Gas leak detection device, gas leak detection system, and gas leak detection method
AssigneeNEC Corporation
InventorDaisuke Takei
Life of this patent
Estimating the term…
Abstract
The purpose of the present invention is to provide a gas leak detection device and the like which are capable of detecting a gas leak from a pipe via a simple configuration. A gas leak detection device (2) comprises: a wind direction/wind speed detection means (21) that generates wind direction/wind speed information expressing the distribution of the wind directions and the wind speeds at the periphery of a pipe by means of LiDAR; an air flow detection means (22) that generates information about the air flow at the periphery of the pipe using the wind direction/wind speed information; and a gas leak detection means (24) that detects a gas leak or a vapor leak from the pipe using the information about the air flow.
Claims15
A gas leak detection device comprising:
- at least one memory configured to store instructions;
- and at least one processor configured to execute the instructions to
- generate, by LiDAR, wind direction and wind speed information indicating a distribution of a wind direction and a wind speed around a pipe,
- generate information concerning a gas flow around the pipe by using the wind direction and wind speed information, and
- detect a gas leak or a vapor leak of the pipe by using the information concerning the gas flow,
- wherein the at least one processor generates the wind direction and wind speed information based on a difference between a frequency component included in laser light irradiated to an area including the pipe and a frequency component included in first reflected light being reflected light of the laser light being caused by an aerosol particle in the area, and
- wherein the at least one processor generates position and shape information indicating a position and a shape of the pipe, based on second reflected light including reflected light of the laser light being caused by the pipe.
A gas leak detection method comprising:
- generating, using at least one memory configured to store instructions;
- and at least one processor configured to execute the instructions, by LiDAR, wind direction and wind speed information indicating a distribution of a wind direction and a wind speed around a pipe;
- generating, by the at least one processor, information concerning a gas flow around the pipe by using the wind direction and wind speed information;
- and
- detecting, by the at least one processor, a gas leak or a vapor leak of the pipe by using the information concerning the gas flow,
- wherein generating the wind direction and wind speed information comprises generating the wind direction and wind speed information based on a difference between a frequency component included in laser light irradiated to an area including the pipe and a frequency component included in first reflected light being reflected light of the laser light being caused by an aerosol particle in the area, and
- wherein the gas leak detection method further comprises generating position and shape information indicating a position and a shape of the pipe, based on second reflected light including reflected light of the laser light being caused by the pipe.
Dependencies are inferred from the claim text.