Unmanned aerial vehicle flight environment display system

Abstract

The invention belongs to the technical field of unmanned aerial vehicle design, and discloses an unmanned aerial vehicle flight environment display system which comprises an airborne camera, an unmanned aerial vehicle position and attitude sensor, an airborne data transmission module, a ground data transmission module, a ground video analysis module, a map module and a display module which are mutually crosslinked. According to the invention, the airborne camera is used for collecting the video information of the surrounding environment of the aircraft, the map module is used for loading the three-dimensional topographic information, and the video information is used in a short distance and the three-dimensional topographic information is used in a long distance through switching.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aircraft design, and in particular relates to a flight environment display system for an unmanned aircraft. Background Art

[0002] With the development of large-scale cargo drones, there is a need for mission systems that do not require real-time remote monitoring. The production and operation of drones have increasingly higher requirements for economic efficiency, while the cost of large-volume satellite communications is relatively high, so there is room for optimization.

[0003] On the other hand, the development of map technology has enabled some maps to load three-dimensional terrain information, which provides conditions for the use of virtual flight environments by drones. Summary of the invention

[0004] In view of the problems of the background technology, the present invention proposes a UAV flight environment display system, which can support the UAV to remotely observe the surrounding terrain information and ensure flight safety by switching between real video views and generated three-dimensional views.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A UAV flight environment display system, comprising: an interconnected airborne camera, a UAV position and attitude sensor, an airborne data transmission module, a ground data transmission module, a ground video analysis module, a map module, and a display module;

[0007] The onboard camera is used to collect information about the environment around the drone and transmit it in the form of video or picture. The onboard camera sends the collected information to the onboard data transmission module;

[0008] The drone position and attitude sensor is used to measure the current position, attitude and heading information of the drone, and send the information to the airborne data transmission module;

[0009] The airborne data transmission module receives the video or image information sent by the airborne camera and the position information, attitude and heading information sent by the drone position and attitude sensor, and forwards it to the ground data transmission module;

[0010] The ground data transmission module receives the video or image information, position information, attitude information, and heading information sent by the airborne data transmission module, sends the video or image information to the ground video analysis module, and sends the position information, attitude information, and heading information to the map module;

[0011] The ground video analysis module receives and analyzes the video information sent by the ground data transmission module, and sends the analyzed video images to the display module for display;

[0012] The map module receives the position information, attitude information and heading information sent by the ground data transmission module, loads the three-dimensional terrain information of the location of the UAV, sets the viewing angle in the three-dimensional terrain according to the attitude and heading information of the UAV, and sends it to the display module for display;

[0013] The display module receives the video images sent by the ground video analysis module and the three-dimensional terrain images sent by the map module for display.

[0014] As a further solution of the present invention: the display module has a switch for switching to three-dimensional map display, which can be used to manually switch the display, or it can automatically switch the display according to the communication distance or video signal status by receiving the drone position information sent by the ground data transmission module.

[0015] As a further solution of the present invention: the drone position and attitude sensor can be one sensor or two independent sensors that respectively measure the drone's position information and attitude heading information.

[0016] As a further solution of the present invention: the airborne camera is installed at the front of the aircraft to collect the flight environment in front of the aircraft, and the camera transmits data in video format to the airborne data transmission module.

[0017] As a further solution of the present invention: the airborne data transmission module is composed of a data link with an effective range of 100km and an airborne end of a satellite communication system. The data link can transmit both data information and video information within a range of 100km, and the satellite communication system is only used for data transmission exceeding 100km.

[0018] As a further solution of the present invention: the ground data transmission module is composed of a data link with an effective range of 100km and a ground end of a satellite communication system.

[0019] As a further solution of the present invention: the map module is composed of a set of map software capable of loading three-dimensional terrain information and aircraft perspective processing software.

[0020] As a further solution of the present invention: the display module includes a switching switch and / or a display switching software; the display module uses the switching switch or the display switching software to switch between the video screen and the three-dimensional terrain display screen.

[0021] As a further solution of the present invention: the switching logic in the display switching software can use the video screen status information for judgment. If there is no video screen information at present, the three-dimensional terrain display screen is displayed; if there is video screen information, the video screen is displayed.

[0022] As a further solution of the present invention: the switching logic in the display switching software can also be judged by the current position of the drone, and the display module receives the position information sent by the ground data transmission module for distance judgment. When the distance exceeds a certain threshold, the video screen is switched to the three-dimensional terrain display screen; when the distance is less than the threshold, the video screen is displayed.

[0023] The beneficial effects of this application are:

[0024] 1. When UAVs fly long distances, they can use three-dimensional terrain information for display, ensuring the safety of the aircraft and saving the cost of using the UAV.

[0025] 2. When the drone is flying, taking off, or landing at close range, it can use real-time video to observe the surrounding flight environment.

[0026] The present application is further described in detail below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the architecture of the UAV flight environment display system of the present invention. DETAILED DESCRIPTION

[0028] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments.

[0029] See attached Figure 1 ,This embodiment is a UAV flight environment display system that is composed of an ,interconnected airborne camera, a UAV position and attitude sensor, an airborne data transmission module, a ground ,data transmission module, a ground video parsing module, a map module and a display module.

[0030] The onboard camera is installed at the front of the aircraft to collect the flight environment in front of the aircraft. The camera transmits data in video format to the onboard data transmission module.

