Tall structured water tanks are not an uncommon sight in several places, especially where the water consumption is high and also during peak seasons. The water tanks are constructed at an extreme elevation, not in order to accommodate a huge quantity of water but to deliver water at a certain pressure that is required. This is the pressure that is normally required so that the water flows out of the tap properly.
Monitoring the pressure:
Traditionally, there were operators employed for measuring tower bottom levels and pressure and to take care of the process. These days, pressure monitoring sensors are installed for measuring tower bottom levels and pressure which also provides inputs for computer analysis.
These monitoring sensors use electricity and with this, come some disadvantages too. These monitoring systems are installed externally which makes it vulnerable to natural climate changes. Also, these work on power, which means they stop working once the power supply is interrupted, especially when each water tank is allocated limited electricity. Further, it is not easy to maintain these highly intertwined wires making it not just difficult but also expensive.
What could possibly be the solution?
The solution to this could be “wireless” monitoring sensors. These wireless monitoring sensors use a similar setup. The only difference being the usage of “air wires” instead of regular cables. This wireless system is also powered by batteries which address the electricity problem faces by these sensors due to limited supply.
This apparatus is considered to be the hub that receives the input for the data analysis. These data are MODBUS format to facilitate its access by programmable logic controller. The access can be by the internet. This portal could equally be linked to a programmable logic controller (PLC), a System collection and data acquisition (SCADA) or a Distributed control system (DCS) manually or using modems.
This wireless monitoring sensor uses 900 MHz and provides high quality and reliable transmissions for years together and sustains extreme weather conditions too. The absence of physical linking of the wires makes it immune to natural calamities which were one of the major challenges faced by the “wired monitoring sensors”. These allow the staffs to monitor the tower bottom levels and its pressure using a smart phone, tablet or laptop while the operators can monitor them on dashboards.
This is how the difficulty of having a manual operator and the high-cost maintenance of a wired monitoring sensor can be overcome by measuring tower bottom levels using a “wireless” monitoring system using air wires.