204results about How to "Easy to Feedback" patented technology

The invention discloses a mirror image type industry linkage engine system and method based on a knowledge graph, and relates to the technical field of industry linkage engines, and the system comprises a data collection module which collects multi-industry data in multiple modes, and the cleaning accuracy is 90% or above; the knowledge graph construction module is combined from bottom to top and from top to bottom, and is used for distributed storage and block chain evidence storage; the industry mirror image model generation module is used for generating a model through machine learning, and the association accuracy is 95% or above; the linkage analysis and decision module is used for finding a linkage strategy through an intelligent algorithm; and the user interaction module has a graphical interface, is fast in response, can feed back optimization, and supports multi-language and VR / AR display. The system is accurate and efficient in data processing, integrates multi-source data to construct the knowledge graph, is deep and comprehensive in industry analysis, simulates industry relations to assist decision making, is intelligent and reliable in decision making support, provides strategies and evaluation, is convenient and friendly in user experience, improves interactivity through multiple technologies, promotes accurate decision making of enterprises, and promotes collaborative development and innovation of the industry.

The invention relates to the technical field of behavior recognition, in particular to a machine learning-based surgical personnel video behavior recognition method and system. The method comprises the following steps: acquiring a video frame sequence and a point cloud frame sequence from a hand washing area of an operator through an RGB camera and laser ranging equipment to obtain the video frame sequence and the point cloud frame sequence; performing hand point cloud segmentation on the point cloud frame sequence to obtain hand point cloud data; performing action original data generation according to the video frame sequence and the hand point cloud data to obtain action original data; and extracting position and attitude information of hand key points from the original motion data to obtain video key point feature data. Visual information is captured through the RGB camera, three-dimensional depth information is obtained through the laser ranging device, fine analysis and evaluation are carried out on actions in combination with the deep learning network, and finally higher recognition precision, robustness and automation level are achieved.

The invention relates to the technical field of artificial intelligence, in particular to an intelligent operation and maintenance system of a cluster system based on reinforcement learning. The system comprises a cluster modeling module, a multi-dimensional situation awareness module, an intelligent decision planning module and an efficiency evaluation module, and realizes autonomous operation and maintenance and dynamic management of the cluster system in a complex environment in combination with various reinforcement learning algorithms. According to the system, reinforcement learning algorithms such as a deep Q network (DQN), Actor-Critic Monte Carlo Tree Search (AC-MCTS) and distributed near-end strategy optimization (DPPO) are introduced to optimize a maintenance time sequence and a strategy, so that the fault rate and the operation and maintenance cost of the system are reduced; the system function is quickly recovered, and the performance loss caused by sudden failure of the system is reduced; and task collaboration and system stability are ensured.

The invention discloses a skin-like multi-mode tactile sensor and a preparation method thereof, and belongs to the technical field of sensors, the sensor comprises an isolation layer lower substrate, electrodes, a sensing layer and a protection layer upper substrate from bottom to top; the lower substrate adopts a hydrogenated styrene-butadiene block copolymer (SEBS), and in the preparation process of the SEBS substrate, isopropanol can be taken away by overnight volatilization of a toluene solution, so that a porous substrate is formed, and the substrate has air permeability; the electrode uses a mixed solution of PEDOT: PSS PH1000 and DMSO, so that the conductivity of the electrode can be effectively improved; the porous structure of the sensing layer is formed by using cube sugar as a sacrifice template, and the resistance change of the sensing layer is caused by pressing deformation, so that different electric signals are formed, and the change of temperature and tiny pressure can be sensed.

