| With the development of national economy and Constant improvement of the modernized living standard, The application of the system of the central air conditioner is more and more extensive. But because the power consumption of central air conditioner system is very heavy, using computer to control the system of central air conditioner becomes an important subject.This thesis states that the computer long-ranged controls the system of distributed central air conditioner system ,it adopts the advancing on-the-spot bus technology (profibus-technology), offer intellectual control for system of the distributed central air conditioner. Comprehensive distributed central air conditioner system of this control system , Profibus technology , RS-485 serial communication and the intellectual control technology , to an organic whole, have higher integrated , intelligent and technological content.This text provides a distributed central air conditioner system and controls the design plan intelligently and long-range , and design according to a concrete market air conditioner system, including the hardware of the computer control system and software part.The on-the-spot bus technology is an important component of computer long-ranging control, its main function is that through the main website of the bus and from the control of the station, pass the transmission of RS-485 serial communication interface, controls the operation state of the on-the-spot apparatus.In addition, this text has also introduced the operation principle of the on-the-spot bus technology and implementation method , and has done the prospect to the relevant control technology of the central air conditioner.The full text is divided into seven chapters, the concrete content is as follows:Chapter one introduces the development overview , subject background and research meaning of the central air conditioner system of the domestic and international.Chapter two introduces the system composition , operation principle , every part... |
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