479results about How to "Meet engineering needs" patented technology

The invention relates to the field of network information retrieval and mining, in particular to a system and method for identifying webpage types. The method comprises the following steps that a heuristic rule is predefined, and a heuristic rule list is generated; a predetermined feature is extracted from a training webpage to form a standard feature vector which is optimized twice to form a simplified feature set, a classifier and a feature extractor are established, and a classification model is generated through the classifier; based on an URL and a source code of a webpage to be identified, rule matching is carried out on the heuristic rule list; if matching succeeds, the webpage type of the webpage to be identified is output; if matching fails, the classifier is used for carrying out webpage type classification on the webpage to be identified. The system and method for identifying webpage types are flexible and convenient to use, high in identifying speed and high in identifying accuracy, big change is of no need when a cross language webpage is identified, identifying efficiency is high, and high actual use value is achieved.

The invention discloses a photovoltaic power station output predicting method based on the optimal similar day set. The photovoltaic power station output predicting method includes steps of 1) subjecting historical data to exception handling; 2) normalizing weather types and solar irradiance as characteristic vectors of similar output level days and clustering the same for analysis through cluster algorithm and determining the final similar output level day set; 3) selecting photovoltaic generation output power as characteristic vectors of similar curve-shape days, normalizing the photovoltaic generation output power and then clustering the same for analysis through the cluster algorithm so as to obtain classification results of different cluster numbers, and finally determining a final similar curve-shape day set; 4) acquiring the type which predicting days belong to according to the maximum principle of coefficient of association; 5) constituting the optimal similar set; 6) utilizing the optimal similar set as input and establishing an output predicting model to predict photovoltaic power of the predicting days. The photovoltaic power station output predicting method can accurately predict by selecting a history data with the highest correlation with a predicting day and is simple and feasible, and accuracy in prediction of the photovoltaic generation output power is improved.

The invention discloses a relational database based generation method of J2EE codes, comprising the following steps: 1. object code template definition setting: defining an invariable code as a template and a variable code as a macro according to an existing frame; 2. external data acquisition: acquiring a relational database list structure parameter, database object annotation information, a structuralized query command, a code generation configuration parameter and an operating system parameter; 3. logic operation: obtaining the macro related to an object code through logic operation according to the acquired parameters; and 4. code generation: applying the macro to the code template to generate the object code of an MVC three-layer frame. The invention realizes an integral technical proposal to generate the J2EE codes on the basis of the relational database, guided by a two to eight principle of J2EE software development and according to a two to eight principle of the Barrett law that 80 percent of a total result is formed by 20 percent of total consumed time.

The invention discloses a method for remotely upgrading an optical network unit. An operation management and maintenance protocol data unit is expanded and serves as a carrier for upgrading an interactive message between an optical network unit (ONU) and an optical line terminal (OLT). The method comprises the following steps that: the OLT sends an upgrade request message to the ONU, judges whether the ONU allows upgrade according to a received upgrade response message, and encapsulates an upgrade file in an upgrade message and transmits the upgrade file to the ONU if the upgrade is allowed; after the file is completely transmitted, the OLT sends a transmission completion notification message to the ONU; after receiving the upgrade file transmission completion notification message sent by the OLT, the ONU writes the upgrade file in a spare storage area or the current storage area; and the OLT starts from the storage area, and sets the storage area as a primary storage area if the OLT is successfully started, namely the OLT always starts from the storage area from now on. The invention discloses a system for remotely upgrading the optical network unit. The technical scheme is easy to realize and practical.

The invention provides a high-strength and high-Gd-content deformed magnesium alloy and a preparing method thereof. The magnesium alloy comprises the following elements of Mg, Gd, Zn and one or more kinds of Y, Zr and Mn. The preparing method includes the following steps that a magnesium alloy cast ingot high in Gd content is prepared; after the magnesium alloy cast ingot is subjected to two steps of T4 solution treatment, quenching is conducted at the temperature ranging from 80 DEG C to 100 DEG C, and a T4-state magnesium alloy cast ingot is obtained; the T4-state magnesium alloy cast ingot is subjected to different-temperature extrusion forming and is then quenched at the temperature ranging from 15 DEG C to 30 DEG C, and a bar or plate is obtained; and the bar or plate is subjected to cold rolling and cold drawing deformation at the room temperature, then artificial aging is conducted, and a T10-state deformed magnesium alloy, namely the high-strength and high-Gd-content deformed magnesium alloy is obtained. According to the high-strength and high-Gd-content deformed magnesium alloy and the preparing method thereof, the preparing technology is simple, the performance is stable, the success rate is high, the production efficiency is high, and the high-strength and high-Gd-content deformed magnesium alloy and the preparing method thereof are easily applied to industrial production.

