CN108933632A - A kind of quantum communications device between building - Google Patents
A kind of quantum communications device between building Download PDFInfo
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- CN108933632A CN108933632A CN201810784237.1A CN201810784237A CN108933632A CN 108933632 A CN108933632 A CN 108933632A CN 201810784237 A CN201810784237 A CN 201810784237A CN 108933632 A CN108933632 A CN 108933632A
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- reflecting mirror
- transmission cylinder
- heat sink
- quantum
- fixed
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/70—Photonic quantum communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
Abstract
The invention belongs to Technique on Quantum Communication field, quantum communications device between specifically a kind of building, including transmitter and receiver；Transmitter of the invention includes base, transmission cylinder, quantal data transmitter, beam expanding lens, reflecting mirror one, heat sink and light beam protective device；Transmission cylinder section is L shape, and transmission cylinder is fixed on base；Quantal data transmitter is located in transmission cylinder；Beam expanding lens is located inside transmission cylinder, and beam expanding lens is located above quantal data transmitter；Reflecting mirror one is located at L-shaped bend in transmission cylinder, and reflecting mirror one is 45 ° with the angle of quantal data transmitter；Heat sink is fixed on the periphery of transmission cylinder；Light beam protective device is located at transmission cylinder right part；Receiver of the invention further includes reflecting mirror two and telescope；Reflecting mirror two is fixed on the left end of receiver；The through-hole that telescope passes through on reflecting mirror two is fixed on the left end of receiver.
Description
Technical field
Quantum communications device the invention belongs to Technique on Quantum Communication field, between specifically a kind of building.
Background technique
With the development of society, secret communication is gradually by the concern of various aspects, traditional communication technology can not be
Instantly ensure communication security in overall situation, quantum communications progress into the sight of people.
Quantum communications refer to a kind of novel communication mode that information transmitting is carried out using entangled quantum effect.Quantum communications
It is the new interdisciplinary that recent two decades grow up, is quantum theory and the new research field that information theory combines.Quantum is logical
Letter relates generally to: quantum cryptography communication, quantum remotely pass state and quantum dense coding etc., this recent subject is gradually from theory
Experiment is moved towards, and is developed to functionization.According to quantum-mechanical uncertainty principle and the unclonable principle of quantum, any listener-in
Presence can all be found, to guarantee being perfectly safe for key, also ensure that being perfectly safe for encryption information.
Free space quantum communications are carried out between building, can be realized point-to-point transmission of the confidential information between communicating pair
And real-time Transmission, influence of the internet to communicating pair Secret Information Transmission can be avoided completely.Due to link range between building
In several hundred rice or several kilometers of magnitude, influence of the atmospheric turbulance to quantum communications is smaller, and quantum bit error rate is lower, and quantum bit passes
Defeated rate is higher.Quantum communications are carried out between building, the interference problem and temperature change for needing to solve external light source are to quantum communications
Influence problem, solve these problems and have great importance for establishing local building space quantum communication network system.
Summary of the invention
In order to make up for the deficiencies of the prior art, the quantum communications device between a kind of building proposed by the present invention, by sending out
Setting light beam protective device on machine is penetrated, the quantum wave emitted in transmitter is protected, so that quantum wave is from external light source
Interference, ensure that the accuracy of quantum communications；The present invention by being arranged reflecting mirror two on the receiver, by light beam protective device
The protection light of transmitting reflects to form other one layer of protection light beam, further improves the accurate of information during quantum communications
Property；The present invention by be arranged heat sink radiate to transmission cylinder, avoid quantum wave be affected by temperature in transmission process and
Distortion, and then improve the quality of the information of quantum wave transmission.
