RU2779020C1 - Aircraft platform - Google Patents

Abstract

FIELD: aviation technology.

SUBSTANCE: invention relates to take-off and landing platforms for tethered unmanned aerial vehicles. The aircraft platform is made in the form of a container and includes a take-off and landing platform, a device for laying cable, a conducting wire and an electrical supply system. The take-off and landing platform consists of a base (5) and a frame (6) that extends horizontally. A landing pad and a cover (9) are installed on the frame, arranged vertically, with seals along the contour, having a hole for conductive wire supply.

EFFECT: increased protection from environmental influences is achieved.

4 cl, 3 dwg

Description

The invention relates to takeoff and landing platforms for tethered unmanned aerial vehicles (UAVs), and can be used in mobile or stationary installations for various applications, including as an embedded solution.

Known take-off and landing platform for unmanned aerial vehicles [RU 199914] containing a box-shaped rectangular body, configured to deploy over its protective shelter with the function of opening and closing, as well as means for attaching the body to the carrier frame, mounted on a mobile vehicle, the bottom of the box-shaped body is provided with ArUco precision fit markers in the form of rectangular stickers.

The disadvantage of this technical solution is the low protection of the device from external influencing factors, due to the design of the protective shelter, the low reliability of the precision landing system based on machine vision due to the possibility of pollution, cover with snow, foliage, etc. Precision landing markers, low automation of the deployment process, the impossibility of prompt dismantling from the vehicle and mounted on the vehicle for offline use without a vehicle.

Known launch container [RU 2678381], which consists of a body with a hinged hatch, and a launch platform located inside the body. The container body is made with a pitched roof, the opening hatch is synchronized with the launch platform, which is located in the main compartment of the container body and is made in the form of two platforms: upper and lower, the upper platform extends over the lower one and has the shape of a lattice, a block is located in the mounting compartment of the container body power and control. Supports are made at the corners of the container body, and a tracking antenna is additionally installed on the pitched roof of the container body for receiving information from the UAV and a heating system for dumping snow and protecting it from icing. The launch platform of the container is additionally equipped with a precision landing device, and the container is additionally equipped with a climate control system. This analogue is not intended for use with tethered UAVs.

The disadvantages of this technical solution are:

- short duration of UAV flight limited by the capacity of batteries;

- low payload UAV.

Known is the closest analogue of a mobile robotic complex based on a tethered high-altitude unmanned platform "Albatros" [http://bastion-karpenko.ru/albatros-mmrtk-bla/], which consists of a container mounted on a car chassis containing a take-off and landing platform, Multi-rotor UAV, cable layer, power supply system. The container contains a roof, which, when deployed, moves forward, opening the interior of the container, after which the runway platform rises to the level of the roof, forming a landing area.

The disadvantage of the closest technical solution is the low reliability and security of the device from external influencing factors due to the fact that the roof is open during the flight of the UAV.

The claimed invention is an aerial platform which is a system for storage, takeoff, landing, control and power supply of unmanned aerial vehicles.

The technical result achieved by the proposed invention is to increase the protection from environmental influences and reliability.

The technical result is achieved due to the fact that the air platform contains:

- takeoff and landing platform, which consists of a base and a frame. The frame slides out of the container horizontally. The cover of the container opening is vertically fixed on the frame. The lid is equipped with seals along the contour and is fixed in such a way that when the frame is fully extended, the lid adjoins the opening and protects the inner space of the container from precipitation, dust and drafts. The cover has a hole for the cable-rope, which is closed with a brush seal. Also, the lid is equipped with visors, which provide protection from atmospheric precipitation of the opening for the cable-rope and the lower part of the opening of the container. The use of a container opening cover increases security and reliability;

- a landing pad is attached to the frame, which is a lattice structure, due to which the “air cushion” effect is not formed during the landing of the UAV, in addition, the air flow created by the UAV blows away snow, foliage and dirt if they are on the landing site. This ensures the safety of planting and the exclusion of snow, leaves and dirt from entering the container.

Brief description of the drawings

Figure 1 shows a General view of the air platform in the working position.

