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Dependencies: PID QEI SB1602E mbed-rtos mbed
Fork of
PreHeater
by 
Kazu Zamasu
Revision 9:3e9f4d44b4b5, committed 2015-07-04
- Comitter:
- Hapi_Tech
- Date:
- Sat Jul 04 21:22:13 2015 +0000
- Parent:
- 8:984dff005969
- Commit message:
- Rev1;
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Fri Jul 03 11:51:51 2015 +0000
+++ b/main.cpp Sat Jul 04 21:22:13 2015 +0000
@@ -41,7 +41,7 @@
#define P 0.1 //propotional band
#define I 1.5 //Integral
#define D 1.0 //Devide
-#define RATE 0.1 //update time sec
+#define RATE 0.05 //update time sec
#define InitialSP 30.0 // Boot Setpoint initial temeprature
PID TIC(P, I, D, RATE);
@@ -130,10 +130,22 @@
RunPB.rise(&runmode);
Thread thread(cal_temp);
rtostime = RATE * 1000;
+
+/* Initial startup bias culcuration */
+ if ((temp_sv_input - temp_pv) >= 50) {
+ Bias = 50.0;
+ }else if ((temp_sv_input - temp_pv) >= 30){
+ Bias = 30.0;
+ }else if ((temp_sv_input - temp_pv) >= 20){
+ Bias = 20.0;
+ } else {
+ Bias = 0.0;
+ }
+
while (1) {
/*PID control*/
-#define SV_LL 0.0 //PID setpoint % value for lo limit
-#define SV_HL 100.0 //PID setpoint % value for high limit
+#define SV_LL 30.0 //PID setpoint TempC value for lo limit
+#define SV_HL 100.0 //PID setpoint TempC value for high limit
TIC.setInputLimits(SV_LL, SV_HL);
#define OV_LL 0.0 //PID calcurate output value 0.0 = 0%
#define OV_HL 100.0 //PID calcurate output value 1.0 = 100%