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How to Choose Fixed Wing Or Multi Rotor for UAV Aerial Survey

(source: kunpengtang UAV)UAV mapping obtains high-definition image data through UAV low altitude photography, generates three-dimensional point cloud and model, and realizes the rapid acquisition of geographic information. With high efficiency, low cost, accurate data and flexible operation, it can meet the different needs of the surveying and mapping industry. It greatly saves the workload of field surveying and mapping of Surveying and mapping personnel, and has achieved great social and economic benefits.Some are also called RTK UAVs. Compared with aerial UAV, it has the following four characteristics: 1. Rapid aerial survey response ability; 2. Outstanding timeliness and cost performance; 3. The monitoring area is limited; 4. Rapid acquisition and modeling of surface data. Firstly, it is clear that UAVs are divided into two categories: fixed wing and multi rotor. Today, let's understand the difference between lower fixed wing and multi rotor UAVs, and how to select appropriate UAVs for aerial survey.

How to Choose Fixed Wing Or Multi Rotor for UAV Aerial Survey 1

Advantages of multi rotor UAV: simple operation, light weight and relatively low cost. It can hover at a fixed point. Multi rotor UAV is suitable for small-area applications such as aerial photography, environmental monitoring, investigation, building modeling and special object transportation. The characteristics of multi rotor UAV are that it can hover, vertical rise and fall have low requirements for take-off site, but the speed is relatively slow and the endurance period is long, Therefore, it is more suitable in many areas with complex environment and small scope, such as aerial photography, monitoring, investigation, architectural modeling, etc. The operation is simple and can be operated after simple training.

On the market, consumer UAVs such as Dajiang and zero are rotor UAVs. Usually, the endurance time of rotor UAV is about 20 minutes, and the load is basically a micro single camera. Some industrial grade rotor UAVs have a maximum load of 7kg and a endurance of 40 minutes. Compared with ordinary consumer grade rotors, they also greatly improve the operation efficiency and adaptability. They have a good performance in surveying and mapping involving small areas such as urban areas, mining areas and disaster emergency.

Advantages of fixed wing UAV: long endurance, good wind resistance and wide shooting area. The fixed wing is suitable for aerial survey, regional monitoring, pipeline patrol, emergency communication, etc. the flight principle of the fixed wing UAV is similar to that of the aircraft. The thrust generated by the propeller or turbine engine is used as the driving force for the aircraft to fly forward, and the main lift force comes from the relative movement between the wing and the air. Therefore, the fixed wing UAV must have a certain relative speed of air before it can have lift to fly.

Fixed wing aircraft has the characteristics of fast flight speed and large carrying capacity. When there is a need for range and altitude, fixed wing UAVs are generally selected, such as low altitude photogrammetry, electric line patrol, highway monitoring, etc. Fixed wing UAVs are generally widely used in industry and can only be operated after systematic training. The performance is convenient, the endurance time can reach 2 hours, and the shooting area of a single flight is more than 30 square kilometers (scale: 1:1000), which is suitable for large-area surveying and mapping and large-area shooting.When selecting UAVs, in addition to considering factors such as price, endurance time and wind resistance, another point that must be paid attention to is accuracy. Generally, the working height of UAV is more than 1000m, so it is a basic requirement to meet the resolution of 1:1000 and 1:2000.In addition, there is the security of UAV. In order to prevent UAV "bombing", a good UAV should have a stable flight control system and a perfect emergency system. Design route, autopilot, automatic return in unsafe state, etc. Of course, the flight area, ejection rack, ground station, parachute landing point and even the weather should also be carefully used.

How to Choose Fixed Wing Or Multi Rotor for UAV Aerial Survey 2

Finally, in the process of using UAVs, there is another very important point to pay attention to - the no fly zone. And the no fly is divided into 30 meters, 60 meters, 120 meters and complete no fly! In fact, the electric UAV falling down is not terrible. In comparison, the privacy issues of national security and other organs and units are more sensitive. After all, Heifei can be sentenced. In order to avoid being included in the scope of black flight, you can obtain a UAV driver's license.

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