The invention discloses a piano partner training device based on an AI technology, which comprises an AI intelligent processing system, the AI intelligent processing system comprises a sound recognition system, a fingering collection system and a dynamic collection system, the sound recognition system is electrically connected with a high-quality microphone mounted on a piano, and the high-quality microphone is electrically connected with the dynamic collection system. The fingering collection system is electrically connected with a plurality of groups of action collection sensors which are mounted on piano keys and respectively correspond to the keys, and the dynamic collection system is electrically connected with a high-resolution dynamic collection camera mounted on the piano; the AI intelligent processing system further comprises a personalized learning module, a diversified practice module, an interactive feedback and guidance module and a cloud updating and learning module. The invention relates to the technical field of musical instrument training, in particular to a piano partner training device based on the AI technology, which can provide powerful computing power and learning algorithms, provide personalized and real-time feedback and guidance for piano learners and further improve the training effect of the piano learners.

The invention relates to the technical field of data analysis, in particular to an experience degree analysis method for an offline experience scene, and the method comprises the steps: obtaining the stay duration and interaction times of a target; identifying a to-be-monitored area and a temporary monitoring area; abnormal interaction is recognized, and the grid step length is adjusted; obtaining an experience score of the interactive device; the grid step size and the acquisition interval are adjusted to improve the experience score. According to the method, the behavior change of the target can be more flexibly adapted by dynamically adjusting the grid step length and the acquisition interval, so that the accuracy and the real-time performance of data acquisition are improved, the fluctuation condition of target experience can be acquired in different time periods based on analysis of historical data, a powerful basis is provided for subsequent site optimization and equipment improvement, and the method is suitable for popularization and application. According to the method, the exhibition attraction can be increased, scientific decision support is provided for venue managers, the exhibition effect is continuously optimized and improved finally, and the problem that exhibition experience output is fuzzy due to insufficient interaction data analysis is effectively solved.

The invention relates to the technical field of vehicle renting, in particular to a vehicle operation management method and system for a vehicle renting platform. The method comprises the following steps: acquiring a vehicle use demand of a user, analyzing the vehicle use demand, and determining whether the user returns a vehicle or not according to a demand analysis result; if it is determined that the vehicle is returned, obtaining an initiating position of the vehicle using demand, determining a vehicle returning operation according to the initiating position, and sending the vehicle returning operation to the equipment of the user; and receiving and analyzing operation feedback of the user, determining whether vehicle returning is allowed or not according to a feedback analysis result, and after vehicle returning is allowed, obtaining a vehicle returning position and sending the vehicle returning position to equipment of a manager so as to perform vehicle scheduling. The method is advantaged in that vehicle scheduling is rapidly responded and planned, waiting time and necessity of manual intervention are reduced, scheduling efficiency is improved, the whole vehicle operation management process is more automatic and intelligent, the user can rapidly complete vehicle returning and using processes without waiting for manual processing, and user satisfaction is greatly improved.

The invention discloses a key structure and an electronic device. The key structure comprises a key cap, a sealing ring which is arranged around the peripheral side of the key cap, is fixedly connected with the key cap and has elasticity, a sensor which is fixed on the back surface of a pressing surface of the key cap, a metal connecting piece which is fixed on one side, far away from the key cap, of the sensor, and a piezoelectric single crystal assembly which is fixed on one side, far away from the sensor, of the metal connecting piece, the central axis of the sealing ring is perpendicular to the sensor, the sealing ring is used for being fixed to a shell of the electronic equipment when the key structure is embedded into the shell of the electronic equipment, and the piezoelectric single crystal assembly is used for being fixed to the inner side of the shell. The falling reliability of the key structure and the aesthetic feeling of the key structure after the key structure is installed on the shell of the electronic equipment can be improved, the key structure can be matched with various scenes to make various adaptive effects, meanwhile, more direct prompt and feedback beneficial to muscle memory are provided for a user, and in addition, the key structure has a waterproof function.

