FR3041232A1 - SYSTEM AND METHOD FOR DETERMINING AND MONITORING THE BEHAVIOR OF AN INDIVIDUAL - Google Patents

Abstract

This system (100) comprises: at least one glass (100), this glass comprising means for obtaining successive measurements (28a) representative of a use of this glass during a measurement period; and determination means (40), based on at least said measurements and determination assistance data associated with at least one use scenario, of at least one behavior of the user of said container during said period.

Description

BACKGROUND The invention is in the general field of behavioral studies. The invention finds a preferred but non-limiting application in a hospital environment.

Monitoring of some hospital residents with behavioral disorders is exceedingly difficult for medical staff. The invention aims a system for improving and facilitating this monitoring.

Object and summary of the invention

Thus, according to a first aspect, the invention relates to a system comprising: at least one container that can contain a liquid, this receptacle comprising means for obtaining successive measurements representative of a use of the receptacle during a measurement period ; and means for determining, at least from these measurements and determination assistance data associated with at least one use scenario, at least one behavior of the user of this container during this process. period.

Correlatively, and according to a second aspect, the invention relates to a method for determining at least one behavior of the user of a container during a measurement period, this method comprising: a step of obtaining successive measurements representative of a use of this container during this period; and a step of determining, from at least one of these measurements and determination assistance data associated with at least one use scenario, at least one of these behaviors.

The term "container" means a glass but also any other type of container, for example a carafe, a bottle, a cup, a bottle or a bowl. The invention thus proposes in a general way to follow or detect the behavior of a person by following the use it makes of a container.

Following the use of a container is of fundamental interest, since it allows both to be interested in the gestures of the user, as well as its consumption of liquid, especially drugs.

In one embodiment of the invention, the means for obtaining successive measurements comprise at least one sensor.

The measurement period may correspond to the activation period of this sensor.

For example, the sensor can determine if the container is moving, in which case the measurement period corresponds to the period during which the container is movable.

In another embodiment, a sensor may detect that the container empties or fills, in which case the measurement period is the period during which the liquid level in the container varies.

This mode advantageously makes it possible to measure the variation in the amount of liquid in the container if the user drinks with a straw without touching the glass.

The beginning of the measurement period may also be when the container is given to the user, and the end of that period when the glass is retrieved by the monitoring staff.

In a particular embodiment, the means for obtaining measurements during a period of time comprise an accelerometer.

In this embodiment, it is possible to measure the acceleration of the container along one or more axes and thus to estimate various parameters such as the speeds along these axes as well as their means and their extremum, the position of the container, the vibrations, shocks, falls.

In a particular embodiment, the means for obtaining measurements during a period of time comprise a gyrometer.

In this embodiment, it is possible to measure the angles of the container along one or more axes and thus to accurately estimate various parameters such as angular velocities and accelerations, as well as their means and extremums.

Furthermore, if the system comprises means for measuring at least on the one hand the orientation of the container and on the other hand its position relative to a known point, such as the user or the handle of the container, then it It is possible to know if this container has been tilted towards the user or on the other hand and thus to facilitate the determination of a behavior of the user consisting in throwing the liquid contained in the container instead of drinking it.

In a particular embodiment, the means for obtaining measurements comprise a flow meter.

In this embodiment, it is possible to measure a flow rate of the liquid out of the container.

In a particular embodiment, the means for obtaining measurements comprise a force sensor placed in the bottom of the container.

This sensor may be a gauge sensor or a resistive force sensor.

In this embodiment, it is possible to associate with a measured voltage the weight of the liquid and to deduce the amount of liquid in the container, from its density.

In a particular embodiment, the means for obtaining measurements comprise conductive plates insulated from each other, and means for measuring the conductance of the volume of liquid between these plates.

In a particular embodiment, the means for obtaining measurements comprise an ultrasonic transmitter and an associated receiver.

In a particular embodiment, the means for obtaining measurements comprise an optical transmitter and an associated receiver.

In the embodiments in which the means for obtaining measurements comprise a transmitter and an associated signal receiver, whether they be ultrasonic, optical, acoustic or of any other type, it is possible to deduce from these measurements the level liquid in the container.

In the same case where the means for obtaining measurements comprise a transmitter and a receiver, this transmitter can be directed towards the interface between the liquid and the air.

