基于LONWORKS总线的智能楼宇空调系统的设计
关键词： lonworks总线；节点；神经元芯片；监控系统
Based on LONWORKS fieldbus intelligent building air conditioning system design
Abstract: Step by step in the process of development of intelligent building, brought convenience to work life, it is have high requirements for the building of the control system. The intelligent building control system based on lonworks also has become the most mainstream, one of the most competitive field bus. This design will be the main research of air conditioning system, its load accounts for more than half of the building load, relations with people work and the quality of life, has the very high research value. On the basis of neuron chip and lontalk protocol understanding, combined with the air conditioning control principle, development and design of the node. System adopts the DDC controller data collection and analysis of the building, and feedback in the past, direct control, realize real-time monitoring of the air conditioning system. And the design of the system hardware is a crucial step, the neuron chip and MCU, and man-machine interface hardware together, and map system the principle of sensor nodes, the system has the feasibility.
Keywords: Lonwoks; Node; Neuron chip; Monitor and control system
目 录
摘要 i
Abstract i
目录 ii
1.绪论 1
1.1智能楼宇的发展过程及展望 1
1.2楼宇自动化控制系统的发展过程 1
1.3Lonworks技术的发展及前景 2
1.4本课题研究的内容及意义 4
2.lonworks技术 5
2.1概念 5
2.2神经元芯片 6
2.3 lontalk协议 8
3.DDC控制器及空调系统 9
3.1 DDC控制器 9
3.2变风空调简介 10
3.2.1概述 10
3.2.2变风量空调系统 11
4 基于主机的温度测控节点的设计 14
4.1系统设计要求 14
4.2系统总体功能 14
4.3智能节点概述 15
4.4温度测控节点的硬件设计 16
4.4.1AT89S52单片机资源分配 16
4.4.2神经元芯片接口电路设计 17
4.4.3 I-Wire单总线技术 20
4.4.4.数字温度传感器DSl8820 21
4.4.5人机接口电路设计 21
4.5空调监控系统 22
5总结与展望 24
致谢 25
参考文献 26
1.绪论
1.1智能楼宇的发展过程及展望
1984年，美国康涅狄格州的哈特福市将一幢老的金融大厦进行改造，把大厦内的空调，电梯，照明，防盗等设备采用了计算机控制，这就是世界上的第一座智能建筑，city place，也称都市大厦。其全新的设计与服务成为智能建筑跨时代的里程碑。