14results about How to "Reduce irregularities" patented technology

The invention discloses an emergency power supply quick access method based on scene recognition, which relates to the technical field of emergency power supplies, and comprises the following steps: in an emergency power supply system, firstly obtaining electrical input parameter information through a preset detection frequency; by introducing a load change evaluation mechanism based on machine learning, the system can identify load fluctuation in real time and dynamically adjust the detection frequency, and the response speed to the rapid change of the load is improved. Compared with a traditional detection method, the load state is intelligently evaluated and accurately divided, it is ensured that the power factor is adjusted in time when the load fluctuates violently, and power loss and waste are reduced. Correction is carried out according to the traditional frequency during stable load fluctuation, the frequency is dynamically adjusted during rapid fluctuation, the electric energy use is optimized, the electric power quality is improved, and harmonic distortion and overload risks are reduced.

The invention belongs to the technical field of industrial measurement, and particularly discloses a multi-frame three-dimensional point cloud splicing measurement method and device for high-temperature environment profile steel production and a medium. The method disclosed by the invention comprises the following steps: firstly, acquiring three-dimensional point cloud data of the profile steel surface through a line laser scanner; then, denoising and normalization preprocessing operation is carried out on the three-dimensional point cloud data; thirdly, splicing the three-dimensional point cloud data by using an improved ICP (Inductively Coupled Plasma) algorithm, and carrying out Laplace smoothing and normal vector homogenization processing on the spliced three-dimensional point cloud data; thirdly, performing profile steel edge fitting on the spliced data; and finally, calculating the geometric dimension of the profile steel after edge fitting. According to the invention, the precision of point cloud splicing and the stability of a measurement result are greatly improved. The method can be widely applied to dimension measurement of the profile steel in the high-temperature environment.

The invention relates to the technical field of machine vision, in particular to an image segmentation method and system for liquid crystal screen display. The method comprises the following steps: acquiring basic data of the liquid crystal screen; performing screen response characteristic analysis according to the basic data of the liquid crystal screen to obtain screen response characteristic data; performing multi-scale image acquisition according to the basic data of the liquid crystal screen to generate multi-scale image data; performing characteristic classification on the liquid crystal display according to the screen response characteristic data, and performing edge compensation analysis on the multi-scale image data to obtain edge characteristic compensation data; acquiring real-time data of the touch screen; and performing touch interference identification analysis on the real-time data of the touch screen according to the edge feature compensation data to generate touch interference mask data. By analyzing the screen response characteristics and performing edge compensation analysis, the phenomenon of edge blurring caused by liquid crystal response time limitation is reduced, and the accuracy of edge detection is improved.

The invention discloses a method for machine vision positioning of semi-finished electromagnetic stoves for palletizing, which belongs to the field of machine vision and automatic control technology, and is used to solve the problems of inaccurate visual positioning, low efficiency and difficulty in adapting to products of different specifications of semi-finished electromagnetic stoves during the palletizing process; by adjusting camera parameters and light source parameters, it is ensured that a clear and accurate image of the electromagnetic stove product is obtained, and the adjusted parameters and the corresponding electromagnetic stove specification type are stored in a parameter storage library; during visual positioning, the parameters are retrieved from the parameter storage library according to the electromagnetic stove specifications to adjust the camera and the light source, and then the captured electromagnetic stove image is sampled and tested, and if it is qualified, palletizing is started and accurately positioned through a visual positioning module; the positioning mode of the electromagnetic stove is judged, and the shooting positioning task is executed, and accurate and stable palletizing is achieved by calculating the center point position of the electromagnetic stove and correcting the palletizing position and angle.

This invention relates to the field of sand making technology, specifically to a sand making device with controllable stone powder content. The device includes a return conveyor tailstock, a sand making structure on the side of the tailstock, a primary filtration structure inside the tailstock, and a secondary filtration structure on the side of the tailstock away from the primary filtration structure. The stone powder is initially filtered by the up-and-down vibration of a moving block. When a specific size needs to be filtered out, the pneumatic bar valve moves, driving the inverted V-shaped guide plate to a parallel state. At this time, the first telescopic plate continues to move, changing the parallel guide plate into a regular V-shape, causing the stone powder on the guide plate to contact the interior of the return conveyor tailstock. This reduces the volume and irregularity of the splashed stone powder through collisions, and accelerates the guidance of the stone powder towards the pneumatic bar valve for filtration, thus improving production efficiency and the filtration effect of the pneumatic bar valve.

