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Implementation method of opensafety function safety based on powerlink

An implementation method and functional safety technology, applied in the direction of comprehensive factory control, comprehensive factory control, user identity/authority verification, etc., can solve the problems of openSAFETY real-time time period, data frame length information security and other network transmission performance limitations, to achieve Excellent network real-time performance and the effect of meeting higher performance network security requirements

Active Publication Date: 2018-08-10
ZHEJIANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this protocol structure also makes openSAFETY's real-time, jitter, time period, data frame length, information security and other network transmission performance limited by the underlying communication protocol

Method used

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  • Implementation method of opensafety function safety based on powerlink
  • Implementation method of opensafety function safety based on powerlink
  • Implementation method of opensafety function safety based on powerlink

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Experimental program
Comparison scheme
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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] The present invention designs a POWERLINK-based openSAFETY functional security implementation method, replaces the CANopen protocol of the POWERLINK application layer with the openSAFETY protocol, and integrates the openSAFETY functional modules into the POWERLINK protocol stack through function calls, thereby realizing openSAFETY on POWERLINK security function.

[0025] Specifically, as attached figure 1 As shown, the POWERLINK service data object, process data object and network management state machine serve for the POWERLINK network to realize inter-node communication and lower layer protocol data transmission. in:

[0026] Process data objects are used for the cyclic transfer of process data for synchronous communication.

[0027] The service data object is a communication data object like the process data object, and the servic...

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Abstract

The invention provides a method for realizing openSAFETY function security based on POWERLINK, comprising the following steps: A, establishing a plurality of function modules; and B, fusing an openSAFETY protocol into a POWERLINK protocol stack through the function modules, replacing a CANopen protocol of a POWERLINK application layer, and implementing function security applications of openSAFETY on a POWERLINK protocol, wherein the function modules include a security check module, a parameter configuration module and an object dictionary mapping module. Aiming at the deficiency in the prior art, the invention provides the method for realizing openSAFETY function security based on POWERLINK. A high-speed industrial Ethernet POWERLINK is used as an underlying communication protocol of openSAFETY, and thus, function security applications of openSAFETY are realized on a POWERLINK protocol.

Description

technical field [0001] The invention relates to the field of industrial Ethernet safety, in particular to a high-performance implementation scheme of the industrial Ethernet functional safety protocol openSAFETY. Background technique [0002] At present, the main content of industrial Ethernet security research is functional safety, that is, to ensure the adaptability, reliability and maintainability of industrial networks under the interference of various industrial environments such as electromagnetic, high temperature, noise and vibration. The security performance and scope of application of traditional industrial security technologies are limited by traditional bus protocol standards, and the cycle time is limited to milliseconds. The related theories and frameworks are no longer applicable to the rapidly developing real-time industrial Ethernet. Therefore, in order to meet the higher-performance network security requirements in the industrial field, many companies and o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/32G05B19/418
CPCY02P90/02
Inventor 王文海张稳稳嵇月强张益南许志正周伟魏昊旻
Owner ZHEJIANG UNIV
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