Thus the signal can be reflected at this interface so as to determine the level of liquid in the container.

In the case where the means for obtaining measurements comprise a transmitter and an associated receiver, the transmitter can be directed towards the outside of the container.

In this way, the signal can be reflected on an outer element close to the container such as the user's face or mouth.

In a particular embodiment, the means for obtaining measurements comprise a detector of the presence of the skin on an open edge of the container, for example a conductive ring.

In this way, it is easier to determine a behavior of the user to drink the contents of the container.

The measurements can be varied: for example, the weight of the liquid contained in the container, the level of liquid in the container, the flow rate of the liquid, the acceleration and the rotation of the container along one or more axes can be measured. detect the presence of the mouth or face.

In a particular embodiment, the means for determining at least one behavior of the user use one or more parameters obtained from the different measurements.

Among these parameters, we can find measured elements, such as flow or the presence of a mouth. Other parameters for directly or indirectly determining the behavior of the user can be envisaged, for example the position of the container in space, its linear speeds, angular, and its angular accelerations along at least one axis (and a fortiori their averages and their extremum), the gripping time of the container, the detection of a drop of this container, the detection of a tremor of this container, the volume and the weight of the remaining liquid, the maximum and average flow, the Variance of the flow, the total flow over a given period of time, the number of sips, or the average liquid drunk per sip.

An increase in the number of parameters used would imply a precision in the determination of these behaviors at least equal to or even greater.

In one embodiment of the invention: the successive measurements made during a measurement period represent a movement of the user during the measurement period; at least one gesture scenario is used, which data associated with the determination aid is associated with; and the means for determining the behaviors are able to determine a gesture of the user during this period, from these data and measurements.

Thus, it is possible for example to detect behavioral disorders such as repetitive tremors of the user. Such detections can advantageously be carried out in home care in a preventive manner, for example to detect the occurrence of Parkinson's disease.

In one embodiment of the invention: the measurements represent the quantity of liquid contained in the container during the measurement period; at least one emptying scenario of the container is used; and the means for determining the behaviors are able to determine a quantity of liquid bu and a quantity of liquid wasted by the user during this period.

In many hospital departments, residents are prescribed a certain amount of water to drink, a number of effervescent or diluted drugs, and possibly other drinks.

The consumption of these liquids in the prescribed quantities can be essential or even vital. However, it is difficult for the monitoring staff (nurses, doctors, etc.), given the large number of residents, to check whether the quantities administered are actually drunk at the prescribed rate.

This verification can be even more difficult if some people who are ill or old take a long time to consume these liquids, forget to do so, spill their glass without the monitoring staff noticing it or simply refuse to drink by throwing away the contents of the drink. glass.

This embodiment makes it possible to answer this problem.

It may be noted that this invention differs from that described in the document US2014 / 0372045 published December 18, 2014, the system described in this document does not distinguish if the contents of a container has been drunk or wasted. The invention proposes to characterize a dump or gesture scenario with a set of so-called determination assistance data (hereinafter "data").

These data can be obtained by identifying the characteristics of a repeated scenario during a preliminary test period by a sample of individuals.

As regards more particularly the consumption and the waste of a liquid, these data make it possible for example to connect a measurement or a parameter with two complementary probabilities called "relative": - the relative probability that the liquid is drunk during the period of measurement; and the relative probability that the liquid is wasted during this measurement period.

A use of the container during a measurement period makes it possible to calculate two so-called "general" probabilities that the liquid is drunk and that the liquid is wasted, by combining the relative probabilities calculated for each of the measurements and / or parameters for this use. .

This combination method can furthermore correspond to the so-called "Bayesian" method.

In a particular embodiment, the liquid is considered "drunk" if the general probability that it is drunk is greater than the general probability that it is wasted. Otherwise, the liquid is considered "wasted".

It should be noted that these general probabilities are not necessarily complementary.

Among the scenarios in which the liquid is wasted, it can be thrown, poured, ejected, sponged, or drain from an overturned or broken glass.

Among the scenarios in which the liquid is drunk, it can be in the form of successive sips of any duration or milking; but it can also be sucked, sipped, or ingested in any way, for example with a straw. From measurements made over a measurement period and possibly calculated parameters, depending on whether the liquid is considered drunk or wasted, the amounts of drunk and wasted liquid are deduced therefrom. By way of example, an item of aid for the determination may consist of a curve representing the probability that the liquid contained in the glass has been drunk as a function of the average flow rate of the liquid out of the glass.

