CN206479634U - Multi-line laser radar - Google Patents
Multi-line laser radar Download PDFInfo
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- CN206479634U CN206479634U CN201621492882.9U CN201621492882U CN206479634U CN 206479634 U CN206479634 U CN 206479634U CN 201621492882 U CN201621492882 U CN 201621492882U CN 206479634 U CN206479634 U CN 206479634U
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- laser
- terminal optical
- transmitting terminal
- optical fiber
- laser radar
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Abstract
A kind of multi-line laser radar is disclosed in embodiment of the present utility model, the multi-line laser radar includes：Generating laser, for launching laser；Compression shaping unit, for the transmitting laser coupled to be entered in transmitting terminal optical fiber；The transmitting terminal optical fiber is used to export transmitting laser to transmitting terminal optical alignment unit；It is directional light that the transmitting terminal optical alignment unit, which is used for the transmitting laser alignment,.The utility model embodiment can improve the vertical resolution of multi-line laser radar.
Description
Technical field
The utility model is related to detection field, more particularly to a kind of multi-line laser radar.
Background technology
Laser radar is the radar system that the characteristic quantities such as position, the speed of target are detected to launch laser beam, its work
It is first to objective emission exploring laser light light beam, then by the signal reflected from target and transmission signal that receive as principle
It is compared, makees after proper treatment, so that it may obtain target for information about, for example target range, orientation, height, speed, appearance
The parameters such as state, even shape.
Multi-line laser radar is one kind of laser radar, is to launch laser by semiconductor laser transmitter, and to echo
What optical signal was detected, multi-line laser radar includes multiple generating lasers, and each generating laser can measure one
Distance.The radiating circuit device of laser is complex, and volume is also larger, therefore foot can not be stacked in less scope
Laser line number is that the stacking quantity of generating laser is that influence multi-line laser radar is vertically differentiated in enough quantity, unit range
The key factor of rate, therefore multi-line laser radar vertical resolution of the prior art is still relatively low.
It can be seen that, existing multi-line laser radar is bulky, and vertical resolution is not high.
Utility model content
A kind of multi-line laser radar is provided in the utility model embodiment, volume can be reduced, vertical resolution is improved.
In order to solve the above-mentioned technical problem, the utility model embodiment discloses following technical scheme：
On the one hand there is provided a kind of multi-line laser radar, it is characterised in that including：
Generating laser, for launching laser；
Compression shaping unit, for the transmitting laser coupled to be entered in transmitting terminal optical fiber；
The transmitting terminal optical fiber is used to export transmitting laser to transmitting terminal optical alignment unit；
It is directional light that the transmitting terminal optical alignment unit, which is used for the transmitting laser alignment,.
Optionally, in addition to transmitting terminal optical fiber head, set with the transmitting terminal optical fiber and transmitting terminal optical alignment unit it
Between.
Optionally, the transmitting laser goes out luminous point accurate positioned at the transmitting terminal optics after the transmitting terminal fiber exit
On the focal plane of straight unit.
Optionally, in addition to：
Receiving terminal optical alignment unit, for receiving reflection laser；
Receiving terminal optical fiber, for the reflection laser to be imported into the fiber optic collimator unit；
The fiber optic collimator unit, for the reflection laser to be focused on；
Laser pickoff, for receiving the reflection laser after the fiber optic collimator unit is focused on.
Optionally, in addition to receiving terminal optical fiber head, be arranged at the receiving terminal optical fiber and receiving terminal optical alignment unit it
Between.
Optionally, the generating laser, compression shaping unit, transmitting terminal optical fiber and transmitting terminal optical alignment unit are set
On the rotating mechanism for being placed in the laser radar.
Optionally, the receiving terminal optical alignment unit, receiving terminal optical fiber and laser pickoff are arranged at the laser
On the rotating mechanism of radar.
A kind of multi-line laser radar, including generating laser are disclosed in embodiment of the present utility model, it is sharp for launching
Light；Compression shaping unit, for the transmitting laser coupled to be entered in transmitting terminal optical fiber；Transmitting terminal optical fiber, for exporting hair
Laser is penetrated to transmitting terminal optical alignment unit；Transmitting terminal optical alignment unit, for being directional light by transmitting laser alignment.This reality
With the multi-line laser radar of new embodiment, imported between compression shaping lens and transmitting terminal optical alignment unit using optical fiber
Launch laser, the external diameter of optical fiber is very thin, more can closely install, so as to improve Jiao of transmitting terminal optical alignment unit
Go out the density of luminous point in plane, improve the vertical spatial resolution of laser radar, the volume of laser radar can also be reduced.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 show the structural representation of the multi-line laser radar of the utility model embodiment；
Fig. 2 show the structural representation of the multi-line laser radar of the utility model embodiment；
Fig. 3 show the light path schematic diagram of the utility model embodiment；
Fig. 4 show the structural representation of the multi-line laser radar of the utility model embodiment；
Fig. 5 show the structural representation of the multi-line laser radar of the utility model embodiment.
