System and method of seat belt wireless communication

The present invention provides a wireless communication system for a seat belt, capable of reducing the consumption rate of a battery by turning off power when wireless communications are unnecessary, and a method for the same. The wireless communication system for a seat belt includes: a fastening...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BOK CHANG KYU, SHIN DONG RYUL, KIM MAN SEOK, KIM SU CHEON, YOON YONG CHAN
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention provides a wireless communication system for a seat belt, capable of reducing the consumption rate of a battery by turning off power when wireless communications are unnecessary, and a method for the same. The wireless communication system for a seat belt includes: a fastening detection unit installed for each seat, and detecting whether the seat belt is fastened; a slave control unit installed for each seat and woken up via the wireless communication with a vehicle, wherein the slave control unit also transmits a slave data signal including a buckle state detected by the fastening detection unit via wireless communications and is converted into a slip state after the slave data signal is transmitted; a master control unit installed in the vehicle, and storing the slave data signal by receiving the slave data signal wirelessly transmitted by each slave control unit, wherein the master control unit transmits the stored slave data signal to a system controller of the vehicle; and a harvesting circuit unit wirelessly transmitting a signal for harvesting by the master control unit and receiving the wirelessly transmitted signal for harvesting from the each slave control unit, wherein the harvesting circuit unit also performs energy harvesting during a process of receiving the signal for harvesting. 본 발명은 시트 별로 마련되고, 시트벨트의 체결 여부를 검출하는 체결검출수단; 시트 별로 마련되고, 차량과의 무선통신을 통해 웨이크업되며, 체결검출수단에 의해 검출되는 버클상태를 포함한 슬레이브데이터신호를 무선통신에 의해 전송하고, 슬레이브데이터신호 전송 이 후에 슬립상태로 전환되는 슬레이브제어부; 차량에 마련되고, 각각의 슬레이브제어부에서 무선 송신된 슬레이브데이터신호를 수신하여 저장하며, 저장된 슬레이브데이터신호를 차량의 시스템제어기에 전송하는 마스터제어부; 마스터제어부가 하베스팅용 신호를 무선 송신하고, 무선 송신된 하베스팅용 신호를 각각의 슬레이브제어부에서 수신하며, 하베스팅용 신호의 수신 과정에서 에너지 하베스팅을 수행하는 하베스팅회로부;를 포함하는 시트벨트 무선통신 시스템 및 방법이 소개된다.