新型FPGA集成技术在水稻直播机设计中的应用

Application of New FPGA Integration Technology in the Design of Rice Direct Seeding Machine

以水稻直播技术为研究对象,依据水稻播种过程农艺要求,确定了水稻直播机的关键技术参数,并基于FPGA技术建立水稻直播机控制系统,对FPGA系统硬件及软件控制模块进行设计,以改善播种过程中的均匀性。试验结果表明:设计的水稻直播机控制系统在运行过程中,平均种距与系统设定种距相符,最大偏差满足系统设计需求;通过对播种均匀性进行检测分析,水稻播种机每穴芽种数量满足水稻播种农艺要求,播种合格率达到87%以上,表明系统能够有效地对水稻播种机播种均匀性进行控制,提高了水稻播种过程的机械化水平。

This paper takes rice direct seeding technology as the research object,analyzes the agronomic requirements of rice sowing process,determines the key technical parameters of rice direct seeding machine,and establishes the control system of rice direct seeding machine based on FPGA technology,and designs the hardware and software control modules of FPGA system to improve the sowing uniformity in the process of sowing.Through the system test analysis,the average seed distance of the rice planter control system designed in this paper is consistent with the set seed distance of the system,and the maximum deviation meets the design requirements of the system.Through the detection and analysis of the sowing uniformity,the number of sprouts per hole of the rice planter meets the agronomic requirements of rice sowing,and the sowing qualified rate reaches more than 87%.The uniformity of rice planter was controlled to improve the mechanization level of rice sowing process.