We built a gun detector using machine learning that works with existing surveillance cameras.
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There are many companies working on this type of technology at the moment.  We made ours in 2018, and Chad visited my house in January 2019 to film most of this.  We didn't post it for various reasons, but decided now might be a good time.  The fidelity of the inference is a function of how you train it.... so obviously the more data points you provide, the better it will perform.  This particular type of machine learning is known as object detection, with the computation being performed by a deep neural network "on the edge".  The video stream is processed locally and no internet is needed to find the object in real time. If you're…

ZigBee — один из протоколов, который используют для домашней автоматизации. Его поддержкой наделяют умные лампочки, беспроводные выключатели, датчики движения и прочие устройства, которые повышают комфорт. Но насколько они безопасны? В этой статье я расскажу, как устроен ZigBee, и покажу, при помощи каких устройств и программ перехватывать его сигнал для изучения.