CN102389311A - Multi-stage dimmable digital pulse oximetry and using method thereof - Google Patents
Multi-stage dimmable digital pulse oximetry and using method thereof Download PDFInfo
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- CN102389311A CN102389311A CN2011102019066A CN201110201906A CN102389311A CN 102389311 A CN102389311 A CN 102389311A CN 2011102019066 A CN2011102019066 A CN 2011102019066A CN 201110201906 A CN201110201906 A CN 201110201906A CN 102389311 A CN102389311 A CN 102389311A
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Abstract
The invention discloses a multi-stage dimmable digital pulse oximetry and a using method thereof, and relates to the technical field of medical equipment. The oximetry comprises a singlechip, a current-limiting resistance regulating circuit, a photosensitive tube and a light emitting tube, wherein the current-limiting resistance regulating circuit is connected with the singlechip and the light emitting tube, and is used for regulating the light intensity of the light emitting tube according to a control instruction of the singlechip; the light emitting tube is used for alternatively emitting two beams according to the light intensity; the photosensitive tube is connected with the singlechip, and is used for receiving transmission light after the two beams pass through a living body, converting the transmission light into a digital signal, and transmitting the digital signal to the singlechip; and the singlechip is used for receiving the digital signal, and transmitting the control instruction to the current-limiting resistance regulating circuit according to the digital signal, or calculating to obtain blood oxygen data. According to the oximetry, the measurement range of the oximetry is fundamentally enlarged by multi-stage regulation to the light intensity of the light emitting tube.
Description
Technical field
The present invention relates to the Medical Equipment technical field, particularly a kind of digital pulse blood oxygen appearance and method for using thereof of multistage light modulation.
Background technology
The luminous intensity of the luminous tube of existing blood oxygen appearance is immutable, and it is widely different to carry out the tested life entity (such as child's finger and adult finger) that oximetry data measures.The luminous intensity of supposing luminous tube is certain, and middle life entity is different, and one is child's finger, and diameter is very little, and another is adult's finger, and diameter is very big.Like this, the light difference that life entity is crossed in transmission is very big, and the light intensity difference that photosensitive tube receives is very big, and the intensity difference of digital signal that sends to single-chip microcomputer after the conversion is very big; If two life entity difference are enough big, must cause the intensity of the wherein set of number signal that single-chip microcomputer receives to exceed effective range.Like this, same machine just can not be tested this two types of fingers.
As if at present, the luminous intensity of the luminous tube of part blood oxygen appearance can change to people sensation, but actual it just prolonged fluorescent lifetime through software.Because the luminous intensity of luminous tube is not fundamentally adjusted in this improvement, so very little for enlarging the measuring range image.
Summary of the invention
The technical problem that (one) will solve
The technical problem that the present invention will solve is: how a kind of digital pulse blood oxygen appearance and method for using thereof of multistage light modulation are provided, to enlarge the measuring range of blood oxygen appearance.
(2) technical scheme
For solving the problems of the technologies described above, the present invention provides a kind of digital pulse blood oxygen appearance of multistage light modulation, and it comprises: single-chip microcomputer, current-limiting resistance regulating circuit, photosensitive tube and luminous tube.
Said current-limiting resistance regulating circuit 200 connects said single-chip microcomputer 100 and luminous tube 500, is used for regulating according to the control instruction of said single-chip microcomputer 100 luminous intensity of said luminous tube 500;
Said luminous tube 500 is used for alternately sending two-beam according to said luminous intensity;
Said photosensitive tube 400 connects said single-chip microcomputer 100, is used to receive said two-beam through the transillumination after the life entity, and sends to said single-chip microcomputer 100 after converting said transillumination into digital signal;
Said single-chip microcomputer 100 is used to receive said digital signal, and sends said control instruction according to said digital signal and give said current-limiting resistance regulating circuit 200, perhaps calculates oximetry data.
Preferably, said current-limiting resistance regulating circuit 200 comprises the current-limiting resistance 201 that can regulate resistance value, and said current-limiting resistance 201 is connected with said luminous tube 500.
