CN107657080A - A kind of deep sea lighting lamp design method and design system based on free form surface - Google Patents
A kind of deep sea lighting lamp design method and design system based on free form surface Download PDFInfo
- Publication number
- CN107657080A CN107657080A CN201710763318.9A CN201710763318A CN107657080A CN 107657080 A CN107657080 A CN 107657080A CN 201710763318 A CN201710763318 A CN 201710763318A CN 107657080 A CN107657080 A CN 107657080A
- Authority
- CN
- China
- Prior art keywords
- deep
- sea
- surface structure
- lighting lamp
- free form
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Evolutionary Computation (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Deep sea lighting lamp design method and design system provided by the invention based on free form surface, by establishing deep-sea object illumination distribution function, the discrete face type point of light distribution curved surface is calculated further according to the deep-sea object illumination distribution function, B-spline surface fitting is carried out according to the discrete face type point and obtains initial surface structure, and processing is optimized to the initial surface structure and obtains optimizing surface structure and judges whether the optimization surface structure meets lighting requirement, if so, complete deep sea lighting lamp design；If not, repeat the above steps, deep sea lighting lamp design method provided by the invention based on free form surface, the design method of free form surface is applied in deep sea lighting lamp design, more common sphere, aspherical, ellipsoid and hyperboloid have higher design freedom, so that the distribution design that illumination is dark among being formed in target face, edge illumination is bright, it is possible to increase deep-sea shoots the brightness uniformity of picture, while reduces illuminating lamp energy consumption.
Description
Technical field
The present invention relates to a kind of deep-sea optical image technology field, more particularly to the deep-sea based on free form surface is shone in deep-sea
Bright lamp design method and design system.
Background technology
The ocean for occupying ground sphere area 71% is a huge resources bank, and China possesses about 300 as ocean big country
Ten thousand square kilometres of ocean area.Deep-sea optical image technology is as deep-sea mineral exploration and exploitation, deep-sea resources exploration and deep-sea life
Thing, the core support technology of chemical in situ observation, are that China utilizes ocean, develop the important foundation of ocean.
Deep-sea optical imaging system is a kind of active optical imaging system.Deep-sea illuminator is deep-sea optical imagery system
The important component of system.Generally the 0.01% of the illumination deficiency water surface illumination of underwater less than 200 meters visible rays, and
Environment in deep-sea is even more very dark.Therefore deep-sea illuminates the headlight as manned underwater vehicle " driving at night ", is to present
The premise of deep-sea optical imagery." ends of the earth number " that the Chinese Academy of Sciences is researched and developed at deep-sea, " cape number " lander, " original position experiment number " lifting
A set of or a few set deep-sea illuminators, and its product are equipped with device and " 4500 meters ", " flood dragon number " manned underwater vehicle
All by external import.Want there must be autonomous research and development ability without being bound by people, China in technology.
In the prior art, powerful deep sea lighting lamp is typically equipped with submersible, by irradiate seabed coral reef,
Rock, cold spring, hydrothermal solution etc., reflected light information is formed, is shot by deep-sea imaging system.But on the one hand due to deep-sea
There are a large amount of the reason for absorbing in middle light so that Illumination Distribution of the illuminating lamp in target is unreasonable, in detection in imaging system
Response it is uneven, ultimately cause that deep-sea image edge is dark, middle bright phenomenon；On the other hand due to the illumination of general lighting lamp
Scope is mostly circular distribution, and imaging region is then rectangle, so causes the excess waste of the energy, reduces the effect of deep ocean work
Rate.The distribution design and the design of rectangular illumination field that illumination is dark among thus being formed in target face, edge illumination is bright be for
This those skilled in the art technical problem urgently to be resolved hurrily.
The content of the invention
Have in view of that, to improve the brightness uniformity of deep-sea picture and reducing illuminating lamp energy consumption, there is provided one kind is based on certainly
By the deep sea lighting lamp design method of curved surface.
