CN203493632U - Passive-type fetal heart rate measuring system - Google Patents
Passive-type fetal heart rate measuring system Download PDFInfo
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- CN203493632U CN203493632U CN201320208555.6U CN201320208555U CN203493632U CN 203493632 U CN203493632 U CN 203493632U CN 201320208555 U CN201320208555 U CN 201320208555U CN 203493632 U CN203493632 U CN 203493632U
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Abstract
The utility model discloses a passive-type fetal heart rate measuring system based on an acoustic sensor, which belongs to the fetal heart monitoring technology. The monitoring system comprises an acoustic sensor, a signal conditioning unit, a wireless signal transmitter and an intelligent terminal device, wherein the acoustic sensor is directly or indirectly connected with the signal conditioning unit and used for transmitting a collected heat sound signal to the signal conditioning unit; the signal conditioning unit is connected with the wireless transmitter and used for receiving the heart sound signal from the acoustic sensor and forwarding the heart sound signal to the wireless signal transmitter; the wireless signal transmitter is used for directly transmitting the heart sound signal to the intelligent terminal device; the intelligent terminal device is used for detecting and recording the sound heart signal from the signal conditioning unit through an application program. The acoustic sensor is used for passively monitoring the heart sound signal of a fetus on the belly of a pregnant woman, so that the ultrasonic radiation and the poor user experience can be prevented, and the passive-type fetal heart rate measuring system is suitable for the frequent and repeated examination and families to use; the passive-type fetal heart rate measuring system is simple in structure, small in power consumption, low in application cost, suitable for the industrialized production and easy to popularize.
Description
Technical field
This utility model relates to a kind of fetal heart monitoring technology, and in particular, this utility model relates generally to a kind of passive type Fetal Heart Rate measuring system.
Background technology
At present, on market, there is a large amount of active fetal heart monitoring equipment, adopt ultrasonic radiation mode to obtain Fetal Heart Rate.This Fetal Heart Rate mode of obtaining realizes based on doppler principle, and in the process realizing, need initiatively fetus to be launched to ultrasound wave, ultrasound wave runs into barrier, after heart of fetus, reflect, out by analog multiplier by fetal heart rate signal demodulation finally.Though doppler technique is ripe, the problem of a radiant intensity of ubiquity, belongs to and damages detection category, is not suitable for regular, repeated domestic monitoring and uses.Due to hyperacoustic characteristic, user also must use couplant (air-isolation) to assist could accurately monitor fetal rhythm in addition, and this must bring poor user to experience.Therefore based on the existing defect of aforementioned active fetal heart monitoring equipment, be necessary this kind equipment to do further improvement and research.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, and a kind of passive type Fetal Heart Rate measuring system is provided, and to expect to solve in prior art fetal rhythm monitoring, has Ultrasonic Radiation, should not often use, and the technical problem such as user's experience sense is poor.
For solving above-mentioned technical problem, this utility model by the following technical solutions:
A kind of passive type Fetal Heart Rate measuring system provided by the utility model, described monitor system comprises:
Acoustic sensor, directly or indirectly accesses signal condition unit, for the cardiechema signals collecting is transferred to signal condition unit;
Signal condition unit, access wireless transmitting unit, for receiving the cardiechema signals that comes from acoustic sensor, and forwards it to wireless signal transmission unit;
Wireless signal transmission unit, for being directly sent to intelligent terminal by cardiechema signals;
Intelligent terminal, for detecting the cardiechema signals that comes from signal condition unit and record by application program.
As preferably, further technical scheme is: described acoustic sensor is piezoelectric.
Further technical scheme is: between described acoustic sensor and signal condition unit, be also provided with amplifying unit and filter unit, described acoustic sensor access amplifying unit, amplifying unit access filter unit, filter unit access signal condition unit, after amplifying for cardiechema signals acoustic sensor being collected by amplifying unit, by transferring to again signal condition unit after filtering unit filters noise reduction.
Further technical scheme is: described amplifying unit comprises amplifier and peripheral circuit; Described filter unit comprises second order active high-pass filter and second order active low-pass filter.
Further technical scheme is: described intelligent terminal is smart mobile phone or panel computer, in described smart mobile phone or panel computer, preset for cardiechema signals being compared by application program the threshold value of judgement, application program is stored the cardiechema signals that comes from signal condition unit, and carry out statistical analysis, by lcd screen, present analysis result.
Further technical scheme is: described wireless signal transmission unit is sent to intelligent terminal by FM FM transmission by cardiechema signals; Described signal condition unit comprises diode and current-limiting resistance, described diode access current-limiting resistance, and described diode incoming wireless signal transmitter unit, current-limiting resistance access signal carrys out source.
