关键词: 嵌入式系统, 构件模型, 契约, 动态演化

Abstract: Concerning the dynamic evolution and QoS requirement problems of embedded application systems, an embedded component model - ESIM model was outlined. The dynamic evolution method of the ESIM model was discussed, including the evolution strategy and process, and the discussion stressed the check of the dynamic evolution request according to the QoS layer contract, the evolution contract and the resource consumption information. Simulation results show that the dynamic evolution system of the ESIM is better for solving the state transmission, resources occupation and realtime ability problems, as the duration and resource consumption of the evolution are predictable.

Key words: embedded system, component model, contract, dynamic evolution