230results about How to "Flexible choice" patented technology

The invention discloses a scene generation and reduction-based wind and light energy random output prediction method and system, and the method comprises the steps: obtaining wind energy and solar power generation historical data of a target region, and selecting Weibull distribution and Beta distribution to construct a wind and light probability density function; based on a wind and light output historical data set, using a Latin hypercube sampling method to extract sample points from the probability density function to represent different wind power and solar power generation scenes; and based on the generated scene, performing scene reduction by using a K-means clustering method, and finally generating a wind and light output curve. The system part comprises a data acquisition module, a scene generation module, a scene reduction module and an output curve generation module, and by adopting an advanced scene generation and reduction technology, the fluctuation of new energy power generation can be managed and reduced more effectively, so that the stability and reliability of a power grid are improved, and the power generation efficiency is improved. And the problem of wind and light uncertainty under large-scale access of new energy is solved.

A compressed air energy storage underground cavern model test system designed according to a preset joint disclosed by the present invention comprises a simulation cavern, a loading system, a measurement system and a protection device, the measurement system comprises a plurality of temperature sensors, a plurality of pressure sensors, a plurality of crack meters and a plurality of optical fiber gas sensors, and the simulation cavern comprises a steel cylinder sealed by a sealing door. A deformation simulation layer, a lining layer, a leveling layer, a geotechnical cloth layer and a flexible sealing layer are arranged on the inner wall of the steel cylinder, a plurality of longitudinal exhaust pipelines are embedded in the joint of the deformation simulation layer and the lining layer, a plurality of exhaust pipes are inserted into the cylinder wall of the steel cylinder, each exhaust pipe is communicated with one longitudinal exhaust pipeline, a plurality of longitudinal prefabricated cracks are distributed in the lining layer, and the longitudinal prefabricated cracks are communicated with the geotechnical cloth layer. A crack meter is embedded in the middle of each longitudinal prefabricated crack, and the simulation cavern is communicated with the loading system through an air inlet in the sealing door. The test system is low in cost, convenient to operate, large in scale, comprehensive in test item, high in test precision and high in reference value for actual engineering.

The invention relates to a digital twinning-based rail transit star chain system and a corresponding communication scheme design optimization method. The system comprises a sensing network, a station center digital twin server cluster system, a station center supervision system and corresponding intelligent service businesses, wherein the sensing network covers rail transit star chain systems of trains, trackside infrastructures, station centers and the like in an omnibearing manner. According to the system and the method, all parameters of an urban rail transit system based on an orbital star chain in an actual physical domain are mapped to a virtual digital domain system, so that all-directional supervision of a full-connection system, effective utilization of multi-source data characteristics and short-time accurate modeling of a channel environment with variable position environment parameters are realized; a communication link selection strategy model is constructed in combination with a model-based reinforcement learning method, and loop optimization is realized and an optimal communication link decision scheme is finally obtained by continuously training the model in a digital domain and collecting samples and verifying the model in a physical domain.

The invention provides a power line carrier and wireless communication combined power data transmission method and system, and the method comprises the steps: collecting the operation data of terminal power equipment in real time through terminal collection equipment in a power distribution area, and adding a timestamp for the data; and the hybrid communication sub-equipment transmits the operation data with the timestamp to the hybrid communication main equipment of the substation by using the power line carrier. And after receiving the data, the main device calculates the communication distance between the power distribution area and the transformer substation according to the timestamp information, and selects a proper communication mode. And the master device continues to monitor and calculate the bit error rate, obtains parameters such as the signal-to-noise ratio, the attenuation value and the interference intensity of the communication channel, and inputs the parameters into the pre-trained support vector machine to predict the current bit error rate. And based on a prediction result, a communication distance, a load and other factors, a pre-trained reinforcement learning model is adopted to adaptively select an optimal communication mode, and the communication mode is dynamically adjusted to optimize a data transmission effect.

The invention relates to the technical field of mold ejection, and discloses a using method of a mold stripping ejection structure for a plastic forming mold, the mold stripping ejection structure comprises a fixed base, the two sides of the top of the fixed base are fixedly connected with fixed baffles correspondingly, the tops of the fixed baffles are fixedly connected with a first connecting frame, and the top of the first connecting frame is movably connected with a second connecting frame; the top of the second connecting frame is movably connected with a third connecting frame, when a mold is manufactured, an inverted buckle structure opposite to the mold opening direction is avoided as much as possible, and if the inverted buckle structure cannot be avoided, other design modes such as changing an inverted buckle into a slope structure can be considered, so that demolding can be smoothly performed during mold opening, and a simple product shape is designed; according to the invention, complex curved surfaces and corners are reduced, so that the mold manufacturing difficulty can be reduced, zero-degree mold stripping can be realized, a proper parting surface position can be selected, products can be smoothly separated during mold opening, the parting surface is selected at the maximum outline of the products as much as possible, and complex parting surface shapes are avoided.

