CN108318873A - A kind of solid-state laser radar - Google Patents
A kind of solid-state laser radar Download PDFInfo
- Publication number
- CN108318873A CN108318873A CN201810227934.7A CN201810227934A CN108318873A CN 108318873 A CN108318873 A CN 108318873A CN 201810227934 A CN201810227934 A CN 201810227934A CN 108318873 A CN108318873 A CN 108318873A
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- solid
- emitting module
- laser radar
- mems device
- state laser
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- 230000003287 optical effect Effects 0.000 claims abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a kind of solid-state laser radar, including emitting module and receiving unit, receiving unit is set to above emitting module, further includes MEMS device, for changing the optical path direction of the transmitting laser of emitting module.Above-mentioned solid-state laser radar, without any mechanical type rotating part, using MEMS device compact structure convenient for manufacture, internal components structure setting is compact, adjustment technique simplifies, meet the requirement of telemeasurement and good reception, also have the characteristics that stability is good, service life is long, miniaturization, be conducive to volume production and reasonable price, is suitble to extensive commercial.
Description
Technical field
The present invention relates to technical field of laser detection more particularly to a kind of solid-state laser radars.
Background technology
Laser radar is to emit laser beam come the radar system of the characteristic quantities such as the position, the speed that detect target, work
It is first to objective emission exploring laser light light beam as principle, then receiver is received from the reflected signal of target, last laser
Radar will reflect signal and is compared with transmitting signal, be achieved with target for information about after making proper treatment, such as target
Distance, orientation, height, speed, posture, the even parameters such as shape.
Since laser radar is to the innate advantage of environment sensing, become what automatic Pilot technology detected environment
Main sensors.Laser radar mainly uses machinery rotating type at present：Rotary part drives 360 ° of transmitting module, receiving module rotations
Turn to obtain ambient enviroment distance signal.
However above-mentioned machinery rotating type laser radar has shortcomings：The slip ring of rotating part and fixed part is connected, easily
Abrasion, influences the service life of whole device；Rotating part occupancy volume is big, in following application, it is difficult to further contract
Small size realizes miniaturization；The laser radar transmitting module and receiving module of multi-thread (such as 32 lines, 64 lines) are set in a pair wise manner
It sets, high to angle setting requirements, manufacture difficulty is big, is unfavorable for volume production and at high price.
Invention content
A kind of solid-state laser radar is provided in the embodiment of the present invention, and detection scanning can not only be carried out to environment, it is full
The requirement of sufficient long-range detection and good reception, also with volume is small-sized, device stability and inheritance are good, price is closed
Reason is conducive to the features such as volume production.
In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical solutions：
A kind of solid-state laser radar, including emitting module and receiving unit are provided, the receiving unit is set to described
Further include MEMS device above emitting module, for changing the optical path direction of the transmitting laser of the emitting module.
Preferably, the emitting module includes several transmitters, and the transmitting laser of the transmitter is equal described in
MEMS device.
Preferably, the transmitting laser of the transmitter all has identical angle of elevation alpha.
Preferably, the angle between the transmitting laser of two transmitters of arbitrary neighborhood is identical, is β.
Preferably, the MEMS device is fixed by MEMS holders, and the emitting module is set to through the MEMS device
Except the light path range of the shoot laser of reflection.
Preferably, the receiving unit is fixed by receiving holder, and the receiving unit is fixed on the top for receiving holder,
The emitting module and the MEMS device are respectively arranged at the both sides for receiving holder.
Preferably, the reception holder lower part offers the through-hole by emitting laser and shoot laser.
Preferably, the emitting module is set to the front side of the receiving unit, and the MEMS device is set to described connect
Receive the rear side of component.
Preferably, further include pedestal and shell, the emitting module, the receiving unit and the MEMS device are fixed on
On the pedestal, and be set to the shell and the pedestal surround made of in cavity
The invention discloses a kind of solid-state laser radars comprising emitting module, receiving unit and MEMS device, reception group
Part is set to above emitting module, and towards MEMS device, the outgoing through MEMS device reflection swashs the transmitting laser of emitting module
Light carries out detection scanning to ambient enviroment；Shoot laser through MEMS device reflection has preferable field angle and scanning density,
It disclosure satisfy that the requirement of laser radar long-range detection.Receiving unit receives the reflection laser being reflected back by ambient enviroment,
And carry out respective handling.Solid-state laser radar do not have any mechanical type rotating part, improve whole device stability and
Service life；MEMS device compact structure, the space occupied is few, and use reliability is good, convenient for manufacture；Emitting module, reception group
Part and MEMS device structure setting are compact, and heat dissipation is good and makes full use of inner space, promote device miniaturization；Internal components fill
It adjusts technique to simplify, is conducive to product volume production and control cost, is more suitable for extensive commercialization.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 show the internal structure schematic diagram of the solid-state laser radar described in the embodiment of the present invention one.