The invention relates to a power distribution method for a hybrid energy storage system, and belongs to the technical field of new energy power generation systems. The method comprises the following steps: generating a fluctuating power signal; performing power distribution on the power signal through a low-pass filter; making response characteristics to reference power of energy storage equipment equivalent by using a power delay equivalent device; calculating the charge state of the energy storage equipment through an energy storage equipment charge state calculation device; judging and controlling the working state of the energy storage equipment by adopting a time constant comprehensive judgment device to obtain a corresponding variable low-pass filter time constant to adjust the power distribution. The power distribution strategy for the hybrid energy storage system based on the variable filter time constant of an energy storage equipment charge state disclosed by the invention has the function of changing the filter time constant of the low-pass filter in real time, and has the advantages of reducing the change range of the energy storage equipment charge state, slowing the saturation or the depletion of the energy storage equipment charge state to a certain degree, prolonging the service life of the energy storage equipment and the like.

The invention discloses a magnetic levitation train positioning and speed measuring system and method and a magnetic levitation train. The magnetic levitation train positioning and speed measuring system comprises a train-mounted coil, an induction loop line and a ground control unit. The train-mounted coil is installed on a body of the magnetic levitation train, the induction loop line and a magnetic levitation train synchronous linear motor traction winding are jointly laid on a track, and the winding manner of the induction loop line is the same as that of the magnetic levitation train synchronous linear motor traction winding. When high-frequency alternating current enters the train-mounted coil, an alternating magnetic field is formed on the periphery of the train-mounted coil, and the train-mounted coil is used as an excitation source of the alternating magnetic field. The induction loop line is used for generating induction voltage signals when the train-mounted coil moves along the induction loop line. The ground control unit is used for obtaining position and speed information of the magnetic levitation train according to the induction voltage signals sent by the induction loop line. By the adoption of the system, the structure of the system is simplified, the accuracy and reliability of the magnetic levitation train positioning and speed measuring system are improved, and the position and speed information of the magnetic levitation train is detected easily, conveniently and rapidly.

The invention discloses a foundation pile foundation model analyzing method and a test device for the same. The method includes: building a dispersing spring support model of to-be-tested pile-earth related actions, building a to-be-tested pile inner force and deformation equation and transmission matrix, and a to-be-tested pile foundation reaction analyzing basic equation, building different founding reaction models and programming a corresponding computerizing program, arranging the foundation pile foundation test device in the field, measuring horizontal displacement and turning angle, on the ground, of the to-be-tested pile, and computerizing and analyzing according to the computerizing program to determine corresponding foundation reaction model parameters. The foundation pile foundation test device comprises a standard beam, a standard pile, a reaction pile and the to-be-tested pile which are disposed on the ground, a jack and a force sensor are connected between the reaction pile and the to-be-tested pile, and a angle measuring device and a displacement measuring device are disposed on the to-be-tested pile. By on-site pile testing, multiple hypothesis models can be built for the foundation pile foundation, related model parameters can be determined, and certain universality is achieved.

The invention discloses an expressway traffic flow forecasting method based on time series. The expressway traffic flow forecasting method includes the steps of selecting one time scale, and carrying out statistics to build the traffic flow time series Q=(x); setting the value range of the number p of autoregression items and the number q of moving average items according to the selected time scale; solving the number p of the autoregression items and the number q of the moving average items; fitting the optimal number p of the autoregression items and the optimal number q of the moving average items through the maximum likelihood estimation in cooperation with the traffic flow time series Q to obtain an optimal ARMA model, and obtaining weight parameters of historical measured values and weight parameters of historical error values; solving the traffic flow forecasting series (please see the specifications) under the different time scales. By means of the expressway traffic flow forecasting method, an obtained time series model can better meet the requirement for forecasting various kinds of flow of an expressway, and the forecasting universality is improved; operation is simple, the forecasting efficiency is improved, the forecasting speed is increased, and the engineering requirement of traffic forecasting of the expressway is met.