The invention relates to a data processing method and device based on a low-power-consumption multi-core processor. The method comprises the steps that a register block is configured by multi-core processor data through a configuration network, and the register block sends a starting instruction to a data selector to start data transmission. After receiving the starting instruction, the data selector obtains data of the multi-core processor and determines first data participating in reduction, the first data is correspondingly stored in the FIFO register set according to the address of the multi-core processor, and storage information is obtained. And the control unit performs reduction operation on the first data according to the storage information to obtain a multi-core data processing result, and the multi-core data processing result is processed by the operation unit and then sent to the shared memory. By adopting the method, the memory access power consumption and delay in the reduction operation can be reduced under the condition that an instruction set is not changed.

The present application relates to a data processing method and device based on a low-power multi-core processor. The method includes: the multi-core processor data is configured through a network configuration register group, and the register group sends an enable instruction to a data selector to start data transmission. After receiving the enable instruction, the data selector obtains the multi-core processor data and determines the first data involved in the reduction. The first data is stored in the FIFO register group according to the address of the multi-core processor to obtain storage information. The control unit performs a reduction operation on the first data according to the storage information to obtain a multi-core data processing result, and sends the multi-core data processing result to a shared memory after being processed by an operation unit. The use of this method can reduce the memory access power consumption and delay in the reduction operation without changing the instruction set.

The invention discloses a wheel-foot type humanoid robot, which belongs to the technical field of robots and is characterized in that a robot head is arranged on a robot main body and can be used for visual perception; the tool magazine is arranged on the robot main body and is used for storing operation tools and a hand driving wheel with a hub motor; the two mechanical legs are arranged on the robot body, and leg driving wheels with hub motors are arranged at the foot ends of the mechanical legs. The two mechanical arms are arranged on the robot body, and quick-change connectors are installed at the tail ends of the mechanical arms. In the two-wheel-foot state, the ends of the leg driving wheels on the two mechanical legs are supported on the ground; in the four-wheel-foot form, the circumferential faces of the leg driving wheels on the two mechanical legs are supported on the ground, the two mechanical arms are provided with the hand driving wheels through the quick-change connectors, and the wheel-foot type robot bends to enable the circumferential faces of the hand driving wheels at the tail ends of the mechanical arms to be also supported on the ground. According to the wheel-foot type humanoid robot, the moving and operating capabilities of the humanoid robot are enhanced.

The invention discloses a three-season cultivation method for intercropping fresh corn with green soy beans and crop rotation of vegetables, relates to the field of agricultural planting, and aims to solve the problems that an existing planting method cannot fully utilize the characteristics of the fresh corn to achieve the yield increasing target and the planting income of the fresh corn is limited. The method comprises the following steps: 1, land selection: selecting fertile, flat and well-drained soil for planting; 2, corn seed selection: selecting a suitable fresh corn variety according to climate conditions of a planting area; 3, planting two seasons of fresh corn in one year, and intercropping green soy beans while planting the fresh corn; fourthly, after the fresh corn is harvested, ploughing, soil preparation and ridging are conducted, and then winter vegetables are planted; 5, performing field management and pest control. According to the method, the growth characteristic that the fresh corn is short in growth cycle is fully utilized, two-season fresh corn can be planted in one year, the planting income of the fresh corn is increased, and the fresh corn is promoted to meet marketization requirements.

The invention discloses a three-dimensional grid coding and decoding method and device, and relates to the technical field of coding and decoding, and the method comprises the steps: obtaining a reference grid and dividing the reference grid, and dividing the reference grid into at least one sub-reference grid according to the reference grid division; obtaining a to-be-coded grid and to-be-coded grid division, and dividing the to-be-coded grid into at least one sub-to-be-coded grid according to the to-be-coded grid division; and determining whether the sub-to-be-coded grids are coded by using the information of all or part of the sub-reference grids. According to the invention, a more accurate coding and decoding method can be provided.

