Sichuan Surveying and Mapping Instrument Company introduces the project background to you

　　The construction of the Three Gorges Reservoir not only brings benefits to the country and society,but also brings harm to the ecological environment and personal and property safety in the upstream area of the reservoir area.One of the main hazards is the geological disaster landslides along the riverbank slope in the reservoir area,which directly affects the normal operation of the reservoir and the safety of existing towns and new towns.The monitoring and early warning of landslides with potential geological disasters is conducted all-weather,high-precision,automated,and scientific,It is also imperative to protect the personal and property safety of the people in the reservoir area.

　　The Chongqing Yunyang County Landslide Early Warning System has constructed a total of 140 sets of field Beidou monitoring equipment,covering a total of 24 landslide masses in 12 towns and townships throughout the county,and comprehensively monitoring and warning the coastal disaster points along the Yangtze River and its tributaries in the Yunyang section of the Chongqing reservoir area.The system consists of two parts:a data acquisition device and a data processing platform.The field monitoring equipment transmits the collected disaster data information back to the data receiving software in real time,analyzes and calculates the data through professional software,and then visually presents the calculated result value,data change amount,change curve,and other information on the monitoring platform in the form of data and graphics for real-time early warning.

　　Technical advantages

　　The landslide monitoring and early warning system using GPS and Beidou technology is an automated,all-weather,high-precision system that can monitor the trend of landslide changes in real time,provide scientists,engineers,and monitoring personnel with intuitive and valuable natural disaster early warning information in a timely manner,improve the efficiency and accuracy of early warning,and thereby reduce life and property losses.

　　Solution

　　At the end of March 2016,the project was officially mobilized and started,and the project acceptance was completed in September of the same year.During this period,I experienced ultra-high temperature and hot weather in Chongqing in summer,as well as ultra-long rain weather,which posed great challenges to the high-temperature resistance ability of the entire monitoring system and the normal endurance operation ability of the system under long-term overcast and rainy weather.With the unremitting efforts of the company's team members and overcoming various difficulties,Z finally delivered a satisfactory answer sheet to the owner and the company.

　　Beidou technology,as a new measurement and monitoring method,has the advantages of high speed,high accuracy,and high automation.Compared with conventional manual monitoring methods,it appears to be more convenient and flexible,especially in areas with difficult outdoor conditions,which can exert its advantages.