智能家居毕业设计

摘要

智能家居系统采用电子传感技术、计算机技术和信息传输技术，对用户提供全方位的服务，同时对住房内情况进行实时监控和管理。它包括家庭内部信息传输系统、家庭报警、显示系统及智能传感/执行设备等几个部分。

本文所做的智能家居控制系统包括室内信息智能监控功能、输入与实时显示功能、智能报警和通讯报警等。本文将整个系统分为主机部分和分机部分，以AT89C51单片机为主控器件，两部分之间通过无线通讯模块进行数据交换。

主机部分是系统的核心部分，通过键盘输入模块对系统温湿度的进行初始化设置，并利用LCD显示模块对室内状况进行实时显示，本部分还具有温湿度控制和煤气阀开关控制的功能，对于异常情况，系统可通过声光报警模块进行报警提示，情形严重的可通过电话拨号模块通知用户、物业或相关部门。

分机部分是系统的监测部分，主要是通过温湿度传感器、气体传感器和烟雾传感器对室内信号进行采集，并通过无线通讯模块PTR8000将信息传送给主机，实现对家居的智能控制。

通过本文的研究，使得整个智能家居控制系统得到了进一步完善！

关键词：AT89C51；智能控制；传感器；无线通讯

Abstract

Intelligent home system uses electronic sensing technology, computer technology and information transfer technology to provide a full range of services, and at the same time to monitor the situation of housing and real-time management. It includes family information transmission systems, home alarm, display system and intelligent sensor / equipment such as the implementation of several parts.

The intelligent home control system made in this article including an indoor information intelligent monitoring, input and display real-time, intelligent alarm and communications alarm. It is divided into host part and extension part, and make the AT89C51 single-chip as the main control unit, the two parts exchange data for each other through the wireless communication module.

The host part is the core of the system, initialize the temperature and humidity settings through the keyboard input module of the system, and use the LCD display module for the real-time display of indoor situation, this part also have the control functions for temperature, humidity and gas valve switch, for anomalies, the system also can alarm by sound and light alarm module. For the serious situation, the system also can inform the users, property or related sectors by telephone dial-up module.

Extension is the monitoring part of the system, it collect the indoor signal through temperature and humidity sensors, gas sensors and smoke sensors, and transport the information to the host through wireless communication module PTR8000 , to achieve Intelligent control of home.

Through the study of this article, the entire intelligent home control system has been further improved!

Key Words：AT89C51;Intelligent Control;Sensor；Wireless communication

目录

摘要 (1)

Abstract (2)

引言 (1)

1 绪论 (2)

1.1 研究智能家居的意义 (2)

1.2 国内外智能家居的现状与发展趋势 (2)

1.2.1 国内外智能家居的发展现状 (2)

1.2.2 智能家居的发展趋势 (3)

2 智能家居控制系统的方案设计 (5)

2.1 AT89C51单片机 (5)

2.2 系统的总体方案设计 (6)

3 硬件设计 (7)

3.1 主机系统的硬件设计 (7)

3.1.1 可编程并行I/O口的扩展 (7)

3.1.2 键盘接口电路设计 (8)

3.1.3 液晶显示模块 (8)

3.1.4 声光报警 (11)

3.1.5 自动报警系统 (11)

3.1.6 电磁阀控制模块的设计 (13)

3.1.7 温湿度控制系统的硬件设计 (14)

3.2 分机系统的硬件设计 (15)

3.2.1 A/D转换芯片 (15)

3.2.2 温湿度传感器SHT11 (17)

3.2.3 气体传感器 (18)

3.2.4 烟雾传感器 (20)

3.3 主机与分机通讯部分 (21)

3.4 电源模块的设计 (22)

4 系统的软件设计 (23)