红外自动报警系统_电子信息工程毕业论文范文
发布时间：2015-01-14
来源：人大经济论坛
电子信息工程毕业论文范文
目录
摘要I
ABSTRACTI
第1章 绪论1
1.1背景1
1.2论文的任务，设计内容1
1.2.1论文的任务1
1.2.2设计内容1
第2章 报警系统的组成2
2.1 AT89C51单片机的简介3
2.2双音频解码DTMF5
2.3语音芯片:6
2.4红外传感器：7
2.5键盘输入7
第3章 系统的各部分硬件电路图8
3.1 ISD1420语音芯片图8
3. 2 铃流检测电路9
3.3 摘机挂机电路10
3.4 DTMF解码电路10
3. 5组合电路图11
第4章 系统的软件设计12
4.1 系统的初始化13
4.2密码检测13
4.3语音报警14
4.4振铃检测及计数14
4.5自动摘机15
4.6解码部分16
4.7电路控制部分16
第5章 系统仿真与调试17
5.1汇编17
5.2仿真18
第6章 总结19
致谢20
参考文献21
摘要
红外技术应用越来越广泛和普及，因此我们选用AT89C51单片机为核心，以MT8880芯片和ISD1420芯片为辅助以及一些其他的外围辅助电路，构成了一个红外自动报警系统。红外传感器既安全又隐蔽，而且技术十分成熟。因此选用了红外传感器。该系统的主要功能是:利用红外传感器输入报警信息给CPU,CPU在通过语音芯片产生报警并把相应的报警信息通过话机传给用户,用户可以通过话机对系统进行操作,可以及时解除错误报警.
这个系统由我们三个人合作完成。主要有信号检测,语音芯片和软件部分.我主要是负责软件部分.软件部分主要由系统初试化,密码检测,振铃音检测,自动摘机等部分组成
关键词： 红外报警， 单片机， 语音芯片， 传感器
ABSTRACT
Infrared Technology applies more and more and extensively with universality, so we choose to use the AT89C51 a single slice machine for the core, taking the MT8880 chips and ISD1420 chips as assistances and some other outer circle assistance electric circuit, constitute a red outside report to the police system automatically. Infrared Sensors is safe and concealment, and the technique is very mature. Therefore chose to use a red unauthorized biography feeling machine. The main function of that system BE: make use of a red unauthorized biography feeling machine importation to report to the police an information to the CPU, the CPU is passing a speech chip's creation to report to the police and correspond of report to the police an information to pass customer through a words machine, the customer can pass words machine to carry on an operation to the system, can relieve a mistake to report to the police in time.
This system is been three personal cooperation completions by us. Mainly there are signal examination, speech chip and software part. I mainly is be responsible for software part. The software part is mainly turned by system first attempt, the password examines, flapping a bell sound examination, taking off machine automatically etc. part constitute.
Keyword：Infrared alarm ，SCM ，Speech chip，Sensors
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