目的 提高盒饭包装饭菜计量控制系统分发饭菜份量的准确性和盒饭打包的效率。方法 提出一种基于PLC的盒饭包装饭菜计量控制系统，该系统可在盒饭包装过程中对饭菜进行较准确的计量和分配。结果 通过组态软件对该基于PLC的饭菜计量控制系统进行仿真和验证，其结果达到了预期，加快了盒饭包装的效率，并提高了包装的智能化水平。结论 该基于PLC的盒饭包装饭菜计量控制系统，可以较好地控制盒饭中饭菜的质量，相比现有盒饭包装方法可大大提高盒饭的包装效率，保证了每个盒饭中的饭菜份量，节约了人力成本。

The work aims to improve the accuracy of distributed food amount of food measurement control system for packed meals and the packaging efficiency. A kind of food measurement control system for packed meals based on PLC was proposed, which could measure accurately and distribute the amount of food in the process of packaging the meals. The food measurement control system based on PLC was simulated and validated by configuration software. The simulation and validation achieved the desired results, accelerated the packaging efficiency and improved the intelligent level of the packaging. The food measurement control system for packed meals based on PLC may control the amount of food in lunch box very well. Compared to the current boxed lunch packaging method, it can greatly improve the packaging efficiency of boxed lunch, ensure the food amount in each boxed lunch and save the manpower costs.