International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 03 Issue: 04 | Apr-2016 www.irjet.net p-ISSN: 2395-0072 © 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 1783 HELMET WITH ALCOHOL SENSOR MS Bhodoria 1 ,Ashish Kumar Gupta 2 ,Antra Upadhyaya 3 ,Keshav Kumar 4 ,Ekta Shroti 5 1 Assistant professor,Electronics & Comm. Engg.,Institute of information technology and management,Gwalior(MP) 234 Student,Electronics & Comm. Engg., Institute of information technology and management,Gwalior(MP) ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - Nowadays we have seen many road accident and drunken driving cases in our day to day life, especially for two wheelers riders. And the main reason behind this is not wearing helmet .Many people could save their life in accident cases if they were wearing the helmet at the time of accident. So to avoid these accidents a helmet is designed which consists of a limit switch and an MQ3 gas sensor. This project is undertaken to ensure road safety among two wheeler riders .It consists of an RF transmitter, RF receiver, Encoder and Decoder IC. The bike will not start if the rider is not wearing the helmet and it also does not get started if the rider consumes alcohol. when the rider wears the helmet an RF signal is transmitted which is received at the receiver end consisting of RF module receiver in the bike engine which ensures that the rider is wearing the helmet and also about the alcohol consumption by the rider. If any of the conditions are false, then the bike will not get started. Key Words: Encoder and decoder IC, RF Transmitter and Receiver System, MQ3 Gas sensor. 1. INTRODUCTION In today’s modern life, the craze of motor bikes is increasing in day to day life. In our country, there are majority of people who belong to middle class families and prefer to buy two wheelers over four wheelers. It also suits their budget. The craze of bike among youngsters is increasing day-by-day, especially among college going students. The different sports bikes are introduced by many companies in today’s competitive environment. The bikes are increasing on roads heavily, and due to this traffic on the roads is increased. And also the road mishaps are increased day by day, due to which many deaths occur, most of them are caused due to common negligence of not wearing helmet. This motivates us to think about making a system which ensures the safety of bikers, by making it necessary to wear helmet and no consumption of alcohol as per government guidelines. The project aims at the security and safety of bikers, against road accidents. Refusal to use of proper motorcycle helmets is a main factor contributing to the death from road crashes. So if it is made mandatory for the bikers to wear helmet when they ride the bike then the rates of these accidents can be expected to fall. The circuit is so designed that the bike won’t start without wearing helmet. The helmet described here once installed with any of the bikes forces the rider to wear it while riding, so whether there is any law or not biker will have to wear the helmet ensuring his/her own safety. The statics of law breaker is depicted below in table. Table 1:- Statistics of Law Breakers Law Breakers Two Wheelers Four Wheelers Signal Jumping 2,21,350 1,47,950 Drunken Driving 38,560 18,463 1.1 Objective of the project The objectives of the project are:- I. To design a circuit that can improve the safety of the bike riders. II. To design a helmet which ensures no alcohol consumption by the bike rider. III. To study and understand the concept of RF transmitter and RF receiver circuit in implementing the project. 2. PRINCIPLE OF OPERATION The helmet comes with two modules i.e. one receiver and one transmitter. The transmitter being embedded in the helmet, and the receiver module can be installed on any bike. At the transmitter end, the helmet consists of a limit switch and a gas sensor.