WO2021212373A1 - Procédé de transmission de données pour véhicule aérien sans pilote, puce, dispositif de commande, système de commande de vol, support de stockage et produit-programme informatique - Google Patents

Procédé de transmission de données pour véhicule aérien sans pilote, puce, dispositif de commande, système de commande de vol, support de stockage et produit-programme informatique Download PDF

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Publication number
WO2021212373A1
WO2021212373A1 PCT/CN2020/086184 CN2020086184W WO2021212373A1 WO 2021212373 A1 WO2021212373 A1 WO 2021212373A1 CN 2020086184 W CN2020086184 W CN 2020086184W WO 2021212373 A1 WO2021212373 A1 WO 2021212373A1
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WIPO (PCT)
Prior art keywords
communication link
gear
mcs
transmission bandwidth
unmanned aerial
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Application number
PCT/CN2020/086184
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English (en)
Chinese (zh)
Inventor
赵丹
王焱
张志鹏
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2020/086184 priority Critical patent/WO2021212373A1/fr
Priority to CN202080038975.7A priority patent/CN113892273A/zh
Publication of WO2021212373A1 publication Critical patent/WO2021212373A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • This application relates to the field of communication technology, and in particular to a data transmission method, chip, control device, flight control system, storage medium, and computer program product of an unmanned aerial vehicle.
  • the embodiments of the present application provide a data transmission method, chip, control device, flight control system, storage medium, and computer program product of an unmanned aerial vehicle.
  • an embodiment of the present application provides a data transmission method for an unmanned aerial vehicle, the method including:
  • Data transmission is performed according to the adjusted transmission bandwidth of the communication link.
  • an embodiment of the present application provides a chip, and the chip includes:
  • a processing module used to determine a working scene of the unmanned aerial vehicle, the working scene including a near-field scene and a far-field scene; adjusting the transmission bandwidth of the communication link according to the working scene;
  • the communication interface is used for data transmission according to the adjusted transmission bandwidth of the communication link.
  • an embodiment of the present application provides a control device, including:
  • a processor and a memory where the memory is used to store instructions
  • the processor implements the following operations when executing the storage instruction:
  • Data transmission is performed according to the adjusted transmission bandwidth of the communication link.
  • an embodiment of the present application provides a flight control system, including an unmanned aerial vehicle and a control device, and the unmanned aerial vehicle and the control device are in communication connection;
  • the control device is used to determine a working scene of an unmanned aerial vehicle, the working scene includes a near-field scene and a far-field scene; according to the working scene, the transmission bandwidth of the communication link is adjusted; according to the adjusted communication link The transmission bandwidth of the channel for data transmission;
  • the unmanned aerial vehicle is used to receive data transmitted by the control device.
  • an embodiment of the present application provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method described in the foregoing aspect.
  • embodiments of the present application provide a computer program product including instructions, which when the program runs on a computer, cause the computer to execute the method described in the foregoing aspect.
  • This application determines whether it is a near-field scene or a far-field scene by detecting the working scene of the unmanned aerial vehicle, and adjusts the transmission bandwidth of the communication link according to the working scene of the unmanned aerial vehicle, so that when data is transmitted according to the adjusted transmission bandwidth, Meet the different transmission performance requirements of the communication link of the unmanned aerial vehicle in different working scenarios.
  • the delay performance can be improved by adjusting the transmission bandwidth of the communication link, so that the transmission delay is small, and the speed and flexibility of communication between the UAV and the control device can be improved; for near-field scenarios, the communication link can be adjusted
  • the transmission bandwidth of the road improves the connection performance and can keep the connection uninterrupted to ensure the reliability of the transmission.
  • Fig. 1 is a schematic structural diagram of a flight control system of an unmanned aerial vehicle according to an exemplary embodiment.
  • Fig. 2 is an application scenario diagram of an unmanned aerial vehicle flight control system shown in an exemplary embodiment.
  • Fig. 3 is a schematic flowchart of a data transmission method for an unmanned aerial vehicle according to an exemplary embodiment.
  • Fig. 4 is a schematic flowchart of a data transmission method for an unmanned aerial vehicle according to an exemplary embodiment.
  • Fig. 5 is a structural block diagram of a chip shown in an exemplary embodiment.
  • Fig. 6 is a structural block diagram of a control device shown in an exemplary embodiment.
  • Fig. 7 is a structural block diagram of a remote control shown in an exemplary embodiment.
