CN114919717A - Underwater search system for fire rescue - Google Patents
Underwater search system for fire rescue Download PDFInfo
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- CN114919717A CN114919717A CN202210586936.1A CN202210586936A CN114919717A CN 114919717 A CN114919717 A CN 114919717A CN 202210586936 A CN202210586936 A CN 202210586936A CN 114919717 A CN114919717 A CN 114919717A
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- Prior art keywords
- laser
- light
- fluorescent powder
- fluorescence
- underwater
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention provides an underwater searching system for fire rescue, which comprises: the fluorescent powder is precoated on the firefighter uniform for the underwater rescue; a laser; the collimating lens is arranged in front of the laser, laser is expanded through the collimating lens, the expanded light irradiates the fluorescent powder, and the fluorescent powder excites fluorescence; the optical filter filters out the expanded beam light and enables the fluorescence to be highly transmitted; and the photoelectric detector is arranged behind the optical filter and is used for capturing and positioning the light entering the photoelectric detector. The invention can be excited by laser to emit fluorescence by coating fluorescent powder on the firefighter uniform in advance, and can be captured by the photoelectric detector to position the firefighter, and the laser is expanded by the collimating lens to enlarge the irradiation area, so that the light filter can filter out the reflected expanded beam light, only the fluorescence is highly transmitted, and a large amount of background information is filtered out.
Description
Technical Field
The invention belongs to the technical field of fire rescue, and particularly relates to an underwater searching system for fire rescue.
Background
In real life, various disasters occur at all times due to negligence or natural factors of people. In order to reduce material loss and casualties, the society has an increasing demand for emergency rescue. However, disasters are often reluctant and often present a life hazard to firefighters fighting in the first line.
The fire fighters are reluctantly sacrificed to rescue drowned masses, the proportion of the number of the firefighters in the water area rescue to the total number of the firefighters in the rescue is increased year by year in 4 years from 2016 to 2019, particularly in 2019, the occupation ratio is up to 45.5%, and how to avoid the fire fighters from casualties during the search and rescue operation of water area accidents is a problem that fire rescue teams need to think and study.
At present, in the rescue operation in a water area, if a fireman meets water and makes a trouble, equipment based on a sonar technology is mainly adopted. The device is not only bulky and complex to use, but also can image other objects, thereby obtaining a great deal of 'useless' background information and influencing the rescue efficiency of firemen.
Disclosure of Invention
Accordingly, the present invention is directed to an underwater searching system for fire rescue, which alleviates the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an underwater search system for fire rescue for searching for a fire fighter in an underwater distress, comprising: a phosphor precoated on a firefighter's skirt; a laser that excites laser light; the collimating lens is arranged in front of the laser, a single beam of laser is changed into a plurality of beam expanding light beams through the collimating lens, the beam expanding light irradiates the fluorescent powder, and the fluorescent powder excites fluorescence; the light filter filters out the beam expanding light and enables the fluorescence to be highly transmitted; and the photoelectric detector is arranged behind the optical filter and is used for capturing and positioning the light entering the photoelectric detector.
Furthermore, the searching system also comprises a Y-shaped optical fiber, one side of the Y-shaped optical fiber comprises a first end and a second end, and the other side of the Y-shaped optical fiber comprises a third end; the laser is arranged at the first end, enters the Y-shaped optical fiber from the first end and emits out from the third end; the collimating lens is arranged at the third end, and the laser emitted by the third end is changed into the beam expanding light through the collimating lens and is transmitted to a front area until the laser irradiates the fluorescent powder to excite the fluorescent light; the fluorescence and the reflected beam expanding light enter the Y-shaped optical fiber from the third end and are emitted from the second end; the optical filter is arranged at the second end and is used for filtering the expanded beam light and transmitting the fluorescence at a high speed.
Furthermore, the searching system further comprises an imaging lens, the imaging lens is arranged in front of the photoelectric detector, and the imaging lens images the light which enters the photoelectric detector.
Further, the imaging lens is arranged behind the optical filter.
Further, the imaging lens is arranged in front of the optical filter.
Further, the fluorescent powder is a water-quenching-resistant excitation/emission dual-high-penetrability fluorescent paint.
Further, the laser is a semiconductor laser or a semiconductor pump laser, the working mode is a pulse mode, and the laser excited by the laser is blue light.
Compared with the prior art, the underwater searching system for fire rescue provided by the invention has the following advantages:
1. the invention can be used for positioning the firefighter by coating the fluorescent powder on the firefighter uniform in advance, so that the firefighter uniform can be excited to emit fluorescence by laser and captured by the photoelectric detector, the occupied size is small, the convenience and the high efficiency are realized, in addition, the spot-shaped single-beam laser is expanded by the collimating lens, the irradiation area is enlarged, the searching efficiency is improved, in addition, the optical filter can filter the reflected expanded beam light, only the fluorescence is subjected to high transmission, so a large amount of background information is filtered, and the positioning efficiency is improved.
