CN107397535B - Comprehensive physical sign monitoring device and system for pregnant woman - Google Patents
Comprehensive physical sign monitoring device and system for pregnant womanDownload PDFInfo
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Abstract
Description
Technical Field
The application relates to a comprehensive physical sign monitoring device and system for pregnant women, and belongs to the field of medical instruments.
Background
Fetal heart monitoring is one of the most important items for prenatal examination, and can reflect the growth and health of a fetus. Once the fetal heart is found to be abnormal, necessary rescue measures should be taken immediately. Fetal heart monitoring has important significance for reducing complications and sequelae of the newborn, defect rate of the newborn and death rate of the perinatal infants. Fetal movement number is an important, effective, reliable reflection of the fetus' well being. A sudden reduction in fetal movement may indicate a potential problem requiring further assessment of the condition of the fetus.
In the prior art, fetal heart monitoring is carried out by periodically going to a hospital, and a pregnant woman needs to register, reserve and queue to the hospital every time, which brings great inconvenience to the life of the pregnant woman; fetal movements are automatically counted and tracked by the pregnant woman. Therefore, the prior art lacks a device capable of monitoring the comprehensive physical signs of the pregnant woman.
Disclosure of Invention
According to one aspect of the application, the comprehensive physical sign monitoring device for the pregnant woman is provided, the device does not need a professional person to operate in a professional mode, can accurately monitor the comprehensive physical signs of the pregnant woman such as fetal heart monitoring and fetal movement detection for a long time and continuously, and is suitable for real-time continuous monitoring of the pregnant woman in life.
A pregnant woman comprehensive physical sign monitoring device, comprising: the array type probe assembly comprises an array type probe assembly, a control device and a fixing device;
the array type probe assembly comprises at least three probes, each probe comprises a fetal movement sensor and a fetal heart sensor, the fetal movement sensor is used for collecting linear acceleration values, the fetal heart sensor is used for collecting vibration signals, and the array type probe assembly is arranged on the fixing device;
the fixing device is used for fixing the array type probe assembly with a person to be measured;
the control device is used for obtaining a fetal movement signal and a fetal movement position according to the linear acceleration values collected by the at least three probes, and obtaining a fetal heart signal and a fetal heart position according to the vibration signals collected by the at least three probes.
Preferably, the control device includes:
the fetal movement signal module is used for randomly selecting two probes from the at least three probes as a combination, calculating the difference value of linear acceleration values acquired by the two probes in one combination, comparing the difference value with a preset threshold value, and judging to obtain a fetal movement signal if the difference value of the at least two combinations in all the combination modes is greater than or equal to the preset threshold value;
the fetal movement position module is used for determining the position of the probe with the maximum acquired linear acceleration value as a fetal movement position;
the fetal heart filtering module is used for filtering a noise signal in the vibration signal according to a preset frequency characteristic and a periodicity characteristic of a fetal heart signal to obtain a preprocessing signal;
the fetal heart cross-correlation module is used for calculating the time difference of the fetal heart signals reaching the two probes according to the preprocessed signals by adopting a weighted phase transformation generalized cross-correlation algorithm;
the fetal heart position module is used for calculating the fetal heart position according to the time difference and the preset propagation speed of the fetal heart signal;
and the fetal heart signal module is used for obtaining a fetal heart signal according to the vibration signal acquired by the probe at the fetal heart position.
Preferably, the control device further includes: a fetal position module;
the fetal position module is used for determining a fetal position according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position;
or the fetal position module is used for identifying the fetal movement position with the highest frequency as a leg position according to the fetal movement position obtained by the fetal movement position module, and determining the fetal position according to the corresponding relation between the preset leg position and the fetal position and the identified leg position;
or the fetal position module is used for obtaining a first result according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position module, regarding the fetal position with the highest frequency as a leg position according to the fetal position obtained by the fetal position module, obtaining a second result according to the preset corresponding relation between the leg position and the fetal position and the determined leg position, determining the first result or the second result as the fetal position under the condition that the first result is consistent with the second result, and determining that the fetal position is abnormal under the condition that the first result is inconsistent with the second result and the first result is not in the head position with the second result.
Preferably, the array type probe assembly comprises three probes, wherein the three probes form a circular array and are respectively arranged right below, on the left above and on the right above the navel of the person to be tested.
Preferably, the integrated physical sign monitoring device for pregnant women further comprises: a body temperature sensor and/or an ambient temperature sensor and/or a step-counting sensor;
the control device further includes: and the basal metabolic rate module is used for calculating the basal metabolic rate by adopting a preset basal metabolic rate algorithm according to the body temperature acquired by the body temperature sensor and/or the environment temperature acquired by the environment temperature sensor and/or the step number acquired by the step counting sensor and/or personal information input by a person to be measured.
Preferably, the pregnant woman comprehensive physical sign monitoring device further comprises:
the antenatal training device is used for playing antenatal training music.
Preferably, the fixing means comprises: a back waistband, an upper abdominal supporting belt, a lower abdominal supporting belt and a hasp;
the upper abdominal supporting belt, the lower abdominal supporting belt and the rear waistband are connected through the buckles;
the array type probe assembly is arranged on the lower abdominal supporting belt;
the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device are arranged on the upper support abdominal belt.
Preferably, a radiation-proof bellyband is arranged between the upper abdominal supporting belt and the lower abdominal supporting belt.
Preferably, the pregnant woman comprehensive physical sign monitoring device further comprises: the battery supplies power to the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device;
the battery is a dry battery or a lithium battery and is arranged on the fixing device; or the battery is a flexible battery and is embedded into the fixing device.
According to yet another aspect of the present application, there is provided a maternal monitoring system, comprising: a monitoring device and a mobile terminal;
wherein, monitor device includes: the array type probe assembly comprises an array type probe assembly, a fixing device and a first communication unit;
the array type probe assembly comprises at least three probes, each probe comprises a fetal movement sensor and a fetal heart sensor, the fetal movement sensor is used for collecting linear acceleration values, the fetal heart sensor is used for collecting vibration signals, and the array type probe assembly is arranged on the fixing device;
the fixing device is used for fixing the array type probe assembly with a person to be measured;
the first communication unit is used for sending the linear acceleration values and the vibration signals collected by the at least three probes to the mobile terminal;
the mobile terminal comprises a second communication unit, a control device and a display device;
the second communication unit is used for receiving the linear acceleration values and the vibration signals collected by the at least three probes of the monitoring device;
the control device is used for obtaining a fetal movement signal and a fetal movement position according to the linear acceleration values collected by the at least three probes, and obtaining a fetal heart signal and a fetal heart position according to the vibration signals collected by the at least three probes;
the display device is used for displaying the fetal movement signal, the fetal movement position, the fetal heart signal and the fetal heart position.
