CN201088594Y - Multifunctional fetal heart rate device - Google Patents
Multifunctional fetal heart rate device Download PDFInfo
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- CN201088594Y CN201088594Y CNU2007201733043U CN200720173304U CN201088594Y CN 201088594 Y CN201088594 Y CN 201088594Y CN U2007201733043 U CNU2007201733043 U CN U2007201733043U CN 200720173304 U CN200720173304 U CN 200720173304U CN 201088594 Y CN201088594 Y CN 201088594Y
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Abstract
The utility model relates to a multifunctional fetal Doppler, which comprises a power supply, an ultrasonic probe module, a voice frequency channel module and a digital voice/video frequency module; wherein, fetal heart voice frequency signals output by the ultrasonic probe module is connected to a pulse-forming circuit and voice/video signals of a digital voice/video frequency player is connected to the voice frequency channel module. The ultrasonic probe module adopts the Doppler ultrasonic probe and the voice frequency channel module adopts an inner magnetic microphone. The multifunctional fetal Doppler of the utility model adopts the inner magnetic microphone, and the digital transcription and the playback of fetal heart sound are done by MP3/MP4, so that the sound is more true and clear, with number and graphic display of the fetal heart rate. The utility model also has the household voice/video functions of playing music and films of multiple formats for maternal impression, and the subsidiary functions of an e-book, a telephone list and picture display. The USB2.0 interface is adopted, so that the data exchange can be done with the computer at any time.
Description
Technical field
This utility model relates to armarium, particularly a kind of multi-functional fetus-voice meter.
Background technology
At present, traditional at home and abroad fetus-voice meter only can be listened fetal heart sound and show the fetal heart frequency numeral, and range of application is narrow.The demand that improves day by day for the user, for example fetus education and recording and playback fetal heart sound etc., exist many weak points on the prior art, comprise and do not adopt advanced digital lossless compress and decompress(ion) play-back technology to record and the playback fetal heart sound, do not possess high capacity bin and display, be not connected the interface that transmits data with computer and obtain fetal rhythm rate curve of diagnostic value etc. thereby do not possess.By above analysis as can be known, the backward state of traditional multi-functional fetus-voice meter can not be met the need of market, and can not have as yet at present at the multifunction digital fetus-voice meter equipment of marketing to see.
The utility model content
The purpose of this utility model is to provide a kind of detection fetal rhythm rate sound more clear, and the number that can carry out fetal heart sound is recorded, the numeral and the curve display of playback and fetal rhythm rate, simultaneously can be for carrying out the multi-functional fetus-voice meter that general digital audio/video is recorded and play.
For achieving the above object, the multi-functional fetus-voice meter that this utility model provides, comprise power supply, ultrasonic probe module and voice-grade channel module, also comprise a digital audio/video module, described digital audio/video module comprises pulse shaping circuit, single-chip microcomputer and the digital audio/video player that links to each other successively, the fetal rhythm audio signal of described ultrasonic probe module output is connected to pulse shaping circuit, and the audio/video signal of described digital audio/video player is connected to described voice-grade channel module.
The multi-functional fetus-voice meter of this utility model, wherein said ultrasonic probe module adopts ultrasonic Doppler transducer, comprises the radiating circuit, ultrasonic transducer and the receiving demodulation circuit that link to each other successively, and described receiving demodulation circuit is exported described fetal rhythm audio signal.
The multi-functional fetus-voice meter of this utility model, wherein said voice-grade channel module comprise bandpass amplifier, power amplifier and the speaker that links to each other successively, and described audio/video signal is connected to described speaker through described bandpass amplifier and power amplifier.
The multi-functional fetus-voice meter of this utility model, wherein said digital audio/video player is the MP3/MP4 player, is provided with LCD LCDs and the USB serial communication interface that is used for linking to each other with external PC.
The multi-functional fetus-voice meter of this utility model, wherein said speaker adopts the internal magnetization microphone.
The multi-functional fetus-voice meter of this utility model, wherein said power supply adopts Li-Ion rechargeable battery.
