Sistemas de seguridad por micro-ordenadores basados en el empleo de multiprocesadores

• Autores: Tadeus Okon
• Localización: Revista A.I.T., ISSN 0378-3294, Nº. 41, 1981 (Ejemplar dedicado a: Simposio ORE sobre microprocesadores, 2ª parte), págs. 51-56
• Idioma: español
• Títulos paralelos:
  • Safety system by microcomputers based in the use of multiprocessing units
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• Resumen

  • The use of the electronic in railway safety systems is delayed, in comparison with other sectors, this is due to its implications about the safety fundamentally. The design of a relay system generally is in conditions to foresee all the capable trouble to endanger the system safety, whereas for an informative system is more difficult obtain a complete evaluation of its validity.

    However, the electronic systems offer an advantage series that make to them capable to substitute efficaciously the conventional systems, resulting appropriate for applications that need an important capacity of facts treatment in real time. These reasons have caused the development of implantation design of safety system based in microprocessing units, in several railway administrations.

    This exposing mark the fields in which have application preferably the microprocessing units and it describes in detail the models of systems conception immediately after. The essential problem for the design is obtaining a guarantee of safe operating “fail safe”, for which is resorted to the redundancy. The redundancy ways that can be employed are discussed, establishing some choice criterions in function of the safety and availability characteristics required.