Beispiel #1
0
void autopilot_on_rc_frame(void) {

  uint8_t new_autopilot_mode = 0;
  AP_MODE_OF_PPRZ(radio_control.values[RADIO_MODE], new_autopilot_mode);
  autopilot_set_mode(new_autopilot_mode);

#ifdef RADIO_KILL_SWITCH
  if (radio_control.values[RADIO_KILL_SWITCH] < 0)
    autopilot_set_mode(AP_MODE_KILL);
#endif

#ifdef AUTOPILOT_KILL_WITHOUT_AHRS
  if (!ahrs_is_aligned())
    autopilot_set_mode(AP_MODE_KILL);
#endif

  autopilot_check_motors_on();
  autopilot_check_in_flight();
  kill_throttle = !autopilot_motors_on;

  if (autopilot_mode > AP_MODE_FAILSAFE) {
    guidance_v_read_rc();
    guidance_h_read_rc(autopilot_in_flight);
  }

}
Beispiel #2
0
void autopilot_on_rc_frame(void)
{

  if (kill_switch_is_on()) {
    autopilot_set_mode(AP_MODE_KILL);
  } else {
#ifdef RADIO_AUTO_MODE
    INFO("Using RADIO_AUTO_MODE to switch between AUTO1 and AUTO2.")
    uint8_t new_autopilot_mode = ap_mode_of_two_switches();
#else
    uint8_t new_autopilot_mode = ap_mode_of_3way_switch();
#endif

    /* don't enter NAV mode if GPS is lost (this also prevents mode oscillations) */
    if (!(new_autopilot_mode == AP_MODE_NAV && GpsIsLost())) {
      /* always allow to switch to manual */
      if (new_autopilot_mode == MODE_MANUAL) {
        autopilot_set_mode(new_autopilot_mode);
      }
      /* if in HOME mode, don't allow switching to non-manual modes */
      else if ((autopilot_mode != AP_MODE_HOME)
#if UNLOCKED_HOME_MODE
               /* Allowed to leave home mode when UNLOCKED_HOME_MODE */
               || !too_far_from_home
#endif
              ) {
        autopilot_set_mode(new_autopilot_mode);
      }
    }
  }

  /* an arming sequence is used to start/stop motors.
   * only allow arming if ahrs is aligned
   */
  if (ahrs_is_aligned()) {
    autopilot_arming_check_motors_on();
    kill_throttle = ! autopilot_motors_on;
  }

  /* if not in FAILSAFE or HOME mode, read RC and set commands accordingly */
  if (autopilot_mode != AP_MODE_FAILSAFE && autopilot_mode != AP_MODE_HOME) {

    /* if there are some commands that should always be set from RC, do it */
#ifdef SetAutoCommandsFromRC
    SetAutoCommandsFromRC(commands, radio_control.values);
#endif

    /* if not in NAV_MODE set commands from the rc */
#ifdef SetCommandsFromRC
    if (autopilot_mode != AP_MODE_NAV) {
      SetCommandsFromRC(commands, radio_control.values);
    }
#endif

    guidance_v_read_rc();
    guidance_h_read_rc(autopilot_in_flight);
  }

}
Beispiel #3
0
void autopilot_set_motors_on(bool_t motors_on) {
  if (ahrs_is_aligned() && motors_on)
    autopilot_motors_on = TRUE;
  else
    autopilot_motors_on = FALSE;
  kill_throttle = ! autopilot_motors_on;
  autopilot_arming_set(autopilot_motors_on);
}
Beispiel #4
0
void autopilot_set_motors_on(bool motors_on)
{
  if (autopilot_mode != AP_MODE_KILL && ahrs_is_aligned() && motors_on) {
    autopilot_motors_on = true;
  } else {
    autopilot_motors_on = false;
  }
  kill_throttle = ! autopilot_motors_on;
  autopilot_arming_set(autopilot_motors_on);
}
Beispiel #5
0
void autopilot_set_mode(uint8_t new_autopilot_mode) {

