RTK technology has been around for a long time. It has the advantages of high positioning accuracy, high degree of operation automation and integration, and high operation efficiency. , topographic mapping, construction stakeout, deformation monitoring and other fields have been widely used. In recent years, with the development of the plant protection drone industry and the improvement of precision agriculture's requirements for the industry, RTK technology has also been applied to the field of plant protection drones. Compared with other industries, the combination of RTK technology and plant protection UAVs is still in its infancy. At present, the reference station of RTK technology applied in the field of plant protection UAVs usually adopts a mobile base station, and its effective working radius and GPS receiver power Generally, it can reach about 5 km. The mobile station generally includes a handheld terminal and an airborne terminal. The handheld terminal is mainly used to collect land plot data, formulate flight operation plans, and plan flight routes, and then upload them to the flight control system through the ground station; Positioning achieves the purpose of precise flight.
Picture: MH-G410S Plant Protection UAV
Due to the problem of positioning deviation in the operation of conventional GPS plant protection drones, there will be phenomena of falling height and flying straight, and problems such as heavy spraying and missed spraying often occur. How to accurately complete breakpoint continuous spraying is also a technical problem that has been solved all the time. After equipped with RTK positioning system, with the help of RTK differential positioning technology, it can eliminate the influence of satellite clock error, receiver clock error, atmospheric ionosphere and tropospheric refraction error, so that The positioning accuracy reaches centimeter level. Use the hand-held surveyor equipped with RTK module to measure the plots to obtain high-precision field boundary information, as the data basis for formulating routes with centimeter-level accuracy, and UAVs can carry out flight operations after the routes are formulated to properly solve the problem. Problems such as heavy spraying and missing spraying caused by route deviation.
In addition, the ridge width of farmland in many areas of my country is generally small, and there are many complex terrains such as hills and mountains, which require high precision for the flight routes of plant protection drones. If accurate spraying cannot be achieved, not only will the effect of preventing and controlling pests and diseases not be achieved, but phytotoxicity may even occur. The application of RTK technology can promote the plant protection UAV to truly embark on the road of precision operation. Precise operation is reflected in two aspects: one is flying accurately, that is, high-precision autonomous flight technology. Accurate field boundary information can be obtained through the RTK system, and the accuracy of the flight path can be improved from the meter level to the centimeter level, without the need for manual remote control, to achieve fully autonomous flight and spraying; at the same time, the drone can automatically avoid obstacles such as houses, trees, and cables objects, avoiding collisions and bombing accidents. The second is accurate spraying, which can be achieved through precise variable spraying technology, and at the same time properly solves the problems of heavy spraying and missed spraying caused by GPS positioning deviation in the past.
Therefore, RTK technology is necessary in the application of plant protection drones. Today’s content is shared with you here. If you want to know more about plant protection drones, please pay attention to ManHope’s website (//www.manhope.com/), and we will update it regularly. If you want to consult the price of agricultural plant protection drones, welcome to consult!