Temperature Variation Tolerance High Resolution Real-time Liquid Level Monitoring System

摘要

The main issues of flooding in the urban are usually caused by the overflow of gully blockages and sewers. In this paper, we proposed a real-time liquid level monitoring system. This system can predict potential blockage incidents and provide adequate early alert, which makes the staffs clean the blockage and leakage within the sewer infrastructure in time. Hence, the number of urban sewer flooding incident can be reduced. The proposed monitoring system consists of frequency generator, data acquisition (DAQ), loudspeaker, microphone sensor, and temperature sensor. The resolution of the proposed monitoring system can achieve 0.667mm and then possess the functionality of temperate tolerance that is better than commercial ultrasonic sensor HC-SR04 with resolution 3mm. Users can arbitrarily choose and adjust the liquid level resolution based on their measured environment. Experiment results show that our proposed system can be used in real world environment.