基于虚拟仪器技术的渔船超低温冷库制冷监控系统研究

摘要

为了解决金枪鱼渔船超低温制冷控制系统自动化程度低,监控效果不理想和监控条件恶劣等问题,提出采用虚拟仪器技术,基于LabVIEW平台设计开发了一套金枪鱼渔船超低温冷库制冷监控系统,实现了冷库机组数据的实时监测、数据及动态曲线的显示、数据的处理及保存、系统控制参数的设定、电子膨胀阀实时状态检测和电子膨胀阀控制及输出显示等功能.试验结果表明:该系统运行稳定,自动化程度高,测控及时准确,人机交互界面友好,操作简单,功能完善.%There are several problems in the ultra-low temperature refrigeration control system on the tuna fishing boat, including the low degree of automation, unsatisfactory monitoring effect and poor monitoring conditions.In order to solve these problems, a tuna fishing boat ultra-low temperature cold storage refrigeration monitoring system was designed and developed by using the virtual instrument technology, based on LabVIEW.This system achieved a real-time monitoring, and displayed a unit's data and dynamic curves.Moreover, it also included a data processing and storage, a control parameter settings, an electronic expansion valve real-time status monitoring, a valve control and an output display.The experimental results indicated that this system could be operated stably and automatically, and used to get detection timely and accurately, with a friendly human-machine interface.