  • Fig. 1 is a schematic structural diagram of a flight control system of an unmanned aerial vehicle according to an exemplary embodiment of the application
  • Fig. 2 is an application scene diagram of a flight control system of an unmanned aerial vehicle according to an exemplary embodiment.
  • the flight control system 10 of the unmanned aerial vehicle includes an unmanned aerial vehicle 110 and a control device 120, and the unmanned aerial vehicle 110 is communicatively connected with the control device 120 to realize real-time interaction.
  • the communication link between the unmanned aerial vehicle and the control equipment is a two-way link.
  • the unmanned aerial vehicle's communication link includes an uplink control link and a downlink transmission link.
  • the uplink control link is mainly used to control the sending and receiving of flight control instructions from the equipment to the unmanned aerial vehicle.
  • the flight control instructions include instructions to control the unmanned aerial vehicle to take off, fly in the air, perform missions, and return to the field;
  • the downlink transmission link is mainly used It is used to send and receive image data, telemetry data, etc. from unmanned aerial vehicles to control equipment.
  • unmanned aerial vehicle data transmission method provided in this application can be applied to the uplink control link and the downlink transmission link.
  • Fig. 3 is a schematic flowchart of a data transmission method for an unmanned aerial vehicle according to an exemplary embodiment of the application. As shown in Figure 3, the data transmission method of the UAV can be applied to control equipment, including 301 to 303:
  • 301 Determine a working scene of the unmanned aerial vehicle, where the working scene includes a near-field scene and a far-field scene.
  • Near field and far field are originally related concepts of electromagnetic field.
  • the signal sent by the transmitter through the antenna will generate electromagnetic field.
  • the characteristic change of electromagnetic field is related to the distance of the antenna.
  • the variable electromagnetic field can be divided into near field and far field. Among them, close to the antenna The area can be called the near field, and the area farther from the antenna can be called the far field.
  • This embodiment classifies the working scenes of the unmanned aerial vehicle, and the working scenes of the unmanned aerial vehicle can be divided into near-field scenes and far-field scenes.
  • the near-field scene and the far-field scene can be distinguished by the following parameters: the signal-to-noise ratio of the communication link, the distance between the UAV and the control device, the transmission power and the reception power of the communication link, etc., can be based on any one of the above These parameters can be used to determine the working scene of the unmanned aerial vehicle, and the above multiple parameters can also be combined to determine the working scene of the unmanned aerial vehicle.
  • the operating scenario of the UAV can be determined by detecting the signal-to-noise ratio of the communication link.
  • the signal-to-noise ratio is greater than the set signal-to-noise ratio threshold, it can be determined that the working scene of the UAV is a near-field scene; if the signal-to-noise ratio is not greater than the set signal-to-noise ratio threshold, it can be determined that there is no The working scene of the human aircraft is a far-field scene.
  • the above-mentioned set signal-to-noise ratio threshold can be obtained through empirical values.
  • the distance between the unmanned aerial vehicle and the control device to determine the working scene of the unmanned aerial vehicle when the distance between the unmanned aerial vehicle and the control device is less than the set distance threshold, it can be determined that the working scene of the unmanned aerial vehicle is close Field scene: When the distance between the unmanned aerial vehicle and the control device is not less than the set distance threshold, it can be determined that the working scene of the unmanned aerial vehicle is a far-field scene.
  • the above-mentioned set distance threshold can be obtained through empirical values.
  • the global positioning system may be used to obtain the distance between the unmanned aerial vehicle and the control device.
  • an assisted global positioning system Assisted Global Positioning System, AGPS
  • AGPS assisted Global Positioning System
  • GPS and AGPS may also be combined to obtain the distance between the unmanned aerial vehicle and the control device.
  • the distance between the unmanned aerial vehicle and the control device can also be obtained by using a laser ranging sensor, a lidar, or the like. In addition to the above-mentioned embodiments, it may also be other embodiments that can measure the distance between the unmanned aerial vehicle and the control device, which is not specifically limited in this application.
  • this specification mainly takes the uplink control link of the unmanned aerial vehicle as an example to describe in detail the data transmission method of the aforementioned unmanned aerial vehicle.
  • the transmission performance of the uplink control link of the unmanned aerial vehicles may have different requirements.
  • the near-field scene is more sensitive to the data transmission delay than the far-field scene, that is, in the near-field scene, it is expected that the delay of the uplink control link transmitting flight control instructions is as small as possible; while the far-field scene is more sensitive to the data transmission delay.
