In this presentation, Swetha presents an innovative solution that aims to solve traffic problems in the country. Her solution uses sensors to collect information and relay the information to users over a mobile app.

1. IoT in Smart Phones for Detecting and Controlling
Vehicle Traffic
 Name: Swetha.J
 E-mail: swethaj94@gmail.com
 Twitter Id: @jothyswetha
 University: Pondicherry
University
 Year/Semester: III/VI
 Branch: Information
Technology

2. ABSTRACT
Internet of things(IoT) is the interconnection of uniquely
identifiable embedded computing devices within the existing
infrastructure. It also uses the wireless sensor networks which is a
group of specialized transducers with a communications
infrastructure for monitoring and recording conditions at diverse
locations. The proposed system(Vehicle Traffic Monitoring) has a
central microcontroller at every junction which receives data from
tiny wireless sensor nodes place on the Road. The received data is
then transmitted to the smart phones of the user from the
Microcontroller.

3. EXISTING SCENARIO
 Traffic research has the goal to optimize traffic flow of people and
goods. As the number of road users constantly increases, and
resources provided by current infrastructures are limited, intelligent
control of traffic will become a very important issue in the future.
 However, some limitations to the usage of intelligent traffic control
exist.
 Avoiding traffic jams for example is thought to be beneficial to both
environment and economy, but improved traffic-flow may also lead
to an increase in demand.
 There are several models for traffic simulation. we focus on
optimization of traffic light controller in a city using IR sensor and
developed visual monitoring using microcontroller .

4. PROPOSED SCENARIO
 The first and primary elements of this system are the wireless sensor
nodes or motes consisting of sensors and transmitter.
 The sensors interact with the physical environment means vehicles
presence or absence while the transmitter sends the sensors data to
the central microcontroller.
 This system involves the 4*2 array of sensor nodes in each way. This
signifies 4 levels of Traffic and 2 lanes in each way.
 The sensors are ultrasonic or an Infrared based optical sensor which
transmits status based on presence of vehicle near it.

5. PROPOSED SCENARIO (Cont.,)
 The sensor nodes transmit at specified time intervals via ZigBee
protocol to the central microcontroller placed at every
intersection.
 The Microcontroller receives the signal and computes which road
and which lane has to be chosen based on the density of Traffic.
 The computed data from Microcontroller is then transmitted to
the smart mobile thro the bluetooth connectivity.
 The controller makes use of the discussed and planned algorithm
to perform the Intelligent Traffic routing.
 In this system, the primary aim is to gather the information of
moving emergency vehicles based on WSN to provide them a
clear path till their destinations and traffic signals should switch
automatically to give a clear way for these emergency vehicles.

6. SYSTEM ARCHITECTURE

7. HARDWARE AND SOFTWARE REQUIREMENTS
 Microcontroller kit
 Infra Red Sensor
 LCD display
 Wireless Network(Bluetooth,ZigBee,Wifi,etc.)
 LED lights
 Regulated Power Supply
 Android Mobile

8. ANDROID APP
 The Android operating system is a multiuser Linux system in which
each app is a different user.
 By default, the system assigns each app a unique Linux user ID (the
ID is used only by the system and is unknown to the app). The
system sets permissions for all the files in an app so that only the
user ID assigned to that app can access them.
 Each process has its own virtual machine (VM), so an app's code
runs in isolation from other apps.
 By default, every app runs in its own Linux process. Android starts
the process when any of the app's components need to be executed,
then shuts down the process when it's no longer needed or when the
system must recover memory for other apps.

9. ANDROID APP (cont..,)
App Components
 Activities
 Services
 Content providers
 Broadcast receivers

10. CONCLUSION
 The optimization of vehicle control is done using sensors
and microcontroller .
 We tries to reduce the possibilities of traffic jams, caused by
traffic lights.
 No. of passing vehicle in the fixed time slot on the road
decide the density range of traffics and on the basis of
vehicle count microcontroller decide the traffic light delays
for next recording interval.
 The recorded data can be downloaded to the computer
through communication between microcontroller and the
computer.

11. FUTURE ENHANCEMENT
 This system can be used to inform people about different
places traffic condition data transfer between the
microcontroller and computer can also be done through
telephone network , data call activated SIM.
 This technique allows the operator to gather the recorded
data from a far end to his home computer without going
there.
 Traffic lights can be increased to N number and traffic light
control can be done for whole city by sitting on a single
place

12. THANK YOU