公开(公告)号：US20210382459A1

公开(公告)日：2021-12-09

申请号：US16764776

申请日：2018-11-14

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Andreas Widl ,  Leon Urbas

IPC: G05B19/418 ,  H04L9/08

Abstract: In a method for the encryption communication in a process plant, one or more keys for coding of electronic signals regarding the process plant, such as actuation signals, measurement signals, state signals, warning signals or such, are provided. The one or more keys are transmitted as acoustic signal via a ductwork guiding plant fluid, particularly a process fluid or an auxiliary fluid, from the first communication partner to the second communication partner. The process plant can be a chemical plant, a power plant, or a food-processing plant. The communication can be between a first and a second communication partner, which can include at least one field device, such as an actuator for adjusting a process fluid and/or a control electronics for supervising, controlling and/or regulating processes of the process plant.

公开(公告)号：US11774950B2

公开(公告)日：2023-10-03

申请号：US16764776

申请日：2018-11-14

Applicant: SAMSON AKTIENGESELLSCHAFT

Inventor： Andreas Widl ,  Leon Urbas

IPC: G05B19/418 ,  H04L9/08

CPC classification number: G05B19/4185 ,  G05B19/41815 ,  H04L9/0827 ,  G05B2219/25205 ,  G05B2219/25312 ,  G05B2219/25428

Abstract: In a method for the encryption communication in a process plant, one or more keys for coding of electronic signals regarding the process plant, such as actuation signals, measurement signals, state signals, warning signals or such, are provided. The one or more keys are transmitted as acoustic signal via a ductwork guiding plant fluid, particularly a process fluid or an auxiliary fluid, from the first communication partner to the second communication partner. The process plant can be a chemical plant, a power plant, or a food-processing plant. The communication can be between a first and a second communication partner, which can include at least one field device, such as an actuator for adjusting a process fluid and/or a control electronics for supervising, controlling and/or regulating processes of the process plant.