Security Alarm System Based on SCM
Abstract: With social progress and improvement of living standards, people's sense of security to prevent the gradual strengthening of the desire of the demand for greater security. The system is based on the larger environment, starting from the needs of people, designed a smart alarm, intelligent safety precautions in order to achieve the objective. The design of the hardware from the four modules circuit: sensor module circuits, MCU control module circuit, the module circuit, alarm module circuit. External control module, designed to reset the system and circuit module oscillator circuit, making the system more stable and practical. The main use of the control module as a whole SCM AT89S52 alarm control system. Sensors in part through induction whether through objects, a level output signal, and the SCM treatment, and the judgement of sensor signals, delay, display, alarm, and other functions. The alarm system for centralized testing, to the point under control of a number of real-time detection, when detected at one or more of a warning signal, can be used to display and digital sound alarm locations, and a smart alarm control. Key words: SCM; Sensor; Alarm System
