VIEIRA, C. A.; http://lattes.cnpq.br/4373329089152914; VIEIRA, Evilacy César Andrade.
Résumé:
The electromechanical exchanges switchings don't have efficient means of
supervision of the public telephones connected to them. In this work is show the
development of the systems of supervision of public telephones and of aid to the
development of projects based on microcontroler Intel 8031. The system of supervision
is subdivided in one or more modules of data acquisition and in a control program. It
was set up and tested a module prototype and an man-machine to the program.
