CN104224193A - Non-invasive blood sugar detection instrument - Google Patents
Non-invasive blood sugar detection instrument Download PDFInfo
- Publication number
- CN104224193A CN104224193A CN201410461923.7A CN201410461923A CN104224193A CN 104224193 A CN104224193 A CN 104224193A CN 201410461923 A CN201410461923 A CN 201410461923A CN 104224193 A CN104224193 A CN 104224193A
- Authority
- CN
- China
- Prior art keywords
- transistor
- module
- circuit
- connects
- former limit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a non-invasive blood sugar detection instrument, which comprises a detection circuit and a power supply circuit, wherein the detection circuit comprises a DSP (digital signal processing) chip, a reset module, a USB (universal serial bus) module, a liquid crystal display module, a combined press key module, a serial port module, a FLASH module, an AD (analog-digital) correcting module, a hardware filtering module and a sensor module. The non-invasive blood sugar detection instrument has the advantages that the structure of the detection circuit is simplified, the size of the detection instrument is effectively reduced, the power supply circuit ensures that the detection instrument can obtains stable power supply signals, further, the precision and the stability of the detection can be improved, and meanwhile, the power consumption is effectively reduced.
Description
Technical field
The present invention relates to technical field of biomedical detection, is a kind of non-invasive blood-sugar detecting instrument, and for carrying out the method and apparatus that Woundless blood sugar detects fast.
Background technology
Diabetes are a kind of common metabolism endocrinopathyes, are principal character with hyperglycemia, are a kind of worldwide pandemics.In recent years, along with the raising of Chinese society expanding economy and Living consumption, and the acceleration of aged tendency of population, the sickness rate of diabetes raises year by year, and about there are 5,000 ten thousand diabeticss in the current whole nation, and also increases with the speed of 0.1% every year.Diabetes harm is huge, and mainly its serious complication, as cardiovascular disease, kidney, oculopathy, neuropathy and diabetic foot etc.The way that current diabetes are not effectively effected a radical cure, controlling blood glucose is only therapeutic scheme.Carry out blood sugar test in time, for controlling diabetes, preventing the generation of complication, the quality of life tool improving diabetics is of great significance.And blood is got in the acupuncture treatment of existing detection method many needs, bring very big inconvenience to patient, a kind of noninvasive dynamics monitoring equipment is needed in market badly.
Summary of the invention
The object of this invention is to provide a kind of non-invasive blood-sugar detecting instrument, realize Woundless blood sugar and detect fast.
To achieve these goals, the invention provides a kind of non-invasive blood-sugar detecting instrument, it is characterized in that: comprise testing circuit and power circuit.
Testing circuit comprises dsp chip, reseting module, USB module, LCD MODULE, combination button module, serial port module, FLASH module, AD correction module, hardware filtering module and sensor assembly, the ten road signal parallels collected are transferred to testing circuit plate by sensor, first two-way dual wavelength light attenuation signal is amplified and intensity modulation circuit by two-stage by testing circuit, realize sensor light source strength, the control of display device, make measuring amount in the reasonable scope, instruct finger rationally to place simultaneously, thus it is suitable to obtain brightness, the pulse wave in human fingers signal that standing time is suitable, all the other eight tunnel temperature, the voltage signal of humidity sensor is through hardware dividing potential drop, thus control its input voltage value be less than 3V with ensure meet the requirement of DSP port input voltage range, and carry out the denoising of analogue filter circuit power frequency, signal is after above-mentioned process, and enter DSP by 16 Channel 12-Bit A/D converters of dsp chip with 1000Hz frequency sampling, final blood glucose measurement is shown by LCD MODULE.