Preferably, said oximetry data comprises: blood oxygen levels, pulse frequency value, pulse rod figure, pulse wave and PI value.
Preferably; Said blood oxygen appearance also comprises luminous tube control circuit 300; Said luminous tube control circuit 300 connects said single-chip microcomputer 100 and luminous tube 500, is used for controlling according to the control signal of said single-chip microcomputer 100 sequence of light and the glow frequency of said luminous tube 500.
The present invention also provides a kind of method for using of digital pulse blood oxygen appearance of described multistage light modulation, and it comprises step:
S100: luminous tube control circuit control luminous tube emitting incident light, photosensitive tube receive said incident illumination through the transillumination behind the life entity, and send to said single-chip microcomputer after converting said transillumination into digital signal;
S200: said single-chip microcomputer receives said digital signal, and whether the intensity of judging said digital signal in preset range, if, calculate execution in step S600 behind the oximetry data according to said digital signal, otherwise, execution in step S300;
S300: whether the intensity of judging said digital signal surpasses predetermined upper limit value, if, execution in step S400, otherwise execution in step S500;
S400: whether the resistance of judging current-limiting resistance can transfer greatly, if, carry out said step S100 after transferring the resistance of big said current-limiting resistance, otherwise, execution in step S600 after the prompting error message;
S500: whether the resistance of judging said current-limiting resistance can be turned down, if, carry out said step S100 after turning the resistance of said current-limiting resistance down, otherwise, execution in step S600 after the prompting error message;
S600: judge whether to continue to measure, if, carry out said step S100, otherwise, finish to measure.
Preferably, before said step S100, also comprise step S000: the single-chip microcomputer initialization, the resistance of setting said current-limiting resistance is an initial value.
Preferably, among the said step S100, said luminous tube control circuit control luminous tube replaces red-emitting and infrared light as said incident illumination according to certain glow frequency and sequence of light.
Preferably, said certain glow frequency is 120Hz.
Preferably, said step S200 specifically comprises step:
S201: said single-chip microcomputer receives said digital signal, and whether the intensity of judging said digital signal in preset range, if, execution in step S202, otherwise, execution in step S300;
S202: section at the fixed time, repeatedly gather said digital signal, calculate oximetry data, execution in step S600 according to the result who repeatedly gathers.
Preferably, said predetermined amount of time is 6 seconds to 8 seconds.
(3) beneficial effect
The digital pulse blood oxygen appearance and the method for using thereof of a kind of multistage light modulation of the present invention; Through in the luminous tube circuit, setting up current-limiting resistance; And adjust the resistance of current-limiting resistance in real time according to the signal intensity of photosensitive tube collection; And then realize multistage adjusting, thereby in the measuring range that has fundamentally enlarged blood oxygen appearance to the luminous tube luminous intensity.
Description of drawings
Fig. 1 is the structural representation of the digital pulse blood oxygen appearance of the described a kind of multistage light modulation of the embodiment of the invention;
Fig. 2 is the method for using flow chart of the digital pulse blood oxygen appearance of the said a kind of multistage light modulation of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Fig. 1 is the structural representation of the digital pulse blood oxygen appearance of the described a kind of multistage light modulation of the embodiment of the invention.As shown in Figure 1, the digital pulse blood oxygen appearance of the described a kind of multistage light modulation of the embodiment of the invention comprises: single-chip microcomputer 100, current-limiting resistance regulating circuit 200, luminous tube control circuit 300, photosensitive tube 400 and luminous tube 500.
Said current-limiting resistance regulating circuit 200 connects said single-chip microcomputer 100 and luminous tube 500, is used for regulating according to the control instruction of said single-chip microcomputer 100 luminous intensity of said luminous tube 500.Said current-limiting resistance regulating circuit 200 comprises the current-limiting resistance 201 that can regulate resistance value, and said current-limiting resistance 201 is connected with said luminous tube 500.Like this,, can change current value through said luminous tube 500 through regulating the resistance of said current-limiting resistance 201, and then the luminous intensity of regulating said luminous tube 500.