In a particular embodiment, the determination means are incorporated in the container, in which case the system according to the invention is reduced to this container.

These means may be incorporated in the bottom of the container or below this container, or on its contours. They can also be incorporated in a handle or lid of the container.

In a particular embodiment, the system comprises equipment capable of communicating with one or more containers, the determination means being distributed between these containers and this equipment.

This equipment can be any computer device equipped with a transmitter / receiver, such as a computer, a phone or a tablet.

In this embodiment, it is possible to centralize the place of determination of the quantities of several different containers.

In a particular embodiment, the measurements representative of a behavior of the user during a measurement period comprise: an initial quantity of liquid at the beginning of this period; - a final quantity at the end of this period; and successive measurements representative of the evolution of at least one inclination angle of the container during this period.

Thus, it is possible to simplify the process of obtaining the amounts of liquid bu and wasted liquid, the successive measurements of the angle of inclination of the container during the measurement period being sufficient.

In a particular embodiment, the container has two separable parts: a first part called "container" containing the liquid and a second part comprising at least one electronic element.

These electronic elements can be sensors, transmitters, microprocessors, memory cards, components or electrical circuits, and other elements necessary for the different measurements, the recording of these measurements or even the method for determining the behavior. of the user.

The container can be attached to the second part by a magnetization system, a mechanical clip, a clip or a flange.

It is then possible to wash the container without risk of damaging the detachable part containing the electronic elements or to facilitate its maintenance or repair.

In a particular embodiment, the container comprises an indicator for determining whether or not the quantity of liquid bu belongs to a specific range.

In this embodiment, it is possible for a third party or the user himself to know visually whether the quantities have been respected or not by the latter.

In a particular embodiment, the system includes a method of tracking at least one extended behavior of a user during a follow-up period, this method comprising: a step of recording an identifier of the user; user in a database; a step of determining at least one point behavior during at least one measurement period; and a step of determining this prolonged behavior during a follow-up period based on these one-off behaviors.

This method facilitates the daily or weekly monitoring of several residents of the same hospital by the monitoring staff.

In a particular embodiment, this monitoring method is characterized in that the prolonged behavior studied during the monitoring period is constituted by the consumption of a quantity of liquid drunk in the container and the waste of this quantity of liquid during a period of time. follow-up period, this method comprising: a step of registering an identifier of the user in a database; a step of determining the quantities of liquid drunk and wasted during at least one measurement period; and a step of determining the amount of liquid dr and the amount of liquid wasted during the monitoring period from the amounts of liquid dr and amounts of wasted liquid during the measurement periods.

In a particular embodiment, the method for monitoring at least one prolonged behavior of a user comprises: a step for associating a user's identifier with a minimum quantity and a maximum quantity of liquid to drink during at least one follow-up period; and a step of generating a signal whose state is determined as a function of the quantity of liquid bu and of these minimum and maximum quantities.

In this embodiment, it is for example possible to detect abnormal behavior of one of these residents in relation to his habits and inform the medical monitoring staff. The invention can be used in a hospital, but also at home, in a medical setting or not. The invention can also be applied in different fields, such as sports, ecology or monitoring the hydration of infants, for example.

BRIEF DESCRIPTION OF THE FIGURES Other features and advantages of the invention will appear on reading the description and the appended figures of alternative embodiments of the invention given by way of indicative and nonlimiting example, and of: FIG. 1 showing a system according to a first embodiment of the invention, consisting of a container. FIGS. 2A to 2G representing various sensors that can be used in the invention, as well as their possible positions; FIG. 3 represents, in flowchart form, the main steps of a method for determining the amount of liquid drunk and wasted that can be implemented by the container of FIG. 1; FIGS. 4A to 4E illustrating various decision data that can be used to determine the probabilities that the liquid is drunk or wasted during a measurement period; - Figure 5 showing a system according to a second embodiment of the invention, the system comprising a computer equipment capable of communicating with one or more containers according to the invention; FIG. 6 showing an example of use of the system of FIG. 4 in a hospital; and FIG. 7 represents a method of monitoring the consumption according to the invention implemented by the system of FIG. 4.

