Patent ID: 11868197
Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method for detecting anomalies implemented on a microcontroller having a memory, the method comprising:
receiving, by the microcontroller, data sets from a sensor, wherein for each data set received, the method further comprises:
storing the data set in a memory of the microcontroller,
calculating a signature of the data set,
selecting a category of maximum occurrence, each category comprising a signature and an occurrence,
calculating a similarity measurement between the signature of the data and a signature of the category of maximum occurrence, and
deleting the data set from the memory in response to similarity measurement meeting a condition of normality, and
in response to the similarity measurement failing to meet the condition of normality and in response to having categories remaining in memory without a calculated similarity measurement with the signature of the data set:
selecting a category having an occurrence equal to or immediately less than the occurrence of the category of which the signature has been used to calculate a preceding similarity measurement,
calculating the similarity measurement between the signature of the data set and the signature of the selected category, and
deleting the data set from the memory in response to the similarity measurement calculated meeting the condition of normality.