This lib is supposed to be used as a sensor's calibration or control program. This makes Cubic Spline Model from some sample plots(sets of (value, voltage)), and then discretize the model (dividing the range of voltage into some steps) in order to use the calibrated model data without getting the INVERSE function.
TRP105F_Spline.h
- Committer:
- aktk
- Date:
- 2016-06-06
- Revision:
- 4:701f958d137a
- Parent:
- 3:b56e933bebc2
- Child:
- 5:7d4fc0979976
File content as of revision 4:701f958d137a:
/** * TRP105F_Spline.h,.cpp * * Author: aktk, aktk.j.uec@gmail.com * Tokyo, Japan. * * - This library is for providing a distance from TRP105F, photo-reflect proximity sensor, * to whatever reflect the flash. * - Deistance is derived as a voltage signal of TRP105F. * - An object of TRPFS class has an array of sets of * distance(16 bit-value) and voltage(16bit-value) at the distance. * - The range of distances that an array has in sets is [0:255] by 1. * - an array is derived from a cubic spline curve model. * - In order to derive spline curve, some value sets should be got * at the first calibration. * * LOG: * ver.1 2015/10/19 - 2015/10/22 * ver.2 2015/10/22 - * Distance data type has become unsigned short from int. * Distance data range : [2:20] by 1 -> [0:1024] by 1. * ver.2.1 2016/02.12 - 2016/02/16 * Distance data range : [0:1024] -> [0:255]. * ver.3.0 2016/05.23 - */ #ifndef TRP105F_Spline_H #define TRP105F_Spline_H #include "mbed.h" // For SPI //int DAread(int channel); // Set of voltage-distance typedef struct { unsigned short x; // distance unsigned short y; // voltage } VDset; // Type of modality to input data for calibration enum UseType { AsDEBUG, AsMODULE } ; // // TRP105FS Class for get distance from voltage // class TRP105FS { public: // Constraction TRP105FS(); TRP105FS(unsigned int); TRP105FS(unsigned int, UseType); TRP105FS(unsigned int, UseType, PinName); //TRP105FS(unsigned int arg_num, DataInType arg_dit, unsigned int channel); // Destraction ~TRP105FS(); // Functions unsigned short getDistance(unsigned short); // alias of getX unsigned short getDistance(); // get voltage from PinName and getX() unsigned short getX(unsigned short); // the fuction to get distance. unsigned short getY(unsigned short); void calibrateSensor(); //void calibrateSensor(VDset* arg_set, unsigned int arg_num); void calibrate(); void setSample(unsigned short,unsigned short); void saveSetting(); void saveSetting(const char *filename); void loadSetting(); void loadSetting(const char *filename); void printOutData(); void printThresholds(); private: // // Defining Constants // enum _SetConstant { _LIDX = 0, _RIDX = 255, _ENUM = _RIDX - _LIDX + 1 }; // // Variables // UseType _useType; unsigned int _Sample_Num; // the number of samples for derive spline VDset* _Sample_Set; VDset _Set[_ENUM]; unsigned short _Threshold[_ENUM]; //_Threshold[18] is not used virtually. double* _u_spline; // // Variable for spi // //unsigned int _channel; // // For calibration // void _sampleData(); void _setSample(unsigned short,unsigned short); void _setSamples(VDset* arg_set, unsigned int arg_num); unsigned short _getSplineYof(double arg_x); void _makeSpline(); // Cubic spline // // For get distance // int _getNearest(int, int, unsigned short); // // For debug // void _printOutData(unsigned short *arg, int num, char* name); void _printOutData(VDset *arg, int num, char* name); void _printOutData(double *arg, int num, char* name); }; #endif