2results about How to "Maintain security and stability" patented technology

The application provides a relay fault detection method and device, electronic equipment and storage medium, and belongs to the technical field of fault detection. The method comprises the following steps: acquiring electrical data, action time data, shell temperature data and environmental humidity data collected by a relay checker; the electrical data, the action time data, the shell temperature data and the environmental humidity data are respectively preprocessed to obtain a standard feature data set; the electrical data comprises power, current and voltage, and the action time data comprises attraction time and release time; abnormal mark data is determined based on the standard feature data set and rated reference data; correlation feature analysis is performed on the standard feature data set to obtain correlation abnormal mark data; fault risk data is obtained based on the abnormal mark data and the correlation abnormal mark data; and a fault determination result is obtained based on the fault risk data. The application can improve the accuracy of relay fault detection.

The invention relates to the field of municipal pipelines, and discloses a municipal drainage pipeline connector sealing mechanism and method.The municipal drainage pipeline connector sealing mechanism comprises a first drainage pipe and a second drainage pipe, the outer end of the first drainage pipe is provided with a first socket and a first spigot, and the outer end of the second drainage pipe is provided with a second socket and a second spigot; the first inserting opening can be inserted into the second bell mouth, and a sealing structure is arranged between the second bell mouth and the first inserting opening. Preferably, the sealing structure comprises a rubber ring, the rubber ring is arranged on the outer side of the first inserting opening, and when the first inserting opening is inserted into the second bell mouth, the rubber ring is compressed between the second bell mouth and the first inserting opening. The device is simple and convenient to construct and low in manufacturing cost, and can reduce the manpower and material resource cost in the interface sealing engineering; meanwhile, the sealing performance is enhanced, the possibility of water leakage is reduced, sewage leakage is prevented, related hazards are reduced, urban ecology and infrastructure safety are maintained, and health and comfort of the living environment of citizens are guaranteed.