The technical solution adopted by the present invention to solve the technical problems is: the quantum between a kind of building of the present invention is logical
T unit, including transmitter and receiver；The transmitter includes base, transmission cylinder, quantal data transmitter, beam expanding lens, anti-
Penetrate mirror one, heat sink and light beam protective device；The transmission cylinder section is L shape, and transmission cylinder is fixed on base；The quantum
Data source is located in transmission cylinder, and quantal data transmitter is used to emit the quantum wave for carrying data-signal；The beam expanding lens
Inside transmission cylinder, beam expanding lens is located above quantal data transmitter, and beam expanding lens is for reinforcing the transmitting of quantal data transmitter
Quantum wave so that transmitter issue quantum wave it is more stable, improve the quantal data signal that subsequent receiver receives
Clarity；The reflecting mirror one is located at L-shaped bend in transmission cylinder, and reflecting mirror one and the angle of quantal data transmitter are
45 °, reflecting mirror one is used to reflect the quantum wave of quantal data transmitter transmitting；The heat sink quantity is several, and heat sink is circle
Ring structure, heat sink are fixed on the periphery of transmission cylinder, and heat sink avoids temperature to quantum for radiating to transmission cylinder
The influence of wave, the information distortion carried so as to avoid quantum wave；The light beam protective device is located at transmission cylinder right part, light beam
Protective device reduces quantum wave in transmission process by the shadow of external light source for protecting the quantum wave spread out of in transmission cylinder
It rings, and then improves the quality for the data-signal that the quantum wave that receiver finally receives carries.When work, quantal data transmitting
Device transmitting carries the quantum wave of data-signal, and quantum wave is reinforced by beam expanding lens, so that it is more stable in quantum wave transmission process,
The quality for the quantal data information that subsequent receiver receives is improved, quantum wave is reflected after beam expanding lens by reflecting mirror one
It is transmitted across transmission cylinder to receiver；Heat sink radiates to transmission cylinder during quantum wave transmits, and avoids quantum
The information that wave carries is distorted under the influence of heat, improves the quality for the information that receiver receives；Light beam protective device exists
Transmitting protection light beam, the influence for protecting light beam to protect quantum wave from external light source are improved and are connect during quantum wave transmits
The quality for the information that the quantum wave that receipts machine receives carries.
Temperature inductor and regulating mechanism in parallel are additionally provided on the reflecting mirror one；The temperature inductor is fixed on transmission
On drum outer wall, temperature inductor is located at one top of reflecting mirror, and temperature inductor is used for the variation of temperature sensor；The adjusting in parallel
Mechanism includes fixed plate and cylinder, and regulating mechanism in parallel is used to adjust the angle of reflecting mirror one；The fixed plate is fixed on transmission
L-shaped bend in cylinder；The number of cylinders is several, and cylinder one end is hinged by the back side of piston rod and reflecting mirror one, and cylinder is another
One end is hinged in fixed plate, and cylinder is used to adjust the angle of reflecting mirror one.When work, reflecting mirror one is acted upon by temperature changes
And there is small deformation, at this point, detecting the variation of the extraneous temperature difference by temperature inductor, then pass through the gas of regulating mechanism in parallel
Reflecting mirror one is adjusted in cylinder, so that reflecting mirror one works normally, avoids the variation of ambient temperature to quantum communications device
Influence, improve the practicability of quantum communications device.
The light beam protective device includes motor, gear, turntable, protection optical transmitting set and condenser；The motor is fixed
In the right part of transmission cylinder；The gear is fixed on the right part of transmission cylinder by the output shaft of motor；The turntable passes through axis
The right part for being fixed on transmission cylinder is held, turntable is located at the right side of motor, and turntable right side is circumferentially with several circles around disk axes
Connected in star, turntable left end are equipped with toroidal cavity, and toroidal cavity inner wall is equipped with ring gear, and gear is nibbled with the ring gear on turntable
It closes；The protection optical transmitting set quantity is identical as circular groove quantity, and protection optical transmitting set is fixed in circular groove, protects light
Transmitter is for emitting protection light beam；The condenser is fixed in circular groove, and condenser is located at the right side of protection optical transmitting set
Side, condenser are used to increase the intensity of the protection light of protection optical transmitting set transmitting.When work, motor driven gear rotation, turntable
On ring gear engaged with gear, gear band turn disk rotation, protection optical transmitting set transmitting protection light under the action of turntable
As protection optical transmitting set rotates together, so that protection light forms an annulus, what circular protection light emitted transmitter
Quantum wave protection improves the information of the received quantum wave carrying of receiver institute so that influence of the quantum wave from external light source
Quality；In the process, protection light carries out optically focused by condenser, improves the intensity of protection light, enhances protection light to quantum
The protective capability of wave, so that quantum wave transmission is more stable.
