遥感数据处理运行控制中的工作流应用  

Workflow Application in Operation and Control of Remote Sensing Data Processing

作　　者：孙小涓[1] 雷斌[1] 程兆运[1] 朱鹏仁[1] 

机构地区：[1]中国科学院电子学研究所空间信息处理与应用系统技术重点实验室,北京100190

出　　处：《计算机工程》2012年第4期28-30,34,共4页Computer Engineering

基　　金：国家重大科技基础设施基金资助项目"航空遥感系统"

摘　　要：遥感数据处理地面系统的运行控制存在传感器众多、处理算法复杂、流程缺乏统一管理等问题。为此,提出结合工作流技术的通用运行控制模型,将控制逻辑和业务逻辑完全分离,简化系统结构和编程模式,作业管理系统可满足处理算法对资源的不同需求。测试结果表明,运行控制系统响应快速,系统空载时作业响应时间约为0.3 s,随着系统负载的增加,运行控制的延迟没有显著增加。Operation and control of remote sensing data processing system on ground faces the challenges of many sensors and complicated processing algorithms, and suffers lack of uniform workflow management, Aiming at the difficulty, this paper issues a universal model of operation and control combined with workflow technology, which completely separates business logic from control logic, simplifies the structure and programming model of the system, and satisfies various resource requirements of processing algorithms by using job management system. Experimental results show that the operation and control system achieves rapid response. The job response time is about 0.3 second at system idle time, and with the increasing of system workload, the delay of operation and control has no remarkable change.

关 键 词：工作流管理 控制模型 作业调度 作业管理系统 遥感数据处理 数据驱动 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]