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#1
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Some questions on the legality of Wifi
I've heard that Wifi isn't permitted at competitions, but I'm somewhat unsure as to the exact limitations of it.
I want to put a hotspot in our pit at competition this year so that pit scouting can be done on mobile devices and uploaded to a central server. Then, ideally, we can do some statistical analysis to look at our best matches. I was wondering if 5ghz APs are allowed in the pit area? If not, are there any other IP-over-RF encapsulation methods that are compatible with most mobile devices and tablets? I do realize that we could upload data over cellular, but it wouldn't work very well for us this year because we're traveling to Canada and roaming data is expensive. |
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#2
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Re: Some questions on the legality of Wifi
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I'm considering using bluetooth, but the range goes down a lot |
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#3
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Re: Some questions on the legality of Wifi
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Bluetooth may be an option, but it's rather short-range. |
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#4
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Re: Some questions on the legality of Wifi
As a programmer, working with bluetooth is really hard compared to hosting something like a webserver. That's why I wasn't too interested in it...
I've looked into options to have a wired connection to the device, but most tablet-compatible ethernet connections are pretty bulky. The other option is to buy some kind of alternate RF module and then write a custom stack to handle comms, but that would be way more work than we need this season. |
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#5
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Re: Some questions on the legality of Wifi
The field uses 5g. Any use of that spectrum in the pits will be frowned upon.
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#6
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Re: Some questions on the legality of Wifi
In conjunction to what everyone else on this thread has said in regards to the violations. Your best bet, at the regional or even before, speak with the Head Regional Director or the field guys to see if they have a spectrum you may borrow while at the competition whether its at a certain time or not.
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#7
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Re: Some questions on the legality of Wifi
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#8
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Re: Some questions on the legality of Wifi
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#9
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Re: Some questions on the legality of Wifi
Our team has been using a scouting app for the past 3 years, and we have tried many different ideas for data transfer. We have stuck to the tethered transfer, so that we don't break any rules, and it's a quick transfer for a lot of data.
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#10
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Re: Some questions on the legality of Wifi
I saw this during CES: http://cassianetworks.myshopify.com/...c51803009fe0b5
It could be a very good solution since it can handle up to 22 devices and a 1000ft radius. If any teams end up using it, they should post their results here or somewhere. I'm really curious about this product. |
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#11
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Re: Some questions on the legality of Wifi
T4 is completely unambiguous.
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#12
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Re: Some questions on the legality of Wifi
Even though you'd still be dealing with the issues of range, you could create a Bluetooth PAN network between your tablets for sync up. Bluetooth PAN gives each device an IP address that you could use to run a web server on. To solve the distance issue, have your pit scouters take down data and save it locally to their tablet/phone/device (via the app YOU make), then have them meet with the head scout (during lunch or a match break) and connect to the head tablet/computer via Bluetooth PAN. From there, use your app to sync the stored data and send it to the web server in whatever fashion you like.
EDIT: If you plan on using all Android tablets, make sure they are running 4.0 or later, and do the following for each: On the PAN host: Enable bluetooth tethering in the settings (If the host is a tablet, you may not find this feature. Try an app like BlueVPN if you're setting it up on a tablet.) On each device: Pair with the host and enable "Internet access" in the bluetooth device's tab. (This will allow LAN communications between devices). Credit to ce4 on StackExchange for the answer. If you so choose, you can also use this method to share Web access from the PAN host (if it is a cell phone) to your PAN devices. Last edited by EmileH : 19-01-2016 at 09:40. |
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#13
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Re: Some questions on the legality of Wifi
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#14
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Re: Some questions on the legality of Wifi
There is a time to think outside the box. Then there is a time to think inside the box.
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#15
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Re: Some questions on the legality of Wifi
Could you use a Farady cage instead?
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