DETAILED DESCRIPTION OF THE EMBODIMENTS

FIG. 1 represents a first system 100 according to the invention.

In this embodiment, the system 100 is a container, more exactly a glass.

In the embodiment described here, this glass is in two parts, namely a container 10 capable of containing a liquid and a second part 20 constituting the base of the glass.

These two parts can be assembled and detached from each other by means 30.

In the embodiment described here, these means 30 consist of two circular magnet rings 30a and 30b.

In one embodiment of the invention, the container 10 has one or two non-represented studs that can be inserted into corresponding holes in the base 20.

Thus, these pads prevent the user puts the container without inserting it in the base.

In the embodiment described here, all the electronic components of the glass are contained in the base 20. This allows among other things to be able to clean the container 10 independently, without damaging the components contained in the base 20.

In the embodiment described here, in the base 20, there is an "electronics" 40 and a sensor 28a, outside this electronics. The different components of the electronics 40 and the sensor 28a are interconnected by a bus system.

This electronics 40 constitutes an example of determination means within the meaning of the invention. The electronics 40 comprises, in the embodiment described here, a microprocessor 22, a memory 24, an accelerometer 26 and a gyrometer 27.

In the embodiment described here, the sensor 28a is a resistive sensor for determining the weight of the liquid in the glass to be able to deduce the amount of this liquid.

The memory 24 comprises a computer program for carrying out the steps of a method for determining the amounts of liquid drunk and wasted during a measurement period according to the invention, the main stages of which will be described later. with reference to FIG.

With reference to FIGS. 2A to 2G, we will now describe various sensors that may be used in the invention as well as possible positions of these sensors on the container. In general, these sensors make it possible to obtain successive measurements representative of the evolution of the quantity of liquid contained in the container during a measurement period. In the example of Figure 1 previously described, the sensor 28a was a resistive sensor. In FIG. 2A, the sensor 28b is an ultrasonic transceiver. This transceiver is attached to a loop of the container, above the surface of the liquid. In Figure 2A, the electronics 40 is placed in this loop.

Figure 2B shows a variant of Figure 2A in which the electronics 40 is placed in the bottom of the glass. Those skilled in the art will understand that in this variant of Figure 2B, connecting means connect the transceiver 28b to the electronics 40. They may for example be located inside the walls of the upper part 10 of the container.

Alternatively, this ultrasonic transceiver 28b can be directly in the base 20 at the same place as the resistive sensor 28a of Figure 1.

With reference to FIG. 2C, we have shown a sensor 28c consisting of an optical transceiver. This sensor and the electronics 40 are placed in a cover 32 having an opening 33 for the liquid outlet.

FIG. 2D shows an embodiment in which the container 100 comprises the electronics 40 in its base and an optical transceiver 28b or ultrasound 28c placed on a wall inside the part 10 of the glass containing the liquid, in a non-upper zone. tip. The transceiver is connected to the electronics 40 by a bus.

The optical 28b and ultrasonic 28c transceivers measure their distances to the air / liquid interface which will allow to deduce the level of the liquid in the container.

FIG. 2E shows an embodiment in which the glass 100 comprises a flowmeter 28d connected to the electronics 40, placed on an inner wall at the part 10 of the glass, in a zone greater than a place where the water is evacuated necessarily, the flowmeter being able to measure the speed of discharge of the liquid out of this glass. The flowmeter is connected to the electronics 40 by a bus.

FIG. 2F shows an embodiment in which the glass 100 comprises conductive plates 28e placed in the walls of this glass, these plates making it possible to calculate the conductance inside the container 10 to then allow to deduce therefrom an amount of water present in it.

FIG. 2G shows an embodiment in which the glass 100 comprises a conducting ring 28f placed on the edge of the glass, this ring making it possible to detect the presence of the mouth of the user in contact with the glass. This ring is connected to the electronics 40 by a circuit 31 placed in the walls of the glass.

Referring to Figure 3, we will now describe the main steps E10 to E50 of a method for determining the amounts of liquid drunk and wasted according to a particular embodiment of the invention.

This method can be implemented by the microprocessor 22 of a container 100 as previously described in FIGS. 1 to 2G.

