VEHICLE WITH AN OCCUPANCY DETECTION SYSTEM AND A METHOD FOR WARNING REGARDING A LIVING BEING FORGOTTEN IN A VEHICLE

A vehicle includes an occupancy detection system made up of at least one computing unit and at least four antennae. The occupancy detection system is configured to transmit Wi-Fi radio signals by multiple-input multiple-output communication in an occupancy detection mode. At least two first antennae arranged inside the vehicle are configured to send out Wi-Fi packages and at least two further antennae arranged inside the vehicle are configured to receive these and to transmit them to the computing unit. The computing unit analyses the received Wi-Fi packages, taking into consideration a relation between sending and receiving antennae for investigating channel state information, to determine periodic variations in the channel state information in order to detect the presence of at least one living being in the vehicle.