90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright 2013 - 2020, nymea GmbH
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* Contact: contact@nymea.io
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*
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* This file is part of nymea.
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* This project including source code and documentation is protected by
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* copyright law, and remains the property of nymea GmbH. All rights, including
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* reproduction, publication, editing and translation, are reserved. The use of
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* this project is subject to the terms of a license agreement to be concluded
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* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
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* under https://nymea.io/license
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*
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* GNU Lesser General Public License Usage
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* Alternatively, this project may be redistributed and/or modified under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; version 3. This project is distributed in the hope that
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* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this project. If not, see <https://www.gnu.org/licenses/>.
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*
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* For any further details and any questions please contact us under
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* contact@nymea.io or see our FAQ/Licensing Information on
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* https://nymea.io/license/faq
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef SENSORFILTER_H
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#define SENSORFILTER_H
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#include <QObject>
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#include <QVector>
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class SensorFilter : public QObject
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{
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Q_OBJECT
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public:
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enum Type {
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TypeLowPass,
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TypeHighPass,
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TypeAverage
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};
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Q_ENUM(Type)
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explicit SensorFilter(Type filterType, QObject *parent = nullptr);
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float filterValue(float value);
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bool isReady() const;
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void reset();
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Type filterType() const;
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QVector<float> inputData() const;
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QVector<float> outputData() const;
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// Filter configuration
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uint windowSize() const;
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void setFilterWindowSize(uint windowSize = 20);
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float lowPassAlpha() const;
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void setLowPassAlpha(float alpha = 0.2f);
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float highPassAlpha() const;
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void setHighPassAlpha(float alpha = 0.2f);
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private:
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Type m_filterType = TypeLowPass;
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uint m_filterWindowSize = 20;
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float m_lowPassAlpha = 0.2f;
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float m_highPassAlpha = 0.2f;
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float m_averageSum = 0;
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QVector<float> m_inputData;
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QVector<float> m_outputData;
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void addInputValue(float value);
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// Filter methods
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float lowPassFilterValue(float value);
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float highPassFilterValue(float value);
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float averageFilterValue(float value);
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};
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#endif // SENSORFILTER_H
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