WO2021078203A1 - 一种飞行器的避障方法、飞行器、飞行系统及存储介质 - Google Patents

一种飞行器的避障方法、飞行器、飞行系统及存储介质 Download PDF

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Publication number
WO2021078203A1
WO2021078203A1 PCT/CN2020/122912 CN2020122912W WO2021078203A1 WO 2021078203 A1 WO2021078203 A1 WO 2021078203A1 CN 2020122912 W CN2020122912 W CN 2020122912W WO 2021078203 A1 WO2021078203 A1 WO 2021078203A1
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Prior art keywords
aircraft
terminal device
dimensional map
obstacle
flight
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PCT/CN2020/122912
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English (en)
French (fr)
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黄欣
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深圳市道通智能航空技术有限公司
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Publication of WO2021078203A1 publication Critical patent/WO2021078203A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/10—Simultaneous control of position or course in three dimensions
    • G05D1/101—Simultaneous control of position or course in three dimensions specially adapted for aircraft

Definitions

  • the invention relates to the technical field of flight control, in particular to an obstacle avoidance method of an aircraft, an aircraft, a flight system and a storage medium.
  • the unmanned aircraft is referred to as "aircraft" for short.
  • the aircraft is an unmanned aircraft operated by radio remote control telemetry equipment and self-provided program control devices. There is no cockpit on board, but it is equipped with navigation and flight control system, program control device, power and power supply and other equipment.
  • the ground remote control telemetering station personnel use data link and other equipment to track, locate, remotely control, remotely measure and digitally transmit it.
  • the aircraft needs to avoid obstacles in order to ensure the smooth flight.
  • Two cameras are installed in the direction of the head, and the left and right cameras are used to reconstruct the parallax information of the target in three dimensions.
  • the shortest distance between the aircraft and the obstacle is calculated. If the maximum safety distance of the aircraft is exceeded, the obstacle avoidance algorithm will be used to avoid obstacles. .
  • the other is radar ranging autonomous obstacle avoidance.
  • the usual practice is to install radar on the aircraft and use the radar to measure the closest distance between the aircraft and the obstacle. If it exceeds the maximum safe distance of the aircraft, a reasonable obstacle avoidance algorithm is used to avoid it. barrier.
  • the camera needs to perform a large amount of image analysis, and the image analysis requires a large amount of computer resources, so the flight control
  • the higher requirements for the processor result in increased costs and increased power consumption.
  • the radar is relatively large and is basically incapable of operating tasks on small drones.
  • the radar measurement process is susceptible to external influences, such as weather. Etc., resulting in inaccurate ranging results.
  • the invention provides an obstacle avoidance method, an aircraft, a flight system, and a storage medium for an aircraft, which aims to prevent the aircraft from being collided by obstacles during flight, ensure safety during flight, and provide a method for accurately avoiding obstacles for the aircraft .
  • the present invention provides an obstacle avoidance method for an aircraft, which is applied to an aircraft, and the aircraft is in communication connection with a terminal device, and the method includes:
  • the three-dimensional map request includes the current location information, so that the terminal device obtains information about the current location from a server that is in communication with the terminal device according to the current location information A three-dimensional map of the area corresponding to the information;
  • the aircraft is provided with a positioning device, and the acquiring current position information of the aircraft includes:
  • the positioning signal is used to obtain the current position information of the aircraft.
  • controlling the aircraft to fly along a preset flight route includes:
  • the judging whether the distance between the aircraft and the obstacle according to the three-dimensional map is less than a distance threshold includes:
  • the aircraft is provided with a camera device, and the method includes:
  • the combined image is sent to the terminal device for real-time display on the terminal device.
  • the aircraft is provided with a camera device, and the method includes:
  • the real-time acquired image is sent to the terminal device, so that the terminal device acquires a combined image based on the real-time acquired image and a preset aircraft image and displays it in real time, wherein the combined image is the preset aircraft image A composite image with the real-time acquisition image.
  • the present invention also provides an aircraft, which includes:
  • a position acquisition module which is used to acquire the current position information of the aircraft
  • the information sending module is configured to send a three-dimensional map request to the terminal device.
  • the three-dimensional map request includes the current location information, so that the terminal device sends the terminal device to the server communicating with the terminal device according to the current location information. Acquiring a three-dimensional map of the area corresponding to the current location information;
  • An information receiving module configured to receive a three-dimensional map corresponding to the current location information sent by the terminal device in response to the three-dimensional map request;
  • the first control module is used to control the aircraft to fly along a preset flight route;
  • the distance detection module is used to determine whether the distance between the aircraft and the obstacle is less than a distance threshold according to the three-dimensional map;
  • the second control module is configured to control the aircraft to perform a preset operation if the distance between the aircraft and the obstacle is less than the distance threshold.
  • the present invention also provides an aircraft, the aircraft is in communication connection with a terminal device, the terminal device is in communication connection with a server, and the aircraft includes:
  • An arm connected to the fuselage
  • the power assembly is arranged on the arm and is used to provide power for the aircraft to fly;
  • the memory is used to store the obstacle avoidance program executable by the computer.
  • the processor is configured to retrieve the executable obstacle avoidance program stored in the memory to execute the aforementioned obstacle avoidance method.
  • the present invention also provides a flight system, the flight system includes an aircraft, a terminal device communicatively connected with the aircraft, and a server communicatively connected with the terminal device, the aircraft including:
  • An arm connected to the fuselage
  • the power assembly is arranged on the arm and is used to provide power for the aircraft to fly;
  • the memory is used to store the obstacle avoidance program executable by the computer.