The invention discloses a method for improving expansive soil and a construction method thereof. The method for improving expansive soil comprises the following steps of: 1) at the mass ratio of 15-20% of modifying agent and dry soil, evenly stirring the modifying agent and expansive soil to obtain composite soil; 2) determining the optimal moisture content of the composite soil; 3) regulating the moisture content of the composite soil obtained in step 1) to keep at the optimal moisture content; and under the natural condition, tightly covering materials to obtain the improved expansive soil. The method is characterized in that the modifying agent is blast furnace grain slag, and the blast furnace grain slag comprises the following main chemical ingredients in parts by mass: 38-43% of CaO, 33-38% of SiO2, 15-16% of Al2O3 and 4-8% of MgO. According to the improved expansive soil, the expansibility of the expansive soil can be eliminated, the water stability of the expansive soil is improved, and the strength required by the engineering is satisfied.

The invention discloses an underwater robot sliding mode control method based on adaptive backstepping in order to solve the technical problem that an existing underwater robot control method is poorin practicability. According to the technical scheme, the method comprises the steps that based on the decomposition of a complex nonlinear system, the controlling quantity of a total system is obtained by designing the virtual controlling quantity for a sub-system through the step-by-step recursion of a sliding mode; according to the buffeting problem caused when the system is not sure about theupper bound, and an RBF neural network is introduced into a controller so as to adoptively approach the internal indeterminacy and the external disturbance of the system. Finally, the control over thesystem buffeting is achieved, high-precision tracking control is achieved, the robustness of a closed-loop system is improved, the engineering requirements are met, and the practicability is high.

The present invention relates to a shield segment prefabrication construction method special for subway. The method comprises the steps of manufacturing and installing a reinforcement cage, assembling a mould, stirring, transporting and casting concrete, carring out segment surface, steam maintenance, removing the mould and segment maintenance. The segment is allowed to stand for one hour after the segment surface is finished. Firstly, the segment is covered with a maintaining cover and then is processed for non-pressure steam maintenance. The segment maintenance comprises pool maintenance and spray maintenance. The segment is allowed to stand for 30 to 60 minutes after the mould is removed, the pool maintenance is not less than seven days, and then the segment is transferred to a spray maintenance field. The concrete ring segment prefabrication construction used for an underground large-caliber pipeline shield can also refer to the shield segment prefabrication construction method which has reasonable technical distribution, smooth production, less resource investment, large production capacity, high production efficiency and high automatization degree and is good for forming a segment production line on a large scale.

The invention relates to a synchronous grouting material of shield tunneling and its preparation method. A cement-free anti-water dispersion and anti-water corrosion synchronous grouting material is mainly composed of the following components by weight ratio: 250-350kg / m<3> of phosphogypsum, 250-400kg / m<3> of fly ash, slag powder and steel slag powder, 25-40kg / m<3> of attapulgite clay, 1-1.4kg / m<3> of polyacrylamide, 2-2.8kg / m<3> of an aliphatic high efficiency water reducer, 800-1000kg / m<3> of river sand, and 200-400kg / m<3> of water. Specifically, for the sum of the weight of the fly ash, the slag powder and the steel slag powder, the fly ash accounts for 0.5-99%, the slag powder accounts for 0.5-99%, and the steel slag powder accounts for 0.5-99%. Mixing and stirring of the materials can obtain the required synchronous grouting material, which has the characteristics of anti-water dispersion, anti-water corrosion, good fluidity, good construction performance, no pipe blockage, long usable time, and fast increase of later strength.

The invention discloses a UHV DC converter station dynamic reactive power optimization method in consideration of the coordination function of a phase modifier and a system filtering requirement. Themethod comprises main steps of: 1) establishing a UHV DC converter station dynamic reactive power optimization model M; and 2) by using a hybrid reactive algorithm of dynamic reactive power optimization, calculating the UHV DC converter station dynamic reactive power optimization model M to optimize the UHV DC converter station. According to a DC transmission power plan and a system dynamic reactive standby requirement, the method enables the remaining capacity of a phase modifier to participate in the steady-state reactive voltage adjustment of the converter station, and takes account that the phase modifier has high upper and lower adjustment margins, thereby realizing the coordinate of the phase modifier and the DC system to fully utilize the performance of the phase modifier.

