944results about How to "Guaranteed efficiency" patented technology

The invention relates to the technical field of battery pack BMS, and discloses a battery pack BMS control power distribution method and system, and the method comprises the steps: collecting a voltage value, a current value, a temperature value and a state-of-charge value of each battery unit in a battery pack, and calculating the number of subsystems; performing spectral clustering operation on the battery units in the system state matrix to obtain a hypergraph Laplacian matrix; performing multilayer hypergraph convolution operation and ReLU activation function processing on the hypergraph Laplacian matrix to obtain an initial power feature matrix; calculating a target power characteristic matrix between the battery unit node and the corresponding power transmission path; establishing a dual-constraint optimization model to obtain a battery pack state quantity and a battery pack observed quantity; and carrying out iterative calculation until the difference value of the power distribution schemes of two adjacent iterations is smaller than a preset threshold value, and outputting a target power distribution scheme, thereby improving the accuracy and rationality of power distribution.

The invention discloses a vehicle-mounted message middleware processing method and system and an intelligent cabin thereof. The method comprises the steps that an abstract interface layer used for achieving data type abstraction and decoupling is defined, a communication interface is created based on a hardware abstract layer, and cross-device communication and cross-process communication are conducted through the abstract interface layer; based on the communication interface, a Fast DDS is adopted in a communication protocol transmission layer to serve as message middleware, an abstract interface layer is packaged in an application layer, communication nodes are created in a communication interface layer according to a communication protocol and a QoS strategy, and the communication nodes are used for managing objects of a communication mode in a cross-process and cross-device mode and in-process communication. According to the vehicle-mounted message middleware provided by the invention, a user interface is simplified, and two main communication modes are supported, so that a system can flexibly select a communication mode according to an application scene.

The invention relates to the technical field of solar cells, and provides a back contact cell, a cell assembly and a photovoltaic system, in the back contact cell, first bus grid lines and first connecting grid lines are continuous at a first edge serial connection area and a second edge serial connection area, the first connecting grid line is located between the two first bus grid lines, and the second connecting grid line is located between the two first bus grid lines. The first insulating layer is arranged on the portion, corresponding to the first edge serial connection area, of the first bus grid line, the second insulating layer is arranged on the portion, corresponding to the second edge serial connection area, of the first connecting grid line, and the first auxiliary connecting line is connected with at least two second grid lines located on the same side of the first bus grid line set. The second auxiliary connecting line is connected with the first bus grid line located on one side of the first connecting grid line and at least one first grid line adjacent to the first bus grid line. Therefore, through special design of the electrode structure, the cold solder joint influence caused by the insulating layer can be reduced or even eliminated, so that the electrical performance of the back contact battery is improved.

The invention provides an integrated containment pressure suppression, filtration and discharge system. The integrated containment pressure suppression, filtration and discharge system comprises a containment, a discharge valve, a discharge pipeline, a spray pipe, a first-stage pressure suppression water tank, a second-stage pressure suppression water tank, a baffle plate steam-water separator, an expansion tank, a rupture disk structure, a combined metal fiber filter layer, a radioactivity monitor, a first stop valve and a second stop valve. The two-stage pressure suppression water tank is arranged, the high removal efficiency of airborne radioactive substances is achieved through two-stage bubbling water washing, then the combined metal fiber filter is arranged by means of an existing cabin, and the requirements for rapid pressure reduction and radioactive substance removal of the containment under the LOCA accident working condition can be met; meanwhile, the problem that the containment filtering and discharging system of the existing nuclear power station occupies too many resources is solved, and the economical efficiency is high.

The invention relates to a lockage ship reservation scheduling optimization method. The method comprises the following steps: S1, obtaining ship information of a water transportation junction, attribute information of a ship lock and ship remote lockage declaration information; s2, taking the minimization of the ship lock waiting time and the ship reservation adjustment rate as optimization objectives, constructing a ship reservation scheduling double-objective optimization model, and establishing constraint conditions satisfied by lockage ship reservation scheduling; and S3, performing iterative solution on the ship reservation scheduling dual-objective optimization model based on a fast non-dominated sorting genetic algorithm to obtain an optimized lockage ship scheduling scheme. The technical problems that existing ship lock resources are not enough in utilization and the ship dam passing efficiency is not high are solved, the waterway traffic jam problem can be effectively relieved, the overall ship lock passing efficiency can be improved, the ship waiting time is shortened by optimizing the matching relation between the ship dam passing number and the ship lock service capacity, and the ship dam passing efficiency is improved. And the ship reservation adjustment rate is reduced, so that the ship lockage efficiency is improved.