  • the processor is configured to retrieve the executable obstacle avoidance program stored in the memory to execute the aforementioned obstacle avoidance method.
  • the present invention also provides a storage medium storing an executable calculation program, and the executable calculation program is executed by a computer to implement the aforementioned obstacle avoidance method.
  • the present invention provides an obstacle avoidance method for an aircraft by acquiring the current position information of the aircraft, and sending the current position information to the terminal device communicatively connected with the aircraft, so that the terminal device can report to the terminal device according to the current position information.
  • the server obtains a three-dimensional map of the area corresponding to the current position information, and sends the three-dimensional map to the aircraft.
  • the aircraft obtains the flight route set by the user through the terminal device, and determines whether the distance between the aircraft and the obstacle when flying along the flight route is less than the distance threshold according to the flight route and the three-dimensional map. If it is less, the preset operation is performed.
  • the invention can prevent collisions by obstacles during flight and ensure safety during flight.
  • the use of three-dimensional maps for distance measurement has low power consumption, strong endurance, and good anti-interference, which is beneficial to improving the accuracy of measuring distance.
  • Figure 1 is a schematic diagram of the frame structure of the flight system provided by the present invention.
  • Fig. 2 is a flowchart of the obstacle avoidance method for an aircraft provided by the present invention
  • FIG. 3 is a detailed flowchart of step S13 in FIG. 2;
  • Figure 4 is a schematic diagram of a scene where the aircraft encounters obstacles to avoid obstacles when flying in area B according to a preset trajectory G;
  • FIG. 5 is a detailed flowchart of step S14 in FIG. 2;
  • Figure 6 is an effect diagram of the aircraft or the terminal device combining the image acquired by the aircraft and the preset aircraft image
  • FIG. 7 is a schematic diagram of a block diagram structure of an aircraft provided by the present invention.
  • FIG. 8 is a schematic diagram of a module structure of an aircraft provided by an embodiment of the present invention.
  • a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to clearly listed Instead, those steps or units listed may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.
  • the present invention provides an obstacle avoidance method for an aircraft, an aircraft, a flight system, and a storage medium, wherein the obstacle avoidance method is applied to an aircraft, and the method includes: acquiring current position information of the aircraft; and sending information to the terminal device A three-dimensional map request, which includes the current location information, so that the terminal device obtains a three-dimensional map of the area corresponding to the current location information from a server that is in communication with the terminal device according to the current location information Receiving the three-dimensional map corresponding to the current location information sent by the terminal device in response to the three-dimensional map request; controlling the aircraft to fly along a preset flight route; judging the aircraft and obstacles according to the three-dimensional map Whether the distance between the two is less than a distance threshold; if the distance between the aircraft and the obstacle is less than the distance threshold, control the aircraft to perform a preset operation.
  • the terminal device obtains the three-dimensional map of the area corresponding to the current position information from the server according to the current position information, and Send the 3D map to the aircraft.
  • the aircraft obtains the flight route set by the user through the terminal device, and determines whether the distance between the aircraft and the obstacle when flying along the flight route is less than the distance threshold according to the flight route and the three-dimensional map. If it is less, the preset operation is performed.
  • the method provided by the present invention can prevent the aircraft from being hit by obstacles during the flight, and ensure the safety during flight.
  • the use of three-dimensional maps for ranging has low power consumption, strong endurance, and good anti-interference, which is beneficial to improving the measurement distance. accuracy.
  • FIG. 1 is a flight system 100 provided by the present invention.
  • the flight system 100 includes an aircraft 10, a terminal device 20 communicatively connected with the aircraft 10, and a server 30 communicatively connected with the terminal device 20, wherein the terminal device 20 is used to send flight control instructions to the aircraft 10, so that after receiving the flight control instructions, the aircraft 10 executes corresponding flight operations according to the flight control instructions.
  • the terminal device 20 may be a remote control device, a smart phone, a tablet computer or a notebook Computer, etc.
  • the aircraft 10 includes a fuselage 101, an arm 102, a power assembly 103, a control assembly 104, and a positioning device 105.
  • the arm 102 is connected to the fuselage 101, and the power assembly 103 is arranged on the arm 102 to provide flight power for the aircraft 10.
  • the positioning device 105 is electrically connected to the control component 104 for obtaining positioning signals of the aircraft 10 to realize real-time positioning of the aircraft 10.
  • the control component 104 includes one or more processors 106, and the positioning device 105 may be GPS positioning.
  • the device or Beidou positioning device is not restricted here.
  • the control component 104 includes one or more processors 106.
  • the aircraft 10 is also provided with a sensor component (not shown) for acquiring sensing parameters of the aircraft 10 during flight, so that the control component 104 can learn the flight status of the aircraft 10 in time according to the acquired sensing data to control it.
  • the electrically connected control power component 103 acts to realize the flight control of the aircraft 10, wherein the sensor component may be one or a combination of a gyroscope, an accelerometer, and a pressure sensor.
  • Fig. 2 is an obstacle avoidance method for an aircraft provided by the present invention, including:
  • Step S10 Obtain current position information of the aircraft.
  • the aircraft is provided with a positioning device, and the acquiring current position information of the aircraft includes:
  • the positioning signal is used to obtain the current position information of the aircraft.