The heat sink is copper material, and heat sink is equipped with heat release hole one, and one quantity of heat release hole is several, and heat release hole one is around scattered
Hot plate axle center is circumferentially distributed, and heat release hole one is for accelerating heat sink to radiate.When work, the copper material thermal conductivity on heat sink is good,
So that good absorption effect of the heat sink to the heat in transmission cylinder, while the heat release hole one on heat sink can speed up on heat sink
Heat scatter and disappear, enable heat sink to continue efficiently to radiate, copper material and heat release hole one cooperate, effective to improve
The heat dissipation performance of heat sink, to effectively reduce the interference of quantum wave received heat.Avoid the information of quantum wave carrying
Distortion, and then improve the practicability of quantum communications
Gasket is equipped between the heat sink；The gasket is aluminium material, and gasket thickness mm is circumferentially with several dissipate on gasket
Hot hole two, two section of heat release hole are "eight" shape, and gasket is for accelerating heat sink heat dissipation.When work, the aluminium material gasket of mm
Good heat conductivity to enhance the conduction of the heat between heat sink, and then enhances the heat dissipation effect of heat sink, pads simultaneously
The heat release hole two of on piece setting accelerates lost, the use "eight" shape setting of heat release hole two of heat in transmission cylinder, "eight" shape
Upper end pressure it is big, lower end pressure is small, increases the heat dissipation performance of heat release hole two, aluminium material and "eight" shape heat release hole two
It cooperates, accelerates scattering and disappearing for heat in transmission cylinder, the information for effectively avoiding quantum wave carrying is influenced by temperature mistake
Very, the practicability of quantum communications is improved.
Annular groove is additionally provided on the heat sink, annular groove is for reducing stress suffered by heat sink.When work, dissipate
Hot plate temperature in radiation processes increases, to generate thermal stress, the setting of annular groove avoids heat sink in thermal stress
Effect is lower, and deformation occurs, improves the service life of heat sink.
The receiver is equipped with reflecting mirror two and telescope；The reflecting mirror two is fixed on the left end of receiver, reflection
Mirror two is disc-shaped structure, and disc-shaped structure is equipped with the toroidal cavity that a section is isosceles right triangle, disc
Through-hole is equipped among structure, reflecting mirror two is used for reflection protection light；The through-hole that the telescope passes through on reflecting mirror two is fixed on
The left end of receiver, the axle center of telescope and the axle center of reflecting mirror two are located in a straight line, and telescope is used for receiver/transmitter
The quantum wave of transmitting.When work, receiver receives quantum wave by telescope, then carries out subsequent processing to quantum wave；Process
In, the toroidal cavity of reflecting mirror two reflects incident protection light, isosceles right triangle structure make reflected light with
Incident light is parallel, so that incident reflection light emitting is formed other one layer of protection light by reflecting mirror two, so that quantum wave obtains
To better protection, to improve stability of the information of quantum wave carrying in transmission process.
Beneficial effects of the present invention are as follows:
1. the quantum communications device between a kind of building of the present invention, which solves the interference problems of external light source
Influence with temperature change to quantum communications, the device are of great significance for the development in quantum communications field.
2. the quantum communications device between a kind of building of the present invention, which passes through light beam protective device and reflecting mirror
Two, light beam protective device generates the protection light of annular, protects to quantum wave, is sent out light beam protective device by reflecting mirror two
The protection light beam penetrated is emitted, and is formd another layer of protection light beam outside protection light beam, is carried out to the quantum wave in communication
Further protection, to further enhance the accuracy of the information of quantum wave transmission.
