CN114684367A - Unmanned aerial vehicle accurate spraying technology for military special environment - Google Patents

Abstract

The invention discloses an unmanned aerial vehicle accurate spraying technology for military special environment, which comprises the following steps: unmanned aerial vehicle, spraying jar, control system. Unmanned aerial vehicle adopts carbon fibre and aviation aluminium system fuselage to the lithium cell is power, and through the viscosity and the content of optimizing coating in the spraying jar and compressed gas's pressure, makes the unmanned aerial vehicle spraying more even, and can spout the coating in the spraying jar completely, reduce extravagantly, and the workman only need stand and just can realize the high altitude spraying at subaerial operation control system, and factor of safety is higher.

Description

A precise spraying technology for unmanned aerial vehicles in military special environment

technical field

The invention relates to an unmanned aerial vehicle spraying technology, which is mainly applied to the spraying field of water-based paints.

Background technique

UAV is an unmanned aerial vehicle that is remotely controlled by the operator through radio signal transmission combined with its own control program. Safety factor, better suited for handling dangerous, dirty tasks. In the past, the spraying of many tall buildings, bridges, and ships required workers to build scaffolding to spray the paint by themselves. Due to the complex environment, workers were more dangerous when working.

Applying drone technology to the field of spraying, because the fixed spraying program is set in the drone, the spraying will be more uniform, and the close contact between the worker and the paint is avoided, which is more conducive to the health of the worker, and the worker only needs to be on the ground The drone is controlled by the control system for spraying, without the need for workers to work at high altitudes, and the safety factor is greatly improved. However, because the drone operates at high altitude, the air flow speed is relatively large, and it is a big problem for the drone and paint spraying. Therefore, the application has invented a drone spraying technology, which can still be maintained under the wind of level 7. Better spraying effect.

SUMMARY OF THE INVENTION

In order to solve the problems that the mouth of the spraying tank is easily blocked, the spraying pressure is insufficient, the viscosity of the coating decreases, and the wind force is greatly affected during the spraying process of the drone, the first aspect of the present invention provides a spraying technology for the drone, including: no A man-machine, a spraying tank, and a control system, the spraying tank is connected with the UAV through a rotating disc, the nozzle of the spraying tank faces the outside of the UAV, and the control system includes a radar detector, a panoramic monitor, and a ground control panel.

As a preferred embodiment, the drone is a carbon fiber and aviation aluminum body, powered by a lithium battery.

As a preferred embodiment, the capacity of the spraying tank is 200-300CC.

As a preferred embodiment, the outer cavity of the spray can is filled with compressed nitrogen or compressed carbon dioxide.

As a preferred embodiment, the pressure of the outer cavity of the spraying tank is 5-20 kg.

As a preferred embodiment, the paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 50-100P at 23±2°C.

As a preferred embodiment, the paint filled in the spraying tank is filtered through a 100-250 mesh filter screen.

As a preferred embodiment, the weight of the paint in the spray can is 100-200 grams.

As a preferred embodiment, 4-8 spraying cans are connected below the drone.

The second aspect of the present invention provides the application of a drone spraying technology, which is applied to wood spraying, billboard spraying, high-rise spraying, bridge spraying, ship spraying, cable spraying and the like.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The unmanned aerial vehicle spraying technology of the present invention only requires operators to stand on the ground to control the unmanned aerial vehicle for spraying, which avoids the danger of high-altitude operations, especially in the military special environment, without the need for personnel to perform high-altitude operations in person, increasing the concealment.

(2) The drone spraying technology of the present invention changes the traditional spraying method that requires manual contact with the paint, does not require workers to directly contact the paint, reduces the harm of the paint to the human body, and is safer and more environmentally friendly.

(3) The drone spraying technology of the present invention controls the pressure of the compressed gas in the spraying tank and combines with a reasonable choice of paint viscosity, so that the paint in the spraying tank can be completely sprayed and waste is reduced.

(4) The drone spraying technology of the present invention uses 4-8 spraying cans, and multiple spraying cans can be sprayed at the same time to make the spraying more uniform, and it can also be sprayed in turn to increase the spraying amount.

(5) The UAV spraying technology of the present invention can make the UAV spraying technology still under relatively large wind conditions by reasonably setting the pressure of the spraying tank, the viscosity of the paint, the particle size of the paint and the wind resistance performance of the UAV. Maintain a good spray effect, the paint is sprayed evenly, and there will be no sagging after spraying.

