CN105866785A - Laser scanning range finder - Google Patents
Laser scanning range finder Download PDFInfo
- Publication number
- CN105866785A CN105866785A CN201610290083.1A CN201610290083A CN105866785A CN 105866785 A CN105866785 A CN 105866785A CN 201610290083 A CN201610290083 A CN 201610290083A CN 105866785 A CN105866785 A CN 105866785A
- Authority
- CN
- China
- Prior art keywords
- laser
- scanning range
- laser scanning
- finding device
- plate
- Prior art date
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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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Communication System (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention provides a laser scanning range finder. The laser scanning range finder comprises a rotatable rotating structure and a fixed structure incapable of rotating, wherein the rotating structure comprises a receiving plate, a laser transmitter, a skeleton, an outer rotor, a laser receiver and a back plate; the fixed structure comprises a stator coil, a transmitting plate and a transmitting fixed platform. The receiving plate, the laser transmitter, the outer rotor, the laser receiver and the back plate are installed on the skeleton, the stator coil and the transmitting plate are installed on the transmitting fixed platform, and a plane formed by laser transmitted by the laser transmitter and laser received by the laser receiver is parallel to an installing plane. Compared with the prior art, a wireless power supply and full duplex data transmission mode is adopted in the laser scanning range finder, and the defect that the service life is short due to slip ring power supply and communication is overcome. In addition, by means of magnetic medium rotation of electro-magnetic induction, the size and noise are reduced compared with existing belt or gear transmission.
Description
Technical field
The present invention relates to a kind of Robot Design technology and laser scanner technique, particularly relate to
A kind of laser scanning range-finding device.
Background technology
Robot (Robot) is the installations automatically performing work, and it both can accept
The mankind command, and can run again the program of layout in advance, be also based on artificial intelligence technology
The principle guiding principle action formulated.In general, the task of robot is to assist or replace people
The work of class, such as, produce industry, building industry or the work of dangerous industry.Mobile machine
People is the several functions such as collection environment sensing, dynamic decision and planning, Behavior-Based control and execution
In the integrated system of one, people can be replaced to danger, badly or extreme environment performs to appoint
Business, completes to scout, goes on patrol, guards against, anti-terrorism, explosive, scientific investigation and sampling etc.,
Thus such as requiring assistance, scientific investigation, the field such as military affairs there is huge using value.
In existing mobile robot application, for the consideration of walking secure context, past
Toward needing the detection mobile robot Obstacle Position in course front, anticipation in advance
And control robot take necessity measure of dodging or detour, such as, at robot body
The laser scanning range-finding device of correspondence installed above.But, existing laser scanning and ranging
Device uses slip ring mostly when transmitting signal and electric energy, is engaged by belt or gear
Mode realizes transmission, there is the shortcoming that such as equipment volume is big, the life-span is short, noise is big.
Additionally, the body that the wireless power coil in existing laser scanning range-finding device often takies
Long-pending relatively big, and then make the volume of single unit system relatively greatly, the design and installation to robot
Require the most harsh.
In view of this, how to design the laser scanning range-finding device of a kind of novel structure, or
Existing laser scanning range-finding device is efficiently modified, of the prior art to solve
Drawbacks described above and deficiency, be the problem that person skilled is urgently to be resolved hurrily in the industry.
Summary of the invention
For the drawbacks described above existing for laser scanning range-finding device of the prior art, this
Invention provides a kind of highly integrated integration, the laser scanning range-finding device of compact structure.
According to one aspect of the present invention, it is provided that a kind of laser scanning range-finding device, including
Rotating rotational structure and non-rotatable fixed structure, described rotational structure includes
Receive plate, generating laser, skeleton, outer rotor, laser pickoff and backboard, described
Fixed structure includes stator coil, expelling plate and transmitting fixed platform, described rotational structure
It is connected to each other by bearing with described fixed structure,
Wherein, plate, generating laser, outer rotor, laser pickoff and backboard are received equal
Being installed on skeleton, stator coil and expelling plate to be mounted on launching fixed platform, laser is sent out
The plane of the laser composition that the laser that emitter is launched and laser pickoff receive and described laser
The mounting plane of scanning range unit is parallel to each other.
An embodiment wherein, laser scanning range-finding device also includes wireless power coil,
The area of space being arranged between generating laser and laser pickoff.
An embodiment wherein, it is solid that the emitting portion of wireless power coil is installed on transmitting
Fixed platform and be connected to expelling plate, the receiving portion of wireless power coil be installed on skeleton and
It is connected to receive plate.