The invention discloses a complex equipment IETM system based on digital twinning. The complex equipment IETM system comprises the following steps that S1, multi-source heterogeneous data are collected and preprocessed; s2, constructing a multi-scale space-time coupled digital twin model to realize real-time modeling of equipment; s3, utilizing non-Euclidean space mapping to establish a dynamic evolution track of the equipment; s4, the information entropy is calculated and the model parameters are dynamically adjusted by monitoring the equipment state in real time; s5, generating a fault prediction and maintenance scheme, and optimizing the operation state of the equipment; s6, displaying an equipment state and a maintenance suggestion through an IETM system, and providing equipment management support; and S7, continuously optimizing the twin model by the system. According to the invention, the equipment maintenance precision is improved, and the use efficiency, the maintenance convenience and the information acquisition accuracy of the equipment are improved in real time.

The invention provides a multi-mode integrated circuit chip performance evaluation system and method, and the method comprises the steps: dynamically controlling the temperature, power supply voltage and clock frequency parameters in a performance evaluation box environment where an integrated circuit chip is located according to the working mode of the integrated circuit chip; the performance evaluation box is used for detecting environmental parameters of the integrated circuit chip, sending the detected environmental parameter data to a performance evaluation management platform, and testing the power consumption, the data transmission rate, the clock precision and the optical transmittance of the integrated circuit chip when the environmental parameters in the performance evaluation box are adjusted; processing and analyzing the output power consumption, the data transmission rate, the clock precision and the optical transmissivity data, generating an evaluation report, sending the evaluation report to the performance evaluation management platform, and displaying the evaluation report to a user by the performance evaluation management platform; the system corresponding to the method comprises an environment parameter adjusting module, a testing module, a processing and analyzing module and a display module, and the performance of the multi-mode integrated circuit chip can be comprehensively and accurately evaluated through the method and the system.

The invention discloses an intelligent arrhythmia recognition sphygmomanometer, and belongs to the technical field of medical equipment. Comprising a cuff type sphygmomanometer composed of a blood pressure measuring device and an electrode slice, and the cuff type sphygmomanometer is electrically connected with an intelligent recognition subsystem. The problem that existing equipment cannot give consideration to heart rhythm detection is solved, the electrode slice is additionally arranged to remind a patient whether to carry out an arrhythmia detection mode or not when the heart rate and pulse of the patient are abnormal, the electrode slice is used for obtaining the heart rhythm condition of the patient, and the heart rhythm condition is printed through the miniature printer so that the heart rhythm condition can be fed back to a doctor to assist in obtaining an accurate conclusion; analyzing the arrhythmia type of the patient by using the decision tree model so as to inform the patient of the real heart rhythm condition; when the patient is in arrhythmia, the blood pressure value of the patient is corrected by utilizing the neural network model, so that the blood pressure value of the patient is prevented from being influenced by the arrhythmia, the patient can know the real blood pressure condition of the patient, and the practicability of the sphygmomanometer is improved.

The invention relates to the technical field of wetland ecological environment management, and discloses an ecological environment intelligent patrol monitoring system and method based on machine vision. The system comprises a wetland ecological environment air characteristic information display module, a tourist target wetland ecological vacation position positioning module and a tourist target wetland ecological vacation position route planning and navigation module. Coordinate information of a tourist target wetland ecological monitoring point is accurately collected through a position sensor, and coordinate information of a tourist target wetland ecological vacation optimal position in a wetland ecological vacation scenic area is intelligently analyzed in combination with a geographic information system. According to the method, the coordinate information of the wetland ecological vacation position of the tourist target is scientifically and accurately positioned based on the environment air characteristic parameters of the tourist target, and the functional diversity of environment management of the wetland ecological vacation scenic spot is improved.

The invention discloses an emotion recognition method and system for a teaching assistant robot, and relates to the technical field of emotion recognition, and the method comprises the steps: constraining the frequency of data collection, and summarizing the obtained data to generate a multi-modal emotion data set; labeling the data in the multi-modal emotion data set, and preprocessing the labeled multi-modal emotion data; the multi-modal emotion data collected in real time is used as input, the trained emotion recognition classification model outputs a corresponding recognition result, and a corresponding response strategy is matched for the teaching assistant robot according to the recognition result; and after the teaching assisting robot makes a response, an improvement coefficient is constructed according to feedback data changes in the observation period, and if the improvement coefficient does not exceed an improvement threshold value, a response strategy is optimized and adjusted. Response can be made quickly, and the teaching quality is improved; the response strategy is predicted by constructing a teaching feedback prediction model, and the effectiveness of the response strategy can also be ensured.

