摘要
介绍了一种基于单片机的矿井提升机语音报警系统,论述了矿井提升机语音报警系统的工作原理与构成,硬件系统部分给出了控制核心单片机,语音存储与管理芯片以及功率放大芯片的选型与电路搭建,绘出了单片机AT89S52与语音芯片ISD17240的SPI通讯连接的部分电路图,详述了ISD17240语音芯片的SPI通讯规则。软件部分阐述了单片机采集报警信号的软件工作逻辑与流程图,单片机与语音芯片ISD17240实现SPI通讯的关键工作时序。
The alarm system of mine hoist was designed based on SCM.The working principle and structure of mine hoist voice alarm system were introduced.The types of SCM used as control core,chip of storge and management voice and chip used for amplifying audio power were selected on the analysis of hardware. The communication circuit of SPI was designed between the SCM of AT89S52 and the voice chip of ISDI7240.The protocol of SPI for the voice chip ISD17240 was explained in detail.The software flow chart and working process of that the SCM captures alarm signal were studied. The SPI Communication timing diagram of SCM and the voice chip was explained also on the analysis of software.
出处
《煤矿机械》
北大核心
2014年第11期262-264,共3页
Coal Mine Machinery
