GSM-Based Prepaid Meter

Manual reading of meters for electricity measurement has been prevalent for a long time. The drawbacks of having such systems lead to inaccuracies in power consumption data causing problems to both customers and energy providing utility. This has led to large developments in the electronic metering measurements systems which are henceforth more reliable and efficient than the previous systems. This paper presents a design of GSM-based low-cost meter and its associated SMS (short messaging system) interface for remote accessing of data. This system consists of electricity e-billing system at the energy provider side via GSM module and automatic cut off via relay for low balance at the customer side.