Method to assure integrity of integrated certified and non-certified sensors

A system for applying a method to assure integrity of integrated certified and non-certified sensors or systems providing measurements, the system comprising:

• a certified partition comprising:
• a certified main solution filter operative to process a set of certified measurements;
• one or more certified sub-solution filters, wherein each certified sub-solution filter is operative to process all but one measurement from the set of certified measurements;
• and
• if fault exclusion is required, one or more sets of certified sub-sub-solution filters, wherein each certified sub-sub-solution filter is operative to process all but two measurements from the set of certified measurements;
• and
• a non-certified partition comprising:
• a non-certified main solution filter operative to process a set of non-certified measurements and the set of certified measurements;
• if fault detection is required for the non-certified partition, one or more non-certified sub-solution filters, wherein each non-certified sub-solution filter is operative to process all but one measurement from the sets of non-certified and certified measurements;
• and
• if fault exclusion is required for the non-certified partition, one or more sets of non-certified sub-sub-solution filters, wherein each non-certified sub-sub-solution filter is operative to process all but two measurements from the sets of non-certified and certified measurements;
• wherein, depending on the number of non-certified measurements, the certified main solution filter is also operative as a sub-solution filter of the non-certified main solution filter, and the certified sub-solution filters are also operative as sub-sub-solution filters of the non-certified main solution filter;
• wherein each of the certified partition and the non-certified partition respectively output one or more certified solutions and one or more non-certified solutions.

A computer program product comprising:

• a non-transitory computer readable medium having instructions stored thereon executable by a processer to perform a method to assure integrity of integrated certified and non-certified sensors or systems, the method comprising:
• calculating a certified main solution filter within a first software thread in a certified partition;
• calculating one or more certified sub-solution filters, and sub-sub-solution filters within the first software thread in the certified partition;
• calculating a non-certified main solution filter within a second software thread in a non-certified partition;
• if applicable, reusing the certified main solution filter as a non-certified sub-solution filter, and reusing the certified sub-solution filters, as non-certified sub-sub-solution filters;
• calculating one or more non-certified sub-solution filters, and sub-sub-solution filters, within the second software thread in the non-certified partition;
• based on the certified filters, determining one or more protection limits of the certified partition, and/or providing execution of fault detection and exclusion;
• based on the non-certified filters, determining one or more protection limits of the non-certified partition, and/or providing execution of fault detection and exclusion;
• outputting one or more certified solutions from the certified partition;
• and
• outputting one or more non-certified solutions from the non-certified partition.