CN106448394A - Laser communication demonstration apparatus - Google Patents
Laser communication demonstration apparatus Download PDFInfo
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- CN106448394A CN106448394A CN201611047093.9A CN201611047093A CN106448394A CN 106448394 A CN106448394 A CN 106448394A CN 201611047093 A CN201611047093 A CN 201611047093A CN 106448394 A CN106448394 A CN 106448394A
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- laser
- transmitter
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- demonstrating
- laser communication
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- 238000004891 communication Methods 0.000 title claims abstract description 41
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000002452 interceptive effect Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000035922 thirst Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000004247 hand Anatomy 0.000 description 3
- 230000019771 cognition Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/22—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for optics
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Optics & Photonics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a laser communication demonstration apparatus, belonging to a science popularization education instrument for optics. The laser communication demonstration apparatus is used for demonstrating the optical technology in a science and technology museum. The space laser communication demonstration apparatus includes a transmitter and a receiver, wherein the transmitter comprises a near-infrared laser, a visible laser, beam combining device, and a light emitting antenna; the receiver comprises a light receiving antenna, a beam splitting device, a baffle plate and a detector; the transmitter is connected with a camera through a data line; the receiver is connected with a television through a data line; and when a spectator uses his/her hand to block out a laser beam, a transmission signal is interrupted and the television does not display the frame taken by the camera. The laser communication demonstration apparatus utilizes the interactive experience to enhance the active thirst for knowledge of the spectator, and supplies a gap that a science and technology museum is short of exhibits related to the laser communication technology.
Description
Technical field
The present invention relates to a kind of laser communication apparatus for demonstrating, is the optics sci-tech exhibit that puts on display for science and technology center, belongs to light
Learn education quasi-instrument.
Background technology
Laser communication technology is by the use of laser light wave as carrier wave, using air or free space as transmission channel, multiple
The newest communication technology of big data quantity communication is realized between terminal.Compared with microwave communication and fiber optic communication, laser communication has
The advantages of maneuverability, operating cost are low, bandwidth, anti-electromagnetic interference capability are strong.Laser communication is not take up radio-frequency spectrum money
Source, do not need demand frequency license, do not lay the problem that pipeline excavates road, set up flexible, can complete ground-to-ground, right
Empty, air to air etc. multiple fiber optic communications cannot traffic carried task.
At this stage, laser communication is usually used in the fields such as the earth-intersatellite communication, ground-plane-to-plane communication, not widely
It is applied to the daily life communications field.The public is relatively low to the cognition degree of laser space communication.Electromagnetic wave passes through the less quilt of atmosphere
Reflection, absorption and scattering, and the high wave band of absorbance is referred to as atmospheric window.Near infrared light is in atmospheric window.For avoiding swashing
Optical attenuation is too fast, reaches the purpose of long range propagation information, and common laser communication device uses near-infrared laser as signal
Carrier.Near-infrared laser cannot be arrived by eye-observation.The public cannot intuitively observe, experience the connection of laser space communication with
Blocking.As cognition degree is low, show the reasons such as difficulty, domestic and international science and technology center field lack take into account intellectual with interactive for
The sci-tech exhibit of spacial flex laser communication technology.
Content of the invention
The technical problem to be solved in the present invention is provided a kind of simple structure, is easy to the laser communication of observation to the general public
Apparatus for demonstrating, and the device possess interesting, interactive and scientific.
For solving the above problems, the invention provides a kind of for drilling to the laser communication of public display laser communication technology
Showing device, the device includes transmitter and receiver.Transmitter is placed in opposite directions with receiver.Transmitter includes near-infrared laser
Device, visible laser, beam merging apparatus（Such as plated film lens, prism etc.）, light transmitting antenna.Receiver include light receiver aerial,
Beam splitting arrangement（Such as plated film lens, Amici prism etc.）, baffle plate, detector.After the modulated device of input signal, drive processes, drive
Dynamic near infrared laser, launches the near-infrared laser bundle comprising modulated signal.Visible laser is launched without modulated signal
Continuous laser.The near-infrared laser bundle that the visible laser beam of visible laser transmitting is launched near infrared laser is by closing
Bundle device is combined into a branch of coaxial laser bundle, through light transmitting antenna, projects from transmitter.Comprising iraser and visible laser
Laser beam is propagated in atmosphere, directive receiver.Receiver receives synthesized laser beam, is first assembled by light receiver aerial, then by
Beam splitting arrangement, laser beam is reduced to the visible laser beam without modulated signal and the near-infrared laser comprising modulated signal
Bundle.Visible laser beam is blocked by baffle plate, prevents from projecting receiver.Near-infrared laser beam containing modulated signal is to detection
Device, detector extracts the modulated signal included by near-infrared laser bundle.Device, manipulator are processed signal after filtering, are reduced to
With the identical output signal of input signal.
