CN103968831A - Remote visual navigation method based on laser splicing - Google Patents
Remote visual navigation method based on laser splicing Download PDFInfo
- Publication number
- CN103968831A CN103968831A CN201410224490.3A CN201410224490A CN103968831A CN 103968831 A CN103968831 A CN 103968831A CN 201410224490 A CN201410224490 A CN 201410224490A CN 103968831 A CN103968831 A CN 103968831A
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- China
- Prior art keywords
- laser
- power
- method based
- output
- navigation method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a remote visual navigation method based on laser splicing. The method comprises the following steps: shaping output spots of a single small-power laser into rectangular spots in required distance through a lens or a lens assembly, configuring several small-power lasers with shaping lens or a lens assembly, according to the required power, and finally adjusting an optical platform so that the output spot of each laser coincides within the same range, wherein the several small-power lasers are fixed onto the optical platform rectilinearly. By using the small-power laser replacing a large-power laser, the problem that the lasers meeting the power requirement cannot be found due to high power requirement on the laser by a remote visual navigation system is solved, the problem that the output spots of the large-power laser are poor in quality so as to be difficultly shaped into the rectangular spots meeting the requirement is solved, and the overall laser power can be controlled by directly controlling the small-power laser so as to achieve the purpose of being visible to human eyes under the premise of not harming human eyes within a far distance range, thus realizing the navigation.
Description
Technical field
The present invention relates to a kind of line-of-sight navigation system, particularly a kind of long-range line-of-sight navigation method based on laser joint.
Background technology
Than other light source, laser has better directivity, monochromaticity, coherence and larger output power.Along with progress and the development of modern society, the field of laser application is more and more wider.Visual laser system has a wide range of applications in positioning system and navigational system, as the intelligent cruise robot based on the infrared overall positioning system of class GPS and monocular vision processing and the vehicle-mounted embedded type navigation mark tracker based on omni-directional visual.It is simple that visual laser system has equipment, and cost is low, accurately locates fast, and the advantages such as arrangement is convenient, and extensibility is strong, easy to utilize are installed.
For long-range line-of-sight navigation system, for reaching visual visible in a big way in far distance, the laser power needing is very high.And in the production of reality, manufacturing of powerful visible laser is a difficult problem.For example, for semiconductor visible light laser instrument, the laser instrument of watt level is little, and the poor quality of output facula, is difficult to be shaped into the rectangular light spot that line-of-sight navigation system needs; And because the energy of high power laser output is very high, laser lens easily heating generation deformation under high power laser illumination that shaping is required, affects the beam quality after scioptics.
Summary of the invention
The present invention be directed to the remote problem that line-of-sight navigation exists in a big way, propose a kind of long-range line-of-sight navigation method based on laser joint, met the object that can be in larger distance range neither human eye be damaged, meets again human eye and reach as seen navigation.
Technical scheme of the present invention is: a kind of long-range line-of-sight navigation method based on laser joint, first the output facula scioptics of single low-power laser or lens combination are shaped to the rectangular light spot of required distance, then according to a power demand configurable number low-power laser with shaping lens or lens combination, several low-power lasers are in line and are fixed on optical table, finally regulate optical table, the output facula of each laser instrument is overlapped in same scope.
Described optical table is the optical table of three-dimensional regulation, by the adjusting of optics regulating platform, can regulate level altitude, position, left and right, the angle of pitch, the drift angle, left and right of laser instrument.
Described single low-power laser can be by regulating working current to regulate its output power.
Beneficial effect of the present invention is: the long-range line-of-sight navigation method that the present invention is based on laser joint, adopt low-power laser to substitute high power laser, one has solved long-range line-of-sight navigation system cannot find to laser power requirement is too high the laser instrument problem that meets power requirement, two have solved the output facula poor quality of high power laser, be difficult to its output facula to be shaped to the rectangular light spot meeting the demands, the 3rd, can control total laser power by the switch of direct control low-power laser, it is met can neither damage human eye in larger distance range, meet again the object that human eye reaches navigation as seen.
Brief description of the drawings
Fig. 1 is the long-range line-of-sight navigation principle schematic that the present invention is based on laser joint.