The invention relates to the technical field of sand making, in particular to stone powder content controllable sand making equipment which comprises a material returning belt machine tail frame, a sand making structure is arranged on the side face of the material returning belt machine tail frame, and a primary filtering structure is arranged in the material returning belt machine tail frame. A secondary filtering structure is arranged on the side, away from the primary filtering structure, of the material returning belt machine tail frame, stone powder is primarily filtered through up-down vibration of a moving block, when the stone powder needs to be filtered out of the specified size, a bar of a pneumatic bar valve moves and drives an inverted-V-shaped flow guide plate to be in a parallel state, and at the moment, a first telescopic plate continues to move; the guide plates in the parallel state can be changed into a V shape, so that stone powder on the guide plates makes contact with the interior of the material returning belt machine tail frame, on one hand, splashing stone powder collides with one another, the size and irregularity are reduced, on the other hand, the stone powder is guided to the direction of the pneumatic bar valve and filtered, and the production efficiency is improved advantageously; and meanwhile, the filtering effect of the pneumatic bar valve is improved.

A cloth cutting device is used for solving the problems that in the prior art, when a cloth cutting device in the prior art is used for cutting different pieces of cloth, the tension cannot be adjusted according to the materials of the different pieces of cloth, so that the different pieces of cloth are difficult to obtain enough tension, and when the tension is too small or no tension exists, the cloth cutting device cannot be used for cutting the different pieces of cloth. The cloth cutting device comprises a supporting frame, a plurality of horizontal conveying rollers are rotatably arranged on the supporting frame, a guide roller is rotatably arranged on the supporting frame, and the guide roller is rotatably arranged on the supporting frame. The supporting frame is provided with an adjusting assembly used for adjusting the tension of cloth between the guide roller and the conveying roller, a first motor is arranged on the side, away from the adjusting assembly, of the conveying roller in a sliding mode, a cutting knife is fixedly arranged at the output end of the first motor, and a clamping assembly used for clamping the cloth is arranged between the cutting knife and the conveying roller. A pulling assembly used for pulling and clamping cloth is arranged on the side, away from the clamping assembly, of the first motor.

The application provides a household environment ontology knowledge base automatic construction method and system, and relates to the technical field of artificial intelligence and knowledge engineering. The method comprises the following steps: constructing a household environment ontology knowledge base template, wherein the template contains classes, attributes and instances of the ontology; establishing communication with a target object, obtaining communication text of the target object, and extracting semantic information of the target object; obtaining an image of the target object, and extracting semantic information of the target object based on the image; comparing the extracted semantic information of the object with the existing classes and attributes in the household environment ontology knowledge base as instances of the ontology; judging whether new classes and attributes need to be established based on the similarity comparison result, updating the semantic information, and perfecting the household environment ontology knowledge base. The application can simplify the construction process of the household environment ontology knowledge base, improve the construction efficiency, reduce the labor cost, reduce the non-standardization of manual construction, and improve the quality of the constructed ontology knowledge base.

The invention discloses a tape cutting device and a cutting method, comprising a plurality of ring bodies arranged in parallel with a mutual spacing, a plurality of driving devices evenly arranged around the ring bodies, and a fixing rod detachably sleeved in the central hole of a long tape roll for fixing the long tape roll; an annular blade with a blade facing the center direction of the ring body is fixedly arranged on the inner circle of the ring body; the driving device comprises a plurality of active telescopic rods; one end of the active telescopic rods is respectively hinged on two ring bodies located at the outermost positions; the plurality of active telescopic rods jointly drive the plurality of ring bodies to swing around the long tape roll and cyclically approach and move away from the long tape roll to cut the long tape roll; the main cutting mode of the device is sliding cutting, so the cutting line of each cutting is continuous, so that the irregularity of the side cutting surface of the tape can be greatly reduced, and the side cutting surface of the tape can be made smoother and more complete, so as to maintain more lateral shear resistance and strength of the tape and make it not easy to break.

