| 列车火灾报警系统的设计与实现 |
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| 引用本文： | 徐惠钢,张晓明. 列车火灾报警系统的设计与实现[J]. 传感器与微系统, 2004, 23(2): 65-67,70 |
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| 作者姓名： | 徐惠钢 张晓明 |
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| 作者单位： | 1. 南京理工大学,自动化系,江苏,南京,210094;常熟理工学院,物理系,江苏,常熟,215500
2. 南京理工大学,自动化系,江苏,南京,210094 |
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| 摘 要： | 介绍了列车火灾报警系统软硬件设计原理,采用预警和报警结合的方法,通过预警提高发现火灾隐患的灵敏度,通过进一步的报警检测提高抗干扰性;采用1线温度测量网测量温度与烟雾监测相结合的方法;利用原有供电线路设计的直流电源线载波通信方式以方便布线,采用了一系列减小功耗的措施以适应远距离传输。该系统结构简单、安装方便、检测灵敏度高,对设计楼宇火灾报警也具有实用参考价值。
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| 关 键 词： | 火灾报警 数字温度计总线 直流电源载波调制 单片机 |
| 文章编号： | 1000-9787(2004)02-0065-03 |
Design and realization of fire-alarm-system in train |
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| XU Hui-gang. Design and realization of fire-alarm-system in train[J]. Transducer and Microsystem Technology, 2004, 23(2): 65-67,70 |
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| Authors: | XU Hui-gang |
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| Affiliation: | XU Hui-gang~ |
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| Abstract: | The design principle of the software and hardware of fire-alarm-system used in train is introduced. A prewarning method along with an alarming method are used in the system. A prewarning method is used to detect incipient fire danger rapidly, while an alarming one is to discriminate between real fire and interferences through further measurement and analysis. 1-wire bus thermometer system combined with smoke detector are used to improve alarm sensitivity. DC-Modulate communication through power supply line is used to facilitate connecting. Furthermore, some methods are used to reduce power consumption. With characters of simple structure, easy installation and high measure sensitivity, this alarm system is also of reference value for building fire-alarm-system design. |
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| Keywords: | fire alarm digital thermometer bus DC carrier wave modulating single chip processor(SCP) |
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