Machine-ground ultraviolet line-of-sight communication system

Abstract

The system mainly comprises an unmanned aerial vehicle, an unmanned wheeled vehicle, an airborne and ground end ultraviolet communication receiving and transmitting end, a serial port receiving and transmitting antenna, a serial port USB mutual conversion module and a computer. The unmanned aerial vehicle and the unmanned wheeled vehicle serve as air and ground communication carriers respectively, and carry corresponding ultraviolet communication receiving and transmitting ends to achieve mutual conversion and interaction of ultraviolet light signals and digital electric signals. A first serial port receiving and transmitting antenna on the unmanned wheeled vehicle is responsible for conversion of digital signals and electromagnetic wave signals, is in wireless connection with a second serial port receiving and transmitting antenna, and is connected with a computer through a serial port USB mutual conversion module. The computer comprehensively monitors and controls the system, and can send instructions and receive and analyze data in real time. According to the system, ultraviolet sight distance communication is utilized, the anti-interference performance is high, the confidentiality is good, the requirement for stable and efficient communication between the unmanned aerial vehicle and the unmanned wheeled vehicle in the complex environment can be met, and the system has important application value in the fields of military affairs, search and rescue, special industrial monitoring and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field, concretely is a kind of machine ground ultraviolet line-of-sight communication system for realizing the communication between unmanned aerial vehicle and unmanned wheeled vehicle based on ultraviolet line-of-sight. BACKGROUND

[0002] Ultraviolet light is the general term of wavelength in 400nm-10nm radiation in electromagnetic spectrum, cannot cause human vision, frequency is higher than visible light, lower than X-ray.

[0003] Day-blind waveband ultraviolet light wavelength is 200nm to 280nm, it utilizes the strong scattering characteristics of atmosphere to this waveband, can realize non line-of-sight communication, even if transmitting and receiving end is not in direct vision range, also can establish communication link through scattered light, increases communication flexibility and concealment;Day-blind waveband ultraviolet photon energy is higher, can carry more information, it is attenuated when propagating in atmosphere non line-of-sight, effective communication distance is greatly influenced by environmental factors.In military, search and rescue, special industrial monitoring and other fields, day-blind waveband ultraviolet light line-of-sight communication has important application value, day-blind waveband ultraviolet light non line-of-sight communication has important application potential.

[0004] Traditional ultraviolet communication system is mostly static non line-of-sight system, system integration is low, transmitting and receiving end cannot be automatically aligned, each functional module is independent, its transmitting end and receiving end contain multiple separate components, not only bulky, high cost, but also connection line is complex, is easily disturbed, stability and reliability are poor, transmitting and receiving end cannot be automatically aligned, so that system is difficult to interact information in real time, stably, not only low efficiency, also can lead to communication interruption, in unmanned aerial vehicle platform ultraviolet communication system, ultraviolet communication system without real-time alignment cannot adapt to the rapid movement of unmanned aerial vehicle, leading to poor communication quality, data is easily lost;Meanwhile, the requirement difference of different application scenarios to ultraviolet communication system performance and function, traditional ultraviolet communication system is mostly experimental equipment, without targeted function design, difficult to meet different functional requirements.

[0005] It should be noted that the information disclosed in the above BACKGROUND section is only for understanding the background of the present application, and therefore can include information that does not constitute the prior art known to those of ordinary skill in the art. SUMMARY

[0006] The main purpose of the utility model is to overcome the defects in the above background art, provide a kind of machine ground ultraviolet line-of-sight communication system.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A kind of machine ground ultraviolet line-of-sight communication system, comprising:

[0009] Unmanned aerial vehicle (1), as air communication carrier;

[0010] The unmanned wheeled vehicle (32) is used as a ground communication carrier.

[0011] The on-board ultraviolet communication transceiver is mounted on the unmanned aerial vehicle (1) and is connected to the unmanned aerial vehicle (1) to realize signal interaction.

[0012] The ground end ultraviolet communication transceiver is mounted on the unmanned wheeled vehicle (32) and is connected to the unmanned wheeled vehicle (32) to realize signal interaction.

[0013] The first serial port transceiver antenna (37) is arranged on the unmanned wheeled vehicle (32) and is used to convert the digital signals related to the unmanned wheeled vehicle (32) into electromagnetic wave signals for emission and to receive external electromagnetic wave signals and convert them into digital signals.

[0014] The second serial port transceiver antenna (39) is bidirectionally wirelessly connected to the first serial port transceiver antenna (37).

[0015] The serial port USB interconversion module (40) is connected to the second serial port transceiver antenna (39) and is used to realize conversion between serial port signals and USB signals.

