Method and system for detecting the approach of a terminal device to a vehicle based on the information about a signal strength that is received via a Bluetooth transmission channel of low energy (BLE)

摘要

PEPS system comprising: a terminal and a vehicle, comprising: a plurality of sensors and a central module that is communicatively coupled to the terminal and the sensors via short-range wireless connections, the central module being configured to be measured based on information from the sensors or the terminal and determine signal strengths provided to determine whether the terminal is within an area for authorization and to control the execution of at least one PEPS go function on the vehicle if the terminal is determined to be within an area for authorization; and wherein the short-range wireless connections comprise Bluetooth wireless connections and in which the central module is further configured to carry out a filtered scan for an offer message transmitted by the terminal via a provider channel and, if the terminal is recognized during the scan, a "found message" to everyone of the sensors, which indicates that the sensors should start a scan for a first offer message transmitted by the terminal via a offer channel; each sensor being designed to determine the information about the signal strength for the first offer message and to send a report message transmit the central module, which contains the information about the signal strength and a first Bluetooth address for the terminal, and wherein the central module is designed to, based on the information about the signal strength from reports received from the sensors notifications to determine the distance of the terminal from the vehicle and to determine whether the terminal is within the range for authorization based on the distance of the terminal from the vehicle.