實時系統的性能(如實現成本，滿足時間約束的能力)很大程度上取決于設計人員的早期決策。本文首先提出一種新的異構實時系統的系統級設計方法。新方法能夠幫助設計人員迅速確定適當的系統結構并實現功能劃分。然后，本文以車用定速器系統前期設計為例，證明了通過新方法確定的實時系統結構不僅能夠滿足時間約束，并且能夠實現系統資源的最優化。
關鍵詞：定速器實時系統 設計方法
Abstract: The quality of the real-time system, i.e. its cost and its ability to reach the time constraints, depends to a large degree on certain early implementation decisions. This Paper firstly presents a new system-level design method of heterogeneous real-time
systems. New design method can help the designer to find appropriate architecture and get optimal function partitioning. Then, an advanced cruise controller for cars is studied. This case study shows the result real-system not only meets the global time constrains, but also optimizes the resources usage.
Keywords: cruise controller, real-system, Design method