Locking and Unlocking of Theft Vehicles Using CAN (Theft Control System) Manjunath T K Research Scholar, Dept. of SCSE VIT University, Chennai Campus Chennai, INDIA -600048 itsme.tkm@gmail.com Andrews Samraj Director Advance Science & Technology Research Center Salem, INDIA -636001 andrewsmalacca@gmail.com N Maheswari Associate Professor,Dept. of SCSE VIT University,Chennai Campus Chennai, INDIA-600048 maheswari.n@vit.ac.in Sharmila Chidaravalli Assistant Professor, Dept.of CS&E AIeMS Bangalore, INDIA-562109 c.sharmila11@gmail.com Abstract—Avoiding Vehicle Theft is making buzz in present automobile industry. Design and development of a theft control system for an automobile, can be achieved by making use of GPS feature of mobile phone. The developed system makes use of an mobile phone that is embedded in the vehicle with an interfacing to Engine Control Module(ECM) through Control Area Network (CAN) Bus, which is in turn, communicated to the ECM. The vehicle being stolen can be stopped by using GPS feature of mobile phone and this information is used by the owner of the vehicle for future processing. The owner sends the message to the mobile which is embedded in the vehicle which has stolen which in turn controls the vehicles engine by locking the working of the engine immediately. The developed system accept the message and broadcasted to the Vehicle Network through CAN Bus. The engine can be unlocked only by the owner of the vehicle by sending the message again. The goal behind the design is to develop security for vehicles and embedded system to communicate with engine of the vehicle. Keywords—Controller Area Network Bus ; Engine Control Unit ; Vehicle Network ; Mobile Phone ; GPS ; GSM ; Theft Control Unit I. INTRODUCTION Today’s Automobiles, invariably comply with digital control systems as a consequence of constant growth in technology. Recent Vehicles contains large number of Electronic Control Systems and already there are large numbers of Electronic Control Units present [1]. The growth of automotive electronics is the result parties of the customers wish for better safety and greater comfort and also for other requirements like improved emission control and reduced fuel consumption. Electronic Control Units (ECUs) are increasingly being deployed in automobiles to control one or more electronic subsystems to realize various functions .When someone drives a car there are many signals that are passed between the various ECU’s embedded inside the car. Output signals from an Electronic Control Unit contain information about the current state of the car as the driver interacts continuously with the car. A modern day automobiles can consists up to 80 ECU’ s, sensing and taking tabs of the various parameters of the automobiles [2]. This rapid and complex exchange of signals ensures the proper functioning of the car. Automotive industry uses Controller Area Network (CAN) as the in-vehicle network for the Engine Management, the body electronics like door and roof control, air conditioning and lighting as well as for the entertainment control. Nowadays all most all car manufacturers have also started implementing CAN based vehicle automation.CAN networks used in engine management to connect several ECUs [2]. A vehicle tracking system combines the installation of an electronic device in a vehicle, or fleet of vehicles, with purpose-designed computer software atleast at one operational base to enable the owner to track the vehicle's location. Collecting data in the process from the field and deliver it to the base of operation. The terms cover a range of products which, by use of communications technology, or a combination of technologies, identify a stolen vehicle and its real-time location and present this information to a Systems Operating Centre (SOC) or to the police. Tracking systems also continue to update the data and differentiate between a particular stolen vehicle and all other vehicles, which may or not be stolen. It is recognized that such systems may be a facility within fleet management/logistics systems or part of services known as vehicle telemetric. Modern vehicle tracking systems commonly use GPS technology for locating the vehicle and also other types of automatic vehicle location technology can also be used. Vehicle information can be viewed on electronic maps via the Internet or specialized software. Proceedings of 2013 International Conference on Green High Performance Computing March 14-15, 2013, India 978-1-4673-2594-3/13/$31.00 ©2013 IEEE ICGHPC 2013