盐城工学院本科生毕业设计说明书( 2015)
目 录
1概述................................................................................................................................................ 1
1.1课题研究背景与意义..........................................................................................................1
1.2课题设计内容与要求..........................................................................................................1
1.3课题技术路线......................................................................................................................2
1.4课题预期效果......................................................................................................................2
2设计方案论证................................................................................................................................. 3
2.1 总体设计............................................................................................................................. 3
2.2模块选择.............................................................................................................................. 3
2.2.1感应模块选择...........................................................................................................3
2.2.2 GSM模块选择..........................................................................................................4
3系统硬件电路设计......................................................................................................................... 5
3.1 单片机功能及引脚说明.....................................................................................................5
3.1.1 STC89C52单片机的功能说明.................................................................................5
3.1.2 STC89C52单片机的引脚说明.................................................................................5
3.2 单片机最小系统电路设计.................................................................................................6
3.2.1复位电路设计...........................................................................................................7
3.2.2时钟电路设计...........................................................................................................7
3.3电源模块电路设计..............................................................................................................7
3.4 按键模块电路设计.............................................................................................................8
3.5 感应模块电路设计.............................................................................................................9
3.6 声光报警模块电路设计.....................................................................................................9
3.7 GSM模块电路设计...........................................................................................................10
3.8 LED指示灯模块电路设计................................................................................................11
4 系统软件设计..............................................................................................................................11
4.1主程序设计........................................................................................................................11
4.2子程序设计........................................................................................................................ 12
4.2.1 中断子程序设计.....................................................................................................12
4.2.2按键扫描子程序设计..............................................................................................13
4.2.3 GSM子程序设计....................................................................................................13
4.2.4 计时子程序设计.....................................................................................................15
5系统调试......................................................................................................................................16
5.1 硬件调试........................................................................................................................... 16
5.2 软件调试........................................................................................................................... 16
5.3 调试结果........................................................................................................................... 16
6结束语..........................................................................................................................................20
参考文献........................................................................................................................................21
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