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Remote process transfering method and system in distribution type control system

A technology of remote procedure call and distributed control, applied in the direction of data exchange through path configuration, to achieve the effect of ease of use, shortened development cycle, and shielded network complexity

Active Publication Date: 2006-10-25
北京和利时控制技术有限公司
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is a remote procedure call system and its method in a distributed control system, in addition to being easy to use and shielding network complexity, it can realize dual-network redundancy switching

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  • Remote process transfering method and system in distribution type control system
  • Remote process transfering method and system in distribution type control system
  • Remote process transfering method and system in distribution type control system

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Embodiment Construction

[0043] All procedure calls, no matter how complex, can be attributed to a unified mode, namely: request response mode. In this mode, the requester transmits the request type and request parameters to the server in the form of a message, and the server processes the request according to the request type and request parameters, and returns the result to the requester in the form of a response message. If the response is received within the specified time, a remote procedure call will be successfully completed; otherwise, the call will be timed out.

[0044] figure 2 It shows a functional block diagram of a remote procedure call (FLRPC) system according to an embodiment of the present invention, and both ends of the call have the same structure. As shown in the figure, each end includes external interface module CFLRPCApi, client module CFLRPCClient, server module CFLRPCServer, network interface abstraction layer module CNet, network interface implementation layer module CNetUd...

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Abstract

Following modules are included at two ends of remote procedure call (RPC): external interface module for providing external uniform interface; client end module and server end module accessible by the external interface module; network interface module accessible by modules at client end and server end; and module of service process thread pool accessible by the server module. After receiving message of RPC, the external interface module obtains all configuration parameters of server task, creates an instance of client end module, and initiates call; client end module accomplishes packaging data and slicing segment, the network interface module sends the packaged data and sliced segment to server module at opposite end as well as carries out switching processes; after recombining segment of RPC messages, server module starts process threaded, and returns result back to caller along original route. Features are: easy of use, masking complexity, and redundant dual networks switching.

Description

technical field [0001] The invention relates to a remote procedure call, in particular to a method and a device for realizing the remote procedure call in a distributed control (DCS) system. Background technique [0002] Whether it is the distributed control system (DCS) in industrial process control, the power station computer system (KIT) in nuclear power plants, or the large-scale supervisory control and data acquisition system (SCADA) used in rail transit, a core issue is involved, that is, distributed The communication problems between the various components of the system brought about by data collection and centralized computing. At the same time, with the expansion of applications, engineering has higher and higher requirements for system deployment flexibility and scalability. [0003] This raises a very real problem: how to establish a complete and reliable distributed computing infrastructure (Distributed Computing Infrastructure (DCI)), so that designers and deve...

Claims

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Application Information

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IPC IPC(8): H04L12/28
Inventor 方垒
Owner 北京和利时控制技术有限公司
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