Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
  • G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
  • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
  • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
  • G01R31/3644—Constructional arrangements
  • G01R31/3647—Constructional arrangements for determining the ability of a battery to perform a critical function, e.g. cranking
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
  • G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
  • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
  • G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
  • G01R31/38—Primary cells, i.e. not rechargeable
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/4285—Testing apparatus
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/44—Methods for charging or discharging
  • H01M10/443—Methods for charging or discharging in response to temperature
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M6/00—Primary cells; Manufacture thereof
  • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
  • H01M6/5044—Cells or batteries structurally combined with cell condition indicating means
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the invention relates to an autonomous electronic module.
• This invention can be applied regardless of the type of autonomous electronic module.
• the invention finds particular application in the field of fluid meters and thermal energy.
• the invention also has a particular application in the field of autonomous radio communication modules.
• the so-called autonomous electronic modules are characterized by the absence of access to electricity via an electrical network, these modules being conventionally powered by one or more batteries.
• these modules being conventionally powered by one or more batteries.
• the batteries feeding these electronic modules are not replaceable.
• the life of a battery depends essentially on its temperature and the current it delivers.
• Existing techniques for estimating the operating conditions of the electronic modules consist in defining a temperature profile and an operating profile of the apparatus in order to define the profile of the current consumed by the electronic module. It is therefore an estimate based on purely theoretical electronic module operating forecasts.
• an autonomous electronic module comprising:
• a shorter battery life than expected has a negative impact on installation costs; it may be a loss of operation, an unplanned maintenance operation or even a doubt about the reliability of the means implementing the exploitation of the resources of the installation and in which the measurement, comprising such an autonomous electronic module, evaluates the resource consumption.
• the invention aims to overcome the disadvantages of the prior art by providing, at lower cost, an improved autonomous electronic module.
• a target here is the self-monitoring of the supply current by the electronic module.
• Another objective here is to monitor the power consumption of the electronic module to detect failures.
• Another objective is to observe the evolution of the long-term current consumption in order to detect failures of the electronic module.
• Another objective is to report a non-compliant power consumption.
• Another objective is to keep data relating to the current consumption history by the electronic module while the battery supplying the electronic module is no longer in an operating state. It is also about estimating the state charging the battery taking into account the temperature of the enclosure in which the battery is disposed and the current consumption seen by the battery.
• the autonomous electronic module comprises means for measuring a voltage across the resistor and evaluation means of the remaining autonomy arranged so as to process the measurement of said voltage to calculate the remaining autonomy .
• the arrangement of a resistor connected in series with the battery makes it possible to evaluate, via the means for measuring the voltage, the electrical potential difference between each of the terminals of the resistor. It is then possible via the evaluation means of the remaining battery life, to calculate the supply current supplied by the battery and to deduce the remaining battery life.
• the means for measuring the voltage across the resistor comprise a differential amplifier.
• This differential amplifier makes it possible, by measuring the analog voltage across the resistor, to output an analog voltage proportional to the current flowing through the resistor, this latter voltage being referenced with respect to the zero of the computer.
• the differential amplifier is a component having a reduced cost and simple to integrate on such an autonomous electronic module.
• the means for evaluating the remaining autonomy are integrated in a computer, the computer being arranged so as to process the voltage representative of the current power supply provided by the battery, a non-volatile memory comprising predetermined value thresholds being associated with the computer, the computer being connected to a first alarm arranged to receive a first operating signal when the voltage representative of the supply current is not between the first thresholds of predetermined values.
