ADVANCED VEHICLE SAFETY AND SECURITY SYSTEM (SMART HELMET)

Road accidents involving two-wheeler riders remain one of the major causes of injuries and fatalities worldwide.A large number of accidents occur due to negligence such as riding without wearing a helmet, driving under the influence of alcohol, and the absence of immediate emergency communication during accident situations.In many cases, accident victims do not receive timely assistance because there is no automated mechanism to inform relatives or emergency services about the incident location.To address these problems, this paper proposes an Advanced Vehicle Safety and Security System using a Smart Helmet that focuses on improving rider safety and providing rapid accident response.The proposed system integrates multiple sensors and communication modules to ensure that the rider follows essential safety rules before starting the vehicle and to provide emergency alerts during accident situations.The helmet unit is equipped with an MQ3 alcohol sensor to detect alcohol consumption and an IR sensor to verify whether the rider is wearing the helmet properly.The vehicle ignition system is connected through a relay module that allows the vehicle to start only when the helmet is worn and alcohol is not detected.In addition, the system incorporates an MPU6050 sensor consisting of an accelerometer and gyroscope to detect abnormal motion that may indicate an accident.When an accident is detected, the system automatically activates a SIM800L GSM module to send emergency messages and initiate phone calls to predefined contacts.A GPS module is also integrated to obtain the real-time location of the accident so that the exact position of the rider can be shared with emergency contacts.To reduce false alerts caused by minor disturbances or accidental vehicle drops, a manual push button is included in the helmet that allows the rider to cancel the alert within a short delay period.The proposed smart helmet system therefore integrates helmet detection, alcohol detection, accident monitoring, and emergency communication into a single safety solution, helping to improve road safety and reduce accidentrelated injuries among two-wheeler riders.