FIELD DEMONSTRATION OF WATER LEVEL MEASUREMENT SYSTEM FOR SMALL RIVER USING NON-CONTACT SENSOR AND LPWA WIRELESS DEVICE

Abstract

 In Japan, flood disasters often occur due to heavy rainfall brought by a typhoon. In order to do appropriate flood prevention and evacuation actions, we need to acquire water level data at different locations. Therefore, it is necessary to construct a measurement system that is easy to install and easy to collect data. This study constructed a water level measurement system using a non-contact sensor and a data collection system using an LPWA wireless device. We checked the applicability of the system in the field. And more, this study indicated the possibility of remotely monitoring the water level with an ultrasonic sensor.