takuya okada
疑似的な脈波・呼吸・いびきを出力するプログラムです。
Revision 4:17cfeca0673c, committed 2017-01-26
- Comitter:
- woodbed
- Date:
- Thu Jan 26 09:33:27 2017 +0000
- Parent:
- 3:2f4d9f3a4618
- Commit message:
- AM???????
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
diff -r 2f4d9f3a4618 -r 17cfeca0673c main.cpp
--- a/main.cpp Tue Dec 13 08:44:01 2016 +0000
+++ b/main.cpp Thu Jan 26 09:33:27 2017 +0000
@@ -25,10 +25,10 @@
int sample_dt = 100; //microsec 10kHz
float hb_carr_freq = 8.7; //Hz
float hb_mod_freq = 1; //Hz
-float hb_carr_level = 0.083; //min=0 max=0.5 0.5以上ではMOD 50%以上で振幅が飽和する
-float hb_mod_ratio = 63; //0-100 %
+float hb_carr_level = 0.5; //min=0 max=0.5 0.5以上ではMOD 50%以上で振幅が飽和する 0.083
+float hb_mod_ratio = 100; //0-100 % 63%
float resp_freq = 0.3; //Hz
-float resp_level = 0.56; //min=0 max=1
+float resp_level = 0.56; //min=0 max=1 0.56
float snore_freq = 150; //Hz
float snore_level = 0.23; //min=0 max=1
int snore_oncycle = 10000; //On Time = snore_oncycle * sample_dt, snore_oncycle < snore_allcycle;
@@ -48,28 +48,19 @@
float hb_carr_v_samplepoint = 0;
//HB_mod
-float hb_modp_period = 1000000*1/(hb_carr_freq + hb_mod_freq);
-float hb_modp_n = 0;
-float hb_modp_n_sample = 0; //The maximum number of sampling points in the signal
-float hb_modp_tend = 0; //The remainder of sampling points in the signal
-float hb_modp_tstart = 0; //start offset of sampling time
-float hb_modp_t_samplepoint = 0;
-float hb_modp_table_dt = hb_modp_period/256;
-float hb_modp_n_samplepoint = 0;
-float hb_modp_v_samplepoint = 0;
-
-float hb_modm_period = 1000000*1/(hb_carr_freq - hb_mod_freq);
-float hb_modm_n = 0;
-float hb_modm_n_sample = 0; //The maximum number of sampling points in the signal
-float hb_modm_tend = 0; //The remainder of sampling points in the signal
-float hb_modm_tstart = 0; //start offset of sampling time
-float hb_modm_t_samplepoint = 0;
-float hb_modm_table_dt = hb_modm_period/256;
-float hb_modm_n_samplepoint = 0;
-float hb_modm_v_samplepoint = 0;
+float hb_mod_period = 1000000*1/hb_mod_freq;
+float hb_mod_n = 0;
+float hb_mod_n_sample = 0; //The maximum number of sampling points in the signal
+float hb_mod_tend = 0; //The remainder of sampling points in the signal
+float hb_mod_tstart = 0; //start offset of sampling time
+float hb_mod_t_samplepoint = 0;
+float hb_mod_table_dt = hb_mod_period/256;
+float hb_mod_n_samplepoint = 0;
+float hb_mod_v_samplepoint = 0;
float hb_mod_ra = hb_mod_ratio * 0.01;
float hb_signal = 0;
+float mod_signal = 0;
//RESP
float resp_period = 1000000*1/resp_freq; //microSec
@@ -100,6 +91,11 @@
int pwidth_2 = 0;
int pwidth_3 = 0;
+// Debug use only ----
+int dbcount = 0;
+
+// End of debug use ----
+
//Signal Culcurate
void signal_culc(){
@@ -124,48 +120,40 @@
hb_carr_n++;
}
//HB_mod
-//Acosωct+(Ama/2)cos(ωc+ωm)t+(Ama/2)cos(ωc-ωm)t Acosωct = fcarr(t),ma = modulation ratio,
- hb_modp_n_sample = (hb_modp_period - hb_modp_tstart) / sample_dt;
- hb_modp_tend = fmod((hb_modp_period - hb_modp_tstart) , sample_dt);
