Abdulkadir KARACI2023-04-142023-04-142018-06-01Karaci, A. (2018). IOT-BASED EARTHQUAKE WARNING SYSTEM DEVELOPMENT AND EVALUATION. Mugla Journal of Science and Technology, 4(2), 156-161https://search.trdizin.gov.tr/publication/detail/298175/iot-based-earthquake-warning-system-development-and-evaluationhttps://hdl.handle.net/20.500.12597/7854Inthisstudyalowcostearthquakewarningsystemhasbeendevelopedthatwilldetectnon-destructiveforeshocks.ThedevelopedsystemisanIOTapplicationwhereobjectscommunicatewitheachother.Arduinomegawasusedasthemicrocontrollerinthesystem.Thepurposeofdevelopingearthquakewarningsystemistoannouncetheinformationaboutthebeginningandendoftheearthquakeattheinstantofearthquakeasatweetintweeterandtogiveaudiblealertforthepersonsintheenvironment.IMUandpiezovibrationsensorswereusedtodetectthevibrationsatthemomentoftheearthquake.Also,ESP8266Wi-Fimodulewasincludedinthesystemforthesystemtoconnecttotheinternet.ThesystemevaluatesthedatafromIMUandvibrationsensorstodetecttheearthquake.ForIMUsensor,dataisevaluatedintwoaxes;namelyxandy.ıfthechangeinx-ory-axisisequaltoorgreaterthan10orthedatafromvibrationsensorisgreaterthan694thentheearthquakewarningsystemistriggered.AsaresultofthistriggeringthesystemconnectstointernetviaWiFimodule,atweetissenttoinformthattheearthquakehasstartedandaudiblealertisgivenlocally.ThingSpeakIoTanalyticsplatformisusedforthesystemtopsendtweet.Whenthesystemistriggered,necessarydataissenttotheThingSpeakplatformandtweetissentthroughthisplatform.Also,system’ssensitivitythresholdvaluescanbechangedandadjusted.Accordingtotheresultsofreal-timeoperation,ithasbeendeterminedthatthedevelopedsystemcandetecttheearthquakesuccessfullyandsensitivelyandprovideaudiblealertandsendtweetforwarning.enginfo:eu-repo/semantics/openAccessRESEARCH10.22531/muglajsci.442492298175156161422149-3596