An embodiment wherein, rotational structure also includes encoder, and fixed structure also wraps
Including coding tooth, wherein, encoder is arranged on reception plate, and coding tooth is installed on wireless confession
The emitting portion of electric coil, for recording turned position and the number of turns of described rotational structure.
An embodiment wherein, generating laser and laser pickoff are electrically coupled to backboard.
An embodiment wherein, the rotating speed of rotational structure depends on the PWM of outside input
The dutycycle numerical value of signal.
An embodiment wherein, stator coil is arranged at the inner side of outer rotor, and magnetic pole sets
Be placed on outer rotor, expelling plate apply on stator coil rule change alternating voltage with
Producing magnetic field, stator coil couples formation thrust with outer rotor or suction makes described rotation
Structure rotates.
An embodiment wherein, expelling plate includes the first light emitting diode and the first sensing
Diode, receives plate and includes the second light emitting diode and the second sense diode, wherein,
Described first light emitting diode and described second sense diode form first and are wirelessly transferred road
Footpath, and described first sense diode and described second light emitting diode form the second nothing
Line transmission path, and described first wireless propagation path and described second wireless propagation path
Realize full-duplex data transmission in a synchronous manner.
An embodiment wherein, described first light emitting diode has a first wave length light
Spectrum, described second light emitting diode has a second wave length spectrum, described first sensing two
Pole pipe senses the light of described second wave length spectrum, and described second sense diode sensing is described
The light of first wave length spectrum, wherein, described first wave length spectrum is different from described second ripple
Long spectrum.
An embodiment wherein, the mounting plane of described laser scanning range-finding device and water
The angle of plane is between 0~180 degree.
An embodiment wherein, described laser scanning range-finding device is round table-like solid
Structure.
An embodiment wherein, generating laser and laser pickoff are arranged at described
On the side surface of stereochemical structure.
Using the laser scanning range-finding device of the present invention, it includes rotating rotational structure
And non-rotatable fixed structure, rotational structure include receiving plate, generating laser,
Skeleton, outer rotor, laser pickoff and backboard, fixed structure includes stator coil, sends out
Penetrating plate and launch fixed platform, rotational structure is connected to each other by bearing with fixed structure.
Receive plate, generating laser, outer rotor, laser pickoff and backboard and be installed on skeleton,
Stator coil and expelling plate are installed on transmitting fixed platform, the laser of laser transmitter projects
The plane formed with the laser of laser pickoff reception and the installation of laser scanning range-finding device
Plane is parallel to each other.Compared to prior art, the laser scanning range-finding device of the present invention is adopted
By wireless power and full-duplex data transmission means, it is to avoid such as slip ring is powered and communication
The defect that produced service life is shorter.Furthermore, the present invention magnetic by electromagnetic induction
Media drive, compares existing belt transmission or gear drive decreases volume and noise.
Additionally, emitting portion and the receiving portion of wireless power coil are arranged on laser by the present invention
Area of space between emitter and laser pickoff, makes full use of vacant space, shape
Become highly integrated integral structure, not only make overall structure compacter, but also can enter
One step reduces the volume of device.
Accompanying drawing explanation
Reader is after the detailed description of the invention having read the present invention referring to the drawings, it will more
It is well understood to various aspects of the invention.Wherein,
Fig. 1 is shown according to the structure of the laser scanning range-finding device of an embodiment of the present invention
Schematic diagram;
Fig. 2 is shown in the laser scanning range-finding device of Fig. 1, utilize generating laser and
Laser pickoff carries out the schematic diagram of object range finding;And
Fig. 3 A to Fig. 3 C is shown respectively employing full duplex mode, half-duplex mode and either simplex
The principle schematic that mode carries out data transmission.
Detailed description of the invention
In order to make techniques disclosed in this application content more detailed and complete, can refer to attached
Figure and the following various specific embodiments of the present invention, labelling identical in accompanying drawing represents phase
Same or similar assembly.But, it will be understood by those within the art that, hereafter
Provided in embodiment not be used for limit the scope that the present invention is contained.Additionally, it is attached
Figure is used only for schematically being illustrated, and draws not according to its life size.
With reference to the accompanying drawings, the detailed description of the invention of various aspects of the present invention is made further
Detailed description.
Fig. 1 is shown according to the structure of the laser scanning range-finding device of an embodiment of the present invention
Schematic diagram.Fig. 2 is shown in the laser scanning range-finding device of Fig. 1, utilizes Laser emission
Device and laser pickoff carry out the schematic diagram of object range finding.
With reference to Fig. 1, in this embodiment, the laser scanning range-finding device of the present invention includes
Rotating rotational structure and non-rotatable fixed structure.Specifically, knot is rotated
Structure includes receiving plate 1, generating laser 2, skeleton 3, outer rotor 4, laser pickoff 9
With backboard 10.Fixed structure includes stator coil 5, expelling plate 6 and launches fixed platform 7.
