CN103297138A - Personal communication system based on optical communication in aircraft - Google Patents
Personal communication system based on optical communication in aircraft Download PDFInfo
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- CN103297138A CN103297138A CN2012100510448A CN201210051044A CN103297138A CN 103297138 A CN103297138 A CN 103297138A CN 2012100510448 A CN2012100510448 A CN 2012100510448A CN 201210051044 A CN201210051044 A CN 201210051044A CN 103297138 A CN103297138 A CN 103297138A
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Abstract
The invention relates to a personal communication system based on optical communication in an aircraft. The personal communication system comprises a communication terminal, airborne communication equipment, a communication satellite and a ground base station. The airborne communication equipment is arranged on the aircraft and used for being communicated with the communication terminal and the communication satellite. Signal transmission is carried out between the airborne communication equipment and the communication terminal through optical signals. The ground base station is communicated with the communication satellite and a ground communication network. The signal transmission is carried out between the airborne communication equipment and the communication terminal through the optical signals, so electromagnetic wave frequency of the communication equipment, an airplane and other aircrafts and electromagnetic wave frequency linked with a control tower are not close or superimposed, and the optical signals cannot be taken as operating signals sent by the control tower. Therefore, misoperation cannot be caused, random communication between midair and the ground is achieved, and the aircraft is safer.
Description
Technical field
The present invention relates to a kind of communication system, relate in particular to a kind of based on PCS Personal Communications System in the aircraft of optical communication.
Background technology
According to statistics, more than 20 aircraft accident because using mobile phone to cause all takes place in every year in the world wide in recent years, and therefore many airlines stipulate in the world, ban use of mobile phone during aircraft flight.Aircraft is to fly along the course of regulation at height in the air, and whole flight course all will be subjected to ground aviation administrative staff's commander.Aerial at height, on one side the pilot drive an airplane, Yi Bian get in touch with the communication navigation set on the aircraft and ground control tower.Navigator on the aircraft utilizes radio wave to come direction finding navigation, after it receives the electromagnetic wave that the ground control tower constantly launches, and the accurate position that just can measure aircraft.If find that aircraft has departed from the course, automatic pilot is automatic " correction " mistake immediately, makes the aircraft normal flight.
When mobile phone was worked, it can give off electromagnetic wave, and the wave frequency that the wave frequency that mobile phone uses and aircraft and control tower contact has one section to be close even stack, and may be taken as is the operation signal that control tower is sent, and causes misoperation.Such as when aircraft descends, control tower requires aircraft to spiral or rises, if its below also has airplane, but this moment is if there is the mobile phone electromagnetic wave signal to come in, influence or be superimposed upon on the airplane operation signal, the operation signal that the control room is received becomes decline, possible like this major accident will take place.Therefore, how to use communication equipments such as mobile phone and ground to carry out free communication aboard, become the problem that needs to be resolved hurrily now.
Summary of the invention
Technical problem to be solved by this invention is, at above-mentioned the deficiencies in the prior art, proposes a kind of safer based on PCS Personal Communications System in the aircraft of optical communication.
The technical solution adopted for the present invention to solve the technical problems is, propose a kind of based on PCS Personal Communications System in the aircraft of optical communication, it comprises communication terminal, airborne communication control, communication satellite and ground base station, described airborne communication control is arranged on the aircraft, and be used for communicating with communication terminal and communication satellite, wherein, carry out the signal transmission by light signal between described airborne communication control and the described communication terminal; Described ground base station and described communication satellite and ground communication network communicate.
Further, described communication terminal is portable mobile device or is arranged on the interior landline telephone of aircraft.
Further, described portable mobile device is mobile phone, notebook computer, E-book reader or beep-pager.
Further, described aircraft comprises aircraft, helicopter, aerodone or dirigible.
Further, described communication terminal comprises signal processing unit, terminal light signal transmitter unit and terminal light signal receiving element, described terminal light signal transmitter unit is used for exporting after described signal processing unit processes the signal of telecommunication converts light signal to be launched, and described terminal light signal receiving element is used for converting the light signal that the airborne communication control biography is come to the signal of telecommunication and transfers to described signal processing unit.
Further, described terminal light signal transmitter unit comprises modulator, driver and luminescent device, described modulator receives the coded data of described signal processing unit and is converted into the level modulation signal, and described driver drives the light signal that the luminescent device emission contains information under the control of level modulation signal.
Further, described luminescent device is light-emitting diode or infrared emission tube.
Further, described terminal light signal receiving element comprises photodetector and signal amplifier, and the light signal that described photodetector is used for described airborne communication control is launched converts the signal of telecommunication to; Described signal amplification module is used for the signal of telecommunication of described photodetector output is amplified, and is sent to described signal processing unit.