The invention provides a method for testing engine vibration noise under a whole-automobile condition. The method can utilize an easily obtained reference automobile resource to quickly accumulate the engine noise data of the reference automobile type so as to establish a noise database of the engine and the other engine of the reference automobile types, guide development and improvement of the novel engine, and guide improvement of the noise vibration level of the whole automobile product.

The invention relates to an initiation device and a control flow, in particular to the initiation device for an electronic detonator and the control flow thereof, aiming to solve the problems of low control efficiency, small load and the like on electronic detonator initiation in the prior art. The device comprises a power supply module, an authorization verification interface module, a human-computer interactive control module, an upper computer control module, a microprocessor control module, a voltage booster circuit module, a double-key control module, a high-voltage engaged switch circuit, a high / low voltage output module and a signal conditioning module. Besides, the invention also provides the control flow of the device. The working process of the whole device is described more specifically. The initiation device for an electronic detonator and the control flow thereof are mainly applied to the field of the electronic detonator initiation control.

The invention relates to a compound type slurry curing agent for conducting curing treatment on waste slurry generated in geotechnical engineering (for example, investigation drilling, cast-in-place pile, anchorage engineering, trenchless construction and the like), as well as the sludge at the bottom of reservoirs, ditches, ponds, pools and the like. In the invention, the compound type slurry curing agent is prepared by adding and mixing fine sand, lime, industrial waste gypsum, fly ash and super absorbent resin in cement curing agent evenly according to a certain proportion. The slurry curing agent greatly improves the curing effect of slurry, reduces the use amount of cement and lowers the cost. Besides, by doping industrial wastes such as waste gypsum, fly ash and the like in cement, the pollution to the environment is abated, the recycle of wastes is promoted and favorable economic and social benefits are available.

The invention relates to a method for measuring the phasor frequency of an electric system, which comprises the following steps of: performing low-pass filtering on the original fixed time interval discrete sampling value sequence by using a limited shock response digital low-pass filter to eliminate the interference of second and more harmonic components in the original input signal; respectively calculating a real part and an imaginary part of a sampling value sequence in previous 2T0 time starting from an ith sampling value, and calculating a phase according to a formula; and calculating the corrected current high-accuracy frequency value according to a formula. The method is not interfered by the reference level fluctuation of a power supply, is also applicable when the frequencies ofmultipath phasors of the electric system, which are connected to the same analog / digital (A / D) converter, are inconsistent, and cannot be continuously influenced by a previous calculated value; meanwhile, accuracy meets the actual requirement of engineering.

The invention discloses a method for determining the first weighting supporting resistance of shallow thin bedrock coal seam mining, and relates to the technical field of coal seam mining. The method comprises the steps that the sliding instability supporting force of a non-symmetric three-hinged arch structure with an upper roof not picked and the length of a rock are determined; the sliding instability supporting force of a monocline rock structure is determined after the upper roof is picked; the non-symmetric three-hinged arch structure with the upper roof not picked is analyzed, and a first weighting support-surrounding rock relation model of shallow thin bedrock coal seam mining is established; a load transfer coefficient is determined; the load of the rock on the upper roof during first weighting is determined; the pressure transferred through sliding instability of the upper roof structure is determined; the weight of an immediate roof rock column is determined, and the first weighting supporting resistance of shallow thin bedrock coal seam upper roof is determined. According to the method, a top plate structure for first weighting of a shallow thin bedrock coal seam is fully considered, a mechanical model is established for resolving, the reasonable supporting resistance of a support in the first weighting period is obtained, and the method has important theoretical significance and practical value in achieving safe and efficient production of a mine.

The invention relates to a civil engineering structural remote health monitoring system. The system can help know health state of civil engineering structure timely, protect safety of measurement technicians, decrease labor intensity and monitoring cost, shorten working time, increase efficiency, and realize multipoint synchronous monitoring. The system consists of an upper computer and a lower computer connected by a communication system. The lower computer comprises measurement modules which are connected with the communication system and a deconcentrator respectively, and the deconcentrator is connected with a sensor. The measurement modules comprise a single-chip computer; the single-chip computer is respectively connected with a pulse forming circuit, an amplified-filter circuit, a keyboard, a memory, a clock circuit, a communication circuit, a display screen and a temperature sensor. The single-chip computer, the pulse forming circuit and the amplified-filter circuit are all connected with the deconcentrator.

