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畢業(yè)設(shè)計(jì)---火災(zāi)報(bào)警系統(tǒng)研究與實(shí)施(文件)

 

【正文】 學(xué)出版社 ,2021 [7] 于冶會(huì) .對(duì)調(diào)整儀表用蜂鳴器振動(dòng)規(guī)范的探討 .傳感器世界 ,2021 [8] 陳光東 .片微型計(jì)算機(jī)原理接口技術(shù) .武漢:華中理工大學(xué)出版社 ,1999 [9] 張玉蓮 .子 CAD( Protel99SE)實(shí)訓(xùn)指導(dǎo)書 .西安:西安電子科技大學(xué)出版社 ,2021 [10] 王福瑞 .片機(jī)測(cè)控系統(tǒng)大全 .北京:航空航天大學(xué)出版社 ,1998 [11] 林立 .單片機(jī)原理及應(yīng)用 ——基于 Proteus 和 Keil :電子工業(yè)出版社 ,2021 [12] 何衍慶 .制系 統(tǒng)分析設(shè)計(jì)和應(yīng)用 .化學(xué)工業(yè)出版社 ,2021 [13] 楊振江 .A/: 西安電子科技大學(xué)出版社 ,1998 [14] Richard to Electronic Circuit Design. 北京:電子工業(yè)出版社 ,2021 [15] Richard C. Engineering Handbook. CRC Press LLC,2021 石家莊鐵道大學(xué)四方學(xué)院畢業(yè)設(shè)計(jì) 27 致 謝 在本次畢業(yè)設(shè)計(jì)中,我得到了指導(dǎo)老師的熱心指導(dǎo)。同時(shí),她還提供給我們專門的各種設(shè)備及場(chǎng)所,使我在調(diào)試過程中能夠有足夠的時(shí)間。Vision2 We discusses the features and advantages of the 8051 microprocessor family and the development tools available from Keil Software. We have designed our development tools to help you quickly and successfully plete your job. For this reason, our tools are easy to use and are guaranteed to help you achieve your design goals. The 8051 has been available since the early 1980’s. With a wide variety of outstanding features and peripherals, the 8051 CPU core is destined to see service well into the next century. More than 200 different 8051 derivatives are available today from a variety of chip vendors. More than half of all embedded projects with a CPU use members of the 8051 embedded processor, the 8051 has no equal. A typical 8051 family member contains the 8051 CPU core, data memory, code memory, and some versatile peripheral functions. A flexible memory interface lets you expand the capabilities of the 8051 using standard peripherals and memory devices. Singlechip microputer as an important branch of a wide range of applications, has developed rapidly. Since the birth of singlechip has been developed into a series of nearly hundreds of models, from the current singlechip solution in the longdistance munication between the various program analysis, RS485 bus munication mode structure because of simple, inexpensive, munications and data transfer rate from the appropriate characteristics have been widely used in instrumentation, intelligent sensors distributed control, building control, alarm monitoring and other fields. System Overview Keil C51 software provides a rich library functions and powerful integrated development and debug tools, the whole Windows interface. Another important point, just look at the piled assembly code generated, you can feel the Keil C51 generated object code efficiency is very high, the majority of the assembly code generated 石家莊鐵道大學(xué)四方學(xué)院畢業(yè)設(shè)計(jì) 29 statement is very pact, easy to understand. In the development of largescale software to better reflect the advantages of highlevel language. The following details the various parts