基于单片机的瓦斯浓度检测报警系统设计，详细介绍了设计的相关知识。-Based on the concentration of single-chip gas detection alarm system design, detailed design knowledge.

该系统为一套完整的井下检测节点系统，包含温湿度、压力、瓦斯浓度、人员心率监测等。所有监测项目均包含报警功能(The system is a complete set of underground detection node system, including temperature and humidity, pressure, gas concentration, staff heart rate monitoring. All m