目的 解决机械探针式烟支检测在检测模盒内烟支时存在误检和漏检的问题。方法 设计一种基于视觉成像技术的高速包装机模盒内烟支检测装置，研究其关键技术，包括工业相机、LED光源和控制器的安装，动态图像采集和图像处理算法，PLC控制程序的设计等。结果 该烟支检测装置安装使用后，对模盒内烟支缺陷产品检测的准确率≥98%，误检率≤1%。结论 该烟支检测装置能有效解决机械探针式烟支检测误检和漏检的问题，提高了产品质量，降低了废烟消耗，提高了设备有效作业率，可推广应用于行业内所有包装设备上。

The work aims to solve the problems of false detection and missing detection of cigarettes in the mold box by mechanical probe. A cigarette detection device used in the mold box of high-speed packaging machine was designed based on visual imaging technology. Through the research on the key technologies, including the installation of industrial camera, LED light source and controller, dynamic image acquisition and image processing algorithm, and design of PLC control program. After the cigarette detection device was installed and used, the detection accuracy of defective cigarettes in the mold box was ≥ 98%, and the false detection rate was ≤ 1%. The cigarette detection device can effectively solve the problems of false detection and missing detection of cigarette by mechanical probe, improve the product quality, reduce the waste cigarette consumption, and improve the effective operation rate of equipment and can be widely used in all packaging equipment in the industry.