Cameras are a little bit different to other IoT devices. Here�s why.
Eyeballs v Algorithms
With CCTV cameras, the output is images. Don�t bother trying to get data from them, it�s expensive and disappointing.
Instead, use images for what they�re good at?�?transmitting information into the human brain.
Let the IoT device trigger the event, then look at the images.
That�s the root of the issue, now here are some details:
Connection Protocols
Unlike every other IoT device, high bandwidth requirements mean that cameras don�t use Bluetooth or Zigbee. We even advise customers to avoid WiFi.
Communication Protocols
This is not a place for MQTT or ZeroMQ. Like with the connection protocols cameras are often sending in the region of 1mb/s streaming video and so the protocols designed for small amounts of intermittent data aren�t appropriate.
Cloud v Edge
It�s easy & cheap enough to take the output of a temperature sensor, polling every minute, and store it for almost infinity. With live streaming video, that would start to get expensive. As the survivor of a cloud CCTV business (Camba.tv) I learnt the hard way that it makes more sense to store your video locally, if you can. Now, with 64Gb SD cards on the camera, you can.
Privacy & Data Protection
I can store year�s worth of air quality readings or voltage measurements without worrying too mcuh about personal privacy infringements. A jpeg containing a face or a number plate is quite a different story.
Impact
Sometimes, this: Tide Status: 1.3 just doesn�t cut the mustard quite like this:
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