The hottest plant protection UAV flies into the er

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Plant protection unmanned aerial vehicles fly into the era of "standardization"

in recent years, plant protection unmanned aerial vehicles in China have increased explosively. Because of its high efficiency, low cost and strong adaptability to farmland, it is welcomed by many farmers and new agricultural business entities. Data show that by the end of 2017, the number of plant protection UAVs in China had reached 14000, with an operating area of more than 100million Mu times. However, the standardization of plant protection UAV is seriously lagging behind, resulting in a mixed industry, the quality of UAV can not be guaranteed, and the occurrence of farmers' entrapment and harmful agricultural events from time to time, which restricts the sustainable development of the plant protection UAV industry

plant protection UAV production enterprises, scientific research institutions, extension units, farmers and government regulators have increasingly urgent needs for industry standards. In order to regulate the safe use of plant protection UAVs, improve the agricultural productivity of plant protection UAVs, and promote the orderly development of the plant protection UAV industry, the former Ministry of Agriculture issued the agricultural industry standard formulation tasks of "safety technical requirements for agricultural remote control aircraft" and "test methods for remote control flying spray" in 2014 and 2015 respectively. Then, considering the current situation and development trend of plant protection UAVs in China and the production and application characteristics of plant protection UAVs, the Nanjing Institute of agricultural mechanization of the Ministry of agriculture and rural areas, together with China Association of agricultural mechanization and other units, merged the two standards and completed the first technical specification standard of plant protection UAVs in China?? The technical specification for quality evaluation of plant protection unmanned aerial vehicles (Standard No. ny/t, hereinafter referred to as the specification) has been officially implemented since June 1 this year. It can be said that this standard has gathered a lot of research from regulators, experts and scholars and the consensus and efforts of the whole industry. Recently, I interviewed industry experts on the formulation process of the standard, the significance of its implementation, and how to improve it in the future

there are few twists and turns in the process of formulating standards.

"China's plant protection UAV standards are formulated within the scope of laws and regulations issued by the national competent department, with safety as the primary goal, with reference to existing domestic and foreign standards, and based on China's current experience and needs in production, research and development, application and management." Xuexinyu, director of the plant protection and environmental engineering center of Nanjing Agricultural Mechanization Research Institute of the Ministry of agriculture and rural areas, introduced

although it has been more than a month since the release and implementation of the specification, the original formulation was not easy. Xue Xinyu introduced that the existing standards are an important reference basis for the formulation of the code, but there are not many references

firstly, the content of relevant standards that can be referenced abroad is very limited. According to the interview, the published standards abroad mainly include the aviation plant protection standards of manned aircraft and civil UAV standards, and there are few standards directly related to plant protection UAVs. The task equipment and interface, communication and navigation technology related to the plant protection UAV platform can refer to the requirements of civil UAV; The flight management, registration and certification, operation quality and evaluation methods related to plant protection operations can refer to the aviation plant protection standards of manned aircraft and the relevant requirements of traditional plant protection machinery. Japan, which is similar to China's aviation operation mode, has high reference value for the safety requirements and operation guidelines embodied in its standards. However, the large-scale application in Japan is the oil powered single rotor UAV (unmanned helicopter), and the multi rotor UAV is just in its infancy. China has both single rotor UAV and multi rotor UAV, as well as oil powered and electric UAV

secondly, the reference value of relevant domestic standards is not high. Before the release and implementation of the specification, there were only a few local standards and group standards that can be referred to for plant protection UAVs in China, including two local standards in Hunan Province and one in Chongqing, Jiangxi Province and Guangxi Zhuang Autonomous Region. Agricultural related group standards are mainly formulated by social groups such as China Agricultural Mechanization Association, UAV System Standardization Association, national agricultural aviation industry technology innovation strategic alliance, but the scope of application is small at present

in fact, since 2014, relevant departments have been planning to formulate industry standards, and finally launched this industry standard after three years of exploration and revision. Yang Lin, vice president of China Association of agricultural mechanization, said that in 2016, the plant protection UAV standard had also been proposed, but because the development of plant protection UAV was not mature at that time, and the technology was also being explored, it could not be successfully implemented in the end

guide the healthy development of the industry and make plant protection UAVs better used

