Mike Governale
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  • Raleigh, NC
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Started this discussion. Last reply by Randy Nov 12, 2013. 12 Replies

Help! My HEX crashed from a FAILSAFE / DISARM event in mid flight!I have been successfully flying Quads & Hex's with previous firmware versions of Arducopter using APM 2.5 boards until Saturday…Continue



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About Me:
Now full time with Aerobot Services.

45 years in computer systems design and development.
Please tell us a bit about your UAV interest
Developing a full suite of services deploying several multicopter special purpose frames along with motorized gliders for large terrain videography, and image mapping.

We have selected 3DR Robotic's to supply our flight control systems along with mission planning.
Raleigh, NC

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Our website ...  http://www.aerobotservices.com

Mike Governale's Blog

NDVI Wheat Crop Surveys - Behind the Scenes Video & Panoramic

Posted on April 16, 2015 at 2:31pm 8 Comments

The video above attempts to provide a "Behind the Scenes" view of how we are capturing the NDVI composite images while working with a local farmer and a section of his wheat crop.

The on board video, captured images, along with…


Comment Wall (3 comments)

At 10:43am on April 17, 2015, RPM said…

Thanks for the reply. I had expected this was what you were doing.


At 2:42pm on April 19, 2015, Eric Coronel said…

The parameter is WP_YAW_BEHAVIOR = 0. If the stitching software you are using works well then there's no reason to change anything. It is a personal preference of mine to have all pictures facing in the same direction.

At 11:32am on April 22, 2015, Alexander said…

Hi Mike, 

Thanks for your great reply. I hadn't checked this site for a few days and am glad to have seen your response. 

Likewise with me, I work with two local farmers here in Thunder Bay. This season we will be measuring different fungicide and herbicide control measures against each other to determine how effectively disease/stress can be mapped. We are looking at barley and wheat- both of which as susceptible to similar cereal diseases- and flying a fixed-wing equipped with a multispectral sensor which goes from visible to NIR. The concern at the moment is with the limitation of the sensors. With multispectral in the VNIR region I anticipate to detect stress induced by fungal pathogens such as fusarium or stripe rust-- but the concern is whether timely detection is possible. Most farmers are using preventative fungicides which are applied much before visible symptoms- and potentially before anything in the VNIR spectrum will indicate oncoming disease. So we hope to detect something before the typical blanket application of fungicides. If not, we hope to detect lingering stress- or lingering disease like fusarium in ripe wheat which can introduce toxins into the harvest yield--these infected grains can be discarded from harvest.  

Hyperspectral would be a dream to detect specific stressors- but the sensors are too expensive at the moment so we are left with multispectral- where we can simply detect and ground-truth our targets as a work-around solution. 

Thermal is a great idea- I think some people are finding in-situ constant thermal measurements to be most ideal- since you can detect disease by slight temperature change in leaves. Remember you also need to monitor the environmental temperature change as well over time. Im curious to see your results with thermal and how it detects for irrigation patterns. 

Ill keep you up to date this season with my work Mike. Thanks! I always love talking about this stuff. 



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