stictionanalyser 0.0.1

Stiction analysis of time series data in Seeq

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seeq-stictiondetection is a Python module to detect oscillations and stiction patterns in control valves. The oscillation detection is able to detect and isolated the periods of time where the oscillation occurs. The stiction detector identifies if stiction is present within the further detected oscillating time periods. Both signals can be pushed back into the Seeq Workbench and further analysis (e.g. with the "Value Search" function). The module includes a user interface (UI) designed to interact with the Seeq server.

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User Guide

seeq-stictiondetection User Guide provides a more in-depth explanation of the algorithm behind the stiction analysis and how seeq-stictiondetection works. Examples of typical types of analyses using seeq-stictiondetection can be found in the section Use Cases.

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Documentation

Documentation for seeq-stictiondetection.

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Installation

The backend of seeq-stictiondetection requires Python 3.7 or later.

Dependencies

See DocumentationStictionDetection.md file for a list of dependencies and versions. Additionally, you will need to install the seeq module with the appropriate version that matches your Seeq server. For more information on the seeq module see seeq at pypi

User Installation Requirements (Seeq Data Lab)

If you want to install seeq-stictiondetection as a Seeq Add-on Tool, you will need:

• Seeq Data Lab (>= R50.5.0, >=R51.1.0, or >=R52.1.0)
• seeq module whose version matches the Seeq server version
• Seeq administrator access
• Enable Add-on Tools in the Seeq server

User Installation (Seeq Data Lab)

The latest build of the project can be found here as a wheel file. The file is published as a courtesy to the user, and it does not imply any obligation for support from the publisher. Contact Seeq if you required credentials to access the site.

1. Create a new Seeq Data Lab project and open the Terminal window
2. Run pip install seeq-stictiondetection --extra-index-url https://pypi.seeq.com --trusted-host pypi.seeq.com
3. Run python -m seeq.addons.stictiondetection [--users <users_list> --groups <groups_list>]

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Development

We welcome new contributors of all experience levels. The Development Guide has detailed information about contributing code, documentation, tests, etc.

Important links

• Official source code repo: https://github.com/seeq12/seeq-stictiondetection
• Issue tracker: https://github.com/seeq12/seeq-stictiondetection/issues

Source code

You can get started by cloning the repository with the command:

git clone [e-mail]:seeq12/seeq-stictiondetection.git

Installation from source

For development work, it is highly recommended creating a python virtual environment and install the package in that working environment. If you are not familiar with python virtual environments, you can take a look here

Once your virtual environment is activated, you can install seeq-stictiondetection from source with:

python setup.py install

Testing

There are several types of testing available for seeq-stictiondetection

Automatic Testing

After installation, you can launch the test suite from the root directory of the project (i.e. seeq-stictiondetection directory). You will need to have pytest >= 5.0.1 installed

To run all tests:

pytest

There are several pytest markers set up in the project. You can find the description of the marks in the pytest.ini file. You can use the -m flag to run only a subset of tests. For example, to run only the backend tests, you can use:

pytest -m backend

The integration tests requires a connection to a Seeq server. The tests are configured to try to access a local Seeq server with the data directory set up in ProgramData/Seeq/data of the local drive. However, you can set the seeq_url, credentials_file configuration options in the test_config.ini file to run the integration tests on a remote Seeq server, or change the local seeq data directory with data_dir.

Note: Remember that the seeq module version in your local environment should match the Seeq server version

User Interface Testing

To test the UI, use the developer_notebook.ipynb in the development folder of the project. This notebook can also be used while debugging from your IDE. You can also create a whl first, install it on your virtual environment, and then run developer_notebook.ipynb notebook there.

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Changelog

The change log can be found here

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Support

Code related issues (e.g. bugs, feature requests) can be created in the issue tracker Any other general comments or questions (non-code related) can be emailed to Seeq

Maintainer: Timothy Essinger

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Citation

Please cite this work as:

seeq-stictiondetection v0.0.1
Seeq Corporation, 2021
https://github.com/seeq12/seeq-stictiondetection