Radiofrequency reading system on board a means of transport

A transport means equipped with at least one movable assembly capable of ensuring relative movement of the transport means with respect to another mechanical system,

• the at least one movable assembly consisting of a deformable part set in motion about at least one axis of rotation by a non-deformable assembly,
• free movement of the at least one movable assembly taking place in a predominantly two-dimensional plane in a reference frame associated with the at least one movable assembly,
• the deformable part of the at least one movable assembly defining a median plane which is perpendicular to the at least one axis of rotation,
• the at least one movable assembly being equipped with a radiofrequency transponder comprising a radiofrequency transponder reading system,
• the radiofrequency transponder reading system comprising:
• a generator of electrical signals emitting at a frequency F0 included in an ultra-high frequency band, coupled to a demodulator of electrical signals adapted to a frequency band around F0, mounted on the transport means;
• and
• at least one bidirectional communication cable comprising a conductive core covered with a dielectric material, the dielectric material being covered with a conductive assembly, being partly flexible, having one end galvanically connected to the generator of electrical signals, the length lo of which is divided according to a metric of which a unit is a wavelength defined by the frequency F0, the at least one bidirectional communication cable being fixed to the transport means externally of the at least one movable assembly, comprising a radiating part,
• wherein a curvilinear abscissa of a first continuous part of the radiating part of the at least one bidirectional communication cable is at least greater than one unit of cable length,
• wherein a distance of an orthogonal projection P of the first continuous part of the radiating part of the at least one bidirectional communication cable on a plane of the deformable part located between two contiguous axes of rotation and collinear with the two contiguous axes of rotation and/or a distance of a radial projection R of the first continuous part of the radiating part of the at least one bidirectional communication cable on a cylinder, of axis of revolution coaxial with the at least one axis of rotation of the non-deformable assembly, circumscribing the deformable part in contact with the non-deformable assembly, is less than or equal to 1 meter, and
• wherein a distance of an axial projection A, in a direction of the at least one axis of rotation, of the first continuous part of the radiating part of the at least one bidirectional communication cable on the median plane of the deformable part of the at least one movable assembly is less than or equal to 2 meters.