Preferably, the control device includes:
the fetal movement signal module is used for randomly selecting two probes from the at least three probes as a combination, calculating the difference value of linear acceleration values acquired by the two probes in one combination, comparing the difference value with a preset threshold value, and judging to obtain a fetal movement signal if the difference value of the at least two combinations in all the combination modes is greater than or equal to the preset threshold value;
the fetal movement position module is used for determining the position of the probe with the maximum acquired linear acceleration value as a fetal movement position;
the fetal heart filtering module is used for filtering a noise signal in the vibration signal according to a preset frequency characteristic and a periodicity characteristic of a fetal heart signal to obtain a preprocessing signal;
the fetal heart cross-correlation module is used for calculating the time difference of the fetal heart signals reaching the two probes according to the preprocessed signals by adopting a weighted phase transformation generalized cross-correlation algorithm;
the fetal heart position module is used for calculating the fetal heart position according to the time difference and the preset propagation speed of the fetal heart signal;
and the fetal heart signal module is used for obtaining a fetal heart signal according to the vibration signal acquired by the probe at the fetal heart position.
Preferably, the control device further includes: a fetal position module;
the fetal position module is used for determining a fetal position according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position;
or the fetal position module is used for identifying the fetal movement position with the highest frequency as a leg position according to the fetal movement position obtained by the fetal movement position module, and determining the fetal position according to the corresponding relation between the preset leg position and the fetal position and the identified leg position;
or the fetal position module is used for obtaining a first result according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position module, regarding the fetal position with the highest frequency as a leg position according to the fetal position obtained by the fetal position module, obtaining a second result according to the preset corresponding relation between the leg position and the fetal position and the determined leg position, determining the first result or the second result as the fetal position under the condition that the first result is consistent with the second result, and determining that the fetal position is abnormal under the condition that the first result is inconsistent with the second result and the first result is not in the head position with the second result.
Preferably, the array type probe assembly comprises three probes, wherein the three probes form a circular array and are respectively arranged right below, on the left above and on the right above the navel of the person to be tested.
Preferably, the monitoring device further comprises: a body temperature sensor and/or an ambient temperature sensor and/or a step-counting sensor;
the first communication unit is further used for sending the body temperature acquired by the body temperature sensor, the environment temperature acquired by the environment temperature sensor and the step counting number acquired by the step counting sensor to the mobile terminal;
the second communication unit is also used for receiving the body temperature acquired by the body temperature sensor, the environment temperature acquired by the environment temperature sensor and the step counting number acquired by the step counting sensor from the monitoring device;
the control device further includes: and the basal metabolic rate module is used for calculating the basal metabolic rate by adopting a preset basal metabolic rate algorithm according to the body temperature acquired by the body temperature sensor and/or the environment temperature acquired by the environment temperature sensor and/or the step number acquired by the step counting sensor and/or personal information input by a person to be measured.
Preferably, the monitoring device further comprises:
the antenatal training device is used for playing antenatal training music.
Preferably, the fixing means comprises: a back waistband, an upper abdominal supporting belt, a lower abdominal supporting belt and a hasp;
the upper abdominal supporting belt, the lower abdominal supporting belt and the rear waistband are connected through the buckles;
the array type probe assembly is arranged on the lower abdominal supporting belt;
the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device are arranged on the upper support abdominal belt.
Preferably, a radiation-proof bellyband is arranged between the upper abdominal supporting belt and the lower abdominal supporting belt.
Preferably, the monitoring device further comprises: the battery supplies power to the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device;
the battery is a dry battery or a lithium battery and is arranged on the fixing device; or the battery is a flexible battery and is embedded into the fixing device.
Preferably, the integrated physical sign monitoring system for pregnant women further comprises: a server;
the server is in wireless connection with the mobile terminal;
the mobile terminal is further used for sending one or more of the fetal movement signal, the fetal movement position, the fetal heart signal, the fetal heart position, the fetal position, the basal metabolic rate, the body temperature, the environmental temperature, the step count and/or personal information input by the person to be tested to the server;
the server is further configured to feed back a health suggestion to the mobile terminal according to one or more of the fetal movement signal, the fetal movement position, the fetal heart signal, the fetal heart position, the fetal position, the basal metabolic rate, the body temperature, the environmental temperature, the step count and/or personal information input by the person to be tested, and update one or more of the preset threshold, the preset frequency characteristic and the periodic characteristic of the fetal heart signal, the preset propagation speed of the fetal heart signal, the preset correspondence between the fetal heart position and the fetal position, the preset correspondence between the leg position and the fetal position, the preset basal metabolic rate algorithm, and fetal music in the mobile terminal.
The beneficial effects that this application can produce include:
the array type probe assembly is adopted, so that fetal movement signals, fetal movement positions, fetal heart positions and fetal heart signals can be sensitively and accurately collected, and therefore, a professional person is not required to operate the array type probe assembly in a professional mode, and comprehensive physical signs of pregnant women such as fetal heart, fetal movement and the like can be monitored. And moreover, the probe is fixed on the body of the person to be detected through the fixing device, the use is convenient, the monitoring can be carried out only by wearing the probe by the person to be detected, and the device is suitable for real-time continuous monitoring of the pregnant woman in life.
Furthermore, the fetal position is obtained according to the collected fetal movement position and/or fetal movement frequency, and the fetal position can be monitored in real time.
Furthermore, a body temperature sensor and/or an environment temperature sensor and/or a step counting sensor and the like are adopted for detection, the basal metabolic rate is calculated according to a preset algorithm, and the basal metabolic rate can be monitored in real time.
Further, antenatal training music is played through the antenatal training device. And can protect the fetus through the radiation-proof bellyband.