To achieve the above object, following proposal is used in the present invention：
A kind of deep sea lighting lamp design method based on free form surface, comprises the steps：
Establish deep-sea object illumination distribution function；
The discrete face type point of light distribution curved surface is calculated according to the deep-sea object illumination distribution function；
B-spline surface fitting is carried out according to the discrete face type point and obtains initial surface structure；
Processing is optimized to the initial surface structure to obtain optimizing surface structure；And
Judge whether the optimization surface structure meets lighting requirement, if so, completing deep sea lighting lamp design；If it is not, weight
Multiple above-mentioned steps.
In some preferred embodiments, wherein, in the step of establishing deep-sea object illumination distribution function,
Specially：According to the absorption of light, attenuation characteristic equation I=I in deep-sea0e-(α(λ)+β(λ))L, determine different working condition
Under, distribution function that the illumination of target face changes with light angle, locus and detection range, wherein λ-optical wavelength, I-
Light intensity after overdamping, I0The original light intensity of-decay, the absorption coefficient of α (λ)-light, the scattering coefficient of β (λ)-light, L- decay road
Footpath.
In some preferred embodiments, wherein, light distribution curved surface is being calculated according to the deep-sea object illumination distribution function
Discrete face type point the step of in, be specially：According to the deep-sea object illumination distribution function, light source and the energy of target are established
Mesh mapping model, determine the discrete face type point distribution of light distribution curved surface.
In some preferred embodiments, wherein, obtained just carrying out B-spline surface fitting according to the discrete face type point
In the step of beginning surface structure, it is specially：B-spline surface fitting is carried out according to the discrete face type point of light distribution curved surface, utilizes UG structures
Build the initial surface structure of deep sea lighting lamp.
In some preferred embodiments, wherein, obtain optimization face optimizing processing to the initial surface structure
In the step of type structure, it is specially：
Structure face type majorized function；And
Processing is optimized according to the majorized function to the initial surface structure to obtain optimizing surface structure.
In some preferred embodiments, wherein, in the step of building face type majorized function, it is specially：
The ray tracing that system is illuminated based on Monte Carlo Analogue Method draws the simulation result of Illumination Distribution, passes through meter
The deviation of design of Simulation result and notional result is calculated, face type majorized function is built by variable of face type point.In addition, the present invention also carries
A kind of deep sea lighting lamp design system based on free form surface has been supplied, including：
Illumination Distribution module, for establishing deep-sea object illumination distribution function；
Computing module, for calculating the discrete face type point of light distribution curved surface according to the deep-sea object illumination distribution function；
Fitting module, initial surface structure is obtained for carrying out B-spline surface fitting according to the discrete face type point；
Optimization module, obtain optimizing surface structure for optimizing processing to the initial surface structure；And
Judge module, for judging whether the optimization surface structure meets lighting requirement.
Deep sea lighting lamp design method and design system provided by the invention based on free form surface, by establishing deep-sea mesh
Illumination Distribution function is marked, the discrete face type point of light distribution curved surface is calculated further according to the deep-sea object illumination distribution function, according to institute
State discrete face type point and carry out the initial surface structure of B-spline surface fitting acquisition, and place is optimized to the initial surface structure
Reason obtains optimizing surface structure and judges whether the optimization surface structure meets lighting requirement, if so, completing deep sea lighting lamp
Design；If it is not, repeating the above steps, the deep sea lighting lamp design method provided by the invention based on free form surface will be freely bent
The design method in face is applied in deep sea lighting lamp design, and more common sphere, aspherical, ellipsoid and hyperboloid have higher
Design freedom so that the distribution design that illumination is dark among being formed in target face, edge illumination is bright, it is possible to increase clap at deep-sea
The brightness uniformity of picture is taken the photograph, while reduces illuminating lamp energy consumption.
Brief description of the drawings
The step of Fig. 1 is the deep sea lighting lamp design method based on free form surface of an embodiment provided by the invention is flowed
Cheng Tu.
Fig. 2 is present invention also offers the structural representation of the deep sea lighting lamp design system based on free form surface.
Embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.Given in following embodiments
The preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to described herein
Embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding more thorough and comprehensive to the disclosure.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Referring to Fig. 1, the deep sea lighting lamp design method based on free form surface of an embodiment provided by the invention, bag
Include following step：
Step S110：Establish deep-sea object illumination distribution function；
In embodiment provided by the invention, deep-sea object illumination distribution function is established, is specially：
According to the absorption of light, attenuation characteristic equation I=I in deep-sea0e-(α(λ)+β(λ))L, determine under different working condition, target
The distribution function that the illumination in face changes with light angle, locus and detection range, wherein λ-optical wavelength, I- is through overdamping
Light intensity afterwards, I0The original light intensity of-decay, the absorption coefficient of α (λ)-light, the scattering coefficient of β (λ)-light, L- decay paths.
