| 主权项 |
1. A method for estimating a wave velocity of a negative pressure wave in a fluid transportation pipeline, wherein the negative pressure wave is generated due to a normal operation on the fluid transportation pipeline, the method comprising:
receiving, at a processor unit, a plurality of pressure signals from a plurality of sensors, wherein the transportation pipeline includes a plurality of sensor segments, each of which is disposed between corresponding two adjacent sensors of the plurality of sensors; determining, by said processor unit, a location of a wave source of the negative pressure wave; determining, by said processor unit, at least one non-wave source sensor segment of the plurality of sensor segments based on the determined location of the wave source, wherein the at least one non-wave source sensor segment is a sensor segment where the wave source is not located; determining, by said processor unit, a wave source sensor segment of the plurality of sensor segments based on the determined location of the wave source, wherein the one wave source sensor segment is a sensor segment where the wave source is located; determining, by said processor unit, time differences produced by the negative pressure wave reaching the adjacent sensors, based on the plurality of pressure signals; and estimating, by said processor unit, the wave velocities of the negative pressure wave in the at least one non-wave source sensor segment and the wave source sensor segment, based on the determined time differences, |
