raheel Ahmed / Mbed 2 deprecated sentinel_clone

Tapton School Project to monitor and log SEN students physiological condition using GSR (conductivity) & Heart Rate and displaying output and logging the data to an SD card

Dependencies:   SMARTGPU2 mbed

DFRobot_Heartrate.cpp@0:0e26bf847b57, 2018-02-09 (annotated)

Committer:
raheel123
Date:
Fri Feb 09 08:34:23 2018 +0000
Revision:
0:0e26bf847b57
Tapton school SENtinel project

Who changed what in which revision?

UserRevisionLine numberNew contents of line
raheel123 0:0e26bf847b57 1 #include "DFRobot_Heartrate.h"
raheel123 0:0e26bf847b57 2
raheel123 0:0e26bf847b57 3 #define debug_ 1
raheel123 0:0e26bf847b57 4
raheel123 0:0e26bf847b57 5
raheel123 0:0e26bf847b57 6 DigitalIn hrme (p21);
raheel123 0:0e26bf847b57 7 Serial pcu (USBTX, USBRX); // pc's usb tx, rx
raheel123 0:0e26bf847b57 8
raheel123 0:0e26bf847b57 9 unsigned int value[SAMPLE_NUMBER]={0}; ///< Initialize sampling point value
raheel123 0:0e26bf847b57 10 unsigned int valueCount_ = 255;
raheel123 0:0e26bf847b57 11 /*!
raheel123 0:0e26bf847b57 12 * @brief Get a Sample values
raheel123 0:0e26bf847b57 13 *
raheel123 0:0e26bf847b57 14 * @brief Get a Sample values
raheel123 0:0e26bf847b57 15 *
raheel123 0:0e26bf847b57 16 * @return unsigned int
raheel123 0:0e26bf847b57 17 */
raheel123 0:0e26bf847b57 18 unsigned int DFRobot_Heartrate::getValue(unsigned int pin)
raheel123 0:0e26bf847b57 19 {
raheel123 0:0e26bf847b57 20 valueCount_++;
raheel123 0:0e26bf847b57 21 if(valueCount_ >= SAMPLE_NUMBER){
raheel123 0:0e26bf847b57 22 pcu.printf("Resetting counter");
raheel123 0:0e26bf847b57 23 valueCount_ = 0;
raheel123 0:0e26bf847b57 24 }
raheel123 0:0e26bf847b57 25 value[valueCount_] = hrme;
raheel123 0:0e26bf847b57 26 return(value[valueCount_]);
raheel123 0:0e26bf847b57 27
raheel123 0:0e26bf847b57 28 }
raheel123 0:0e26bf847b57 29
raheel123 0:0e26bf847b57 30 /*!
raheel123 0:0e26bf847b57 31 * @brief Get a sample
raheel123 0:0e26bf847b57 32 *
raheel123 0:0e26bf847b57 33 * @brief Get the current location
raheel123 0:0e26bf847b57 34 *
raheel123 0:0e26bf847b57 35 * @return unsigned int
raheel123 0:0e26bf847b57 36 */
raheel123 0:0e26bf847b57 37 unsigned int DFRobot_Heartrate::getCnt(void)
raheel123 0:0e26bf847b57 38 {
raheel123 0:0e26bf847b57 39 return(valueCount_);
raheel123 0:0e26bf847b57 40 }
raheel123 0:0e26bf847b57 41
raheel123 0:0e26bf847b57 42 /*!
raheel123 0:0e26bf847b57 43 * @brief Points to a valid node of the wave rise
raheel123 0:0e26bf847b57 44 *
raheel123 0:0e26bf847b57 45 * @brief When the sampling point value increased 4 times in a row, considered to be a heartbeat
raheel123 0:0e26bf847b57 46 *
raheel123 0:0e26bf847b57 47 * @return char
raheel123 0:0e26bf847b57 48 */
raheel123 0:0e26bf847b57 49
raheel123 0:0e26bf847b57 50 char DFRobot_Heartrate::maxNumber(unsigned int count)
raheel123 0:0e26bf847b57 51 {
raheel123 0:0e26bf847b57 52 unsigned int temp1,temp2;
raheel123 0:0e26bf847b57 53 for(int i=0;i<4;i++){
raheel123 0:0e26bf847b57 54 if(count<i){
raheel123 0:0e26bf847b57 55 temp1 = SAMPLE_NUMBER+count-i;
raheel123 0:0e26bf847b57 56 }else{
raheel123 0:0e26bf847b57 57 temp1 = count-i;
raheel123 0:0e26bf847b57 58 }
raheel123 0:0e26bf847b57 59 if(count<i+1){
raheel123 0:0e26bf847b57 60 temp2 = SAMPLE_NUMBER+(count-1)-i;
raheel123 0:0e26bf847b57 61 }else{
raheel123 0:0e26bf847b57 62 temp2 = (count-1)-i;
raheel123 0:0e26bf847b57 63 }
raheel123 0:0e26bf847b57 64 if(value[temp1]<=value[temp2])return(0);
raheel123 0:0e26bf847b57 65 }
raheel123 0:0e26bf847b57 66 if(valueFlag){
raheel123 0:0e26bf847b57 67 valueFlag=1;
raheel123 0:0e26bf847b57 68 return(0);
raheel123 0:0e26bf847b57 69 }else{
raheel123 0:0e26bf847b57 70 valueFlag=1;
raheel123 0:0e26bf847b57 71 return(1);
raheel123 0:0e26bf847b57 72 }
raheel123 0:0e26bf847b57 73 }
raheel123 0:0e26bf847b57 74
raheel123 0:0e26bf847b57 75 /*!