The invention discloses a hierarchical adaptive code generation method and system and a medium, and the method comprises the steps: analyzing the context of a to-be-generated code based on a code token type prediction module, and recognizing the basic type of a next to-be-generated token, the basic type comprising a basic structure, code logic and advanced semantic content; on the basis of a decoding layer self-adaptive selection algorithm, automatically selecting a proper model layer to carry out output prediction; and generating tokens belonging to the basic structure, the code logic and the high-level semantic content respectively by using three different classification decoding strategies. According to the method, the reliability of the LLMs in a code generation task is improved, the model can more effectively utilize knowledge of each level in the model, structural or semantic errors of generated codes are reduced, and the logicality and the performability of the generated codes can be effectively ensured.

The invention discloses an electric tool fault type identification method and system based on data driving, which are used in the field of fault identification, and the method comprises the following steps: collecting operation data of an electric nail gun under different environment conditions and operation states; processing including time domain analysis and frequency domain analysis is executed on the operation data, and a waveform index and a rough principal component analysis method are used for extracting a feature set for distinguishing fault types in an analysis processing result; constructing a fault type identification model by using a support vector machine combination of K neighbors; performing fault type detection and recognition on the electric nail gun by using the trained fault type recognition model; and obtaining the fault type of the electric nail gun according to the analysis result. According to the invention, fault type detection and identification are carried out by using the model to quickly and accurately determine the fault type of the electric nail gun, the efficiency and accuracy of fault diagnosis are improved, and the cause and the feature of the fault are obtained by comparing the difference between different fault types.

The invention discloses an unmanned aerial vehicle path planning method, device and equipment and a readable storage medium, and the method comprises the steps: carrying out the mesh generation of a target region, responding to the unmanned aerial vehicle flight setting operation of a user, and selecting a target starting point and a target terminal point from each mesh vertex; determining a vertex set corresponding to the target grid point; adjacent grid vertexes of the flight forbidding grid are deleted from the vertex set, wherein a linear path between the adjacent grid vertexes and the target grid point needs to pass through the flight forbidding grid Calculating the flight path distance between the target grid point and the vertex of each adjacent grid; sequentially taking each adjacent grid vertex in the vertex set as a new target grid point, and returning to execute the step of determining the vertex set until the target end point is the adjacent grid vertex of the latest target grid point; and generating an unmanned aerial vehicle path based on the target flight path distance from the target starting point to the target ending point. Therefore, the redundancy of the flight path of the unmanned aerial vehicle is reduced through the synergistic effect of mesh generation, no-fly zone marking and vertex iteration path finding.

The invention discloses a terminal logistics distribution scheduling system and method based on GA and DP, and relates to the technical field of logistics distribution scheduling, the system comprises a terminal logistics sorting center and an information interaction client, the terminal logistics sorting center is connected with the information interaction client, and the terminal logistics sorting center is connected with the information interaction client. The tail end logistics sorting center comprises a goods unloading area, an express sorting system, a storage area, a goods loading area, a parking area and a mobile express station which are connected in sequence. According to the method, the problems that a distribution strategy is difficult to adjust in time and a traditional single-stage scheduling algorithm cannot be applied to a multi-stage complex network in an existing method are solved.

The invention provides a multi-terminal multi-size page adaptation method, which comprises the following steps of: accessing a unified page URL (Uniform Resource Locator) through a browser of terminal equipment, entering a view control component, and determining a page adaptation mode according to service requirements; calling a corresponding adaptation mode function based on the page adaptation mode, and calculating a view component type matched with the terminal equipment; and controlling the page to load the matched view component, and displaying the corresponding page view to the user through the client browser. According to the embodiment of the invention, a uniform access path URL is provided, two adaptation modes of a user agent identifier and a screen size are provided, the adaptation scheme is flexible to select and easy to expand, a uniform control function is provided, adaptation control logic is uniformly arranged at a client, front and rear ends are separated more thoroughly, UI coupling of multi-end, multi-device and multi-size page adaptation is reduced, and the user experience is improved. And the cross-end multiplexing of the logic layer improves the development and maintenance efficiency, and each end is loaded as required, so that the network flow is saved, and the page loading speed is improved.

