基于PLC的水果自动分拣系统设计

Design of a PLC-Based Automatic Fruit Sorting System

摘要: 随着水果产业向规模化、智能化方向发展，传统人工分拣方式因效率低、成本高、损伤率大等问题已难以满足现代分拣需求。本文设计了一套基于西门子S7-1200 PLC的水果自动分拣系统，通过集成颜色、重量、尺寸等多种传感器，实现对苹果等多类水果的自动化识别与分拣。系统采用TIA博途V18进行程序设计，利用PLC SIM进行仿真验证，具备高精度、高效率、低误差等特点。仿真验证表明，该系统分拣误差率低于1%，每小时处理量可达2000件以上，显著提升了分拣效率与果品质量一致性。

Abstract: As the fruit industry advances toward large-scale and intelligent operations, traditional manual sorting methods struggle to meet modern demands due to low efficiency, high costs, and significant damage rates. This paper presents an automated fruit sorting system based on the Siemens S7-1200 PLC. By integrating multiple sensors for color, weight, and size detection, the system achieves automated identification and sorting of various fruits, including apples. Programming was conducted using TIA Portal V18, with simulation verification performed via PLC SIM. The system demonstrates high precision, efficiency, and low error rates. Field testing confirms a sorting error rate below 1% and a processing capacity exceeding 2,000 units per hour, significantly enhancing sorting efficiency and fruit quality consistency.