Abstract: Aiming at the problem of low intelligent degree of organic fertilizer fertilization, an intelligent fertilizer application machine is developed. The power part of the whole machine adopts the combination of hydraulic system and mechanical system, and the control system adopts FPGA technology. Using the data processing in the early stage, the relationship between the amount of fertilizer application, the width of fertilizer application and the gear position of the fertilizer delivery mechanism, the opening of the fertilizer control gate and the angle of the fertilizer drop point control cover and the correlation between the amount of fertilizer application and the width are obtained, and the variable adjustment and visual control of the amount of fertilizer application and the width can be realized, and the size of the width can be predicted according to the amount of fertilizer application. The results show that the program of the control system is stable and reliable, the error of fertilizer application amount is 2.58%, the error of fertilizer width is 3.53%, and the operation effect is good, and the technical indexes meet the agronomic requirements.

Key words: intelligence, fertilizer applicator, visual control, organic fertilizer, field management machinery

摘要： 针对有机肥施肥存在智能化程度低等问题,研发设计一种智能施肥机。整机动力部分采用液压系统和机械系统结合方式,控制系统采用FPGA技术,利用前期的数据处理得到施肥量、施肥幅宽与输肥机构挡位、控肥闸门开度和肥料落点控制罩角度关系式及施肥量和幅宽的相关性,实现施肥量、施肥幅宽的变量调节及可视控制,并可根据施肥量预测幅宽的大小。验证结果表明:该施肥机控制系统程序稳定可靠,施肥量误差为2.58%,施肥幅宽误差为3.53%,作业效果良好,各项技术指标满足农艺要求。

关键词: 智能, 施肥机, 可视控制, 有机肥, 田间管理机械