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emg
Dependencies: HIDScope MODSERIAL mbed-dsp mbed TouchButton
Fork of test by
main.cpp
- Committer:
- s1340735
- Date:
- 2014-10-27
- Revision:
- 24:094e719f38f3
- Parent:
- 23:17306496ea67
- Child:
- 25:093794ba9237
File content as of revision 24:094e719f38f3:
#include "mbed.h" #include "HIDScope.h" #include "MODSERIAL.h" #include "arm_math.h" MODSERIAL pc(USBTX,USBRX); HIDScope scope(4); AnalogIn emgB(PTB1); //biceps AnalogIn emgT(PTB2); //tricep //*** OBJECTS *** //bicep uint16_t emg_valueB; float emg_value_f32B; float filtered_emgB; float drempelwaardeB1, drempelwaardeB2, drempelwaardeB3;//B1=snelheidsstand 1, B2=snelheidsstand 2, B3=snelheidsstand 3 int yB1, yB2, yB3; float B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, B16, B17, B18, B19, B20, B21, B22, B23, B24, B25, B26, B27, B28, B29, MOVAVG_B; //moving average objects float B30, B31, B32, B33, B34, B35, B36, B37, B38, B39, B40, B41, B42, B43, B44, B45, B46, B47, B48, B49, B50, B51, B52, B53, B54, B55, B56, B57, B58, B59; int snelheidsstand; //tricep uint16_t emg_valueT; float emg_value_f32T; float filtered_emgT; float drempelwaardeT; int yT1, yT2; float T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29,MOVAVG_T; //moving average objects float MOVAVG_Positie1, MOVAVG_Positie2; int positie; //*** FILTERS *** arm_biquad_casd_df1_inst_f32 notchT; arm_biquad_casd_df1_inst_f32 notchB; //constants for 50Hz float notch_const[]= {0.5857841106784856, -1.3007020142696517e-16, 0.5857841106784856, 1.3007020142696517e-16, -0.17156822135697122}; //{a0 a1 a2 -b1 -b2} float notch_states[4]; arm_biquad_casd_df1_inst_f32 lowpassT; arm_biquad_casd_df1_inst_f32 lowpassB; //constants for 60Hz lowpass float lowpass_const[] = {0.39133426347022965, 0.7826685269404593, 0.39133426347022965, -0.3695259524151476, -0.19581110146577096};//{a0 a1 a2 -b1 -b2} van online calculator float lowpass_states[4]; arm_biquad_casd_df1_inst_f32 highpassT; arm_biquad_casd_df1_inst_f32 highpassB; //constants for 20Hz highpass float highpass_const[] = {0.6389437261127494, -1.2778874522254988, 0.6389437261127494, 1.1429772843080923, -0.41279762014290533};//{a0 a1 a2 -b1 -b2} float highpass_states[4]; // *** TRICEPS en BICEPS EMG *** void Triceps() { //Triceps lezen emg_valueT = emgT.read_u16(); emg_value_f32T = emgT.read(); //Triceps filteren arm_biquad_cascade_df1_f32(¬chT, &emg_value_f32T, &filtered_emgT, 1); arm_biquad_cascade_df1_f32(&lowpassT, &filtered_emgT, &filtered_emgT, 1 ); filtered_emgT = fabs(filtered_emgT); arm_biquad_cascade_df1_f32(&highpassT, &filtered_emgT, &filtered_emgT, 1 ); filtered_emgT = fabs(filtered_emgT); //Triceps moving average T0=filtered_emgT*100; MOVAVG_T=T0*0.03333+T1*0.03333+T2*0.03333+T3*0.03333+T4*0.03333+T5*0.03333+T6*0.03333+T7*0.03333+T8*0.03333+T9*0.03333+T10*0.03333+T11*0.03333+T12*0.03333+T13*0.03333+T14*0.03333+T15*0.03333+T16*0.03333+T17*0.03333+T18*0.03333+T19*0.03333+T20*0.03333+T21*0.03333+T22*0.03333+T23*0.03333+T24*0.03333+T25*0.03333+T26*0.03333+T27*0.03333+T28*0.03333+T29*0.03333; T29=T28; T28=T27; T27=T26; T26=T25; T25=T24; T24=T23; T23=T22; T22=T21; T21=T20; T20=T19; T19=T18; T18=T17; T17=T16; T16=T15; T15=T14; T14=T13; T13=T12; T12=T11; T11=T10; T10=T9; T9=T8; T8=T7; T7=T6; T6=T5; T5=T4; T4=T3; T3=T2; T2=T1; T1=T0; //sturen naar scherm (Realterm) pc.printf("%f\r\n",MOVAVG_T); //sturen naar HID Scope scope.set(0,emg_valueT); //ruwe data scope.set(1,filtered_emgT); //filtered scope.send(); } void Biceps() { //Biceps lezen emg_valueB = emgB.read_u16(); // read direct ADC result, converted to 16 bit integer (0..2^16 = 0..65536 = 0..3.3V) emg_value_f32B = emgB.read(); //Biceps filteren arm_biquad_cascade_df1_f32(¬chB, &emg_value_f32B, &filtered_emgB, 1 ); arm_biquad_cascade_df1_f32(&lowpassB, &filtered_emgB, &filtered_emgB, 1 ); filtered_emgB = fabs(filtered_emgB); arm_biquad_cascade_df1_f32(&highpassB, &filtered_emgB, &filtered_emgB, 1 ); filtered_emgB = fabs(filtered_emgB); //Biceps moving average B0=filtered_emgB*1000; MOVAVG_B=B0*0.01667+B1*0.01667+B2*0.01667+B3*0.01667+B4*0.01667+B5*0.01667+B6*0.01667+B7*0.01667+B8*0.01667+B9*0.01667+B10*0.01667+B11*0.01667+B12*0.01667+B13*0.01667+B14*0.01667+B15*0.01667+B16*0.01667+B17*0.01667+B18*0.01667+B19*0.01667+B20*0.01667+B21*0.01667+B22*0.01667+B23*0.01667+B24*0.01667+B25*0.01667+B26*0.01667+B27*0.01667+B28*0.01667+B29*0.01667+B30*0.01667+B31*0.01667+B32*0.01667+B33*0.01667+B34*0.01667+B35*0.01667+B36*0.01667+B37*0.01667+B38*0.01667+B39*0.01667+B40*0.01667+B41*0.01667+B42*0.01667+B43*0.01667+B44*0.01667+B45*0.01667+B46*0.01667+B47*0.01667+B48*0.01667+B49*0.01667+B50*0.01667+B51*0.01667+B52*0.01667+B53*0.01667+B54*0.01667+B55*0.01667+B56*0.01667+B57*0.01667+B58*0.01667+B59*0.01667; B59=B58; B58=B57; B57=B56; B56=B55; B55=B54; B54=B53; B53=B52; B52=B51; B51=B50; B50=B48; B49=B49; B48=B47; B47=B46; B46=B45; B45=B44; B44=B43; B43=B42; B42=B41; B41=B40; B40=B39; B39=B38; B38=B37; B37=B36; B36=B35; B35=B34; B34=B33; B33=B32; B32=B31; B31=B30; B30=B29; B29=B28; B28=B27; B27=B26; B26=B25; B25=B24; B24=B23; B23=B22; B22=B21; B21=B20; B20=B19; B19=B18; B18=B17; B17=B16; B16=B15; B15=B14; B14=B13; B13=B12; B12=B11; B11=B10; B10=B9; B9=B8; B8=B7; B7=B6; B6=B5; B5=B4; B4=B3; B3=B2; B2=B1; B1=B0; //sturen naar scherm pc.printf("%f\r\n",MOVAVG_B); //naar HID Scope scope.set(2,emg_valueB); //ruwe data scope.set(3,filtered_emgB); //filtered scope.send(); } // *** MAIN *** int main() { pc.baud(115200); //bepaling van positie met triceps 1 Ticker log_timerT1; arm_biquad_cascade_df1_init_f32(¬chT,1,notch_const,notch_states); arm_biquad_cascade_df1_init_f32(&lowpassT,1,lowpass_const,lowpass_states); arm_biquad_cascade_df1_init_f32(&highpassT,1,highpass_const,highpass_states); log_timerT1.attach(Triceps, 0.005); wait(5); log_timerT1.detach(); //MOVAVG_T=MOVAVG_Positie1; // positie van batje met behulp van Triceps drempelwaardeT=0.1; if (MOVAVG_T >= drempelwaardeT) { yT1=1; //bepaling van positie met tricep 2 Ticker log_timerT2; arm_biquad_cascade_df1_init_f32(¬chT,1,notch_const,notch_states); arm_biquad_cascade_df1_init_f32(&lowpassT,1,lowpass_const,lowpass_states); arm_biquad_cascade_df1_init_f32(&highpassT,1,highpass_const,highpass_states); log_timerT2.attach(Triceps, 0.005); wait(5); log_timerT2.detach(); //MOVAVG_T=MOVAVG_Positie2; if (MOVAVG_T >= drempelwaardeT) { yT2=1; } else { yT2=0; } } else { yT1=0; } //*** INPUT MOTOR 2 *** positie=yT1+yT2; //controle positie op scherm if (positie==0) { pc.printf("Motor 2 gaat naar stand 0\n"); } else { if (positie==1) { pc.printf("Motor 2 gaat naar stand 1\n"); } else { if (positie==2) { pc.printf("Motor 1 beweegt met snelheid 2\n"); } } } wait(5); Ticker log_timerB; arm_biquad_cascade_df1_init_f32(¬chB,1,notch_const,notch_states); arm_biquad_cascade_df1_init_f32(&lowpassB,1,lowpass_const,lowpass_states); arm_biquad_cascade_df1_init_f32(&highpassB,1,highpass_const,highpass_states); log_timerB.attach(Biceps,0.005); wait(5);//log_timerB wordt 2000 keer uitgevoerd log_timerB.detach(); //bepaling van snelheidsstand met biceps drempelwaardeB1=2; drempelwaardeB2=5; drempelwaardeB3=10; if (MOVAVG_B >= drempelwaardeB1) { yB1=1; if (MOVAVG_B >= drempelwaardeB2) { yB2=1; if (MOVAVG_B >= drempelwaardeB3) { yB3=1; } else { yB3=0; } } else { yB2=0; } } else { yB1=0; } //*** INPUT MOTOR 1 *** snelheidsstand=yB1+yB2+yB3; //controle snelheidsstand op scherm if (snelheidsstand==0) { pc.printf("Motor 1 beweegt niet\n"); } else { if (snelheidsstand==1) { pc.printf("Motor 1 beweegt met snelheid 1\n"); } else { if (snelheidsstand==2) { pc.printf("Motor 1 beweegt met snelheid 2\n"); } else { if (snelheidsstand==3) { pc.printf("Motor 1 beweegt met snelheid 3\n"); } } } } }