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Mini project about smart helmet that detects accident

Now a days most of the countries are enforcing their citizen to wear helmet while riding bike and not to ride bike when the person is under the influence of alcohol, but still rules are being violated. In order to overcome this problem, “Smart helmet for bike riders ” is developed. It consists of an intelligent system embedded into the helmet and the vehicle. Helmet unit ensures that rider is wearing helmet and not under influence of alcohol through out the ride. It communicates with vehicle unit to switch oignition system of bike if above condition is not met. Vehicle unit checks and intimates accident through geometric coordinates via SMS. By using geometric coordinates, location of the injured rider can be traced using simple GPS tracking application. Also, this system provide theft protection as helmet is also essential along with key to start bike.
Motivation
The road accident is one of the major problems all over the world. The recent report says that the annual average road accident is estimated to be about 7, 00,000 and the annual statistics revealed by the World Health Organization (WHO) in its Global status report on road safety says that around 80,000 people are killed on roads due to rush driving, drunken driving and less usage of helmets. Also, most of the countries are forcing the motor riders to wear the helmet and not to use the vehicles when the person is in drunken condition. To overcome problem, a system called smart helmet for bike riders is introduced.
Objective of the project
The objective of project is to design intelligent helmet system which ensures wearing of helmet and prevent switching ON bike if rider is under influence of alcohol throughout the ride. The system detects accident and intimate relatives through geometric location of rider via SMS. In addition it protects bikes from being stolen as helmet is also essential along with key to start ignition system of bike.
Design
The system mainly consists of two major units as shown 1. Helmet Unit 2. Vehicle Unit
Figure: Helmet Unit
The Eye-blink sensor senses the wearing of helmet by receiving reflected rays by cornea per minute and the gas/alcohol sensors senses the alcohol in the breath. If the quantity of alcohol is less than the permissible limit and rider is wearing helmet then the required criteria is met and the signal is sent from the helmet unit to the vehicle unit through Arduino board. Upon receiving proper signal from the helmet unit through Arduino as shown in figure below, vehicle unit starts ignition system of bike. In case accident occurs then the vibrator sensor present in the vehicle unit senses change of frequency caused due to impact of accident and it turns off relay in order to turn-off vehicle. If rider is conscious or in case of false accident detection, rider can turn off ignition key to avoid unnecessary message to relatives else, GSM module will send message with geometric coordinates using GPS module.



The developed “Smart helmet for riders ” efficiently ensures:
  1. Rider is wearing helmet through out the ride.
  2. Rider should not be under influence of alcohol.
3. Accidentdetection&theftprevention
By implementing this system a safe two wheeler journey is possible which would decrease the head injuries during accidents and also reduce the accident rate due to driving bike after consuming alcohol. A helmet may not be a 100% foolproof but is definitely the first line of defense for the rider in case of an accident to prevent fatal brain injuries. The proposed approach makes it mandatory for the rider to use this protective guard in order to drive a two-wheeler vehicle and ensures the safety of the human brain and therefore reduces the risks of brain injuries and deaths in case of an accident. Besides, the developed system prevents theft of the two- wheeler. In future this intelligent system can be fabricated in a compact size so that it is globally acceptable to notify No entry and No parking areas. By implementing such mechanism in two wheeler, deaths due to driving under influence of alcohol and other road fatalities can be minimized to large extent.

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