Levandowski built an automated car that drove from San Francisco to New York without any human intervention. The 3,099-mile journey started on 26 October on the Golden Gate Bridge, and finished nearly four days later on the George Washington Bridge in Manhattan. The car, a modified Toyota Prius, used only video cameras, computers and basic digital maps to make the cross-country trip.The system does not use laser-ranging lidars like those that Levandowski helped to develop at Waymo, Otto and Uber.
Pronto.AI’s driving technology uses only six video cameras, pointing to the front, side and rear of the vehicle, and each with a much lower resolution than those found in modern smartphones. Images from the cameras are fed to the trunk, where a computer is running two neural networks: artificial intelligence systems that can speedily process large quantities of data.
One network recognizes lane markings, signs, obstacles and other road users, and extracts information about their position and speed. The second takes that information and controls the driving, using digital signals and mechanical actuators for the throttle, brake and steering.
A seventh camera faces inwards, watching the human driver to ensure that they are keeping their eyes on the road. Should the driver look away, nod off, or pull out a cellphone, the system sounds increasingly strident alerts and could ultimately be programmed to stop the vehicle.
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