  /* force kill mode as long as AHRS is not aligned */
  if (!ahrs_is_aligned())
    new_autopilot_mode = AP_MODE_KILL;

  if (new_autopilot_mode != autopilot_mode) {
    /* horizontal mode */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        stabilization_attitude_set_failsafe_setpoint();
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
#endif
      case AP_MODE_KILL:
        autopilot_in_flight = FALSE;
        autopilot_in_flight_counter = 0;
        guidance_h_mode_changed(GUIDANCE_H_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
        guidance_h_mode_changed(GUIDANCE_H_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_RATE_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_RATE);
        break;
      case AP_MODE_ATTITUDE_RC_CLIMB:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_ATTITUDE_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
      case AP_MODE_FORWARD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_FORWARD);
        break;
      case AP_MODE_CARE_FREE_DIRECT:
        guidance_h_mode_changed(GUIDANCE_H_MODE_CARE_FREE);
        break;
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_HOVER_CLIMB:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_HOVER);
        break;
      case AP_MODE_NAV:
        guidance_h_mode_changed(GUIDANCE_H_MODE_NAV);
        break;
      default:
        break;
    }
    /* vertical mode */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        guidance_v_zd_sp = SPEED_BFP_OF_REAL(0.5);
        break;
#endif
      case AP_MODE_KILL:
        autopilot_set_motors_on(FALSE);
        stabilization_cmd[COMMAND_THRUST] = 0;
        guidance_v_mode_changed(GUIDANCE_V_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_CARE_FREE_DIRECT:
      case AP_MODE_FORWARD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_RC_CLIMB:
      case AP_MODE_ATTITUDE_RC_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_CLIMB);
        break;
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_HOVER_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        break;
      case AP_MODE_RATE_Z_HOLD:
      case AP_MODE_ATTITUDE_Z_HOLD:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_HOVER);
        break;
      case AP_MODE_NAV:
        guidance_v_mode_changed(GUIDANCE_V_MODE_NAV);
        break;
      default:
        break;
    }
    autopilot_mode = new_autopilot_mode;
  }

}
Beispiel #6
0
void autopilot_periodic(void) {

  RunOnceEvery(NAV_PRESCALER, nav_periodic_task());
#if FAILSAFE_GROUND_DETECT
INFO("Using FAILSAFE_GROUND_DETECT")
  if (autopilot_mode == AP_MODE_FAILSAFE && autopilot_detect_ground) {
    autopilot_set_mode(AP_MODE_KILL);
    autopilot_detect_ground = FALSE;
  }
#endif

  /* set failsafe commands, if in FAILSAFE or KILL mode */
#if !FAILSAFE_GROUND_DETECT
  if (autopilot_mode == AP_MODE_KILL ||
      autopilot_mode == AP_MODE_FAILSAFE) {
#else
  if (autopilot_mode == AP_MODE_KILL) {
#endif
    SetCommands(commands_failsafe);
  }
  else {
    guidance_v_run( autopilot_in_flight );
    guidance_h_run( autopilot_in_flight );
    SetRotorcraftCommands(stabilization_cmd, autopilot_in_flight, autopilot_motors_on);
  }

}


void autopilot_set_mode(uint8_t new_autopilot_mode) {

  /* force kill mode as long as AHRS is not aligned */
  if (!ahrs_is_aligned())
    new_autopilot_mode = AP_MODE_KILL;

