6results about How to "Avoid unplanned downtime" patented technology

The present application relates to the technical field of scraper conveyor, and particularly relates to a chain breakage fault pre-judgment device and method of a scraper conveyor and the scraper conveyor, the device comprising: a controller, a first plug plate and a first magnetic sensor fixed to the first plug plate; a conveying groove of the scraper conveyor is provided with a first opening, the first plug plate is inserted into the first opening and located at a side of the chain close to a chain channel, and the first magnetic sensor is fixed to the first plug plate and opposite to one side of the chain; in the process of running of the chain of the scraper conveyor, the first magnetic sensor collects a first magnetic characteristic signal of a chain link passing through the first magnetic sensor; the controller is connected with the first magnetic sensor, the damage state of the chain link is analyzed according to the first magnetic characteristic signal, and whether the chain link is a chain breakage fault risk point is pre-judged based on the damage state. In this way, the present application pre-judges the chain damage of the scraper conveyor in advance, so as to realize the early warning and preventive maintenance of the chain breakage fault, and the operation reliability and safety of the scraper conveyor are improved.

The present disclosure belongs to the technical field of hydrogen production by water electrolysis, and provides a hydrogen evolution electrode damage quantification and positioning method based on a reverse voltage plateau period, wherein the quantification method comprises: determining an electrolytic tank shutdown event and synchronously collecting electrolytic tank parameter data; based on the electrolytic tank parameter data, extracting single-cell characteristic parameters of a mixed potential plateau period; constructing an electrode damage equivalent model, and inputting the characteristic parameters to calculate single-cell damage equivalents. The present disclosure proposes and establishes a quantitative mapping relationship between the "reverse voltage plateau duration T" and the "electrode corrosion damage amount", and realizes online, quantitative and spatial positioning evaluation of internal damage of an alkaline electrolytic tank based on the same.

This invention discloses a method and system for determining and controlling hydrogen leakage faults in fuel cell vehicles. The method includes determining the vehicle's operating state, which includes normal driving, high-voltage idling, and low-voltage idling. It also involves real-time monitoring of the hydrogen concentration in the vehicle's fuel cell system. When the hydrogen concentration exceeds a preset concentration threshold: if the vehicle is in normal driving, a hydrogen leakage fault handling mechanism is executed; if the vehicle is in high-voltage idling, the hydrogen storage system pressure is checked, and the decision to execute the hydrogen leakage fault handling mechanism is determined based on the result; if the vehicle is in low-voltage idling, the power supply voltage of the hydrogen concentration sensor and the hydrogen storage system pressure are checked, and the decision to execute the hydrogen leakage fault handling mechanism is determined based on the result. This method effectively distinguishes between actual leaks and sensor malfunctions or residual hydrogen interference from exhaust emissions, significantly reducing false alarm rates and improving the accuracy and reliability of hydrogen safety management.

This application provides a dynamic control method for mines based on system instability potential energy and collaborative autonomy, relating to the field of intelligent control and automation technology for mine production. The method includes: collecting multi-source heterogeneous data from the mine production system, including equipment status data, environmental parameters, and production task flow data, and constructing a dynamic relationship graph, where nodes represent mine equipment, production areas, or environmental monitoring points, and edges represent the interaction relationships between nodes; based on the dynamic relationship graph, using a graph neural network to calculate the state and local instability potential energy of each node; based on the local instability potential energy of all nodes, generating a system-level instability potential energy field and predicting the future potential energy field to identify high-risk areas; based on the system-level instability potential energy field and gradient information, controlling an intelligent agent to perform autonomous control through a distributed decision-making approach to reduce the risk of system instability; after executing the control, collecting new data, updating the dynamic relationship graph and potential energy field, and fine-tuning the model by comparing predictions with actual results.

The utility model discloses a kind of alkali water electrolytic cell polar plate insulating coating peeling early warning system, including the flexible grid pressure-sensitive resistance film pre-buried in polar plate outer edge surface insulating coating, the optical fiber sensor pre-buried in polar plate outer edge surface insulating coating, resistance value data acquisition module, optical signal data acquisition module, optical signal data of optical fiber sensor and the monitoring early warning system containing analysis and alarm module, monitoring early warning system is according to resistance value data and optical signal data analysis and judge whether coating peeling condition occurs, and alarm signal is sent when coating peeling;Flexible grid pressure-sensitive resistance film is connected resistance value data acquisition module by resistance data lead-out wire, optical fiber sensor is connected optical signal data acquisition module by optical signal data lead-out wire, resistance value data acquisition module, optical signal data acquisition module are respectively connected monitoring early warning system.The utility model realizes the on-line real-time monitoring and initiative early warning of electrolytic cell polar plate insulating coating state.

The application discloses a coal conveying belt operation protection method and system based on data analysis, which comprises the following steps: acquiring and analyzing multi-dimensional operation monitoring data of the coal conveying belt to determine abnormal parameters; determining abnormal data features based on the data of the abnormal parameters, and determining the abnormal degree of the abnormal parameters based on the abnormal data features; fusing different abnormal parameters to obtain high-dimensional fused abnormal parameters, and determining the abnormal operation type of the coal conveying belt based on the high-dimensional fused abnormal parameters; determining the comprehensive abnormal degree of the high-dimensional fused abnormal parameters based on the abnormal degree of the abnormal parameters, and judging whether to perform operation protection on the coal conveying belt based on the comprehensive abnormal degree; determining the operation protection action of the coal conveying belt based on the comprehensive abnormal degree and the abnormal operation type, and protecting the operation of the coal conveying belt based on the operation protection action. The application determines the protection action of the coal conveying belt in advance through multi-dimensional data comprehensive quantitative analysis, realizes the leap from post-protection to intelligent pre-decision, and greatly improves the safety level of the operation of the coal conveying belt.