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DAIDALUS: Detect and Avoid Alerting Logic for Unmanned Systems

Release: v2.0.4 (C++), October-31-2023

Copyright: Copyright (c) 2021 United States Government as represented by the National Aeronautics and Space Administration. No copyright is claimed in the United States under Title 17, U.S.Code. All Other Rights Reserved.

Description of Files

  • LICENSES: Directory containing NASA's Open Source Agreements.
  • src: Directory of C++ code.
  • include: Directory of C++ headers.
  • lib: Directory containing library file.
  • doc: Directory of code documentation.
  • examples: Directory of examples.
  • DaidalusExample.cpp: Simple application that illustrates the main functionalities provided by DAIDALUS.
  • DaidalusAlerting.cpp: Batch application that produces a CSV file with alerting information from configuration and encounter files.
  • DaidalusBatch.cpp: Batch application that produces alerting and banding information from configuration and encounter files.
  • Makefile: Unix make file to compile example applications.

Requirements

This C++ code has been compiled in Mac OSX using

Apple clang version 11.0.0 (clang-1100.0.33.17)
Target: x86_64-apple-darwin18.7.0
Thread model: posix

and in Linux using:

g++ 7.4.0

Compiling example applications

To compile example applications in a Unix environment, type (dollar sign $ represents the prompt of a Unix terminal)

$ make

Running example applications

To run a simple DAIDALUS application in a Unix environment, type

$ ./DaidalusExample

Several DAA metrics can be computed in batch mode for given configuration and encounter files using the sample program DaidalusAlerting, e.g.,

$ ./DaidalusAlerting --conf ../Configurations/DO_365B_no_SUM.conf ../Scenarios/H1.daa
Loading configuration file ../Configurations/DO_365B_no_SUM.conf
Processing DAIDALUS file ../Scenarios/H1.daa
Generating CSV file H1_DO_365B_no_SUM.csv

The generated file H1_DO_365B_no_SUM.csv contains alerting information computed by DAIDALUS for the encounter H1.daa assuming DO-365B (no SUM) configuration.

The sample program DaidalusBatch generates alerting and banding information for given configuration and encounter files, e.g.,

$ ./DaidalusBatch --conf  ../Configurations/DO_365B_no_SUM.conf ../Scenarios/H1.daa

prints alerting and banding information time-step by time-step for the encounter H1.daa assuming DO-365B (no SUM) configuration.

The Perl script daidalize.pl takes as input a DAIDALUS log file and generates configuration (.conf) and encounter (.daa) files that can be used with the previous programs. A DAIDALUS log file is a text file produced by printing the string daa.toString() at every time step, where daa is a Daidalus object.

Contact

Cesar A. Munoz (cesar.a.munoz@nasa.gov), NASA Langley Research Center.