  if (new_autopilot_mode != autopilot_mode) {
    /* horizontal mode */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        stab_att_sp_euler.phi = 0;
        stab_att_sp_euler.theta = 0;
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
#endif
      case AP_MODE_KILL:
        autopilot_set_motors_on(FALSE);
        autopilot_in_flight = FALSE;
        autopilot_in_flight_counter = 0;
        guidance_h_mode_changed(GUIDANCE_H_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
        guidance_h_mode_changed(GUIDANCE_H_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_RATE_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_RATE);
        break;
      case AP_MODE_ATTITUDE_RC_CLIMB:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_ATTITUDE_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
      case AP_MODE_FORWARD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_FORWARD);
        break;
      case AP_MODE_CARE_FREE_DIRECT:
        guidance_h_mode_changed(GUIDANCE_H_MODE_CARE_FREE);
        break;
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_HOVER_CLIMB:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_HOVER);
        break;
      case AP_MODE_NAV:
        guidance_h_mode_changed(GUIDANCE_H_MODE_NAV);
        break;
      default:
        break;
    }
    /* vertical mode */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        guidance_v_zd_sp = SPEED_BFP_OF_REAL(0.5);
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        break;
#endif
      case AP_MODE_KILL:
        guidance_v_mode_changed(GUIDANCE_V_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_CARE_FREE_DIRECT:
      case AP_MODE_FORWARD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_RC_CLIMB:
      case AP_MODE_ATTITUDE_RC_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_CLIMB);
        break;
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_HOVER_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        break;
      case AP_MODE_RATE_Z_HOLD:
      case AP_MODE_ATTITUDE_Z_HOLD:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_HOVER);
        break;
      case AP_MODE_NAV:
        guidance_v_mode_changed(GUIDANCE_V_MODE_NAV);
        break;
      default:
        break;
    }
    autopilot_mode = new_autopilot_mode;
  }

}


static inline void autopilot_check_in_flight( bool_t motors_on ) {
  if (autopilot_in_flight) {
    if (autopilot_in_flight_counter > 0) {
      if (THROTTLE_STICK_DOWN()) {
        autopilot_in_flight_counter--;
        if (autopilot_in_flight_counter == 0) {
          autopilot_in_flight = FALSE;
        }
      }
      else {	/* !THROTTLE_STICK_DOWN */
        autopilot_in_flight_counter = AUTOPILOT_IN_FLIGHT_TIME;
      }
    }
  }
  else { /* not in flight */
    if (autopilot_in_flight_counter < AUTOPILOT_IN_FLIGHT_TIME &&
        motors_on) {
      if (!THROTTLE_STICK_DOWN()) {
        autopilot_in_flight_counter++;
        if (autopilot_in_flight_counter == AUTOPILOT_IN_FLIGHT_TIME)
          autopilot_in_flight = TRUE;
      }
      else { /*  THROTTLE_STICK_DOWN */
        autopilot_in_flight_counter = 0;
      }
    }
  }
}


void autopilot_set_motors_on(bool_t motors_on) {
  if (ahrs_is_aligned() && motors_on)
    autopilot_motors_on = TRUE;
  else
    autopilot_motors_on = FALSE;
  kill_throttle = ! autopilot_motors_on;
  autopilot_arming_set(autopilot_motors_on);
}


void autopilot_on_rc_frame(void) {

  if (kill_switch_is_on())
    autopilot_set_mode(AP_MODE_KILL);
  else {
    uint8_t new_autopilot_mode = 0;
    AP_MODE_OF_PPRZ(radio_control.values[RADIO_MODE], new_autopilot_mode);
    /* don't enter NAV mode if GPS is lost (this also prevents mode oscillations) */
    if (!(new_autopilot_mode == AP_MODE_NAV
#if USE_GPS
          && GpsIsLost()
#endif
       ))
      autopilot_set_mode(new_autopilot_mode);
  }

  /* if not in FAILSAFE mode check motor and in_flight status, read RC */
  if (autopilot_mode > AP_MODE_FAILSAFE) {

    /* if there are some commands that should always be set from RC, do it */
#ifdef SetAutoCommandsFromRC
    SetAutoCommandsFromRC(commands, radio_control.values);
#endif

    /* if not in NAV_MODE set commands from the rc */
#ifdef SetCommandsFromRC
    if (autopilot_mode != AP_MODE_NAV) {
      SetCommandsFromRC(commands, radio_control.values);
    }
#endif