The utility model relates to a stop valve for conveying high-pressure steam, which comprises a valve body, a main valve seat is arranged in the valve body, a main valve clack is arranged on the main valve seat, a fixing sleeve is arranged on the outer side of the main valve clack, the fixing sleeve is connected with the main valve seat, an auxiliary valve seat is arranged in the main valve clack, an auxiliary valve clack is arranged above the auxiliary valve seat, and the auxiliary valve seat is attached to the auxiliary valve clack. First springs are arranged on the auxiliary valve seat and the auxiliary valve clack, a first through hole is formed in the fixing sleeve, a second through hole is formed in the portion, on the inner side of the first through hole, of the main valve clack, the first through hole is communicated with the inlet end of the valve body, an inner cavity of the auxiliary valve seat is communicated with the outlet end of the valve body, and the first through hole is communicated with an inner cavity of the auxiliary valve seat through the second through hole. A valve cover is arranged on the valve body and the fixing sleeve, a valve rod is arranged on the valve cover and the auxiliary valve clack, and a valve clack gland is arranged on the main valve clack. And the valve clack is difficult to separate from the valve seat to achieve a valve opening state. The utility model has the advantages of convenient use and wide market prospect.

The utility model relates to the technical field of conical reamer detection, in particular to a conical reamer dynamic detection device which comprises a lifting seat and a base, a machine base is arranged on one side of the lifting seat, a driving motor and a reamer assembly are arranged on the lower side of the machine base, a detection table is arranged on the upper side of the base, and a sample is arranged on the upper side of the detection table. The detection table comprises a main body, a control valve and a hydraulic cylinder, a mounting groove is formed in the inner side of the hydraulic cylinder, a clamping block is arranged on the side wall of the mounting groove, the control valve is communicated with the hydraulic cylinder through an oil pipe, an oil pump is arranged on one side of the main body, and a pressure sensor is arranged between the clamping block and the sample; according to the utility model, the actual processing state of the conical reamer is visually and dynamically detected by detecting the stress condition of the sample during processing, so that the processing reliability and stability of the conical reamer are determined, research and development personnel can conveniently and quickly obtain the feedback of the actual use of the reamer, and the product inspection period is shortened.

The utility model discloses a gas valve wire harness switch which comprises a seat body, a first conducting strip and a second conducting strip are arranged in the seat body, a push rod used for abutting against the first conducting strip to enable the first conducting strip to be in contact with the second conducting strip to switch on a circuit is arranged on the seat body in a matched mode, and a limiting buckle used for being matched with a gas valve knob is formed at the free end of the push rod. A connecting table is formed at the position, corresponding to the limiting buckle, of the base body, a penetrating opening is formed in the connecting table, a rotating body is rotationally arranged on the connecting table, a matching groove is formed in the rotating body, a circuit board and a contact pin are arranged between the rotating body and the base body, and a plurality of resistors are connected to the circuit board in series in the circumferential direction. The contact pins abut against a circuit track of the circuit board, a control chip is arranged in the seat body, and the contact pins and the circuit board are respectively connected with the control chip. The structure is simple, the gas supply gear numerical value is effectively fed back, the structural use effect is improved, and the use experience of a user is improved.

