弹性业务逻辑组合的在线遥感应用框架

Online framework for RS application based on flexible combination of business logic

针对当前的一般在线遥感处理平台中存在的数据共享形式单一,难以实现应用场景的共享;细粒度处理服务的共享与描述不足以满足复杂遥感业务的整合需求;缺乏有效的交互模式及良好的用户认知体验等问题,该文提出了一种SOA环境下的基于弹性业务的在线遥感应用框架。该框架实现了数据/服务的搜索及应用环境模拟的功能实现了数据、服务、应用的多层次的共享。该框架也使用的弹性的业务逻辑组合方法和"热插拔"的模式较好地满足了复杂的业务需求,同时框架采用了富客户端技术,给用户提供了较好的使用体验。最后,通过一个遥感分类处理实例说明了该处理框架的有效性和可行性。

Widely-spread problems in current existing general online platforms for remote sensing application are as follows, the sharing form of raw data are often too simple to be shared in an application scenario for users to use; the small-granularity processing services are not shared and described appropriately so it＇s difficult to apply them in the complicated workflow of certain businesses; the platforms are often lack of efficient interaction mode and good user cognitive experiences. According to current state of the online platforms and the existing problems, this paper proposed a flexible business logic based online remote processing framework for remote sensing application in the SOA（Service Oriented Architecture）en- vironment. The mentioned framework designs implemented the data/service/application searching function which fulfilled the flaw of the multiple sharing levels problem. Flexible business composition method and hot-plugin mode were applied to fulfill the complex business requirement. Also the RIA（rich internet appli- cation）technology was applied to simulate the processing environment archiving the goal of providing better user experience. At last, this paper used an instance of image classification business to explain how to solve the problems, and then verified the feasibility and effectivity of the proposed processing mode.