基于STM32微处理器的播种机工况故障采集系统设计

随着我国信息化水平的不断提高,机械自动化、计算机控制系统和测试计量行业的不断发展,使得智能控制被广泛的应用到农业生产、工业生产和高等研究等各个领域。为此,基于STM32微处理器设计和研发了播种机工况故障采集系统。系统以STM32微处理器为核心,硬件部分主要包括信息采集、人机交互、智能控制、报警、自动补偿和电机驱动等模块,主要作用是完成对传感器节点的数据采集、分析、处理和控制功能;软件部分主要包括速度信息、播种量信息、漏播判断、开沟器堵塞和种箱空检测4个子程序。试验结果表明:所选用的TAP-4 0 LS4 0 N1-D3传感器能够精准检测到种子流、种箱排空、输种管堵塞等信号;在一定干扰环境下,系统漏播报警的准确率均在97%以上,实现了播种机工况故障精确采集功能,且该系统稳定性高,错误率低,具有十分宽广的应用前景。

The Design of Seeder's Malfunction Collection System Based on STM32 Microprocessor

Along with the constant improvement regarding the level of information in China as well as the continuous de -velopment of Mechanic automation , computer controlling system and measurement industry .The intelligence control has been applied extensively in agricultural production ,industrial manufacturing , advanced study and the like .Consequently , the seeder's malfunction collection and processing system is designed and created on the basis of STM 32 microprocessor . With the STM32 serving as the fundamental part , the system's hardware primarily include information collection , interac-tion between users and machine , intelligence control , alarming , auto-compensation ,motor drive and so forth , which per-form functions such as collecting , analyzing , processing and controlling the data of sensor node .The software of the sys-tem chiefly incorporate four subroutines known as speed status ,seeding rate , judgement of miss-seeding , the detection of opener's blocking and vacant seed case .The results of experiment indicate that the selected TAP-40 LS40 N1-D3 is able to detect the seed flow ,vacant seed case as well as the blocking of seed tubes .The accuracy rate of miss-seeding alarm reaches more than 97% under certain interference environment , which achieves the precise malfunction collection of the seeder .Furthermore , the system possesses high stability with low error rate , which means a wide application prospect for it.