    /* an arming sequence is used to start/stop motors */
    autopilot_arming_check_motors_on();
    kill_throttle = ! autopilot_motors_on;

    autopilot_check_in_flight(autopilot_motors_on);

    guidance_v_read_rc();
    guidance_h_read_rc(autopilot_in_flight);
  }

}
Beispiel #7
0
void autopilot_set_mode(uint8_t new_autopilot_mode)
{

  /* force startup mode (default is kill) as long as AHRS is not aligned */
  if (!ahrs_is_aligned()) {
    new_autopilot_mode = MODE_STARTUP;
  }

  if (new_autopilot_mode != autopilot_mode) {
    /* horizontal mode */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        stabilization_attitude_set_failsafe_setpoint();
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
#endif
      case AP_MODE_KILL:
        autopilot_in_flight = false;
        autopilot_in_flight_counter = 0;
        guidance_h_mode_changed(GUIDANCE_H_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
        guidance_h_mode_changed(GUIDANCE_H_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_RC_CLIMB:
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_RATE_Z_HOLD:
#if USE_STABILIZATION_RATE
        guidance_h_mode_changed(GUIDANCE_H_MODE_RATE);
#else
        return;
#endif
        break;
      case AP_MODE_ATTITUDE_RC_CLIMB:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_ATTITUDE_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
      case AP_MODE_FORWARD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_FORWARD);
        break;
      case AP_MODE_CARE_FREE_DIRECT:
        guidance_h_mode_changed(GUIDANCE_H_MODE_CARE_FREE);
        break;
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_HOVER_CLIMB:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_h_mode_changed(GUIDANCE_H_MODE_HOVER);
        break;
      case AP_MODE_HOME:
      case AP_MODE_NAV:
        guidance_h_mode_changed(GUIDANCE_H_MODE_NAV);
        break;
      case AP_MODE_MODULE:
#ifdef GUIDANCE_H_MODE_MODULE_SETTING
        guidance_h_mode_changed(GUIDANCE_H_MODE_MODULE_SETTING);
#endif
        break;
      case AP_MODE_FLIP:
        guidance_h_mode_changed(GUIDANCE_H_MODE_FLIP);
        break;
      case AP_MODE_GUIDED:
        guidance_h_mode_changed(GUIDANCE_H_MODE_GUIDED);
        break;
      default:
        break;
    }
    /* vertical mode */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        guidance_v_zd_sp = SPEED_BFP_OF_REAL(FAILSAFE_DESCENT_SPEED);
        break;
#endif
      case AP_MODE_KILL:
        autopilot_set_motors_on(FALSE);
        stabilization_cmd[COMMAND_THRUST] = 0;
        guidance_v_mode_changed(GUIDANCE_V_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_CARE_FREE_DIRECT:
      case AP_MODE_FORWARD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_RC_CLIMB:
      case AP_MODE_ATTITUDE_RC_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_CLIMB);
        break;
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_HOVER_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        break;
      case AP_MODE_RATE_Z_HOLD:
      case AP_MODE_ATTITUDE_Z_HOLD:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_HOVER);
        break;
      case AP_MODE_HOME:
      case AP_MODE_NAV:
        guidance_v_mode_changed(GUIDANCE_V_MODE_NAV);
        break;
      case AP_MODE_MODULE:
#ifdef GUIDANCE_V_MODE_MODULE_SETTING
        guidance_v_mode_changed(GUIDANCE_V_MODE_MODULE_SETTING);
#endif
        break;
      case AP_MODE_FLIP:
        guidance_v_mode_changed(GUIDANCE_V_MODE_FLIP);
        break;
      case AP_MODE_GUIDED:
        guidance_v_mode_changed(GUIDANCE_V_MODE_GUIDED);
        break;
      default:
        break;
    }
    //if switching to rate mode but rate mode is not defined, the function returned
    autopilot_mode = new_autopilot_mode;
  }
}
Beispiel #8
0
void autopilot_periodic(void) {

