Safety device and procedure
AssigneePizzato Elettrica S.R.L.
InventorsMarco Pizzato, Giuseppe Pizzato
Life of this patent
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Abstract
A safety device is configured to detect a hazardous situation in an industrial machine or plant. The safety device includes: at least one sensor for detecting parameters associated with the hazardous situation, a transmitter for safely transmitting a safety signal, and a processor having a deterministic portion for processing at least a first part of the parameters in accordance with a deterministic model and a probabilistic portion for processing at least a second part of the parameters in accordance with a probabilistic model.
Claims16
A safety device configured to detect a hazardous situation in an industrial machine or plant and to activate a safety function of the industrial machine or plant in response to detecting the hazardous situation, wherein the safety device comprises:
- sensor means configured to detect parameters of the industrial machine or plant associated with the hazardous situation;
- transmission means configured to safely transmit a safety signal to activate the safety function of the industrial machine or plant;
- and
- a processing unit configured to process the parameters in order to detect the hazardous situation and to control the transmission means in order to transmit the safety signal;
- wherein the processing unit comprises a deterministic portion configured to process at least a first part of the parameters in accordance with a deterministic model and a probabilistic portion configured to process at least a second part of the parameters in accordance with a probabilistic model.
A safety procedure for detecting a hazardous situation in an industrial machine or plant and for activating a safety function of that machine if that hazardous situation is detected, the safety procedure comprising the following steps:
- detecting parameters of the industrial machine or plant associated with the hazardous situation;
- and
- processing the parameters in order to detect the hazardous situation;
- wherein at least a first part of the parameters is processed according to a deterministic model and at least a second part of the parameters is processed according to a probabilistic model.
A safety device configured to detect a hazardous situation in an industrial machine or plant and to activate a safety function of the industrial machine or plant in response to detecting the hazardous situation, wherein the safety device comprises:
- at least one sensor configured to detect parameters of the industrial machine or plant associated with the hazardous situation;
- a transmitter configured to safely transmit a safety signal to activate the safety function of the industrial machine or plant;
- and
- a processor configured to process the parameters in order to detect the hazardous situation and to control the transmission means in order to transmit the safety signal;
- wherein the processor comprises a deterministic portion configured to process at least a first part of the parameters in accordance with a deterministic model and a probabilistic portion configured to process at least a second part of the parameters in accordance with a probabilistic model.
Dependencies are inferred from the claim text.