一种四路扬声抢答系统设计
发布时间：2018-12-18 08:06
【摘要】：以PIC18F452单片机为控制核心,通过按键控制模拟开关CD4053来打通四路选手的音频通路实现四路抢答的功能,主持人可通过按键控制抢答的开始与暂停,最终声音采用8Ω/4W的扬声器进行播放。整个系统有五个功能模块:四路抢答功能模块、主持人控制功能模块、音频功率放大功能模块、设备功能状态指示与报警功能模块、CPU控制模块,根据各模块的供电电压需要可加一个电源模块。系统的硬件核心是音频功率放大电路模块,软件核心为基于按键和定时中断的四路抢答功能。该系统具有携带方便、外观精美、使用简便及性能稳定的优点。
[Abstract]:With the PIC18F452 microcontroller as the control core, through the key control analog switch CD4053 to open the audio path of the four-way contestant to realize the function of the four-way emergency answer, the host can control the start and the pause of the scramble by pressing the key. The final sound is played by 8 惟 / 4 W loudspeakers. The whole system has five functional modules: four function modules, host control function module, audio power amplification function module, equipment function status indication and alarm function module, CPU control module, According to the supply voltage of each module, a power supply module can be added. The hardware core of the system is the audio power amplifier circuit module, and the software core is the four-way reply function based on keystroke and timing interrupt. The system has the advantages of easy to carry, beautiful appearance, easy to use and stable performance.
【作者单位】： 浙江理工大学信息学院;
【分类号】：TP368.1
本文编号：2385603
[Abstract]:With the PIC18F452 microcontroller as the control core, through the key control analog switch CD4053 to open the audio path of the four-way contestant to realize the function of the four-way emergency answer, the host can control the start and the pause of the scramble by pressing the key. The final sound is played by 8 惟 / 4 W loudspeakers. The whole system has five functional modules: four function modules, host control function module, audio power amplification function module, equipment function status indication and alarm function module, CPU control module, According to the supply voltage of each module, a power supply module can be added. The hardware core of the system is the audio power amplifier circuit module, and the software core is the four-way reply function based on keystroke and timing interrupt. The system has the advantages of easy to carry, beautiful appearance, easy to use and stable performance.
【作者单位】： 浙江理工大学信息学院;
【分类号】：TP368.1
【相似文献】
相关期刊论文 前2条
1 吴先球,张诚,温均强,邓红伟,李军;专业音频功率放大器的单片机控制器[J];电声技术;1998年08期
2 ;[J];;年期
相关硕士学位论文 前2条
1 谭一秋;音频功率放大器在笔记本电脑中的应用研究[D];苏州大学;2009年
2 李建;一种新型音频放大器在笔记本电脑中的研究与应用[D];苏州大学;2010年
，本文编号：2385603
本文链接：https://www.wllwen.com/kejilunwen/jisuanjikexuelunwen/2385603.html
