CN114938082A - Wireless laser energy transmission system - Google Patents
Wireless laser energy transmission system Download PDFInfo
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- CN114938082A CN114938082A CN202210681380.4A CN202210681380A CN114938082A CN 114938082 A CN114938082 A CN 114938082A CN 202210681380 A CN202210681380 A CN 202210681380A CN 114938082 A CN114938082 A CN 114938082A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000004146 energy storage Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013079 data visualisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229910002027 silica gel Inorganic materials 0.000 description 1
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- 230000001502 supplementing effect Effects 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/30—Circuit arrangements or systems for wireless supply or distribution of electric power using light, e.g. lasers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/10—Air crafts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a wireless laser energy transmission system, and relates to the technical field of unmanned aerial vehicles. The system comprises a transmitting module, a receiving module and a data transmission module; the transmitting module is used for transmitting laser of the laser to the receiving module; the receiving module is used for converting the light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emitting module; the data transmission module is used for detecting the information of the receiving module and transmitting the information to the outside; the transmitting module consists of a laser, a laser transmitting device and a transmitting holder; the laser is used for performing electro-optical conversion and transmitting the converted laser to the interior of the laser emitting device. Through a series of improvements, the system has the advantages of strong directivity and energy concentration when in use, and can realize longer-distance power supply with smaller transmitting power in a spatial field.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a wireless laser energy transmission system.
Background
Unmanned aerial vehicles have wide application in various fields, wherein the small unmanned aerial vehicles are mostly driven by batteries, but the energy density of a storage battery is far lower than that of fuel oil, and the range and the dead time of the electric unmanned aerial vehicle are seriously hindered; in order to solve the problem of limitation of the cruising ability of the unmanned aerial vehicle, a long-distance energy transfer technology is developed;
the traditional contact type power supply mode transmits electric energy through a metal wire, but the mode has poor mobility flexibility, limited application scenes and higher potential safety hazard; therefore, wireless power transmission technologies are receiving more and more attention, and electromagnetic induction type, electromagnetic resonance type and laser type are common. The electromagnetic induction type power can reach higher power, but the receiving and transmitting coil needs to be accurately aligned, the electromagnetic resonance type mobility is good, but the transmission power is lower; therefore, a wireless laser energy transmission system is designed.
Disclosure of Invention
The present invention is directed to a wireless laser energy transmission system to solve the above problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a wireless laser energy transmission system, which comprises a transmitting module, a receiving module and a data transmission module;
the transmitting module is used for transmitting laser of the laser to the receiving module;
the receiving module is used for converting the light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emitting module;
and the data transmission module is used for detecting the information of the receiving module and transmitting the information to the outside.
Furthermore, the transmitting module consists of a laser, a laser transmitting device and a transmitting holder;
the laser is used for performing electro-optical conversion and transmitting the converted laser to the interior of the laser emitting device;
the laser emitting device is used for carrying out alignment emission on the laser transmitted by the laser;
the transmitting cloud deck is used for shaping, concentrating and conveying laser inside the laser transmitting device into the laser transmitting device.
Further, the laser is a semiconductor laser for coupling output of optical fibers.
Furthermore, a photoelectric conversion module and a constant-current constant-voltage energy storage module are arranged in the receiving module;
the photoelectric conversion module is used for converting light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emission module;
the constant-current and constant-voltage energy storage module is used for storing the constant-current and constant-voltage electric energy converted by the photoelectric conversion module.
Further, the data transmission module is an ESP8266 module.
Furthermore, the system also comprises a battery monitoring module which is used for detecting the information of the battery in real time.
The invention has the following beneficial effects:
the invention has the advantages of strong directivity and energy concentration when the system is used through a series of improvements, and can realize long-distance power supply with smaller transmitting power in a space field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is a wireless laser energy transmission system.
The system comprises a transmitting module, a receiving module and a data transmission module;
the transmitting module is used for aligning laser of the laser to the receiving module for transmitting;
preferably, the transmitting module consists of a laser, a laser transmitting device and a transmitting holder;
the laser is used for performing electro-optical conversion and transmitting the converted laser into the laser emitting device, and has the advantages of small volume, light weight and low cost;
the laser can emit laser with fixed wavelength of 793nm, the laser power is adjustable within 0-40W, and the adjustable precision is 0.4W. Meanwhile, in order to reduce the interference of external uncertain factors, the laser transmitter is fixed to an indoor environment.
