Personal Black Box? Vuze+ Camera MAY do much of the work?
jdb10987 at yahoo.com
Mon Jun 15 16:55:47 PDT 2020
I've done some more research, and it seems that existing components could do a substantial part of this project. Consider the Vuze camera, specifically the Vuze+. https://vuze.camera/
It has 8 cameras, in four pairs, aiming in the horizontal plane, and is able to use them to record stereoscopic views. https://vuze.camera/camera/vuze-plus-camera
This MIGHT be even better than I anticipated. This device refers to recording data on SD cards. Great, unless the device is smashed or stolen. I consider it to be an essential part of this device that it port a substantial fraction of the data away from the cameraman, perhaps many tens of meters away. But it mentions WiFi: Does that mean that the entire data stream can be transmitted? Even if the data can be only transmitted 'nearby', say 30-100 meters away, by WiFi, that would be a great feature.
The specification sheet https://images-na.ssl-images-amazon.com/images/I/91Hcr5ModJL.pdf mentions a data rate of 120 MB/second or 80MB/second. Note that it's MB, meaning megaBYTE per second, not merely megabit/second.
The specs say that the data is written to a SD card. Can this be expanded using a 1 terabyte (or larger) SSD? Unclear. The data is compressed to MP4.
It also mentions: WiFi IEEE 802.11b/g/n 2.4 GHZ
I can tell, from: https://en.wikipedia.org/wiki/Wi-Fi that WiFi4, 802.11n can do a link from: "72-600 million bits per second".
Already, I see a hitch: Does this mean that this device can transmit 80MB x 8 bits, or 640 megabits/second, since the link can only go to "600 million bits per second".
While it would be nice to be able to transmit the entire data stream locally, as long as all that stream goes into a local SSD, I suppose it would be okay if "only" half the data, say 320 megabits/second, were transmitted by WiFi to another portable system carried by a different person a few tens of meters away. But one question I have is this: Can the data stream be readily 'split up', so that only a portion of it is transmitted? Or is it an 'all or nothing' sort of thing?
And I think it's important that a smaller fraction of the data be transmitted by 4G or 5G cell data.
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