Detailed ways

In order to solve the above problems, the first aspect of the present invention provides a precise spraying technology for unmanned aerial vehicles for military special environments, including: unmanned aerial vehicles, spraying cans, and a control system. It is connected to the drone, and the nozzle of the spraying tank faces the outside of the drone. The control system includes a radar detector, a panoramic monitor, and a ground control panel.

As a preferred embodiment, the drone is a carbon fiber and aviation aluminum body, powered by a lithium battery.

As a preferred embodiment, the capacity of the spraying tank is 200-300CC.

The applicant has researched and found that the paint with a capacity of 200-300CC is stored in the spray tank, and combined with the pressure of the outer cavity of the spray tank, the paint in the spray tank can be sprayed at one time, which can reduce waste. In addition, the coating in the spraying can in the present application is more suitable for one-time use, and can produce better spraying effect.

As a preferred embodiment, the outer cavity of the spray can is filled with compressed nitrogen or compressed carbon dioxide.

As a preferred embodiment, the pressure of the outer cavity of the spraying tank is 5-20 kg.

As a preferred embodiment, the on-off valve of the spray can is connected to the drone.

As a preferred embodiment, the paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 50-100P at 23±2°C.

As a preferred embodiment, the paint filled in the spraying tank is filtered through a 100-250 mesh filter screen.

The applicant found that when the viscosity of the paint in the spray tank is 50-100P and the particle size is 100-250 mesh, the paint can be sprayed with better uniformity, and no sag phenomenon will occur when sprayed on the target. , the spraying effect is more beautiful. In addition, when the viscosity and particle size of the coating are within the preferred range, they will work together with the pressure of the outer cavity of the spraying tank, so that the paint can be sprayed more smoothly without blocking the mouth of the spraying tank, so that the spraying operation can continue.

As a preferred embodiment, the weight of the paint in the spray can is 100-200 grams.

As a preferred embodiment, 4-8 spraying cans are connected below the drone.

In the present invention, 4-8 spraying cans are arranged under the drone, and the spraying can be started simultaneously in different directions to make the spraying more uniform; the spraying cans can also be sprayed in sequence to increase the spraying amount and reduce the number of ups and downs of the drone. , improve work efficiency and avoid energy waste.

The second aspect of the present invention provides an application of precision spraying technology for UAVs in military special environments, which is applied to wood spraying, billboard spraying, high-rise spraying, bridge spraying, ship spraying, cable spraying, and the like.

The applicant found that the drone is made of carbon fiber, aviation aluminum body, the viscosity of the paint in the spray tank is 50-100P, and the air pressure of the outer cavity is 5-20g, the sprayed paint is less affected by the wind and can resist Winds of level 7 and below. The possible reason is guessed that: the viscosity of the coating is high, and it will not be blown away by the wind. In addition, the pressure of the outer cavity can keep the spraying in a relatively stable direction, which is not affected by the wind. Combined with the stability of the drone, Therefore, the technology of the present application still has a good spraying effect under the wind of grade 6, and will not be affected by the wind. However, if the viscosity of the sprayed paint is higher than the preferred range, it is easy to cause the clogging of the spray nozzle and affect the continuous spraying operation. If the viscosity is lower than the preferred range, the paint will sag after spraying, which will affect the spraying effect. If the spraying pressure is too small, the paint will not be completely sprayed, resulting in waste. If the pressure is too high, after the drone is combined with the drone to rise to a high altitude, due to the reduced atmospheric pressure, the spraying can may burst, causing danger.

The radar detector is connected to the drone, and the radar detector can detect the distance between the drone and the spraying object. When the distance is too close, the radar detector will send out a buzzer alarm signal and transmit it to the ground control panel. The distance between the drone and the spraying object can be controlled, ensuring the spraying effect and preventing the drone from colliding. The panoramic monitor is connected to the drone. The panoramic monitor can transmit the picture of the object to be sprayed to the ground control panel. The operator can control the drone to fly to the predetermined spraying area, and set the horizontal spraying program according to different spraying objects. The spraying program, or the rotating spraying program, and then the spraying command is issued. After the drone receives the command, it will pop open the switch valve of the spraying can to start spraying automatically. When the paint on the spray can is finished, the drone will suspend the flight, and then start the rotating disc to turn the remaining spray cans to the corresponding position, and continue to run the preset program until all the sprayed objects are sprayed.

