红外自动报警系统

红外自动报警系统

文档编号:DZXX275 文档字数:13356,页数:35

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

摘要 I
ABSTRACT I
第1章绪论 1
1.1背景 1
1.2文档的任务，设计内容 1
1.2.1文档的任务 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DTMF 5
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

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