Rotational structure is connected to each other by bearing 8 with fixed structure.
Wherein, skeleton 3 can be made up of plastic material.Receive plate 1, generating laser 2,
Outer rotor 4, laser pickoff 9 and backboard 10 are mounted on skeleton 3.Generating laser 2
It is electrically coupled to backboard 10 with laser pickoff 9.When skeleton 3 rotates, Laser emission
Device 2 and laser pickoff 9 rotate together with skeleton 3 thus realize the rotation survey of 360 degree
Away from.Stator coil 5 and expelling plate 6 are mounted on launching fixed platform 7.Stator coil 5
Being arranged at the inner side of outer rotor 4, magnetic pole is arranged on outer rotor 4, and expelling plate 6 is to fixed
Apply the alternating voltage of rule change on subcoil 5 to produce magnetic field, stator coil 5 and
Outer rotor 4 coupling forms thrust or suction makes rotational structure rotate.
As in figure 2 it is shown, this laser scanning range-finding device is round table-like stereochemical structure, bag
Include shell 14 and the side surface around shell 14.Generating laser 2 and laser pickoff 9
It is arranged on the side surface of stereochemical structure.The laser of generating laser 2 transmitting and laser
The plane of the laser composition that receptor 9 receives and the mounting plane of laser scanning range-finding device
Parallel to each other.In detail, from generating laser 2 injection laser arrive testee it
After, reflecting on the surface of testee, the light after reflection is by laser pickoff 9
Received.The light of directive testee and the light reflected from testee surface
Constituting a plane, this plane is parallel with the plane at place during device integral installation.Such as,
When the mounting plane of device is horizontal plane, then generating laser 2 launch light and swash
The light that optical receiver 9 receives is advanced each along horizontal direction.And for example, when the peace of device
When dress plane is vertical, then the light of generating laser 2 transmitting and laser pickoff 9
The light received is advanced each along vertical direction.In other words, laser scanning range-finding device
The angle of mounting plane and horizontal plane, between 0~180 degree, both can be 0 degree, also
Can be 90 degree, it is also possible to be horizontally or vertically outside other angle.
It is pointed out that above-mentioned laser scanning range-finding device also includes wireless power coil
11, utilize wireless power coil to the wireless confession realizing between rotational structure and fixed structure
Electricity.In order to make overall structure compacter, sufficiently and reasonably utilize clearance spaces to be formed
Highly integrated integral structure, reduces the volume of laser scanning range-finding device, nothing further
The emitting portion of line power coil and receiving portion preferably may be disposed at generating laser 2
And the area of space between laser pickoff 9.Additionally, the transmitting of wireless power coil 11
It is partly installed in transmitting fixed platform 7 and is connected to expelling plate 6, wireless power coil 11
Receiving portion be installed on skeleton 3 and be connected to receive plate 1.
At a specific embodiment, rotational structure also includes encoder 12, and fixed structure also wraps
Include coding tooth 13.Wherein, encoder 12 is arranged on reception plate 1, and coding tooth 13 is pacified
It is loaded on the emitting portion of wireless power coil 11, for recording the turned position of rotational structure
And the number of turns.Its operation principle substantially can be expressed as: encoder 12 can be opening and cross section is
The components and parts of groove type, encoder 12 have infrared ray from one end injection get to the other end.Compile
When code tooth 13 and encoder 12 relative motion, owing to coding tooth 13 is impermeable infrared light
Material, when encoding the groove position that tooth 13 enters encoder 12, will block infrared
Line enters the receiving terminal of encoder 12.Consequently, it is possible to have infrared ray enter receiving terminal and
Infrared ray is blocked and enters the switching of receiving terminal and just have recorded the number of encoded tooth 13.
If arranging a special coding tooth as initiating terminal when rotating, encoder 12 detects
To this specific coding tooth through when, record rotational structure have rotated one week (i.e.,
360 degree).Due to radian and time interval the most record, thus rotary speed can be calculated.
Additionally, the rotating speed of rotational structure depends on the dutycycle numerical value of outside input pwm signal.
Fig. 3 A to Fig. 3 C is shown respectively employing full duplex mode, half-duplex mode and either simplex
The principle schematic that mode carries out data transmission.
