22results about How to "Timely feedback" patented technology

The invention discloses a gas-liquid atomization rotational flow mixing reaction device which comprises a mounting bracket, the mixing reaction chamber is detachably mounted on the mounting bracket through a bolt; the communicating chamber is detachably mounted at the top of the mixing reaction chamber through a bolt; the gas-liquid separation chamber is detachably mounted at the top of the communicating chamber through a bolt; the atomizing nozzle is fixedly connected to the mixing reaction chamber; the driving unit and the indicating unit are installed on the pressure regulating unit, and one end of the gas feeding pipe is fixedly connected to the atomizing nozzle. By adopting a gas-liquid atomization and rotational flow self-stirring structure, the problems that traditional mechanical stirring is slow in mixing, poor in uniformity and unbalanced in local proportion are fundamentally solved, the phenomena of back mixing and short circuit are eliminated, the reaction is more sufficient, crystallization is more uniform, the yield is higher, meanwhile, a stirring mechanism is omitted, the device is simplified, energy consumption is reduced, parameters such as pH and temperature are fed back more timely, and the production efficiency is improved. And the control precision is greatly improved.

The invention provides a die head lip opening online measurement method, which comprises the following steps of: pre-acquiring propagation velocities of ultrasonic waves in melts at different temperatures through an experiment, and fitting a relation curve between the propagation velocity v2 of the ultrasonic waves in the melts and the temperature T; the temperature T of the melt flowing out of the lip is collected in real time; according to the relation curve, the propagation velocity v2 of the ultrasonic wave corresponding to the current temperature T in the melt is obtained; the ultrasonic transmitting probe is controlled to transmit ultrasonic waves, and the ultrasonic waves sequentially pass through the first wall, the melt and the second wall and are received by the receiving probe; measuring the total propagation time t of the ultrasonic waves transmitted from the ultrasonic transmitting probe to the receiving probe; and calculating the width h of the lip according to a formula. According to the invention, on-line, real-time and high-precision measurement of the opening degree of the lip can be realized.

The invention relates to a code error feedback method combining static analysis and dynamic analysis, and mainly solves the problems of insufficient error feedback and low efficiency in an Online Judge system: reconstructing codes of correct and error versions, including alignment and renaming of variables, and rearranging statements on the premise of not influencing semantics; static and dynamic multi-level alignment is carried out, in the static alignment, an editing script with the minimum cost is calculated through a heuristic editing distance algorithm, an alignment block and a difference list are obtained, in the dynamic alignment, compiling execution is carried out on source codes of two versions, test cases which do not pass operation are dynamically printed through gdb, and execution track information of the test cases is dynamically printed through gdb; error positioning is achieved, data flow backtracking analysis and scoring are carried out on error positions, and error feedback is generated. The method has the characteristics of high execution efficiency, high accuracy and easier understanding of generated feedback, automatic feedback of error codes can be realized, and the learning efficiency of students in programming tasks is improved.

The utility model relates to the technical field of cleanliness detection, in particular to a device for detecting cleanliness on line based on an ultraviolet fluorescence method. The device for online detection of the cleanliness based on the ultraviolet fluorescence method comprises a measurement module; the measurement module comprises a light path module and a calibration module; the calibration module comprises a stepping motor, a standard sample bracket and a position detection sensor; the stepping motor is connected with the standard sample bracket and drives the standard sample bracket to rotate, and the standard sample bracket comprises a plurality of cleanliness sample bracket units and channels arranged among the cleanliness sample bracket units; and the position detection sensor is arranged on the standard sample bracket. The light path module carries out detection by adopting an ultraviolet fluorescence method, has high sensitivity to common pollutants such as oil stains and organic impurities on the metal plate strip, can accurately detect trace pollutants, and improves the precision of cleanliness detection.

This utility model discloses a single-stage material pusher device, belonging to the technical field of feeding equipment. The single-stage material pusher device includes a pusher plate and two mounting bases. A linear guide rail is fixedly mounted on the top of the pusher plate, and a dual-output shaft reducer is mounted on the bottom of each mounting base. A swing arm is mounted on the longitudinal output shaft of the dual-output shaft reducer. A connecting piece is provided between one end of the swing arm and the top of the linear guide rail. By utilizing the coordinated operation of the linear guide rail, dual-output shaft reducer, swing arm, connecting piece, and guiding mechanism, it achieves precise and efficient pushing action, solving the problems of poor stability and easy material deviation and drop in traditional pusher devices. It ensures the stability of the material during the pushing process and can flexibly adjust the pushing force and speed according to materials of different specifications and weights to meet diverse production needs, overcoming the lack of flexibility of traditional pusher devices when facing different materials.

