DK-8000 plant monitoring system is a set of network communication to achieve geographically dispersed, monitoring the number of points of view more flammable or toxic and hazardous points for unified monitoring, monitoring, management of networked data monitoring and management platform. The system is a typical application case of "Internet of Things". The system includes five layers in functional classification, namely gas detection, data network access and on-site connection control, remote communication, management application platform, data sharing and management. The system is a comprehensive monitoring system based on sensor data collection, event alarm, wireless communication, SMS notification, business management, data statistical analysis, front-end equipment connection management, alarm and emergency plan processing.