文档介绍：专科毕业设计(论文)
设计题目: 船舶火警报警系统PLC控制设计
系部: 电气工程系
专业: 电气自动化(工业企业)
班级: 工企091301
姓名: 学号: 093905130142
指导教师: 职称讲师
2012年6月南京
摘要
二十世纪九十年代以来,计算机的不断发展引发了各个领域的革命性变革。航运界也受其影响,使得现代航运对船舶自动化程度和信息集成程度的要求也越来越高。为了适应现代火警报警自动化的要求,PLC控制逐渐取代继电接触器控制成为船舶控制的主要环节,使控制系统更加安全、迅速、可靠。船舶在正常航行过程中,如果发生火灾,传统的继电器控制的火警报警器,虽然能够提供报警但是其容易发生故障而且不易察觉。然而采用PLC控制,当探测回路探测到火灾时,将火灾信号转变为电信号,输入到主机的输入回路,输入回路把模拟量的电信号转变为数字信号,能够排除各种干扰,,得到的结果有更好的灵敏性和正确性,从而更加安全可靠。上述设计满足了《2006钢质海船建造入级规范》的迅速、实时、可靠、直观等要求。所以用PLC控制火警报警器就能够使全船安全系数得到大大的提高。
关键词:火警探测器 PLC
Abstract
Since the 1990s, the continuous development of puter triggered a revolutionary change in all fields. The shipping industry is also affected by the requirements of modern shipping ship automation and the degree of information integration are increasingly high. In order to meet the requirements of modern fire alarm automation, PLC control, gradually replacing the relay contactor control the main part of ship control, the control system more secure, fast and reliable. The process of normal navigation of the ship, fire, traditional relay control, fire alarm, even though it can provide an alarm but it is prone to failure and difficult to detect. However, PLC control, when the detection circuit to detect the fire, the fire signals into electrical signals, the input circuit of the input to the host, the input circuit of the analog signal into digital signal, to remove all obstacles to get the results have a better sensitivity and accuracy, and thus more secure and reliable. The above design to meet the 2006 s
teel ship construction of classification rules, "the rapid, real-time, reliable, intuitive requirements. PLC control a fire alarm will be able to make the factor of safety of the ship were significantly enhanced.
Keywords fire alarm detector PLC
目录
1 引言 1
2 船舶火警报警系统简介 2
船舶火警系统的基本组成 2
船舶火警系统的功能 2
3
3 船舶火警报警系统的硬件设计 3
火警报警系统元件选择 3
5
4 船舶火警报警系统的软件设计 8
火警报警系统框图 10
I/O地址表 11
PLC 外围接线图 11