The invention relates to the technical field of dust removal and desulfurization equipment, and discloses environment-friendly dust removal and desulfurization equipment which comprises an outer barrel, and a separation barrel is fixedly mounted at the bottom end of the interior of the outer barrel. According to the environment-friendly dust removal and desulfurization equipment, the separation barrel is arranged at the bottom end of the interior of the outer barrel, and the interior of the outer barrel is divided into an inner part and an outer part through the separation barrel; the interior is an impurity separation and collection area, the exterior is a clean circulating liquid flowing area, a stirring wheel at the bottom rotates to drive liquid and impurities to rotate together to generate centrifugal force, and under the action of the centrifugal force, the liquid and the impurities in the interior are driven to rotate together and are attached to the interior of a filtering ring net on the side face; in this way, impurities are separated out, liquid can flow to the outside of the separation barrel through the filtering ring net to be used for follow-up circular flow, the cleanliness of the recycled liquid can be improved, and the service life of the circulating pump can be prolonged.

The invention discloses a scene-based data accurate desensitization virtual power plant user privacy protection method. The method comprises the following steps of: firstly, setting different desensitization intensities according to the sensitivity of data through a hierarchical desensitization method, and selecting different desensitization technologies to perform encryption processing or access control according to the use and use scene requirements of the data, so as to realize privacy protection and accurate desensitization; secondly, accurately identifying sensitive information in the data by adopting a sensitive attribute identification module, and matching proper desensitization intensity and strategy for the sensitive information; then, data hierarchical storage and encrypted transmission are adopted, and it is ensured that data of different hierarchies are properly protected; finally, a reasonable access control strategy is set according to different scenes and data sensitivities, unauthorized access and abuse are avoided, and meanwhile the accurate desensitization efficiency is optimized. According to the method, an efficient and safe solution is provided for user privacy protection in the virtual power plant by combining hierarchical desensitization, sensitive attribute identification, Merkle tree storage, encryption transmission and attribute-based access control.

The invention relates to a polarization-independent spatial light obstacle avoidance system and method, and relates to the technical field of optical communication, and the polarization-independent spatial light obstacle avoidance system comprises a light source; the dual-polarization assembly comprises a light path element and a spatial light modulator, the light path element is used for dividing incident light output by the light source into two polarized light and converting the two polarized light into target polarized light capable of being modulated by the spatial light modulator, and the spatial light modulator is written into at least one complex amplitude of the Airy ring subjected to Fourier transformation so as to modulate the target polarized light; and the lens is used for generating a bottle-shaped light beam for obstacle avoidance based on the target polarized light modulated by the spatial light modulator. According to the invention, signals in any polarization state can be processed, and meanwhile, the bottle-shaped light beam is used for bypassing an obstacle at a specified position, so that the signal transmission efficiency and quality are ensured.

The invention discloses a vascular intervention operation robot control method and system. The method comprises the following steps: processing an angiography image; comprising the steps of image enhancement, image segmentation and image correction after segmentation, carrying out feature extraction on a processed image, obtaining a blood vessel state index value by combining blood vessel image features and other information of a patient, obtaining a guide wire control parameter according to the blood vessel state index value, and correcting the control parameter. And controlling the vascular interventional operation robot based on the corrected PID control parameter value. The control parameters of the guide wire are adjusted according to different blood vessel states, so that the advancing control of the guide wire is matched with the blood vessel states, and the entering safety and the advancing efficiency of the guide wire are ensured.