2. The Y-shaped optical fiber is used for replacing a space optical path, so that the optical path can be controlled, the Y-shaped optical fiber is softer, the emission direction of beam expanding light can be directly changed by changing the direction of the third end, and complicated relative position calculation when the space optical path is used is omitted.
3. The invention images the transmitted fluorescence through the imaging lens, so that the information visualization is more obvious.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram illustrating an underwater search system for fire rescue according to the present invention;
fig. 2 is a schematic structural diagram of a Y-shaped optical fiber according to the present invention.
Description of reference numerals:
1-fluorescent powder; 2-a laser; 3-a collimating lens; 4-an optical filter; 5-a photodetector; 6-Y shaped optical fiber; 7-an imaging lens; 8-a first end; 9-a second end; 10-a third end; 11-laser; 12-beam expanding light; 13-fluorescence.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through elements within two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-2, an underwater search system for fire rescue for searching for a fire fighter in underwater distress, comprising: the fluorescent powder 1 is precoated on the firefighter uniform for the underwater rescue; a laser 2, the laser 2 exciting a laser 11; the collimating lens 3 is arranged in front of the laser 2, a single beam of the laser 11 passes through the collimating lens 3 to be converted into a plurality of expanded beam light 12, the expanded beam light 12 irradiates the fluorescent powder 1, and the fluorescent powder 1 excites fluorescence 13; the optical filter 4 filters the expanded beam light 12 and enables the fluorescence 13 to be highly transmitted; and the photoelectric detector 5 is arranged behind the optical filter 4, and the photoelectric detector 5 captures and positions light entering the photoelectric detector 5.
More preferably, the search system further comprises a Y-shaped optical fiber 6, one side of the Y-shaped optical fiber 6 comprises a first end 8 and a second end 9, and the other side comprises a third end 10; the laser 2 is arranged at the first end 8, and the laser 11 enters the Y-shaped optical fiber 6 from the first end 8 and is emitted from the third end 10; the collimating lens 3 is arranged at the third end 10, and the laser light 11 emitted from the third end 10 passes through the collimating lens 3 to be changed into the beam expanding light 12 and is transmitted to the front area until the beam expanding light is irradiated on the fluorescent powder 1, so that the fluorescent light 13 is excited; the fluorescence 13 and the reflected beam expanding light 12 enter the Y-shaped optical fiber 6 from the third end 10 and are emitted from the second end 9; the optical filter 4 is arranged at the second end 9, and is used for filtering the expanded beam light 12 and transmitting the fluorescence 13 highly.
More preferably, the searching system further comprises an imaging lens 7, the imaging lens 7 is arranged in front of the photodetector 5, and the imaging lens 7 images the light which enters.
More preferably, the imaging lens 7 is disposed behind the filter 4.
More preferably, the imaging lens 7 is provided in front of the filter 4.
More preferably, the phosphor 1 is a water-quenching resistant excitation/emission dual high-penetration fluorescent 13 coating.
More preferably, the laser 2 is a semiconductor laser 2 or a semiconductor pump laser 2, the working mode is a pulse mode, and the laser 11 excited by the laser is blue light.
According to the invention, the fluorescent powder 1 is coated on the firefighter uniform in advance, so that the firefighter uniform can be excited to emit the fluorescent light 13 by the laser 11 and is captured by the photoelectric detector 5, the positioning is carried out on the firefighter, the convenience and the high efficiency are realized, the laser 11 at each point is converted into the expanded beam light by the collimating lens 3, the irradiation area is enlarged, the searching efficiency is improved, in addition, the light filter 4 can filter the reflected expanded beam light 12, and only the fluorescent light 13 is highly transmitted, so that a large amount of background information is filtered, and the positioning efficiency is improved.
According to the invention, the Y-shaped optical fiber 6 is used for replacing a spatial light path, so that the light path can be controlled, the Y-shaped optical fiber 6 is softer, the emission direction of the beam expansion light 12 can be directly changed by changing the direction of the third end 10, and complicated relative position calculation in the process of using the spatial light path is omitted.
The invention carries out imaging processing on the transmitted fluorescence 13 through the imaging lens 7, so that the information visualization is more obvious.
In addition, the fluorescent powder 1 can be coated on rescue tools of firemen, and only needs to be carried by the firemen; the fluorescent powder 1 is waterproof, and the excited fluorescent light 13 is green light and has high transmittance. The photodetector 5 is a conventional one, and may be a surface detector, a point detector, a photomultiplier tube, an avalanche diode, or the like. The system can also expand the use scene, and when a fireman launches water, the system can be used for real-time positioning to prevent the fireman from running water for a long time to meet danger.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An underwater search system for fire rescue for searching for a fireman in an underwater distress, comprising:
the fluorescent powder is precoated on the firefighter uniform for the underwater rescue;
a laser that excites laser light;
the collimating lens is arranged in front of the laser, the laser is changed into expanded beam light through the collimating lens, the expanded beam light irradiates the fluorescent powder, and the fluorescent powder excites fluorescence;
the optical filter filters out the expanded beam light and enables the fluorescence to be highly transmitted;
and the photoelectric detector is arranged behind the optical filter and is used for capturing and positioning the light entering the photoelectric detector.
