Research And Implementation Of A Kind Of Multi-functional Family Security Alarm System

With the continuous improvement of living standards and enhance awareness of safety precautions, the family of the security alarm system has been developed growing research institutes and manufacturers paying attention to. The market is now the numerous variety of people's family security alarm system. In this paper, for practical need to be considered, research and implement a multi-functional home intelligent security alarm system.The intelligent alarm system is based on single-chip microcomputer ATMEGA64 as the core,together with the DTMF transceiver chip MT8888, voice recorder chip ap89042 as well as the ISD1110 chip and video surveillance camera based on TI's DSP DM355 chip and other components together to constitute the system, which can auto-dialing,voice recording playback and video recording.This article first two chapters On the basis of Home security alarm system at home and abroad Analysis,given the purpose of this research, significance and content; with the security alarm system are closely related technology, such as wireless transmission technology, telephone automatically switching network Bell flow and the signal tone, video surveillance technology to do some research.In this paper, Chapter III begins with the overall requirements according to the system is divided into ten functional modules, and then the specific sub-module describes the system processor unit, Alarm Monitoring Module, auto-dial alarm module, voice circuits, human-computer interaction module, power supply circuit, implementation of the device, real-time clock module, Alarm host status monitoring circuit, as well as video recording module Hardware Circuit Design.In this paper, in chapter IV Specific describes the system's software design and system debugging. In the system software design, Specific gives the system the main program, key handling procedures, incoming calls handling procedures, intrusion alarm handling procedures, The system state exception handler and Display module program Design Flow. After system commissioning, the system has easy to operate with a flexible, auto-alarm, working a normal, stable performance, communications, reliability and low error rate characteristics of.The alarm system is the reliability better of the security device, it suitable for home, office and warehouse, etc. which can be quickly and effectively solve the security problems the family has a broad application prospects.