1135results about How to "Ensure reliability" patented technology

The invention relates to the technical field of hydrological monitoring, and discloses a regional groundwater reserve change dynamic monitoring method based on gravity satellite time series data analysis. According to the method, the multi-source data scale effect and observation noise are effectively eliminated, the physical reliability and resolution of groundwater signal extraction are improved, and the recognition precision and early warning perspectiveness of the abnormal loss trend are enhanced. A full-chain monitoring closed loop of multi-source satellite observation, high-precision physical inversion and dynamic statistical benchmark is constructed, multi-dimensional environment data is aligned, a component separation strategy based on multi-element physical mechanism constraint is established based on a water balance principle, and anomaly diagnosis is performed in combination with a self-adaptively updated long-time-sequence historical database.

The invention relates to a self-adaptive firewall rule generation method and device based on real-time threat intelligence, and the method comprises the steps: carrying out the semantic analysis of a threat intelligence text, extracting attack indexes and attack technique and tactics labels, and generating an intelligence triple set and an attack technique and tactics label set; calling a language model to generate candidate rules based on an intelligence analysis result, carrying out credibility scoring, intercepting a low-scoring rule as a high-risk illusion rule, and entering other rules into a to-be-verified set; constructing a digital twinborn shadow sub-domain to perform real-time traffic verification on the rule set to be verified, and dividing the rule set to be verified into an effective rule set and an invalid rule set according to a verification result; constructing a rule dependence graph based on the invalid rule set to perform pollution traceability, and adding nodes with excessive pollution into an isolation list; and cleaning the historical training samples based on the isolation list and the interception rule log, and performing incremental training on the language model to generate an updated model.

The invention discloses a centralized phased array beam control method and system based on an FPGA, and relates to the technical field of phased array beam control, and the method comprises the steps: carrying out the real-time iterative operation through an incremental adaptive correction kernel in a centralized control FPGA, and obtaining an amplitude-phase correction increment and a corresponding target effective frame number; performing increment differential coding on the amplitude-phase correction increment and the corresponding target effective frame number in a centralized control FPGA (Field Programmable Gate Array) to generate an increment differential beam control message; sending the increment difference beam control message to an array element FPGA (Field Programmable Gate Array) at the front end of an array, executing frame-level atom switching according to a target effective frame number, and fusing the amplitude-phase correction increment and a locally stored old beam control weight in the switching process to obtain a final array element beam control weight; generating a real-time beam control directional diagram based on the final array element beam control weight; the stability and convergence precision of beam control are improved, and the bandwidth requirement of a control link is reduced.

The invention belongs to the field of wastewater treatment and industrial automatic control, and particularly relates to an intelligent dosing control method based on water quality online monitoring. The method comprises the following steps: capturing a water body spectrum fingerprint spectrum by using a full-spectrum scanning module to obtain a characteristic signal sequence; a chemical informatics molecular algorithm is introduced for preprocessing and feature enhancement, and molecular fingerprint information is recognized; a convolutional neural network model is constructed to decouple chemical oxygen demand, ammonia nitrogen, total phosphorus and water toxicity indexes from the spectral signals, and multi-parameter parallel inversion is achieved; and based on the inversion index and the spectral dynamic trend, the dosage is calculated through an intelligent decision-making algorithm, and accurate dosing of the medicament is driven. According to the invention, through fusion of full spectrum scanning and deep learning, high-precision anti-interference water quality perception is realized, potential risks can be identified and preventive intervention can be carried out, and the intelligent level and economical efficiency of dosing control are improved.

The embodiment of the invention discloses a data interaction method of a string type energy storage system, the energy storage system and a related device, the method is applied to a PCS controller in the string type energy storage system, and the string type energy storage system comprises a plurality of battery clusters, a cluster controller, a stack controller and the PCS controller; comprising the following steps: acquiring the total system power and the online cluster number of a plurality of battery clusters sent by a stack controller; acquiring operation state parameters of the battery clusters forwarded by the stack controller and correspondingly acquired by the cluster controller; determining the execution power of the plurality of battery clusters in response to the total power of the system, the online cluster number and the operation state parameters; and generating a control instruction when it is determined that a battery cluster fault exists according to the operation state parameters. Therefore, independent and accurate management of each cluster of batteries is realized, the overall energy efficiency of the system is improved, and meanwhile, the safety and reliability of the system are ensured through a dynamic power distribution strategy and a layered fault response mechanism.

