CN105259912A - Intelligent traffic based unmanned aerial vehicle communication system - Google Patents
Intelligent traffic based unmanned aerial vehicle communication system Download PDFInfo
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- CN105259912A CN105259912A CN201510650792.1A CN201510650792A CN105259912A CN 105259912 A CN105259912 A CN 105259912A CN 201510650792 A CN201510650792 A CN 201510650792A CN 105259912 A CN105259912 A CN 105259912A
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Abstract
The invention discloses an intelligent traffic based unmanned aerial vehicle communication system, which relates to an intelligent traffic system, and aims to solve the technical problems of small information acquisition scope, poor actual use effects and potential safety hazards existing in cloud intelligent traffic service and wireless technology respectively, lack of communication among unmanned aerial vehicle clusters and the like of an existing unmanned aerial vehicle anti-collision communication system. The intelligent traffic based unmanned aerial vehicle communication system structurally comprises sensors, an unmanned aerial vehicle data bus, a remote information communication unit and a visible light short-range signals transceiver, and is characterized in that the sensors detect unmanned aerial vehicle state signals and outputs feedback signals; the unmanned aerial vehicle data bus receives the feedback signals of the sensors and outputs unmanned aerial vehicle state clock signals; a remote information control unit of the remote information communication is further connected with the unmanned aerial vehicle data bus; and the visible light short-range signal transceiver performs information interaction with the remote information control unit. The intelligent traffic based unmanned aerial vehicle communication system is used for preventing collision of unmanned aerial vehicles when flying with a low speed in a cluster mode between buildings.
Description
Technical field
The present invention relates to intelligent transportation system, be specifically related to a kind of unmanned plane communication system based on intelligent transportation.
Background technology
Existing unmanned plane anticollision communication system, by integrated large quantity sensor, gathers unmanned plane running status in-flight, analyzes the possibility that whether there is collision; Although high sensor can obtain precision data, it is very limited that it gathers distance, when flying speed is in middle and high speed, cannot give warning in advance, even if or give warning in advance, unmanned plane does not have time enough to dodge fully yet, thus causes possible aircraft accident.Further, the unmanned plane cluster simultaneously flown, high in the clouds intelligent transportation service is adopted to provide certain early warning and control, but consider in actual use, in view of the complicacy of city building, the existence of the technical matterss such as network popularization degree and connective stability, this technology is not able to better, more widely apply always.In addition, utilize the unmanned plane trunking communication technology of Wireless Fidelity, although obtain certain early warning effect, easily there is crosstalk in frequency and the transportation network control frequency of adopting wireless fidelity technology, has safely potential potential safety hazard to public transport.Therefore, to expand and the mechanics of communication promoted between unmanned plane cluster seems particularly important.
Summary of the invention
For above-mentioned prior art, the object of the invention is to provide a kind of unmanned plane communication system based on intelligent transportation, it is intended to solve existing unmanned plane anticollision communication system, and to there is information acquisition scope less, there is the poor and potential safety hazard of practical effect in its high in the clouds intelligent transportation service and wireless technology, and lacks the technical matterss such as the communication between unmanned plane cluster respectively.
For achieving the above object, the technical solution used in the present invention is as follows:
Based on a unmanned plane communication system for intelligent transportation, comprise sensor: sensorcraft status signal output feedback signal; Unmanned Aerial Vehicle Data bus: the feedback signal of receiving sensor also exports unmanned plane state timer signal; Remote information communication unit: comprising network access equipment and remote information control module, network access equipment and internet carry out information interaction and output signal to remote information control module and/or remote information control module input signal to network access equipment and internet; Remote information control module is also connected with Unmanned Aerial Vehicle Data bus; Visible ray short-path signal transceiver: carry out information interaction with remote information control module.
In such scheme, preferably, described sensor, comprises height above sea level measuring instrument, alignment sensor and/or tachogenerator.The velocity information of real-time detection unmanned plane and/or positional information.
In such scheme, preferably, described feedback signal, comprises and has unmanned plane height, the signal of position longitude and latitude and/or airspeed information feature.
In such scheme, preferably, described network access equipment, comprises the digital signal transceiver of accessing Internet: input and/or outputting communication signal; Digital signal processing unit: process, reception and/or transmission communication signal; Sound synthesizer: receive and/or send voice communication signal; Sound synthesizer is also connected with microphone and loudspeaker; Digital signal processing unit is also connected with Charge Coupled Device (CCD) CCD.Network access equipment provides high in the clouds transport services access port; Digital signal processing unit, achieves the center-control of unmanned plane early warning system.CCD, microphone and loudspeaker are used for task object acquisition of information or output performed by unmanned plane.
In such scheme, described remote information control module, comprises field programmable gate module: accepting state clock signal, exports and controls clock signal and/or communication clock signal.For digital signal processing unit provides auxiliary process, auxiliary input and/or auxiliary output.