The advantage of the multi-functional fetus-voice meter of this utility model is:
1. record and the playback fetal heart sound owing to adopting MP3/MP4 to carry out number, its sample rate is recorded fetal heart sound more with high fidelity more than 8KHz, and the AIFC of having recorded is very general, can preserve and play at computer;
2, adopt the USB2.0 interface, under the situation that need not increase driver, can be connected with computer at any time and swap data, the fetal rhythm rate curve of diagnostic value is arranged with detection by the computer the poster processing soft;
3, employing has high capacity memory function digit chip, and maximum can extend to 8G, can also play the fetal music of multiple form, and children's song etc. possess functions such as family's audio frequency and video amusement function and subsidiary e-book, phone directory and picture demonstration;
4, adopt 2.2 cun 65536 color LCD LCDs, resolution can reach the 220*176 pixel;
5, built-in Li-Ion rechargeable battery, available general MP3 charger or the charging of computer USB mouth.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that the purpose of this utility model, feature and advantage are had deep understanding.
Description of drawings
Fig. 1 is the block diagram of the multi-functional fetus-voice meter of this utility model;
Fig. 2 is the circuit diagram of radiating circuit among Fig. 1;
Fig. 3 is the circuit diagram of receiving demodulation circuit among Fig. 1;
Fig. 4 is the circuit diagram of bandpass amplifier among Fig. 1;
Fig. 5 is the circuit diagram of Fig. 1 intermediate power amplifier;
Fig. 6 is the block diagram of digital audio/video module among Fig. 1;
Fig. 7 is the circuit diagram of master control logic processing unit among Fig. 6;
Fig. 8 is the circuit diagram of pulse shaping circuit among Fig. 1;
Fig. 9 is the circuit diagram of single-chip microcomputer among Fig. 1;
Figure 10 is the circuit diagram of Flash memorizer among Fig. 6.
The specific embodiment
With embodiment technical scheme is elaborated below.
With reference to Fig. 1, the multi-functional fetus-voice meter of this utility model is made up of power supply 1, ultrasonic probe module 2, digital audio/video module 3 and voice-grade channel module 4.Power supply 1 adopts the rechargeable battery power supply.
Wherein, ultrasonic probe module 2 adopts known product ultrasonic Doppler transducer, comprises the radiating circuit 21, ultrasonic transducer 22 and the receiving demodulation circuit 23 that link to each other successively, by receiving demodulation circuit 23 output fetal rhythm audio signals.
Digital audio/video module 3 comprises pulse shaping circuit 33, single-chip microcomputer 32 and the digital audio/video player 31 that links to each other successively.The fetal rhythm audio signal of ultrasonic probe module 2 outputs is connected to pulse shaping circuit 33, and the audio/video signal of digital audio/video player 31 is connected to voice-grade channel module 4.Voice-grade channel module 4 comprises bandpass amplifier 41, power amplifier 42 and the speaker 43 that links to each other successively.Speaker 43 adopts the internal magnetization microphone.
Digital audio/video player 31 adopts the MP3/MP4 player, and the MP3/MP4 player is provided with the LCD LCDs.Digital audio/video player 31 also is provided with and is used for the USB serial communication interface that links to each other with external PC.
With embodiment the main circuit and the work process of the ultrasonic probe module 2 in the multi-functional fetus-voice meter of this utility model, digital audio/video module 3 and voice-grade channel module 4 are described respectively below.
In ultrasonic probe module 2, with reference to Fig. 2, radiating circuit 21 selects for use the low noise audion to be made of oscillating circuit, and this circuit mainly is made up of an oscillator stage and promotion level two parts, and agitator is the LC bikini oscillator, its frequency of oscillation is 1-3MHz, the generation amplitude is about the sinusoidal signal of 2V, and second portion removes to be pushed to transducer for promoting level with the sinusoidal signal that oscillator stage produces, make it produce ultrasonic signal, outwards emission.
With reference to Fig. 3, receiving demodulation circuit 23 amplifies the voltage signal that transducer 22 produces through receiving circuit, be input to demodulator circuit, and by by four-quadrant multiplier signal being carried out demodulation, the Doppler signal voltage that demodulates is input to pulse shaping circuit 33.
In digital audio/video module 3, with reference to Fig. 8, handle again by 33 pairs of audio signals of pulse shaping circuit, convert pulse signal to by the envelope signal of sound, making things convenient for picking up of 32 pairs of signals of single-chip microcomputer, by relatively can also filtering part clutter.
With reference to Fig. 9, single-chip microcomputer 32 adopts 89c2051 as processor, is used to collect fetal rhythm information, obtains fetal rhythm rate data by computing and shows for the numeral to the fetal rhythm rate.Simultaneously data are sent to external PC by the USB serial communication interface and finish drafting the fetal rhythm curve.
Digital audio/video player 31 has adopted MP3/MP4 player of the prior art.With reference to Fig. 6, mainly comprise digital signal processor DSP (Digital Sign Processor), master control logic processing unit, FLASH storage control unit and Flash memorizer.
