Success d eveloped f or t he security s ystem , a11 he sa me t ime t he se curity s ystem h as g ood popularization prospects , ones that adopt rational company rose microsoft company visio and ca company erwin , the modeling software goes on the demand to analyze , business modeling , system modeling , designer modeling , demand and analyze software must have good figure ability , offer many kinds of language formulation ability of codes at the same time 由于系统设计技术较多，开发过程复杂，涉及到软件系统间的兼容问题、数据库安全问题等诸多问题，为保证系统开发的成功，同时保证系统具有良好的推广前景，采用rational公司的rose ， microsoft的visio 、 ca的erwin等建模软件进行需求分析、业务建模、系统建模、设计建模，要求分析软件必须具有良好的图形功能，同时提供多种语言代码的生成能力。
In view from the demands of the modern geosciences and the development of spatial information technology on the cartography theory , map information acquisition and processing technology and mapping technology and mapping products , the paper holds that traditional teaching materials of cartography should be fully reformed as to adapt to sell - development demands of cartography and the related subjects , proposed the system of cartographic teaching - learning reform and the content of the teaching material 摘要从现代地球科学与空间信息技术发展对地图学理论、地图信息获取处理、制图技术工艺和地图产品等方面所提出的基本要求分析，文章认为应对传统的地图学教材内容进行彻底改革，才能适应数字环境下地图学科的自身发展以及地球科学与相关学科发展的需要，最后给出了作为有关地球科学类地图学教学内容改革的框架体系和教材的具体内容。
According to the request of the system design , the author analyzed the whole structure and working principle of the circuit , divided it into sub - circuits in terms of its different functions , introduced the basic theory of charge pump and then laid out the structure of adaptive 1x / 1 . 5x charge pump emphasizing the analysis of its working principle and then designed the sub - circuits 作者首先根据功能要求分析了电路的系统原理,设计了整体结构,按照功能进行了子模块划分。接着介绍了电荷泵的基本理论,分析了自适应1倍/ 1 . 5倍模式电荷泵的电路结构及其工作原理,重点是1 . 5倍模式的升压原理以及对输出电压的线性调节。