The invention relates to the technical field of industrial intelligent manufacturing, and discloses a digital factory-oriented dynamic energy price response type production regulation and control system, which comprises a data acquisition module, a data processing module, a model establishment module, a scale regulation and control module, an instruction verification module, a visualization module and a closed-loop optimization module, the dynamic energy price is introduced into production scheduling, so that the comprehensive energy cost is reduced; a multi-agent reinforcement learning model is adopted for real-time response; an optimization strategy is decomposed into long-term, short-term and real-time instructions, macroscopic planning is carried out by using a cloud, and accurate control is executed by relying on edges; three defensive lines of safety, feasibility and stability are set for all control instructions, so that the harm of wrong instructions is effectively prevented; a decision view and a manual intervention interface are provided to ensure the reliability and credibility of the decision; the successful scheduling case is stored in a strategy library, online fine adjustment and offline training are carried out on the core model, and the continuous evolution ability is achieved.

The embodiment of the invention provides a client verification method and device and electronic equipment, and relates to the technical field of clients, and the method comprises the steps: obtaining a hardware fingerprint of a user terminal in real time under the condition that a verification probe is utilized to monitor a verification trigger event in the operation process of a client; under the condition that the verification trigger event is the first verification trigger event, obtaining a client identifier of the client; sending the hardware fingerprint of the user terminal and the client identifier of the client to a server, so that the server queries a historical binding fingerprint corresponding to the client based on the client identifier of the client, and verifies the hardware fingerprint of the user terminal based on the historical binding fingerprint of the client to obtain a first verification result; and receiving a first verification result fed back by the server. Therefore, the credibility requirements of various scenes on the client can be effectively met.

The invention discloses an inspection agent collaborative perception system based on semantic driving, and relates to the technical field of intelligent inspection, and the system comprises a prototype mapping module which collects inspection target category information and inspection target monitoring indexes, and generates an inspection task semantic prototype set and an inspection task semantic mapping table through semantic conversion; the semantic map module is used for collecting inspection image data and inspection video data through an inspection agent, performing pixel-level visual feature matching based on an inspection task semantic prototype set, and generating a semantic confidence map and a semantic request map; the coupling mutual sending module is used for executing sparse selection and directional mutual sending of semantic supply and demand coupling under the common constraint of the semantic confidence graph and the semantic request graph, and generating a multi-source sparse semantic feature queue; and the fusion remarking module is used for executing position-level semantic attention fusion and measurable sensitivity recalibration on the multi-source sparse semantic feature queue to generate a fusion probability graph and a fusion instance table.

The invention relates to the technical field of block chains, and discloses a block chain data encryption query method, device, equipment and medium, the method comprises the following steps: extracting data content information of to-be-chained data, using a homomorphic encryption algorithm to encrypt the data content information to obtain ciphertext content information; taking the ciphertext content information and the corresponding ciphertext hash value as on-chain evidence storage data to be stored in a block chain in a chaining manner; performing association mapping on the on-chain evidence storage data and the ciphertext access rule through the smart contract to generate an authority association rule corresponding to the on-chain evidence storage data; performing permission verification on the access permission in the data query request based on a permission association rule; after the permission verification is passed, querying the on-chain evidence storage data in a homomorphic encryption state according to the data query request to obtain an encrypted query result; and decrypting the encrypted query result to obtain target plaintext query data. The reliability of data encryption query can be improved.

The invention discloses a power production event type identification and grade evaluation method based on artificial intelligence, and belongs to the field of power safety production, and the method comprises the steps: receiving event description information inputted by a user, extracting event key elements through a natural language understanding model, converting the event key elements into query vectors, and obtaining the query vectors; searching related knowledge fragments in a pre-constructed electric power professional knowledge base, combining the event description information, the key elements and the knowledge fragments into enhanced cue words, inputting the enhanced cue words into a large language model subjected to field fine tuning, and finally, performing comprehensive analysis by the large language model to obtain the enhanced cue words. And generating a structured research and judgment result containing the event type, the level, the research and judgment basis and the submission requirement. According to the method, accurate and efficient research and judgment of the electric power security event are realized by fusing the retrieval enhancement generation technology and the field fine tuning large model, and interpretability and traceability of a conclusion are ensured by outputting research and judgment basis through the requirement model.

