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ConsolTest
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Calculate.cpp
00001 #include "mbed.h" 00002 #include <time.h> 00003 #include <string> 00004 #include <iostream> 00005 #include "Data.h" 00006 00007 //*************defining methods used in this method 00008 void printArray(double array[20], double timesArray[20], int NoOfPins,double speedAvg[20], double timesTotal[20], string date); 00009 void data(int sensor_number, double time, double speed, double timesTotal, double speedAvg); 00010 void reset(int distance, int NoOfPins, string date); 00011 00012 //*********mbed pins********************************* 00013 extern Serial pc; //defines the communication between MBed and pc 00014 DigitalIn sensor[20] = {p5,p6,p7,p8,p9,p10,p11,p12,p13,p14,p15,p16,p17,p18,p19,p20,p21,p22,p23,p24} ; //array of sensors. 00015 DigitalOut led4(LED4); 00016 00017 //********c++ variables******************************* 00018 00019 Timer t; 00020 double timeDiff= 0; //time between 2 sensors 00021 double speed = 0; //instspeed 00022 double avgtime= 0;; 00023 double avgspeed = 0; 00024 double avgdistance = 0; 00025 int bendCounter = 0; 00026 //arrays 00027 double times[20]; //array of the time the sensor is reached .(the size of #pins) 00028 double speeds[20]; //array of inst speeds 00029 double avgSpeeds[20]; //avg speeds 00030 double totalTimes[20]; //total runnning times 00031 00032 00033 int calculate(double distance, int NoOfPins, string date) //run when the pipe is being bent around the former. 00034 { 00035 while(true) //keep doing this 00036 { 00037 int i = 0; //set the pin to 0, starting from the 0th ( first) pin 00038 while( i < NoOfPins) //while we have not reached the last pin 00039 { 00040 while(!sensor[i]) //while the sensor is not broken hold it. 00041 { 00042 if(sensor[i + 1]) //bit of error bypassing - if the next sensor is hit 00043 { 00044 //printf("it skipped sensor % d", i); 00045 led4 = 1; //alerts user that a sensor has been skipped. 00046 i++; //keep going on as normal 00047 00048 } 00049 } 00050 t.start(); //starts the timer once, doesn't do anything next iteration 00051 00052 timeDiff = t.read(); //reads what the timer is currently at. Getting the time between each sensor 00053 t.reset(); //starts the timer again from 0. 00054 times[i] = timeDiff; //adds sensor times to array for logging. This must remain above the calculations for avgdistance to work. 00055 00056 if( i <1 ) //for the first iteration so it prints out 0 instead of getting inf by dividing 0 and getting nan symbols. 00057 { 00058 printf("0\n"); 00059 printf("0\n"); 00060 printf("0\n"); 00061 printf("0\n"); 00062 printf("1\n"); 00063 i++; 00064 } 00065 else //otherwise if it is not the first one do this 00066 { 00067 pc.printf(" timediff: %lf\n", timeDiff); //displays the timediff between each sensor at the top of the GUI 00068 00069 //*****************Inst Speed ************************* 00070 speed = 60* (distance / timeDiff); //instaneous speed between each sensor. Multiplied by 60 to get meters per minute 00071 //*******average speed******************************* 00072 avgdistance = distance * i; //total distance = distance between each sensor multiplied by number of sensors 00073 avgtime = times[1] + times[2] + times[3] + times[4] + times[5] + times[6] + times[7] + times[8] + times[9] +times[10] + times[11] + times[12]+times[13] + times[14] + times[15]+times[16] + times[17] + times[18]+ times[19] ; //total time sum of all times 00074 //gets the total time it has taken. Adds up all the inst speeds. (Could start another timer and read it without resets but I don't think there is a beneficial difference) 00075 pc.printf("avgtime: %f \n", avgtime); //print the average time for the top bit for checking/testing 00076 avgspeed = 60*(avgdistance / avgtime); //multiplied by 60 to get meters per minute 00077 00078 //******send to GUI**************************************** 00079 pc.printf("%f\n", speed); //inst speed printed 00080 pc.printf("%f\n", avgspeed); //avg speed printed 00081 pc.printf("%d \n",i+1); //which sensor it is on printed 00082 //*********add to array************************************* 00083 speeds[i] = speed; //save inst speeds. 00084 avgSpeeds[i] = avgspeed; //save avg speeds 00085 totalTimes[i] = avgtime; //save total times 00086 i++; //move onto next sensor 00087 } 00088 } 00089 00090 printArray(speeds,times,NoOfPins,avgSpeeds,totalTimes, date); //write info to Mbed xl 00091 reset(distance, NoOfPins, date); //reset after all sensors on former have been used. Prepare for it to start from the start again. 00092 } 00093 } 00094 00095 void reset(int distance, int NoOfPins, string date) //reset after all sensors on former have been used. Prepare for it to start from the start again. 00096 { 00097 while ( sensor[0]){ 00098 00099 } 00100 wait_ms(50); //give it some time 00101 bendCounter++; //increment the bendcounter, used in the xl doc to record which bend is which 00102 //*******resets c# display to null************** 00103 pc.printf("\n" ); 00104 pc.printf("\n" ); 00105 pc.printf("\n" ); 00106 pc.printf("\n" ); 00107 pc.printf("%d\n", 0); 00108 00109 //*****8resets arrays to all 0 ************ 00110 std::fill_n(times, 20 , 0); //empty array of times so averaging works 00111 std::fill_n(speeds, 20 , 0); 00112 std::fill_n(avgSpeeds, 20 , 0); 00113 std::fill_n(totalTimes, 20 , 0); 00114 t.reset(); //clock reset 00115 00116 //******start again************ 00117 calculate(distance, NoOfPins, date); //be ready for another bend on same former. 00118 } 00119 00120 void printArray(double array[20], double timesArray[20], int NoOfPins, double speedAvg[20], double timesTotal[20], string date) //for printing arrays to xl doc on the mbed. 00121 { 00122 initialise(bendCounter, date); //used to create the Datalog file header.Should happen once for every bend test. BendCounter is the iteration of the bend 00123 for (int i = 0; i < NoOfPins ; i++) //for every sensor 00124 { 00125 data( i,times[i],speeds[i],timesTotal[i],speedAvg[i]); //printing to Datalog 00126 } 00127 }
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