實時系統(tǒng)的性能(如實現(xiàn)成本，滿足時間約束的能力)很大程度上取決于設(shè)計人員的早期決策。本文首先提出一種新的異構(gòu)實時系統(tǒng)的系統(tǒng)級設(shè)計方法。新方法能夠幫助設(shè)計人員迅速確定適當(dāng)?shù)南到y(tǒng)結(jié)構(gòu)并實現(xiàn)功能劃分。然后，本文以車用定速器系統(tǒng)前期設(shè)計為例，證明了通過新方法確定的實時系統(tǒng)結(jié)構(gòu)不僅能夠滿足時間約束，并且能夠?qū)崿F(xiàn)系統(tǒng)資源的最優(yōu)化。
關(guān)鍵詞：定速器實時系統(tǒng) 設(shè)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