Abstract: A method of detecting an earthquake is described, comprising receiving a signal representative of measurements of three-dimensional acceleration of the device as a function of time; frequency filtering of the signal; determining, from the filtered signal, data representative of acceleration directions as a function of time; an earthquake being detected if a) the magnitude of the acceleration is greater than a first threshold and the directions of the acceleration are substantially collinear with one another for a first time interval; or b) the directions of acceleration are substantially collinear with one another during a second time interval, and the directions of acceleration are substantially collinear with one another during a third time interval subsequent to the second time interval, and the directions of acceleration of the second interval and the third interval are substantially orthogonal.

Abstract: A method for monitoring a solenoid valve, including regularly repeated monitoring stages and each comprising the steps of driving the electric motor of the solenoid valve to modify the current position of it movable member; evaluating a monitoring value representative of an inrush current of the electric motor during the driving step; comparing the monitoring value with at least one first predetermined threshold and, if the monitoring value is greater than said first predetermined threshold, implementing at least one corrective action to avoid a blockage of the solenoid valve.

Abstract: An ultrasonic fluid meter includes an ultrasonic measuring device, a valve comprising a movable member, a position sensor configured to measure the current position of the movable member, a pressure sensor arranged to measure the pressure of the fluid in the conduit; and a processing circuit arranged, if the current position of the movable member is such that the current flow rate cannot be measured by the ultrasonic measurement device, to evaluate the current flow rate as a function of the current position of the movable member, of the pressure of the fluid to the current flow rate, and of the pressure of the fluid at zero flow rate.

Abstract: A device for monitoring humidity on or in a printed circuit includes a first track and a second track printed on the printed circuit, and not connected to one another, a test device arranged to apply a test voltage on one of the first track and second track, the other track being connected to a constant or controlled voltage reference, compare a target voltage, representative of an impedance between the first conductive track and the second conductive track, with a predetermined threshold, and detect a humidity level which is too high according to a result of said comparison.

Abstract: A measuring method, implemented in a meter (1) including a conduit (4) in which a fluid circulates, and an ultrasonic measuring device (6) including an upstream transducer (7a) and a downstream transducer (7b), the measuring method including the steps of applying an excitation electrical signal (Se) to the terminals of the upstream transducer, and acquiring a downstream electrical signal produced by the downstream transducer; applying the excitation electrical signal to the terminals of the downstream transducer, and acquiring an upstream electrical signal produced by the upstream transducer; and evaluating a flow rate of the fluid in the conduit, according to a first value representative of a difference between an amplitude of the upstream electrical signal and an amplitude of the downstream electrical signal.

Abstract: A monitoring method is implemented in a fluid meter (1) which includes a measuring device (6) arranged to measure a flow rate of the fluid and a valve (12). The monitoring method includes a preliminary phase including the step of acquiring first flow rate measurements, and a detection phase, carried out when the flow rate remains non-zero and less than a predetermined first threshold for at least one predetermined duration, and including the steps of verifying that the valve is open and, if this is the case, closing the valve, acquiring at least one second flow rate measurement, and detecting a fluid leak if the flow rate is zero.

Abstract: Provided is a controller of a smart meter that includes a processor incorporating a debugging module configured to stop execution of instructions when a stop point is reached and to generate an associated hardware interrupt. For applying a correction to a set of instructions, the controller: receives a new-correction message that supplies the correction to be applied and a point of stopping application of the correction in the set of instructions executed by the controller; records correction instructions in non-volatile memory for future restarting of the smart meter, and in random access memory for the purpose of taking into account without restarting the smart meter; configures the debugging module with the point of stopping application of the correction; and applies on the fly the correction instructions of which are recorded in random access memory, when detecting a hardware interrupt associated with the point of stopping application of the correction.

