CN107748371A - Unmanned laser radar system - Google Patents
Unmanned laser radar system Download PDFInfo
- Publication number
- CN107748371A CN107748371A CN201710929187.7A CN201710929187A CN107748371A CN 107748371 A CN107748371 A CN 107748371A CN 201710929187 A CN201710929187 A CN 201710929187A CN 107748371 A CN107748371 A CN 107748371A
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- China
- Prior art keywords
- laser
- blue light
- mirror
- central processing
- unmanned
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Classifications
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- 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
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- 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
Abstract
The present invention relates to unmanned technical field, more particularly to a kind of unmanned laser radar system, including：Central processing circuit, blue light device, laser, band filters, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, electric system.Advantage：The problem of being easily disturbed system solves the problem unmanned control device, complicated, realize unmanned control device automation, jamproof, light structure Intelligent Recognition.
Description
Technical field
The present invention relates to unmanned technical field, more particularly to a kind of unmanned laser radar system.
Background technology
With the further development and the quickening of urbanization process of social economy, the popularization of motor vehicle and trip number
Substantial increase, the road network traffic capacity is difficult to the needs for meeting that the volume of traffic is growing, causes traffic accident to take place frequently, congested in traffic
The present situations such as aggravation.The safety and conevying efficiency problem of highway communication become to become increasingly conspicuous, many transformed thinkings of country, from
Extension road network scale is gradually transferred to using new and high technology to transform existing road traffic system and management system.Intelligent automobile
It is an important component in intelligent transportation system, intelligent automobile collection environment sensing, programmed decision-making, more grades auxiliary drive
It is integrated etc. multi-functional, concentration has used modern sensing, computer, communication, information fusion, artificial intelligence and the skill such as automatically controlled
Art, environment and state that can be residing for autonomous identifying vehicle, analysis be made according to the information obtained by each sensor and judged, is carried
It is quite varied in the application of civilian, military and space industry etc. for the foundation of next step decision-making.
The environment of operation of the unmanned Intelligent internet of things equipment such as unmanned plane, unmanned vehicle has uncertain and complexity,
Need constantly to detect surrounding environment, avoid colliding with barrier.Traditional unmanned plane uses sound wave Intelligent Recognition
Technical scheme, a kind of method are the comprehensive realization scanning of radar itself, and another method is to use phased-array radar, both sides
Case needs to increase complicated motor device so as to produce extra load.Traditional unmanned vehicle uses Visual intelligent identification technology side
Case, using the mature technology of image procossing, but easily receive the influence of the factors such as light, dust, smog, it is impossible to meet that whole day is waited to welcome sb.'s presence
Sail needs.
In summary, it is necessary to design a kind of jamproof, light structure applied to unmanned plane, unmanned vehicle Intelligent Recognition
Unmanned laser radar system.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes a kind of unmanned laser radar system, solved unmanned
The problem of that equipment is easily disturbed, complicated.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention proposes a kind of unmanned laser radar system, including：Central processing circuit, blue light device, laser, frequency
Band filter, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, electric system, the electric system
Including Laser Driven electric system, blu-ray drives electric system；
The band filters, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, centre
Reason circuit is sequentially connected electrically, and the blue light device, laser are connected with central processing circuit simultaneously, and is connected simultaneously with band filters
Connect；
The central processing circuit starts the blue light device by sending instruction, laser is started working, the diode
Array detector is transmitted into the central processing circuit to the picture signal of capture, and the central processing circuit is to picture signal
Analyzed in real time, and export analysis result.
Preferably, the band filters include optical filtering, wavelength division multiplexer, collimating mirror, and the optical filtering connects with the time
The wavelength division multiplexer is connected to, and optical signal is transmitted to the PBS water chestnuts mirror by the collimating mirror.
Preferably, the filter includes all-pass optical filtering, the bandpass filter mirror of light connects in parallel, the bandpass filter mirror
For carrying out narrow-band-filter to blue light, the all-pass optical filtering is used to filter to laser broadband.
Preferably, it is saturating to include half-wave circulator, vacuum resonator, fibre optic repeater and single photon for the monochromatic filter
Mirror, the vacuum resonator, fibre optic repeater, monochromatic light sub-lens pass sequentially through optical fiber connection, and the half-wave circulator is placed in PBS
Between water chestnut mirror and vacuum resonator.
Preferably, the monochromatic light sub-lens receive the optical signal of the fibre optic repeater, and carry out monochromatic light sieve to optical signal
After choosing, correction, transmit to the PDAD.
Preferably, the Laser Driven electric system includes laser drive circuit, the laser motor being sequentially connected, described to swash
Photoelectricity machine is connected with the collimating mirror in band filters, and the laser drive circuit receives the camera lens from central processing circuit and become
Burnt signal command, and pass through the varifocal of collimating mirror in laser motor adjustment band filters.
