Patent ID: 7455475
Filing Date: 2008-11-25
Classification: E01C

Abstract:
1. A method for fastening an electronic module with an aerial to a road surface comprising the steps of: providing an element comprising a bottom side and a top side and a fastening ring protruding from the bottom side, the fastening ring comprising a material being liquefiable by mechanical excitation, providing an electronic module with an aerial, providing a device comprising an oscillating unit and a tubular sonotrode connected to the oscillating unit and being adapted to the fastening ring, fastening the electronic module to the bottom side of the element within the fastening ring, positioning the element with the electronic module and the aerial fastened thereto on the road surface with the bottom side facing towards the road surface, pressing the element onto the road surface by pressing the oscillating sonotrode onto the element thereby liquefying the liquefiable material at least partly and pressing it into the road surface thereby fastening the fastening ring to the road surface and forming a hermetically closed space for the electronic module.