Energy-efficient home-automation device and method for tracking the displacement of a monitored object
AssigneeMyfox
InventorsJean-Marc Prunet, Jean-Yves Fourniols, Franck Nieceron
Life of this patent
Estimating the term…
Abstract
Disclosed is a home-automation device including a displacement detector for a monitored object, an accelerometer, an orientation sensor, a memory, a processing unit. The processing unit is programmed to calculate, upon detection of an event, a displacement energy of the detector from the acceleration signals acquired during a waiting time after the triggering event.
Claims20
Home-automation device comprising at least one displacement detector for an object, named monitored object, comprising:
- a housing,
- an accelerometer fixed to the housing and adapted to provide signals, named acceleration signals, representing an acceleration of the housing in at least one fixed direction of the housing,
- an orientation sensor fixed to the housing and adapted to provide signals, named orientation signals, representing a momentary orientation of at least one fixed direction of the housing,
- a memory comprising data representing:
- at least one predetermined value, named triggering value,
- at least one predetermined value, named scaling value,
- a processing unit for the acceleration signals and orientation signals,
- wherein the processing unit is programmed to:
- be able to identify a predetermined event, named triggering event, representing a variation in the acceleration of the housing, at least from the acceleration signals and said triggering value,
- upon detection of a triggering event:
- perform, at least from the acceleration signals, a calculation for determining a value, named displacement energy, said calculation comprising at least one sum of accelerations over time,
- after a set time, named waiting time, from the triggering event has passed, acquire orientation signals provided by the orientation sensor representing the momentary orientation, named final orientation, of the housing,
- compare said displacement energy to said scaling value.
Method for operating a home-automation device comprising at least one displacement detector, said displacement detector comprising:
- a housing,
- an accelerometer fixed to the housing and adapted to provide signals, named acceleration signals, representing an acceleration of the housing in at least one fixed direction of the housing,
- an orientation sensor fixed to the housing and adapted to provide signals, named orientation signals, representing the momentary orientation of at least one fixed direction of the housing,
- a memory comprising data representing:
- at least one predetermined value, named triggering value,
- at least one predetermined value, named scaling value,
- a processing unit for the acceleration signals and orientation signals,
- wherein the processing unit:
- processes the acceleration signals so as to be able to identify, using said triggering value, a predetermined event, named triggering event, representing a variation in the acceleration of the housing,
- upon detection of a triggering event:
- performs, at least from the acceleration signals, a calculation for determining a value, named displacement energy, said calculation comprising at least one sum of accelerations over time,
- after a set time, named waiting time, from the triggering event has passed, acquires orientation signals provided by the orientation sensor representing the momentary orientation, named final orientation, of the housing,
- compares said displacement energy to said scaling value.
Dependencies are inferred from the claim text.