0,0 → 1,677 |
/* |
This program (files gps.c and gps.h) is free software; you can redistribute it and/or modify |
it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; |
either version 3 of the License, or (at your option) any later version. |
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
GNU General Public License and GNU Lesser General Public License for more details. |
You should have received a copy of GNU General Public License (License_GPL.txt) and |
GNU Lesser General Public License (License_LGPL.txt) along with this program. |
If not, see <http://www.gnu.org/licenses/>. |
|
Please note: All the other files for the project "Mikrokopter" by H.Buss are under the license (license_buss.txt) published by www.mikrokopter.de |
*/ |
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
von Peter Muehlenbrock alias Salvo |
Auswertung der Daten vom GPS im ublox Format |
Hold Modus mit PID Regler |
Rückstuerz zur Basis Funktion |
Stand 14.1.2008 |
|
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
*/ |
#include "main.h" |
#include "math.h" |
//#include "gps.h" |
|
// Defines fuer ublox Messageformat um Auswertung zu steuern |
#define UBLOX_IDLE 0 |
#define UBLOX_SYNC1 1 |
#define UBLOX_SYNC2 2 |
#define UBLOX_CLASS 3 |
#define UBLOX_ID 4 |
#define UBLOX_LEN1 5 |
#define UBLOX_LEN2 6 |
#define UBLOX_CKA 7 |
#define UBLOX_CKB 8 |
#define UBLOX_PAYLOAD 9 |
|
// ublox Protokoll Identifier |
#define UBLOX_NAV_POSUTM 0x08 |
#define UBLOX_NAV_STATUS 0x03 |
#define UBLOX_NAV_VELED 0x12 |
#define UBLOX_NAV_CLASS 0x01 |
#define UBLOX_SYNCH1_CHAR 0xB5 |
#define UBLOX_SYNCH2_CHAR 0x62 |
|
signed int GPS_Nick = 0; |
signed int GPS_Roll = 0; |
short int ublox_msg_state = UBLOX_IDLE; |
static uint8_t chk_a =0; //Checksum |
static uint8_t chk_b =0; |
short int gps_state,gps_sub_state; //Zustaende der Statemachine |
short int gps_updte_flag; |
static long signed gps_reg_x,gps_reg_y; |
static unsigned int rx_len; |
static unsigned int ptr_payload_data_end; |
unsigned int gps_alive_cnt; // Wird bei jedem gueltigen GPS Telegramm hochgezaehlt |
static signed int hdng_2home,dist_2home; //Richtung und Entfernung zur home Position |
static signed gps_tick; //wird bei jedem Update durch das GPS Modul hochgezaehlt |
static short int hold_fast,hold_reset_int; //Flags fuer Hold Regler |
static uint8_t *ptr_payload_data; |
static uint8_t *ptr_pac_status; |
static int dist_flown; |
static unsigned int int_ovfl_cnt; // Zaehler fuer Overflows des Integrators |
static int gps_quiet_cnt; // zaheler fuer GPS Off Time beim Kameraausloesen |
|
|
short int Get_GPS_data(void); |
|
NAV_POSUTM_t actual_pos; // Aktuelle Nav Daten werden hier im ublox Format abgelegt |
NAV_STATUS_t actual_status; // Aktueller Nav Status |
NAV_VELNED_t actual_speed; // Aktueller Geschwindigkeits und Richtungsdaten |
|
GPS_ABS_POSITION_t gps_act_position; // Alle wichtigen Daten zusammengefasst |
GPS_ABS_POSITION_t gps_home_position; // Die Startposition, beim Kalibrieren ermittelt |