Power circuit comprises a former limit circuit, and it comprises an Input voltage terminal and an input reference voltage end, and in order to receive an input voltage, an input filter capacitor is connected between this Input voltage terminal and input reference voltage end; One secondary circuit, it comprises an output voltage terminal and an output reference voltage end, in order to export an output voltage; And a changer, it is connected between this former limit circuit and this secondary circuit; Wherein this changer comprises this former limit circuit of a former limit winding switching, and this former limit winding comprises first end and the second end; One vice-side winding connects this secondary circuit, and it comprises first end and the second end; And one secondary drive winding, it comprises first end and the second end; This former limit circuit comprises a first transistor, a transistor seconds, one first diode and one second diode; Wherein the drain electrode of this first transistor connects Input voltage terminal, and the source electrode of this first transistor connects the first end of this former limit winding; Second end of former limit winding connects the drain electrode of transistor seconds, and the source electrode of this transistor seconds connects input reference voltage end; The anode of this first diode connects this input reference voltage end, and the negative electrode of this first diode connects the first end of this former limit winding; The anode of this second diode connects the second end of this former limit winding, and the negative electrode of this second diode connects Input voltage terminal; The base stage of this first transistor, transistor seconds receives first, second control signal respectively; This secondary circuit comprises a third transistor, one the 4th transistor, a switch, an energy storage inductor, and an output filter capacitor; Wherein the drain electrode of this third transistor connects the second end of this secondary circuit, this third transistor is connected with this output reference power source end with the source electrode of the 4th transistor, the drain electrode of the 4th transistor is connected with the second end of switch, and the first end of switch connects the first end of vice-side winding; The base stage of this third transistor is connected to via one first resistance the first end that secondary drives winding; The base stage of this third transistor be connected the second resistance between source electrode; The base stage of the 4th transistor is connected to the second end that secondary drives winding through the 4th resistance pole; The base stage of the 4th transistor be connected the 3rd resistance between source electrode; Between the drain electrode that this energy storage inductor is connected to the 4th transistor and output voltage terminal; This output filter capacitor is connected between this output voltage terminal and this output reference voltage end; The control end of this switch receives the 3rd control signal.
The invention has the advantages that: this detector simplifies the structure of testing circuit, effectively reduce the volume of detector, power circuit ensure that detector can obtain stable power supply signal, and then improves the precision and stability detected, and effectively reduces power consumption simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of testing circuit of the present invention;
Fig. 2 is the circuit diagram of power circuit of the present invention.
Detailed description of the invention:
Below in conjunction with specific embodiments and the drawings the invention will be further described book, but should not limit the scope of the invention with this.
With reference to figure 1, the testing circuit of non-invasive blood-sugar detecting instrument comprises dsp chip, reseting module, USB module, LCD MODULE, combination button module, serial port module, FLASH module, AD correction module, hardware filtering module and sensor assembly, the ten road signal parallels collected are transferred to testing circuit plate by sensor, first two-way dual wavelength light attenuation signal is amplified and intensity modulation circuit by two-stage by testing circuit, realize sensor light source strength, the control of display device, make measuring amount in the reasonable scope, instruct finger rationally to place simultaneously, thus it is suitable to obtain brightness, the pulse wave in human fingers signal that standing time is suitable, all the other eight tunnel temperature, the voltage signal of humidity sensor is through hardware dividing potential drop, thus control its input voltage value be less than 3V with ensure meet the requirement of DSP port input voltage range, and carry out the denoising of analogue filter circuit power frequency, signal is after above-mentioned process, and enter DSP by 16 Channel 12-Bit A/D converters of dsp chip with 1000Hz frequency sampling, final blood glucose measurement is shown by LCD MODULE.
With reference to figure 2, the power circuit of non-invasive blood-sugar detecting instrument comprises a former limit circuit, it comprises an an Input voltage terminal Vi and input reference voltage end Vri, and in order to receive an input voltage, an input filter capacitor Ci is connected between this Input voltage terminal Vi and input reference voltage end Vri; One secondary circuit, it comprises an an output voltage terminal Vo and output reference voltage end Vro, in order to export an output voltage; And a changer T2, it is connected between this former limit circuit and this secondary circuit; Wherein this changer comprises a former limit winding Np and connects this former limit circuit, and this former limit winding comprises first end and the second end; One vice-side winding Ns connects this secondary circuit, and it comprises first end and the second end; And one secondary drive winding Nd, it comprises first end and the second end; This former limit circuit comprises a first transistor Q1, a transistor seconds Q2, one first diode D1 and one second diode D2; Wherein the drain electrode of this first transistor Q1 connects Input voltage terminal Vi, and the source electrode of this first transistor Q1 connects the first end of this former limit winding; Second end of former limit winding connects the drain electrode of transistor seconds Q2, and the source electrode of this transistor seconds Q2 connects input reference voltage end Vri; The anode of this first diode D1 connects this input reference voltage end, and the negative electrode of this first diode D1 connects the first end of this former limit winding; The anode of this second diode D2 connects the second end of this former limit winding, and the negative electrode of this second diode D2 connects Input voltage terminal; The base stage of this first transistor Q1, transistor seconds Q2 receives first, second control signal respectively; This secondary circuit comprises a third transistor SRf, one the 4th transistor SRw, an interrupteur SW, an energy storage inductor Lo, and an output filter capacitor Co; Wherein the drain electrode of this third transistor SRf connects second end of this secondary circuit Ns, this third transistor SRf is connected with this output reference power source end Vro with the source electrode of the 4th transistor SRw, the drain electrode of the 4th transistor SRw is connected with the second end of interrupteur SW, and the first end of interrupteur SW connects the first end of vice-side winding Ns; The base stage of this third transistor is connected to via one first resistance R1 the first end that secondary drives winding Nd; The base stage of this third transistor be connected the second resistance R2 between source electrode; The base stage of the 4th transistor SRw is connected to the second end that secondary drives winding Nd through the 4th resistance R4 pole; The base stage of the 4th transistor be connected the 3rd resistance R3 between source electrode; Between the drain electrode that this energy storage inductor Lo is connected to the 4th transistor and output voltage terminal; This output filter capacitor Co is connected between this output voltage terminal and this output reference voltage end; The control end of this interrupteur SW receives the 3rd control signal.