3. the quantum communications device between a kind of building of the present invention passes through the aluminium material pad on heat sink and heat sink
Piece cooperates, and reduces influence of the temperature to quantum wave in transmission cylinder, avoids work of the information in temperature of quantum wave carrying
It is distorted with lower, it is ensured that the accuracy of information during quantum communications, it is ensured that quantum communications are gone on smoothly.
Detailed description of the invention
Fig. 1 is the main view of transmitter of the present invention；
Fig. 2 is the main view of inventive receiver；
Fig. 3 is A-A cross-sectional view in Fig. 1；
Fig. 4 is the partial enlarged view in Fig. 1 at B；
Fig. 5 is the partial enlarged view in Fig. 1 at C；
In figure: transmitter 1, receiver 2, base 3, transmission cylinder 4, quantal data transmitter 5, beam expanding lens 6, reflecting mirror 1,
Heat sink 8, light beam protective device 9, reflecting mirror 2 21, telescope 22, temperature inductor 71, regulating mechanism 72, fixed plate in parallel
73, cylinder 74, gasket 81, motor 91, gear 92, turntable 93, protection optical transmitting set 94, condenser 95.
Specific embodiment
The structure of the quantum communications device the building of an embodiment of the present invention is said as follows using Fig. 1-Fig. 5
It is bright.
As shown in Figure 1, the quantum communications device between a kind of building of the present invention, including transmitter 1 and receiver 2；
The transmitter 1 includes base 3, transmission cylinder 4, quantal data transmitter 5, beam expanding lens 6, reflecting mirror 1, heat sink 8 and light beam
Protective device 9；4 section of transmission cylinder is L shape, and transmission cylinder 4 is fixed on base 3；The quantal data transmitter 5 is located at
In transmission cylinder 4, quantal data transmitter 5 is used to emit the quantum wave for carrying data-signal；The beam expanding lens 6 is located at transmission cylinder 4
Inside, beam expanding lens 6 are located at 5 top of quantal data transmitter, and beam expanding lens 6 is used to reinforce the quantum of the transmitting of quantal data transmitter 5
Wave improves the clear of the quantal data signal that subsequent receiver 2 receives so that the quantum wave that transmitter 1 issues is more stable
Clear degree；The reflecting mirror 1 is located at L-shaped bend in transmission cylinder 4, and reflecting mirror 1 and the angle of quantal data transmitter 5 are
45 °, reflecting mirror 1 is used to reflect the quantum wave of the transmitting of quantal data transmitter 5；8 quantity of heat sink is several, heat sink 8
For cirque structure, heat sink 8 is fixed on the periphery of transmission cylinder 4, and heat sink 8 avoids temperature for radiating to transmission cylinder 4
The influence to quantum wave is spent, the information distortion carried so as to avoid quantum wave；The light beam protective device 9 is located at transmission cylinder 4
Right part, light beam protective device 9 for protecting the quantum wave spread out of in transmission cylinder 4, reduce quantum wave in transmission process by
To the influence of external light source, and then improve the quality for the data-signal that the quantum wave that receiver 2 finally receives carries.Work
When, the transmitting of quantal data transmitter 5 carries the quantum wave of data-signal, and quantum wave is reinforced by beam expanding lens 6, so that quantum wave passes
It is more stable during defeated, the quality for the quantal data information that subsequent receiver 2 receives is improved, quantum wave passes through beam expanding lens
It is transmitted across transmission cylinder to receiver 2 after 6 by the reflection of reflecting mirror 1；Heat sink 8 is during quantum wave transmits to transmission
Cylinder 4 radiates, and the information for avoiding quantum wave carrying is distorted under the influence of heat, improves the letter that receiver 2 receives
The quality of breath；Light beam protective device 9 quantum wave transmit during transmitting protection light beam, protect light beam protect quantum wave from
The influence of external light source improves the quality for the information that the quantum wave that receiver 2 receives carries.
