Abstract: The invention relates to an improved method for generating clean steam in a digester plant of a chemical pulp mill. By feeding a steam-to-steam converter (SSC) with venting steam from a black liquor flash tank (FT) as well as venting steam from chip steaming (SV) could the volume of clean steam produced be increased by over 40-50%, and to such an extent that the volume of clean steam covers the needs for preheating of chips in the digester system also in severe operational conditions. The total consumption of clean steam from the steam net of the mill may be reduced and used for other purposes such as electricity production, which meets the requirements for converting the pulp mill to an environmental friendly pulp mill.

Abstract: An apparatus includes a strap configured to enable the apparatus to be worn by a user; an optical measurement element configured to be placed on a skin of the user, and to measure data related to heart activity of the user; communication circuitry configured to transmit the data related to heart activity of the user according to a Bluetooth standard on a 2.4 GHz band; and an antenna coupled with the communication circuitry, and configured to access a radio interface to transmit the data related to heart activity of the user.

Abstract: The invention relates to an improved method for generating clean steam in a digester plant of a chemical pulp mill. By feeding a steam-to-steam converter (SSC) with venting steam from a black liquor flash tank (FT) as well as venting steam from chip steaming (SV) could the volume of clean steam produced be increased by over 40-50%, and to such an extent that the volume of clean steam covers the needs for preheating of chips in the digester system also in severe operational conditions. The total consumption of clean steam from the steam net of the mill may be reduced and used for other purposes such as electricity production, which meets the requirements for converting the pulp mill to an environmental friendly pulp mill.

Abstract: A solution for estimating motion of a user is disclosed. A method comprises: acquiring satellite positioning data received with a satellite positioning receiver attached to a human body and indicating a location of the satellite positioning receiver; extracting, from the satellite positioning data, local motion data representing local motion of the satellite positioning receiver with respect to a reference point and overall motion data representing the motion of the reference point, wherein the reference point is included in a framework of the human body; and determining, from the local motion data, a local motion trajectory of a part of a human body to which the satellite positioning receiver is attached with respect to the reference point.

Abstract: A method for operating cellular connectivity in a wearable device includes configuring a sensor device to measure physical activity of a user and to output measurement data representing the measured physical activity; establishing, by using a cellular radio device included in the wearable device, cellular connectivity with an access node of a cellular communication system; and adjusting utilization of cellular uplink resources allocated to the cellular radio device according to a rate at which the measurement data from the sensor device becomes available for uplink transmission in the wearable device.

Abstract: A solution for estimating motion of a user is disclosed. A method comprises: acquiring satellite positioning data received with a satellite positioning receiver attached to a human body and indicating a location of the satellite positioning receiver; extracting, from the satellite positioning data, local motion data representing local motion of the satellite positioning receiver with respect to a reference point and overall motion data representing the motion of the reference point, wherein the reference point is included in a framework of the human body; and determining, from the local motion data, a local motion trajectory of a part of a human body to which the satellite positioning receiver is attached with respect to the reference point.

Abstract: A method, apparatus, and computer program for transferring data are presented. In the method, pedalling data is received in a processor, wherein the pedalling data characterize pedalling quantity measured from the force transmission system of a bicycle. A transmission data frame comprising a first sub-frame including at least a portion of the pedalling data is formed, and the transmission data frame is outputted for wireless transmission.

Abstract: There is provided an apparatus for determining a heart pulse of a person, the apparatus comprising at least two detectors configured to detect a blood pulse optically from the blood circulation of the person and to be placed optically on the skin of the person such that the detection of the blood pulse by each of the at least two detectors is expected to take place in a known order, a processor configured to determine that the detection of the blood pulse is correct when the detection of the blood pulse by each of the at least two detectors takes place in the known order, and to determine the heart pulse of the person on the basis of the detected pulses that are determined as correct.

Abstract: An apparatus includes a strap configured to enable the apparatus to be worn by a user; an optical measurement element configured to be placed on a skin of the user, and to measure data related to heart activity of the user; communication circuitry configured to transmit the data related to heart activity of the user according to a Bluetooth standard on a 2.4 GHz band; and an antenna coupled with the communication circuitry, and configured to access a radio interface to transmit the data related to heart activity of the user.

Abstract: This document presents a wireless communication scheme utilizing a combination of two wireless communication schemes: a short range communication scheme and a radio communication scheme having a longer wireless transmission range than the wireless transmission range of the short range communication scheme. A short range signal is used to indicate a radio resource to be used for transmitting a radio signal, and the radio signal is then communicated in the radio resource indicated by the short range signal.