Used as the first improvement of the present invention, described laser communication apparatus for demonstrating can also include reflecting mirror.Transmitter
With receiver laid parallel.Two-face mirror is positioned in 90 ° of angles directly over transmitter and receiver.What transmitter was launched includes
Two secondary reflection of reflected mirror injects receiver to the laser beam of iraser and visible laser in atmosphere.
The deformation of the first improvement project, number of mirrors is no less than 1 piece, it is ensured that the laser beam that transmitter is projected is through institute
There is reflecting mirror to launch, finally inject receiver.
Used as a modification of the present invention, transmitter can use data wire and photographic head, mike, signal generator etc.
Signal source connects, and correspondingly receiver is connected with signal receivers such as TV, speaker, oscillographs.When transmitter and photographic head
When connection, receiver are connected with television set, the picture that photographic head is collected on television set, can be assumed in real time.
The present invention will be seen that light as light is indicated, near-infrared laser serves, as flashlight, the work for optimizing demonstrating effect
With, make spectators produce visible light transmissions illusion.Spectators' handss or other object breaks laser beams, receiver can not be detected
To laser beam, transmission signal is interrupted, reaches laser communication apparatus for demonstrating and possess interactive purpose, further enhances spectators' ginseng
With feel, excite spectators' thirst for knowledge.
Description of the drawings
Fig. 1 is the schematic diagram of laser communication the first embodiment of apparatus for demonstrating.
Fig. 2 is the schematic diagram of laser communication second embodiment of apparatus for demonstrating.
Fig. 3 is the schematic diagram of laser communication the third embodiment of apparatus for demonstrating.
Fig. 4 is laser communication apparatus for demonstrating workflow schematic diagram.
Wherein：1st, transmitter, 2, receiver, 3, visible light lasers and near-infrared laser close the laser beam after bundle, and 41, reflection
Mirror, 42, reflecting mirror, 5, photographic head, 51 data wires connected with transmitter, 6, television set, 61 data connected with receiver
Line.
Specific embodiment
Below in conjunction with the accompanying drawings three kinds of embodiments of laser communication apparatus for demonstrating of the present invention are elaborated.
In the first embodiment, as shown in figure 1, laser communication apparatus for demonstrating includes transmitter 1 and receiver 2.Device
Before demonstration work, transmitter and receiver is positioned on level table opposite to each other, it is ensured that light transmitting antenna and light receiver aerial water
Flat coaxial.
As shown in figure 4, in transmitter, it is seen that light laser transmitting only serves the continuous visible laser beam of indicative function.
The modulated device of input signal is processed, and after input driver, drives near infrared laser, is produced the near-infrared comprising modulated signal and is swashed
Light beam.Beam merging apparatus will be seen that ray laser bundle is combined into a branch of coaxial laser near infrared light laser beam, expand through light transmitting antenna
Transmitter is projected after shaping.Air is used as the transmission channel of laser beam.After laser beam 3 propagates a segment distance in atmosphere, connect
Receipts machine is received.Light receiver aerial is to the laser beam convergence shaping that receives, then the visible light lasers that will be indicated by beam splitting arrangement
The near-infrared laser bundle of bundle and transmission signal separates.Visible ray directive baffle plate, stops laser propagation.Detector receives near-infrared
Laser beam, and extract the signal that near-infrared laser bundle includes.The process such as signal is filtered, modulation, are finally reduced into and input
The identical output signal of signal.
During viewing laser communication demonstration, spectators are observed that input signal is identical with output signal.Spectators
Stop, with handss or other objects, the laser 3 that transmitter is launched, transmission signal is interrupted, and 2 no signal of receiver is exported.
In second embodiment, as shown in Fig. 2 laser communication apparatus for demonstrating also includes reflecting mirror 41 and reflecting mirror 42.
Transmitter 1 and 2 laid parallel of transmitter.Reflecting mirror 41 is positioned over the surface of transmitter 1, and reflecting mirror 42 is positioned over receiver 2
Surface.Transmitting mirror 41 is 90 ° with the angle of reflecting mirror 42.The reflected mirror 41 of laser beam that transmitter 1 sends and reflecting mirror
42 reflection, injects receiver 2.
