Abstract
An approach to the dynamic formation (adjustment) of schedules for distributed photogrammetric image processing in a network of ground centers included in the United geographically distributed information system for receiving and processing Earth remote sensing data from space is considered. Having the fullest satisfaction of requirements of consumers to the satellite images of necessary areas, the approach provides the formation of self-organizing B2B enterprises in the specified network providing information, software and hardware resources of the ground-based facilities of various departmental and other accessories for photogrammetric processing of any received images of the area from the the United geographically distributed information system. It is shown, that a search in B2B enterprise nodes and borrowing the required resources will allow ground centers to flexibly scale physical and virtual means of photogrammetric processing of Earth remote sensing data, quickly form their local structural and functional organizations depending on the current properties of the consumer requests flow for receiving Earth remote sensing data in the United geographically distributed information system, characteristics of the flow of terrain survey materials from orbital monitoring tools, and also take into account the visual and measuring properties of images of the area subject to photogrammetric processing. A method for truncating the set of potential performers of the application in accordance with the existing semantic and other restrictions on the composition of the desired set of performers is proposed. Also mechanisms to encourage ground centers to provide idle resources to B2B enterprise nodes are proposed. They are based on the possibility of receiving monetary or other remuneration from a ground center for participating in distributed application servicing. The development of a well-known model of a self-organizing B2B enterprise creates conditions for a more efficient organization of servicing the flow of applications in the United geographically distributed information system by attracting unused software, information and hardware resources of ground centers of various departmental affiliations.
Highlights
An approach to the dynamic formation of schedules for distributed photogrammetric image processing in a network of ground centers included in the United geographically distributed information system for receiving and processing Earth remote sensing data from space is considered
Having the fullest satisfaction of requirements of consumers to the satellite images of necessary areas, the approach provides the formation of self-organizing B2B enterprises in the specified network providing information, software and hardware resources of the ground-based facilities of various departmental and other accessories for photogrammetric processing of any received images of the area from the the United geographically distributed information system
That a search in B2B enterprise nodes and borrowing the required resources will allow ground centers to flexibly scale physical and virtual means of photogrammetric processing of Earth remote sensing data, quickly form their local structural and functional organizations depending on the current properties of the consumer requests flow for receiving Earth remote sensing data in the United geographically distributed information system, characteristics of the flow of terrain survey materials from orbital monitoring tools, and take into account the visual and measuring properties of images of the area subject to photogrammetric processing
Summary
Узлами B2B-предприятия являются подсистемы ФГО каждого из НЦ различной ведомственной принадлежности. Эти подсистемы формируют локальные расписания ФГО изображений при обслуживании заявок, поступающих в соответствующий НЦ. Собственно, в узлы B2B-предприятия по территориальному, ведомственному или иному принципу поступают заявки на предоставление данных ДЗЗ. Распределенная ФГО изображений выполняется B2B-предприятием тогда, когда узел сети, в которую поступила заявка, не может ее обслужить с использованием имеющихся ресурсов. Что процессом поиска исполнителей для фотограмметрической обработки изображений местности в интересах выполнения каждой такой заявки управляет узел, в который заявка поступила. Обладающие ресурсами для обслуживания заявки, будем называть потенциальными исполнителями. Узлы, предоставляющие ресурсы для обслуживания заявок, будем называть узламиисполнителями. Любая дуга каждого из этих графов соответствует возможным информационным и экономическим связям между узлами в процессе обслуживания i-й заявки. Каждая дуга характеризует предоставление планирующему узлу некоторого ресурса одного из узлов предприятия [3]
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