Reference numeral
100, emitting module；101, transmitter；200, receiving unit；201, holder is received；300, MEMS device；301、
MEMS holders；400, pedestal.
Specific implementation mode
Following examples of the present invention provide solid-state laser radar, meet wanting for remote ranging and good reception
It asks, while also having many advantages, such as that stability is good, service life is long, small, reasonable price, being conducive to volume production.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Embodiment one：
As shown in Figure 1, solid-state laser radar includes emitting module 100, receiving unit 200 and MEMS device 300, reception group
Part 200 is set to the top of emitting module 100, MEMS device 300 for changing the transmitting laser of emitting module 100 light path side
To.
Further include pedestal 400 and shell, emitting module 100, receiving unit 200 and MEMS device 300 may be contained within pedestal
400 and shell surround made of in cavity；Emitting module 100, receiving unit 200 and MEMS device 300 are fixed on pedestal 400
On.
Emitting module 100 includes three transmitters 101；The transmitting laser of three transmitters 101 has identical angle of elevation alpha simultaneously
Towards MEMS device 300；Emit laser upwardly toward MEMS device 300, after the reflection of MEMS device 300, shoot laser is to week
Collarette border is scanned.
Angle between the transmitting laser of two transmitters 101 of arbitrary neighborhood is identical, is β；Emit laser through MEMS
After device 300 reflects, shoot laser is uniformly spliced by the transmitting laser of three transmitters 101, and the scanning with bigger regards
Rink corner.
Illustratively, the angle between the transmitting laser of adjacent transmitter 101 is 20 °, is located at intermediate transmitter 101
Transmitting laser face MEMS device 300, be located at the transmitter 101 of the transmitting laser centre relatively of the transmitter 101 of both sides
The angle for emitting laser is respectively ± 20 °；The swing angle of MEMS device 300 is ± 5 °, then the scanning of solid-state laser radar regards
Rink corner is ± 30 °.The scanning field of view angle of solid-state laser radar by transmitter 101 placement angle and MEMS device 300 swing
Angle-determining；The scanning field of view angle of solid-state laser radar determines the sweep length in practical application scene；Such as solid-state laser radar
It is scanned for road surface, maximum sweep width is approximately equal to width of roadway, therefore the folder between the transmitting laser of adjacent transmitter 101
Angle is less than or equal to 30 °.
Emitting module 100 is set to except the light path range of shoot laser；When i.e. shoot laser is emitted to ambient enviroment not
The blocking of component 100 can be launched；It is compact as possible between each device but in order to save inner space, therefore 100 He of emitting module
The distance between MEMS device 300 is the minimum range for the condition that meets.
Receiving unit 200 is fixed on by receiving holder 201 on pedestal 400；Receiving unit 200 is fixed on reception holder
201 top；Emitting module 100 and MEMS device 300 are respectively arranged at the both sides for receiving holder 201；Wherein emitting module 100
It is set to the front side for receiving holder 201, MEMS device 300 is set to the rear side for receiving holder 201.
The lower part of reception holder 201 offers the through-hole by emitting laser and shoot laser.Setting makes full use of in this way
The space of 200 lower section of receiving unit, keeps whole device structure compacter, and inner space occupies less, small, and heat dissipation is filled
Point.
A kind of solid-state laser radar disclosed in the embodiment of the present invention in use, will using MEMS device 300
After the transmitting laser of emitting module 100 is reflected, detection scanning is carried out to ambient enviroment；Receiving unit 200 is received by surrounding
The reflection laser that Ambient returns；There is preferable field angle and scanning density by the shoot laser that MEMS device 300 reflects,
It disclosure satisfy that the requirement of laser radar long-range detection and good reception.
Solid-state laser radar does not have any mechanical type rotating part, improves the stability of whole device and uses the longevity
Life；MEMS device compact structure, the space occupied is few, and use reliability is good, convenient for manufacture；Emitting module, receiving unit and
MEMS device structure setting is compact, and heat dissipation is good, makes full use of inner space, promote device miniaturization；Internal components adjustment work
Skill simplifies, and is conducive to product volume production and control cost, is more suitable for extensive commercialization.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring to embodiment of the method
Part explanation.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made by modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of solid-state laser radar, which is characterized in that including emitting module and receiving unit, the receiving unit is set to institute
It states above emitting module, further includes MEMS device, for changing the optical path direction of the transmitting laser of the emitting module.