"it is better to have industry standards than not." He xiongkui, director of the Research Center for pharmaceutical machinery and pesticide application technology of China Agricultural University, believes that when the development of plant protection UAVs does not reach a certain height, the introduction of standards will restrict the development of the industry and make plant protection UAV enterprises lack development space. After experiencing rapid development, the technology of plant protection UAV has been improved, and the formulation of standards has become very necessary. "Just like a child who has just learned to walk, he needs to grow up freely, but he also needs the help of his family."

it is understood that the standards are divided into national standards, local standards and industrial standards in terms of scope. National standards are divided into recommended standards and mandatory standards. The "norms" issued this time belong to the national level recommended standards for the agricultural industry. As China's first plant protection UAV industry standard, what is the significance of its implementation? "Its implementation points out the direction for enterprises, which can be regarded as a technology leading standard. It is also helpful to users. In the past, they could not judge the quality of plant protection UAVs, but now they have a ruler in their heart. In addition, the standard is also conducive to the supervision of plant protection UAVs by regulatory authorities." Xue Xinyu told

The release and implementation of the specification will also guide enterprises to standardize the production and operation activities of plant protection UAVs and promote the popularization and application of plant protection UAVs. "We believe that after the introduction of the standard, through a period of exploration and practice, the overall technical level of China's plant protection UAV industry will be qualitatively improved, which will ultimately benefit farmers and effectively enhance the competitiveness of China's agriculture." Chen Tao, the sales director of Dajiang agriculture in China, believes that although the standard does not have mandatory legal effect for the time being, it is of great significance. It not only makes requirements for the quality of plant protection UAVs, but also the current quality requirements for plant protection UAVs. This printing material is the most authoritative and standardized standard in color sense, which is of epoch-making significance in promoting the development of the industry and guiding the identification and supervision of agricultural machinery departments. At the same time, the inspection method is required

last year, six provinces and cities in China piloted plant protection UAVs into the catalogue of agricultural machinery purchase subsidies, and the pilot range will continue to expand this year. Yang Lin told: "when the agricultural machinery management department subsidizes the plant protection UAV, it needs to consider what kind of plant protection UAV can enter the subsidy catalogue, so it needs to have a quality evaluation standard, which is an important reference basis. Strictly control this export, and the places that enjoy the subsidy can really use the plant protection UAV, and it can be used better to open a breakthrough in the classification and recycling of domestic waste."

technology continues picture source: the upgraded standard system of Purdue University will also be gradually improved

plant protection UAV is an emerging industry. In the future, its safety, intelligence, automation, operation quality and other technologies will have new breakthroughs, which will inevitably put forward new requirements for the operation quality and effect of plant protection UAV. That is to say, the formulation of this standard will not remain unchanged

"With the progress of plant protection UAV technology, the standards sometimes fall behind and need to be revised and improved. There are various types of plant protection UAVs. When specifying the universality requirements of plant protection UAVs, it is often difficult to adopt unified standards, and the specific indicators need to be deeply considered. In addition, there are few indicators and test methods that can be used for reference, so many test methods and effect evaluation need innovative design and strengthened verification when formulating standards These have increased the workload of formulating plant protection UAV standards. " Xue Xinyu said that the formulation of this standard is just the beginning. In the future, the technical specifications for pesticide application, quality operation specifications, training specifications and other contents of plant protection UAVs will be standardized, so as to form a plant protection UAV standard system. "The establishment of the standard system needs to be combined with the urgent needs of plant protection UAVs in the near future and the long-term system planning, so that the standard system of plant protection UAVs can be continuously supplemented and improved."

"the standard work is formulated step by step, and whether it is applicable in the implementation process will gradually appear." Yang Lin also believes that it is inevitable that the technology of plant protection UAV is becoming more and more mature, so it is necessary to modify the standard in the future, and some specific data settings in the standard need to be repeatedly discussed by experts and enterprise representatives before equipment stiffness can be modified

what aspects should we pay attention to when improving the standard in the future? In the view of he xiongkui, the introduction of any standard must be based on many tests and supported by reliable data; When perfecting the standard, we should also consider some key elements such as standardizing the operation effect and quality of plant protection UAVs. At the same time, he also stressed that as of the end of 2017, China's plant protection UAV enterprises had grown to 277, so we must seek more opinions from enterprises

"of course, no standard has the function of 'beating the world'. In order to achieve healthy and orderly development, China's plant protection UAV should continue to conduct in-depth research on low altitude and low dose pesticide application technology of plant protection UAV, train professional high-level talents, optimize the pesticide application technology of plant protection UAV, and promote the efficient and safe use of pesticides." He xiongkui suggested

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