[0031] The drone position and attitude sensor uses a combined inertial navigation system that can measure the aircraft's latitude and longitude position information, altitude position information, attitude information, and heading information, and output it to the onboard data transmission module.

[0032] The airborne data transmission module consists of a data link with a range of 100km and the airborne end of the satellite communication system. The data link can transmit both data information and video information within a range of 100km, and the satellite communication system is only used for data transmission over 100km. The airborne data transmission module sends the information received from the airborne camera and the drone's position and attitude sensor to the ground data transmission module.

[0033] The ground data transmission module consists of a data link with a range of 100km and the ground end of the satellite communication system. The ground data transmission module receives the video or image information, position information, and attitude information sent by the airborne data transmission module, sends the video or image information to the ground video display module, and sends the position information and attitude information to the map module.

[0034] The ground video analysis module uses a set of video analysis software. After the ground video display module receives the video information sent by the ground data transmission module, it analyzes the data through the video analysis software and sends it to the display module for display.

[0035] The map module consists of a set of map software that can load three-dimensional terrain information and aircraft perspective processing software. The map module receives the position information and attitude information sent by the ground data transmission module. The map software loads the three-dimensional terrain information near the current position of the aircraft according to the aircraft position information. The aircraft perspective processing software sets the display perspective of the three-dimensional terrain according to the altitude position information, attitude information and heading information of the drone. The map module sends the three-dimensional terrain display screen with the adjusted perspective to the display module for display.

[0036] The display module includes a switching switch and / or a display switching software. The display module receives the video screen sent by the ground video analysis module and receives the three-dimensional terrain display screen sent by the map module. The display module uses a switching switch or display switching software to switch between the video screen and the three-dimensional terrain display screen. The switching logic in the display switching software can use the video screen status information for judgment. If there is no video screen information at present, the three-dimensional terrain display screen is displayed; if there is video screen information, the video screen is displayed. The switching logic in the display switching software can also use the current position of the drone for judgment. At this time, the display module receives the position information sent by the ground data transmission module for distance judgment. When the distance exceeds a certain threshold, the video screen is switched to the three-dimensional terrain display screen; when the distance is less than the threshold, the video screen is displayed.

[0037] So far, the purpose of the present invention has been achieved.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A UAV flight environment display system, characterized in that: include: Interconnected airborne cameras, drone position and attitude sensors, airborne data transmission modules, ground data transmission modules, ground video analysis modules, map modules, and display modules; The onboard camera is used to collect information about the environment around the drone and transmit it in the form of video or picture. The onboard camera sends the collected information to the onboard data transmission module; The drone position and attitude sensor is used to measure the current position, attitude and heading information of the drone, and send the information to the airborne data transmission module; The airborne data transmission module receives the video or image information sent by the airborne camera and the position information, attitude and heading information sent by the drone position and attitude sensor, and forwards it to the ground data transmission module; The ground data transmission module receives the video or image information, position information, attitude information, and heading information sent by the airborne data transmission module, sends the video or image information to the ground video analysis module, and sends the position information, attitude information, and heading information to the map module; The ground video analysis module receives and analyzes the video information sent by the ground data transmission module, and sends the analyzed video images to the display module for display; The map module receives the position information, attitude information and heading information sent by the ground data transmission module, loads the three-dimensional terrain information of the location of the UAV, sets the viewing angle in the three-dimensional terrain according to the attitude and heading information of the UAV, and sends it to the display module for display; The display module receives the video images sent by the ground video analysis module and the three-dimensional terrain images sent by the map module for display.

2. The UAV flight environment display system according to claim 1, characterized in that: The display module has a switch for switching to three-dimensional map display, which can be used to manually switch the display, or automatically switch the display according to the communication distance or video signal status by receiving the drone position information sent by the ground data transmission module.

3. The UAV flight environment display system according to claim 2, characterized in that: The drone position and attitude sensor can be one sensor or two independent sensors that measure the drone's position information and attitude heading information respectively.

4. The UAV flight environment display system according to claim 3, characterized in that: The airborne camera is installed at the front of the aircraft and is used to collect the flight environment in front of the aircraft. The camera transmits data in a video format to the airborne data transmission module.

5. The UAV flight environment display system according to claim 4, characterized in that: The airborne data transmission module consists of a data link with a range of 100 km and an airborne end of a satellite communication system. The data link can transmit both data information and video information within a range of 100 km, and the satellite communication system is only used for data transmission exceeding 100 km.

6. The UAV flight environment display system according to claim 5, characterized in that: The ground data transmission module is composed of a data link with a working range of 100 km and a ground end of a satellite communication system.

7. The UAV flight environment display system according to claim 6, characterized in that: The map module is composed of a set of map software capable of loading three-dimensional terrain information and aircraft viewing angle processing software.

8. The UAV flight environment display system according to claim 7, characterized in that: The display module includes a switching switch and / or a display switching software; the display module uses the switching switch or the display switching software to switch between the video image and the three-dimensional terrain display image.

9. The UAV flight environment display system according to claim 8, characterized in that: The switching logic in the display switching software can be judged by using the video screen status information. If there is no video screen information, the three-dimensional terrain display screen is displayed; if there is video screen information, the video screen is displayed.

10. The UAV flight environment display system according to claim 8, characterized in that: The switching logic in the display switching software can also be judged by the current position of the drone. The display module receives the position information sent by the ground data transmission module for distance judgment. When the distance exceeds a certain threshold, the video screen is switched to the three-dimensional terrain display screen; when the distance is less than the threshold, the video screen is displayed.

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