  RunOnceEvery(NAV_PRESCALER, nav_periodic_task());
#if FAILSAFE_GROUND_DETECT
INFO("Using FAILSAFE_GROUND_DETECT")//使用模式FAILSAFE_GROUND_DETECT失效保护_
  if (autopilot_mode == AP_MODE_FAILSAFE && autopilot_detect_ground) {
    autopilot_set_mode(AP_MODE_KILL);
    autopilot_detect_ground = FALSE;
  }
#endif

  /* set failsafe commands, if in FAILSAFE or KILL mode */
#if !FAILSAFE_GROUND_DETECT
  if (autopilot_mode == AP_MODE_KILL ||
      autopilot_mode == AP_MODE_FAILSAFE) {
#else
  if (autopilot_mode == AP_MODE_KILL) {
#endif
    SetCommands(commands_failsafe);
  }
  else {
    /* 计算向导模式下的两个方向水平和垂直方向的姿态信息*/
    guidance_v_run( autopilot_in_flight );
    guidance_h_run( autopilot_in_flight );
    /*设置旋翼的命令:稳定模式配置,飞行模式,电机打开状态*/
    SetRotorcraftCommands(stabilization_cmd, autopilot_in_flight, autopilot_motors_on);
  }

}

/*飞控模式设置函数*/
void autopilot_set_mode(uint8_t new_autopilot_mode) {

  /* force kill mode as long as AHRS is not aligned 
     强制杀死模式只要ahrs不是均衡的 */
  
  if (!ahrs_is_aligned())
    new_autopilot_mode = AP_MODE_KILL;
  
  /* 新的飞行模式*/
  if (new_autopilot_mode != autopilot_mode) {
    /* horizontal mode 水平模式 */
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE://失效保护模式
#ifndef KILL_AS_FAILSAFE
        stab_att_sp_euler.phi = 0;
        stab_att_sp_euler.theta = 0;
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
#endif
      case AP_MODE_KILL://kill模式
        autopilot_set_motors_on(FALSE);
        autopilot_in_flight = FALSE;
        autopilot_in_flight_counter = 0;
        guidance_h_mode_changed(GUIDANCE_H_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT://RC指挥模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_DIRECT://速度指挥模式
      case AP_MODE_RATE_Z_HOLD://Z轴(高度)速度指挥模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_RATE);
        break;
      case AP_MODE_ATTITUDE_RC_CLIMB://RC 姿态爬升模式
      case AP_MODE_ATTITUDE_DIRECT://姿态向导模式
      case AP_MODE_ATTITUDE_CLIMB://姿态爬升模式
      case AP_MODE_ATTITUDE_Z_HOLD://高度保持模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_ATTITUDE);
        break;
      case AP_MODE_FORWARD://前进模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_FORWARD);
        break;
      case AP_MODE_CARE_FREE_DIRECT://自由模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_CARE_FREE);
        break;
      case AP_MODE_HOVER_DIRECT://盘旋向导模式
      case AP_MODE_HOVER_CLIMB://盘旋爬升模式
      case AP_MODE_HOVER_Z_HOLD://盘旋高度保持模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_HOVER);
        break;
      case AP_MODE_NAV://导航模式
        guidance_h_mode_changed(GUIDANCE_H_MODE_NAV);
        break;
      default:
        break;
    }
    /* vertical mode 垂直模式*/
    switch (new_autopilot_mode) {
      case AP_MODE_FAILSAFE:
#ifndef KILL_AS_FAILSAFE
        guidance_v_zd_sp = SPEED_BFP_OF_REAL(0.5);
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        break;
#endif
      case AP_MODE_KILL:
        guidance_v_mode_changed(GUIDANCE_V_MODE_KILL);
        break;
      case AP_MODE_RC_DIRECT:
      case AP_MODE_RATE_DIRECT:
      case AP_MODE_ATTITUDE_DIRECT:
      case AP_MODE_HOVER_DIRECT:
      case AP_MODE_CARE_FREE_DIRECT:
      case AP_MODE_FORWARD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_DIRECT);
        break;
      case AP_MODE_RATE_RC_CLIMB:
      case AP_MODE_ATTITUDE_RC_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_RC_CLIMB);
        break;
      case AP_MODE_ATTITUDE_CLIMB:
      case AP_MODE_HOVER_CLIMB:
        guidance_v_mode_changed(GUIDANCE_V_MODE_CLIMB);
        break;
      case AP_MODE_RATE_Z_HOLD:
      case AP_MODE_ATTITUDE_Z_HOLD:
      case AP_MODE_HOVER_Z_HOLD:
        guidance_v_mode_changed(GUIDANCE_V_MODE_HOVER);
        break;
      case AP_MODE_NAV:
        guidance_v_mode_changed(GUIDANCE_V_MODE_NAV);
        break;
      default:
        break;
    }
    autopilot_mode = new_autopilot_mode;
  }

