Patent application EP20181779A (EP), filed 2020-06-23
Publication number: EP3757518A1
Title: METHOD TO ASSURE INTEGRITY OF INTEGRATED CERTIFIED AND NON-CERTIFIED SENSORS
Abstract: A method to assure integrity of integrated certified and non-certified sensors or systems comprises calculating a certified main solution filter within a first software thread in a certified partition; calculating certified sub-solution filters, and sub-sub-solution filters within the first software thread; 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 non-certified sub-solution filters, and sub-sub-solution filters, within the second software thread; based on the certified filters, determining protection limits of the certified partition, and/or providing execution of fault detection and exclusion; based on the non-certified filters, determining protection limits of the non-certified partition, and/or providing execution of fault detection and exclusion; outputting certified solutions from the certified partition; and outputting non-certified solutions from the non-certified partition.
IPC codes: G01C  23/    00            A I
G01S  19/    48            A I
G06F  21/    64            A I
G08G   5/    00            A I
G01S  19/    20            A I
G01S  19/    49            A I
G06F  21/    57            A I
Claims: number: 1
text: A method to assure integrity of integrated certified and non-certified sensors or systems, the method comprising:
number: 2
text: The method of claim 1, wherein the first software thread in the certified partition has high certification requirements.
number: 3
text: The method of claim 2, wherein the first software thread in the certified partition has certification requirements comprising design assurance level (DAL) A.
number: 4
text: The method of claim 1, wherein the second software thread in the non-certified partition has low or no certification requirements.
number: 5
text: The method of claim 4, wherein the second software thread in the non-certified partition has certification requirements comprising DAL B, DAL C, DAL D, or DAL E.
number: 6
text: The method of claim 1, wherein the certified partition and the non-certified partition are implemented in a processor in operative communication with a navigation system on a vehicle.
number: 7
text: The method of claim 6, wherein the navigation system comprises:
number: 8
text: The method of claim 6, wherein the vehicle comprises an aircraft, a spacecraft, or a ground vehicle.
number: 9
text: The method of claim 1, wherein:
number: 10
text: A system for applying a method to assure integrity of integrated certified and non-certified sensors or systems providing measurements, the system comprising:
Office action: search_report, dated 2020-12-30
Rejection reasons: inventive_step_epc_56
Prior art cited: ref_id: EP2665013A1
ref_type: patent
severity: background
ref_id: US2013124015A1
ref_type: patent
severity: background
ref_id: EP3043148A1
ref_type: patent
severity: background
ref_id: EP2784445A2
ref_type: patent
severity: background
ref_id: US2013124015
ref_type: patent
severity: obviousness
ref_id: EP2665013
ref_type: patent
severity: obviousness
ref_id: EP2784445
ref_type: patent
severity: obviousness
ref_id: EP3043148
ref_type: patent
severity: obviousness
Final disposition: pending (2020-12-30)