Further, the fetal heart position is continuously and periodically calculated according to the vibration signals collected by the probe, and the fetal heart signals are obtained according to the vibration signals collected by the probe at the fetal heart position. Therefore, if the fetal heart position changes due to fetal movement in the monitoring process, a new fetal heart position can be detected in time and fetal heart signals can be acquired from the new fetal heart position.
Further, the noise signal in the vibration signal is filtered according to the frequency characteristic and the periodicity characteristic of the preset fetal heart signal, so that irrelevant signals can be filtered, and the detection accuracy is further enhanced, wherein the irrelevant signals are as follows: maternal heartbeat, maternal intra-body noise, other external noise signals, etc. In addition, by adopting a weighted phase transformation generalized cross-correlation algorithm, frequency components with high signal-to-noise ratio in the vibration signals corresponding to the tire center are further strengthened, so that the influence of noise is further suppressed, and the detection accuracy is further enhanced.
Further, by arranging the accelerometer in the probe, the position change of the probe caused by the movement of the pregnant woman in the monitoring process can be detected, and the detection accuracy is further enhanced.
Drawings
Fig. 1 is a schematic structural view of a comprehensive physical sign monitoring device for pregnant women according to a first embodiment of the invention;
fig. 2 is a schematic structural diagram of a control device in the integrated physical sign monitoring device for pregnant women according to a second embodiment of the invention;
fig. 3 is a schematic structural view of a comprehensive physical sign monitoring device for pregnant women according to a third embodiment of the invention:
fig. 4 is a schematic structural diagram of a comprehensive physical sign monitoring system for pregnant women according to a fourth embodiment of the invention.
Detailed Description
The present application will be described in detail with reference to examples, but the present application is not limited to these examples.
Fig. 1 is a schematic structural view of a comprehensive physical sign monitoring device for pregnant women according to an embodiment of the invention. As shown in fig. 1, the integrated physical sign monitoring device for pregnant women comprises: array probe subassembly, controlling means 2 and fixingdevice 3.
Wherein, array probe subassembly includes at least threeprobe 11, everyprobe 11 includes fetal movement sensor and child heart sensor, fetal movement sensor is used for gathering linear acceleration value, child heart sensor is used for gathering vibration signal, array probe subassembly sets up on fixingdevice 3.
The fixingdevice 3 is used for fixing the array type probe assembly and a person to be measured.
Thecontrol device 2 is used for obtaining a fetal movement signal and a fetal movement position according to the linear acceleration values collected by the at least threeprobes 11, and obtaining a fetal heart signal and a fetal heart position according to the vibration signals collected by the at least threeprobes 11.
In the first embodiment of the invention, the array type probe assembly is adopted, so that fetal movement signals, fetal movement positions, fetal heart positions and fetal heart signals can be sensitively and accurately acquired, and comprehensive physical signs of pregnant women such as fetal heart, fetal movement and the like can be monitored without professional operation. And moreover, the probe is fixed on the body of the person to be detected through the fixing device, the use is convenient, the monitoring can be carried out only by wearing the probe by the person to be detected, and the device is suitable for real-time continuous monitoring of the pregnant woman in life.
Preferably, thecontrol device 2 continuously and periodically calculates the fetal heart position according to the vibration signal acquired by theprobe 11, and obtains the fetal heart signal according to the vibration signal acquired by theprobe 11 at the fetal heart position. Therefore, if the fetal heart position changes due to fetal movement during the monitoring process, thecontrol device 2 can timely detect a new fetal heart position and acquire a fetal heart signal from the new fetal heart position.
Fig. 2 is a schematic structural diagram of a control device in the pregnant woman comprehensive physical sign monitoring device according to a second embodiment of the invention. The structure of the pregnant woman comprehensive physical sign monitoring device in the second embodiment of the invention is the same as that of the pregnant woman comprehensive physical sign monitoring device in the first embodiment of the invention, and thecontrol device 2 in the pregnant woman comprehensive physical sign monitoring device is specifically explained in the second embodiment of the invention. As shown in fig. 2, thecontrol device 2 of the integrated physical signs monitoring device for pregnant women at least comprises: the fetalmovement signal module 21, the fetalmovement position module 22, the fetalheart filtering module 23, the fetal heartmutual correlation module 24, the fetalheart position module 25 and the fetalheart signal module 26.
The fetalmovement signal module 21 is configured to select two probes from the at least three probes as a combination, calculate a difference between linear acceleration values acquired by the two probes in the combination, compare the difference with a preset threshold, and determine that a fetal movement signal is obtained if the difference between the at least two combinations is greater than or equal to the preset threshold in all the combination modes;
the fetalmovement position module 22 is used for determining the position of the probe with the maximum acquired linear acceleration value as a fetal movement position;
the fetalheart filtering module 23 is configured to filter a noise signal in the vibration signal according to a preset frequency characteristic and a preset periodicity characteristic of a fetal heart signal to obtain a preprocessed signal;
the fetalheart cross-correlation module 24 is used for calculating the time difference of the fetal heart signals reaching the two probes according to the preprocessed signals by adopting a weighted phase transformation generalized cross-correlation algorithm;
a fetalheart position module 25, configured to calculate a fetal heart position according to the time difference and a preset propagation speed of the fetal heart signal;
and the fetalheart signal module 26 is used for obtaining a fetal heart signal according to the vibration signal acquired by the probe at the fetal heart position.
Further, the above-mentioned fetal heart correlation module includes: a target submodule and a calculation submodule.
The target submodule is used for selecting at least one group of target probes from the at least three probes, and the group of target probes comprises two target probes.
The calculation submodule is used for executing the following processing aiming at each group of target probes:
transforming the preprocessed signals of the two target probes to a frequency domain to respectively obtain two frequency domain preprocessed signals; weighting the cross power spectrums of the two frequency domain preprocessed signals, strengthening frequency components with high signal-to-noise ratio, and obtaining frequency domain weighted signals; inversely transforming the frequency domain weighted signal to a time domain to obtain a generalized cross-correlation function; and acquiring the time corresponding to the peak value of the generalized cross-correlation function as the time difference of the fetal heart signal reaching the two target probes.
