CN102805614A - Medical detection device and system - Google Patents
Medical detection device and system Download PDFInfo
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- CN102805614A CN102805614A CN2012102919721A CN201210291972A CN102805614A CN 102805614 A CN102805614 A CN 102805614A CN 2012102919721 A CN2012102919721 A CN 2012102919721A CN 201210291972 A CN201210291972 A CN 201210291972A CN 102805614 A CN102805614 A CN 102805614A
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Abstract
The invention provides a medical detection device and a system which comprise a medical detection unit and a signal conversion unit, wherein the medical detection unit is used for detecting an analog signal for showing human body physiological parameters; and the signal conversion unit is used for converting the analog signal for showing the human body physiological parameters into a signal with an audio format to conveniently transmit the human body physiological parameters to external terminals in a manner of the audio signal. The medical detection device and the system have the beneficial effects that in the embodiment provided by the invention, the human body physiological parameters detected by the medical detection unit are converted by the signal conversion unit to obtain the signal with the audio format for showing the human body physiological parameters, and then the signals with the audio format for showing the human body physiological parameters are transmitted to the external terminals through an audio connector; and the function that the medical detection unit is in formation communication with the various external terminals is expanded, the compatibility of formation communication with the external terminals is improved, and meanwhile, the stability when the human body physiological parameters are transmitted is also ensured.
Description
Technical field
The present invention relates to the technical field of intelligent appliance, particularly, relate to a kind of medical inspection device and system.
Background technology
In the prior art, various medical inspection devices such as blood oxygen detection, pedometer, small-sized heart rate measuring instrument meter detect and obtain after the human body physiological parameter, need USB interface that human body physiological parameter is sent to exterior terminal usually.
For medical inspection devices such as blood oxygen detection, pedometer, small-sized heart rate measuring instrument meter, be faced with the trend of miniaturization at present, carry, place and use to make things convenient for the user.Yet; In the trend toward miniaturization of medical inspection device, for the function of expanding medical inspection device and with the compatibility of other exterior terminals, often designed more USB interface; Compare more and more littler medical inspection device machine volume; The ratio of the shared medical inspection device volume of the volume of USB interface is increasing, and the size of USB interface and quantity have hindered the trend toward miniaturization of medical inspection device, and; The complicated circuit that a plurality of USB interfaces also will cause medical inspection device is set on the medical inspection device, causes the transfer of data of human body physiological parameter unstable.In addition; Some external equipments (the for example audio/video player of personal digital assistant, e-book, Apple, IPAD etc.) itself do not possess USB interface or only possess special interface (for example mini USB interface), so just can't receive the physiological data that those general medical inspection devices that adopt USB interface to carry out transfer of data obtain.But these equipment generally all comprise the interface that can carry out audio signal transmission.
Summary of the invention
For addressing the above problem, the present invention provides a kind of medical inspection device and system, is used for solving many, the transfer of data problem of unstable of interface on the prior art medical inspection device.
For this reason, the present invention provides a kind of medical inspection device, wherein, comprising:
Medical science detecting unit and signal conversion unit;
Said medical science detecting unit is used in the analogue signal that detects the expression human body physiological parameter;
Said signal conversion unit is used for the analog signal conversion of expression human body physiological parameter is become the signal of audio format, so that the form of human body physiological parameter through audio signal sent to exterior terminal;
Be electrically connected between said medical science detecting unit and the signal conversion unit.
Wherein, said signal conversion unit comprises: adapter circuit, output interface circuit and COBBAIF;
Said adapter circuit is used for the let others have a look at analogue signal of body physiological parameter of his-and-hers watches and carries out rectification, filtering and analog digital conversion, to obtain representing the digital signal of human body physiological parameter;
Said output interface circuit is used for digital signal is converted to the signal of audio format;
Said COBBAIF sends to exterior terminal with the signal of audio format;
The input of said output interface circuit is connected with said adapter circuit, COBBAIF respectively with outfan.
Wherein, said adapter circuit comprises:
Transformator, first FET, second FET, the 3rd FET, the 4th FET, Schottky diode, filter capacitor and hold-off diode;
One end of said transformator is connected with the drain electrode of the source electrode of said first FET, the 3rd FET, the grid of second FET, the grid of the 4th FET;
The other end of said transformator is connected with the grid of said first FET, the grid of the 3rd FET, the source electrode of second FET, the drain electrode of the 4th FET;
The input of said Schottky diode is connected with the source electrode of said the 3rd FET, the drain electrode of the 4th FET, and the outfan of said Schottky diode is connected with the input of said hold-off diode;
One end of said filter capacitor is connected between said Schottky diode and the hold-off diode, the other end ground connection of said electric capacity;
The output head grounding of said hold-off diode, the grounded drain of the drain electrode of said first FET, second FET.
Wherein, said transformator is a step-up transformer.