This invention discloses an automatic road surface smoothness detection system for road construction, belonging to the field of road construction quality inspection technology. The system includes: an image acquisition unit for real-time acquisition of original road surface images during asphalt paving and synchronous acquisition of paver vibration characteristic information corresponding to the original road surface images; a data processing module, communicatively connected to the image acquisition unit, for receiving the original road surface images and the paver vibration characteristic information, achieving smoothness detection through vibration adaptive image analysis technology, and outputting structured detection results; and a data output unit, communicatively connected to the data processing module, for receiving the structured detection results and realizing real-time display and anomaly warning during the asphalt paving process. It has the effects of adapting to the vibration state of asphalt paving construction, shielding against dust and high-temperature reflective interference, and improving the accuracy and real-time performance of smoothness detection.

An electromagnetic induction based igniter detection circuit includes an induction coil, a bidirectional clamping circuit, an amplification unit and an indication unit. One end of the induction coil is grounded, and the other end serves as a signal output end; the bidirectional clamping circuit is composed of two diodes connected in parallel in opposite directions and is connected between the signal output end and the ground, for limiting and protecting the induction signal; the amplification unit is composed of two-stage triodes connected in series, the base of triode Q1 receives the induction signal, the emitter of triode Q1 is connected to the base of triode Q2, the emitter of triode Q2 is grounded, and the collectors of the two triodes are commonly connected to the cathode of a light-emitting diode; the anode of the light-emitting diode is connected to the positive pole of a power supply through a current-limiting resistor, constituting the indication unit. The induction coil induces the change of the external magnetic field to generate an induction voltage, which drives the light-emitting diode to light up after clamping protection and amplification processing, realizing visual indication of the electromagnetic energy state of the ignition system, and having the characteristics of simple structure, sensitive response and strong stability.

This application provides a method for evaluating the effectiveness of physical education teaching based on Bayesian networks, including: calculating the interaction density and intensity distribution of classroom activities per unit time for behavioral feature sequences, extracting key feature indicators, and performing data dimensionality reduction; aligning the dimensionality-reduced classroom behavioral features with standardized physical fitness scores to construct the initial structure of the Bayesian network and determine the relationships between nodes; if there is a lag effect, introducing a time delay factor to adjust the conditional probability distribution in the Bayesian network and capturing the cumulative impact of classroom behavior on physical fitness test results; considering individual differences, calculating individual response coefficients based on students' historical physical fitness test results and classroom behavior data to correct the conditional probability distribution in the Bayesian network; and based on the constructed Bayesian network, inputting real-time classroom behavioral feature data to calculate the probability quantification value of teaching effectiveness and generate teaching effectiveness evaluation results.

The invention discloses a cable laying device and method for electric power engineering, and relates to the technical field of electric power engineering.The cable laying device comprises a frame body and universal wheels, the bottom of the frame body is fixedly connected with the fixed ends of the universal wheels, a supporting frame is fixedly connected to the top of the frame body, and a winding wheel is arranged at the top of the supporting frame; a distribution box is arranged on the side face of the supporting frame, the top of the frame body is fixedly connected with an adjustable front end lower pressing roller, the top of the frame body is fixedly connected with a guide plate, the side face of the guide plate penetrates through and is rotationally connected with a rotating shaft, and a self-adaptive cable conveying device is arranged at the top of the frame body. A handheld guide device is arranged at the top of the frame body, and a pressure loss warning device is arranged at the top of the frame body. Through the arrangement of the self-adaptive cable conveying device, the self-adaptive cable conveying device can automatically adjust the conveying pressure and tension according to cables of different specifications, and the flexibility and adaptability of cable laying are improved.

The invention discloses a static training auxiliary device and a method thereof. The method comprises the following steps: acquiring a training action image of a training object collected by a camera; extracting a training action reference image from the background database; extracting human body posture features of the training action image and the training action reference image to obtain a training action human body posture depth feature map and a training reference human body posture depth feature map; calculating a training action semantic difference feature map between the training action human body posture depth feature map and the training reference human body posture depth feature map; and based on the training action semantic difference feature map, determining whether the training action of the training object is standard or not. Therefore, whether the training action of the training object is standard or not can be intelligently judged through the semantic difference information of the training action, so that timely feedback is provided for the training object, old people are helped to correctly understand and master the standing action, and potential risks caused by incorrect postures or actions are reduced.

