A method for initialising a tyre monitoring device (e.g. a tyre-mounted sensor of a tire pressure monitoring system (TPMS) for an aircraft). The sensor device (10; fig. 1) is operated in a first lower power mode 802 (power-saving storage mode, dormant state) in which it only responds to a wireless initialisation command (e.g. sent by a configuration device (14; fig. 1)). Once the instruction has been received 804, the sensor operates in a second higher-power normal operation mode 806 in which it responds to other instructions. In the low power mode, battery power to a component (e.g. pressure and temperature sensors (208, 209; fig. 2) or indicator (204; fig. 2)) may be restricted or no power may be provided. The device may include two wireless communication transceivers (212, 214; fig. 2), e.g. respectively using short-range passive lower energy radio frequency (RFID) or near field communication (NFC), and a longer range, e.g. Wi-Fi ®. Only short-range communication may be possible in low power mode. There may be a counter to keep a log of time in the first and/or second modes, e.g. to determine remaining battery. The sensor may return to the first mode when a fault is detected.
Initialisation of tyre monitoring devices
2020-12-23
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |