WO2019000269A1 - 一种信息处理方法、无人机及计算机可读存储介质 - Google Patents

一种信息处理方法、无人机及计算机可读存储介质 Download PDF

Info

Publication number
WO2019000269A1
WO2019000269A1 PCT/CN2017/090527 CN2017090527W WO2019000269A1 WO 2019000269 A1 WO2019000269 A1 WO 2019000269A1 CN 2017090527 W CN2017090527 W CN 2017090527W WO 2019000269 A1 WO2019000269 A1 WO 2019000269A1
Authority
WO
WIPO (PCT)
Prior art keywords
ground device
signal
drone
distance
preset
Prior art date
Application number
PCT/CN2017/090527
Other languages
English (en)
French (fr)
Inventor
高建南
龚明
王乃博
王晓东
饶雄斌
范伟
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.)
Filing date
Publication date
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 CN201780005162.6A priority Critical patent/CN108541357A/zh
Priority to PCT/CN2017/090527 priority patent/WO2019000269A1/zh
Publication of WO2019000269A1 publication Critical patent/WO2019000269A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/364Delay profiles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502Airborne stations
    • H04B7/18506Communications with or from aircraft, i.e. aeronautical mobile service

Definitions

  • the present application relates to the field of drone technology, and more particularly to an information processing method, a drone, and a computer readable storage medium.
  • drones have become more and more widely used. While bringing new experiences to consumers, drones also bring some potential risks to the society, including drones invading personal privacy and breaking into national military secrets. Ground, endangering passenger aircraft safety, etc. Therefore, it is necessary to limit the flight range of the drone.
  • the key to the limitation of the flight range of the drone is to limit the flight distance of the drone, and the calculation of the flight distance of the drone is the focus of research by those skilled in the art.
  • the present invention provides an information processing method, a drone, and a computer readable storage medium to overcome the problem that the flying distance of the UAV in the prior art is difficult to obtain.
  • the present invention provides the following technical solutions:
  • An information processing method applied to a drone including:
  • a drone that includes:
  • a first acquiring module configured to acquire a signal transmission time difference between the drone and the ground device
  • a second acquiring module configured to obtain a flight distance between the drone and the ground device according to the signal transmission time difference.
  • a drone that includes:
  • a processor configured to execute the program, the program is specifically configured to:
  • a computer readable storage medium having stored thereon a computer program, the computer program being The following steps are implemented when the processor executes:
  • the embodiment of the present invention provides an information processing method, which first acquires a signal transmission time difference between a drone and a ground device, and then obtains a time difference according to the signal transmission.
  • the flight distance between the drone and the ground equipment is far less than the distance between the drone and the satellite because the distance between the ground equipment and the drone is far less. Therefore, the signal of the ground equipment is not easily interfered. Or shielding, therefore, based on the signal transmission time difference between the ground equipment and the drone, the flight distance can be obtained more accurately and easily.
  • FIG. 1 is a flowchart of an information processing method according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of ⁇ t in the process of using time division duplexing for communication between a drone and a ground device;
  • FIG. 3 is a schematic diagram of ⁇ t in a process of using frequency division duplexing between a drone and a ground device;
  • FIG. 4 is a signaling diagram of an implementation manner of a method for calculating a signal transmission time difference according to an embodiment of the present disclosure
  • FIG. 5 is a signaling diagram of an implementation manner of a method for calculating a signal transmission time difference according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of an implementation manner of a flight restriction policy according to an embodiment of the present disclosure
  • FIG. 7 is a structural diagram of a drone provided by an embodiment of the present application.
  • FIG. 8 is an internal structural diagram of a drone according to an embodiment of the present application.
  • the drone can visit military areas and airports, break into private territories, cause military secret leaks or leak private information, and may also harm the safety of passenger aircraft.
  • drones rely on their own satellite positioning receivers to determine whether they are in military areas, airports, or private territories.
  • the satellite positioning receiver in the drone can obtain the positioning signals sent by the satellites to the drone, and the satellite positioning receiver can obtain the positioning signals of the satellites according to the positioning signals sent by the satellites to the drones.
  • the signal transmission time of the drone; the satellite positioning receiver obtains the distance between each satellite and the drone according to the corresponding signal transmission time of each satellite, and further calculates the location according to the distance between each satellite and the drone. position.
  • the communication link between the drone and the ground equipment is much more reliable and robust than the positioning signal is susceptible to interference or shielding.
  • FIG. 1 is a flowchart of an information processing method provided by an embodiment of the present application, where the information processing method includes:
  • Step S101 Acquire a signal transmission time difference between the UAV and the ground device.
  • Normal two-way communication can be performed between the drone and the ground equipment; the drone and the ground equipment can use the time division duplex TDD to perform two-way communication, or the frequency division duplex FDD method can be used for two-way communication.
  • the A device first transmits a signal sequence S i to the ground device, and the B device receives the signal sequence S i as the starting time, and delays the time ⁇ t to feed back the signal sequence R i to the A device.
  • the B device is a ground device; if the A device is a ground device, the B device is a drone.
  • the A device can use satellite positioning information to measure the distance to the B device during normal operation. When the satellite positioning information fails, the A device can measure the distance from the B device using the method shown in FIG. If the A device is a drone, the B device is a ground device; if the A device is a ground device, the B device is a drone.
  • the A device can measure the distance to the B device using the method illustrated in Figure 1 during normal operation.
  • the A device can use the satellite positioning information to measure the distance from the B device. If the A device is a drone, the B device is a ground device; if the A device is a ground device, the B device is a drone.
  • the drone can switch to the method shown in FIG. 1 in time after the satellite positioning information fails, so as to ensure that the distance between the drone and the ground device is continuously measured. Or, when the method shown in FIG. 1 fails due to a communication failure, it switches to the use of satellite positioning information in time to continue measuring the distance between the drone and the ground equipment.
  • Tx denotes a transmitting end
  • Rx denotes a receiving end. Therefore, the signal sequence S i transmitted by the A device is referred to as S i (Tx), the signal sequence S i received by the B device is referred to as S i (Rx); and the signal sequence R i fed back by the B device is referred to as R i (Tx), the signal sequence R i received by the A device is referred to as R i (Rx).
  • S i (Tx) and S i (Rx) are the same signal sequence; R i (Tx) and R i (Rx) are the same signal sequence.
  • FIG. 3 a schematic diagram of ⁇ t in the process of using frequency division duplexing between the drone and the ground equipment.
