Abstract: “Intelligent automatic traffic control for ambulance”. The


              Road traffic congestion becomes a major issues
for highly crowded metropolitan cities like, Chennai .Ambulance service is one of the major services which gets affected by
traffic jams.  To smoothen the
ambulance movement this paper have come up with the solution of “Intelligent automatic traffic
control for ambulance”. The proposed system creates a
android app  that connects both the
ambulance and the traffic signal station using cloud network.  This system makes uses Beacon  technology
to implement the Intelligent traffic 
signal  control . The basic idea
behind the proposed system is, if the Ambulance halts on the way due to a
traffic signal, BEACON installed at the traffic signal tracks the BEACON tagged
ambulance and sends the data to the cloud. After the acknowledgment  for the user through the mobile app, the
particular signal is made Green for some time and after the ambulance passes
by, it regains its original flow of sequence of signaling  If, this scheme is fully automated, it finds
the ambulance spot, controls the traffic lights. This system control the
traffic lights and save the time in emergency periods.  Thus it acts as a life saver project.

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BEACON, cloud Database, mobile
app, Microcontroller 8051,LCD Display, GPS Tracking System, Intelligent














            I. INTRODUCTION:


The main concept behind the paper 
is to provide a smooth flow
for the ambulance to reach the hospitals in time and thereby minimizing the
delay caused by traffic congestion. The 
Microcontroller based Beacon system is used to alter the traffic lights
upon its arrival at traffic light junction which would save a lives at  critical time.
Radio Frequency Identification is a tiny electronic gadgets that comprise of a small chip and an antenna. The small
chip is embedded with information’s 
about  patience’s status and the
ambulance current lane .The BEACON reader 
located at the traffic signal reads these information from the BEACON
locator installed  at the ambulance . To avoid unnecessary traffic
signal changes, we cross refer the ambulance current location and patience’s
condition using mobile app registered by the ambulance driver.. In case of
network failure, the BEACON takes
the whole control.

This paper seems to be in a great need to make free flow of
ambulance without stucking into the traffic. In the current situation itself, transportation
of a patient to hospital in emergency
conditions seems quite simple but in actual it is very difficult during peak hours. Moreover, the situation is gets  worse when emergency vehicles have to wait
for other vehicles to give way at intersections with traffic signals . As the
survey aye 95% of the heart attack cases can be treated , if the ambulance can
reach the hospital at current time without stucking  into the traffic. In future it may get even
worse . In this cause Recovery action need to be
taken immediately. So, for our over populated environment ,there is a real need
for this paper for the society to make easier day to day transportations. This
paper will help to reduce blockage of emergency vehicles in traffic and helps
to provide immediate recovery.

aim of installed the  paper is to provide
communication between ambulance and various devices at traffic signals and  so that the possibility for traffic
congestion is reduced.

In this paper we contribute an overall system to
meet the above need. It can be achieved by                                    making use
of two major technologies namely,


mobile app with cloud access and GPS provided

BEACON is to track the arrival of ambulance at traffic up to some
Mobile app to authenticate emergency and non-emergency conditions of
GPS to track the nearest traffic signal post to the ambulance and to
send the app data to that particular signal post.
The data from BEACON and app can be given to the microcontroller to
process the results and makes the signal change according to the result.

and mobile app integrate to serve the system without failure at any manner by
alternatively working when other fails in its action.

paper helps in saving victims from the peak hour traffic. When it is being
implemented it can act as a live saving project.  



four road intersection is a bottle neck for each urban traffic control. Several
smarter methods need to be implemented for effective traffic management.

already existing system for Intelligent Traffic Control System(ITCS) proposed
in 2 for emergency vehicles
implements signal change by using IR sensors or BEACON technology.They don’t
have an alternative method to  control
the flow, if anyone of the technology fails. They don’t survey whether the ambulance
is in emergency state or not. Because ambulance may also used in non-emergency
situations to provide facility to humans due to their health condition. In such
cases ,time limits are not considered. so 
it is not needed to make change in signals of traffic control system in
non-emergency cases. so in this paper special implementation for non emergence
condition as been included.