The invention relates to an unmanned aerial vehicle autonomous inspection method based on an AI technology, and the method comprises the following steps: S1, capturing a high-resolution image through an airborne camera in an inspection process, carrying out the spatial calibration of the image through IMU and LiDAR data, and guaranteeing the precise correspondence between the captured image data and a physical environment; s2, extracting texture features in the image by using a Gabor filter, acquiring edge features in the image by using a Canny edge detection algorithm, and detecting a linear structure by using Hough transform to assist in identifying a lead; s3, an improved DeepLab model is adopted to segment a lead area; s4, performing real-time tracking on the identified lead position by using a Kalman filter, and introducing a dynamic Bayesian network DBN to perform short-term change prediction on the lead position; and S5, generating a map of the current environment based on SLAM, and optimizing the inspection path of the unmanned aerial vehicle based on an RRT improved algorithm. Accurate wire inspection is achieved, it is ensured that operation is conducted along a safe route of a wire, efficiency is improved, and the risk of inspection is reduced.

The invention discloses a balloon catheter for releasing medicine in a human body cavity. The balloon catheter comprises an outer balloon and an inner balloon located in the outer balloon. The diameter of two ends of the outer balloon is larger than that of the middle; a plurality of rows of semi-through holes are formed in the outer balloon, each row of inner semi-through holes are formed in the longitudinal direction of the outer balloon, and a cutting mark is arranged between every two adjacent semi-through holes in each row; and the inner balloon is a three-stage expansion balloon. The double-layer balloon structure is adopted, in the process that the internal pressure of the inner balloon is gradually increased to push the outer balloon to be gradually expanded, two treatment means of medicine spraying and dilation are executed at the same time, and therefore the treatment effectiveness is improved; the use efficiency of the medicine can be ensured while the medicine can accurately act on the focus; compared with an existing treatment means, the application is wider in application range and non-invasive in treatment, foreign matter does not need to be implanted, an instrument does not need to enter a human body cavity for multiple times, and discomfort of a patient during treatment can be greatly reduced.

The invention provides grinding equipment for a tong head. The grinding equipment comprises a supporting assembly, a grinding assembly and a bearing assembly. The grinding assembly is connected with the supporting assembly and arranged on the upper portion of the bearing assembly. The grinding assembly is provided with a driving mechanism and a grinding wheel, the driving mechanism is configured to drive the grinding wheel to move and rotate, the driving mechanism is provided with a second through hole, the grinding wheel is provided with a grinding disc and a cavity, the second through hole communicates with the cavity, and the cavity is configured to contain a lubricant; the bearing assembly is provided with a plurality of fixing grooves, the fixing grooves are connected with the fixing bases correspondingly, the fixing bases are configured to be used for installing to-be-polished tong heads, and the bearing assembly bears the fixing bases to rotate. The supporting assembly is designed to have enough strength and stability, enough supporting force is provided for the grinding assembly, and therefore the grinding precision and efficiency are guaranteed. A driving mechanism of the polishing assembly is designed to be capable of adjusting the position and the rotating speed of a polishing wheel so as to meet the polishing requirements of tong heads of different materials and shapes.

The invention relates to an automatic PCB overturning structure, the automatic PCB overturning structure comprises a main body, an overturning frame, an overturning assembly and a conveying mechanism, the overturning frame is rotatably arranged on the main body through the overturning assembly, and the conveying mechanism is arranged on the main body; the PCB conveying device further comprises a stopping mechanism, the stopping mechanism comprises a stopping block and a driving assembly, the stopping block is arranged on the overturning frame in a sliding mode through the driving assembly, and the stopping block can stop PCBs located in the conveying mechanism. The method has the effect of ensuring the efficiency.

The invention discloses a decoupling control system and method for a supercritical carbon dioxide direct circulation nuclear power plant. A compressor inlet temperature constant control strategy and a compressor inlet pressure constant control strategy are adopted. A compressor inlet temperature control system adjusts the opening degree of a cooler cold side valve, and a compressor inlet pressure control system adjusts the working medium filling and discharging of a capacity box. In order to guarantee the power supply quality, a transmission shaft rotating speed constant control strategy is adopted, and transmission shaft auxiliary torque is adjusted through a transmission shaft rotating speed control system. In order to ensure the system efficiency, a reactor core outlet temperature constant control strategy is adopted, and a reactor core outlet temperature control system is used for adjusting the opening degree of a control valve; in order to achieve the reactor following operation target, a reactor core power matching demand power control strategy is adopted, the control rod speed is adjusted through a power control system, and based on the neuron PID decoupling control technology, the control target that each output parameter in the system is only influenced by a certain specific input parameter is achieved.

