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SmoothSensor.h
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SmoothSensor.h
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/**
SmoothSensor - class-wrapper allows to smoothe
a signal value of origin Sensor instance.
Wiki: https://en.wikipedia.org/wiki/Moving_average
Instantiation:
Sensor* smoothSensor = new SmoothSensor(SENSOR, SMOOTHING_FACTOR);
Where,
SENSOR - origin Sensor instance.
SMOOTHING_FACTOR - smoothing factor of readings.
Read signal:
int value = smoothSensor->read();
v.1.3.3
- optimized smoothe(*) method;
- renamed default constants;
- added default value of constructor parameters;
- updated documentation.
v.1.3.4
Replaced "define" constants with "static const".
https://github.com/YuriiSalimov/AD_Sensors
Created by Yurii Salimov, January, 2019.
Released into the public domain.
*/
#ifndef SMOOTH_SENSOR_H
#define SMOOTH_SENSOR_H
#include "Sensor.h"
class SmoothSensor final : public Sensor {
private:
// Minimum smoothing factor.
static const int MIN_SMOOTHING_FACTOR = 2;
Sensor* origin;
int smoothingFactor;
int data;
public:
/**
Constructor
@param origin - the origin sensor (not NULL)
@param smoothingFactor - smoothing factor of readings (default, 2)
*/
SmoothSensor(
Sensor* origin,
int smoothingFactor = MIN_SMOOTHING_FACTOR
);
/**
Destructor
Deletes the origin Sensor instance.
*/
~SmoothSensor();
/**
Reads a signal from a origin sensor,
averages the signal and return it.
@return the average signal value.
*/
int read() override;
private:
/**
Perform smoothing of the input value.
@param input - the value to smooth
@return smoothed value or the input value
if the data is 0.
*/
inline int smoothe(int input);
/**
Sets the smoothing factor.
If the input value is less than NTC_MIN_SMOOTHING_FACTOR,
then sets NTC_MIN_SMOOTHING_FACTOR.
@param smoothingFactor - new smoothing factor
*/
inline void setSmoothingFactor(int smoothingFactor);
};
#endif