Smartrac I.p. B.v.

Oseir Oy

Smartrac Investment B.v.

Juha Vattulainen

Heikki Seppä

Kaarle Jaakkola

Kaj Nummila

Juhani Virtanen

Tuomas Koskelainen

Miika Huusko

Mikko Nikkanen

Antti Manninen

Harri Aalto

Kaj Nummiila

A method for determining a value of an environment variable using raw data from an energetically essentially passive remote-access apparatus. A value of a first measurable quantity indicative of the environment variable is obtained from the raw data. The value of the environment variable is determined using calibration data and the value of the first measurable quantity. The accuracy is enhanced by measuring the value of the measurable quantity with a measuring signal of which strength is regulated or by obtaining a value of a second measurable quantity. The second measurable quantity is indicative of the environment variable or measurement conditions of the first measurable quantity. A method for forming calibration data for the measurements. RFID reader devices arranged to carry out the methods and energetically essentially passive remote-access apparatuses for the methods. A database that may be used with the method and a computer product including the database.

Methods for enhancing the accuracy of environment measurements using a remote-access apparatus

The invention relates to method for imaging measurement of a moving or flowing target and to an imaging measuring device for implementing the aforementioned method. Moreover, the invention relates to the use of information measured by means of imaging measurement in the control and/or adjustment of a process. According to the invention, electromagnetic radiation obtained from the moving or flowing target (T) is focused by means of imaging optics to produce an image to the screen of a two-dimensional matrix detector at least via a first and a second filter (F, F) which transmit electromagnetic radiation in manners differing from each other. Said at least first and second filter form on the screen of the detector at least a first and a second filter area (FR, R) that partly cover the light-sensitive area (DA) of the detector. The properties of the target (T) are determined spectroscopically by comparing and/or combining spectrally resolved information, which is recorded when a pixel which corresponds to a determined part of the target kto be measured and is focused on the screen (DA) of the matrix detector without beamsplitting travels under the effect of the movement of the target (T) via said at least first and second filter area (FR, FR). The area of the screen (DA) of the detector remaining outside siad filter areas (FR, FR) is used for other kind of imaging non-spectroscopic measurement and/or visualization of the target.

Method for imaging measurement, imaging measurement device and use of measured information in process control

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Kangasala, Finland

Juha Vattulainen