In the embodiment described here, this method comprises a loop successively repeating step E10, each execution of this step making it possible to obtain one or more measurements representative of the quantity of liquid contained in the container. This loop performs successive measurements during a so-called measurement period.

These measurements may consist for example of: the speed V (t) of discharging the liquid out of the glass, for example by using the flow meter 28d of FIG. 2E; the weight P (t) of the liquid in the glass, this weight being measurable by means of the resistive sensor 28a of FIG. 1; an angle t (t) of inclination of the lens, relative to the normal at the bottom of this lens, this angle being measurable by the gyrometer 27 of FIG. 1; and accelerations ai (t) along one or more axes, each of these accelerations being able to be measured by virtue of the accelerometer 26 of FIG.

This measurement period can begin when an event is detected, this event being able for example to consist of: the filling of the glass; - the moment when the user raises the glass; - the moment when the user presses a reset button on the glass.

The measurement period may end, for example, when detecting an event that can be selected from: the moment when the glass is empty; - the moment when the user rests the glass; - the moment the user presses the reset glass button.

In the embodiment described here, parameters are obtained from the previous measurements during a step E20. This step is optional.

Among these parameters, we can find the aforementioned measures such as the flow V (t), the level N (t) or the presence of a mouth, but also the position of the container (x (t), y (t), z (t)) in space, its linear, angular velocities, and its angular accelerations along at least one axis (and even more so their means and their extremum), the volume and the weight of the remaining liquid, the maximum and average flow, the variance of the flow rate, the total flow rate over a specific period of time, the number of sips, the duration of the container's grip, the detection of a fall or not of that container, the average liquid drunk per sip or any other interesting parameter to determine the quantities drunk and wasted. The step E10 of measurements or the step E20 of obtaining the parameters is followed by a step E40 of processing of the measurements and possibly of the parameters, when it is implemented, making it possible to obtain the probability that the liquid has been bu PB and the probability that the liquid was wasted PG during a measurement period.

This processing step E40 uses a set of determination assistance data 50i such as probability curves or correspondence tables, various examples of which will be given later with reference to FIGS. 4A to 4E.

This determination aid data can be generated upstream from the analysis of different emptying scenarios.

These data can also be generated by learning, and modified automatically during several uses of the invention by the user, depending on the measurements made and the calculated parameters.

For example, if during a plurality of measurements, for a given user, an average quantity of liquid consumed per very low repetitive sip is detected, then the probability that the liquid has been drunk for average amounts of liquid consumed per sip plus will be decreased, which corresponds to a modified data.

Referring to Figure 4A, we will describe a first example of the processing step E40.

This step is based on a single measurement namely the speed V (t) of flow of the liquid out of the container at different times of the measurement period.

In this example, a curve 50i shown in FIG. 4A is used as a determination aid.

This curve can be obtained from tests performed upstream for various dump or refined scenarios during a learning period.

It represents on the ordinate the probability that the liquid is drunk as a function of the average flow rate of the liquid. The method of plotting this curve can consist of performing a number of tests by observing a particular user, or a population of drinking users and calculating the average flow rate while the user is drinking. The treatment of step E40 consists, in this example, in determining, from the curve, the probability that the liquid is drunk as a function of the average flow rate of the liquid measured during the loop of steps E10. For example, if during this loop, we measure that the average flow rate is 1 cl / s, the probability that the liquid is drunk and not wasted during this measurement period from this information alone is 0, 5.

With reference to FIG. 4B, we will describe another example of processing step E40.

In this example, we use as a parameter, the gripping time of the container glass, namely the time that elapses between the moment when the user lifts the glass and the moment when it rests. These events can be determined, for example by using the accelerometer 26 or the gyrometer 27 of FIG.

In this example, the determination aid data associate with a 50 ° curve, at different values of the gripping time of the glass, a probability that the liquid is actually drunk and not wasted.

Figure 4C illustrates another embodiment of step E40.

In this embodiment, step E40 essentially consists in determining from a 5Ο3 correspondence table the probability that the liquid is drunk or wasted as a function of a binary event. This event may for example be constituted by the detection of the fall of the glass by the accelerometer. If the method detects the fall of the glass, in this example, the probability that the water will be wasted is 1.

Another example may be that in which the presence of the lips of the user is detected on the edge of the glass, an event for which the probability that the liquid has actually been drunk is close to 1.

