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The Fire Insulation and Anti-theft Alarm Research Based on AT89S51

Author: XiaoHuaiChun
Tutor: MaWenLie
School: Jiangxi Agricultural University,
Course: Agricultural Electrification and Automation
Keywords: Multi-sensor information fusion technology Sensors Sound-light alarm Concentrated area alarm Regional networking
CLC: TU89
Type: Master's thesis
Year: 2011
Downloads: 814
Quote: 2
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Abstract


With the rapid development of social economy、science and technology, especially the speeding pace of life, the demand of fire insulation devices and anti-theft equipments increased greatly for people, as well as the larger demand for such as monitoring and alarm system accident for theft and fire。The burglar and fire alarms system has grown out of nothing and developed from the simple to the complex with higher and higher intelligent degree。At present most of manufacturers focus on developing large burglar and fire system using in large warehouse、super malls、high-grade office buildings、hotels and so on, It adopts concentrated area alarm control mode with complex system and high cost。While in residential areas、computer room、office and other small fire units, need to set up a single regional networking、cheap and practical fire security detection alarm, therefore, developing a kind of simple structure、low cost fire alarm system is very necessary。This paper researches on AT89S51 as the core of the fire insulation and anti-theft alarm system, not only works on alarm, but are able to display alarm information category, then chooses temperature sensor、infrared sensors as detective components, using multi-sensor information fusion technology design can be used on fire and theft alarming in small model of agricultural production。The burglar and fire alarms designed in this paper can be operated reliably and simply, to prevent stealing and firing。It Includes fire alarm and trespassed alarm, Using sensor circuit testing the illegal intrusion of the human body or fire, once appearing accident, sensor circuit testing to signal, sent to the microcomputer controller host requests, after microcontroller response, driving audible and visual alarm device and display alarming category by digital tube。This device is equipped with stable power, to enhance the safety、reliability and stability。This paper introduces the main functions characters and detailed working principle、design ideas and realization process of the alarm from two aspects of hardware and software。If with the anti-interference design, the device has good anti-interference ability。This equipment of low cost、practical、flexible and versatile function, can be used for many concise places such as agricultural production、warehouses and families and so on。Through theoretical analysis and field operation test, proved the performance of the design scheme is reliable and reasonable that could replace part of expensive products。

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