# US 10,120,036 B2 · Autonomous electronic module

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- Number: US 10,120,036 B2
- Document ID: US10120036B2
- Status: Granted
- Kind: B2
- Application number: 15/116,584
- Filed: 2015-02-05
- Published: 2016-12-01
- Granted: 2018-11-06
- Earliest claimed: 2014-02-05
- Assignees: Diehl Metering GmbH
- Applicants: DIEHL METERING SAS (Societe par Actions Simplifiee)
- Inventors: Bernard Dockwiller; Guy Bach
- Web page: https://patentgrep.com/patent/US10120036B2

## CPC

- G01R 31/371: with remote indication, e.g. on external chargers
- G01R 19/16542: {for batteries (charge condition monitoring in G01R31/36)}
- G01R 31/3647: {for determining the ability of a battery to perform a critical function, e.g. cranking}
- G01R 31/374: with means for correcting the measurement for temperature or ageing
- G01R 31/38: {Primary cells, i.e. not rechargeable}
- H01M 6/5044: {Cells or batteries structurally combined with cell condition indicating means}
- H01M 10/4285: {Testing apparatus}
- H01M 10/443: {in response to temperature}
- Y02E 60/10: Energy storage using batteries
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The autonomous electronic module (1) includes: —a cell (2) providing a supply current (Icell) to the electronic module, —a resistor (2) connected in series with the cell, the resistor exhibiting terminals, —elements for measuring a voltage (20) across the terminals of the resistor and elements for evaluating the charge remaining (10, 11, 12), arranged so as to process a measurement of the voltage in order to calculate the charge remaining of the cell (2).

## Claims

### Claim 1

A meter (501) that evaluates a consumption of fluid or thermal energy of an installation, the meter comprising:
an autonomous electronic module (1), that includes
an electronic circuit (3),
a cell (2) providing a supply current (Icell) to the electronic circuit (3),
a resistor (6) connected in series to the cell (2), said resistor (6) including terminals for connection thereto,
voltage measuring means (20) that measures a voltage across the terminals of the resistor (6) as an indication of the supply current (Icell),
a temperature sensor (21) that provides a measurement of the temperature (Tcell) of the cell (2), and
means of evaluating a remaining charge (10, 11, 12), configured to process the supply current (Icell) and the measured the temperature (Tcell) of the cell (2) to calculate the remaining charge of the cell (2),
the means of evaluating the remaining charge being part of the electronic circuit (3), and including a computer (10) with at least one memory (11,12) connected thereto, the at least one memory (11,12) having stored therein predetermined value thresholds or predetermined value profiles;
and means of measurement (40) connected to the autonomous electronic module that measures a flow of fluid or thermal energy provided at the installation,
wherein said computer (10) is configured to evaluate the consumption of the fluid or thermal energy of the installation, and
wherein said computer (10) is connected to a warning device (30) that receives an operating signal from the computer when all data relating to the measurement of the supply current (Icell) as a function of time does not fall between the predetermined value profiles and/or when the measurement of the supply current falls outside one of said predetermined value thresholds or predetermined value profiles stored in said at least one memory (11, 12).

### Claim 2 (depends on 1)

The meter according to claim 1, wherein the voltage measurement means (20) comprise a differential amplifier (201).

### Claim 3 (depends on 1)

The meter according to claim 1, wherein the at least one memory comprises a non-volatile memory (12), and said computer records in the non-volatile memory all the data relating to the measurement of the supply current (Icell) as a function of time.

### Claim 4 (depends on 1)

The meter according to claim 1, wherein the computer uses the supply current (Icell) obtained by measuring the voltage across the terminals of the resistor and from the measurement (Tcell) of the temperature of the cell to calculate the remaining charge.

### Claim 5 (depends on 4)

The meter according to claim 4, wherein the at least one memory comprises a non-volatile memory (12), and said computer records in the non-volatile memory all data relating to the measurement of the temperature (Tcell) as a function of time.

### Claim 6 (depends on 2)

The meter according to claim 2, wherein the at least one memory comprises a non-volatile memory (12), and said computer records in the non-volatile memory all the data relating to the measurement of the supply current (Icell) as a function of time.

### Claim 7 (depends on 2)

The meter according to claim 2, wherein the computer uses the supply current (Icell) obtained by measuring the voltage across the terminals of the resistor and from the measurement (Tcell) of the temperature of the cell to calculate the remaining charge.

### Claim 8 (depends on 3)

The meter according to claim 3, wherein the computer uses the supply current (Icell) obtained by measuring the voltage across the terminals of the resistor and from the measurement (Tcell) of the temperature of the cell to calculate the remaining charge.

### Claim 9 (depends on 7)

The meter according to claim 7, wherein the at least one memory comprises a non-volatile memory (12), and said computer records in the non-volatile memory all data relating to the measurement of the temperature (Tcell) as a function of time.

### Claim 10 (depends on 8)

The meter according to claim 8, wherein the at least one memory comprises a non-volatile memory (12), and said computer records in the non-volatile memory all data relating to the measurement of the temperature (Tcell) as a function of time.