The invention discloses a method for dynamically constructing a UDF based on a large model. The method comprises the following steps: S1, constructing a multi-dimensional requirement cue word of a user-defined function according to characteristics and use requirements of a target platform; s2, the multi-dimensional requirement cue words are input into a pre-trained large language model for code generation, the large language model is subjected to multi-round iteration based on the multi-dimensional requirement cue words, and an optimal code sequence for achieving the user-defined function is output; s3, code style standardization is carried out on the optimal code sequence, and a compiler or an interpreter and a static analysis tool are respectively called to carry out grammar check and static analysis on the optimal code sequence, and constructing an optimization cue word according to an error log output by the compiler or the interpreter and a static analysis result output by the static analysis tool, and inputting the optimization cue word into the large language model to carry out iterative optimization on the optimal code sequence.

The invention relates to the technical field of photoelectric detection and radars, in particular to a calibration method, system and device for a radar and a laser anti-collision device and a medium, and aims to track and lock the same dynamic non-cooperative target through the laser anti-collision device and the phased array radar. Synchronously acquiring spherical coordinate observation data of the dynamic targets in the public view field under respective coordinate systems; and after the spherical coordinates are converted into rectangular coordinates, calculating a point set centroid, constructing a covariance matrix and performing singular value decomposition based on a rigid body transformation model, and directly solving a rotation matrix and a translation vector from a radar coordinate system to a laser anti-equipment-free coordinate system, thereby completing calibration. No external absolute coordinate reference is needed, only relative observation data of equipment is utilized, and the method has the advantages of being rapid in deployment, high in environmental adaptability, low in cost and high in calibration speed. The problems that in the prior art, a calibration system depends on RTK or a high-precision map, the environmental adaptability is poor, and the deployment requirement is high are solved.

The invention relates to the technical field of roadbed detection, and discloses a roadbed compaction quality detection method based on ultrasonic wave collaboration, and the roadbed compaction quality detection method comprises the following steps: collecting full-wave band ultrasonic echo signals, and obtaining current environment data; calculating a longitudinal wave speed, a transverse wave speed and a wave speed ratio, and extracting an attenuation coefficient and a frequency dispersion characteristic of the ultrasonic echo signal to obtain an acoustic characteristic set; inputting the acoustic feature set and the environmental data into an environmental compensation model, outputting a standard acoustic parameter set subjected to temperature, humidity and water content correction, analyzing the standard acoustic parameter set through a soil texture classification algorithm, and judging the current soil texture type; and combining the standard acoustic parameter set and the current soil texture type into a multi-dimensional feature vector, inputting the multi-dimensional feature vector into a compactness calculation model, and calculating to obtain a roadbed compactness value of the current measuring point. According to the method, high-precision compaction degree numerical calculation is realized, and intelligent and visual whole-process support is provided for roadbed construction quality.

The utility model relates to intelligent equipment pasting film device technical field especially discloses a split cooperation formula pasting film device, including bearing base and with bearing base cooperation use's positioning frame, external intelligent terminal passes via bearing base limit, be equipped with first resistance and second resistance on the positioning frame, the positioning frame is used for the outside of external intelligent terminal of bearing base limit and is set, makes external intelligent terminal between bearing base and positioning frame, first resistance is used for external resistance smart terminal's screen frame, external protective film is used for inserting between second resistance and external intelligent terminal's screen, positioning frame is equipped with abstracts the mouth, when positioning frame sets in the outside of external intelligent terminal, the release film of protective film is driven under the draw -in strip and takes out positioning frame through abstracts the mouth to make the functional film of protective film pastes to the screen surface of external intelligent terminal.

This utility model relates to the field of intelligent grounding box technology, and discloses an easily sealed intelligent grounding box, including a box body. A rotatable door is rotatably connected to the front end of the box body. Several rainproof covers are fixedly connected to both ends of the box body. Exhaust grooves are formed on the inner walls of the rainproof covers at both ends of the box body. A loading frame is fixedly connected to the bottom end of the inner wall of the box body. A compression plate is connected to the top of the loading frame via a sealing assembly. A fan is installed at the rear end of the inner wall of the loading frame. A connecting cover is fixedly connected to the top of the box body. Cooling fans are connected to the left and right ends of the connecting cover via heat dissipation assemblies. This utility model achieves efficient sealing, significantly improves waterproofing, ensures the reliability and long-term stability of cable installation, and enables cold air circulation. Hot air is discharged from the exhaust grooves of the rainproof covers, significantly reducing the box body temperature and drying the damp inner cavity, ensuring stable equipment operation.