[0016] The computer (41) is connected to the serial port USB interconversion module (40) through a USB interface and is used to monitor and control the system, realize instruction sending, data receiving and analysis.

[0017] The first serial port transceiver antenna (37) is bidirectionally wirelessly connected to the second serial port transceiver antenna (39), the second serial port transceiver antenna (39) is bidirectionally connected to the serial port USB interconversion module (40), and the serial port USB interconversion module (40) is bidirectionally connected to the computer (41).

[0018] Further, the bottom of the unmanned aerial vehicle (1) is fixedly connected with a first stepper motor housing (201), the first stepper motor housing (201) is connected to a first stepper motor rotor (203) through a bearing linkage, the first stepper motor rotor (203) is coaxially connected with a two-dimensional holder horizontal base (202), the two-dimensional holder horizontal base (202) is fixedly connected with a first two-dimensional holder main arm (204), the first two-dimensional holder main arm (204) is fixedly connected with a second stepper motor housing (205), the second stepper motor housing (205) is connected to a second stepper motor rotor (206) through a bearing linkage, and the second stepper motor rotor (206) is fixedly connected with a first ultraviolet communication transceiver housing (207).

[0019] Further, the right side end surface of the first ultraviolet communication transceiver shell (207) is fixedly connected with a first ultraviolet light detector (3), a first zoom camera (4) and a first ultraviolet LED (5), and the inner wall of the first ultraviolet communication transceiver shell (207) is fixedly connected with a first ultraviolet LED driver (6), a first digital signal processing unit (7), a first voltage converter (8) and a first rechargeable battery (9).

[0020] Further, the bottom of the unmanned wheeled vehicle (32) is fixedly connected with a third stepper motor shell (151), the third stepper motor shell (151) is connected to a third stepper motor rotor (152) through a bearing linkage, the third stepper motor rotor (152) is coaxially connected with a two-dimensional holder base (153), the two-dimensional holder base (153) is fixedly connected with a second two-dimensional holder main arm (154), the second two-dimensional holder main arm (154) is fixedly connected with a fourth stepper motor shell (155), the fourth stepper motor shell (155) is connected to a fourth stepper motor rotor (156) through a bearing linkage, and the fourth stepper motor rotor (156) is fixedly connected with a second ultraviolet communication transceiver shell (157).

[0021] Further, the right side end surface of the second ultraviolet communication transceiver shell (157) is fixedly connected with a second ultraviolet light detector (12), a second zoom camera (13) and a second ultraviolet LED (14), and the inner wall of the second ultraviolet communication transceiver shell (157) is fixedly connected with a second voltage converter (16), a second digital signal processing unit (17), a second ultraviolet LED driver (18) and a second rechargeable battery (19).

[0022] Further, the first digital signal processing unit (7) is bidirectionally connected with a drone flight controller (11) through a first flexible wire (10), the first flexible wire (10) transmits a digital state signal output by the flight controller (11), the first flexible wire (10) transmits a digital control signal output by the first digital signal processing unit (7), the output end of the first digital signal processing unit (7) is connected with the input end of the first ultraviolet LED driver (6), the input end of the first digital signal processing unit (7) is connected with the output end of the first ultraviolet light detector (3), the first digital signal processing unit (7) is bidirectionally connected with the first zoom camera (4), and the output end of the first ultraviolet LED driver (6) is connected with the input end of the first ultraviolet LED (5).

[0023] Further, the second digital signal processing unit (17) is connected with the unmanned vehicle digital signal processor (36) through a second flexible wire (38), the second flexible wire (38) transmits the digital control signal output by the unmanned vehicle digital signal processor (36), and the second flexible wire (38) transmits the digital state signal output by the second digital signal processing unit (17), the output end of the second digital signal processing unit (17) is connected with the input end of the second ultraviolet LED driver (18), the input end of the second digital signal processing unit (17) is connected with the output end of the second ultraviolet light detector (12), the second digital signal processing unit (17) is connected with the second zoom camera (13) bidirectionally, and the output end of the second ultraviolet LED driver (18) is connected with the input end of the second ultraviolet LED (14).

[0024] Further, the bottom inner surfaces of the unmanned wheeled vehicle (32) are fixedly connected with the outer surfaces of the first speed reduction motor (28), the second speed reduction motor (29), the third speed reduction motor (30) and the fourth speed reduction motor (31) respectively, the first rotor (24) of the first speed reduction motor (28) is coaxially connected with the first unmanned vehicle wheel (20), the second rotor (25) of the second speed reduction motor (29) is coaxially connected with the second unmanned vehicle wheel (21), the third rotor (26) of the third speed reduction motor (30) is coaxially connected with the third unmanned vehicle wheel (22), and the fourth rotor (27) of the fourth speed reduction motor (31) is coaxially connected with the fourth unmanned vehicle wheel (23).