Step S120：The discrete face type point of light distribution curved surface is calculated according to the deep-sea object illumination distribution function；
In embodiment provided by the invention, according to the deep-sea object illumination distribution function calculate light distribution curved surface from
In the step of dissipating face type point, it is specially：According to the Illumination Distribution of the deep-sea target face, surface of light source and the energy of target face are established
Mesh mapping model, then according to snell law, determine the discrete face type point distribution of light distribution curved surface.
Step S130：B-spline surface fitting is carried out according to the discrete face type point and obtains initial surface structure；
In embodiment provided by the invention, obtained initially carrying out B-spline surface fitting according to the discrete face type point
In the step of surface structure, it is specially：It is fitted to and is matched somebody with somebody by B-spline progress curved surface according to the distribution of the discrete face type point of light distribution curved surface
Light curved surface, the initial surface structure of deep sea lighting lamp light distribution curved surface is generated using UG softwares (Unigraphics NX).
Step S140：Processing is optimized to the initial surface structure to obtain optimizing surface structure；
In embodiment provided by the invention, optimization face type knot is obtained optimizing processing to the initial surface structure
In the step of structure, it is specially：
Structure face type majorized function, in the present embodiment, the light that system is illuminated based on Monte Carlo Analogue Method is chased after
Mark draws the simulation result of Illumination Distribution, by computer sim- ulation design result and the deviation of notional result, using face type point as variable
Structure face type majorized function.
Processing is optimized to the initial surface structure according to the majorized function and obtains final surface structure.
Step S150：Judge whether the optimization surface structure meets lighting requirement, set if so, completing deep sea lighting lamp
Meter；If it is not, repeat the above steps.
It is appreciated that the distribution that illumination is dark, edge illumination is bright among being formed on the optimization surface structure is designed to completely
Sufficient lighting requirement.
Referring to Fig. 2, present invention also offers the deep sea lighting lamp design system based on free form surface, including：
Illumination Distribution module 110, for establishing deep-sea object illumination distribution function；Computing module 120, for according to
Deep-sea object illumination distribution function calculates the discrete face type point of light distribution curved surface；Fitting module 130, for according to the discrete face type
Point carries out B-spline surface fitting and obtains initial surface structure；Optimization module 140, it is excellent for being carried out to the initial surface structure
Change handles to obtain optimization surface structure；And judge module 150, for judging whether the optimization surface structure meets that illumination will
Ask, because its detailed working method has been described in detail foregoing, repeat no more here.
Deep sea lighting lamp design method and design system provided by the invention based on free form surface, lead to
Establishment deep-sea object illumination distribution function is crossed, the discrete face of light distribution curved surface is calculated further according to the deep-sea object illumination distribution function
Type point, B-spline surface fitting is carried out according to the discrete face type point and obtains initial surface structure, and to the initial surface structure
Optimize processing to obtain optimizing surface structure and judge whether the optimization surface structure meets lighting requirement, if so, completing
Deep sea lighting lamp designs；If it is not, repeat the above steps, the deep sea lighting lamp design side provided by the invention based on free form surface
Method, the design method of free form surface is applied in deep sea lighting lamp design, more common sphere, aspherical, ellipsoid and double
Curved surface has higher design freedom so that the distribution design that illumination is dark among being formed in target face, edge illumination is bright, energy
The brightness uniformity of deep-sea shooting picture is enough improved, while reduces illuminating lamp energy consumption.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of deep sea lighting lamp design method based on free form surface, it is characterised in that comprise the steps：
Establish deep-sea object illumination distribution function；
The discrete face type point of light distribution curved surface is calculated according to the deep-sea object illumination distribution function；
B-spline surface fitting is carried out according to the discrete face type point and obtains initial surface structure；
Processing is optimized to the initial surface structure to obtain optimizing surface structure；And
Judge whether the optimization surface structure meets lighting requirement, if so, completing deep sea lighting lamp design；If it is not, on repeating
State step.
