CN106851203B - Device and method for monitoring parachute opening condition of unmanned aerial vehicle - Google Patents
Device and method for monitoring parachute opening condition of unmanned aerial vehicle Download PDFInfo
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- CN106851203B CN106851203B CN201710080378.0A CN201710080378A CN106851203B CN 106851203 B CN106851203 B CN 106851203B CN 201710080378 A CN201710080378 A CN 201710080378A CN 106851203 B CN106851203 B CN 106851203B
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Abstract
本发明公开了一种监测无人机开伞情况的装置，所述的装置包括后视摄像头、视频切换器、机载数据终端以及地面数据终端，所述的后视摄像头、视频切换器以及机载数据终端依次顺序连接；所述的视频切换器还连接有机载任务设备；所述的后视摄像头、视频切换器通过视频传输线连接；本发明还公开了一种监测无人机开伞情况的监测方法；本发明均由通用元件构成，成本低廉、安装方便可在机载任务设备图像和后视摄像头图像之间根据关心内容实时切换，实现对无人机开伞状况、伞带情况及落地情况等进行实时监测，提高无人机飞行的安全性。
The invention discloses a device for monitoring the opening of an unmanned aerial vehicle. The device includes a rear-view camera, a video switcher, an airborne data terminal and a ground data terminal. The onboard data terminals are connected in sequence; the video switcher is also connected with the onboard mission equipment; the rear-view camera and the video switcher are connected through a video transmission line; the invention also discloses a monitoring drone umbrella opening condition The monitoring method is based on the monitoring method; the invention is all composed of general components, has low cost and is easy to install, and can switch in real time between the image of the airborne mission equipment and the image of the rear-view camera according to the content of interest, so as to realize the status of the UAV's umbrella opening, umbrella belt status and Real-time monitoring of landing conditions, etc., to improve the safety of drone flight.
Description
Technical Field
The invention belongs to the field of monitoring device design, and particularly relates to a device and a method for monitoring parachute opening conditions of an unmanned aerial vehicle.
Background
At present, many types of small and medium-sized unmanned aerial vehicles adopt a parachuting recovery mode, but in practical application, as airborne task equipment is of a forward-looking or hanging cabin type, the parachute opening condition of the unmanned aerial vehicle cannot be monitored in real time, and therefore a series of potential safety hazards can be brought. For example, in the flight process, the parachute is accidentally opened, the parachute opening instruction is sent but the parachute opening condition cannot be confirmed, the parachute is not timely thrown after the unmanned aerial vehicle lands, the hidden dangers can cause damage to the unmanned aerial vehicle in different degrees, and even the safety of personnel can be endangered in serious situations.
Therefore, for the security that improves unmanned aerial vehicle flight, the technique of monitoring is carried out parachute opening condition to parachuting unmanned aerial vehicle.
Disclosure of Invention
The invention provides a device and a method for monitoring the parachute opening condition of an unmanned aerial vehicle, aiming at the problems in the prior art.
The device comprises a rearview camera, a video switcher, an airborne data terminal and a ground data terminal, wherein the rearview camera, the video switcher and the airborne data terminal are sequentially connected; the video switcher is also connected with airborne task equipment; the rear-view camera and the video switcher are connected through a video transmission line; the video switcher is mainly used for switching the scout image of the task equipment and the monitoring image of the rear-view camera in real time according to the instruction of an operator; the video transmission line is mainly used for transmitting the camera monitoring image to the onboard data terminal; the monitoring images are obtained through the rearview camera, the reconnaissance images are obtained through the airborne task equipment, when monitoring is needed, the ground data terminal sends a switching instruction to the airborne data terminal, the airborne data terminal is mainly used for downloading remote measuring information and images, receiving a remote control instruction, and switching between the images of the airborne task equipment and the images of the rearview camera in real time according to concerned contents.
Further, the device also comprises a power supply conversion box; one end of the power supply conversion box is connected with the rear-view camera, and the other end of the power supply conversion box is connected with the power supply plug of the emergency bus bar through the power supply adapter socket; the power supply conversion box converts the 27V direct current into 12V direct current, and the power supply conversion box and the video transmission line can transmit the monitoring image to the video switcher; the camera power supply and signal transmission requirements are met.
Further, the rearview camera is glued to the bottom of the antenna housing of the unmanned aerial vehicle; the purpose of gluing to the radome bottom is not to affect the aerodynamic performance of the drone.
The invention also discloses a monitoring method for monitoring the parachute opening condition of the unmanned aerial vehicle, which comprises the following specific steps:
1) the rearview camera monitors the parachute opening condition of the unmanned aerial vehicle in real time and outputs a monitoring image; a rearview camera is additionally arranged on the unmanned aerial vehicle, so that the parachute opening condition of the unmanned aerial vehicle can be monitored in real time;
2) outputting the monitoring image to a video switcher through a video transmission line;
3) the ground data terminal sends a switching instruction to the airborne data terminal, and the airborne data terminal forwards the switching instruction to the video switcher, so that the real-time switching between the airborne task equipment reconnaissance image and the rear-view camera monitoring image is realized, and the monitoring is implemented.
Compared with the prior art, the invention has the beneficial effects that:
(1) the rear-view camera is mounted at the bottom end of the antenna housing, and is opened in the whole process during flying to output standard PAL system images so as to complete the monitoring function of the parachute opening condition of the unmanned aerial vehicle;
(2) one end of a video transmission line is connected with an output terminal of the rear-view camera, and the other end of the video transmission line is connected with a video switcher, so that the transmission function of the monitoring image is completed;
(3) the ground data terminal sends a switching instruction to the airborne data terminal, and the airborne data terminal forwards the switching instruction to the video switcher, so that the real-time switching between the scout image and the monitoring image of the task equipment is realized;
(4) the invention is composed of general elements, has low cost, convenient installation, simple circuit and convenient operation, can be applied to all parachute landing unmanned aerial vehicles, takes a common camera as a core, is assisted by a general video switcher and a power supply conversion module, can switch between an onboard mission equipment image and a rearview camera image in real time according to concerned contents, realizes real-time monitoring on parachute opening conditions, parachute belt conditions, landing conditions and the like of the unmanned aerial vehicles, and improves the flight safety of the unmanned aerial vehicles.
