SDP Code
Dependencies: BufferedSoftSerial GPRS SDP mbed
main.cpp
- Committer:
- Zushauque
- Date:
- 2017-01-09
- Revision:
- 0:da51bdd3cff1
File content as of revision 0:da51bdd3cff1:
#include "mbed.h" #include "GPS.h" #include "gprs.h" #include "BufferedSoftSerial.h" #include "gprs.h" Serial pc(USBTX, USBRX); GPS uGPS(p13, p14); Serial uBP_RN41(p9,p10); BufferedSoftSerial uBP(p19,p18); GPRS uGSM(p28,p27,9600,"66426640"); //Power Management Variables DigitalOut pBP(p5); //For toggling the BP power DigitalOut BPbutton(p25);//For instigating BP measurement DigitalOut pRN41(p6);//For toggling the RN41's power. DigitalOut pGSM(p7);//For toggling the GSM's power. DigitalOut GSM_pwk(p21); //For using the GSM power key (doesn't turn off Power LED, waste of power). DigitalOut pGPS(p8); //For toggling the GPS's power. DigitalOut Buzzer(p23); DigitalOut LED(p24); //GPS Variables double lat, hlat=25.289536; //default longitude and latitude to Hamad Medical Corporation double lon, hlon=51.522364; GPS_Time t; //Structure has: hour, minute, second, day, month, year in it //BP Variables char BP[15]={0}; //Buffer for Blood Pressure Reading int SYS=120,DIA=80; int hSYS=0, hDIA=0; //History of Systolic and Diastolic //RN41-Nonin Variables char FirstBit=129,FalsePulse=5,SpO2=99,LastBit=100; int HR=70; //Power Management Functions void ToggleBP(bool state); void ToggleRN41(bool state); void ToggleGSM(bool state); void ToggleGPS(bool state); //GPS Functions void UpdateGPS(); bool CheckTime(); //BP Functions void InstigateReading(); void UpdateBP(); //RN41-Nonin Functions void initializeRN41(); void UpdateNonin(); //Function to update the measurements //QEWS variables & function int HRScore,SPScore,BPScore,QEWS_Score; void QEWS(); //GSM Variables char message[160]; //Length of SMS message is 160. int msglength=0; void FormatData(); void SendMessageGSM(); //MAIN int main(){ // Define Baudrates pBP=0; //For toggling the BP power BPbutton=1;//For instigating BP measurement pRN41=0;//For toggling the RN41's power. pGSM=0;//For toggling the GSM's power. GSM_pwk=0; //For using the GSM power key (doesn't turn off Power LED, waste of power). pGPS=0; //For toggling the GPS's power. uBP_RN41.baud(9600); while(1){ wait(3); UpdateGPS(); while(!CheckTime()); UpdateNonin(); UpdateBP(); QEWS(); FormatData(); if(QEWS_Score>=1) SendMessageGSM(); } } // Power Functions void ToggleBP(bool state){ if(state){ pRN41=0; wait(2); pBP=1; wait(2); } if(!state){ pRN41=0; wait(2); pBP=0; wait(2); } } void ToggleRN41(bool state){ if(state){ pBP=0; wait(2); pRN41=1; wait(2); } if(!state){ pRN41=0; wait(2); pBP=0; wait(2); } } void ToggleGSM(bool state){ if(state){ pGSM=1; wait(2); GSM_pwk=0; wait(1); GSM_pwk=1; wait(10); } if(!state){ GSM_pwk=0; wait(1); GSM_pwk=1; wait(5); pGSM=0; } } void ToggleGPS(bool state){ if(state){ pGPS=1; wait(5); //Waiting for 2 seconds. But is it enough to let the GPS module acquire GPS? } if(!state){ pGPS=0; wait(2); } } //GPS Functions void UpdateGPS(){ ToggleGPS(1); //Keep updating over the course of 20 seconds, to get a sure location. for(int i=0; i<20; i++){ lat=uGPS.latitude(); lon=uGPS.longitude(); uGPS.timeNow(&t); pc.printf("before history lat:%f, lon:%f \n\r",lat,lon); pc.printf("Time: %d, %d, %d \n\r", t.hour, t.minute,t.second); wait(10); } pGPS=0; if( (lat <=0) && (lon <= 0)){ // if there is an error in the location (i.e. not in Qatar) then it will use the last known location lat=hlat; // take the last known location. lon=hlon; } pc.printf("after history lat:%f, lon:%f \n\r",lat,lon); hlat=lat; hlon=lon; ToggleGPS(0); } //RN41 Functions void UpdateNonin(){ ToggleRN41(1); wait(10); if(uBP_RN41.readable()){ FirstBit =uBP_RN41.getc(); wait(0.5); FalsePulse=uBP_RN41.getc(); wait(0.5); HR= FalsePulse | ((FirstBit&=0x03)<<7); wait(0.5); SpO2=uBP_RN41.getc(); wait(0.5); LastBit=uBP_RN41.getc(); wait(0.5); pc.printf("SPO2: %d %d %d %d %d\n\r", FirstBit,FalsePulse,HR,SpO2,LastBit); } ToggleRN41(0); } //BP Functions void InstigateReading(){ wait(5); BPbutton=0; wait(1); BPbutton=1; wait(2); wait(70); BPbutton=0;wait(1); BPbutton=1; } void UpdateBP(){ ToggleBP(1); uBP.baud(9600); SYS=0; DIA=0; for(int i=0;i<3;i++){//Beep 3 times to warn the patient that the device will start taking measurement Buzzer=1;LED=1;wait(0.5); Buzzer=0;LED=0;wait(0.5); } LED=1; InstigateReading(); while(1){ if(uBP.readable()){ for(int i=0; i<15; i++) BP[i]=uBP.getc(); //Acquire 15 bytes } if(BP[14]==0x0A){ //Transmission is okay // Hundreds Tens Units SYS=((BP[1]-0x30)*100)+ ((BP[2]-0x030)*10) + ((BP[3]-0x30)*1); DIA=((BP[6]-0x30)*100)+ ((BP[7]-0x030)*10) + ((BP[8]-0x30)*1); pc.printf("BP Before History: %d %d\n\r",SYS,DIA); hSYS=SYS; hDIA=DIA; //Recording values, for history. pc.printf("BP After History: %d %d\n\r",SYS,DIA); break; } } //If values are unchanged, use the last stored in history if(SYS==0 && DIA==0){ SYS=hSYS; DIA=hDIA; } LED=0; ToggleBP(0); } void QEWS(){ //Calculating Oxygen Saturation Score (SYS >= 110 && SYS <= 179) ? BPScore=0: BPScore=BPScore; ((SYS >= 90 && SYS <=109)||(SYS >= 180 && SYS <= 199)) ? BPScore=1: BPScore=BPScore; ((SYS >= 71 && SYS <=89)||SYS >= 200) ? BPScore=2: BPScore=BPScore; (SYS < 70) ? BPScore=3: BPScore=BPScore; //Calculating Oxygen Saturation Score (SpO2>=95) ? SPScore=0: SPScore=SPScore; (SpO2>=93 && SpO2<=95) ? SPScore=1: SPScore=SPScore; (SpO2>=90 && SpO2<=92) ? SPScore=2: SPScore=SPScore; (SpO2<=90) ? SPScore=3: SPScore=SPScore; //Calculating Heart Rate Score ((HR >= 51) && (HR <= 100)) ? HRScore=0: HRScore=HRScore; ((HR >= 41 && HR <=50)||(HR >= 101 && HR <= 110)) ? HRScore=1: HRScore=HRScore; ((HR >= 31 && HR <=40)||(HR >= 111 && HR <= 129)) ? HRScore=2: HRScore=HRScore; ((HR < 31 )|| (HR > 129)) ? HRScore=3: HRScore=HRScore; QEWS_Score=HRScore+SPScore+BPScore; } //GSM Functions void FormatData(){ /* This message has a total of 60 characters */ msglength=sprintf(message,"SYS: %d\n\rDIA: %d\n\rHR: %d\n\rSpO2: %d\n\rLAT: %f\n\rLON: %f\n\rQEWS: %d\n\rTIME: %d:%d",SYS,DIA,HR,SpO2,lat,lon,QEWS_Score,t.hour,t.minute); } void SendMessageGSM(){ ToggleGSM(1); wait(10); uGSM.sendSMS("66426640",message); wait(15); ToggleGSM(0); } //CONFIGURATION FUNCTIONS void initializeRN41(){ ToggleRN41(1); //Turn RN41 on. uBP_RN41.printf("$$$"); wait(0.5); // Entering Command Mode uBP_RN41.printf("SR,001C0500D414\r"); wait(0.5); // Setting MAC Address uBP_RN41.printf("SP,681010\r"); wait(0.5); //Setting Pass-key uBP_RN41.printf("SU,96\r"); wait(0.5); //Setting Baudrate to 9600 uBP_RN41.printf("SM,6\r"); wait(0.5); //Setting Mode to Pairing Mode (6) uBP_RN41.printf("R,1\r"); wait(0.5); //Rebooting } bool CheckTime(){ UpdateGPS(); if(t.hour==0 && t.minute==0) return 1; if(t.hour==2 && t.minute==0) return 1; if(t.hour==4 && t.minute==0) return 1; if(t.hour==6 && t.minute==0) return 1; if(t.hour==7 && t.minute==4) return 1; if(t.hour==8 && t.minute==8) return 1; if(t.hour==9 && t.minute==12) return 1; if(t.hour==10 && t.minute==16) return 1; if(t.hour==11 && t.minute==20) return 1; if(t.hour==12 && t.minute==24) return 1; if(t.hour==13 && t.minute==28) return 1; if(t.hour==14 && t.minute==32) return 1; if(t.hour==15 && t.minute==36) return 1; if(t.hour==16 && t.minute==40) return 1; if(t.hour==17 && t.minute==44) return 1; if(t.hour==18 && t.minute==48) return 1; if(t.hour==19 && t.minute==52) return 1; if(t.hour==20 && t.minute==56) return 1; if(t.hour==22 && t.minute==0) return 1; else return 0; }