SHRIDEVI INSTITUTE OF ENGINEERING AND TECHNOLOGY, SIRA ROAD, TUMKUR-572106
(An ISO 9001-2008 Certified Institution)
DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
Project Synopsis On
ALCOHOL DETECTION AND SECURITY SYSTEM FOR AUTOMOBILES
For the academic year 2011-2012.
PROJECT ASSOCIATES:
S No. 1. 2. 3. 4.
Name JONU JOSE MITHUN RAVINDRAN SHAMEER.A ANU MANOHAR
USN 1SV08EC063 1SV08EC032 1SV07EC046 1SV07EC007
(Name & Signature of Guide)
(Signature of HOD)
(Signature of the Principal)
INTRODUCTION:
The population of our country has been increasing rapidly which indirectly increases the vehicle density and leads to many road accidents. The aim of the project in to minimize the road accidents which causes the loss of invaluable human life and other valuable goods. Beside, the provision for the safety of the vehicle is also provided to avoid the theft action.In this fast moving world, new technologies have been evolved for every second for our human life style improvement. But there are lots of accidents happening now-a-days. It is because of increased vehicle density, violation of rules and carelessness. India ranks fifth in the road accidents over the world. There have enormous advancement in automobile technologies already and still to come. Because of these technologies, now we are enjoying the necessary comfort and safety.We have the objective to minimize the road accidents due to above mentioned facts in real time using embedded systems platform in low cost. In our project, we proposed few concepts to minimize the accidents due to violating rules and carelessness.
ABSTRACT:
In this project, we use embedded technology to prevent accidents due to drunk driving, using mobile phones while driving etc. If accidents occurs in remote areas, the feature of autoproviding the accident area to the emergency centers for help and support is also provided. On the other hand, the security for the vehicle is also enhanced. This is made possible because the theft vehicle area can be known to the user and the vehicle fuel can be cut off and center lock is enabled. By using these concepts, we hope that the road accidents due to violating rules and
carelessness will be minimized and this will be one of the project required for now-a-days and with the significance of low cost.
Our project comprises of three sub-concepts namely, ALCOHOL DETECTOR – If the driver is sensed to be alcohol consumed, then the EMERGENCY SYSTEM – Accidents occurs if any, then the accident is recognized
vehicle will not start. using vibrating sensor and using GSM module the area where the accident took place is sent to emergency centers like 108,100 etc. SECURITY SYSTEM – If the vehicle is found to theft, then the user can identify the location where the vehicle is now and stop the fuel flow as well as to activate the center lock of vehicle using GSM module.
WORKING METHADOLOGY:
In our alcohol detection system, the ignition circuit is controlled by interfacing a set of sensors, logic circuit and a micro processor. We know that the ignition key of a vehicle has to be turned in two steps, one for switching on the electrical circuit and second step for cranking the engine. As per our design exhaled air reaches the sensor unit where its checked for MQ303A and alcohol. The alcohol and MQ303A sensor unit gives output as per the condition of the air through the logic circuit which is sent to the micro processor. Depending upon the output the microprocessor controls the ignition process. *MQ303A is semiconductor sensor is for Alcohol detection, *It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector.
The battery supplies large power to the spark plug so direct interfacing of the logic circuit will burn the IC’s. so relay switches are used. The battery circuit consist of a NC relay switch. The NC switch is controlled by a solenoid which is energized by the signals from the logic circuit. The power for energizing the coils is obtained by amplifying the IC signals using a transistor. The microprocessor is programmed with a time program for a duration of ten seconds such that at the end of the program the microprocessor automatically opens the ignition circuit. Now when the logic circuit gives output as logic 1 the micro processor’s program is brought to a end without any result so the NC is left undisturbed. When no signal is obtained from the logic circuit that’s logic zero, the processor’s program runs fully and at the end of the program the solenoid of the NC is energized which pulls the NC switch off the circuit so the circuit is opened. Due to this the engine will not crank. . The vehicle theft crime appeals to the owners to utilize the advance techniques of the GPS and others related techniques available in the market to reduce the car theft cases. GPS is a compact handy device like mobile phone with enabled combo technology of GPS and GPRS that track mobile vehicles through using four visible satellites. The satellites send the signals to the GPS receiver and it calculates the signals and inform about the exact position of the vehicle on the earth. The calculated data send on web server provided to users by the GPS service providing company. The company provides a web based login account to access the data from the web server. Using this account, the user can track one or more vehicles at a time. The GPS Device provides the complete data about your vehicle like its status, maximum speed, motion hours, distance covered and stationary timing and duration. Micro vehicle black box is a next generation anti-theft security system. This is a new concept, which is in a testing phase to track the stolen car through cell phones. It is compatible with all GSM or CDMA mobiles. With the help of this service, it will be easy to make the car immobilize, also this service will help to know about the unauthorized entry in the car, and location of the vehicle. Through this service it will be easy to make two-way communication with the driver and transfer of command.
This concept implements a low cost object tracking system using GPS and GPRS. The system allows a user to view the present and the past positions recorded of a target object on Google Map through the internet. The system reads the current position of the object using GPS, the data is sent via GPRS service from the GSM network towards a web server using the POST method of the HTTP protocol.
The object’s position data is then stored in the database for live and past tracking. A web application is developed using PHP, JavaScript, Ajax and MySQL with the Google Map embedded. The existing live tracking systems that are available now a days use SMS for the communication to the server which turned out to be expensive. (SMS are used for communication to device). We have used the GPRS service which made our system a low cost tracking solution for localizing an object position and status. This system is very useful for car theft situations (alarm alert, engine starting, localizing), for adolescent drivers being watched and monitored by parents (speed limit exceeding, leaving a specific area), as well as for human and pet tracking.
A good number of tracking systems had so far been developed with a wide range of tracking facilities. But the operation cost of most of these systems is higher which prevents from widespread use. On the other hand, the rate of car theft, asset theft, child kidnapping in many countries are increasing at a higher rate. The objective of this research is to reduce the cost of the tracking system using the latest technologies and making it available to the common people.
This project is also designed to inform about an accident that has occurred to a vehicle to the emergency centers like 108,100 etc.This project uses a piezo-electric sensor which can detect the abrupt vibration when an accident has occurred. This sends a signal to microcontroller. A GSM modem is interfaced to the MCU. The GSM modem sends an SMS to the predefined mobile number and informs about this accident. The project is built around the AT89C51 micro controller from Atmel. This micro controller provides all the functionality of the SMS alert system. It also takes care of filtering of the signals at the inputs. Only after an input has remained unchanged for 30 milliseconds, is this new signal level passed on for processing by the micro controller program. This time can be varied by adopting small changes in the source code. The uniqueness of this project is, not only alerting the emergency centers by its siren, but also it sends a caution SMS to additional four mobile numbers,if required. This numbers can be changed at any time by the user using a 3X4 key pad. These numbers are stored in EEPROM. This project uses regulated 5V, 750mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.
ADVANTAGES:
It helps in reducing road accident at a large extent. It eradicates the inconvenience caused when a driver is pulled down by the police for a check whether he has consumed alcohol. The time taken for the test is maximum ten seconds The cost for installation is very cheap. Huge alteration in design of the car is not required. Helps in reaching accidents occurred at remote areas.