  • the A device first transmits a signal sequence S i to the ground device, and the B device receives the signal sequence S i as the starting time, and delays the time ⁇ t to feed back the signal sequence R i to the A device.
  • the B device is a ground device; if the A device is a ground device, the B device is a drone.
  • Tx denotes a transmitting end
  • Rx denotes a receiving end. Therefore, the signal sequence S i transmitted by the A device is referred to as S i (Tx), the signal sequence S i received by the B device is referred to as S i (Rx); and the signal sequence R i fed back by the B device is referred to as R i (Tx), the signal sequence R i received by the A device is referred to as R i (Rx).
  • S i (Tx) and S i (Rx) are the same signal sequence; R i (Tx) and R i (Rx) are the same signal sequence.
  • a set of S i (Tx) and R i (Tx) in FIG. 2 and FIG. 3 is one cycle, including: A device transmitting signal sequence S i (Tx) in one cycle; and A device receiving B device for a signal sequence S i (Tx) feedback signal sequence R i (Tx).
  • a device transmitting signal sequence S i (Tx) in one cycle and A device receiving B device for a signal sequence S i (Tx) feedback signal sequence R i (Tx).
  • receive R i (Tx) for example, to avoid the following situation
  • the A device sends S 1 (Tx), after receiving the S 1 Before (Tx) corresponds to R 1 (Tx), the A device has sent S 2 (Tx).
  • the sum of the transmission delay of the A device to the B device and the transmission delay of the B device to the A device shown in FIG. 2 and FIG. 3 is a transmission delay due to the distance between the UAV and the ground device. . If the distance between the A device and the B device has not changed, the transmission delay of the A device to the B device and the transmission delay of the B device to the A device should be equal; since the drone is always in flight, no one The distance between the machine and the ground equipment may change at all times. However, since the time from the transmission of the signal sequence S i (Tx) by the A device to the reception of the signal sequence R i (Rx) by the A device is short, it can be regarded as the transmission delay of the A device to the B device and the B device direction. The transmission delay of the A device is the same.
  • the signal transmission time difference in step S101 can be obtained by the transmission time of the signal sequence between the drone and the ground device.
  • the calculation formula of the transmission delay T i due to the distance between the drone and the ground device can be as follows:
  • the T i is the sum of the transmission delay of the A device to the B device and the transmission delay of the B device to the A device.
  • the signal transmission time difference in step S101 may include a transmission delay T i .
  • the period T for obtaining the flight distance between the drone and the ground device is greater than or equal to "the time when the A device transmits the signal sequence S i (Tx), and the time difference between the received B device for the signal sequence S i (Tx)".
  • the period T can satisfy the following conditions: Where D max represents the maximum flight distance between the drone and the ground equipment, and c is the speed of light.
  • Step S102 Obtain a flight distance between the UAV and the ground device according to the signal transmission time difference.
  • the formula for calculating the flight distance D can be as follows: Where c is the speed of light.
  • the flight distance D is approximately equivalent to the instantaneous physical distance between the drone and the ground equipment.
  • a signal transmission time difference between the UAV and the ground device is acquired, and then a flight distance between the UAV and the ground device is obtained according to the signal transmission time difference. Because the distance between the ground equipment and the drone is far less than the distance between the drone and the satellite, the signal of the ground equipment is not easily disturbed or shielded. Therefore, based on the ground equipment and the drone.
  • the signal transmission time difference makes it possible to obtain the flight distance more accurately and easily.
  • the first type is a signaling diagram of an implementation manner of a method for calculating a signal transmission time difference provided by an embodiment of the present application, where the method includes:
  • Step S401 transmitting a first signal UAV 11 to the ground equipment 12 (e.g., a signal sequence S i), and recording a first start time of a first transmitted signal (e.g., T i1).
  • a first signal UAV 11 e.g., a signal sequence S i
  • T i1 a first transmitted signal
  • Step S402 The ground device 12 feeds back the second signal (for example, the signal sequence R i ) to the drone 11 when the preset time (for example, ⁇ t) is delayed by the time when the first signal is received.
  • the preset time for example, ⁇ t
  • Step S403 The drone 11 receives the second signal and records a second starting time (for example, T i2 ) of receiving the second signal.
  • Step S404 The drone 11 is based on the first start time, the second start time, and the pre- The delay time is set to obtain a signal transmission time difference between the drone and the ground device.
  • the second method is a signaling diagram of an implementation manner of a method for calculating a signal transmission time difference provided by an embodiment of the present application, where the method includes:
  • Step S501 The ground device 12 transmits a first signal (for example, the signal sequence S i ) to the drone 11 and records a first start time (for example, T i1 ) at which the first signal is transmitted.
  • a first signal for example, the signal sequence S i
  • a first start time for example, T i1
  • Step S502 The drone 11 feeds back the second signal (for example, the signal sequence R i ) to the ground device 12 when the preset delay time (for example, ⁇ t) is delayed by the time when the first signal is received.
  • the preset delay time for example, ⁇ t
  • Step S503 The ground device 12 receives the second signal and records a second starting time (e.g., Ti2 ) of receiving the second signal.
  • a second starting time e.g., Ti2
  • Step S504 The ground device 12 obtains a signal transmission time difference between the UAV and the ground device according to the first starting time, the second starting time, and the preset delay time.
  • Step S505 The ground device 12 transmits a signal transmission time difference to the drone 11 .
  • the first control instruction includes: a control instruction for controlling a flight distance between the drone and the ground device to be less than the preset distance, and/or for prompting to shorten the drone Control instructions for the flight distance between the ground equipment.
  • the control command for controlling the flight distance between the drone and the ground device to be less than the preset distance may be to force the drone to descend, and/or to reduce the flight speed of the drone , and / or, control the drone to return.
  • control command for prompting to shorten the flight distance between the drone and the ground device may be to control the drone to be in the current position and cannot move, ie hover, and/or warn the unmanned person The aircraft returned.
  • One or more guard distances may be set for the drone, ie the preset distance may include one or more guard distances.
  • the control commands generated by the drone may be the same or different. The following describes the warning distances with a specific example.
  • FIG. 6 is a schematic diagram of an implementation manner of a flight restriction policy provided by an embodiment of the present application.
  • the position where the ground equipment is located is the point O of the center of the sphere shown in FIG. 6; the plane of the shadow is the horizontal plane. Since there are currently low garages, basements, and low-rise shopping malls, Figure 6 is spherical. It is assumed that the first preset distance is preset (the first set distance may be the radius D warning of the ball 1 in FIG.
  • the drone can fly anywhere in the ball 1; if the flight distance between the drone and the ground device is greater than or equal to the first preset distance (for example, the drone is in Figure 6
