基于物联网技术的履带式果园智能喷药机设计与试验OA

Due to the drawbacks of traditional manual spraying methods and it was difficult to adapt to the large-scale de-velopment of orchards.Therefore,taking the crawler remote control machine as the carrier,integrating remote control technology,Internet of Things technology,navigation technology,integrating air-assisted sprayer,navigation module,visual control module,and optimizing control algorithm,a crawler orchard intelligent sprayer based on Internet of Things technology was developed.The hardware selection and calculation of the spraying system,navigation module and visual control module were mainly carried out.The control algorithm of the tracking controller of the navigation module was dis-cussed,and the spraying test was carried out in the pear orchard.The results showed that the grounding pressure of the crawler chassis decreased from 15.5 kPa to 15.2 kPa,and the average soil compactness was 234.44 kPa.The spraying characteristics were basically consistent with the growth characteristics of the pear tree.The average absolute value of the lateral tracking deviation was 2.436 cm.The maximum command response delay was 0.6 s,and the maximum video transmission delay was 1.3 s.The intelligent spraying machine realized remote unmanned spraying operation,and could monitor the operating environment in real time to meet the needs of large-scale management of orchards.