以印刷套准智能化问题为研究对象，制定了基于PLC与图像联合控制的印刷套准控制系统总体方案，并就图像处理、数据存储和通讯、硬件选型等系统实现的关键技术进行了研究。经实验验证，该系统实现了印刷套准标记的在线检测和自动校准，套准标记灵活、多样。通过串行设备服务器组成以太网，实现了印刷全过程的远程监控。

The overall plan of printing register control system based on PLC and image joint control was developed to solve printing register intellectualization problem. The key technologies of printing register control system were studied, which were image processing, data storage and communication, and hardware selection, etc. The experimental results proved that the automatic detection, automatic calibration of the register marks can be realized. The registration marks is flexible and diverse. Remote management of printing process is realized with serial device server through Ethernet.