Parameter measurement system for a mounted assembly

A system for measuring parameters of a mounted assembly,

• the mounted assembly consisting of a tire casing and of at least one wheel,
• the system comprising an electronic device for measuring parameters of the mounted assembly and a bonding interface made of an elastomeric material surrounding at least partially the electronic device and serving as an interface between the tire casing and the electronic device, and
• the electronic device comprising:
• a UHF radiofrequency antenna;
• and
• an electronic board comprising:
• an electronic chip coupled to the UHF radiofrequency antenna;
• at least one sensor for measuring parameters of the mounted assembly;
• a microcontroller;
• and
• an electrical circuit connecting the electronic chip, the microcontroller, and the at least one sensor for measuring parameters of the mounted assembly,
• wherein the system comprises a ground plane connected to the electronic board, the electronic board comprises a capacitive element and an energy manager, the coupling between the electronic chip and the UHF radiofrequency antenna is an electrical coupling, and the electronic chip, the microcontroller and the at least one sensor for measuring parameters of the mounted assembly are low energy consumption components, and
• wherein the UHF radiofrequency antenna is a half-wave dipole monoband antenna, a total length L of which satisfies the following limits:
• 0.9*C/(2*f)<L<1.1*C/(2*f),
• in which C is the speed of radiofrequency waves in a medium in which the UHF radiofrequency antenna is embedded and f is a communication frequency of the UHF radiofrequency antenna.