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Fire alarm display

  • US 5,189,394 A
  • Filed: 12/19/1990
  • Issued: 02/23/1993
  • Est. Priority Date: 12/22/1989
  • Status: Expired due to Term
First Claim
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1. Display apparatus suitable for use with a fire alarm system having a plurality of sensors positioned at various locations within an area layout, the display apparatus comprising:

  • (i) computer means for storing information relating to said area layout, said computer means having a memory;

    (ii) input means for deriving said information relating to said area layout from at least one pre-existing documentary graphic representation of said area layout, said input means storing in said memory said information as at least one screen image, said input means including a scanning device for scanning said documentary graphic representation and providing an output thereof in digital form to said memory;

    (iii) superposition means for adding data relating to said locations of said sensors to said at least one screen image stored in said memory; and

    (iv) visual display means connected to said computer means for selectively displaying said superpositioned stored screen image so as to display said layout including said locations of said sensors.

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