The present invention will be specifically described below by means of examples. It is necessary to point out here that the following examples are only used to further illustrate the present invention, and should not be construed as limiting the scope of protection of the present invention, and some non-essential improvements made by those skilled in the art according to the above-mentioned content of the present invention and adjustment, still belong to the protection scope of the present invention.

In addition, all raw materials used are commercially available unless otherwise stated.

Example 1

A precise spraying technology for unmanned aerial vehicles in military special environment, the unmanned aerial vehicle spraying technology includes: unmanned aerial vehicle, spraying can, and a control system, the spraying can is connected with the unmanned aerial vehicle through a rotating disc, and the spraying can The nozzle faces the outside of the drone, and the control system includes radar detectors, panoramic monitors, and ground control panels.

The drone is a carbon fiber and aviation aluminum body, powered by a lithium battery. The spray tank has a capacity of 150CC. The outer cavity of the spraying can is filled with compressed nitrogen. The pressure of the outer cavity of the spray can is 15 kg. The paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 75P at 25°C. The weight of the paint in the spray can is 150 grams. There are 5 spray cans connected below the drone.

The water-based paint is self-made, and the preparation raw materials are in parts by weight. The steps are: 500 parts of water-based hyperbranched emulsion, 100 parts of hexadecyl alcohol, mixed evenly at a rotating speed of 700 rpm, 2 parts of bentonite after 1 hour, and 300 parts of deionized water. portion, continue to stir for 1 h, add white water-based color paste, stir at a constant speed for 30 min, and pass through a 175 mesh sieve. The aqueous hyperbranched emulsion was purchased from Aochang Industrial under the model number TGA-802.

Example 2

A precise spraying technology for unmanned aerial vehicles in military special environments. The unmanned aerial vehicle spraying technology includes: unmanned aerial vehicle, spraying tank, and control system.

The drone is made of carbon fiber and aviation aluminum body, powered by lithium battery. The capacity of the spray tank is 200CC. The outer cavity of the spraying can is filled with compressed nitrogen. The pressure of the outer cavity of the spraying tank is 10 kg. The paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 70P at 25°C. The weight of the paint in the spray can is 100 grams. There are 4 spray cans connected below the drone.

The water-based paint is self-made, and the raw materials are prepared in parts by weight. The steps are: 500 parts of water-based hyperbranched emulsion, 100 parts of hexadecyl alcohol, mixed evenly at a rotating speed of 700 rpm, 1.5 parts of bentonite after 1 hour, and 300 parts of deionized water. portion, continue to stir for 1 h, add white water-based color paste, stir at a constant speed for 30 min, and pass through a 250-mesh sieve. The aqueous hyperbranched emulsion was purchased from Aochang Industrial under the model number TGA-802.

Example 3

A precise spraying technology for unmanned aerial vehicles in military special environments. The unmanned aerial vehicle spraying technology includes: unmanned aerial vehicle, spraying tank, and control system.

The drone is made of carbon fiber and aviation aluminum body, powered by lithium battery. The capacity of the spray tank is 300CC. The outer cavity of the spray can is filled with compressed carbon dioxide. The pressure of the outer cavity of the spray can is 20 kg. The paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 100P at 25°C. The weight of the paint in the spray can is 200 grams. There are 7 spray cans connected below the drone.

The water-based paint is self-made, and the preparation raw materials are in parts by weight. The steps are: 500 parts of water-based hyperbranched emulsion, 100 parts of hexadecyl alcohol, mixed evenly at a rotating speed of 700 rpm, 2.5 parts of bentonite after 1 hour, and 300 parts of deionized water. portion, continue to stir for 1 h, add white water-based color paste, stir at a constant speed for 30 min, and pass through a 100-mesh sieve. The aqueous hyperbranched emulsion was purchased from Aochang Industrial under the model number TGA-802.

Comparative Example 1

A precise spraying technology for unmanned aerial vehicles in military special environments. The unmanned aerial vehicle spraying technology includes: unmanned aerial vehicle, spraying tank, and control system.

The drone is made of carbon fiber and aviation aluminum body, powered by lithium battery. The spray tank has a capacity of 150CC. The outer cavity of the spraying can is filled with compressed nitrogen. The pressure of the outer cavity of the spray can is 15 kg. The paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 40P at 25°C. The paint filled in the spraying tank is filtered through a 90-mesh filter screen. The weight of the paint in the spray can is 150 grams. There are 5 spray cans connected below the drone.