- if(hb_modp_tend == 0){
- hb_modp_n_sample = hb_modp_n_sample-1;
+//A(1+macosωmt)*cosωct Acosωct = fcarr(t),ma = modulation ratio,
+ hb_mod_n_sample = (hb_mod_period - hb_mod_tstart) / sample_dt;
+ hb_mod_tend = fmod((hb_mod_period - hb_mod_tstart) , sample_dt);
+ if(hb_mod_tend == 0){
+ hb_mod_n_sample = hb_mod_n_sample-1;
}
- hb_modp_t_samplepoint = hb_modp_tstart + sample_dt * hb_modp_n; //time of sampling point
- hb_modp_n_samplepoint = hb_modp_t_samplepoint / hb_modp_table_dt;
- if(hb_modp_n_samplepoint >= 256){
- hb_modp_n_samplepoint = 0;
+ hb_mod_t_samplepoint = hb_mod_tstart + sample_dt * hb_mod_n; //time of sampling point
+ hb_mod_n_samplepoint = hb_mod_t_samplepoint / hb_mod_table_dt;
+ if(hb_mod_n_samplepoint >= 256){
+ hb_mod_n_samplepoint = 0;
}
- hb_modp_v_samplepoint = hb_mod_ra*(coswave[(int)hb_modp_n_samplepoint]);
- if(hb_modp_n > (int)hb_modp_n_sample) {
- hb_modp_n =0;
- hb_modp_tstart = sample_dt - hb_modp_tend;
+ hb_mod_v_samplepoint = hb_mod_ra*(coswave[(int)hb_mod_n_samplepoint]);
+ if(hb_mod_n > (int)hb_mod_n_sample) {
+ hb_mod_n =0;
+ hb_mod_tstart = sample_dt - hb_mod_tend;
}
else {
- hb_modp_n++;
- }
-
- hb_modm_n_sample = (hb_modm_period - hb_modm_tstart) / sample_dt;
- hb_modm_tend = fmod((hb_modm_period - hb_modm_tstart) , sample_dt);
- if(hb_modm_tend == 0){
- hb_modm_n_sample = hb_modm_n_sample-1;
- }
- hb_modm_t_samplepoint = hb_modm_tstart + sample_dt * hb_modm_n; //time of sampling point
- hb_modm_n_samplepoint = hb_modm_t_samplepoint / hb_modm_table_dt;
- if(hb_modm_n_samplepoint >= 256){
- hb_modm_n_samplepoint = 0;
- }
- hb_modm_v_samplepoint = hb_mod_ra*(coswave[(int)hb_modm_n_samplepoint]);
- if(hb_modm_n > (int)hb_modm_n_sample) {
- hb_modm_n =0;
- hb_modm_tstart = sample_dt - hb_modm_tend;
- }
- else {
- hb_modm_n++;
+ hb_mod_n++;
}
-//HB_AM MOD
- hb_signal = hb_carr_level*(hb_carr_v_samplepoint + (0.5*hb_modp_v_samplepoint)+(0.5*hb_modm_v_samplepoint))+0.5;//0-1 -> 0V-3.3V
-
+//HB_AM MOD
+
+ hb_signal = 0.5*(hb_carr_level*(1+hb_mod_v_samplepoint)*hb_carr_v_samplepoint)+0.5;//0-1 -> 0V-3.3V
+
+//debug part
+/*
+ if(dbcount>=100){
+ pc.printf("%f, %f, %f\n",hb_signal,mod_signal,hb_mod_v_samplepoint);
+ dbcount = 0;
+ }
+ dbcount++;
+*/
+//end debug part
+
//RESP section
resp_n_sample = (resp_period - resp_tstart) / sample_dt;
resp_tend = fmod((resp_period - resp_tstart) , sample_dt);
@@ -178,7 +166,7 @@
resp_n_samplepoint = 0;
}
resp_v_samplepoint = resp_level*(coswave[(int)resp_n_samplepoint]);
- resp_signal = resp_v_samplepoint+0.5; //0-1 -> 0V-3.3V
+ resp_signal = 0.5*resp_v_samplepoint+0.5; //0-1 -> 0V-3.3V
if(resp_n > (int)resp_n_sample) {
resp_n =0;
resp_tstart = sample_dt - resp_tend;
@@ -222,7 +210,7 @@
snore_cycle = 0;
}
}
- snore_signal = snore_v_samplepoint+0.5; //0-1 -> 0V-3.3V
+ snore_signal = 0.5*snore_v_samplepoint+0.5; //0-1 -> 0V-3.3V
//PWM Output Pulse width
pwidth_1 = hb_signal * sample_dt;
@@ -297,47 +285,29 @@
hb_carr_n_samplepoint = 0;