Claims (2)
1. a non-invasive blood-sugar detecting instrument, is characterized in that: comprise testing circuit and power circuit, and described testing circuit comprises hardware filtering module and sensor assembly.
2. non-invasive blood-sugar detecting instrument according to claim 1, is characterized in that:
Described testing circuit comprises dsp chip, reseting module, USB module, LCD MODULE, combination button module, serial port module, FLASH module, AD correction module, hardware filtering module and sensor assembly, the ten road signal parallels collected are transferred to testing circuit plate by sensor, first two-way dual wavelength light attenuation signal is amplified and intensity modulation circuit by two-stage by testing circuit, realize sensor light source strength, the control of display device, make measuring amount in the reasonable scope, instruct finger rationally to place simultaneously, thus it is suitable to obtain brightness, the pulse wave in human fingers signal that standing time is suitable, all the other eight tunnel temperature, the voltage signal of humidity sensor is through hardware dividing potential drop, thus control its input voltage value to ensure to meet the requirement of DSP port input voltage range, and carry out the denoising of analogue filter circuit power frequency, signal is after above-mentioned process, and enter DSP by 16 Channel 12-Bit A/D converters of dsp chip with 1000Hz frequency sampling, final blood glucose measurement is shown by LCD MODULE,
Described power circuit comprises a former limit circuit, and it comprises an Input voltage terminal and an input reference voltage end, and in order to receive an input voltage, an input filter capacitor is connected between this Input voltage terminal and input reference voltage end; One secondary circuit, it comprises an output voltage terminal and an output reference voltage end, in order to export an output voltage; And a changer, it is connected between this former limit circuit and this secondary circuit; Wherein this changer comprises this former limit circuit of a former limit winding switching, and this former limit winding comprises first end and the second end; One vice-side winding connects this secondary circuit, and it comprises first end and the second end; And one secondary drive winding, it comprises first end and the second end; This former limit circuit comprises a first transistor, a transistor seconds, one first diode and one second diode; Wherein the drain electrode of this first transistor connects Input voltage terminal, and the source electrode of this first transistor connects the first end of this former limit winding; Second end of former limit winding connects the drain electrode of transistor seconds, and the source electrode of this transistor seconds connects input reference voltage end; The anode of this first diode connects this input reference voltage end, and the negative electrode of this first diode connects the first end of this former limit winding; The anode of this second diode connects the second end of this former limit winding, and the negative electrode of this second diode connects Input voltage terminal; The base stage of this first transistor, transistor seconds receives first, second control signal respectively; This secondary circuit comprises a third transistor, one the 4th transistor, a switch, an energy storage inductor, and an output filter capacitor; Wherein the drain electrode of this third transistor connects the second end of this secondary circuit, this third transistor is connected with this output reference power source end with the source electrode of the 4th transistor, the drain electrode of the 4th transistor is connected with the second end of switch, and the first end of switch connects the first end of vice-side winding; The base stage of this third transistor is connected to via one first resistance the first end that secondary drives winding; The base stage of this third transistor be connected the second resistance between source electrode; The base stage of the 4th transistor is connected to the second end that secondary drives winding through the 4th resistance pole; The base stage of the 4th transistor be connected the 3rd resistance between source electrode; Between the drain electrode that this energy storage inductor is connected to the 4th transistor and output voltage terminal; This output filter capacitor is connected between this output voltage terminal and this output reference voltage end; The control end of this switch receives the 3rd control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461923.7A CN104224193B (en) | 2014-09-12 | 2014-09-12 | A kind of non-invasive blood-sugar detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461923.7A CN104224193B (en) | 2014-09-12 | 2014-09-12 | A kind of non-invasive blood-sugar detecting instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104224193A true CN104224193A (en) | 2014-12-24 |