  • a control command prompting to shorten the flight distance between the drone and the ground device for example, a warning to return immediately, or a control command for the forced landing of the drone may be generated.
  • the flight continues, and when the flight distance of the drone is greater than or equal to the second preset distance (the second preset distance may be the radius D restrict of the ball 2 in FIG. 6), Assuming that the drone reaches the C position, generating a control command for controlling a flight distance between the drone and the ground device to be less than the second preset distance, such as forcing a drone to land, or No drone can move horizontally but cannot raise the drone; or, control the speed of the drone.
  • the second preset distance may be the radius D restrict of the ball 2 in FIG. 6
  • the user can resume control of the drone.
  • the drone If the drone satisfies D i ⁇ D warning during the descent, the user's control of the drone is restored, as in state D of FIG. If the drone falls during the descent, preferably, the drone will not be able to take off again, as in state E in Figure 6.
  • the drone moves from the A position to the B position, from the B position to the C position, and then from the C position to the D position; or directly from the C position to the ground E position.
  • the two preset distances that is, the first preset distance and the second preset distance are taken as an example.
  • the preset distance in the present application may include one or more guard distances, This is not limited.
  • the flight space of the drone is divided into at least two flights based on ground equipment. Space, when there is only one warning distance, the flight space is two flight spaces.
  • the flight restriction strategy may be the same or different.
  • the flight distance between the drone and the ground equipment includes the linear distance between the drone and the ground equipment. At this time, the flight range of the drone is ground equipment.
  • the center of the sphere for example, low-lying parking lot or underground shopping mall, etc.
  • hemisphere in this case, no underground parking lot or underground shopping mall, etc.
  • the flight restriction strategy in the embodiment of the present application may be a cube.
  • the flight distance between the drone and the ground device may include a vertical distance between the drone and the horizontal plane.
  • multiple ground devices can be used to determine the vertical distance of the drone from the horizontal plane.
  • the flight range of the drone is a rectangular parallelepiped composed of a plane and a horizontal plane at a predetermined distance from the horizontal plane.
  • the shape of the flight range of the drone is different depending on the actual situation, and the present application does not specifically limit this.
  • the embodiment of the present application further provides a drone that includes a virtual device corresponding to the information processing method.
  • the schematic diagram of the drone provided by the embodiment of the present application includes:
  • the first obtaining module 71 is configured to acquire a signal transmission time difference between the drone and the ground device;
  • the second obtaining module 72 is configured to obtain a flight distance between the UAV and the ground device according to the signal transmission time difference.
  • the first obtaining module 71 may include:
  • a sending module configured to send a first signal to the ground device, and record a first start time of sending the first signal
  • a first receiving module configured to receive a second signal fed back by the ground device, and record a second start time of receiving the second signal
  • An acquiring module configured to obtain a signal transmission time difference between the UAV and the ground device according to the first starting time, the second starting time, and a preset delay time, where the preset delay time is And a time difference between a start time at which the ground device receives the first signal and a start time at which the ground device transmits the second signal.
  • the first obtaining module 71 may include:
  • a second receiving module configured to receive a first signal sent by the ground device
  • a sending module configured to: when a preset delay time is delayed by a start time of receiving the first signal, send a second signal, so that the ground device is configured to send a first start according to the first signal Receiving a second transmission time of the second signal and the preset delay time to obtain a signal transmission time difference between the UAV and the ground device;
  • a third receiving module configured to receive the signal transmission time difference sent by the ground device.
  • it also includes:
  • a flight limiting module configured to generate a first control instruction when the flight distance is greater than or equal to a preset distance, where the first control instruction includes: controlling a flight between the drone and the ground device A control command having a distance less than the preset distance, and/or a control command for prompting a shortening of a flight distance between the drone and the ground device.
  • the flight limiting module includes:
  • a first generating module configured to generate, when the flight distance is greater than or equal to the first preset distance, a control instruction for prompting to shorten a flight distance between the drone and the ground device;
  • a second generation module configured to: when the flight distance is greater than or equal to a second preset distance, generate a flight distance for controlling the drone and the ground device to be less than the second preset distance Control command, the first preset distance is less than or equal to the second preset distance.
  • the fly-limit module may be located in the drone or in the ground device; if it is located in the ground device, the ground device needs to send the control command to the drone.
  • the embodiment of the present application further provides an internal structure diagram of the unmanned aerial vehicle.
  • the internal structure diagram of the unmanned aerial vehicle provided by the embodiment of the present application includes:
  • a memory 81 for storing a program
  • the program can include program code, the program code including computer operating instructions.
  • the memory 81 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 82 is configured to execute the program, where the program is specifically used to:
  • the processor 82 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • the drone may also include a communication interface 83 and a communication bus 84, wherein the memory 81, the processor 82, and the communication interface 83 communicate with each other via the communication bus 84.
  • the processor 82 when performing the acquiring the signal transmission time difference between the UAV and the ground device, the processor 82 may be specifically configured to:
  • the processor 82 when performing the acquiring the signal transmission time difference between the UAV and the ground device, the processor 82 may be specifically configured to:
  • processor 82 is further configured to:
  • a flight control distance between the UAV and the ground device is less than the preset A control command for the distance, and/or a control command for prompting a reduction in the flight distance between the drone and the ground device.
  • the processor 82 when the processor 82 generates the first control instruction when the flight distance is greater than or equal to the preset distance, the processor 82 is specifically configured to:
  • the embodiment of the present application further provides a computer readable storage medium, where a computer program is stored thereon, and when the computer program is executed by the processor, the following steps are implemented:
  • a flight control distance between the UAV and the ground device is less than the preset A control command for the distance, and/or a control command for prompting a reduction in the flight distance between the drone and the ground device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Traffic Control Systems (AREA)

