Hi,
I am planning to set up a surveillance system for a small warehouse,
comprising of several video cameras and some high-res stills cameras,
with video/stills being retrievable via a www server.
No webcams as these use up huge ADSL bandwidth. The ADSL will be low
cost 256/512 with one fixed IP to support a web server.
The video cameras would need to be low-light (hard to quantify but
basically low indoor domestic levels) which rules out the cheap
(sub-£300) webcams. I've played with a few (e.g. Axis 205) and they
really are poor. I have a choice of using conventional video cameras
(some of which are available down to 0.01 lux especially if B&W), or
ethernet or wireless connected ones. But sometimes the light level
will be almost sunlight.
None of the wireless ones I've seen have any security so I am
reluctant to use them because anyone with half a brain could easily do
a DOS attack on them. Running ethernet is a hassle but with wireless
ones one would still need to run power to each one...
The stills cameras could be consumer grade ~ 5 megapixel jobs,
connected via USB - is that possible with any of them?
I will also need to record video (can be low frame rates) for the past
2 weeks. A big hard drive in a PC...
One nice feature would be to detect movement, and then transmit jpeg
images by email, say every 10 seconds, until movement stops.
A nice but probably hard feature would be auto fallback to GPRS (for
the jpeg email transmission) if somebody cuts the BT cable.
Obviously the system itself will be in a sturdy box with a UPS inside.
Can anyone offer comments/suggestions on this? I've seen various off
the shelf systems but nothing quite what I want. I also don't want to
spend many thousands on it; I know what the parts cost.
Peter.
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