  • the transmission bandwidth of the uplink control link is adjusted for the UAV in different working scenarios to improve the transmission performance requirements corresponding to the working scenarios.
  • the transmission bandwidth of the communication link when the working scene is a near-field scene, reducing the transmission bandwidth of the uplink control link can increase the transmission power and improve the signal-to-noise ratio, so the uplink can be improved. Control the transmission delay performance of the link; when the working scene is a far-field scene, increasing the transmission bandwidth of the uplink control link can reduce the signal-to-noise ratio to improve the receiving performance of the uplink control link, Maintain the transmission of the uplink control link to ensure the reliability of the transmission.
  • the transmission bandwidth of the communication link is adjusted according to the working scene of the unmanned aerial vehicle, so that data transmission is performed according to the adjusted transmission bandwidth.
  • the delay performance can be improved by adjusting the transmission bandwidth of the communication link, so that the transmission delay is small, and the speed and flexibility of communication between the UAV and the control device can be improved; for near-field scenarios, the communication link can be adjusted
  • the transmission bandwidth of the road improves the connection performance and can keep the connection uninterrupted to ensure the reliability of the transmission.
  • the uplink control link of an unmanned aerial vehicle Take the uplink control link of an unmanned aerial vehicle as an example.
  • the transmission bandwidth of the uplink control link can be adjusted to improve the delay performance, so that the transmission delay is small, thereby improving the unmanned aerial vehicle.
  • the sensitivity of aircraft control when it is detected that the working scene of the unmanned aerial vehicle is a far-field scene, the connection performance can be improved by adjusting the transmission bandwidth of the uplink control link, and the connection can be kept uninterrupted, and the flight control command can be effectively received, thereby ensuring Reliability of transmission.
  • the control device may adjust the transmission bandwidth based on the working scenario of the unmanned aerial vehicle for the first time after the unmanned aerial vehicle is started.
  • the transmission bandwidth before adjustment may be a transmission bandwidth set by default.
  • the control device transmits flight control commands to the unmanned aerial vehicle based on the transmission bandwidth of the default setting.
  • the transmission bandwidth of the default setting can be a transmission bandwidth based on the criticality of the near-field scene and the far-field scene. Transmission bandwidth.
  • the transmission bandwidth set by default may also be related to the parameters that determine the working scenario. For example, it may be the applicable transmission bandwidth corresponding to the above-mentioned set signal-to-noise ratio threshold; for another example, it may be the above-mentioned set distance threshold. Transmission bandwidth.
  • the control device may adjust the transmission bandwidth again based on the working scenario of the unmanned aerial vehicle after adjusting the transmission bandwidth.
  • the control device can obtain specific values of parameters after determining the working scenario of the unmanned aerial vehicle, such as the signal-to-noise ratio, the distance between the unmanned aerial vehicle and the control device, the transmission power of the communication link, The specific value of received power, etc., determines the corresponding transmission bandwidth that needs to be adjusted. For example, you can set the above parameters to be in different numerical ranges, corresponding to different transmission bandwidths.
  • the control device can execute the steps 301 to 303 of the above-mentioned embodiment in real time to ensure the control of the unmanned aerial vehicle.
  • the control device may also periodically execute 301 to 303 of the foregoing embodiment.
  • the control device may also execute 301 to 303 of the foregoing embodiment after receiving an operation instruction of the user.
  • the communication may be adjusted based on the adjusted transmission bandwidth.
  • Link modulation and coding strategy MCS gear Link modulation and coding strategy
  • Modulation and Coding Scheme configures different transmission rates according to different transmission bandwidth, signal-to-noise ratio and other parameters, and the MCS gear as an index value corresponds to the transmission rate under a set of parameters.
  • the transmission rate of data transmission can be adjusted by adjusting the MCS gear.
  • the transmission bandwidth of the communication link corresponds to the MCS gear, and the smaller the transmission bandwidth, the higher the MCS gear.
  • the MCS gear of the current communication link is correspondingly adjusted to the MCS gear corresponding to the adjusted transmission bandwidth.
  • the correspondence between the transmission bandwidth of the communication link and the MCS gear can be stored in a data structure such as a look-up table.
  • the look-up table can be stored in the local storage space of the control device, or stored in a server or cloud storage center.
  • the control device passes Request access to a server or cloud storage center to obtain a look-up table of the correspondence between the transmission bandwidth of the communication link and the MCS gear.
