International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
EVENT DATA RECORDER IN AUTOMOBILE Aqib Jamal, Abhijith P2, Adil M Basheer3 123EEE Dept,Mar Athanasius College of Engineering,Kothamangalam,India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract Nowadays accidents are increasing. Many new
vehicles are being added on the road each day. This also increases the amount of accident. The vehicles are fitted with airbags, anti-lock breaking system and many such things. But in order to do any research or development, there is a need for the knowledge of the real cause of an accident. The accident may occur due to the mistake of others or due to driver itself. The presently available features which are in corporated into vehicles are GPS tracking and mapping. The IEEE has also introduced some standards in this regard. The system proposed is like a black box, implemented inside a vehicle. The proposal of the IEEE association is audio and video logging and engine parameters such as the temperature, brake conditions, sharp turn, torque of the vehicle etc. This is analogous to a black box but such costly devices cannot be incurporated into a car as such systems will cost more than the car itself. Moreover there is no alert system. So an initiative to design a data logger as an emergency alert system was made. This initiative was made because of delayed medical help and relief. It also decreases the cost so as to make it affordable to vehicle of all ranges. The accident is sensed physical collision and when such an accident occurs an alert message is sent to a pre-stored mobile number. The exact position of the vehicle at the time of an accident can be located using the GPS module. So medical help to those people can be provided as soon as possible
1. INTRODUCTION Road accidents are so common in everyday life and it costs us so much in terms of money and vehicular hardware, but a much more value is given to the humans involved in the accident. In a world where an automobile is not anymore a luxury but a necessity, overcrowding of these vehicles is one of the causes of accidents. But through a deeper evaluation, it could be found that most of the accidents happen due to driver faults, vehicular faults and adverse road or climatic conditions. In the past, there have been many studies about road accidents and methods to avoid them. Innovative concepts such as blink sensor technology, drunken driver technology, steering wheel grip technique etc. has been proposed and implemented. But despite of all these efforts, accidents keeps happening. Instead of concentrating directly on avoiding the accidents, an event data recorder is installed in the automobile which records all the vehicular data at the time, before and after the crash. This vehicular data can be retrieved from a vehicle after a crash, which can be studied and analysed later |
Impact Factor value: 5.181
2. HARDWARE IMPLEMENTATION The following hardware and circuit sections are used to design and implement this project. 2.1 INERTIAL MEASUREMENT UNIT An inertial measurement unit (IMU) is an electronic device that measures and reports a body’s specific force, angular rate, and sometimes the magnetic field surrounding the body, using a combination of accelerometers and gyroscopes, sometimes also magnetometers. IMUs are typically used to maneuver aircraft, including unmanned aerial vehicles (UAVs), among many others, and spacecraft, including satellites. Recent developments allow for the production of IMU-enabled GPS devices. An IMU allows a GPS receiver to work when GPS-signals are unavailable, such as in tunnels, inside buildings, or when electronic interference is present. A. Accelerometer
Key Words: Automobile, Safety, Emergency alert
© 2017, IRJET
Event data recorder has various practical applications. It can be used to deduce the pattern of accidents at a particular situation and prevent it from happening again by taking necessary precautions. Event data recorders are very helpful for insurance companies because study of crash parameters helps them to allow or deny the claim for the accidents as the event data recorder holds the proof. And it is useful for the police, as they can find out what really caused the accident.
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An accelerometer is a device that measures proper acceleration; proper acceleration is not the same as coordinate acceleration (rate of change of velocity). Accelerometers in free fall (falling toward the center of the Earth at a rate of about 9.81 m/s2) will measure zero. An accelerometer measures proper acceleration, which is the acceleration it experiences relative to freefall and is the acceleration felt by people and objects. An accelerometer at rest relative to the Earth’s surface will indicate approximately 1 g upwards, because any point on the Earth’s surface is accelerating upwards relative to the local inertial frame (the frame of a freely falling object near the surface). To obtain the acceleration due to motion with respect to the Earth, this ”gravity offset” must be subtracted and corrections made for effects caused by the Earth’s rotation relative to the inertial frame. B. Gyroscope A gyroscope is a spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself. When rotating, the orientation of this axis is unaffected ISO 9001:2008 Certified Journal
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