【毕业论文设计】大型商场客流量统计预警系统设计.doc

本科毕业设计说明书
大型商场客流量统计预警系统设计
LARGE MALL TRAFFIC STATISTICAL WARNING SYSTEM DESIGN
学院(部): 机械工程学院
专业班级: 测控07-1
学生姓名: 李奎
指导教师: 陈国凡讲师

2011年 6月 5日
大型商场客流量统计预警系统设计
摘要
在工业自动化领域,可编程控制器作为自动控制的重要组成部分,已成为大多数自动化系统的设备基础。设计商场客流量统计系统旨在解决统计商场客流的任务。
本设计通过分析商场客流的特点,制定了基于PLC的客流量统计系统的设计方案,详细阐述了主要包括PLC、语音芯片、液晶显示器等元器件的工作方式、执行过程等内容,完成了控制系统的硬件和软件设计,实现了统计商场客流的任务。商场客流量的统计能帮助商场管理人员更合理地经营,做好预防意外事故的准备,具有很大的应用价值。
关键词:可编程控制器,客流量,控制系统,硬件和软件设计
LARGE MALL TRAFFIC STATISTICAL WARNING SYSTEM DESIGN
ABSTRACT
In the industrial automation domain, the programmable controller took the automatic control the important constituent, has e the majority automated system the equipment the market passenger capacity statistics system to be for the purpose of solving counts the market passenger flow the duty.
This design through analyzes the market passenger flow the characteristic, has formulated based on the PLC passenger capacity statistics system design proposal, elaborated in detail mainly includes PLC, pronunciation chip, liquid-crystal display and so on contents and so on primary device workings, implementation, pleted the control system hardware and the software design, realized has counted the market passenger flow the market passenger capacity statistics can help the market administrative personnel to manage reasonably, prepare for the prevention accident, has the very big application value.
KEYWARDS:Programmable controller, passenger capacity, control system, hardware and software design
目录
摘要 I
ABSTRACT II
1绪论 1
1
1
2
2
2系统设计方案的论证及比较 2
PLC的选择 2
4
5
3系统硬件设计 5
6
激光检测电路 6
激光传感器 6
激光检测电路 6
WT588D语音播报电路 7
WT588D语音芯片 7
语音播报电路 9
10
10
12
液晶显示模块与PLC的硬件接口电路 13
PLC的软件设计 14
PLC控制中心 14
PLC的程序执行过程 14
PLC的I/O分配 17
PLC的I/O响应时间 17
PLC使用的注意事项 18
4 系统软件