• This arrangement makes it possible, starting from the analog voltage presented at the input, to evaluate means by means of the measurement of the voltage to compare the signal representative of the supply current with first thresholds of predetermined values, which makes it possible to detect a anomaly of the supply current supplied by the battery. A subject can then be notified using the first alarm.
• the non-volatile memory comprises predetermined value profiles
• the computer is associated with a non-volatile memory comprising all the data relating to the measurement of the supply current over time.
• This combination makes it possible to compare the consumption history of the autonomous electronic module with the predetermined value profiles in order to identify a possible operating anomaly of the autonomous electronic module.
• the computer is connected to a second alarm arranged to receive a second operating signal when the set of data relating to the measurement of the current during the time is not included between the predetermined value profiles.
• the autonomous electronic module comprises a temperature sensor arranged so as to provide a measurement of the temperature of the battery and in that the computer is arranged so as to calculate the remaining battery life from measuring the voltage across the resistor and measuring the temperature of the battery.
• This arrangement allows in particular to associate the voltage measurement across the resistor (which is deduced from the supply current supplied by the battery) to the measurement of the battery temperature. This provision therefore makes it possible to take into account the operating conditions in which the autonomous electronic module evolves. As such, it is understandable therefore that an electronic module equipped with such a sensor can correct the error and provide a more reliable estimate of the remaining battery life whatever the battery temperature.
• the autonomous electronic module comprises a non-volatile memory comprising all the data relating to the measurement of the temperature over time.
• a meter is also provided to evaluate the consumption of fluid or thermal energy of an installation comprising: an autonomous electronic module according to one of the aforementioned embodiments,
• measurement means connected to the autonomous electronic module and arranged so as to measure a flow rate of fluid or heat energy supplied to the installation.
• the electronic module is particularly suitable for a meter of water, gas, or thermal energy.
• a common calculator comprises the means for evaluating the remaining autonomy and means for evaluating a consumption of fluid or thermal energy of the installation.
• the integration of the means of evaluation of the remaining autonomy and means for evaluating a fluid consumption makes it possible to offer a calculator comprising two functions on the same component. This integration makes it possible to reduce the manufacturing costs of the meter and to reduce the number of parts and the bulk of the components forming the meter.
• Figure 1 is a schematic view of an embodiment of the invention. Description of embodiments of the invention
• an autonomous electronic module such as a meter for evaluating the consumption of fluid or thermal energy of an installation, which comprises a battery 2 supplying a supply current (I battery ) to an electronic circuit 3 of the module 1, a resistor 6 connected in series with the battery 2, said resistor 6 having terminals, means for measuring a voltage across the resistor and evaluation means 10, 11, 12 of the remaining autonomy arranged to process the measurement of said voltage to calculate the remaining battery life.
• the means 20 for measuring the voltage across the resistor 6 is arranged so as to communicate a voltage relative to a measurement of the supply current (I battery ) supplied by the battery 2, the resistor 6 being connected between the power supply autonomous electronic module and battery.
• the means for evaluating the remaining battery life 10, 11, 12 process the data relating to the measurement of the supply current (I battery ) supplied by the battery 2, namely the voltage across the resistor 6. , to deduce the remaining battery life.
• the means for evaluating the remaining autonomy 10, 11, 12 comprise a computer 10. This computer 10 is arranged so as to process the voltage representative of the supply current (I battery ) supplied by the battery.
• a volatile memory 11 is associated with the computer 10. This volatile memory 11 is a memory in which the data provided by the voltage measuring means 20 across the resistor 6 are set to be processed quickly by the computer 10. This data is lost as soon as the battery 2 is no longer in an operating state.
• the remaining battery evaluation means comprise a non-volatile memory 12 in order to record the evolution of the current consumption during the operating time of the autonomous electronic module 1 and thus to preserve the relative data. the current consumption history by the autonomous electronic module 1 while the battery 2 supplying the autonomous electronic module 1 is no longer in an operating state.
