本文選題：二總線 + 通信協(xié)議　； 參考：《杭州電子科技大學(xué)》2013年碩士論文

【摘要】：近年來,我國的電氣火災(zāi)形勢(shì)持續(xù)嚴(yán)峻，電氣火災(zāi)的發(fā)生頻率和危害程度都在不斷增加。面對(duì)這種形式，國家相關(guān)部門相繼出臺(tái)了各項(xiàng)政策，大力推動(dòng)電氣火災(zāi)的預(yù)防。因此電氣火災(zāi)監(jiān)控系統(tǒng)的產(chǎn)品越來越多，產(chǎn)品質(zhì)量也是良莠不齊，許多產(chǎn)品具有成本偏高、結(jié)構(gòu)復(fù)雜、故障率高等問題。目前我國市面上的電氣火災(zāi)監(jiān)控系統(tǒng)通信大都是采用RS485總線或CAN總線等現(xiàn)場(chǎng)總線方式，對(duì)網(wǎng)絡(luò)布線要求較高。 針對(duì)目前電氣火災(zāi)監(jiān)控系統(tǒng)產(chǎn)品存在的問題，本文提出將在火災(zāi)自動(dòng)報(bào)警系統(tǒng)中成熟應(yīng)用的二總線技術(shù)，，運(yùn)用到電氣火災(zāi)監(jiān)控系統(tǒng)當(dāng)中。其實(shí)，基于二總線的電氣火災(zāi)監(jiān)控系統(tǒng)產(chǎn)品市場(chǎng)上已經(jīng)出現(xiàn)，但這類產(chǎn)品還有許多問題存在，比如總線上傳輸數(shù)據(jù)過少等。本文通過對(duì)已有的二總線協(xié)議的優(yōu)化和完善，設(shè)計(jì)出分工明確、結(jié)構(gòu)簡(jiǎn)單、成本少、故障率低的基于二總線的電氣火災(zāi)監(jiān)控系統(tǒng)產(chǎn)品。 本文首先說明了基于二總線的電氣火災(zāi)監(jiān)控系統(tǒng)的研究意義，然后通過對(duì)一種在火災(zāi)自動(dòng)報(bào)警系統(tǒng)中成熟應(yīng)用的二總線技術(shù)進(jìn)行認(rèn)真的分析和解讀，制定出自己的適用于電氣火災(zāi)監(jiān)控系統(tǒng)的二總線通信協(xié)議。 其次，國家標(biāo)準(zhǔn)《電氣火災(zāi)監(jiān)控系統(tǒng)》（GB14287-2005）、《建筑設(shè)計(jì)防火規(guī)范》（GB50016-2006）等對(duì)電氣火災(zāi)監(jiān)控系統(tǒng)產(chǎn)品的設(shè)計(jì)、功能以及質(zhì)量都做了規(guī)定和要求。本文根據(jù)這些標(biāo)準(zhǔn)和要求，結(jié)合市場(chǎng)實(shí)際需求，給出了系統(tǒng)的整體設(shè)計(jì)。系統(tǒng)主要有三部分組成：剩余電流式電氣火災(zāi)監(jiān)控探測(cè)器、電子編碼器、監(jiān)控設(shè)備。探測(cè)器本身沒有電源電路，依靠總線實(shí)現(xiàn)供電及信息傳遞的分時(shí)復(fù)用。電子編碼器的作用是實(shí)現(xiàn)對(duì)探測(cè)器的地址編碼及剩余電流報(bào)警值的預(yù)置。電氣火災(zāi)監(jiān)控設(shè)備用于監(jiān)測(cè)總線上各探測(cè)器的狀態(tài)，一旦檢測(cè)到線路上有報(bào)警狀態(tài)或監(jiān)控設(shè)備本身有故障，監(jiān)控設(shè)備就會(huì)發(fā)出聲光報(bào)警，并且存儲(chǔ)各種報(bào)警或故障信息。同時(shí)監(jiān)控設(shè)備有備用電源，可以保證其在短時(shí)間內(nèi)不斷電。 本文詳細(xì)介紹了監(jiān)控系統(tǒng)中這三個(gè)部分的硬件設(shè)計(jì)和軟件功能實(shí)現(xiàn)。硬件設(shè)計(jì)中著重介紹了探測(cè)器的剩余電流采樣電路及二總線接口電路，電子編碼器的升壓電路及二總線接口電路，以及監(jiān)控設(shè)備的主、備電源電路及人機(jī)交換部分等。在軟件設(shè)計(jì)中，對(duì)監(jiān)控系統(tǒng)的三個(gè)部分的微控制器都給出了詳細(xì)的軟件流程圖，并對(duì)程序中主要部分進(jìn)行了解析。 最后，本文歸納總結(jié)了整個(gè)基于二總線的電氣火災(zāi)監(jiān)控系統(tǒng)的設(shè)計(jì)成果，且通過實(shí)踐證明了其工作穩(wěn)定可靠，可以達(dá)到國家標(biāo)準(zhǔn)的要求。
[Abstract]:In recent years, the situation of electric fire in our country continues to be grim, and the frequency and harm of electric fire are increasing. In the face of this form, the relevant departments have issued various policies to vigorously promote the prevention of electrical fires. Therefore, there are more and more products of electric fire monitoring system, and the quality of the products is also intermingled. Many products have the problems of high cost, complex structure, high failure rate and so on. At present, the communication of electric fire monitoring system in our country is mostly based on RS485 bus or can bus, which requires high network wiring. Aiming at the problems existing in the products of electric fire monitoring system, this paper puts forward that the two-bus technology, which is used in automatic fire alarm system, will be applied to the electric fire monitoring system. In fact, the electric fire monitoring system based on two-bus has appeared in the market, but there are still many problems in this kind of products, such as too little data transmission on the bus and so on. By optimizing and perfecting the existing two-bus protocol, this paper designs an electric fire monitoring system based on two-bus, which has the advantages of clear division of labor, simple structure, low cost and low failure rate. This paper first explains the significance of the electric fire monitoring system based on the two-bus, and then analyzes and interprets the two-bus technology which is used in the automatic fire alarm system. A two-bus communication protocol for electrical fire monitoring system is developed. Secondly, the national standard "Electrical Fire Monitoring system" (GB14287-2005) and the "Building Design Fire Prevention Code" (GB50016-2006) have made regulations and requirements for the design, function and quality of electrical fire monitoring system products. According to these standards and requirements, this paper gives the overall design of the system according to the actual market demand. The system consists of three parts: residual current electric fire monitoring detector, electronic encoder, monitoring equipment. The detector itself has no power supply circuit, and it relies on bus to realize time-sharing multiplexing of power supply and information transmission. The function of the electronic encoder is to realize the address coding of the detector and the presetting of the residual current alarm value. The electric fire monitoring equipment is used to monitor the state of each detector on the bus. Once it detects the alarm state on the line or the monitoring equipment itself has a fault, the monitoring equipment will send out the acousto-optic alarm and store all kinds of alarm or fault information. At the same time, the monitoring equipment has a backup power supply to ensure that it will not be cut off in a short period of time. This paper introduces the hardware design and software implementation of these three parts in detail. In the hardware design, the residual current sampling circuit and two bus interface circuit of the detector, the boost circuit of the electronic encoder and the two bus interface circuit, as well as the main and standby power supply circuit and the man-machine exchange part of the monitoring equipment are introduced emphatically. In the software design, the detailed software flow chart is given for the microcontrollers of the three parts of the monitoring system, and the main parts of the program are analyzed. Finally, this paper summarizes the design results of the whole electric fire monitoring system based on two-bus, and proves its work stability and reliability through practice, which can meet the requirements of the national standard.
【學(xué)位授予單位】：杭州電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：X924.3;TP277

