Long Distance WiFi

[NRAWhite]

Hi all,

So I will give you all a background on the project. I am part of an FSAE team called Oxford Brookes Racing (shameless plug to our website - https://obr.brookes.ac.uk/). I am part of the controls team and last year we developed wireless telemetry using an Arduino and an XBee. This year, after it being a very unreliable connection we are looking at using a WiFi network to send all our data. If we have a fairly standard laptop the receiving end, what kind or AP would i need to be looking at to get about 1-2Km of range? Thanks for all the help!

[79wjd]

No normal AP would be able to do it, you would need something like this: 

 

[NRAWhite]

1 minute ago, djdwosk97 said:

No AP would be able to do it, but Linus made a video about using a dish to project a wifi signal. 

 

 

The dish would be great, but it has to be attached to the care to be able to send the data. Any ideas?

[2FA]

I think making use of some form of cellular connection would be your best bet.

[Squish4058]

How much are you willing to spend

 

https://www.ubnt.com/products/

[Mikensan]

Really depends what's between the 1-2km that will dictate what you use. Honestly that's a pretty significant distance. You may end up having to use microwave to achieve decent speeds. Post above me linked to basically the same thing.

[Guest]

Can you clarify your requirements? Is it simply a 2Km link where you need a wired connection at both ends? Or do you have a wired connection at one end at need wireless provided at an area 2Km away?

[NRAWhite]

Just to clarify, we will have the AP or similar on the car itself and use a laptop to connect to it. We will be at a racetrack, so basically and airfield with very little other than distance between the laptop and the car. I hope this helps.

[Guest]

13 hours ago, NRAWhite said:

Just to clarify, we will have the AP or similar on the car itself and use a laptop to connect to it. We will be at a racetrack, so basically and airfield with very little other than distance between the laptop and the car. I hope this helps.

Unfortunately that's not practical to do with a single AP - you'd need a mesh of AP's across the track to provide wireless coverage.

[leadeater]

Sounds like you would be better off using a Arduino 3G/4G shield and send the data that way than try and setup a large wireless network, at least this way it's totally portable within cell tower coverage.