Further, described airborne communication control comprises airborne light signal receiving element, airborne light signal transmitter unit, switch unit, router unit and antenna, and described airborne light signal receiving element is used for converting the light signal that the communication terminal biography is come to the signal of telecommunication and transfers to described switch unit; Described airborne light signal transmitter unit is used for converting the signal of telecommunication that switch unit is exported to light signal and launches; Described switch unit is used for providing data to transmit service; Described router unit is connected with described switch and antenna, and is used for providing route service; Described antenna is used for communicating with satellite.
Further, described antenna is super material antenna, described super material antenna comprises antenna body and is positioned at the super material panel of described antenna body one side, described super material panel is provided with some layers, and each layer is by the substrate of sheet and be arranged on described suprabasil a plurality of artificial metal's micro-structurals and form.
In sum, the present invention is based on the interior PCS Personal Communications System of aircraft of optical communication by carrying out the signal transmission by light signal between described airborne communication control and the described communication terminal, then the wave frequency that contacts of aircraft such as the wave frequency of communication equipment and aircraft and control tower can close or stack, it is the operation signal that control tower is sent that light signal can not be taken as, thereby can not cause misoperation, thereby realize any communication between aerial and the ground, aircraft is safer.
Description of drawings
Fig. 1 is the theory diagram that the present invention is based on the interior a kind of embodiment of PCS Personal Communications System of aircraft of optical communication.
Fig. 2 is the theory diagram of communication terminal of the present invention shown in Figure 1.
Fig. 3 is the theory diagram of airborne communication control of the present invention shown in Figure 1.
Fig. 4 is the structural representation of antenna of the present invention shown in Figure 1.
Fig. 5 is the structural representation of the super material panel of antenna of the present invention shown in Figure 4.
Embodiment
The present invention will be further described below in conjunction with drawings and the specific embodiments:
See also Fig. 1, the interior PCS Personal Communications System of aircraft that the present invention is based on optical communication comprises communication terminal 1, airborne communication control 2, communication satellite 3 and ground base station 4, wherein, described aircraft can be carried of the people's that can aloft fly such as aircraft, helicopter, aerodone or dirigible equipment; Described communication terminal 1 can be portable mobile device or be arranged on the landline telephone that flies in the aircraft that described portable mobile device can be mobile phone, notebook computer, E-book reader or beep-pager etc.In the present embodiment, described aircraft is aircraft, and described communication terminal 1 is mobile phone.
See also Fig. 2, described communication terminal 1 comprises signal processing unit 11, terminal light signal transmitter unit 12 and terminal light signal receiving element 13.Described signal processing unit 11 is for the treatment of signals such as voice and data.Described terminal light signal transmitter unit 12 is used for exporting after described signal processing unit 11 is handled the signal of telecommunication converts light signal to and launches, it comprises modulator 121, driver 122 and luminescent device 123, described modulator 121 receives the coded data of described signal processing unit 11 and is converted into the level modulation signal, described driver 122 drives the light signal that luminescent device 123 emissions contain information under the control of level modulation signal, be that described luminescent device 123 continuous sudden strain of a muscles are gone out, form and represent 0 and 1 digital signal.Because the continuous sudden strain of a muscle that described luminescent device 123 carries out high frequency is gone out, human eye is difficult to feel to obtain, and therefore can not cause adverse effect to the passenger in the cabin, in addition, can also provide illumination.
Described terminal light signal receiving element 13 is used for converting the light signal that airborne communication control 2 biographies are come to the signal of telecommunication and transfers to described signal processing unit 11, it comprises photodetector 131 and signal amplifier 132, and the light signal that described photodetector 131 is used for described airborne communication control 2 is launched converts the signal of telecommunication to.Described photodetector 131 is arranged on the end face of mobile phone, thereby is convenient to receiving optical signals.Described signal amplification module is used for the signal of telecommunication of described photodetector 131 outputs is amplified, and is sent to described signal processing unit 11.
See also Fig. 3, described airborne communication control 2 is arranged on the aircraft, and be used for communicating with communication terminal 1 and communication satellite 3, it comprises airborne light signal receiving element 21, airborne light signal transmitter unit 22, switch unit 23, router unit 24 and antenna 25.Described airborne light signal receiving element 21 is used for converting the light signal that communication terminal 1 biography is come to the signal of telecommunication and transfers to described switch unit 23, it comprises photodetector 211 and signal amplifier 212, and the light signal that described photodetector 211 is used for described communication terminal 1 is launched converts the signal of telecommunication to; Described signal amplifier 212 is used for the signal of telecommunication of described photodetector 211 outputs is amplified, and is sent to described switch unit 23.
