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Low-altitude and low-quantity precision aviation application technology will become a bright spot
[China Agricultural Machinery Industry News] On November 26th, the Low-altitude Low-volume Aeronautical Application Technology Forum was held at the Nanjing International Expo Center. The meeting was organized by the China Plant Protection Machinery and Application Technology Committee, China Agricultural University Plant Protection Machinery and Application. The Technology Center and the Organizing Committee of the 32nd China Plant Protection Double Fair will jointly host the event. Domestic aviation application research institutes, manufacturers and representatives from the application field were all present to jointly create the 2016 high-profile aviation application technology forum.
Low-altitude low-volume air application technology will become a bright spot
“Low-altitude, low-volume,†is the theme of this aviation application technology forum. In 2016, the application area of ​​aviation application technology in agricultural production increased greatly. According to industry sources, some plant protection drone producers and aviation application The service provider of technology began to turn a profit. At the same time, the widespread application of aerospace application technology faces higher and more specific requirements.
He Xiongkui, professor of the Center for Plant Protection Machinery and Application Technology of China Agricultural University, believes that the original intention of plant protection drones is to replace the backward small sprayers, especially in the main food crops that grow in hills and paddy fields and have smaller plots. Rice and so on. Therefore, the drone is suitable for small aircraft, and if it is developed for a large aircraft, the cost performance is not high.
He proposed the ideal parameters for future UAVs, 1) ideal load capacity: about 20L; 2) cruising time: ≥0.5–1h; 3) working height: 0.5~2m; 4) component: medium-duty unmanned helicopter, low Capacity / ultra low volume spray system, remote / autonomous control system / vehicle ground control system.
Chen Xiaobing, director of the Nanjing Agricultural Machinery Research Institute of the Ministry of Agriculture, introduced the current development status of plant protection drones. According to incomplete statistics, there are currently 178 manufacturers of plant protection drones in 25 provinces. According to the type of power, there are 127 products of oil and electric, among which 118 are electric, accounting for 93%; according to the oil load, they are divided into 5L to 45L, among which 89 products are less than 10L, accounting for 70%.
At present, the Nanjing Agricultural Machinery Research Institute of the Ministry of Agriculture has led the drafting of three agricultural remote-controlled flight plant protection machine standards: “Safety Technical Requirementsâ€, “Test Methodsâ€, “Code of Practice for Application of Drugsâ€, and the Ministry of Industry and Information Technology issued by the China Aviation Integrated Technology Research Institute. Basic conditions and evaluation methods for the development unit of civil unmanned aircraft systems
The three magic weapons of the production enterprise:
　　
Flying anti-aid, anti-drop machine, cross-regional operation
The low capacity and ultra-low volume spray of aviation plant protection will face some problems. The pesticide droplets are small, and the area exposed to the air is relatively large. It is easily affected by external conditions when sprayed in the field. Zhang Zongqi, a professor-level senior engineer of Beijing Guangyuan Yinong Chemical Co., Ltd., introduced that the company's Maifei is a special anti-evaporation synergist for fly defense, which can suppress the evaporation of mist droplets, prolong the drying time of droplets and reduce fog. The formation of drops, anti-fluctuation effect is significant; in addition, it can accelerate the absorption of the target liquid and promote conduction.
Zhou Guoqiang, general manager of Anyang Quanfeng Aviation Plant Protection Technology Co., Ltd. (hereinafter referred to as “Anyang Quanfengâ€), said that the plant protection drones have been tepid, in the Xinjiang market where plant protection drones are lining up, local planters are planting The drones are also mixed, mainly because the plant protection drones lack industry standards, and the plant protection drones are mixed.
In particular, the problems of crashes and short working hours are outstanding. Anyang Quanfeng has improved its anti-crash ability on the new generation of plant protection drones, and can take off again after the fall and quickly resume operations. In addition, in an area, an aviation application service team usually only has 45-50 working hours, and the labor efficiency is very low. In this regard, Anyang Quanfeng adopts the method of cross-regional operation, and uses the dispatching system according to the difference of crop birth time in different regions. Schedule the aeromedical team to extend working hours.
Kong Jianqiang, general manager of Nongfeike Agricultural Technology Co., Ltd. believes that the joining of UAV companies such as Dajiang and Feifei will promote the upgrading of the plant protection drone industry. Nongfeike has already deployed a provincial aviation drug application service platform in 10 provinces, and will continue to expand 10 in the next three years. In 2017, 300 county-level service terminals will be deployed. Moreover, the company is conducting a large number of demonstration tests and screening of flying anti-agents. Based on this, the whole crop plant protection solution and the special flying anti-agent package will become the core advantages of the future NFL's “enclosure preventionâ€.