Drawings
Fig. 1 is a block diagram of a monitoring device for monitoring the parachute opening condition of an unmanned aerial vehicle and a monitoring method according to the present invention;
FIG. 2 is a schematic diagram of a power supply switching box of a monitoring device for monitoring the parachute opening condition of an unmanned aerial vehicle and a monitoring method of the invention;
FIG. 3 is a schematic view of a rear view camera installation of the device and the method for monitoring the parachute opening condition of the unmanned aerial vehicle;
the system comprises a power supply conversion box 1, a rear-view camera 2, a video transmission line 3, an onboard task device 4, a video switcher 5, an onboard data terminal 6, a ground data terminal 7, an antenna housing 8 and an emergency bus bar power supply plug 9.
Detailed Description
The invention provides a device and a method for monitoring the parachute opening condition of an unmanned aerial vehicle, and further detailed description is given for the purpose, the technical scheme and the effect of the invention with reference to the attached drawings and examples. It should be noted that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the device for monitoring the parachute opening condition of the unmanned aerial vehicle of the invention comprises a rearview camera 2, a video switcher 5, an airborne data terminal 6 and a ground data terminal 7, wherein the rearview camera 2, the video switcher 5 and the airborne data terminal 6 are sequentially connected, as shown in fig. 1, an arrow points to the input of a block module in a block, and the output of the block module is outward; the video switcher 5 is also connected with airborne task equipment 4, and scout images are obtained through the airborne task equipment 4; the rearview camera 2 and the video switcher 5 are connected through the video transmission line 3, the video transmission line 3 is mainly used for transmitting monitoring images of the rearview camera 2 to the airborne data terminal 6, and the airborne data terminal 6 is mainly used for receiving remote control instructions and downloading remote measurement data and images. The ground data terminal 7 sends a switching instruction to the airborne data terminal 6, and the airborne data terminal 6 forwards the switching instruction to the video switcher 5, so that the real-time switching between the task equipment scout image and the monitoring image is realized. One end of the power supply conversion box 1 is connected with the rearview camera 2, and the other end of the power supply conversion box is connected with an emergency bus bar power supply plug 9 through a power supply adapter socket. One end of the video transmission line 3 is connected with the output terminal of the rear-view camera 2 through a video terminal, and the other end of the video transmission line is connected with the video switcher 5 through an SMA terminal, so that the monitoring image transmission function is completed.
As shown in fig. 2, the power conversion box 1 of the present invention includes a power conversion chip and an auxiliary circuit; the power supply conversion box 1 takes W12-24S12 as a core and is assisted by an auxiliary circuit; converting the 27V direct current into 12V direct current; the input voltage is 24-30 VDC, the output voltage is 12VDC, the output current is 1A, and the power supply requirement of the camera can be metThe combination of the designed power conversion box 1 and the video transmission line 3 can transmit the monitoring image to the video switcher 5; the camera power supply and signal transmission requirements are met. In this embodiment, the positive line of the onboard power supply is connected to the +27V terminal of the power conversion box 1, and the ground line of the onboard power supply is connected to GND of the power conversion box 1inThe +12V terminal of the power supply conversion box 1 is connected with the power supply positive line of the rearview camera 2; GND of power supply conversion box 1outThe terminal is connected with 2 power ground wires of back vision camera, can convert 27V DC power supply into the required 12V DC power supply of back vision camera 2, accomplishes back vision camera power supply function.
As shown in fig. 3, back vision camera 2 glue in unmanned aerial vehicle antenna house bottom, through boring in unmanned aerial vehicle antenna house bottom, the back vision camera is installed in trailing edge drilling position to glue with the AB and bond, solidification ten minutes can, this mounted position does not influence unmanned aerial vehicle's aerodynamic performance.
The invention discloses a monitoring method for monitoring parachute opening conditions of an unmanned aerial vehicle, which specifically comprises the following steps:
1) firstly, looking at the camera 2 in sequence to monitor the parachute opening condition of the unmanned aerial vehicle in real time and output a monitoring image; output image format: PAL system, image resolution: >480 TVL;
2) converting the 27V direct current into 12V direct current through the power conversion box 1; the input voltage is 24-30 VDC, the output voltage is 12VDC, the output current is 1A, and the camera power supply is met; outputting the monitoring image to a video switcher 5 through a video transmission line 3 to complete signal transmission;
3) the ground data terminal 7 sends a switching instruction to the airborne data terminal 6, the airborne data terminal 6 mainly receives a remote control instruction, downloads telemetering data and images and forwards the telemetering data and images to the video switcher 5, and real-time switching between the scout images of the airborne task equipment 4 and the monitoring images of the rearview camera 2 is achieved, so that monitoring is implemented.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
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| CN201710080378.0A CN106851203B (en) | 2017-02-15 | 2017-02-15 | Device and method for monitoring parachute opening condition of unmanned aerial vehicle |
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| CN201710080378.0A CN106851203B (en) | 2017-02-15 | 2017-02-15 | Device and method for monitoring parachute opening condition of unmanned aerial vehicle |
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| CN106851203A CN106851203A (en) | 2017-06-13 |
| CN106851203B true CN106851203B (en) | 2020-04-07 |
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