The proposed work on 1 provides the basic connective
between cloud data ,traffic post and the ambulances.  Microcontroller based intelligent ambulance system which can alter the
traffic lights upon its arrival at traffic light junction was proposed on 2.   The work in 9 proposed
a  traffic control system based on the
wireless sensor network and an alerting system for red light crossing scenario
to alert the drivers on other sides to save their lives. This technique is
based on the queue length of the vehicles standing by the sides of traffic
post. The analysis  in 5 gives a Traffic control through
sensor based system implementation and its outcomes. The BEACON working
and principles were obtained from various site references work6,7.

Table: Existing
System comparison



our proposed system, we are trying to implement an intelligent traffic control
system for ambulance ,that comprise of the following phases:

(a)an android app:

provides four major options :

ü  Register –to register the ambulance to the

ü  Blocked – If BEACON reader fails, then after certain period of time
driver sends a “BLOCKED”
command to the server . At this case, based on server information the traffic
signal is cleared without verification.

ü  Emergency          

ü  Non emergency –The android app is used to
specify current status of the ambulance whether is in emergency or non
–emergency condition.

The mobile app is also provided with GPS to track the nearest traffic signal post to the ambulance and to
send the app data to that particular signal post.

technology :

BEACON uses a BEACON tag for each ambulance , antennas along the road and BEACON
reader at the signal post to track the position of ambulance.

 (c)cloud storage :

cloud system is used to store both app data and BEACON data and provides access
to the cloud whenever needed.


It acts
as the centralized system to make traffic control .The data from BEACON and app can be given to
the microcontroller to process the results and makes the signal change
according to the result.

system involves four scenarios as following:

Scenario 1:If an ambulance at
emergency is stopped by the traffic, then BEACON gives the ambulance data and
using app with cloud access which give value “emergency” by the user to
authenticate the change of signals in that lane to green and all other to red.

Figure 1: Basic flow change of

2:If an
ambulance which is not at emergency situation is stopped by traffic, then BEACON
gives the ambulance data and user gives value “not emergency” using the app to
cloud, by which the signal will not unnecessarily changes the flow.

Figure 2: Basic flow change of
signal during Non-emergence

Scenario 3: If an ambulance at emergency is
stopped by the traffic ,but the BEACON fails to work correctly ,then using the
app the value “blocked” is given to the cloud after the user receives timed out
notification by the app , which will make the system to work without failure by
changing the signals.

Figure 3: Basic flow change of
signal during BEACON Failure

                                                                                                       Scenario 4:If an ambulance at emergency is
stopped by the traffic ,but the network fails. So that we can’t access through
mobile app , at that condition BEACON makes the full role play by sending continuous
data to system over a long period of time, which makes the system to rum
massively by signal changing criteria.

4: Basic flow change of signal during
network failure

Thus by this alternate methods to
implement the system without failure can be done.


             A. BEACON Technology:

is a tiny gadget which uses radio waves to read and capture information of the
tracking object. It has three main components namely(1)tag, (2)antenna and (3)reader.
In our system, the tracking vehicle that is, ambulance is provided with the BEACON
tag which comprise of 3 fields to store the data.(a)EPC-Electronic Product Code
for vehicle ID number ,(b)type of vehicle,(c)road lane number. The antenna is
used to collect data from the tag and transmit it to the reader. The reader is
placed at some distance from the traffic signal, which may be mounted on road
or platform that reads the from the tag by propagating RF signals to and from
the object tag. After reading data from tag, reader sends it to traffic light

Figure 5:  Basic flow showing
connection of BEACON in the system.

B. BEACON circuit
in traffic signal:

BEACON is a tiny electronic gadgets
that comprise of a small chip and an antenna. This antenna sense the tagged
ambulance and alters the reader BEACON to get the vehicle unique identification
number. The received ID is passed to the database. After the authentication
from the server, the traffic signal is cleared for ambulance. In case of  network failure, generated BEACON is
programmed to clear the signal. In case of BEACON failure, based on the mobile
app command ,signals are activated. 


1. Retrieve status and device
ID  signals from the device using BEACON

2.Store the device ID in microcontroller.

3.Get the device status from the
cloud server.

4.microcontrollor program is
written to satisfy all four conditions discussed above.

5.Based on the requirement traffic
signal is changed to green


C. Integrating BEACON
Reader with                

BEACON reader which contains the vehicle details of the approaching ambulance
need to be connected with the microcontroller. The BEACON reader contains 9
pins configured. The 7th pin which contains the ambulance details is connected
with the microcontroller. Here 8051 microcontroller with 40pins is used. The
7th pin of BEACON reader is connected with p3.5(15th pin) of the
microcontroller. To display the details in LCD the output pins of
microcontroller i.e., from p0.0 to p0.7 is connected to D0 to D7 pins of LCD

6: Circuit showing architecture diagram at
traffic light post

D. Android Mobile
App :

Today we are living in an society where our
thinking is not possible without Smartphone’s. So in this paper, Android app is
developed  to provide additional
information about the patience’s status(EMERGENCY button present in his mobile
app) and current location using GPS system 
to the server database. The server in turn sends location and status
information to the traffic signal controller. The traffic signal is changed
,after cross verification from the BEACON reader. If BEACON reader fails, then
after certain period of time driver sends a “BLOCKED” command to the
server . At this case, based on server information the traffic signal is
cleared without verification. Current location is sensed using GPS installed in
the mobile. GPS or Global Positioning System is a network of orbiting satellites
that send precise details of their position in space back to earth. The current
location information is send to the traffic signal controller through cloud. Hence,
the app as basically four buttons


7: Basic Application development

E. Over All application implementation:

backend – Java SE JDK v6.0

frontend – Java SE JDK v6.0

Tools -android studio
(android development),Android SDK tools

Database -mysql


8: Data flow from cloud to traffic signal




       Human life is  precious and must follow safety measures very
conscious in all aspects this of course includes ambulances services too. In
this, by using intelligent ambulance system we can achieve the uninterrupted
service of the traffic control system by implementing the alternate methods for
signal change to allow flow control. The accuracy of the BEACON is more than Camera’s
so our proposed paper also improves the performance of traffic light Violation Detection
System. This system is cost effective ,multiple usage and deployed using
trending IOT ,which is more efficient.

 This system will reduce accidents which often
happen at the traffic signal intersections because other vehicles have to
huddle to give way to the ambulance services. This life saver project must be
implemented in the traffic forums to aid the public in good manner



            We are thinking to extend our idea
by implementing shortest location and way to hospital, to treat patients and
also alert the recommended Doctor in that hospital by providing initial medical
details of patient like BP, blood group, heart rate, etc..which will merit the
treatment more comfortable and reduce the time delay. Facility to store details
of several patients over long periods of time can be provided in cloud

                   VII. REFERNCES:

1 Paper on”
Automated Emergency System in Ambulance to Control Traffic Signals using,


8 Traffic Congestion
Detection and Control using BEACON Technology Niketa Chellani#1,Chirag

#1 Student, Electronics
and Telecommunication Dept, TSEC, Mumbai University  


Alan Benksy, “Short-range Wireless Communication”, Communications Engineering
Series, by Newnes, Elsevier Inc., 2nd edition


Patrick J.Sweeny II, “BEACON for Dummies”, by Wiley Publishing Inc.

Faisal A. Al- Nasser, Hosam Rowaihy “Simulation of Dynamic Traffic control

based on
Wireless sensor network”, IEEE Symposium on Computers & Informatics 2011,

IoT  “Dr.
A. Balamurugan1, G. Navin Siva

 Kumar2, S. Raj Thilak3, P.

 Professor,Sri Krishna College of Technology,

Coimbatore – 42,
Tamilnadu, India


2 Paper on
“An Intelligent Ambulance with

Some Advance
features of Telecommunication

 “Pratyush Parida1, Sudeep Kumar Dhurua2,

 P. Santhi Priya3


3  http://mbaigBeaconreport.blogspot.com/






by Mr.S.Iyyappan 1,


6 Sensor node and
BEACON information via





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