}


static inline void autopilot_check_in_flight( bool_t motors_on ) {
  if (autopilot_in_flight) {
    if (autopilot_in_flight_counter > 0) {
      if (THROTTLE_STICK_DOWN()) {
        autopilot_in_flight_counter--;
        if (autopilot_in_flight_counter == 0) {
          autopilot_in_flight = FALSE;
        }
      }
      else {	/* !THROTTLE_STICK_DOWN */
        autopilot_in_flight_counter = AUTOPILOT_IN_FLIGHT_TIME;
      }
    }
  }
  else { /* not in flight */
    if (autopilot_in_flight_counter < AUTOPILOT_IN_FLIGHT_TIME &&
        motors_on) {
      if (!THROTTLE_STICK_DOWN()) {
        autopilot_in_flight_counter++;
        if (autopilot_in_flight_counter == AUTOPILOT_IN_FLIGHT_TIME)
          autopilot_in_flight = TRUE;
      }
      else { /*  THROTTLE_STICK_DOWN */
        autopilot_in_flight_counter = 0;
      }
    }
  }
}


void autopilot_set_motors_on(bool_t motors_on) {
  if (ahrs_is_aligned() && motors_on)
    autopilot_motors_on = TRUE;
  else
    autopilot_motors_on = FALSE;
  kill_throttle = ! autopilot_motors_on;
  autopilot_arming_set(autopilot_motors_on);
}


void autopilot_on_rc_frame(void) {
  //是否关闭开关
  if (kill_switch_is_on())
    autopilot_set_mode(AP_MODE_KILL);//关闭自驾模式
  else {
    uint8_t new_autopilot_mode = 0;
    AP_MODE_OF_PPRZ(radio_control.values[RADIO_MODE], new_autopilot_mode);
    /* don't enter NAV mode if GPS is lost (this also prevents mode oscillations) */
    if (!(new_autopilot_mode == AP_MODE_NAV
#if USE_GPS
          && GpsIsLost()//GPS丢失时不要使用NAV导航模式
#endif
       ))
      autopilot_set_mode(new_autopilot_mode);
  }
	
  /* if not in FAILSAFE mode check motor and in_flight status, read RC */
  //飞行模式不是:失效保护时,检查电机和飞行状态,读RC
  if (autopilot_mode > AP_MODE_FAILSAFE) {

    /* if there are some commands that should always be set from RC, do it */
    //如果有来自于RC的命令,则去执行命令
#ifdef SetAutoCommandsFromRC
    SetAutoCommandsFromRC(commands, radio_control.values);
#endif

    /* if not in NAV_MODE set commands from the rc */
    //如果不是导航模式,设置来自RC的命令
#ifdef SetCommandsFromRC
    if (autopilot_mode != AP_MODE_NAV) {
      SetCommandsFromRC(commands, radio_control.values);
    }
#endif
  
    /* an arming sequence is used to start/stop motors */
    // 一个。。。序列用来启动和关闭电机
    autopilot_arming_check_motors_on();
    kill_throttle = ! autopilot_motors_on;//关闭电机

    autopilot_check_in_flight(autopilot_motors_on);

    guidance_v_read_rc();//的垂直方向的信息
    guidance_h_read_rc(autopilot_in_flight);//读EC
  }

}