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...Issn print online journal of system and management sciences vol no pp doi jsms smart parking based on an ultrasonic sensor bluetooth low energy in the internet things soobin jeon dongmahn seo school information technology engineering daegu catholic university hayangwo gyoungsansi gyoungbuk republic korea sarum cu ac kr abstract related to iot has contributed greatly living environments is one main services applications identify parked vehicles previous systems used special identification devices where radio frequency rfid tags were carried by users high quality cameras could recognize vehicle license numbers however methods inefficient terms cost they not user friendly thus address these problems we propose a sensors received signal strength indicator rssi communication proposed determines available spaces using motes located addition it recognizes location ble between s smartphone furthermore improve awareness for transform into distance range applying triangulation method can guide l...