Abstract:
During manufacturing a unique encrypted authentication code is created for each product 12 based upon device specific information relating to that product 12. The unique encrypted authentication code together with the device specific information is stored in a database 23, and a representation 14 of the unique encrypted authentication code is stored on the product. To determine whether a product in question is authentic, the readable representation 14 of the unique encrypted authentication code is read and sent to a server 22 along with a request for product authentication. The server 22 provides an indication of authenticity of the product 14 in question based upon the unique encrypted authentication code received and the device specific information associated with that unique encrypted authentication code in the database 23.
Abstract:
During manufacturing a unique encrypted authentication code is created for each product 12 based upon device specific information relating to that product 12. The unique encrypted authentication code together with the device specific information is stored in a database 23, and a representation 14 of the unique encrypted authentication code is stored on the product. To determine whether a product in question is authentic, the readable representation 14 of the unique encrypted authentication code is read and sent to a server 22 along with a request for product authentication. The server 22 provides an indication of authenticity of the product 14 in question based upon the unique encrypted authentication code received and the device specific information associated with that unique encrypted authentication code in the database 23.
Abstract:
A system for measuring concentration of water vapor in a gas (305) includes a pressure sensor (202) configured to sense a static pressure of the gas (305) and a differential pressure sensor (205) configured to sense a differential pressure. A temperature sensor senses a temperature of the gas (205). Circuitry (208) estimates determines a concentration of water vapor in the gas (305) based upon the measured pressures and temperature.
Abstract:
During manufacturing a unique encrypted authentication code is created for each product 12 based upon device specific information relating to that product 12. The unique encrypted authentication code together with the device specific information is stored in a database 23, and a representation 14 of the unique encrypted authentication code is stored on the product. To determine whether a product in question is authentic, the readable representation 14 of the unique encrypted authentication code is read and sent to a server 22 along with a request for product authentication. The server 22 provides an indication of authenticity of the product 14 in question based upon the unique encrypted authentication code received and the device specific information associated with that unique encrypted authentication code in the database 23.
Abstract:
Methods and systems for assessing transmitter electronics in an industrial process control system comprise generating a process condition reference equation signal, a process condition approximation equation signal, and an accuracy output signal. The process condition reference equation signal is generated using a process condition reference equation and process control inputs. The process condition approximation equation signal is generated using a process condition approximation equation that approximates the reference equation using the process control inputs, and approximation equation coefficients based on the approximation equation and the process control inputs. The approximation equation signal is compared to the reference equation signal at a control room workstation such that the industrial process control system can be adjusted. In one embodiment, the approximation equation coefficients are adjusted and transmitted to process transmitter electronics over a control network. In another embodiment, a parameter of the industrial process control system, such as a primary element or transmitter, is adjusted.
Abstract:
Methods and systems for assessing transmitter electronics in an industrial process control system comprise generating a process condition reference equation signal, a process condition approximation equation signal, and an accuracy output signal. The process condition reference equation signal is generated using a process condition reference equation and process control inputs. The process condition approximation equation signal is generated using a process condition approximation equation that approximates the reference equation using the process control inputs, and approximation equation coefficients based on the approximation equation and the process control inputs. The approximation equation signal is compared to the reference equation signal at a control room workstation such that the industrial process control system can be adjusted. In one embodiment, the approximation equation coefficients are adjusted and transmitted to process transmitter electronics over a control network. In another embodiment, a parameter of the industrial process control system, such as a primary element or transmitter, is adjusted.
Abstract:
During manufacturing a unique encrypted authentication code is created for each product based upon device specific information relating to that product. The unique encrypted authentication code together with the device specific information is stored in a database, and a representation of the unique encrypted authentication code is stored on the product. To determine whether a product in question is authentic, the readable representation of the unique encrypted authentication code is read and sent to a server along with a request for product authentication. The server provides an indication of authenticity of the product in question based upon the unique encrypted authentication code received and the device specific information associated with that unique encrypted authentication code in the database.