google driverless car
DESCRIPTION
Google driver less car is also known as autonomous car. It can travel from one point to another without any assistance from driver. It uses hardware sensors like LiDAR, position estimator, distance sensor, GPS, etc and Artificial Intelligence. Google map and Google street view are used for proper navigation. This technology reduces the traffic accidents and will make navigation more efficient.TRANSCRIPT
Driver error is the most common cause of traffic accidents
India contributes 6 % of the world's road accident deaths
Cell phones, in-car entertainment systems, more traffic and more
complicated road systems making it more frequent
By this improving technology our car will do the concentrating for us.
Integrates many of the googleapplication to run efficiently.
It is operated by automatic pilotesystem
It works with google map to provide minute information about the road
Hardware sensors to provide information about real time environment condition.
Artificial intelligence, real time decisions are taken with the help of this software
Google map uses GPS
Google map Google map interact with GPS &
provide accurate location as well as it act as the data base.
Speed limits are integrated with in the map which control the car to the restricted speed .
Provide upcoming intersection, direction, speed limit, etc.
Google Street View It provide street level images of
entire cities all around the world. The number and density of geo-
positioned images available make this service truly unprecedented
Real time updates are necessary to achieve maximum efficiency because of dynamic environment.
Hardware sensors are built around the car.
Provide full observable environment.
Main sensors:
> LIDAR
> Video Camera
> Position Estimator
> RADAR
> Distance Sensor
A spinning range-finding unit on top of the car is called LIDAR.
It has 64 lasers and receivers.
64 meter coverage and bandwidth 600-1000nm.
It creates a detailed map of the car’s surroundings as it moves.
For imaging of objects it uses UV, near infrared or visible lights.
Components that make up a LIDAR include:
> Laser
> Scanner and Optics
> Photo detector and Receiver electronics
> Position and Navigation systems
Video camera is used to capture traffic lights.
Information about traffic light helps to control the car on the road.
It offers 45&90 degree field of view.
It reads line marking
It determine vehicle’s location and track down its movement.
Ultrasonic sensors mounted on rear wheel of the car to monitor the movement of the car and this information is automatically updated .
It also assist self parking
Distance sensor is used to detect the presence of near by car or obstacles.
The sensor emits Electromagnetic waves and checks the changes in the return waves.
Short and long terms radars
for object detection
Four automotive distance sensors.
Google map and hardware sensors sends the data to the artificial intelligence.
Artificial intelligence is a key component that determines how fast car should accelerate, determine the moment to slow down/stop and determine when to take over the steering control of the wheel.
Processor employed in this car cross check all the information obtained from different sensors.
Anti-lock brakes(ABS)
Electronic stability control (ESC)
Cruise control
Self Parking
Automated Guided Vehicle
Systems
Increasing roadway capacity by reducing distance between the cars.
Reduce congestion by controlling flow of traffic
Can do works or rest while drive
Take itself to gas station and to get repaired/serviced down on costs of bus service
You can just click an app on you Smartphone to get a car to you immediately
Increase safety by reducing driver error
Fewer mechanical problems and breakdowns.
Decrease amount of import oil
Reduce urban greenhouse gas emissions by 80%
If the vehicle is using internet which is have less security then From the hackers point of view in some cases the vehicle can be switched off on the road(in rare cases)
Hackers can change the rout which is plotted in the system(in rare cases)
In case of failure of main sensor and backup sensors the vehicle can create a chance of accident
Costly
The driver less car’s technologies improves vehicle's stability helps to minimize loss of control.
Driver less cars are designed to minimize accidents by addressing the main causes of collisions: driving error, distraction and drowsiness.
http://en.wikipedia.org/wiki/Driverless_car
http://www.darpa.mil/our work
Electrical machines and automatic control by J.b.gupta
http://autocontrols.com.au/
http://www.howstuffworks.com/cruise-control