Collision Communication System
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This document describes a collision communication system that detects vehicle collisions and wirelessly transmits crash data and vehicle identification numbers (VINs). It uses an accelerometer to detect collisions and an Xbee transceiver to send data to other vehicles involved. The data is stored on an SD card and can also be read on an LCD display. The system is intended to help identify vehicles in hit-and-run accidents by logging collision details and VINs. A prototype was created using an Arduino, accelerometer, Xbee, data logger, and LCD display.
Collision Communication System
- 1. Collision Communication System Pantha Moni, Patrick Douglas, Sachin Mehta, Jacob Owens, Michael Kelly, Dipto Moni Introduction Design Summary • The ATmega328 microcontroller process and controls the collision data. • The MMA7361 3-axis accelerometer provides acceleration data which is compared to a threshold value in determining a collision. • Upon collision detection the device goes into a transmit receive mode and through an Xbee transceiver wirelessly sends VIN’s and crash data. • All vehicles involved in the crash store the crash data and VIN’s on an SD card that can be read at a later time. • The data can also be read through an on-device LCD for an immediate read in a hit and run situation. • The crash data consists of the time and date at which the threshold was reached and the magnitude in the 3 orthogonal directions. Methodology Prototype 1. http://punnone.wordpress.com/2011/12/14/zigbee_14122554/ 2. http://www.dx.com/p/mma7361-accelerometer-module-tilt-slant-angle-sensor-for-arduino-148861 3. http://skpang.co.uk/catalog/lcd-displays-16x2-lcd-33v-c-91_207.html 4. http://www.liquidware.com/shop/show/ARD-UNO/Arduino+Uno 5. https://solarbotics.com/product/18908/ 6. http://www.robot-italy.com/en/adafruit-assembled-data-logging-shield-for-arduino.html Concept University of Nevada, Reno Automated Vehicle Solution Acknowledgement Authors thank Yantao Shen, Richard Wilder, Toni Piazzo for sharing their prior experience and help during the work. As a cooperative approach, car manufacturers have long been a proponent of vehicular communications in order to provide a more effective way of avoiding accidents. However, these types of communications can fail a high percentage of the time—and they also do not provide as a weapon against immobile, parked cars. An alternative, however, that will give vehicle owners peace of mind is a wireless system that can transmit data upon collision with a parked vehicle. This data, or the fingerprint of the automotive realm—the Vehicle Identification Number— will be stored in the transmitters of only the vehicles involved in the collision and will be able to provide law enforcement, insurance companies, and vehicle owners details of accidents. SD Card Arduino Mega Top View Side View Xbee Tranceiver Data Logger LCD Figure 4: (From left to right) Arduino Mega, accelerometer, Xbee transceiver, data logger, and the LCD display used to develop the prototype Figure 2: Concept of the prototype where vehicle exchanges information upon collision. Figure 1: Flow diagram shows the system process of the prototype. References Future Work • Using car’s computer and existing accelerometers in the car. • Compact prototype. • Increase data transmission range. • Exchange GPS data. Figure 3: Flow diagrams shows the system process of the prototype.