Precision agriculture using Multispectral UAV
Objective:
To monitor plant health using a Multispectral camera in a photogrammetry survey.
Apparatus used:
Drone with multispectral camera, Battery, Interface device (phone/iPad), USB cable, Landing pad.
Description
Multispectral cameras are equipped with lenses and filters that pick up wavelengths beyond the visible spectrum—in the direction of infrared wavelengths. Plants and soil absorb and reflect wavelengths from sunlight depending on their contents. For example, when a plant is healthy and engaged in photosynthesis, it will absorb a lot of red and blue light and reflect green and a lot more infrared light.
Unfold the antennas of the transmitter on both the sides.
Unfold the phone/iPad holder and press the button on the side to place the device phone/iPad on the holder of the transmitter.
Connect the phone/iPad placed to the transmitter using a USB Cable.
Top View
Back view
Remove the drone from the box and remove the gimble cover from the camera and insert the propellers to the motors and lock them.
Note:- Carefully remove the camera holder.
Red Edge (RE): 730 nm
Near-Infrared(NIR): 840 nm
Green(G): 560 nm
Visible light (RGB)
Red (R): 650 nm
Blue (B): 450 nm
Insert the fully charged battery in the slot
Open the Landing pad and place the drone on the Landing pad.
Note:- Unfold the landing pad.
Note:- The Multispectral camera will capture 6 images at each scene.
Open the flight plan & start the mission
Upload the image here.
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Upload is completed!
Note:- Click on the check button of Upload, to process the captured data.
Note:- Click on the check button of Upload, to process the captured data.
Note:- Click on the check button of Upload, to process the captured data.
Observation:
For the flight mission carried following are the observation:
Area surveyed: 1.28 Acre
No of batteries: 1
Front overlap: 85%, Side overlap: 80%
| Flight height (m) | Resolution (cm/px) | Flight Time (min) | No of Images |
|---|---|---|---|
| 45 | 2.4 | 8.18 | 912 |
| 55 | 2.9 | 6.22 | 630 |
For the surveyed area, vegetation indices varies as follows:
| NDVI | NDRE | GNDVI | |
|---|---|---|---|
| Highest value | 0.964912 | 0.857142 | 0.972602 |
| Lowest value | -0.948718 | -0.714286 | -0.923077 |
Both ends of the pipe must be trimmed to ensure parallel faces.
