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Agricultural UAVs

Commercial use of drones in farms and other agriculture

Members: 1022
Latest Activity: on Friday

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Looking for NDVI sample data from plantations for research project

Started by Philipp. Last reply by WILSON DUARTE May 3. 10 Replies

Hi all,I'm geoscientist and drone pilot, but have recently started to improve my GIS and remote sensing skills by attending some advanced GIS courses. One of the courses requires me to complete a…Continue

Thermal or IR based stock counting?

Started by David Viaene. Last reply by Dave McALLISTER May 2. 33 Replies

So before I start this, please let me know if I am reiventing the wheel. If there are already reasonable solutions out there please stop me and let me know!Our farms have cattle and sheep. I would…Continue

Honeycomb Drones for sale

Started by Giovanni Tonti Apr 7. 0 Replies

For sale 2 honeycomb drones, for more info go to www.honeycombcorp.com ,one new,one factory refurbished they are complete ready to fly with surface pro 3…Continue

NDVI NGB Modified Camera Configuration

Started by Benjamin Meltzer. Last reply by Dennison Mar 31. 6 Replies

Good morning everyoneWe have recently purchased a NGB converted camera (NIR, G and B channels) with the goal of observing different vegetation indices (DVI, NDVI, SAVI, etc) from UAV-captured images.…Continue

Tags: Camera, NGB, NDVI

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Comment by Cristian Miuta on May 2, 2017 at 9:21am

Update!

As well we start assembling the battery packs for heavy UAVs, with the new automotive cell type NCR20700A 30A and NCR20700B 15A (next generation li-ion cells for battery of electric car Tesla Model 3)

See the chart with some configurations on www.uavfpvbattery.com


100KM
Comment by Hein du Plessis on April 30, 2017 at 3:49pm

That's great - perfect for my fixed wings! Go Tesla ;)

Comment by Luc Maximilien on April 30, 2017 at 8:44am

You should say that the NCR20700A cell at 20A has his capacity down to 2800mAh

and the rated 3300mAh capacity is only for 0.5A load.

These cells are not for heavy UAV but for ultra efficient UAV, it is a different thing.

Comment by Cristian Miuta on April 19, 2017 at 8:25am

6S9P90A Li-ion NCR18650GA battery pack for heavy UAVs. More info on www.uavfpvbattery.com

Comment by Cristian Miuta on April 19, 2017 at 8:16am

6S6P60A Li-ion NCR18650GA battery pack for heavy UAVs. More info on www.uavfpvbattery.com

Comment by Luc Maximilien on April 15, 2017 at 8:22pm

Cristian , I have work with Li-on batteries and I do not completely agree to what you wrote about.

- These are not "real" 6S packs since the maximum tension of Li-on battery is not the same of Lipo batteries, look at the graph belòw , the blue line fit best scenario.

- The pack capacity in real world is not 21Ah , looking at the datasheet by Panasonic it is quite clear that the usuable capacity correspond to voltage low as 3 volts, so lets say 3100mAh if you have 1C discharge rate, blue line.

These type of batteries can be used on drones with very high efficiency and low Ampère draw, should be around 1C during hovering so 2C during normal flight.

I have done some maths , and the example you gave with 70' flight 5kg AUW works only with a quad with 26" propellers and a 1200 grams payload.

Copters with "normal" props around 15-17" will raise the Ampère drawn and make these batteries type more and more difficult to use because of their maximum 3.1 C rate of discharge.

Comment by Cristian Miuta on April 15, 2017 at 11:29am

We can build battery packs virtually in any configuration and geometry, but basic we have three types of systems with 3-cell, 4-cell or 6-cell in series, and up to 15 cells in parallel (see chart from the order page) If you need another cell configuration, please don’t hesitate to contact us!

Web: www.uavfpvbattery.com

Comment by Cristian Miuta on April 9, 2017 at 6:45am

Panasonic NCR18650GA. Never compromise. Ultra durable

Battery quality is extremely important to us. We only use premium Panasonic NCR18650GA lithium-ion type cells (LiNiCoAlO2 chemistry), all same rank, in our battery packs. These kind of cylindrical cells used in electric vehicles Tesla, have at least 70% more energy density per weight, long lifespan and are less heavy than Li-Polymer types.

A battery pack for UAVs assembled with this cell type with specific energy up to 259Wh/kg, it is translated into a 70% longer flight time, or more heavy payloads!

Configuration examples:

6S6P60A
Specifications.
Cell count: 36
Cell type: Li-ion Panasonic NCR18650GA 10A
Battery pack capacity: 21Ah
Voltage (nominal) 22.2V
Maximum voltage: 25.2V
Power: 529Wh (calculated on 100% SoC / at maximum voltage)
Maximum continuous discharge current: 60A
Pulse (10sec): > 80A / 1770W – Burst discharge generates overheating of cells and if is not actively cooled may affect the lifespan of these.
Maximum recommended charge voltage (CV): 24.7V (for lifespan)
Maximum allowable charge voltage (CV): 25.2V
Maximum charging current (CC): 10A (for maximum energy storage)
Weight: +/- 1800g (including wiring harnesses, connectors & covering)
Physical dimensions: 23 x 5.5 x 7cm / 13,5 x 13 x 5,5 cm, or fully customizable on order.
Discharge connector (customizable): XT90, EC5 or 6.5mm Polarized Bullet Connector
Discharge wire type: Flexible silicone insulated copper 12AWG
Discharge wire length (pack to connector end) +/- 100mm
Balance plug: JST-XH 7-pin
Balance wire length (pack to connector end): 40mm
External, the battery pack are covered in Blue/Black PVC film (0.12mm). Inside, the cell block is surrounded with a laminated aramid fiber shield (0.50 mm).

Efficiency:
With this kind of battery (6S6P60A) fully charged, a special heavy lift drone used for emergency services or industrial purposes with weighing about 5kg including payload, can continuous fly for 70 minutes or to cover in-flight the equivalent of a surface of 100 hectares (1.000.000 m2)

These kind of battery packs is not protected by an electronic circuitry (BMS), it is manufactured for the use with a external charger with proper protection and balancing circuit for this kind of lithium-ion cells.

All battery packs are precisely designed and carefully assembled in the Netherlands by a CMEC technician , and are intended to use for heavy UAVs which are suitable for various industry applications, such as television broadcasting, signal relay, video surveillance, surveying and mapping, aerial photography, pipeline and powerline patrol, medical aids, agriculture.

More info:  www.uavfpvbattery.com

Comment by kane vincia on November 20, 2016 at 11:31pm

Benewake TF01 LRF

10m range

±5cm error

500Hz Frequency

IP65

Got all that you need.

Comment by Jose Barreiros on June 19, 2016 at 10:03am

As you, we are passionate about drones and agricultural applications. At the moment, we have developed a low-cost camera that would let you know about health of plants and crops through NDVI multispectral analysis.  The good news is that we will launch it by a crowdfunding project in Kickstarter. Here there are the main features of uSense camera.

 

To drive our product to the right market we would like to know your comments and thoughts regarding the next questions:

 

  1. Type of uses that you will do it with a camera like that.

 2. What are the features that you will love add it?

 3. How much you will be willing to pay?

 

Thank you for your comments, we appreciate the time and any link that you think could help us as well.

 

If you want to know more, don't hesitate to contact us!

Cheers,

 

uSense Team

usense@southmade.org

 
 
 

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