The invention discloses a method for evaluating the denitration capacity of an SCR reactor. The method comprises the following steps: carrying out pretreatment; obtaining historical data of each measuring point of the unit from a data source; performing data preprocessing and outputting; the inlet NOx concentration is subjected to oxygen correction, and calculating the ammonia consumption for removing unit NOx; dividing temperature and outlet NOx concentration working conditions and selecting typical working conditions; and fitting an ammonia consumption curve for removing the unit NOx, carrying out corresponding conversion, determining an upper limit according to the calculated corresponding relation between the ammonia consumption for removing the unit NOx and the ammonia escape rate, and evaluating the denitration capability of the SCR reactor by combining the slope of the trend line and the upper limit. According to the evaluation method for the denitration capability of the SCR reactor, provided by the invention, steady-state tracking and self-adaptive correction calculation can be realized.

The invention relates to a chemical grouting material for reinforcing loose and broken bedrock. The invention provides a chemical grouting material for reinforcing the loose and broken bedrock, in order to improve the flash point, the burning point and the antistatic performance of the grouting material, reducing the temperature in polymerization reaction and lowering the cost. According to the technical scheme provided by the invention, the chemical grouting material for reinforcing the loose and broken bedrock comprises two components, including a component A and a component B; according to the formulas of the raw materials, the component A comprises 90 to 100 parts by weight of sodium silicate or potassium metasilicate solution, 0 to 5 parts by weight of surface active agent, and 0 to 5 parts by weight of accelerator; the component B comprises 70 to 90 parts by weight of isocyanate, 5 to 20 parts by weight of plasticizer, 0.5 to 3 parts by weight of polyalkane silicone, and 0 to 5 parts by weight of catalyst; the components A and B are uniformly mixed respectively; and in use, the components A and B are mixed according to the volume ratio of 1: 1. The chemical grouting material can be applied to quickly reinforcing the broken coal bed and rock bed and blocking water leakage.

The invention discloses a bidirectional green wave coordination control method based on red lamp queue clearance constraint condition in an improved MAXBAND model. The method comprises the following steps of determining a single-point timing scheme of each intersection in trunk coordination; determining a common period of a coordinated road segment; correcting a constraint condition in a traditional MAXBAND model, wherein the step comprises correcting a green conflict constraint condition and an integral-time period constraint condition, and adding a head vehicle constraint condition and a determining screening condition; and through correction in a previous step, finally subdividing a MAXBAND model into two models, namely a model A and a model B, and solving by means of the improved MAXBAND model algorithm. According to the bidirectional green wave coordination control method, through performing geometric meaning correction on the red lamp queue clearance time in the traditional MAXBAND model, the determining screening condition of the algorithm model and the constraint condition of head vehicle mode are added, and a green wave coordination problem in actual engineering can be more accurately described and settled, thereby realizing an effect of improving optimal controlling in trunk bidirectional coordination.

The invention discloses an islanding method for a power distribution network comprising distributed generation (DG) and considering an interconnection switch. The method comprises the steps of obtaining a new islanding model of a power distribution system comprising the DG based on a graph model of the power distribution system, and constructing a graph model G of the power distribution system in a power-losing area after a failure. The method provides theoretical criteria for constructing the islanding method of the power distribution network comprising the DG and considering the interconnection switch, which meets an engineering demand, a solving strategy for the islanding of the power distribution network comprising a looped network structure is proposed based on the algorithm, an engineering application scope of a islanding technique comprising the DG is expanded, the defect that the existing similar technique is not applicable to the islanding of the power distribution network comprising the interconnection switch is overcome, the application scope is wider, development requirements of an intelligent power grid structure are met, the solving algorithm of the islanding of the distribution network comprising the DG and considering the interconnection switch is low in time calculation complexity, and the practical engineering demand is satisfied.

The invention discloses a high polymer grouting reinforcement material which comprises a component A and a component B. The component A comprises 100-120 parts of isocyanate, 3-5 parts of plasticizers, 0.5-1.5 parts of glycerol and 0.4-1.0 part of foam stabilizers. The component B comprises 60-70 parts of polymer polyol, 25-45 parts of inert diluents, 20-30 parts of flame retardants and 0.5-1.0 part of catalysts. The high polymer grouting reinforcement material is high in curing reaction speed, adjustable in curing time and low in curing reaction heat release, the possibility of smoldering and explosion of cured coal and rock masses can be greatly reduced when the high polymer grouting reinforcement material is applied to coal mine grouting reinforcement, foaming rate is low, foam is uniformly distributed, solids can reach 45-60MPa, engineering construction requirements are completely met, and engineering safety is guaranteed. Preparation steps are simple, operation is facilitated, and practicability is high.