Said luminous tube control circuit 300 connects said single-chip microcomputer 100 and luminous tube 500, is used for controlling according to the control signal of said single-chip microcomputer 100 sequence of light and the glow frequency of said luminous tube 500.
Said luminous tube 500 is used for alternately sending HONGGUANG and infrared two-beam according to said luminous intensity, sequence of light and glow frequency.
Said photosensitive tube 400 connects said single-chip microcomputer 100, is used to receive said HONGGUANG and infrared two-beam through the transillumination after the life entity, and sends to said single-chip microcomputer 100 after converting said transillumination into digital signal.
Said single-chip microcomputer 100 is used to receive said digital signal, and sends said control instruction according to said digital signal and give said current-limiting resistance regulating circuit 200, perhaps calculates oximetry data.Said oximetry data comprises: blood oxygen levels, pulse frequency value, PI value, pulse rod figure and pulse wave.
Fig. 2 is the method for using flow chart of the digital pulse blood oxygen appearance of the said a kind of multistage light modulation of the embodiment of the invention.As shown in Figure 2, said method comprises step:
S000: the single-chip microcomputer initialization, the resistance of setting said current-limiting resistance is an initial value.Said initial value is the resistance that is applicable to the current-limiting resistance of measuring most of normal person's finger tips, and when circuit voltage was 3 volts, said initial value was generally 20 Europe.
S100: luminous tube control circuit control luminous tube replaces red-emitting and infrared light as incident illumination according to certain glow frequency and sequence of light; Photosensitive tube receives said incident illumination through the transillumination behind the life entity, and sends to said single-chip microcomputer after converting said transillumination into digital signal.Said certain glow frequency is 120hz.
S200: said single-chip microcomputer receives said digital signal, and whether the intensity of judging said digital signal in preset range, if, calculate execution in step S600 behind the oximetry data according to said digital signal, otherwise, execution in step S300.
Said digital signal is obtained through after the analog digital conversion by said transillumination; The intensity of said digital signal is generally with the HONGGUANG frequency demarcating after the analog digital conversion; The said HONGGUANG frequency that receives when single-chip microcomputer thinks that the intensity of said digital signal is in preset range between the 80000Hz to 296296Hz the time.In order to improve the accuracy of judgement degree, also can be simultaneously with reference to the infrared light frequency after the analog digital conversion.
Said step S200 specifically comprises:
Step S201: said single-chip microcomputer receives said digital signal, and whether the intensity of judging said digital signal in preset range, if, execution in step S202, otherwise, execution in step S300;
Step S202: in 6 seconds to 8 second time, repeatedly gather said digital signal, calculate oximetry data, execution in step S600 according to the result who repeatedly gathers.
S300: whether the intensity of judging said digital signal surpasses predetermined upper limit value, if, execution in step S400, otherwise execution in step S500.
S400: whether the resistance of judging current-limiting resistance can transfer greatly, if, carry out said step S100 after transferring the resistance of big said current-limiting resistance, otherwise, execution in step S600 after the prompting error message.
S500: whether the resistance of judging said current-limiting resistance can be turned down, if, carry out said step S100 after turning the resistance of said current-limiting resistance down, otherwise, execution in step S600 after the prompting error message.
Among said step S400 and the S500,, can transfer big or turn down according to certain step-length (such as 5 Europe), or regulate according to preset particular value to the adjusting of the resistance of said current-limiting resistance.In the present embodiment, said current-limiting resistance is regulated according to preset particular value, and said preset particular value is followed successively by 5.1 Europe, 20 Europe, 49.9 Europe and 100 Europe.
S600: judge whether to continue to measure, if, carry out said step S100, otherwise, finish to measure.