Preferably, the blu-ray drives electric system includes blu-ray drives circuit, the blue light motor being sequentially connected, the indigo plant
Photoelectricity machine is connected with the collimating mirror in band filters, and the blu-ray drives circuit receives the camera lens from central processing circuit and gathered
Burnt signal command, and blue light motor by adjust the focusing of collimating mirror in band filters away from.
Preferably, the central processing circuit model OMAP3635, the circuit：By send instruct start blue light device,
Laser is started working, and drives the blue light device, laser to produce the light for meeting intensity requirement, and accurate light is carried out to analysis target
Beam is launched；The signal captured is analyzed, and exports analysis result.
Preferably, the laser includes laser diode, the laser constant-current circuit being connected with each other, the laser Constant Electric Current
Road is connected with central processing circuit, and the laser diode is connected with the all-pass optical filtering in band filters, the laser two
Pole pipe performs laser constant-current circuit and receives the laser intensity signal instruction from central processing circuit, adjusts laser power and passes through
All-pass optical filtering carries out beam emissions.
Preferably, the blue light device includes blue light diode, the blue light constant-current circuit being connected with each other, the blue light Constant Electric Current
Road is connected with central processing circuit, and the blue light diode is connected with the bandpass filter mirror in band filters, the blue light two
Pole pipe performs blue light constant-current circuit and receives the blue light strength signal instruction from central processing circuit, adjusts blue power and passes through
Bandpass filter mirror carries out beam emissions.
Beneficial effects of the present invention：The present invention unmanned laser radar system, solve unmanned control device easily by
The problem of interference, complicated, realize unmanned control device automation, jamproof, light structure Intelligent Recognition.
Brief description of the drawings
With accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the unmanned example structure schematic diagram of laser radar system one of the present invention.
Embodiment
Technical solution of the present invention is further described with embodiment below in conjunction with the accompanying drawings, this is the preferable reality of the present invention
Apply example.A kind of unmanned laser radar system provided in an embodiment of the present invention can apply to Internet of Things intelligent identification technology neck
Each scene in domain, including but not limited to 2G GSM, 3G CDMA, 4G LTE/LTE-A, 5G eMBB mobile communication, collection
Group communication, satellite communication, laser communication, fiber optic communication, DTV, radio frequency identification, power carrier, unmanned vehicle, unmanned plane, thing
The systems such as networking, radar, the embodiment of the present invention are not particularly limited to this.
As shown in figure 1, the present invention proposes a kind of unmanned laser radar system, including：Central processing circuit, blue light
Device, laser, band filters, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, electric system,
Electric system includes Laser Driven electric system, blu-ray drives electric system；
Band filters, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, central processing electricity
Road is sequentially connected electrically, and blue light device, laser are connected with central processing circuit simultaneously, and are connected simultaneously with band filters；
In the present embodiment, central processing circuit sends instruction startup white light device by time-multiplexed mode, laser is opened
Beginning work；Wherein, time division multiplexing in the present embodiment, is advantageous to save instruction resource, and improve operating efficiency.
In transmitting terminal, the laser provided with offer continuous spectrum, including the laser diode of interconnection, laser Constant Electric Current
Road, laser constant-current circuit are connected with central processing circuit, and laser diode is connected with the all-pass optical filtering in band filters, are swashed
Optical diode performs laser constant-current circuit and receives the laser intensity signal instruction from central processing circuit, and adjustment laser power is simultaneously
Beam emissions are carried out by all-pass optical filtering.
In transmitting terminal, the blue light device of narrow-band, including the blue light diode of interconnection, blue light Constant Electric Current are also provided with
Road, blue light constant-current circuit are connected with central processing circuit, and blue light diode is connected with the bandpass filter mirror in band filters, blue
Optical diode performs blue light constant-current circuit and receives the blue light strength signal instruction from central processing circuit, and adjustment blue power is simultaneously
Beam emissions are carried out by bandpass filter mirror.
The spectrum excited passes through the pretreatment of band filters, and band filters include optical filtering, wavelength division multiplexer, collimation
Mirror, optical filtering simultaneously to wavelength division multiplexer, and by optical signal by collimating mirror transmitted to PBS water chestnut mirrors by light connects.Wherein, filter
All-pass optical filtering, bandpass filter mirror including light connects in parallel, all-pass optical filtering are used to carry out laser all-pass optical filtering, band logical filter
Light microscopic is used for blue light bandpass filter.Continuous spectrum laser sends broadband light wave and enters band filters, utilizes all-pass
Optical filtering can be restricted to required frequency band.The continuous spectrum that blue light sends narrow-band can scan most analysis wavelength, band logical
Filter may be selected one or more of wavelength by, be advantageous to improve spectrum purity.Wavelength division multiplexer provides required pair
Light is changed into directional light by spectrum channel, collimating mirror, obtains the spectrum to be balanced each other with incident direction.