Wherein, output interface circuit comprises left channel signals passage, right-channel signals passage, microprocessor and low pass filter;
Said left channel signals passage and right-channel signals passage are used to receive the audio format signal of expression human body physiological parameter; Said microprocessor will represent that the conversion of signals of human body physiological parameter becomes the signal of audio format, through low pass filter the signal of this audio format sent to COBBAIF;
The input of said microprocessor is connected with said left channel signals passage, right-channel signals passage, the outfan of said microprocessor and said low pass filter.
Wherein, said microprocessor adopts the MSP430 microprocessor.
Wherein, said signal conversion unit also comprises: audio connector is used to be connected on the COBBAIF of exterior terminal and with exterior terminal and communicates by letter.
Wherein, the output impedance of said audio connector is 3.6 ohm.
Wherein, said medical science detecting unit comprises at least a in following:
Heart rate measuring instrument, instrument for measuring blood pressure, blood oxygen detection, pedometer and clinical thermometer.
The present invention also provides a kind of medical detection system, wherein, comprises exterior terminal and any one above-mentioned medical inspection device.
The present invention has following beneficial effect:
Among the embodiment provided by the invention; Through signal conversion unit the human body physiological parameter that the medical science detection obtains is changed; Signal with the audio format that obtains representing human body physiological parameter; So that the form of human body physiological parameter through audio signal sent to exterior terminal through audio connector; Expanded the function that medical science detecting unit and various exterior terminal carry out information communication, improved the compatibility of carrying out information communication with exterior terminal, the stability when also guaranteeing to transmit human body physiological parameter simultaneously.
Description of drawings
Fig. 1 is the structural representation of medical inspection device first embodiment of the present invention;
Fig. 2 is the structural representation of medical inspection device second embodiment of the present invention;
Fig. 3 is the structural representation of adapter circuit in the present embodiment;
Fig. 4 is the structural representation of present embodiment output interface circuit;
Fig. 5 is the structural representation of medical detection system of the present invention.
The specific embodiment
For making those skilled in the art understand technical scheme of the present invention better, medical inspection device provided by the invention and system are described in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of medical inspection device first embodiment of the present invention.As shown in Figure 1; The present embodiment medical inspection device comprises medical science detecting unit 10 and signal conversion unit 20, and wherein, medical science detecting unit 10 is used to detect the analogue signal of expression human body physiological parameter; Signal conversion unit 20 is used for the analog signal conversion of human body physiological parameter is become the signal of audio format; So that human body physiological parameter is sent to the COBBAIF of exterior terminal through the form of audio signal, thus make medical inspection device a plurality of USB interfaces need be set, simplified the line construction in the medical inspection device; Avoid the transfer of data problem of unstable, and the stability of the signal of audio format is strong, versatility is high.At present, comprise that nearly all exterior terminal of computer, mobile phone, personal digital assistant and e-book all has COBBAIF, so the signal of the audio format of human body physiological parameter and exterior terminal is compatible high.
In practical application, medical science detecting unit 10 can comprise one or more arbitrarily in heart rate measuring instrument, instrument for measuring blood pressure, blood oxygen detection, pedometer and the clinical thermometer.
Fig. 2 is the structural representation of medical inspection device second embodiment of the present invention, and Fig. 3 is the structural representation of adapter circuit in the present embodiment, and Fig. 4 is the structural representation of present embodiment output interface circuit.As shown in Figure 2; In the present embodiment medical inspection device; Signal conversion unit 20 comprises adapter circuit 201, output interface circuit 202 and COBBAIF 203, and wherein, the let others have a look at analogue signal of body physiological parameter of adapter circuit 201 his-and-hers watches is carried out rectification, filtering and analog digital conversion; To obtain representing the digital signal of human body physiological parameter; Output interface circuit 202 converts digital signal the signal of audio format to, the input of output interface circuit 202 be connected adapter circuit 201, the outfan of output interface circuit 202 is connected with COBBAIF 203; COBBAIF 203 can be connected with the COBBAIF of exterior terminal through audio connector, thereby realizes information communication with exterior terminal.
