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Ground Systems Development and Operations

Advanced Ground Systems Maintenance Anomaly Detection (AGSM)

Completed Technology Project

Project Introduction

The Inductive Monitoring System (IMS) software utilizes techniques from the fields of model-based reasoning, machine learning, and data mining to build system monitoring knowledge bases from archived or simulated sensor data. Unlike some other machine learning techniques, IMS does not require examples of anomalous (failure) behavior. IMS automatically analyzes nominal system data to form general classes of expected system sensor values. This process enables the software to inductively learn and model nominal system behavior. The generated data classes are then used to build a monitoring knowledge base. In real-time,

IMS performs monitoring functions, determining and displaying the degree of deviation from nominal performance. IMS trend analyses can detect conditions that may indicate a failure or required system maintenance. The development of the IMS was motivated by the difficulty of producing detailed diagnostic models of some system components due to complexity or unavailability of design information.

 

This project will develop the capability to identify anomalous conditions (indications to potential impending system failure) in ground system operations before such failures occur. These indicators are not presently detectable by traditional command and control and fault detection systems.  This project enables the delivery of system's health advisories to ground system operators so they can take action prior to experiencing systems failures. Inductive Monitoring System (IMS) detected anomalies can be sent to a diagnostic software module for diagnosis.

Anomaly Detection provides the 21st Century Launch Complex Program with the ability to identify/recognize systems' anomalies before they become faults in the system; it supports the resolution of such anomalies to assure system availability and mission success. This capability also allows reduction in systems' maintenance costs by dictating when maintenance is needed (Maintenance-on-Demand) versus performing maintenance on schedule. 

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