Our favorite hardware development platform is BeagleBone Black.
It is a SoC computer similar to RaspberryPi,
but it is much more suitable for industrial use compared to RaspberryPi.
The advantages of BeagleBone:
4 GB eMMC disc
— also sold in industrial design
— contains 2 PRU processors (for realtime applications requiring very precise timing)
— contains many peripherals (timers, PWM, serial ports, input and output pins, ADC)
— easy development of expansion boards
— a large community.
FotobotHW
Cape 4x232, box, BeagleBone Industrial, power supply, software.
Videostreamer
Videostreamer converts video from few cameras to format suitable for web pages
and large number of users.
Can be mounted to DIN rail. Power consumption up to 10 watts.