A debris flow occurred in Linfen Xinta Mining Co., Ltd. in Shanxi, killing 128 people; The landslide and debris flow disaster in Yunnan has caused 40 deaths and 43 missing, and infrastructures such as electricity, transportation, water conservancy, and communication have been damaged to varying degrees, and the direct economic losses due to the disaster are 592 million yuan; There were 1453 geological disasters in Sichuan Province, including 1032 landslides, 180 collapses, and 185 debris flows, causing 72 deaths and 37 missing, more than the sum of geological disasters last year ... In recent years, reports on geological disasters have been common. From this set of data, it is not difficult to see that China ’s geological disasters are very harmful and have a huge impact on our production and life. These examples of disasters reflect the construction of real-time monitoring and early warning systems. Lagging behind, there is an urgent need to establish an intelligent detection and early warning system for landslides and debris flows in high-prone areas of geological disasters in China. By quickly sensing the precursor information of geological hazards, rapid warning and emergency avoidance are implemented to minimize the casualties. Current status of geological monitoring and early warning sensor network in China The geological hazard monitoring and early warning sensor network includes front-end sensors, front-end data acquisition processors, (wireless, wired) communication modules, and background data processing and information release system software. The communication transmission of China's existing real-time monitoring system of landslide and debris flow mainly uses wireless short message, ZIGBEE, GPRS and Beidou-1 satellite communication, etc., and carried out experimental research on wireless broadband communication transmission in the Three Gorges reservoir area and Sichuan Wenchuan earthquake disaster area and other places . The geological disaster group monitoring and prevention network established in China basically covers hilly counties and cities across the country, effectively avoiding thousands of disasters every year. At present, most of the methods of group monitoring and group prevention and monitoring use manual collection, which has the disadvantages of untimely data collection and insufficient information coverage. Compared with the advanced level abroad, China started late in real-time monitoring and early warning of landslide and debris flow disasters, and there are still gaps in the monitoring data broadband communication transmission, intelligent sensor development, monitoring and early warning model and information system development, and corresponding technical standards. The prevention and control of geological disasters has attracted the attention of governments at all levels. Last year, the State Council promulgated the "Plan Flood Prevention and Control Plan" and the "Decision of the State Council on Strengthening the Prevention and Control of Geological Disasters", which clearly established the establishment of geological disaster prone areas in China The task of establishing a geological disaster investigation and evaluation system, a monitoring and early warning system, a prevention and control engineering system and an emergency system in a geological disaster prone area is one of the most important contents. The establishment of an address disaster monitoring and early warning system that combines professional monitoring and group monitoring and prevention The development of a monitoring and early warning system based on sensor network technology is a very promising development direction in the future. Architecture of geological disaster detection and early warning system based on Internet of Things technology The geological disaster monitoring and early warning system based on the Internet of Things technology can be divided into four levels: "sensation, transmission, knowledge, use". Sense: The sensing layer, that is, data collection, mainly uses various intelligent sensors and cameras to perceive relevant information about the development process of geological hazards. Transmission: the transmission layer, which transmits the geological disaster monitoring data obtained by the sensor, including all existing wired and wireless data communication methods, such as wireless local network, short message, wireless data, 3G, satellite, etc. Know: The data layer, that is, the storage, mining, calculation, analysis, and sharing of the geological hazard monitoring data collected on site, is the core part of the entire geological hazard monitoring and early warning system, and is also the key difference from the previous system. Usage: The application layer is the interface between the Internet of Things and users, and realizes the intelligent application of various geological disaster monitoring and warning results. The Internet of Things connects various levels to form a system as a whole. Suggestions on strengthening the application of the Internet of Things for monitoring and early warning of geological disasters First, increase investment in science and technology; Second, break through the key technical issues of geological disaster monitoring and early warning sensor networks; Third, strengthen geological disaster monitoring and early warning sensor network technology integration and demonstration application research; Fourth, in order to accelerate the popularization and application of geological disaster sensor network technology, we should establish a series of geological disaster monitoring and early warning standards in China as soon as possible, and formulate policies and measures to encourage the promotion and application of geological disaster sensor network technology. Round Hanging Mirror,Hanging A Heavy Mirror,Door Hanging Mirror,Hanging Mirror On Wall Hongsing Glass Hardware Porduct Co Ltd , https://www.hongsingglass.com
Analysis and Suggestions on the Status of Geological Disaster Monitoring and Early Warning System Based on Internet of Things Technology