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At 14:28 and 04.0 seconds on May 12, 2008, Wenchuan County, Sichuan Province (31.0°N, 103.4°E), an earthquake of magnitude 8.0 occurred, and the severely affected area reached 100,000 square kilometers. At 7:49 on April 14, 2010, a magnitude 7.4 earthquake occurred in Yushu County, Qinghai. At 8:02 on April 20, 2013, Beijing time, a 7.0-magnitude earthquake occurred in Lushan County, Ya'an City, Sichuan Province (latitude 30.3, east longitude 103.0). The focal depth was estimated to be about 13 kilometers. In recent years, natural disasters have hit us, and our hearts have suffered tremendous blows.
British researchers use RFID and sensors to monitor houses in earthquakes. They refer to prototypes built in Greece as self-healing houses. This type of house is specially designed for the gap space in the wall, and the wall is filled with a material that can become a fluid under strong pressure. If subjected to pressure caused by an earthquake, the fluid will flow back into the gap without affecting the solid wall. As a result, the house still exists, but it may move. If the building does not collapse, the data collected by the RFID and sensors will be used to determine the position offset.
In addition, RFID tags and sensors in buildings can work together to build an alarm system to alert an upcoming earthquake. In Japan, RFID tags are attached to the road surface of the refuge road, so that the asylum seeker can clearly know the specific location of the safe refuge site through the portable device and play a good guiding role. If someone is buried in the ruins, the trapped person can provide the searcher's own specific location information through the built-in RFID tag mobile phone, so that searchers can rescue as quickly as possible.
Sensor technology not only plays its due role in the earthquake, but also plays a prominent role in other natural disasters. For example, monitoring and measurement of mountainous areas, as well as monitoring and warning of landslide disasters in special areas of the Three Gorges reservoir area of ​​the Yangtze River. In today's natural disasters, the future of sensor technology is necessary to minimize the degree of disaster.
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