Specifically, the laser is a semiconductor laser for coupling and outputting optical fibers;
the laser emitting device is used for carrying out alignment emission on the laser transmitted by the laser;
the emission holder is used for shaping, concentrating and conveying laser inside the laser emission device into the laser emission device;
the receiving module is used for converting light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emitting module;
the receiving module is connected with the transmitting module through a spatial link, so that laser emitted by the transmitting module can be transmitted to the inside of the receiving module;
in this embodiment, the receiving module selects a solar silica gel plate with a size of 110 × 110mm as a photoelectric conversion device, the device can generate a rated voltage of 12V at most and a rated current of 150mA, and the peak power of the device can reach 1.8W.
A photoelectric conversion module and a constant-current constant-voltage energy storage module are arranged in the receiving module;
the photoelectric conversion module is used for converting light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emission module;
the constant-current and constant-voltage energy storage module is used for storing the constant-current and constant-voltage electric energy converted by the photoelectric conversion module;
the data transmission module is used for detecting the information of the receiving module, transmitting the information to the outside and monitoring the state information of the battery of the unmanned aerial vehicle, including temperature and voltage information;
an ESP8266 module is selected as a data transmission module, a 16-bit simplification mode is adopted, main frequencies support 80MHz and 160MHz, RTOS is supported, Wi-FiMAC/BB/RF/PA/LNA is integrated, and an on-board antenna is arranged. And the information is transmitted to a mobile phone end by supporting a standard IEEE802.11b/g/n protocol and a complete TCP/IP protocol stack. After the charging is completed, stop information is sent, and the transmitting module turns off the laser.
Specifically, the system further comprises a battery monitoring module, wherein the battery monitoring module is used for detecting information of a battery in the unmanned aerial vehicle in real time, when the voltage of the battery is too low, a signal for supplementing a power supply is sent out, and the transmitting module can receive the information and continue to start laser energy transmission; and simultaneously, after charging is finished, sending feedback to the transmitting module, closing the laser and finishing transmission.
When the unmanned aerial vehicle is used, the corresponding unmanned aerial vehicle is firstly made to ascend, and the fixed-point state is kept. Then, laser emission device transmission laser among the ground terminal emission module aims at the photoelectric converter that unmanned aerial vehicle carried on. The photoelectric converter converts energy and charges a power supply. The charging data can be transmitted to the display device through the data transmission module for data visualization, when the battery monitoring module detects that the battery voltage is too low, a signal which needs to be supplemented with a power supply is sent out, the transmitting device can receive information and continue to start laser energy transmission, and the energy transmission distance can reach more than 10 m. When charging, a rechargeable battery with rated voltage of 12V and battery capacity of 5000mAh is used as an energy storage device. When the system charges the battery, the charging current can reach about 0.6A, and the time for completing the charging task of the battery is about 1 hour;
the system utilizes laser as a carrier to transmit wireless electric energy under a remote condition, and the laser energy transmission technology has the advantages of high energy density, good directivity, long transmission distance, no pollution and the like, and can provide a new energy transmission mode for mobile equipment such as sensors, aircrafts, spacecrafts, space stations and the like. Utilize laser charging to convert light energy into electric energy, realize the remote power supply under the unmanned aerial vehicle flight state, can guarantee that unmanned aerial vehicle long-time work just need not return a voyage. The method has wide application prospect in the fields of terrain detection, electronic interference, battlefield evaluation, disaster detection, meteorological detection, high-altitude detection, forest fire protection, aerial photography and the like;
the system can achieve the following effects when in use:
1. the laser wireless energy transmission is realized: the charging mode of the rechargeable battery in the traditional wired mode is broken through, and certain promotion effects are achieved on increasing the cruising ability of the unmanned aerial vehicle and improving the working efficiency of the unmanned aerial vehicle;
2. environmental protection and no pollution: the wireless laser energy transfer device has the characteristic of pollution-free environmental protection, and the load weight of the workbench can be reduced by using the device, so that unnecessary energy expenditure can be saved.