The invention discloses a dressing and smelting combined treatment method for weathered tungsten ore, and belongs to the technical field of mineral processing. The method comprises the following steps: carrying out rotational flow classification on weathered or semi-weathered tungsten ore to obtain fine-fraction tungsten ore and superfine-fraction tungsten fine silt; the fine-fraction tungsten minerals are subjected to flotation through a reagent system containing a metal-based colloid collecting agent, high-grade tungsten concentrate is obtained, and the high-grade tungsten concentrate enters a wet smelting process; the method comprises the following steps: selectively flocculating and settling superfine tungsten fine silt through a functional modified polyacrylamide flocculating agent to obtain low-grade tungsten concentrate, and carrying out a sodium salt roasting-water leaching process on the low-grade tungsten concentrate to obtain a sodium tungstate solution. According to the method, the tungsten element in the weathered or semi-weathered tungsten ore can be deeply enriched and recycled, clean and efficient utilization and sustainable development of tungsten ore resources are promoted, and remarkable economic benefits are achieved.

The utility model discloses an energy storage prefabricated cabin which comprises a prefabricated base, adjusting sliding grooves are formed in the two sides of the bottom of the inner side of the prefabricated base in an opening and closing mode, prefabricated portal frames are movably arranged at the two ends of the inner side of the prefabricated base, and adjusting sliding blocks are fixedly connected to the two sides of the bottom of each prefabricated portal frame. According to the modular prefabricated cabin, the structural design of the modular prefabricated cabin is adopted, the prefabricated cabin can be divided into a plurality of independent modules, the modular prefabricated cabin can be flexibly disassembled and assembled anytime and anywhere, and the modular prefabricated cabin can be assembled and disassembled at any time and any place. All the modules can be quickly and flexibly assembled together to form the cabin body for a user to use, and the cabin body can also be quickly and flexibly disassembled into independent modules, so that the cabin body can be conveniently transported to various places to be used by the user, and convenience is provided for work and use of the user.

The invention relates to the technical field of water treatment, and particularly discloses a swimming pool circulating water automatic dosing device which comprises a connecting pipeline, a columnar box body is installed in the middle of the connecting pipeline in a communicating mode, a filter screen is arranged on the inner wall of the columnar box body in a surrounding mode, a top box body is fixed to the top of the columnar box body, and a disc is rotationally arranged in the top box body. A feeding hole communicated with the top of the columnar box body is formed in the bottom of the top box body, a plurality of round holes are formed in the disc in a surrounding and penetrating mode, a plurality of slotted holes are formed in the top of the top box body, the round holes can be coaxially aligned and matched with the feeding hole or the slotted holes, and the slotted holes correspond to a solid medicament adding mechanism and a liquid medicament adding mechanism respectively. A driving mechanism for driving the disc to rotate is arranged at the top of the top box body. According to the device, the operation of selectively adding medicaments can be performed according to requirements, the adding frequency can be flexibly controlled, and various and flexible use requirements are met.

The invention discloses a movable charging pile and a use method thereof, and relates to the field of charging piles, the movable charging pile comprises a plurality of chargers, each charger is provided with a clamping assembly, and a moving assembly is arranged below each charger; the clamping assembly comprises an upper clamping plate and a lower clamping plate, the moving assembly comprises a tooth-shaped belt, the upper clamping plate and the lower clamping plate can move relatively to be clamped on the tooth-shaped belt, and the tooth-shaped belt can move; the clamping assembly further comprises a two-way screw rod, and the upper clamping plate and the lower clamping plate are arranged on the two-way screw rod in a sleeving mode and are in threaded fit with the two-way screw rod. The charging device can prevent some parking spaces from being occupied by fuel vehicles, so that chargers corresponding to the parking spaces occupied by the fuel vehicles cannot be charged, meanwhile, the arrangement number of the chargers can be reduced, the charging requirement during mixed parking of the fuel vehicles and electric vehicles in the multiple parking spaces can be met, the positions of the chargers can be moved, the charging positions can be flexibly selected, and the charging efficiency is improved. The charger can stop moving in the moving process, collision of the charger is prevented, and the charger is prevented from being damaged.

The invention provides a method for downloading a webpage as a pdf. The method comprises the steps that S11, elements needing to be downloaded in an html page are identified, a main downloading area is constructed according to the identification, all the elements needing to be downloaded are put into corresponding modules according to the identification, and modules needing to be downloaded are formed; s12, elements in the module needing to be downloaded are sequentially subjected to initial processing; s13, constructing an element downloading module, inserting the primary processing element into the element downloading module, and then performing reprocessing on the primary processing element; s14, cutting elements which cannot be accommodated in the pdf download page through a cutting algorithm; and S15, generating a canvas object from the cut elements by utilizing html2canvas, inserting the canvas object into a pdf downloading page through a jspdf plug-in, and generating a pdf file for downloading. According to the method and the device, the to-be-downloaded elements of the html are identified and processed through the cutting algorithm, so that the to-be-downloaded elements are accurately cut, and the cut elements can be downloaded into the pdf file capable of being paged on the basis of one-to-one reduction of the webpage.

