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Noise Mapping with KSQL, a Raspberry Pi and a Software-Defined Radio

115 pointsby h3throwabout 6 years ago

10 comments

antirezabout 6 years ago
<JOKE> As the author of dump1090 I'm going to change the license to require that it is always used together with Redis Streams and not with Kafka. </JOKE>
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Anechoicabout 6 years ago
I&#x27;d be curious to see how this compares with a real-time flight track&#x2F;noise monitoring system ( <a href="https:&#x2F;&#x2F;webtrak.emsbk.com&#x2F;lax4" rel="nofollow">https:&#x2F;&#x2F;webtrak.emsbk.com&#x2F;lax4</a> at LAX for example).
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whalesaladabout 6 years ago
This is killer. I’ve been wanting to do something similar to figure out why I have Bluetooth and WiFi connectivity issues at random parts throughout the day. I’m thinking there is some kind of interference and would like to prove that.<p>This post will serve as a model for that. I’ve had an SDR and a few old Pis lying around for years... time to dust them off.
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Cynddlabout 6 years ago
&gt; The Raspberry Pi is a little underpowered for serious computation, so I need to offload processing to my local Kafka cluster.<p>Couldn&#x27;t this be done on the Raspberry Pi with a O(n) search in the OpenFlights data? Probably less sexy, but a simple grep with location and time range should be enough.
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towawayzoneabout 6 years ago
I know I&#x27;m completely missing the point, but how does knowing which plane is upsetting your cat help with the situation? Are you going to report them to the FAA or something?<p>P.S. Coming up with examples for things in computer science that aren&#x27;t absurd is hard. I had to think of an example when I was explaining junction tables for many-to-many relationships to someone the other day. After a minute or so of thinking, I just fell back on that old standard of books and authors.
minitoarabout 6 years ago
At first I thought this was about mapping noise around the San Carlos airport, identifier &quot;KSQL&quot;.
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nimishabout 6 years ago
&gt; The Raspberry Pi is a little underpowered for serious computation, so I need to offload processing to my local Kafka cluster.<p>The RPI includes purpose built hardware for DSP in the VideoCore so, probably not.<p>Poe&#x27;s law in action I suppose.<p>I&#x27;m all for big data but this is a case of nuking a fly.
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3xblahabout 6 years ago
When I hear the term &quot;ksql&quot; I think of Arthur Whitney&#x27;s ksql and the early days of kdb, which dates back to the 90&#x27;s.
jo-wolabout 6 years ago
Everything is great in this post except ksql license.
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legionof7about 6 years ago
I&#x27;ve been seeing so many Raspberry Pi projects on HN lately. It&#x27;s great! I just got a Zero W and have a B+ lying around that I don&#x27;t know what to do with.