2. the deep sea lighting lamp design method according to claim 1 based on free form surface, it is characterised in that wherein,
In the step of establishing deep-sea object illumination distribution function, it is specially：According to the absorption of light, attenuation characteristic equation I=I in deep-sea0e-(α(λ)+β(λ))L, determine under different working condition, the illumination of target face changes with light angle, locus and detection range
Distribution function, wherein λ-optical wavelength, light intensity of the I- after overdamping, I0The original light intensity of-decay, the absorption coefficient of α (λ)-light,
The scattering coefficient of β (λ)-light, L- decay paths.
3. the deep sea lighting lamp design method according to claim 2 based on free form surface, it is characterised in that wherein,
In the step of calculating the discrete face type point of light distribution curved surface according to the deep-sea object illumination distribution function, it is specially：According to described
The Illumination Distribution of deep-sea target face, surface of light source and the energy grid mapping model of target face are established, then according to snell law,
Determine the discrete face type point distribution of light distribution curved surface.
4. the deep sea lighting lamp design method according to claim 3 based on free form surface, it is characterised in that wherein,
Carried out according to the discrete face type point in the step of B-spline surface fitting obtains initial surface structure, be specially：It is bent according to luminous intensity distribution
The discrete face type point in face carries out B-spline surface fitting, and the initial surface structure of deep sea lighting lamp is built using UG.
5. the deep sea lighting lamp design method according to claim 4 based on free form surface, it is characterised in that wherein,
The initial surface structure is optimized in the step of processing obtains optimizing surface structure, is specially：
Structure face type majorized function；And
Processing is optimized according to the majorized function to the initial surface structure to obtain optimizing surface structure.
6. the deep sea lighting lamp design method according to claim 5 based on free form surface, it is characterised in that wherein,
In the step of structure face type majorized function, it is specially：The ray tracing that system is illuminated based on Monte Carlo Analogue Method is drawn
The simulation result of Illumination Distribution, by computer sim- ulation design result and the deviation of notional result, face is built by variable of face type point
Type majorized function.
A kind of 7. deep sea lighting lamp design system based on free form surface, it is characterised in that including：
Illumination Distribution module, for establishing deep-sea object illumination distribution function；
Computing module, for calculating the discrete face type point of light distribution curved surface according to the deep-sea object illumination distribution function；
Fitting module, initial surface structure is obtained for carrying out B-spline surface fitting according to the discrete face type point；
Optimization module, obtain optimizing surface structure for optimizing processing to the initial surface structure；And
Judge module, for judging whether the optimization surface structure meets lighting requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763318.9A CN107657080A (en) | 2017-08-30 | 2017-08-30 | A kind of deep sea lighting lamp design method and design system based on free form surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763318.9A CN107657080A (en) | 2017-08-30 | 2017-08-30 | A kind of deep sea lighting lamp design method and design system based on free form surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107657080A true CN107657080A (en) | 2018-02-02 |
Family
ID=61128793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710763318.9A Pending CN107657080A (en) | 2017-08-30 | 2017-08-30 | A kind of deep sea lighting lamp design method and design system based on free form surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107657080A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828768A (en) * | 2018-05-09 | 2018-11-16 | 中国科学院深海科学与工程研究所 | Lighting source design method and relevant device applied to deep-sea detecting |
| CN113064272A (en) * | 2021-03-04 | 2021-07-02 | 武汉大学 | Optical free-form surface construction method and system under semi-discrete optimal transmission |