GPS_REL_POSITION_t gps_rel_act_position; // Die aktuelle relative Position bezogen auf Home Position |
GPS_REL_POSITION_t gps_rel_hold_position; // Die gespeicherte Sollposition fuer GPS_ Hold Mode |
GPS_REL_POSITION_t gps_rel_start_position; // Die gespeicherte Ausgangsposition fuer GPS_ Home Mode |
|
// Initialisierung |
void GPS_Neutral(void) |
{ |
ublox_msg_state = UBLOX_IDLE; |
gps_state = GPS_CRTL_IDLE; |
gps_sub_state = GPS_CRTL_IDLE; |
actual_pos.status = 0; |
actual_speed.status = 0; |
actual_status.status = 0; |
gps_home_position.status = 0; // Noch keine gueltige Home Position |
gps_act_position.status = 0; |
gps_rel_act_position.status = 0; |
GPS_Nick = 0; |
GPS_Roll = 0; |
gps_updte_flag = 0; |
gps_alive_cnt = 0; |
} |
|
// Home Position sichern falls Daten verfuegbar sind. |
void GPS_Save_Home(void) |
{ |
short int n; |
n = Get_GPS_data(); |
if (n == 0) // Gueltige und aktuelle Daten ? |
{ |
// Neue GPS Daten liegen vor |
gps_home_position.utm_east = gps_act_position.utm_east; |
gps_home_position.utm_north = gps_act_position.utm_north; |
gps_home_position.utm_alt = gps_act_position.utm_alt; |
gps_home_position.status = 1; // Home Position gueltig |
} |
} |
|
// Relative Position zur Home Position bestimmen |
// Rueckgabewert 0= Daten sind aktuell und gueltig. 1= Keine Aenderung. 2= Daten ungueltig |
short int Get_Rel_Position(void) |
{ |
short int n = 0; |
n = Get_GPS_data(); |
if (n >=1) return (n); // nix zu tun, weil keine neue Daten da sind |
if (gps_alive_cnt < 1000) gps_alive_cnt += 600; // Timeoutzaehler. Wird in Motorregler Routine ueberwacht und dekrementiert |
if (gps_home_position.status > 0) //Nur wenn Home Position vorliegt |
{ |
gps_rel_act_position.utm_east = (int) (gps_act_position.utm_east - gps_home_position.utm_east); |
gps_rel_act_position.utm_north = (int) (gps_act_position.utm_north - gps_home_position.utm_north); |
gps_rel_act_position.utm_alt = (int) (gps_act_position.utm_alt - gps_home_position.utm_alt); |
gps_rel_act_position.status = 1; // gueltige Positionsdaten |
n = 0; |
gps_updte_flag = 1; // zeigt an, dass neue Daten vorliegen. |
} |
else |
{ |
n = 2; //keine gueltigen Daten vorhanden |
gps_rel_act_position.status = 0; //keine gueltige Position weil keine home Position da ist. |
} |
return (n); |
} |
|
// Daten aus aktuellen ublox Messages extrahieren |
// Rueckgabewert 0= Daten sind aktuell und gueltig. 1= Keine Aenderung. 2= Daten ungueltig |
short int Get_GPS_data(void) |
{ |
short int n = 1; |
|
if (actual_pos.status == 0) return (1); //damit es schnell geht, wenn nix zu tun ist |
if ((actual_pos.status > 0) && (actual_status.status > 0) && (actual_speed.status > 0)) |
{ |
if (((actual_status.gpsfix_type & 0x03) >=2) && ((actual_status.nav_status_flag & 0x01) >=1)) // nur wenn Daten aktuell und gueltig sind |
{ |
actual_status.status = 0; |
gps_act_position.utm_east = actual_pos.utm_east/10; |
gps_act_position.utm_north = actual_pos.utm_north/10; |
gps_act_position.utm_alt = actual_pos.utm_alt/10; |
actual_pos.status = 0; //neue ublox Messages anfordern |
