6results about How to "Resolving poor timeliness" patented technology

The invention provides a fault positioning method and system for a power grid system, and belongs to the technical field of power systems, and the method comprises the steps: obtaining a plurality of initial fault nodes, and constructing a first fault topological graph of each initial fault node according to adjacent nodes of each initial fault node, the adjacent nodes are nodes whose influence factors with the initial fault nodes are greater than a threshold value, determining a target adjacent node and a plurality of positioning factors according to an intersection result of the plurality of first fault topological graphs, constructing a second fault topological graph according to the target adjacent node and the plurality of initial fault nodes, and determining the initial fault nodes according to the second fault topological graph and the plurality of positioning factors. And determining a target fault node and a fault reason of the power grid system. The invention aims to improve the problems of low fault positioning accuracy and long time consumption in the existing scheme.

The present application discloses a device linkage method and device, a storage medium and an electronic device in an Internet of Things network, wherein the method comprises: determining a first linkage path corresponding to a target linkage event according to network topology information of a target Internet of Things network, wherein the target linkage event is a linkage event between a first target device and a second target device in the target Internet of Things network, and the first linkage path is the shortest path from the first target device to the second target device; generating linkage information for each first device among a plurality of first devices on the first linkage path, wherein the linkage information of each first device is used to indicate a linkage operation performed by each first device when the target linkage event is triggered, and the plurality of first devices include a first target device and a second target device; and sending the linkage information of each first device to each first device to control each first device to perform a corresponding linkage operation when the target linkage event is triggered.

The application discloses a pipeline leakage real-time monitoring and early warning device and method, and belongs to the field of pipeline leakage monitoring and early warning.The device comprises a control module, a power supply module, a communication module, a wall thickness monitoring module and a stress monitoring module.The power supply module is responsible for supplying power to the other four modules.The wall thickness monitoring module and the stress monitoring module are responsible for collecting wall thickness thinning and stress signal data of the monitored pipeline.The control module controls the wall thickness monitoring module and the stress monitoring module to process the collected signal data, analyzes the pipeline wall thickness and stress load conditions, and controls the communication module to send early warning information to designated communication equipment when the early warning condition is reached.The device and method have the advantages of real-time monitoring and early warning, low cost and high timeliness, and solve the problems of high installation and maintenance cost, high false alarm rate and poor timeliness of pipeline repair detection of the existing oil and gas pipeline leakage monitoring and early warning device.

The invention belongs to the technical field of food safety detection, and particularly relates to an Au NPs / MXene / WS2 composite material, a preparation method thereof and a sensor. The Au NPs / MXene / WS2 composite material comprises an MXene matrix, the MXene matrix is of a multi-layer organ-shaped structure, wrinkled WS2 nanosheets are loaded between layers of the MXene matrix, and an MXene / WS2 substrate is formed; gold nanoparticles are loaded on the surface of the MXene / WS2 substrate; wherein the particle size of the gold nanoparticles ranges from 100 nm to 150 nm. The photoelectrochemical sensor prepared on the basis of the Au NPs / MXene / WS2 composite material has the advantages of separation of an input signal and an output signal, simplicity in operation and easiness in miniaturization, and meets the requirement of on-site rapid detection.

The present invention provides a method for early warning of toll stations, which includes: obtaining a pre-constructed toll station portrait, the toll station portrait includes a plaza side portrait and a lane side portrait of the toll station; performing correlation analysis on each indicator of the toll station portrait, and establishing a correlation relationship between the toll station delay duration and the upstream flow and the toll lane capacity; obtaining upstream flow monitoring data, and performing flow control on the toll station based on the upstream flow monitoring data and the correlation relationship. In this way, a portrait of the toll station is established from two dimensions, the plaza level and the lane level, so that a more detailed description of the operating status of the toll station can be made, and correlation analysis can be performed using the portrait indicators, and then a more accurate operating status of the toll station can be determined based on the monitored upstream flow data, so as to more accurately control the toll station and improve the utilization efficiency of the toll lane while ensuring the normal operation of the toll station.

The invention discloses a mobile non-tobacco substance detection device, and relates to the technical field of tobacco raw material processing, the mobile non-tobacco substance detection device comprises a cabinet, a power supply and a control host are arranged in the cabinet, the control host is electrically connected with the power supply, and universal wheels are arranged at the bottom of the cabinet; the detection platform is arranged at the top of the cabinet and comprises a bottom plate and a backlight source, the backlight source is arranged at the bottom of the bottom plate and is electrically connected with the power supply, the top plane of the bottom plate is used for placing a to-be-detected object, the backlight source is used for providing uniform light distribution for the to-be-detected object, and the bottom plate is used for light rays of the backlight source to penetrate through; the recognition device is arranged on the bottom plate and comprises a lifting support and a recognition camera, the recognition camera is installed on the top of the lifting support, the shooting direction faces the backlight source, the height of the lifting support is adjustable, and the recognition camera is electrically connected with a power source and is in signal connection with the control host. The device can be flexibly moved to a production site for real-time detection, the timeliness is improved, non-smoke substances can be automatically identified, and the detection efficiency and accuracy are improved.