LiquidPressure.cpp

00001 #include "LiquidPressure.hpp"
00002 
00003 LiquidPressure::LiquidPressure()
00004 {
00005     ain = new AnalogIn((PinName)PINS::LIQUID::AIN);
00006     read();
00007 }
00008 
00009 LiquidPressure::~LiquidPressure()
00010 {
00011    delete ain;
00012    ain = NULL;
00013 }
00014 
00015 float LiquidPressure::calc()
00016 {
00017     SERIAL_PRINT_DBG_FUNCNAME();
00018      float &v_ref = SENSORS::GP_M010_KEYENCE::V_REF;
00019      float &shut_r = SENSORS::GP_M010_KEYENCE::SHUNT_R;
00020      float &lowest_cur = SENSORS::GP_M010_KEYENCE::LOWEST_CUR;
00021      float &pressure_coef = SENSORS::GP_M010_KEYENCE::PRESSURE_COEF;
00022      float &val = packet.pressure.val;
00023      float ret;
00024      short ret_s;
00025      ret = (v_ref * val / shut_r - lowest_cur) * pressure_coef;
00026      ret_s = ret *= 4096;
00027      ret /= ret_s / 4096;
00028      return ret < 0 ? 0 : ret;
00029 }
00030 
00031 void LiquidPressure::toJSON(char* buf)
00032 {
00033     char* &fmt = SENSORS::GP_M010_KEYENCE::JSON_FMT;
00034     char* &type = SENSORS::GP_M010_KEYENCE::TYPE;
00035     char* &pn = SENSORS::GP_M010_KEYENCE::PN;
00036     char* &unit = SENSORS::GP_M010_KEYENCE::UNIT;
00037 SERIAL_PRINT_DBG_FUNCNAME();
00038     time_t &time = packet.pressure.timeStamp;
00039 SERIAL_PRINT_DBG_FUNCNAME();
00040     float f = calc();
00041 SERIAL_PRINT_DBG("%f\n", f);
00042 //      sprintf(buf,fmt,type,pn,time,f,unit);
00043     sprintf(buf,fmt,type,pn,f);
00044 }
00045 
00046 void LiquidPressure::getBytes(uint8_t*)
00047 {
00048 }
00049 
00050 void
00051 LiquidPressure::go()
00052 {
00053     SERIAL_PRINT_DBG_FUNCNAME();
00054     timeout->attach(callback(this,&LiquidPressure::read), PREFERENCES::SENSING_INTERVAL[SENSORS::PRESSURE]);
00055     packet.pressure.val = ain->read();
00056     SERIAL_PRINT_DBG_FUNCNAME();
00057     RTC_GET_UTC(packet.pressure.timeStamp);
00058     ToDoQ::queuePut(this);
00059     backToNOP();
00060 }