Px4 terrain following. However, I put the distance .
Px4 terrain following. But, even if the fused altitude seems to be good, the drone is following the barometer altitude and flight higher than I need. PX4 does not Jul 21, 2021 · Hello, I am writing today because I had a problem yesterday. Is there any way to use terrain following during mission mode??? Terrain Following/Holding & Range Aid PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. With the research I have done, My idea is to use two lidar sensors to calculate the height. PX4 User and Developer GuideWhen terrain following is enabled, PX4 uses the output of the EKF estimator to provide the altitude estimate, and the estimated terrain altitude (calculated from distance sensor measurements using another estimator) to provide the altitude setpoint. Aug 14, 2025 · I tested the terrain following feature in PX4 both in simulation and on a real vehicle, but even though the distance sensor data is coming in correctly, the vehicle does not maintain its altitude or adjust it according to the terrain. PX4 Autopilot Terrain following enables a vehicle to automatically maintain a relatively constant height above ground level when traveling at low altitudes. PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. For Collision Prevention I set the MPC_COL_PREV_D to 6 m. I am using a distance sensor (lightwave SF11/c) and I set all parameters to allow my distance sensor working. May be with an onboard distance sensor? PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. Max Descent Rate - Maximum descent rate when following terrain. QGroundControlcan be used to define missions that approximatelyfollow terrain (this just sets waypoint altitudes based on height above terrain, where terrain height at waypoints is obtained from a map database). Trying to get terrain following working an a FreeFly Astro with a Garmin LidarLite V3HP. g. QGroundControl can be used to define missions that approximately follow terrain (this just sets Jun 20, 2017 · DJI Flamewheel 450 with a Pixhawk 3 Pro, Lidar Lite V3 and Here+ RTK GPS Nov 11, 2019 · Hi Theire, at the Moment I´m a bit confused. Statistics The Statistics section shows the calculated survey area :::note PX4 does not \"natively\" support terrain following in missions. It can be connected to either I2C or PWM. When I´m planning a Mission and it comes to hightness then I got two Options: Relativ to home Terrain Following The Documentation says that “Terrain Following” uses the Data of the Map So, how to set it up when u want to follow the Terrain with your Distance Sensor? Of cause I put " [EKF2_HGT_MODE]" to 2 for Distance Sensor and “MPC_ALT_MODE Apr 30, 2020 · Hello, I would like to know if there is any possibility at the moment to perform an RTL with terrain following. Jul 31, 2023 · I want to use terrain following during mission mode but px4 wiki says it only supports position and altitude mode. Aug 15, 2025 · I am using the PX4 software and testing the terrain following feature both in simulation and on a real vehicle. We are looking at flying autonomous missions but wanted to use terrain following during the mission. For Terrain Following/Holding PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. "드론 프로그래밍이 궁금해?"쿼드(QUAD) 드론연구소 NAVER 공식 카페로 오세요~~~https://cafe Oct 5, 2020 · Is there this option in QGC? Terrain graph is available at the bottom of the plan view in both stable and daily builds. for aerial photography). May 27, 2019 · I am interested in developing high precision low altitude terrain following system for Pixhawk. PX4 does not "natively" support terrain following in missions. One is to calculate directly downward altitude and another one to calculate the distance to the ground at about an angle of 30degrees. If using Copter, see Copter specific terrain following instructions here. I can see with success the messages in the QGroundcontrol but when I test my hexacopter, it react to theses messages in order to do the terrain following or the collision prevention. Terrain Following/Holding PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. Tolerance - The accepted deviation in altitude from the target altitude. QGroundControl can be used to define missions that approximately follow Terrain Following/Holding & Range Aid PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. I’ve test the altitude mode and it’s work well but the regulation work with the current altitude and not with the distance ground-vehicle. Started the system both in simulation and on the real vehicle Terrain following works by maintaining a terrain database on the microSD card on the autopilot which gives the terrain height in meters above sea level for a grid of geographic locations. The configurable options are: Vehicle follows terrain - Check to enable terrain following (and display the following options). QGroundControl can be used to define missions that approximately follow terrain (this just sets waypoint altitudes based on height above terrain, where terrain height at Terrain Following/Holding PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. I’ve got MPC_ALT_MODE… PX4 고도 모드 중 Terrain following 모드를 테스트 해 봤습니다. Jul 9, 2025 · Terrain Following/Holding PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. Aug 2, 2022 · Hi all. The safetest RTL altitude would be 300m, above 120m allowed. The issue doesn’t seem to be the LidarLIte, as the altitude_terrain value is updating as expected. :::info PX4 does not "natively" support terrain following in missions. The note states " PX4 does not “natively” support terrain following in missions. Max Climb Rate - Maximum climb rate when following terrain. \n::: Jun 29, 2019 · I am new to QGC. Feb 1, 2021 · Good morning, I work with a pixhawk 4 and a fixed wing and I want to fly close to the ground “20 cm”. Terrain Following/Holding & Range Aid PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. LIDAR-Lite is a compact, high-performance optical distant measurement sensor solution for drone, robot or unmanned vehicle applications. PX4 also supports using a distance sensor as the primary source of altitude data in any mode, either all the time, or just when flying at low altitudes at low velocities (Range Aid). Thanks. This page explains how terrain following works, how to enable it and what its limitations are. However, I put the distance Aug 12, 2019 · Hi, I use an arduino to send DISTANCE_SENSOR ([ #132 ] and OBSTACLE_DISTANCE ([ #330 ] messages through serial interface to a CUBE flight controller. 2. . Is it possible to fly a survey mission while using an on-board laser rangefinder to follow terrain? I do not see an option while setting survey options to enable a rangefinder. In the picture, we follow a mountain, at a certain point, RTL is triggered. During my survey (set with QGC), I activated the terrain follow. This is useful for avoiding obstacles and for maintaining constant height when flying over varied terrain (e. PX4는 임무 모드에서는 지형 추적을 "기본적으로" 지원하지 않습니다. Thanks Jan 14, 2021 · Hello All, I am trying to get some clarification on one of the notes in the PX4 guide for terrain following. Even though I set the required parameters, when I run the system, the vehicle does not follow the terrain and only flies at a fixed altitude Aug 14, 2025 · I tested the terrain following feature in PX4 both in simulation and on a real vehicle, but even though the distance sensor data is coming in correctly, the vehicle does not maintain its altitude or adjust it according to the terrain. Is there any past attempts related to this. As the distance to ground changes, the altitude setpoint adjusts to keep the height above ground constant. ::: info PX4 does not "natively" support terrain following in missions. I saw in the doc that the “terrain following” mode is only available with multicopters and VTOL and I would like to know if it’s possible to PX4 supports Terrain Following and Terrain Hold in Position and Altitude modes, on multicopters and VTOL vehicles in MC mode that have a distance sensor. uvouhj19pqnhouwytfyinxd7k0szp4b4yekyhwol9k