一种单粒排种器单片机检测系统设计

Design of single chip microcomputer detection system based on RS232 protocol

摘要:

使用气力式油菜单粒排种器、勺链式排种器受到漏播率高影响，导致系统检测效果较差，为了解决上述问题，提出了基于RS232协议的单粒排种器单片机检测系统设计。根据单片机检测硬件结构，使用带有RS-232串行接口的单片机，将霍尔传感器感应到的信号传递至单片机，获取标准排种脉冲。遵循RS232协议设计的红外线光电传感器电路，确定故障排种管具体位置，设置声光报警装置，防止在嘈杂环境管理者听不到警报，避免漏播情况产生。设计单粒排种器粒子播种质量检测和漏播实时检测流程。实验结果表明，该系统与预期排种效果一致，且漏播率最低为0.9%，具有良好检测效果。

Abstract:

The pneumatic single seed metering device and spoon chain metering device are affected by the high miss seeding rate, which leads to the poor detection effect of the system. In order to solve the above problems, a single-chip microcomputer detection system based on RS232 protocol is proposed. According to the hardware structure of single-chip microcomputer, the signal sensed by Hall sensor is transmitted to single-chip microcomputer by using single-chip microcomputer with RS-232 serial interface to obtain standard seed metering pulse. According to the RS232 protocol, the infrared photoelectric sensor circuit is designed to determine the specific location of the fault metering tube, and the sound and light alarm device is set to prevent the manager from hearing the alarm in the noisy environment and avoid the occurrence of missing broadcast. The process of single seed metering device particle seeding quality detection and missing seeding real-time detection was designed. The experimental results show that the system is consistent with the expected seeding effect, and the lowest miss seeding rate is 0.9%, which has good detection effect.