raheel123 0:0e26bf847b57 76 * @brief Waveform down processing
raheel123 0:0e26bf847b57 77 *
raheel123 0:0e26bf847b57 78 * @brief When the sample values decreased four times in a row, clear the heartbeat
raheel123 0:0e26bf847b57 79 *
raheel123 0:0e26bf847b57 80 * @return void
raheel123 0:0e26bf847b57 81 */
raheel123 0:0e26bf847b57 82
raheel123 0:0e26bf847b57 83 void DFRobot_Heartrate::minNumber(unsigned int count)
raheel123 0:0e26bf847b57 84 {
raheel123 0:0e26bf847b57 85 unsigned int temp1,temp2;
raheel123 0:0e26bf847b57 86 for(int i=0;i<4;i++){
raheel123 0:0e26bf847b57 87 if(count<i){
raheel123 0:0e26bf847b57 88 temp1 = SAMPLE_NUMBER+count-i;
raheel123 0:0e26bf847b57 89 }else{
raheel123 0:0e26bf847b57 90 temp1 = count-i;
raheel123 0:0e26bf847b57 91 }
raheel123 0:0e26bf847b57 92 if(count<i+1){
raheel123 0:0e26bf847b57 93 temp2 = SAMPLE_NUMBER+(count-1)-i;
raheel123 0:0e26bf847b57 94 }else{
raheel123 0:0e26bf847b57 95 temp2 = (count-1)-i;
raheel123 0:0e26bf847b57 96 }
raheel123 0:0e26bf847b57 97 if(value[temp1]>=value[temp2])return;
raheel123 0:0e26bf847b57 98 }
raheel123 0:0e26bf847b57 99 valueFlag = 0;
raheel123 0:0e26bf847b57 100
raheel123 0:0e26bf847b57 101 }
raheel123 0:0e26bf847b57 102
raheel123 0:0e26bf847b57 103
raheel123 0:0e26bf847b57 104 /*!
raheel123 0:0e26bf847b57 105 * @brief Get heart rate value
raheel123 0:0e26bf847b57 106 *
raheel123 0:0e26bf847b57 107 * @brief Sample ten times in a row beating heart rate value is computed
raheel123 0:0e26bf847b57 108 *
raheel123 0:0e26bf847b57 109 * @return unsigned int
raheel123 0:0e26bf847b57 110 */
raheel123 0:0e26bf847b57 111
raheel123 0:0e26bf847b57 112 unsigned int DFRobot_Heartrate::analogGetRate(void)
raheel123 0:0e26bf847b57 113 {
raheel123 0:0e26bf847b57 114
raheel123 0:0e26bf847b57 115 static unsigned int timeFlag;
raheel123 0:0e26bf847b57 116 static unsigned long sampleTime[10];
raheel123 0:0e26bf847b57 117 unsigned long valueTime_;
raheel123 0:0e26bf847b57 118 minNumber(valueCount_);
raheel123 0:0e26bf847b57 119 if(maxNumber(valueCount_)){
raheel123 0:0e26bf847b57 120 nowTim = clock_ms();
raheel123 0:0e26bf847b57 121 unsigned int difTime = nowTim - lastTim;
raheel123 0:0e26bf847b57 122 lastTim = nowTim;
raheel123 0:0e26bf847b57 123
raheel123 0:0e26bf847b57 124 if(difTime>300 || difTime<2000){
raheel123 0:0e26bf847b57 125 sampleTime[timeFlag++] = difTime;
raheel123 0:0e26bf847b57 126 if(timeFlag > 9)timeFlag=0;
raheel123 0:0e26bf847b57 127 }
raheel123 0:0e26bf847b57 128 if(0 == sampleTime[9]){
raheel123 0:0e26bf847b57 129 pcu.printf("Wait for valid data !");
raheel123 0:0e26bf847b57 130 return(0);
raheel123 0:0e26bf847b57 131 }
raheel123 0:0e26bf847b57 132
raheel123 0:0e26bf847b57 133 unsigned int Arrange[10]={0};
raheel123 0:0e26bf847b57 134 for(int i=0;i<10;i++){
raheel123 0:0e26bf847b57 135 Arrange[i] = sampleTime[i];
raheel123 0:0e26bf847b57 136 }
raheel123 0:0e26bf847b57 137 unsigned int Arrange_=0;
raheel123 0:0e26bf847b57 138 for(int i=9;i>0;i--){
raheel123 0:0e26bf847b57 139 for(int j=0;j<i;j++){
raheel123 0:0e26bf847b57 140 if(Arrange[j] > Arrange[j+1]){
raheel123 0:0e26bf847b57 141 Arrange_ = Arrange[j];
