XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 系(院) XXXXXXXXXXXXXXX 专业题 目 环境噪声监测器(软件部分) 学 生 姓 名 XXXXX 班 级 XXXXXXX 学 号 XXXXXXXX 指 导 教 师 XXXXX 日 期 2025 年 04 月 15 日南 昌 工 程 学 院 教 务 处 订 制环境噪声检测器(软件部分)The Environmental noise detector (software)总计 毕业设计(论文) 38 页 表 格 3 个插 图 14 幅摘 要本文详细介绍了噪声监测系统的测量原理和系统组成,包括:噪声信号的转换、放大、V/F转换、数据采集和显示系统的设计。外界噪声信号通过传声器转换成音频信号,电信号经过放大和V/ F 变换输入到单片机进行处理,并转换成相应的噪声分贝值通过LED 显示,从而实现噪声的实时监测。该系统具有实现简单,精确度高,可用于实际进行噪声的实时监测等特点。关键词:传声器;运算放大器;V/F转换器;单片机;LEDAbstractIn the paper, the measurement principle and the system constitution are introduced in detail, including: the noise signal converting system, signal magnifying system, V/F converting system, data collection and indication system. This paper introduces the ways to convert the real-time monitoring of the noise into acoustic frequency electrical signal by using microphone, operational amplifier and V/ F converter, which will act as Single Chip Micoyo’s input signal. Then the SCM will change it into a noise DB value, which will be displayed on LED. This system is simple 0and has high precision, so it is always used in monitoring the urban noise real-time.Key words:microphone;operational amplifier; V/ F converter;Single Chip Micoyo; LED目 录摘 要................................................IAbstract............................................................................................II目 录..............................................................................................III第一章 绪论......................................................................................1...