Embodiment
Long-range line-of-sight navigation principle schematic based on laser joint as shown in Figure 1, first the output facula scioptics of single low-power laser or lens combination are shaped to the rectangular light spot of required distance, then two or many low-power lasers (with the required lens of shaping or lens combination) are fixed on optical table, by the adjusting of optical table, the output facula of each laser instrument is overlapped to together as much as possible, thereby the very inaccessible effect of the hot spot light distribution that reaches high power laser, as shown in Figure 1.Switch by direct control low-power laser can be controlled total laser power, makes it meet the object that can be in larger distance range neither human eye be damaged, meets again human eye and reach as seen navigation.
In the time that very near distance only has a laser works, can regulate its output power by the working current that regulates laser instrument, ensure can not damage human eye under the visible prerequisite of human eye.Optical table is the optical table of an optional three-dimensional regulation, optics regulating platform can regulate laser instrument level altitude, position, left and right, the angle of pitch, drift angle, left and right and can low-angle rotary laser so that hot spot can be coincided together with the shape of needs as much as possible.First the adjusting of total laser output power determined by the number of switches of laser instrument, and the number of lasers of unlatching more total laser output power is less, and operating distance is nearer, ensures can not damage human eye under the visible prerequisite of human eye.In the time that very near distance only has a laser works, can regulate its output power by the working current that regulates laser instrument, ensure can not damage human eye under the visible prerequisite of human eye.
Claims (3)
1. the long-range line-of-sight navigation method based on laser joint, it is characterized in that, first the output facula scioptics of single low-power laser or lens combination are shaped to the rectangular light spot of required distance, then according to a power demand configurable number low-power laser with shaping lens or lens combination, several low-power lasers are in line and are fixed on optical table, finally regulate optical table, the output facula of each laser instrument is overlapped in same scope.
2. the long-range line-of-sight navigation method based on laser joint according to claim 1, it is characterized in that, described optical table is the optical table of three-dimensional regulation, by the adjusting of optics regulating platform, can regulate level altitude, position, left and right, the angle of pitch, the drift angle, left and right of laser instrument.
3. the long-range line-of-sight navigation method based on laser joint according to claim 1, is characterized in that, described single low-power laser can be by regulating working current regulate its output power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224490.3A CN103968831A (en) | 2014-05-27 | 2014-05-27 | Remote visual navigation method based on laser splicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224490.3A CN103968831A (en) | 2014-05-27 | 2014-05-27 | Remote visual navigation method based on laser splicing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103968831A true CN103968831A (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224490.3A Pending CN103968831A (en) | 2014-05-27 | 2014-05-27 | Remote visual navigation method based on laser splicing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103968831A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173449A (en) * | 1997-03-29 | 1998-02-18 | 深圳奥沃国际科技发展有限公司 | Laser signalling system for indicating airplane takeoff and landing |
| US20050094154A1 (en) * | 2003-10-30 | 2005-05-05 | Baney Douglas M. | Low power consumption, broad navigability optical mouse |
| CN102506748A (en) * | 2011-10-21 | 2012-06-20 | 李志扬 | Laser-probe-array-based three-dimensional measurement method and device |
-
2014
- 2014-05-27 CN CN201410224490.3A patent/CN103968831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173449A (en) * | 1997-03-29 | 1998-02-18 | 深圳奥沃国际科技发展有限公司 | Laser signalling system for indicating airplane takeoff and landing |
| US20050094154A1 (en) * | 2003-10-30 | 2005-05-05 | Baney Douglas M. | Low power consumption, broad navigability optical mouse |
| CN102506748A (en) * | 2011-10-21 | 2012-06-20 | 李志扬 | Laser-probe-array-based three-dimensional measurement method and device |
Non-Patent Citations (4)
| Title |
|---|
| TORSTEN POSSNER ET AL.: "Micro-optical beam transformation system for high power laser diode bars with efficient brightness conservation", 《SPIE》 * |
| 刘丽莹: "高功率脉冲半导体激光光源的研制", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
| 吴学锋: "基于高功率光纤激光器的光束整形镜研究", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
| 蒋涛: "国外几种新型半导体激光器的研制动态", 《半导体光电》 * |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |