CN104873185A - System and method for detecting skin burn injury based on near-infrared laser diffusion spectrum detection - Google Patents

System and method for detecting skin burn injury based on near-infrared laser diffusion spectrum detection Download PDF

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Publication number
CN104873185A
CN104873185A CN201510314640.4A CN201510314640A CN104873185A CN 104873185 A CN104873185 A CN 104873185A CN 201510314640 A CN201510314640 A CN 201510314640A CN 104873185 A CN104873185 A CN 104873185A
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China
Prior art keywords
optical fiber
light source
laser
chip microcomputer
infrared laser
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Pending
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CN201510314640.4A
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Chinese (zh)
Inventor
苗鹏
张亿光
冯诗涵
刘颖
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Priority to CN201510314640.4A priority Critical patent/CN104873185A/en
Publication of CN104873185A publication Critical patent/CN104873185A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a system and a method for detecting skin burn injury based on near-infrared laser diffusion spectrum detection. The system comprises a multi-channel optical signal acquisition optical fiber, photosensitive avalanche diodes, a data acquisition card, a computer, a single chip microcomputer and a laser light source, wherein the computer is connected with the data acquisition card and the single chip microcomputer respectively; the single chip microcomputer is connected with the laser light source; the data acquisition card is connected with multiple photosensitive avalanche diodes; the multi-channel optical signal acquisition optical fiber is taken as a probe for signal acquisition, one optical fiber is arranged in the middle of the probe and connected with the laser light source, and a circle of optical fiber bundles which are uniformly distributed are arranged on the periphery of the probe and connected to the multiple photosensitive avalanche diodes respectively. According to the system and the method, multi-channel detecting pulse laser is analyzed according to the diffusion spectrum detection principle, information about the blood stream speed, depth and direction is acquired, and accordingly, the burned degree of a human body can be detected.

