本科毕设论文_基于单片机综合应用设计实训.doc

成 绩 批阅教师 日 期 桂林电子科技大学 实训报告 2016-2017学年第一学期 学 院 海洋信息工程学院 课 程 基于单片机综合应用设计实训 姓 名 学 号 分 组 指导老师 日 期 摘 要Abstracts This design is entitled to the photoresistor to measure light intensity, the strength of the light to change the photosensitive resistor size, so that the output voltage changes, by measuring the size of the output voltage value can be indirectly measuring the light intensity. The design of the light intensity alarm control system and the light intensity level display circuit and illumination brightness of the display. This design uses the STC microcontroller-based control circuit, digital display light intensity, light green, yellow, red LED display brightness levels, to do with buzzer alarm circuit. The design of the circuit design principles and functions of various parts of the circuit can achieve, requiring a variety of basic electronic components, resistors, capacitors, diodes, transistors and other familiar and master the use of Proteus simulation software Protel 99 SE software tools such as mapping software and use of them. AD of the internal microcontroller to convert analog into digital, programmed to control the various peripheral circuits and to achieve its function. The design of the circuit is simple, compact, low cost, superior performance characteristics. Key words：Light intensity; photosensitive resistance; MCU   目 录 引言 1 1.系统概述 1 1.1 设计要求 1 1.2方案设计 2 1.2.1方案说明 2 1.2.2方案论证 2 2.硬件电路设计与分析 3 2.1单片机最小系统 3 2.2光敏电阻的主要特性及参数 5 2.3光敏电阻接入电路图 6 2.4数码管显示电路 7 2.5报警电路 7 3.软件设计 8 3.1主程序 8 3.2安装调试及测量数据分析 9 3.3出现的问题与解决的方法 9 4.实训的心得体会 10 致谢 11 参考文献 12 附录 13  引言 光照强度自动检测显示系统，该系统可以自动检测光照强度的强弱并显示让人们知道此时光照强度的强弱。人们可以设定光照强度的范围，一旦超出此范围该系统可以发出警报通知或直接采取措施使光照强度在此范围内。人们可以通过看此装置的显示了