Aim of this project is to implement class room attendance system with indoor counter and information announcement using CAN 2.0 Protocol.Controller–area network (CAN or CAN-bus) is a vehicle bus standard designed to allow microcontrollers and devices
to communicate with each other within a vehicle without a host computer. It was designed specifically for automotive applications but is now also used in other areas. Development of the CAN-bus started originally in 1983 at Robert Bosch GmbH.The intention of this project is implementation of hardware in a college campus using embedded CAN bus. The implemented system has the following characteristics, which distinguish it from existing approaches: (i) the class rooms interface with smart card attendance is automatically updated to HOD; (ii) a standard communication protocol (CAN) is used in the hardware implementation, providing reliability and er ror control; (iii) new class room nodes are easily inserted in the system; (iv) SMS alert to the pa rent’s about presents of their children in college.SYSTEM DESIGN: There are three nodes:1. HOD room Node 1: it consists of CAN Controller to interface with Classrooms and then it will be interfaced with net to SMS facility.2. CLASS room Node 2: it consists of CAN controller to interface with HOD room and smart card reader for attendance purpose and also it is interfaced with Counter unit to intimate HOD about class room strength.3. CLASS room Node 3: it is as same as Node 2.
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