In the improved procedure of second embodiment, number of mirrors is no less than 1 piece, 3 warp of laser beam that transmitter 1 is launched
Reflecting mirror multiple reflections, inject receiver 2.
In the third embodiment, as shown in figure 4, transmitter 1 is connected with photographic head 5 with data wire 51, number used by receiver 2
It is connected with television set 6 according to line 61.Show the picture that photographic head 5 is photographed on television set 6.Spectators' handss or other object breaks swash
Light beam 3, receiver 2 does not receive the signal of the transmission of laser beam 3, no picture on TV 6.After obstacle is taken away, laser beam 3 is again
Secondary inject receiver 2 from transmitter 1, TV 6 recovers to show the picture of the shooting of photographic head 5.
In the improved procedure of the third embodiment, transmitter 1 can also pass through data wire and mike, signal generator
Connect etc. signal source, correspondingly receiver 2 is connected with signal receivers such as speaker, oscillographs by data wire.
Claims (6)
1. a kind of laser communication apparatus for demonstrating, including transmitter and receiver, it is characterised in that transmitter includes infrared laser
And visible laser, near infrared band flashlight can be launched light is indicated with visible light wave range.
2. laser communicationses apparatus for demonstrating according to claim 1, is characterized in that described transmitter, comprising beam merging apparatus, connects
Receipts machine includes beam splitting arrangement.
3. laser communicationses apparatus for demonstrating according to claim 2, is characterized in that described laser communication apparatus for demonstrating includes
Reflecting mirror.
4. laser communicationses apparatus for demonstrating according to claim 3, is characterized in that the number of mirrors for 2, in 90 ° of angles
It is respectively placed in directly over transmitter and receiver.
5. laser communicationses apparatus for demonstrating according to claim 2, is characterized in that described laser communication apparatus for demonstrating includes
Video camera, is connected with transmitter with data wire.
6. laser communicationses apparatus for demonstrating according to claim 5, is characterized in that described laser communication apparatus for demonstrating includes
Television set, is connected with receiver with data wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047093.9A CN106448394A (en) | 2016-11-25 | 2016-11-25 | Laser communication demonstration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047093.9A CN106448394A (en) | 2016-11-25 | 2016-11-25 | Laser communication demonstration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448394A true CN106448394A (en) | 2017-02-22 |
Family
ID=58219944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611047093.9A Pending CN106448394A (en) | 2016-11-25 | 2016-11-25 | Laser communication demonstration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448394A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457154A (en) * | 2003-06-12 | 2003-11-19 | 东南大学 | Light beam divergent angle variable laser communications spire device without optical fibre and controlling method thereof |
| CN102332953A (en) * | 2011-05-25 | 2012-01-25 | 北京理工大学 | Method and system for carrying out laser communication by utilizing coding imaging mode |
| CN203465882U (en) * | 2013-08-22 | 2014-03-05 | 滨州学院 | Laser communication demonstration instrument |
| CN203706505U (en) * | 2013-12-24 | 2014-07-09 | 桂林聚联科技有限公司 | Multifunctional optical communication teaching demonstration experimental device |
| CN105321412A (en) * | 2015-11-21 | 2016-02-10 | 苏州科技学院 | Demonstration method and device for white laser generation principle |
| CN206471032U (en) * | 2016-11-25 | 2017-09-05 | 长春中国光学科学技术馆 | Laser communication apparatus for demonstrating |
-
2016
- 2016-11-25 CN CN201611047093.9A patent/CN106448394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457154A (en) * | 2003-06-12 | 2003-11-19 | 东南大学 | Light beam divergent angle variable laser communications spire device without optical fibre and controlling method thereof |
| CN102332953A (en) * | 2011-05-25 | 2012-01-25 | 北京理工大学 | Method and system for carrying out laser communication by utilizing coding imaging mode |
| CN203465882U (en) * | 2013-08-22 | 2014-03-05 | 滨州学院 | Laser communication demonstration instrument |
| CN203706505U (en) * | 2013-12-24 | 2014-07-09 | 桂林聚联科技有限公司 | Multifunctional optical communication teaching demonstration experimental device |
| CN105321412A (en) * | 2015-11-21 | 2016-02-10 | 苏州科技学院 | Demonstration method and device for white laser generation principle |
| CN206471032U (en) * | 2016-11-25 | 2017-09-05 | 长春中国光学科学技术馆 | Laser communication apparatus for demonstrating |
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Application publication date: 20170222 |
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