As shown in Figure 3; Adapter circuit 201 comprises: transformator T, the first FET Q1, the second FET Q2, the 3rd FET Q3, the 4th FET Q4, Schottky diode D1, filter capacitor and hold-off diode D2; The quantity of filter capacitor can be three; Comprise first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3; The equal ground connection of one end of first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3, the other end of first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3 all is connected between Schottky diode D1 and the hold-off diode D2.Wherein, The end of transformator T is connected with the drain electrode of the source electrode of the first FET Q1, the 3rd FET Q3, the grid of the second FET Q2, the grid of the 4th FET Q4; The other end of transformator T is connected with the grid of the first FET Q1, the grid of the 3rd FET Q3, the source electrode of the second FET Q2, the drain electrode of the 4th FET Q4; The input of Schottky diode D1 is connected with the source electrode of the 3rd FET Q3, the drain electrode of the 4th FET Q4; The outfan of Schottky diode D1 is connected with the input of hold-off diode D2; The output head grounding of hold-off diode D2, the grounded drain of the drain electrode of the first FET Q1, the second FET Q2.In practical application; Transformator T can adopt step-up transformer; For example can adopt the step-up transformer of the LPR6235 model of Coilcraft Inc. (Coilcraft) manufacturing; The first FET Q1, the second FET Q2, the 3rd FET Q3, the 4th FET Q4 and Schottky diode D1 carry out rectification to the stepped voltage of transformator T output, and filter capacitor carries out filtering to the stepped voltage of transformator T output.In view of the versatility of analog to digital conversion circuit and device, do not express relevant circuit at this.In the present embodiment; Because the stepped voltage of transformator T output is higher than the gate voltage of each above-mentioned FET; So each above-mentioned FET conducting also provides marginal loss; To strengthen the stability of transformator T output voltage, reduced the conducting electric current of hold-off diode D2 simultaneously, to reduce the forward voltage drop of hold-off diode D2.Carry out after rectification, filtering and the analog digital conversion through the let others have a look at analogue signal of body physiological parameter of adapter circuit 201 his-and-hers watches, obtain representing the digital signal of human body physiological parameter.
In practical application, the primary direct current of transformator T resistance L is 200 m Ω, elementary reactance X
LBe 25 μ H, then the computing formula according to driving frequency f can obtain its driving frequency f, and the computing formula of driving frequency f is shown in formula (1):
f=X
L/(2πL) （1）
Wherein, X
LBe elementary reactance, L is the primary direct current resistance.
Can calculate driving frequency f according to formula (1) is 22.9kHz.
As shown in Figure 4; Output interface circuit 202 comprises microprocessor 2020, left channel signals passage 2021, right-channel signals passage 2022 and low pass filter 2023; The input of microprocessor 2020 connects left channel signals passage 2021 and right-channel signals passage 2022 respectively; The outfan of microprocessor 2020 connects low pass filter 2023; Be connected with COBBAIF 203, left channel signals passage 2021 is respectively applied for the signal that receives dissimilar or kind human body physiological parameter with right-channel signals passage 2022, and for example left channel signals passage 2021 receives heart rate signal; Right-channel signals passage 2022 receives the blood oxygen signal (in of the present invention other embodiments different with present embodiment; Following situation also allows, that is: left channel signals passage and right-channel signals passage also can receive the signal of the human body physiological parameter of identical type or kind), microprocessor 2020 will represent that the conversion of signals of human body physiological parameter becomes the signal of audio format; Signal through low pass filter 2023 these audio formats is carried out frequency shift keying (Frequency-Shift Keying by the carrier frequency with driving frequency 22.9kHz; FSK) handle, through low pass filter 2023 signal of audio format is sent to COBBAIF 203 again, COBBAIF 203 outputs to exterior terminal with human body physiological parameter.Those skilled in the art can select for use the electronic component that is complementary to obtain output interface circuit 202 under the prerequisite of not paying creative work according to output interface circuit as shown in Figure 4 202, repeat no more at this.In practical application, microprocessor 2020 can adopt microprocessor, DSP, MCU of microprocessor or other models of MSP430 model etc.
Further; The present embodiment medical inspection device also comprises audio connector; One end of audio connector and 203 fixed connections or movable connection of COBBAIF; The other end of audio connector is connected with the COBBAIF of exterior terminal, and wherein, the output impedance of audio connector can be set to 3.6 ohm.Exterior terminal can be for the serial media product of computer, mobile phone, e-book and/or Apple etc., and at present, nearly all exterior terminal all is provided with COBBAIF; So; The present embodiment medical inspection device only need be provided with a COBBAIF 203, just can carry out information communication with various exterior terminals, sends to exterior terminal with the signal that human body physiological parameter is converted to audio format; Highly versatile, compatible high, it is also very simple, quick to operate.
In the present embodiment; Through signal conversion unit the human body physiological parameter that the medical science detection obtains is changed; Signal with the audio format that obtains representing human body physiological parameter; Through audio connector the form of human body physiological parameter through audio signal sent to exterior terminal then; Expanded the function that medical science detecting unit and various exterior terminal carry out information communication, improved the compatibility of carrying out information communication with exterior terminal, the stability when also guaranteeing to transmit human body physiological parameter simultaneously.
