CN204903762U - Optic fibre scanning formula laser radar system - Google Patents
Optic fibre scanning formula laser radar system Download PDFInfo
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- CN204903762U CN204903762U CN201520319734.6U CN201520319734U CN204903762U CN 204903762 U CN204903762 U CN 204903762U CN 201520319734 U CN201520319734 U CN 201520319734U CN 204903762 U CN204903762 U CN 204903762U
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- optical fiber
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Abstract
The utility model relates to an optic fibre scanning formula laser radar system, optic fibre scanning formula laser radar system mainly include laser emitter (1), controller (2), detector (3), optic fibre (4), navigational positioning system and data processing memory system, data processing memory system comprises encoder (6), treater (7), AD converter (8) and data record appearance (12), the navigational positioning system includes antenna (9), IMU (10) and GPS (11), optic fibre (4) are connected with laser emitter (1), controller (2) and detector (3) respectively. The utility model provides an optic fibre scanning formula laser radar system adopts the mode of optic fibre scanning to obtain the signal, can give accurately to obtain ground target reflected signal fast, provides the radar echo data of high accuracy for generating three -dimensional image, obtains the three -dimensional some cloud coordinate data in ground of high accuracy fast.
Description
Technical field
The utility model relates to a kind of optical fiber scan type laser radar system, for accurately measuring Ground Point cloud information, belongs to lidar measurement field.
Background technology
Airborne laser radar utilizes the accurate distance measurement function fast of laser to become automatic measurement technology emerging in recent years, the airborne laser radar of a new generation combines GPS (GlobalPositioningSystem, GPS) and and inertial navigation system (InertialNavigationSystem, INS), possesses high-precision positioning and directing ability, in conjunction with laser ranging and optical scanning technique, the three-dimensional point position that a large amount of and high density is distributed in ground surface can be obtained fast, obtain some cloud data, the application of some cloud data on measuring is set up high precision at present, high-resolution digital surface model.For domestic, the research of laser radar technique is started late, and basis is also weaker.And airborne laser radar system can be subject to the impact of multiple error source, in recent years, airborne laser radar system obtains and develops rapidly, but overall just some are studied qualitatively, and be still be confined to above several main error source to the quantitative predication of each error source, and the combination that the theoretical research of error and actual error correct object is tight not enough.
Utility model content
In order to overcome the deficiencies in the prior art, resolving the problem of prior art, making up the deficiency of existing existing product in the market.
The utility model provides a kind of optical fiber scan type laser radar system, mainly comprise generating laser, controller, detector, optical fiber, navigation positioning system and data processing storage system, described data processing storage system is made up of scrambler, processor, AD converter and datalogger, described navigation positioning system comprises antenna, IMU and GPS, and described optical fiber is connected with generating laser, controller and detector respectively.
Preferably, above-mentioned radar system also comprises motor, and described optical fiber is connected with motor.
Preferably, above-mentioned optical fiber comprises launching fiber array, receives fiber array and central optical fiber.
Preferably, above-mentioned central optical fiber two ends connect launching fiber array respectively and receive fiber array.
Preferably, above-mentioned controller is by AD converter connection handling device.
The optical fiber scan type laser radar system that the utility model provides, the mode of optical fiber scanning is adopted to obtain signal, can give and obtain terrain object reflected signal rapidly and accurately, high-precision radar return data are provided, quick obtaining high-precision Three Dimensional Ground point cloud coordinate data for generating 3-D view.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Hot spot sweep trace ground schematic diagram when Fig. 2 is utility model works.
Reference numeral: 1-generating laser; 2-controller; 3-detector; 4-optical fiber; 5-motor; 6-scrambler; 7-processor; 8-AD converter; 9-antenna; 10-IMU; 11-GPS; 12-datalogger.
Embodiment
Understand for the ease of those of ordinary skill in the art and implement the utility model, below in conjunction with the drawings and the specific embodiments, the utility model being described in further detail.
As shown in Figure 1, optical fiber scan type laser radar system optical fiber scan type laser radar system of the present utility model mainly comprises generating laser 1, controller 2, detector 3, optical fiber 4, navigation positioning system and data processing storage system, data processing storage system is made up of scrambler 6, processor 7, AD converter 8 and datalogger 12, navigation positioning system comprises antenna 9, IMU10 and GPS11, and optical fiber 4 is connected with generating laser 1, controller 2 and detector 3 respectively.