Figure 2 shows a General view of the air platform with extended landing pad (container wall is not shown).

Figure 3 shows a view of the extended landing pad and cover of the opening of the container.

The air platform contains a container 1. The container has a runway platform 2 for takeoff and landing of the UAV 3 connected to the ground part by a cable-cable 4.

The landing platform includes a base 5 and a frame 6. A landing pad 7 is installed on the frame 6. The frame with the landing pad is extended using a gear motor 8 by means of a rack-and-pinion transmission.

The cover of the container opening 9 is installed on the frame. The cover is equipped with seals 10 along the contour and is fixed in such a way that, with the landing platform fully extended, the opening cover fits snugly against the container opening with the container door open. In the cover of the opening of the container, there is a hole 11 for the cable-rope, which is closed with brush seals 12, which protect against drafts and dust ingress. Also, the cover of the container opening is equipped with visors 13, which provide protection from atmospheric precipitation of the hole for the cable-rope and the lower part of the container opening.

To ensure the operability of all air platform systems at high values of negative ambient temperatures, the container can be additionally equipped with an autonomous heater. In conjunction with the cover of the container opening, which provides protection from atmospheric precipitation, dust and drafts, pre-heating is provided and the temperature inside the container is maintained suitable for stable operation of the equipment.

An automated cable layer 14 is mounted on a retractable frame. The cable layer is located behind the opening cover, and the cable-rope passes through the hole, which is closed with brush seals, thus the automated cable layer is protected from external influencing factors. During operation, when the UAV is in the air, the power to the UAV and the payload is continuously supplied through the cable from the power supply system.

The proposed invention allows to achieve a technical result due to the following:

- the cover of the container opening, fixed on the retractable frame, provides improved protection of the product from external influencing factors when the landing site is extended, when the UAV is in the air;

- landing platform, which has the shape of a lattice, ensures the safety and reliability of landing, as well as the exclusion of snow, leaves and dirt from entering the container.

The work of the air platform is as follows.

To start work, the power supply system is turned on. Next, you need to open the door of the container, and then the operator from the control panel gives a command to extend the frame 6 with the landing pad 7. The motor-reducer 8 pushes the landing pad to full speed, until the limit switch of the open position is activated. The position of the limit switch is set in such a way that the cover of the container opening 9, with the landing pad fully extended, is firmly pressed against the container wall and closes the container opening.

UAV 3 is installed on the landing site, to which cable-cable 4 is connected, laid on an automated cable layer 14. The cable layer is located behind the cover of the container opening, and the cable-cable passes through the hole closed by brush seals 12.

At the command of the operator, the UAV takes off to the required height and the UAV switches to the automatic mode of holding the altitude and coordinates. The cable layer performs unwinding during the takeoff of the cable-rope on commands from the automated control system, which makes decisions based on the readings of the cable tension sensor mounted on the retractable frame. In the mode of holding the height and coordinates, the cable layer automatically maintains the necessary tension of the cable-rope so that the latter does not sag or get tangled.

The cable-rope continuously supplies power to the motors of the UAV, as well as charging the backup batteries of the UAV, which, in the event of a power failure, will provide an emergency landing. In addition, the cable-rope provides power to the payload and data transmission if necessary.

Upon completion of work, the operator gives a command to land and the UAV lands on the landing site in automatic mode. At the same time, the cable layer automatically winds the cable rope. After that, at the command of the operator, the landing pad slides into the container until the limit switch of the closed position is activated. The container door is closed, the power supply system is turned off.

Claims (4)

1. The air platform, made in the form of a container, includes a runway platform, a cable layer, a cable-rope, a power supply system, characterized in that the runway platform consists of a base and a horizontally extendable frame, a landing pad is installed on the frame and a cover located vertically, with seals along the contour, having a hole for feeding the cable-rope. 2. Air platform according to claim 1, characterized in that the hole in the lid is closed with a brush seal. 3. Aeroplatform according to paragraphs. 1, 2, characterized in that visors are installed above the opening for feeding the cable-rope and the lower part of the opening of the container. 4. Aeroplatform according to paragraphs. 1-3, characterized in that the landing site is made of a lattice shape.

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