The above processing of the computation submodule is formulated as:
Rx1x2(t)＝Ψ12(ω)Gx1x2(ω)e-jωπdω
wherein R isx1x2(t) represents the generalized cross-correlation function, x1 and x2 represent the preprocessed signals for the two target probes, respectively, Gx1x2(ω) is the cross-power spectrum of x1 and x2, Ψ12(ω) is the generalized cross-correlation weighting function.
Further, the target sub-module is specifically configured to select at least two target probes from the at least three probes, arbitrarily select two target probes from the at least two target probes to form a group, select all combination modes, and use each combination mode as a group of target probes. Or the target submodule is specifically configured to select two probes from the at least three probes to form a group, select a preset number of combination modes, and use each combination mode as a group of target probes. Or the target submodule is specifically configured to select two probes from the at least three probes to form a group, select all combination modes, and use each combination mode as a group of target probes.
On the basis of the above technical solution, further, thecontrol device 2 in the integrated physical sign monitoring device for pregnant women may further include: afetal position module 27.
Thefetal position module 27 is configured to determine a fetal position according to a preset correspondence between a fetal position and the fetal position obtained from the fetal position.
Or, thetire position module 27 is configured to identify the tire movement position with the highest frequency as the leg position according to the tire movement position obtained by the tire movement position module, and determine the tire position according to the preset corresponding relationship between the leg position and the tire position and the identified leg position.
Or, thefetal position module 27 is configured to obtain a first result according to a preset correspondence between the fetal position and the fetal position obtained from the fetal position, identify the fetal position with the highest frequency as the leg position according to the fetal position obtained from the fetal position module, obtain a second result according to the preset correspondence between the leg position and the fetal position and the identified leg position, determine the first result or the second result as the fetal position if the first result is consistent with the second result, and determine that the fetal position is abnormal if the first result is inconsistent with the second result and neither the first result nor the second result is in the head position.
On the basis of the above technical scheme, further, the comprehensive physical sign monitoring device for pregnant women can further comprise: a body temperature sensor and/or an ambient temperature sensor and/or a step-counting sensor.
Thecontrol device 2 may further include: and the basal metabolic rate module is used for calculating the basal metabolic rate by adopting a preset basal metabolic rate algorithm according to the body temperature acquired by the body temperature sensor and/or the environment temperature acquired by the environment temperature sensor and/or the step number acquired by the step counting sensor and/or personal information input by a person to be measured. The skilled person in the art may design the basic metabolic rate algorithm according to the medical principle of the basic metabolic rate, may adopt any existing basic metabolic rate algorithm, may optimize the existing basic metabolic rate algorithm, or redesign a more reasonable basic metabolic rate algorithm, which is not limited in this application.
In one specific implementation, the basal metabolic rate algorithm is, for example: basal metabolic rate is body weight-affecting factor × body weight × (1+ (25-age) × age-affecting factor) × (1+ pregnant woman's month-age × 0.04) × (1+ (body temperature-36.5) × body temperature-affecting factor) × (1+ (number of steps-4000) × exercise amount-affecting factor) × (1- (ambient temperature-25) × environmental-affecting factor).
In the second embodiment of the invention, the array probe assembly is adopted, so that fetal movement signals, fetal movement positions, fetal heart positions and fetal heart signals can be sensitively and accurately acquired, and comprehensive physical signs of pregnant women such as fetal heart, fetal movement and the like can be monitored without professional operation. And moreover, the probe is fixed on the body of the person to be detected through the fixing device, the use is convenient, the monitoring can be carried out only by wearing the probe by the person to be detected, and the device is suitable for real-time continuous monitoring of the pregnant woman in life.
Further, when detecting fetal movement, the pregnant woman's own movement and fetal movement are distinguished by the magnitude of the difference in signals between the plurality of probes. Meanwhile, fetal movement position positioning is achieved through the multiple probes. Thereby enabling accurate detection of fetal movement.
Furthermore, the fetal position is obtained according to the collected fetal movement position and/or fetal movement frequency, and the fetal position can be monitored in real time. Thereby providing convenient and safe family exercise correction timely guidance according to the fetal position.
Furthermore, a body temperature sensor and/or an environment temperature sensor and/or a step counting sensor and the like are adopted for detection, the basal metabolic rate is calculated according to a preset algorithm, and the basal metabolic rate can be monitored in real time. Furthermore, the periodic nutrient intake can be recommended according to the basal metabolic rate of the pregnant women, and reasonable diet collocation and exercise scheme can be designed.
Further, the fetal heart filtering module filters the noise signal in the vibration signal according to the preset frequency characteristic and the periodicity characteristic of the fetal heart signal, so that irrelevant signals can be filtered, and the detection accuracy is further enhanced, wherein the irrelevant signals are, for example: maternal heartbeat, maternal intra-body noise, other external noise signals, etc.
Furthermore, the tire center cross-correlation module further strengthens frequency components with high signal-to-noise ratio in the vibration signals corresponding to the tire center by adopting a weighted phase transformation generalized cross-correlation algorithm, thereby further suppressing the influence of noise and further enhancing the detection accuracy.
Fig. 3 is a schematic structural view of a comprehensive physical sign monitoring device for pregnant women according to a third embodiment of the invention. As a specific implementation manner, the comprehensive physical sign monitoring device for pregnant women in the third embodiment of the present invention is based on the above components and functions of the comprehensive physical sign monitoring device for pregnant women in the first and second embodiments of the present invention, and further, in the third embodiment of the present invention, the comprehensive physical sign monitoring device for pregnant women further includes a prenatal education device. The antenatal training device is used for playing antenatal training music.
Further, in the third embodiment of the present invention, the fixing device includes: aback waistband 31, an upperabdominal belt 32, a lowerabdominal belt 33 and abuckle 34. The upperabdominal belt 32, the lowerabdominal belt 33 and theback waistband 31 are connected through thebuckles 34, wherein the specific connection mode is various detachable connections, so that the upperabdominal belt 32, the lowerabdominal belt 33 and theback waistband 31 can be connected or separated. The array type probe assembly is arranged on the lower abdomen supporting belt. The body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device are arranged on the upper support abdominal belt. In one implementation, the body temperature sensor, the ambient temperature sensor, the step-counting sensor, and the prenatal education device form acomprehensive assembly 35. Through the design of the fixing device, the pregnant woman can be helped to support the deviated gravity center of the part, and the aching pain of the waist and the back is relieved.
