PX4 Autopilot Software
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Silvan Fuhrer f3cdf70732 VTOL: Quad-chute: rework loss of altitude condition
Previously the condition was based on hard coded height rate estimate and
setpoint values and an altitude error threshold. That showed to be leading
to false positives when the vehicle doesn't tightly follow the altitdue
ramp given by TECS to achieve a new altitude setpoint, and has become
completely infeasibly with the latest TECS rework that leads to non-ramped
altitude setpoint changes in the tecs_status message.
The new check no longer checks the altitude error but only the height rate
instead. It begins to integrate the height rate error once it detects an
uncommanded descend condition (height rate negative while setpoint is
positive). Integral threshold can be tuned by user (VT_QC_HR_ERROR_I).

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-01-19 09:36:09 +01:00
.ci cmake: fix and update packaging 2023-01-18 22:51:12 -05:00
.clusterfuzzlite Add clusterfuzzlite to fuzz in CI 2022-01-07 10:17:12 -05:00
.devcontainer ci: update container versions to 2021-09-08 2021-09-09 09:43:15 +02:00
.github rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
.vscode rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
Documentation msg ROS2 compatibility, microdds_client improvements (timesync, reduced code size, added topics, etc), fastrtps purge 2022-10-19 19:36:47 -04:00
ROMFS logger: Add arm to shutdown 2023-01-18 07:47:36 +01:00
Tools rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
boards boards/modalai: FCv1 DMA optimiziation for 2Mbit UART (#20956) 2023-01-18 23:01:57 -05:00
cmake cmake: fix and update packaging 2023-01-18 22:51:12 -05:00
integrationtests/python_src/px4_it Spelling errors (#19935) 2022-07-27 14:33:16 +10:00
launch rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
msg msg/ActuatorTest.msg: Use default queue size the same as MAX_NUM_MOTORS 2023-01-14 09:19:10 -05:00
platforms cmake: fix and update packaging 2023-01-18 22:51:12 -05:00
posix-configs vehicle_angular_velocity: ESC RPM notch filters minimize filter resets (#20449) 2022-10-20 09:05:23 -04:00
src VTOL: Quad-chute: rework loss of altitude condition 2023-01-19 09:36:09 +01:00
test rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
test_data lib/rc: Fix DSM2/DSMX guessing routine and DSM range checking (#18270) 2022-04-13 17:29:08 -04:00
validation Spelling errors (#19935) 2022-07-27 14:33:16 +10:00
.ackrc ack: add .ackrc to ignore the Documentation directory 2016-04-11 11:23:01 +02:00
.clang-tidy .clang-tidy: exclude some warnings 2022-07-20 01:14:04 -04:00
.gitattributes delete systemcmds/mixer 2022-09-09 09:14:09 -04:00
.github_changelog_generator Changelog generator default params 2017-12-30 11:27:57 +01:00
.gitignore NuttX push jlink-nuttx into cmake and enable CONFIG_DEBUG_TCBINFO by default 2023-01-12 09:05:26 -05:00
.gitmodules rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
.travis.yml Update CI to use the main branches. 2022-09-07 20:03:19 -04:00
.ycm_extra_conf.py update C++ standard (c++11 -> c++14) 2020-01-21 21:49:10 -05:00
CMakeLists.txt cmake: fix and update packaging 2023-01-18 22:51:12 -05:00
CODE_OF_CONDUCT.md Create CODE_OF_CONDUCT.md 2017-07-30 19:18:49 +02:00
CONTRIBUTING.md Docs are now in user guide and main (#19977) 2022-08-01 11:39:39 +10:00
CTestConfig.cmake gather test results 2017-01-02 10:14:41 +01:00
Firmware.sublime-project boards new split VENDOR_MODEL naming convention 2018-11-26 14:40:14 -08:00
Jenkinsfile Jenskinsfile: use nuttx container as emscripten requires xz to be installed 2022-10-26 14:54:48 -04:00
Kconfig Kconfig: fix missing SERIAL_EXT2 (fmu-v5x/v6x) 2023-01-07 12:10:52 -05:00
LICENSE Update current year in LICENSE 2022-01-17 08:10:57 +01:00
Makefile rename 'gazebo' simulation to 'gazebo-classic' (#20936) 2023-01-15 11:36:12 -05:00
README.md msg ROS2 compatibility, microdds_client improvements (timesync, reduced code size, added topics, etc), fastrtps purge 2022-10-19 19:36:47 -04:00
appveyor.yml appveyor: switch to Cygwin toolchain v0.9 2020-03-24 13:31:41 +00:00
eclipse.cproject boards new split VENDOR_MODEL naming convention 2018-11-26 14:40:14 -08:00
eclipse.project boards new split VENDOR_MODEL naming convention 2018-11-26 14:40:14 -08:00
package.xml initial minimal PX4_ROS2 platform and px4_ros2_default build (#20689) 2022-12-08 23:03:44 -05:00

README.md

PX4 Drone Autopilot

Releases DOI

Nuttx Targets SITL Tests

Discord Shield

This repository holds the PX4 flight control solution for drones, with the main applications located in the src/modules directory. It also contains the PX4 Drone Middleware Platform, which provides drivers and middleware to run drones.

PX4 is highly portable, OS-independent and supports Linux, NuttX and MacOS out of the box.

Building a PX4 based drone, rover, boat or robot

The PX4 User Guide explains how to assemble supported vehicles and fly drones with PX4. See the forum and chat if you need help!

Changing code and contributing

This Developer Guide is for software developers who want to modify the flight stack and middleware (e.g. to add new flight modes), hardware integrators who want to support new flight controller boards and peripherals, and anyone who wants to get PX4 working on a new (unsupported) airframe/vehicle.

Developers should read the Guide for Contributions. See the forum and chat if you need help!

Weekly Dev Call

The PX4 Dev Team syncs up on a weekly dev call.

Note The dev call is open to all interested developers (not just the core dev team). This is a great opportunity to meet the team and contribute to the ongoing development of the platform. It includes a QA session for newcomers. All regular calls are listed in the Dronecode calendar.

Maintenance Team

See also maintainers list (px4.io) and the contributors list (Github).

Supported Hardware

This repository contains code supporting Pixhawk standard boards (best supported, best tested, recommended choice) and proprietary boards.

Pixhawk Standard Boards

Manufacturer and Community supported

Additional information about supported hardware can be found in PX4 user Guide > Autopilot Hardware.

Project Roadmap

A high level project roadmap is available here.

Project Governance

The PX4 Autopilot project including all of its trademarks is hosted under Dronecode, part of the Linux Foundation.

Dronecode Logo Linux Foundation Logo