In addition, radar system also comprises motor 5, and optical fiber 4 is connected with motor 5.Optical fiber 4 comprises launching fiber array, receives fiber array and central optical fiber.Central optical fiber two ends connect launching fiber array respectively and receive fiber array.Controller 2 is by AD converter 8 connection handling device 7.
Principle of work of the present utility model is specific as follows: optical fiber (fiber) is along straight line arrangement, and the sweep trace that hot spot is formed on the ground is parallel or " Z " font, as shown in Figure 2.The rotating mirror that this scan mode is tilted by one, is coupled into successively by the laser pulse sequence of central optical fiber outgoing in the launching fiber array around central optical fiber.Again through optical transmitting system according to corresponding angle outgoing, the exit end of optical fiber linearly arranges and points to ground.From the return laser beam that target returns, received by the receiving light path with same design.First by receiving optics, be coupled into successively and receive optical fiber corresponding in fiber array, then scanned successively on the photosurface of detector by reception scanning system, finally form received signals.So, in each root optical fiber synchronous working in order of transmitting path and receiving path, just can be formed targeted scans, finally obtain the 3-D view of target.
The optical fiber scan type laser radar system that the utility model provides, the mode of optical fiber scanning is adopted to obtain signal, can give and obtain terrain object reflected signal rapidly and accurately, high-precision radar return data are provided, quick obtaining high-precision Three Dimensional Ground point cloud coordinate data for generating 3-D view.
The embodiment of the above is better embodiment of the present utility model; not limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment, and the equivalence change that all shapes according to the utility model, structure are done is all in protection domain of the present utility model.
Claims (5)
1. an optical fiber scan type laser radar system, it is characterized in that: described optical fiber scan type laser radar system mainly comprises generating laser (1), controller (2), detector (3), optical fiber (4), navigation positioning system and data processing storage system, described data processing storage system is by scrambler (6), processor (7), AD converter (8) and datalogger (12) are formed, described navigation positioning system comprises antenna (9), IMU (10) and GPS (11), described optical fiber (4) respectively with generating laser (1), controller (2) is connected with detector (3).
2. optical fiber scan type laser radar system according to claim 1, is characterized in that: described radar system also comprises motor (5), and described optical fiber (4) is connected with motor (5).
3. optical fiber scan type laser radar system according to claim 1, is characterized in that: described optical fiber (4) comprises launching fiber array, receives fiber array and central optical fiber.
4. optical fiber scan type laser radar system according to claim 3, is characterized in that: described central optical fiber two ends connect launching fiber array respectively and receive fiber array.
5. optical fiber scan type laser radar system according to claim 1, is characterized in that: described controller (2) is by AD converter (8) connection handling device (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319734.6U CN204903762U (en) | 2015-05-13 | 2015-05-13 | Optic fibre scanning formula laser radar system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319734.6U CN204903762U (en) | 2015-05-13 | 2015-05-13 | Optic fibre scanning formula laser radar system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903762U true CN204903762U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520319734.6U Active CN204903762U (en) | 2015-05-13 | 2015-05-13 | Optic fibre scanning formula laser radar system |
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| CN (1) | CN204903762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408656A (en) * | 2016-09-21 | 2017-02-15 | 江西天祥通用航空股份有限公司 | Building method and building system of 3D model |
| WO2019237599A1 (en) * | 2018-06-14 | 2019-12-19 | 昂纳信息技术（深圳）有限公司 | Solid-state light source of laser radar and laser radar |
-
2015
- 2015-05-13 CN CN201520319734.6U patent/CN204903762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408656A (en) * | 2016-09-21 | 2017-02-15 | 江西天祥通用航空股份有限公司 | Building method and building system of 3D model |
| WO2019237599A1 (en) * | 2018-06-14 | 2019-12-19 | 昂纳信息技术（深圳）有限公司 | Solid-state light source of laser radar and laser radar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Ming Inventor before: Liu Zhiwei |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160812 Address after: The 100070 Fengtai District Seahawks Beijing City Hospital No. 8 Building No. 3, block A 1005 Patentee after: Beijing Zhongxing times Technology Co., Ltd. Address before: 350211 Fujian city of Changle province Wu Hangxi Town Road No. 5 Building 6 No. 601 Patentee before: Liu Zhiwei |