sensors.h

00001 #ifndef __SENSORS_H
00002 #define __SENSORS_H
00003 
00004 #include "includes.h"
00005 #include "filters.h"
00006 
00007 class CurrentSensor {
00008 public:
00009     virtual float GetCurrent() {return 0.0f;}
00010     virtual void Zero() {}
00011 };
00012 
00013 class VoltageSensor {
00014 public:
00015     virtual float GetVoltage() {return 0.0f;}
00016     virtual void Zero(){}
00017 };
00018 
00019 class PositionSensor {
00020 public:
00021     virtual float GetPosition() {return 0.0f;}
00022     virtual float GetSpeed() {return 0.0f;}
00023 };
00024 
00025 class TempSensor {
00026 public:
00027     virtual float GetTemp() {return 0.0f;}
00028 };
00029 
00030 class AnalogCurrentSensor: public CurrentSensor {
00031 public:
00032     AnalogCurrentSensor(PinName pin, float volts_per_amp);
00033     virtual void Zero();
00034     virtual float GetCurrent();
00035 private:
00036     float _zero_level, _volts_per_amp;
00037     AnalogIn *_in;
00038 };
00039 
00040 class AnalogVoltageSensor: public VoltageSensor {
00041 public:
00042     AnalogVoltageSensor(PinName pin, float scale);
00043     virtual void Zero();
00044     virtual float GetVoltage();
00045 private:
00046     float _zero_level, _scale;
00047     AnalogIn *_in;
00048 };
00049 
00050 class AnalogHallPositionSensor: public PositionSensor {
00051 public:
00052     AnalogHallPositionSensor(PinName pin_a, PinName pin_b, float cal1_a, float cal2_a, 
00053                              float cal1_b, float cal2_b, float offset);
00054     virtual float GetPosition();
00055     virtual float GetSpeed() {return _speed * 1000000.0f / 360.0f;}
00056 private:
00057     void upd_function() {_time += 50;}
00058     float _cal1_a, _cal2_a;
00059     float _cal1_b, _cal2_b;
00060     float _offset;
00061     AnalogIn *_in_a, *_in_b;
00062 private:
00063     Ticker *_time_upd_ticker;
00064     unsigned long _time;
00065     float _last_time, _last_position, _speed;
00066 };
00067 
00068 class NtcTempSensor: public TempSensor {
00069 public:
00070     NtcTempSensor(PinName pin, float r_25, float ntc_b, float r_divider);
00071     virtual float GetTemp();
00072 private:
00073     float _ntc_a, _ntc_b, _r_divider;
00074     AnalogIn *_in;
00075 };
00076 
00077 class Throttle {
00078 public:
00079     Throttle(PinName pin, float min, float max);
00080     float GetThrottle();
00081 private:
00082     float _min, _max;
00083     VoltageSensor *_in;
00084 };
00085 
00086 #endif