Digital signal processor DSP (Digital Sign Processor) is finished the task of handling transmission and decoding audio-video document, DSP can finish multiple Processing tasks in the very short time, and the energy that this process consumed is few, transfer of data is administered in the master control logic unit, equipment interface control, file decoding playback etc.At first, file taken out and read the signal on the memorizer from internal memory, then, to decoding chip signal is decoded, the digital signal that will separate out by DSP converts analogue signal to and is connected to the voice-grade channel module again.In addition, digital audio/video module is provided with color LCD display, USB interface, keystroke interface.
Wherein, with reference to Fig. 7, it is the chip of ATJ2097 that master control logic processing unit chip adopts model.Not only determine the speed of Audio Processing, also determined special audio function, comprised multiple EQ, 3D audio.Decoding chip also is one of most important part that influences tonequality, and the decoding chip ATJ2097h that we adopt is very outstanding in these areas, and the Bootloader of its DSP has adopted HPI mouth mode.Because data, the address bus pin of HPI pin and DSP are separate on hardware, HPI mouth inside has control mechanism again simultaneously, so external host can not influence the normal operation of DSP when visiting the DSP internal RAM by the HPI mouth.
With reference to Figure 10, digital audio/video module has adopted FLASH chip K9K4G08UOM, with high capacity FLASH MEMORY as main storage hardware store voice document, the DSP program also is stored among the FLASH, reboot the high-speed RAM of DSP during operation, thereby save the program's memory space of dsp chip part.Utilize the USB serial communication circuit can realize downloading the voice document function, utilize chromatic liquid crystal screen LCD, can also download literal and read from PC at LCD by PC.FLASH chip K9K4G08UOM memory capacity is 512M, reads page or leaf needs: 6 orders, addressing period * 25ns+25 μ s+ (2K+64) * 25ns=78 μ s.The actual transfer rate of reading of K9K4G08UOM: 2KB byte ÷ 78 μ s=26.3MB/s.
In voice-grade channel module 4, with reference to Fig. 4, bandpass amplifier 41 is formed the secondary filter amplifier by LM358, amplifies audio signal, and filtering clutter, its mid frequency are 800Hz, and this frequency is convenient to back level Signal Processing.Circuit adopts single supply center voltage power supply mode.Supply voltage is 5V.With reference to Fig. 5, power amplifier 32 is made of TDA2282 power amplifier (IC3), and audio signal carries out outputing to speaker 43 after the power amplification.Speaker 43 is selected the high-quality speaker-matched, adopts the internal magnetization microphone.
The analogue audio frequency amplifying signal of digital audio/video module 3 after conversion is transported in the bandpass amplifier 41, and bandpass amplifier 41 amplifies acoustical signal by power amplifier, has been exactly our fetal heart sound heard or music after the power amplifier output.
The multi-functional fetus-voice meter of this utility model is recorded and the playback fetal heart sound owing to adopting MP3/MP4 to carry out number, makes the fetal heart sound that detects and record more clear.Adopt the internal magnetization microphone, can play fetal heart sound, fetal movement sound, placental blood eddy current sound and the borborygmus sound recorded with high fidelity, and have the numeral demonstration of fetal rhythm rate.Adopt the USB2.0 interface, under the situation that need not increase driver, can be connected with computer at any time and swap data, the fetal rhythm rate curve of diagnostic value is arranged with detection.Employing has high capacity memory function digit chip, and maximum can extend to 8G, can also play fetal music, film of multiple form etc., possesses functions such as family's audio frequency and video amusement function and subsidiary e-book, phone directory and picture demonstration.Adopt 2.2 cun 65536 color LCD LCDs, resolution can reach the 220*176 pixel.Built-in Li-Ion rechargeable battery, available general MP3 charger or the charging of computer USB mouth.
Claims (6)
1. multi-functional fetus-voice meter, comprise power supply (1), ultrasonic probe module (2) and voice-grade channel module (4), it is characterized in that: also comprise a digital audio/video module (3), described digital audio/video module (3) comprises pulse shaping circuit (33), single-chip microcomputer (32) and the digital audio/video player (31) that links to each other successively, the fetal rhythm audio signal of described ultrasonic probe module (2) output is connected to pulse shaping circuit (33), and the audio/video signal of described sign indicating number audio/video player (31) is connected to described voice-grade channel module (4).