Optical signal is transmitted to PBS water chestnut mirrors by collimating mirror, and a part of light is transmitted into analysis target, and other light are anti-
Penetrate loss.Direct projection reflects back into PBS water chestnut mirrors to the light in analysis target, and is reflexed to again through PBS water chestnut mirrors in half-wave circulator.
In receiving terminal, half-wave circulator receives the optical signal of PBS water chestnut mirrors, and half-wave circulator revolves to required wavelength
Turn, choose required wave spectrum, non-rotating ripple will be ended.Vacuum resonator under vacuum conditions, allow needed for single-frequency light
Spectrum passes through, and is purified.
Due to the loss of band filters, half-wave circulator and vacuum resonator, the energy of light is difficult to directly pass through monochrome
Filter is irradiated to progress effective detection in sensing apparatus and carries out relaying amplification, it is necessary to which light moves repeater again, and passes through soft light
Fibre is transmitted.
In the present embodiment, it is saturating that monochromatic filter includes half-wave circulator, vacuum resonator, fibre optic repeater and single photon
Mirror, vacuum resonator, fibre optic repeater, monochromatic light sub-lens pass sequentially through optical fiber connection, half-wave circulator be placed in PBS water chestnuts mirror with it is true
Between empty resonator.Wherein, the optical signal of monochromatic light sub-lens reception optical fiber repeater, and monochromatic light screening is carried out to optical signal, rectified
After just, transmit to PDAD.PDAD is transmitted to the picture signal of capture to central processing electricity
Lu Zhong, central processing circuit is analyzed picture signal in real time, and exports analysis result.
In the present embodiment, central processing circuit model OMAP3635, the circuit：By send instruct start blue light device,
Laser is started working, and driving blue light device, laser produce the light for meeting intensity requirement, and accurate light beam hair is carried out to analysis target
Penetrate；The signal captured is analyzed, and exports analysis result.Wherein, Laser Driven electric system includes what is be sequentially connected
Laser drive circuit, laser motor, laser drive circuit are connected with the collimating mirror in band filters, and laser drive circuit receives
Lens zoom signal command from central processing circuit, and indicate the zoom of collimating mirror in laser motor adjustment band filters
Away from.Blu-ray drives electric system includes blu-ray drives circuit, the blue light motor being sequentially connected, and blu-ray drives circuit filters with frequency band
Collimating mirror connection in device, blu-ray drives circuit receives the lens focus signal command from central processing circuit, and indicates indigo plant
Photoelectricity machine adjustment band filters in collimating mirror focusing away from.
In a word, unmanned laser radar system provided by the invention, using the laser of broadband continuum, narrow-band
Laser, for specific different analysis Object selection different wave lengths, obtain the imaging of EO-1 hyperion high-resolution confocal, tie simultaneously
Closing light imaging technique, high light spectrum image-forming technology, reflective conjugate focus imaging technique are combined, form multispectral optical imagery
System, deficiency of the single modality in terms of unmanned laser radar system is compensate for, it is double compared with single-mode technology
Mould technology provides more complete information, improves accuracy and specificity of unmanned laser radar system etc., realize it is multispectral,
High-resolution bimodal optical molecular image, new technological means is provided for the research of unmanned laser radar system, is had
Beneficial to the raising of the technical merit of unmanned laser radar system.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of unmanned laser radar system, including central processing circuit, it is characterised in that also include：Blue light device, laser
Device, band filters, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, electric system, the electricity
Machine system includes Laser Driven electric system, blu-ray drives electric system；
The band filters, PBS water chestnuts mirror, monochromatic filter, PDAD, image decoder, central processing electricity
Road is sequentially connected electrically, and the blue light device, laser are connected with central processing circuit simultaneously, and are connected simultaneously with band filters；
The central processing circuit starts the blue light device by sending instruction, laser is started working, the diode array
Detector is transmitted into the central processing circuit to the picture signal of capture, and the central processing circuit is carried out to picture signal
Analysis in real time, and export analysis result.
2. unmanned laser radar system according to claim 1, it is characterised in that the band filters include filter
Light microscopic, wavelength division multiplexer, collimating mirror, light connects pass through institute to the optical filtering to the wavelength division multiplexer, and by optical signal simultaneously
Collimating mirror is stated to transmit to the PBS water chestnuts mirror.
