Bangun Jaringan Sensor Nirkabel dengan Topologi Star pada Prototipe Sistem Deteksi Tanah Longsor Menggunakan Empat Tipe Sensor
Landslide disaster is one of the natural phenomena that has taken many victims and material
losses are not small. Natural disaster can not be avoided, but can be prevented by early detection utilize
Optocoupler sensor, MPU6050, Hygrometer YL69, MPX5100DP. Sensor works to detect rainfall, ground
movement, ground water content, and ground water pressure. The sensor sends data to the coordinator node using a star topology. Data from the coordinator node is sent to the server to be stored in the database and displayed in the form of real time charts and tables on the website. If the data from the sensor exceeds the threshold or in a dangerous measurement then the display of the website on the graph will appear a warning alert. The prototype of this landslide detection system has a threshold value for rainfall station of 100mm / hour, ground water pressure sensor of -9.23kPa, ground water content sensor of 21.3%, and for ground movement sensor has no threshold value.