Browse > Article

Implementation of counterfeit banknote detection counter using RTOS  

정원근 (경상대학교 전자공학과)
신태민 (연세대학교 의공학부)
이건기 (경상대학교 전자공학과)
Abstract
A banknote counter is a machine that automates counting the money in some agencies to treat much banknotes as well as general banking agencies. The banknote counter materialized in this paper is the machine that adds the function of banknote sorting, detecting plural banknote and detecting counterfeit banknote to an existing banknote counter. The technique of sensor signal processing are used for banknote sorting. The technique of sensor application and data processing are used for detecting counterfeit banknote. The technique of precision equipment design and microprocessor application are used for high speed count. Software improved in debugging and difficulties to link with additional hardware. It was materialized through effective control algorithm and real-time signal processing with C-language on the basis of RTOS(real-time operating system) Photodiode, its applications and a magnetic resistance sensor are used as a sensor device with regard to hardware cost -cutting and process velocity. PCF80C552-24 of Philips using Intel I8051 core is used as a control microprocessor. As the results so far achieved, counterfeit banknotes made by the use of a color duplicator and a color Printer, are distinguished from real banknotes through mixing an optical with a magnetic sensor. and, in case that there are some different banknotes while counting, it is prevented for them to be counted without discriminating from the same kind of banknotes in addition to the fu notion of banknote sorting.
Keywords
Citations & Related Records
연도 인용수 순위
  • Reference
1 K.S.Fu and Rosenfeld. 'Pattern Recog- nition and Image Processing', IEEE Trans. Info. Theory, Vol.C-25, pp.1336-1346, 1974
2 Thomas W. Schultz, 'C and the 8051- Programming for Multitasking'. Prentice Hall, 1993
3 Alex Ryer. 'Light Measurement Hand- book' international light, 1998
4 三洋電氣(株), 'アモルファス光センサカタログ 光センサ', 1987-9
5 Philips. '80C552 Data Book', 1999
6 Jean J. Labrosse, 'uC/OS The Real- Time Kernel', R&D Publications
7 Peterson Silberschatz. 'Operating System Concepts', Prentice-Hall