This invention relates to the field of single-phase circuit fault location technology, specifically to a method and system for tracing single-phase circuit fault points. When measuring distributed capacitance, this application generates a rectangular oscillating wave, output to the capacitor under test, and uses an integrating circuit to measure the voltage value. The capacitance value is then confirmed based on the voltage value. Since distributed capacitance exists between conductors and its value is related to the conductor length, by measuring the distributed capacitance, the length of the conductor can be determined, i.e., the distance to the fault, thereby determining the fault location. This application can accurately locate fault points in wall-buried or underground circuits, reducing operating costs, and has the functions of accurately locating line fault points and testing the length of broken wires.

The present application relates to the technical field of conductive trolley, in particular to a lifting type graphitization inner string furnace conductive trolley, which comprises a liftable frame, and further comprises a sliding mechanism, a sliding support part and a compensation mechanism, the compensation mechanism is provided with at least two, and two are arranged oppositely, one end of the compensation mechanism is connected with the sliding mechanism, and the other end is connected with a pressure regulating part. The liftable frame is arranged, so that the conductive trolley can be flexibly adjusted according to the actual height of the furnace head electrode, precise butt joint with electrodes of different heights can be completed without the help of external lifting equipment, and the convenience and adaptability of furnace charging and furnace discharging operation are improved. Through the cooperation of the pressure regulating part and the compensation mechanism, the spring pre-tightening force can be adjusted online, the push plate is driven to move and extrude the spring, the spring increases the pre-tightening force, so that the compensation mechanism can always provide stable and reliable compensation effect for the electrode, and the stability and reliability of electrode conduction are ensured.

This utility model discloses an integrated hot-melt welding device for automotive sealing strips, relating to the field of automotive parts manufacturing technology. The device includes a worktable, support legs, an adjustment mechanism, and a quick-installation mechanism. The support legs are fixedly mounted on the bottom of the worktable, and an adjustment bracket is fixedly mounted on the top of the worktable. An adjustment mechanism for controlling the mating of the sealing strip is fixedly mounted at the bottom of the adjustment bracket, and a quick-installation mechanism for rapidly installing the mold cavity is fixedly mounted at the top of the adjustment bracket. Through the inclined engagement of the wedge block and roller, and the limiting design of the dovetail groove, a rocker arm drives the pressure plate to quickly press the mold cavity. This dual-fixing mechanism significantly shortens the mold cavity replacement and debugging time, reduces operational complexity, and enhances the installation stability of the mold cavity, adapting to the flexible production needs of multiple sealing strip models, and significantly improving the equipment's versatility and production efficiency.

The invention relates to a display module and a display device, and the display module comprises a display panel which is located in a bending region and a non-bending region; the supporting structure is arranged on one side, in the thickness direction, of the display panel, the supporting structure comprises a first supporting layer and a second supporting layer, and the first supporting layer and the second supporting layer are adjacently arranged in the first direction; at least part of the first supporting layer is located in the bending area, and at least part of the second supporting layer is located in the non-bending area. According to the display module, at least part of the first supporting layer with high elastic modulus corresponds to the bending area, so that local reinforced support with high deformation resistance is provided for the bending area which is prone to collapse when the display module is in the unfolded state; and at least part of the second supporting layer with low elastic modulus corresponds to the non-bending area, so that a flexible buffer area easy to compress and deform is provided for the non-bending area needing to absorb material redundancy when the display module is in the bending state.

The invention discloses a method and equipment for improving matching of a measured piece in an attenuation measurement system, belongs to the field of radio metering, and comprises the method for improving matching of the measured piece in the attenuation measurement system, and the core of the method is that a precise matching absorption load is added in a front-end transmission system of the measured piece; energy transmission is realized on a waveguide wide side of the precise matching absorption load through a coupling hole; a transmission waveguide is additionally arranged above the coupling hole, and energy is transmitted to a measured piece in the forward direction; and a precise matching absorption load is added in the reverse direction to absorb energy in the reverse direction, so that the measured piece matching improvement equipment in the attenuation measurement system is formed, and finally the measured piece matching of the attenuation measurement system is improved. According to the method and the equipment, the impedance matching of the measured piece is improved by using the precise matching load, the voltage standing-wave ratio of the load level is realized, and the attenuation measurement accuracy is improved. The tested piece matching improvement equipment developed by using the method is directly connected to two ends of the tested piece in an attenuation measurement system, so that the impedance matching of the tested piece is improved.

