Design of Sensor Placement Based on Fault Diagnosability

【摘要】：This paper studies the sensor optimization configuration which meets the fault diagnosability of affine nonlinear faulty systems.First of all,the judgment method of fault diagnosability and the relevant quantitative evaluation indexes based on the differential geometry theory are presented.Then the optimal sensor allocation model is built,and the pagerank algorithm of the web page ranking is introduced into the configuration problem.Being differ from the new intellective heuristic algorithms,the weighted pagerank algorithm shifts the focus from designing an optimal subset search algorithm of better performance out to evaluating the important degree of each measuring point,and makes use of the analytic model more efficiently rather than the direct graph method.In the end,a validation example of the point mass satellite system is presented to demonstrate the effectiveness of the proposed approach.