The invention discloses a driving test simulation control interaction method and related equipment. The method comprises the steps that under the condition that driving test simulation is carried out in a closed VR visual environment, the position and posture of the hand of a user are captured in real time, and the user is located in a simulator cabin; mapping the acquired position and posture of the hand to a virtual environment of a VR visual environment, a virtual operation part in the virtual environment being consistent with a physical part for realizing the same function in the simulator cabin in position and proportion; and obtaining the operation of a user on the physical component and / or the virtual operation component so as to perform driving test simulation control in the simulator cabin. The problem that in driving test simulator training, although a VR simulator can really provide higher simulation reality and immersion, students cannot observe the real world when wearing VR glasses can be solved.

The utility model relates to a kind of low-temperature rectifying device of synthetic ammonia release gas, including first nitrogen gas delivery main pipe, first nitrogen gas delivery main pipe is provided with first desorption gas delivery pipe, refrigeration gas delivery pipe, nitrogen compressor unit, turbine expander, first machine after heat exchanger, second machine after heat exchanger, first nitrogen gas delivery branch pipe and second nitrogen gas delivery branch pipe, turbine expander and the inlet end of refrigeration gas delivery pipe are communicated, and first nitrogen gas delivery branch pipe, second nitrogen gas delivery branch pipe and refrigeration gas delivery pipe are provided with main heat exchanger, and main heat exchanger is provided with first release gas delivery pipe, and first release gas delivery pipe is communicated with molecular sieve adsorption tank, and first desorption gas delivery pipe and first machine after heat exchanger are communicated, and first machine after heat exchanger is provided with second desorption gas delivery pipe, and second desorption gas delivery pipe is provided with electric heater.Energy consumption of electric heater can be reduced.The utility model is convenient to use, with extensive market prospect.

The utility model discloses an intelligent cleaning robot with a flexible anti-collision device, which comprises an intelligent cleaning robot main body, and a support framework is sleeved on the outer wall of the intelligent cleaning robot main body. When the flexible anti-collision intelligent cleaning robot is used, the outer wall of the intelligent cleaning robot body is sleeved with the supporting framework, and the elastic buffering effect of the anti-collision annular air bag pieces which are arranged at the top and the bottom of the supporting framework and are in the protruding state is utilized, so that the intelligent cleaning robot body can achieve good flexible anti-collision protection on dynamic obstacles; according to the intelligent cleaning robot, collision injury to people or animals caused by the intelligent cleaning robot can be avoided, an annular rubber strip is embedded in the outer side wall of an anti-collision annular air bag piece, an annular piezoresistor is installed in the annular rubber strip, when collision occurs, the anti-collision annular air bag piece is pressed in a certain direction, the resistance value of a corresponding area is changed, and the collision damage to the human body or animals is avoided. And the collision direction is positioned and the collision strength is determined by calculating and analyzing the current difference through the controller.

The utility model relates to an abrasive cloth winding device which comprises a supporting plate, two parallel carrier roller frames are arranged on the supporting plate, carrier rollers are arranged on the two carrier roller frames, universal wheels are arranged at the bottom of the supporting plate, and a positioning frame is arranged on the outer side of the supporting plate. The positioning frame comprises a first side plate, a second side plate arranged at one end of the first side plate, a third side plate arranged at the other end of the first side plate and bottom plates arranged at the bottom end of the first side plate, the bottom end of the second side plate and the bottom end of the third side plate, and a bubble type gradienter is arranged at the top of the first side plate. A plurality of balance adjusting devices are arranged on the outer side of the positioning frame, and each balance adjusting device comprises a limiting plate, a supporting foot base and an adjusting bolt. And the levelness of the wind-up roller is convenient to adjust and is easy to feed back. The utility model has the advantages of convenient use and wide market prospect.

This utility model provides a valve stem concealed ball valve, including a ball valve body. The ball valve body includes: a valve body with several equidistant mating sections arranged circumferentially at its tail end, each mating section having a threaded hole at its center, the axis of the threaded holes being parallel to the axis of the inner hole of the valve body; the mating sections can adjust the installation direction of the ball valve as needed to avoid positional interference; a ball, rotatably disposed in the inner hole of the valve body; a valve stem, rotatably connected to the valve body, one end of which is connected to the ball, and the other end of which protrudes from the valve body; and a valve cap, detachably connected to the valve body, which can cover the other end of the valve stem; the valve cap conceals the exposed part of the valve stem, protecting the ball valve from accidental opening and closing and preventing misoperation of the valve stem.