[0025] Further, the first ultraviolet light detector (3) carried on the unmanned aerial vehicle (1) and the second ultraviolet light detector (12) carried on the unmanned wheeled vehicle (32) are ultraviolet light detectors for receiving solar blind ultraviolet band signals.

[0026] The air-ground ultraviolet line-of-sight communication system provided by the utility model overcomes the defects of insufficient anti-interference ability, insufficient flexibility and insufficient integration of the existing air-ground communication system in a complex environment, and provides a stable, efficient and safe air-ground ultraviolet line-of-sight communication system.

[0027] In some embodiments, the system is composed of an unmanned aerial vehicle, an unmanned wheeled vehicle, an ultraviolet communication transceiver and a computer. The bottom of the unmanned aerial vehicle is connected with a stepping motor shell and other components, and is connected with the ultraviolet communication transceiver through a bearing and a two-dimensional holder. The transceiver is integrated with external devices such as an ultraviolet light detector, a zoom camera and an ultraviolet LED, and internal components such as an ultraviolet LED driver, a digital signal processing unit, a voltage converter and a rechargeable battery. The unmanned wheeled vehicle is also connected with the ultraviolet communication transceiver through a similar structure, and is equipped with corresponding communication and control components.

[0028] In terms of signal transmission connection, the digital signal processing unit and the unmanned aerial vehicle flight controller are connected by flexible wires in both directions to transmit digital state and control signals and establish signal connection with the ultraviolet LED driver, the ultraviolet light detector, the zoom camera, etc. The digital signal processing unit of the ultraviolet communication transceiver carried by the unmanned wheeled vehicle is connected by flexible wires in both directions with the digital signal processor of the unmanned vehicle, the digital signal processor of the unmanned vehicle is connected by the first and second serial ports with the computer in both directions to realize signal transmission between the unmanned vehicle and the computer, and the digital signal processor of the unmanned vehicle is connected with the multi-channel motor driver to realize control of the reduction motor.

[0029] The uplink transmission of unmanned aerial vehicle control information and unmanned vehicle control information, the computer transmits unmanned aerial vehicle position control information and unmanned wheeled vehicle position control information to the second serial transceiver antenna via the serial USB mutual conversion module, the second serial transceiver antenna transmits the unmanned aerial vehicle position control information and the unmanned wheeled vehicle position control information to the first serial transceiver antenna after microwave wireless transmission, and sends them to the digital signal processor of the unmanned wheeled vehicle, the digital signal processor of the unmanned wheeled vehicle controls the multi-channel motor driver with the unmanned wheeled vehicle control information to make the differential rotation of the reduction motor, realizes the movement of the unmanned wheeled vehicle, and the digital signal processor of the unmanned wheeled vehicle transmits the unmanned aerial vehicle position control information to the digital signal processing unit of the ground end ultraviolet communication transceiver via the flexible antenna, the digital signal processing unit of the ground end ultraviolet communication transceiver encodes and modulates the digital signal and transmits it to the ultraviolet LED driver, the ultraviolet LED driver controls the flashing of the ultraviolet LED to realize wireless transmission of the ultraviolet signal, then the ultraviolet light detector of the unmanned aerial vehicle end ultraviolet communication transceiver detects, filters and amplifies the ultraviolet signal to obtain digital signal, and transmits the digital signal to the digital signal processing unit of the unmanned aerial vehicle end ultraviolet communication transceiver for processing to obtain unmanned aerial vehicle position control information, then the digital signal processing unit of the unmanned aerial vehicle end ultraviolet communication transceiver transmits the unmanned aerial vehicle position control information to the flight controller via flexible wires to realize the position movement of the unmanned aerial vehicle.