Further, in the third embodiment of the present invention, a radiation-proof bellyband 36 is provided between the upper abdominal belt and the lower abdominal belt. The radiation-proof bellyband 36 completely covers the middle area between the upper abdominal supporting belt and the lower abdominal supporting belt.
Further, in the third embodiment of the present invention, in a specific implementation manner, the number of the body temperature sensor, the number of the ambient temperature sensor, the number of the step counting sensor and the number of the antenatal training devices are all 2, and the body temperature sensor, the ambient temperature sensor, the step counting sensor and the number of the antenatal training devices are symmetrically arranged on the left side and the right side of the waist of the person to be tested.
Further, in the third embodiment of the present invention, the monitoring device for monitoring the comprehensive physical signs of the pregnant woman further includes: a battery. The battery supplies power for the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device. The battery is a dry battery or a lithium battery and is arranged on the fixing device; or the battery is a flexible battery and is embedded into the fixing device.
In the third embodiment of the invention, on the basis of achieving the technical effects of the first and second embodiments of the invention, antenatal training music is further played through an antenatal training device, and a fetus can be protected through the radiation-proof bellyband.
On the basis of the technical solutions of the first embodiment, the second embodiment and the third embodiment of the present invention, in a specific implementation manner, the array probe assembly includes three probes, and the three probes form a circular array and are respectively disposed right below, on the left above, and on the right above the navel of the person to be measured. Wherein, the circular array is adopted, and the possible range of the fetal heart can be covered as much as possible. By adopting the three probes, the position of the fetal heart can be accurately determined, and the cost can be effectively controlled. One probe is arranged right below the navel and is close to the most possible fetal heart position in the early pregnancy, so that a strong fetal heart signal can be acquired. The distances among the three probes need to be controlled in a proper interval, the distances are too large and are far away from the position of the fetal heart, so that the acquired signals are weak, and the positioning accuracy of the fetal heart is reduced due to the too small distances. In one embodiment, the three probes are preferably spaced between 6 and 10 cm apart.
On the basis of the above technical solutions of the first embodiment, the second embodiment and the third embodiment of the present invention, in a specific implementation manner, each probe in the array probe assembly is connected to the control device through a physical connection line. In order to reduce transmission interference, a Pulse Density Modulation (PDM) format is adopted when the probe transmits a vibration signal corresponding to the fetal heart signal to the control device, and a Serial Peripheral Interface (SPI) format is adopted for the fetal movement signal. In order to accurately acquire the time difference of the fetal heart signals arriving at different probes, the PDM clocks of different probes must be synchronized, the signals triggering acquisition must be synchronized, and the data needs to be transmitted independently. In addition, in order to reduce the number of connecting wires, different fetal movement sensors are connected with the battery and the control module by adopting a star-shaped SPI bus structure, and different probes are selected by SPI selection signals respectively during data acquisition.
On the basis of the above technical solutions of the first embodiment, the second embodiment and the third embodiment of the present invention, in a specific implementation manner, the probe further includes an accelerometer. The accelerometer is used for measuring the linear acceleration of the probe. The control device is also used for judging whether the probe is shifted or not according to the linear acceleration of the probe. Therefore, if the position of the probe changes due to the movement of the pregnant woman in the monitoring process, the control device can detect the position change of the probe according to the linear acceleration of the probe measured by the accelerometer, for example, the control device can detect the change of the relative value of the accelerometer in different probes so as to detect the position change of the probe, and therefore by adopting the comprehensive physical sign monitoring device for the pregnant woman, the influence of the change of the probe on the continuous monitoring of the fetal heart can be corrected through repositioning.
On the basis of the above technical solutions of the first embodiment, the second embodiment and the third embodiment of the present invention, in a specific implementation manner, the fetal heart sensor may adopt a microphone, or the fetal heart sensor may also adopt a special device, for example, a vibration sensor for a fetal heart signal frequency band.
Based on the above technical solutions of the first embodiment, the second embodiment and the third embodiment of the present invention, in a specific implementation manner, the buckle is located at the right side of the waist of the person to be measured, and the battery and the control device are located at the left side of the waist of the person to be measured. Or, in another specific implementation mode, the buckle is positioned on the left side of the waist of the person to be measured, and the battery and the control device are positioned on the right side of the waist of the person to be measured.
Fig. 4 is a schematic structural diagram of a comprehensive physical sign monitoring system for pregnant women according to a fourth embodiment of the invention. In the fourth embodiment of the invention, a pregnant woman comprehensive physical sign monitoring device similar to the first embodiment of the invention is adopted, and the difference is that in the first embodiment of the invention, the pregnant woman comprehensive physical sign monitoring device completes acquisition and calculation, while in the fourth embodiment of the invention, the pregnant woman comprehensive physical sign monitoring device is in wireless connection and is matched with a mobile terminal for use, the pregnant woman comprehensive physical sign monitoring device only completes acquisition, the acquired data is sent to the mobile terminal, and the mobile terminal performs calculation. Specifically, as shown in fig. 4, the system includes: a monitoringdevice 41 and amobile terminal 42.
Wherein, monitor device includes: the array type probe assembly comprises an array type probe assembly, a fixing device and a first communication unit.
Array probe subassembly includes at least three probe, every the probe includes child sensor and child heart sensor, child sensor is used for gathering linear acceleration value, child heart sensor is used for gathering vibration signal, array probe subassembly sets up fixing device is last.
The fixing device is used for fixing the array type probe assembly with a person to be measured.
The first communication unit is used for sending the linear acceleration values and the vibration signals collected by the at least three probes to the mobile terminal.
The mobile terminal comprises a second communication unit, a control device and a display device.
The second communication unit is used for receiving the linear acceleration values and the vibration signals collected by the at least three probes of the monitoring device.
The control device is used for obtaining a fetal movement signal and a fetal movement position according to the linear acceleration values collected by the at least three probes, and obtaining a fetal heart signal and a fetal heart position according to the vibration signals collected by the at least three probes.
The display device is used for displaying the fetal movement signal, the fetal movement position, the fetal heart signal and the fetal heart position.
