Abstract—With monitoring their vehicles in a convenient

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Abstract—With the emergence of new
technology and innovations, people are searching
smarter ways to protect/monitor their properties remotely. In accordance to
that, at present GPS based tracking system is frequently used in vehicle
tracking, children/pet tracking, aircraft tracking, any personal belongings
tracking, fleet management and so on. This paper introduces a Smart Anti-Theft
Vehicle System based on Internet of Things (IoT) for monitoring the movement of
any equipped vehicle from anywhere in real time. At the implementation of this
system, Global Positioning System (GPS), General Packet Radio Service (GPRS)
and Microcontrollers are used to enable users for monitoring their vehicles in
a convenient manner. This system provides the access to check the movement and
control (emergency stop by closing the fuel line) vehicles remotely by using
mobile application. The hardware prototype of the proposed system and the user
application for monitoring and controlling vehicles are presented in this

of things; Raspberry pi; Wi-Fi;


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 With the increase in applications of various
embedded technology, vehicle security system design and tracking are improving.
Many new techniques, like image processing, communication via biometric
recognition and so many interesting techniques have been implemented in vehicle
security systems. Simultaneously, the number accident of vehicles and vehicle
theft still remains high. We believe this system can create a better impact in
controlling accidents by monitoring over speed. Normally vehicle security
system depends on many sensors which are not affordable by everyone. It is
almost impossible to track a stolen or missing vehicle without the help of
sensors. So our paper aims to overcome the existing problem of vehicle theft by
monitoring and blocking the over speed vehicles without using sensors. The main
objective is to measure the signals and to interface them with HDMI monitor
which are then transmitted to the webpage through Raspberry pi to the traffic
constable and the vehicle owner’s Mobile using IoT. The Vehicle engine immobilizer
using GSM already exists. But it has drawbacks like, high roaming costs,
tampering of calls and need for an external module for interfacing
Microcontroller etc. By implementing IoT we can overcome these drawbacks.
Internet of thing (IoT) is an advanced technology which helps devices to stay
connected among them. Each and every smart device can communicate with each
other with the help of Network. Internet is used everywhere from small mobiles
till high end data servers. There are billions of devices which can be accessed
or connected using IoT as shown in Fig-1. They can be paired together and
exchange data across, or remote login to make life simpler. This paper presents
a combined effort to bring the Automotives & Android System together to
serve the Purpose of vehicle tracking. A smart phone has over-ruled almost many
devices together and now we can use the same for the purpose of Centre locking
the vehicle and tracing if missed. The proposed design provides information
regarding vehicle Identity, speed, and position on real time basis. These in
formations are collected by the raspberry pi and send to the control station
where it stores the information in database. The outline of this project is
that, the stolen vehicle’s data will be collected from the owner, and is given
to the police. Then the stolen vehicle’s data will be retrieved from the
database and transmitted to receiver (Raspberry pi). The receiver processes the
data which results in blocking of the engine. Also, to block over speeding vehicles,
the speed data is given from the transceiver and transmitted to the web page.
This information is used to block the over speeding vehicle.


Fig. 1 Block diagram
representation of interconnection of devices using IoT


Component Specifications

Raspberry Controller

 We use raspberry pi 3 in our project
as it has the added advantage of built in Wi-Fi. It is a credit card size computer. The power is about 1.5 watts
to 6.7 watts. It can perform like your desktop. The storage capacity is
MicroSDHC slot. It has a memory size of 1GB LPDDR2 RAM at 900 MHz. It is
designed with 256MB of SDRAM and model B is designed with 51MB.The Central
processing unit is the brain of the raspberry pi board and that is responsible
for carrying out the instructions of the computer through logical and
mathematical operations. The CPU memory is about 1.2 GHz 64/32 bit QUADCORE
ARMC. The raspberry pi uses ARM11 series processor, which has joined Samsung
galaxy phone. The GPU is a specialized chip in the raspberry pi board and that
is designed to speed up the operation of image calculations. This board
designed with a Broadcom video core IV and it supports OpenGL. The Ethernet
port of the raspberry pi is the main gateway for communicating with additional
devices. The raspberry pi Ethernet port is used to
plug your home router to access the internet. The connection options of the
raspberry pi board are two types such as HDMI and Composite. Many LCD and HD TV
monitors can be attached using an HDMI main cable and with a low-cost adaptor 4.


