Method to Detect Tampering of Data
First Claim
1. A method of detecting tampering of data, the method comprising:
- constant acquiring of measurement raw data in a sensor unit;
processing the measurement raw data of a defined time interval in a metrology unit, thereby obtaining first measurement results;
storing and/or transmitting the first measurement results to an authority at defined time instances via a communication channel;
storing and/or transmitting a defined fraction of the measurement raw data to the authority in a random manner via the communication channel;
processing the measurement raw data of the defined time interval at the authority, thereby obtaining second measurement results; and
comparing the first measurement results and second measurement results of a time interval.
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Accused Products
Abstract
A method to detect tampering includes constant acquiring of measurement raw data in a sensor unit; processing of measurement raw data of a defined time interval in a metrology unit, obtaining first measurement results; at least one of storing of the first measurement results and transmitting of the first measurement results to an authority at defined time instances via a communication channel; at least one of storing of a defined fraction of measurement raw data and transmitting of a defined fraction of measurement raw data to the authority in a random manner via the communication channel; processing of the measurement raw data of the defined time interval at the authority, obtaining second measurement results; and comparing the first and second measurement results of a time interval.
64 Citations
25 Claims
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1. A method of detecting tampering of data, the method comprising:
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constant acquiring of measurement raw data in a sensor unit; processing the measurement raw data of a defined time interval in a metrology unit, thereby obtaining first measurement results; storing and/or transmitting the first measurement results to an authority at defined time instances via a communication channel; storing and/or transmitting a defined fraction of the measurement raw data to the authority in a random manner via the communication channel; processing the measurement raw data of the defined time interval at the authority, thereby obtaining second measurement results; and comparing the first measurement results and second measurement results of a time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A smart meter comprising:
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a sensor unit, configured to measure one or more parameters of interest and provide measurement raw data that represents the parameters of interest; and a metrology unit, configured to receive the measurement raw data from the sensor unit, to store and/or transmit a defined fraction of measurement raw data of a defined time interval in a random manner via a communication channel, to process the measurement raw data of the defined time interval to obtain first measurement results, and to store and/or transmit the first measurement results via the communication channel; wherein the smart meter is configured to be coupled to an authority via the communication channel, the authority being configured to receive the first measurement results, receive and process the defined fraction of measurement raw data of the defined time interval thereby obtaining second measurement results, and to compare the first and second measurement results of a time interval.
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19. A system to detect tampering of data, the system comprising:
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a smart meter, which comprises a sensor unit, configured to measure one or more parameters of interest and provide measurement raw data, representing the parameters of interest; and a metrology unit, configured to receive the measurement raw data from the sensor unit, to store and/or transmit a defined fraction of measurement raw data of a defined time interval in a random manner via a communication channel, to process measurement raw data of the defined time interval thereby obtaining first measurement results, and to store and/or transmit the first measurement results via the communication channel; and an authority coupled to the smart meter via the communication channel, the authority configured to receive and process the defined fraction of measurement raw data of the defined time interval thereby obtaining second measurement results, to receive the first measurement results, and to compare the first and second measurement results of a time interval. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification