摘要
由于嵌入式GIS系统被广泛地应用于移动性较强的设备,因此功耗成了一项重要的技术指标。本文系统地描述了对嵌入式GIS系统进行低功耗设计的方法。本文将功耗分为硬件功耗和软件功耗,其中软件低功耗设计是个新的领域。本文采用按需转换处理器状态、优化编译器、按需分层调入GIS数据、优化关键算法和压缩栅格数据等方法从软件角度降低系统功耗。
Because the embedded GIS system is broadly been applied in the ambulation stronger equipments, the power waste is an important technique index sign of it.This paper describes the low-power design of embedded GIS system systematically. The power waste is derided into power of hardware and power of software.The low-power dsign of software is an infant domain.This paper uses some methods to reduce the power waste of system such as transforming the state of processor on demand,optimizing the compiler,importing the GIS data layerly on demand,optimizing the pivotal algorithm and compressing the grid data.
出处
《微计算机信息》
北大核心
2008年第34期214-215,233,共3页
Control & Automation
