Camera Hardware Rationale

increased driver visibility

can be turned off when not needed (only really needed in turning or lane change which is indicated by blinkers)

may be more feasible than guaranteeing more FOV with canopy

increased power consumption (depends on cam connection type)

more computation for r pi (may slow it down a lot)

needs more wiring over greater lengths

interface is commonly used for home security cameras so we know it’s good for video transmission

most cameras are IEEE 802.3af or 802.3at but we only need the base spec of 802.3af

need to transmit 48V as standard power

if we do use

interface is commonly used for webcams so we know it’s good for video transmission

we already use can for most other communication

is noise resistant due to the way it transmits a differential

typically operates at data rates up to 1 Mbps which is insufficient for video transmission

• 480p video 20 fps requires ~1.5 Mbps taking into consideration compression from video codecs

packet sizes are took small to be practical

• standard 8B packet is too small since a single frame of video will be ~60kB