gps_act_position.speed_gnd = actual_speed.speed_gnd; |
gps_act_position.speed_gnd = actual_speed.speed_gnd; |
gps_act_position.heading = actual_speed.heading/100000; |
actual_speed.status = 0; |
gps_act_position.status = 1; |
n = 0; //Daten gueltig |
} |
else |
{ |
gps_act_position.status = 0; //Keine gueltigen Daten |
actual_speed.status = 0; |
actual_status.status = 0; |
actual_pos.status = 0; //neue ublox Messages anfordern |
n = 2; |
} |
} |
return (n); |
} |
|
/* |
Daten vom GPS im ublox MSG Format auswerten |
Die Routine wird bei jedem Empfang eines Zeichens vom GPS Modul durch den UART IRQ aufgerufen |
// Die UBX Messages NAV_POSUTM, NAV_STATUS und NAV_VALED muessen aktiviert sein |
*/ |
void Get_Ublox_Msg(uint8_t rx) |
{ |
switch (ublox_msg_state) |
{ |
|
case UBLOX_IDLE: // Zuerst Synchcharacters pruefen |
if ( rx == UBLOX_SYNCH1_CHAR ) ublox_msg_state = UBLOX_SYNC1; |
else ublox_msg_state = UBLOX_IDLE; |
break; |
|
case UBLOX_SYNC1: |
|
if (rx == UBLOX_SYNCH2_CHAR) ublox_msg_state = UBLOX_SYNC2; |
else ublox_msg_state = UBLOX_IDLE; |
chk_a = 0,chk_b = 0; |
break; |
|
case UBLOX_SYNC2: |
if (rx == UBLOX_NAV_CLASS) ublox_msg_state = UBLOX_CLASS; |
else ublox_msg_state = UBLOX_IDLE; |
break; |
|
case UBLOX_CLASS: // Nur NAV Meldungen auswerten |
switch (rx) |
{ |
case UBLOX_NAV_POSUTM: |
ptr_pac_status = &actual_pos.status; |
if (*ptr_pac_status > 0) ublox_msg_state = UBLOX_IDLE; //Abbruch weil Daten noch nicht verwendet wurden |
else |
{ |
ptr_payload_data = &actual_pos; |
ptr_payload_data_end = &actual_pos.status; |
ublox_msg_state = UBLOX_LEN1; |
} |
break; |
|
case UBLOX_NAV_STATUS: |
ptr_pac_status = &actual_status.status; |
if (*ptr_pac_status > 0) ublox_msg_state = UBLOX_IDLE; |
else |
{ |
ptr_payload_data = &actual_status; |
ptr_payload_data_end = &actual_status.status; |
ublox_msg_state = UBLOX_LEN1; |
} |
break; |
|
case UBLOX_NAV_VELED: |
ptr_pac_status = &actual_speed.status; |
if (*ptr_pac_status > 0) ublox_msg_state = UBLOX_IDLE; |
else |
{ |
ptr_payload_data = &actual_speed; |
ptr_payload_data_end = &actual_speed.status; |
ublox_msg_state = UBLOX_LEN1; |
} |
break; |
|
default: |
ublox_msg_state = UBLOX_IDLE; |
break; |
} |
chk_a = UBLOX_NAV_CLASS + rx; |
chk_b = UBLOX_NAV_CLASS + chk_a; |
break; |
|
case UBLOX_LEN1: // Laenge auswerten |
rx_len = rx; |
chk_a += rx; |
chk_b += chk_a; |
ublox_msg_state = UBLOX_LEN2; |
break; |
|
|
case UBLOX_LEN2: // Laenge auswerten |
rx_len = rx_len + (rx *256); // Laenge ermitteln |
chk_a += rx; |
chk_b += chk_a; |
ublox_msg_state = UBLOX_PAYLOAD; |
break; |
|
case UBLOX_PAYLOAD: // jetzt Nutzdaten einlesen |
if (rx_len > 0) |
{ |
*ptr_payload_data = rx; |
chk_a += rx; |
chk_b += chk_a; |
--rx_len; |
if ((rx_len > 0) && (ptr_payload_data <= ptr_payload_data_end)) |
{ |
ptr_payload_data++; |
ublox_msg_state = UBLOX_PAYLOAD; |
} |
else ublox_msg_state = UBLOX_CKA; |
} |
else ublox_msg_state = UBLOX_IDLE; // Abbruch wegen Fehler |
break; |
|
case UBLOX_CKA: // Checksum pruefen |
if (rx == chk_a) ublox_msg_state = UBLOX_CKB; |
