关键词:空调实验系统、触摸屏、PLC、组态
Abstract
Intelligent building in the modern building automation systems, central air conditioning system is an important component, in order to provide healthy, comfortable living and efficient working environment must be based on the actual situation of intelligent control air temperature, humidity, wind speed, air cleanliness, in recent years, intelligent building indoor air quality problems become the focus of national scholars.
As the actual needs of society in recent years, lots of universities have set up the intelligent building automation courses, and central air conditioning systems are often used as the focus of instruction. But for the students a comprehensive understanding and grasp of the central air-conditioning such a relatively complex and large systems, theoretical teaching alone is not enough. To enable students to in-depth understanding of the composition of the central air conditioning system, control methods and performance indicators, need to develop a special simulation experiment system central air conditioning.
Based on this, the issue related to teaching based on theory course content and requirements, develop a set of intelligent buildings in the laboratory subsystem - Air conditioning experiment simulation system, the system is based on touch screen and PLC control, can do simulate the actual air-conditioning control system parts of the operation and control. Able to achieve simulation run central air conditioning cooling, heating run, you can switch manual and automatic modes.
This set of system integration of the PLC control technology, interactive touch screen technology, configuration control, computer communications technology, and many practical techniques, not only enables students to the central air conditioning system more in-depth understanding of, and may combine the contents of application-related courses to control and improve the capacity of practical application. Air-conditioning system simulation test bench comes with a number of spare jacks, switches and PLC node, in later practice, students need according to their subject, try the new control method, the addition of new pilot projects, to meet the needs of teaching and research .
Key words: Air conditioning experiment system, touch screen, PLC, configuration