Design, Development And Research Of Slope Temperature And Humidity Monitoring And Alarm System Based On ZigBee Technology

Monitoring and warning of frequent geological disasters such as landslide and debris flow is an urgent problem in geotechnical engineering.Aiming at the shortcomings of the existing geological disaster monitoring technology,such as untimely monitoring and inaccurate warning information,this thesis uses wireless sensor network technology to design a set of ZigBee-based slope temperature and humidity acquisition,monitoring and alarm system,and takes a hidden landslide point in Xinhua Central Primary School,Xinhua Town,Xinping County,Yuxi City,Yunnan Province as the research object.The physical model about the hidden danger of landslide is constructed,and the simulation test and experimental research are carried out.The main achievements are as follows:(1)The background,significance and status quo of the research are described and analyzed,and then the characteristics of ZigBee wireless sensor network technology,requirements and basic principles of slope monitoring design are introduced.(2)According to the requirements of slope monitoring system design,the CC2530 chip is designed and assembled as the core hardware device to realize ZigBee wireless network technology,and the wireless sensor system about slope is designed through the ZigBee communication protocol to realize the collection of relevant data of the monitoring object by the terminal sensor;Wireless transmission through ZigBee protocol,the collected data is transmitted to the collection and transmission system for processing and display;The monitoring frequency of the slope temperature and humidity acquisition system is intelligently adjusted,the buzzer alarm device is added,the alarm threshold is set,and the alarm is issued in time when the soil moisture is greater than the threshold.(3)To add the use of WIFi,OneNET open platform of the Internet of Things and other tools to develop corresponding applications on the mobile side,display monitoring data on the page of the mobile side and send an alarm when the temperature and humidity is too high.(4)Taking a landslide hidden danger point in Xinhua Central Primary School,Xinhua Township,Xinping County,Yuxi City,Yunnan Province as the research object,a physical model of landslide hidden danger place is constructed based on ZigBee technology and SLOPE/W software,and different water content is taken as reference conditions to conduct stability analysis of serious landslide hidden danger points.According to the experimental data,the warning threshold and alarm threshold were set as 21% and 23% of the water content respectively.(5)According to the experimental simulation results,the landslide wireless sensor monitoring system was established,and the main technical parameters and architecture of the system were set up.