The utility model discloses a kind of peanut seeding devices for agricultural machinery, including carrier structure, which is dragged forward by agricultural machinery, ditching device, the ditching device is installed at the bottom of the carrier structure, and the ditching device is provided with more than one, seeding mechanism, the seeding mechanism is installed by the carrier structure, the seeding mechanism corresponds to the ditching device, and the seeding mechanism spreads seeds into planting groove opened by the ditching device;Soil covering mechanism, the soil covering mechanism is installed by the carrier structure, and the soil covering mechanism re-enters planting groove into soil that ditching device pushes away;The device advances in the form of dragging, and high-efficiency seeding can be realized.

The present application relates to the technical field of energy. The present application relates to a multi-power full-time energy tracking energy storage system. It comprises a data effective reservation unit, a PCS matching unit, a VSG control working unit, a parameter updating simulation unit and a simulation parameter reservation unit; the data effective reservation unit is used for collecting load power data, and simultaneously performing effectiveness analysis on the load power data; according to the analysis result, effectiveness reservation is performed; the PCS matching unit is used for establishing a PCS group, and simultaneously performing working parameter analysis on the multi-power PCS in combination with historical load power data in the PCS group; through the combination of the reserved real-time load power data and the PCS group, multi-power PCS efficiency value evaluation is performed, the predicted efficiency value of each multi-power PCS under the condition of real-time load power data can be obtained, the multi-power PCS with the highest predicted efficiency value is selected as the working parameter for input, working mode switching is performed, and the overall efficiency of the system can be improved.

This invention discloses a dual-purpose charging gun and charging system. The dual-purpose charging gun includes a gun body, a connector, a first control component, and a second control component. When the user chooses manual charging, the plugging and unplugging action can be easily completed by operating the operating end of the first control component, which conforms to the user's operating habits. When automatic charging is required, the robotic arm connects to the gun body through the connecting area, and the second control component drives the connector to complete the hooking or unhooking action under the command of the control system, realizing fully automatic plugging and unplugging. The two working modes can be freely switched. The user can interrupt the automatic process and switch to manual operation at any time, or switch to automatic mode when manual operation fails. This solves the problem of incompatibility between manual and automatic charging functions. It also ensures charging safety and reliability through a standard-compliant hook structure, retaining the flexibility and user habits of manual operation, while possessing the convenience and accuracy of automatic operation.

This invention relates to the field of kelp processing technology, and provides a high-efficiency air-drying equipment and method for kelp production, including a hot air circulation chamber, a circulating moving mechanism, a hanging module, a hook-off module, and an air-drying rack. The circulating moving mechanism includes a driving component, a transmission shaft, a gear, and a transmission belt. The gear is fixedly mounted on the surface of the transmission shaft. The driving component controls the rotation of the transmission shaft. The inner side of the transmission belt is connected to the gear. The hanging module includes a hook, an inclined surface, and a movable pin. The movable pin is fixedly connected to the hook body of the hook. The hook groove of the hook has inclined surfaces on both sides that face the component. The hook is used to suspend the rope loops binding the kelp. The hook-off module includes a limiting frame and a telescopic cylinder. The telescopic cylinder is located between the air-drying rack and the limiting frame. The hook body can contact the limiting frame, thereby ensuring smooth hook-off and realizing the function of automatically collecting the air-dried kelp.

The utility model discloses an unmanned aerial vehicle-mounted radar hanger structure with a damping function, which relates to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body, a base net rack and a pull net rack. The base net rack is connected to the bottom surface of the unmanned aerial vehicle body through bolts, and the lower part of the base net rack is provided with a sunken upper mounting groove; the pull net rack is arranged below the base net rack, the edge of the pull net rack is connected with the base net rack through a plurality of elastic connecting pieces, the upper portion of the pull net rack is provided with a sunken lower installation groove, and the lower installation groove corresponds to the upper installation groove and is used for being connected with the airborne radar in a clamped mode. Through the elastic connecting pieces between the base net rack and the towing net rack and the elastic supporting pieces on the towing net rack, vibration and impact generated in the flying process of the unmanned aerial vehicle can be effectively absorbed and buffered, precise equipment such as airborne radar can be protected, the performance of the unmanned aerial vehicle is improved, and the service life of the unmanned aerial vehicle is prolonged.