[0030] The downlink transmission of the unmanned aerial vehicle state information, the unmanned aerial vehicle flight controller transmits the unmanned aerial vehicle digital state signal to the digital signal processing unit of the unmanned aerial vehicle end ultraviolet communication transceiver through the flexible wire, the digital signal processing unit of the unmanned aerial vehicle end ultraviolet communication transceiver decodes, encodes and modulates the unmanned aerial vehicle digital state signal and then transmits the signal to the ultraviolet LED driver of the unmanned aerial vehicle end ultraviolet communication transceiver, the ultraviolet LED driver controls the flashing of the ultraviolet LED, realizes the wireless transmission of the ultraviolet signal, then the ultraviolet light detector of the ground end ultraviolet communication transceiver detects, filters and amplifies the ultraviolet signal and then transmits the signal to the digital signal processing unit of the ground end ultraviolet communication transceiver, the digital signal processing unit of the ground end ultraviolet communication transceiver demodulates and decodes the digital signal and then obtains the unmanned aerial vehicle digital state signal, the ground end ultraviolet communication transceiver transmits the unmanned aerial vehicle digital state signal to the digital signal processor of the unmanned wheeled vehicle through the flexible antenna, then the digital signal processor of the unmanned wheeled vehicle transmits the unmanned aerial vehicle digital state signal to the first serial port transceiver antenna, the first serial port transceiver antenna transmits the unmanned aerial vehicle digital state signal through microwave wireless transmission and then the signal reaches the second serial port transceiver antenna, is sent to the serial port USB interconversion module, the serial port USB interconversion module converts the unmanned aerial vehicle digital state signal from serial port to USB and then the signal reaches the computer, the computer analyzes the unmanned aerial vehicle state information and displays the information in real time, and the real-time feedback of the unmanned aerial vehicle state information is realized.

[0031] The power supply relationship of the ultraviolet communication transceiver end, the charging battery supplies power for the voltage converter, and the voltage converter converts the power supply voltage into a voltage suitable for the use of devices such as the ultraviolet light detector, the zoom camera, the ultraviolet LED driver and the digital signal processing unit.

[0032] The power supply relationship of the unmanned wheeled vehicle, the charging battery supplies power for the voltage converter, and the voltage converter converts the power supply voltage into a voltage suitable for the use of devices such as the multi-channel motor driver and the unmanned vehicle digital signal processor.

[0033] The machine-ground ultraviolet line-of-sight communication system has the following beneficial effects:

[0034] (1) The ultraviolet communication system has excellent anti-interference performance, adopts ultraviolet line-of-sight communication, can effectively resist complex electromagnetic environment interference, and guarantees the reliability and stability of communication.

[0035] (2) The ultraviolet communication system can be aligned in real time, flexibly adjusts the angle of the communication transceiver end by using the two-dimensional holder, can adapt to the position change of the unmanned aerial vehicle and the unmanned vehicle, and has high anti-interference performance, high communication efficiency and strong adaptability.

[0036] (3) The ultraviolet communication system has strong function pertinence, the ultraviolet communication transceiver end is carried on the unmanned aerial vehicle and the unmanned vehicle, and the adjustment of the position and the attitude of the unmanned aerial vehicle is realized through the ultraviolet wireless transmission of the state information and the control information.

[0037] (4) The ultraviolet communication system has high confidentiality, and the characteristics of ultraviolet light communication make the signal difficult to be intercepted and cracked, thereby meeting the requirement of high confidentiality in a communication scene.

[0038] The utility model can be applied to the field of military, search and rescue and special industrial monitoring, which has high requirements on communication reliability, stability and confidentiality.

[0039] Other advantages of the utility model embodiment will be further described in the following. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is system schematic diagram of the utility model embodiment;

[0041] Figure 2 It is airborne ultraviolet communication transceiver schematic diagram of the utility model embodiment;

[0042] Figure 3 It is airborne ultraviolet communication transceiver side sectional view of the utility model embodiment;

[0043] Figure 4 It is airborne ultraviolet communication transceiver internal module diagram of the utility model embodiment;

[0044] Figure 5 It is unmanned vehicle ultraviolet communication transceiver schematic diagram of the utility model embodiment;

[0045] Figure 6 It is unmanned vehicle ultraviolet communication transceiver side sectional view of the utility model embodiment;

[0046] Figure 7 It is unmanned vehicle ultraviolet communication transceiver internal module diagram of the utility model embodiment;

[0047] Figure 8 It is unmanned vehicle internal structure diagram of the utility model embodiment;

