.3A CN111419270A (en) | 2019-01-09 | 2019-01-09 | Wearable fetal sound collection detector, monitoring device, system and method |
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| CN201910019925.3A CN111419270A (en) | 2019-01-09 | 2019-01-09 | Wearable fetal sound collection detector, monitoring device, system and method |
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