Hitachi Computer Products (europe) S.a.s.

Florent Voisin

Joaquim Da Silva

Claude Launay

Shunji Maeda

Takanori Ninomiya

Tomoaki Hirai

A detection assembly for detecting a morphology of a person is provided. The assembly includes a sensor and a processing unit. The sensor includes (i) first and second main linear electrodes covering different zones of a plane, and (ii) a third auxiliary linear electrode having substantially at least an open loop shape and almost entirely surrounding the first and second main electrodes in said plane. The processing unit is connected to the electrodes and is for (i) powering the electrodes at controlled voltage levels, (ii) making use of signals taken from the electrodes in the form of ratios between two of the signals, and (iii) delivering binary signals representing a percentage by which a main electrode is covered by comparison of a signal taken from the main electrodes with a predetermined threshold, and analog signals representing a percentage of covering of at least one electrode.

Capacitive sensor for morphological discrimination of a motor vehicle seat occupant

The present invention relates to a method determining the morphology of the occupant of an automotive car, characterized in that it comprises the steps of collecting () the outputs of a plurality of capacitive sensors () provided on a seat, determining for each capacitive sensors () a first value representative of the distance (di) separating a target () from the sensor () and a second value (Sdi) representative of the surface of the sensor () covered by the target (), applying () to the second values (Sdi) representative of the surface of the sensor () covered by the target () a respective weighting (Wi) based on the corresponding first value (di) representative of the distance separating the target () from the same sensor (), and determining () the morphology of the target () on the basis of the collection of weighted second values (SdixWi).

Method for determining the morphology of an occupant in an automotive seat with capacitive sensors

The present invention relates to a method for discriminating the morphology of a passenger seating in an automotive seat, comprising the steps of i) providing a set of a plurality of capacitive sensors () covering substantially a transversal cross section of a seat, ii) collecting the outputs of said plurality of capacitive sensors () provided on the seat, iii) determining the morphology of a target () facing the seat on the basis of measured distance separating the target () from the sensors () and measured surface of the sensors () covered by the target (), from said outputs, and iv) comparing the determined morphology with at least a reference so as to classify the determined morphology between a plurality of reference ones.

Method using capacitive sensors for morphology discrimination of a passenger seating in an automotive seat

The present invention relates to a method to locate a target in regard of a sensor, comprising the steps of collecting the outputs of a capacitive sensor comprising a plurality of electrodes and combining said outputs so as to obtain a signal representative of the distance separating said target from the sensor.

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Guillerval, France

Florent Voisin