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 ZIGBEE 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, Eye blink sensor and ZIGBEE 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 or eye blink sensor detects the drowsiness or MEMS sensor detects the accident of the bike; this data is sent to the microcontroller. The microcontroller transmits this data through ZIGBEE Transmitter.  

Vehicle Section: This data is received by ZIGBEE 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.   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.
• 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:                      

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