The utility model relates to a reaction kettle heating device which comprises a reaction kettle, the reaction kettle comprises a kettle body and a jacket, a heating coil is arranged in the jacket, the jacket is communicated with a heat conduction oil conveying pipe and a first heat conduction oil return pipe, and a first heat conduction oil storage tank is arranged on the heat conduction oil conveying pipe and the first heat conduction oil return pipe. A booster pump, a heat exchanger, an electric heater and a heat conduction oil filtering device are arranged on the heat conduction oil conveying pipe, a first high-pressure steam conveying pipe and a high-pressure steam output pipe are arranged on the heating coil, a first gas-liquid separation tank is arranged on the high-pressure steam output pipe and communicated with the heat exchanger, and a second gas-liquid separation tank is communicated with the heat exchanger. Silk screen coalescers are respectively arranged in the first gas-liquid separation tank and the second gas-liquid separation tank. The heat-conducting oil can be heated by utilizing energy carried by water vapor, so that electric energy consumed by heating the heat-conducting oil is reduced, and the heat-conducting oil heating device has a wide market prospect.

The invention relates to a photovoltaic power generation energy storage device, which comprises a photovoltaic power generation device and a flow battery, the photovoltaic power generation device comprises a photovoltaic power generation panel, the flow battery comprises an anolyte storage tank, a catholyte storage tank and a galvanic pile, the anolyte storage tank and the galvanic pile as well as the catholyte storage tank and the galvanic pile are respectively provided with a first electrolyte conveying header pipe, the first electrolyte conveying header pipe is provided with a first conveying pump and a first heat exchanger, the photovoltaic power generation device is provided with a ventilation heat exchange channel, the ventilation heat exchange channel is provided with a ventilation header pipe, the first heat exchanger and the ventilation header pipe are provided with first gas conveying branch pipes, the ventilation header pipe is provided with a fan and a second heat exchanger, and the second heat exchanger is provided with a water storage tank. The water storage tank is communicated with a second circulating water conveying header pipe, and the first heat exchanger and the second circulating water conveying header pipe are provided with first circulating water conveying branch pipes. And energy released by the photovoltaic module is recovered to maintain the working temperature of the all-vanadium redox flow battery. The device is convenient to use and has a wide market prospect.

The invention discloses a remote pulse rate measurement system based on video images, and relates to the field of image communication technology. The remote pulse rate measurement system based on video images includes a video acquisition module, an image stabilization processing module, a motion correction algorithm module, and a real-time feedback and correction module. The acquisition module is used to acquire original image contrast, original sharpness, and original noise level parameters, capture continuous high-resolution video frames, and record the number of original video frames; the stabilized image processing module is used to analyze high-resolution video frames through a convolutional neural network model to predict pixel-level motion vectors, obtain predicted motion vectors, and obtain motion evaluation image stabilization evaluation values ​​through comprehensive analysis. Then, corresponding optimization measures are taken to solve the problem that motion artifacts caused by the head movement of the detected object or the movement of the camera affect the accuracy of pulse rate measurement.

The present invention discloses a COPD big data management platform and a construction method thereof, and belongs to the field of chronic disease health management. The present invention constructs a Chinese and Western medicine standard medical health database and a Chinese and Western medicine characteristic prevention and treatment technology database by effectively integrating multi-source data, realizes data standardization, eliminates data redundancy, and improves data quality. The Chinese and Western medicine standard medical health database, the Chinese and Western medicine characteristic prevention and treatment technology database, and a dedicated medical system interface are integrated to establish a COPD big data center, laying a foundation for subsequent data analysis, mining, and application, making the health and medical data of COPD patients more reliable and easy to analyze, thereby providing more valuable support for Chinese and Western medicine clinical decision-making and health management, and medical workers can also obtain the required information faster and make more accurate diagnosis and treatment decisions. In addition, the present invention also establishes an auxiliary engine that can help medical staff and patients better obtain information and feedback.