else ublox_msg_state = UBLOX_IDLE; // Abbruch wegen Fehler |
break; |
|
case UBLOX_CKB: // Checksum pruefen |
if (rx == chk_b) *ptr_pac_status = 1; // Paket ok |
ublox_msg_state = UBLOX_IDLE; |
break; |
|
default: |
ublox_msg_state = UBLOX_IDLE; |
break; |
} |
} |
|
//Zentrale Statemachine fuer alle GPS relevanten Regelungsablauefe |
short int GPS_CRTL(short int cmd) |
{ |
static unsigned int cnt; // Zaehler fuer diverse Verzoegerungen |
static long int delta_north,delta_east; // Mass fuer Distanz zur Sollposition |
signed int n; |
static signed int gps_g2t_act_v; // Aktuelle Geschwindigkeitsvorgabe fuer Home Funktion |
signed int dist_frm_start_east,dist_frm_start_north; |
int amplfy_speed_east,amplfy_speed_north; //Verstaerkungsfaktoren fuer D-Anteil |
static signed int int_east,int_north; //Integrierer |
long int speed_east,speed_north; //Aktuelle Geschwindigkeit |
signed long int_east1,int_north1; |
int dist_east,dist_north; |
int diff_p; //Vom Modus abhaengige zusaetzliche Verstaerkung |
long ni,ro; // Nick und Roll Zwischenwerte |
|
|
switch (cmd) |
{ |
|
case GPS_CMD_REQ_HOME: // Es soll zum Startpunkt zurueckgeflogen werden. |
if ((gps_state != GPS_CRTL_HOLD_ACTIVE) && (gps_state != GPS_CRTL_HOME_ACTIVE)) |
{ |
cnt++; |
if (cnt > 50) // erst nach Verzoegerung |
{ |
// Erst mal initialisieren |
cnt = 0; |
gps_tick = 0; |
hold_fast = 0; |
hold_reset_int = 0; // Integrator enablen |
int_east = 0, int_north = 0; |
gps_reg_x = 0, gps_reg_y = 0; |
delta_east = 0, delta_north = 0; |
dist_flown = 0; |
gps_g2t_act_v = 0; |
gps_sub_state = GPS_CRTL_IDLE; |
// aktuelle positionsdaten abspeichern |
if (gps_rel_act_position.status > 0) |
{ |
gps_rel_start_position.utm_east = gps_rel_act_position.utm_east; |
gps_rel_start_position.utm_north= gps_rel_act_position.utm_north; |
gps_rel_start_position.status = 1; // gueltige Positionsdaten |
gps_rel_hold_position.utm_east = gps_rel_act_position.utm_east; |
gps_rel_hold_position.utm_north = gps_rel_act_position.utm_north; |
gps_rel_hold_position.status = 1; // gueltige Positionsdaten |
//Richtung zur Home Position bezogen auf Nordpol bestimmen |
hdng_2home = arctan_i(-gps_rel_start_position.utm_east,-gps_rel_start_position.utm_north); |
// in Winkel 0...360 Grad umrechnen |
if (( gps_rel_start_position.utm_east < 0)) hdng_2home = ( 90-hdng_2home); |
else hdng_2home = (270 - hdng_2home); |
dist_2home = (int) get_dist(gps_rel_start_position.utm_east,gps_rel_start_position.utm_north,hdng_2home); //Entfernung zur Home Position bestimmen |
gps_state = GPS_CRTL_HOME_ACTIVE; |
return (GPS_STST_OK); |
} |
else |
{ |
gps_rel_start_position.status = 0; //Keine Daten verfuegbar |
gps_state = GPS_CRTL_IDLE; |
return(GPS_STST_ERR); // Keine Daten da |
} |
} |
else return(GPS_STST_PEND); // noch warten |
} |
break; |
// ****************************** |
|
case GPS_CMD_REQ_HOLD: // Die Lageregelung soll aktiviert werden. |
if (gps_state != GPS_CRTL_HOLD_ACTIVE) |
{ |
cnt++; |
if (cnt > 600) // erst nach Verzoegerung |
{ |
cnt = 0; |
// aktuelle positionsdaten abspeichern |
