1. Electronic Library Management System Using wireless communication and AT89S52

2. This project mainly concentrates on library message displays by using a typical multi-CPU embedded system
Due to the limit of memory space and the real time requirement, efficiency and memory usage should be fully considered when multi-CPU embedded systems (MCESs) are used.
Out of consideration of function and cost, the capacity of each CPU system in a MCES differs a lot from each other.

3. For the purpose of improving the capability, large communication equipments always equip as more CPUs as possible.
Each CPU is in charge of a particular function module with a self-independent embedded system. Thus, a technical support for distributing system is needed to enable processes in different function modules to coordinate with each other.

4. According to the definition of distributed systems, application processes may run in different CPU systems.
The proposed system consists of a master CPU and a RF transmitter module connected to it via UART port which transmits message to other wireless receiver modules which are placed at different places which in turn displays the books blocks linked to these receivers.

5. This proposed research work would be implemented using embedded system design methodology, which includes embedded hardware and firmware design modules. This project would be carried out with AT89S52 Micro controller and industry driven Embedded EDA Tool kits.

6. BLOCK DIAGRAM:

7. Embedded EDA Tools:
Micro-Vision IDE, Real view C Cross Compiler, software Hardware simulators, ORCAD for schematic & PCB design and simulation, HEX converter, Atmel 89xx Flash programmer burner V3.1.
Hardware Modules:
ST-0703 Tx Board, ST-0704 Rx Board, RS232 cable, AT89C51Microcontroller, Encoder HT640, Decoder HT648, RF Tx & Rx pairs, voltage regulator, ULN Driver, LCD, RPS, MAX232etc.

8. Firmware:
Firmware development using Embedded ‘C’ language.
Advantages:
Messages can be the “universal translator” between various platforms and languages, allowing each platform to work with their respective native data type.
Asynchronous communications: both the sender and receiver can be running flat out and not be constrained by waiting on each other.

9. THANK YOU