Compared with prior art, one of the beneficial effects of the utility model are: adopt acoustic sensor at the cardiechema signals of anemia of pregnant woman's the passive monitoring of abdominal part fetus, Ultrasonic Radiation and poor user's experience have been stopped, be applicable to regular, the inspection of repeatability and family are used, and adopt FM FM signal to transmit, wireless transmission is convenient to by intelligent terminal, the result of fetal heart frequency collection be managed, a kind of passive type Fetal Heart Rate measuring system provided by the utility model is simple in structure simultaneously, power consumption is little, use cost is low, and be suitable for suitability for industrialized production, be easy to promote.
Accompanying drawing explanation
Fig. 1 is for the system architecture schematic diagram of an embodiment of this utility model is described;
Fig. 2 is for the system structure schematic block diagram of another embodiment of this utility model is described;
The specific embodiment
Below in conjunction with accompanying drawing, this utility model is further elaborated.
Shown in figure 1, passive type fetal heart monitoring system of the present utility model, is broadly divided into two large ingredients, local data collection terminal and remote intelligent terminal.In this utility model, data sampling rate is 2000 Hz, and every two second time was carried out date processing No. one time, and data acquisition comprises analogue signal amplification, the analog circuit signal processing processes such as analog filtering; Date processing comprises digital filtering, autocorrelation analysis, and threshold process scheduling algorithm uses; Data send the wireless transmission modes such as bluetooth, frequency modulation (FM) that mainly comprise.At local data collection terminal, also can in lcd screen, show basic Fetal Heart Rate information, battery electric quantity information, volume adjusting information etc. in addition.Remote intelligent terminal mainly comprises data receiver, date processing and related application etc.Application program can be developed on intelligent terminal, such as panel computer and smart mobile phone etc.This development scheme has not only been saved cost, and has good user's experience.
Shown in figure 2, the corresponding function that monitor system possesses just as described above, an embodiment of the present utility model is passive type Fetal Heart Rate measuring system, in this monitor system, should comprise:
Acoustic sensor, directly or indirectly accesses signal condition unit, for the cardiechema signals collecting is transferred to signal condition unit;
Signal condition unit, incoming wireless signal transmitter unit, for receiving the cardiechema signals that comes from acoustic sensor, and forwards it to wireless signal transmission unit;
Wireless signal transmission unit, for being directly sent to intelligent terminal by cardiechema signals;
Intelligent terminal, for detecting the cardiechema signals that comes from signal condition unit and record by application program.
In the present embodiment, the cardiechema signals that wireless signal transmission unit collects acoustic sensor is emitted to intelligent terminal by antenna by FM FM signal, intelligent terminal receives FM signal by corresponding hardware, adopt the object of wireless transmission cardiechema signals for local data collecting part and remote intelligent terminal are separated, to improve the effective management to anemia of pregnant woman's fetal heart sound situation, also avoid holding wire to using the constraint that causes simultaneously.And in actual applications, above-mentioned acoustic sensor can be designed to probe, to facilitate with anemia of pregnant woman's abdominal part, contact.
In the above-described embodiment, inventor, with reference to prior art, adopts high performance piezoelectric to be processed into above-mentioned acoustic sensor.
Shown in Fig. 2, at this utility model, be used for technical solution problem, in an embodiment who is more preferably, for further promoting the integrity of cardiechema signals, avoid decay occurring or can not being identified by system rear end, preferably between the acoustic sensor in monitor system and signal condition unit, set up amplifying unit and filter unit again, described acoustic sensor access amplifying unit, amplifying unit access filter unit, filter unit access signal condition unit, after amplifying for cardiechema signals acoustic sensor being collected by amplifying unit, by transferring to again signal condition unit after filtering unit filters noise reduction.And then guaranteed the integrity of cardiechema signals.Meanwhile, same as the prior art, acoustic sensor, amplifying unit, filter unit, signal condition unit, wireless signal transmission unit and antenna all access power management module.
In addition, inventor is also with reference to prior art, for the above-mentioned system hardware unit of mentioning, carry out following refinement, so that those skilled in the art implements, that is to say preferred implementation of the present utility model: described amplifying unit comprises amplifier and peripheral circuit; Described filter unit comprises second order active high-pass filter and second order active low-pass filter.Described signal condition unit comprises diode and current-limiting resistance, diode access current-limiting resistance, and described diode incoming wireless signal transmitter unit, current-limiting resistance access signal carrys out source.
According to another embodiment of the present utility model, above-mentioned intelligent terminal can directly adopt smart mobile phone or panel computer, and in smart mobile phone or panel computer, preset for cardiechema signals being compared by application program the threshold value of judgement, application program is stored the cardiechema signals that comes from signal condition unit in corresponding hardware, and carry out statistical analysis with this, then present analysis result by lcd screen.