Described airborne light signal transmitter unit 22 is used for converting the signal of telecommunication that switch unit 23 is exported to light signal and launches, it comprises modulator 221, driver 222 and luminescent device 223, described modulator 221 receives the datagram number of described switch unit 23 and is converted into the level modulation signal, and described driver 222 drives luminescent device 223 and launches the light signal that contains information under the control of level modulation signal.Described luminescent device (123,223) can be light-emitting diode or infrared emission tube, in the present embodiment, described luminescent device (123,223) be light-emitting diode, described light-emitting diode has the brightness height, operating voltage is low, power consumption is little, it is integrated to be easy to, drive simple, the life-span is long, shock-resistant, stable performance and can carry out advantage such as High Speed Modulation.Described switch unit 23 is used for providing data to transmit service.Described router unit 24 is connected with described switch and antenna 25, and is used for providing route service.
See also Fig. 4 and Fig. 5, described antenna 25 is used for communicating with communication satellite 3, it comprises antenna body 251 and is positioned at the super material panel 252 of described antenna body 251 front ends one side, described antenna body 251 is provided with oscillator 2511, and described super material panel 252 is positioned at a side of described oscillator 2511.Described super material panel 252 is provided with some layers, and each layer is made up of the substrate 253 of sheet and a plurality of artificial metal's micro-structurals 254 that are arranged in the described substrate 253.Described substrate 253 can be ceramic material, epoxy resin or polytetrafluoroethylene, macromolecular material, ferroelectric material, ferrite material, ferromagnetic material etc.Described artificial metal's micro-structural 254 is made by materials such as copper or silver, its by etching, plating, brill quarter, photoetching, electronics is carved or ion quarter etc. technology be attached in the described substrate 253, by super material technology as can be known, under the situation that base material is selected, by adjusting pattern, size and the spatial distribution on base material thereof of artificial metal's micro-structural 254, can adjust everywhere effective dielectric constant and equivalent permeability on the super material, and then change super material equivalent refractive index everywhere.When artificial metal's micro-structural 254 adopted identical geometry, the size of somewhere artificial metal's micro-structural 254 was more big, and then effective dielectric constant and the equivalent permeability that should locate is more big, and refractive index is also more big.
When the electromagnetic wave that is sent by feed converges afterwards parallel spreading out of through super material panel 252, the pass of deflection angle θ and refractive index is: Sin θ=q Δ n, wherein q is the number of artificial metal's micro-structural of arranging vertically, Δ n represents the refractive index variable quantity of adjacent cells, and 0＜q Δ n＜1, as shown from the above formula, when the refractive index variable quantity of adjacent cells size is identical on the super material cell, identical for the electromagnetic deflection angle that is transferred to this position, refractive index variable quantity is more big, and deflection angle is more big.There is following relation in the refractive index of material with its dielectric constant and magnetic permeability:
Wherein k is proportionality coefficient, the k value is positive and negative 1, ε is the dielectric constant of material, u is the magnetic permeability of material, by to the DIELECTRIC CONSTANT of every bit and the accurate design of magnetic permeability μ in super material panel 252 spaces, can realize the electromagnetic wave that sent by emission source after super material refraction parallel ejaculation converge characteristic.
In the present embodiment, the pattern of the artificial metal's micro-structural 254 that adopts is I-shaped, the size of I-shaped artificial metal's micro-structural 254 therefrom diminishes around the mind-set gradually in the substrate 253, in substrate 253 centers, the size maximum of I-shaped artificial metal's micro-structural 254, and measure-alike in I-shaped artificial metal's micro-structural 254 at distance center same radius place, therefore the effective dielectric constant of substrate 253 and equivalent permeability by the centre to around diminish gradually, middle effective dielectric constant and equivalent permeability maximum, thereby the refractive index of substrate 253 from the centre to around diminish the refractive index maximum of mid portion gradually.By adding described super material panel 252 in antenna body 251 front ends one side, thereby most of electromagnetic wave that radiating doublet produces is converged via super material panel 252 refractions and to same direction, thereby significantly reduced the width of radiated wave lobe, the gain of antenna 25 is significantly improved, strengthened the signal strength signal intensity of antenna 2525 greatly, the transmission reliability height, the signal transmitting range is long, thereby can adapt to various rugged environments.
