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Friday, 5 April 2013

Driverless Car

Autonomous Car

An autonomous car or Personal autonomous vehicle, informally known as a driverless car, robotic car, or self-driving car, is a self powered  car capable of automated driving and navigating entirely without direct human input. 

Automated vehicles sense their surroundings with the help of techniques as radar, lidar, GPS, and computer vision.  Advanced control systems interpret sensory information to identify appropriate navigation paths, as well as obstacles and relevant signage. 

Numerous major companies and research organisations have developed working prototype automated vehicles including  Google, Continental Automotive Systems, BOSCH, Nissan, Toyota, AUDI, and Oxford University. 

Google Driverless Car
The most prominent of these is Google Driverless Car project. The project is currently being led by Google engineer Sebastian Thrun, director of the Stanford Artificial Intelligence Laboratory and co inventor of Google Street View. The team developing the system consisted of 15 engineers working for Google, including Chris Urmson, MIke Montemerlo, and Anthony Levandowski who had worked on the DARPA Grand and Urban Challenges.




The project team has equipped a test on  least ten vehicles consisting of six Toyota Prius, an Audi TT, and three Lexus RX450h modified with Google's experimental driverless technology. Have now completed more than 300,000 miles(482,803 km) of testing , covered a wide range of traffic conditions, and hasn't been a single accident under computer control.
To provide the best driving experiences they are working on snow-covered roadways conditon, interpret temporary construction signals and handle other tricky situations that many drivers encounter. 

Google's driverless test cars have about $150,000 including a $70,000 lidar (laser radar system). The range finder mounted on the top is a Velodyne 64-beam leaser.

Vehicular Communication Systems.
  
Ford is researching on Vehicular Communication System for semi- autonomous driving with greater interaction between cars.The cars will use a computer programs that will communicate directly with each car on the road.  With this system individual vehicles may benefit from information obtained from other vehicles in vicinity, especially information relating to traffic congestion and safety hazards.

Vehicular Communication System use vehicles and roadside units as the communicating nodes in peer-to-peer network, providing each other with information. As a cooperative approach, the system can allow all cooperating vehicles to be more effective.



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