[0048] Fig. 1: 1 UAV, 2 UAV end two-dimensional holder, 3 first ultraviolet light detector, 4 first zoom camera, 5 first ultraviolet LED, 6 first ultraviolet LED driver, 7 first digital signal processing unit, 8 first voltage converter, 9 first rechargeable battery, 10 first flexible wire, 11 flight controller, 12 second ultraviolet light detector, 13 second zoom camera, 14 second ultraviolet LED, 15 unmanned wheeled vehicle end two-dimensional holder, 16 second voltage converter, 17 second digital signal processing unit, 18 second ultraviolet LED driver, 19 second rechargeable battery, 20 first unmanned vehicle wheel, 21 second unmanned vehicle wheel, 22 third unmanned vehicle wheel, 23 fourth unmanned vehicle wheel, 24 first rotor, 25 second rotor, 26 third rotor, 27 fourth rotor, 28 first speed reduction motor, 29 second speed reduction motor, 30 third speed reduction motor, 31 fourth speed reduction motor, 32 unmanned wheeled vehicle, 33 third voltage converter, 34 third rechargeable battery, 35 multiplex motor driver, 36 unmanned vehicle digital signal processor, 37 first serial transceiver antenna, 38 second flexible wire, 39 second serial transceiver antenna, 40 serial USB conversion module, 41 computer, 151 third stepper motor housing, 152 third stepper motor rotor, 153 two-dimensional holder base, 154 second two-dimensional holder main arm, 155 stepper motor housing, 156 fourth stepper motor rotor, 157 second ultraviolet communication transceiver end housing, 201 first stepper motor housing, 202 two-dimensional holder horizontal base, 203 first stepper motor rotor, 204 first two-dimensional holder main arm, 205 second stepper motor housing, 206 second stepper motor rotor, 207 first ultraviolet communication transceiver end housing. DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described in detail below. It should be emphasized that the following description is only exemplary and is not intended to limit the scope of the present application and its applications.

[0050] It should be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or indirectly on or connected to the other element by way of another element. In addition, the connection can be fixed or coupled, or coupled or communicated.

[0051] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0052] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited.

[0053] The utility model embodiment provides a kind of ultraviolet machine ground visual range communication system, this system mainly includes: unmanned plane, for carrying airborne ultraviolet communication transceiver;Airborne ultraviolet communication transceiver, for converting received ultraviolet light signal into digital electric signal and transmission to unmanned plane platform, and, the digital electric signal generated by unmanned plane is converted into ultraviolet light signal and is emitted;Ground end ultraviolet communication transceiver, for converting received ultraviolet light signal into digital electric signal and transmission to first serial port transceiver antenna, and, the digital electric signal received from first serial port transceiver antenna is converted into ultraviolet light signal and is emitted to airborne ultraviolet communication transceiver;Unmanned vehicle, for carrying ground end ultraviolet communication transceiver;First serial port transceiver antenna, for converting serial digital electric signal into electromagnetic wave signal that propagates in free space.

[0054] In one specific embodiment, a kind of ground-based ultraviolet visual range communication system, including unmanned aerial vehicle 1, the bottom of the unmanned aerial vehicle 1 is fixedly connected with first stepper motor housing 201, the first stepper motor housing 201 is connected to first stepper motor rotor 203 through bearing linkage, the first stepper motor rotor 203 is coaxially connected with two-dimensional holder horizontal base 202, the two-dimensional holder horizontal base 202 is fixedly connected with first two-dimensional holder main arm 204, the first two-dimensional holder main arm 204 is fixedly connected with second stepper motor housing 205, the second stepper motor housing 205 is connected to second stepper motor rotor 206 through bearing linkage, the second stepper motor rotor 206 is fixedly connected with first ultraviolet communication transceiver housing 207, the right side end surface of the first ultraviolet communication transceiver housing 207 is fixedly connected with first ultraviolet light detector 3, first zoom camera 4, first ultraviolet LED 5, the inner wall of the first ultraviolet communication transceiver housing 207 is fixedly connected with first ultraviolet LED driver 6, first digital signal processing unit 7, first voltage converter 8, first rechargeable battery 9, the second ultraviolet communication transceiver housing 157 is connected to the end surface of fourth stepper motor rotor 156, the right side end surface of the second ultraviolet communication transceiver housing 157 is fixedly connected with second ultraviolet light detector 12, second zoom camera 13, second ultraviolet LED 14, the inner wall of the second ultraviolet communication transceiver housing 157 is fixedly connected with second voltage converter 16, second digital signal processing unit 17, second ultraviolet LED driver 18, second rechargeable battery 19, the fourth stepper motor rotor 156 is connected to fourth stepper motor housing 155 through bearing linkage, the fourth stepper motor housing 155 is fixedly connected with second two-dimensional holder main arm 154, the second two-dimensional holder main arm 154 is fixedly connected with two-dimensional holder base 153, the two-dimensional holder base 153 is coaxially connected with third stepper motor rotor 152, the third stepper motor rotor 152 is connected to third stepper motor housing 151 through bearing linkage, the bottom of the third stepper motor housing 151 is fixedly connected with the upper surface of unmanned wheeled vehicle 32.

