Patent ID: 8401777

Claim:
A coupling device for gas and liquid systems, the coupling device being arranged in an engine compartment of a vehicle, and the coupling device being a quick coupling including a first and a second coupling part, the coupling device comprising: a passive transponder, the passive transponder being configured to wirelessly transmit and receive data via communication protocols; at least one passive sensor configured to measure at least one quantity, the at least one passive sensor being connected to the passive transponder, the at least one passive sensor being activated with energy induced by the passive transponder; and an application specific integrated circuit (ASIC) configured to locally process sensor signals, the ASIC being integrated with the at least one passive sensor and the passive transponder, the ASIC being activated with the energy induced by the passive transponder, and wherein the passive transponder, the at least one passive sensor and the ASIC are arranged in a sealing ring, which sealing ring is arranged spatially between said first and second coupling parts.