Abb Ab

Q-tagg R&d Ab

George Fodor

Lars Gertmar

Erik Carlson

Christine Mikkelsen

Jan-Anders Nolemo

Tomas Lindqvist

Arne Löfgren

This invention relates to a method and a device for averting and damping rolling of an engine-driven marine vessel with propeller propulsion. The proposed method recognizes the fact that the speed controller of a ship responds to heel angle variations by propeller speed adjustments. A speed controller is reading such propeller moment change as speed variations to be corrected. By the recurrence of this process, the result is amplifying small rolling effects to a critical rolling. Further elements contribute to this process, such as the propeller side effects ship's hull contact with the sea, waves or winds. However, by suppressing the interaction between heel angle variations and the speed controller, the rolling of a ship can be effectively reduced and averted. The proposed method, by suppressing the cause of the critical rolling, reduces rolling, fuel consumption and maintenance of the ship's propulsion engines.

Method and device for averting and damping rolling of a ship

A method for optimizing measurement and control of the flatness of a strip of rolled material. A mapping is accomplished by associating to relevant flatness fault types a reference strip model and an actuator space conversion matrix. A device for optimizing measurement and control of the flatness of a strip of rolled material.

Method and device for measuring, determining and controlling flatness of a metal strip

Methods and devices for performing a selection action of information in a central system before communicating selected information to a user terminal. The selection is based on at least the identity of the user and position of the user terminal. Using relations between identity and profiles, a first information filtering can be achieved. Using relations between the actual position of the user terminal and constitution of the industrial automation facility, information irrelevant for parts in the vicinity of the user terminal is removed. The operational situation of the facility and history of user actions may be used for filtering or prioritizing the information. The most prioritized data quantity is communicated to the user terminal and displayed at a user terminal display. If all the data, despite sifting, is too extensive to be shown at once on the user terminal, the user may move between different parts of the relevant information.

Method and system for sending localization and identity dependent information to mobile terminals

Growing community of inventors

Västerås, Sweden

George Fodor