Designing flood early warning system using internet of things

Internet of things technology has grown rapidly in recent years. Internet of things can be used for environmental monitoring to make an early warning system for disaster. This technology is much needed to warn people about flood that usually happen in Jakarta. In this prototype water level sensor are used to measure whether the water level has reached a dangerous state and flow rate sensor is used to measure flow rate. In this paper the number of notification sent and the time it needed since water level has reached a dangerous state until a notification alert is received is measure to see if the notification can be receive before flood happens. The result shows that most of the notification received before flood happens. The states of the sensor and internet speed affect the process to send the notification.