Systems and methods for identifying faulty sensors

摘要

Systems and methods for identifying a faulty sensor are provided. One system includes multiple sensors, each generating a first set of parameters based on detected measurands. The system also includes a fusion module for generating a second set of parameters by fusing the first sets of parameters, and a sensor fault module including multiple fault templates defining sensor faults, an estimation module for generating a third set of parameters based on the first and second sets of parameters, and an evaluation module. The evaluation module is configured to compare the third set of parameters and the fault templates, and determine a sensor fault based on the comparison. A method includes receiving a first set of parameters based on measurands from multiple sensors and a second set of parameters based on a measurand from a sensor, and determining a sensor fault based on the first and second set of parameters.

主权项

1. A sensor system comprising:
at least one sensor device; a fusion module; and a sensor fault module, the sensor fault module further comprising: a fault template module configured to store a set of fault templates, each fault template indicative of one of a plurality of faults for the at least one sensor device; an estimation module configured to generate a third set of parameters representing an estimated measurand for the at least one sensor device based on a first set of parameters generated by the at least one sensor device and a second set of parameters generated by the fusion module; and an evaluation module coupled to the fault template module and to the estimation module, wherein the evaluation module is configured to:
compare the third set of parameters and the set of fault templates, anddetermine one of the plurality of faults for the at least one sensor device based on the comparison, wherein the sensor fault module is coupled between the at least one sensor device and the fusion module.