[0055] The first digital signal processing unit 7 is bidirectionally connected with unmanned aerial vehicle flight controller 11 through first flexible wire 10, the first flexible wire 10 transmits digital state signal output by flight controller 11, and the first flexible wire 10 transmits digital control signal output by first digital signal processing unit 7, the output end of the first digital signal processing unit 7 is connected with the input end of first ultraviolet LED driver 6, the input end of the first digital signal processing unit 7 is connected with the output end of first ultraviolet light detector 3, the first digital signal processing unit 7 is bidirectionally connected with first zoom camera 4, and the output end of the first ultraviolet LED driver 6 is connected with the input end of first ultraviolet LED 5.

[0056] The output end of the first rechargeable battery 9 is connected with the input end of the first voltage converter 8, and the output end of the first voltage converter 8 is connected with the input end of the first ultraviolet light detector 3, the first zoom camera 4, the first ultraviolet LED driver 6 and the first digital signal processing unit 7 respectively.

[0057] The second digital signal processing unit 17 is bidirectionally connected with the unmanned vehicle digital signal processor 36 through the second flexible wire 38, the second flexible wire 38 transmits the digital control signal output by the unmanned vehicle digital signal processor 36, and the second flexible wire 38 transmits the digital state signal output by the second digital signal processing unit 17, the output end of the second digital signal processing unit 17 is connected with the input end of the second ultraviolet LED driver 18, the input end of the second digital signal processing unit 17 is connected with the output end of the second ultraviolet light detector 12, the second digital signal processing unit 17 is bidirectionally connected with the second zoom camera 13, and the output end of the second ultraviolet LED driver 18 is connected with the input end of the second ultraviolet LED 14.

[0058] The output end of the second rechargeable battery 19 is connected with the input end of the second voltage converter 16, and the output end of the second voltage converter 16 is connected with the input end of the second ultraviolet light detector 12, the second zoom camera 13, the second ultraviolet LED driver 18 and the second digital signal processing unit 17 respectively.

[0059] The unmanned vehicle digital signal processor 36 is bidirectionally connected with the first serial transceiver antenna 37 and the second flexible wire 38 respectively, the unmanned vehicle digital signal processor 36 outputs the digital state signal to the first serial transceiver antenna 37, the first serial transceiver antenna 37 outputs the digital control signal to the second digital signal processing unit 17, the second flexible wire 38 transmits the digital control signal output by the unmanned vehicle digital signal processor 36, and the second flexible wire 38 transmits the digital state signal output by the second digital signal processing unit 17, the output end of the unmanned vehicle digital signal processor 36 is connected with the input end of the multi-channel motor driver 35, and the output end of the multi-channel motor driver 35 is connected with the input end of the first speed reduction motor 28, the second speed reduction motor 29, the third speed reduction motor 30 and the speed reduction motor 31 respectively.

[0060] The bottom inner surface of the unmanned wheeled vehicle 32 is fixedly connected with the outer surface of the first, second, third and fourth reduction motors 28, 29, 30 and 31 respectively, the first rotor 24 of the first reduction motor 28 is coaxially connected with the first unmanned vehicle wheel 20, the second rotor 25 of the second reduction motor 29 is coaxially connected with the second unmanned vehicle wheel 21, the third rotor 26 of the third reduction motor 30 is coaxially connected with the third unmanned vehicle wheel 22, and the fourth rotor 27 of the fourth reduction motor 31 is coaxially connected with the fourth unmanned vehicle wheel 23.

[0061] The output end of the third rechargeable battery 34 is connected with the input end of the third voltage converter 33, and the output end of the third voltage converter 33 is connected with the input end of the digital signal processor 36 and the multi-channel motor driver 35 respectively.

[0062] The first serial port transceiving antenna 37 is bidirectionally connected with the second serial port transceiving antenna 39, the second serial port transceiving antenna 39 is bidirectionally connected with the serial port USB conversion module 40, and the serial port USB conversion module 40 is bidirectionally connected with the computer 41.

[0063] The ultraviolet detector 3 receives a solar blind ultraviolet wave band signal, and the ultraviolet detector 12 receives a solar blind ultraviolet wave band signal.

[0064] The working process of the utility model mainly contains unmanned aerial vehicle working process, unmanned wheeled vehicle working process and serial port transceiving antenna wireless transmission process three parts.