• the computer 10 is arranged to process the voltage representative of the supply current I provided by the battery cell 2 based on data relating to the measurement of the supply current I cell being deduced from the voltage measurement to terminals of the resistor 6.
• the computer 10 is connected to a first alarm arranged to receive a first operating signal from the computer 10, when the signal representative of the supply current I Battery n is not included between thresholds of predetermined values contained in the volatile memory 11 or in the non-volatile memory 12.
• the volatile memory 11 or the non-volatile memory 12 comprises predetermined value profiles.
• the computer 10 implements a comparison of all the data relating to the measurement of the power supply current I Pile over time with the data profiles. predetermined values stored in one of the volatile memories 11 and nonvolatile 12.
• the computer 10 may be connected to a second alarm arranged to receive a second operating signal of the calculator 10 when the set of data relating to the measurement of the Feed current I Battery in the course of time is not included between the predetermined value profiles.
• the first alarm and the second alarm can be defined by a single alarm.
• the first and second alarms comprise, for example, radio frequency communication means.
• Resistor 6 is a low value resistor. It has a first terminal connected to the battery and a second terminal connected to the power supply, that is to say the + terminal, of the electronic circuit 3 of the autonomous electronic module 1. The first and second terminals respectively have a first potential. electrical 202 and a second electrical potential 203.
• a differential amplifier 201 is arranged to calculate an electrical potential difference, the differential amplifier being connected in parallel with the first and second terminals of said resistor 2.
• the differential amplifier 201 provided at the output 206 a voltage value thus measured at the computer 10.
• the differential amplifier is itself fed 204,205 by the battery 2 in parallel with the electronic circuit 3 of the autonomous electronic module 1.
• the autonomous electronic module 1 comprises a temperature sensor 21 arranged to provide a measurement T battery of the temperature of the battery 2.
• the computer 10 is then arranged to calculate the remaining battery life from the signal representative of the supply current I battery and measurement of the temperature T battery of the battery 2.
• the temperature sensor 21 thus makes it possible to record the temperature T stack connected to the battery 2.
• the temperature sensor 21 comprises a sensitive element associated with an enclosure into which the battery is inserted.
• the temperature T battery of the battery is then an ambient temperature of the enclosure into which the battery is inserted.
• the computer 10 is then arranged so as to calculate the remaining battery life from the signal representative of the supply current I battery and measurement of the temperature T battery of the battery 2.
• the non-volatile memory 12 can also understand all the data relating to the measurement of the temperature T battery of the battery 2 over time, in addition to all the data relating to the measurement of the supply current I battery over time.
• the non-volatile memory 12 is useful in that it makes it possible, for example, to know the number of hours of operation during which the autonomous electronic module 1 has consumed a great deal of current and how much time of overheating has lasted the cell 2, etc ..
• a meter is also targeted for evaluating the consumption of fluid or thermal energy of an installation comprising an autonomous electronic module as defined above, as well as measurement means connected to the autonomous electronic module. and arranged to measure a flow of fluid or heat energy supplied to the installation.
• the calculator 10 can be in order to evaluate the remaining autonomy, on the one hand, and, on the other hand, to evaluate a consumption of fluid or thermal energy of the installation.
• the meter is a meter of water, gas, or thermal energy.

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• General Physics & Mathematics (AREA)
• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Power Engineering (AREA)
• Secondary Cells (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Manipulator (AREA)
• Arrangements For Transmission Of Measured Signals (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (7)

Family Cites Families (12)

• 2014
  • 2014-02-05 FR FR1450870A patent/FR3017249A1/fr active Pending
• 2015
  • 2015-02-05 MX MX2016009929A patent/MX359583B/es active IP Right Grant
  • 2015-02-05 US US15/116,584 patent/US10120036B2/en not_active Expired - Fee Related
  • 2015-02-05 EP EP15707701.7A patent/EP3102954A1/de not_active Withdrawn
  • 2015-02-05 CN CN201580007629.1A patent/CN106170707B/zh not_active Expired - Fee Related
  • 2015-02-05 WO PCT/FR2015/050280 patent/WO2015118270A1/fr active Application Filing
• 2016
  • 2016-08-31 MA MA39318A patent/MA39318A1/fr unknown

Non-Patent Citations (2)

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