2. multi-functional fetus-voice meter according to claim 1, it is characterized in that: wherein said ultrasonic probe module (1) adopts ultrasonic Doppler transducer, comprise the radiating circuit (21), ultrasonic transducer (22) and the receiving demodulation circuit (23) that link to each other successively, the described fetal rhythm audio signal of described receiving demodulation circuit (23) output.
3. multi-functional fetus-voice meter according to claim 1 and 2, it is characterized in that: wherein said voice-grade channel module (4) comprises bandpass amplifier (41), power amplifier (42) and the speaker (43) that links to each other successively, and described audio/video signal is connected to described speaker (43) through described bandpass amplifier (41) and audio power amplifier (42).
4. multi-functional fetus-voice meter according to claim 3 is characterized in that: wherein said digital audio/video player (31) is the MP3/MP4 player, is provided with LCD LCDs and the USB serial communication interface that is used for linking to each other with external PC.
5. multi-functional fetus-voice meter according to claim 4 is characterized in that: wherein said speaker (43) adopts the internal magnetization microphone.
6. according to the multi-functional fetus-voice meter of claim 5, it is characterized in that: wherein said power supply (1) adopts Li-Ion rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201733043U CN201088594Y (en) | 2007-09-21 | 2007-09-21 | Multifunctional fetal heart rate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201733043U CN201088594Y (en) | 2007-09-21 | 2007-09-21 | Multifunctional fetal heart rate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201088594Y true CN201088594Y (en) | 2008-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201733043U Expired - Fee Related CN201088594Y (en) | 2007-09-21 | 2007-09-21 | Multifunctional fetal heart rate device |
Country Status (1)
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| CN (1) | CN201088594Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101889876A (en) * | 2010-08-23 | 2010-11-24 | 秦皇岛市康泰医学系统有限公司 | Fetal heart rate detection method based on PC |
| WO2010148601A1 (en) * | 2009-06-22 | 2010-12-29 | 深圳京柏医疗设备有限公司 | Device, system and method for detecting fetal heart rate |
| CN102056678A (en) * | 2008-04-18 | 2011-05-11 | 优视紫外线系统公司 | Mist-generatmg device for the purpose of sanitizing vehicle interiors and HVAC systems |
| CN104083180A (en) * | 2014-07-28 | 2014-10-08 | 深圳京柏医疗设备有限公司 | Ultrasound fetus sound instrument |
| CN105662464A (en) * | 2016-01-08 | 2016-06-15 | 深圳大学 | Ultrasonic-wave fetal heart monitor and digital demodulation method for echo signal of ultrasonic wave fetal heart monitor |
| CN106377279A (en) * | 2016-08-29 | 2017-02-08 | 深圳市理邦精密仪器股份有限公司 | Fetal heart audio signal processing method and apparatus |
-
2007
- 2007-09-21 CN CNU2007201733043U patent/CN201088594Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056678A (en) * | 2008-04-18 | 2011-05-11 | 优视紫外线系统公司 | Mist-generatmg device for the purpose of sanitizing vehicle interiors and HVAC systems |
| CN102056678B (en) * | 2008-04-18 | 2014-12-31 | 优视紫外线系统公司 | Mist-generatmg device for the purpose of sanitizing vehicle interiors and HVAC systems |
| WO2010148601A1 (en) * | 2009-06-22 | 2010-12-29 | 深圳京柏医疗设备有限公司 | Device, system and method for detecting fetal heart rate |
| CN101889876A (en) * | 2010-08-23 | 2010-11-24 | 秦皇岛市康泰医学系统有限公司 | Fetal heart rate detection method based on PC |
| CN104083180A (en) * | 2014-07-28 | 2014-10-08 | 深圳京柏医疗设备有限公司 | Ultrasound fetus sound instrument |
| CN104083180B (en) * | 2014-07-28 | 2016-05-04 | 深圳京柏医疗设备有限公司 | A kind of ultrasonic fetal gage |
| CN105662464A (en) * | 2016-01-08 | 2016-06-15 | 深圳大学 | Ultrasonic-wave fetal heart monitor and digital demodulation method for echo signal of ultrasonic wave fetal heart monitor |
| CN106377279A (en) * | 2016-08-29 | 2017-02-08 | 深圳市理邦精密仪器股份有限公司 | Fetal heart audio signal processing method and apparatus |
| CN106377279B (en) * | 2016-08-29 | 2019-12-10 | 深圳市理邦精密仪器股份有限公司 | Fetal heart audio signal processing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20100921 |