[0065] In the unmanned aerial vehicle working process, the flight controller 11 sends the digital state signal of itself, such as flight height, speed, attitude and the like, to the first digital signal processing unit 7 in real time through the first flexible wire 10 in the flight process, the first digital signal processing unit 7 sends the digital control signal to the first ultraviolet LED driver 6 through the first flexible wire 10 according to the received information and the preset communication strategy, and drives the first ultraviolet LED 5 to emit the ultraviolet light signal carrying information. At the same time, the first ultraviolet light detector 3 receives the ultraviolet light signal from the second ultraviolet LED 14 in real time, and converts it into an electric signal and transmits it to the first digital signal processing unit 7 for demodulation, decoding and the like. The first zoom camera 4 collects the image of the surrounding environment of the unmanned wheeled vehicle 32, and transmits the image to the first digital signal processing unit 7 for target detection, so as to provide coordinate information for the implementation of the alignment of the two-dimensional holder 2. The electric energy output by the first rechargeable battery 9 is converted into a suitable voltage by the first voltage converter 8, and is stably supplied to each component of the ultraviolet communication transceiving end.

[0066] The unmanned wheeled vehicle working process, the unmanned vehicle digital signal processor 36 communicates with the second digital signal processing unit 17 through the second flexible wire 38, receives the digital state signal from the unmanned aerial vehicle 1, and sends the digital control signal to the unmanned aerial vehicle 1. The unmanned vehicle digital signal processor 36 controls the operation of the first reduction motor 28, the second reduction motor 29, the third reduction motor 30, and the fourth reduction motor 31 through the multi-channel motor driver 35 according to the control signal from the first serial transceiver antenna 37, so as to realize the movement, steering and other operations of the unmanned wheeled vehicle 32. The unmanned vehicle digital signal processor 36 transmits the digital state signal from the unmanned aerial vehicle 1 to the first serial transceiver antenna 37, and the digital state signal reaches the computer 41 through the second serial transceiver antenna 39 and the serial USB conversion module 40, thereby providing reference information for the operator to control the unmanned aerial vehicle 1. The working mode of the second ultraviolet light detector 12, the second zoom camera 13, the second ultraviolet LED 14 and the related driving and processing unit on the unmanned wheeled vehicle 32 is similar to that of the unmanned aerial vehicle 1, so as to realize the ultraviolet line-of-sight communication between the unmanned wheeled vehicle 32 and the unmanned aerial vehicle 1. The second rechargeable battery 19 provides stable power supply for each component of the unmanned vehicle through the second voltage converter 16.

[0067] The serial transceiver antenna wireless transmission process, the unmanned vehicle digital signal processor 36 transmits the digital state signal to the first serial transceiver antenna 37, the first serial transceiver antenna 37 and the second serial transceiver antenna 39 establish a bidirectional wireless connection, and realize long-distance transmission of signals. The second serial transceiver antenna 39 is connected with the computer 41 through the serial USB conversion module 40, and the operator can monitor and control the entire ground-to-air ultraviolet line-of-sight communication system through the computer 40, including sending instructions, receiving and analyzing digital state information and other operations, so as to realize remote management of the unmanned aerial vehicle 1 and the unmanned wheeled vehicle 32 and processing of communication data.

[0068] The above is a further detailed description of the present application in combination with specific / preferred embodiments, and cannot be regarded as limiting the specific implementation of the present application to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, they can make a number of substitutions or modifications to the described embodiments.

Claims

1. A machine-to-ground ultraviolet line-of-sight communication system, characterized by, It comprises: a UAV (1) as an aerial communication carrier; a unmanned wheeled vehicle (32) as a ground communication carrier; an airborne ultraviolet communication transceiver mounted on the UAV (1) and connected with the UAV (1) to realize signal interaction; a ground ultraviolet communication transceiver mounted on the unmanned wheeled vehicle (32) and connected with the unmanned wheeled vehicle (32) to realize signal interaction; a first serial port transceiver antenna (37) arranged on the unmanned wheeled vehicle (32) for converting digital signals related to the unmanned wheeled vehicle (32) into electromagnetic wave signals for emission and receiving external electromagnetic wave signals and converting them into digital signals; a second serial port transceiver antenna (39) in bidirectional wireless connection with the first serial port transceiver antenna (37); a serial port-USB mutual conversion module (40) connected with the second serial port transceiver antenna (39) for realizing conversion between serial port signals and USB signals; a computer (41) connected with the serial port-USB mutual conversion module (40) through a USB interface for monitoring and controlling the system to realize instruction sending, data receiving and analysis.

2. The skyward ultraviolet line-of-sight communication system of claim 1, wherein, The bottom of the UAV (1) is fixedly connected with a first stepper motor housing (201), the first stepper motor housing (201) is connected to a first stepper motor rotor (203) through a bearing linkage, the first stepper motor rotor (203) is coaxially connected with a two-dimensional holder horizontal base (202), the two-dimensional holder horizontal base (202) is fixedly connected with a first two-dimensional holder main arm (204), the first two-dimensional holder main arm (204) is fixedly connected with a second stepper motor housing (205), the second stepper motor housing (205) is connected to a second stepper motor rotor (206) through a bearing linkage, and the second stepper motor rotor (206) is fixedly connected with a first ultraviolet communication transceiver housing (207).