Abstract: The invention relates to a device and method for measuring the properties of a surface. The device comprises means for producing illuminating light, which means are arranged to aim the illuminating light at the surface to be measured using at least two different wavelengths and at least two different angles, as well as means for directing the light reflected or scattered from the surface to a detector, in order to create an image of the surface to be measured. The device according to the invention further comprises at least one reference surface, the contents of which can be placed in the vicinity of the surface to be measured, in such a way that the illuminating light is also aimed at the reference surface and the light reflected or scattered from the reference surface can also be directed to the detector. The invention makes possible excellent measurement precision and repeatability, using a simple device construction with low production costs.

Abstract: This document presents a wireless communication scheme utilizing a combination of two wireless communication schemes: a short range communication scheme and a radio communication scheme having a longer wireless transmission range than the wireless transmission range of the short range communication scheme. A short range signal is used to indicate a radio resource to be used for transmitting a radio signal, and the radio signal is then communicated in the radio resource indicated by the short range signal.

Abstract: There is provided an apparatus for determining a heart pulse of a person, the apparatus comprising at least two detectors configured to detect a blood pulse optically from the blood circulation of the person and to be placed optically on the skin of the person such that the detection of the blood pulse by each of the at least two detectors is expected to take place in a known order, a processor configured to determine that the detection of the blood pulse is correct when the detection of the blood pulse by each of the at least two detectors takes place in the known order, and to determine the heart pulse of the person on the basis of the detected pulses that are determined as correct.

Abstract: An arrangement, method and computer program for determining the physical activity level of a human being. The arrangement comprises a movement sensor to be attached to an upper limb of the human being for measuring upper limb movements, a processing unit connected to the movement sensor for filtering upper limb movements following one another more frequently than a predetermined threshold period from upper limb movements during a determination period, for forming the number of upper limb movements during the determination period from the filtered upper limb movements during the determination period, and for determining the physical activity level on the basis of the number of upper limb movements during the determination period formed from the filtered upper limb movements during the determination period.

Abstract: In the solution of the invention, an association is formed between activity information characterizing the activity level of a user and a performance parameter value proportional to the heart rate information of the user, the activity information and heart rate information having been measured in a user-specific performance monitor, and the heart rate information being responsive to the activity level.

Abstract: In the solution of the invention, an association is formed between activity information characterizing the activity level of a user and a performance parameter value proportional to the heart rate information of the user, the activity information and heart rate information having been measured in a user-specific performance monitor, and the heart rate information being responsive to the activity level.

Abstract: An arrangement, method and computer program for determining the physical activity level of a human being. The arrangement comprises a movement sensor to be attached to an upper limb of the human being for measuring upper limb movements, a processing unit connected to the movement sensor for filtering upper limb movements following one another more frequently than a predetermined threshold period from upper limb movements during a determination period, for forming the number of upper limb movements during the determination period from the filtered upper limb movements during the determination period, and for determining the physical activity level on the basis of the number of upper limb movements during the determination period formed from the filtered upper limb movements during the determination period.

Abstract: The invention relates to a measuring arrangement for measuring a pressure signal from a living body. The measuring arrangement comprises a sensor structure comprising a converter for converting the effect of the pressure signal measured from the body into an electrical signal. The measuring arrangement of the invention comprises a pressure transmission structure prior to the converter in the sensor structure, the pressure transmission structure comprising one or more pressure transmission elements. The pressure transmission structure is, through one or more pressure transmission elements, meant to be in direct or indirect contact with the body for detecting the pressure signal measurable from the body.

Abstract: The invention relates to a method and an apparatus for identifying a heartbeat. In the method, an arterial pressure signal is measured in the form of multichannel measurement, and the required signal-processing operations, such as filtration, are carried out if necessary. The method also comprises carrying out signal detection and decision-making concerning the acceptance as a heartbeat signal. According to the invention, the signal detection includes multichannel channel-specific detection for the purpose of identifying signal components of different channels, and the obtained channel-specific detected channel signals are used as input data during the decision-making stage.

Abstract: The invention relates to an arrangement for measuring a biosignal from the surface of the skin of a living human body. The arrangement comprises a casing (5) on which a measuring sensor (300) rests which is to be arranged against a measurement target (1) on the body, and a fastener (6) for fastening the casing (5) to the measurement target (1). The arrangement is characterized by comprising an element (7), such as a spring element, which rests on the casing (5) and the fastener (6) such that the element (7) is arranged to turn the casing (5) substantially towards the measurement target (1) with respect to the fastener (6).