Description

Based on skin burn detection system and the method for near-infrared laser diffusion spectral detection
Technical field
The present invention relates to diffusion spectral detection to test the speed, spread the advanced technology such as spectral detection blood flow direction and blood flow depth survey, be specifically related to a kind of skin burn detection system based on near-infrared laser diffusion spectral detection and method, belong to medical signals detection field.
Background technology
The principle of current diffusion spectrum detection technique is ripe, but the degree of depth of diffusion spectral detection blood flow and direction also do not have ripe technology.
At present, burn qualification is a very difficult thing, needs the experience by doctor.But burn degree is very crucial to the anaphase of burn patient, different doctor's qualification results may have difference.Target of the present invention is exactly the science that speed, the degree of depth and directional information by utilizing blood flow improves burn qualification.
Summary of the invention
Problem to be solved by this invention utilizes diffusion spectral detection to test the speed, spread the advanced technology such as spectral detection blood flow direction and blood flow depth survey, provides a kind of speed of blood flow, the degree of depth and directional information of utilizing to carry out laser-Doppler burn degree identification systems and the method for scientific measurement to burn degree.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of skin burn detection system based on near-infrared laser diffusion spectral detection, comprise multichannel light signals collecting optical fiber, photosensitive avalanche diode, data collecting card, computer, single-chip microcomputer, LASER Light Source, described computer is connection data capture card and single-chip microcomputer respectively, described single-chip microcomputer connects LASER Light Source, described data collecting card connects multiple photosensitive avalanche diode, described multichannel light signals collecting optical fiber is as the probe of signals collecting, probe middle part is an optical fiber, connect LASER Light Source, probe is around the equally distributed fibre bundle of a circle, be connected respectively on multiple photosensitive avalanche diode.
Described photosensitive avalanche diode model is the photosensitive avalanche diode S10341-05 of shore pine, described data collecting card model is USB2000A, described single-chip microcomputer model is STC15F2K60S2.
Described LASER Light Source is pulsed, and the wavelength of its light sent is 808nm.
The wavelength of corresponding LASER Light Source, adopts the photosensitive avalanche diode of 808nm wave band.
Based on a skin burn detection method for near-infrared laser diffusion spectral detection, adopt the above-mentioned skin burn detection system based on near-infrared laser diffusion spectral detection to carry out burn qualification, authentication step is as follows:
A. computer controls the pulse signal of single chip microcomputers transmit Transistor-Transistor Logic level;
B. the output of pulse signal of the Transistor-Transistor Logic level of single chip microcomputers transmit is on LASER Light Source, makes it launch pulse laser;
C. pulse laser is input to the SMIS passage of multichannel light signals collecting optical fiber, irradiates detected material surface;
What D. detected material reflexed to multichannel light signals collecting optical fiber a part for pulse laser makes a circle on equally distributed fibre bundle in week;
E. the multipath reflection pulsed laser signal all equally distributed fibre bundles that makes a circle of multichannel light signals collecting optical fiber received is converted to analog electrical signal by photosensitive avalanche diode optical signal;
F. the multi-channel analog signal of telecommunication is converted to digital electric signal by data collecting card;
G. the multi-path digital signal of telecommunication is stored in computer, utilizes the program in computer to process it, finally utilizes the spectrum information of the principle analysis multi-path digital signal of telecommunication of diffusion spectral detection to draw qualification result.
In described steps A, the Transistor-Transistor Logic level pulse frequency of single chip microcomputers transmit is 80kHz.
In described step C and D, multichannel light signals collecting fiber distance detected material surface 1mm.
Compared with prior art, the present invention has following outstanding substantive distinguishing features and significant advantage:
The skin burn detection system that the present invention is based on near-infrared laser diffusion spectral detection is a set of system being suitable for the qualification of human body burn degree.It utilizes, and advanced diffusion spectral detection tests the speed, the burn degree of technology to human body such as spectral detection blood flow direction and blood flow depth survey that spread is identified.Have multichannel scanning, multiple spot detects; In conjunction with DCS, more information can be drawn; Structure is simple, maneuverable advantage.
Accompanying drawing explanation
Fig. 1 is the primary structure schematic diagram of the skin burn detection system based on near-infrared laser diffusion spectral detection of the present invention.
Fig. 2 is the detailed construction schematic diagram of multichannel light signals collecting optical fiber.
Detailed description of the invention
Details are as follows by reference to the accompanying drawings for the preferred embodiments of the present invention:
As depicted in figs. 1 and 2, a kind of skin burn detection system based on near-infrared laser diffusion spectral detection, comprise multichannel light signals collecting optical fiber 1, photosensitive avalanche diode 2, data collecting card 3, computer 4, single-chip microcomputer 5, LASER Light Source 6, described computer 4 is connection data capture card 3 and single-chip microcomputer 5 respectively, described single-chip microcomputer 5 connects LASER Light Source 6, described data collecting card 3 connects multiple photosensitive avalanche diode 2, described multichannel light signals collecting optical fiber 1 is as the probe of signals collecting, probe middle part is an optical fiber, connect LASER Light Source 6, probe is around the equally distributed fibre bundle of a circle, be connected respectively on multiple photosensitive avalanche diode 2.
In the present embodiment, described photosensitive avalanche diode 2 model is the photosensitive avalanche diode S10341-05 of shore pine, described data collecting card 3 model is USB2000A, described single-chip microcomputer 5 model is STC15F2K60S2.
Described LASER Light Source 6 is pulsed, and the wavelength of its light sent is 808nm.
The wavelength of corresponding LASER Light Source 6, adopts the photosensitive avalanche diode 2 of 808nm wave band.
Based on a skin burn detection method for near-infrared laser diffusion spectral detection, adopt the above-mentioned skin burn detection system based on near-infrared laser diffusion spectral detection to carry out burn qualification, authentication step is as follows:
A. computer 4 control single chip computer 5 launches the pulse signal of Transistor-Transistor Logic level;
B. the output of pulse signal of the Transistor-Transistor Logic level of single-chip microcomputer 5 transmitting is on LASER Light Source 6, makes it launch pulse laser;
C. pulse laser is input to the SMIS passage of multichannel light signals collecting optical fiber 1, irradiates detected material surface;
What D. detected material reflexed to multichannel light signals collecting optical fiber 1 a part for pulse laser makes a circle on equally distributed fibre bundle in week;
E. the multichannel light signals collecting optical fiber multipath reflection pulsed laser signal that equally distributed fibre bundle receives that makes a circle for 1 week is converted to analog electrical signal by photosensitive avalanche diode 2 optical signal;
F. the multi-channel analog signal of telecommunication is converted to digital electric signal by data collecting card 3;
G. the multi-path digital signal of telecommunication is stored in computer 4, utilizes the program in computer 4 to process it, finally utilizes the spectrum information of the principle analysis multi-path digital signal of telecommunication of diffusion spectral detection to draw qualification result.
In described steps A, the Transistor-Transistor Logic level pulse frequency that single-chip microcomputer 5 is launched is 80kHz.
In described step C and D, multichannel light signals collecting optical fiber 1 is apart from detected material surface 1mm.
In described step B, the wavelength of LASER Light Source is 808nm.
In described step F, have employed 8 data acquisition channels, 8 passages acquired signal simultaneously.
In described step G, fast fourier transform algorithm and method of correlation is utilized to carry out interpretation of result.