| CN113365389A (en) * | 2021-06-15 | 2021-09-07 | 中国科学院深海科学与工程研究所 | Design method and device of deep sea lighting system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996511A (en) * | 2012-12-13 | 2013-03-27 | 清华大学 | CAD (Computer-Aided Design) aided design method of controllable diffused blade profile with curvature continuity |
| WO2013155271A1 (en) * | 2012-04-11 | 2013-10-17 | Pinpoint 3D | Systems and methods for obtaining parameters for a three dimensional model from reflectance data |
-
2017
- 2017-08-30 CN CN201710763318.9A patent/CN107657080A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013155271A1 (en) * | 2012-04-11 | 2013-10-17 | Pinpoint 3D | Systems and methods for obtaining parameters for a three dimensional model from reflectance data |
| CN102996511A (en) * | 2012-12-13 | 2013-03-27 | 清华大学 | CAD (Computer-Aided Design) aided design method of controllable diffused blade profile with curvature continuity |
Non-Patent Citations (3)
| Title |
|---|
| 徐天赐等: "激光水中衰减系数的比较测量法研究", 《光学与光电技术》 * |
| 辛迪: "基于LED的自由曲面照明光学系统设计", 《中国博士学位论文全文数据库 信息科技辑》 * |
| 韩敏: "大尺寸LED光源准直透镜的设计与应用", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828768A (en) * | 2018-05-09 | 2018-11-16 | 中国科学院深海科学与工程研究所 | Lighting source design method and relevant device applied to deep-sea detecting |
| CN113064272A (en) * | 2021-03-04 | 2021-07-02 | 武汉大学 | Optical free-form surface construction method and system under semi-discrete optimal transmission |
| CN113064272B (en) * | 2021-03-04 | 2022-05-17 | 武汉大学 | Optical free-form surface construction method and system under semi-discrete optimal transmission |
| CN113365389A (en) * | 2021-06-15 | 2021-09-07 | 中国科学院深海科学与工程研究所 | Design method and device of deep sea lighting system |
| CN113365389B (en) * | 2021-06-15 | 2022-07-19 | 中国科学院深海科学与工程研究所 | Design method and device of deep sea lighting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107657080A (en) | A kind of deep sea lighting lamp design method and design system based on free form surface | |
| Asadi et al. | Simulation of green roofs and their potential mitigating effects on the urban heat island using an artificial neural network: A case study in Austin, Texas | |
| Oh et al. | Computational analysis on the enhancement of daylight penetration into dimly lit spaces: Light tube vs. fiber optic dish concentrator | |
| CN106793428B (en) | A kind of deep-sea means of illumination and system based on non homogen field | |
| Luginbuhl et al. | From the ground up II: Sky glow and near-ground artificial light propagation in Flagstaff, Arizona | |
| Kota et al. | Historical survey of daylighting calculations methods and their use in energy performance simulations | |
| Lamphar | The emission function of ground-based light sources: State of the art and research challenges | |
| Shen et al. | Design and analysis of a high-intensity LED lighting module for underwater illumination | |
| Azarafza et al. | Evaluation of drought effect on Urmia Lake salinity changes using remote sensing techniques | |
| Luginbuhl et al. | Lighting and astronomy | |
| Netzel et al. | High resolution map of light pollution over Poland | |
| Bjelajac et al. | Artificial light at night as an unrecognized threat to protected areas of Autonomous Province of Vojvodina (North Serbia) | |
| Wang et al. | Comparison of daylight simulation methods for reflected sunlight from curtain walls | |
| Achsani et al. | Studies on Visual Environment Phenomena of Urban Areas: A Systematic Review | |
| Andreychouk | Cultural landscape functions | |
| Haltrin | Absorption and scattering of light in natural waters | |
| Ranjbar et al. | Estimation of environmental capacity of phosphorus in Gorgan Bay, Iran, via a 3D ecological-hydrodynamic model | |
| Tabaka et al. | Landscape Lighting as a Source of Light Pollution-the Effect of the Seasons on this Phenomenon | |
| Chen et al. | Marine environmental status and blue bay remediation in Xiamen | |
| Yilmaz et al. | Measurement and determination of light pollution: case study of Malatya city | |
| Ohuchi et al. | Study on Changes in Ancient City Agoras Using Fractal Analysis—Using Shaded Image to Describe the Formation of Agora in 300 BC, 150 BC, and 100 AD— | |
| Srisuwan | Street lighting design for a traditional city: A case study of Jesi, Italy | |
| Axiak et al. | State of the environment report for Malta 1998 | |
| Sciezor et al. | Light Pollution of the Mountain Areas in Poland/Zanieczyszczenie Swietlne W Obszarach Gorskich W Polsce | |
| Badler et al. | Accurate Soil and Mudbrick BRDF Models for Archaeological Illumination Rendering with Application to Small Finds. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180202 |