基于S7-1200的全自动洗车控制系统设计

Design of PLC-Based Automatic Car Wash Control System with S7-1200

摘要: 在汽车保有量不断上升、洗车服务高效化与标准化双重需求驱动下，传统手工洗车存在作业效率低、清洗质量不稳定、人工成本高及水资源浪费突出等弊端，已无法满足现代洗车行业发展要求。为此设计以西门子S7-1200PLC为核心的全自动洗车控制系统，整合位置检测传感器、变频器、高压泵、滚刷及烘干等执行机构，构建感知、控制与执行一体化硬件平台。系统采用TIAPortal完成程序编写与HMI组态，设置自动、手动两种运行模式。自动模式可按预洗、泡沫清洗、清水冲洗、烘干时序自动运行，可适配不同车型参数；手动模式支持触摸屏与实体按钮临时调控，兼具状态监测与故障报警功能。调试结果表明，该系统运行稳定、流程衔接准确，可提升洗车作业效率与标准化水平，降低人力投入，具备良好实用与推广价值。

Abstract: With the continuous growth of car ownership, traditional manual car washing has the disadvantages of low efficiency, unstable cleaning quality, high labor cost and serious water waste, which can no longer meet the requirements of modern car washing industry. A fully automatic car washing control system based on Siemens S7-1200 PLC is designed. The system integrates position sensors, frequency converters, high-pressure pumps, roller brushes and drying actuators to form an integrated hardware platform of perception, control and execution. TIA Portal is used for programming and HMI configuration with automatic and manual modes. In automatic mode, it operates automatically in the sequence of pre-washing, foam cleaning, water rinsing and drying, and can adapt to parameters of different vehicle types. Manual mode supports temporary adjustment through touch screen and physical buttons, with status monitoring and fault alarm functions. The debugging results show that the system runs stably with accurate process connection, which can improve car washing efficiency and standardization, reduce labor cost, and has good application and promotion value.