Method and internet of things (IoT) system for corrosion supervision of gas pipeline

A method for corrosion supervision of a gas pipeline, implemented through a smart gas safety management platform of an Internet of Things (IoT) system for corrosion supervision of a gas pipeline, comprising:

• obtaining inspection data of a gas pipeline in a gas pipeline network;
• constructing a first pipeline diagram of the gas pipeline network based on the inspection data;
• determining a corrosion probability of the gas pipeline based on the first pipeline diagram using a corrosion probability model, the corrosion probability model being a machine learning model;
• wherein
• the first pipeline diagram includes nodes and edges, the nodes in the first pipeline diagram include a first type of nodes corresponding to monitoring device installation points and a second type of nodes corresponding to pipeline demarcation points, features of the first type of nodes include the inspection data, features of the second type of nodes is null;
• and features of the edges in the first pipeline diagram include a gas flow direction, pipeline features, and an environmental unit feature sequence;
• determining one or more estimated pipeline corrosion regions based on the corrosion probability of the gas pipeline;
• obtaining in-depth inspection data of the gas pipeline by performing in-depth inspection on at least one of the estimated pipeline corrosion regions;
• determining corrosion features of the one or more estimated pipeline corrosion regions based on gas monitoring data and the in-depth inspection data of the gas pipeline;
• in response to the corrosion features satisfying a first preset condition,
• generating a plurality of candidate repair paths based on a second preset condition, and determining a target repair path by performing a plurality of iterations on the plurality of candidate repair paths based on evaluation values;
• wherein
• each of the plurality of iterations includes filtering the plurality of candidate repair paths based on the evaluation values, wherein the evaluation values include a first evaluation value and a second evaluation value;
• the first evaluation value is negatively related to an invalid path length of a path that a repair robot passes through;
• and the second evaluation value is positively related to a sum of corrosion degrees of corrosion regions that the repair robot passes through;
• determining a repair plan at least based on the target repair path;
• and
• controlling the repair robot to enter the gas pipeline and repair the gas pipeline according to the repair plan, wherein the repair plan includes a repair path of the repair robot.