Orbital Communications Adapter Management System (OCAMS) release 4.4 was successfully deployed for International Space Station (ISS) operations at Johnson Space Center (JSC) on June 12, 2012. This release delivers twenty enhancements, including a new method for scheduling OCAMS procedures, the capability to pause and cancel procedures, a secure File Transfer Protocol for retrieving and delivering files (FTP/S), Unicode compliance, and file checksum in customer flight note and e-mail notifications.
Given the convenience of accessing ISS files offered by OCAMS, the number of requests to downlink large files, such as imagery and video, and the number of files to downlink have been increasing. To optimize bandwidth and eliminate manual intervention in order to avoid overloading the file transfer programs, a new method called “Search and Downlink” enables automatic and continuous scheduling of downlinks. OCAMS uses scripts to search for high-volume file types on any of the Space Station Computers (SSCs) and schedules corresponding downlink procedures accordingly. This method is more efficient than applying procedures on a fixed schedule or on request, because it keeps downlink queues for these files continuously populated.
BACKGROUND: OCAMS automates routine work in manipulating files onboard the ISS, enabling the consolidation of two Mission Control Center backroom positions. OCAMS is based on a multi-agent, service-oriented architecture for arbitrary integration of software and hardware systems through standard application programming interfaces. OCAMS runs simultaneously on multiple OCA clients that interact with the ISS file transfer program SWRDFSH, which queues requests and reports results to the software agents. OCAMS has been deployed at JSC since July 2008.
NASA PROGRAM FUNDING: OCAMS is funded through an Intercenter Task Agreement between the Ames Intelligent Systems Division and the Johnson Space Center Mission Operations Directorate (JSC MOD).
DEVELOPMENT TEAM: Sue Blumenberg (SGT Inc.), Bill Clancey (ARC/FIHMC), Mike Scott (Dell Services), Chin Seah (SGT Inc.), and Ron Van Hoof (Dell Services)
JSC COLLABORATORS: Tyler Doubrava (MS4/USA), James Hart (DD42/Lockheed Martin Corp.), Claude Jenkins (DD4/Lockheed Martin Corp.), Steve Kirk (DO46/USA), Paul Lansing (FDOC/Lockheed Martin Corp.), Erik Madrid (DO48/Lockheed Martin Corp.), Jason Mintz (DO46/USA), Dan Owen (FDOC/Lockheed Martin Corp.), Jonathan Reyes (DO46/USA), Chuck Shultz (DA39/Barrios Technology), Marc Spicer (DO48), Jason Toschlog (DO48/USA), and Jenny Yang (DD42/Lockheed Martin Corp.)
Contact: William J. Clancey