1. Linyi’s agricultural situation and demand for drones

As a major agricultural city, Linyi has abundant arable land resources and a wide variety of crops, including food crops such as wheat, corn, and rice, as well as cash crops such as vegetables and fruits. Traditional plant protection methods, such as manual spraying of pesticides, are inefficient, labor-intensive, and difficult to ensure uniformity when operating in large areas of farmland. The emergence of agricultural plant protection drones has effectively solved these problems. Taking the wheat "one spray and three prevention" project in Yangji Town, Tancheng County and the wheat spring management project in Luguanzhuang Village, Qingyun Town, Linshu County as examples, the use of plant protection drones has greatly improved the efficiency of pesticide spraying and ensured the healthy growth of crops.

2. Industrial drone purchasing channels

1. local dealer : There are many professional drone dealers in Linyi, who represent various brands of industrial drones. The advantage is that you can watch the machine and test it on the spot, and you can get timely pre-sales consultation and after-sales service. For example, some dealers provide on-site training to teach users how to operate drones, perform routine maintenance, etc. Moreover, when a product fails, it can respond quickly and arrange for maintenance personnel to perform repairs. Well-known brands such as DJI and XAG have authorized dealers in Linyi. Users can check the specific address and contact information through the brand's official website.

2. Online e-commerce platform : Major e-commerce platforms such as JD.com and Taobao are also important channels for purchasing industrial drones. The online platform has a wide range of products and transparent prices. Users can easily compare the parameters and prices of different brands and models of drones. Some e-commerce platforms will also provide user reviews and orders to help potential buyers understand the actual use of the product. At the same time, online purchases often have some promotions and coupons, which can save users a certain amount of cost. However, when purchasing online, be sure to choose official flagship stores or reputable merchants to ensure product quality and after-sales service.

3. Factory direct sales : Directly contact the drone manufacturer to purchase to obtain the most direct product information and relatively preferential prices. Manufacturers can usually provide customized services based on the special needs of users. For example, for users with special load requirements or complex operating environments, manufacturers can carry out targeted modifications to the drones. However, direct sales from manufacturers may be slightly inferior in the timeliness of after-sales service, especially in remote areas, where the coverage of after-sales outlets may be insufficient.

3. Key points for selecting spraying drones

1. Load capacity : Choose a drone with an appropriate load capacity based on the scale of the operation and farmland area. If it is a small-scale farmland, a drone with a load of 15-20KG, such as the Shandong Chencheng 3WWDZ-20A plant protection drone, has a medicine box volume of 20 liters, which is enough to meet the demand, and the price is relatively low, and it can also enjoy agricultural machinery subsidies. For large-area farmland operations, you need to choose a large-load drone, such as the DJI T70 series agricultural drone, which has a maximum load of 70 kilograms, which can greatly improve operating efficiency and reduce the number of round-trip dosing.

2. Battery life : Battery life directly affects the operating range and efficiency of the drone. The battery life of lithium battery drones is generally 2-4 hours. If the operating area is large, it is recommended to choose a model with long battery life, or to equip it with multiple sets of batteries. Some high-end models, such as drones using hydrogen fuel cells, have a battery life of up to 3 times that of traditional models, but the price is higher and the maintenance cost is relatively high. In actual selection, operational requirements and cost factors need to be considered comprehensively.

3. sprinkler system ：

• Nozzle type : The centrifugal nozzle can atomize the liquid medicine into micron-sized particles, and the droplets are uniform and fine, suitable for pest control； Mist nozzles are more suitable for tall crops such as fruit trees. They have large flow rate, good atomization effect and can penetrate the back of leaves. For example, the DJI T70 series comes standard with dual atomizing centrifugal nozzles, and fruit tree users can also choose a mist nozzle set according to their needs.

• Spray width range : The spray range of different drones varies, generally around 4-11 meters. Users should choose a drone with appropriate spray width based on the shape of the farmland and crop planting density. For large areas of regular farmland, models with larger spray widths can be selected to improve operating efficiency. ； For small areas and irregular farmland, a more flexible spray width adjustment function is needed.

• Variable spray function : UAVs with variable spraying function can adjust the amount of pesticide spraying in real time according to the growth status of crops and the distribution of pests and diseases to avoid waste and reduce pesticide pollution to the environment. For example, the XAG P150 series agricultural drones are equipped with multi-spectral sensors that can accurately identify crop growth and automatically generate fertilization plans, reducing pesticide use by 30%.

4. Intelligent obstacle avoidance and positioning system ：

• Intelligent obstacle avoidance : In complex farmland environments, where there are obstacles such as telephone poles and trees, the intelligent obstacle avoidance system can effectively avoid drone collisions and ensure flight safety. For example, the DJI Mavic 5 Bionic Vision System and the DJI T70 Series' front and rear millimeter-wave radar and trinocular fisheye vision systems can achieve horizontal 360° and overhead obstacle avoidance, support large slopes without aerial survey, and improve the detection rate of cable stays and wires.

• positioning system : High-precision positioning system is the key to ensuring accurate drone operations. RTK centimeter-level positioning technology allows drones to fly accurately according to preset routes and achieve precise spraying. For example, the XAG XP 2020 agricultural drone uses dual-engine RTK fusion ground vision, which can accurately navigate and fly autonomously.

5. Protection level : Considering that drones operating outdoors may encounter harsh environments such as rain and dust, the protection level of the entire machine is very important. Drones with high protection levels, such as the XAG 2020 agricultural drone with IP67 protection level, are waterproof and dustproof and can be washed directly with water, greatly extending the service life of the drone.