  • the transmission bandwidth of the communication link corresponds to the signal-to-noise ratio and the MCS gear of the communication link.
  • the adjusting the modulation and coding strategy MCS gear of the communication link based on the adjusted transmission bandwidth may specifically include:
  • the signal-to-noise ratio of the uplink control link changes accordingly.
  • the maximum MCS gear that satisfies the normal operation of the current uplink control link can be determined.
  • the condition that the channel can work normally, that is, the maximum packet error rate that can be tolerated when the current uplink control link is working normally can be guaranteed. Adjust the current MCS gear to the corresponding maximum MCS gear so that the transmission rate of the uplink control link under the signal-to-noise ratio is adjusted to the best.
  • the transmission bandwidth is reduced, so the signal-to-noise ratio increases, and the maximum MCS gear corresponding to the signal-to-noise ratio increases.
  • the current MCS gear can be increased to make the transmission rate Increase, improve the delay performance of the uplink control link, reduce the transmission delay, and improve the sensitivity of UAV control.
  • the transmission bandwidth is increased, and the signal-to-noise ratio is reduced, and the maximum MCS gear corresponding to the signal-to-noise ratio is reduced.
  • the current MCS gear can be reduced, although the transmission The rate is reduced and the transmission delay is increased, but the connection performance of the uplink control link is improved.
  • the connection can be kept uninterrupted under a small signal-to-noise ratio, and the flight control command can be effectively received to ensure the reliability of transmission.
  • the MCS gear in addition to adjusting the transmission rate, can also adjust the modulation mode accordingly.
  • the communication link may be adjusted based on the adjusted MCS gear.
  • the number of retransmissions In a far-field scenario, multiple retransmissions of data can ensure reliable data transmission. In near-field scenarios, reducing the number of retransmissions can reduce transmission delay.
  • the adjusting the number of retransmissions of the communication link based on the adjusted MCS gear may specifically include:
  • the MCS gear also corresponds to the number of retransmissions, or in other words, the MCS gear has a corresponding relationship with the number of retransmissions. It can be that one MCS gear corresponds to a reference value of the number of retransmissions, or one MCS gear range corresponds to a reference value of the number of retransmissions.
  • the correspondence between the MCS gear and the number of retransmissions is negatively correlated.
  • the MCS gear increases and the number of retransmissions decreases, thereby improving the delay performance of the uplink control link, reducing the transmission delay, and improving the sensitivity of the UAV control.
  • the number of retransmissions may also be zero, that is, no retransmission is required.
  • the MCS gear is reduced and the number of retransmissions is increased, which improves the connection performance of the uplink control link. The connection can be kept uninterrupted under a small signal-to-noise ratio, and the flight can be effectively received. Control instructions to ensure the reliability of transmission.
  • the correspondence between the MCS gear and the number of retransmissions is represented by a look-up table or a piecewise function.
  • the look-up table or segmentation function of the corresponding relationship can be stored in the local storage space of the control device, or stored in a server or cloud storage center.
  • the control device obtains the MCS gear position and the number of retransmissions by requesting to access the server or cloud storage center Correspondence lookup table or piecewise function.
  • FIG. 4 is a schematic flowchart of a data transmission method for an unmanned aerial vehicle according to an exemplary embodiment of the application. As shown in Figure 4, the method includes 401 to 412:
  • a flight control command is transmitted to the UAV to continue to control the UAV flight detection.
  • a flight control command is transmitted to the unmanned aerial vehicle to continue to control the unmanned aerial vehicle flight detection.
  • the control device is used to control the aircraft for fire detection, and the default transmission bandwidth can be used for data transmission when it is started.
  • the control device can detect the operation of the unmanned aerial vehicle after a set period of time or after receiving a user operation instruction. Scenarios, based on the working scenario, the main transmission performance requirements of the current uplink control link can be determined. If the UAV’s working scenario is a near-field scenario, reduce the transmission bandwidth, increase the MCS gear, and reduce the number of retransmissions.
  • the configuration parameters such as the transmission bandwidth, the MCS gear position, and the number of retransmissions can also be adjusted through the data transmission method of the unmanned aerial vehicle of any of the above embodiments.
  • the difference is that because the downlink transmission link is mainly the communication link for the UAV to return image data and telemetry data to the control equipment, these data have specific effects on the transmission bandwidth, MCS gear and the number of retransmissions relative to the flight control command.
