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1. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
Mobile Phone Based Drunk Driving Detection
ABSTRACT:
Drunk driving, or officially driving under the Influence (DUI) of alcohol, is a major
cause of traffic accidents throughout the world. In this, we propose a highly efficient
system aimed at early detection and alert of dangerous vehicle maneuvers typically
related to drunk driving. The entire solution requires only a mobile phone placed in
vehicle and with accelerometer sensor. A program installed on the mobile phone
computes accelerations based on sensor readings, and compares them with typical drunk
driving patterns extracted from real driving tests. Once any evidence of drunk driving is
present, the mobile phone will automatically alert the driver or sends a message to
predefined number in application for help well before accident actually happens.
FEATURES:
 Uses the accelerometer sensors from Android mobile to match the Drunk and
drive pattern.
 Automatically sends a message for Help.
 Displays on the Screen a message.
ANDROID:
Android is a software stack for mobile devices that includes an operating system,
middleware and key applications. The Android SDK provides the tools and APIs

2. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
necessary to begin developing applications on the Android platform using the Java
programming language.
ANDROID ARCHITECTURE:
The following diagram shows the major components of the Android operating
system. Each section is described in more detail below.
SYSTEM ARCHITECTURE:

3. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
WORKING PROCEDURE:

4. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
MODULES:
1) Lateral Acceleration Pattern Matching
2) Longitudinal Acceleration Pattern Matching
3) Multiple Round Pattern Matching
4) Detection Performance
5) Sending data Alert SMS
MODULES DESCRIPTION:
1) Lateral Acceleration Pattern Matching
The lateral acceleration pattern matching is based on the value of Alat. The pattern
which shows remarkable changes of acceleration values reveals the abnormal curvilinear
movements of the vehicle. That is when the vehicle is making the curvilinear movement,

5. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
it has a sudden lateral acceleration toward one side, and then a lateral acceleration
toward the other side.
2) Longitudinal Acceleration Pattern Matching
Similarly, the longitudinal acceleration pattern matching is based on the value of Alon.
The problems in speed control, i.e. the vehicle acts abnormally in either accelerating or
decelerating direction, result in a large absolute value of Alon, making a salient convex
or concave shape in its graph of curves.
3) Multiple Round Pattern Matching
Multiple round pattern matching will increase the accuracy of drunk driving detection.
The cues related to problems of lane position maintenance or problems of speed control
provide evidences of drunk driving. The single lateral acceleration pattern matching or
longitudinal acceleration pattern matching can indicate these two kinds of problems
respectively. Each of the two detection algorithms based on the above two acceleration
patterns may achieve a fairly high detection accuracy, above 50% in most cases, and
around 45% in some cases. Nevertheless, the combination of observed cues from lane
position maintenance and speed control problems can provide much stronger evidence
for drunk driving. So we use multiple round pattern matching in the detection algorithm
design.

6. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
4) Detection Performance
We study the performance of detecting drunk driving related behaviors, since drunk
driving can be directly inferred by the accurate detection of these abnormal driving
behaviors. We measure the detection performance in terms of false negative (FN) and
false positive (FP). False negative happens when drunk driving related behaviors show
up but the device misses them. False positive happens when the device reports drunk
driving related behaviors but the vehicle is actually under regular driving conditions. In
general, the lower the both FN and FP are, the better the performance is.
5) Sending data Alert SMS
In this module, based on the variation of directions an alert messages is sent to the
Owner with a data say car number or any etc.
SYSTEM REQUIREMENTS:
HARDWARE REQUIREMENTS:
 System : Pentium IV 2.4 GHz.
 Hard Disk : 40 GB.
 Floppy Drive : 1.44 Mb.
 Monitor : 15 VGA Colour.
 Mouse : Logitech.
 Ram : 512 Mb.

7. Softroniics
Softroniics www.softroniics.in
Calicut||Coimbatore||Palakkad 9037291113, 9037061113
SOFTWARE REQUIREMENTS:
 Operating system : Windows XP.
 Coding Language : Java 1.6
 Tool Kit : Android 2.2
 IDE : Eclipse
CONCLUSION:
In this paper, we present a highly efficient mobile phone based drunk driving detection
system. The mobile phone, which is placed in the vehicle, collects and analyzes the data
from its accelerometer sensors to detect any abnormal or dangerous driving maneuvers
typically related to driving under alcohol influence and sends a message for help.