传统奶牛养殖是根据养殖户经验进行的养殖,养殖过程耗时、耗力且养殖成本高,机电一体化装备研发是提升奶牛规模化养殖的重要一环。本文设计一套基于可编程逻辑控制器（PLC）的泌乳牛舍环境监控系统,结合PLC控制和物联网技术,实现PLC组态触摸屏和物联网平台的通讯,系统能实时显示当前环境参数、根据环境参数变化自动调整牛舍灯光和风扇等设备、远程发送故障报警信息等,减轻养殖场（户）负担,自动改善规模化养殖场牛舍环境,提高奶牛产奶量和质量。系统设计完成后应用于奶牛养殖场,使用过程中系统可靠稳定,界面操作方便,具有较好推广应用价值。

Traditional dairy farming is based on the experience of farmers,the breeding process is time-consuming,labor-intensive and high breeding cost, mechatronics equipment research and development is an important part of improving the large-scale breeding of dairy cattle. This paper designed a set of environmental monitoring system based on programmable logic controller（PLC）,combined with PLC control and Internet of Things technology,to realize PLC configuration touch screen and IoT platform communication,the system can display the current environmental parameters in real time,automatically adjust the barn lights and fans and other equipment according to the change of environmental parameters,remotely send fault alarm information,etc.,reduce the burden of farms （households）,automatically improve the environment of large-scale farm barns and increase milk production and quality of dairy cows. After the system design is completed,it is applied to dairy farms,and the system is reliable and stable during use,and the interface is convenient to operate,which has good promotion and application value.