Meshworks Wireless Oy

Vaisala Oy

Marko Kyrölä

Ilkka Reis

Timo Remes

Samuel Niemi

Arto Kuivanen

Antti Viitanen

Joonas Gustafsson

Juha Simola

Tapani Ritoniemi

Timo Husu

Ville Eerola

Kim Kaisti

Timo Saarnimo

Jukka Makela

Vesa Karttunen

The invention relates to measuring climate inside a longitudinal cavity of a structure from two or more positions. The cavity has two ends that may be ends open to a surface of the structure, or closed ends inside the structure, or a building comprising the structure. The climate is measured by an arrangement inserted to the cavity. The arrangement comprises plurality of interconnectable sections. The sections comprise at least one sensor section and one or more extension sections. The at least one sensor section and one or more extension sections are interconnectable in a series for insertion inside the cavity. The at least one sensor section is configured to measure at least one quantity indicating the climate. The one or more extension sections are configured to position the at least one sensor section from at least one of the ends of the cavity to a measurement position within the cavity.

Measuring climate inside a longitudinal cavity of a structure

The invention relates to a method and an apparatus for codeless GPS positioning. According to the method, the unit (2) to be positioned receives GPS signals from several satellites (4), the codes of the GPS signals are removed, and the extracted carrier signals are transmitted out from the unit (2) to be positioned for the purpose of determining the position and/or velocity of said unit (2) to be positioned. According to the invention, the carrier signal frequencies are detected by means of a phase-locked loop and the thus detected signals are transmitted in digital format out from the unit (2) to be positioned for the purpose of further processing.

Codeless GPS positioning method and apparatus for such codeless

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Tampere, Finland

Marko Kyrölä