This invention belongs to the field of immunology and relates to a single-domain antibody against TSLP and its uses. The single-domain antibody is composed of heavy chains, including heavy chain CDR1 shown in any one of SEQ ID NO:42-SEQ ID NO:48 or SEQ ID NO:73, heavy chain CDR2 shown in any one of SEQ ID NO:49-SEQ ID NO:50, and heavy chain CDR3 shown in any one of SEQ ID NO:51-SEQ ID NO:61 or SEQ ID NO:74-SEQ ID NO:75. Compared with the prior art, the beneficial effects of this invention are: this invention uses bioengineering technology to screen for single-domain antibodies specifically targeting TSLP, and the antibody affinity is good.

The invention relates to the technical field of pollution detection devices, in particular to a waterfront water and soil loss non-point source pollution detection device and method.The waterfront water and soil loss non-point source pollution detection device comprises a water and soil loss monitor, the water and soil loss monitor is installed on a supporting plate, the supporting plate is in lap joint with the top of a ditch supporting plate, and wire bunching arms are rotationally connected to the two sides of the supporting plate; the surface of the bunching arm is provided with a bunching groove, the connecting end of the water and soil loss monitor is connected with a wire, one end of the wire is provided with a sensor probe, and the wire and the sensor probe both extend into the bunching groove; the device has the advantages that the bunching arms rotationally connected to the two sides of the supporting plate are ingenious in design, the bunching arms can swing downwards to the bottom of the ditch supporting plate, and a sensor probe installed at one end of a wire can extend into a ditch to detect a flowing water source. Meanwhile, the bunching groove formed in the surface of the bunching arm provides an ordered placement space for the wire and the sensor probe, and the wire bunching arm is fixed through the cooperation of the bunching groove and the hand-twisted screw, so that the wire and the sensor probe are effectively prevented from swinging under the impact of water flow.

The invention relates to the field of deep learning, and particularly provides a self-adaptive parameter adjustment method and device, and the method comprises the following steps: S1, data monitoring and preprocessing; s2, application of a parameter adjustment strategy library; s3, operation of an adaptive parameter adjustment engine; s4, performing hyper-parameter management; and S5, performing performance evaluation and feedback. Compared with the prior art, the self-adaptive parameter adjustment engine can be adopted, parameter configuration can be adjusted in real time according to data changes and feedback information in the learning process, and therefore the parameter adjustment period is greatly shortened.

The utility model discloses an electromagnetic compatibility test tool and system. The electromagnetic compatibility test tool comprises a shell. The input end is arranged on the shell; the output end is arranged on the shell; the capacitor bank is arranged in the shell, the capacitor bank comprises a plurality of capacitors, and the capacitance values of the plurality of capacitors in the capacitor bank are different; and the switch group is arranged in the shell, and the input end, the output end and one capacitor in the capacitor group are selectively switched on by the switch group. According to the embodiment of the invention, the test efficiency can be improved.

The invention is suitable for the technical field of cargo conveying and storage, and provides an automatic rubber sealing element feeding device which comprises a main frame assembly, a plurality of supporting seat assemblies are connected to the bottom of the main frame assembly, a transmission assembly is arranged at the top of the main frame assembly, and a material taking assembly is arranged on the outer wall of the main frame assembly. A material storage assembly is arranged at the top of the transmission assembly, and a discharging pipe is connected to the outer wall of the main frame assembly; the main frame assembly comprises a main seat, the top of the main seat is fixedly connected with a material storage frame mechanism, and the material storage frame mechanism comprises a connecting seat fixedly arranged on the main seat; the top of the inner wall of the socket is connected with a storage disc in an attached mode through a plurality of pressure sensors, and the pressure sensors are arranged, so that the storage amount of the rubber sealing pieces received by the upper portion of the storage disc can be sensed; and the stable state of the rubber sealing element is judged according to the display data of the pressure sensor, and the transmission assembly is matched for transmission, so that the situation of empty disc caused by falling of the rubber sealing element is avoided.

