Method for the secure operation of an electronic consumption data module and consumption data module

Patent metadata

Field	Value
Publication number	US-10900807-B2
Application number	US-201916255906-A
Country	US
Kind code	B2
Filing date	Jan 24, 2019
Priority date	Feb 3, 2018
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A method for operating an electronic consumption data module. Consumption data are transmitted via a communication system to a receiver, and different keys are provided for different software authorizations. Command authorizations are defined as software authorizations in the consumption data module. A consumption data module has a memory, a control and/or regulating unit, and a communication device for the consumption data transmission. Different keys are provided for different software authorizations, and the command authorizations are defined as software authorizations in the consumption data module. The consumption data module is operable by the method.

First claim

The invention claimed is:

1. A method for operating an electronic consumption data meter, configured as an ultra sonic flow meter, which comprises the steps of:
transmitting consumption data via a communication system to a receiver;
providing different keys for different software authorizations of the electronic consumption data meter, wherein command authorizations are defined as the software authorizations in the electronic consumption data meter;
protecting metrological characteristics of the electronic consumption data meter by a software authorization, which have write permissions, and contain the following characteristics individually or in combination: gauging, calibration and/or adjustment, the write permissions of the software authorization allowing changes to a calibration of the electronic consumption data meter: and
protecting the metrological characteristics disposed in a metrological metering unit by a hardware encapsulation so that the calibration of the electronic consumption data module is accessed only via the software authorization.

2. The method according to claim 1 , which further comprises:
selecting the communication system from the group consisting of a radio communication system, a wired communication system and an optical communication system; and
using at least one key to secure a radio transmission.

3. The method according to claim 1 , which further comprises using at least one key to secure configuration data.

4. The method according to claim 1 , wherein at least one key for software access authorization is notified selectively to an information recipient.

5. The method according to claim 1 , wherein a command transmitted to the electronic consumption data meter without a key providing authorization for the command is not executable by the electronic consumption data meter, and the electronic consumption data meter generates an error signal in an event of an unauthorized command.

6. The method according to claim 1 , which further comprises recording and storing an unauthorized access to metrological data.

7. The method according to claim 1 , wherein the electronic consumption data meter has an individual identifier, and at least one key from a group of keys is valid for software authorization in a case of an individual identifier of the electronic consumption data meter.

8. The method according to claim 1 , wherein validities of the keys for the software authorizations are time-limited.

9. The method according to claim 1 , wherein a scope of the software authorization for a key is individually configurable.

10. The method according to claim 1 , wherein the electronic consumption data meter is a consumption data radio meter.

11. A consumption data meter, configured as an ultra sonic flow meter, comprising:
a memory;
a control and/or regulating processor;
a metrological meter for recording consumption data;
a communication system fora consumption data transmission, and different keys are provided for different software authorizations;
ultrasonic transducers connected to said metrological meter;
command authorizations are defined as the software authorizations in the consumption data meter;
said metrological meter being protected by a software authorization, containing write permissions. wherein it is provided that metrological characteristics of the consumption data meter are stored in said metrological meter and contain at least one of the following characteristics: gauging, calibration and/or adjustment, the write permissions of the software authorization allowing changes to a calibration of the consumption data meter and
said metrological meter being protected by a hardware encapsulation so that the calibration of the consumption data module is accessed only via the software authorization.

12. The consumption data meter according to claim 11 , further comprising a battery.

13. The consumption data meter according to claim 11 , further comprising a module for managing the keys for the software authorizations, said module configured as a hardware and/or software component.

14. The consumption data meter according to claim 11 , wherein said communication system has radio communication means, a wired communication means and/or an optical communication means, and at least one key is used to secure a radio transmission.

15. The consumption data meter according to claims 11 , wherein at least one of said keys is used to secure configuration data.

16. The consumption data meter according to claim 11 , wherein at least one of said keys for a software access authorization is notified selectively to an information recipient.

17. The consumption data meter according to claim 11 , further comprising an individual identifier.

18. The consumption data meter according to claim 11 , wherein validities of the keys for the software authorizations are time-limited.

19. The consumption data meter according to claim 11 , wherein a scope of a software authorization for a key is individually configurable.

20. The consumption data meter according to claim 11 , wherein said memory has a non-erasable memory.

21. The consumption data meter according to claim 11 , wherein the consumption data meter is a consumption data radio meter.

Assignees

• Diehl Metering Systems Gmbh

Inventors

• Blank Thomas
• Joppich-Dohlus Petra
• Schmitz Stefan
• Schmidt Achim
• Jambor Christian

Classifications

• H04L63/068 Primary

  using time-dependent keys, e.g. periodically changing keys (cryptographic mechanisms or cryptographic arrangements for controlling usage of secret information H04L9/088) · CPC title

• H04Q2209/40

  using a wireless architecture · CPC title

• G08C17/02

  using a radio link · CPC title

• H04Q9/00

  Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom · CPC title

• H04Q2209/60

  for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter · CPC title