Operation principle of the present invention is: when the passenger desires in aircraft to converse by mobile phone, described mobile phone is arranged to " aerial conversation " pattern, the i.e. pattern that communicates by light signal, then described terminal light signal transmitter unit 12 and 13 work of terminal light signal receiving element.The signal processing module 11 of described mobile phone converted voice signal to digital electric signal when the passenger conversed, and sent described terminal light signal transmitter unit 12 to.Described terminal light signal transmitter unit 12 converts described digital electric signal to light signal and launches.After the airborne light signal receiving element 21 of described airborne communication control 2 receives described light signal, convert described light signal to the signal of telecommunication, according to order through described switch unit 23 and router unit 24, launch finally by described antenna 25, the frequency of described antenna 25 emissions is in the frequency range of L-band.After described communication satellite 3 receives the signal of described antenna 25 emissions, described signal is transmitted to ground base station 4, described ground base station 4 is passed to the ground communication network with described signal, by described ground communication network, thereby realize that aircraft interior communication terminal 1 and the communication terminal 5 on ground communicate.Wherein, the frequency of communicating by letter between described communication satellite 3 and the described ground base station 4 is at K
uThe frequency range of wave band.Not only can realize conversation by described communication terminal 1, also can send e-mails, shopping online and suscribe to hotel etc. on the net that its principle is similar to above-mentioned mobile phone communications, does not repeat them here.
In sum, the present invention is based on the interior PCS Personal Communications System of aircraft of optical communication by carrying out the signal transmission by light signal between described airborne communication control 2 and the described communication terminal 1, then the wave frequency that contacts of the wave frequency of airborne communication control 2 and aircraft and control tower can close or stack, it is the operation signal that control tower is sent that light signal can not be taken as, thereby can not cause misoperation, thereby realize any communication between aerial and the ground, aircraft is safer.
By reference to the accompanying drawings preferred embodiment of the present invention is described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within protection scope of the present invention.
Claims (10)
1. one kind based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: comprise communication terminal, airborne communication control, communication satellite and ground base station, described airborne communication control is arranged on the aircraft, and be used for communicating with communication terminal and communication satellite, wherein, carry out the signal transmission by light signal between described airborne communication control and the described communication terminal; Described ground base station and described communication satellite and ground communication network communicate.
2. according to claim 1 based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described communication terminal is portable mobile device or is arranged on the interior landline telephone of aircraft.
3. according to claim 2 based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described portable mobile device is mobile phone, notebook computer, E-book reader or beep-pager.
4. according to claim 1 or 2 or 3 described based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described aircraft comprises aircraft, helicopter, aerodone or dirigible.
5. according to claim 1 or 2 or 3 described based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described communication terminal comprises signal processing unit, terminal light signal transmitter unit and terminal light signal receiving element, described terminal light signal transmitter unit is used for exporting after described signal processing unit processes the signal of telecommunication converts light signal to be launched, and described terminal light signal receiving element is used for converting the light signal that the airborne communication control biography is come to the signal of telecommunication and transfers to described signal processing unit.
6. according to claim 5 based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described terminal light signal transmitter unit comprises modulator, driver and luminescent device, described modulator receives the coded data of described signal processing unit and is converted into the level modulation signal, and described driver drives the light signal that the luminescent device emission contains information under the control of level modulation signal.
7. according to claim 6 based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described luminescent device is light-emitting diode or infrared emission tube.
8. according to claim 5 based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described terminal light signal receiving element comprises photodetector and signal amplifier, and the light signal that described photodetector is used for described airborne communication control is launched converts the signal of telecommunication to; Described signal amplification module is used for the signal of telecommunication of described photodetector output is amplified, and is sent to described signal processing unit.
9. according to claim 1 or 2 or 3 described based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described airborne communication control comprises airborne light signal receiving element, airborne light signal transmitter unit, switch unit, router unit and antenna, and described airborne light signal receiving element is used for converting the light signal that the communication terminal biography is come to the signal of telecommunication and transfers to described switch unit; Described airborne light signal transmitter unit is used for converting the signal of telecommunication that switch unit is exported to light signal and launches; Described switch unit is used for providing data to transmit service; Described router unit is connected with described switch and antenna, and is used for providing route service; Described antenna is used for communicating with satellite.
10. according to claim 9 based on PCS Personal Communications System in the aircraft of optical communication, it is characterized in that: described antenna is super material antenna, described super material antenna comprises antenna body and is positioned at the super material panel of described antenna body one side, described super material panel is provided with some layers, and each layer is by the substrate of sheet and be arranged on described suprabasil a plurality of artificial metal's micro-structurals and form.
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| CN201210051044.8A CN103297138B (en) | 2012-02-29 | 2012-02-29 | PCS Personal Communications System in aircraft based on optic communication |
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| CN201210051044.8A CN103297138B (en) | 2012-02-29 | 2012-02-29 | PCS Personal Communications System in aircraft based on optic communication |
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| CN103297138B (en) | 2017-12-01 |
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Effective date of registration: 20150910 Address after: 518000 Guangdong city of Shenzhen province Futian District Shennan Road and CaiTian Road intersection East Xintiandi Plaza C block 2007-27 Applicant after: Shenzhen Guang Qi intelligent photonic Technology Co., Ltd. Address before: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Applicant before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |
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