sensors.h

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