The invention discloses a plant protection unmanned aerial vehicle intelligent pesticide spraying method and system based on radar detection information, and belongs to the field of unmanned aerial vehicle plant protection. The system comprises a plant protection unmanned aerial vehicle, a Beidou signal receiving module, a laser radar point cloud module, a PWM pulse width modulation module and a precise pesticide spraying mechanism. The method comprises the following steps: loading a radar camera on a plant protection unmanned aerial vehicle carrying Beidou receiving equipment, capturing detailed characteristic data of a tree crown at high altitude, constructing the captured canopy information by an airborne computer by using a LeGO-LOAM algorithm, and transmitting the information to a single chip microcomputer; the pulse width modulation module is processed by the single chip microcomputer to obtain canopy point cloud data, then generates a pulse width modulation signal, and controls the on-off time duty ratio of an electromagnetic valve; according to the invention, high-precision acquisition of the crop canopy volume is realized, the canopy volume is combined with plant protection unmanned aerial vehicle pesticide spraying, the accuracy of the pesticide spraying amount is improved, the application amount of pesticide can be greatly reduced, and modern agriculture with green and low-carbon development is realized.
本发明公开了一种基于雷达探测信息的植保无人机智能喷药方法及系统,属于无人机植保领域;所述的系统包括:植保无人机、北斗信号接收模块、激光雷达点云模块、PWM脉宽调制模块、精准喷药机构。将雷达相机装载在载有北斗接收设备的植保无人机上,进行高空捕获树冠的详细特征数据,机载电脑把捕获到的冠层信息使用LeGO‑LOAM算法进行构建,传输到单片机中;脉宽调制模块由单片机处理获得得冠层点云数据后生成脉宽调制信号,控制电磁阀的开关闭时间占空比;本发明实现了作物冠层体积的高精度获取,将冠层体积与植保无人机喷药进行结合,提高了喷药量的精确度,可以大量减少农药的施用量,实现绿色低碳发展的现代农业。
Plant protection unmanned aerial vehicle intelligent pesticide spraying method and system based on radar detection information
一种基于雷达探测信息的植保无人机智能喷药方法及系统
2023-08-01
Patent
Elektronische Ressource
Chinesisch
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / A01M Tierfang, Tierfallen oder Abschreckvorrichtungen für Tiere , CATCHING, TRAPPING OR SCARING OF ANIMALS / B64U / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06V |
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