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In 2014, the cotton planting area in Xinjiang reached 25 million mu. In 2015, due to the fluctuation of cotton prices, the planting area was reduced to 21 million mu, but it is still one of the main factors to promote the development of Xinjiang's agricultural economy. Large-scale agricultural operations also promote the development of agricultural mechanization, and drone plant protection is clearly a shining star. Compared with the traditional inhaler, the injury of the pipe or tractor spray, the drone plant protection with its low damage quickly became the focus of farmers.
Changing the traditional work mode drone into a sprite on the cotton field
[China Agricultural Machinery Industry News] The drones that are getting hot in the consumer field are also showing their talents in crop protection. The use of drones to replace manned navigation aircraft for agricultural spraying not only greatly reduces the cost, but also greatly increases the flexibility of the operation, especially in the rugged terrain, the benefits of the drone are obvious.
Changing the traditional work mode drone into a sprite on the cotton field
Drone: A "small gadget" that changes the traditional agricultural work model
Now Xinjiang has a bumper harvest. When the car is galloping on the road, it will occasionally see the drones flying in the cotton field next to the defoliant. I thought that there will be a large number of teams in the command operation. It was found that there were only four staff members in the three drones, including one driver master. Captain Wang Yu gave us a brief introduction to the plant protection machine operation: a filling machine automatically puts the prepared medicine into the medicine box (the staff can avoid direct drug contact), and the operator puts the battery and the medicine box into the plant protection machine separately. Then, through a smart handheld terminal like a mobile phone, the route planning of several working machines is carried out, and the plant protection machine can complete the autonomous flight operation after one-off take-off. The cost of the service is about 8 yuan per mu. The medicine can be provided by the farmers. Of course, the package of 14 dollars (including service, medicine and insurance) can be selected. In addition, Wang Yu also introduced that compared with the 70-80 mu working area of ​​tractor plant protection, the plant protection area of ​​a single drone can reach 200 mu per day, while the low-pressure spray technology used in drone operation is better than tractor operation. It can save up to 90% of water consumption and 30% of medication.
In addition, for better service farmers, RTK technology is applied to farmland measurement and plant protection (Real-time kinematic), which is a measurement method that can achieve centimeter-level accuracy compared to previous multi-solutions. RTK can realize the real-time difference calculation coordinate and get the centimeter-level positioning accuracy), so that the surveyor can not only provide more work routes but also protect the farmer's part of the benefits to a certain extent, and the RTK module is equipped without The man-machine can also accurately spray the spray along the preset route. The error of the flight offset is within the range of centimeter, and there is no phenomenon of heavy spray or leak spray. To a certain extent, it also reduces the risk of working vegetation from drone damage.
UAV plant protection is more than just a pesticide
At present, the top five crops in the area of ​​aviation spray operations are: corn, wheat/barley, cotton, soybeans and rice, but the concept of UAV plant protection still remains at the level of a drug application, but in the true sense The plant protection service is not only to spread pesticides on crops, but also to find excellent spray solutions through extensive testing and verification. In the past, the research hotspots of aviation spray technology in the world mainly focused on traditional agricultural aircraft, namely light fixed-wing aircraft, helicopters and light unmanned helicopters. The research content is mainly divided into two aspects: First, the application of controlled droplet technology and droplet drift Control research; second, the use of global positioning system (GPS) and application technology. However, with the development of multi-rotor plant protection drones in recent years, especially in combination with the application of RTK technology, the problem of pesticide application has been basically solved, and the former still needs a lot of tests to carry out the test. Zheng Tao, COO of Feifei Agriculture, introduced a series of experiments with a number of agricultural universities, such as the project of cooperation with Xinjiang Agricultural University in August. The main test direction is the penetration of drone droplets on the vegetation. Force and the spatial distribution of the droplets: set the flight range of the drone, and place an aluminum pole with a white paper length of 3 meters and 8 centimeters on the open space, and then the drone carries the reagents at different flight speeds. Flying at different altitudes, then sorting out the white paper with spray marks and bringing it back to the laboratory to analyze the spray marks with professional software such as aeronautical height, speed, wind speed, etc. The results of this experiment were immediately applied to the operation of the drone cotton defoliant in September.
Agricultural plant protection takes a short time in a year, but agriculture is a civilian market for drones and a big market. Previously, the International Association of Unmanned Aerial Vehicles (AUVSI) had predicted that the application of UAVs in the civilian sector in 2015-2025 would contribute US$82 billion to the US economy, of which nearly 90% would come directly from the agricultural sector. In 2014, the sales of plant protection drones in Japan reached 7.1 billion yen, or about 464 million. China's cultivated land area is 28 times that of Japan, and its potential is huge. However, compared with Japan, China's terrain is more complicated, which undoubtedly increases the difficulty of operation of drones. However, with the continuous improvement of multi-rotor drone technology, farmers' acceptance It is also getting higher and higher, and the UAV plant protection operation market will become more and more mature.