In the fourth embodiment of the invention, the monitoring device adopts the array type probe assembly and sends the acquired signals to the mobile terminal for calculation, so that fetal movement signals, fetal movement positions, fetal heart positions and fetal heart signals can be acquired sensitively and accurately, and comprehensive physical signs of pregnant women such as fetal heart, fetal movement and the like can be monitored without professional operation. And moreover, the probe is fixed on the body of the person to be detected through the fixing device, the use is convenient, the monitoring can be carried out only by wearing the probe by the person to be detected, and the device is suitable for real-time continuous monitoring of the pregnant woman in life.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the control device includes: the device comprises a fetal movement signal module, a fetal movement position module, a fetal heart filtering module, a fetal heart mutual correlation module, a fetal heart position module and a fetal heart signal module.
The fetal movement signal module is used for randomly selecting two probes from the at least three probes as a combination, calculating the difference value of linear acceleration values acquired by the two probes in the combination, comparing the difference value with a preset threshold value, and judging to obtain a fetal movement signal if the difference value of the at least two combinations in all the combination modes is greater than or equal to the preset threshold value;
the fetal movement position module is used for determining the position of the probe with the maximum acquired linear acceleration value as a fetal movement position;
the fetal heart filtering module is used for filtering a noise signal in the vibration signal according to a preset frequency characteristic and a periodicity characteristic of a fetal heart signal to obtain a preprocessing signal;
the fetal heart cross-correlation module is used for calculating the time difference of the fetal heart signals reaching the two probes according to the preprocessed signals by adopting a weighted phase transformation generalized cross-correlation algorithm;
the fetal heart position module is used for calculating the fetal heart position according to the time difference and the preset propagation speed of the fetal heart signal;
and the fetal heart signal module is used for obtaining a fetal heart signal according to the vibration signal acquired by the probe at the fetal heart position.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the control device further includes: a fetal position module. The fetal position module is used for determining the fetal position according to the corresponding relation between the preset fetal position and the fetal position obtained by the fetal position. Or the fetal position module is used for identifying the fetal movement position with the highest frequency as a leg position according to the fetal movement position obtained by the fetal movement position module, and determining the fetal position according to the preset corresponding relation between the leg position and the fetal position and the identified leg position. Or the fetal position module is used for obtaining a first result according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position module, regarding the fetal position with the highest frequency as a leg position according to the fetal position obtained by the fetal position module, obtaining a second result according to the preset corresponding relation between the leg position and the fetal position and the determined leg position, determining the first result or the second result as the fetal position under the condition that the first result is consistent with the second result, and determining that the fetal position is abnormal under the condition that the first result is inconsistent with the second result and the first result is not in the head position with the second result.
On the basis of the technical scheme of the fourth embodiment of the invention, the array type probe assembly further comprises three probes, wherein the three probes form a circular array and are respectively arranged right below, on the left above and on the right above the navel of the person to be tested.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the monitoring device further includes: a body temperature sensor and/or an ambient temperature sensor and/or a step-counting sensor. The first communication unit is further used for sending the body temperature collected by the body temperature sensor, the environment temperature collected by the environment temperature sensor and the step counting number collected by the step counting sensor to the mobile terminal. The second communication unit is also used for receiving the body temperature collected by the body temperature sensor, the environment temperature collected by the environment temperature sensor and the step counting number collected by the step counting sensor from the monitoring device. The control device further includes: and the basal metabolic rate module is used for calculating the basal metabolic rate by adopting a preset basal metabolic rate algorithm according to the body temperature acquired by the body temperature sensor and/or the environment temperature acquired by the environment temperature sensor and/or the step number acquired by the step counting sensor and/or personal information input by a person to be measured.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the monitoring device further includes: the antenatal training device is used for playing antenatal training music.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the fixing device includes: a back waistband, an upper abdominal supporting belt, a lower abdominal supporting belt and a hasp. The upper abdominal belt, the lower abdominal belt and the back waistband are connected through the buckles. The array type probe assembly is arranged on the lower abdomen supporting belt. The body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device are arranged on the upper support abdominal belt.
On the basis of the technical scheme of the fourth embodiment of the invention, a radiation-proof bellyband is further arranged between the upper abdominal supporting belt and the lower abdominal supporting belt.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the monitoring device further includes: a battery. The battery supplies power for the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device. The battery is a dry battery or a lithium battery and is arranged on the fixing device; or the battery is a flexible battery and is embedded into the fixing device.
On the basis of the above technical solution of the fourth embodiment of the present invention, further, the pregnant woman comprehensive physical sign monitoring system may further include: aserver 43. Theserver 43 is wirelessly connected to themobile terminal 42.
The mobile terminal is further configured to send one or more of the fetal movement signal, the fetal movement position, the fetal heart signal, the fetal heart position, the fetal position, the basal metabolic rate, the body temperature, the environmental temperature, the step count, and/or personal information input by the person to be tested to the server.
The server is further configured to feed back a health suggestion to the mobile terminal according to one or more of the fetal movement signal, the fetal movement position, the fetal heart signal, the fetal heart position, the fetal position, the basal metabolic rate, the body temperature, the environmental temperature, the step count, and/or personal information input by the person to be tested, which are sent by the mobile terminal.
And the server is further configured to update one or more of the preset threshold, the preset frequency characteristic and the periodic characteristic of the fetal heart signal, the preset propagation speed of the fetal heart signal, the preset correspondence between the fetal heart position and the fetal position, the preset correspondence between the leg position and the fetal position, the preset basal metabolic rate algorithm, and fetal education music in the mobile terminal.
