International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 03 | March -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
PASSISVE SAFETY SYSTEMS FOR BIKE VIA HELMET R. REWANTH [1] , M. SAKTHI GANESH[2] 1 Student, 2 Student,
Department of Automobile Engineering, Sriram Engineering College, Tamil Nadu, India Department of Automobile Engineering, Sriram Engineering College, Tamil Nadu, India
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Abstract - Multiple active safety systems such as ABS and
speedometer to the wheel. This will feed data to the Arduino board. The second step is to check whether the helmet is worn or not, hence we use a FSR sensor which will send digital data to the board. An MQ3 alcohol sensor is used to detect whether the rider is drunk or not and it sends the information to the Arduino board.
Stability program are used presently in most two-wheelers. However, there isn’t any passive safety system which makes the rider vulnerable during accidents. Even though the helmet which riders use is a passive safety system, most people ignore them as it is optional. The following project design will make the helmet compulsory for a bike while riding past a posted speed limit of 30kmph and prevent the rider from “drink and drive”. The helmet has a physical sensor and an alcohol sensor which is connected to the Arduino board using a RF Module as wireless link which communicates between the board and the sensor. If the rider rides past the pre-designated speed limit of 30kmph without wearing the helmet or if the rider is drunk, ignition would turn off. preventing the rider to travel at high speed without protection and will prevent serious injuries in case of any accident. The design consists of a “Helmet Holder” which the component in which the helmet can be placed while the vehicle is at rest. It has an inbuilt lock in the holder, this way the helmet will always be in contact with the bike, so that the rider does not ignore or forget the helmet.
The above components are controlled by a microcontroller, Arduino Uno and a signal transmission unit using RF concept.
2. TECHNICAL STUDIES 2.1 Force Sensing Resistor (FSR) Force Sensing Resister is placed at inside the helmet where the actual human touch is sensed. It determines by helmet unit that whether helmet is worn or not. If this condition will satisfy or not satisfied, then it sends the signal to bike unit. Force Sensing Resistors, or FSRs, are strong polymer thick film (PTF) devices that resistance is inversely proportional to force applied to the face of the sensor. This sensor is used as human touch control in various applications. Such as medical systems, automotive electronics and in robotics and industrial applications. Force sensing resister is two-wire sensor with a resistance that changes on applied force. The resistor RM is selected to maximize the required force sensitivity range and to limit current. Here we use 10 kΩ of measuring resister
Key Words: Riders safety, Passive safety system, Speed Criteria.
1.INTRODUCTION In recent times, helmets have been made compulsory in India. Traffic accidents in India have increased year by year. As per section 129 of motor vehicle act 1988, makes it a requirement for every single rider riding a two-wheeling to wear protective headgear following standards of the BIS (Bureau of Indian Standards). In India riding without a helmet is an offence of the motor vehicle act of 1988, which states that the rider will be punished. The main purpose of helmet is to protect us during from head injuries during an accident. In addition, most of them tend to forget their helmet in their homes, therefore in order to make sure that the helmet is always in contact with the bike, there will be a helmet holder placed on the petrol tank will help the rider to place and lock the helmet when the vehicle is parked, so that the helmet is present in the bike at all times.
FIG -1: FORCE RESISTING SENSOR
These are the main issues which urged us to develop this project. The first step is to measure the vehicle speed which is done by connecting a digital
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