The invention relates to the technical field of construction progress management, in particular to a BIM-based hydropower engineering construction progress management method and system, and the method comprises the steps: building a mapping relation between a construction progress plan and a BIM model, binding a task in the construction progress plan with a component in the BIM model through coding, and endowing the task with a time attribute; converting the BIM model into an IFC format, and exporting the construction progress plan data; performing integration and semantic matching on the model in the IFC format and the exported construction progress plan data to generate a 4D construction model with time attributes; loading a 4D construction model in a visual environment, providing a time axis control function, and performing color distinguishing display on corresponding components based on an execution state of a task; and a data interaction channel with the mobile terminal is established for pushing task information and visual data to the site and receiving construction data fed back by the site, so that the collaborative management efficiency of the construction progress is effectively improved.

The application provides an intelligent video analysis method based on large model scheduling, which comprises the following steps: video data acquisition and preprocessing, video content feature extraction and analysis, large model dynamic scheduling and task allocation, video analysis based on the large model and result generation, result fusion and post-processing, online incremental learning and model updating, and the like. The method can efficiently and automatically analyze, has the advantages of quantifying behavior reliability, flexible adaptation to scenes, and support for complex decisions. Meanwhile, multi-dimensional information fusion improves the accuracy of behavior description and the practical application value of the analysis method.

The application belongs to the technical field of mechanical property test, and discloses a Charpy impact test sample processing method, which can obtain the impact test sample meeting the test standard by breaking the fracture groove on the second sample blank on the spot before the impact test, cancels the transfer and witness steps of the second transfer stamp, realizes the simplification of the witness process of the impact test sample processing, can effectively shorten the sample processing period, thereby guaranteeing the welding process evaluation progress and the timely feedback of the detection result of the production welding test plate, and further improving the production efficiency.

The utility model relates to the technical field of monitoring, and particularly provides an anti-interference temperature measuring device for a blast furnace body, which is characterized in that an electrolytic capacitor, a surge protection device and other components are connected in parallel, electrostatic interference is released by means of the alternating current function of the electrolytic capacitor, and the surge protection device has the characteristics of high voltage and low impedance and low voltage and high impedance. Therefore, electronic devices in the whole temperature measurement system are protected from interference, temperature measurement signals are guaranteed not to be affected by interference, temperature measurement data are collected by the thermocouple temperature signal collector, converted by the data switch and then transmitted to the monitoring display industrial personal computer, and the monitoring display industrial personal computer is used for displaying the temperature measurement data. The real-time temperature of each sensor on site is monitored.

The present application relates to a kind of identification system based on safety device, express sorting system and identification method, identification system includes first identification part, first identification part, second identification part and second identification part, first identification part is located on shell, first identification part is arranged multiple groups along the running direction of safety device, and each group of first identification part includes multiple first identification part transversely arranged along the vertical direction of the running direction of safety device;Second identification part is arranged in the dial lever cylinder;Wherein, the position of safety device can be determined by identifying first identification part through first identification part;Second identification part can determine the state of dial lever by identifying second identification part, and its beneficial effect is that staff can accurately understand dial lever in which safety device enters failure state by identification system, so that staff can make timely feedback.

This invention relates to the field of online education technology, and more particularly to an AI-powered online education management platform. It addresses the problems of existing AI algorithms potentially failing to fully understand students' complex emotions and needs, or exhibiting biases when handling specific tasks. Furthermore, AI systems may lack the intuition and creativity of human teachers, hindering their ability to provide optimal guidance in certain teaching situations. The AI-powered online education management platform includes a data collection module for collecting student learning data, such as learning duration, interaction frequency, and homework completion, as well as a data analysis module. By collecting and analyzing student learning data, the platform can generate personalized learning paths and resource recommendations, better meeting students' individual needs, improving learning outcomes and interest. The platform's intelligent teaching support system helps teachers manage classrooms more effectively, assess student learning progress, and provide targeted teaching strategy suggestions.

The invention discloses a chroma relative concentration detection sensor and application thereof in phosphoric acid detection, and belongs to the technical field of phosphoric acid detection. The sensor is integrated with the chromaticity detection unit, the comparison detection unit and the concentration detection unit, so that the chromaticity, the comparison and the concentration of refined phosphoric acid can be synchronously and quickly detected; the sensor completes signal acquisition by combining a differential pulse voltammetry and an alternating-current impedance method, and eliminates detection deviation caused by a high-temperature working condition through a temperature compensation formula. The method is fast in response, high in precision and strong in stability, can effectively reduce the risk of manual operation, is suitable for production process control of workshop sections such as wet-process phosphoric acid extraction, decoloration and concentration, and fills the industry blank of multi-parameter synchronous detection.