As is well known, data transmission generally comprise full duplex mode, half-duplex mode and
Simplex mode.As a example by data transmission both sides A, B, wherein, full duplex mode refers to,
While B is launched data by A, and successfully can be connect by A A synchronized transmissions data by B
Receive (as shown in Figure 3A).Half-duplex is then A when B is launched data, and B can only connect
Receive data and data (as shown in Figure 3 B) can not be launched.Full duplex transmission is faster than half-duplex,
Because without waiting for.Simplex mode be then by A to B folk prescription send data, or by B to
A folk prescription sends data (as shown in Figure 3 C).
At a specific embodiment, the present invention uses full duplex mode to carry out wireless data transmission.
Such as Fig. 3 A, expelling plate 6 includes the first light emitting diode 301 and the first sense diode 303,
Receive plate 1 and include the second light emitting diode 401 and the second sense diode 403.Wherein,
First light emitting diode 301 and the second sense diode 403 form first and are wirelessly transferred road
Footpath, the first sense diode 303 and the second light emitting diode 401 form the second wireless biography
Defeated path, and the first wireless propagation path and the second wireless propagation path are real in a synchronous manner
Existing full-duplex data transmission.First light emitting diode 301 and the second light emitting diode 401
There is different spectrum.Such as, the first light emitting diode 301 has a first wave length light
Spectrum, the second light emitting diode 401 has a second wave length spectrum, the first sense diode
The light of 303 sensing second wave length spectrum, the second sense diode 403 senses first wave length light
Spectrum light, wherein first wave length spectrum be different from second wave length spectrum thus realize wireless entirely
Duplex data transfer.
Using the laser scanning range-finding device of the present invention, it includes rotating rotational structure
And non-rotatable fixed structure, rotational structure include receiving plate, generating laser,
Skeleton, outer rotor, laser pickoff and backboard, fixed structure includes stator coil, sends out
Penetrating plate and launch fixed platform, rotational structure is connected to each other by bearing with fixed structure.
Receive plate, generating laser, outer rotor, laser pickoff and backboard and be installed on skeleton,
Stator coil and expelling plate are installed on transmitting fixed platform, the laser of laser transmitter projects
The plane formed with the laser of laser pickoff reception and the installation of laser scanning range-finding device
Plane is parallel to each other.Compared to prior art, the laser scanning range-finding device of the present invention is adopted
By wireless power and full-duplex data transmission means, it is to avoid such as slip ring is powered and communication
The defect that produced service life is shorter.Furthermore, the present invention magnetic by electromagnetic induction
Media drive, compares existing belt transmission or gear drive decreases volume and noise.
Additionally, emitting portion and the receiving portion of wireless power coil are arranged on laser by the present invention
Area of space between emitter and laser pickoff, makes full use of vacant space, shape
Become highly integrated integral structure, not only make overall structure compacter, but also can enter
One step reduces the volume of device.
Above, the detailed description of the invention of the present invention is described with reference to the accompanying drawings.But, this
Those of ordinary skill in field is it is understood that without departing from the spirit and scope of the present invention
In the case of, it is also possible to the detailed description of the invention of the present invention is made various change and replacement.
These changes and replacement all fall in claims of the present invention limited range.
Claims (12)
1. a laser scanning range-finding device, it is characterised in that described laser scanning and ranging
Device includes rotating rotational structure and non-rotatable fixed structure, described rotation
Structure include receive plate (1), generating laser (2), skeleton (3), outer rotor (4),
Laser pickoff (9) and backboard (10), described fixed structure include stator coil (5),
Expelling plate (6) and transmitting fixed platform (7), described rotational structure and described fixed structure
It is connected to each other by bearing (8),
Wherein, described reception plate (1), generating laser (2), outer rotor (4), swash
Optical receiver (9) and backboard (10) are mounted on skeleton (3), described stator coil (5)
Being mounted on launching fixed platform (7) with expelling plate (6), generating laser (2) is sent out
The plane of the laser composition that the laser penetrated and laser pickoff (9) receive is swept with described laser
The mounting plane retouching range unit is parallel to each other.
Laser scanning range-finding device the most according to claim 1, it is characterised in that
Described laser scanning range-finding device also includes wireless power coil (11), is arranged at laser and sends out
Area of space between emitter (2) and laser pickoff (9).
Laser scanning range-finding device the most according to claim 2, it is characterised in that
The emitting portion of described wireless power coil (11) be installed on transmitting fixed platform (7) and
Being connected to expelling plate (6), the receiving portion of described wireless power coil (11) is installed on bone
Frame (3) and be connected to receive plate (1).
Laser scanning range-finding device the most according to claim 3, it is characterised in that
Described rotational structure also includes encoder (12), and described fixed structure also includes encoding tooth
(13), wherein, encoder (12) is arranged in reception plate (1), coding tooth (13)
It is installed on the emitting portion of wireless power coil (11), for recording described rotational structure
Turned position and the number of turns.
