12results about How to "Prevent malfunction" patented technology

This invention provides an AI real-time prediction method and apparatus. The method includes: obtaining a physical plan based on an AI-related SQL statement; obtaining a configured AI engine based on the physical plan and real-time AI metadata; using the configured AI engine to predict data to be predicted and obtaining prediction results; the amount of data to be predicted is dynamically adjusted according to data backlog. This invention seamlessly integrates an AI framework based on SQL statements, supports AI models trained in different modeling environments, avoids AI models failing to execute due to environmental differences, and eliminates the need for code development using programming languages ​​such as Java and Python. It achieves data stream preprocessing and real-time AI model prediction, improving the usability of real-time AI prediction solutions.

The application discloses a secure communication trajectory planning method for unmanned aerial vehicles with integrated control of an adaptive antenna, constructs an air-ground secure communication model containing rigid body dynamics constraints, and determines that the attitude of the unmanned aerial vehicle body is uniquely determined by the translational acceleration vector and the gravity acceleration; for horizontal-horizontal (HH) and vertical-vertical (VV) two kinds of airborne antenna configurations, an explicit coupling model of the antenna gain with respect to the acceleration is established; a non-convex trajectory optimization problem is constructed to maximize the average secrecy capacity; a sequential convex approximation combined with a convex difference programming strategy is adopted for solving, wherein the implicit function differentiation method is adopted to solve the gradient singularity problem of the VV antenna null point; and finally, a flight strategy containing an optimal acceleration sequence is output. The application utilizes the active change of the flight attitude of the unmanned aerial vehicle to realize mechanical beamforming, significantly improves the secrecy capacity through "active drift" or "null alignment" maneuvering, and the generated trajectory strictly satisfies the physical feasibility.

The application discloses a kind of hot spot temperature anomaly early warning methods of insulated bus duct, belong to the online monitoring technical field of electric power equipment.For the problem that existing bus duct temperature monitoring only relies on fixed absolute threshold, early warning is seriously lagging behind, the real-time temperature data of bus duct connector is obtained, the change rate of temperature with time is calculated, including short-term change rate and long-term change rate;When long-term change rate is positive and exceeds the preset aging rate threshold, a first early warning signal is generated;At the same time, according to real-time temperature data and long-term change rate, the predicted threshold below the absolute temperature threshold is dynamically calculated, and a second early warning signal is generated when the real-time temperature reaches the predicted threshold.The application combines trend analysis with dynamic threshold, realizes early identification of early signs of insulation aging and prior prediction of thermal runaway risk, effectively solves the problem of early warning lag in the prior art, and significantly improves the operation reliability and operation efficiency of bus duct power supply system.

This invention discloses a heat exchanger and heat exchange method, in which the water chambers of a first thin-walled barrel-type heat exchanger, a second thin-walled barrel-type heat exchanger, and a third thin-walled barrel-type heat exchanger are sequentially connected. The water chamber of the first thin-walled barrel-type heat exchanger is connected to a steam outlet pipe, and the water chamber of the third thin-walled barrel-type heat exchanger is connected to a third water inlet pipe. Water in the third water inlet pipe can pass through the three water chambers and then be discharged through the steam outlet pipe. The inner chamber of the first thin-walled barrel-type heat exchanger is a first flue gas chamber, a second flue gas chamber is provided between the second and first thin-walled barrel-type heat exchangers, and a third flue gas chamber is provided between the third and second thin-walled barrel-type heat exchangers. The first, second, and third flue gas chambers are sequentially connected. The flue gas generated by the burner can enter the first, second, and third flue gas chambers and exchange heat with the water in the three water chambers. This improves the heat exchange efficiency.

The utility model relates to nylon polymerization wastewater treatment technical field especially relates to a kind of nylon polymerization wastewater treatment device, comprising: treatment pond, rotating motor is fixedly installed on the treatment pond, the output shaft of rotating motor is fixedly installed with reciprocating lead screw, reciprocating lead screw is threadedly sleeved with moving block, opening is opened on the moving block, two groups of bubble scraping structure are installed in the opening, the bubble scraping structure includes multiple pivot one rotationally installed in opening, multiple pivot one are uniformly fixedly installed with spur gear one, multiple adjacent spur gear one are mutually engaged transmission, rack is fixedly installed in the treatment pond, rack is engaged with one spur gear one, the lower end of multiple pivot one is equipped with scraper.

The utility model provides a kind of anti-dismantling anti-winding joint structure, including pipe fitting, limit ring and nut.The limit ring rotationally covers and is set on the annular groove of pipe fitting end portion outer periphery, and end portion forms the support portion of cladding pipe fitting end portion outer circle, and the end portion of the support portion exceeds the end portion of pipe fitting.The nut includes nut main body and sleeve shell.The nut main body rotationally covers and is set on pipe fitting end portion and limit ring outer periphery, the limit step of accommodating support portion is equipped in the nut main body, and the one end end portion of the nut main body towards pipe fitting is equipped with positioning groove.The sleeve shell rotationally covers and is set on the outer peripheral portion of nut main body, and the one end of the sleeve shell towards pipe fitting is equipped with the connecting channel opposite to positioning groove.The shower fitting structure provided by the utility model, after installation, shower inlet end only presses limit ring, pipe fitting and shower can relatively rotate, avoid winding, and nut is composed of relatively rotating nut main body and sleeve shell, so that shower fitting has anti-dismantling function.

