Control system for safely operating at least one functional component
First Claim
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1. A system comprising:
- a functional control unit configured to enable and disable operation of a functional component; and
a controller configured to receive a sensor signal, evaluate safety quality of the sensor signal, select and generate an evaluation parameter from at least three different parameters, each parameter representing a different one of a plurality of predetermined standard-compliant safety levels corresponding to the safety quality of the sensor signal, and output the sensor signal with the evaluation parameter as a pair for receipt by the functional control unit;
wherein the functional control unit is configured to control operation of the functional component depending on the safety level corresponding to the safety quality of the sensor signal indicated by the evaluation parameter.
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Abstract
A system includes a functional control unit and a controller. The functional control unit is configured to enable and disable operation of a functional component. The controller is configured to receive a sensor signal, evaluate safety quality of the sensor signal, generate an evaluation parameter representing the safety quality of the sensor signal, and output the sensor signal with the evaluation parameter as a pair for receipt by the functional control unit. The functional control unit is configured to control operation of the functional component depending on the safety quality indicated by the evaluation parameter.
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Citations
20 Claims
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1. A system comprising:
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a functional control unit configured to enable and disable operation of a functional component; and a controller configured to receive a sensor signal, evaluate safety quality of the sensor signal, select and generate an evaluation parameter from at least three different parameters, each parameter representing a different one of a plurality of predetermined standard-compliant safety levels corresponding to the safety quality of the sensor signal, and output the sensor signal with the evaluation parameter as a pair for receipt by the functional control unit; wherein the functional control unit is configured to control operation of the functional component depending on the safety level corresponding to the safety quality of the sensor signal indicated by the evaluation parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a plurality of functional control units each associated with one or more of functional components, wherein each functional control unit is configured to enable and disable operation of their associated functional components; and a controller configured to receive a sensor signal, evaluate safety quality of the sensor signal, select and generate an evaluation parameter from at least three different parameters, each parameter representing a different one of a plurality of predetermined standard-compliant safety integrity levels corresponding to the safety quality of the sensor signal, and output the sensor signal with the evaluation parameter as a pair for receipt by the functional control units; wherein each functional control unit is further configured to control operation of the their associated functional components depending on the safety integrity level corresponding to the safety quality of the sensor signal indicated by the evaluation parameter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method comprising:
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receiving a sensor signal from a sensor; evaluating safety quality of the sensor signal; selecting and generating an evaluation parameter from at least three different parameters, each parameter representing a different one of a plurality of predetermined standard-compliant safety levels corresponding to the safety quality of the sensor signal; outputting the sensor signal with the evaluation parameter as a pair to a data bus in communication with a functional control unit, configured to enable and disable operation of a functional component, for receipt by the functional control unit; and controlling with the functional control unit operation of the functional component depending on the safety level corresponding to the safety quality of the sensor signal indicated by the evaluation parameter. - View Dependent Claims (19, 20)
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Specification