Project Alcohol Detection with Engine Lock
Abstract
We usually come across drink and driving cases where drunk drivers crash their cars under the influence of alcohol causing damage to property and life. So here we propose an innovative system to eliminate such cases. Our proposed system would be constantly monitoring the driver breath by placing it on the driver wheel or somewhere the driver’s breath can be constantly monitored by it.
So, if a driver is drunk and tries to drive, the system detects alcohol presence in his/her breath and locks the engine so that the vehicle fails to start. The system uses an Arduino, PC fan, alcohol sensor, and buzzer.
The Arduino (microcontroller) on encountering high alcohol signal from the alcohol sensor indicates alcohol detection through buzzer and stops the Fan to demonstrate as engine locking. When alcohol is detected after engine starting, the system locks the engine at that time.
This Project presents an innovative way of protecting automobiles from drunken drivers for safeguarding them by using IOT.
Programming language used in the Arduino is C++.
The Objective
Now a day's every system is automated in order to face new challenges. In the present days Automated systems have fewer manual operations, flexibility, reliability and accurate. Due to this demand every field prefers automated control systems. We usually come across drink and driving cases where drunk drivers crash their cars under the influence of alcohol causing damage to property and life. So here we propose an innovative system to eliminate such cases.
Our proposed system would be constantly monitoring the driver breath by placing it on the driver wheel or somewhere the driver’s breath can be constantly monitored by it. So, if a driver is drunk and tries to drive the system detects alcohol presence in his/her breathe and locks the engine so that the vehicle fails to start. In another case if the driver is not drunk while he starts the vehicle and engine is started but he/she drinks while driving the sensor still detects alcohol in his breath and stops the engine so that the car would not accelerate any further and driver can steer it to roadside.
So, the alcohol sensor is used to monitor uses breath and constantly sends signals to the microcontroller.
The Bill of Materials
| Item | Price |
|---|---|
| Arduino UNO | $10 |
| 12V Fan | $2 |
| 1K/330/220 Ohm Resistors | $3 |
| Battery 12V Supply | $4 |
| MQ3 Alcohol Sensor | $9 |
| Breadboard | $1 |
| Jumper Cables M/M-M/F-F/F | $2 |
| Toggle Switch | $1 |
| Miscellous | $5 |
The Construction
The device is constructed using the above-mentioned apparatus following the circuit diagram shown above.
The Working
An alcohol sensor recognizes the mindfulness of liquor gas noticeable all around and analog voltage is an output reading. The sensor can actuate at temperatures going from -10 to 50° C with a power supply is under 150amp to 5V. The detecting range is from 0.04 mg/L to 4 mg/L, which is appropriate for breathalyzers. There is a warming system inside the sensor, which is comprised of aluminum oxide, tin dioxide. It has warm curls to create warmth, and along these lines it is utilized as a heating sensor. The beneath outline demonstrates the stick chart and the setup of the MQ-3 alcohol sensor.
The MQ-03 alcohol sensor comprises of a tin dioxide (SnO2), a point of view layer inside aluminum oxide smaller scale tubes (measuring cathodes) and a warming component inside a tubular packaging. The end face of the sensor is encased by a stainless-steel net and the posterior holds the association terminals. Ethyl liquor introduce in the breath is oxidized into acidic corrosive going through the warmth component. With the ethyl liquor course on the tin dioxide detecting layer, the protection diminishes.
When alcohol detected by the sensor, the micro controller sends required voltage to the buzzer, so that it sounds continuously and percentage of alcohol would be monitored through the serial display. So, it sends an alert to the vehicle owner.
The Conclusion
The “Alcohol Breath Analyzer using IOT Technology with engine lock” was designed such that the driver alcohol content is transmitted to the owner on his mobile phone as a short message (SMS) at his request.
The microcontroller gets the information regarding the alcohol through the alcohol sensor and alerts about the condition being sensed using Buzzer and automatically the motors of the vehicle turns OFF using relay switch
The Conclusion
In a future rendition of the model, a system wherein an alert could be sent via a SIM module to the user’s emergency contacts to inform them of his\her condition. Also, an LCD display can be added to make the system look more visually appealing.