if (gps_rel_act_position.status > 0) |
{ |
hold_fast = 0; |
hold_reset_int = 0; // Integrator enablen |
int_east = 0, int_north = 0; |
gps_reg_x = 0, gps_reg_y = 0; |
delta_east = 0, delta_north = 0; |
speed_east = 0; speed_north= 0; |
int_ovfl_cnt = 0; |
gps_quiet_cnt = 0; |
gps_rel_hold_position.utm_east = gps_rel_act_position.utm_east; |
gps_rel_hold_position.utm_north = gps_rel_act_position.utm_north; |
gps_rel_hold_position.status = 1; // gueltige Positionsdaten |
gps_state = GPS_CRTL_HOLD_ACTIVE; |
return (GPS_STST_OK); |
} |
else |
{ |
gps_rel_hold_position.status = 0; //Keine Daten verfuegbar |
gps_state = GPS_CRTL_IDLE; |
return(GPS_STST_ERR); // Keine Daten da |
} |
} |
else return(GPS_STST_PEND); // noch warten |
} |
break; |
|
case GPS_CMD_STOP: // Lageregelung beenden |
cnt = 0; |
GPS_Nick = 0; |
GPS_Roll = 0; |
gps_sub_state = GPS_CRTL_IDLE; |
gps_state = GPS_CRTL_IDLE; |
return (GPS_STST_OK); |
break; |
|
default: |
return (GPS_STST_ERR); |
break; |
} |
|
switch (gps_state) |
{ |
case GPS_CRTL_IDLE: |
cnt = 0; |
return (GPS_STST_OK); |
break; |
|
case GPS_CRTL_HOME_ACTIVE: // Rueckflug zur Basis |
//Der Sollwert des Lagereglers wird der Homeposition angenaehert |
if (gps_rel_start_position.status >0) |
{ |
if ((gps_updte_flag > 0) && (gps_sub_state !=GPS_HOME_FINISHED)) // nur wenn neue GPS Daten vorliegen und nicht schon alles fertig ist |
{ |
gps_tick++; |
int d1,d2,d3; |
d1 = abs (gps_rel_hold_position.utm_east - gps_rel_act_position.utm_east ); |
d2 = abs (gps_rel_hold_position.utm_north - gps_rel_act_position.utm_north ); |
d3 = (dist_2home - dist_flown); // Restdistanz zum Ziel |
|
if (d3 > GPS_G2T_DIST_MAX_STOP) // Schneller Rueckflug, noch weit weg vom Ziel |
{ |
if ((d1 < GPS_G2T_FAST_TOL) && (d2 < GPS_G2T_FAST_TOL)) //nur weiter wenn Lage innerhalb der Toleranz |
{ |
if (gps_g2t_act_v < GPS_G2T_V_MAX-3) gps_g2t_act_v += 4; //Geschwindigkeit erhoehen |
dist_flown +=gps_g2t_act_v; // Vorgabe der Strecke anhand der Geschwindigkeit |
gps_sub_state = GPS_HOME_FAST_IN_TOL; |
} |
else //Den Lageregler in Ruhe arbeiten lassen weil ausserhalb der Toleranz |
{ |
if (gps_g2t_act_v > 1) gps_g2t_act_v--; // Geschwindigkeit reduzieren |
// dist_flown++; //Auch ausserhalb der Toleranz langsam erhoehen |
gps_sub_state = GPS_HOME_FAST_OUTOF_TOL; |
} |
hold_reset_int = 0; // Integrator einsschalten |
hold_fast = 1; // Regler fuer schnellen Flug |
dist_frm_start_east = (int)(((long)dist_flown * (long)sin_i(hdng_2home))/1000); |
dist_frm_start_north = (int)(((long)dist_flown * (long)cos_i(hdng_2home))/1000); |
gps_rel_hold_position.utm_east = gps_rel_start_position.utm_east + dist_frm_start_east; //naechster Zielpunkt |
gps_rel_hold_position.utm_north = gps_rel_start_position.utm_north + dist_frm_start_north; //naechster Zielpunkt |
} |
else if (d3 > GPS_G2T_DIST_HOLD) //Das Ziel naehert sich, deswegen abbremsen |
{ |
if ((d1 < GPS_G2T_NRML_TOL) && (d2 < GPS_G2T_NRML_TOL)) |
{ |
dist_flown += GPS_G2T_V_RAMP_DWN; // Vorgabe der Strecke anhand der Geschwindigkeit |
