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Distributed industrial data distribution method based on DDS

An industrial data and distributed technology, applied in the field of cyber-physical systems, can solve problems such as multi-node data transmission single-point failure, data collection non-standardization, etc., and achieve the effect of improving recognizability, efficiency, and easy retrieval

Active Publication Date: 2019-03-29
NO 719 RES INST CHINA SHIPBUILDING IND
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Problems solved by technology

[0005] Aiming at at least one defect or improvement requirement of the prior art, the present invention provides a distributed industrial data distribution method based on DDS, the purpose of which is to solve the problems of non-standardization of data collection in the field of industrial control and single-point failure of multi-node data transmission

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  • Distributed industrial data distribution method based on DDS
  • Distributed industrial data distribution method based on DDS
  • Distributed industrial data distribution method based on DDS

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0048] A kind of distributed industrial data distribution method based on DDS provided by the present invention, such as figure 1 shown, including the following steps:

[0049] S1: Create a device interface file for each abstract device in the system, the device interface file is used to define the interface type, interface parameters and interface data format of the abstract device;

[0050] ...

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Abstract

The invention discloses a distributed industrial data distribution method based on a DDS. The method comprises the following steps: S1, creating a device interface file for each abstract device; S2, creating a subscription and issuing relation mapping table, and building a mapping relation between a data subscriber and a data issuer and the mapping relation between the data subscriber and a DDS theme; S3, creating a real-time database; S4, acquiring interface data of the data issuer and issuing the interface data in a network through a form of the DDS theme; S5, decoding the DDS theme data andwriting the decoded data into the real-time database; S6, reversely finding out the data issuer corresponding to the DDS theme according to the subscription and issuing relation mapping table, and calling a device interface of the data subscriber to notify the data subscriber to read the DDS theme data. With the method provided by the invention, software interfaces of industrial sensors are unified, consistent data acquisition and output processing is realized, and integration of the sensors, miniature devices, virtual devices and non-standard devices of different models and different types is facilitated.

Description

technical field [0001] The invention belongs to the technical field of cyber-physical systems, and more specifically relates to a DDS-based distributed industrial data distribution method. Background technique [0002] Data Distribution Service Specification (Data Distribution Service, DDS) is an international standard for distributed data exchange. It adopts the communication structure of subscription and publication centered on topics, and provides low latency and high throughput for high real-time and large concurrent application systems. , high real-time, decentralized communication solutions, mainly used in key and important fields such as national defense, telecommunications, aviation, and high-speed rail. [0003] Industrial data refers to the relevant data generated by sensors in industrial scenes to perceive the state and parameters of a specific physical environment, including the state, measurement, and criteria of physical quantities sensed by industrial sensors,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/10H04L67/12H04L67/2885H04L67/30
Inventor 张磊
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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