The invention discloses a character string data read optimization method based on a B + tree and a learning index. A learning index generated based on a machine learning (ML) model focuses on integer data of a fixed size, but is lack of consideration for character strings of variable lengths and is poor in performance in character string data. In order to solve the problem, the invention provides a character string slicing method which can convert a character string with a variable length into an integer with a fixed size for prediction and extract a common prefix from a character string key to reduce a model fitting error. According to the method, the characteristics of character string data are fully considered, complex multi-dimensional linear regression is simplified into one-dimensional linear regression, and the model calculation overhead is reduced. Besides, the invention provides a self-adaptive strategy to select a proper index to manage the calculation cost, the method for dynamically selecting the index nodes can utilize the advantages of the two index types to the maximum extent, and the calculation overhead is effectively reduced while the index efficiency is ensured.

The invention discloses a quality inspection system for a production process of an amomum tsao-ko mixture for guiding qi downward and dredging collaterals, and aims to realize comprehensive monitoring and control of the production process through multiple modules and improve the product quality and the production efficiency. The image data acquisition module is used for acquiring raw material and production process images and spectral analysis images. The timing module records and judges the production process time. The multi-source data acquisition module collects production environment data and raw material weight. The raw material proportion control module monitors a raw material proportion. And the data processing module is used for analyzing and processing images and environment data in the production process. And the user interaction module provides an interface for real-time quality detection results and user modification commands. Through comprehensive data acquisition and processing, intelligent proportion control, accurate time management and efficient environmental condition evaluation, the production quality and safety of the amomum tsao-ko mixture for guiding qi downward and dredging collaterals are remarkably improved, human errors are reduced, and the production efficiency is improved.

The utility model relates to the technical field of flood control, and discloses a water-saving irrigation flood control device which comprises a dam, a supporting frame is fixed to the top of the dam, a limiting frame is installed on the inner side wall of the dam, and a gate used for flood control or irrigation is seamlessly inserted into the inner wall of the limiting frame. A water level sensor and a mesh box are installed on one side of the dam, a water pump used for water saving and drainage is installed in the mesh box, and the water outlet end of the water pump communicates with a drainage pipe located on the other side of the gate. A motor output shaft drives a second gear to rotate, a gate drives a sliding rod to move upwards, water passes through the gate from one side of a collecting box, the farmland on one side of the gate is irrigated through the water, and when flood comes, the gate shields one side of a dam at the moment, and the flood is prevented from entering an irrigation canal on the other side of the gate; the influence of flood on the growth of crops is avoided, the gate is controlled by the motor to rise, water flows from the collecting box to the farmland for irrigation, and the gate can be quickly closed when the flood comes.

The invention discloses a coal underground gasification mining front and rear furnace common well continuous coordination propulsion method which comprises the following steps: S1, constructing a gas inlet well and a gas outlet well of a first furnace, and performing gas injection fracturing on a gasification to-be-mined area of the first furnace by using the gas outlet well; s2, coal seam combustion gasification operation is conducted on the gasification to-be-mined area of the first furnace, and synthesis gas is collected through a gas outlet well of the first furnace; meanwhile, a gas outlet well of the second furnace is used for conducting gas injection fracturing on the gasification to-be-mined area of the second furnace; s3, the combustion space area of the first furnace is made to be idle for cooling, meanwhile, the second furnace conducts combustion gasification operation, and the third furnace conducts gas injection fracturing operation; each furnace is subjected to a flow process of gas injection fracturing, combustion gasification, idle cooling and CO2 storage well closing treatment; and S4, completing each flow process in sequence. The upper furnace and the lower furnace carry out difference node follow-up according to the flow process by one flow node, the upper furnace and the lower furnace carry out well sharing, the number of drilled wells is reduced, geological damage is relieved, and the mining efficiency is improved.

