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