Disk Recording System (DRS) is a systems- integration computer program for a direct-to-disk (DTD) high-speed data-acquisition system (HDAS) that records rocket-engine test data. The HDAS consists partly of equipment originally designed for recording the data on tapes. The tape recorders were replaced with hard-disk drives, necessitating the development of DRS to provide an operating environment that ties two computers, a set of five DTD recorders, and signal-processing circuits from the original tape-recording version of the HDAS into one working system. DRS includes three subsystems: (1) one that generates a graphical user interface (GUI), on one of the computers, that serves as a main control panel; (2) one that generates a GUI, on the other computer, that serves as a remote control panel; and (3) a data-processing subsystem that performs tasks on the DTD recorders according to instructions sent from the main control panel. The software affords capabilities for dynamic configuration to record single or multiple channels from a remote source, remote starting and stopping of the recorders, indexing to prevent overwriting of data, and production of filtered frequency data from an original time-series data file.

This program was written by Paul M. Lagarde, Jr., of the Boeing Co. and Bruce Newnan of Integrated System Consultants for Stennis Space Center.

Inquiries concerning rights for the commercial use of this invention should be addressed to

the Intellectual Property Manager
Stennis Space Center
(228) 688-1929.

Refer to SSC-00188.

NASA Tech Briefs Magazine

This article first appeared in the December, 2003 issue of NASA Tech Briefs Magazine.

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