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Super-frame testing method for wireless network for industrial automation-process automation

An industrial wireless network and process automation technology, applied in data exchange network, using return channel for error prevention/detection, transmission system, etc., can solve large errors in equipment testing, do not consider the influence of super frame time, and cannot be accurately tested Find out the implementation of the superframe of the device under test and other issues, so as to avoid the interference of the test, complete the consistency test, and facilitate the test work

Active Publication Date: 2017-07-04
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0005] The existing WIA-PA protocol conformance test method does not take into account the influence of the device under test on the test super frame time, resulting in a large error in the test of the device, and it is impossible to accurately test the device under test. frame execution, the present invention proposes a superframe testing method for process automation industrial wireless networks

Method used

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  • Super-frame testing method for wireless network for industrial automation-process automation
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  • Super-frame testing method for wireless network for industrial automation-process automation

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Embodiment Construction

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] Such as figure 1 Shown is that what adopted among the present invention is the WIA-PA network star topology, wherein the device under test is a routing device or a field device;

[0050] Use the resource allocation command frame to set the time and superframe information of the device under test, so that the device under test can transmit and receive continuously. The test system is configured to match the superframe structure of the device under test, such as figure 2 shown;

[0051] The test system sends a data request message at the beginning of each sending time slot, and waits for the ACK and data response message of the test system. If the correct ACK and data response message are received, it is considered to be an effective data communication process;

[0052] Such as image 3 Shown is the test flow of the present invention,...

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Abstract

The invention relates to a wireless network technology oriented to industrial application, in particular to a super-frame testing method for wireless network for industrial automation-process automation. The method is mainly used for testing whether a super-frame is configured correctly for equipment under test (routing equipment or field equipment) or not, and performing data forwarding according to correct super-frame information. In the method, the interference of factors such as environmental interference and clock shift on testing are considered fully, the time offset of the super-frame is estimated by a least square method, and the super-frame configuration of the equipment under test and an error of the super-frame are tested on the premise of not changing the function of the equipment under test and a communication mode, thereby achieving the effects of high efficiency, high accuracy and easiness in implementation.

Description

technical field [0001] The invention relates to process automation-oriented industrial wireless network technology, in particular to a superframe testing method for process automation-oriented industrial wireless network. Background technique [0002] Industrial wireless network technology for process automation has the advantages of low cost, low energy consumption and easy use. With the popularization and application of process automation-oriented industrial wireless networks, the industrial measurement and control system that realizes "ubiquitous perception" and "whole process optimization control" at low cost has become a hot technology and has broad development prospects, representing industrial automation system technology It will play an important role in improving product production efficiency and simplifying industrial production processes. It has broad application prospects in high energy-consuming and high-pollution industries such as oil and gas exploration, petr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L1/16H04J3/06H04J3/24
CPCH04J3/0655H04J3/0661H04J3/242H04L1/1664H04L43/106
Inventor 王恺梁炜张思超张晓玲孙浩
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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