statistics.h

00001 #include "mbed.h"
00002 
00003 #ifndef STATISTICS_H_
00004 #define STATISTICS_H_
00005 
00006 #define  INIT_STATISTICS_NUMBER  32767
00007 #define  DELTA_HUMIDITY  6
00008 #define  DELTA_TEMPERATURE  1
00009 #define  TEMPERATURE_MULTIPLIER  10
00010 
00011 /**************************************************************************************************************************
00012 ************************** User class for calculate statistics for last 24 hrs ********************************************
00013 **************************************************************************************************************************/
00014 
00015 class Statistics
00016 {
00017 public:
00018     // xxxx24hrs[][] arrays contains all 24-hrs statistics data:
00019     // 1. xxxx24hrs[0][0...287] - Average values calculated for each five-minute interval
00020     // 2. xxxx24hrs[1][0...287] - Minimums calculated for each five-minute interval
00021     // 2. xxxx24hrs[2][0...287] - Maximums calculated for each five-minute interval
00022     // p.s. there are 288 five-minute intervals in 24 hours
00023 
00024     short int humidity24hrs[3][288];
00025     short int temperature24hrs[3][288];
00026 
00027     uint64_t UpdateStatistics(float humidity, float temperature, uint64_t seconds, uint64_t changeSecondsOffset);
00028     void InitValues(float humidity, float temperature);
00029     
00030 private:
00031     
00032     // functions called every second to update average value, minimum and maximum in current five-minute interval
00033     void CalculateTemperature(float temperature, short int secondsIn5min);
00034     void CalculateHumididty(float humidity, short int secondsIn5min);
00035     // function called every 5 minutes to add new value to xxxx24hrs[][] arrays
00036     uint64_t Update24hrsData(uint64_t changeSecondsOffset);
00037     
00038     // counter of five-minute intervals (0...287)
00039     short int Counter24hrs;
00040     // values for calculations "inside" five-minute interval
00041     short int humidity5min[300], temperature5min[300];
00042     int humidity5minAverage, temperature5minAverage;
00043     int humidity5minSum, temperature5minSum;
00044     short int humidity5minMax, humidity5minMin, temperature5minMax, temperature5minMin;
00045 };
00046 
00047 #endif /* STATISTICS_H_ */