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do the cars have some serious computer hardware or is it really good code/cloud assisted computation? Maybe ANN's active while driving?
by ge96 10y ago
do the cars have some serious computer hardware or is it really good code/cloud assisted computation? Maybe ANN's active while driving?
- chillydawg 10y agoIt must all be local. You couldn't possibly rely on any kind of network link for a hard realtime task like driving.
- ge96 10y agoYeah would-be neat to have them "globally connected" to Tesla, not sure why you would want that.
- verbify 10y agoI believe it's onboard, they have an onboard GPU - cloud-assisted would have latency problems and would also have problems in tunnels and areas with bad reception.
- ge96 10y agoWhy do you say GPU? I'm vaguely aware that GPU is far superior at multitasking unlike a CPU.
- srssays 10y agoTo be pedantic, GPUs are no better than CPUs at multitasking. GPUs are best at performing one task on a moderately large set of floating-point data (SIMD). The Tesla vehicles use cameras, ultrasonics and radar. So they are processing graphical data (a video stream) and signal data. That's exactly the kind of task that GPUs are good at. However, this only gets you as far as perceiving the world. The vehicles also have to decide which action to take -- following the traffic laws of the jurisdiction they are in -- which is exactly the kind of branchy imperative task that CPUs are good at and GPUs are terrible at.
- OliverJones 10y ago> cars have some serious computer hardware Yes, that's it. Signal processing for forward looking radar, forward and backward looking cameras, and side-looking sonar sensors. Definitely local. Cloud wouldn't work. The Teslas have LTE data links, but their latency is grossly unpredictable.
- aidenn0 10y agoI believe they use a midrange PowerPC for doing the computation; not any more compute power than an average laptop.
- dharma1 10y agoNew Teslas have Nvidia PX2 which is very fast. Can easily run deep neural networks realtime https://blogs.nvidia.com/blog/2016/10/20/tesla-motors-self-driving/ https://blogs.nvidia.com/blog/2016/10/20/tesla-motors-self-d... Not sure what HW their previous cars had
- greglindahl 10y agoThe previous Tesla had a Tegra 4, which also powered the 17" touchscreen, and a Tegra 3 powering the instrument panel.