As best shown in figs. 1 and 4, temperature inductor 71 and regulating mechanism 72 in parallel are additionally provided on the reflecting mirror 1；It is described
Temperature inductor 71 is fixed on 4 outer wall of transmission cylinder, and temperature inductor 71 is located at one 7 top of reflecting mirror, and temperature inductor 71 is used
In the variation of temperature sensor；The parallel connection regulating mechanism 72 includes fixed plate 73 and cylinder 74, and regulating mechanism 72 in parallel is for adjusting
Save the angle of reflecting mirror 1；The fixed plate 73 is fixed on L-shaped bend in transmission cylinder 4；74 quantity of cylinder is several, gas
74 one end of cylinder is hinged by the back side of piston rod and reflecting mirror 1, and 74 other end of cylinder is hinged in fixed plate 73, and cylinder 74 is used
In the angle for adjusting reflecting mirror 1.When work, reflecting mirror 1 is acted upon by temperature changes and small deformation occurs, at this point,
Detect the variation of the extraneous temperature difference by temperature inductor 71, then by the cylinder 74 of regulating mechanism 72 in parallel to reflecting mirror 1 into
Row is adjusted, so that reflecting mirror 1 works normally, is avoided influence of the variation of ambient temperature to quantum communications device, is improved
The practicability of quantum communications device.
As shown in Fig. 1 and Fig. 5, the light beam protective device 9 includes motor 91, gear 92, turntable 93, protection optical transmitting set
94 with condenser 95；The motor 91 is fixed on the right part of transmission cylinder 4；The gear 92 is fixed by the output shaft of motor 91
In the right part of transmission cylinder 4；The turntable 93 is fixed on the right part of transmission cylinder 4 by bearing, and turntable 93 is located at motor 91
Right side, 93 right side of turntable are circumferentially with several circular grooves around 93 axle center of turntable, and 93 left end of turntable is equipped with toroidal cavity, annular
Cavity inner wall is equipped with ring gear, and gear 92 is engaged with the ring gear on turntable 93；94 quantity of protection optical transmitting set and circle
Connected in star quantity is identical, and protection optical transmitting set 94 is fixed in circular groove, and protection optical transmitting set 94 is for emitting protection light beam；
The condenser 95 is fixed in circular groove, and condenser 95 is located at the right side of protection optical transmitting set 94, and condenser 95 is for increasing
The intensity for the protection light for adding protection optical transmitting set 94 to emit.When work, motor 91 is rotated with moving gear 92, the internal tooth on turntable 93
Circle is engaged with gear 92, and gear 92 drives turntable 93 to rotate, effect of the protection light that protection optical transmitting set 94 emits in turntable 93
Under rotate together with protection optical transmitting set 94 so that protection light forms an annulus, circular protection light sends out transmitter 1
The quantum wave protection penetrated improves the received quantum wave carrying of the institute of receiver 2 so that influence of the quantum wave from external light source
The quality of information；In the process, protection light carries out optically focused by condenser 95, improves the intensity of protection light, enhances protection light
To the protective capability of quantum wave, so that quantum wave transmission is more stable.
As shown in Figure 1, the heat sink 8 is copper material, heat sink 8 is equipped with heat release hole one, and one quantity of heat release hole is several,
Heat release hole one is circumferentially distributed around 8 axle center of heat sink, and heat release hole one is for accelerating heat sink 8 to radiate.When work, on heat sink 8
Copper material thermal conductivity is good, so that good absorption effect of the heat sink 8 to the heat in transmission cylinder 4, while the heat release hole on heat sink 8
One can speed up scattering and disappearing for the heat on heat sink 8, enable heat sink 8 to continue efficiently to radiate, copper material and heat release hole
One cooperates, and the heat dissipation performance of heat sink 8 is effectively raised, to effectively reduce the interference of quantum wave received heat.
