Enhanced Query Data Recorder (EQDR) - Networked Flight Recorder for the Future.

摘要

The Test Resource Management Center's (TRMC) Spectrum Efficient Technologies (SET) S&T program is sponsoring development of the Enhanced Query Data Recorder (EQDR), a network flight recorder that is intended to meet the future needs of the networked telemetry environment. EQDR is designed to support the 'fetch' of recorded test data during a test without interrupting the ongoing recording of data from the test article vehicle network. EQDR advances the state of the art of recorder technology in several ways. First, it supports concurrent recording and retrieval of data at a high rate. Second, EQDR provides native support of the iNET TmNS message format. Third, EQDR enables parametric-level data retrieval, based not only on time interval and data source, but also on the content of the recorded data messages. EQDR enables selective, efficient retrieval of individual parameters using indexes derived from the actual values of recorded data. The key benefits of the network data recorder as implemented in EQDR are increased flexibility and efficiency of test in an environment with increasing demands on spectrum available for telemetered data.