Method to assist identification of a defective functional unit in a technical system
First Claim
1. A method for assisting identification of a defective functional unit in a technical system comprising a plurality of functional units, said method comprising the steps of:
- subjecting said technical system to a test to obtain a first test result relating to operation of said technical system; and
using a test model in which information is compiled with respect to which of said functional units were tested in said test, and using a system model in which information is compiled regarding assembly of said functional units in said technical system, automatically processing said test result by analyzing said test result to determine a group of said functional units which could be defective based on said test result, thereby obtaining an analysis result, and using said analysis result to assign respective defect probabilities to the functional units in said group.
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Abstract
In a method to assist in the identification of a defective functional unit in a technical system that includes a number of functional units, a first test is implemented on the technical system for identification, the first tests implementing a measurement on the technical system and providing a first test result. Using a test model in which information is compiled about which functional units were tested, and using a system model in which information is compiled about the assembly of the technical system, an automated processing of the first test results is implemented. The first test result is analyzed in order to determine a group of functional units that may be defective, and using the analysis of the functional units of the group, defect probabilities are assigned.
42 Citations
23 Claims
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1. A method for assisting identification of a defective functional unit in a technical system comprising a plurality of functional units, said method comprising the steps of:
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subjecting said technical system to a test to obtain a first test result relating to operation of said technical system; and
using a test model in which information is compiled with respect to which of said functional units were tested in said test, and using a system model in which information is compiled regarding assembly of said functional units in said technical system, automatically processing said test result by analyzing said test result to determine a group of said functional units which could be defective based on said test result, thereby obtaining an analysis result, and using said analysis result to assign respective defect probabilities to the functional units in said group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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- 9. A method as claimed in claim I wherein each of said functional units in said group has a pre-test defect probability existing before said first test, and wherein the step of assigning the respective defect probabilities to said functional units in said group comprises, for each of said functional units in said group, formulating a mathematical combination of said pre-test defect probability and a defect probability based on said test.
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11. A method as claimed in claim I comprising employing exchangeable structural units as said plurality of functional units in said technical system.
Specification