The information distortion of quantum wave carrying is avoided, and then improves the practicability of quantum communications
As shown in Figures 1 and 3, gasket 81 is equipped between the heat sink 8；The gasket 81 is aluminium material, and gasket 81 is thick
1mm is circumferentially with several heat release holes two on gasket 81, and two section of heat release hole is "eight" shape, and gasket 81 is for accelerating heat sink 8
Heat dissipation.When work, the good heat conductivity of the aluminium material gasket 81 of 1mm, so that the conduction of the heat between heat sink 8 is enhanced,
And then the heat release hole two that enhances the heat dissipation effect of heat sink 8, while being arranged on gasket 81 accelerates dissipating for heat in transmission cylinder 4
It loses, heat release hole two is arranged using "eight" shape, and the upper end pressure of "eight" shape is big, and lower end pressure is small, increases heat release hole
Two heat dissipation performance, aluminium material and "eight" shape heat release hole two cooperate, and accelerate scattering and disappearing for heat in transmission cylinder 4, effectively
Avoid quantum wave carrying information be influenced by temperature distortion, improve the practicability of quantum communications.
As shown in Figure 1, being additionally provided with annular groove on the heat sink 8, annular groove is answered suffered by heat sink 8 for reducing
Power.When work, the temperature in radiation processes of heat sink 8 increases, to generate thermal stress, the setting of annular groove avoids heat dissipation
Deformation occurs under the action of thermal stress for plate 8, improves the service life of heat sink 8.
As shown in Fig. 2, the receiver 2 is equipped with reflecting mirror 2 21 and telescope 22；The reflecting mirror two, which is fixed on, to be connect
The left end of receipts machine 2, reflecting mirror 2 21 are disc-shaped structure, and it is isosceles right triangle that disc-shaped structure, which is equipped with a section,
Toroidal cavity, disc-shaped structure centre are equipped with through-hole, and reflecting mirror 2 21 is used for reflection protection light；The telescope 22 passes through anti-
The through-hole penetrated on mirror 2 21 is fixed on the left end of receiver 2, and the axle center of telescope 22 and the axle center of reflecting mirror 2 21 are located at one
On straight line, telescope 22 is used for the quantum wave that receiver/transmitter 1 emits.When work, receiver 2 receives quantum by telescope 22
Wave, then subsequent processing is carried out to quantum wave；In the process, the toroidal cavity of reflecting mirror 2 21 carries out incident protection light anti-
It penetrates, isosceles right triangle structure makes reflected light parallel with incident light, so that reflecting mirror 2 21 is by incident reflected light
Transmitting forms other one layer of protection light, so that quantum wave is preferably protected, so that the information for improving quantum wave carrying exists
Stability in transmission process.
Specific workflow:
When work, the transmitting of quantal data transmitter 5 carries the quantum wave of data-signal, and quantum wave is reinforced by beam expanding lens 6,
So that it is more stable in quantum wave transmission process, improve the quality for the quantal data signal that subsequent receiver 2 receives, quantum
Wave is transmitted across transmission cylinder 4 to receiver 2 after beam expanding lens 6, through the reflection of reflecting mirror 1, and receiver 2 passes through telescope 22
Quantum wave is received；In the process, reflecting mirror 1 is influenced by temperature inversion and small deformation occurs, at this point, passing through temperature
Degree inductor 71 detects the variation of the extraneous temperature difference, then reflecting mirror 1 is adjusted by the cylinder 74 of regulating mechanism 72 in parallel,
So that reflecting mirror 1 works normally, influence of the variation of ambient temperature to quantum communications device is avoided, quantum communications are improved
The practicability of device；Heat sink 8 radiates to transmission cylinder 4 during quantum wave transmits, and the copper material on heat sink 8 is led
It is hot good, so that good absorption effect of the heat sink 8 to the heat in transmission cylinder 4, while the heat release hole one on heat sink 8 can add
Scattering and disappearing for heat on fast heat sink 8, enables heat sink 8 to continue efficiently to radiate, gasket 81 conducts between heat sink 8
