Sherif Azmy
SDP Code
Dependencies: BufferedSoftSerial GPRS SDP mbed
Revision 0:da51bdd3cff1, committed 2017-01-09
- Comitter:
- Zushauque
- Date:
- Mon Jan 09 11:04:12 2017 +0000
- Commit message:
- last
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BufferedSoftSerial.lib Mon Jan 09 11:04:12 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/Sissors/code/BufferedSoftSerial/#671a6724ce79
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/GPRS.lib Mon Jan 09 11:04:12 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/Seeed/code/GPRS/#1278e9dde24e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MODGPS.lib Mon Jan 09 11:04:12 2017 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/Zushauque/code/SDP/#0f930a977e25
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Jan 09 11:04:12 2017 +0000
@@ -0,0 +1,308 @@
+#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;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jan 09 11:04:12 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/faff56e089b2 \ No newline at end of file