毕业设计（论文）-基于单片机的智能排风系统设计.doc

摘 要 随着计算机技术的发展，单片机技术以成为计算机技术中的一个分支，单片机的运用领域也越来越广泛。特别是在工业控制和仪器仪表智能化中扮演着及其重要的角色。传统的电路设计方法以演变成软件与硬件相结合的设计方法。在实际应用中，单片机要与各种外界设备相结合组成一定的应用系统，以实现系统的自动检测与控制。 这篇文章介绍了以C8051F单片机This article introduced take the C8051F330 monolithic integrated circuit, IR2110, the HD7279 demonstration chip and not brushes the direct current machine as the core intelligent exhaust system. C8051F330 is together the high performance monolithic integrated circuit, it has the volume to be young, the running rate is quick, work stable nature higher merit. Its interior contains has the temperature sensor, is advantageous for accurate survey ambient temperature IR2110 is one performance quite fine actuation integrated circuit. Does not need to expand may use in the low power directly in the converter, is the electric circuit is more compact. HD7279 is a piece of true monolithic LED nixietube demonstration and the keyboard interface chip, does not need the peripheral circuit, only needs the external connection few resistances and so on then to constitute the perfect demonstration, the keyboard interface electric circuit KEY WORDS brushless DC motor；C8051F330singlechip；IR2110；HD7279 摘要……………………………………………………………………………………I ASTRACT ………………………………………………………………………………II 目录 …………………………………………………………………………………III 第1章 绪论…………………………………………………………………… 4 课题来源……………………………………………………………………… 5 1.2智能排风系统的特点………………………………………………………… 5 1.3智能排风系统发展现状及发展趋势………………………………………… 5 1.3.1智能排风系统发展现状…………………………………………………… 6 1.3.2智能排风系统的发展趋势………………………………………………… 6 第2章 智能排风系统中电机的控制原理…………………………………… 7 2.1排风电机（直流无刷电机）的控制特性…………………………………… 7 2.2排风电机（直流无刷电机）的控制结构…………………………………… 7 2.3排风电机（直流无刷电机）的控制原理…………………………………… 8 2.4本章小结 第3章 智能排风系统设计方案论证…………………………………………9 3.1 方案简介………………………………………………………………………9 3.1.1电机的选取及驱动发案…………………………………………………9 3.1.2单片机的选取及按键显示方案…………………………………………9 3.2 系统方案论证…………………………………………………………………10 3.3本章小结 第4章 基于C8051F330单片机直流无刷电机的智能排风控制系统………11 4.1 IR2110简介……………………………………………………………… 11 4.2 单片机330简介……………………………………………………… 15 4.3 HD7279简介…