13results about How to "Avoid runnability" patented technology

This invention discloses a centrifugal pump control method and medium. When a centrifugal pump is used to transport fluid, the transport pipeline includes several centrifugal pumps. The method includes: a dynamic extraction step: extracting feature parameters based on the transport pipeline information and information of each centrifugal pump; and an optimized control step: obtaining the corresponding feature parameters within a control period, and controlling the transport flow rate of each centrifugal pump on the transport pipeline according to the feature parameters, thereby achieving centrifugal pump flow control through the corresponding transport flow rate values ​​of each centrifugal pump. This invention, by obtaining feature parameters from the transport pipeline and information of each centrifugal pump on the pipeline, and controlling the flow rate of each centrifugal pump based on these feature parameters, avoids overload or underload of the centrifugal pumps, ensures that the transport flow rate of the transport pipeline matches the actual production conditions and the operating status of the centrifugal pumps, and improves the operating efficiency of the transport pipeline.

This application provides a scene graph-based light recipe compilation method, bridge compiler, medium, and system. The method includes: acquiring user scene requirements and converting them into a directional, loop-free scene graph; detecting conflicts in each scene segment based on the node-edge relationships and preset constraints of the scene graph and resolving these conflicts according to constraint priority; grouping all scene segments based on the node-edge relationships of the scene graph, the grouping including parallel groups that can be executed simultaneously and sequential groups that need to be executed in sequence; converting the operations of each parallel group and sequential group into corresponding microcode segments according to timing, wherein each microcode segment corresponds to a set of parallel or sequential operations; compressing and verifying the microcode segments before sending them to the lighting terminal for execution. This application resolves power and parameter conflicts in advance during compilation, avoiding operational anomalies and safety hazards.

This utility model discloses a protective device for a static var generator (SVR), comprising a lower base and an upper base fixed on top of it. A reinforcing seat is fixedly connected to the front top of the lower base, and a cabinet body is fixedly connected to the top of the upper base. A fixed rail is fixedly connected to the top edge of the lower base. The device also includes: an anti-collision mechanism: the anti-collision mechanism includes a rotating seat fixedly connected to the middle of the cabinet body, an anti-collision sleeve rotatably connected inside the rotating seat, a rotating rail on the front side of the rotating seat, and buckles fixedly connected to the left and right sides of the rotating rail, with a locking seat engaged on the outer side of each buckle; and a shielding mechanism: the shielding mechanism is fixedly connected to the top of the fixed rail. This utility model discloses a protective device for a SVR that simultaneously protects both the SVR and the vehicle in the event of a vehicle collision.

The utility model relates to mirror production technical field, and disclose an improved glass automatic sheet feeding machine, including mounting seat, the inner wall upper end of mounting seat is provided with conveyer belt, the inner wall lower end of mounting seat is provided with the extension frame device, the top left side of extension frame device is hinged swing installation has automatic sheet feeding device, the inner wall middle end of mounting seat is provided with rotating device, and the inner wall left side of rotating device is connected with the outer wall swing of automatic sheet feeding device, automatic sheet feeding device includes the mounting frame, the outer wall front end downside of mounting frame is swinged and installed with first connecting rod through the pivot, prevent the piece mechanism that sets up, prevent the piece mechanism can prevent the glass in adsorption and the glass that is not adsorbed in rear adhere together and lead to the glass breakage in the process of feeding occurs, greatly improved the conveying efficiency and the sheet quality of glass.

The application discloses a centrifugal pump off-design condition diagnosis method and system based on a vibration signal, and the method comprises the following steps: collecting vibration signals of a centrifugal pump under multiple flow conditions, and constructing a vibration sample sequence with a working condition label; reconstructing the vibration signal by using a variational mode decomposition (VMD); performing a continuous wavelet transform (CWT) on the reconstructed signal, and mapping a one-dimensional vibration signal into a two-dimensional time-frequency graph; constructing a Light-CBAM-CNN diagnosis model, and training the same; inputting the vibration signal collected in real time into the trained diagnosis model after pretreatment, VMD and CWT, outputting a working condition category and a diagnosis confidence, and outputting an "uncertain" label and triggering a retest mechanism or an alarm when the confidence is lower than a threshold value. The application can realize online diagnosis of high-energy consumption off-design conditions of the centrifugal pump only by relying on the shell vibration signal, and has the advantages of small modification workload, low deployment cost, high identification reliability and strong energy-saving scheduling guiding significance.

The utility model relates to heat exchanger unit technical field especially intelligent heat exchanger unit, its technical scheme includes: box, the finned tube bundle is fixedly installed in the box, the first installation groove is installed in the box one end opening and intercommunication, the air injection fan is fixedly installed through the mounting bracket at the first installation groove, the air injection fan installation place's box bottom is provided with the air inlet, the air injection fan is used for conveying gas to the finned tube bundle, the second installation groove is installed in the box other end opening and intercommunication, the air exhaust fan is embeddedly installed in the second installation groove, the air exhaust fan is used for discharging the gas in the box, control assembly is installed on the box, control assembly is used for controlling the output power of air injection fan and air exhaust fan. The utility model has the advantage that adjusts the fan power under the premise of guaranteeing the heat exchange efficiency, solves the problem that the existing heat exchanger unit fan is easy to overload and has the potential safety hazard.