raheel123 0:0e26bf847b57 142 Arrange[j] = Arrange[j+1];
raheel123 0:0e26bf847b57 143 Arrange[j+1] = Arrange_;
raheel123 0:0e26bf847b57 144 }
raheel123 0:0e26bf847b57 145 }
raheel123 0:0e26bf847b57 146 }
raheel123 0:0e26bf847b57 147 if((Arrange[7]-Arrange[3])>150){
raheel123 0:0e26bf847b57 148 pcu.printf("Wait for valid data !");
raheel123 0:0e26bf847b57 149 return(0);
raheel123 0:0e26bf847b57 150 }
raheel123 0:0e26bf847b57 151
raheel123 0:0e26bf847b57 152 Arrange_ = 0;
raheel123 0:0e26bf847b57 153 for(int i=3;i<=7;i++){
raheel123 0:0e26bf847b57 154 Arrange_ += Arrange[i];
raheel123 0:0e26bf847b57 155 }
raheel123 0:0e26bf847b57 156
raheel123 0:0e26bf847b57 157 valueTime_ = 300000/Arrange_;///<60*1000*(7-2)
raheel123 0:0e26bf847b57 158 return((unsigned int)valueTime_);
raheel123 0:0e26bf847b57 159 }
raheel123 0:0e26bf847b57 160 return(0);
raheel123 0:0e26bf847b57 161 }
raheel123 0:0e26bf847b57 162
raheel123 0:0e26bf847b57 163 /*!
raheel123 0:0e26bf847b57 164 * @brief Get heart rate value
raheel123 0:0e26bf847b57 165 *
raheel123 0:0e26bf847b57 166 * @brief Sample ten times in a row beating heart rate value is computed
raheel123 0:0e26bf847b57 167 *
raheel123 0:0e26bf847b57 168 * @return unsigned int
raheel123 0:0e26bf847b57 169 */
raheel123 0:0e26bf847b57 170
raheel123 0:0e26bf847b57 171 unsigned int DFRobot_Heartrate::digitalGetRate(void)
raheel123 0:0e26bf847b57 172 {
raheel123 0:0e26bf847b57 173
raheel123 0:0e26bf847b57 174 static unsigned int timeFlag;
raheel123 0:0e26bf847b57 175 static unsigned long sampleTime[10];
raheel123 0:0e26bf847b57 176 unsigned long valueTime_;
raheel123 0:0e26bf847b57 177 unsigned int count_;
raheel123 0:0e26bf847b57 178
raheel123 0:0e26bf847b57 179 if(valueCount_){
raheel123 0:0e26bf847b57 180 count_ = valueCount_-1;
raheel123 0:0e26bf847b57 181 }else{
raheel123 0:0e26bf847b57 182 count_ = SAMPLE_NUMBER-1;
raheel123 0:0e26bf847b57 183 }
raheel123 0:0e26bf847b57 184 if((value[valueCount_]==1)){
raheel123 0:0e26bf847b57 185
raheel123 0:0e26bf847b57 186 nowTim = clock_ms();
raheel123 0:0e26bf847b57 187 unsigned int difTime = nowTim - lastTim;
raheel123 0:0e26bf847b57 188 lastTim = nowTim;
raheel123 0:0e26bf847b57 189 pcu.printf("dif time %d, valueCount_ %d, value[valueCount_] %d\n\r ", difTime, valueCount_, value[valueCount_]);
raheel123 0:0e26bf847b57 190
raheel123 0:0e26bf847b57 191 if(difTime>300 || difTime<2000){
raheel123 0:0e26bf847b57 192 sampleTime[timeFlag++] = difTime;
raheel123 0:0e26bf847b57 193 if(timeFlag > 9)timeFlag=0;
raheel123 0:0e26bf847b57 194 }
raheel123 0:0e26bf847b57 195 if(0 == sampleTime[9]){
raheel123 0:0e26bf847b57 196 pcu.printf("Wait for valid data !");
raheel123 0:0e26bf847b57 197 return(0);
raheel123 0:0e26bf847b57 198 }
raheel123 0:0e26bf847b57 199
raheel123 0:0e26bf847b57 200 unsigned int Arrange[10]={0};
raheel123 0:0e26bf847b57 201 for(int i=0;i<10;i++){
raheel123 0:0e26bf847b57 202 Arrange[i] = sampleTime[i];
raheel123 0:0e26bf847b57 203 }
raheel123 0:0e26bf847b57 204 unsigned int Arrange_=0;
raheel123 0:0e26bf847b57 205 for(int i=9;i>0;i--){
raheel123 0:0e26bf847b57 206 for(int j=0;j<i;j++){
raheel123 0:0e26bf847b57 207 if(Arrange[j] > Arrange[j+1]){
