10-04-2017, 09:39 PM
Zigbee Wireless Vehicular Identification and Authentication System
Zigbee is a recently developed wireless technology used in many commercial and research applications based on the IEE 802.15.4 specification. It has become a very attractive wireless connectivity solution due to its open standard, low cost and low power characteristics. Zigbee is suitable for low data-rate and low power consumption applications in comparison with other wireless technologies such as Bluetooth and WiFi. Applications include home and building automation, industrial control, building management systems, environmental monitoring and vehicle fleet management systems.
Existing System:
In the existing system the vehicular identifications are performed in the RF Communication. The RF Communications are not providing the communication channel as longer. So the system and unique ID cannot be followed
Proposed System:
We propose a Zigbee technology based wireless vehicle identification and driver authentication system consisting of a central database of authorized vehicles The RF Tx is placed in a vehicle that will be approaching the entrance of an establishment, the RF Rx is used to communicate with the RF Tx. A vehicle identification device profile was defined and developed using the Microchip Zigbee protocol stack. The vehicle detail is given to the microcontroller through RF Rx which is transmitted through wireless Zigbee model to remote PC. The data can be viewed only when he enters the correct password.
The Proposed System:
A micromouse integrates microprocessor with sensors and has the ability to go through the maze automatically. Sensors are indispensable and essential in its control system. We can find many sensors such as infrared photoelectric sensor, ultrasonic sensor, laser sensors and so on applied. They all have non-contact measurement advantages. Because of the fast response and low cost of infrared photoelectric sensor, infrared photoelectric sensors play an important role in the system control for the micromouse. However, there are many interferential factors when we use the infrared photoelectric sensor to control the motion of micromouse, in which cases the measurement of infrared photoelectric sensor cannot achieve the desired effect.
This paper proposes a new improved method, in order to improve the measurement accuracy of the sensor effectively. In addition to the above measurement, what we only need to do is to change the wheel and then better measurement accuracy will be obtained. The solution is to use a CODED WHEEL to provide noise immunity by increasing the S/N ratio and improved signal performance.
The signal received from IR sensor before using a coded wheel is given below. The voltage at point A is supposed to be higher than zero , but due to noise it has ascended. The vice versa situation exists for point B .