  • the method further includes:
  • the positioning device does not receive the positioning signal, send a position request to the terminal device;
  • the receiving terminal device sends the terminal location information sent in response to the location request, and uses the terminal location information as the current location information of the aircraft.
  • the aircraft 10 when the aircraft 10 needs to be used to perform a flight task, the aircraft 10 is turned on to enable the aircraft 10, and the positioning device 105 provided on the aircraft 10 is used to obtain the current position information of the aircraft 10, wherein the positioning device 105 can but not Limited to GPS positioning device.
  • Step S11 Send a three-dimensional map request to the terminal device.
  • the three-dimensional map request includes the current location information, so that the terminal device obtains information from the server that is in communication with the terminal device according to the current location information.
  • the aircraft 10 sends a three-dimensional map request to the terminal device 20 communicatively connected with it according to the acquired current position information, so that the terminal device 20 responds to the three-dimensional map request and obtains from the server 30 the information stored in the server 30 and corresponds to the current position of the aircraft 10
  • the server 30 obtains the three-dimensional map corresponding to the three-dimensional map request area according to the preset relationship, and sends the three-dimensional map to the terminal device 20, so as to send the three-dimensional map to the corresponding terminal device 20 through the terminal device 20.
  • the preset relationship is the corresponding relationship between the current position information and the three-dimensional map.
  • the server 30 stores a three-dimensional map of the areas B, C, D, E, etc. of province A.
  • the aircraft 10 locates the area where it is located in the area B of province A, it sends the corresponding province B to the terminal device 20.
  • the terminal device 20 forwards the three-dimensional map request to the server 30 according to the three-dimensional map request of the region, and the server 30 obtains the corresponding three-dimensional map data of the A province B area according to the three-dimensional map request, and downloads the corresponding three-dimensional map data of the A province B area It is sent to the terminal device 20.
  • the terminal device 20 After receiving the three-dimensional map data of the area of province A and B, the terminal device 20 sends the three-dimensional map data to the aircraft 10.
  • Step S12 Receive a three-dimensional map of an area corresponding to the current location information sent by the terminal device in response to the three-dimensional map request.
  • Step S13 Control the aircraft to fly along a preset flight route
  • step S13 includes:
  • Step S131 Receive flight route information sent by the terminal device, where the flight route information is generated by the terminal device according to a user's control instruction;
  • Step S132 Acquire the flight route of the aircraft according to the flight route information
  • Step S133 Control the aircraft to fly along a preset flight route.
  • the user exemplarily sets the flight path of the aircraft 10 as the flight path G with the starting point Q and the end point Z by controlling the terminal device 20 in the province A and B area, where the flight trajectory G can be set by the user.
  • the trajectory may also be a trajectory automatically generated by the terminal device 20 according to a preset relationship after the user sets the starting point Q and the end point Z of the flight.
  • the terminal device 20 After receiving the confirmation instruction from the user, the terminal device 20 sends the flight route to the aircraft 10 so that the aircraft 10 can fly according to the flight route.
  • Step S14 Determine whether the distance between the aircraft and the obstacle is less than a distance threshold according to the three-dimensional map.
  • step S14 includes:
  • Step S141 Obtain flight location information of the aircraft
  • Step S142 Determine whether the obstacle encountered by the aircraft is a corresponding obstacle on the three-dimensional map
  • Step S143 if yes, obtain the distance between the aircraft and the obstacle according to the flight positioning information and the three-dimensional map;
  • Step S144 Determine whether the distance is less than the distance threshold.
  • determining whether the obstacle encountered by the aircraft is a corresponding obstacle on the three-dimensional map may specifically be:
  • the aircraft 10 flies along a preset flight trajectory G, and the positioning device 105 obtains the flight positioning information of the aircraft 10 during flight in real time.
  • the aircraft 10 obtains the real-time mapping position information mapped by the current line positioning information on the three-dimensional map according to the line positioning information obtained in real time.
  • the aircraft 10 encounters an obstacle, it obtains the position information of the obstacle according to the three-dimensional map, and determines the Whether the distance between the real-time mapping position information and the obstacle position information on the three-dimensional map is less than the distance threshold, so as to determine the distance between the aircraft 10 and the obstacle.
  • Step S15 If the distance between the aircraft and the obstacle is less than the distance threshold, control the aircraft to perform a preset operation.
  • performing the preset operation may be controlling the aircraft 10 to hover, controlling the aircraft 10 to send prompt information to the terminal device 20, and controlling the aircraft 10 to perform obstacle avoidance flight.
  • the aircraft is provided with a camera device, and the method includes:
  • the combined image is sent to the terminal device for real-time display on the terminal device.
  • the aircraft is provided with a camera device, and the method includes:
  • the real-time acquired image is sent to the terminal device, so that the terminal device acquires a combined image based on the real-time acquired image and a preset aircraft image and displays it in real time, wherein the combined image is the preset aircraft image A composite image with the real-time acquisition image.
  • the images are combined with the preset images of the aircraft 10 and sent to the terminal device 20, or the real-time acquired images are sent to the terminal device 20, so that the terminal
  • the device 20 acquires a combined image according to the real-time acquired image and the preset aircraft image and displays it in real time, so that the user can display the natural environment in which the aircraft 10 is located on the display screen of the terminal device 20 in real time, as shown in FIG. 6.
  • the aircraft 10 further includes a memory 107 and a bus 108.
  • the positioning device 105, the power assembly 103, and the memory 107 are electrically connected to the processor 106 through a bus 108.