This invention discloses a temperature sensor for a steam oven and its processing system, comprising an aluminum sensing element. A silicone sealant is fixedly connected to the left side of the aluminum sensing element, and an aluminum screw is threadedly connected to the right side of the aluminum sensing element. The aluminum screw has a T-shaped vertical cross-section and a through hole. A ceramic cap is housed inside the aluminum sensing element, and the ceramic cap is elastically connected to the adjacent side of the aluminum screw via a connecting spring. The left side of the ceramic cap extends into the silicone sealant, and a ceramic baffle is located inside the ceramic cap. Two resistance strips are fixedly connected to the right side of the ceramic baffle, and the right sides of the two resistance strips extend through the through hole to the outside and are fixedly connected to a connector. This temperature sensor senses temperature faster and has better heat dissipation, enabling faster reuse. Furthermore, the processing system allows for automatic and rapid processing of the aluminum screw on the sensor, thus meeting the quantity requirements during overall assembly.

The utility model belongs to the technical field of welding clamps, and particularly relates to a high-adaptability full-automatic welding clamp which comprises a fixing plate provided with a mounting frame, a first driving device is movably connected to one side of the mounting frame, and a supporting plate, a pressing block and a second driving device are arranged on the first driving device. The first driving device drives the supporting plate to drive the pressing block and the second driving device to rotate around one end of the mounting frame, a limiting device is arranged at the front end of the second driving device, the limiting device is driven by the second driving device to move up and down relative to the front end of the workpiece to be machined, and a supporting device fixedly connected with the mounting frame is arranged below the pressing block. The supporting device is matched with the pressing block and the limiting device to achieve limiting of the workpiece to be machined. Through the arrangement of the components, the clamp can be flexibly compatible with various parts of the same type, the cost is reduced through the modular design, meanwhile, rapid high-precision repeated positioning and rapid switching of the whole clamp are ensured, and the production efficiency is effectively improved.

The invention discloses a polishing dust collecting and discharging mechanism and a dust collecting device, one end of a dust discharging channel is connected with a motor support, the other end of the dust discharging channel is connected with a dust discharging funnel, and a spiral shaft and a spiral piece are arranged in the dust discharging channel. The gear motor is installed on the motor support and further connected with the reversing mechanism, and the gear motor drives the spiral shaft to rotate through the reversing mechanism. The spiral piece is fixed to the spiral shaft and drives dust to move through rotation. An ash discharge port is formed in the bottom of the ash discharge funnel, and dust passes through the ash discharge channel and then is discharged from the ash discharge port through the ash discharge funnel. The technical problems that an existing ash discharging mechanism and an existing dust collecting device are large in manual ash discharging labor amount, large in maintenance difficulty, low in efficiency and high in cleaning difficulty of an internal filter cylinder can be solved.

A tension adjusting device for a yarn feeder includes a rocker arm seat and a rocker arm mounted on the rocker arm seat. The end of the rocker arm is provided with a ceramic eye. Two rocker arms are mounted on the rocker arm seat, and a base is provided between the rocker arm and the ceramic eye to increase the connection strength between the rocker arm and the ceramic eye. Compared with the prior art, by providing two rocker arms on the rocker arm seat, the structural strength of the tension adjusting device is improved, preventing deformation of the rocker arm and ensuring that the rocker arm can promptly respond when the yarn tension changes, thereby driving the rocker arm seat to rotate and thus realizing the transmission of tension change signals. Simultaneously, the base between the rocker arm and the ceramic eye prevents deformation of the ceramic eye under the influence of the yarn, thus avoiding changes in yarn tension due to deformation of the ceramic eye.

This invention discloses an intelligent elevator and method for monitoring obstacles. The elevator is equipped with a controller, a processor, an image acquisition device, and an alarm device. The image acquisition device is used to acquire images of the elevator interior, and the alarm device is used to output alarm information. The controller monitors whether there are moving figures inside the elevator based on the images acquired by the image acquisition device. When a moving figure is detected, the controller controls the image acquisition device to acquire indoor images according to a preset frequency curve. The processor extracts obstacle features from the acquired images, confirms whether an obstacle is present in the acquired images, and feeds back to the controller to control the alarm device to output alarm information and to start or stop the elevator. The obstacle is an object connected to or near the side frame of the elevator door. This device uses real-time monitoring combined with an obstacle recognition model to predict obstacles, enabling timely feedback on elevator obstacles and avoiding situations such as anti-pinch sensor failure or over-processing.