The application provides a kind of intelligent adaptive low-loss rape harvester based on management and control model, including main controller and multiple adjusting systems connected with main controller;Wherein, rape plant density adaptive adjusting system adjusts cutting table cutting speed, conveying spiral rotating speed, whole machine operation advancing speed according to rape plant density in real time;Adaptive raking adjusting system adjusts guide vane width and straw divider gap according to straw thickness and feeding amount;Chain dynamic adjusting system adjusts the rotating speed of transmission sprocket in raking chain conveying unit according to cutting table vibration amplitude in real time;Rape plant height adaptive adjusting system adjusts the height of cutting table according to the height of rape plant and / or degree of stacking and lodging;Rape plant hardness adaptive adjusting system adjusts the cutting speed of cutting table according to straw hardness.The application can realize intelligent adaptive adjustment in all working conditions, adapt to different rape plant density, straw biological state of field environment, and improve the versatility and operation stability of agricultural machinery.

This application discloses a method, apparatus, storage medium, and electronic device for positioning testing of freight trains. The method includes: acquiring satellite positioning information, driver-input departure information, identification and message information of the first group of physical transponders, and track installation position information of the first group of physical transponders; verifying the validity of each piece of information to obtain the validity status corresponding to each piece of information; combining the validity statuses of each piece of information to form a validity status combination result; generating a test scenario set based on the validity status combination result, scenario dimension layering rules, operating condition probability weighting strategy, and anomaly coupling rules; adjusting the triggering timing and triggering intensity of the target test operating condition based on the test scenario set and the real-time operating status parameters of the freight train; collecting the operating response data of the onboard system and the interaction status data between the onboard system and the radio block center during the simulation of the target test operating condition; verifying the operating response data and the interaction status data; and generating test results.

This utility model discloses an automatic venting valve and a cavitation protection device for an unloading pump of a chemical liquid oil tanker. The cavitation protection device includes a buffer storage tank and an unloading pump. The buffer storage tank is equipped with a level gauge connected to a level transmitter, which is connected to the unloading pump. The buffer storage tank is connected to the tanker truck's quick-connect interface via the tanker truck's unloading pipeline, to the oil and gas recovery interface via a first gas phase pressure relief pipeline, and to the unloading pump via the unloading pump's inlet pipeline. The unloading pump's housing cavity is connected to the oil and gas recovery interface via a second gas phase pressure relief pipeline, and the unloading pump's output end is connected to the unloading outlet pipeline. Both the first and second gas phase pressure relief pipelines are equipped with a shut-off valve and a venting valve, with the venting valve located near the oil and gas recovery interface. This utility model can protect the tanker truck's unloading pump from cavitation, thereby improving its service life.

This invention discloses a method, equipment, and storage medium for feedforward control of air conditioning in a large terminal building. The method includes: acquiring architectural layout and electromechanical system drawings of the terminal building; dividing the large terminal building space into several virtual control areas; and establishing a mapping relationship database between each control area and the corresponding flight boarding gate, air conditioning unit, terminal air outlet, and sensor; reading the flight dynamic information flow from the mapping relationship database in real time and extracting key fields; dynamically calculating the pre-cooling start-up advance and dissipation delay based on the key fields, and defining four control stages for each flight's support cycle accordingly; issuing corresponding control commands to the frequency converter and water valve actuator based on the four control stages; and achieving digital transformation of airport facility operation and maintenance through joint control of each stage and in conjunction with the key fields of the flight, combining flight flow with energy flow, realizing on-demand energy supply, and improving the overall operation and management level of the airport.

This invention discloses an elevator control method based on duty cycle, comprising the following steps: the elevator initiates random operation according to a set number of runs and a duty cycle; after the elevator completes one running cycle, the actual duty cycle of the elevator is calculated and compared with a set value. If the actual duty cycle is not greater than the set value, the next running cycle is directly initiated; if the actual duty cycle is greater than the set value, the elevator's delay time is calculated and the elevator is controlled to standby for the specified delay time before the next running cycle is initiated. After completing the set number of running cycles according to the above steps, the random operation ends. This invention can adjust the duty cycle of the elevator during random operation, thereby improving the testing effect of the elevator and preventing abnormal wear and tear.

This invention discloses a method for building a multimodal fusion-based fault diagnosis model for power transformers, belonging to the field of fault diagnosis model technology. This method deploys multimodal sensors to synchronously acquire transformer vibration and oscillation wave signals. After preprocessing the signals using Empirical Mode Decomposition (EMD), it jointly models the time-domain, frequency-domain, and oscillation wave parameter features. The core of this invention lies in constructing a graph data model based on physical topology and introducing a cross-modal Transformer network for deep feature fusion to capture the complex correlations between different modes. Furthermore, this method utilizes a variational autoencoder (VAE) to achieve unsupervised diagnosis and data augmentation for unknown faults; by constructing a power transformer fault knowledge graph (KG) and using a TransE model for entity embedding, it achieves accurate fault severity assessment and lifespan prediction of power transformers.

A method, system, product, and medium for coordinated control of distributed power sources are disclosed. The method includes: real-time detection of the power output decline rate of photovoltaic power plants and wind turbines, current grid load data, power demand, and the remaining capacity and discharge power of energy storage batteries; under high-risk conditions, calculating the real-time load characteristics of each load and prioritizing all loads; isolating non-critical loads ranked in the priority order within a preset low percentage range from the main grid and issuing isolation notifications to their load sides; when insufficient power is detected, injecting electrical energy into the grid by controlling the power supply or discharge status of controllable loads; calculating the current power gap, and controlling the start-up of inactive generator units when the power gap exceeds a preset threshold. Implementing the technical solution provided in this application improves the dynamic response capability of the power grid under distributed power fluctuations and load surges.