  • the memory 107 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), magnetic memory, magnetic disk, and optical disk. Wait.
  • the memory 107 may be an internal storage unit of the aircraft 10 in some embodiments, for example, a hard disk of the aircraft 10. In other embodiments, the memory 107 may also be an external storage device of the aircraft 10, for example, a plug-in hard disk equipped on the aircraft 10, a smart memory card (Smart Media Card, SMC), and a Secure Digital (SD). Card, Flash Card, etc.
  • the memory 107 can be used not only to store application software and various data installed in the aircraft 10, but also exemplarily computer-readable program codes, such as obstacle avoidance programs, that is, the memory 107 can be used as a storage medium.
  • the processor 106 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chips, and the processor 106 may call program codes stored in the memory 107 or Process the data to realize the aforementioned obstacle avoidance method.
  • CPU central processing unit
  • controller a controller
  • microcontroller a microcontroller
  • microprocessor or other data processing chips
  • the processor 106 may call program codes stored in the memory 107 or Process the data to realize the aforementioned obstacle avoidance method.
  • an embodiment of the present invention also provides a storage medium, the storage medium is a computer-readable storage medium, the storage medium stores an executable calculation program, and when the executable calculation program is executed, the aforementioned obstacle avoidance is realized. method.
  • the present invention also provides an aircraft 40 that is in communication connection with a terminal device, and the aircraft 40 includes:
  • the position obtaining module 401 is used to obtain the current position information of the aircraft
  • the information sending module 402 is configured to send a three-dimensional map request to the terminal device.
  • the three-dimensional map request includes the current location information, so that the terminal device communicates with the terminal device in communication with the terminal device according to the current location information.
  • the server obtains a three-dimensional map of the area corresponding to the current position information;
  • the information receiving module 403 is configured to receive a three-dimensional map corresponding to the current location information sent by the terminal device in response to the three-dimensional map request;
  • the first control module 404 is used to control the aircraft to fly along a preset flight route; the distance detection module 405 is used to determine whether the distance between the aircraft and the obstacle is less than a distance threshold according to the three-dimensional map;
  • the second control module 406 is configured to control the aircraft to perform a preset operation if the distance between the aircraft and the obstacle is less than the distance threshold.
  • the aircraft 40 is provided with a positioning device, and the position acquisition module 401 is also used for:
  • the positioning signal is used to obtain the current position information of the aircraft.
  • the location acquisition module 401 is also used to:
  • the positioning device does not receive the positioning signal, send a position request to the terminal device;
  • the receiving terminal device sends the terminal location information sent in response to the location request, and uses the terminal location information as the current location information of the aircraft.
  • the first control module 404 is also used to:
  • the distance detection module 405 is also used for:
  • the aircraft 40 further includes an image processing module (not shown).
  • the image processing module is used to control the camera device provided on the aircraft to acquire images in real time when the aircraft flies along the flight route;
  • the combined image is sent to the terminal device for real-time display on the terminal device.
  • the image processing module is also used to:
  • the real-time acquired image is sent to the terminal device, so that the terminal device acquires a combined image based on the real-time acquired image and a preset aircraft image and displays it in real time, wherein the combined image is the preset aircraft image A composite image with the real-time acquisition image.

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Abstract

一种飞行器(10,40)的避障方法、飞行器(10,40)、飞行系统(100)及存储介质，其中，飞行器(10,40)的避障方法，应用于飞行器(10,40)，飞行器(10,40)与终端设备(20)通信连接，方法包括：获取飞行器(10,40)的当前位置信息(S10)；向终端设备(20)发送三维地图请求，三维地图请求中包括当前位置信息，以使终端设备(20)根据当前位置信息向与终端设备(20)通信连接的服务器(30)获取与当前位置信息对应区域的三维地图(S11)；接收终端设备(20)响应三维地图请求发送的与当前位置信息对应的三维地图(S12)；控制飞行器(10,40)沿着预设的飞行航线飞行(S13)；根据三维地图判断飞行器(10,40)与障碍物之间的距离是否小于距离阈值(S14)；若距离小于距离阈值，则控制飞行器(10,40)执行预设操作(S15)。

Description

一种飞行器的避障方法、飞行器、飞行系统及存储介质
本申请要求于2019年10月22日提交中国专利局、申请号为201911007057.3、申请名称为“一种飞行器的避障方法、飞行器、飞行系统及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及飞行控制技术领域，尤其涉及一种飞行器的避障方法、飞行器、飞行系统及存储介质。
背景技术
无人驾驶的飞机简称为“飞行器”，飞行器是利用无线电遥控遥测设备和自备的程序控制装置操纵的不载人飞机。机上无驾驶舱，但安装有导航飞行控制系统、程序控制装置以及动力和电源等设备。地面遥控遥测站人员通过数据链等设备，对其进行跟踪、定位、遥控、遥测和数字传输。
在实际应用中，飞行器为了保证飞行的顺利，需要躲避障碍，现有的通过测距自主避开障碍的方法主要有两种：一种为双目测距自主避障，通常做法为在飞行器机头方向安装两个摄像头，利用左右两个摄像头对目标物的视差信息进行三维重构，计算出飞行器距离障碍物的最近距离，若超过飞行器最大安全距离，则通过合理的避障算法进行避障。
另一种为雷达测距自主避障，通常做法为在飞行器上安装雷达，使用雷达测得飞行器与障碍物之间的最近距离，若超过飞行器最大安全距离，则通过合理的避障算法进行避障。
在实现上述通过测距自主避障的过程中，现有技术中至少存在如下问题：第一种方案中，摄像头需要进行大量的图像分析，而图像分析需要占用大量的计算机资源，因此对飞行控制的处理器要求较高，导致成本增加，功耗增大；第二种方案中，雷达的体积较大在小型无人机上基本不能胜任作业任务，同时雷达测量过程容易受到外界影响，例如天气影响等，导致测距结果不准确。
发明内容
本发明提供一种飞行器的避障方法、飞行器、飞行系统及存储介质，旨 在防止飞行器在飞行途中被障碍物碰撞，保证飞行时的安全性，同时提供一种可以使飞行器精确避障的方法。
为实现上述目的，本发明提供一种飞行器的避障方法，应用于飞行器，所述飞行器与终端设备通信连接，所述方法包括：
获取所述飞行器的当前位置信息；
向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通信连接的服务器获取与所述当前位置信息对应区域的三维地图；
接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应的三维地图；
控制所述飞行器沿着预设的飞行航线飞行；根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值；
若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
优选地，所述飞行器设置有定位装置，所述获取飞行器的当前位置信息包括：
检测所述定位装置是否接收到定位信号；
若所述定位装置接收到所述定位信号，则利用所述定位信号获取所述飞行器的当前位置信息。
优选地，所述控制所述飞行器沿着预设的飞行航线飞行，包括：
接收所述终端设备发送的飞行航线信息，其中，所述飞行航线信息为所述终端设备根据用户的操控指令生成；
根据所述飞行航线信息获取所述飞行器的飞行航线；
控制所述飞行器沿着预设的飞行航线飞行。
优选地，所述根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值，包括：
获取所述飞行器的飞行定位信息；
判断所述飞行器遇到的障碍物是否为所述三维地图上对应的障碍物；
若是，则根据所述飞行定位信息和所述三维地图获取所述飞行器与所述障碍物之间的距离；
判断所述距离是否小于所述距离阈值。
优选地，所述飞行器设置有摄像装置，所述方法包括：
当所述飞行器沿着所述飞行航线飞行时，控制所述摄像装置实时获取图像；
根据所述实时获取图像与预设飞行器图像获取拼合图像，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像；
将所述拼合图像发送给所述终端设备，以在所述终端设备实时显示。
优选地，所述飞行器设置有摄像装置，所述方法包括：
当所述飞行器沿着所述飞行航线飞行时，控制所述摄像装置实时获取图像；
将所述实时获取图像发送给所述终端设备，以使所述终端设备根据所述实时获取图像与预设飞行器图像获取拼合图像并实时显示，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像。
为实现上述目的，本发明还提供一种飞行器，所述飞行器包括：
位置获取模块，用于获取所述飞行器的当前位置信息；
信息发送模块，用于向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通信连接的服务器获取与所述当前位置信息对应区域的三维地图；
信息接收模块，用于接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应的三维地图；
第一控制模块，用于控制所述飞行器沿着预设的飞行航线飞行；距离检测模块，用于根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值；
第二控制模块，用于若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
为实现上述目的，本发明还提供一种飞行器，所述飞行器与终端设备通信连接，所述终端设备与服务器通信连接，所述飞行器包括：
机身；
机臂，与所述机身相连；
动力组件，设于所述机臂，用于给所述飞行器提供飞行的动力；
存储器，用于存储计算机可执行的避障程序；及
处理器，用于调取存储在所述存储器中的可执行的避障程序，以执行前述的避障方法。
为实现上述目的，本发明还提供一种飞行系统，所述飞行系统包括飞行器、与所述飞行器通信连接的终端设备以及与所述终端设备通信连接的服务器，所述飞行器包括：
机身；
机臂，与所述机身相连；
动力组件，设于所述机臂，用于给所述飞行器提供飞行的动力；
存储器，用于存储计算机可执行的避障程序；及
处理器，用于调取存储在所述存储器中的可执行的避障程序，以执行前述的避障方法。
为实现上述目的，本发明还提供一种存储介质，所述存储介质存储有可执行计算程序，所述可执行计算程序被计算机被执行时，实现前述的避障方法。
与现有技术相比，本发明提供一种飞行器的避障方法通过获取飞行器的当前位置信息，并将当前位置信息发送给与该飞行器通信连接的终端设备，以使终端设备根据当前位置信息向服务器获取与当前位置信息所对应的区域的三维地图，并将该三维地图发送至飞行器。飞行器获取用户通过终端设备设置的飞行航线，并根据飞行航线和三维地图判断飞行器沿着飞行航线飞行时，与障碍物之间的距离是否小于距离阈值，若小于，则执行预设操作。本发明可以防止飞行途中被障碍物碰撞，保证飞行时的安全性，利用三维地图进行测距具有功耗低，续航能力强，抗干扰性好，有利于提升测量距离的准确性。
附图说明
图1为本发明提供的飞行系统框架结构示意图；
图2为本发明提供的飞行器的避障方法的流程图；
图3为图2中步骤S13的细节流程图；
图4为飞行器在区域B按照预设轨迹G飞行时，遇到障碍物进行避障飞行的场景示意图；
图5为图2中步骤S14的细节流程图；
图6为飞行器或终端设备将飞行器获取图像和预设飞行器图像拼合的效果图；
图7为本发明提供的飞行器的框图结构示意图；
图8为本发明一实施例提供的飞行器的模块结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，如下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，示例性地，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
需要说明的是，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提供一种飞行器的避障方法、飞行器、飞行系统及存储介质，其中，该避障方法，应用于飞行器，所述方法包括：获取所述飞行器的当前位置信息；向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通 信连接的服务器获取与所述当前位置信息对应区域的三维地图；接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应的三维地图；控制所述飞行器沿着预设的飞行航线飞行；根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值；若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
即，通过获取飞行器的当前位置信息，并将当前位置信息发送给与该飞行器通信连接的终端设备，以使终端设备根据当前位置信息向服务器获取与当前位置信息所对应的区域的三维地图，并将该三维地图发送至飞行器。飞行器获取用户通过终端设备设置的飞行航线，并根据飞行航线和三维地图判断飞行器沿着飞行航线飞行时，与障碍物之间的距离是否小于距离阈值，若小于，则执行预设操作。本发明所提供的方法可以防止飞行器在飞行途中被障碍物碰撞，保证飞行时的安全性，利用三维地图进行测距具有功耗低，续航能力强，抗干扰性好，有利于提升测量距离的准确性。
请参阅图1，图1为本发明提供的一种飞行系统100，该飞行系统100包括飞行器10、与飞行器10通信连接的终端设备20以及与终端设备20通信连接的服务器30，其中，终端设备20用于向飞行器10发送飞行控制指令，以使飞行器10接收到该飞行控制指令后，根据该飞行控制指令执行相应的飞行操作，该终端设备20可以是遥控装置、智能手机、平板电脑或笔记本电脑等。
具体地，该飞行器10包括机身101、机臂102、动力组件103、控制组件104以及定位装置105。机臂102与机身101连接，动力组件103设置于机臂102，用于为飞行器10提供飞行动力。定位装置105与控制组件104电连接，用于获取飞行器10的定位信号，以实现对飞行器10的实时定位，其中，控制组件104包括一个或多个处理器106，该定位装置105可以是GPS定位装置或北斗定位装置，在此不做限制。
控制组件104包括一个或多个处理器106。
可以理解，飞行器10还设置有传感器组件(图未示)，用于获取飞行器10飞行时的传感参数，以使控制组件104根据获取的传感数据及时获知飞行器10的飞行状态，以控制之电连接的控制动力组件103动作，从而实现飞行器10的飞行控制，其中传感器组件可以是陀螺仪、加速度计、压力传感器中 的一者或多者组合。
请参阅图2，图2为本发明提供的一种飞行器的避障方法，包括：
步骤S10：获取所述飞行器的当前位置信息。
在部分实施例中，飞行器设置有定位装置，所述获取飞行器的当前位置信息包括：
检测所述定位装置是否接收到定位信号；
若所述定位装置接收到所述定位信号，则利用所述定位信号获取所述飞行器的当前位置信息。
在部分实施例中，所述方法还包括：
若所述定位装置未接收到所述定位信号，则向终端设备发出位置请求；
接收终端设备发送响应所述位置请求发送的终端位置信息，并将所述终端位置信息作为所述飞行器的当前位置信息。
示例性地，需要使用飞行器10执行飞行任务时，开启飞行器10以使飞行器10，并利用设置于飞行器10上的定位装置105获取该飞行器10的当前位置信息，其中，该定位装置105可以但不限定为GPS定位装置。
步骤S11：向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通信连接的服务器获取与所述当前位置信息对应区域的三维地图。
飞行器10根据所获取的当前位置信息向与之通信连接的终端设备20发送三维地图请求，以使终端设备20响应该三维地图请求，向服务器30获取存储于服务器30且与该飞行器10当前位置对应的区域的三维地图，服务器30根据该三维地图请求，根据预设关系获取对应该三维地图请求区域的三维地图，并将该三维地图下发至终端设备20，以通过终端设备20发送给对应的飞行器10，该预设关系为当前位置信息与三维地图的对应关系。
示例性地，服务器30存储有A省的B、C、D、E等区域的三维地图，当飞行器10定位到其所在区域为A省的B区域时，则向终端设备20发送对应A省B区域的三维地图请求，终端设备20将该三维地图请求转发至服务器30，服务器30根据该三维地图请求获取对应的A省B区域的三维地图数据，并将对应A省B区域的三维地图数据下发至终端设备20，终端设备20接收到A省B区域的三维地图数据后，将该三维地图数据发送给飞行器10。
步骤S12：接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应区域的三维地图。
步骤S13：控制所述飞行器沿着预设的飞行航线飞行；
请参阅图3，部分实施例中，步骤S13包括：
步骤S131：接收所述终端设备发送的飞行航线信息，其中，所述飞行航线信息为所述终端设备根据用户的操控指令生成；
步骤S132：根据所述飞行航线信息获取所述飞行器的飞行航线；
步骤S133：控制所述飞行器沿着预设的飞行航线飞行。
如图4所示，示例性地，用户通过操控终端设备20设置飞行器10的飞行航线为A省B区域且起点为Q、终点为Z的飞行轨迹G，其中，飞行轨迹G可以是用户设定的轨迹，也可以是用户设置飞行起点Q和终点Z后，终端设备20根据预设关系自动生成的轨迹。终端设备20在接收到用户的确认指令后，将该飞行航线发送给飞行器10，以使飞行器10根据该飞行航线飞行。
步骤S14：根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值。
请参阅图5，在部分实施例中，步骤S14包括：
步骤S141：获取所述飞行器的飞行定位信息；
步骤S142：判断所述飞行器遇到的障碍物是否为所述三维地图上对应的障碍物；
步骤S143：若是，则根据所述飞行定位信息和所述三维地图获取所述飞行器与所述障碍物之间的距离；
步骤S144：判断所述距离是否小于所述距离阈值。
其中，判断所述飞行器遇到的障碍物是否为所述三维地图上对应的障碍物，具体可以为：
根据飞行器的飞行定位信息和飞行参数获取所述障碍物的第一位置信息；
判断第一位置信息与三维地图上对应的障碍物的第二位置信息是否匹配；
若匹配则判断所述障碍物为所述三维地图上对应的障碍物。
如图4所示，示例性地，飞行器10沿着预设的飞行轨迹G飞行，通过定位装置105实时获取该飞行器10的飞行时的飞行定位信息。飞行器10根据实时获取的行定位信息，获取该当前行定位信息在三维地图上所映射的实 时映射位置信息，当飞行器10遇到障碍物时，根据三维地图获取该障碍物的位置信息，判断该实时映射位置信息与该三维地图上的障碍物位置信息之间的距离是否小于距离阈值，从而可以判断飞行器10与所述障碍物之间的距离。
步骤S15：若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
示例性地，执行预设操作可以是控制飞行器10悬停、控制飞行器10向终端设备20发送提示信息、控制飞行器10进行避障飞行。
如图4所示，当飞行器10飞行到C点时，检测出飞行器10与三维地图上对应的障碍物m之间的距离小于设定的距离阈值，则控制飞行器10按照以预设轨迹n进行避障飞行。
在部分实施例中，所述飞行器设置有摄像装置，所述方法包括：
所述飞行器沿着所述飞行航线飞行时，控制所述摄像装置实时获取图像；
根据所述实时获取图像与预设飞行器图像获取拼合图像，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像；
将所述拼合图像发送给所述终端设备，以在所述终端设备实时显示。
在部分实施例中，所述飞行器设置有摄像装置，所述方法包括：
所述飞行器沿着所述飞行航线飞行时，控制所述摄像装置实时获取图像；
将所述实时获取图像发送给所述终端设备，以使所述终端设备根据所述实时获取图像与预设飞行器图像获取拼合图像并实时显示，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像。
示例性地，通过利用飞行器10实时获取飞行器10飞行过程中的图像，并将图像与预设的飞行器10图像拼合并发送给终端设备20，或将实时获取图像发送给终端设备20，以使终端设备20根据所述实时获取图像与预设飞行器图像获取拼合图像并实时显示，从而用户可以在终端设备20的显示屏上实时显示该飞行器10所处的自然环境，如图6所示。
请参阅图7，在部分实施例中，飞行器10还包括存储器107以及总线108。定位装置105、动力组件103以及存储器107通过总线108与处理器106电连接。
其中，存储器107至少包括一种类型的可读存储介质，所述可读存储介质包括闪存、硬盘、多媒体卡、卡型存储器(示例性地，SD或DX存储器等)、 磁性存储器、磁盘、光盘等。存储器107在一些实施例中可以是飞行器10的内部存储单元，示例性地该飞行器10的硬盘。存储器107在另一些实施例中也可以是飞行器10的外部存储设备，示例性地飞行器10上配备的插接式硬盘，智能存储卡(Smart Media Card,SMC)，安全数字(Secure Digital,SD)卡，闪存卡(Flash Card)等。
存储器107不仅可以用于存储安装于飞行器10的应用软件及各类数据，示例性地计算机可读程序的代码等，如避障程序，也即存储器107可以作为存储介质。
处理器106在一些实施例中可以是中央处理器(Central Processing Unit,CPU)、控制器、微控制器、微处理器或其他数据处理芯片，处理器106可调用存储器107中存储的程序代码或处理数据，实现前述的避障方法。
此外，本发明实施例还提出一种存储介质，所述存储介质为计算机可读存储介质，所述存储介质存储有可执行计算程序，所述可执行计算程序被执行时，实现前述的避障方法。
请参阅图8，本发明还提供一种飞行器40，该飞行器40与终端设备通信连接，该飞行器40包括：
位置获取模块401，用于获取所述飞行器的当前位置信息；
信息发送模块402，用于向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通信连接的服务器获取与所述当前位置信息对应区域的三维地图；
信息接收模块403，用于接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应的三维地图；
第一控制模块404，用于控制所述飞行器沿着预设的飞行航线飞行；距离检测模块405，用于根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值；