| CN104224193B CN104224193B (en) | 2016-05-18 |
Family
ID=52213737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410461923.7A Expired - Fee Related CN104224193B (en) | 2014-09-12 | 2014-09-12 | A kind of non-invasive blood-sugar detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104224193B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193423A (en) * | 2015-09-25 | 2015-12-30 | 北京大学深圳研究生院 | Non-invasive blood glucose detection method, device and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050187442A1 (en) * | 2004-02-24 | 2005-08-25 | Ok-Kyung Cho | Blood sugar level measuring apparatus |
| US20050192493A1 (en) * | 2001-03-21 | 2005-09-01 | Minformed, L.L.C. | Non-invasive blood analyte measuring system and method utilizing optical absorption |
| CN101138500A (en) * | 2007-08-29 | 2008-03-12 | 中南大学 | Non-invasive blood-sugar detecting instrument based on conservation of energy |
| CN102772213A (en) * | 2012-07-20 | 2012-11-14 | 天津市亚鼎科技有限公司 | Multifunctional blood sugar detection system |
| CN203220371U (en) * | 2013-04-16 | 2013-10-02 | 成都天宇创新科技有限公司 | Wireless portable noninvasive blood glucose detector |
-
2014
- 2014-09-12 CN CN201410461923.7A patent/CN104224193B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050192493A1 (en) * | 2001-03-21 | 2005-09-01 | Minformed, L.L.C. | Non-invasive blood analyte measuring system and method utilizing optical absorption |
| US20050187442A1 (en) * | 2004-02-24 | 2005-08-25 | Ok-Kyung Cho | Blood sugar level measuring apparatus |
| CN101138500A (en) * | 2007-08-29 | 2008-03-12 | 中南大学 | Non-invasive blood-sugar detecting instrument based on conservation of energy |
| CN102772213A (en) * | 2012-07-20 | 2012-11-14 | 天津市亚鼎科技有限公司 | Multifunctional blood sugar detection system |
| CN203220371U (en) * | 2013-04-16 | 2013-10-02 | 成都天宇创新科技有限公司 | Wireless portable noninvasive blood glucose detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193423A (en) * | 2015-09-25 | 2015-12-30 | 北京大学深圳研究生院 | Non-invasive blood glucose detection method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104224193B (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100342825C (en) | Non-wound rapid blood sugar detecting method and its detecting instrument | |
| AU2005220794A1 (en) | Methods and devices for non-invasively measuring quantitative information of substances in living organisms | |
| WO2018214297A1 (en) | Portable device and method for non-invasive blood glucose detection | |
| CN1297229C (en) | Non-invasive detection device of pulse impedance spectrum blood sugar or other biood component and its detection method | |
| CN104055525A (en) | Implantable type low-consumption wireless blood glucose monitor | |
| CN113842142A (en) | Wearable continuous blood glucose detection device and method | |
| CN103472010A (en) | Diabetes detection device | |
| CN104224193A (en) | Non-invasive blood sugar detection instrument | |
| CN103393417B (en) | Finger pulse measuring circuit | |
| CN202981987U (en) | Pulse measuring instrument based on single chip microcomputer | |
| CN103876749A (en) | Built-in spectroscopy rapid blood glucose detection system | |
| CN215415184U (en) | Electrochemical sensor detection circuit, device and system | |
| CN104983430B (en) | The blood-sugar detecting instrument of non-intrusion type | |
| CN201859137U (en) | Portable intelligent blood glucose meter | |
| CN103829934A (en) | Electronic sphygmomanometer based on single-chip microcomputer | |
| CN202699148U (en) | Blood sugar detector | |
| CN101968450B (en) | Embedded porphyrin sensor array-based saliva sugar and urine sugar detector | |
| CN204318765U (en) | A kind of infrared spectrum technology non-invasive blood-sugar detecting instrument | |
| CN204813834U (en) | Medical treatment pulse detecting system based on wireless transmission | |
| CN204091992U (en) | Non-invasive blood sugar instrument | |
| CN110638467A (en) | Method and system for detecting blood sugar of experimental animal | |
| CN102579254B (en) | Pen type acupuncture pressing device | |
| CN109758163B (en) | Noninvasive blood glucose detection system | |
| CN204520662U (en) | A kind of special chip being applied to blood pressure measurement | |
| CN202620190U (en) | Non-intrusive-type pressing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20170912 |