2. An underwater search system for fire rescue as recited in claim 1, wherein: the searching system further comprises a Y-shaped optical fiber, one side of the Y-shaped optical fiber comprises a first end and a second end, and the other side of the Y-shaped optical fiber comprises a third end;
the laser is arranged at the first end, enters the Y-shaped optical fiber from the first end and emits out from the third end;
the collimating lens is arranged at the third end, and the laser emitted by the third end is changed into the beam expanding light through the collimating lens and is transmitted to a front area until the laser irradiates the fluorescent powder to excite the fluorescent light;
the fluorescence and the reflected expanded beam light enter the Y-shaped optical fiber from the third end and are emitted from the second end;
the optical filter is arranged at the second end, filters the beam expanding light and transmits the fluorescence at a high degree.
3. An underwater search system for fire rescue as claimed in claim 1 or 2, wherein: the searching system further comprises an imaging lens, the imaging lens is arranged in front of the photoelectric detector, and the imaging lens images the light which enters the photoelectric detector.
4. An underwater search system for fire rescue as recited in claim 3, wherein: the imaging lens is arranged behind the optical filter.
5. An underwater search system for fire rescue as claimed in claim 3, wherein: the imaging lens is arranged in front of the optical filter.
6. An underwater search system for fire rescue as claimed in claim 1, wherein: the fluorescent powder is water-quenching-resistant excitation/emission dual-high-penetrability fluorescent paint.
7. An underwater search system for fire rescue as recited in claim 1, wherein: the laser is a semiconductor laser or a semiconductor pump laser, the working mode is a pulse mode, and the laser excited by the laser is blue light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586936.1A CN114919717A (en) | 2022-05-26 | 2022-05-26 | Underwater search system for fire rescue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586936.1A CN114919717A (en) | 2022-05-26 | 2022-05-26 | Underwater search system for fire rescue |
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| Publication Number | Publication Date |
|---|---|
| CN114919717A true CN114919717A (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210586936.1A Pending CN114919717A (en) | 2022-05-26 | 2022-05-26 | Underwater search system for fire rescue |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082584A (en) * | 2007-06-28 | 2007-12-05 | 大连海事大学 | Optical fiber biological sensor |
| CN101278323A (en) * | 2005-07-06 | 2008-10-01 | 寻踪有限公司 | A system and method for locating one or more persons |
| CN103385698A (en) * | 2012-08-09 | 2013-11-13 | 中国科学院苏州纳米技术与纳米仿生研究所 | Fluorescence imaging system and application thereof |
| CN203786311U (en) * | 2014-03-06 | 2014-08-20 | 江苏北方湖光光电有限公司 | Day and night photoelectric transparent window detection system |
| CN109164583A (en) * | 2018-11-07 | 2019-01-08 | 深圳珑璟光电技术有限公司 | A kind of underwater AR device |
| KR101982248B1 (en) * | 2018-04-25 | 2019-05-24 | 강병환 | Distress prevention system and distress prevention method using the system |
| CN110398750A (en) * | 2019-09-03 | 2019-11-01 | 中智科仪（北京）科技有限公司 | A kind of Underwater Target Detection with Laser system based on gate single photon camera |
| CN114296100A (en) * | 2021-12-01 | 2022-04-08 | 武汉华中天纬测控有限公司 | Common-aperture underwater optical system |
-
2022
- 2022-05-26 CN CN202210586936.1A patent/CN114919717A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278323A (en) * | 2005-07-06 | 2008-10-01 | 寻踪有限公司 | A system and method for locating one or more persons |
| CN101082584A (en) * | 2007-06-28 | 2007-12-05 | 大连海事大学 | Optical fiber biological sensor |
| CN103385698A (en) * | 2012-08-09 | 2013-11-13 | 中国科学院苏州纳米技术与纳米仿生研究所 | Fluorescence imaging system and application thereof |
| CN203786311U (en) * | 2014-03-06 | 2014-08-20 | 江苏北方湖光光电有限公司 | Day and night photoelectric transparent window detection system |
| KR101982248B1 (en) * | 2018-04-25 | 2019-05-24 | 강병환 | Distress prevention system and distress prevention method using the system |
| CN109164583A (en) * | 2018-11-07 | 2019-01-08 | 深圳珑璟光电技术有限公司 | A kind of underwater AR device |
| CN110398750A (en) * | 2019-09-03 | 2019-11-01 | 中智科仪（北京）科技有限公司 | A kind of Underwater Target Detection with Laser system based on gate single photon camera |
| CN114296100A (en) * | 2021-12-01 | 2022-04-08 | 武汉华中天纬测控有限公司 | Common-aperture underwater optical system |
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