The invention relates to a non-polar field bus system and a realization method, belonging to the field of field buses. The field bus system structurally comprises a master station DDC controller communication interface module and a slave station node controller communication interface module. The master station DDC controller communication interface module is formed by a data code sending circuit, a bus protection circuit, an EMC anti-interference circuit, a return code detection circuit and a bus overcurrent detection circuit. The slave station node controller communication interface module is formed by a data receiving circuit, a data transmitting circuit and a non-polar conversion circuit. The invention has the advantages that the structure of the field bus system is relatively simple and reasonable, the two buses are of non-polar design and the wiring construction is convenient.

The present invention provides a fast steering mirror system connected with a universal flexible hinge in a high-precision aim-stabilization system. A set of voice coil motors are taken as drivers to drive the high-frequency motion of a steering mirror; a set of optical grating micrometers are taken as angular position sensors to perform real-time feedback of angular position signals; and a universal flexible hinge bears the scheme of two-degree-of-freedom motion of the steering mirror. The motion features of the steering mirror are employed to design the material composition and structure form of the voice coil motors and the universal flexible hinge so as to solve the compensation problem of the optical system two-level stable loop residual errors on the premise of using the least drivers and the simplest bearing mechanism.

The invention discloses high performance cement soil and a preparation method thereof, which belongs to the field of civil engineering materials. Natural fibers and nano-materials are used synergistically to improve the performance of cement soil. The preparation method of the high performance cement soil of the invention comprises the following steps: drying, crushing, and sieving natural soil to obtain dry and fine natural soil; performing ultrasonic bonding of natural fibers and nano-materials to prepare a composite material of nano-materials and natural fibers, drying the composite material; adding the dried composite material of nano-materials and natural fibers into the dry and fine natural soil, adding water, uniformly stirring, putting the mixed soil in a wet container; adding cement and water into the mixed soil, and uniformly stirring to obtain the high performance cement soil. The preparation method of the invention greatly improves the toughness and strength of cement soil, and effectively solves the toughness or strength defects of cement soil caused by single addition of additives or fibers, and the prepared high performance cement soil is widely applicable to subgrade engineering, slope protection engineering, ground stabilization engineering and the like.

The invention discloses a motor speed calculating method, which carries out low-pass filter treatment on pulse input A and pulse input B. Each one of the filtered pulse input A and pulse input B is output in two paths for pulse selection and direction judgment. In the direction judgment, a current speed direction is judged according to a phase difference of the pulse input A and the pulse input B, and a direction signal is output. In the pulse selection, one pulse suitable for calculation is selected from the pulse input A and the pulse input B and is output by dividing into three paths for frequency calculation, zero-speed judgment and duty ratio calculation. In the zero-speed judgment, a zero-speed identifier is output when a current speed sensor has no output pulse. In the frequency calculation, a pulse frequency is processed, calculated and output. In the duty ratio calculation, a duty ratio signal under the current pulse is processed, calculated and output.. With the adoption of the motor speed calculating method provided by the invention, the technical problems that the motor speed calculating method in the prior art has low instantaneity, accuracy and stability, and is not suitable for multipath input signal treatment and parallel calculation function can be solved.

The invention discloses a vibration isolation structure based on bistable curved beams. A plurality of cell element structures are sequentially connected and regularly arranged in a plane or space to form the vibration isolation structure. Each cell element structure comprises a supporting rod, the bottom end of each supporting rod is connected with the top of the corresponding bistable curved beam, the two ends of each bistable curved beam are connected with the two ends of a connecting rod correspondingly, and a spring is connected between the top of each bistable curved beam and the corresponding connecting rod. The vibration isolation structure is simple in structure and easy to manufacture, the positive stiffness and the negative stiffness in a whole vibration isolation system are easy to adjust, then the force corresponding to a quasi-zero stiffness interval is adjusted so as to adapt to different loads, meanwhile, the minimum unit modular design can adapt to different structural environments, and the engineering requirements are met.