Abstract

一种信息处理方法、无人机及计算机可读存储介质,首先获取无人机与地面设备之间的信号传输时间差(S101),再依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离(S102),由于地面设备与无人机的距离相比,远远小于无人机与卫星之间的距离,因此,地面设备的信号不易被干扰或屏蔽,因此,基于地面设备与无人机之间的信号传输时间差,可以更加精准且容易的获得飞行距离。

Description

一种信息处理方法、无人机及计算机可读存储介质 技术领域
本申请涉及无人机技术领域,更具体涉及信息处理方法、无人机及计算机可读存储介质。
背景技术
最近几年无人机应用越来越广泛,在给广大消费者带来新的体验的同时,无人机也给社会带来一些潜在风险,包括无人机侵犯个人隐私,闯入国家军事机密地,危害客机安全等等。因此,需要对无人机的飞行范围进行限制。
无人机飞行范围的限制的关键在于限制无人机的飞行距离,而无人机飞行距离的计算,是本领域技术人员研究的重点。
发明内容
有鉴于此,本发明提供了一种信息处理方法、无人机及计算机可读存储介质,以克服现有技术中无人机的飞行距离难以获取的问题。
为实现上述目的,本发明提供如下技术方案:
一种信息处理方法,应用于无人机,包括:
获取所述无人机与地面设备之间的信号传输时间差;
依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
一种无人机,包括:
第一获取模块,用于获取所述无人机与地面设备之间的信号传输时间差;
第二获取模块,用于依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
一种无人机,包括:
存储器,用于存储程序;
处理器,用于执行所述程序,所述程序具体用于:
获取所述无人机与地面设备之间的信号传输时间差;
依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处 理器执行时实现以下步骤:
获取所述无人机与地面设备之间的信号传输时间差;
依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
经由上述的技术方案可知,与现有技术相比,本发明实施例提供了一种信息处理方法,首先获取无人机与地面设备之间的信号传输时间差,再依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离,由于地面设备与无人机的距离相比,远远小于无人机与卫星之间的距离,因此,地面设备的信号不易被干扰或屏蔽,因此,基于地面设备与无人机之间的信号传输时间差,可以更加精准且容易的获得飞行距离。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。
图1为本申请实施例提供的一种信息处理方法的流程图;
图2为无人机和地面设备之间采用时分双工进行通信的过程中Δt的示意图;
图3为无人机和地面设备之间采用频分双工进行通信的过程中Δt的示意图;
图4为本申请实施例提供的信号传输时间差的计算方法的一种实现方式的信令图;
图5为本申请实施例提供的信号传输时间差的计算方法的一种实现方式的信令图;
图6为本申请实施例提供的限飞策略的一种实现方式的示意图;
图7为本申请实施例提供的无人机的结构图;
图8为本申请实施例提供的无人机的内部结构图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
无人机如果不受飞行限制,则可以访问军事区域和机场、闯入私人领地,造成军事机密泄露或私人信息的泄露,还可能危害客机安全。目前,无人机依赖于自身的卫星定位接收机来确定自身是否在军事区域、机场、私人领地。具体的,无人机中的卫星定位接收机可以获取各个卫星发送至无人机的定位信号,卫星定位接收机可以依据各卫星发送至无人机的定位信号,获取各卫星将定位信号发送至无人机的信号传输时间;卫星定位接收机依据各卫星相应的信号传输时间获得各卫星与无人机之间的距离,依据各卫星与无人机之间的距离,进一步计算出自己所在的位置。
卫星的定位信号从卫星传输至无人机的过程中,由于距离遥远,卫星信号的信号强度大幅衰减,在定位信号传输过程中,一旦存在自然或认为干扰或屏蔽,无人机则无法对自己进行定位。
与定位信号容易受到干扰或屏蔽相比,无人机和地面设备之间的通信链路要可靠、健壮的多。
因此,本申请实施例提供了一种信息处理方法,如图1所示,为本申请实施例提供的一种信息处理方法的流程图,该信息处理方法包括:
步骤S101:获取所述无人机与地面设备之间的信号传输时间差。
无人机和地面设备之间能进行正常双向通信;无人机和地面设备可以采用时分双工TDD的方式进行双向通信,也可以采用频分双工FDD的方式进行双向通信。
若采用时分双工TDD,则需要无人机和地面设备之间形成载波频率同步和定时同步;假设无人机(或地面设备)首先向地面设备(或无人机)发送信号序列Si(i=0,1,2…);地面设备(或无人机)以接收到信号序列Si的时刻为起始时刻,延迟Δt时刻后,向无人机(或地面设备)反馈信号序列Ri(i=0,1,2…),由于地面设备(或无人机)需要完全接收信号序列Si后才会向无人机(或地面设备)反馈信号序列Ri,因此,Δt大于或等于信号序列Si的持续时间。如图2所示,为无人机和地面设备之间采用时分双工进行通信的过程中Δt的示意图。
假设,A设备首先向地面设备发送信号序列Si,B设备以接收到信号序列Si时刻为起始时刻,延迟Δt时刻后,向A设备反馈信号序列Ri
若A设备为无人机,则B设备为地面设备;若A设备为地面设备,则B设备为无人机。
在一些实施例中,A设备在正常工作时,可使用卫星定位信息测量与B设备之间的距离。当卫星定位信息失效后,A设备可使用图1所示的方法测量与B设备之间的距离。若A设备为无人机,则B设备为地面设备;若A设备为地面设备,则B设备为无人机。
在其他实施例中,A设备可在正常工作时使用图1中所示的方法测量与B设备之间的距离。当A设备与B设备之间的通信出现故障时,A设备可使用卫星定位信息,测量与B设备之间的距离。若A设备为无人机,则B设备为地面设备;若A设备为地面设备,则B设备为无人机。
通过以上两种测量距离方法之间的切换,可以保证无人机在卫星定位信息失败后及时地切换到图1所示的方法上,以保证继续测量无人机与地面设备之间的距离。或者在图1所示的方法因为通信故障而失效时,及时地切换到使用卫星定位信息,继续测量无人机与地面设备之间的距离。
图2中,Tx表示发送端,Rx表示接收端。因此,将A设备发送的信号序列Si称为Si(Tx),将B设备接收到的信号序列Si称为Si(Rx);将B设备反馈的信号序列Ri称为Ri(Tx),将A设备接收到的信号序列Ri称为Ri(Rx)。在实际中,Si(Tx)与Si(Rx)为同一信号序列;Ri(Tx)与Ri(Rx)为同一信号序列。
若采用频分双工FDD,则需要无人机和地面设备形成载波频率同步。假设无人机(或地面设备)首先向地面设备(或无人机)发送信号序列Si(i=0,1,2…);地面设备(或无人机)以接收到信号序列Si的时刻为起始时刻,延迟Δt时刻后,向无人机(或地面设备)反馈信号序列Ri(i=0,1,2…),由于地面设备(或无人机)只要接收到部分信号序列Si后,就可以向无人机(或地面设备)反馈信号序列Ri,因此,Δt无上述要求。