In such scheme, described visible ray short-path signal transceiver, connects field programmable gate module: light signal and electric signal are changed, and receives and/or sends photoelectric communication signal; Optical fiber link comprising with field programmable gate model calling: comprising signal transmitting path and Signal reception path; The ASIC be connected with optical fiber link: send and/or received code electric signal; Photoelectric communication device: light signal and/or electric signal are changed, receives and/or sends coded signal.Provide not by short distance optical communication between the unmanned plane cluster of high in the clouds transport services; Optical communication can not crosstalk public transport wireless frequency; There is high information transmission stability.
In such scheme, preferably, described visible ray short-path signal transceiver, also comprises laser radar.
In such scheme, preferably, described coded signal, comprises the coded light signal with IEEE802.15.7 agreement definition Physical layer and medium access control layer; Also comprise the electric signal with encoded clock.Use in agreement " 0 " and " 1 " that Synchronization realizes in data.Achieve unmanned plane height, the optical communication of speed and/or positional information and/or electric communication coding.
Beneficial effect of the present invention: in real time and not via high in the clouds transport services, unmanned plane during flying information near unmanned plane obtains, dodges possible collision in advance; Communication frequency can not crosstalk public transport wireless frequency, expands communication bandwidth, and the high and communication efficiency of stability significantly promotes.
Accompanying drawing explanation
Fig. 1 is modular structure schematic diagram of the present invention;
Fig. 2 is visible ray short-path signal transceiver embodiments schematic diagram of the present invention;
Fig. 3 is trans-impedance amplifier embodiment schematic diagram of the present invention;
In figure: 1a_EQ, 1b_EQ-balanced device, 2_CDR & SER.-clock and data recovery and deserializer, 3_DSW-phase compensator, the serializer of 4_20Gbps & SER.-20Gbps speed, 5_DE. & Drive, 9_DE. & Drive-postemphasises driver, 6_ASIC-special IC, 7_CDR-clock and data recovery, 8_MUX-traffic pilot, 11_LEDDR.-LED drive, 12_TIA-trans-impedance amplifier, 13_LED-light emitting diode, 14_PIND., D1, D2, D3-photodiode, 17-field programmable gate module, Zpd-impedance, Vpd-impedance voltage, LFC-photoelectric communication device.
Embodiment
All features disclosed in this instructions, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Below in conjunction with accompanying drawing, the present invention will be further described:
Fig. 1 is modular structure schematic diagram of the present invention, and a kind of unmanned plane communication system based on intelligent transportation, comprises sensor: sensorcraft status signal output feedback signal; Unmanned Aerial Vehicle Data bus: the feedback signal of receiving sensor also exports unmanned plane state timer signal; Remote information communication unit: comprising network access equipment and remote information control module, network access equipment and internet carry out information interaction and output signal to remote information control module and/or remote information control module input signal to network access equipment and internet; Remote information control module is also connected with Unmanned Aerial Vehicle Data bus; Visible ray short-path signal transceiver 18: carry out information interaction with remote information control module.During use, present system is mounted in various unmanned plane communication system.
Embodiment 1
Fig. 2 is visible ray short-path signal transceiver embodiments schematic diagram of the present invention, and described optical fiber link, comprises signal transmitting path and Signal reception path.
Embodiment 2
Field programmable gate module 17: at least export two electric signal, each electrical signal rate is at least greater than 1Gbps/s.Signal transmitting path, comprises the first balanced device 1a: connect field programmable gate module 17 by hypervelocity Ethernet interface XLAUI, receives electric signal; CDR & deserializer 2: receive the electric signal after the first balanced device 1a compensation, carry out clock and data recovery and unstring; Phase compensator 3: the electric signal receiving CDR & deserializer 2, carries out phase-fitting between the dynamic and stalic state electric signal; Serializer 4: the electric signal after receiving phase compensator 3 matching, exports serial electric signal; Postemphasis driver 5: the electric signal receiving serializer 4, carries out postemphasising and amplifieroperation, exports electric signal; ASIC6: connect the driver 5 that postemphasises by physical medium associated layers interface PMD.
Embodiment 3
Signal reception path, comprises ASIC6: receive the electric signal that photoelectric communication device LFC uploads; Second balanced device 1a: receive the electric signal that ASIC sends the first balanced device 1a in respective signal transmitting path; CDR7: receive the electric signal after the second balanced device 1a compensation, carry out clock and data recovery; Traffic pilot 8: receive the electric signal after CDR7 recovers, export at least two Half Speed electric signal; Postemphasis driver 9: the Half Speed electric signal receiving traffic pilot 8, carries out postemphasising and amplifieroperation.Field programmable gate module 17: connect the driver 9 that postemphasises by hypervelocity Ethernet interface XLAUI, at least receives two Half Speed electric signal.