FIG. 4D illustrates a substep that can be used in a step E40 according to the invention. This substep makes it possible to determine the number of sips drunk by the user as a function of the flow evolution curve 504, or of another parameter over time.

This number of sips, can then be used, as in the table 505 of Figure 4E, to determine the probability that the liquid is drunk relative to this parameter alone. For example, if four sips are detected, the parameter between 2 and 5 gives a probability that the liquid is drunk, relative to this number of sips, 0.7. Other steps of treatment of the parameters not shown can consist in associating a probability that the liquid is drunk to ranges in which can be found the various parameters including, for example an average flow, a maximum flow, a time spent drinking, the flow rate for a predetermined time or a quantity of water discharged during a predetermined period of gripping of the container.

These processing steps may also consist of associating this probability with a binary event such as the detection of the lips or the fall of the glass. The step E40 for processing the measurements and possibly the parameters and calculating the probabilities associated with them may be the combination of one of the steps or sub-steps given previously by way of example.

The probability that the liquid was drunk or the probability that the liquid was wasted during the measurement period, both general, are obtained by combining the different probabilities for a single parameter each. The step E50 makes it possible to deduce the quantities of liquid drank and wasted from the previous probabilities as well as measurements possibly including parameters.

For a given measurement period, for example, it may be considered that the liquid has been drunk during this measurement period if the probability that the liquid has been drunk is greater than the probability that the liquid has been wasted, and it will be considered that the liquid was wasted otherwise.

We can then deduce the amounts of liquid drunk and wasted using the measurements and calculated parameters.

Steps E10 to E50 constitute a general step E2 that can be used in a tracking method which will be described later with reference to FIG.

FIG. 5 represents a system 101 according to a second embodiment of the invention.

This system comprises two glasses 10 'and a computer equipment 90 able to exchange by wireless communication means with each of these glasses.

The glasses 10 'are distinguished from the glasses 10 described with reference to FIGS. 1 to 2G in that they comprise, in their electronics 40, communication means compatible with those of the computer equipment 90. By way of nonlimiting example these means of communication may be constituted by means complying with the Bluetooth standard or Wifi standard.

Alternatively, the containers 10 'may contain a base connectable to the equipment 90 by wire communication means.

Moreover, the means for determining the amounts of liquid drunk and wasted can be either in the electronics 40 or in the equipment 90, or in both at once.

In the embodiment described here, the equipment 90 includes a memory in which at least one patient is stored a minimum quantity and a maximum quantity to drink during a follow-up period.

In the embodiment described here, the container 10 'has a light indicator 93 to fulfill the following functions: - Visual indication helping the user to appreciate the gripping area of the glass; - Indication that the minimum quantity to be drunk is not reached or the maximum quantity to be drunk is exceeded; - Indication that the container has not been cleaned for a predetermined period.

These indications are received by the container 10 'coming from the equipment 90.

Alternatively, the container 90 may include several lights for each of these different functions.

Thus, these embodiments may allow the medical staff, when he realizes that the quantity to be drunk is not respected, to encourage the resident to increase or decrease its consumption.

Alternatively, these embodiments may allow the medical personnel, when he realizes that the container has not been cleaned to recover the container to be washed.

This embodiment advantageously allows to fight against the problems related to bacteriological risks.

FIG. 6 represents a particular application of the system of FIG. 4. In this application, the computer equipment 90 is placed in the office 70 of the medical monitoring personnel, for example a doctor or a nurse, each of the glasses 10 being assigned to a resident of the hospital in rooms 72 separated from the office 70 by a corridor.

In this embodiment, the system of FIG. 5 constituted by the computer equipment 90 and the glasses 10 'implement the tracking method which will be described with reference to FIG.

Referring to Figure 7, we will now describe a method of monitoring fluid consumption by patients in chambers 72 over a period of time.

In this example, during a step F10, in a computer equipment database 90, a quantity of liquid to be drunk during a follow-up period is recorded for each resident of the hospital.

In this embodiment, the memory 24 of the glass has a unique identifier assigned to each of the residents, this identifier being associated in the aforementioned database to the quantity to be drunk. In general, in this example, the glasses 10 'perform measurements during the general step E2 described above with reference to Figure 3 to determine the quantities drunk and wasted. Then they communicate regularly, or on command, these quantities to the computer equipment 90, by their means of communication 28.

