Patent ID: 8511179

Claim:
Aircraft conduit monitoring system comprising a conduit that conducts gas from a source to a point of application, a flow sensing device for sensing a gas mass flow rate in the conduit, a pressure sensing device for sensing a static pressure in the conduit and a control device which is configured to sense in a learning mode of operation at least one learning mode of operation actual gas mass flow rate value and to store the learning mode of operation actual gas mass flow rate value as a set gas mass flow rate for a normal mode of operation and to sense a learning mode of operation actual pressure value and to store the learning mode of operation actual pressure value as a set pressure for the normal mode of operation and to compare in the normal mode of operation a normal mode of operation actual gas mass flow rate with the set gas mass flow rate and/or to compare a normal mode of operation actual pressure with the set pressure, and if the normal mode of operation actual gas mass flow rate deviates by more than a threshold value from the set gas mass flow rate and/or if the normal mode of operation actual pressure deviates by more than a threshold value from the set pressure, to emit a signal which indicates a deviation, characterised in that the control device is further configured to sense in the learning mode of operation a plurality of learning mode of operation actual gas mass flow rate values at different learning mode of operation actual pressures, to assign each learning mode of operation actual gas mass flow rate value to a corresponding learning mode of operation actual pressure value, and to store each learning mode of operation actual gas mass flow rate value as a set gas mass flow rate for a normal mode of operation, each learning mode of operation actual pressure value as a set pressure for a normal mode of operation and an association between the respective set pressure and the respective set gas mass flow rate.