如图3所示,为无人机和地面设备之间采用频分双工进行通信的过程中Δt的示意图。
假设,A设备首先向地面设备发送信号序列Si,B设备以接收到信号序列Si时刻为起始时刻,延迟Δt时刻后,向A设备反馈信号序列Ri
若A设备为无人机,则B设备为地面设备;若A设备为地面设备,则B设备为无人机。
图3中,Tx表示发送端,Rx表示接收端。因此,将A设备发送的信号序列Si称为Si(Tx),将B设备接收到的信号序列Si称为Si(Rx);将B设备反馈的信号序列Ri称为Ri(Tx),将A设备接收到的信号序列Ri称为Ri(Rx)。在实际中,Si(Tx)与Si(Rx)为同一信号序列;Ri(Tx)与Ri(Rx)为同一信号序列。
优选的,图2和图3中的一组Si(Tx)与Ri(Tx)为一个周期,在一个周期中包括:A设备发送信号序列Si(Tx);以及A设备接收B设备针对信号序列Si(Tx)反馈的信号序列Ri(Tx)。在一个周期内,尽量避免信号序列Si+1(Tx)开始发送之后,收到Ri(Tx),例如,避免以下情况,A设备发送了S1(Tx),在接收到与S1(Tx)对应的R1(Tx)之前,A设备已经发送了S2(Tx)。
其中,图2和图3中示出的A设备向B设备的传输时延与B设备向A设备的传输时延之和,为由于无人机和地面设备之间的距离产生的传输时延。若A设备与B设备之间的距离一直没有发生变化,则A设备向B设备的传输时延与B设备向A设备的传输时延应该相等;由于无人机一直处于飞行状态,因此无人机和地面设备之间的距离可能时刻都在变化。但是由于从A设备发送信号序列Si(Tx)到A设备接收到信号序列Ri(Rx)的过程中时间很短,因此,可以看做A设备向B设备的传输时延与B设备向A设备的传输时延相同。
通过无人机和地面设备之间的信号序列的传输时间,就可以获得步骤S101中的信号传输时间差。
结合图2和图3可知,无论是那种通信方式,在第i个周期中,由于无人机与地面设备之间的距离导致的传输时延Ti的计算公式可以如下:
Ti=Ti2-Ti1-Δt
其中,Ti为A设备向B设备的传输时延与B设备向A设备的传输时延之和。
步骤S101中的信号传输时间差可以包括传输时延Ti
获取无人机和地面设备之间的飞行距离的周期T大于或等于“A设备发送信号序列Si(Tx)的时间,与接收到B设备针对信号序列Si(Tx)时间差”。
优选的,周期T可以满足以下条件:
Figure PCTCN2017090527-appb-000001
其中,Dmax表示无人机与地面设备之间的最大飞行距离,c为光速。
步骤S102:依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
飞行距离D的计算公式可以如下:
Figure PCTCN2017090527-appb-000002
其中,c为光速。
飞行距离D近似等效为无人机和地面设备之间的瞬时物理距离。
本申请实施例提供的信息处理方法中,首先获取无人机与地面设备之间的信号传输时间差,再依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离,由于地面设备与无人机的距离相比,远远小于无人机与卫星之间的距离,因此,地面设备的信号不易被干扰或屏蔽,因此,基于地面设备与无人机之间的信号传输时间差,可以更加精准且容易的获得飞行距离。
在室内卫星和无人机就无法进行交互,无法对无人机的飞机范围进行限制,而地面设备则不受干扰。
本申请实施例中“获取所述无人机与地面设备之间的信号传输时间差”的方法有多种,本申请实施例提供但不限于以下几种:
第一种,如图4所示,为本申请实施例提供的信号传输时间差的计算方法的一种实现方式的信令图,该方法包括:
步骤S401:无人机11向地面设备12发送第一信号(例如信号序列Si),并记录发送第一信号的第一起始时刻(例如Ti1)。
步骤S402:地面设备12以接收到第一信号的时刻为起始时刻,延迟预设延迟时间(例如Δt)时,向无人机11反馈第二信号(例如信号序列Ri)。
步骤S403:无人机11接收第二信号,并记录接收第二信号的第二起始时刻(例如Ti2)。
步骤S404:无人机11依据所述第一起始时刻、所述第二起始时刻以及预 设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差。
第二种,如图5所示,为本申请实施例提供的信号传输时间差的计算方法的一种实现方式的信令图,该方法包括:
步骤S501:地面设备12向无人机11发送第一信号(例如信号序列Si),并记录发送第一信号的第一起始时刻(例如Ti1)。
步骤S502:无人机11以接收到第一信号的时刻为起始时刻,延迟预设延迟时间(例如Δt)时,向地面设备12反馈第二信号(例如信号序列Ri)。
步骤S503:地面设备12接收第二信号,并记录接收第二信号的第二起始时刻(例如Ti2)。
步骤S504:地面设备12依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差。
步骤S505:地面设备12向无人机11发送信号传输时间差。
可以理解的是,获得精确地飞行距离是为了更好的对无人机进行限飞,因此,在一优选实施例中,当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
其中,“用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令”可以是强制无人机下降,和/或,降低无人机的飞行速度,和/或,控制无人机返航。
其中,“用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令”可以是控制无人机一直处于当前位置不能移动,即悬停,和/或,警告无人机返航。
可以为无人机设置一个或多个警戒距离,即预设距离可以包括一个或多个警戒距离。无人机的飞行距离大于或等于各警戒距离时,无人机生成的控制指令可以相同,也可以不同。下面以一具体例子对各警戒距离进行说明。
如图6所示,为本申请实施例提供的限飞策略的一种实现方式的示意图。
其中,地面设备所在的位置为图6所示的球心O点;阴影的平面为水平面。 由于目前存在低下车库、地下室、低下商场,因此图6为球形。假设预先设置第一预设距离(第一设距离可以为图6中球1的半径Dwarning),若无人机与地面设备之间的飞行距离小于第一预设距离(例如,无人机在A位置),则无人机可以在球1内的任意位置飞行;若无人机与地面设备之间的飞行距离大于或等于第一预设距离(例如,无人机在图6中的B位置),此时,可以生成提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令,例如警告立即返航,否则无人机可能发生强制降落的控制指令。
若无人机的用户并未响应该警告,依旧继续飞行,当无人机的飞行距离大于或等于第二预设距离(第二预设距离可以为图6中球2的半径Drestrict),假设,无人机到达C位置,则生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,例如强制无人机发生降落,或者,无无人机可以水平移动但不能升高无人机;或,控制无人机的速度下降。
若无人机的飞行距离小于第二预设距离,则用户可以恢复对无人机的控制。
具体结果可以如下:
当飞行距离Di<Dwarning,不对无人机做飞行限制,如图6中的状态A;
当Dwarning≤Di≤Drestrict,警告用户立即控制无人机返航,否则无人机随时可能发生强制降落,如图6中的状态B;
