An Efficient Sensor Observation Data Registration based on Asynchronous Service Middleware

2007 IFIP International Conference on Network and Parallel Computing Workshops (NPC 2007) Pub Date : 2007-09-18 DOI:10.1109/NPC.2007.25

Nengcheng Chen, Zhong Zheng, Zeqiang Chen

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引用次数: 2

Abstract

Recent advances in sensor web geospatial data capture, such as high resolution satellite images as well as corresponding web ready data processing and modeling technologies, have led to the generation of large amounts of datasets on real-time or near realtime observation and measurement. The quality of observation data register has become a 'bottleneck' of sensor web-based applications. In order to improve the quality of sensor data register, Sensor Observation Service (SOS) register middleware is put forward, which includes geospatial sensor observation service (SOS), geospatial catalogue service based on ebRIM, SOS register mediator service, sensor data granule information extraction service, and sensor data granule record generation service. The content and sequence of SOS observation 'synchronous' and 'asynchronous' data register strategy based on service middleware is described. The prototype system is designed and implemented by OGC CSW specification and SWE SOS standard. The EO-1 SOS register is tested, including 2420 WCSLayer observation records in a specified time, and the performance is evaluated. The experimental result shows the efficiency of the 'asynchronous' strategy proposed in this paper is 0.3- 0.4 times fast than that of the 'synchronous'.

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基于异步服务中间件的传感器观测数据高效配准

传感器网络地理空间数据捕获的最新进展，如高分辨率卫星图像以及相应的网络就绪数据处理和建模技术，已经导致产生大量实时或近实时观测和测量数据集。观测数据登记的质量已成为传感器网络应用的“瓶颈”。为了提高传感器数据注册质量，提出了传感器观测服务(SOS)注册中间件，包括地理空间传感器观测服务(SOS)、基于ebRIM的地理空间目录服务、SOS注册中介服务、传感器数据颗粒信息提取服务和传感器数据颗粒记录生成服务。描述了基于服务中间件的SOS观测“同步”和“异步”数据寄存器策略的内容和顺序。原型系统按照OGC CSW规范和SWE SOS标准进行设计和实现。测试EO-1 SOS寄存器，在指定时间内包含2420条WCSLayer观测记录，并对其性能进行评估。实验结果表明，本文提出的“异步”策略的效率比“同步”策略快0.3 ~ 0.4倍。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2007 IFIP International Conference on Network and Parallel Computing Workshops (NPC 2007)

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