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1. 发明申请

WO2023033804A1 HARDWARE-BASED SENSOR ANALYSIS 审中-公开
公开(公告)号：WO2023033804A1
公开(公告)日：2023-03-09
申请号：PCT/US2021/048430
申请日：2021-08-31
申请人： SIEMENS INDUSTRY SOFTWARE INC.
发明人： PANESAR, Gajinder , HLOND, Marcin
IPC分类号： G08C25/00 , H04Q9/00 , G06F11/07
摘要： A method of monitoring messages from a sensor using an integrated circuit is provided, wherein the messages include data measured by that sensor. The method includes: reading a first message from interconnect circuitry of the integrated circuit, the interconnect circuitry connecting the sensor to one or more core devices configured to process the message; calculating a first hash value for the first message; comparing the first hash value to one or more prior hash values stored in a hash store, each prior hash value corresponding to a message that was read from the interconnect circuitry prior to the first message; and performing a corrective action if the difference between the first hash value and at least one of the prior hash values stored in the hash store is above a predetermined threshold.

2. 发明申请

WO2021243034A1 HARDWARE-BASED SENSOR ANALYSIS 审中-公开
公开(公告)号：WO2021243034A1
公开(公告)日：2021-12-02
申请号：PCT/US2021/034542
申请日：2021-05-27
申请人： SIEMENS INDUSTRY SOFTWARE INC.
发明人： HLOND, Marcin , PANESAR, Gajinder
IPC分类号： G08C25/00 , H04Q9/00 , G06F11/07
摘要： A method of monitoring messages from a sensor using an integrated circuit, the messages comprising data measured by that sensor, the method comprising: reading a first message from interconnect circuitry of the integrated circuit, the interconnect circuitry connecting the sensor to one or more core devices configured to process the message; calculating a first hash value for the first message; comparing the first hash value to one or more prior hash values stored in a hash store, each prior hash value corresponding to a message that was read from the interconnect circuitry prior to the first message; and performing a corrective action if the difference between the first hash value and at least one of the prior hash values stored in the hash store is below a predetermined threshold.

3. 发明申请

WO2021110530A1 IDENTIFYING CAUSES OF ANOMALIES OBSERVED IN AN INTEGRATED CIRCUIT CHIP 审中-公开
公开(公告)号：WO2021110530A1
公开(公告)日：2021-06-10
申请号：PCT/EP2020/083479
申请日：2020-11-26
申请人： SIEMENS INDUSTRY SOFTWARE INC.
发明人： HLOND, Marcin , PANESAR, Gajinder
IPC分类号： G06F11/00 , G06F17/18
摘要： A method of identifying a cause of an anomalous feature measured from system circuitry on an integrated circuit (IC) chip, the IC chip comprising the system circuitry and monitoring circuitry for monitoring the system circuitry by measuring features of the system circuitry in each window of a series of windows, the method comprising: (i) from a set of windows prior to the anomalous window comprising the anomalous feature, identifying a candidate window set in which to search for the cause of the anomalous feature; (ii) for each of the measured features of the system circuitry: (a) calculating a first feature probability distribution of that measured feature for the candidate window set; (b) calculating a second feature probability distribution of that measured feature for window(s) not in the candidate window set; (c) comparing the first and second feature probability distributions; and (d) identifying that measured feature in the timeframe of the candidate window set as a cause of the anomalous feature if the first and second feature probability distributions differ by more than a threshold value; (iii) iterating steps (i) and (ii) for further candidate window sets from the set of windows prior to the anomalous window; and (iv) outputting a signal indicating those measured feature(s) of step (ii)(d) identified as a cause of the anomalous feature.

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