# US 9,438,047 B2 · Method for monitoring the state of charge, or remaining capacity, of a disposable or rechargeable battery

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- Number: US 9,438,047 B2
- Document ID: US9438047B2
- Status: Granted
- Kind: B2
- Application number: 12/452,076
- Filed: 2009-08-03
- Published: 2010-10-14
- Granted: 2016-09-06
- Earliest claimed: 2008-08-19
- Assignees: Endress + Hauser Process Solutions AG
- Applicants: Werner Thoren; Christian Seiler; Stefan Probst; Ingo Laible
- Inventors: Werner Thoren; Christian Seiler; Stefan Probst; Ingo Laible
- Web page: https://patentgrep.com/patent/US9438047B2

## CPC

- H02J 7/44: between battery management systems and power sources
- H01M 10/482: {for several batteries or cells simultaneously or sequentially}
- H02J 7/485: {with provisions for charging different types of batteries}
- G01R 31/382: Arrangements for monitoring battery or accumulator variables, e.g. SoC
- Y02E 60/10: Energy storage using batteries
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A method for monitoring charge level or remaining capacity of a battery pack, a disposable battery or a rechargeable battery, which is used to supply energy for an automation technology, field device having a data storage unit associated with the battery pack, disposable battery or rechargeable battery. Specific information about the battery pack, disposable battery or rechargeable battery is stored in the data storage unit and process-specific and operation-specific information about energy consumption is written to the data storage unit. In the case of the battery pack, disposable battery or rechargeable battery being used in a second automation technology field device, remaining service life of the battery pack, the disposable battery or the rechargeable battery is calculated and output on the basis of the process- and operation-specific information.

## Claims

### Claim 1

A method for monitoring the charge level or remaining capacity of a battery pack, a disposable battery or a rechargeable battery, which is used to supply energy for an automation technology field device wherein a data storage unit and a microprocessor associated with the battery pack, the disposable battery or the rechargeable battery, comprising the steps of:
storing specific information about the battery pack, the disposable battery or the rechargeable battery in the data storage unit;
writing process-specific and operation-specific information about energy consumption of a field device associated with the battery pack, disposable battery or rechargeable battery to the data storage unit, at one of: specific intervals of time and specific events; and
in the case of the battery pack, the disposable battery or the rechargeable battery being separated from the associated field device and used in another field device, the remaining service life of the battery pack, the disposable battery or the rechargeable battery is newly calculated and output on the basis of a sum formation of the process- and operation-specific information stored in said data storage by the microprocessor.

### Claim 2 (depends on 1)

The method as claimed in claim 1, wherein:
storage of the process- and/or operation-specific information is manually initiated.

### Claim 3 (depends on 1)

The method as claimed in claim 1, wherein:
the storage of the process- and/or operation-specific information occurs automatically.

### Claim 4 (depends on 1)

The method as claimed in claim 1, wherein:
the stored information is taken into consideration for diagnosis of the battery pack, the disposable battery or the rechargeable battery.

### Claim 5

An apparatus for monitoring the charge level or remaining capacity of a battery pack, a disposable battery or a rechargeable battery, which is used to supply energy for an automation technology, field device, comprising
a data storage unit for the field device; wherein:
said data storage unit, is associated with the battery pack, the disposable battery, or the rechargeable battery respectively;
specific information about the battery pack, disposable battery or rechargeable battery is stored in said data storage unit;
a microprocessor connected to said data storage unit, whereby wherein the microprocessor is adapted to write; writes process-specific and operation-specific information about energy consumption of the field device associated with the battery pack, disposable battery or rechargeable battery to said data storage unit at one of: specific intervals of time and specific events; and
in the case of the battery pack; disposable battery or rechargeable battery being used in a second automation technology field device, the remaining service life of the battery pack, the disposable battery or the rechargeable battery is calculated and output on the basis of a sum formation of the process- and operation-specific information stored in said data storage by the microprocessor.

### Claim 6 (depends on 5)

The apparatus as claimed in claim 5, wherein:
the specific information concerning the battery pack, the disposable battery or the rechargeable battery involves information that allows the battery pack, the disposable battery or the rechargeable battery to be uniquely identified.

### Claim 7 (depends on 5)

The apparatus as claimed in claim 5, wherein:
said specific event involves a process with high energy consumption, e.g. configuring or parametering the field device.

### Claim 8 (depends on 5)

The apparatus as claimed in claim 5, wherein:
the battery pack, the disposable battery or the rechargeable battery is integrated into the field device or into an adapter on the field device for radio transmission of data between the field device and a superordinated control unit.