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HOW AUTONOMOUS VEHICLES WORK
THE REQUIRED TECHNOLOGY
Traditional RADAR sensors are used to detect dangerous objects in the vehicle’s path that are more
than 100 meters away.
Video cameras are used to identify road markings and traffic signals.
Laser RADAR scans the car’s surroundings in a 100 meter radius, letting the car know what objects to avoid.
A global positioning system keeps the car on its intended route with an accuracy of 30 centimeters.
Some 7 dual-core 2.13 GHz processors and 2Gb of RAM are needed to make sense of the data collected by the car’s instruments. Some cars run as many as 17 processors to disperse the computing load.
HOW LIDAR WORKS
1. The emitter sends out a laser beam.
2. The laser bean bounces off a mirror that is rotating along with the cylindrical housing, at 10 revolutions per
3. After bouncing off objects the laser light returns to the mirror and is bounced back downward.
4. The light is focused onto a receiver where it can be interpreted into data.
5. The car can then generate a map of its surroundings and use the map to avoid objects.
HUMAN VS. COMPUTER
DISTANCE REQUIRED TO STOP
A human takes about 2 seconds to react and press the brakes!
l0mph - 27ft
30mph ------- 109ft
A computer takes about .3 seconds to compute and apply the brakes.
10mph - 18ft
30mph -------- 53ft
The human eye sees details equivalent to
The finest digital camera sensors today are around
All the microchips on Earth combined execute about
6.4 x 10 -18 calculations every second
That’s roughly equal to one human brain
TIME TO PREPARE
There have been a myriad of predictions as to when we will see the first autonomous vehicles on our roads.
GENERAL MOTORS - 2018
U.S. DEPT OF TRANSPORTATION - 2020
SEBESTIEN THRUN STANFORD - 2030
FORESIGHT - 2056
ROYAL ACADEMY OF ENGINEERING - 2019
VOLVO - 2020
DENNIS BUSHNELL - 2020
FREE UNIVERSITY BERLIN - 2040
2010 2020 2030 2040 2050 2060
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