The application discloses a kind of based on distributed optical fiber perception and physical information neural network's expressway global traffic state estimation method, comprising:1 by DAS collection expressway vehicle vibration signal and transform into vehicle space-time trajectory chart, each grid flow, speed is calculated after grid operation, the space-time flow chart and space-time speed chart obtained as model input;2 design ResUNet network, configure multi-scale hollow convolution module at network bottleneck layer, expand receptive field;3 LWR continuity constraint, FD basic map constraint, ARZ momentum constraint traffic flow physical law are embedded into loss function, so that the repaired flow and speed information meet the characteristics of real traffic flow, realize traffic space-time chart accurate repair.The application multiplexes existing communication optical fiber, realizes expressway global continuous perception, model has data fitting ability and physical rationality, can accurately output global traffic flow speed, flow state, provides reliable data support for traffic event detection and traffic management use, and engineering practicability is high.

The present invention relates to the field of GPU data processing technology, and in particular to a GPU data processing system based on big data, including a data preprocessing module, a reorganization module, a stream processor, a cache module, and a control module, which is used to determine the corresponding processing method according to the access frequency of standard graphic data or determine whether the rendering accuracy meets the requirements in combination with the proportion of the number of graphics frames with rendering distortion when the GPU data processing accuracy is determined to be unsatisfactory according to the average error amount of the displayed graphics; and if the rendering accuracy does not meet the requirements, the number of segmentation types of the rendering picture is adjusted or the data reorganization method of the reorganization module is adjusted according to the average graphic error change amount of several dynamic updates. The present invention improves the GPU data processing accuracy and the accuracy of graphics rendering.

The invention discloses a low-loss iron-based nanocrystalline powder core and a preparation method thereof, and relates to the technical field of iron-based nanocrystalline powder cores, and the preparation method comprises the following steps: S1, heating and melting an iron-based amorphous mother alloy, crushing and atomizing, and carrying out ball milling to obtain uniform flaky iron-based nanocrystalline powder; s2, passivating the iron-based nanocrystalline powder, and then coating the iron-based nanocrystalline powder to obtain a pretreated material; the preparation method specifically comprises the following steps: firstly, treating iron-based nanocrystalline powder in an acid solution, introducing a mixed gas of carbon dioxide, oxygen and nitrogen while treating, and then adding a polyamide resin acetone solution for coating; and S3, the pretreated material is subjected to compression molding and crystallization annealing, and the iron-based nanocrystalline powder core is obtained. The nanocrystal powder core prepared by the method is low in loss.

The invention discloses a hydrogel coating device and method, and relates to the technical field of hydrogel coating. The device comprises a device base, a fiber coating roll, a gel coating and spraying device and a drying device, the gel coating and spraying device is fixedly installed outside the device base, and a swing spraying assembly is fixedly installed outside the gel coating and spraying device; the swing spraying assembly comprises a first sawtooth strip, a limiting rotating block, a first rotating disc, a gel fiber coating, a swing gear and a gel spraying pipe, by arranging the swing spraying assembly, gel can be more evenly sprayed on fiber cloth, and the heating and air drying assembly is arranged to be matched with an extrusion roller, so that the gel can be more evenly sprayed on the fiber cloth. According to the gel spraying device, gel cloth can be rapidly air-dried and shaped in the production process, the gel cloth is flatter through rolling and rolling of the extrusion rolling wheels, redundant gel after spraying can automatically drop into the gel coating box to be circularly sprayed, and waste of gel spraying materials can be reduced.

The invention relates to a spraying device for production of a trimmer shell. Comprising a spraying box, and the top end of the spraying box is rotationally connected with a cover plate; the top end of the cover plate is fixedly connected with a sealing rubber strip; an observation window is formed in the side wall of the spraying box; a water outlet is fixedly connected to the side wall of the spraying box; the side wall of the spraying box is fixedly connected with a pair of storage boxes; a pair of nozzles is arranged on the inner side wall of the spraying box; the spray head is connected to the storage box through a pipeline; the bottom end of the spraying box is rotationally connected with a first fixing rod. The side wall of the first fixing rod is fixedly connected with a pair of electric push rods; the side wall of the first fixing rod is slidably connected with a supporting ring. The supporting ring is pushed through the electric push rod, so that the ejector rod forms uniform supporting force on the inner side of the shell, the shell can be quickly fixed, the preparation time is shortened, and the defects after spraying caused by the fact that a clamp shields an outer spraying surface during spraying of a spray head due to clamping and fixing from the outer side during shell fixing are reduced.