  • the configuration requirements are different, and the configuration of the above parameters can be modified according to actual requirements.
  • Fig. 5 is a structural block diagram of a chip shown in an exemplary embodiment of the application. As shown in FIG. 5, the chip 50 includes: a processing module 510 and a communication interface 520, where:
  • the processing module 510 is configured to determine a working scene of the unmanned aerial vehicle, where the working scene includes a near-field scene and a far-field scene; adjust the transmission bandwidth of the communication link according to the working scene;
  • the communication interface 520 is configured to perform data transmission according to the adjusted transmission bandwidth of the communication link. Such as sending flight control commands based on the adjusted transmission bandwidth.
  • the processing module used to adjust the transmission bandwidth of the communication link includes:
  • the transmission bandwidth of the communication link is increased.
  • the working scenario of the unmanned aerial vehicle is determined based on at least one of the following parameters: the signal-to-noise ratio of the communication link, and the distance between the unmanned aerial vehicle and the control device.
  • the processing module is further configured to adjust the modulation and coding strategy MCS gear of the communication link based on the adjusted transmission bandwidth after adjusting the transmission bandwidth of the communication link .
  • the transmission bandwidth of the communication link corresponds to the MCS gear.
  • when the processing module is configured to adjust the modulation and coding strategy MCS gear of the communication link based on the adjusted transmission bandwidth includes:
  • the processing module is further configured to adjust the number of retransmissions of the communication link based on the adjusted MCS gear after adjusting the MCS gear.
  • the processing module configured to adjust the number of retransmissions of the communication link based on the adjusted MCS gear includes:
  • the corresponding relationship is represented by a lookup table or a piecewise function.
  • the communication link is an uplink control link of an unmanned aerial vehicle.
  • This application also provides a control device suitable for executing the data transmission method of the unmanned aerial vehicle described in any of the above embodiments.
  • the control device is used to establish a communication connection with the unmanned aerial vehicle and can perform data transmission.
  • the control device can send flight control instructions to the unmanned aerial vehicle so that the unmanned aerial vehicle can perform corresponding tasks in response to the flight control instruction; the control device can also receive related data returned by the unmanned aerial vehicle, such as image data, telemetry data, and so on.
  • the control device can be a remote control dedicated to controlling an unmanned aerial vehicle, or a terminal device that communicates with the unmanned aerial vehicle, such as a mobile phone, a computer, a tablet computer, etc.
  • FIG. 6 is a structural block diagram of a control device shown in an exemplary embodiment of the application.
  • the control device 60 includes a processor 610 and a memory 620, where the memory 620 is used to store instructions, and the processor 610 implements the following operations when executing the stored instructions:
  • Data transmission is performed according to the adjusted transmission bandwidth of the communication link.
  • FIG. 7 is a structural block diagram of a remote controller shown in an exemplary embodiment of this application.
  • the remote control 70 may also include a remote control component 730 for triggering flight control instructions, a wireless communication module 740 for establishing a connection with an unmanned aerial vehicle, and display control.
  • the terminal device may include a touch screen for receiving a touch signal for triggering flight control instructions, a touch screen for displaying a control interactive interface and returning image or video data, a wireless communication module for establishing a connection with an unmanned aerial vehicle, etc. Wait.
  • the adjusting the transmission bandwidth of the communication link implemented when the processor executes the storage instruction includes:
  • the transmission bandwidth of the communication link is increased.
  • the working scenario of the unmanned aerial vehicle is determined based on at least one of the following parameters: the signal-to-noise ratio of the communication link, and the distance between the unmanned aerial vehicle and the control device.
  • the processor further implements the following operations when executing the storage instruction:
  • the modulation and coding strategy MCS gear of the communication link is adjusted based on the adjusted transmission bandwidth.
  • the transmission bandwidth of the communication link corresponds to the MCS gear.
  • the adjustment of the modulation and coding strategy MCS gear of the communication link based on the adjusted transmission bandwidth realized when the processor executes the storage instruction includes:
  • the processor further implements the following operations when executing the storage instruction:
  • the number of retransmissions of the communication link is adjusted based on the adjusted MCS gear position.
  • the adjustment of the number of retransmissions of the communication link based on the adjusted MCS gear position realized when the processor executes the storage instruction includes:
  • the corresponding relationship is represented by a lookup table or a piecewise function.
  • the communication link is an uplink control link of an unmanned aerial vehicle.
  • FIG. 1 shows a structural block diagram of a flight control system.