hb_carr_v_samplepoint = 0;
pc.printf("carrf = %f\n",hb_carr_table_dt);
- hb_modp_period = 1000000*1/(hb_carr_freq + hb_mod_freq);
- hb_modp_n = 0;
- hb_modp_n_sample = 0; //The maximum number of sampling points in the signal
- hb_modp_tend = 0; //The remainder of sampling points in the signal
- hb_modp_tstart = 0; //start offset of sampling time
- hb_modp_t_samplepoint = 0;
- hb_modp_table_dt = hb_modp_period/256;
- hb_modp_n_samplepoint = 0;
- hb_modp_v_samplepoint = 0;
- hb_modm_period = 1000000*1/(hb_carr_freq - hb_mod_freq);
- hb_modm_n = 0;
- hb_modm_n_sample = 0; //The maximum number of sampling points in the signal
- hb_modm_tend = 0; //The remainder of sampling points in the signal
- hb_modm_tstart = 0; //start offset of sampling time
- hb_modm_t_samplepoint = 0;
- hb_modm_table_dt = hb_modm_period/256;
- hb_modm_n_samplepoint = 0;
- hb_modm_v_samplepoint = 0;
+ hb_mod_period = 1000000*1/hb_mod_freq;
+ hb_mod_n = 0;
+ hb_mod_n_sample = 0; //The maximum number of sampling points in the signal
+ hb_mod_tend = 0; //The remainder of sampling points in the signal
+ hb_mod_tstart = 0; //start offset of sampling time
+ hb_mod_t_samplepoint = 0;
+ hb_mod_table_dt = hb_mod_period/256;
+ hb_mod_n_samplepoint = 0;
+ hb_mod_v_samplepoint = 0;
}
else if(strcmp(scan,"modf")==0){
pc.scanf("%f",¶);
hb_mod_freq = para;
- hb_modp_period = 1000000*1/(hb_carr_freq + hb_mod_freq);
- hb_modp_n = 0;
- hb_modp_n_sample = 0; //The maximum number of sampling points in the signal
- hb_modp_tend = 0; //The remainder of sampling points in the signal
- hb_modp_tstart = 0; //start offset of sampling time
- hb_modp_t_samplepoint = 0;
- hb_modp_table_dt = hb_modp_period/256;
- hb_modp_n_samplepoint = 0;
- hb_modp_v_samplepoint = 0;
- hb_modm_period = 1000000*1/(hb_carr_freq - hb_mod_freq);
- hb_modm_n = 0;
- hb_modm_n_sample = 0; //The maximum number of sampling points in the signal
- hb_modm_tend = 0; //The remainder of sampling points in the signal
- hb_modm_tstart = 0; //start offset of sampling time
- hb_modm_t_samplepoint = 0;
- hb_modm_table_dt = hb_modm_period/256;
- hb_modm_n_samplepoint = 0;
- hb_modm_v_samplepoint = 0;
- pc.printf("modf = %f\n",hb_modm_table_dt);
+ hb_mod_period = 1000000*1/hb_mod_freq;
+ hb_mod_n = 0;
+ hb_mod_n_sample = 0; //The maximum number of sampling points in the signal
+ hb_mod_tend = 0; //The remainder of sampling points in the signal
+ hb_mod_tstart = 0; //start offset of sampling time
+ hb_mod_t_samplepoint = 0;
+ hb_mod_table_dt = hb_mod_period/256;
+ hb_mod_n_samplepoint = 0;
+ hb_mod_v_samplepoint = 0;
+ pc.printf("modf = %f\n",hb_mod_table_dt);
hb_carr_n = 0;
hb_carr_n_sample = 0; //The maximum number of sampling points in the signal
hb_carr_tend = 0; //The remainder of sampling points in the signal
@@ -422,7 +392,7 @@
//Make cos wave
int i;
for(i=0;i<=255;i++){
- coswave[i]=0.5*(cos(2.0*3.1415*i/256));
+ coswave[i]=cos(2.0*3.1415*i/256); //2017/1/5 0.5*(cos(2.0*3.1415*i/256));
}
i = 0;