The digital pulse blood oxygen appearance and the method for using thereof of the described a kind of multistage light modulation of the embodiment of the invention; Through in the luminous tube circuit, setting up current-limiting resistance; And adjust the resistance of current-limiting resistance in real time according to the signal intensity of photosensitive tube collection; And then realize multistage adjusting, thereby in the measuring range that has fundamentally enlarged blood oxygen appearance to the luminous tube luminous intensity.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. the digital pulse blood oxygen appearance of a multistage light modulation is characterized in that, comprising: single-chip microcomputer (100), current-limiting resistance regulating circuit (200), photosensitive tube (400) and luminous tube (500);
Said current-limiting resistance regulating circuit (200) connects said single-chip microcomputer (100) and luminous tube (500), is used for the luminous intensity of regulating said luminous tube (500) according to the control instruction of said single-chip microcomputer (100);
Said luminous tube (500) is used for alternately sending two-beam according to said luminous intensity;
Said photosensitive tube (400) connects said single-chip microcomputer (100), is used to receive said two-beam through the transillumination after the life entity, and sends to said single-chip microcomputer (100) after converting said transillumination into digital signal;
Said single-chip microcomputer (100) is used to receive said digital signal, and sends said control instruction according to said digital signal and give said current-limiting resistance regulating circuit (200), perhaps calculates oximetry data.
2. blood oxygen appearance as claimed in claim 1 is characterized in that, said current-limiting resistance regulating circuit (200) comprises the current-limiting resistance (201) that can regulate resistance value, and said current-limiting resistance (201) is connected with said luminous tube (500).
3. blood oxygen appearance as claimed in claim 1 is characterized in that said oximetry data comprises: blood oxygen levels, pulse frequency value, pulse rod figure, pulse wave and PI value.
4. blood oxygen appearance as claimed in claim 1; It is characterized in that; Said blood oxygen appearance also comprises luminous tube control circuit (300); Said luminous tube control circuit (300) connects said single-chip microcomputer (100) and luminous tube (500), is used for controlling according to the control signal of said single-chip microcomputer (100) sequence of light and the glow frequency of said luminous tube (500).
5. like the method for using of the digital pulse blood oxygen appearance of the described multistage light modulation of one of claim 1 to 4, it is characterized in that, comprise step:
S100: luminous tube control circuit control luminous tube emitting incident light, photosensitive tube receive said incident illumination through the transillumination behind the life entity, and send to said single-chip microcomputer after converting said transillumination into digital signal;
S200: said single-chip microcomputer receives said digital signal, and whether the intensity of judging said digital signal in preset range, if, calculate execution in step S600 behind the oximetry data according to said digital signal, otherwise, execution in step S300;
S300: whether the intensity of judging said digital signal surpasses predetermined upper limit value, if, execution in step S400, otherwise execution in step S500;
S400: whether the resistance of judging current-limiting resistance can transfer greatly, if, carry out said step S100 after transferring the resistance of big said current-limiting resistance, otherwise, execution in step S600 after the prompting error message;
S500: whether the resistance of judging said current-limiting resistance can be turned down, if, carry out said step S100 after turning the resistance of said current-limiting resistance down, otherwise, execution in step S600 after the prompting error message;
S600: judge whether to continue to measure, if, carry out said step S100, otherwise, finish to measure.
6. method as claimed in claim 5 is characterized in that, before said step S100, also comprise step S000: the single-chip microcomputer initialization, the resistance of setting said current-limiting resistance is an initial value.
7. method as claimed in claim 6 is characterized in that, among the said step S100, said luminous tube control circuit control luminous tube replaces red-emitting and infrared light as said incident illumination according to certain glow frequency and sequence of light.
8. method as claimed in claim 7 is characterized in that, said certain glow frequency is 120Hz.
9. method as claimed in claim 5 is characterized in that, said step S200 specifically comprises step:
S201: said single-chip microcomputer receives said digital signal, and whether the intensity of judging said digital signal in preset range, if, execution in step S202, otherwise, execution in step S300;
S202: in the section, repeatedly gather said digital signal at the fixed time, calculate oximetry data, execution in step S600 according to the result who repeatedly gathers.
10. method as claimed in claim 9 is characterized in that, said predetermined amount of time is 6 seconds to 8 seconds.