3. Automatic alignment is realized, and in the working state of the unmanned aerial vehicle, automatic alignment and energy transfer are performed, so that energy waste is avoided;
after the unmanned aerial vehicle is successfully connected with a ground station, the ground station acquires the orientation of a photovoltaic cell panel through a camera, then calculates angle information and controls a transmitting holder to rotate a laser transmitter to the orientation of the unmanned aerial vehicle, and a system coarse adjustment stage is completed; in the fine adjustment stage of the system, the precise alignment of the laser is realized by adopting a high-precision visual axis stabilizing technology; the camera captures the position of the photovoltaic cell panel in real time, the photovoltaic cell panel is placed in the center of the screen, and the motor is adjusted in time to ensure stable and efficient energy transmission of laser.
4. And (3) reducing energy loss: the wireless laser energy transmission also avoids the heat loss caused by resistance in the traditional wire energy transmission, thereby improving the photoelectric conversion efficiency to a certain extent;
5. the laser alignment is accurate: the precise alignment between the wireless laser and the photoelectric converter is realized, so that the laser energy transmission can work with the maximum energy transmission efficiency.
6. The intelligent feedback mechanism is provided, and a signal is sent to close the laser transmitter after charging is finished; when the battery power is too low, the signal of the supplementary power supply can be sent out again.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A wireless laser energy transfer system is characterized in that: the system comprises a transmitting module, a receiving module and a data transmission module;
the transmitting module is used for transmitting laser of the laser to the receiving module;
the receiving module is used for converting light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emitting module;
and the data transmission module is used for detecting the information of the receiving module and transmitting the information to the outside.
2. The wireless laser energy transmission system according to claim 1, wherein the transmitting module is composed of a laser, a laser transmitting device and a transmitting holder;
the laser is used for performing electro-optical conversion and transmitting the converted laser to the interior of the laser emitting device;
the laser emitting device is used for carrying out alignment emission on the laser transmitted by the laser;
the transmitting cloud deck is used for shaping, concentrating and conveying laser inside the laser transmitting device into the laser transmitting device.
3. A wireless laser energy transmission system according to claim 2, wherein the laser is a fiber coupled output semiconductor laser.
4. The wireless laser energy transmission system according to claim 1, wherein a photoelectric conversion module and a constant-current constant-voltage energy storage module are arranged inside the receiving module;
the photoelectric conversion module is used for converting light energy into electric energy with constant current and constant voltage after receiving the laser emitted by the emission module;
the constant-current and constant-voltage energy storage module is used for storing the constant-current and constant-voltage electric energy converted by the photoelectric conversion module.
5. The wireless laser energy transmission system according to claim 4, wherein the data transmission module is an ESP8266 module.
6. The wireless laser energy transmission system according to claim 1, further comprising a battery monitoring module for detecting information of the battery in real time.
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CN202210681380.4A CN114938082A (en) | 2022-06-16 | 2022-06-16 | Wireless laser energy transmission system |
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CN202210681380.4A CN114938082A (en) | 2022-06-16 | 2022-06-16 | Wireless laser energy transmission system |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104638779A (en) * | 2015-03-10 | 2015-05-20 | 金陵科技学院 | Wireless laser charging equipment for unmanned aerial vehicle and charging system of wireless laser charging equipment |
US20160344226A1 (en) * | 2010-07-09 | 2016-11-24 | Industrial Technology Research Institute | Apparatus for transmission of wireless energy |
CN111319786A (en) * | 2020-04-01 | 2020-06-23 | 中国人民解放军陆军工程大学 | Mooring type unmanned aerial vehicle power supply system and power supply method thereof |
CN112202226A (en) * | 2020-10-10 | 2021-01-08 | 军事科学院***工程研究院军事新能源技术研究所 | Long-distance wireless power supply device for unmanned aerial vehicle |
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- 2022-06-16 CN CN202210681380.4A patent/CN114938082A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160344226A1 (en) * | 2010-07-09 | 2016-11-24 | Industrial Technology Research Institute | Apparatus for transmission of wireless energy |
CN104638779A (en) * | 2015-03-10 | 2015-05-20 | 金陵科技学院 | Wireless laser charging equipment for unmanned aerial vehicle and charging system of wireless laser charging equipment |
CN111319786A (en) * | 2020-04-01 | 2020-06-23 | 中国人民解放军陆军工程大学 | Mooring type unmanned aerial vehicle power supply system and power supply method thereof |
CN112202226A (en) * | 2020-10-10 | 2021-01-08 | 军事科学院***工程研究院军事新能源技术研究所 | Long-distance wireless power supply device for unmanned aerial vehicle |
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Application publication date: 20220823 |