"基于单片机的家用烟雾监控报警系统设计与实现"。

Based on the document "Smoke Detection Alarm System Based on Single Chip Microcomputer.doc", this paper presents a smoke detection alarm system designed using a single-chip microcomputer and sensor technology. With the increasing trend of household electricity consumption and the higher frequency of household fires, smoke alarms have been widely used in various occasions. The use of multiple sensors combined with a single-chip microcomputer can effectively solve the contradiction between sensitivity and alarm accuracy. The system uses the MQ-2 smoke sensor, DS18B20 temperature sensor, and AT89S52 single-chip microcomputer as the core components, combined with other electronic technologies. The AT89S52 single-chip microcomputer controls the sensors to detect smoke and temperature at the monitoring location in real time, and processes the detection results to achieve functions such as sound and light alarms, concentration display, and temperature display. The system is a simple, stable, easy to use, low-cost, and intelligent smoke alarm with practical value. The paper provides a detailed introduction and explanation of the various components and functions of the smoke alarm system, as well as a detailed analysis and explanation of the interface connection between the main control circuit and the peripheral device circuit, and the system software design. Keywords: smoke; alarm; single-chip microcomputer; sensor