12-05-2012, 11:15 AM
The Flexible Bus Systems Using Zigbee as a Communication Medium
The_Flexible_Bus_Systems_Using_Zigbee_as_a_Communication_Medium.doc (Size: 25.5 KB / Downloads: 42)
ABSTRACT
The Flexible Bus System is more efficient and convenient in a sense that it entertains passenger’s demands and gives bus locations in real time. The Flexible Bus Systems is a system that can replace the Traditional Bus Systems with its flexibility and efficiency.
The hardware composes of a coordinator ZIGBEE which is bus stop is connected to P.C. and slave ZIGBEE which are in the bus. As soon as Bus enters the communication range of the Bus Stop, information exchange starts as described below.
1. Bus sends the Bus ID to Bus Stop and Bus Stop authenticates the request and requests the Bus to Stop or Don’t Stop at current Bus Stop.
2. If Bus is requested to stop at current Bus Stop, Bus sends the stopping signal to Bus Stop and if Bus is requested to pass the Bus Stop without stopping, it sends the Non-Stop passing signal to Bus Stop and requests.
3. In case of Bus stopped at current Bus Stop, after the Passengers rode the Bus, Bus Stop requests for the No. of Passengers in the Bus, and the Bus sends the No. of passengers in the Bus to the Bus Stop and requests for Next Bus Stop ID.
4. Bus Stop sends the Next Bus Stop ID to the Bus.
The decision of stopping at Bus Stop is made by Control Centre and is to be made on following conditions like No. of passengers to get off on this Bus Stop, No. of passengers to ride on this Bus, Seats available in this Bus
Each time information is sent by the Bus to the Bus Stop, it is sent to the Control Centre by the Bus Stop. The Control Centre checks for the validity of the data and sends it back to the Bus Stop from where the data is sent to the Bus.. All the information received from Bus which is now carried by the Bus Stop will be transferred to the Control which is a P.C.