Fig. 5 is the structural representation of medical detection system of the present invention.As shown in Figure 5; The present embodiment medical detection system comprises exterior terminal 40 and any one above-mentioned medical inspection device 50; Signal conversion unit 20 in the medical inspection device 50 will represent that the analog signal conversion of human body physiological parameter becomes the signal of audio format; Through audio connector the form of human body physiological parameter through audio signal sent to exterior terminal 40 again, thereby make medical inspection device a plurality of USB interfaces need not be set and the complex circuit that causes, avoid the transfer of data problem of unstable; And the stability of the signal of audio format is strong, versatility is high, is fit to the signal that various different exterior terminals 40 receive the audio format of human body physiological parameter.
It is understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For the one of ordinary skilled in the art, under the situation that does not break away from spirit of the present invention and essence, can make various modification and improvement, these modification also are regarded as protection scope of the present invention with improving.
Claims (10)
1. a medical inspection device is characterized in that, comprising: medical science detecting unit and signal conversion unit;
Said medical science detecting unit is used to detect the analogue signal of expression human body physiological parameter;
Said signal conversion unit is used for the analog signal conversion of expression human body physiological parameter is become the signal of audio format, so that the form of human body physiological parameter through audio signal sent to exterior terminal;
Be electrically connected between said medical science detecting unit and the signal conversion unit.
2. medical inspection device according to claim 1 is characterized in that, said signal conversion unit comprises: adapter circuit, output interface circuit and COBBAIF;
Said adapter circuit is used for the let others have a look at analogue signal of body physiological parameter of his-and-hers watches and carries out rectification, filtering and analog digital conversion, to obtain representing the digital signal of human body physiological parameter;
Said output interface circuit is used for digital signal is converted to the signal of audio format;
Said COBBAIF sends to exterior terminal with the signal of audio format;
The input of said output interface circuit and outfan are electrically connected with said adapter circuit, COBBAIF respectively.
3. medical inspection device according to claim 2 is characterized in that, said adapter circuit comprises:
Transformator, first FET, second FET, the 3rd FET, the 4th FET, Schottky diode, filter capacitor and hold-off diode;
One end of said transformator is connected with the drain electrode of the source electrode of said first FET, the 3rd FET, the grid of second FET, the grid of the 4th FET;
The other end of said transformator is connected with the grid of said first FET, the grid of the 3rd FET, the source electrode of second FET, the drain electrode of the 4th FET;
The input of said Schottky diode is connected with the source electrode of said the 3rd FET, the drain electrode of the 4th FET, and the outfan of said Schottky diode is connected with the input of said hold-off diode;
One end of said filter capacitor is connected between said Schottky diode and the hold-off diode, the other end ground connection of said electric capacity;
The output head grounding of said hold-off diode, the grounded drain of the drain electrode of said first FET, second FET.
4. medical inspection device according to claim 3 is characterized in that, said transformator is a step-up transformer.
5. medical inspection device according to claim 2 is characterized in that, said output interface circuit comprises: left channel signals passage, right-channel signals passage, microprocessor and low pass filter;
Said left channel signals passage and right-channel signals passage are used to receive the signal of expression human body physiological parameter; Said microprocessor becomes the signal of audio format with the conversion of signals of human body physiological parameter, through low pass filter the signal of audio format is sent to COBBAIF;
The input of said microprocessor is connected with said left channel signals passage, right-channel signals passage, and the outfan of said microprocessor is connected with said low pass filter.
6. medical inspection device according to claim 5 is characterized in that, said microprocessor adopts the MSP430 microprocessor.
7. medical inspection device according to claim 2 is characterized in that, said signal conversion unit also comprises: audio connector is used to be connected on the COBBAIF of exterior terminal and with exterior terminal and communicates by letter.
8. medical inspection device according to claim 7 is characterized in that, the output impedance of said audio connector is 3.6 ohm.
9. medical inspection device according to claim 1 is characterized in that, said medical science detecting unit comprises at least a in following:
Heart rate measuring instrument, instrument for measuring blood pressure, blood oxygen detection, pedometer and clinical thermometer.
10. a medical detection system is characterized in that, comprises the arbitrary described medical inspection device of exterior terminal and claim 1-9.
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| CN2012102919721A CN102805614A (en) | 2012-08-16 | 2012-08-16 | Medical detection device and system |
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| CN2012102919721A CN102805614A (en) | 2012-08-16 | 2012-08-16 | Medical detection device and system |
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| CN103239080A (en) * | 2013-04-25 | 2013-08-14 | 无锡市崇安区科技创业服务中心 | Blanket for infant |
| CN103284700A (en) * | 2013-06-17 | 2013-09-11 | 北京康智乐思网络科技有限公司 | Intelligent thermometer and body temperature monitoring system |
| CN104573317A (en) * | 2014-12-01 | 2015-04-29 | 南京信息职业技术学院 | Photoelectric health parameter detector based on audio port |
| CN111281386A (en) * | 2020-03-06 | 2020-06-16 | 芯海科技（深圳）股份有限公司 | Human body impedance detection circuit, chip, device and intelligent equipment |
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