Heat, the good heat conductivity of the aluminium material gasket 81 of 1mm, to enhance the conduction of the heat between heat sink 8, and then enhances
The heat dissipation effect of heat sink 8, while the heat release hole two being arranged on gasket 81 accelerates lost, the heat release hole of heat in transmission cylinder 4
Two are arranged using "eight" shape, and the upper end pressure of "eight" shape is big, and lower end pressure is small, increases the thermal diffusivity of heat release hole two
Can, aluminium material and "eight" shape heat release hole two cooperate, and accelerate scattering and disappearing for heat in transmission cylinder 4, effectively the amount of avoiding
The information that wavelet carries is distorted under the influence of the temperature, improves the quality for the information that receiver 2 receives；Light beam protective device
9 work, motor 91 are rotated with moving gear 92, and the ring gear on turntable 93 is engaged with gear 92, and gear 92 drives turntable 93 to rotate,
Protect the protection light of the transmitting of optical transmitting set 94 under the action of turntable 93 as protection optical transmitting set 94 rotates together, so that protection
Light forms an annulus, and the quantum wave that circular protection light emits transmitter 1 is protected, so that quantum wave is from external light source
Influence, improve receiver 2 the quality of information that carries of received quantum wave；In the process, protection light passes through condenser 95
Optically focused is carried out, the intensity of protection light is improved, enhances protection light to the protective capability of quantum wave, so that quantum wave transmission is more
Stablize；Meanwhile the toroidal cavity of reflecting mirror 2 21 reflects incident protection light, isosceles right triangle structure makes
Reflected light is parallel with incident light, so that incident reflection light emitting is formed other one layer of protection light by reflecting mirror 2 21, makes
It obtains quantum wave preferably to be protected, so that the information that the received quantum wave of receiver 2 carries is more stable.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, not
Various changes are able to carry out in the range of disengaging present subject matter.
(A) in the above-described embodiment, it being rotated by motor driven gear, gear is engaged with the ring gear of turntable, thus
Realize the rotation of turntable, but not limited to this, outer gear ring can also be set on turntable, so that gear is engaged with turntable outer gear ring,
To realize that motor driven gear is rotated together with turntable.
Industrial applicibility
According to the present invention, the quantum communications device between building can smoothly carry out the quantum communications between building, thus this
Building area of a room sub-communication device is useful in Technique on Quantum Communication field.
Claims (7)
1. the quantum communications device between a kind of building, including transmitter (1) and receiver (2), it is characterised in that: the transmitter
(1) include base (3), transmission cylinder (4), quantal data transmitter (5), beam expanding lens (6), reflecting mirror one (7), heat sink (8) and
Light beam protective device (9)；Transmission cylinder (4) section is L shape, and transmission cylinder (4) is fixed on base (3)；The quantum number
It is located in transmission cylinder (4) according to transmitter (5), quantal data transmitter (5) is used to emit the quantum wave for carrying data-signal；It is described
Beam expanding lens (6) is located at transmission cylinder (4) inside, and beam expanding lens (6) is located above quantal data transmitter (5), and beam expanding lens (6) is for adding
The quantum wave of strong quantal data transmitter (5) transmitting；The reflecting mirror one (7) is located at transmission cylinder (4) interior L-shaped bend, reflection
Mirror one (7) and the angle of quantal data transmitter (5) are 45 °, and reflecting mirror one (7) is for reflecting quantal data transmitter (5) hair
The quantum wave penetrated；Heat sink (8) quantity is several, and heat sink (8) is cirque structure, and heat sink (8) is fixed on transmission cylinder
(4) periphery, heat sink (8) is for radiating to transmission cylinder (4)；The light beam protective device (9) is located at transmission cylinder (4) right side
End, light beam protective device (9) are used to protect the quantum wave spread out of in transmission cylinder (4).