The invention relates to the technical field of steel rail maintenance, in particular to a grinding device for grinding a steel rail at a high speed based on a CBN grinding wheel. Comprising a carrier used for running on a steel rail, a plurality of transverse moving assemblies are symmetrically installed on the two sides of the carrier and correspond to the steel rail, swing assemblies are installed on the transverse moving assemblies, longitudinal moving assemblies are installed on the swing assemblies, grinding assemblies are installed on the longitudinal moving assemblies, and CBN grinding wheels are detachably connected to the grinding assemblies. Through mutual cooperation of the transverse moving assembly and the swinging assembly, the grinding assembly and the CBN grinding wheel can be controlled to grind the steel rail at a set angle, so that the grinding precision and reliability of different surfaces of the steel rail are improved; the CBN grinding wheel can easily polish and maintain the steel rail, and the purity of scrap iron generated in the polishing process is higher. And therefore, frequent replacement of the grinding wheel is avoided, the steel rail grinding efficiency is improved, and meanwhile a large amount of flying dust and peculiar smell are avoided.

The invention discloses a winding forming device for manufacturing a flat wire motor stator of a new energy automobile, and relates to the technical field of stator processing equipment.The winding forming device for manufacturing the flat wire motor stator of the new energy automobile comprises a welding base, and a product conveying tray mechanism is arranged on one side of the welding base; a torsion dividing working unit is arranged on the side, close to the product conveying tray mechanism, of the welding base, a product transplanting structure is arranged on the side, close to the torsion dividing working unit, of the welding base, and a positioning wire protecting disc is arranged on the side, away from the welding base, of the torsion dividing working unit. According to the winding forming device for manufacturing the flat wire motor stator of the new energy automobile, all the parts work cooperatively, stator positioning is guaranteed through the product transplanting structure, and multi-layer electric wire split twisting is achieved through the split twisting working unit; the positioning wire protection disc protects the electric wire; the product conveying tray mechanism and the product transplanting mechanism achieve product conveying and transplanting correspondingly, and the manufacturing quality and efficiency are guaranteed jointly.

The invention relates to the technical field of lignite humic acid fertilizer preparation, in particular to a technology and equipment for producing lignite humic acid fertilizer through spraying granulation, the equipment comprises a bottom plate, a temperature rise detection mechanism is arranged above the bottom plate, the temperature rise detection mechanism comprises a cylinder, the cylinder is fixedly installed at the top of the bottom plate, and a temperature rise detection mechanism is arranged above the cylinder. A round rod is rotatably connected to the inner wall of the top of the cylinder, a plurality of stirring blades are rotatably connected to the outer side of the round rod at equal intervals, the section of each stirring blade is a parallelogram, and a plurality of first limiting blocks and second limiting blocks are fixedly connected to the outer side of the round rod at equal intervals; and the outer sides of the first limiting blocks can abut against the outer sides of the corresponding stirring blades. In the heating process, the heating mixing mechanism and the viscosity detection mechanism are integrated together, so that on one hand, the mixing effect is improved, on the other hand, the viscosity of slurry at the temperature can reach a set range after the slurry reaches the set temperature, and the production efficiency and quality are further ensured.

The invention discloses a multi-dimensional load spectrum acceleration compilation method for a vehicle frame based on a WLTC working condition, and the method comprises the following steps: setting rigid connection of the vehicle frame, and building a whole vehicle dynamics model; creating a WLTC event working condition, carrying out whole vehicle dynamics simulation, and extracting a load at a connection point; performing finite element analysis by using an inertial release method; carrying out fatigue life analysis on the frame, and extracting fatigue hot spot numbers; reconstructing an analysis process, and extracting stress time sequence data; carrying out pseudo damage analysis on the stress time spectrum to intercept an original load spectrum; carrying out smooth connection processing on the intercepted acceleration spectrum fragments; and performing power spectrum density analysis on the acceleration spectrum and the original spectrum, screening the acceleration spectrum according to a result, and finally obtaining the multi-dimensional load acceleration spectrum of the vehicle frame based on the WLTC working condition, thereby shortening the bench test time and reducing the development cost of the vehicle frame.

