现代电子技术2015，Vol.38Issue(22)：62-64,68,4.DOI:10.16652/j.issn.1004-373x.2015.22.018
基于CORTEX M3+SIM900A的报警系统设计
Design of alarm system based on CORTEX M3 + SIM900A
摘要
Abstract
By taking the CORTEX M3 core board and SIM900A (high performance industrial GSM/GPRS module) as the design core,a combustible gas detection system with the function of alarm warning by spontaneous SMS was designed,in which the core board processor STM32F103 is used as the controller. The data transceiving is executed by the core board and the GSM/GPRS module through the asynchronous serial UART. The sensor MQ-2 is adopted in combustible gas detection module to detect gas concentration.If the gas concentration exceeds the set value,SIM900A controlled by the proceesor in the detection system sends alarm messages to the relevant person. The design of automatic SMS alarm prompt was realized. The system hardware has the advantages of small size and low power consumption. The packing of transceiving characters for serial port communication are realized without messy code in the software design. The testing results show that the system has good performance in house-hold gas detection alarm and unattended gas concentration detection occasion.关键词
CORTEXM3/传感器/SIM900A/GSM/GPRS/可燃气体检测/MQ-2Key words
CORTEX M3/sensor/SIM 900A/GSM/GPRS/combustible gas detection/MQ-2分类
信息技术与安全科学引用本文复制引用
李敏,苏智华,刘颖..基于CORTEX M3+SIM900A的报警系统设计[J].现代电子技术,2015,38(22):62-64,68,4.基金项目
基于物联网的生态环境监测系统构建研究(15JK2078) （15JK2078）