The water-based paint is WET-267.

Comparative Example 2

A precise spraying technology for unmanned aerial vehicles in military special environments. The unmanned aerial vehicle spraying technology includes: unmanned aerial vehicle, spraying tank, and control system.

The drone is made of carbon fiber and aviation aluminum body, powered by lithium battery. The spray tank has a capacity of 150CC. The outer cavity of the spraying can is filled with compressed nitrogen. The pressure of the outer cavity of the spraying tank is 4 kg. The paint filled in the inner cavity of the spray can is water-based paint, and the viscosity of the paint is 75P at 25°C. The weight of the paint in the spray can is 150 grams. There are 5 spray cans connected below the drone.

The water-based paint is self-made, and the raw materials are prepared in parts by weight. The steps are: 500 parts of water-based hyperbranched emulsion, 100 parts of hexadecyl alcohol, mixed evenly at a rotating speed of 700 rpm, 1.5 parts of bentonite after 1 hour, and 300 parts of deionized water. portion, continue to stir for 1 h, add white water-based color paste, stir at a constant speed for 30 min, and pass through a 175 mesh sieve. The aqueous hyperbranched emulsion was purchased from Aochang Industrial under the model number TGA-802.

Performance Testing:

1. Coating adhesion test: according to GB/T 5210-2006, the tensile stress rate is 1Mpa/s, the failure strength is greater than 7Mpa, the damage level 0: the cohesive failure of the substrate; the damage level 1: the first coating Cohesive failure, failure degree 2: Cohesive failure of the nth coating of the composite coating.

2. Wind resistance performance test: artificially create different levels of wind power, and the accurate spraying within the range of 5cm ² is qualified.

The examples and comparative examples were tested according to the above-mentioned standards, and the results are shown in Table 1.

Table 1

paint adhesion wind resistance test Nozzle clogged Example 1 Level 1 ≤Level 6 none Example 2 Level 1 ≤Class 5.5 none Example 3 Level 1 ≤Class 5.5 none Comparative Example 1 level 2 ≤Class 4 none Comparative Example 2 Level 1 ≤Class 4 blockage

Claims (10)

1. a technology for precise spraying of unmanned aerial vehicles in military special environment, is characterized in that, comprises: unmanned aerial vehicle, spraying tank, control system, and described spraying tank is connected with unmanned aerial vehicle by rotating disc, and the nozzle of spraying tank is Towards the outside of the drone, the control system includes radar detectors, panoramic monitors, and ground control panels. 2 . The precise spraying technology for unmanned aerial vehicles in special military environments according to claim 1 , wherein the unmanned aerial vehicle is a carbon fiber and aviation aluminum fuselage, and is powered by a lithium battery. 3 . 3. The precise spraying technology for military special environment unmanned aerial vehicle according to claim 1, wherein the capacity of the spraying tank is 200-300CC. 4 . The precise spraying technology for unmanned aerial vehicles in special military environments according to claim 1 , wherein the outer cavity of the spraying tank is filled with compressed nitrogen gas or compressed carbon dioxide. 5 . 5. The precise spraying technology for unmanned aerial vehicles in a military special environment according to claim 1, wherein the pressure of the outer cavity of the spraying tank is 5-20 kilograms. 6. The precise spraying technology for military special environment unmanned aerial vehicle according to claim 1, characterized in that, the paint filled in the inner cavity of the spraying tank is a water-based paint, and the viscosity of the paint is 23±2°C. 50-100P. 7 . The precise spraying technology for unmanned aerial vehicles in military special environment according to claim 1 , wherein the paint filled in the spraying tank is filtered through a 100-250 mesh filter screen. 8 . 8. The precise spraying technology for unmanned aerial vehicles in military special environments according to claim 1, wherein the weight of the paint in the spraying tank is 100-200 grams. 9. The precise spraying technology for unmanned aerial vehicles in special military environments according to claim 1, wherein 4-8 spraying cans are connected below the unmanned aerial vehicle. 10. An application of the precise spraying technology for military special environment drones according to any one of claims 1-9, characterized in that, it is applied to wood spraying, billboard spraying, high-rise building spraying, bridge spraying, ship spraying spraying, cable spraying, etc.