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On the Hardware Design of Remote Maintenance System of Central Air Conditioning

Author: KongDeFei
Tutor: LuYiQin；ChenSuoTang
School: South China University of Technology
Course: Electronics and Communication Engineering
Keywords: Remote Control RS-485 Central Air-conditioning Remote Maintenance System
CLC: TB657.2
Type: Master's thesis
Year: 2011
Downloads: 22
Quote: 0
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Abstract


With the development of Central Air-conditioning, the technical demand in the central control rises. It is necessary in many conditions to build up the central management and monitoring systems.This thesis introduces the design and development processes in the hardware and overall network topology of the central air-conditioning remote maintenance system. Firstly, it introduces the selection of network communication protocols of the central air-conditioning remote maintenance system, including that of the onsite communication bus, as well as the wired and wireless network protocols. Secondly, it introduces the hardware design of the network connection module and the central control module and the selection of key components. Also it analyses the possible factors which might influence the speed and reliability of data transmission in RS-485 Bus. Thirdly, it introduces the construction of the remote monitoring center in the central air-conditioning remote maintenance system and the selection of the wired and wireless routers. Furthermore, it also covers the networks of on-site equipments and the network of remote maintenance, as well as the topology of the projector-screen system in the remote monitoring center. Finally, it introduces some testing methods and results on certain hardware components in the network connection module and the central control module. Through experiments, the reliability of this hardware design gets its sound proofs.The successful application of the MIDEA central air-conditioning remote maintenance system, not only contributed to a considerable economic benefit, but also largely enhanced the brand image of MIDEA products, and therefore further established its domestic leading position in the field of central air conditioning.

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CLC: > Industrial Technology > General industrial technology > Refrigeration Engineering > Refrigeration machinery and equipment > Refrigeration Equipment > Air conditioner
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