Embodiment 4
Described photoelectric communication device LFC, comprises LED driver 11: connect ASIC6 by transfer bus, exports control signal; LED (13): the control signal receiving LED driver 11, sends light signal according to electric signal particular sequence pattern; PIN photodiode 14: receiving optical signals, is converted to electric signal; Trans-impedance amplifier 12: connect ASIC6 by transfer bus, receives the electric signal of PIN photodiode 14, exports ASIC6 to.
Embodiment 5
Fig. 3 is trans-impedance amplifier embodiment schematic diagram of the present invention, and described trans-impedance amplifier 12 comprises cross-linked first couple of differential input transistor Q1, Q2 and second couple of differential input transistor Q3, Q4; Each transistor base is connected with electric capacity, grounded emitter; Cross-coupled manner can under high frequency input, effectively reduce input signal response modes because of impedance Z pd1, impedance Z pd2 cause feature weaken effect; Resistance R3 and resistance R4 can provide dot peak detection and increase bandwidth; D1, D2, D3 are the photodiode of line arrangement.
Embodiment 6
LED 13 lamp choosing wavelength is interval at 850nm, 1310nm, 1490nm, CW-DM, 1550nm, DWDM; LED quantity and arrangement comprise lattice array and/or linear array and/or face array and/or body arrangement; The mode of enabling is photoinduction startup, passive light startup, the selection of optoacoustic control combination technology, the mechanically integrated module of photoinduction and/or alternatives.
Embodiment 7
In communication process, based on above embodiment, LED 13 sends packet, and photodiode 14 completes clock synchronous by connecting ASIC6 across sufficient amplifier 12, ensures the time accuracy that sampling occurs; LED driver 11 arranges the light period of LED13 in advance, keeps and the photodiode 14 same cycle, sends single data delay and be no more than 3ms in one-period.In receiving course, when 1/4, LED13 of the leading LED13 light period of photodiode 14 clock sends logical zero (lower optical densities), photodiode 14 starts to sample 1; When LED13 sends logical one (high light intensity), photodiode 14 starts to sample 2, ASIC6 and compares two and sample and obtain coded message.In the present invention, the LED switching rate that " flickers " is very high, and " bright " duration is extremely short.
There is unknown mutation in hardware advances, the progress of technology is the reference of selection standard.But for changing bad invention, or cost viewpoint, only from the selection of technical scheme of practicality.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly belongs to those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (6)
1., based on a unmanned plane communication system for intelligent transportation, it is characterized in that, comprise
Sensor: sensorcraft status signal output feedback signal;
Unmanned Aerial Vehicle Data bus: the feedback signal of receiving sensor also exports unmanned plane state timer signal;
Remote information communication unit: comprising network access equipment and remote information control module, network access equipment and internet carry out information interaction and output signal to remote information control module and/or remote information control module input signal to network access equipment and internet;
Remote information control module is also connected with Unmanned Aerial Vehicle Data bus;
Visible ray short-path signal transceiver: carry out information interaction with remote information control module.
2. a kind of unmanned plane communication system based on intelligent transportation according to claim 1, is characterized in that, described sensor, comprises alignment sensor and/or tachogenerator.
3. a kind of unmanned plane communication system based on intelligent transportation according to claim 1, is characterized in that, described feedback signal, comprises the signal with unmanned plane position longitude and latitude and/or airspeed information feature.
4. a kind of unmanned plane communication system based on intelligent transportation according to claim 1, it is characterized in that, described network access equipment, comprises
The digital signal transceiver of accessing Internet: input and/or outputting communication signal;
Digital signal processing unit: process, reception and/or transmission communication signal;
Sound synthesizer: receive and/or send voice communication signal.
5. a kind of unmanned plane communication system based on intelligent transportation according to claim 1, it is characterized in that, described remote information control module, comprises field programmable gate module: accepting state clock signal, exports and controls clock signal and/or communication clock signal.
6. a kind of unmanned plane communication system based on intelligent transportation according to claim 1, it is characterized in that, described visible ray short-path signal transceiver, connects field programmable gate module: light signal and electric signal are changed, and receives and/or sends photoelectric communication signal; Comprising
With the optical fiber link of field programmable gate model calling: comprising signal transmitting path and Signal reception path;
The ASIC be connected with optical fiber link: send and/or received code electric signal;
Photoelectric communication device: light signal and/or electric signal are changed, receives and/or sends coded signal.
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| CN105608931A (en) * | 2016-02-26 | 2016-05-25 | 陈昊 | Method and device for managing unmanned aerial aircraft |
| CN105843255A (en) * | 2016-05-12 | 2016-08-10 | 深圳市艾博航空模型技术有限公司 | Unmanned aerial vehicle cluster automatic flight crashproof apparatus and crashproof method |
| CN108521802A (en) * | 2017-06-29 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Control method, control terminal and the unmanned plane of unmanned plane |
| CN108881870A (en) * | 2018-04-26 | 2018-11-23 | 肖剑 | A kind of intelligent transportation system based on optical communication |
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