This utility model relates to the field of experimental tools for mice, specifically an ankle joint fixation device for testing mouse muscle strength. It includes an ankle joint fixator, a U-shaped clamping member mounted on one side of the ankle joint fixator, a threaded opening at the bottom of the ankle joint fixator, and a tightening bolt threaded onto the threaded opening. Several height adjustment slots are provided on the surface of the clamping member, which is used to clamp and position the sensor. In this ankle joint fixation device for testing mouse muscle strength, the U-shaped ankle joint fixator, combined with the clamping member and tightening bolt, can firmly and stably fix the mouse's ankle joint. This fixation method effectively avoids the mouse struggling and moving during the test, ensuring the accuracy and reliability of the muscle strength test. The height adjustment slots on the side of the clamping member, as well as the threaded sleeve and locking bolt on the upper part of the ankle joint fixator, allow the height of the device to be flexibly adjusted according to actual needs.

The invention discloses a method for identifying Xinhui pericarpium citri reticulatae and pericarpium citri reticulatae, which is characterized in that four active ingredients including hesperidin, nobiletin, tangeretin and 2-methylamino methyl benzoate are simultaneously detected through high performance liquid chromatography, and distinguishing is realized according to detection data. The method comprises the following specific steps: preparing a mixed reference solution and a test solution, extracting a test with methanol, performing ultrasonic treatment, and filtering, specific chromatographic conditions are adopted for detection, the detection wavelength of the hesperidin is 283nm, and the detection wavelengths of the other three components are 330nm. Test results show that the contents of the four active ingredients in the Xinhui pericarpium citri reticulatae are high, the content of methyl 2-methylaminobenzoate is not lower than 0.020%, the ratio of the total amount of nobiletin and tangeretin to hesperidin is not lower than 0.17, and related indexes of the pericarpium citri reticulatae are remarkably low. The method is efficient, accurate, stable and reliable, and provides technical support for standardizing market circulation, guaranteeing product quality and promoting standardized development of the Xinhui pericarpium citri reticulatae industry.

The utility model discloses a kind of flow channel of sensor plug-in installation, belong to flow channel technical field, its technical scheme main points include flow channel main body, the inside of flow channel main body is inserted with sensor main body, and the surface of sensor main body is threadedly connected with lock nut one, the upper end of flow channel main body surface is threadedly connected with lock nut two, by setting lock nut one and lock nut two, by screwing into the thread of the surface of sensor main body with lock nut one, and make lock nut two be installed on the surface of sensor main body, it can be by the thread connection of lock nut two and flow channel main body, so when sensor main body is inserted and installed to flow channel main body, only need to be by the thread cooperation of lock nut two and flow channel main body, it can be fixed and installed to sensor main body, effectively solved the problem that cable is easy to twist when traditional sensor is installed, ensure the stability and reliability of sensor signal transmission.

The utility model discloses an acrylic cabinet door which comprises a door plate body, U-shaped clamping grooves are formed in the four edges of the door plate body respectively, two first U-shaped protection rods and two second U-shaped protection rods which are symmetrically arranged are clamped in the four U-shaped clamping grooves respectively in a sliding mode, two long clamping grooves are formed in the inner walls of the two ends of each first U-shaped protection rod respectively, and the two long clamping grooves are clamped in the second U-shaped protection rods respectively. The two ends of each second U-shaped protection rod are fixedly connected with two long clamping blocks, and the long clamping blocks on the two second U-shaped protection rods are clamped in the long clamping grooves in the two first U-shaped protection rods in a sliding mode respectively. According to the door plank, the four edges of the door plank body are protected through the first U-shaped protection rods and the second U-shaped protection rods, and the first U-shaped protection rods and the second U-shaped protection rods on the door plank body can be conveniently disassembled and assembled through sliding fit of the long clamping blocks and the long clamping grooves.