Embodiment
The utility model following examples provide a kind of multi-line laser radar, can improve vertical point of multi-line laser radar
Resolution, reduces volume.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1 show the structural representation of the multi-line laser radar of the utility model embodiment, as shown in figure 1, described many
Line laser radar, including：
Generating laser 101, for launching laser；
Compression shaping unit 102, for the transmitting laser coupled to be entered in transmitting terminal optical fiber；
Transmitting terminal optical fiber 103, for exporting transmitting laser to transmitting terminal optical alignment unit；
Transmitting terminal optical alignment unit 105, for being directional light by the transmitting laser alignment.
In the utility model embodiment, the laser goes out luminous point positioned at the transmitting terminal light after transmitting terminal fiber exit
On the focal plane for learning collimation unit.
The multi-line laser radar of the utility model embodiment, between compression shaping lens and transmitting terminal optical alignment unit
Transmitting laser is imported using optical fiber, the external diameter of optical fiber is very thin, more can closely install, so as to improve transmitting terminal optics
Go out the density of luminous point on the focal plane of collimation unit, improve the vertical spatial resolution of laser radar.Simultaneously as optical fiber is very
Carefully, the volume of laser radar can also be reduced, cost is reduced.
Fig. 2 show the structural representation of the multi-line laser radar of the utility model embodiment, as shown in Fig. 2 multi-thread swash
Optical radar also includes transmitting terminal optical fiber head 105, be arranged at the transmitting terminal optical fiber 103 and transmitting terminal optical alignment unit 105 it
Between.
Transmitting terminal optical fiber head can improve transmissivity of the light in transmitting terminal fiber end face, and that improves transmitting terminal fiber end face can
By property, so as to improve the performance of whole multi-line laser radar.
Fig. 3 show the light path schematic diagram of the utility model embodiment, as shown in figure 3, generating laser (does not show in Fig. 3
Go out) launch laser, compression shaping unit (not shown in Fig. 3) will launch laser coupled and enter in transmitting terminal optical fiber, transmitting terminal light
It is fine thinner therefore not shown in figure 3, it is believed that each light path 301 is all as derived from an optical fiber.Laser from
After transmitting terminal fiber exit, go out luminous point on the focal plane of transmitting terminal optical alignment unit 302.
In the utility model embodiment, a diameter of 125 microns of the optical fiber of use, in the vertical direction of multi-line laser radar
The upper different up to 80 tunnels/10mm of packing density spirit, is more than ten times of common laser radar in the prior art, therefore can significantly carry
The vertical resolution of high laser radar, can also reduce the volume of laser radar.Meanwhile, when multichannel is assembled, the body of optical fiber
Product is small, lightweight, also more convenient when debugging, can improve efficiency, cost-effective.
Fig. 4 show the structural representation of the multi-line laser radar of the utility model embodiment, as shown in figure 4, described swash
Optical radar also includes：
Receiving terminal optical alignment unit 401, for receiving reflection laser；
Receiving terminal optical fiber 403, for the reflection laser to be imported into fiber optic collimator unit；
Fiber optic collimator unit 404, for the reflection laser to be focused on；
Laser pickoff 405, for receiving the reflection laser after the fiber optic collimator unit is focused on.
Also include receiving terminal optical fiber head 402, be arranged at the connection receiving terminal optical fiber 403 and receiving terminal optical alignment unit
Between 401.
The transmitting terminal of multi-line laser radar employs transmitting terminal optical fiber, can use similar structure in receiving terminal, i.e.,
It using receiving terminal optical fiber, more can closely install, reduce the volume of laser radar.
Fig. 5 show the structural representation of the utility model multi-line laser radar, as shown in figure 5, the utility model is implemented
The multi-line laser radar of example includes rotating mechanism 510, communication system 520 and fixed mechanism 530.
FPGA master control systems 511, emission system 512 and reception system 513 are provided with rotating mechanism 510.
Emission system 512 includes the generating laser, compression shaping unit, transmitting terminal optical fiber and transmitting of above-described embodiment
Optical alignment unit is held to set.The concrete structure and function of emission system 512 are as described above, will not be repeated here.
Reception system 513 includes the receiving terminal optical alignment unit, receiving terminal optical fiber, fiber optic collimator unit of above-described embodiment
And laser pickoff.The concrete structure and function of reception system 513 are as described above, will not be repeated here.
In the utility model other embodiment, fiber optic collimator unit can also be not provided with the rotating mechanism in laser radar
On.
