Alien
Elite Member
You can get accurate altitude 'lidar' sensors. They are not GPS based.
Lidar Sensors For Ground And Above Ground Imagery
The latest lidar sensors have integrated optical altimeter technology which deliver accurate distance measurements above ground level while meeting size, weight and cost requirements of UAV manufacturers.
Agriculture and forestry use lidar to inspect vegetation such as leaves and crops. Also, the above ground imagery (for example forest canopy) can be removed to view the ground surface area.
Lidar Drones For Structural Inspection
The best lidar sensors have powerful built-in signal processing, large field of view and multi-segment measurements which generate critical distance data and efficient obstacle detection, which enable safe navigation when performing structural inspections.
The below lidar sensors were designed and engineered for small UAVs. Use the web links to each lidar sensor for more information. Each of the manufacturer have excellent websites which will give you full data sheets along with the best uses for their lidar sensors.
EXAMPLE
LeddarTech Lidar Sensors
Vu8 Lidar Sensor
The LeddarTech Vu8 is a compact solid-state lidar which provides highly accurate multi-target detection over eight independent segments. Detecting targets at up to a 215 meter range and weighting only 75 grams, the Vu8 delivers nearly twice the range for half the volume compared with the Leddar M16 from which it inspires.
The Vu8 uses a fixed laser light source, which significantly increases the sensor’s robustness and cost-efficiency. The Vu8 has a high tolerance to noise and interference. This means it is unaffected by other sensors’ signal, by lighting conditions including direct sunlight, and it provides reliable detection in various weather conditions including rain and snow.
If you want to read more go HERE
My flight controller (Pixhawk) I2C port, is designed to accept these. Cost is more than the drone is worth. (For hobby uses)
Lidar Sensors For Ground And Above Ground Imagery
The latest lidar sensors have integrated optical altimeter technology which deliver accurate distance measurements above ground level while meeting size, weight and cost requirements of UAV manufacturers.
Agriculture and forestry use lidar to inspect vegetation such as leaves and crops. Also, the above ground imagery (for example forest canopy) can be removed to view the ground surface area.
Lidar Drones For Structural Inspection
The best lidar sensors have powerful built-in signal processing, large field of view and multi-segment measurements which generate critical distance data and efficient obstacle detection, which enable safe navigation when performing structural inspections.
The below lidar sensors were designed and engineered for small UAVs. Use the web links to each lidar sensor for more information. Each of the manufacturer have excellent websites which will give you full data sheets along with the best uses for their lidar sensors.
EXAMPLE
LeddarTech Lidar Sensors
Vu8 Lidar Sensor
The LeddarTech Vu8 is a compact solid-state lidar which provides highly accurate multi-target detection over eight independent segments. Detecting targets at up to a 215 meter range and weighting only 75 grams, the Vu8 delivers nearly twice the range for half the volume compared with the Leddar M16 from which it inspires.
The Vu8 uses a fixed laser light source, which significantly increases the sensor’s robustness and cost-efficiency. The Vu8 has a high tolerance to noise and interference. This means it is unaffected by other sensors’ signal, by lighting conditions including direct sunlight, and it provides reliable detection in various weather conditions including rain and snow.
If you want to read more go HERE
My flight controller (Pixhawk) I2C port, is designed to accept these. Cost is more than the drone is worth. (For hobby uses)
