CN208520988U - A kind of solid-state laser radar - Google Patents
A kind of solid-state laser radar Download PDFInfo
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- CN208520988U CN208520988U CN201820375420.1U CN201820375420U CN208520988U CN 208520988 U CN208520988 U CN 208520988U CN 201820375420 U CN201820375420 U CN 201820375420U CN 208520988 U CN208520988 U CN 208520988U
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- emitting module
- mems device
- laser radar
- state laser
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Abstract
The utility model discloses a kind of solid-state laser radar, including emitting module and receiving unit, it further includes MEMS device that receiving unit, which is set to above emitting module, 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 has the characteristics that good stability, long service life, miniaturization, is conducive to volume production and reasonable price, be suitble to extensive commercial.
Description
Technical field
The utility model relates to technical field of laser detection more particularly to a kind of solid-state laser radars.
Background technique
Laser radar is to detect the radar system of the characteristic quantities such as the position of target, speed, work to emit laser beam
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 be 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 transmitting module, 360 ° of receiving module rotations
Turn to obtain ambient enviroment distance signal.
However above-mentioned machinery rotating type laser radar has shortcomings: the slip ring of connection rotating part and fixed part, easily
Abrasion, influences the service life of whole device；Rotating part occupancy volume is big, in following application, is difficult further to 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.
Utility model content
A kind of solid-state laser radar is provided in the utility model embodiment, and detection can not only be carried out to environment and is swept
It retouches, meets the requirement of long-range detection and good reception, also with volume is small-sized, device stability and inheritance are good, valence
Lattice are reasonable, are conducive to the features such as volume production.
In order to solve the above-mentioned technical problem, the utility model embodiment discloses following technical solution:
A kind of solid-state laser radar, including emitting module and receiving unit are provided, the receiving unit is set to described
It 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 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 bracket, and the emitting module is set to through the MEMS device
Except the optical path range of the shoot laser of reflection.
Preferably, the receiving unit is fixed by receiving bracket, and the receiving unit is fixed on the top for receiving bracket,
The emitting module and the MEMS device are respectively arranged at the two sides for receiving bracket.
Preferably, the reception bracket 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.
It 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 utility model discloses a kind of solid-state laser radars comprising emitting module, receiving unit and MEMS device connect
It receives component to be set to above emitting module, the transmitting laser of emitting module is towards MEMS device, through going out for MEMS device reflection
It penetrates laser and carries out detection scanning to ambient enviroment；Shoot laser through MEMS device reflection has preferable field angle and scans close
Degree, can satisfy the requirement of laser radar long-range detection.Receiving unit reception is swashed by the reflection that ambient enviroment is reflected back
Light, and carry out respective handling.Solid-state laser radar does not have any mechanical type rotating part, improves the stability of whole device
And service life；MEMS device compact structure, the space occupied is few, and use reliability is good, convenient for manufacture；Emitting module, reception
Component and MEMS device structure setting are compact, and heat dissipation is good and makes full use of inner space, promote device miniaturization；Internal components
Adjustment technique simplifies, and is conducive to product volume production and control cost, is more suitable for extensive commercialization.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 show the schematic diagram of internal structure of solid-state laser radar described in the utility model embodiment one.
Appended drawing reference
100, emitting module；101, transmitter；200, receiving unit；201, bracket is received；300, MEMS device；301,
MEMS bracket；400, pedestal.
Specific embodiment
The utility model following examples provide solid-state laser radar, meet remote ranging and good reception
It is required that while also having many advantages, such as good stability, long service life, small in size, reasonable price, being conducive to volume production.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
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 optical path side
To.
It further include pedestal 400 and shell, emitting module 100, receiving unit 200 and MEMS device 300 are all set in 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, is regarded with bigger scanning
Rink corner.
Illustratively, the angle between the transmitting laser of adjacent transmitter 101 is 20 °, is located in the middle transmitter 101
Transmitting laser face MEMS device 300, the transmitter 101 relatively intermediate positioned at the transmitting laser of the transmitter 101 of two sides
The angle for emitting laser is respectively ± 20 °；The swing angle of MEMS device 300 is ± 5 °, then the scanning view of solid-state laser radar
Rink corner is ± 30 °.The scanning field of view angle of solid-state laser radar is by the placement angle of transmitter 101 and the swing of MEMS device 300
Angle determines；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 optical 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 far 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 pedestal 400 by receiving bracket 201；Receiving unit 200 is fixed on reception bracket
201 top；Emitting module 100 and MEMS device 300 are respectively arranged at the two sides for receiving bracket 201；Wherein emitting module 100
It is set to the front side for receiving bracket 201, MEMS device 300 is set to the rear side for receiving bracket 201.
The lower part of reception bracket 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 more compact, and inner space occupies less, small in size, and heat dissipation is filled
Point.
A kind of solid-state laser radar disclosed in the embodiments of the present invention in use, using MEMS device
After 300 are reflected the transmitting laser of emitting module 100, detection scanning is carried out to ambient enviroment；Receiving unit 200 receive by
The reflection laser that ambient enviroment is reflected back；There is preferable field angle and scanning by the shoot laser that MEMS device 300 reflects
Density can satisfy 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.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to 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 being described relatively simple, related place is referring to embodiment of the method
Part explanation.
Above-described the utility model embodiment, does not constitute the restriction to scope of protection of the utility model.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 scope within.
Claims (8)
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, it is described to connect for changing the optical path direction of the transmitting laser of the emitting module
It receives component and is fixed by receiving bracket, the receiving unit is fixed on the top of reception bracket, the emitting module and described
MEMS device is respectively arranged at the two sides for receiving bracket.
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 bracket
Fixed, the emitting module is set to except the optical 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 reception bracket lower part, which offers, to be passed through
Emit the through-hole of laser and shoot laser.
7. a kind of solid-state laser radar as described in claim 1, 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.
8. 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 |
|---|---|---|---|
| CN201820375420.1U CN208520988U (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 |
|---|---|---|---|
| CN201820375420.1U CN208520988U (en) | 2018-03-20 | 2018-03-20 | A kind of solid-state laser radar |
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| Publication Number | Publication Date |
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| CN208520988U true CN208520988U (en) | 2019-02-19 |
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| CN201820375420.1U Active CN208520988U (en) | 2018-03-20 | 2018-03-20 | A kind of solid-state laser radar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318873A (en) * | 2018-03-20 | 2018-07-24 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
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2018
- 2018-03-20 CN CN201820375420.1U patent/CN208520988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318873A (en) * | 2018-03-20 | 2018-07-24 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
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