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張瑛,李娟,牟龍華;基于二總線的漏電保護(hù)系統(tǒng)[J];電力自動(dòng)化設(shè)備;2003年09期

2 ;XY·CN總線供電及通信系統(tǒng)(連載)——基于XY·CN總線的醫(yī)院呼叫系統(tǒng)[J];單片機(jī)與嵌入式系統(tǒng)應(yīng)用;2008年12期

3 劉和平;高尚勇;余銀輝;;觸摸屏液晶控制器與DSP的接口設(shè)計(jì)和應(yīng)用[J];電子測(cè)量技術(shù);2008年04期

4 關(guān)少寧,邢曉正,陳曉東;二總線制多終端模擬量監(jiān)測(cè)系統(tǒng)[J];電子技術(shù)應(yīng)用;1997年12期

5 劉洪英,史小軍;帶中斷輸出的實(shí)用峰值檢波電路設(shè)計(jì)[J];電子器件;2003年01期

6 馬興富;;電氣火災(zāi)監(jiān)控系統(tǒng)在實(shí)際應(yīng)用中的探討[J];廣東化工;2012年04期

7 韓友峰;;電氣火災(zāi)的分析及預(yù)防措施探討[J];能源技術(shù)與管理;2010年05期

8 李凌,虞禮貞;電壓幅值可達(dá)毫伏數(shù)量級(jí)的小信號(hào)峰值檢測(cè)電路的設(shè)計(jì)[J];南昌大學(xué)學(xué)報(bào)(理科版);2003年04期

9 金余恒，張伽虹，王秉湖;二總線火災(zāi)報(bào)警和控制系統(tǒng)編碼與通訊的一種方法[J];核電子學(xué)與探測(cè)技術(shù);1995年02期

10 王斌;趙云;尹云輝;;一種能量/信息時(shí)分傳輸?shù)亩偩�技術(shù)研究[J];微型機(jī)與應(yīng)用;2012年09期

本文編號(hào)：2054411