Abstract: A wear evaluation method for evaluating the wear of a vehicle wheel tire (3) having a tread with a crown area, the method comprising the following measurement steps: causing a transducer (1) positioned on the vehicle in the proximity of the tire (3) to emit a first ultrasonic signal (S1); acquiring an electrical measurement signal produced by said transducer when it receives a second ultrasound signal (S2) resulting from the first ultrasonic signal being reflected by a metal target (4) incorporated in the thickness of the crown area of the tire; measuring at least one parameter of the electrical measurement signal; evaluating the wear of the tire from said parameter.

Abstract: Dust filter (12), arranged to be installed in a gas meter upstream of a measuring module measuring a flow rate of a gas, the filter (12) comprising a housing (20) inside which a first chamber (23) and a second chamber (24) are defined, the first chamber being located above the second chamber when the filter is installed in the meter, the housing comprising an inlet opening (28) and outlet openings (34) formed at the first chamber, a filtering medium (50) being installed in the first chamber, the filter is arranged such that, when installed in the meter, gas enters the filter via the inlet opening, passes through the filtering medium, and exits the filter via the outlet openings, dust particles contained in the gas are then deposited on the base of the second chamber (24).

Abstract: Dust filter (40) for a gas meter (1) which comprises an inlet channel (41) and an outlet channel (42) passing through one same first plane (P1), the dust filter comprising a filtering medium (43) wherein a hole is made, a cross-section of the filtering medium and a cross-section of the hole, along a second plane (P2) perpendicular to a thickness of the filtering medium, having for shapes, the shapes of a cross-section of the inlet channel and of the outlet channel along the first plane, the dust filter (40) thus being arranged such that, when it is installed in the meter (1), the gas, before entering into the measuring module, passes into the inlet channel through the filtering medium, and after exiting the measuring module, passes into the outlet channel through the hole.

Abstract: The present disclosure relates to a method for supervising the electrical consumption of a battery-powered smart meter, including a measurement relating to the electrical current consumed by said meter, characterized in that it includes: an identification of at least one functionality implemented by the meter by comparison of data relating to this measurement that are measured with signatures stored in a signature database, each signature of said base being representative the consumption of the meter during the implementation of a functionality by said meter in a nominal operating mode of the meter; a monitoring over time of the sequence of functionalities thus identified and the detection of a possible drift compared to a nominal operation.

Abstract: A method including the steps of: causing to transmit a first radio signal carrying payload data, such that the time interval separating the transmission of the first radio signal and the transmission of a preceding signal is equal to a period (Pt) stored by the transmitter, the first radio signal carries a first frame of the payload data having a size equal to a size (Tt) stored by the transmitter; an estimate of a quantity of energy consumed by the transmitter to transmit the first radio signal; a comparison between the consumed quantity of energy and a reference quantity of energy; an update of the stored period (Pt) and/or of the stored size (Tt) on the condition that a difference between the estimated quantity of energy and the reference quantity of energy is greater than a previously defined threshold.

Abstract: A prediction method for predicting freezing of a liquid flowing in a pipe of a liquid meter includes steps of: acquiring measurements of air temperature in the liquid meter; evaluating an air temperature prediction parameter and then, from the air temperature prediction parameter, evaluating a liquid temperature prediction parameter; using the liquid temperature prediction parameter to estimate a duration-to-freezing between a present instant and an instant at which the liquid risks freezing; and generating an alarm if the duration-to-freezing is less than a predetermined time threshold.

Abstract: A method for managing a communicating meter, for measuring consumption of a fluid, the meter including a measurement unit for acquiring measurements of consumption of the fluid at a parameterisable frequency. The method is implemented by the communicating meter and the method includes the following steps: acquiring at least one value of the consumption flow rate (d(t)) of the fluid at an active parameterisable frequency (fact), (e) updating the active parameterisable frequency (fact) at least according to the value of the flow rate (d(t)) acquired, according to at least one other flow rate value previously acquired and according to a frequency determined from a non-zero probability (p(t)) of a variation in consumption flow rate of the fluid higher than a flow rate variation threshold, and reimplementation of the method with the updated active parameterisable frequency.