raheel123 0:0e26bf847b57 208 Arrange_ = Arrange[j];
raheel123 0:0e26bf847b57 209 Arrange[j] = Arrange[j+1];
raheel123 0:0e26bf847b57 210 Arrange[j+1] = Arrange_;
raheel123 0:0e26bf847b57 211 }
raheel123 0:0e26bf847b57 212 }
raheel123 0:0e26bf847b57 213 }
raheel123 0:0e26bf847b57 214 if((Arrange[7]-Arrange[3])>120){
raheel123 0:0e26bf847b57 215 pcu.printf("Wait for valid data !");
raheel123 0:0e26bf847b57 216 return(0);
raheel123 0:0e26bf847b57 217 }
raheel123 0:0e26bf847b57 218
raheel123 0:0e26bf847b57 219 Arrange_ = 0;
raheel123 0:0e26bf847b57 220 for(int i=3;i<=7;i++){
raheel123 0:0e26bf847b57 221 Arrange_ += Arrange[i];
raheel123 0:0e26bf847b57 222 }
raheel123 0:0e26bf847b57 223
raheel123 0:0e26bf847b57 224 valueTime_ = 300000/Arrange_;///<60*1000*(7-2)
raheel123 0:0e26bf847b57 225 return((unsigned int)valueTime_);
raheel123 0:0e26bf847b57 226 }
raheel123 0:0e26bf847b57 227 return(0);
raheel123 0:0e26bf847b57 228
raheel123 0:0e26bf847b57 229 }
raheel123 0:0e26bf847b57 230
raheel123 0:0e26bf847b57 231 /*!
raheel123 0:0e26bf847b57 232 * @brief Get heart rate value
raheel123 0:0e26bf847b57 233 *
raheel123 0:0e26bf847b57 234 * @brief Sample ten times in a row beating heart rate value is computed
raheel123 0:0e26bf847b57 235 *
raheel123 0:0e26bf847b57 236 * @return unsigned int
raheel123 0:0e26bf847b57 237 */
raheel123 0:0e26bf847b57 238 unsigned int DFRobot_Heartrate::getRate(void)
raheel123 0:0e26bf847b57 239 {
raheel123 0:0e26bf847b57 240 if(mode_ == DIGITAL_MODE){
raheel123 0:0e26bf847b57 241 return(digitalGetRate());
raheel123 0:0e26bf847b57 242 }else{
raheel123 0:0e26bf847b57 243 return(analogGetRate());
raheel123 0:0e26bf847b57 244 }
raheel123 0:0e26bf847b57 245 }
raheel123 0:0e26bf847b57 246
raheel123 0:0e26bf847b57 247
raheel123 0:0e26bf847b57 248
raheel123 0:0e26bf847b57 249 /******************************************************************************
raheel123 0:0e26bf847b57 250 Copyright (C) <2015> <linfeng>
raheel123 0:0e26bf847b57 251 This program is free software: you can redistribute it and/or modify
raheel123 0:0e26bf847b57 252 it under the terms of the GNU General Public License as published by
raheel123 0:0e26bf847b57 253 the Free Software Foundation, either version 3 of the License, or
raheel123 0:0e26bf847b57 254 (at your option) any later version.
raheel123 0:0e26bf847b57 255 This program is distributed in the hope that it will be useful,
raheel123 0:0e26bf847b57 256 but WITHOUT ANY WARRANTY; without even the implied warranty of
raheel123 0:0e26bf847b57 257 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
raheel123 0:0e26bf847b57 258 GNU General Public License for more details.
raheel123 0:0e26bf847b57 259 You should have received a copy of the GNU General Public License
raheel123 0:0e26bf847b57 260 along with this program. If not, see <http://www.gnu.org/licenses/>.
raheel123 0:0e26bf847b57 261 Contact: Musk.lin@dfrobot.com
raheel123 0:0e26bf847b57 262 ******************************************************************************/
raheel123 0:0e26bf847b57 263
raheel123 0:0e26bf847b57 264
raheel123 0:0e26bf847b57 265
raheel123 0:0e26bf847b57 266