Abstract

PEDREIRA MARCEL, Marcel  and  MORENO VEGA, Valery. Access control and interlocking system for the Molecular Immunology Center. EAC [online]. 2013, vol.34, n.3, pp. 74-88. ISSN 1815-5928.

This paper shows the design and development of an access control and interlocking system for the Molecular Immunology Center because the commercial systems installed in this center do not meet all needs. The proposed system consists of two electronic boards: the door controller and the interlock controller, both were developed based on Microchip's PIC microcontroller programmed using CCS PCW compiler. These cards are able to communicate with devices like barcode reading, proximity, biometric or any other that transmit by Wiegand protocol. They must also be configured to operate in a desired manner and therefore a software application was developed using Qt as framework, and implementing effective practices of software engineering. This application communicates with the controllers via RS232 using Modbus protocol.

Keywords : access control; interlocking; microcontroller; modbus; wiegand; software engineering.

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