当Drestrict≤Di,强制无人机下降,如图6中的状态C;期间用户可以水平位移无人机,可以提高或者降低下降速度,但是无法取消飞机下降或者升高飞机。
如果无人机在下降过程中满足Di<Dwarning,则恢复用户对无人机的控制,如图6中的状态D。如果下降过程中,无人机落地,优选的,无人机将无法再次起飞,如图6中的状态E。
图6中,无人机由A位置移动至B位置,又从B位置移动至C位置,再从C位置被迫降落至D位置;或直接从C位置降落至地面E位置。
图6中是以两个警戒距离,即第一预设距离和第二预设距离为例进行说明的,在实际应用中,本申请中的预设距离可以包括一个或多个警戒距离,对此并不进行限定。
本申请实施例中基于地面设备将无人机的飞行空间划分为至少两个飞行 空间,当仅有一个警戒距离时,飞行空间为两个飞行空间。无人机的飞行距离大于或等于不同的警戒距离时,限飞策略可以相同,也可以不同。
图6中仅以球体为例进行说明,无人机与地面设备之间的飞行距离包括:无人机与地面设备之间的直线距离;此时,无人机的飞行范围是以地面设备为中心的球体(例如有低下停车场或地下商场等)或半球体(此时,无地下停车场或地下商场等)。
本申请实施例中的限飞策略可以为正方体,例如,无人机与地面设备之间的飞行距离可以包括无人机与水平面的垂直距离。此时,可以有多个地面设备共同确定无人机与水平面的垂直距离。此时无人机的飞行范围是以距离水平面预设距离的平面与水平面所组成的长方体。
依据实际情况不同,无人机的飞行范围的形状不同,对此本申请并不做具体限定。
本申请实施例还提供了包含与信息处理方法对应的虚拟装置的无人机,如图7所示,为本申请实施例提供的无人机的结构图,该无人机包括:
第一获取模块71,用于获取所述无人机与地面设备之间的信号传输时间差;
第二获取模块72,用于依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
可选的,第一获取模块71可以包括:
发送模块,用于向所述地面设备发送第一信号,并记录发送所述第一信号的第一起始时刻;
第一接收模块,用于接收所述地面设备反馈的第二信号,并记录接收所述第二信号的第二起始时刻;
获取模块,用于依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差,所述预设延迟时间为所述地面设备接收所述第一信号的起始时刻与所述地面设备发送所述第二信号的起始时刻的时间差。
可选的,第一获取模块71可以包括:
第二接收模块,用于接收所述地面设备发送的第一信号;
发送模块,用于当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
第三接收模块,用于接收所述地面设备发送的所述信号传输时间差。
可选的,还包括:
限飞模块,用于当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
可选的,所述限飞模块包括:
第一生成模块,用于当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
和/或,
第二生成模块,没用于当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
本申请实施例中限飞模块可以位于无人机中,也可以位于地面设备中;若位于地面设备中,则地面设备产生控制指令后,还需要发送至无人机。
本申请实施例还提供了一种无人机的内部结构图,如图8所示,为本申请实施例提供的无人机的内部结构图,该无人机包括:
存储器81,用于存储程序;
程序可以包括程序代码,所述程序代码包括计算机操作指令。
存储器81可能包含高速RAM存储器,也可能还包括非易失性存储器(non-volatile memory),例如至少一个磁盘存储器。
处理器82,用于执行所述程序,所述程序具体用于:
获取所述无人机与地面设备之间的信号传输时间差;
依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
处理器82可能是一个中央处理器CPU,或者是特定集成电路ASIC(Application Specific Integrated Circuit),或者是被配置成实施本发明实施例的一个或多个集成电路。
无人机还可以包括通信接口83以及通信总线84,其中,存储器81、处理器82以及通信接口83通信均通过通信总线84实现相互间的通信。
可选的,处理器82在执行获取所述无人机与地面设备之间的信号传输时间差时,可具体用于:
向所述地面设备发送第一信号,并记录发送所述第一信号的第一起始时刻;
接收所述地面设备反馈的第二信号,并记录接收所述第二信号的第二起始时刻;
依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差,所述预设延迟时间为所述地面设备接收所述第一信号的起始时刻与所述地面设备发送所述第二信号的起始时刻的时间差。
可选的,处理器82在执行获取所述无人机与地面设备之间的信号传输时间差时,可具体用于:
接收所述地面设备发送的第一信号;
当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所 述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
接收所述地面设备发送的所述信号传输时间差。
可选的,处理器82还可以用于:
当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
可选的,处理器82在执行当所述飞行距离大于或等于预设距离时,生成第一控制指令时,具体用于:
当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
和/或,
当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
本申请实施例还提供了一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现以下步骤:
获取所述无人机与地面设备之间的信号传输时间差;
依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
可选的,所述获取所述无人机与地面设备之间的信号传输时间差被处理器执行时实现以下步骤:
接收所述地面设备发送的第一信号;
当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所 述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
接收所述地面设备发送的所述信号传输时间差。
可选的,所述计算机程序被处理器执行时还实现以下步骤:
当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
可选的,所述当所述飞行距离大于或等于预设距离时,生成第一控制指令被处理器执行时实现以下步骤:
当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
和/或,
当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (20)

