US 12,216,448 B2
Dependability number
Zhensheng Guo, Forstern (DE); Christof Kaukewitsch, Munich (DE); and Marc Zeller, Munich (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Appl. No. 17/414,349
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Nov. 22, 2019, PCT No. PCT/EP2019/082245
§ 371(c)(1), (2) Date Jun. 16, 2021,
PCT Pub. No. WO2020/126306, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18214703 (EP), filed on Dec. 20, 2018.
Prior Publication US 2022/0043419 A1, Feb. 10, 2022
Int. Cl. G06Q 10/0637 (2023.01); G05B 19/406 (2006.01)
CPC G05B 19/406 (2013.01) [G06Q 10/0637 (2013.01); G05B 2219/40361 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A computer-implemented method for providing an optimal system configuration out of a plurality of candidate system configurations, the method comprising:
performing a component fault tree analysis with a corresponding Reliability, Availability, Maintainability and Safety (RAMS) analysis for each of a plurality of candidate systems configurations j;
receiving data indicating the plurality of candidate system configurations j, wherein the received data includes a plurality of actual values associated with a plurality of dependable properties i obtained by the performing the component fault tree analysis with the corresponding RAMS analysis for each of the plurality of candidate systems configurations j;
determining expected or reference values for each of the plurality of parameters;
comparing the plurality of actual values with the expected or reference values for each of the plurality of dependable properties i for each of the plurality of candidate systems j;
determining at least one quantitative dependability metric value for each of the plurality of candidate system configurations j,
wherein the at least one quantitative dependability metric value for each of the plurality of candidate system configurations j is based on
a) determining a dependability property fulfilment value Xij for each of the plurality of dependability properties i for each individual candidate system configuration j, wherein the dependability property fulfilment value Xij depends from the comparing the plurality of actual values with the expected or reference values for each of the plurality of dependable properties i for each of the plurality of candidate systems j; and further based on
b) weighing the dependability property fulfilment value Xij for each of the plurality of dependability properties i using a dependability property weighting factor Ki for each of the list of dependability properties i for all of the plurality of candidate system configurations j;
determining an optimal system configuration out of the plurality of candidate system configurations j based on a quantitative comparison between the at least one quantitative dependability metric value for each of the plurality of candidate system configurations j;
generating an output signal based on the determined optimal system configuration;
transmitting the output signal to a producing machine; and
controlling the producing machine, by the output signal, to produce a system having the determined optimal system configuration.