PROCESS FOR PROTECTING STORED OPERATING DATA OF MACHINERY OR SIMILAR EQUIPMENT
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United States of America Patent
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Issued Date -
Aug 13, 2009
app pub date -
Feb 5, 2009
filing date -
Feb 7, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A process is provided for protecting stored operating data of machinery or similar equipment. The operating data are stored by means of a computer system belonging to a control system or by means of a similar computer system belonging to the equipment and wherein the operating data are acquired continuously in the form of data sets and stored in a data storage medium for later analysis. A security code is generated with the storage of a data set from the currently stored operating data on the basis of parameters (k, l, m, n) of a preset determination rule and stored in the computer system. A comparison code is determined in at preset time intervals on the basis of the same determination rule from the operating data currently recorded in the data storage medium for verifying the operating data currently present in the data storage medium. The comparison code is compared with the security code generated originally, and a warning signal is generated or a protective action is triggered in a fourth step in case of a deviation between the comparison code and the security code generated originally.
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