The application relates to the technical field of signal processing plate production, and particularly discloses a high-precision high-density circuit impedance signal processing plate pressing device, the side surface of a main body is fixedly connected with a feeding component, the side, away from the feeding component, of the main body is fixedly connected with a discharging component, and the top of the feeding component and the discharging component is fixedly connected with clamping components. The high-precision high-density circuit impedance signal processing plate pressing device is provided with a striking assembly, in the pressing process, the circuit board may be slightly adhered at the inner cavity of the placing seat, the adhesion can be effectively broken through striking vibration, the circuit board can be smoothly separated from the inner cavity of the placing seat, the discharging efficiency is improved, and the problem of poor discharging or material jamming caused by adhesion is avoided; if the circuit board is jammed in the placing seat due to adhesion in production, manual intervention is needed, and the continuity of production is reduced, and the vibration design can effectively avoid such a situation.

The utility model relates to water conservancy pipeline connection technical field, and disclose a pipeline connecting device for hydraulic engineering, including first pipeline and second pipeline, first pipeline one end is connected with first connector, second pipeline one end is connected with second connector, second connector extends into first connector inside and is matched with first connector. Through the design of detection mechanism, if the situation of leaking appears when first pipeline and second pipeline are connected well, then the leaked water will be absorbed by the sponge block and the sponge strip, the weight of the absorbed sponge block and the sponge strip will increase, prompting the overall downward movement of the rectangular block, prompting the control panel to push the double -colored ring, at this moment, the area of different color on the double -colored ring before stays in the through -groove position, the user can directly know the leakage situation after pipeline connection through the change of double -colored ring extension, avoid the condition of not being discovered in time because of slight leakage.

The utility model discloses an adjustable dust sticking roller, including installation frame, installation frame inside fixed setting has installation top board, installation top board top is provided with elevating type adjusting assembly, installation top board bottom is provided with moving frame through elevating type adjusting assembly, moving frame slidingly arranged in the inside of installation frame, moving frame surface and installation frame surface all are provided with dust sticking roller assembly, and the movement is driven through elevating type adjusting assembly, makes simultaneously drive multiple dust sticking roller and moves, makes multiple dust sticking roller can move in synchronization, makes multiple dust sticking roller distance of moving same, avoided the emergence multiple dust sticking roller adjustment height after inharmonious leads to dust sticking roller unable to contact the condition of dust removal article, and avoided needing to the distance of multiple dust sticking roller movement in turn measures to make dust sticking roller adjustment speed faster.

The application discloses a train operation state-based energy management method for a mass transit energy storage device, which comprises the following steps: S1, setting an initial charging threshold and an initial discharging threshold, and ensuring that the initial charging threshold is always higher than the initial discharging threshold; S2, acquiring a train power sum and judging a train operation state according to the train power sum; and S3, formulating an energy storage energy management strategy according to the train operation state. The train operation state-based energy management method for the mass transit energy storage device can improve the charging and discharging thresholds when the train is being pulled, so that the energy storage system can be timely discharged, and the problems of the energy storage system being unable to be timely discharged and the energy storage system being unbalancedly utilized and having poor energy-saving effects are effectively avoided.

This application discloses a data source management method, apparatus, device, and storage medium, relating to the field of data processing technology. The data source management method includes: monitoring the data source interface connected to at least one data source in a data source management platform, and storing the obtained monitoring data in the data source interface storage area; determining all indicator data within the target data source corresponding to the query instruction based on the monitoring data, and storing the indicator data in an abnormal indicator storage area, the indicator data including successful query data and report detail data; determining the indicator result based on the query instruction and the indicator data in the abnormal indicator storage area, and storing the indicator result in the data source indicator result storage area; detecting whether the indicator result in the data source indicator result storage area matches the abnormal rules in the abnormal rule storage area; if a matching abnormal rule exists, determining that there is an abnormal event in the target data source, and outputting an abnormal alarm message. This application achieves effective supervision of data sources.

The application relates to an automatic drift planning and control method and device for emergency obstacle avoidance. The method describes the longitudinal, lateral and yaw responses of a vehicle under high side slip conditions by establishing a nonlinear vehicle dynamics model. Next, under the obstacle and safety constraint conditions, the MPPI algorithm is used to randomly sample the control sequence and generate an optimal candidate obstacle avoidance trajectory. Then, the optimal candidate trajectory is segmented and circularly arc-fitted, and a discrete reference drift sequence is constructed by combining and solving the drift equilibrium point. In order to reduce the equilibrium point solving time, the network output based on contrast learning is introduced as the numerical solving initial value. Finally, the vehicle model is locally linearized around each reference drift point, and the MPC controller is used to track the reference trajectory and the reference drift state, so that a complete planning-solution-control closed loop is formed, and the active safety capability and the maneuvering boundary of the automatic driving system under extreme conditions are improved.