  1. 一种信息处理方法,其特征在于,应用于无人机,包括:
    获取所述无人机与地面设备之间的信号传输时间差;
    依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
  2. 根据权利要求1所述信息处理方法,其特征在于,所述获取所述无人机与地面设备之间的信号传输时间差包括:
    向所述地面设备发送第一信号,并记录发送所述第一信号的第一起始时刻;
    接收所述地面设备反馈的第二信号,并记录接收所述第二信号的第二起始时刻;
    依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差,所述预设延迟时间为所述地面设备接收所述第一信号的起始时刻与所述地面设备发送所述第二信号的起始时刻的时间差。
  3. 根据权利要求1所述信息处理方法,其特征在于,所述获取所述无人机与地面设备之间的信号传输时间差包括:
    接收所述地面设备发送的第一信号;
    当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
    接收所述地面设备发送的所述信号传输时间差。
  4. 根据权利要求1所述信息处理方法,其特征在于,还包括:
    当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
  5. 根据权利要求4所述信息处理方法,其特征在于,所述当所述飞行距离大于或等于预设距离时,生成第一控制指令包括:
    当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
    和/或,
    当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
  6. 一种无人机,其特征在于,包括:
    第一获取模块,用于获取所述无人机与地面设备之间的信号传输时间差;
    第二获取模块,用于依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
  7. 根据权利要求6所述无人机,其特征在于,所述第一获取模块包括:
    发送模块,用于向所述地面设备发送第一信号,并记录发送所述第一信号的第一起始时刻;
    第一接收模块,用于接收所述地面设备反馈的第二信号,并记录接收所述第二信号的第二起始时刻;
    获取模块,用于依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差,所述预设延迟时间为所述地面设备接收所述第一信号的起始时刻与所述地面设备发送所述第二信号的起始时刻的时间差。
  8. 根据权利要求6所述无人机,其特征在于,所述第一获取模块包括:
    第二接收模块,用于接收所述地面设备发送的第一信号;
    发送模块,用于当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
    第三接收模块,用于接收所述地面设备发送的所述信号传输时间差。
  9. 根据权利要求6所述无人机,其特征在于,还包括:
    限飞模块,用于当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
  10. 根据权利要求9所述无人机,其特征在于,所述限飞模块包括:
    第一生成模块,用于当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
    和/或,
    第二生成模块,没用于当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
  11. 一种无人机,其特征在于,包括:
    存储器,用于存储程序;
    处理器,用于执行所述程序,所述程序具体用于:
    获取所述无人机与地面设备之间的信号传输时间差;
    依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
  12. 根据权利要求11所述无人机,其特征在于,所述处理器在执行获取所述无人机与地面设备之间的信号传输时间差时,具体用于:
    向所述地面设备发送第一信号,并记录发送所述第一信号的第一起始时刻;
    接收所述地面设备反馈的第二信号,并记录接收所述第二信号的第二起始时刻;
    依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差,所述预设延迟时间为所述地面设备接收所述第一信号的起始时刻与所述地面设备发送所述第二信号的起始时刻的时间差。
  13. 根据权利要求11所述无人机,其特征在于,所述处理器在执行获取所述无人机与地面设备之间的信号传输时间差时,具体用于:
    接收所述地面设备发送的第一信号;
    当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
    接收所述地面设备发送的所述信号传输时间差。
  14. 根据权利要求11所述无人机,其特征在于,所述处理器还可以用于:
    当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
  15. 根据权利要求14所述无人机,其特征在于,所述处理器在执行当所述飞行距离大于或等于预设距离时,生成第一控制指令时,具体用于:
    当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
    和/或,
    当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
  16. 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现以下步骤:
    获取所述无人机与地面设备之间的信号传输时间差;
    依据所述信号传输时间差,获得所述无人机与所述地面设备之间的飞行距离。
  17. 根据权利要求16所述计算机可读存储介质,其特征在于,所述获取所述无人机与地面设备之间的信号传输时间差被处理器执行时实现以下步骤:
    向所述地面设备发送第一信号,并记录发送所述第一信号的第一起始时刻;
    接收所述地面设备反馈的第二信号,并记录接收所述第二信号的第二起始 时刻;
    依据所述第一起始时刻、所述第二起始时刻以及预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差,所述预设延迟时间为所述地面设备接收所述第一信号的起始时刻与所述地面设备发送所述第二信号的起始时刻的时间差。
  18. 根据权利要求16所述无人机,其特征在于,所述获取所述无人机与地面设备之间的信号传输时间差被处理器执行时实现以下步骤:
    接收所述地面设备发送的第一信号;
    当以接收所述第一信号的起始时刻为起始时间延迟预设延迟时间时,发送第二信号,以使所述地面设备依据发送所述第一信号的第一起始时刻、接收所述第二信号的第二起始时刻以及所述预设延迟时间,获得所述无人机与所述地面设备之间的信号传输时间差;
    接收所述地面设备发送的所述信号传输时间差。
  19. 根据权利要求16所述无人机,其特征在于,所述计算机程序被处理器执行时还实现以下步骤:
    当所述飞行距离大于或等于预设距离时,生成第一控制指令,所述第一控制指令包括:用于控制所述无人机与所述地面设备之间的飞行距离小于所述预设距离的控制指令,和/或,用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令。
  20. 根据权利要求19所述无人机,其特征在于,所述当所述飞行距离大于或等于预设距离时,生成第一控制指令被处理器执行时实现以下步骤:
    当所述飞行距离大于或等于第一预设距离时,生成用于提示缩短所述无人机与所述地面设备之间的飞行距离的控制指令;
    和/或,
    当所述飞行距离大于或等于第二预设距离时,生成用于控制所述无人机与所述地面设备之间的飞行距离小于所述第二预设距离的控制指令,所述第一预设距离小于或等于所述第二预设距离。
PCT/CN2017/090527 2017-06-28 2017-06-28 一种信息处理方法、无人机及计算机可读存储介质 WO2019000269A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780005162.6A CN108541357A (zh) 2017-06-28 2017-06-28 一种信息处理方法、无人机及计算机可读存储介质
PCT/CN2017/090527 WO2019000269A1 (zh) 2017-06-28 2017-06-28 一种信息处理方法、无人机及计算机可读存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/090527 WO2019000269A1 (zh) 2017-06-28 2017-06-28 一种信息处理方法、无人机及计算机可读存储介质