of Keil C51 development system function and use. Keil C51 microcontroller software development system of the overall structure of the The overall structure of C51 kit, uVision and Ishell are C51 for Windows and for Dos integrated development environment (IDE), to plete edit, pile, connection, debugging, simulation and so the whole development process. Developer IDE itself, or other available editor to edit the C or assembler source file. Then C51 and C51 respectively by the piler generates object files piled (. OBJ). Generated object files created by LIB51 library files, together with library files generated by the L51 。在此,我向身邊關(guān)心幫助我的同學(xué)致以誠(chéng)摯的謝意 !另外,系里的領(lǐng)導(dǎo)和老師 也給了我們必要的指導(dǎo),對(duì)領(lǐng)導(dǎo)們表示衷心的感謝 !最后感謝學(xué) 院對(duì)我這幾年的培養(yǎng),我一定不負(fù)眾望,為學(xué)院爭(zhēng)光。幫助解決畢業(yè)設(shè)計(jì)中遇到的許多問題。但是基本達(dá)到了我們預(yù)期的產(chǎn)品功能的實(shí)現(xiàn),完全符合了我們?cè)O(shè)計(jì)的要求。 在本次設(shè)計(jì)中,本人主要負(fù) 責(zé)硬件系統(tǒng)的開發(fā)與設(shè)計(jì),仔細(xì)研究了單片機(jī)STC89C5火焰?zhèn)鞲衅鳌?A/D 轉(zhuǎn)換器、鍵盤以及數(shù)碼管等儀器的電路。 石家莊鐵道大學(xué)四方學(xué)院畢業(yè)設(shè)計(jì) 25 第 6 章 結(jié)論與展望 紅外線火災(zāi)報(bào)警器保障了生活和生產(chǎn)的安全,應(yīng)用火災(zāi)報(bào)警器可避免一些火災(zāi)的發(fā)生,同時(shí)可以在火災(zāi)發(fā)生時(shí)盡量減少生命財(cái)產(chǎn)的損失。本系統(tǒng)選用電源模塊,將 220V 交流電轉(zhuǎn)化為 5V 直流電壓 ,分別給模擬電路和數(shù)字電路供電。本設(shè)計(jì)前期選用高輸入阻杭、低噪聲的放大器,可以滿足要求,但是后期經(jīng)過測(cè)試放棄了使用放大器,直接連接傳感器跟 A/D 模塊也達(dá)到了要求,但是會(huì)有一定的誤差,而這個(gè)誤差是造成火災(zāi)報(bào)警器誤差的主要原因。就本儀器而言,誤差來源主要有軟件和硬件兩個(gè)方面。 圖 51 實(shí)際測(cè)試探頭感受距離 傳感器的阻值大小也是需要我們?nèi)フ{(diào)試的,因?yàn)槲覀冃枰哪M信號(hào)不能太小,但是傳感器不是只能的,這個(gè)工作也就只能是我們通過拿著火源切實(shí)的去驗(yàn)證才能得到準(zhǔn)確的數(shù)據(jù)。 在調(diào)試過程中,我們主要是針對(duì) A/D 轉(zhuǎn)換量化進(jìn)行調(diào)節(jié)。進(jìn)入到這個(gè)模式就是我們主程序的運(yùn)行開始。初始化完畢之后是對(duì)火焰?zhèn)鞲衅鞯念A(yù)熱,這個(gè)時(shí)間很短。 STC89C52單片機(jī)對(duì)傳感器檢測(cè)的紅外線強(qiáng)度信號(hào)進(jìn)行 A/D轉(zhuǎn)換,將濃度值與報(bào)警限設(shè)定值利比較,判斷是否報(bào)警。日標(biāo)文件由 LIB51 創(chuàng)建生成庫(kù)文件,也可以與庫(kù)文件一起經(jīng) C51 連接定位生成絕對(duì)目標(biāo)文件 (.ABS)。 Keil C51 工具包的整體結(jié)構(gòu)中, 181。 石家莊鐵道大學(xué)四方學(xué)院畢業(yè)設(shè)計(jì) 19 第 4 章 火災(zāi)報(bào)警器軟件設(shè)計(jì) STC89 系列單片機(jī)調(diào)試及開發(fā)工具 本系統(tǒng)的軟件編 程使用的是美國(guó) Keil software 公司出品的 Keil C51,是 51 系列兼容單片機(jī) C 語(yǔ)言軟件開發(fā)系統(tǒng),與匯編相比, C 語(yǔ)言在功能上、結(jié)構(gòu)性、可讀性、可維護(hù)性上更有明顯的優(yōu)勢(shì) [10]。 鍵盤電路 圖 39 鍵盤電路 圖 39 中 S1S4 可以配置成獨(dú)立按鍵,通過跳帽 J11 切換, J11 有三根插針組成,圖上跳到右端,在獨(dú)立按鍵配置中,應(yīng)該把跳帽跳到左端。而右側(cè)的數(shù)碼管,是傳感器采集數(shù)據(jù)后,經(jīng) A/D 轉(zhuǎn)換電路把模擬量轉(zhuǎn)換成數(shù)字量之后,由單片機(jī)輸出,顯示在 石家莊鐵道大學(xué)四方學(xué)院畢業(yè)設(shè)計(jì) 18 這個(gè)數(shù)碼管上的。在解調(diào)器應(yīng)用中 ,賦能輸入端可用作數(shù)據(jù)輸入端 [8]。將快速賦能電路用于高速存貯器時(shí) ,譯碼器的延遲時(shí)間和存1腳 3態(tài)允許控制端低電平有效 1D~8D數(shù)據(jù)輸入端 1Q~8Q數(shù)據(jù)輸出端 74HC573 引腳圖 石家莊鐵道大學(xué)四方學(xué)院畢業(yè)設(shè)計(jì) 17 貯器的賦能時(shí)間通常小于存貯器的典型存取時(shí)間 ,這就是說由前位的系統(tǒng)譯碼器所引起的有效系統(tǒng)延遲可以忽略 不計(jì)。 任選一個(gè)低電平有效使能輸入端,作為數(shù)據(jù)輸入,而把其余的使能輸入端,作為選通端,則 74HC138 亦可充當(dāng)一個(gè) 8 輸出多路
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