The invention provides a red-blue confrontation-based large model agent autonomous iterative optimization method and system, and the method comprises the steps: building a customer agent as a blue party based on a large language model, obtaining user data from a plurality of channels, generating diversified customer portrait data, generating a dialogue test set containing diversified customer consultation test data, and carrying out the calculation of the dialogue test set. Taking the data as adversarial data for iterative optimization of the model; the method comprises the following steps: constructing a sales agent as a red party by using a preset first version prompt word, starting the red party and a blue party to carry out dialogue based on adversarial data, limiting a maximum dialogue round or taking a transaction conclusion as an exit condition, and carrying out quality inspection scoring and prompt word optimization direction prompting on the sales agent through a plurality of evaluation dimensions; inputting the first version cue word and the cue word optimization direction to a sales agent to obtain an optimized sales agent cue word; and repeating until the quality inspection score converges, and completing the iterative optimization process of the sales agent. According to the method, the sales conversion rate is remarkably improved, and the manual optimization cost is greatly reduced.

The invention discloses a security culture comprehensive display method, system and equipment based on a visualization technology and a medium thereof, and the method comprises the following steps: 1, obtaining a target task, collecting production field security culture data according to the target task, building a security culture data warehouse, and storing the security culture data warehouse; security culture data preprocessing is completed based on a big data analysis and mining technology; and 2, constructing a power enterprise production site 3D simulation scene according to the safety culture data warehouse in combination with a 3D simulation technology, and importing the scene into a safety culture visualization platform. By means of the visualization technology, safety risks, hidden dangers and accident site conditions in the power production process can be visually displayed, staff can feel the severity and urgency of safety problems personally on the scene, and therefore the safety awareness and the precaution ability are improved. An interactive training environment can be constructed through a visualization technology, the learning interest and enthusiasm of employees are stimulated, and the participation degree and the feedback effect of the employees are improved.

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.

This utility model discloses a vehicle combination switch, relating to the field of vehicle switch technology. It includes a fluorescent material on the upper surface of the switch for nighttime visibility of the switch's surface icons. A mounting slot is provided inside the mounting base, and a press feedback component is installed inside the mounting slot. The press feedback component is located below the bottom of the switch. Pressing the switch triggers the press feedback component to obtain press feedback. In this utility model, pressing the switch causes the contacts to make contact, activating the circuit. The control module receives the signal and triggers the indicator light to remain illuminated. Pressing the switch again causes the contacts to make contact again, generating a signal. After recognizing the secondary trigger, the control module cuts off the power supply circuit to the indicator light, turning it off. The fluorescent material allows the driver to observe the white switch icons at night. For example, when the indicator light is on, the indicator light illuminates green, creating a color difference with other icons, thus providing better feedback on the icon's on / off status.

The utility model relates to the technical field of thermal insulation material performance testing equipment, and discloses a thermal insulation material performance detecting device which comprises a box body, a box door is rotatably connected to the middle position of the front end of the box body, and a control panel is fixedly arranged on one side of the front end of the box door. A pair of first electric sliding rails are symmetrically and fixedly arranged on the side walls of the two sides of the interior of the box body, and first electric sliding blocks are arranged at the upper ends of the multiple pairs of first electric sliding rails in an electric limiting and sliding mode. According to the thermal insulation testing device, when the thermal insulation testing device is actually used, a high-precision temperature measuring structure is arranged, so that the thermal insulation testing device can conveniently adjust the temperature measuring position for a thermal insulation test of a testing material, and the accuracy of a testing result is ensured; and the device can carry out adaptive adjustment clamping on materials of different models and sizes, and the clamping adaptability of the device is improved.