Publications (1)

Publication Number Publication Date
WO2019000269A1 true WO2019000269A1 (zh) 2019-01-03

Family

ID=63489826

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/090527 WO2019000269A1 (zh) 2017-06-28 2017-06-28 一种信息处理方法、无人机及计算机可读存储介质

Country Status (2)

Country Link
CN (1) CN108541357A (zh)
WO (1) WO2019000269A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021077307A1 (zh) * 2019-10-22 2021-04-29 深圳市大疆创新科技有限公司 无人飞行器的防破解方法、用户终端以及无人飞行器
CN112154393A (zh) * 2019-10-22 2020-12-29 深圳市大疆创新科技有限公司 无人飞行器的返航控制方法、用户终端以及无人飞行器
CN110932812B (zh) * 2019-11-13 2021-10-01 深圳供电局有限公司 基于时间同步的任务发送方法、任务接收方法及其系统
CN112242874B (zh) * 2020-06-04 2021-08-03 北京航空航天大学 一种基于优化变量解耦的无人机中继传输效能优化方法
CN113296140A (zh) * 2021-04-30 2021-08-24 江苏核电有限公司 一种培训用模拟辐射场强度及剂量测量方法
CN114866169B (zh) * 2022-05-25 2024-09-17 中国电子科技集团公司第五十四研究所 一种基于多链路多通道的无人机数据链时延测试方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105247593A (zh) * 2014-04-17 2016-01-13 深圳市大疆创新科技有限公司 飞行禁区的飞行控制
US20160244161A1 (en) * 2015-02-23 2016-08-25 Daniel R. McClure Unmanned aircraft having flight limitations
CN205561858U (zh) * 2016-04-28 2016-09-07 广安市冠华科技有限公司 一种车载无人机导航系统
CN205615711U (zh) * 2016-05-09 2016-10-05 南京奇蛙智能科技有限公司 一种带有全方位超声波传感器的多旋翼无人机
CN106772412A (zh) * 2016-11-25 2017-05-31 国家电网公司 无人机的输电线路空间距离的测量方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105371818A (zh) * 2015-11-30 2016-03-02 湖北易瓦特科技股份有限公司 测距避障仪和无人机测距避障的方法
CN105425208A (zh) * 2015-12-21 2016-03-23 深圳思科尼亚科技有限公司 一种用于无人机精确导航的定位系统及定位方法
CN205540290U (zh) * 2016-04-07 2016-08-31 北京博鹰通航科技有限公司 一种具有超声波测距装置的多旋翼无人机
CN106443062B (zh) * 2016-08-29 2019-09-17 天津远翥科技有限公司 无人机速度测量方法、装置及无人机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105247593A (zh) * 2014-04-17 2016-01-13 深圳市大疆创新科技有限公司 飞行禁区的飞行控制
US20160244161A1 (en) * 2015-02-23 2016-08-25 Daniel R. McClure Unmanned aircraft having flight limitations
CN205561858U (zh) * 2016-04-28 2016-09-07 广安市冠华科技有限公司 一种车载无人机导航系统
CN205615711U (zh) * 2016-05-09 2016-10-05 南京奇蛙智能科技有限公司 一种带有全方位超声波传感器的多旋翼无人机
CN106772412A (zh) * 2016-11-25 2017-05-31 国家电网公司 无人机的输电线路空间距离的测量方法和装置

Also Published As

Publication number Publication date
CN108541357A (zh) 2018-09-14

Similar Documents

Publication Publication Date Title
WO2019000269A1 (zh) 一种信息处理方法、无人机及计算机可读存储介质
JP6168462B2 (ja) 無人航空機の通信方法及びシステム
US11032859B2 (en) Electronic device for controlling data communication of external electronic device and communication system
US20210116941A1 (en) Positioning method using unmanned aerial robot and device for supporting same in unmanned aerial system
CN116631231A (zh) 用于飞行路径信息报告的方法和装置
US20200023999A1 (en) Method for charging battery of unmanned aerial robot and device for supporting same in unmanned aerial system
WO2019196145A1 (zh) 一种无人机控系统以及无人机控制方法
WO2020124386A1 (en) User equipment, base station and method for communication in non-terrestrial network
WO2022232963A1 (en) Technologies for in-device coexistence in network communication
JP2014211430A (ja) 移動体の通信装置、移動体の通信システム、及び移動体の通信装置を用いた自動時刻補正方法
US11722210B2 (en) Unmanned aerial system communication
KR20220145356A (ko) 네트워크 슬라이스와 관련된 통신
US10503163B2 (en) Remote control apparatus and remote control system
US11855735B2 (en) Technologies for beam failure recovery
US10496089B2 (en) Aircraft control device and remote control aircraft
US20220141730A1 (en) Mobility between Cells in a Wireless Network
WO2021077306A1 (zh) 无人飞行器的返航控制方法、用户终端以及无人飞行器
KR20230021578A (ko) 비지상 네트워크들에서의 시그널링을 위한 통신 디바이스들 및 방법들
WO2018120199A1 (zh) 一种联网控制方法、移动遥控设备、服务器及系统
WO2021077307A1 (zh) 无人飞行器的防破解方法、用户终端以及无人飞行器
CN205910590U (zh) 一种自动返航无人机控制终端
WO2024197859A1 (en) Transmission configuration indicator switching for non-terrestrial network
US11805169B2 (en) Content delivery network data sharing between mobile devices
WO2021212373A1 (zh) 无人飞行器的数据传输方法、芯片、控制设备、飞行控制系统、存储介质及计算机程序产品
WO2021259245A1 (zh) 信息传输方法、装置及通信设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17915438

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17915438

Country of ref document: EP

Kind code of ref document: A1