Abstract:
The invention refers to an explosion protection system for electrical apparatuses and machineries, such as manipulators or industrial robots, located in hazardous environments, i.e. environments containing explosive concentrations of inflammable gases, dusts or vapours, comprising means for applying internal pressurized air into an explosion proof enclosure and that has a purging system and electrical components, such as motors, relays, IC-boards, cables etc. The invention is achieved by, that a flow-and pressure sensor is arranged as an integrated unit and designed to stand high dynamic forces by having low inertia, balanced arrangement of moving parts and a movement guide, e.g. an axle with a support guide, with low friction.
Abstract:
The invention is a method, controller and control system for controlling a robot that is used in concert with at least one other robot to perform an operation on one or more work objects. Each robot controller checks whether a common reference value is not acceptable, and if so, provides a signal for the robot to wait before proceeding to the next task. Each robot controller also checks whether the target object is in the correct position or not; and also checks whether or not another robot has stopped. If either another robot has stopped and/or if the work object is not in the right position, the robot waits. The invention is particularly advantageous for automated painting whereby a production line may be re-started more quickly again after a stoppage or production delay.
Abstract:
An electrostatic separator intended for separation of liquid phase systems, made up of mixtures of liquids of various electrical permittivity. In particular, the separator is intended for separation of an oil-and-water emulsion. The electrostatic separator contains a vessel, inside which there is suspended a system of electrodes energised from an external voltage source. The electrode system comprises at least one pair of conducting plates (8), which is attached to a supporting frame (7) and electrically connected with the high voltage winding of a feeding transformer (9), which is placed in the supporting frame (7). The supporting frame (7) is preferably a casting of an insulating material. The conducting plates (8) of the electrode system are preferably connected to the winding of the feeding transformer (9) through a capacitive electrical connection.
Abstract:
The invention generally relates to energy metering for billing purposes, low voltage cable protection against by-pass coupling and communication possibilities for collecting energy meter values. More particularly, the invention relates to a system for electric energy distribution and for remote electricity metering, comprising a low voltage distribution grid having at least one splitting site, wherein at least one splitting site has a distribution unit. The distribution unit comprises connection means (18) and energy metering means (20) for each consumer site and a data communication unit (24) arranged to receive metering values from said energy means (20) and transmits the collected metering values from said distribution unit (14).
Abstract:
Pipe system for subsea installations for offshore production or processing of hydrocarbons, for interconnection of or internal connections in functional units, such as Xmas trees (1) and manifold modules (2), where a pipe connection comprises communicating pipe branches (5,7,8) which run with mutual angle deviation or parallel to each other. A pipe branch (5) is provided with a bellows device (11) for obtaining a certain possibility of movement of the pipe branch, and a second pipe branch (7) is also provided with bellows device (12) for obtaining a certain possibility of movement of the second pipe branch (7).
Abstract:
The present invention relates to a valve positioner (1) comprising: a valve operation information unit adapted to obtain operational information about a valve (14); a processing unit adapted to prepare a communication message comprising the operational information about the valve (14); a wireless transmitter adapted for transmission of a wireless communication signal comprising the communication message to a central valve monitoring unit (6); and an antenna adapted to transmit the wireless communication signal. The invention also relates to a central valve monitoring unit (6), a valve monitoring system (10), as well as to a method of using a valve positioner (1) for upgrading a valve monitoring system (10). (Fig 3)
Abstract:
The invention relates to a method for localizing a node in a wireless network, the method comprising: receiving location signals transmitted by beacons, the location signals comprising information about the locations of the respective beacons; detecting the respective received signal strengths of the received location signals; obtaining information about the different signal levels at which the beacons can transmit; studying the received location signals; determining the signal levels used by each of the beacons for the transmission of the location signals, based on the studying of the received signals; calculating a distance to each of the beacons based on the detected signal strengths and the determined signal levels; and localizing the node by means of the received location information and the calculated distances. The invention also relates to a node ant to a wireless network.
Abstract:
A wireless vibration sensor is disclosed suitable for connection to a distributed industrial control system (50) arranged with a wireless network (27) for communication of process data or control information. The wireless vibration sensor comprises at least one a sensor (10), a wireless radio transmitter (14), and a base part (1) or for mounting it firmly on an equipment (M) or a structure. The wireless sensor is arranged with a battery and a power storage device. A method for powering up the wireless sensor during active cycles is also described.
Abstract:
The invention provides a method for navigating in a process control system. The process control system comprises a graphical user interface with a plurality of graphic objects each associated with a process control object wherein at least one graphic object has an active link for monitoring or controlling at least one physical control object. The graphical user interface is arranged with navigation means so that a user can indicate or select at least one point (+) in a process section on said graphical user interface as a first user input and increase, in a continuous animated movement, the scale at which the at least one point (+) and its immediate surroundings in the process section are displayed. Further, the zooming-in or zooming out continues displaying a view of the indicated or otherwise selected point (+) on said graphical user interface and scaling it up continuously until a predetermined scale is reached or, until a second user input is received. At that stage the a scaled-up view of the indicated or otherwise selected at least one point (+) is displayed at the scaled-up level.
Abstract:
Method in an oil and/or a gas production system comprising a plurality of oil and/or gas wells each producing a multiphase fluid stream, adapted for predicting change in produced fluids resulting from change in manipulated variables. Fitted model parameters which express the relationship between the change in manipulated variables and the produced fluids are determined from a set of historical production measurements. The method comprises the steps of: a. choosing a model structure which predicts change in produced fluids as a function of the change in manipulated variables, where the predicted change in produced fluids depends on the value of fitted model parameters; b. determining fitted model parameters so that predictions of produced fluids match said historical production measurements as closely as possible; c. determining a quality tag that describes the uncertainty of said predictions of change in produced fluids.