Design Of Landslide Early Warning System Based On Wireless Sensor Network

The frequent landslide disasters result in many people homelessness, even lost their lives. And it causes an immeasurable economic loss which hindered the development of the country. So to reduce the loss caused by landslide disasters and to prevent the occurrence of geological disasters are the focus of the current research.With the era of big data has arrived and usingdata services to set up early warning network is the trend of the geological disaster monitoring and early warning. So that the idea of design with wireless sensor network of landslide disasterhas substantial significance.This paper firstly analyzes the characteristics of short distance wireless communication and selects ZigBee wireless network which is suitable for landslide disaster monitoring spots,researchs and designs the network topology structure of the landslide disaster monitoring system based on ZigBee protocol stack. While GPRS and Beidou satellite is used for remote transmission.Then it carries on a research on the concept of data service, and constructs the whole frame of the system. Due to the landslide is the main form of disaster, the mechanism of the landslide is analyzed. After compared a variety of forecasting models, an improved collaborative grey model is achieved, MATLAB is used to simulate the simulation, then summed early warning methods.Secondly, this paper builds a system platform, which is divided into hardware part and software part.The Collection terminal and the sensors of the hardware part are all provided by XuanLongCompany. The hardware system is mainly completes the design of hardware assembly and battery management.ZigBee wireless network is used for the geological disaster spots,while GPRS and Beidou satellite is used for remote transmission. The software system is divided into the main station software which uses VS2010 to program design,and terminal software which selects QT to design the host computer system and call a corresponding database.Finally, the design of wireless network is tested, which are include the ZigBee distance test, the network test, GPRS and the main station communication test and the system terminal software test.