Hebei plant protection drone flight control system must also vigorously tackle

[China Agricultural Machinery Network Industry News] Compared with traditional artificial spraying, plant protection drone spraying has the advantages of high efficiency, water saving, uniform spraying, labor saving, etc. Many advantages have been widely recognized and recognized. With the development of China's agricultural modernization, Hebei plant protection drones will further deepen the development of agricultural science and technology.

According to statistics, in 2015, the number of plant protection UAVs in Hebei Province reached 2,324 (31 provincial statistics), with a total operating area of ​​11.528 million mu. Last year, the two figures were 695 and 4.26 million mu, a year-on-year increase of 234% and 170.6% respectively. But the vision depicted is too good to be realized. Usually, when an industry is just getting started and the new trend becomes clearer, the exaggeration is a magic weapon for many companies to raise funds, attract attention, and seize the market. “Concept> Practical” is considered to be the initial stage of UAV application in the plant protection market. Even some insiders believe that Hebei plant protection drones are still in the absence stage.

Hebei plant protection drone flight control system must also vigorously tackle

Technology needs to be tackled

He Xiukui is a Chinese agricultural drone who has long been engaged in the teaching and research of agricultural mechanization projects. He believes that "80% of the plant protection machines on the market are not qualified, and it is not practical in spraying operations. China's Hebei plant protection drones Technologies such as flight control systems and flight platforms need to continue to work hard."

At present, most of the plant protection UAV enterprises in Hebei are transformed by aeromodelling manufacturers. Most of the models produced are electric Hebei plant protection drones. The average battery life of the equipment is 8-15 minutes. It needs to be prepared during the flight defense process. Multiple sets of batteries are replaced, and the average price per set of batteries is thousands of dollars, and the cost is higher. Before the battery endurance is not broken, how to effectively increase the load weight is also a great challenge for Hebei plant protection drone enterprises.

He Xiongkui believes that from the perspective of individual technologies, there have been great breakthroughs in the past two years. However, the application of industrial technology transformation to the agricultural sector requires further understanding and integration of the needs of this industry. "There are not many products that are actually put on the market. For this reason, it can be seen from the 'performance type' that most of the plant protection is not practical."

Lack of support is technical

In addition to the technical level of the product, He Xiongkui believes that the application technology of the low-altitude and low-volume application of Hebei Plant Protection UAV is also a short-term market. The user does not have a scientific and perfect discriminant criterion to determine the spray process. The application parameters such as droplet size, droplet deposition distribution density, and pesticide concentration are required. At present, agricultural drones can achieve anti-drift and anti-evaporation to a certain extent, and the degree is also improved. However, problems such as pesticide waste and environmental pollution still exist in a large amount, and the timing, timing, temperature, and The technical requirements for operating specifications such as humidity and wind speed need to be further improved.

Compared with developed countries, there is still a big gap in China's aviation plant protection in terms of the amount of medicine used per unit area, the main varieties of pesticides used, the methods of application, and the utilization rate of pesticides. Therefore, the active development of low-altitude and low-volume aerial application technology is a common challenge faced by plant protection enterprises and pharmaceutical companies. To this end, He Xiukui suggested that relevant functional departments, research institutes, and Hebei plant protection drone enterprises should be united to speed up the development and application of pesticide specifications and testing standards for low-altitude and low-volume aviation-specific pesticide formulations, and conduct field trial research in a timely manner. Promotion. At the same time, the state also needs to issue relevant support policies for the purchase of Hebei plant protection drones and the establishment of specialized service organizations and other subsidies, the establishment and improvement of maintenance and insurance policies.

Guo Yongwang, deputy director of the National Agricultural Technology Extension Service Center of the Ministry of Agriculture, believes that through the four technological paths of control, replacement, precision and integration, it is possible to effectively control the amount of pesticides, ensure the quality and safety of agricultural products and the safety of ecological environment. By 2020, the use of pesticides will be realized. Zero growth. The specific explanation is to control, that is, to control the occurrence of pests and diseases; instead, low-toxic and low-residue pesticides replace high-toxic and high-residue pesticides, and large and medium-sized medicines replace low-efficiency small-scale medical equipment; fine, that is, the implementation of scientific application; Promote the control of pests and diseases.

The development of aviation special chemicals is not mature

At present, the plant protection drone market in Hebei is more chaotic. There is a misconception that the drone can fly and spray. However, He Xiukui told reporters that this kind of cognition is wrong. A large number of Hebei plant protection drones on the market are only suitable for water spray, and are not suitable for low-capacity and ultra-low-volume application. The key reason is the special spray system matched with it. And special agents for aviation plant protection.

He Xiukui said that the aviation plant protection drone in Hebei uses ultra-low-volume spray. The pesticide dosage form should be good with oil, followed by emulsifiable concentrate, water emulsion, etc., but the most popular pesticides on the market are wettable powders and suspending agents. Dispersible granules, etc., are used in traditional artificial spray equipment and are not suitable for aviation operations.

(Original title: Hebei plant protection drone deepens the development of agricultural science and technology, three factors hinder its growth)