×

Distributed microprocessor based sensor signal processing system for a complex process

  • US 4,804,515 A
  • Filed: 10/31/1984
  • Issued: 02/14/1989
  • Est. Priority Date: 10/31/1984
  • Status: Expired due to Fees
First Claim
Patent Images

1. Apparatus for processing a plurality of signals produced by sensors monitoring selected parameters in a complex process for use by a process protection system, said apparatus comprising a plurality of independent, digital signal processors smaller in number than said plurality of sensor signals for generating digital protection system actuation signals for said protection system in response to predetermined combinations of values of said sensor signals indicative of predetermined conditions within said complex process, with at least some of said signal processors generating at least two such actuation signals and wherein for at least a given one of said predetermined conditions, a first of said independent signal processors generates a primary actuation signal for said given condition from a first combination of values of a first set of sensor signals and a second of said independent signal processors generates a secondary actuation signal for the given condition from a second combination of values of a second set of sensor signals, whereby although at least two protection system actuation signals are generated by at least some of said independent signal processors, the primary and secondary actuation signals indicative of a given predetermined process condition are generated in separate independent signal processors.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×