×

Method and device for dual-channel monitoring of safety-relevant sensor signals

  • US 8,798,849 B2
  • Filed: 07/15/2009
  • Issued: 08/05/2014
  • Est. Priority Date: 09/01/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for dual-channel monitoring of safety-relevant sensor signals, the method comprising:

  • generating two sensor signals in parallel to one another to be monitored, via two sensors;

    transmitting the generated sensor signals to a single, common microprocessor via two separate, input-side transmission channels;

    determining one of a permissibility and an impermissibility of the transmitted sensor signals within the microprocessor using two prescribed calculation specifications corresponding to one another; and

    thengenerating for each transmitted sensor signal, via the microprocessor, an output signal representing one of permissibility and impermissibility,wherein in determining the permissibility of the transmitted sensor signals, individual processing steps of the calculation specifications are decoupled from one another by the microprocessor for the sensor signals and performed separately within the microprocessor,wherein each generated output signal is output via two separate, output-side transmission channels.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×