Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Jean-Marc Alexandre

Robert Boden

Christian Bolzmacher

Moustapha Hafez

Sylvie Lamy-Perbal

Rodolphe Gelin

Mohamed Benali Khoudja

This installation for locating impacts comprises an interactive plate, at least three transducers arranged and distributed against the interactive plate in order to pick up progressive mechanical waves propagating therein and to transform them into electrical signals, and an electronic central unit programmed to locate an impact in the interactive plate by an analysis of the electrical signals that it receives from the transducers. It further includes an additional plate attached to the front face of the interactive plate and having an impact-receiving zone, and means for attaching the additional plate to the interactive plate, configured to ensure contact against the entire portion of the front face of the interactive plate located opposite the impact-receiving zone of the additional plate.

Setup for locating impacts with interactive plate and transducers

This method for manufacturing a device for locating an impact comprising an interactive surface having a front face for receiving an impact and at least three transducers that need to be distributed and attached against the front face or a rear face of the interactive surface, comprises the following steps: determining a central positioning point for each transducer on the front face or rear face of the interactive surface; attaching each transducer, via the lower conductive layer thereof forming a first electrode, around the central positioning point thereof. It further comprises, following the attachment of each transducer, a step of machining the free upper conductive layer of at least one of the transducers, using a machine tool, at least as far as a piezoelectric intermediate layer of this transducer, in order to form a second electrode of this transducer, centering it around the central positioning point thereof.

Method for manufacturing a device for locating an impact having at least three transducers attached against an interactive surface

A device for locating an impact against an interactive surface includes at least three transducers distributed against the interactive surface and an electronic central unit programmed to locate the impact by analysing propagation time differences of progressive mechanical waves from the impact to the transducers on the basis of instants of impact detection identified in the electrical signals supplied by the transducers. The electronic central unit is programmed to trigger an impact detection from a first instant when at least one M-th derivative from at least one of the received electrical signals exceeds a predetermined non-zero threshold value and for then determining, for each electrical signal received from each transducer, at least one second instant, subsequent to the first instant, of the first zero crossing of at least one N-th derivative of this electrical signal, from which is identified at least one instant of impact detection.

Device for locating an impact against an interactive surface, corresponding facilities, method and computer program

A shooting range facility that is for recreational or sporting purposes includes a target support plate, which can be tilted according to several different possible inclinations with respect to a reference plane, and at least one target representation intended to be displayed in a plane of the target support plate. Each target representation has several different displayable deformations, respectively associated with the several different possible inclinations, these different deformations being designed so that the orthogonal projections thereof in the reference plane are all identical when they are respectively displayed in the plane of the target support plate according to the inclinations with which they are respectively associated.

Shooting range facility for recreational or sporting purposes with a tilting target support, method for configuring such a facility

The present invention relates to a device for assisting in the navigation of a person, both inside and outside a building. The device, being fitted to the person, comprises at least: a computer () comprising in memory a digitized map of the place () in which the path of the person is planned between a departure point and an arrival point, and a location software; a human-machine interface linked to the computer; a set of sensors () worn by the person and linked to the computer, the sensors delivering information about the movements of the person; the location software performing a processing of the signals originating from the sensors () and from the interface, and performing the fusion of the data provided by the digitized map and the information arising from the sensors and from the interface, and then calculating on the basis of these data the absolute location of the person on the map and correcting the position estimation errors.

Device for assisting in the navigation of a person

A touch-sensitive display device () is characterized in that it is constituted by a stack of layers (), an insulating layer () comprising recesses () for the displacement of blades () connected to a touch plate () being positioned between the touch plate () and a layer () comprising pancake coils () that can be addressed selectively. By modifying the value of currents sent to the different coils (), the feel of the touch plate () can be modified.

Growing community of inventors

Verrieres-le-Buisson, France

Jean-Marc Alexandre