System and method for determining a status of a valve using an actuator accelerometer and a reference accelerometer

A system for determining a status of a valve being mounted in a liquid supply line, the valve being actuatable by an actuator from a first position to a second position to control the delivery of liquid, the system comprising:

• an actuator accelerometer mounted to the actuator and being adapted to measure an actuator position associated to the actuation of the valve, and to generate an actuator signal indicative thereof;
• a reference accelerometer positioned in a fixed position relative to the liquid supply line and being adapted to measure a reference position fixed relative to the liquid supply line, and to generate a reference signal indicative thereof;
• and a computing device operatively connected to the actuator and reference accelerometers for receiving the actuator signal and the reference signal, the computing device being adapted to:
• determine the status of the valve based on the actuator signal and the reference signal, wherein the actuator signal and the reference signal are obtained simultaneously, wherein the computing device is further adapted to calculate a total volume of liquid delivered through the liquid supply line based on the determined status of the valve as a function of time elapsed and on calibration flow data.