The project aims in designing an intelligent helmet and to provide safety and security for riders. The proposed system consists of two sections such as helmet and vehicle. The proposed system uses RF Technology for data transmission in between two sections.  

Helmet section: The controlling device of the whole system is PIC Microcontroller. Switch, alcohol sensor, MEMS SENSOR, RF Transmitter, is interfaced to the Microcontroller. Whenever the user wears the helmet, the switch detects that, then only the helmet section circuit works. When the alcohol sensor detects the alcohol and MEMS sensor detects the accident of the bike; this data is sent to the microcontroller. The microcontroller transmits this data through RF Transmitter.  

Vehicle Section: This data is received by RF receiver module and fed as this to the microcontroller. If the sensor data is abnormal then microcontroller stops the ignition of the vehicle and takes the location from GPS and sends the SMS through GSM along with GPS coordinate to a predefined number. And also give the audible alerts through Buzzer. The status of the project is display on LCD. Here DC motor works as a vehicle.    

RF Communication ranges in between 30 KHz to 300 GHz. RF communication works by creating electromagnetic waves at a source and being able to pick up those electromagnetic waves at a particular destination. These electromagnetic waves travel through the air at near the speed of light. The wavelength of an electromagnetic signal is inversely proportional to the frequency; the higher the frequency, the shorter the wavelength.       The action of these instructions is already loaded into the Microcontroller using Embedded C programming. The intelligent control software, which has been developed Embedded C programming language.  

The main blocks of this project are:

• Regulated power supply.
• PIC Microcontrollers.
• Crystal oscillator.
• Reset button.
• RF TX,RX
• Alcohol sensor.
• MEMS Sensor.
• GSM.
• GPS.
• LCD display.
• Buzzer.
• DC Motor with driver.
• LED indicator.

  Software’s used:   

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

  Block diagram:      

video: