Semanteme service combination method based on dynamic planning

A technology of service composition and dynamic programming, applied in the field of networked manufacturing service composition, can solve the problems of high complexity, automation of process operation and low degree of dynamic adjustment

Inactive Publication Date: 2013-06-12
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

One is a workflow-based method, which uses a model similar to the classic workflow modeling method to describe composite services, which is simple to implement, but requires prior knowledge of the specific structure of the process and the functions and purposes of each activity in the process. The mapping from the workflow business model to the service environment can only be converted statically, and the degree of automation and dynamic adjustment of process operation is not high
The ot

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  • Semanteme service combination method based on dynamic planning
  • Semanteme service combination method based on dynamic planning
  • Semanteme service combination method based on dynamic planning

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Embodiment Construction

[0034] Describe the present invention below in conjunction with specific embodiment:

[0035] This embodiment takes the processing of blade parts as an example, the blade processing is divided into processing damping table (v 1 ), leaf body (v 2 ), leaf root (v 3 ) three processes, v 0 and v 4 for the start and end nodes, such as figure 2 shown. The user pays the same attention to each quality parameter, and requires various deviations to be controlled within 10%, to find the optimal service combination scheme that meets the requirements of the manufacturing task.

[0036] The semantic service composition method based on dynamic programming in this embodiment adopts the following steps:

[0037] Step 1: The processing combination scheme for processing blade parts in this embodiment includes 3 manufacturing activities, which are divided into processing damping table (v 1 ), leaf body (v 2 ), leaf root (v 3 ) three processes, divided into 4 manufacturing activity nodes...

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Abstract

The invention provides a semanteme service combination method based on dynamic planning. The semanteme service combination method based on the dynamic planning comprises firstly, decomposing a manufacturing service process model through a workflow engine, extracting requirements of each active node, and then obtaining all services which satisfy the active node through a service find matching process, and at last, selecting an appropriate candidate service from the services to generate a service combined scheme according to a certain strategy, achieving mapping a specific semanteme onto a task, and using a manufacturing service process which is described in a workflow model to translate a generating process of the semanteme service combined scheme into a dynamic evolution multistage decision process by combining characteristics of a networked manufacturing mode, using a data semanteme relationship between services as restraint, using comprehensive quality of the combined scheme as an optimization target, and using a dynamic planning method to generate a combined scheme which is globally optimum. The semanteme service combination method based on the dynamic planning has the advantages of enabling confirmation of a globally optimum solution to be easy, saving computing amount, being beneficial for providing abundant combined scheme results for a user, and improving performability of the combined scheme and automation degree of a combining process.

Description

technical field [0001] The invention relates to the technical field of combination of networked manufacturing services, in particular to a method for combining semantic services based on dynamic programming. Background technique [0002] Service composition is an effective way to construct business processes in a networked manufacturing environment and realize on-demand allocation of manufacturing resources. Existing service composition technologies can be classified into two categories. One is a workflow-based method, which uses a model similar to the classic workflow modeling method to describe composite services, which is simple to implement, but requires prior knowledge of the specific structure of the process and the functions and purposes of each activity in the process. The mapping from the workflow business model to the service environment can only be converted statically, and the degree of automation and dynamic adjustment of process operation is not high. The oth...

Claims

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Application Information

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IPC IPC(8): G05B13/04
Inventor 王明微周竞涛
Owner NORTHWESTERN POLYTECHNICAL UNIV
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