2. a kind of solid-state laser radar as described in claim 1, which is characterized in that the emitting module includes several transmittings
Device, the transmitting laser of the transmitter is towards the MEMS device.
3. a kind of solid-state laser radar as claimed in claim 2, which is characterized in that the transmitting laser of the transmitter all has
Identical angle of elevation alpha.
4. a kind of solid-state laser radar as claimed in claim 2, which is characterized in that two transmitters of arbitrary neighborhood
The angle emitted between laser is identical, is β.
5. a kind of solid-state laser radar as described in claim 1, which is characterized in that the MEMS device is solid by MEMS holders
Fixed, the emitting module is set to except the light path range of the shoot laser reflected through the MEMS device.
6. a kind of solid-state laser radar as described in claim 1, which is characterized in that the receiving unit is solid by receiving holder
Fixed, the receiving unit is fixed on the top for receiving holder, and the emitting module and the MEMS device are respectively arranged at described
Receive the both sides of holder.
7. a kind of solid-state laser radar as claimed in claim 6, which is characterized in that the reception holder lower part, which offers, to be passed through
Emit the through-hole of laser and shoot laser.
8. a kind of solid-state laser radar as claimed in claim 6, which is characterized in that the emitting module is set to the reception
The front side of component, the MEMS device are set to the rear side of the receiving unit.
9. a kind of solid-state laser radar as described in claim 1, which is characterized in that further include pedestal and shell, the transmitting
Component, the receiving unit and the MEMS device are fixed on the pedestal, and are set to the shell and pedestal conjunction
In cavity made of enclosing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227934.7A CN108318873A (en) | 2018-03-20 | 2018-03-20 | A kind of solid-state laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227934.7A CN108318873A (en) | 2018-03-20 | 2018-03-20 | A kind of solid-state laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108318873A true CN108318873A (en) | 2018-07-24 |
Family
ID=62898009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810227934.7A Withdrawn CN108318873A (en) | 2018-03-20 | 2018-03-20 | A kind of solid-state laser radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108318873A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120187283A1 (en) * | 2011-01-26 | 2012-07-26 | Sanyo Electric Co., Ltd. | Laser radar system and light receiving device |
| CN104160240A (en) * | 2012-02-15 | 2014-11-19 | 普莱姆森斯有限公司 | Scanning depth engine |
| JP2017003391A (en) * | 2015-06-09 | 2017-01-05 | 株式会社デンソー | Laser radar system |
| CN106443699A (en) * | 2016-09-09 | 2017-02-22 | 深圳市砝石激光雷达有限公司 | Multi-combination laser radar device and scanning method thereof |
| US20170090034A1 (en) * | 2014-06-11 | 2017-03-30 | Robert Bosch Gmbh | Vehicle lidar system |
| WO2017073982A1 (en) * | 2015-10-30 | 2017-05-04 | 한국생산기술연구원 | Three-dimensional scanning system |
| JP2017138301A (en) * | 2016-01-28 | 2017-08-10 | 株式会社デンソー | Laser radar equipment |
| CN107656258A (en) * | 2017-10-19 | 2018-02-02 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN208520988U (en) * | 2018-03-20 | 2019-02-19 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
-
2018
- 2018-03-20 CN CN201810227934.7A patent/CN108318873A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120187283A1 (en) * | 2011-01-26 | 2012-07-26 | Sanyo Electric Co., Ltd. | Laser radar system and light receiving device |
| CN104160240A (en) * | 2012-02-15 | 2014-11-19 | 普莱姆森斯有限公司 | Scanning depth engine |
| US20170090034A1 (en) * | 2014-06-11 | 2017-03-30 | Robert Bosch Gmbh | Vehicle lidar system |
| JP2017003391A (en) * | 2015-06-09 | 2017-01-05 | 株式会社デンソー | Laser radar system |
| WO2017073982A1 (en) * | 2015-10-30 | 2017-05-04 | 한국생산기술연구원 | Three-dimensional scanning system |
| JP2017138301A (en) * | 2016-01-28 | 2017-08-10 | 株式会社デンソー | Laser radar equipment |
| CN106443699A (en) * | 2016-09-09 | 2017-02-22 | 深圳市砝石激光雷达有限公司 | Multi-combination laser radar device and scanning method thereof |
| CN107656258A (en) * | 2017-10-19 | 2018-02-02 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN208520988U (en) * | 2018-03-20 | 2019-02-19 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
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Application publication date: 20180724 |