3. The skyward ultraviolet line-of-sight communication system of claim 2, wherein, The right side surface of the first ultraviolet communication transceiver housing (207) is fixedly connected with a first ultraviolet light detector (3), a first zoom camera (4) and a first ultraviolet LED (5), and the inner wall of the first ultraviolet communication transceiver housing (207) is fixedly connected with a first ultraviolet LED driver (6), a first digital signal processing unit (7), a first voltage converter (8) and a first rechargeable battery (9).

4. The skyward ultraviolet line-of-sight communication system of claim 1, wherein, The bottom of the unmanned wheeled vehicle (32) is fixedly connected with a third stepper motor housing (151), the third stepper motor housing (151) is connected to a third stepper motor rotor (152) through a bearing linkage, the third stepper motor rotor (152) is coaxially connected with a two-dimensional holder base (153), the two-dimensional holder base (153) is fixedly connected with a second two-dimensional holder main arm (154), the second two-dimensional holder main arm (154) is fixedly connected with a fourth stepper motor housing (155), the fourth stepper motor housing (155) is connected to a fourth stepper motor rotor (156) through a bearing linkage, and the fourth stepper motor rotor (156) is fixedly connected with a second ultraviolet communication transceiver housing (157).

5. The skyward ultraviolet line-of-sight communication system of claim 4, wherein, The right end face of the second ultraviolet communication transceiver shell (157) is fixedly connected with a second ultraviolet light detector (12), a second zoom camera (13) and a second ultraviolet LED (14), and the inner wall of the second ultraviolet communication transceiver shell (157) is fixedly connected with a second voltage converter (16), a second digital signal processing unit (17), a second ultraviolet LED driver (18) and a second rechargeable battery (19).

6. The skyward-looking ultraviolet line-of-sight communication system of claim 3, wherein, The first digital signal processing unit (7) is bidirectionally connected with a flight controller (11) of the unmanned aerial vehicle through a first flexible lead (10), the first flexible lead (10) transmits a digital state signal output by the flight controller (11), and the first flexible lead (10) transmits a digital control signal output by the first digital signal processing unit (7), the output end of the first digital signal processing unit (7) is connected with the input end of the first ultraviolet LED driver (6), the input end of the first digital signal processing unit (7) is connected with the output end of the first ultraviolet light detector (3), the first digital signal processing unit (7) is bidirectionally connected with the first zoom camera (4), and the output end of the first ultraviolet LED driver (6) is connected with the input end of the first ultraviolet LED (5).

7. The skywave over-the-horizon communication system of claim 5 wherein, The second digital signal processing unit (17) is bidirectionally connected with a digital signal processor (36) of the unmanned vehicle through a second flexible lead (38), the second flexible lead (38) transmits a digital control signal output by the digital signal processor (36) of the unmanned vehicle, and the second flexible lead (38) transmits a digital state signal output by the second digital signal processing unit (17), the output end of the second digital signal processing unit (17) is connected with the input end of the second ultraviolet LED driver (18), the input end of the second digital signal processing unit (17) is connected with the output end of the second ultraviolet light detector (12), the second digital signal processing unit (17) is bidirectionally connected with the second zoom camera (13), and the output end of the second ultraviolet LED driver (18) is connected with the input end of the second ultraviolet LED (14).

8. The skyward-looking ultraviolet line-of-sight communication system of claim 1, wherein, The inner surface of the bottom of the unmanned wheeled vehicle (32) is fixedly connected with the outer surfaces of a first speed reduction motor (28), a second speed reduction motor (29), a third speed reduction motor (30) and a fourth speed reduction motor (31), respectively, the first rotor (24) of the first speed reduction motor (28) is coaxially connected with the first unmanned vehicle wheel (20), the second rotor (25) of the second speed reduction motor (29) is coaxially connected with the second unmanned vehicle wheel (21), the third rotor (26) of the third speed reduction motor (30) is coaxially connected with the third unmanned vehicle wheel (22), and the fourth rotor (27) of the fourth speed reduction motor (31) is coaxially connected with the fourth unmanned vehicle wheel (23).

9. The skyward-looking ultraviolet line-of-sight communication system of claim 1, wherein, The first ultraviolet light detector (3) carried on the unmanned aerial vehicle (1) and the second ultraviolet light detector (12) carried on the unmanned wheeled vehicle (32) are ultraviolet light detectors for receiving solar blind ultraviolet band signals.

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