总字数：10234
摘要
本课题采用了STC89C51单片机来配置为核心主控，设计了一款城市道路噪声检测控制系统，它在工作过程中能够通过其内部的高性能声音传感器来对噪声信号进行感应，将其转换为模拟电压信号送入到单片机内部进行处理，使得系统获取到噪声强度，与此同时通过高清晰度液晶屏来对检测到的各项数据进行显示。本课题采用STC89C51单片机作为主控和心，在硬件层面上构建了单片机最小系统、液晶显示电路、噪声检测电路、报警电路以及按键电路等部分。在软件系统层面，本课题使用KEIL软件作为设计平台，在该平台上进行C语言代码程序的编码、编写转译并且编译成机器代码，把它烧录到STC89C51单片机芯片中得已运行，通过对每一个功能子模块的控制驱动，实现各项预期功能指标。在调试运行过程中，噪声检测控制系统出现了比较明显的缺陷和故障，通过反复的检测和调试，最终实现问题归零，使噪声检测控制系统可以稳定运行常态化，设计成果表现出了较高的实用性，适合进行推广，这款系统的实现能够有效降低市面上相关产品的研发成本。
关键词：城市道路噪声检测；液晶显示；模拟电压采集；单片机控制系统；
Abstract
In this project, STC89C51 single chip microcomputer is used as the core control, and a city road noise detection and control system is designed. In the working process, it can sense the noise signal through its internal high-performance sound sensor, convert it into analog voltage signal and send it to the single chip microcomputer for processing, so that the system can obtain the noise intensity, At the same time, through the high-definition LCD screen to display the detected data. In this paper, STC89C51 single chip microcomputer is used as the main control center, and the minimum system of single chip microcomputer, LCD display circuit, noise detection circuit, alarm circuit and key circuit are constructed on the hardware level. At the software system level, keil software is used as the design platform. On this platform, the C language code program is coded, translated and compiled into machine code. It is burned into STC89C51 single chip microcomputer chip to run. Through the control and drive of each functional sub module, the expected functional indicators are achieved. In the process of debugging and operation, the noise detection and control system has obvious defects and faults. Through repeated testing and debugging, the problem is finally returned to zero, so that the noise detection and control system can operate stably and normally. The design results show high practicability and are suitable for promotion, The implementation of this system can effectively reduce the R & D cost of related products on the market.
Keywords:Urban road noise detection; lcd; Analog voltage acquisition; Single chip microcomputer control system;
目录
1 引言
2 方案设计及元器件选择
3 系统硬件设计
4 系统软件设计
5 实物制作与安装
总结
参考文献