  • the flight control system includes an unmanned aerial vehicle and a control device.
  • the unmanned aerial vehicle The machine is in communication connection with the control device, wherein:
  • the control device is used to determine a working scene of the UAV, the working scene includes a near-field scene and a far-field scene; according to the working scene, the transmission bandwidth of the communication link is adjusted; according to the adjusted The transmission bandwidth of the communication link performs data transmission to the unmanned aerial vehicle;
  • the unmanned aerial vehicle is used to receive data transmitted by the control device.
  • control device used for adjusting the transmission bandwidth of the communication link includes:
  • the transmission bandwidth of the communication link is increased.
  • the working scenario of the unmanned aerial vehicle is determined based on at least one of the following parameters: the signal-to-noise ratio of the communication link, and the distance between the unmanned aerial vehicle and the control device.
  • control device is further configured to adjust the modulation and coding strategy MCS gear of the communication link based on the adjusted transmission bandwidth after adjusting the transmission bandwidth of the communication link .
  • the transmission bandwidth of the communication link corresponds to the MCS gear.
  • control device configured to adjust the modulation and coding strategy MCS gear of the communication link based on the adjusted transmission bandwidth includes:
  • control device is further configured to adjust the number of retransmissions of the communication link based on the adjusted MCS gear after adjusting the MCS gear.
  • control device configured to adjust the number of retransmissions of the communication link based on the adjusted MCS gear includes:
  • the corresponding relationship is represented by a lookup table or a piecewise function.
  • the communication link is an uplink control link of an unmanned aerial vehicle.
  • This application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to perform the following operations:
  • the computer-readable storage medium runs on a computer, it can also cause the computer to execute the data transmission method of the unmanned aerial vehicle described in any of the foregoing embodiments.
  • This application also provides a computer program product including instructions, which when the program runs on a computer, causes the computer to perform the following operations:
  • the embodiments of the present application may adopt the form of a computer program product implemented on one or more readable media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing program codes.
  • Computer-usable readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology.
  • the information can be computer-readable instructions, data structures, program modules, or other data.
  • Examples of computer readable media include, but are not limited to: phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only Memory (ROM), erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices.
  • PRAM phase change memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • RAM random access memory
  • ROM read-only Memory
  • EEPROM erasable programmable read-only memory
  • flash memory or other memory technology
  • CD-ROM compact disc
  • DVD digital versatile disc
  • Magnetic cassettes magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices.
  • the relevant part can refer to the part of the description of the method embodiment.
  • the device embodiments described above are merely illustrative.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units.
  • Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.
  • first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as second information, and similarly, the second information may also be referred to as first information.
  • word “if” as used herein can be interpreted as "when” or “when” or "in response to determination”.

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Abstract

L'invention concerne un procédé de transmission de données pour un véhicule aérien sans pilote, ainsi qu'une puce, un dispositif de commande, un système de commande de vol, un support de stockage et un produit-programme informatique. Le procédé consiste à : déterminer une scène de travail du véhicule aérien sans pilote, la scène de travail comprenant une scène en champ proche et une scène en champ lointain ; ajuster la bande passante de transmission d'une liaison de communication en fonction de la scène de travail ; et transmettre des données en fonction de la bande passante de transmission ajustée de la liaison de communication. Il est déterminé par détection si la scène de travail actuelle du véhicule aérien sans pilote est la scène en champ proche ou la scène en champ lointain, et la bande passante de transmission de la liaison de communication est ajustée en fonction de la scène de travail du véhicule aérien sans pilote afin de répondre aux différentes exigences de performances de transmission sur la liaison de communication du véhicule aérien sans pilote dans différentes scènes de travail lorsque les données sont transmises en fonction de la bande passante de transmission ajustée, ce qui permet d'effectuer un ajustement adaptatif de la transmission de communication entre le véhicule aérien sans pilote et le dispositif de commande.
PCT/CN2020/086184 2020-04-22 2020-04-22 Procédé de transmission de données pour véhicule aérien sans pilote, puce, dispositif de commande, système de commande de vol, support de stockage et produit-programme informatique WO2021212373A1 (fr)

Priority Applications (2)

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PCT/CN2020/086184 WO2021212373A1 (fr) 2020-04-22 2020-04-22 Procédé de transmission de données pour véhicule aérien sans pilote, puce, dispositif de commande, système de commande de vol, support de stockage et produit-programme informatique
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