Laser scanning range-finding device the most according to claim 1, it is characterised in that
Generating laser (2) and laser pickoff (9) are electrically coupled to backboard (10).
Laser scanning range-finding device the most according to claim 1, it is characterised in that
The rotating speed of described rotational structure depends on the dutycycle numerical value of the pwm signal of outside input.
Laser scanning range-finding device the most according to claim 1, it is characterised in that
Stator coil (5) is arranged at the inner side of outer rotor (4), and magnetic pole is arranged at outer rotor (4)
On, expelling plate (6) to the upper alternating voltage applying rule change of stator coil (5) with
Producing magnetic field, stator coil (5) couples formation thrust with outer rotor (4) or suction makes
Obtain described rotational structure to rotate.
Laser scanning range-finding device the most according to claim 1, it is characterised in that
Expelling plate (6) includes the first light emitting diode and the first sense diode, receives plate (1)
Including the second light emitting diode and the second sense diode,
Wherein, described first light emitting diode and described second sense diode form first
Wireless propagation path, and described first sense diode and described second light emitting diode
Form the second wireless propagation path, and described first wireless propagation path and described second nothing
Line transmission path realizes full-duplex data transmission in a synchronous manner.
Laser scanning range-finding device the most according to claim 8, it is characterised in that
Described first light emitting diode has a first wave length spectrum, described second light emitting diode
Having a second wave length spectrum, described first sense diode senses described second wave length light
The light of spectrum, the light of the described second sense diode described first wave length spectrum of sensing, wherein,
Described first wave length spectrum is different from described second wave length spectrum.
Laser scanning range-finding device the most according to claim 1, it is characterised in that
The mounting plane of described laser scanning range-finding device and the angle of horizontal plane are between 0~180 degree
Between.
11. laser scanning range-finding devices according to claim 1, it is characterised in that
Described laser scanning range-finding device is round table-like stereochemical structure.
12. laser scanning range-finding devices according to claim 11, it is characterised in that
Generating laser (2) and laser pickoff (9) are arranged at the side of described stereochemical structure
On surface.
Priority Applications (1)
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CN201610290083.1A CN105866785B (en) | 2016-05-04 | 2016-05-04 | A kind of laser scanning range-finding device |
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CN201610290083.1A CN105866785B (en) | 2016-05-04 | 2016-05-04 | A kind of laser scanning range-finding device |
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CN105866785B CN105866785B (en) | 2019-06-28 |
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Cited By (7)
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CN106249248A (en) * | 2016-08-31 | 2016-12-21 | 北京创想智控科技有限公司 | Rotary optical scanning range unit and method |
CN106655535A (en) * | 2016-11-07 | 2017-05-10 | 深圳市镭神智能系统有限公司 | 360-DEG TOF laser scanning radar based on wireless transmission |
WO2017140163A1 (en) * | 2016-02-17 | 2017-08-24 | 上海思岚科技有限公司 | Laser ranging apparatus |
WO2017197878A1 (en) * | 2016-05-19 | 2017-11-23 | 上海思岚科技有限公司 | Laser scanning range unit |
CN108120431A (en) * | 2017-12-12 | 2018-06-05 | 扬州博佧光电科技有限公司 | Laser leveler |
CN108885248A (en) * | 2017-12-18 | 2018-11-23 | 深圳市大疆创新科技有限公司 | The wireless rotating device and unmanned plane of radar installations, radar |
CN110618414A (en) * | 2018-06-19 | 2019-12-27 | 广东技术师范学院 | Laser radar scanner based on optomagnetic mode |
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WO2017140163A1 (en) * | 2016-02-17 | 2017-08-24 | 上海思岚科技有限公司 | Laser ranging apparatus |
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CN106655535A (en) * | 2016-11-07 | 2017-05-10 | 深圳市镭神智能系统有限公司 | 360-DEG TOF laser scanning radar based on wireless transmission |
CN108120431A (en) * | 2017-12-12 | 2018-06-05 | 扬州博佧光电科技有限公司 | Laser leveler |
CN108885248A (en) * | 2017-12-18 | 2018-11-23 | 深圳市大疆创新科技有限公司 | The wireless rotating device and unmanned plane of radar installations, radar |
CN108885248B (en) * | 2017-12-18 | 2023-03-31 | 深圳市大疆创新科技有限公司 | Radar device, wireless rotary device of radar and unmanned aerial vehicle |
CN110618414A (en) * | 2018-06-19 | 2019-12-27 | 广东技术师范学院 | Laser radar scanner based on optomagnetic mode |
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