The invention provides a vision-based collaborative robot safety control method, which comprises the following control steps: S1, acquiring scene information of a collaborative robot, and acquiring a target coordinate and a pixel position based on the scene information; and S2, the specific position of an obstacle around the target and a surrounding three-dimensional scene are recorded based on a camera on the collaborative robot, and the three-dimensional scene is modeled and projected on an operation screen, so that the collaborative robot can be ensured to achieve the effects of rapid positioning, moving and grabbing through mutual cooperation of a plurality of modules; meanwhile, a potential field method is adopted for route planning, so that the collaborative robot can be prevented from colliding with an obstacle during planning movement, it is ensured that the whole collaborative robot has good environment sensing and coping capacity, and the overall efficiency in the man-machine collaborative operation process can be effectively guaranteed; and the robot can be applied to any man-machine cooperation production environment without excessive adjustment, so that the development of the field of cooperation robots is promoted.

The invention relates to a three-dimensional grid model processing method, computer equipment and a storage medium. The three-dimensional grid model processing method comprises the steps of obtaining a three-dimensional grid model corresponding to a medical image; wherein the three-dimensional grid model is composed of a plurality of grids, and the outer surface of the three-dimensional grid model is defined by geometric patches of the grids; acquiring the vertex curvature of each vertex in the grid, and adjusting the side length of the geometric patch of the grid according to the vertex curvature; wherein the larger the curvature of the vertex of the grid is, the larger the probability that the side length of the grid is shortened is, and / or the smaller the curvature of the vertex of the grid is, the larger the probability that the grid is merged is; and the vertex of the grid is translated by a preset distance along the direction pointed by the vertex normal vector, so that the self-crossing phenomenon after the expansion of the three-dimensional grid model is improved.

The invention provides an oil injection lubricating device for a transverse zipper clip chain link of a film stretching production line. A pin shaft sleeve matching surface of the chain clip chain link is communicated, an oil injection inlet is formed above the pin shaft sleeve matching surface, and a chain wheel is provided with an oil injection mechanism to inject oil to the oil injection inlet; the oil injection mechanism comprises lubricating oil runners, nozzles, an oil injection pipe, a hydraulic station, an oil injection electromagnetic valve and a lubricating grease conveying pipe, the chain wheel is divided into N fan-shaped oil injection areas along the circumference, and N corresponding lubricating oil runners are arranged in a chain wheel center extension shaft at the top of the chain wheel; the oil outlet end of the hydraulic station is connected to the oil injection electromagnetic valve and connected into the corresponding lubricating oil flow channels, and the nozzles are connected with the corresponding lubricating oil flow channels through oil injection pipes. And a nozzle working position proximity switch and an arc bulge which are matched with each other are arranged to output an oil injection signal to control oil injection. The oil injection lubricating device for the transverse zipper clip chain link of the film stretching production line can accurately and uniformly supply oil to lubricate the chain clip chain link, and has the advantages of being small in mechanical abrasion, stable in oil injection, accurate and energy-saving.

The invention provides a large 3D scene texture dynamic loading and unloading method, medium and system, and belongs to the technical field of 3D scene loading.The large 3D scene texture dynamic loading and unloading method, medium and system comprise the steps that three-dimensional scene parameters are collected, texture frequency parameters are decomposed to obtain basic and fluctuation components, a texture loading model is constructed, and a coefficient matrix is generated; packaging the texture file into a fixed-size block, building a double-layer resource optimization model based on a coefficient matrix, setting global and local optimization targets, and calculating a comprehensive contribution coefficient; an initial resource allocation scheme is obtained through an evolutionary algorithm, and a final scheduling scheme is obtained through dynamic programming; according to the texture blocks, loading the texture blocks, determining a recovery strategy in combination with life cycle, grouping association and state transition prediction, and executing resource recovery; the process comprises texture analysis, model construction, resource optimization, scheduling and recovery, and efficient management of three-dimensional scene textures is realized; the resource scheduling decision-making mechanism can be optimized, and the user experience is improved.

