Abstract: A method for recharging an electrical energy storage device of all or some of a plurality connected to the chain. All the vehicles connected to the chain being referred to as the stock. Each vehicle includes an electronic circuit connected to the energy storage device. An electric current flowing between the electronic circuits of at least two consecutive vehicles among the vehicles in the stock recharges the energy storage device or devices.

Abstract: A method for recharging an electrical energy storage device of all or some of a plurality connected to the chain. All the vehicles connected to the chain being referred to as the stock. Each vehicle includes an electronic circuit connected to the energy storage device. An electric current flowing between the electronic circuits of at least two consecutive vehicles among the vehicles in the stock recharges the energy storage device or devices.

Abstract: A detection device, for placement under or on a mattress, configured for the movements of a person lying on the mattress, includes a sensing portion having an inflatable chamber intended to be positioned under the individual, an electronic unit arranged at a distance from the sensing portion and having a pressure sensor, intended to be positioned outside of the bedding, a transmitting portion interposed between the sensing portion and the electronic unit, including a channel establishing a fluid connection between the inflatable chamber and the sensor, the channel having a transverse dimension (T) that is much smaller than the width (L1) of the chamber.

Abstract: Weighing device of the digital bathroom scale type, comprising four feet each having a strain gauge, four conducting portions on the top surface, and one electronic control unit, the electronic unit being configured to measure first signals indicative of periodic variations in weight and second signals indicative of periodic variations in impedance caused by the heartbeats of the user, the electronic unit being configured to determine the heart rate of the user from the first and second signals. Method for determining the heart rate of the user from the first and second signals.

Abstract: Method to determine the arterial stiffness of an individual user (U) standing on a personal electronic scale having a top surface with at least three conductive pads on one of the left or right side of the scale, /a/—acquiring weight variations, and extracting therefrom a ballistocardiogram of the user's heart beat, /b/—acquiring impedance plethysmography signals across one of the foot of the user, and extracting therefrom a blood pulse signal at the foot, /c/—calculating a time delay (DT) between the heart beat and the blood pulse signal arriving at the foot, /d/—deducing therefrom a value of the arterial stiffness of the user

Abstract: Device for measuring the concentration of a predetermined gas, in particular CO2, comprising a cavity, a light source emitting light rays within a basic spectral range including visible and infrared, a detector configured to receive a portion of the light rays within a first predefined spectral range corresponding to high absorption of the predetermined gas, a photodiode configured to receive a portion of the light rays within a second predefined spectral range corresponding to low absorption of the predetermined gas, a control unit configured to calculate the concentration of the predetermined gas by comparing the radiant power received by the detector to the radiant power received by the photodiode.

Abstract: Weighing device of the digital bathroom scale type, comprising four feet each having a strain gauge, four conducting portions on the top surface, and one electronic control unit, the electronic unit being configured to measure first signals indicative of periodic variations in weight and second signals indicative of periodic variations in impedance caused by the heartbeats of the user, the electronic unit being configured to determine the heart rate of the user from the first and second signals. Method for determining the heart rate of the user from the first and second signals.

Abstract: Device for measuring the concentration of a predetermined gas, in particular CO2, comprising a cavity, a light source emitting light rays within a basic spectral range including visible and infrared, a detector configured to receive a portion of the light rays within a first predefined spectral range corresponding to high absorption of the predetermined gas, a photodiode configured to receive a portion of the light rays within a second predefined spectral range corresponding to low absorption of the predetermined gas, a control unit configured to calculate the concentration of the predetermined gas by comparing the radiant power received by the detector to the radiant power received by the photodiode.

Abstract: A detection device, for placement under or on a mattress, configured for the movements of a person lying on the mattress, includes a sensing portion having an inflatable chamber intended to be positioned under the individual, an electronic unit arranged at a distance from the sensing portion and having a pressure sensor, intended to be positioned outside of the bedding, a transmitting portion interposed between the sensing portion and the electronic unit, including a channel establishing a fluid connection between the inflatable chamber and the sensor, the channel having a transverse dimension (T) that is much smaller than the width (L1) of the chamber.