 Solid State Relay

A solid
sate relay is a switching device that toggles between on and off when an external voltage of small amount is applied across the control terminals. In this paper, it is used as a switch to identify over speed in case of
theft actions. The various specifications of solid state relay are as follows

Voltage: 24-380V AC

Voltage    : 3-32V DC

Current : 7.5mA/12V


Fig. 2 Solid State Relay

the voltage across the solid state relay, results in controlling the fuel flow to
the engine. Finally immobilization of the engine takes place when maximum speed
is reached, or when the theft action is detected.

DC Servo Motor

We use DC servo motor
as an indicator of Vehicle Engine in our prototype. A servomotor is
a rotary actuator or linear actuator that allows for precise control of angular
or linear position, velocity and acceleration. It consists of a suitable motor coupled to a sensor for
position feedback. The servomotor is
specialized for high-response, high-precision positioning. A rotation detector
(encoder) is mounted on the motor and feeds the rotation position/speed of the
motor shaft back to the driver.



Fig. 3

 Optocouplers or opto-isolators are used as a
safe passage between the high power circuit and the low power control circuit.
It is basically a signal converter between high 

Voltage pitot devices (limit
switches etc.) and low voltage solid-state logic circuits. They are mainly used
to prevent the damage of electronic components by isolating them from the high
voltages. It is just  an interface
between two circuits.


E.     Step down Transformer

A step
down transformer has less turns on the secondary coil than the primary
coil. The induced voltage across the secondary coil is less than the applied
voltage across the primary coil or in other words the voltage is stepped-down.
Transformers are mostly used to convert the 220 volts electricity to the 110
volts required in most domestic equipment. Copper windings are much more
efficient than aluminum and many other metal windings

Fig. 4 Step Down Transformer


F.     Wi-Fi Modem

 A wireless
modem is a modem that bypasses the telephone system and connects
directly to a wireless network, through which it can directly access
the Internet connectivity provided by an Internet service provider. It has
a range of 32 meters (105 ft). IoT is expected to offer advanced
connectivity of devices, systems, and services that goes beyond machine to machine (M2M) communications and
covers a variety of protocols, domains.


 Working of functional Blocks

Supply Block

 One of the basic building blocks of electronics
project is building your own DC power from an AC source of 110 VAC or 220 VAC.
The common DC voltages that are required to power up the devices are generally
in the range of 3 VDC to 30 VDC. Typically the fixed types of DC voltages are
5V, 9V, 12V, 15V and 18V DC. With the advancement of technology, many devices
are using 1.8 V DC these days. SMPS is becoming common these days as the demand
for miniaturization due to space constraints increases.

Take note that for
linear DC power projects, you need to use a step down power transformer to step
down the AC voltage from the line voltage of 110 VAC or 220 VAC before using it
to supply to the diode bridges.

5 Block Diagram of Power Supply Block


Variable 2 to
25V DC Supply : This project uses a LM338 adjustable 3 terminal
regulator to supply a current of up to 5A over a variable output voltage of 2V to
25V DC.


12V DC Power Supply: This project
uses a LM318 adjustable 3 terminal regulator to supply a current of up to 1.5A
with customized 12V DC Voltage.


Variable 5 to 15V DC Power :  This is
a simple DC regulated project using 7805 voltage regulator to obtain a variable
DC voltage range from 5V to 15V.

Variable 5 to 20V DC Power : Build your
own 5-20V DC power using National Semiconductor LM2941 low dropout voltage

Constructing a 12V DC Switch Mode Power :
Construct a 12 VDC, 120 mA switch mode supply from AC source of 85-265

USB Battery Charger Circuit :

This application circuit uses the MCP73853/MCP73855 linear charge
management controllers for cost sensitive applications. They are specially
designed for USB applications and adhere to all the USB specifications
governing the USB power bus.


The fuel Block is explained with the help of the block diagram above.
A webpage is created for data base retrieving purpose and is connected through
Wi-Fi to the Raspberry pi controller. An external power supply is given to the
controller as shown in the fig. Through IoT the controller is connected with
the Tank and then the tank is connected to the relay which later acts as a
switch for blocking fuel. A buzzer is connected with the fuel block so that an
advanced alert can be given to the drivers of other vehicle surrounding the theft
vehicle. This avoids accidents due to sudden immobilizing of the theft or over
speeding vehicles 1 3.


Fig. 6 Block Diagram of Fuel Block


 Over Speed Control Block

If the
output of the solid state relay is found to be 12 V then the information like
vehicle number and location are given to the web page through the transceiver.
This information helps the police to trace the Over Speeding vehicle and
thereby block it.

Fig. 7 Block Diagram of over Speed Control Block


The flow chart for the over speed
control process is given as follows.


Fig. 8 Flow Chart of Speed
Control and Blocking System

Categories: Management


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