HDF5 for Real-Time and/or Embedded Test Data

Flight tests have multiple data sources Communications aircraft Aircraft Non-time based data Can have many data sources for a single event. Need different data rates, content, views of data. Calibration Satellite/GPS Documents Video Automobile testing Voice communications HDF5 lets us manage those sources, mixing all types of information In a single file HDF5 supports different views, access patterns, fast I/O all in one package. Ground tracking

Avoiding stovepipe solutions Other monitoring & testing Military flight testing Commercial flight testing Common data model and storage format  Tomorrow: shared apps Today: separate apps Commercial flight testing Other monitoring & testing Military flight testing Gather data unique models and many formats Visualize, analyze unique codes and tools Shared visualization, analysis codes and tools Archive many formats Common archive format Current testing applications use different formats, develop codes independently. HDF5 lets us share tools and analysis codes, saving effort and cost.

Task 1: Fixed & variable length record storage, access Data Variable-length data records Time . . Data Fixed-length data records Time Need simple, efficient API for a range of applications and environments. HDF5-based storage and API will yield cost savings, ultimately leading to standardized formats, software, tools. Records can be fixed or variable in length. Variable-length records can vary in size & content per time step.

Tasks Make the HDF5 Table API efficiently support fixed and variable length time-sequenced test data in a way that works across a range of applications and environments. Support horizontal view during collection, and vertical views during analysis Handle high I/O data rates, and high volume Accommodate multiple streams Deal with dropouts