HAPPYLOCK USED TO PROVIDE INFORMATION RELATING TO THE STATE OF A LOCK, A SWITCH, AN ELECTRIC DEVICE (ON OR OFF), VIA RADIO OR CABLE, ALSO WHEN THE DEVICE IS LOCATED AT A DISTANCE

摘要

The invention relates to a fully automatic method (Happylock) which is used to remotely interrogate, in an acoustic manner (telephone, answer machine ...) or visual manner (key ring with LED...), the state off/on of a device, a lock, an alarm system, a heater, an industrial machine, water supply etc.