These quantities are associated with the identifier of each of the containers, so that the computer equipment can accumulate these amounts for each of the residents during a step F30 to deduce the quantities drunk and wasted during the monitoring period. In a step F40, the computer equipment 90 determines whether the quantities drunk QB for each of the patients during the follow-up period correspond to the quantities to be drunk QAB.

If this is not the case, in the embodiment described here, the computer equipment 90 sends to the glass concerned, in a step F50, an alert message, which can be translated, at the glass by a light or sound alert. In the embodiment described here, the glass 10 'has a light alert 93.

Claims (11)

1. System (100, 101) comprising: at least one container (100) capable of containing a liquid, this container comprising means for obtaining successive measurements (28a, 28b, 28c, 28d, 28e, 28f) representative of a use said container during a measurement period; and determination means (40), based on at least said measurements and determination assistance data associated with at least one use scenario, of at least one behavior of the user of said container during said period. 2. System (100,101) according to claim 1, characterized in that: - said measurements represent a movement of the user during said measurement period; in that - said at least one scenario is a gestural scenario; and in that - said determination means are able to determine a gesture of the user during said period. 3. System (100,101) according to claims 1, characterized in that - said measurements represent the amount of liquid contained in the container during said measurement period; in that - said at least one scenario is a scenario of emptying the container; and in that - said determining means is adapted to determine a quantity of liquid bu (QB) and a quantity of wasted liquid (HQ) by the user during said period. 4. System (100,101) according to any one of claims 1 to 3 characterized in that said determining means are incorporated in said container (100) or distributed between said at least one container (101) and equipment (90) fit communicating with said at least one container (101). 5. System (100,101) according to any one of claims 1 to 4, wherein said means for obtaining measurements comprise at least one sensor selected from: - an accelerometer (26); a gyrometer (27); - A force sensor placed in the bottom of the container, adapted to allow the estimation of the weight of the liquid (28a); - conductive plates insulated from each other, able to allow the estimation of the conductance of the volume of liquid between said plates (28e); an ultrasonic transmitter and an ultrasound receiver emitted by said emitter (28b); an optical transmitter and a receiver of light rays emitted by said optical transmitter (28c); a detector for the presence of the skin on an open edge of the container, for example a conductive ring (28f); and a flow meter (28d) for measuring a velocity (V (t)) of flow of the liquid out of the container. 6. System (100,101) according to any one of claims 1 to 5, characterized in that said at least one container comprises two separable parts: a first portion (10) containing the liquid and a second portion (20) comprising at least an electronic element. 7. Method for determining at least one behavior of the user of a container during a measurement period, this method comprising: a step of obtaining successive measurements representative of a use of said container during of said period; and a step of determining, at least on the basis of said measurements and determination assistance data associated with at least one use scenario, of said at least one behavior. 8. Determination method according to claim 7, characterized in that: - said measurements represent the quantity of liquid contained in the container during said measurement period; in that - said at least one scenario is a scenario of emptying the container; and in that - said determining step is capable of determining a quantity of liquid bu (QB) and a quantity of wasted liquid (HQ) by the user during said period. 9. Method of tracking at least one prolonged behavior of a user, said method comprising: a step of recording an identifier of said user in a database; a step of determining at least one point behavior during at least one measurement period, using a method according to claim 7 or 8; and a step of determining said prolonged behavior during a follow-up period from said point behaviors. 10. A method of monitoring according to claim 9 characterized in that said prolonged behavior is constituted by the consumption of a quantity of liquid bu contained in the container and the waste of a quantity of said liquid, said method comprising: a step ( F10) registering an identifier of said user in a database; a step (E2) of determining the quantities of liquid drunk and wasted during at least one measurement period, using a method according to claim 8; and a step (F30) of determining the amount of liquid bu and the amount of liquid wasted during a follow-up period from the quantities of liquid dr and the amounts of liquid wasted during said at least one period measurement. 11. The method of claim 10, said method comprising: - a step (F10) for associating said identifier with a minimum amount and a maximum quantity of liquid to be drunk for at least one monitoring period; and a step of generating a signal (F50) whose state is determined as a function of the quantity of liquid bu and said minimum and maximum quantities.