Although the present application has been described with reference to a few embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (17)
1. A comprehensive physical sign monitoring device for pregnant women is characterized by comprising an array type probe assembly, a control device and a fixing device;
the array type probe assembly comprises at least three probes, each probe comprises a fetal movement sensor and a fetal heart sensor, the fetal movement sensor is used for collecting linear acceleration values, the fetal heart sensor is used for collecting vibration signals, and the array type probe assembly is arranged on the fixing device;
the fixing device is used for fixing the array type probe assembly with a person to be measured;
the control device is used for obtaining a fetal movement signal and a fetal movement position according to the linear acceleration values collected by the at least three probes, and obtaining a fetal heart signal and a fetal heart position according to the vibration signals collected by the at least three probes;
the control device includes:
the fetal movement signal module is used for randomly selecting two probes from the at least three probes as a combination, calculating the difference value of linear acceleration values acquired by the two probes in one combination, comparing the difference value with a preset threshold value, and judging to obtain a fetal movement signal if the difference value of the at least two combinations in all the combination modes is greater than or equal to the preset threshold value;
the fetal movement position module is used for determining the position of the probe with the maximum acquired linear acceleration value as a fetal movement position;
the fetal heart filtering module is used for filtering a noise signal in the vibration signal according to a preset frequency characteristic and a periodicity characteristic of a fetal heart signal to obtain a preprocessing signal;
the fetal heart cross-correlation module is used for calculating the time difference of the fetal heart signals reaching the two probes according to the preprocessed signals by adopting a weighted phase transformation generalized cross-correlation algorithm;
the fetal heart position module is used for calculating the fetal heart position according to the time difference and the preset propagation speed of the fetal heart signal;
and the fetal heart signal module is used for obtaining a fetal heart signal according to the vibration signal acquired by the probe at the fetal heart position.
2. The maternal monitoring device of claim 1, wherein said control device further comprises a fetal position module;
the fetal position module is used for determining a fetal position according to a preset corresponding relation between a fetal position and the fetal position obtained by the fetal position module;
or the fetal position module is used for identifying the fetal movement position with the highest frequency as a leg position according to the fetal movement position obtained by the fetal movement position module, and determining the fetal position according to the corresponding relation between the preset leg position and the fetal position and the identified leg position;
or the fetal position module is used for obtaining a first result according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position module, regarding the fetal position with the highest frequency as a leg position according to the fetal position obtained by the fetal position module, obtaining a second result according to the preset corresponding relation between the leg position and the fetal position and the determined leg position, determining the first result or the second result as the fetal position under the condition that the first result is consistent with the second result, and determining that the fetal position is abnormal under the condition that the first result is inconsistent with the second result and the first result and the second result are not in the head position.
3. The maternal combined signs monitoring device according to claim 1 or 2,
the array type probe assembly comprises three probes, wherein the three probes form a circular array and are respectively arranged under the navel, on the left side above the navel and on the right side above the navel of the person to be tested.
4. The monitoring device for the comprehensive physical signs of pregnant women according to claim 1 or 2, further comprising a body temperature sensor and/or an ambient temperature sensor and/or a step-counting sensor;
the control device also comprises a basal metabolic rate module which is used for calculating the basal metabolic rate by adopting a preset basal metabolic rate algorithm according to the body temperature collected by the body temperature sensor and/or the environment temperature collected by the environment temperature sensor and/or the step number collected by the step counting sensor and/or the personal information input by the person to be measured.
5. The maternal comprehensive signs monitoring device according to claim 4, further comprising:
the antenatal training device is used for playing antenatal training music.
6. The monitoring device for the comprehensive physical signs of pregnant women, according to claim 5, wherein the fixing device comprises a rear waistband, an upper abdominal supporting belt, a lower abdominal supporting belt and a buckle;
the upper abdominal supporting belt, the lower abdominal supporting belt and the rear waistband are connected through the buckles;
the array type probe assembly is arranged on the lower abdominal supporting belt;
the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device are arranged on the upper support abdominal belt.
7. The monitoring device for the comprehensive physical signs of pregnant women, according to claim 6, wherein a radiation-proof bellyband is arranged between the upper supporting bellyband and the lower supporting bellyband.
8. The maternal monitoring device according to any one of claims 5 to 7, further comprising: the battery supplies power to the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device;
the battery is a dry battery or a lithium battery and is arranged on the fixing device; or the battery is a flexible battery and is embedded into the fixing device.
9. A maternal, integrated physical sign monitoring system, comprising: a monitoring device and a mobile terminal;
wherein, monitor device includes: the array type probe assembly comprises an array type probe assembly, a fixing device and a first communication unit;
the array type probe assembly comprises at least three probes, each probe comprises a fetal movement sensor and a fetal heart sensor, the fetal movement sensor is used for collecting linear acceleration values, the fetal heart sensor is used for collecting vibration signals, and the array type probe assembly is arranged on the fixing device;
the fixing device is used for fixing the array type probe assembly with a person to be measured;
the first communication unit is used for sending the linear acceleration values and the vibration signals collected by the at least three probes to the mobile terminal;
the mobile terminal comprises a second communication unit, a control device and a display device;
the second communication unit is used for receiving the linear acceleration values and the vibration signals collected by the at least three probes of the monitoring device;
the control device is used for obtaining a fetal movement signal and a fetal movement position according to the linear acceleration values collected by the at least three probes, and obtaining a fetal heart signal and a fetal heart position according to the vibration signals collected by the at least three probes;
the display device is used for displaying the fetal movement signal, the fetal movement position, the fetal heart signal and the fetal heart position;
the control device includes:
the fetal movement signal module is used for randomly selecting two probes from the at least three probes as a combination, calculating the difference value of linear acceleration values acquired by the two probes in one combination, comparing the difference value with a preset threshold value, and judging to obtain a fetal movement signal if the difference value of the at least two combinations in all the combination modes is greater than or equal to the preset threshold value;
the fetal movement position module is used for determining the position of the probe with the maximum acquired linear acceleration value as a fetal movement position;
the fetal heart filtering module is used for filtering a noise signal in the vibration signal according to a preset frequency characteristic and a periodicity characteristic of a fetal heart signal to obtain a preprocessing signal;
the fetal heart cross-correlation module is used for calculating the time difference of the fetal heart signals reaching the two probes according to the preprocessed signals by adopting a weighted phase transformation generalized cross-correlation algorithm;
the fetal heart position module is used for calculating the fetal heart position according to the time difference and the preset propagation speed of the fetal heart signal;
and the fetal heart signal module is used for obtaining a fetal heart signal according to the vibration signal acquired by the probe at the fetal heart position.