3. unmanned laser radar system according to claim 2, it is characterised in that the filter includes light in parallel
All-pass optical filtering, the bandpass filter mirror of connection, the bandpass filter mirror are used to carry out blue light narrow-band-filter, and the all-pass filters
Mirror is used to filter to laser broadband.
4. unmanned laser radar system according to claim 1, it is characterised in that the monochromatic filter includes half
Ripple circulator, vacuum resonator, fibre optic repeater and monochromatic light sub-lens, the vacuum resonator, fibre optic repeater, single photon are saturating
Mirror passes sequentially through optical fiber connection, and the half-wave circulator is placed between PBS water chestnuts mirror and vacuum resonator.
5. unmanned laser radar system according to claim 4, it is characterised in that the monochromatic light sub-lens receive institute
State the optical signal of fibre optic repeater, and after carrying out monochromatic light screening, correction to optical signal, transmit to the Diode Array Detector
Device.
6. unmanned laser radar system according to claim 1, it is characterised in that the Laser Driven electric system
Including laser drive circuit, the laser motor being sequentially connected, the laser motor is connected with the collimating mirror in band filters, institute
State laser drive circuit and receive the lens zoom signal command from central processing circuit, and frequency band is adjusted by laser motor and filtered
The varifocal of collimating mirror in light device.
7. unmanned laser radar system according to claim 1, it is characterised in that the blu-ray drives electric system
Including blu-ray drives circuit, the blue light motor being sequentially connected, the blue light motor is connected with the collimating mirror in band filters, institute
State blu-ray drives circuit and receive the lens focus signal command from central processing circuit, and blue light motor is filtered by adjusting frequency band
In light device the focusing of collimating mirror away from.
8. according to any described unmanned laser radar systems of claim 1-7, it is characterised in that the central processing electricity
Road model OMAP3635, the circuit：By send instruct start blue light device, laser is started working, drive the blue light device,
Laser produces the light for meeting intensity requirement, and accurate beam emissions are carried out to analysis target；The signal captured is analyzed,
And export analysis result.
9. unmanned laser radar system according to claim 8, it is characterised in that the laser includes mutually interconnecting
Laser diode, the laser constant-current circuit connect, the laser constant-current circuit are connected with central processing circuit, the laser diode
It is connected with the all-pass optical filtering in band filters, the laser diode performs the reception of laser constant-current circuit and comes from central processing
The laser intensity signal instruction of circuit, adjust laser power and beam emissions are carried out by all-pass optical filtering.
10. unmanned laser radar system according to claim 8, it is characterised in that the blue light device includes mutual
Blue light diode, the blue light constant-current circuit of connection, the blue light constant-current circuit are connected with central processing circuit, the pole of blue light two
Pipe is connected with the bandpass filter mirror in band filters, and the blue light diode performs the reception of blue light constant-current circuit and comes from centre
The blue light strength signal instruction of circuit is managed, blue power is adjusted and beam emissions is carried out by bandpass filter mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929187.7A CN107748371A (en) | 2017-10-09 | 2017-10-09 | Unmanned laser radar system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710929187.7A CN107748371A (en) | 2017-10-09 | 2017-10-09 | Unmanned laser radar system |
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| Publication Number | Publication Date |
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| CN107748371A true CN107748371A (en) | 2018-03-02 |
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|---|---|---|---|
| CN201710929187.7A Pending CN107748371A (en) | 2017-10-09 | 2017-10-09 | Unmanned laser radar system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005046095A1 (en) * | 2003-11-07 | 2005-05-19 | Perlos Technology Oy | All-optical signal processing method and device |
| CN2724635Y (en) * | 2004-09-13 | 2005-09-14 | 钟惟德 | Ultraviolet laser spectrum iagnostic instrument for bladder tumor characteristic spectrum |
| CN101598855A (en) * | 2008-06-02 | 2009-12-09 | 深圳市科创数字显示技术有限公司 | Laser projection imaging system |
| CN103954971A (en) * | 2014-05-22 | 2014-07-30 | 武汉大学 | On-board colorful three-dimensional scanning laser radar |
-
2017
- 2017-10-09 CN CN201710929187.7A patent/CN107748371A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005046095A1 (en) * | 2003-11-07 | 2005-05-19 | Perlos Technology Oy | All-optical signal processing method and device |
| CN2724635Y (en) * | 2004-09-13 | 2005-09-14 | 钟惟德 | Ultraviolet laser spectrum iagnostic instrument for bladder tumor characteristic spectrum |
| CN101598855A (en) * | 2008-06-02 | 2009-12-09 | 深圳市科创数字显示技术有限公司 | Laser projection imaging system |
| CN103954971A (en) * | 2014-05-22 | 2014-07-30 | 武汉大学 | On-board colorful three-dimensional scanning laser radar |
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