Measurement time determination device, measurement time determination method, and computer-readable recording medium
AssigneeNEC Corporation
InventorsHirofumi Inoue, Katsumi Kikuchi, Shigeki Shinoda, Shin Tominaga
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Abstract
To reduce erroneous determinations of detecting a leak, a measurement time determination device is provided with: a degree-of-ease calculation unit configured to calculate degree-of-ease of detecting a leak in piping, based on vibration propagating through the piping or a fluid flowing through the piping when the piping is vibrated; and a determination unit configured to determine a measurement time necessary for detecting the leak, based on the degree-of-ease.
Claims8
A measurement time determination device, comprising:
- an input interface configured to receive vibration measurement results transmitted from a plurality of vibration sensors attached to piping;
- a degree-of-ease calculation-unit configured to calculate degree-of-ease of detecting a leak in the piping, based on the received vibration measurement results of vibration propagating through the piping or a fluid flowing through the piping when the piping is vibrated, the degree-of ease representing a signal-to-noise ratio, the signal being a leak vibration to be sensed, the noise being generated due to a cause other than the leak vibration;
- a determination-unit configured to determine a plurality of measurement times necessary for detecting the leak, based on the degree-of-ease, the measurement times being determined for each of a plurality of the leak vibrations having a different magnitude;
- and
- a leak detection unit configured to detect a position in the piping of the leak based on the plurality of measurement times determined by the determination-unit.
A measurement time determination method, comprising:
- receiving vibration measurement results transmitted from a plurality of vibration sensors attached to piping;
- calculating degree-of-ease of detecting a leak in the piping, based on the received vibration measurement results of vibration propagating through the piping or a fluid flowing through the piping when the piping is vibrated, the degree-of ease representing a signal-to-noise ratio, the signal being leak vibration to be sensed, the noise being generated due to a cause other than the leak vibration;
- determining a plurality of measurement times necessary for detecting the leak, based on the degree-of-ease, the measurement times being determined for each of a plurality of the leak vibrations having a different magnitude;
- and
- detecting a position in the piping of the leak based on the determined plurality of measurement times.
A non-transitory computer-readable recording medium that stores a program causing a computer to execute:
- processing of receiving vibration measurement results transmitted from a plurality of vibration sensors attached to piping;
- processing of calculating degree-of-ease of detecting a leak in the piping, based on the received vibration measurement results of vibration propagating through the piping or a fluid flowing through the piping when the piping is vibrated, the degree-of ease representing a signal-to-noise ratio, the signal being leak vibration to be sensed, the noise being generated due to a cause other than the leak vibration;
- processing of determining a plurality of measurement times necessary for detecting the leak, based on the degree-of-ease, the measurement times being determined for each of a plurality of the leak vibrations having a different magnitude;
- and
- processing of detecting a position in the piping of the leak based on the determined plurality of measurement times.
Dependencies are inferred from the claim text.