Communication system 520 can be the wireless telecommunication system or line communication system transmitted with energy, for rotating mechanism
Communication between 510 and fixed mechanism 530.
It is provided with high-precision rotary angle measuring system 531 on fixed mechanism 530, FPGA data integrated system 532 and many
Road laser ranging data output interface 532 etc..
Multi-line laser radar small volume, the cost of the utility model embodiment are low, vertical resolution is high.
A kind of multi-line laser radar is disclosed in embodiment of the present utility model, in transmitting terminal, compression shaping lens and hair
Penetrate between the optical alignment unit of end using optical fiber importing transmitting laser, in receiving terminal, reflection laser is also imported using optical fiber.Optical fiber
External diameter it is very thin, more can closely install, luminous point is gone out on the focal plane so as to improve transmitting terminal optical alignment unit
Density, improve laser radar vertical spatial resolution.Simultaneously as optical fiber is very thin, the body of laser radar can also be reduced
Product, reduces cost.
Those skilled in the art can be understood that the technology in the utility model embodiment can add by software
The mode of required common hardware realizes that common hardware includes universal integrated circuit, universal cpu, general-purpose storage, universal element
Device etc., naturally it is also possible to which application specific integrated circuit, dedicated cpu, private memory, special components and parts etc. are included by specialized hardware
To realize, but the former is more preferably embodiment in many cases.Understood based on such, the skill in the utility model embodiment
The part that art scheme substantially contributes to prior art in other words can be embodied in the form of software product, the calculating
Machine software product can be stored in storage medium, and such as read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc, CD etc., including some instructions are to cause a computer equipment
(can be personal computer, server, or network equipment etc.) performs each embodiment of the utility model or embodiment
Method described in some parts.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.It is real especially for system
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Above-described the utility model embodiment, does not constitute the restriction to the utility model protection domain.It is any
Modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of multi-line laser radar, it is characterised in that including：
Generating laser, for launching laser；
Compression shaping unit, for the transmitting laser coupled to be entered in transmitting terminal optical fiber；
The transmitting terminal optical fiber is used to export transmitting laser to transmitting terminal optical alignment unit；
It is directional light that the transmitting terminal optical alignment unit, which is used for the transmitting laser alignment,.
2. multi-line laser radar as claimed in claim 1, it is characterised in that also including transmitting terminal optical fiber head, is arranged at described
Between transmitting terminal optical fiber and transmitting terminal optical alignment unit.
3. multi-line laser radar as claimed in claim 1 or 2, it is characterised in that the transmitting laser is from the transmitting terminal light
After fine outgoing, go out luminous point on the focal plane of the transmitting terminal optical alignment unit.
4. multi-line laser radar as claimed in claim 1 or 2, it is characterised in that also include：
Receiving terminal optical alignment unit, for receiving reflection laser；
Receiving terminal optical fiber, for the reflection laser to be imported into fiber optic collimator unit；
The fiber optic collimator unit, for the reflection laser to be focused on；
Laser pickoff, for receiving the reflection laser after the fiber optic collimator unit is focused on.
5. multi-line laser radar as claimed in claim 4, it is characterised in that also including receiving terminal optical fiber head, is arranged at described
Between receiving terminal optical fiber and receiving terminal optical alignment unit.
6. multi-line laser radar as claimed in claim 1 or 2, it is characterised in that the generating laser, compression shaping list
Member, transmitting terminal optical fiber and transmitting terminal optical alignment unit are arranged on the rotating mechanism of the laser radar.
7. multi-line laser radar as claimed in claim 5, it is characterised in that the receiving terminal optical alignment unit, receiving terminal
Optical fiber and laser pickoff are arranged on the rotating mechanism of the laser radar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492882.9U CN206479634U (en) | 2016-12-30 | 2016-12-30 | Multi-line laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492882.9U CN206479634U (en) | 2016-12-30 | 2016-12-30 | Multi-line laser radar |
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| Publication Number | Publication Date |
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| CN206479634U true CN206479634U (en) | 2017-09-08 |
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| CN201621492882.9U Active CN206479634U (en) | 2016-12-30 | 2016-12-30 | Multi-line laser radar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133618A (en) * | 2019-04-19 | 2019-08-16 | 深圳市速腾聚创科技有限公司 | Laser radar and detection method |
-
2016
- 2016-12-30 CN CN201621492882.9U patent/CN206479634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133618A (en) * | 2019-04-19 | 2019-08-16 | 深圳市速腾聚创科技有限公司 | Laser radar and detection method |
| CN110133618B (en) * | 2019-04-19 | 2021-08-17 | 深圳市速腾聚创科技有限公司 | Laser radar and detection method |
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