The utility model relates to the field of coal briquette crushing, in particular to a coal briquette crushing device for coal washing, which comprises a feeding pipe, a crushing roller and a filter screen, the feeding pipe is arranged at the upper end of a device shell, the crushing roller is arranged in the device shell, the filter screen is obliquely arranged below the crushing roller, and connecting blocks are arranged on two sides of the filter screen. A recycling box is arranged on the left side of the device shell, a rotating shaft is arranged below the filter screen, smashing blades are arranged at the upper end and the lower end of the rotating shaft, and a movable sleeve is fixedly connected with the inner wall of the device shell. The multi-stage crushing device has the beneficial effects that coal briquettes can be subjected to multi-stage crushing, so that the crushing effect of materials is improved, and the coal quality requirements for different purposes are met; coal briquettes with different sizes can be screened, coal products with different granularities are separated, and the utilization rate of resources is increased; and chippings and dust generated during crushing of coal briquettes can be recycled, so that environmental pollution is reduced, and the ecological environment is protected.

The invention discloses a civil engineering crack detecting and repairing device, and belongs to the technical field of road construction, the civil engineering crack detecting and repairing device comprises a moving device, a crack width detector mounted on the front side of the moving device, a hopper arranged on the moving device, and a mixed discharging assembly arranged at the bottom of the hopper, and the moving device can drive the hopper to move linearly; a baffle is arranged in the middle of the hopper and divides the hopper into an asphalt storage cavity and an aggregate storage cavity, a first discharging hole and a second discharging hole which are communicated with the asphalt storage cavity and the aggregate storage cavity are formed in the bottom of the hopper respectively, and control valves are installed in the first discharging hole and the second discharging hole respectively. The crack width detector is used for measuring the civil engineering surface crack width L. According to the device, civil engineering cracks can be repaired in time after being detected, and the measurement and maintenance efficiency of the civil engineering cracks can be improved.

The invention discloses a coal underground combustion gasification and carbon dioxide sequestration mining treatment method. The method comprises the steps that S1, gas injection fracturing is conducted, specifically, fracturing gas is introduced through a gas outlet well to enable a coal seam corresponding to a gasification to-be-mined area to form a fracturing seam net; s2, combustion gasification: taking the bottom end of a gas inlet shaft of the furnace to mountain gas and the bottom end as a mining direction, discharging gas from the furnace, and discharging synthesis gas; and S3, sealing and closing the well: injecting carbon dioxide serving as displacement gas into the space to be sealed through the gas inlet well, collecting mixed gas through the gas outlet well, and then injecting high-pressure CO2 gas into the space to be sealed for sealing treatment. According to gas injection fracturing of a single furnace, a horizontal fracturing gas injection channel is adopted for carrying out gas injection fracturing treatment on the gasification to-be-mined area of the furnace located above to form a fracturing crack net, the upper furnace well and the lower furnace well can be jointly subjected to difference node follow-up according to the flow process and the difference of one flow node, and the sealing difficulty of the well and a combustion space area is reduced; and the mining efficiency is improved.

The utility model discloses a cutting device for a photovoltaic module, which is applied to the technical field of photovoltaic production and is characterized in that a processing table, a mesh plate, a positioning component and a pressing component are arranged, a photovoltaic module power generation panel needing to be cut and processed is arranged at the mesh plate at the top of the processing table, and two sides of the power generation panel are positioned inside a C-shaped frame; a first electric push rod located on the outer side of a fixing block is synchronously started to push a C-shaped frame to clamp a power generation plate, and in the process, a buffer plate located in the C-shaped frame makes contact with the outer side of the power generation plate and then moves inwards along with the C-shaped frame; and springs and telescopic pipes of telescopic spring columns on the outer sides of the buffer plates are extruded by the power generation plates to retract, so that the telescopic spring columns are matched with the buffer plates to buffer the power generation plates, meanwhile, the first electric push rods stop pushing the C-shaped frames, and the power generation plates are buffered when the power generation plates are limited and clamped.