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| CN 201110201906 CN102389311B (en) | 2011-07-19 | 2011-07-19 | Multi-stage dimmable digital pulse oximetry and using method thereof |
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| CN 201110201906 CN102389311B (en) | 2011-07-19 | 2011-07-19 | Multi-stage dimmable digital pulse oximetry and using method thereof |
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Cited By (9)
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| WO2015078266A1 (en) * | 2013-11-28 | 2015-06-04 | Tencent Technology (Shenzhen) Company Limited | Apparatus, system and method for measuring pulse |
| CN105615895A (en) * | 2015-12-25 | 2016-06-01 | 广州视源电子科技股份有限公司 | Light adjusting method and system for oxyhemoglobin saturation measuring instrument, measuring instrument and measuring method |
| CN107550498A (en) * | 2016-06-30 | 2018-01-09 | 北京超思电子技术有限责任公司 | A kind of blood oxygen measuring device and its measuring method |
| CN107773250A (en) * | 2017-11-22 | 2018-03-09 | 江苏康尚生物医疗科技有限公司 | A kind of photoelectric sphyg BOLD contrast quick dimming controlling method of automatic growth control |
| CN108498074A (en) * | 2018-01-24 | 2018-09-07 | 西安交通大学 | The more light intensity near infrared light measurement methods of long-time micro energy lose |
| CN109512403A (en) * | 2018-11-05 | 2019-03-26 | 北京招通致晟科技有限公司 | A kind of finger tip photoplethysmographic detection method, equipment and system |
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| CN112234693A (en) * | 2020-08-28 | 2021-01-15 | 珠海格力电器股份有限公司 | Bus charging control device, driver and bus charging control method thereof |
| CN113693593A (en) * | 2020-12-22 | 2021-11-26 | 深圳市柯林健康医疗有限公司 | Parameter determination method and device of blood oxygen detection equipment and controller |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015078266A1 (en) * | 2013-11-28 | 2015-06-04 | Tencent Technology (Shenzhen) Company Limited | Apparatus, system and method for measuring pulse |
| CN105615895A (en) * | 2015-12-25 | 2016-06-01 | 广州视源电子科技股份有限公司 | Light adjusting method and system for oxyhemoglobin saturation measuring instrument, measuring instrument and measuring method |
| CN107550498A (en) * | 2016-06-30 | 2018-01-09 | 北京超思电子技术有限责任公司 | A kind of blood oxygen measuring device and its measuring method |
| CN107550498B (en) * | 2016-06-30 | 2024-02-09 | 北京超思电子技术有限责任公司 | Blood oxygen measuring device and measuring method thereof |
| CN107773250A (en) * | 2017-11-22 | 2018-03-09 | 江苏康尚生物医疗科技有限公司 | A kind of photoelectric sphyg BOLD contrast quick dimming controlling method of automatic growth control |
| CN108498074A (en) * | 2018-01-24 | 2018-09-07 | 西安交通大学 | The more light intensity near infrared light measurement methods of long-time micro energy lose |
| CN108498074B (en) * | 2018-01-24 | 2019-01-29 | 西安交通大学 | The more light intensity near infrared light measurement methods of long-time micro energy lose |
| CN110301888A (en) * | 2018-03-27 | 2019-10-08 | 佳能株式会社 | Measuring device and computer readable storage medium |
| CN109512403A (en) * | 2018-11-05 | 2019-03-26 | 北京招通致晟科技有限公司 | A kind of finger tip photoplethysmographic detection method, equipment and system |
| CN109512403B (en) * | 2018-11-05 | 2021-11-26 | 北京招通致晟科技有限公司 | Finger tip photoelectric volume pulse wave detection method, device and system |
| CN112234693A (en) * | 2020-08-28 | 2021-01-15 | 珠海格力电器股份有限公司 | Bus charging control device, driver and bus charging control method thereof |
| CN113693593A (en) * | 2020-12-22 | 2021-11-26 | 深圳市柯林健康医疗有限公司 | Parameter determination method and device of blood oxygen detection equipment and controller |
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Address after: Qin 066004 West Street in Hebei province Qinhuangdao City Economic and Technological Development Zone No. 112 Patentee after: Kangtai medical system (Qinhuangdao) Limited by Share Ltd Address before: Qin 066004 West Street in Hebei province Qinhuangdao City Economic and Technological Development Zone No. 112 Patentee before: Qinhuangdao Contec Medical Systems Co.,Ltd. |