Research On Key Technologies Of Landslide Monitoring System Based On BDS And Internet Of Things

Landslide is one of the geological hazards which frequently occur, seriously threating people’s lives and property.As an important part of geological hazards, Landslide can lead to damage directly and cause secondary damage,as dslide pours into the lake leading to water soaring which threat villagers downstream,and may block the road,block the river, destruct houses and farmland, therefore landslide monitoring is extremely important. Landslide Monitoring Technologies nowadays have their pros and cons and variety of unreliability,and difficult to Spread application.This paper presents a program for landslide monitoring technology which combines BDS and wireless sensor networks,and then further research on the key technology of the new system,details as follow:1.System design : On the basis of studying Landslide, landslide monitoring techniques and landslide monitoring system,this paper analysis and design monitoring technology which combines BDS and wireless sensor networks in the view of hardware and software,and prove the feasibility of the program through theoretical verification and experiments.2.Key technologies research for data collecting subsystem:research the feasibility of the Landslide Monitoring System based on BDS-WSN beacon detection points and WSN points in terms of combine position and system reliability.3.Key technologies research for data transmiting subsystem: Increase transmission reliability through dual redundant transmission with Compass message and GPRS;Improve the effectiveness of Compass transmission through elements compression method; Improve the real-time and reliability of wireless sensor network transmission through queue management and packet scheduling mechanisms.4.Key technologies research for data processing subsystem: presents an program of fastly selecting satellites for beidou heterogeneous satellites which can improve the accuracy of calculation; Improve the reliability of the data through double sliding window adding the missing data.5.Key technologies research for system security subsystem: improve the safety of the system through system access control by user behavior trust evaluation.In summary,This paper presents a program for landslide monitoring technology which combines BDS and wireless sensor networks on the basis of researching basic knowledge and theory about landslide,and do research on the key technologies in terms of reliability, emphasis on reliability, positioning landslide monitoring reliability, transmission precision fixed, security monitoring data were studied, innovation is a combination of self-developed Beidou satellite positioning and networking and transmission technology.