wireless robotic communications over 800 meters

jimbobreski55 over 1 year ago

Hi there

I'm new to the community. I am interested in vision systems and wireless communications for robotic agriculture

Please submit a link to assist me in this endeavor

Thanks

Jim B

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Gough Lui over 1 year ago +1

Depends on your application - I would personally recommend the use of Wi-Fi but in a mesh AP configuration to cover the area of interest if the terrain is difficult. If there is good line of sight, then…

dougw over 1 year ago

You could use LoRa if you don't need to send a lot of data.
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BigG over 1 year ago in reply to dougw

Yes good option. There is LoRa 2.4GHz, which could work well here although bandwidth might still be an issue.

www.semtech.com/.../lora-connect
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jimbobreski55 over 1 year ago in reply to BigG

Thanks
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e14phil over 1 year ago

I think the suggestions for LoRa are very good! you should check out our Smart Agriculture ebook eBooks
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Jan Cumps over 1 year ago in reply to e14phil

It can be a good solve, if jimbobreski55 can keep the vision systems image handling on the local device, and only needs to send telemetry data over long distance. In that case, this may well be the most affordable solution.

For long distance high bandwidth wireless, I don't think there are affordable out-of-box options.
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balajivan1995 over 1 year ago

You have two options

1) Sub 1 GHz modules (LoRa or wi sun )

2) 2.4GHz module - ESP Now (cheapest option)
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Jan Cumps over 1 year ago in reply to balajivan1995

balajivan1995 said:
2.4GHz module - ESP Now (cheapest option)

Will that get over 800 meters?
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balajivan1995 over 1 year ago in reply to Jan Cumps

You will have to set up multiple intermediate modules that will serve as intermediate relays.
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Gough Lui over 1 year ago

Depends on your application - I would personally recommend the use of Wi-Fi but in a mesh AP configuration to cover the area of interest if the terrain is difficult.

If there is good line of sight, then having a central point with some high gain sectorial panels may be enough to reach quite a distance. Ideally, if both ends had steered beams, you could go further.

Really depends on the application - but keep in mind, when stuff like Mikrotik/Ubiquiti wireless point-to-point is used, distances over 16km are achievable. Point-to-multipoint setups can often achieve a couple of kilometers.

Data rates, reliability will all factor in as well. Sometimes, if there is cellular phone coverage, it can be cheaper to use that and VPN into your own cloud than to build your own infrastructure. For low rates, LTE-M could be a good compromise between cost and power consumption.

- Gough
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