2. the quantum communications device between a kind of building according to claim 1, it is characterised in that: the reflecting mirror one (7)
On be additionally provided with temperature inductor (71) and regulating mechanism in parallel (72)；The temperature inductor (71) is fixed on transmission cylinder (4) outside
On wall, temperature inductor (71) is located above reflecting mirror one (7), and temperature inductor (71) is used for the variation of temperature sensor；It is described
Regulating mechanism (72) in parallel includes fixed plate (73) and cylinder (74), and regulating mechanism (72) in parallel is for adjusting reflecting mirror one (7)
Angle；The fixed plate (73) is fixed on transmission cylinder (4) interior L-shaped bend；Cylinder (74) quantity is several, cylinder (74)
One end is hinged by the back side of piston rod and reflecting mirror one (7), and cylinder (74) other end is hinged on fixed plate (73), cylinder
(74) for adjusting the angle of reflecting mirror one (7).
3. the quantum communications device between a kind of building according to claim 1, it is characterised in that: the light beam protective device
(9) include motor (91), gear (92), turntable (93), protect optical transmitting set (94) and condenser (95)；The motor (91) is solid
It is scheduled on the right part of transmission cylinder (4)；The gear (92) is fixed on the right end of transmission cylinder (4) by the output shaft of motor (91)
Portion；The turntable (93) is fixed on the right part of transmission cylinder (4) by bearing, and turntable (93) is located at the right side of motor (91), turns
Disk (93) right side is circumferentially with several circular grooves around turntable (93) axle center, and turntable (93) left end is equipped with toroidal cavity, annular
Cavity inner wall is equipped with ring gear, and gear (92) is engaged with the ring gear on turntable (93)；Protection optical transmitting set (94) number
Amount is identical as circular groove quantity, and protection optical transmitting set (94) is fixed in circular groove, and protection optical transmitting set (94) is for sending out
Penetrate protection light beam；The condenser (95) is fixed in circular groove, and condenser (95) is located at the right side of protection optical transmitting set (94)
Side, condenser (95) are used to increase the intensity of the protection light of protection optical transmitting set (94) transmitting.
4. the quantum communications device between a kind of building according to claim 1, it is characterised in that: the heat sink (8) is
Copper material, heat sink (8) are equipped with heat release hole one, and heat release hole one is for accelerating heat sink (8) to radiate.
5. the quantum communications device between a kind of building according to claim 4, it is characterised in that: the heat sink (8) it
Between be equipped with gasket (81)；The gasket (81) is aluminium material, and gasket (81) thickness 1mm, gasket is circumferentially with several heat dissipations on (81)
Hole two, two section of heat release hole are "eight" shape, and gasket (81) is for accelerating heat sink (8) heat dissipation.
6. the quantum communications device between a kind of building according to claim 4, it is characterised in that: on the heat sink (8)
It is additionally provided with annular groove, annular groove is for reducing stress suffered by heat sink (8).
7. the quantum communications device between a kind of building according to claim 1, it is characterised in that: on the receiver (2)
Equipped with reflecting mirror two (21) and telescope (22)；The reflecting mirror two is fixed on the left end of receiver (2), and reflecting mirror two (21) is
Disc-shaped structure, disc-shaped structure are equipped with a section for the toroidal cavity of isosceles right triangle, in disc-shaped structure
Between be equipped with through-hole, reflecting mirror two (21) be used for reflection protection light；The telescope (22) passes through the through-hole on reflecting mirror two (21)
It is fixed on the left end of receiver (2), the axle center of telescope (22) and the axle center of reflecting mirror two (21) are located in a straight line, look in the distance
Mirror (22) is used for the quantum wave of receiver/transmitter (1) transmitting.
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| CN201810784237.1A CN108933632A (en) | 2018-07-17 | 2018-07-17 | A kind of quantum communications device between building |
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| CN201810784237.1A CN108933632A (en) | 2018-07-17 | 2018-07-17 | A kind of quantum communications device between building |
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| CN201810784237.1A Withdrawn CN108933632A (en) | 2018-07-17 | 2018-07-17 | A kind of quantum communications device between building |
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