The utility model discloses a portable wall line drawing tool, which aims to solve the technical problems of high risk and low efficiency in high-altitude line drawing operation in the prior art. The tool mainly comprises an extension module, a sliding module and an extension rod. The core improvement lies in that the extension module is composed of an extension outer box with a sliding groove and an extension inner box sleeve with a sliding groove. By setting a smooth transition groove at the end of the extension inner box, smooth sliding of the sliding module in the full length range of the extension is realized. The sliding module is internally provided with an elastic line drawing module (such as a line drawing roller or a line drawing pen) and a lever type constant pressure ink supply mechanism, which ensures that the line drawing head can adapt to the concave-convex wall surface, keeps the line drawing pressure stable and the ink supply uniform. In addition, the level, laser and continuous scale line are integrated, which assists in rapid and accurate positioning. The utility model can enable the operator to safely complete the continuous and smooth line drawing operation on the high wall surface on the ground, and significantly improves the construction efficiency and quality.

The invention discloses a process control system for a disposable bioreactor, and the system comprises a data collection module which is used for collecting data in a production process in real time and generating csv files, and each csv file corresponds to a production batch; the data analysis module is used for selecting at least two csv files, selecting at least one parameter for comparison and generating a comparison result and a parameter trend chart; the parameter adjusting module is used for setting different parameter ranges according to different cultures and culture targets and adjusting parameters according to the comparison result to obtain parameter values and time finally set for next culture; and the automatic control module is used for controlling equipment according to the finally set parameter values and time of the next culture so as to ensure the optimal state of the production process. The invention further discloses a process control method of the disposable bioreactor. The method effectively solves the problem that in the prior art, setting of parameter values only depends on personal experience, it cannot be ensured that the production process is in the optimal state, and biological activity parameter values of final culture products are affected.

The present invention discloses a method for deep unblocking of a fixed pipe column of an oil well with complex blockage in an offshore oil field. The present invention adopts a new unblocking process of "bubble-unblock-wash-test-pressure-wash", and the specific method is: treatment of organic scale in the wellbore and near the well: conduct injection process, pump-inject organic unblocking agent, and soak for 12 to 48 hours; treatment of inorganic scale in the wellbore and near the well: pump-inject inorganic unblocking agent, shut down the well for 6 to 24 hours after unblocking; well washing operation; stepped pressure test injection, shut-in test; treatment of composite blockage in medium and long-distance wells: staged high pressure and large liquid volume injection; well washing operation. The method of the present invention is suitable for unblocking complex blockages in oil wells with heavy crude oil or polymer organic scale and inorganic scale and large blockage radius in offshore oil fields, and has the advantages of reducing operating costs and simplifying processes; conducting test operations, with flexible selectivity to ensure the effectiveness of measures; high pressure does not break the reservoir, preventing sand from coming out of the formation or rapid decrease in liquid volume after operation; large liquid volume injection, unblocking and instantaneous replenishment of formation energy.

The utility model discloses an assembly type building light top span beam structure, and particularly relates to the technical field of assembly type buildings, the assembly type building light top span beam structure comprises a first beam body and a second beam body, the first beam body is located on the left side of the second beam body, and a positioning hole is formed in one side of the first beam body; the upper side of the second beam body is fixedly provided with a positioning rod through a welding process, the size of the positioning rod is matched with the size of the positioning hole, during transportation, due to the fact that light materials are adopted and the structure is optimized, the weight of the span beam is greatly reduced, large-scale high-load-bearing transportation equipment and common vehicles are not needed, cost is reduced, and the requirement for route bearing is lowered; route selection is more flexible, complex terrain traffic can be adapted, transportation convenience is improved, during installation, the light span beam has more obvious advantages, large hoisting equipment, small equipment or manual assistance are not needed, operation difficulty is lowered, dependence on personnel skills and command ability is reduced, accident risks are reduced, and project cost is saved.

The invention provides a high-strength complex-section cavity product cutting device which comprises a height adjusting mechanism, a radian adjusting mechanism, a follow-up mechanism and a cutting unit which are sequentially arranged from bottom to top. The cutting-off unit comprises a vertical cutting-off mechanism used for cutting off material belts on the two sides of the cavity product and a horizontal cutting-off mechanism used for cutting off a reinforcing rib structure in the middle of the cavity product. The invention further provides a cutting-off method which comprises the following steps: pre-punching and cutting off a process hole in advance in a material belt before rolling forming, and integrally cutting off a cavity product by adopting a regional secondary cutting-off mode after rolling forming. Follow-up continuous cutting of high-strength complex section type cavity products can be achieved on a rolling line, the cutting efficiency is high, the quality is good, the product rework rate is greatly reduced, and the service life of a cutter is remarkably prolonged; the device is flexible to use and high in universality, and can be adapted to cold-bending profiles with various different section types through replacement of the standard cutting head.