第二控制模块406，用于若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
在部分实施例中，飞行器40设置有定位装置，位置获取模块401还用于：
检测所述定位装置是否接收到定位信号；
若所述定位装置接收到所述定位信号，则利用所述定位信号获取所述飞行器的当前位置信息。
在部分实施例中，位置获取模块401还用于：
若所述定位装置未接收到所述定位信号，则向终端设备发出位置请求；
接收终端设备发送响应所述位置请求发送的终端位置信息，并将所述终端位置信息作为所述飞行器的当前位置信息。
在部分实施例中，第一控制模块404还用于：
接收所述终端设备发送的飞行航线信息，其中，所述飞行航线信息为所述终端设备根据用户的操控指令生成；
根据所述飞行航线信息获取所述飞行器的飞行航线；
控制所述飞行器沿着预设的飞行航线飞行。
在部分实施例中，距离检测模块405还用于：
获取所述飞行器的飞行定位信息；
判断所述飞行器遇到的障碍物是否为所述三维地图上对应的障碍物；
若是，则根据所述飞行定位信息和所述三维地图获取所述飞行器与所述障碍物之间的距离；
判断所述距离是否小于所述距离阈值。
在部分实施例中，飞行器40还包括图像处理模块(图未示)，图像处理模块用于当所述飞行器沿着所述飞行航线飞行时，控制设置于所述飞行器的摄像装置实时获取图像；
根据所述实时获取图像与预设飞行器图像获取拼合图像，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像；
将所述拼合图像发送给所述终端设备，以在所述终端设备实时显示。
在部分实施例中，所述图像处理模块还用于：
当所述飞行器沿着所述飞行航线飞行时，控制设置于所述飞行器的摄像装置实时获取图像；
将所述实时获取图像发送给所述终端设备，以使所述终端设备根据所述实时获取图像与预设飞行器图像获取拼合图像并实时显示，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像。
以上仅为本发明的优选实施例，并非因此限制本发明的保护范围，凡是 利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的保护范围内

Claims (10)

  1. 一种飞行器的避障方法，应用于飞行器，所述飞行器与终端设备通信连接，其特征在于，所述方法包括：
    获取所述飞行器的当前位置信息；
    向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通信连接的服务器获取与所述当前位置信息对应区域的三维地图；
    接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应的三维地图；
    控制所述飞行器沿着预设的飞行航线飞行；根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值；
    若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
  2. 如权利要求1所述的方法，其特征在于，所述飞行器设置有定位装置，所述获取飞行器的当前位置信息包括：
    检测所述定位装置是否接收到定位信号；
    若所述定位装置接收到所述定位信号，则利用所述定位信号获取所述飞行器的当前位置信息。
  3. 如权利要求1所述的方法，其特征在于，所述控制所述飞行器沿着预设的飞行航线飞行，包括：
    接收所述终端设备发送的飞行航线信息，其中，所述飞行航线信息为所述终端设备根据用户的操控指令生成；
    根据所述飞行航线信息获取所述飞行器的飞行航线；
    控制所述飞行器沿着预设的飞行航线飞行。
  4. 如权利要求1所述的方法，其特征在于，所述根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值，包括：
    获取所述飞行器的飞行定位信息；
    判断所述飞行器遇到的障碍物是否为所述三维地图上对应的障碍物；
    若是，则根据所述飞行定位信息和所述三维地图获取所述飞行器与所述障碍物之间的距离；
    判断所述距离是否小于所述距离阈值。
  5. 如权利要求1所述的方法，其特征在于，所述飞行器设置有摄像装置，所述方法包括：
    当所述飞行器沿着所述飞行航线飞行时，控制所述摄像装置实时获取图像；
    根据所述实时获取图像与预设飞行器图像获取拼合图像，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像；
    将所述拼合图像发送给所述终端设备，以在所述终端设备实时显示。
  6. 如权利要求1所述的方法，其特征在于，所述飞行器设置有摄像装置，所述方法包括：
    当所述飞行器沿着所述飞行航线飞行时，控制所述摄像装置实时获取图像；
    将所述实时获取图像发送给所述终端设备，以使所述终端设备根据所述实时获取图像与预设飞行器图像获取拼合图像并实时显示，其中，所述拼合图像为所述预设飞行器图像与所述实时获取图像的合成图像。
  7. 一种飞行器，其特征在于，所述飞行器包括：
    位置获取模块，用于获取所述飞行器的当前位置信息；
    信息发送模块，用于向所述终端设备发送三维地图请求，该三维地图请求中包括所述当前位置信息，以使所述终端设备根据所述当前位置信息向与所述终端设备通信连接的服务器获取与所述当前位置信息对应区域的三维地图；
    信息接收模块，用于接收所述终端设备响应所述三维地图请求发送的与所述当前位置信息对应的三维地图；
    第一控制模块，用于控制所述飞行器沿着预设的飞行航线飞行；距离检测模块，用于根据所述三维地图判断所述飞行器与障碍物之间的距离是否小于距离阈值；
    第二控制模块，用于若所述飞行器与所述障碍物之间的距离小于所述距离阈值，则控制所述飞行器执行预设操作。
  8. 一种飞行器，所述飞行器与终端设备通信连接，所述终端设备与服务器通信连接，其特征在于，所述飞行器包括：
    机身；
    机臂，与所述机身相连；
    动力组件，设于所述机臂，用于给所述飞行器提供飞行的动力；
    存储器，用于存储计算机可执行的避障程序；及
    处理器，用于调取存储在所述存储器中的可执行的避障程序，以执行如权利要求1-6任一项所述的避障方法。
  9. 一种飞行系统，所述飞行系统包括飞行器、与所述飞行器通信连接的终端设备以及与所述终端设备通信连接的服务器，其特征在于，所述飞行器包括：
    机身；
    机臂，与所述机身相连；
    动力组件，设于所述机臂，用于给所述飞行器提供飞行的动力；
    存储器，用于存储计算机可执行的避障程序；及
    处理器，用于调取存储在所述存储器中的可执行的避障程序，以执行如权利要求1-6任一项所述的避障方法。
  10. 一种存储介质，其特征在于：所述存储介质存储有可执行计算程序，所述可执行计算程序被计算机被执行时，实现如权利要求1-6任一项所述的避障方法。
PCT/CN2020/122912 2019-10-22 2020-10-22 一种飞行器的避障方法、飞行器、飞行系统及存储介质 WO2021078203A1 (zh)

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