关键词: 基于模型的系统工程, VAPS, 民用直升机, 显控系统, 系统验证

Abstract:

Aiming at the challenges of difficulties in tracing requirements, detecting interaction design defects, and achieving early system design verification, this paper proposes a design and verification for the display and control system (DCS) of civil helicopters based on model-based systems engineering (MBSE) and VAPS. The method begins with capturing stakeholder requirements to form system requirements, followed by the allocation of these requirements to system use cases. Black-box activity diagrams and sequence diagrams are constructed to conduct "requirement-function analysis" from the top down, describing the functional flow of the DCS. A running black-box statechart diagram is further established to verify the rationality of functional logic design. Based on the black-box functional architecture, the DCS architecture is developed, with iterative optimization of the allocation scheme through pilot communication. Functional activities from the black-box activity diagram are allocated to subsystems to achieve functional cascading, ensuring coherence throughout the design process. Pilot operation procedures are developed using the VAPS human-machine interface design tool, verifying the consistency of requirements, functions, and logic as well as the rationality of the architecture. This process achieves comprehensive coverage from requirements design to verification.

Key words: model-based system engineering(MBSE), VAPS, civil helicopter, display and control system(DCS), system verification