gps_sub_state = GPS_HOME_RMPDWN_IN_TOL; |
} |
else |
{ |
dist_flown++; //Auch ausserhalb der Toleranz langsam erhoehen |
gps_sub_state = GPS_HOME_RMPDWN_OUTOF_TOL; |
} |
hold_reset_int = 0; // Integrator einsschalten |
hold_fast = 1; // Regler fuer schnellen Flug |
dist_frm_start_east = (int)(((long)dist_flown * (long)sin_i(hdng_2home))/1000); |
dist_frm_start_north = (int)(((long)dist_flown * (long)cos_i(hdng_2home))/1000); |
gps_rel_hold_position.utm_east = gps_rel_start_position.utm_east + dist_frm_start_east; //naechster Zielpunkt |
gps_rel_hold_position.utm_north = gps_rel_start_position.utm_north + dist_frm_start_north; //naechster Zielpunkt |
} |
else //Soll-Ziel fast erreicht, Jetzt noch Reste ausgleichen, weil Zielpunkt nicht exakt bestimmt werden konnte (Fehler in Winkelfkt) |
{ |
if ((d1 < GPS_G2T_NRML_TOL) && (d2 < GPS_G2T_NRML_TOL)) // Jetzt bis zum Zielpunkt regeln |
{ |
gps_sub_state = GPS_HOME_IN_TOL; |
hold_fast = 0; // Wieder normal regeln |
hold_reset_int = 0; // Integrator einsschalten |
if (gps_rel_hold_position.utm_east >= GPS_G2T_V_MIN) gps_rel_hold_position.utm_east -= GPS_G2T_V_MIN; |
else if (gps_rel_hold_position.utm_east <= -GPS_G2T_V_MIN ) gps_rel_hold_position.utm_east += GPS_G2T_V_MIN; |
if (gps_rel_hold_position.utm_north >= GPS_G2T_V_MIN) gps_rel_hold_position.utm_north -= GPS_G2T_V_MIN; |
else if (gps_rel_hold_position.utm_north <= - GPS_G2T_V_MIN ) gps_rel_hold_position.utm_north += GPS_G2T_V_MIN; |
if ((abs(gps_rel_hold_position.utm_east) <= GPS_G2T_V_MIN) && (abs(gps_rel_hold_position.utm_north) <=GPS_G2T_V_MIN)) |
{ |
gps_rel_hold_position.utm_east = 0; |
gps_rel_hold_position.utm_north = 0; |
gps_sub_state = GPS_HOME_FINISHED; |
} |
} |
else gps_sub_state = GPS_HOME_OUTOF_TOL; |
} |
} |
gps_state = GPS_CRTL_HOLD_ACTIVE; //Zwischensprung |
return (GPS_STST_OK); |
} |
else // Keine GPS Daten verfuegbar, deswegen Abbruch |
{ |
gps_state = GPS_CRTL_IDLE; |
return (GPS_STST_ERR); |
} |
break; |
|
|
case GPS_CRTL_HOLD_ACTIVE: // Hier werden die Daten fuer Nick und Roll errechnet |
if (gps_updte_flag >0) // nur wenn neue GPS Daten vorliegen |
{ |
gps_quiet_cnt++; |
// ab hier wird geregelt |
delta_east = (long) (gps_rel_act_position.utm_east - gps_rel_hold_position.utm_east); |
delta_north = (long) (gps_rel_act_position.utm_north - gps_rel_hold_position.utm_north); |
int_east += (int)delta_east; |
int_north += (int)delta_north; |
speed_east = actual_speed.speed_e; |
speed_north = actual_speed.speed_n; |
gps_updte_flag = 0; // Neue Werte koennen vom GPS geholt werden |
dist_east = (int)delta_east; //merken |
dist_north = (int)delta_north; |
|
|
#define GPSINT_MAX 3000 // Neues Verfahren ab 30.12.2007 bei Integratoroverflow |
if ((abs(int_east) > GPSINT_MAX) || (abs(int_north)> GPSINT_MAX)) |
{ |
if (int_ovfl_cnt < 40) int_ovfl_cnt += 1; // Zahl der Overflows zaehlen |
} |
if (int_ovfl_cnt > 0) //bei Overflow Wert Integratorwert reduzieren |
{ |
int_ovfl_cnt -= 1; |
int_east = (int_east*7)/8; // Wert reduzieren |
int_north = (int_north*7)/8; |
} |
|
if (hold_reset_int > 0) //Im Schnellen Mode Integrator abschalten |
{ |
int_east = 0; |
int_north = 0; |
} |
|
//I Werte begrenzen |
#define INT1_MAX (GPS_NICKROLL_MAX * GPS_V*3)/10// auf 30 Prozent des maximalen Nick/Rollwert begrenzen |
int_east1 = ((((long)int_east) * Parameter_UserParam2)/32)/GPS_USR_PAR_FKT; |
int_north1 = ((((long)int_north) * Parameter_UserParam2)/32)/GPS_USR_PAR_FKT; |
if (int_east1 > INT1_MAX) int_east1 = INT1_MAX; //begrenzen |
else if (int_east1 < -INT1_MAX) int_east1 = -INT1_MAX; |
if (int_north1 > INT1_MAX) int_north1 = INT1_MAX; //begrenzen |
else if (int_north1 < -INT1_MAX) int_north1 = -INT1_MAX; |
|
if (hold_fast > 0) //schneller Coming Home Modus |
{ |
amplfy_speed_east = DIFF_Y_F_MAX; |
amplfy_speed_north = DIFF_Y_F_MAX; |
amplfy_speed_east *= (Parameter_UserParam3/GPS_USR_PAR_FKT); |
amplfy_speed_north *= (Parameter_UserParam3/GPS_USR_PAR_FKT); |
// speed_east = (speed_east * abs(speed_east) * (long)amplfy_speed_east ) /40000; //quadrieren |
// speed_north = (speed_north * abs(speed_north) * (long)amplfy_speed_north) /40000; //quadrieren |
speed_east = (speed_east * (long)amplfy_speed_east) /100; |
speed_north = (speed_north * (long)amplfy_speed_north)/100; |
// D Werte begrenzen |
#define D_F_MAX (GPS_NICKROLL_MAX * GPS_V*7)/10 // auf xx Prozent des Maximalen Nick/Rollwert begrenzen |
if (speed_east > D_F_MAX) speed_east = D_F_MAX; |
else if (speed_east < -D_F_MAX) speed_east = -D_F_MAX; |
if (speed_north > D_F_MAX) speed_north = D_F_MAX; |
else if (speed_north < -D_F_MAX) speed_north = -D_F_MAX; |
|
diff_p = (Parameter_UserParam1 * GPS_PROP_FAST_V)/GPS_USR_PAR_FKT; //Verstaerkung fuer P-Anteil |
} |
else //langsamer Holdmodus |
{ |
amplfy_speed_east = DIFF_Y_N_MAX; |
amplfy_speed_north = DIFF_Y_N_MAX; |
amplfy_speed_east *= (Parameter_UserParam3/GPS_USR_PAR_FKT); |
amplfy_speed_north *= (Parameter_UserParam3/GPS_USR_PAR_FKT); |
// speed_east = (speed_east * abs(speed_east) * (long)amplfy_speed_east) /20000; //quadrieren |
// speed_north = (speed_north * abs(speed_north) * (long)amplfy_speed_north) /20000; //quadrieren |
speed_east = (speed_east * (long)amplfy_speed_east) /50; |
speed_north = (speed_north * (long)amplfy_speed_north)/50; |
// D Werte begrenzen |
#define D_N_MAX (GPS_NICKROLL_MAX * GPS_V*7)/10 // auf xx Prozent des Maximalen Nick/Rollwert begrenzen |
if (speed_east > D_N_MAX) speed_east = D_N_MAX; |
else if (speed_east < -D_N_MAX) speed_east = -D_N_MAX; |
if (speed_north > D_N_MAX) speed_north = D_N_MAX; |
else if (speed_north < -D_N_MAX) speed_north = -D_N_MAX; |
|
diff_p = (Parameter_UserParam1 * GPS_PROP_NRML_V)/GPS_USR_PAR_FKT; //Verstaerkung fuer P-Anteil |
} |
|
debug_gp_4 = (int)speed_east; // zum Debuggen |
debug_gp_5 = (int)speed_north; // zum Debuggen |
|
//P-Werte quadrieren |
// delta_east = (abs(delta_east) * delta_east )/20; //quadrieren |
// delta_north = (abs(delta_north) * delta_north)/20; //quadrieren |
// delta_east = (delta_east )/2; //quadrieren |
// delta_north = (delta_north)/2; //quadrieren |
|
delta_east = (delta_east * (long)diff_p)/(20); |
delta_north = (delta_north * (long)diff_p)/(20); |
|
if (hold_fast > 0) //schneller Coming Home Modus |
{ |
// P Werte begrenzen |
#define P1_F_MAX (GPS_NICKROLL_MAX * GPS_V*5)/10 // auf xx Prozent des Maximalen Nick/Rollwert begrenzen |
if (delta_east > P1_F_MAX) delta_east = P1_F_MAX; |
else if (delta_east < -P1_F_MAX) delta_east = -P1_F_MAX; |
if (delta_north > P1_F_MAX) delta_north = P1_F_MAX; |
else if (delta_north < -P1_F_MAX) delta_north = -P1_F_MAX; |
} |
else // Hold modus |
{ |
// P Werte begrenzen |
#define P1_N_MAX (GPS_NICKROLL_MAX * GPS_V*5)/10 // auf xx Prozent des Maximalen Nick/Rollwert begrenzen |
if (delta_east > P1_N_MAX) delta_east = P1_N_MAX; |
else if (delta_east < -P1_N_MAX) delta_east = -P1_N_MAX; |
if (delta_north > P1_N_MAX) delta_north = P1_N_MAX; |
else if (delta_north < -P1_N_MAX) delta_north = -P1_N_MAX; |
} |
|
debug_gp_2 = (int)delta_east; // zum Debuggen |
debug_gp_3 = (int)delta_north; // zum Debuggen |
|
|
//PID Regler Werte aufsummieren |
gps_reg_x = -(int_east1 + delta_east + speed_east); // I + P +D Anteil X Achse |
gps_reg_y = -(int_north1 + delta_north + speed_north); // I + P +D Anteil Y Achse |
debug_gp_0 = (int)gps_reg_x; // zum Debuggen |
debug_gp_1 = (int)gps_reg_y; // zum Debuggen |
|
// Werte fuer Nick und Roll direkt aus gps_reg_x und gps_reg_y bestimmen |
n = GyroKomp_Int/GYROKOMP_INC_GRAD_DEFAULT; //Ausrichtung Kopter |
ni = -((gps_reg_y * (long)cos_i(n)) + (gps_reg_x * (long)sin_i(n)))/(1000*GPS_V); |
ro = ((gps_reg_x * (long)cos_i(n)) - (gps_reg_y * (long)sin_i(n)))/(1000*GPS_V); |
|
if (ni > (GPS_NICKROLL_MAX )) ni = (GPS_NICKROLL_MAX); |
else if (ni < -(GPS_NICKROLL_MAX )) ni = -(GPS_NICKROLL_MAX ); |
if (ro > (GPS_NICKROLL_MAX )) ro = (GPS_NICKROLL_MAX ); |
else if (ro < -(GPS_NICKROLL_MAX)) ro = -(GPS_NICKROLL_MAX ); |
|
if ((abs(dist_east) > GPS_DIST_MAX) || (abs(dist_north) > GPS_DIST_MAX)) // bei zu grossem Abstand abbrechen |
{ |
GPS_Roll = 0; |
GPS_Nick = 0; |
gps_state = GPS_CRTL_IDLE; |
return (GPS_STST_ERR); |
break; |
} |
else if ((PPM_in[7] > 100) && (CAM_GPS_QUIET > 0) && (gps_quiet_cnt <=4) ) // Wenn Fotoausloeser gedruckt wird, GPS Stellwerte kurzzeitig auf 0 setzen |
{ |
gps_quiet_cnt++; |
GPS_Roll = 0; |
GPS_Nick = 0; |
if ( cmd == GPS_CMD_REQ_HOME ) gps_state = GPS_CRTL_HOME_ACTIVE; // State umsetzen |
return (GPS_STST_OK); |
} |
else if ((PPM_in[7] < 50) && (CAM_GPS_QUIET > 0) && (gps_quiet_cnt >= 4)) |
{ |
gps_quiet_cnt = 0; |
if ( cmd == GPS_CMD_REQ_HOME ) gps_state = GPS_CRTL_HOME_ACTIVE; // State umsetzen |
return (GPS_STST_OK); |
} |
else |
{ |
GPS_Roll = (int)ro; |
GPS_Nick = (int)ni; |
if ( cmd == GPS_CMD_REQ_HOME ) gps_state = GPS_CRTL_HOME_ACTIVE; // State umsetzen |
return (GPS_STST_OK); |
} |
} |
else |
{ |
if ( cmd == GPS_CMD_REQ_HOME ) gps_state = GPS_CRTL_HOME_ACTIVE; // State umsetzen |
return (GPS_STST_OK); |
} |
break; |
|
default: |
gps_state = GPS_CRTL_IDLE; |
return (GPS_STST_ERR); |
break; |
} |
return (GPS_STST_ERR); |
|
} |
|