10. The system of claim 9, wherein the control device further comprises a tire position module;
the fetal position module is used for determining a fetal position according to a preset corresponding relation between a fetal position and the fetal position obtained by the fetal position module;
or the fetal position module is used for identifying the fetal movement position with the highest frequency as a leg position according to the fetal movement position obtained by the fetal movement position module, and determining the fetal position according to the corresponding relation between the preset leg position and the fetal position and the identified leg position;
or the fetal position module is used for obtaining a first result according to a preset corresponding relation between the fetal position and the fetal position obtained by the fetal position module, regarding the fetal position with the highest frequency as a leg position according to the fetal position obtained by the fetal position module, obtaining a second result according to the preset corresponding relation between the leg position and the fetal position and the determined leg position, determining the first result or the second result as the fetal position under the condition that the first result is consistent with the second result, and determining that the fetal position is abnormal under the condition that the first result is inconsistent with the second result and the first result and the second result are not in the head position.
11. The system of claim 9 or 10,
the array type probe assembly comprises three probes, wherein the three probes form a circular array and are respectively arranged under the navel, on the left side above the navel and on the right side above the navel of the person to be tested.
12. The system of claim 9 or 10,
the monitoring device also comprises a body temperature sensor and/or an environment temperature sensor and/or a step-counting sensor;
the first communication unit is further used for sending the body temperature acquired by the body temperature sensor, the environment temperature acquired by the environment temperature sensor and the step counting number acquired by the step counting sensor to the mobile terminal;
the second communication unit is also used for receiving the body temperature acquired by the body temperature sensor, the ambient temperature acquired by the ambient temperature sensor and the step counting number acquired by the step counting sensor from the monitoring device;
the control device also comprises a basal metabolic rate module which is used for calculating the basal metabolic rate by adopting a preset basal metabolic rate algorithm according to the body temperature collected by the body temperature sensor and/or the environment temperature collected by the environment temperature sensor and/or the step number collected by the step counting sensor and/or the personal information input by the person to be measured.
13. The system of claim 12, wherein the monitoring device further comprises:
the antenatal training device is used for playing antenatal training music.
14. The system of claim 13, wherein the securing device comprises: a back waistband, an upper abdominal supporting belt, a lower abdominal supporting belt and a hasp;
the upper abdominal supporting belt, the lower abdominal supporting belt and the rear waistband are connected through the buckles;
the array type probe assembly is arranged on the lower abdominal supporting belt;
the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device are arranged on the upper support abdominal belt.
15. The system of claim 14, wherein a radiation resistant bellyband is disposed between the upper and lower abdominal straps.
16. The system of any one of claims 13 to 15, wherein the monitoring device further comprises: the battery supplies power to the body temperature sensor, the environment temperature sensor, the step counting sensor and the antenatal training device;
the battery is a dry battery or a lithium battery and is arranged on the fixing device; or the battery is a flexible battery and is embedded into the fixing device.
17. The system of claim 12, further comprising a server;
the server is in wireless connection with the mobile terminal;
the mobile terminal is further used for sending one or more of the fetal movement signal, the fetal movement position, the fetal heart signal, the fetal heart position, the fetal position, the basal metabolic rate, the body temperature, the environmental temperature, the step count and/or personal information input by the person to be tested to the server;
the server is further configured to feed back a health suggestion to the mobile terminal according to one or more of the fetal movement signal, the fetal movement position, the fetal heart signal, the fetal heart position, the fetal position, the basal metabolic rate, the body temperature, the environmental temperature, the step count and/or personal information input by the person to be tested, and update one or more of the preset threshold, the preset frequency characteristic and the periodic characteristic of the fetal heart signal, the preset propagation speed of the fetal heart signal, the preset correspondence between the fetal heart position and the fetal position, the preset correspondence between the leg position and the fetal position, the preset basal metabolic rate algorithm, and fetal music in the mobile terminal.
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| CN108652664A (en)* | 2018-05-24 | 2018-10-16 | 上海拓萧智能科技有限公司 | Abdominal belt, support abdomen trousers and baby's health is ask to monitor system |
| CN109480896A (en)* | 2018-10-19 | 2019-03-19 | 北京源动数字健康科技有限公司 | A kind of healthy real-time monitoring device and monitoring method with sound cavity microphone array |
| CN109199445B (en)* | 2018-11-14 | 2022-04-12 | 中聚科技股份有限公司 | Intelligent ultrasonic fetal heart monitoring system |
| CN112155559B (en)* | 2020-09-27 | 2021-11-16 | 永康国科康复工程技术有限公司 | Portable fetal movement monitoring system |
| CN113974943B (en)* | 2021-09-30 | 2024-07-26 | 湖北民族大学 | Monitoring bellyband based on optical fiber sensing and monitoring method thereof |
| CN115054206A (en)* | 2022-06-27 | 2022-09-16 | 西南交通大学 | Real-time intelligent prenatal monitoring system |
| CN115919368A (en)* | 2022-12-27 | 2023-04-07 | 杭州檠润科技有限公司 | Tire orientation determining method and device, electronic equipment and storage medium |
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| CN2678563Y (en)* | 2003-10-10 | 2005-02-16 | 周琦 | Portable multipoint acquisition continuous dynamic fetal monitor |
| CN103142311B (en)* | 2013-03-13 | 2016-01-20 | 江苏矽望电子科技有限公司 | Based on the radiationless baby's health monitoring platform of Internet of Things |
| GB201305937D0 (en)* | 2013-04-02 | 2013-05-15 | Monica Healthcare Ltd | Fetal movement monitor |
| WO2015057623A2 (en)* | 2013-10-14 | 2015-04-23 | Nike Innovate C.V. | Fitness training system for merging energy expenditure calculations from multiple devices |
| CN104306018B (en)* | 2014-10-11 | 2016-08-24 | 重庆理工大学 | There is the monitoring of tire sound, fetal movement detection and the wearable foetus teaching abdomen belt system of fetal movement track inducing function |
| WO2016191866A1 (en)* | 2015-05-29 | 2016-12-08 | Uti Limited Partnership | Sound-generating device for in utero interactions with a developing fetus |
| CN105615918A (en)* | 2016-03-15 | 2016-06-01 | 长春智慧物联科技有限公司 | Multi-fetus heartbeat and movement monitor based on wireless protocol |
| CN106137168A (en)* | 2016-07-28 | 2016-11-23 | 传世未来（北京）信息科技有限公司 | A kind of fetus monitoring method and foetal monitor |
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