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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2014, Vol. 35 ›› Issue (6): 1703-1713.doi: 10.7527/S1000-6893.2013.0479

• Electronics and Control • Previous Articles     Next Articles

A Software Safety Assessment Method Based on Semi-physical Simulation Test

ZHU Hequan1, XU Haojun1, XUE Yuan1, YANG Xue2, SU Chen1   

  1. 1. Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi'an 710038, China;
    2. Air Force Military Representative Office in Beijing Region, Beijing 100009, China
  • Received:2013-09-09 Revised:2013-11-26 Online:2014-06-25 Published:2014-06-20
  • Supported by:

    National Natural Science Foundation of China (61374145); Aeronautical Science Foundation of China (U1333131)

Abstract:

A safety assessment method based on semi-physical simulation is proposed to assess airborne software safety and develop safety control techniques in complex multi-factor coupled flight situations. A notion is introduced of using flight simulator tests to assess software safety. The operation procedure of the safety assessment method is designed. The simulator's main mathematic model is established. By drawing on biological theory, the mechanism of software fault induced aircraft accident is analyzed. Finally, the safety of an embedded software of stability augmentation system is assessed. The result demonstrates the proposed method is feasible in engineering practice. It can be used to reduce aircraft risk induced by airborne software fault in complex multi-factor coupled flight situations, and improve the safety of airborne software.

Key words: software safety, safety assessment, software reliability, safety testing, safety control

CLC Number: