From bffa9e3fa83b84b51b2446291682519433fd3fff Mon Sep 17 00:00:00 2001 From: Thomas Gubler Date: Thu, 24 Jul 2014 19:27:40 +0200 Subject: navigator: add skeleton of FW engine failure mode --- src/modules/navigator/enginefailure.cpp | 147 ++++++++++++++++++++++++++++++++ 1 file changed, 147 insertions(+) create mode 100644 src/modules/navigator/enginefailure.cpp (limited to 'src/modules/navigator/enginefailure.cpp') diff --git a/src/modules/navigator/enginefailure.cpp b/src/modules/navigator/enginefailure.cpp new file mode 100644 index 000000000..ea654c5fd --- /dev/null +++ b/src/modules/navigator/enginefailure.cpp @@ -0,0 +1,147 @@ +/**************************************************************************** + * + * Copyright (c) 2013-2014 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + + /* @file enginefailure.cpp + * Helper class for a fixedwing engine failure mode + * + * @author Thomas Gubler + */ +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + +#include "navigator.h" +#include "enginefailure.h" + +#define DELAY_SIGMA 0.01f + +EngineFailure::EngineFailure(Navigator *navigator, const char *name) : + MissionBlock(navigator, name), + _ef_state(EF_STATE_NONE) +{ + /* load initial params */ + updateParams(); + /* initial reset */ + on_inactive(); +} + +EngineFailure::~EngineFailure() +{ +} + +void +EngineFailure::on_inactive() +{ + _ef_state = EF_STATE_NONE; +} + +void +EngineFailure::on_activation() +{ + _ef_state = EF_STATE_LOITERDOWN; + set_ef_item(); +} + +void +EngineFailure::on_active() +{ + if (is_mission_item_reached()) { + advance_ef(); + set_ef_item(); + } +} + +void +EngineFailure::set_ef_item() +{ + struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet(); + + /* make sure we have the latest params */ + updateParams(); + + set_previous_pos_setpoint(); + _navigator->set_can_loiter_at_sp(false); + + switch (_ef_state) { + case EF_STATE_LOITERDOWN: { + //XXX create mission item at ground (below?) here + + //_mission_item.lat = (double)(_param_airfieldhomelat.get()) * 1.0e-7; + //_mission_item.lon = (double)(_param_airfieldhomelon.get()) * 1.0e-7; + //_mission_item.altitude_is_relative = false; + //_mission_item.altitude = _param_airfieldhomealt.get(); + //_mission_item.yaw = NAN; + //_mission_item.loiter_radius = _navigator->get_loiter_radius(); + //_mission_item.loiter_direction = 1; + //_mission_item.nav_cmd = NAV_CMD_LOITER_UNLIMITED; + //_mission_item.acceptance_radius = _navigator->get_acceptance_radius(); + //_mission_item.time_inside = _param_commsholdwaittime.get() < 0.0f ? 0.0f : _param_commsholdwaittime.get(); + //_mission_item.pitch_min = 0.0f; + //_mission_item.autocontinue = true; + //_mission_item.origin = ORIGIN_ONBOARD; + + //_navigator->set_can_loiter_at_sp(true); + break; + } + default: + break; + } + + reset_mission_item_reached(); + + /* convert mission item to current position setpoint and make it valid */ + mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current); + pos_sp_triplet->next.valid = false; + + _navigator->set_position_setpoint_triplet_updated(); +} + +void +EngineFailure::advance_ef() +{ + switch (_ef_state) { + case EF_STATE_NONE: + _ef_state = EF_STATE_LOITERDOWN; + break; + default: + break; + } +} -- cgit v1.2.3 From a08b7a9f359cc0cf9c6d0631bb844b54f50adcab Mon Sep 17 00:00:00 2001 From: Thomas Gubler Date: Thu, 24 Jul 2014 21:22:40 +0200 Subject: enginefailure: set mission item --- src/modules/navigator/enginefailure.cpp | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'src/modules/navigator/enginefailure.cpp') diff --git a/src/modules/navigator/enginefailure.cpp b/src/modules/navigator/enginefailure.cpp index ea654c5fd..de567f0dc 100644 --- a/src/modules/navigator/enginefailure.cpp +++ b/src/modules/navigator/enginefailure.cpp @@ -104,21 +104,21 @@ EngineFailure::set_ef_item() case EF_STATE_LOITERDOWN: { //XXX create mission item at ground (below?) here - //_mission_item.lat = (double)(_param_airfieldhomelat.get()) * 1.0e-7; - //_mission_item.lon = (double)(_param_airfieldhomelon.get()) * 1.0e-7; - //_mission_item.altitude_is_relative = false; - //_mission_item.altitude = _param_airfieldhomealt.get(); - //_mission_item.yaw = NAN; - //_mission_item.loiter_radius = _navigator->get_loiter_radius(); - //_mission_item.loiter_direction = 1; - //_mission_item.nav_cmd = NAV_CMD_LOITER_UNLIMITED; - //_mission_item.acceptance_radius = _navigator->get_acceptance_radius(); - //_mission_item.time_inside = _param_commsholdwaittime.get() < 0.0f ? 0.0f : _param_commsholdwaittime.get(); - //_mission_item.pitch_min = 0.0f; - //_mission_item.autocontinue = true; - //_mission_item.origin = ORIGIN_ONBOARD; - - //_navigator->set_can_loiter_at_sp(true); + _mission_item.lat = _navigator->get_global_position()->lat; + _mission_item.lon = _navigator->get_global_position()->lon; + _mission_item.altitude_is_relative = false; + //XXX setting altitude to a very low value, evaluate other options + _mission_item.altitude = _navigator->get_home_position()->alt - 1000.0f; + _mission_item.yaw = NAN; + _mission_item.loiter_radius = _navigator->get_loiter_radius(); + _mission_item.loiter_direction = 1; + _mission_item.nav_cmd = NAV_CMD_LOITER_UNLIMITED; + _mission_item.acceptance_radius = _navigator->get_acceptance_radius(); + _mission_item.pitch_min = 0.0f; + _mission_item.autocontinue = true; + _mission_item.origin = ORIGIN_ONBOARD; + + _navigator->set_can_loiter_at_sp(true); break; } default: -- cgit v1.2.3 From 7f9c996555975301288da58745f69b39f05facbe Mon Sep 17 00:00:00 2001 From: Thomas Gubler Date: Tue, 19 Aug 2014 07:30:19 +0200 Subject: engine fail: small state machine fix --- src/modules/navigator/enginefailure.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/modules/navigator/enginefailure.cpp') diff --git a/src/modules/navigator/enginefailure.cpp b/src/modules/navigator/enginefailure.cpp index de567f0dc..e007b208b 100644 --- a/src/modules/navigator/enginefailure.cpp +++ b/src/modules/navigator/enginefailure.cpp @@ -76,7 +76,8 @@ EngineFailure::on_inactive() void EngineFailure::on_activation() { - _ef_state = EF_STATE_LOITERDOWN; + _ef_state = EF_STATE_NONE; + advance_ef(); set_ef_item(); } @@ -139,6 +140,7 @@ EngineFailure::advance_ef() { switch (_ef_state) { case EF_STATE_NONE: + mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: Engine failure. Loitering down"); _ef_state = EF_STATE_LOITERDOWN; break; default: -- cgit v1.2.3