Claims (7)

1. the skin burn detection system based on near-infrared laser diffusion spectral detection, comprise multichannel light signals collecting optical fiber (1), photosensitive avalanche diode (2), data collecting card (3), computer (4), single-chip microcomputer (5), LASER Light Source (6), it is characterized in that: described computer (4) is connection data capture card (3) and single-chip microcomputer (5) respectively, described single-chip microcomputer (5) connects LASER Light Source (6), described data collecting card (3) connects multiple photosensitive avalanche diode (2), described multichannel light signals collecting optical fiber (1) is as the probe of signals collecting, probe middle part is an optical fiber, connect LASER Light Source (6), probe is around the equally distributed fibre bundle of a circle, be connected respectively on multiple photosensitive avalanche diode (2).
2. the skin burn detection system based on near-infrared laser diffusion spectral detection according to claim 1, it is characterized in that, described photosensitive avalanche diode (2) model is that shore pine photosensitive avalanche diode S10341-05, described data collecting card (3) model are USB2000A, described single-chip microcomputer (5) model is STC15F2K60S2.
3. the skin burn detection system based on near-infrared laser diffusion spectral detection according to claim 1, it is characterized in that, described LASER Light Source (6) is pulsed, and the wavelength of its light sent is 808nm.
4. the skin burn detection system based on near-infrared laser diffusion spectral detection according to claim 1, is characterized in that, the wavelength of corresponding LASER Light Source (6), adopts the photosensitive avalanche diode (2) of 808nm wave band.
5., based on a skin burn detection method for near-infrared laser diffusion spectral detection, adopt the skin burn detection system based on near-infrared laser diffusion spectral detection according to claim 1 to carry out burn qualification, it is characterized in that, authentication step is as follows:
A. computer (4) control single chip computer (5) launches the pulse signal of Transistor-Transistor Logic level;
B. the output of pulse signal of Transistor-Transistor Logic level launched of single-chip microcomputer (5) is on LASER Light Source (6), makes it launch pulse laser;
C. pulse laser is input to the SMIS passage of multichannel light signals collecting optical fiber (1), irradiates detected material surface;
What D. detected material reflexed to multichannel light signals collecting optical fiber (1) a part for pulse laser makes a circle on equally distributed fibre bundle in week;
E. the multipath reflection pulsed laser signal that equally distributed fibre bundle receives that makes a circle in multichannel light signals collecting optical fiber (1) week is converted to analog electrical signal by photosensitive avalanche diode (2) optical signal;
F. the multi-channel analog signal of telecommunication is converted to digital electric signal by data collecting card (3);
G. the multi-path digital signal of telecommunication is stored in computer (4), utilizes the program in computer (4) to process it, finally utilizes the spectrum information of the principle analysis multi-path digital signal of telecommunication of diffusion spectral detection to draw qualification result.
6. the skin burn detection method based on near-infrared laser diffusion spectral detection according to claim 5, it is characterized in that, in described steps A, the Transistor-Transistor Logic level pulse frequency that single-chip microcomputer (5) is launched is 80kHz.
7. the skin burn detection method based on near-infrared laser diffusion spectral detection according to claim 5, is characterized in that, in described step C and D, and multichannel light signals collecting optical fiber (1) distance detected material surface 1mm.
CN201510314640.4A 2015-06-10 2015-06-10 System and method for detecting skin burn injury based on near-infrared laser diffusion spectrum detection Pending CN104873185A (en)

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CN108095705A (en) * 2017-11-28 2018-06-01 广州医仕博体育科技有限公司 Intelligent muscular fatigue eliminates system and method
CN108670240A (en) * 2018-06-15 2018-10-19 中国工程物理研究院流体物理研究所 The device and method of measurement biological tissue blood volume, blood oxygen, blood flow and oxygen metabolism
CN109875572A (en) * 2018-11-09 2019-06-14 唐庆圆 A kind of physiological parameter measurement mechanism and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108095705A (en) * 2017-11-28 2018-06-01 广州医仕博体育科技有限公司 Intelligent muscular fatigue eliminates system and method
CN108670240A (en) * 2018-06-15 2018-10-19 中国工程物理研究院流体物理研究所 The device and method of measurement biological tissue blood volume, blood oxygen, blood flow and oxygen metabolism
CN108670240B (en) * 2018-06-15 2023-11-28 中国工程物理研究院流体物理研究所 Device and method for measuring blood volume, blood oxygen, blood flow and oxygen metabolism of biological tissue
CN109875572A (en) * 2018-11-09 2019-06-14 唐庆圆 A kind of physiological parameter measurement mechanism and method

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Application publication date: 20150902