自动控制升降旗系统的设计毕业设计

自动控制升降旗系统的设计

摘要

本设计是关于自动控制升降旗系统的设计。本着实用、调整控制方便、功能完善等方面的原则，采用在线编程、功能强大的单片机——P89C51RC2HFA来控制步进电机，实现国旗的自动升降等功能。在步进电机的驱动电路上直接选用了模块化的控制器，大大减轻了CPU的负担，也完全符合快速设计的原则。本系统设计了实现精确定时的时钟电路和用于掉电保护的存储电路，同时还设计了功能齐全的键盘/显示电路和使国旗飘扬的鼓风电路以及遥控电路。

该系统具有以下特点：可按键、可遥控自动控制升旗和降旗，并在任意指定位置自动停止，升旗过程中能准确与国歌乐曲同步；实现半旗状态的功能；具有断电保护功能；升降速度可调功能；还具有无线遥控的作用等特点。需要设定的升、降过程以及半旗状态是通过按键实现，并能显示上升或下降时间和旗帜所在高度。本系统的创新点包括：防止升降旗过程中出现冒顶系统；国旗到达顶点时，旗面保持迎风飘扬而不缠杆。在实现以上功能的过程中，升降旗时间在30～120秒内可调，通过改变步进电机的转动速度来改变旗帜上升或下降的速度，并通过LED显示上升或下降时间和旗帜所在高度。旗帜达到顶端后，由鼓风机提供风源使旗帜始终处于飘扬的状态。

测试表明，该自动控制升降旗系统达到了题目所有的任务要求，同时在发挥部分的设计要求之上，我们还提出了具有特色的创新点。在操作方便和误差较小的基础上，保证了系统完整协调地工作。

关键字：自动控制；断电保护；无线遥控；冒顶

ABSTRACT

The design is based on the practical and convenient adjustment control, and so functional improvement, with the off online programming, the powerful MCU

--P89C51RC2HFA to stepper motor control, to realize the automatic raising/lowering of the national flag. Stepper motor drive circuit is directly in the selection of a modular controller, thus reducing the burden on the CPU, but also with the rapid design principle. The system is designed to achieve precise timing and the clock circuit used for solving the memory circuit, but also designed a fully functional keyboard / display circuit, so that the national flag flying and remote control circuit blast.

The system has the following features: a flag raising and lowering can be controlled by button or remote control, and can automatically stop at any designated location, the national anthem and flag-raising process can accurately music synchronization; Function of achieving the half-mast state; Have power outages protective function; Adjustable rate movements function; The role also has wireless remote control features. Set the ascending, descending process of the state and

half-mast through the button, and it can show the time and tallness in rise or lowering.

The innovation of the system include: preventing flag rising emerged in the course of rising; Flag arrived at the apex, to keep the flag fluttering in the wind rather than wrapped around poles. In the process of achieving the above functions, 30-120 seconds for the flag rising is adjustable, by changing the rotational speed of the step motor, the flag raising speed can be changed, and the time & tallness will be showed on the LED. After the flag reached the top, the wind provided by the blower will make the flag in fluttering state

The test results show that the flag controlling system raising a topic all of the tasks and requirements, and some features are on top of the design requirements. We have initiated unique innovations.

Based on less error and convenient operation, the system is ensured to work integrated and coordinate.

Keyword: Automatic control；Wireless remote control；Power outages protective；Rising emerged