Above-mentioned application program is the types of applications software of operating system (for example Android OS, iOS, the windows Phone) exploitation based in smart mobile phone or panel computer, software utilizes the above-mentioned function of corresponding hardware implement on smart mobile phone or panel computer, because the application of at present smart mobile phone and panel computer is comparatively general, so locate no longer to describe in detail for the exploitation of aforementioned software and the mode of calling hardware.But for guaranteeing the realization of above-mentioned functions, in application program, should comprise as lower module:
Acoustical signal detection module, for extracting and represent that the acoustical signal of fetal rhythm transfers to data processing module from many signals;
Data processing module, for by filtering algorithm, autocorrelation analysis and threshold calculations, the acoustical signal of extracting being processed, and transfers to respectively data disaply moudle, data record and playback module by the acoustical signal after processing;
Data disaply moudle, for presenting the acoustical signal after processing by LCD display;
Data record and playback module, store for the signal data that local transmission is come, and the data of storage can be carried out to playback targetedly;
Data statistics module, carries out statistical analysis for the data that data record and review module is stored.
In addition, user also can obtain a mathematical statistics of own long term data, and by checking statistical trend graph, anemia of pregnant woman can understand the development trend with pregnant time of Fetal Heart Rate at any time.
Except above-mentioned, also it should be noted that " embodiment ", " another embodiment " that spoken of in this manual, " embodiment " etc., refer to specific features, structure or the feature in conjunction with this embodiment, described and be included at least one embodiment that the application's generality describes.In description, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to drop in scope of the present utility model.
Although this utility model is described with reference to a plurality of explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (5)
1. a passive type Fetal Heart Rate measuring system, is characterized in that described monitor system comprises:
Acoustic sensor, directly or indirectly accesses signal condition unit, for the cardiechema signals collecting is transferred to signal condition unit;
Signal condition unit, incoming wireless signal transmitter, for receiving the cardiechema signals that comes from acoustic sensor, and forwards it to wireless signal transmission unit;
Wireless signal transmission unit, for being directly sent to intelligent terminal by cardiechema signals;
Intelligent terminal, for detecting the cardiechema signals that comes from signal condition unit and record by application program.
2. passive type Fetal Heart Rate measuring system according to claim 1, is characterized in that: described acoustic sensor is piezoelectric.
3. passive type Fetal Heart Rate measuring system according to claim 1, it is characterized in that: between described acoustic sensor and signal condition unit, be also provided with amplifying unit and filter unit, described acoustic sensor access amplifying unit, amplifying unit access filter unit, filter unit access signal condition unit, after amplifying for cardiechema signals acoustic sensor being collected by amplifying unit, by transferring to again signal condition unit after filtering unit filters noise reduction.
4. passive type Fetal Heart Rate measuring system according to claim 1, is characterized in that: described amplifying unit comprises amplifier and peripheral circuit; Described filter unit comprises second order active high-pass filter and second order active low-pass filter.
5. passive type Fetal Heart Rate measuring system according to claim 1, is characterized in that: described wireless signal transmission unit is sent to intelligent terminal by FM FM transmission by cardiechema signals; Described signal condition unit comprises diode and current-limiting resistance, described diode access current-limiting resistance, and described diode incoming wireless signal transmitter unit, current-limiting resistance access signal carrys out source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320208555.6U CN203493632U (en) | 2013-04-23 | 2013-04-23 | Passive-type fetal heart rate measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320208555.6U CN203493632U (en) | 2013-04-23 | 2013-04-23 | Passive-type fetal heart rate measuring system |
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| Publication Number | Publication Date |
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| CN203493632U true CN203493632U (en) | 2014-03-26 |
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| CN201320208555.6U Expired - Lifetime CN203493632U (en) | 2013-04-23 | 2013-04-23 | Passive-type fetal heart rate measuring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586428A (en) * | 2015-01-04 | 2015-05-06 | 张敏 | Pick device for fetal heartbeat sound |
| CN107157474A (en) * | 2017-06-27 | 2017-09-15 | 西南医科大学 | A kind of portable multiparity's electrocardioscanner and its monitoring method |
-
2013
- 2013-04-23 CN CN201320208555.6U patent/CN203493632U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586428A (en) * | 2015-01-04 | 2015-05-06 | 张敏 | Pick device for fetal heartbeat sound |
| CN107157474A (en) * | 2017-06-27 | 2017-09-15 | 西南医科大学 | A kind of portable multiparity's electrocardioscanner and its monitoring method |
| CN107157474B (en) * | 2017-06-27 | 2020-04-28 | 西南医科大学 | Portable multicytosis electrocardioscanner and monitoring method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HANGZHOU WELBEING MEDICAL TECHNOLOGY CO.,LTD. Assignor: CYNOWARE ELECTRONICS Inc. Contract record no.: 2016320000227 Denomination of utility model: Passive-type fetal heart rate measuring system Granted publication date: 20140326 License type: Exclusive License Record date: 20161228 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
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| CX01 | Expiry of patent term |