Electronics

ABSTRACT

Most of the car accidents that happen in the streets are alcohol-related crashes, the driver is drunk. The researchersare developing a system which can detect if the driver is drunk or not.The Driver Alcohol Detection Systems for Safety will measure the blood content of the driver in two possible ways, through a driver’s breath or through the skin. This is done by the use of sophisticated touched-based sensors that would possibly be placed in the door locks or steering wheel.
The researchers conducted its first public demonstration of the alcohol-detection system that could measure if the driver has reached the blood alcohol limit of .08. If the system detected the alcohol content of the driver is above the limit, the vehicle will not start. In a test demonstration, let’s test a man who drinks 3 1/2 ounce glasses of vodka and orange juice about 30 minutes apart, eating some cheese and crackers in between to imitate a critical social setting. After that, using the touched-based and breath-based prototypes they found out that a man has an alcohol content of .06 thus he can start the car. Though the system is 99.9% reliable, some of the groups are questioning the .08 limit since the blood alcohol content rises during a trip, also to some factors such how recently the driver is drunk and how much he/she ate. This system is still needs a long process though they predict that this is the option for future cars.
Future technologies are expected to be much faster and less intrusive, requiring no active involvement from the driver. Essentially, the technology will be invisible to drivers, so that sober drivers wouldn't be inconvenienced.
In our alcohol detection system the ignition of the fuel is regulated by a sensor circuit. The sensor circuit is used to detect whether alcohol was consumed by the driver recently. Our design also consists of a body perspiration rate sensor which is used to check whether alcohol is consumed while driving.

INTRODUCTION...