Abstract: A method for managing a communicating meter supplied by cell, for measuring consumption of a fluid, the meter including a measurement unit. The meter has three operating modes: a nominal operating mode wherein the measurement unit makes measurements at a predetermined nominal frequency, a degraded operating mode wherein the measurement unit makes measurements at a predetermined degraded frequency lower than the nominal, and a minimum operating mode wherein the measurement unit makes measurements at the predetermined degraded frequency, and a control unit of the meter performs the following steps: making an estimation of the remaining capacity of the meter battery; requesting that the meter passes from the nominal to the degraded operating mode when the estimation is below or equal to a first threshold; and requesting that the meter passes from the degraded to the minimum operating mode when the estimation is below or equal to a second threshold.

Abstract: An ultrasonic fluid meter comprising a conduit in which a fluid can flow, an ultrasonic measuring device comprising an upstream transducer and a downstream transducer for evaluating a current flow rate, a valve comprising a movable member for controlling the current flow rate, a position sensor for measuring a current position of the movable member, a processing circuit for, if the current position of the movable member is such that the current flow rate cannot be measured by the ultrasonic measuring device, evaluating the current flow rate as a function of the current position of the movable member and of a pressure value which is representative of a difference between a second pressure of the fluid downstream of the valve, evaluated via an impedance of the downstream transducer, and a first pressure of the fluid upstream of the valve, evaluated via an impedance of the upstream transducer.

Abstract: An ultrasonic fluid meter comprises a conduit (4) in which a fluid can flow, an ultrasonic measurement device (6) for evaluating a current flow rate of the fluid, a valve (12) comprising a moving member (14) for controlling the current flow rate of the fluid, a position sensor (15) for measuring a current position of the moving member (14), a first pressure sensor (16) for measuring a first pressure of the fluid upstream of the valve (12), and a second pressure sensor (17) for measuring a second pressure of the fluid downstream of the valve (12), and a processing circuit (5) for evaluating the current flow rate as a function of the current position of the moving member (14) and of a pressure value representative of a difference between the second pressure and the first pressure, if the current flow rate cannot be measured by the ultrasonic measurement device (6).

Abstract: An ultrasonic fluid meter comprises a conduit (4) in which a fluid can flow, an ultrasonic measurement device (6) for evaluating a current flow rate of the fluid, a valve (12) comprising a moving member (14) for controlling the current flow rate of the fluid, a position sensor (15) for measuring a current position of the moving member (14), a first pressure sensor (16) for measuring a first pressure of the fluid upstream of the valve (12), and a second pressure sensor (17) for measuring a second. pressure of the fluid downstream of the valve (12), and a processing circuit (5) for evaluating the current flow rate as a function of the current position of the moving member (14) and of a pressure value representative of a difference between the second pressure and the first pressure, if the current flow rate cannot be measured by the ultrasonic measurement device (6).

Abstract: An ultrasonic fluid meter comprising a conduit in which a fluid can flow, an ultrasonic measuring device comprising an upstream transducer and a downstream transducer for evaluating a current flow rate, a valve comprising a movable member for controlling the current flow rate, a position sensor for measuring a current position of the movable member, a processing circuit for, if the current position of the movable member is such that the current flow rate cannot be measured by the ultrasonic measuring device, evaluating the current flow rate as a function of the current position of the movable member and of a pressure value which is representative of a difference between a second pressure of the fluid downstream of the valve, evaluated via an impedance of the downstream transducer, and a first pressure of the fluid upstream of the valve, evaluated via an impedance of the upstream transducer.

Abstract: A method for monitoring a solenoid valve, including regularly repeated monitoring stages and each comprising the steps of driving the electric motor of the solenoid valve to modify the current position of it movable member; evaluating a monitoring value representative of an inrush current of the electric motor during the driving step; comparing the monitoring value with at least one first predetermined threshold and, if the monitoring value is greater than said first predetermined threshold, implementing at least one corrective action to avoid a blockage of the solenoid valve.