System of wireless energy-independent temperature and strain sensors for aircraft control and monitoring systems with the data transmission based on radio identification technology

A system of wireless data transfer using energy-independent temperature and strain sensors was developed on radio-frequency identification (RFID) technology and Bluetooth (BT). In case of RFID technology, the radio wave energy conversion is used to provide the power supply of transceiver. This ensures the battery lifetime on one set of batteries up to 5 years and longer. Bluetooth technology enables a fast transmission of a large data volume. BT technology is used only in exceptional cases and the system remains in the off state until a request to connect to the RFID channel is received. The proposed solution allows maintaining a long battery lifetime without sacrificing performance of wireless data transfer. Basic design criteria of wireless energy-independent sensors were formulated.