基于plc智能建筑停车场监控系统的研究与实现.doc

摘要
智能建筑将是信息社会最重要的基础设施之一。停车场管理控制系统则是现代建筑中不可或缺的一部分。本文在对停车场管理及控制系统基本功能研究的基础上改进其系统构成及控制流程,应用PLC作为现场控制器,对现场设备进行信号采集与控制。并利用监视PC机、组态软件、PLC共同构建对停车场车位状态的监控体系。主要工作有:
、变化。
,在此基础上提出分区管理模式并模块化设计管理流程。
,充分研究了相关系统组件的工作原理及性能指标,据此进行系统功能设计及硬件选型。
,研究了PLC网络的构成技术及其网络通信协议,采用AS-I现场总线技术构建现场设备的信号采集与传输系统;选用自由口通信模式,在充分调研系统信息通讯需求基础上提炼通讯信息,自定义PLC与PC机的通信协议。
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,并完成PLC控制程序的设计。
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关键词:智能建筑,停车场,监控系统,PLC,组态软件
ABSTRACT
Intelligent buildings will be one of the most important infrastructures in information society,and the management and control system is an indispensable part for parking lots in intelligent buildings. Based on the research of basic function of management and control system applied to parking lots,this paper improves the construction of control system and flow sequence,utilizing PLC as the field controller to collect signals and control equipments. Finally,monitor and control system consisted of PC monitor,configuration software and PLC are used to monitor the state of parking space in parking lots. Major work of this thesis includes:
1. Studies on the function of parking lots and its control systems as well as the developments and changes in intelligent buildings.
on analyzing of the management and control function requirements for a typical parking lot,we put forward zoning management and modularize the management of design workflow.
basis of the requirements of management and control function,operating principles and performance indices of related ponents,we designed the system function and chose the hardware.
use of PLC as the field controller,we studied the constitute technique munication protocol about the work,utilizing the AS-I field bus technology to construct the signal collection and transmission system for field equipments; sufficient study on the system information tra