Autonomous wireless sound gauge device for measuring liquid level in well

Abstract

The paper describes an acoustic measurement and control method for remote monitoring of liquid level determination in wells and reservoirs. Before the paper, the task was to increase the depth of noncontact measurement of the liquid level in the well by measuring the time of direct propagation of ultrasound from the transmitter to the receiver, which, in contrast to the reflected sound, provides a much greater range of sound propagation and also the range of measurement and monitoring it using GSM networks. Data is returned to the main module via a USB channel or wireless radio transmitter 24 from the measurement channel. With the help of the first, ultrasound's propagation speed is determined, and the second time determines the distance from the installation site of the main module to the measuring part located on the surface of the well water in a floating position. In the main microcontroller, if the GSM network is available 16, the data is transmitted to the host server; otherwise, it is stored in the internal flash memory to wait for the availability of the GSM network, after which again, all micro-controllers of the device switch to energy-saving mode until the next measurement cycle.