Thursday, 19 December 2013

Brain Controlled Car For Disabled Using Artificial Intelligence

1. INTRODUCTION
The video and thermogram analyzer continuously monitor activities outside the car. A brain-computer interface (BCI), sometimes called a direct neural interface or a brain-machine interface, is a direct communication pathway between a human or animal brain (or brain cell culture) and an external device. In one-way BCIs, computers either accept commands from the brain or send signals to it (for example, to restore vision) but not both. Two-way BCIs would allow brains and external devices to exchange information in both directions but have yet to be successfully implanted in animals or humans.
In this definition, the word brain means the brain or nervous system of an organic life form rather than the mind. Computer means any processing or computational device, from simple circuits to silicon chips (including hypothetical future technologies such as quantum computing)

Once the driver (disabled) nears the car. The security system of the car is activated. Images as well as thermo graphic results of the driver are previously fed into the database of the computer. If the video images match with the database entries then the security system advances to the next stage. Here the thermo graphic image verification is done with the database. Once the driver passes this stage the door slides to the sides and a ramp is lowered from its floor. The ramp has flip actuators in its lower end. Once the driver enters the ramp, the flip actuates the ramp to be lifted horizontally. Then robotic arms assist the driver to his seat. As soon as the driver is seated the EEG (electroencephalogram) helmet, attached to the top of the seat, is lowered and suitably placed on the driver’s head. A wide screen of the computer is placed at an angle aesthetically suitable to the driver. Each program can be controlled either directly by a mouse or by a shortcut. For starting the car, the start button is clicked. Accordingly the computer switches ON the circuit from the battery to the A.C.Series Induction motors.

2. BIOCONTROL SYSTEM

The biocontrol system integrates signals from various other systems and compares them with originals in the database. It comprises of the following systems:
  • Brain-computer interface
  • Automatic security system
  • Automatic navigation system
  • Now let us discuss each system in detail.

AUTOMATIC SECURITY SYSTEM
The EEG of the driver is monitored continually. When it drops less than 4 Hz then the driver is in an unstable state. A message is given to the driver for confirmation and waits for sometime, to continue the drive. A confirmed reply activates the program for automatic drive. If the driver is doesn’t give reply then the computer prompts the driver for the destination before the drive.

AUTOMATIC NAVIGATION SYSTEM
As the computer is based on artificial intelligence it automatically monitors every route the car travels and stores it in its map database for future use. The map database is analyzed and the shortest route to the destination is chosen. With traffic monitoring system provided by xm satellite radio the computer drives the car automatically. Video and anti-collision sensors mainly assist this drive by providing continuous live feed of the environment up to 180 m, which is sufficient for the purpose.

ADVANTAGES
The main advantage is self driven transport for people with physical disabilities.
The advanced features of this car includes
• Global navigation system
• Anti collision
• Weather forecasting system
• Car security system

DISADVANTAGES
1. Its not cost effective.
2. It can carry only one person
3. Multi operations cannot take place
4. It hard to take action on the spot

SPECIALTY OF THE CAR

  • Once the driver (disabled) nears the car. The security system of the car is activated.

  • Robotic arms assist the driver to his seat, As soon as the driver is seated the EEG helmet is placed on the drivers head

  • Images as well as thermo graphic results of the driver are previously fed into the database of the computer.
CONCLUSION
When the above requirements are satisfied and if this car becomes cost effective then we shall witness a revolutionary change in the society where the demarcation between the abler and the disabled vanishes. Thus the integration of bioelectronics with automotive systems is essential to develop efficient and futuristic vehicles, which shall be witnessed soon helping the disabled in every manner in the field of transportation.

REFERENCE
1. 'Off-line Classification of EEG from the "New York Brain- Computer Interface (BCI)" Flotzinger, D., Kalcher, J., Wolpaw, J.R., McFarland, J.J., and Pfurtscheller, G., Report #378, IIG-Report Series, IIG: Institutes for Information Processing, Graz University of Technology, Austria 1993.

2. "Man-Machine Communications through Brain-Wave Processing" Keirn, Z.A. and Aunon, J.I., IEEE Engineering in Medicine and Biology Magazine, March 1990.

3. Automotive engineering, SAE, June 2005

4. Automotive mechanics , Crouse , tenth edition , 1993.
5. "The brain response interface: communication through visually-induced electrical brain responses" Sutter, E.E., Journal of Microcomputer Applications, 1992, 15: 31-45.

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