Transmission quality evaluation of Tire Pressure Monitoring Systems

Many papers dealing with the TPMS (Tire Pressure Monitoring System) communication mechanisms between sensors (transmitters) and receiver have been published, but most of the work has been focused on the particular effects of the radiofrequency channel [1], the antenna design [2], the communication protocol or the mechanical housing. The full transmission context analysis lacks to the understanding of the observed phenomena, in particular the effects of propagation channel on dynamic reception quality for TPMS. In this study, we propose a step by step analysis by evaluating the influence of each element contributing to the overall performance of the communication process. In the first section, an original space sounding is developed to characterize the radiofrequency channel variation. The second part presents simulations in order to improve the burst reception efficiency: the protocol is investigated versus different channel profiles in order to reduce the rate of lost frames.