Patent ID: 8970395
Filing Date: 2015-03-03
Classification: G01F,G01S,H04Q

Abstract:
1. A method of providing a value indicative of a filling level of a product contained in a tank to a remote device using a battery-powered level gauge system comprising a measurement unit and a wireless communication unit, each being controllable between an active state and an inactive state with a lower power consumption than said active state, the method comprising the steps of: providing an activation signal from said wireless communication unit to said measurement unit to switch said measurement unit from its inactive state to its active state; providing a measurement request signal from said wireless communication unit to said measurement unit to request measurement of said filling level; switching said wireless communication unit from its active state to its inactive state after having provided said measurement request signal to said measurement unit; measuring said filling level by said measurement unit; providing, after having measured said filling level, a measurement ready signal from said measurement unit to said wireless communication unit; switching said wireless communication unit from its inactive state to its active state in response to said measurement ready signal received from said measurement unit at said wireless communication unit; retrieving said value indicative of said filling level from said measurement unit to said wireless communication unit; and wirelessly transmitting said value indicative of said filling level to said remote device.